source "drivers/gpu/drm/xen/Kconfig"
+source "drivers/gpu/drm/vboxvideo/Kconfig"
+
# Keep legacy drivers last
menuconfig DRM_LEGACY
obj-$(CONFIG_DRM_PL111) += pl111/
obj-$(CONFIG_DRM_TVE200) += tve200/
obj-$(CONFIG_DRM_XEN) += xen/
+obj-$(CONFIG_DRM_VBOXVIDEO) += vboxvideo/
--- /dev/null
+config DRM_VBOXVIDEO
+ tristate "Virtual Box Graphics Card"
+ depends on DRM && X86 && PCI
+ select DRM_KMS_HELPER
+ select DRM_TTM
+ select GENERIC_ALLOCATOR
+ help
+ This is a KMS driver for the virtual Graphics Card used in
+ Virtual Box virtual machines.
+
+ Although it is possible to build this driver built-in to the
+ kernel, it is advised to build it as a module, so that it can
+ be updated independently of the kernel. Select M to build this
+ driver as a module and add support for these devices via drm/kms
+ interfaces.
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0
+vboxvideo-y := hgsmi_base.o modesetting.o vbva_base.o \
+ vbox_drv.o vbox_fb.o vbox_hgsmi.o vbox_irq.o vbox_main.o \
+ vbox_mode.o vbox_prime.o vbox_ttm.o
+
+obj-$(CONFIG_DRM_VBOXVIDEO) += vboxvideo.o
--- /dev/null
+// SPDX-License-Identifier: MIT
+/* Copyright (C) 2006-2017 Oracle Corporation */
+
+#include <linux/vbox_err.h>
+#include "vbox_drv.h"
+#include "vboxvideo_guest.h"
+#include "vboxvideo_vbe.h"
+#include "hgsmi_channels.h"
+#include "hgsmi_ch_setup.h"
+
+/**
+ * Inform the host of the location of the host flags in VRAM via an HGSMI cmd.
+ * Return: 0 or negative errno value.
+ * @ctx: The context of the guest heap to use.
+ * @location: The offset chosen for the flags within guest VRAM.
+ */
+int hgsmi_report_flags_location(struct gen_pool *ctx, u32 location)
+{
+ struct hgsmi_buffer_location *p;
+
+ p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_HGSMI,
+ HGSMI_CC_HOST_FLAGS_LOCATION);
+ if (!p)
+ return -ENOMEM;
+
+ p->buf_location = location;
+ p->buf_len = sizeof(struct hgsmi_host_flags);
+
+ hgsmi_buffer_submit(ctx, p);
+ hgsmi_buffer_free(ctx, p);
+
+ return 0;
+}
+
+/**
+ * Notify the host of HGSMI-related guest capabilities via an HGSMI command.
+ * Return: 0 or negative errno value.
+ * @ctx: The context of the guest heap to use.
+ * @caps: The capabilities to report, see vbva_caps.
+ */
+int hgsmi_send_caps_info(struct gen_pool *ctx, u32 caps)
+{
+ struct vbva_caps *p;
+
+ p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA, VBVA_INFO_CAPS);
+ if (!p)
+ return -ENOMEM;
+
+ p->rc = VERR_NOT_IMPLEMENTED;
+ p->caps = caps;
+
+ hgsmi_buffer_submit(ctx, p);
+
+ WARN_ON_ONCE(p->rc < 0);
+
+ hgsmi_buffer_free(ctx, p);
+
+ return 0;
+}
+
+int hgsmi_test_query_conf(struct gen_pool *ctx)
+{
+ u32 value = 0;
+ int ret;
+
+ ret = hgsmi_query_conf(ctx, U32_MAX, &value);
+ if (ret)
+ return ret;
+
+ return value == U32_MAX ? 0 : -EIO;
+}
+
+/**
+ * Query the host for an HGSMI configuration parameter via an HGSMI command.
+ * Return: 0 or negative errno value.
+ * @ctx: The context containing the heap used.
+ * @index: The index of the parameter to query.
+ * @value_ret: Where to store the value of the parameter on success.
+ */
+int hgsmi_query_conf(struct gen_pool *ctx, u32 index, u32 *value_ret)
+{
+ struct vbva_conf32 *p;
+
+ p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA,
+ VBVA_QUERY_CONF32);
+ if (!p)
+ return -ENOMEM;
+
+ p->index = index;
+ p->value = U32_MAX;
+
+ hgsmi_buffer_submit(ctx, p);
+
+ *value_ret = p->value;
+
+ hgsmi_buffer_free(ctx, p);
+
+ return 0;
+}
+
+/**
+ * Pass the host a new mouse pointer shape via an HGSMI command.
+ * Return: 0 or negative errno value.
+ * @ctx: The context containing the heap to be used.
+ * @flags: Cursor flags.
+ * @hot_x: Horizontal position of the hot spot.
+ * @hot_y: Vertical position of the hot spot.
+ * @width: Width in pixels of the cursor.
+ * @height: Height in pixels of the cursor.
+ * @pixels: Pixel data, @see VMMDevReqMousePointer for the format.
+ * @len: Size in bytes of the pixel data.
+ */
+int hgsmi_update_pointer_shape(struct gen_pool *ctx, u32 flags,
+ u32 hot_x, u32 hot_y, u32 width, u32 height,
+ u8 *pixels, u32 len)
+{
+ struct vbva_mouse_pointer_shape *p;
+ u32 pixel_len = 0;
+ int rc;
+
+ if (flags & VBOX_MOUSE_POINTER_SHAPE) {
+ /*
+ * Size of the pointer data:
+ * sizeof (AND mask) + sizeof (XOR_MASK)
+ */
+ pixel_len = ((((width + 7) / 8) * height + 3) & ~3) +
+ width * 4 * height;
+ if (pixel_len > len)
+ return -EINVAL;
+
+ /*
+ * If shape is supplied, then always create the pointer visible.
+ * See comments in 'vboxUpdatePointerShape'
+ */
+ flags |= VBOX_MOUSE_POINTER_VISIBLE;
+ }
+
+ p = hgsmi_buffer_alloc(ctx, sizeof(*p) + pixel_len, HGSMI_CH_VBVA,
+ VBVA_MOUSE_POINTER_SHAPE);
+ if (!p)
+ return -ENOMEM;
+
+ p->result = VINF_SUCCESS;
+ p->flags = flags;
+ p->hot_X = hot_x;
+ p->hot_y = hot_y;
+ p->width = width;
+ p->height = height;
+ if (pixel_len)
+ memcpy(p->data, pixels, pixel_len);
+
+ hgsmi_buffer_submit(ctx, p);
+
+ switch (p->result) {
+ case VINF_SUCCESS:
+ rc = 0;
+ break;
+ case VERR_NO_MEMORY:
+ rc = -ENOMEM;
+ break;
+ case VERR_NOT_SUPPORTED:
+ rc = -EBUSY;
+ break;
+ default:
+ rc = -EINVAL;
+ }
+
+ hgsmi_buffer_free(ctx, p);
+
+ return rc;
+}
+
+/**
+ * Report the guest cursor position. The host may wish to use this information
+ * to re-position its own cursor (though this is currently unlikely). The
+ * current host cursor position is returned.
+ * Return: 0 or negative errno value.
+ * @ctx: The context containing the heap used.
+ * @report_position: Are we reporting a position?
+ * @x: Guest cursor X position.
+ * @y: Guest cursor Y position.
+ * @x_host: Host cursor X position is stored here. Optional.
+ * @y_host: Host cursor Y position is stored here. Optional.
+ */
+int hgsmi_cursor_position(struct gen_pool *ctx, bool report_position,
+ u32 x, u32 y, u32 *x_host, u32 *y_host)
+{
+ struct vbva_cursor_position *p;
+
+ p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA,
+ VBVA_CURSOR_POSITION);
+ if (!p)
+ return -ENOMEM;
+
+ p->report_position = report_position;
+ p->x = x;
+ p->y = y;
+
+ hgsmi_buffer_submit(ctx, p);
+
+ *x_host = p->x;
+ *y_host = p->y;
+
+ hgsmi_buffer_free(ctx, p);
+
+ return 0;
+}
--- /dev/null
+/* SPDX-License-Identifier: MIT */
+/* Copyright (C) 2006-2017 Oracle Corporation */
+
+#ifndef __HGSMI_CH_SETUP_H__
+#define __HGSMI_CH_SETUP_H__
+
+/*
+ * Tell the host the location of hgsmi_host_flags structure, where the host
+ * can write information about pending buffers, etc, and which can be quickly
+ * polled by the guest without a need to port IO.
+ */
+#define HGSMI_CC_HOST_FLAGS_LOCATION 0
+
+struct hgsmi_buffer_location {
+ u32 buf_location;
+ u32 buf_len;
+} __packed;
+
+/* HGSMI setup and configuration data structures. */
+
+#define HGSMIHOSTFLAGS_COMMANDS_PENDING 0x01u
+#define HGSMIHOSTFLAGS_IRQ 0x02u
+#define HGSMIHOSTFLAGS_VSYNC 0x10u
+#define HGSMIHOSTFLAGS_HOTPLUG 0x20u
+#define HGSMIHOSTFLAGS_CURSOR_CAPABILITIES 0x40u
+
+struct hgsmi_host_flags {
+ u32 host_flags;
+ u32 reserved[3];
+} __packed;
+
+#endif
--- /dev/null
+/* SPDX-License-Identifier: MIT */
+/* Copyright (C) 2006-2017 Oracle Corporation */
+
+#ifndef __HGSMI_CHANNELS_H__
+#define __HGSMI_CHANNELS_H__
+
+/*
+ * Each channel has an 8 bit identifier. There are a number of predefined
+ * (hardcoded) channels.
+ *
+ * HGSMI_CH_HGSMI channel can be used to map a string channel identifier
+ * to a free 16 bit numerical value. values are allocated in range
+ * [HGSMI_CH_STRING_FIRST;HGSMI_CH_STRING_LAST].
+ */
+
+/* A reserved channel value */
+#define HGSMI_CH_RESERVED 0x00
+/* HGCMI: setup and configuration */
+#define HGSMI_CH_HGSMI 0x01
+/* Graphics: VBVA */
+#define HGSMI_CH_VBVA 0x02
+/* Graphics: Seamless with a single guest region */
+#define HGSMI_CH_SEAMLESS 0x03
+/* Graphics: Seamless with separate host windows */
+#define HGSMI_CH_SEAMLESS2 0x04
+/* Graphics: OpenGL HW acceleration */
+#define HGSMI_CH_OPENGL 0x05
+
+/* The first channel index to be used for string mappings (inclusive) */
+#define HGSMI_CH_STRING_FIRST 0x20
+/* The last channel index for string mappings (inclusive) */
+#define HGSMI_CH_STRING_LAST 0xff
+
+#endif
--- /dev/null
+/* SPDX-License-Identifier: MIT */
+/* Copyright (C) 2006-2017 Oracle Corporation */
+
+#ifndef __HGSMI_DEFS_H__
+#define __HGSMI_DEFS_H__
+
+/* Buffer sequence type mask. */
+#define HGSMI_BUFFER_HEADER_F_SEQ_MASK 0x03
+/* Single buffer, not a part of a sequence. */
+#define HGSMI_BUFFER_HEADER_F_SEQ_SINGLE 0x00
+/* The first buffer in a sequence. */
+#define HGSMI_BUFFER_HEADER_F_SEQ_START 0x01
+/* A middle buffer in a sequence. */
+#define HGSMI_BUFFER_HEADER_F_SEQ_CONTINUE 0x02
+/* The last buffer in a sequence. */
+#define HGSMI_BUFFER_HEADER_F_SEQ_END 0x03
+
+/* 16 bytes buffer header. */
+struct hgsmi_buffer_header {
+ u32 data_size; /* Size of data that follows the header. */
+ u8 flags; /* HGSMI_BUFFER_HEADER_F_* */
+ u8 channel; /* The channel the data must be routed to. */
+ u16 channel_info; /* Opaque to the HGSMI, used by the channel. */
+
+ union {
+ /* Opaque placeholder to make the union 8 bytes. */
+ u8 header_data[8];
+
+ /* HGSMI_BUFFER_HEADER_F_SEQ_SINGLE */
+ struct {
+ u32 reserved1; /* A reserved field, initialize to 0. */
+ u32 reserved2; /* A reserved field, initialize to 0. */
+ } buffer;
+
+ /* HGSMI_BUFFER_HEADER_F_SEQ_START */
+ struct {
+ /* Must be the same for all buffers in the sequence. */
+ u32 sequence_number;
+ /* The total size of the sequence. */
+ u32 sequence_size;
+ } sequence_start;
+
+ /*
+ * HGSMI_BUFFER_HEADER_F_SEQ_CONTINUE and
+ * HGSMI_BUFFER_HEADER_F_SEQ_END
+ */
+ struct {
+ /* Must be the same for all buffers in the sequence. */
+ u32 sequence_number;
+ /* Data offset in the entire sequence. */
+ u32 sequence_offset;
+ } sequence_continue;
+ } u;
+} __packed;
+
+/* 8 bytes buffer tail. */
+struct hgsmi_buffer_tail {
+ /* Reserved, must be initialized to 0. */
+ u32 reserved;
+ /*
+ * One-at-a-Time Hash: http://www.burtleburtle.net/bob/hash/doobs.html
+ * Over the header, offset and for first 4 bytes of the tail.
+ */
+ u32 checksum;
+} __packed;
+
+/*
+ * The size of the array of channels. Array indexes are u8.
+ * Note: the value must not be changed.
+ */
+#define HGSMI_NUMBER_OF_CHANNELS 0x100
+
+#endif
--- /dev/null
+// SPDX-License-Identifier: MIT
+/* Copyright (C) 2006-2017 Oracle Corporation */
+
+#include <linux/vbox_err.h>
+#include "vbox_drv.h"
+#include "vboxvideo_guest.h"
+#include "vboxvideo_vbe.h"
+#include "hgsmi_channels.h"
+
+/**
+ * Set a video mode via an HGSMI request. The views must have been
+ * initialised first using @a VBoxHGSMISendViewInfo and if the mode is being
+ * set on the first display then it must be set first using registers.
+ * @ctx: The context containing the heap to use.
+ * @display: The screen number.
+ * @origin_x: The horizontal displacement relative to the first scrn.
+ * @origin_y: The vertical displacement relative to the first screen.
+ * @start_offset: The offset of the visible area of the framebuffer
+ * relative to the framebuffer start.
+ * @pitch: The offset in bytes between the starts of two adjecent
+ * scan lines in video RAM.
+ * @width: The mode width.
+ * @height: The mode height.
+ * @bpp: The colour depth of the mode.
+ * @flags: Flags.
+ */
+void hgsmi_process_display_info(struct gen_pool *ctx, u32 display,
+ s32 origin_x, s32 origin_y, u32 start_offset,
+ u32 pitch, u32 width, u32 height,
+ u16 bpp, u16 flags)
+{
+ struct vbva_infoscreen *p;
+
+ p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA,
+ VBVA_INFO_SCREEN);
+ if (!p)
+ return;
+
+ p->view_index = display;
+ p->origin_x = origin_x;
+ p->origin_y = origin_y;
+ p->start_offset = start_offset;
+ p->line_size = pitch;
+ p->width = width;
+ p->height = height;
+ p->bits_per_pixel = bpp;
+ p->flags = flags;
+
+ hgsmi_buffer_submit(ctx, p);
+ hgsmi_buffer_free(ctx, p);
+}
+
+/**
+ * Report the rectangle relative to which absolute pointer events should be
+ * expressed. This information remains valid until the next VBVA resize event
+ * for any screen, at which time it is reset to the bounding rectangle of all
+ * virtual screens.
+ * Return: 0 or negative errno value.
+ * @ctx: The context containing the heap to use.
+ * @origin_x: Upper left X co-ordinate relative to the first screen.
+ * @origin_y: Upper left Y co-ordinate relative to the first screen.
+ * @width: Rectangle width.
+ * @height: Rectangle height.
+ */
+int hgsmi_update_input_mapping(struct gen_pool *ctx, s32 origin_x, s32 origin_y,
+ u32 width, u32 height)
+{
+ struct vbva_report_input_mapping *p;
+
+ p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA,
+ VBVA_REPORT_INPUT_MAPPING);
+ if (!p)
+ return -ENOMEM;
+
+ p->x = origin_x;
+ p->y = origin_y;
+ p->cx = width;
+ p->cy = height;
+
+ hgsmi_buffer_submit(ctx, p);
+ hgsmi_buffer_free(ctx, p);
+
+ return 0;
+}
+
+/**
+ * Get most recent video mode hints.
+ * Return: 0 or negative errno value.
+ * @ctx: The context containing the heap to use.
+ * @screens: The number of screens to query hints for, starting at 0.
+ * @hints: Array of vbva_modehint structures for receiving the hints.
+ */
+int hgsmi_get_mode_hints(struct gen_pool *ctx, unsigned int screens,
+ struct vbva_modehint *hints)
+{
+ struct vbva_query_mode_hints *p;
+ size_t size;
+
+ if (WARN_ON(!hints))
+ return -EINVAL;
+
+ size = screens * sizeof(struct vbva_modehint);
+ p = hgsmi_buffer_alloc(ctx, sizeof(*p) + size, HGSMI_CH_VBVA,
+ VBVA_QUERY_MODE_HINTS);
+ if (!p)
+ return -ENOMEM;
+
+ p->hints_queried_count = screens;
+ p->hint_structure_guest_size = sizeof(struct vbva_modehint);
+ p->rc = VERR_NOT_SUPPORTED;
+
+ hgsmi_buffer_submit(ctx, p);
+
+ if (p->rc < 0) {
+ hgsmi_buffer_free(ctx, p);
+ return -EIO;
+ }
+
+ memcpy(hints, ((u8 *)p) + sizeof(struct vbva_query_mode_hints), size);
+ hgsmi_buffer_free(ctx, p);
+
+ return 0;
+}
--- /dev/null
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright (C) 2013-2017 Oracle Corporation
+ * This file is based on ast_drv.c
+ * Copyright 2012 Red Hat Inc.
+ * Authors: Dave Airlie <airlied@redhat.com>
+ * Michael Thayer <michael.thayer@oracle.com,
+ * Hans de Goede <hdegoede@redhat.com>
+ */
+#include <linux/console.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/vt_kern.h>
+
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_file.h>
+#include <drm/drm_ioctl.h>
+
+#include "vbox_drv.h"
+
+static int vbox_modeset = -1;
+
+MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
+module_param_named(modeset, vbox_modeset, int, 0400);
+
+static struct drm_driver driver;
+
+static const struct pci_device_id pciidlist[] = {
+ { PCI_DEVICE(0x80ee, 0xbeef) },
+ { }
+};
+MODULE_DEVICE_TABLE(pci, pciidlist);
+
+static struct drm_fb_helper_funcs vbox_fb_helper_funcs = {
+ .fb_probe = vboxfb_create,
+};
+
+static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ struct vbox_private *vbox;
+ int ret = 0;
+
+ if (!vbox_check_supported(VBE_DISPI_ID_HGSMI))
+ return -ENODEV;
+
+ vbox = kzalloc(sizeof(*vbox), GFP_KERNEL);
+ if (!vbox)
+ return -ENOMEM;
+
+ ret = drm_dev_init(&vbox->ddev, &driver, &pdev->dev);
+ if (ret) {
+ kfree(vbox);
+ return ret;
+ }
+
+ vbox->ddev.pdev = pdev;
+ vbox->ddev.dev_private = vbox;
+ pci_set_drvdata(pdev, vbox);
+ mutex_init(&vbox->hw_mutex);
+
+ ret = pci_enable_device(pdev);
+ if (ret)
+ goto err_dev_put;
+
+ ret = vbox_hw_init(vbox);
+ if (ret)
+ goto err_pci_disable;
+
+ ret = vbox_mm_init(vbox);
+ if (ret)
+ goto err_hw_fini;
+
+ ret = vbox_mode_init(vbox);
+ if (ret)
+ goto err_mm_fini;
+
+ ret = vbox_irq_init(vbox);
+ if (ret)
+ goto err_mode_fini;
+
+ ret = drm_fb_helper_fbdev_setup(&vbox->ddev, &vbox->fb_helper,
+ &vbox_fb_helper_funcs, 32,
+ vbox->num_crtcs);
+ if (ret)
+ goto err_irq_fini;
+
+ ret = drm_dev_register(&vbox->ddev, 0);
+ if (ret)
+ goto err_fbdev_fini;
+
+ return 0;
+
+err_fbdev_fini:
+ vbox_fbdev_fini(vbox);
+err_irq_fini:
+ vbox_irq_fini(vbox);
+err_mode_fini:
+ vbox_mode_fini(vbox);
+err_mm_fini:
+ vbox_mm_fini(vbox);
+err_hw_fini:
+ vbox_hw_fini(vbox);
+err_pci_disable:
+ pci_disable_device(pdev);
+err_dev_put:
+ drm_dev_put(&vbox->ddev);
+ return ret;
+}
+
+static void vbox_pci_remove(struct pci_dev *pdev)
+{
+ struct vbox_private *vbox = pci_get_drvdata(pdev);
+
+ drm_dev_unregister(&vbox->ddev);
+ vbox_fbdev_fini(vbox);
+ vbox_irq_fini(vbox);
+ vbox_mode_fini(vbox);
+ vbox_mm_fini(vbox);
+ vbox_hw_fini(vbox);
+ drm_dev_put(&vbox->ddev);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int vbox_pm_suspend(struct device *dev)
+{
+ struct vbox_private *vbox = dev_get_drvdata(dev);
+ int error;
+
+ error = drm_mode_config_helper_suspend(&vbox->ddev);
+ if (error)
+ return error;
+
+ pci_save_state(vbox->ddev.pdev);
+ pci_disable_device(vbox->ddev.pdev);
+ pci_set_power_state(vbox->ddev.pdev, PCI_D3hot);
+
+ return 0;
+}
+
+static int vbox_pm_resume(struct device *dev)
+{
+ struct vbox_private *vbox = dev_get_drvdata(dev);
+
+ if (pci_enable_device(vbox->ddev.pdev))
+ return -EIO;
+
+ return drm_mode_config_helper_resume(&vbox->ddev);
+}
+
+static int vbox_pm_freeze(struct device *dev)
+{
+ struct vbox_private *vbox = dev_get_drvdata(dev);
+
+ return drm_mode_config_helper_suspend(&vbox->ddev);
+}
+
+static int vbox_pm_thaw(struct device *dev)
+{
+ struct vbox_private *vbox = dev_get_drvdata(dev);
+
+ return drm_mode_config_helper_resume(&vbox->ddev);
+}
+
+static int vbox_pm_poweroff(struct device *dev)
+{
+ struct vbox_private *vbox = dev_get_drvdata(dev);
+
+ return drm_mode_config_helper_suspend(&vbox->ddev);
+}
+
+static const struct dev_pm_ops vbox_pm_ops = {
+ .suspend = vbox_pm_suspend,
+ .resume = vbox_pm_resume,
+ .freeze = vbox_pm_freeze,
+ .thaw = vbox_pm_thaw,
+ .poweroff = vbox_pm_poweroff,
+ .restore = vbox_pm_resume,
+};
+#endif
+
+static struct pci_driver vbox_pci_driver = {
+ .name = DRIVER_NAME,
+ .id_table = pciidlist,
+ .probe = vbox_pci_probe,
+ .remove = vbox_pci_remove,
+#ifdef CONFIG_PM_SLEEP
+ .driver.pm = &vbox_pm_ops,
+#endif
+};
+
+static const struct file_operations vbox_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .compat_ioctl = drm_compat_ioctl,
+ .mmap = vbox_mmap,
+ .poll = drm_poll,
+ .read = drm_read,
+};
+
+static struct drm_driver driver = {
+ .driver_features =
+ DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_ATOMIC,
+
+ .lastclose = drm_fb_helper_lastclose,
+
+ .fops = &vbox_fops,
+ .irq_handler = vbox_irq_handler,
+ .name = DRIVER_NAME,
+ .desc = DRIVER_DESC,
+ .date = DRIVER_DATE,
+ .major = DRIVER_MAJOR,
+ .minor = DRIVER_MINOR,
+ .patchlevel = DRIVER_PATCHLEVEL,
+
+ .gem_free_object_unlocked = vbox_gem_free_object,
+ .dumb_create = vbox_dumb_create,
+ .dumb_map_offset = vbox_dumb_mmap_offset,
+ .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
+ .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
+ .gem_prime_export = drm_gem_prime_export,
+ .gem_prime_import = drm_gem_prime_import,
+ .gem_prime_pin = vbox_gem_prime_pin,
+ .gem_prime_unpin = vbox_gem_prime_unpin,
+ .gem_prime_get_sg_table = vbox_gem_prime_get_sg_table,
+ .gem_prime_import_sg_table = vbox_gem_prime_import_sg_table,
+ .gem_prime_vmap = vbox_gem_prime_vmap,
+ .gem_prime_vunmap = vbox_gem_prime_vunmap,
+ .gem_prime_mmap = vbox_gem_prime_mmap,
+};
+
+static int __init vbox_init(void)
+{
+#ifdef CONFIG_VGA_CONSOLE
+ if (vgacon_text_force() && vbox_modeset == -1)
+ return -EINVAL;
+#endif
+
+ if (vbox_modeset == 0)
+ return -EINVAL;
+
+ return pci_register_driver(&vbox_pci_driver);
+}
+
+static void __exit vbox_exit(void)
+{
+ pci_unregister_driver(&vbox_pci_driver);
+}
+
+module_init(vbox_init);
+module_exit(vbox_exit);
+
+MODULE_AUTHOR("Oracle Corporation");
+MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL and additional rights");
--- /dev/null
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright (C) 2013-2017 Oracle Corporation
+ * This file is based on ast_drv.h
+ * Copyright 2012 Red Hat Inc.
+ * Authors: Dave Airlie <airlied@redhat.com>
+ * Michael Thayer <michael.thayer@oracle.com,
+ * Hans de Goede <hdegoede@redhat.com>
+ */
+#ifndef __VBOX_DRV_H__
+#define __VBOX_DRV_H__
+
+#include <linux/genalloc.h>
+#include <linux/io.h>
+#include <linux/irqreturn.h>
+#include <linux/string.h>
+#include <linux/version.h>
+
+#include <drm/drm_encoder.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_gem.h>
+
+#include <drm/ttm/ttm_bo_api.h>
+#include <drm/ttm/ttm_bo_driver.h>
+#include <drm/ttm/ttm_placement.h>
+#include <drm/ttm/ttm_memory.h>
+#include <drm/ttm/ttm_module.h>
+
+#include "vboxvideo_guest.h"
+#include "vboxvideo_vbe.h"
+#include "hgsmi_ch_setup.h"
+
+#define DRIVER_NAME "vboxvideo"
+#define DRIVER_DESC "Oracle VM VirtualBox Graphics Card"
+#define DRIVER_DATE "20130823"
+
+#define DRIVER_MAJOR 1
+#define DRIVER_MINOR 0
+#define DRIVER_PATCHLEVEL 0
+
+#define VBOX_MAX_CURSOR_WIDTH 64
+#define VBOX_MAX_CURSOR_HEIGHT 64
+#define CURSOR_PIXEL_COUNT (VBOX_MAX_CURSOR_WIDTH * VBOX_MAX_CURSOR_HEIGHT)
+#define CURSOR_DATA_SIZE (CURSOR_PIXEL_COUNT * 4 + CURSOR_PIXEL_COUNT / 8)
+
+#define VBOX_MAX_SCREENS 32
+
+#define GUEST_HEAP_OFFSET(vbox) ((vbox)->full_vram_size - \
+ VBVA_ADAPTER_INFORMATION_SIZE)
+#define GUEST_HEAP_SIZE VBVA_ADAPTER_INFORMATION_SIZE
+#define GUEST_HEAP_USABLE_SIZE (VBVA_ADAPTER_INFORMATION_SIZE - \
+ sizeof(struct hgsmi_host_flags))
+#define HOST_FLAGS_OFFSET GUEST_HEAP_USABLE_SIZE
+
+struct vbox_framebuffer {
+ struct drm_framebuffer base;
+ struct drm_gem_object *obj;
+};
+
+struct vbox_private {
+ /* Must be first; or we must define our own release callback */
+ struct drm_device ddev;
+ struct drm_fb_helper fb_helper;
+ struct vbox_framebuffer afb;
+
+ u8 __iomem *guest_heap;
+ u8 __iomem *vbva_buffers;
+ struct gen_pool *guest_pool;
+ struct vbva_buf_ctx *vbva_info;
+ bool any_pitch;
+ u32 num_crtcs;
+ /* Amount of available VRAM, including space used for buffers. */
+ u32 full_vram_size;
+ /* Amount of available VRAM, not including space used for buffers. */
+ u32 available_vram_size;
+ /* Array of structures for receiving mode hints. */
+ struct vbva_modehint *last_mode_hints;
+
+ int fb_mtrr;
+
+ struct {
+ struct ttm_bo_device bdev;
+ } ttm;
+
+ struct mutex hw_mutex; /* protects modeset and accel/vbva accesses */
+ struct work_struct hotplug_work;
+ u32 input_mapping_width;
+ u32 input_mapping_height;
+ /*
+ * Is user-space using an X.Org-style layout of one large frame-buffer
+ * encompassing all screen ones or is the fbdev console active?
+ */
+ bool single_framebuffer;
+ u8 cursor_data[CURSOR_DATA_SIZE];
+};
+
+#undef CURSOR_PIXEL_COUNT
+#undef CURSOR_DATA_SIZE
+
+struct vbox_gem_object;
+
+struct vbox_connector {
+ struct drm_connector base;
+ char name[32];
+ struct vbox_crtc *vbox_crtc;
+ struct {
+ u32 width;
+ u32 height;
+ bool disconnected;
+ } mode_hint;
+};
+
+struct vbox_crtc {
+ struct drm_crtc base;
+ bool disconnected;
+ unsigned int crtc_id;
+ u32 fb_offset;
+ bool cursor_enabled;
+ u32 x_hint;
+ u32 y_hint;
+ /*
+ * When setting a mode we not only pass the mode to the hypervisor,
+ * but also information on how to map / translate input coordinates
+ * for the emulated USB tablet. This input-mapping may change when
+ * the mode on *another* crtc changes.
+ *
+ * This means that sometimes we must do a modeset on other crtc-s then
+ * the one being changed to update the input-mapping. Including crtc-s
+ * which may be disabled inside the guest (shown as a black window
+ * on the host unless closed by the user).
+ *
+ * With atomic modesetting the mode-info of disabled crtcs gets zeroed
+ * yet we need it when updating the input-map to avoid resizing the
+ * window as a side effect of a mode_set on another crtc. Therefor we
+ * cache the info of the last mode below.
+ */
+ u32 width;
+ u32 height;
+ u32 x;
+ u32 y;
+};
+
+struct vbox_encoder {
+ struct drm_encoder base;
+};
+
+#define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
+#define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
+#define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
+#define to_vbox_framebuffer(x) container_of(x, struct vbox_framebuffer, base)
+
+bool vbox_check_supported(u16 id);
+int vbox_hw_init(struct vbox_private *vbox);
+void vbox_hw_fini(struct vbox_private *vbox);
+
+int vbox_mode_init(struct vbox_private *vbox);
+void vbox_mode_fini(struct vbox_private *vbox);
+
+void vbox_report_caps(struct vbox_private *vbox);
+
+void vbox_framebuffer_dirty_rectangles(struct drm_framebuffer *fb,
+ struct drm_clip_rect *rects,
+ unsigned int num_rects);
+
+int vbox_framebuffer_init(struct vbox_private *vbox,
+ struct vbox_framebuffer *vbox_fb,
+ const struct drm_mode_fb_cmd2 *mode_cmd,
+ struct drm_gem_object *obj);
+
+int vboxfb_create(struct drm_fb_helper *helper,
+ struct drm_fb_helper_surface_size *sizes);
+void vbox_fbdev_fini(struct vbox_private *vbox);
+
+struct vbox_bo {
+ struct ttm_buffer_object bo;
+ struct ttm_placement placement;
+ struct ttm_bo_kmap_obj kmap;
+ struct drm_gem_object gem;
+ struct ttm_place placements[3];
+ int pin_count;
+};
+
+#define gem_to_vbox_bo(gobj) container_of((gobj), struct vbox_bo, gem)
+
+static inline struct vbox_bo *vbox_bo(struct ttm_buffer_object *bo)
+{
+ return container_of(bo, struct vbox_bo, bo);
+}
+
+#define to_vbox_obj(x) container_of(x, struct vbox_gem_object, base)
+
+static inline u64 vbox_bo_gpu_offset(struct vbox_bo *bo)
+{
+ return bo->bo.offset;
+}
+
+int vbox_dumb_create(struct drm_file *file,
+ struct drm_device *dev,
+ struct drm_mode_create_dumb *args);
+
+void vbox_gem_free_object(struct drm_gem_object *obj);
+int vbox_dumb_mmap_offset(struct drm_file *file,
+ struct drm_device *dev,
+ u32 handle, u64 *offset);
+
+#define DRM_FILE_PAGE_OFFSET (0x10000000ULL >> PAGE_SHIFT)
+
+int vbox_mm_init(struct vbox_private *vbox);
+void vbox_mm_fini(struct vbox_private *vbox);
+
+int vbox_bo_create(struct vbox_private *vbox, int size, int align,
+ u32 flags, struct vbox_bo **pvboxbo);
+
+int vbox_gem_create(struct vbox_private *vbox,
+ u32 size, bool iskernel, struct drm_gem_object **obj);
+
+int vbox_bo_pin(struct vbox_bo *bo, u32 pl_flag);
+int vbox_bo_unpin(struct vbox_bo *bo);
+
+static inline int vbox_bo_reserve(struct vbox_bo *bo, bool no_wait)
+{
+ int ret;
+
+ ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL);
+ if (ret) {
+ if (ret != -ERESTARTSYS && ret != -EBUSY)
+ DRM_ERROR("reserve failed %p\n", bo);
+ return ret;
+ }
+ return 0;
+}
+
+static inline void vbox_bo_unreserve(struct vbox_bo *bo)
+{
+ ttm_bo_unreserve(&bo->bo);
+}
+
+void vbox_ttm_placement(struct vbox_bo *bo, int domain);
+int vbox_bo_push_sysram(struct vbox_bo *bo);
+int vbox_mmap(struct file *filp, struct vm_area_struct *vma);
+void *vbox_bo_kmap(struct vbox_bo *bo);
+void vbox_bo_kunmap(struct vbox_bo *bo);
+
+/* vbox_prime.c */
+int vbox_gem_prime_pin(struct drm_gem_object *obj);
+void vbox_gem_prime_unpin(struct drm_gem_object *obj);
+struct sg_table *vbox_gem_prime_get_sg_table(struct drm_gem_object *obj);
+struct drm_gem_object *vbox_gem_prime_import_sg_table(
+ struct drm_device *dev, struct dma_buf_attachment *attach,
+ struct sg_table *table);
+void *vbox_gem_prime_vmap(struct drm_gem_object *obj);
+void vbox_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
+int vbox_gem_prime_mmap(struct drm_gem_object *obj,
+ struct vm_area_struct *area);
+
+/* vbox_irq.c */
+int vbox_irq_init(struct vbox_private *vbox);
+void vbox_irq_fini(struct vbox_private *vbox);
+void vbox_report_hotplug(struct vbox_private *vbox);
+irqreturn_t vbox_irq_handler(int irq, void *arg);
+
+/* vbox_hgsmi.c */
+void *hgsmi_buffer_alloc(struct gen_pool *guest_pool, size_t size,
+ u8 channel, u16 channel_info);
+void hgsmi_buffer_free(struct gen_pool *guest_pool, void *buf);
+int hgsmi_buffer_submit(struct gen_pool *guest_pool, void *buf);
+
+static inline void vbox_write_ioport(u16 index, u16 data)
+{
+ outw(index, VBE_DISPI_IOPORT_INDEX);
+ outw(data, VBE_DISPI_IOPORT_DATA);
+}
+
+#endif
--- /dev/null
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright (C) 2013-2017 Oracle Corporation
+ * This file is based on ast_fb.c
+ * Copyright 2012 Red Hat Inc.
+ * Authors: Dave Airlie <airlied@redhat.com>
+ * Michael Thayer <michael.thayer@oracle.com,
+ */
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/string.h>
+#include <linux/sysrq.h>
+#include <linux/tty.h>
+
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_fourcc.h>
+
+#include "vbox_drv.h"
+#include "vboxvideo.h"
+
+#ifdef CONFIG_DRM_KMS_FB_HELPER
+static struct fb_deferred_io vbox_defio = {
+ .delay = HZ / 30,
+ .deferred_io = drm_fb_helper_deferred_io,
+};
+#endif
+
+static struct fb_ops vboxfb_ops = {
+ .owner = THIS_MODULE,
+ DRM_FB_HELPER_DEFAULT_OPS,
+ .fb_fillrect = drm_fb_helper_sys_fillrect,
+ .fb_copyarea = drm_fb_helper_sys_copyarea,
+ .fb_imageblit = drm_fb_helper_sys_imageblit,
+};
+
+int vboxfb_create(struct drm_fb_helper *helper,
+ struct drm_fb_helper_surface_size *sizes)
+{
+ struct vbox_private *vbox =
+ container_of(helper, struct vbox_private, fb_helper);
+ struct pci_dev *pdev = vbox->ddev.pdev;
+ struct drm_mode_fb_cmd2 mode_cmd;
+ struct drm_framebuffer *fb;
+ struct fb_info *info;
+ struct drm_gem_object *gobj;
+ struct vbox_bo *bo;
+ int size, ret;
+ u64 gpu_addr;
+ u32 pitch;
+
+ mode_cmd.width = sizes->surface_width;
+ mode_cmd.height = sizes->surface_height;
+ pitch = mode_cmd.width * ((sizes->surface_bpp + 7) / 8);
+ mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
+ sizes->surface_depth);
+ mode_cmd.pitches[0] = pitch;
+
+ size = pitch * mode_cmd.height;
+
+ ret = vbox_gem_create(vbox, size, true, &gobj);
+ if (ret) {
+ DRM_ERROR("failed to create fbcon backing object %d\n", ret);
+ return ret;
+ }
+
+ ret = vbox_framebuffer_init(vbox, &vbox->afb, &mode_cmd, gobj);
+ if (ret)
+ return ret;
+
+ bo = gem_to_vbox_bo(gobj);
+
+ ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM);
+ if (ret)
+ return ret;
+
+ info = drm_fb_helper_alloc_fbi(helper);
+ if (IS_ERR(info))
+ return PTR_ERR(info);
+
+ info->screen_size = size;
+ info->screen_base = (char __iomem *)vbox_bo_kmap(bo);
+ if (IS_ERR(info->screen_base))
+ return PTR_ERR(info->screen_base);
+
+ info->par = helper;
+
+ fb = &vbox->afb.base;
+ helper->fb = fb;
+
+ strcpy(info->fix.id, "vboxdrmfb");
+
+ info->fbops = &vboxfb_ops;
+
+ /*
+ * This seems to be done for safety checking that the framebuffer
+ * is not registered twice by different drivers.
+ */
+ info->apertures->ranges[0].base = pci_resource_start(pdev, 0);
+ info->apertures->ranges[0].size = pci_resource_len(pdev, 0);
+
+ drm_fb_helper_fill_fix(info, fb->pitches[0], fb->format->depth);
+ drm_fb_helper_fill_var(info, helper, sizes->fb_width,
+ sizes->fb_height);
+
+ gpu_addr = vbox_bo_gpu_offset(bo);
+ info->fix.smem_start = info->apertures->ranges[0].base + gpu_addr;
+ info->fix.smem_len = vbox->available_vram_size - gpu_addr;
+
+#ifdef CONFIG_DRM_KMS_FB_HELPER
+ info->fbdefio = &vbox_defio;
+ fb_deferred_io_init(info);
+#endif
+
+ info->pixmap.flags = FB_PIXMAP_SYSTEM;
+
+ DRM_DEBUG_KMS("allocated %dx%d\n", fb->width, fb->height);
+
+ return 0;
+}
+
+void vbox_fbdev_fini(struct vbox_private *vbox)
+{
+ struct vbox_framebuffer *afb = &vbox->afb;
+
+#ifdef CONFIG_DRM_KMS_FB_HELPER
+ if (vbox->fb_helper.fbdev && vbox->fb_helper.fbdev->fbdefio)
+ fb_deferred_io_cleanup(vbox->fb_helper.fbdev);
+#endif
+
+ drm_fb_helper_unregister_fbi(&vbox->fb_helper);
+
+ if (afb->obj) {
+ struct vbox_bo *bo = gem_to_vbox_bo(afb->obj);
+
+ vbox_bo_kunmap(bo);
+
+ if (bo->pin_count)
+ vbox_bo_unpin(bo);
+
+ drm_gem_object_put_unlocked(afb->obj);
+ afb->obj = NULL;
+ }
+ drm_fb_helper_fini(&vbox->fb_helper);
+
+ drm_framebuffer_unregister_private(&afb->base);
+ drm_framebuffer_cleanup(&afb->base);
+}
--- /dev/null
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright (C) 2017 Oracle Corporation
+ * Authors: Hans de Goede <hdegoede@redhat.com>
+ */
+
+#include "vbox_drv.h"
+#include "vboxvideo_vbe.h"
+#include "hgsmi_defs.h"
+
+/* One-at-a-Time Hash from http://www.burtleburtle.net/bob/hash/doobs.html */
+static u32 hgsmi_hash_process(u32 hash, const u8 *data, int size)
+{
+ while (size--) {
+ hash += *data++;
+ hash += (hash << 10);
+ hash ^= (hash >> 6);
+ }
+
+ return hash;
+}
+
+static u32 hgsmi_hash_end(u32 hash)
+{
+ hash += (hash << 3);
+ hash ^= (hash >> 11);
+ hash += (hash << 15);
+
+ return hash;
+}
+
+/* Not really a checksum but that is the naming used in all vbox code */
+static u32 hgsmi_checksum(u32 offset,
+ const struct hgsmi_buffer_header *header,
+ const struct hgsmi_buffer_tail *tail)
+{
+ u32 checksum;
+
+ checksum = hgsmi_hash_process(0, (u8 *)&offset, sizeof(offset));
+ checksum = hgsmi_hash_process(checksum, (u8 *)header, sizeof(*header));
+ /* 4 -> Do not checksum the checksum itself */
+ checksum = hgsmi_hash_process(checksum, (u8 *)tail, 4);
+
+ return hgsmi_hash_end(checksum);
+}
+
+void *hgsmi_buffer_alloc(struct gen_pool *guest_pool, size_t size,
+ u8 channel, u16 channel_info)
+{
+ struct hgsmi_buffer_header *h;
+ struct hgsmi_buffer_tail *t;
+ size_t total_size;
+ dma_addr_t offset;
+
+ total_size = size + sizeof(*h) + sizeof(*t);
+ h = gen_pool_dma_alloc(guest_pool, total_size, &offset);
+ if (!h)
+ return NULL;
+
+ t = (struct hgsmi_buffer_tail *)((u8 *)h + sizeof(*h) + size);
+
+ h->flags = HGSMI_BUFFER_HEADER_F_SEQ_SINGLE;
+ h->data_size = size;
+ h->channel = channel;
+ h->channel_info = channel_info;
+ memset(&h->u.header_data, 0, sizeof(h->u.header_data));
+
+ t->reserved = 0;
+ t->checksum = hgsmi_checksum(offset, h, t);
+
+ return (u8 *)h + sizeof(*h);
+}
+
+void hgsmi_buffer_free(struct gen_pool *guest_pool, void *buf)
+{
+ struct hgsmi_buffer_header *h =
+ (struct hgsmi_buffer_header *)((u8 *)buf - sizeof(*h));
+ size_t total_size = h->data_size + sizeof(*h) +
+ sizeof(struct hgsmi_buffer_tail);
+
+ gen_pool_free(guest_pool, (unsigned long)h, total_size);
+}
+
+int hgsmi_buffer_submit(struct gen_pool *guest_pool, void *buf)
+{
+ phys_addr_t offset;
+
+ offset = gen_pool_virt_to_phys(guest_pool, (unsigned long)buf -
+ sizeof(struct hgsmi_buffer_header));
+ outl(offset, VGA_PORT_HGSMI_GUEST);
+ /* Make the compiler aware that the host has changed memory. */
+ mb();
+
+ return 0;
+}
--- /dev/null
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright (C) 2016-2017 Oracle Corporation
+ * This file is based on qxl_irq.c
+ * Copyright 2013 Red Hat Inc.
+ * Authors: Dave Airlie
+ * Alon Levy
+ * Michael Thayer <michael.thayer@oracle.com,
+ * Hans de Goede <hdegoede@redhat.com>
+ */
+
+#include <linux/pci.h>
+#include <drm/drm_irq.h>
+#include <drm/drm_probe_helper.h>
+
+#include "vbox_drv.h"
+#include "vboxvideo.h"
+
+static void vbox_clear_irq(void)
+{
+ outl((u32)~0, VGA_PORT_HGSMI_HOST);
+}
+
+static u32 vbox_get_flags(struct vbox_private *vbox)
+{
+ return readl(vbox->guest_heap + HOST_FLAGS_OFFSET);
+}
+
+void vbox_report_hotplug(struct vbox_private *vbox)
+{
+ schedule_work(&vbox->hotplug_work);
+}
+
+irqreturn_t vbox_irq_handler(int irq, void *arg)
+{
+ struct drm_device *dev = (struct drm_device *)arg;
+ struct vbox_private *vbox = (struct vbox_private *)dev->dev_private;
+ u32 host_flags = vbox_get_flags(vbox);
+
+ if (!(host_flags & HGSMIHOSTFLAGS_IRQ))
+ return IRQ_NONE;
+
+ /*
+ * Due to a bug in the initial host implementation of hot-plug irqs,
+ * the hot-plug and cursor capability flags were never cleared.
+ * Fortunately we can tell when they would have been set by checking
+ * that the VSYNC flag is not set.
+ */
+ if (host_flags &
+ (HGSMIHOSTFLAGS_HOTPLUG | HGSMIHOSTFLAGS_CURSOR_CAPABILITIES) &&
+ !(host_flags & HGSMIHOSTFLAGS_VSYNC))
+ vbox_report_hotplug(vbox);
+
+ vbox_clear_irq();
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * Check that the position hints provided by the host are suitable for GNOME
+ * shell (i.e. all screens disjoint and hints for all enabled screens) and if
+ * not replace them with default ones. Providing valid hints improves the
+ * chances that we will get a known screen layout for pointer mapping.
+ */
+static void validate_or_set_position_hints(struct vbox_private *vbox)
+{
+ struct vbva_modehint *hintsi, *hintsj;
+ bool valid = true;
+ u16 currentx = 0;
+ int i, j;
+
+ for (i = 0; i < vbox->num_crtcs; ++i) {
+ for (j = 0; j < i; ++j) {
+ hintsi = &vbox->last_mode_hints[i];
+ hintsj = &vbox->last_mode_hints[j];
+
+ if (hintsi->enabled && hintsj->enabled) {
+ if (hintsi->dx >= 0xffff ||
+ hintsi->dy >= 0xffff ||
+ hintsj->dx >= 0xffff ||
+ hintsj->dy >= 0xffff ||
+ (hintsi->dx <
+ hintsj->dx + (hintsj->cx & 0x8fff) &&
+ hintsi->dx + (hintsi->cx & 0x8fff) >
+ hintsj->dx) ||
+ (hintsi->dy <
+ hintsj->dy + (hintsj->cy & 0x8fff) &&
+ hintsi->dy + (hintsi->cy & 0x8fff) >
+ hintsj->dy))
+ valid = false;
+ }
+ }
+ }
+ if (!valid)
+ for (i = 0; i < vbox->num_crtcs; ++i) {
+ if (vbox->last_mode_hints[i].enabled) {
+ vbox->last_mode_hints[i].dx = currentx;
+ vbox->last_mode_hints[i].dy = 0;
+ currentx +=
+ vbox->last_mode_hints[i].cx & 0x8fff;
+ }
+ }
+}
+
+/* Query the host for the most recent video mode hints. */
+static void vbox_update_mode_hints(struct vbox_private *vbox)
+{
+ struct drm_connector_list_iter conn_iter;
+ struct drm_device *dev = &vbox->ddev;
+ struct drm_connector *connector;
+ struct vbox_connector *vbox_conn;
+ struct vbva_modehint *hints;
+ u16 flags;
+ bool disconnected;
+ unsigned int crtc_id;
+ int ret;
+
+ ret = hgsmi_get_mode_hints(vbox->guest_pool, vbox->num_crtcs,
+ vbox->last_mode_hints);
+ if (ret) {
+ DRM_ERROR("vboxvideo: hgsmi_get_mode_hints failed: %d\n", ret);
+ return;
+ }
+
+ validate_or_set_position_hints(vbox);
+
+ drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
+ drm_connector_list_iter_begin(dev, &conn_iter);
+ drm_for_each_connector_iter(connector, &conn_iter) {
+ vbox_conn = to_vbox_connector(connector);
+
+ hints = &vbox->last_mode_hints[vbox_conn->vbox_crtc->crtc_id];
+ if (hints->magic != VBVAMODEHINT_MAGIC)
+ continue;
+
+ disconnected = !(hints->enabled);
+ crtc_id = vbox_conn->vbox_crtc->crtc_id;
+ vbox_conn->mode_hint.width = hints->cx;
+ vbox_conn->mode_hint.height = hints->cy;
+ vbox_conn->vbox_crtc->x_hint = hints->dx;
+ vbox_conn->vbox_crtc->y_hint = hints->dy;
+ vbox_conn->mode_hint.disconnected = disconnected;
+
+ if (vbox_conn->vbox_crtc->disconnected == disconnected)
+ continue;
+
+ if (disconnected)
+ flags = VBVA_SCREEN_F_ACTIVE | VBVA_SCREEN_F_DISABLED;
+ else
+ flags = VBVA_SCREEN_F_ACTIVE | VBVA_SCREEN_F_BLANK;
+
+ hgsmi_process_display_info(vbox->guest_pool, crtc_id, 0, 0, 0,
+ hints->cx * 4, hints->cx,
+ hints->cy, 0, flags);
+
+ vbox_conn->vbox_crtc->disconnected = disconnected;
+ }
+ drm_connector_list_iter_end(&conn_iter);
+ drm_modeset_unlock(&dev->mode_config.connection_mutex);
+}
+
+static void vbox_hotplug_worker(struct work_struct *work)
+{
+ struct vbox_private *vbox = container_of(work, struct vbox_private,
+ hotplug_work);
+
+ vbox_update_mode_hints(vbox);
+ drm_kms_helper_hotplug_event(&vbox->ddev);
+}
+
+int vbox_irq_init(struct vbox_private *vbox)
+{
+ INIT_WORK(&vbox->hotplug_work, vbox_hotplug_worker);
+ vbox_update_mode_hints(vbox);
+
+ return drm_irq_install(&vbox->ddev, vbox->ddev.pdev->irq);
+}
+
+void vbox_irq_fini(struct vbox_private *vbox)
+{
+ drm_irq_uninstall(&vbox->ddev);
+ flush_work(&vbox->hotplug_work);
+}
--- /dev/null
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright (C) 2013-2017 Oracle Corporation
+ * This file is based on ast_main.c
+ * Copyright 2012 Red Hat Inc.
+ * Authors: Dave Airlie <airlied@redhat.com>,
+ * Michael Thayer <michael.thayer@oracle.com,
+ * Hans de Goede <hdegoede@redhat.com>
+ */
+
+#include <linux/vbox_err.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_crtc_helper.h>
+
+#include "vbox_drv.h"
+#include "vboxvideo_guest.h"
+#include "vboxvideo_vbe.h"
+
+static void vbox_user_framebuffer_destroy(struct drm_framebuffer *fb)
+{
+ struct vbox_framebuffer *vbox_fb = to_vbox_framebuffer(fb);
+
+ if (vbox_fb->obj)
+ drm_gem_object_put_unlocked(vbox_fb->obj);
+
+ drm_framebuffer_cleanup(fb);
+ kfree(fb);
+}
+
+void vbox_report_caps(struct vbox_private *vbox)
+{
+ u32 caps = VBVACAPS_DISABLE_CURSOR_INTEGRATION |
+ VBVACAPS_IRQ | VBVACAPS_USE_VBVA_ONLY;
+
+ /* The host only accepts VIDEO_MODE_HINTS if it is send separately. */
+ hgsmi_send_caps_info(vbox->guest_pool, caps);
+ caps |= VBVACAPS_VIDEO_MODE_HINTS;
+ hgsmi_send_caps_info(vbox->guest_pool, caps);
+}
+
+/* Send information about dirty rectangles to VBVA. */
+void vbox_framebuffer_dirty_rectangles(struct drm_framebuffer *fb,
+ struct drm_clip_rect *rects,
+ unsigned int num_rects)
+{
+ struct vbox_private *vbox = fb->dev->dev_private;
+ struct drm_display_mode *mode;
+ struct drm_crtc *crtc;
+ int crtc_x, crtc_y;
+ unsigned int i;
+
+ mutex_lock(&vbox->hw_mutex);
+ list_for_each_entry(crtc, &fb->dev->mode_config.crtc_list, head) {
+ if (crtc->primary->state->fb != fb)
+ continue;
+
+ mode = &crtc->state->mode;
+ crtc_x = crtc->primary->state->src_x >> 16;
+ crtc_y = crtc->primary->state->src_y >> 16;
+
+ for (i = 0; i < num_rects; ++i) {
+ struct vbva_cmd_hdr cmd_hdr;
+ unsigned int crtc_id = to_vbox_crtc(crtc)->crtc_id;
+
+ if (rects[i].x1 > crtc_x + mode->hdisplay ||
+ rects[i].y1 > crtc_y + mode->vdisplay ||
+ rects[i].x2 < crtc_x ||
+ rects[i].y2 < crtc_y)
+ continue;
+
+ cmd_hdr.x = (s16)rects[i].x1;
+ cmd_hdr.y = (s16)rects[i].y1;
+ cmd_hdr.w = (u16)rects[i].x2 - rects[i].x1;
+ cmd_hdr.h = (u16)rects[i].y2 - rects[i].y1;
+
+ if (!vbva_buffer_begin_update(&vbox->vbva_info[crtc_id],
+ vbox->guest_pool))
+ continue;
+
+ vbva_write(&vbox->vbva_info[crtc_id], vbox->guest_pool,
+ &cmd_hdr, sizeof(cmd_hdr));
+ vbva_buffer_end_update(&vbox->vbva_info[crtc_id]);
+ }
+ }
+ mutex_unlock(&vbox->hw_mutex);
+}
+
+static int vbox_user_framebuffer_dirty(struct drm_framebuffer *fb,
+ struct drm_file *file_priv,
+ unsigned int flags, unsigned int color,
+ struct drm_clip_rect *rects,
+ unsigned int num_rects)
+{
+ vbox_framebuffer_dirty_rectangles(fb, rects, num_rects);
+
+ return 0;
+}
+
+static const struct drm_framebuffer_funcs vbox_fb_funcs = {
+ .destroy = vbox_user_framebuffer_destroy,
+ .dirty = vbox_user_framebuffer_dirty,
+};
+
+int vbox_framebuffer_init(struct vbox_private *vbox,
+ struct vbox_framebuffer *vbox_fb,
+ const struct drm_mode_fb_cmd2 *mode_cmd,
+ struct drm_gem_object *obj)
+{
+ int ret;
+
+ drm_helper_mode_fill_fb_struct(&vbox->ddev, &vbox_fb->base, mode_cmd);
+ vbox_fb->obj = obj;
+ ret = drm_framebuffer_init(&vbox->ddev, &vbox_fb->base, &vbox_fb_funcs);
+ if (ret) {
+ DRM_ERROR("framebuffer init failed %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int vbox_accel_init(struct vbox_private *vbox)
+{
+ struct vbva_buffer *vbva;
+ unsigned int i;
+
+ vbox->vbva_info = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
+ sizeof(*vbox->vbva_info), GFP_KERNEL);
+ if (!vbox->vbva_info)
+ return -ENOMEM;
+
+ /* Take a command buffer for each screen from the end of usable VRAM. */
+ vbox->available_vram_size -= vbox->num_crtcs * VBVA_MIN_BUFFER_SIZE;
+
+ vbox->vbva_buffers = pci_iomap_range(vbox->ddev.pdev, 0,
+ vbox->available_vram_size,
+ vbox->num_crtcs *
+ VBVA_MIN_BUFFER_SIZE);
+ if (!vbox->vbva_buffers)
+ return -ENOMEM;
+
+ for (i = 0; i < vbox->num_crtcs; ++i) {
+ vbva_setup_buffer_context(&vbox->vbva_info[i],
+ vbox->available_vram_size +
+ i * VBVA_MIN_BUFFER_SIZE,
+ VBVA_MIN_BUFFER_SIZE);
+ vbva = (void __force *)vbox->vbva_buffers +
+ i * VBVA_MIN_BUFFER_SIZE;
+ if (!vbva_enable(&vbox->vbva_info[i],
+ vbox->guest_pool, vbva, i)) {
+ /* very old host or driver error. */
+ DRM_ERROR("vboxvideo: vbva_enable failed\n");
+ }
+ }
+
+ return 0;
+}
+
+static void vbox_accel_fini(struct vbox_private *vbox)
+{
+ unsigned int i;
+
+ for (i = 0; i < vbox->num_crtcs; ++i)
+ vbva_disable(&vbox->vbva_info[i], vbox->guest_pool, i);
+
+ pci_iounmap(vbox->ddev.pdev, vbox->vbva_buffers);
+}
+
+/* Do we support the 4.3 plus mode hint reporting interface? */
+static bool have_hgsmi_mode_hints(struct vbox_private *vbox)
+{
+ u32 have_hints, have_cursor;
+ int ret;
+
+ ret = hgsmi_query_conf(vbox->guest_pool,
+ VBOX_VBVA_CONF32_MODE_HINT_REPORTING,
+ &have_hints);
+ if (ret)
+ return false;
+
+ ret = hgsmi_query_conf(vbox->guest_pool,
+ VBOX_VBVA_CONF32_GUEST_CURSOR_REPORTING,
+ &have_cursor);
+ if (ret)
+ return false;
+
+ return have_hints == VINF_SUCCESS && have_cursor == VINF_SUCCESS;
+}
+
+bool vbox_check_supported(u16 id)
+{
+ u16 dispi_id;
+
+ vbox_write_ioport(VBE_DISPI_INDEX_ID, id);
+ dispi_id = inw(VBE_DISPI_IOPORT_DATA);
+
+ return dispi_id == id;
+}
+
+int vbox_hw_init(struct vbox_private *vbox)
+{
+ int ret = -ENOMEM;
+
+ vbox->full_vram_size = inl(VBE_DISPI_IOPORT_DATA);
+ vbox->any_pitch = vbox_check_supported(VBE_DISPI_ID_ANYX);
+
+ DRM_INFO("VRAM %08x\n", vbox->full_vram_size);
+
+ /* Map guest-heap at end of vram */
+ vbox->guest_heap =
+ pci_iomap_range(vbox->ddev.pdev, 0, GUEST_HEAP_OFFSET(vbox),
+ GUEST_HEAP_SIZE);
+ if (!vbox->guest_heap)
+ return -ENOMEM;
+
+ /* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
+ vbox->guest_pool = gen_pool_create(4, -1);
+ if (!vbox->guest_pool)
+ goto err_unmap_guest_heap;
+
+ ret = gen_pool_add_virt(vbox->guest_pool,
+ (unsigned long)vbox->guest_heap,
+ GUEST_HEAP_OFFSET(vbox),
+ GUEST_HEAP_USABLE_SIZE, -1);
+ if (ret)
+ goto err_destroy_guest_pool;
+
+ ret = hgsmi_test_query_conf(vbox->guest_pool);
+ if (ret) {
+ DRM_ERROR("vboxvideo: hgsmi_test_query_conf failed\n");
+ goto err_destroy_guest_pool;
+ }
+
+ /* Reduce available VRAM size to reflect the guest heap. */
+ vbox->available_vram_size = GUEST_HEAP_OFFSET(vbox);
+ /* Linux drm represents monitors as a 32-bit array. */
+ hgsmi_query_conf(vbox->guest_pool, VBOX_VBVA_CONF32_MONITOR_COUNT,
+ &vbox->num_crtcs);
+ vbox->num_crtcs = clamp_t(u32, vbox->num_crtcs, 1, VBOX_MAX_SCREENS);
+
+ if (!have_hgsmi_mode_hints(vbox)) {
+ ret = -ENOTSUPP;
+ goto err_destroy_guest_pool;
+ }
+
+ vbox->last_mode_hints = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
+ sizeof(struct vbva_modehint),
+ GFP_KERNEL);
+ if (!vbox->last_mode_hints) {
+ ret = -ENOMEM;
+ goto err_destroy_guest_pool;
+ }
+
+ ret = vbox_accel_init(vbox);
+ if (ret)
+ goto err_destroy_guest_pool;
+
+ return 0;
+
+err_destroy_guest_pool:
+ gen_pool_destroy(vbox->guest_pool);
+err_unmap_guest_heap:
+ pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
+ return ret;
+}
+
+void vbox_hw_fini(struct vbox_private *vbox)
+{
+ vbox_accel_fini(vbox);
+ gen_pool_destroy(vbox->guest_pool);
+ pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
+}
+
+int vbox_gem_create(struct vbox_private *vbox,
+ u32 size, bool iskernel, struct drm_gem_object **obj)
+{
+ struct vbox_bo *vboxbo;
+ int ret;
+
+ *obj = NULL;
+
+ size = roundup(size, PAGE_SIZE);
+ if (size == 0)
+ return -EINVAL;
+
+ ret = vbox_bo_create(vbox, size, 0, 0, &vboxbo);
+ if (ret) {
+ if (ret != -ERESTARTSYS)
+ DRM_ERROR("failed to allocate GEM object\n");
+ return ret;
+ }
+
+ *obj = &vboxbo->gem;
+
+ return 0;
+}
+
+int vbox_dumb_create(struct drm_file *file,
+ struct drm_device *dev, struct drm_mode_create_dumb *args)
+{
+ struct vbox_private *vbox =
+ container_of(dev, struct vbox_private, ddev);
+ struct drm_gem_object *gobj;
+ u32 handle;
+ int ret;
+
+ args->pitch = args->width * ((args->bpp + 7) / 8);
+ args->size = args->pitch * args->height;
+
+ ret = vbox_gem_create(vbox, args->size, false, &gobj);
+ if (ret)
+ return ret;
+
+ ret = drm_gem_handle_create(file, gobj, &handle);
+ drm_gem_object_put_unlocked(gobj);
+ if (ret)
+ return ret;
+
+ args->handle = handle;
+
+ return 0;
+}
+
+void vbox_gem_free_object(struct drm_gem_object *obj)
+{
+ struct vbox_bo *vbox_bo = gem_to_vbox_bo(obj);
+
+ ttm_bo_put(&vbox_bo->bo);
+}
+
+static inline u64 vbox_bo_mmap_offset(struct vbox_bo *bo)
+{
+ return drm_vma_node_offset_addr(&bo->bo.vma_node);
+}
+
+int
+vbox_dumb_mmap_offset(struct drm_file *file,
+ struct drm_device *dev,
+ u32 handle, u64 *offset)
+{
+ struct drm_gem_object *obj;
+ int ret;
+ struct vbox_bo *bo;
+
+ mutex_lock(&dev->struct_mutex);
+ obj = drm_gem_object_lookup(file, handle);
+ if (!obj) {
+ ret = -ENOENT;
+ goto out_unlock;
+ }
+
+ bo = gem_to_vbox_bo(obj);
+ *offset = vbox_bo_mmap_offset(bo);
+
+ drm_gem_object_put(obj);
+ ret = 0;
+
+out_unlock:
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+}
--- /dev/null
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright (C) 2013-2017 Oracle Corporation
+ * This file is based on ast_mode.c
+ * Copyright 2012 Red Hat Inc.
+ * Parts based on xf86-video-ast
+ * Copyright (c) 2005 ASPEED Technology Inc.
+ * Authors: Dave Airlie <airlied@redhat.com>
+ * Michael Thayer <michael.thayer@oracle.com,
+ * Hans de Goede <hdegoede@redhat.com>
+ */
+#include <linux/export.h>
+
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_plane_helper.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/drm_vblank.h>
+
+#include "hgsmi_channels.h"
+#include "vbox_drv.h"
+#include "vboxvideo.h"
+
+/*
+ * Set a graphics mode. Poke any required values into registers, do an HGSMI
+ * mode set and tell the host we support advanced graphics functions.
+ */
+static void vbox_do_modeset(struct drm_crtc *crtc)
+{
+ struct drm_framebuffer *fb = crtc->primary->state->fb;
+ struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
+ struct vbox_private *vbox;
+ int width, height, bpp, pitch;
+ u16 flags;
+ s32 x_offset, y_offset;
+
+ vbox = crtc->dev->dev_private;
+ width = vbox_crtc->width ? vbox_crtc->width : 640;
+ height = vbox_crtc->height ? vbox_crtc->height : 480;
+ bpp = fb ? fb->format->cpp[0] * 8 : 32;
+ pitch = fb ? fb->pitches[0] : width * bpp / 8;
+ x_offset = vbox->single_framebuffer ? vbox_crtc->x : vbox_crtc->x_hint;
+ y_offset = vbox->single_framebuffer ? vbox_crtc->y : vbox_crtc->y_hint;
+
+ /*
+ * This is the old way of setting graphics modes. It assumed one screen
+ * and a frame-buffer at the start of video RAM. On older versions of
+ * VirtualBox, certain parts of the code still assume that the first
+ * screen is programmed this way, so try to fake it.
+ */
+ if (vbox_crtc->crtc_id == 0 && fb &&
+ vbox_crtc->fb_offset / pitch < 0xffff - crtc->y &&
+ vbox_crtc->fb_offset % (bpp / 8) == 0) {
+ vbox_write_ioport(VBE_DISPI_INDEX_XRES, width);
+ vbox_write_ioport(VBE_DISPI_INDEX_YRES, height);
+ vbox_write_ioport(VBE_DISPI_INDEX_VIRT_WIDTH, pitch * 8 / bpp);
+ vbox_write_ioport(VBE_DISPI_INDEX_BPP, bpp);
+ vbox_write_ioport(VBE_DISPI_INDEX_ENABLE, VBE_DISPI_ENABLED);
+ vbox_write_ioport(
+ VBE_DISPI_INDEX_X_OFFSET,
+ vbox_crtc->fb_offset % pitch / bpp * 8 + vbox_crtc->x);
+ vbox_write_ioport(VBE_DISPI_INDEX_Y_OFFSET,
+ vbox_crtc->fb_offset / pitch + vbox_crtc->y);
+ }
+
+ flags = VBVA_SCREEN_F_ACTIVE;
+ flags |= (fb && crtc->state->enable) ? 0 : VBVA_SCREEN_F_BLANK;
+ flags |= vbox_crtc->disconnected ? VBVA_SCREEN_F_DISABLED : 0;
+ hgsmi_process_display_info(vbox->guest_pool, vbox_crtc->crtc_id,
+ x_offset, y_offset,
+ vbox_crtc->x * bpp / 8 +
+ vbox_crtc->y * pitch,
+ pitch, width, height, bpp, flags);
+}
+
+static int vbox_set_view(struct drm_crtc *crtc)
+{
+ struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
+ struct vbox_private *vbox = crtc->dev->dev_private;
+ struct vbva_infoview *p;
+
+ /*
+ * Tell the host about the view. This design originally targeted the
+ * Windows XP driver architecture and assumed that each screen would
+ * have a dedicated frame buffer with the command buffer following it,
+ * the whole being a "view". The host works out which screen a command
+ * buffer belongs to by checking whether it is in the first view, then
+ * whether it is in the second and so on. The first match wins. We
+ * cheat around this by making the first view be the managed memory
+ * plus the first command buffer, the second the same plus the second
+ * buffer and so on.
+ */
+ p = hgsmi_buffer_alloc(vbox->guest_pool, sizeof(*p),
+ HGSMI_CH_VBVA, VBVA_INFO_VIEW);
+ if (!p)
+ return -ENOMEM;
+
+ p->view_index = vbox_crtc->crtc_id;
+ p->view_offset = vbox_crtc->fb_offset;
+ p->view_size = vbox->available_vram_size - vbox_crtc->fb_offset +
+ vbox_crtc->crtc_id * VBVA_MIN_BUFFER_SIZE;
+ p->max_screen_size = vbox->available_vram_size - vbox_crtc->fb_offset;
+
+ hgsmi_buffer_submit(vbox->guest_pool, p);
+ hgsmi_buffer_free(vbox->guest_pool, p);
+
+ return 0;
+}
+
+/*
+ * Try to map the layout of virtual screens to the range of the input device.
+ * Return true if we need to re-set the crtc modes due to screen offset
+ * changes.
+ */
+static bool vbox_set_up_input_mapping(struct vbox_private *vbox)
+{
+ struct drm_crtc *crtci;
+ struct drm_connector *connectori;
+ struct drm_framebuffer *fb, *fb1 = NULL;
+ bool single_framebuffer = true;
+ bool old_single_framebuffer = vbox->single_framebuffer;
+ u16 width = 0, height = 0;
+
+ /*
+ * Are we using an X.Org-style single large frame-buffer for all crtcs?
+ * If so then screen layout can be deduced from the crtc offsets.
+ * Same fall-back if this is the fbdev frame-buffer.
+ */
+ list_for_each_entry(crtci, &vbox->ddev.mode_config.crtc_list, head) {
+ fb = crtci->primary->state->fb;
+ if (!fb)
+ continue;
+
+ if (!fb1) {
+ fb1 = fb;
+ if (to_vbox_framebuffer(fb1) == &vbox->afb)
+ break;
+ } else if (fb != fb1) {
+ single_framebuffer = false;
+ }
+ }
+ if (!fb1)
+ return false;
+
+ if (single_framebuffer) {
+ vbox->single_framebuffer = true;
+ vbox->input_mapping_width = fb1->width;
+ vbox->input_mapping_height = fb1->height;
+ return old_single_framebuffer != vbox->single_framebuffer;
+ }
+ /* Otherwise calculate the total span of all screens. */
+ list_for_each_entry(connectori, &vbox->ddev.mode_config.connector_list,
+ head) {
+ struct vbox_connector *vbox_connector =
+ to_vbox_connector(connectori);
+ struct vbox_crtc *vbox_crtc = vbox_connector->vbox_crtc;
+
+ width = max_t(u16, width, vbox_crtc->x_hint +
+ vbox_connector->mode_hint.width);
+ height = max_t(u16, height, vbox_crtc->y_hint +
+ vbox_connector->mode_hint.height);
+ }
+
+ vbox->single_framebuffer = false;
+ vbox->input_mapping_width = width;
+ vbox->input_mapping_height = height;
+
+ return old_single_framebuffer != vbox->single_framebuffer;
+}
+
+static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ int x, int y)
+{
+ struct vbox_bo *bo = gem_to_vbox_bo(to_vbox_framebuffer(fb)->obj);
+ struct vbox_private *vbox = crtc->dev->dev_private;
+ struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
+ bool needs_modeset = drm_atomic_crtc_needs_modeset(crtc->state);
+
+ mutex_lock(&vbox->hw_mutex);
+
+ if (crtc->state->enable) {
+ vbox_crtc->width = crtc->state->mode.hdisplay;
+ vbox_crtc->height = crtc->state->mode.vdisplay;
+ }
+
+ vbox_crtc->x = x;
+ vbox_crtc->y = y;
+ vbox_crtc->fb_offset = vbox_bo_gpu_offset(bo);
+
+ /* vbox_do_modeset() checks vbox->single_framebuffer so update it now */
+ if (needs_modeset && vbox_set_up_input_mapping(vbox)) {
+ struct drm_crtc *crtci;
+
+ list_for_each_entry(crtci, &vbox->ddev.mode_config.crtc_list,
+ head) {
+ if (crtci == crtc)
+ continue;
+ vbox_do_modeset(crtci);
+ }
+ }
+
+ vbox_set_view(crtc);
+ vbox_do_modeset(crtc);
+
+ if (needs_modeset)
+ hgsmi_update_input_mapping(vbox->guest_pool, 0, 0,
+ vbox->input_mapping_width,
+ vbox->input_mapping_height);
+
+ mutex_unlock(&vbox->hw_mutex);
+}
+
+static void vbox_crtc_atomic_enable(struct drm_crtc *crtc,
+ struct drm_crtc_state *old_crtc_state)
+{
+}
+
+static void vbox_crtc_atomic_disable(struct drm_crtc *crtc,
+ struct drm_crtc_state *old_crtc_state)
+{
+}
+
+static void vbox_crtc_atomic_flush(struct drm_crtc *crtc,
+ struct drm_crtc_state *old_crtc_state)
+{
+ struct drm_pending_vblank_event *event;
+ unsigned long flags;
+
+ if (crtc->state && crtc->state->event) {
+ event = crtc->state->event;
+ crtc->state->event = NULL;
+
+ spin_lock_irqsave(&crtc->dev->event_lock, flags);
+ drm_crtc_send_vblank_event(crtc, event);
+ spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
+ }
+}
+
+static const struct drm_crtc_helper_funcs vbox_crtc_helper_funcs = {
+ .atomic_enable = vbox_crtc_atomic_enable,
+ .atomic_disable = vbox_crtc_atomic_disable,
+ .atomic_flush = vbox_crtc_atomic_flush,
+};
+
+static void vbox_crtc_destroy(struct drm_crtc *crtc)
+{
+ drm_crtc_cleanup(crtc);
+ kfree(crtc);
+}
+
+static const struct drm_crtc_funcs vbox_crtc_funcs = {
+ .set_config = drm_atomic_helper_set_config,
+ .page_flip = drm_atomic_helper_page_flip,
+ /* .gamma_set = vbox_crtc_gamma_set, */
+ .destroy = vbox_crtc_destroy,
+ .reset = drm_atomic_helper_crtc_reset,
+ .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
+};
+
+static int vbox_primary_atomic_check(struct drm_plane *plane,
+ struct drm_plane_state *new_state)
+{
+ struct drm_crtc_state *crtc_state = NULL;
+
+ if (new_state->crtc) {
+ crtc_state = drm_atomic_get_existing_crtc_state(
+ new_state->state, new_state->crtc);
+ if (WARN_ON(!crtc_state))
+ return -EINVAL;
+ }
+
+ return drm_atomic_helper_check_plane_state(new_state, crtc_state,
+ DRM_PLANE_HELPER_NO_SCALING,
+ DRM_PLANE_HELPER_NO_SCALING,
+ false, true);
+}
+
+static void vbox_primary_atomic_update(struct drm_plane *plane,
+ struct drm_plane_state *old_state)
+{
+ struct drm_crtc *crtc = plane->state->crtc;
+ struct drm_framebuffer *fb = plane->state->fb;
+
+ vbox_crtc_set_base_and_mode(crtc, fb,
+ plane->state->src_x >> 16,
+ plane->state->src_y >> 16);
+}
+
+static void vbox_primary_atomic_disable(struct drm_plane *plane,
+ struct drm_plane_state *old_state)
+{
+ struct drm_crtc *crtc = old_state->crtc;
+
+ /* vbox_do_modeset checks plane->state->fb and will disable if NULL */
+ vbox_crtc_set_base_and_mode(crtc, old_state->fb,
+ old_state->src_x >> 16,
+ old_state->src_y >> 16);
+}
+
+static int vbox_primary_prepare_fb(struct drm_plane *plane,
+ struct drm_plane_state *new_state)
+{
+ struct vbox_bo *bo;
+ int ret;
+
+ if (!new_state->fb)
+ return 0;
+
+ bo = gem_to_vbox_bo(to_vbox_framebuffer(new_state->fb)->obj);
+ ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM);
+ if (ret)
+ DRM_WARN("Error %d pinning new fb, out of video mem?\n", ret);
+
+ return ret;
+}
+
+static void vbox_primary_cleanup_fb(struct drm_plane *plane,
+ struct drm_plane_state *old_state)
+{
+ struct vbox_bo *bo;
+
+ if (!old_state->fb)
+ return;
+
+ bo = gem_to_vbox_bo(to_vbox_framebuffer(old_state->fb)->obj);
+ vbox_bo_unpin(bo);
+}
+
+static int vbox_cursor_atomic_check(struct drm_plane *plane,
+ struct drm_plane_state *new_state)
+{
+ struct drm_crtc_state *crtc_state = NULL;
+ u32 width = new_state->crtc_w;
+ u32 height = new_state->crtc_h;
+ int ret;
+
+ if (new_state->crtc) {
+ crtc_state = drm_atomic_get_existing_crtc_state(
+ new_state->state, new_state->crtc);
+ if (WARN_ON(!crtc_state))
+ return -EINVAL;
+ }
+
+ ret = drm_atomic_helper_check_plane_state(new_state, crtc_state,
+ DRM_PLANE_HELPER_NO_SCALING,
+ DRM_PLANE_HELPER_NO_SCALING,
+ true, true);
+ if (ret)
+ return ret;
+
+ if (!new_state->fb)
+ return 0;
+
+ if (width > VBOX_MAX_CURSOR_WIDTH || height > VBOX_MAX_CURSOR_HEIGHT ||
+ width == 0 || height == 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+/*
+ * Copy the ARGB image and generate the mask, which is needed in case the host
+ * does not support ARGB cursors. The mask is a 1BPP bitmap with the bit set
+ * if the corresponding alpha value in the ARGB image is greater than 0xF0.
+ */
+static void copy_cursor_image(u8 *src, u8 *dst, u32 width, u32 height,
+ size_t mask_size)
+{
+ size_t line_size = (width + 7) / 8;
+ u32 i, j;
+
+ memcpy(dst + mask_size, src, width * height * 4);
+ for (i = 0; i < height; ++i)
+ for (j = 0; j < width; ++j)
+ if (((u32 *)src)[i * width + j] > 0xf0000000)
+ dst[i * line_size + j / 8] |= (0x80 >> (j % 8));
+}
+
+static void vbox_cursor_atomic_update(struct drm_plane *plane,
+ struct drm_plane_state *old_state)
+{
+ struct vbox_private *vbox =
+ container_of(plane->dev, struct vbox_private, ddev);
+ struct vbox_crtc *vbox_crtc = to_vbox_crtc(plane->state->crtc);
+ struct drm_framebuffer *fb = plane->state->fb;
+ struct vbox_bo *bo = gem_to_vbox_bo(to_vbox_framebuffer(fb)->obj);
+ u32 width = plane->state->crtc_w;
+ u32 height = plane->state->crtc_h;
+ size_t data_size, mask_size;
+ u32 flags;
+ u8 *src;
+
+ /*
+ * VirtualBox uses the host windowing system to draw the cursor so
+ * moves are a no-op, we only need to upload new cursor sprites.
+ */
+ if (fb == old_state->fb)
+ return;
+
+ mutex_lock(&vbox->hw_mutex);
+
+ vbox_crtc->cursor_enabled = true;
+
+ /* pinning is done in prepare/cleanup framebuffer */
+ src = vbox_bo_kmap(bo);
+ if (IS_ERR(src)) {
+ mutex_unlock(&vbox->hw_mutex);
+ DRM_WARN("Could not kmap cursor bo, skipping update\n");
+ return;
+ }
+
+ /*
+ * The mask must be calculated based on the alpha
+ * channel, one bit per ARGB word, and must be 32-bit
+ * padded.
+ */
+ mask_size = ((width + 7) / 8 * height + 3) & ~3;
+ data_size = width * height * 4 + mask_size;
+
+ copy_cursor_image(src, vbox->cursor_data, width, height, mask_size);
+ vbox_bo_kunmap(bo);
+
+ flags = VBOX_MOUSE_POINTER_VISIBLE | VBOX_MOUSE_POINTER_SHAPE |
+ VBOX_MOUSE_POINTER_ALPHA;
+ hgsmi_update_pointer_shape(vbox->guest_pool, flags,
+ min_t(u32, max(fb->hot_x, 0), width),
+ min_t(u32, max(fb->hot_y, 0), height),
+ width, height, vbox->cursor_data, data_size);
+
+ mutex_unlock(&vbox->hw_mutex);
+}
+
+static void vbox_cursor_atomic_disable(struct drm_plane *plane,
+ struct drm_plane_state *old_state)
+{
+ struct vbox_private *vbox =
+ container_of(plane->dev, struct vbox_private, ddev);
+ struct vbox_crtc *vbox_crtc = to_vbox_crtc(old_state->crtc);
+ bool cursor_enabled = false;
+ struct drm_crtc *crtci;
+
+ mutex_lock(&vbox->hw_mutex);
+
+ vbox_crtc->cursor_enabled = false;
+
+ list_for_each_entry(crtci, &vbox->ddev.mode_config.crtc_list, head) {
+ if (to_vbox_crtc(crtci)->cursor_enabled)
+ cursor_enabled = true;
+ }
+
+ if (!cursor_enabled)
+ hgsmi_update_pointer_shape(vbox->guest_pool, 0, 0, 0,
+ 0, 0, NULL, 0);
+
+ mutex_unlock(&vbox->hw_mutex);
+}
+
+static int vbox_cursor_prepare_fb(struct drm_plane *plane,
+ struct drm_plane_state *new_state)
+{
+ struct vbox_bo *bo;
+
+ if (!new_state->fb)
+ return 0;
+
+ bo = gem_to_vbox_bo(to_vbox_framebuffer(new_state->fb)->obj);
+ return vbox_bo_pin(bo, TTM_PL_FLAG_SYSTEM);
+}
+
+static void vbox_cursor_cleanup_fb(struct drm_plane *plane,
+ struct drm_plane_state *old_state)
+{
+ struct vbox_bo *bo;
+
+ if (!plane->state->fb)
+ return;
+
+ bo = gem_to_vbox_bo(to_vbox_framebuffer(plane->state->fb)->obj);
+ vbox_bo_unpin(bo);
+}
+
+static const u32 vbox_cursor_plane_formats[] = {
+ DRM_FORMAT_ARGB8888,
+};
+
+static const struct drm_plane_helper_funcs vbox_cursor_helper_funcs = {
+ .atomic_check = vbox_cursor_atomic_check,
+ .atomic_update = vbox_cursor_atomic_update,
+ .atomic_disable = vbox_cursor_atomic_disable,
+ .prepare_fb = vbox_cursor_prepare_fb,
+ .cleanup_fb = vbox_cursor_cleanup_fb,
+};
+
+static const struct drm_plane_funcs vbox_cursor_plane_funcs = {
+ .update_plane = drm_atomic_helper_update_plane,
+ .disable_plane = drm_atomic_helper_disable_plane,
+ .destroy = drm_primary_helper_destroy,
+ .reset = drm_atomic_helper_plane_reset,
+ .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
+};
+
+static const u32 vbox_primary_plane_formats[] = {
+ DRM_FORMAT_XRGB8888,
+ DRM_FORMAT_ARGB8888,
+};
+
+static const struct drm_plane_helper_funcs vbox_primary_helper_funcs = {
+ .atomic_check = vbox_primary_atomic_check,
+ .atomic_update = vbox_primary_atomic_update,
+ .atomic_disable = vbox_primary_atomic_disable,
+ .prepare_fb = vbox_primary_prepare_fb,
+ .cleanup_fb = vbox_primary_cleanup_fb,
+};
+
+static const struct drm_plane_funcs vbox_primary_plane_funcs = {
+ .update_plane = drm_atomic_helper_update_plane,
+ .disable_plane = drm_atomic_helper_disable_plane,
+ .destroy = drm_primary_helper_destroy,
+ .reset = drm_atomic_helper_plane_reset,
+ .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
+};
+
+static struct drm_plane *vbox_create_plane(struct vbox_private *vbox,
+ unsigned int possible_crtcs,
+ enum drm_plane_type type)
+{
+ const struct drm_plane_helper_funcs *helper_funcs = NULL;
+ const struct drm_plane_funcs *funcs;
+ struct drm_plane *plane;
+ const u32 *formats;
+ int num_formats;
+ int err;
+
+ if (type == DRM_PLANE_TYPE_PRIMARY) {
+ funcs = &vbox_primary_plane_funcs;
+ formats = vbox_primary_plane_formats;
+ helper_funcs = &vbox_primary_helper_funcs;
+ num_formats = ARRAY_SIZE(vbox_primary_plane_formats);
+ } else if (type == DRM_PLANE_TYPE_CURSOR) {
+ funcs = &vbox_cursor_plane_funcs;
+ formats = vbox_cursor_plane_formats;
+ helper_funcs = &vbox_cursor_helper_funcs;
+ num_formats = ARRAY_SIZE(vbox_cursor_plane_formats);
+ } else {
+ return ERR_PTR(-EINVAL);
+ }
+
+ plane = kzalloc(sizeof(*plane), GFP_KERNEL);
+ if (!plane)
+ return ERR_PTR(-ENOMEM);
+
+ err = drm_universal_plane_init(&vbox->ddev, plane, possible_crtcs,
+ funcs, formats, num_formats,
+ NULL, type, NULL);
+ if (err)
+ goto free_plane;
+
+ drm_plane_helper_add(plane, helper_funcs);
+
+ return plane;
+
+free_plane:
+ kfree(plane);
+ return ERR_PTR(-EINVAL);
+}
+
+static struct vbox_crtc *vbox_crtc_init(struct drm_device *dev, unsigned int i)
+{
+ struct vbox_private *vbox =
+ container_of(dev, struct vbox_private, ddev);
+ struct drm_plane *cursor = NULL;
+ struct vbox_crtc *vbox_crtc;
+ struct drm_plane *primary;
+ u32 caps = 0;
+ int ret;
+
+ ret = hgsmi_query_conf(vbox->guest_pool,
+ VBOX_VBVA_CONF32_CURSOR_CAPABILITIES, &caps);
+ if (ret)
+ return ERR_PTR(ret);
+
+ vbox_crtc = kzalloc(sizeof(*vbox_crtc), GFP_KERNEL);
+ if (!vbox_crtc)
+ return ERR_PTR(-ENOMEM);
+
+ primary = vbox_create_plane(vbox, 1 << i, DRM_PLANE_TYPE_PRIMARY);
+ if (IS_ERR(primary)) {
+ ret = PTR_ERR(primary);
+ goto free_mem;
+ }
+
+ if ((caps & VBOX_VBVA_CURSOR_CAPABILITY_HARDWARE)) {
+ cursor = vbox_create_plane(vbox, 1 << i, DRM_PLANE_TYPE_CURSOR);
+ if (IS_ERR(cursor)) {
+ ret = PTR_ERR(cursor);
+ goto clean_primary;
+ }
+ } else {
+ DRM_WARN("VirtualBox host is too old, no cursor support\n");
+ }
+
+ vbox_crtc->crtc_id = i;
+
+ ret = drm_crtc_init_with_planes(dev, &vbox_crtc->base, primary, cursor,
+ &vbox_crtc_funcs, NULL);
+ if (ret)
+ goto clean_cursor;
+
+ drm_mode_crtc_set_gamma_size(&vbox_crtc->base, 256);
+ drm_crtc_helper_add(&vbox_crtc->base, &vbox_crtc_helper_funcs);
+
+ return vbox_crtc;
+
+clean_cursor:
+ if (cursor) {
+ drm_plane_cleanup(cursor);
+ kfree(cursor);
+ }
+clean_primary:
+ drm_plane_cleanup(primary);
+ kfree(primary);
+free_mem:
+ kfree(vbox_crtc);
+ return ERR_PTR(ret);
+}
+
+static void vbox_encoder_destroy(struct drm_encoder *encoder)
+{
+ drm_encoder_cleanup(encoder);
+ kfree(encoder);
+}
+
+static const struct drm_encoder_funcs vbox_enc_funcs = {
+ .destroy = vbox_encoder_destroy,
+};
+
+static struct drm_encoder *vbox_encoder_init(struct drm_device *dev,
+ unsigned int i)
+{
+ struct vbox_encoder *vbox_encoder;
+
+ vbox_encoder = kzalloc(sizeof(*vbox_encoder), GFP_KERNEL);
+ if (!vbox_encoder)
+ return NULL;
+
+ drm_encoder_init(dev, &vbox_encoder->base, &vbox_enc_funcs,
+ DRM_MODE_ENCODER_DAC, NULL);
+
+ vbox_encoder->base.possible_crtcs = 1 << i;
+ return &vbox_encoder->base;
+}
+
+/*
+ * Generate EDID data with a mode-unique serial number for the virtual
+ * monitor to try to persuade Unity that different modes correspond to
+ * different monitors and it should not try to force the same resolution on
+ * them.
+ */
+static void vbox_set_edid(struct drm_connector *connector, int width,
+ int height)
+{
+ enum { EDID_SIZE = 128 };
+ unsigned char edid[EDID_SIZE] = {
+ 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, /* header */
+ 0x58, 0x58, /* manufacturer (VBX) */
+ 0x00, 0x00, /* product code */
+ 0x00, 0x00, 0x00, 0x00, /* serial number goes here */
+ 0x01, /* week of manufacture */
+ 0x00, /* year of manufacture */
+ 0x01, 0x03, /* EDID version */
+ 0x80, /* capabilities - digital */
+ 0x00, /* horiz. res in cm, zero for projectors */
+ 0x00, /* vert. res in cm */
+ 0x78, /* display gamma (120 == 2.2). */
+ 0xEE, /* features (standby, suspend, off, RGB, std */
+ /* colour space, preferred timing mode) */
+ 0xEE, 0x91, 0xA3, 0x54, 0x4C, 0x99, 0x26, 0x0F, 0x50, 0x54,
+ /* chromaticity for standard colour space. */
+ 0x00, 0x00, 0x00, /* no default timings */
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, /* no standard timings */
+ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x06, 0x00, 0x02, 0x02,
+ 0x02, 0x02,
+ /* descriptor block 1 goes below */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* descriptor block 2, monitor ranges */
+ 0x00, 0x00, 0x00, 0xFD, 0x00,
+ 0x00, 0xC8, 0x00, 0xC8, 0x64, 0x00, 0x0A, 0x20, 0x20, 0x20,
+ 0x20, 0x20,
+ /* 0-200Hz vertical, 0-200KHz horizontal, 1000MHz pixel clock */
+ 0x20,
+ /* descriptor block 3, monitor name */
+ 0x00, 0x00, 0x00, 0xFC, 0x00,
+ 'V', 'B', 'O', 'X', ' ', 'm', 'o', 'n', 'i', 't', 'o', 'r',
+ '\n',
+ /* descriptor block 4: dummy data */
+ 0x00, 0x00, 0x00, 0x10, 0x00,
+ 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20,
+ 0x00, /* number of extensions */
+ 0x00 /* checksum goes here */
+ };
+ int clock = (width + 6) * (height + 6) * 60 / 10000;
+ unsigned int i, sum = 0;
+
+ edid[12] = width & 0xff;
+ edid[13] = width >> 8;
+ edid[14] = height & 0xff;
+ edid[15] = height >> 8;
+ edid[54] = clock & 0xff;
+ edid[55] = clock >> 8;
+ edid[56] = width & 0xff;
+ edid[58] = (width >> 4) & 0xf0;
+ edid[59] = height & 0xff;
+ edid[61] = (height >> 4) & 0xf0;
+ for (i = 0; i < EDID_SIZE - 1; ++i)
+ sum += edid[i];
+ edid[EDID_SIZE - 1] = (0x100 - (sum & 0xFF)) & 0xFF;
+ drm_connector_update_edid_property(connector, (struct edid *)edid);
+}
+
+static int vbox_get_modes(struct drm_connector *connector)
+{
+ struct vbox_connector *vbox_connector = NULL;
+ struct drm_display_mode *mode = NULL;
+ struct vbox_private *vbox = NULL;
+ unsigned int num_modes = 0;
+ int preferred_width, preferred_height;
+
+ vbox_connector = to_vbox_connector(connector);
+ vbox = connector->dev->dev_private;
+
+ hgsmi_report_flags_location(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) +
+ HOST_FLAGS_OFFSET);
+ if (vbox_connector->vbox_crtc->crtc_id == 0)
+ vbox_report_caps(vbox);
+
+ num_modes = drm_add_modes_noedid(connector, 2560, 1600);
+ preferred_width = vbox_connector->mode_hint.width ?
+ vbox_connector->mode_hint.width : 1024;
+ preferred_height = vbox_connector->mode_hint.height ?
+ vbox_connector->mode_hint.height : 768;
+ mode = drm_cvt_mode(connector->dev, preferred_width, preferred_height,
+ 60, false, false, false);
+ if (mode) {
+ mode->type |= DRM_MODE_TYPE_PREFERRED;
+ drm_mode_probed_add(connector, mode);
+ ++num_modes;
+ }
+ vbox_set_edid(connector, preferred_width, preferred_height);
+
+ if (vbox_connector->vbox_crtc->x_hint != -1)
+ drm_object_property_set_value(&connector->base,
+ vbox->ddev.mode_config.suggested_x_property,
+ vbox_connector->vbox_crtc->x_hint);
+ else
+ drm_object_property_set_value(&connector->base,
+ vbox->ddev.mode_config.suggested_x_property, 0);
+
+ if (vbox_connector->vbox_crtc->y_hint != -1)
+ drm_object_property_set_value(&connector->base,
+ vbox->ddev.mode_config.suggested_y_property,
+ vbox_connector->vbox_crtc->y_hint);
+ else
+ drm_object_property_set_value(&connector->base,
+ vbox->ddev.mode_config.suggested_y_property, 0);
+
+ return num_modes;
+}
+
+static void vbox_connector_destroy(struct drm_connector *connector)
+{
+ drm_connector_unregister(connector);
+ drm_connector_cleanup(connector);
+ kfree(connector);
+}
+
+static enum drm_connector_status
+vbox_connector_detect(struct drm_connector *connector, bool force)
+{
+ struct vbox_connector *vbox_connector;
+
+ vbox_connector = to_vbox_connector(connector);
+
+ return vbox_connector->mode_hint.disconnected ?
+ connector_status_disconnected : connector_status_connected;
+}
+
+static int vbox_fill_modes(struct drm_connector *connector, u32 max_x,
+ u32 max_y)
+{
+ struct vbox_connector *vbox_connector;
+ struct drm_device *dev;
+ struct drm_display_mode *mode, *iterator;
+
+ vbox_connector = to_vbox_connector(connector);
+ dev = vbox_connector->base.dev;
+ list_for_each_entry_safe(mode, iterator, &connector->modes, head) {
+ list_del(&mode->head);
+ drm_mode_destroy(dev, mode);
+ }
+
+ return drm_helper_probe_single_connector_modes(connector, max_x, max_y);
+}
+
+static const struct drm_connector_helper_funcs vbox_connector_helper_funcs = {
+ .get_modes = vbox_get_modes,
+};
+
+static const struct drm_connector_funcs vbox_connector_funcs = {
+ .detect = vbox_connector_detect,
+ .fill_modes = vbox_fill_modes,
+ .destroy = vbox_connector_destroy,
+ .reset = drm_atomic_helper_connector_reset,
+ .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
+};
+
+static int vbox_connector_init(struct drm_device *dev,
+ struct vbox_crtc *vbox_crtc,
+ struct drm_encoder *encoder)
+{
+ struct vbox_connector *vbox_connector;
+ struct drm_connector *connector;
+
+ vbox_connector = kzalloc(sizeof(*vbox_connector), GFP_KERNEL);
+ if (!vbox_connector)
+ return -ENOMEM;
+
+ connector = &vbox_connector->base;
+ vbox_connector->vbox_crtc = vbox_crtc;
+
+ drm_connector_init(dev, connector, &vbox_connector_funcs,
+ DRM_MODE_CONNECTOR_VGA);
+ drm_connector_helper_add(connector, &vbox_connector_helper_funcs);
+
+ connector->interlace_allowed = 0;
+ connector->doublescan_allowed = 0;
+
+ drm_mode_create_suggested_offset_properties(dev);
+ drm_object_attach_property(&connector->base,
+ dev->mode_config.suggested_x_property, 0);
+ drm_object_attach_property(&connector->base,
+ dev->mode_config.suggested_y_property, 0);
+
+ drm_connector_attach_encoder(connector, encoder);
+
+ return 0;
+}
+
+static struct drm_framebuffer *vbox_user_framebuffer_create(
+ struct drm_device *dev,
+ struct drm_file *filp,
+ const struct drm_mode_fb_cmd2 *mode_cmd)
+{
+ struct vbox_private *vbox =
+ container_of(dev, struct vbox_private, ddev);
+ struct drm_gem_object *obj;
+ struct vbox_framebuffer *vbox_fb;
+ int ret = -ENOMEM;
+
+ obj = drm_gem_object_lookup(filp, mode_cmd->handles[0]);
+ if (!obj)
+ return ERR_PTR(-ENOENT);
+
+ vbox_fb = kzalloc(sizeof(*vbox_fb), GFP_KERNEL);
+ if (!vbox_fb)
+ goto err_unref_obj;
+
+ ret = vbox_framebuffer_init(vbox, vbox_fb, mode_cmd, obj);
+ if (ret)
+ goto err_free_vbox_fb;
+
+ return &vbox_fb->base;
+
+err_free_vbox_fb:
+ kfree(vbox_fb);
+err_unref_obj:
+ drm_gem_object_put_unlocked(obj);
+ return ERR_PTR(ret);
+}
+
+static const struct drm_mode_config_funcs vbox_mode_funcs = {
+ .fb_create = vbox_user_framebuffer_create,
+ .atomic_check = drm_atomic_helper_check,
+ .atomic_commit = drm_atomic_helper_commit,
+};
+
+int vbox_mode_init(struct vbox_private *vbox)
+{
+ struct drm_device *dev = &vbox->ddev;
+ struct drm_encoder *encoder;
+ struct vbox_crtc *vbox_crtc;
+ unsigned int i;
+ int ret;
+
+ drm_mode_config_init(dev);
+
+ dev->mode_config.funcs = (void *)&vbox_mode_funcs;
+ dev->mode_config.min_width = 0;
+ dev->mode_config.min_height = 0;
+ dev->mode_config.preferred_depth = 24;
+ dev->mode_config.max_width = VBE_DISPI_MAX_XRES;
+ dev->mode_config.max_height = VBE_DISPI_MAX_YRES;
+
+ for (i = 0; i < vbox->num_crtcs; ++i) {
+ vbox_crtc = vbox_crtc_init(dev, i);
+ if (IS_ERR(vbox_crtc)) {
+ ret = PTR_ERR(vbox_crtc);
+ goto err_drm_mode_cleanup;
+ }
+ encoder = vbox_encoder_init(dev, i);
+ if (!encoder) {
+ ret = -ENOMEM;
+ goto err_drm_mode_cleanup;
+ }
+ ret = vbox_connector_init(dev, vbox_crtc, encoder);
+ if (ret)
+ goto err_drm_mode_cleanup;
+ }
+
+ drm_mode_config_reset(dev);
+ return 0;
+
+err_drm_mode_cleanup:
+ drm_mode_config_cleanup(dev);
+ return ret;
+}
+
+void vbox_mode_fini(struct vbox_private *vbox)
+{
+ drm_mode_config_cleanup(&vbox->ddev);
+}
--- /dev/null
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright (C) 2017 Oracle Corporation
+ * Copyright 2017 Canonical
+ * Authors: Andreas Pokorny
+ */
+
+#include "vbox_drv.h"
+
+/*
+ * Based on qxl_prime.c:
+ * Empty Implementations as there should not be any other driver for a virtual
+ * device that might share buffers with vboxvideo
+ */
+
+int vbox_gem_prime_pin(struct drm_gem_object *obj)
+{
+ WARN_ONCE(1, "not implemented");
+ return -ENOSYS;
+}
+
+void vbox_gem_prime_unpin(struct drm_gem_object *obj)
+{
+ WARN_ONCE(1, "not implemented");
+}
+
+struct sg_table *vbox_gem_prime_get_sg_table(struct drm_gem_object *obj)
+{
+ WARN_ONCE(1, "not implemented");
+ return ERR_PTR(-ENOSYS);
+}
+
+struct drm_gem_object *vbox_gem_prime_import_sg_table(
+ struct drm_device *dev, struct dma_buf_attachment *attach,
+ struct sg_table *table)
+{
+ WARN_ONCE(1, "not implemented");
+ return ERR_PTR(-ENOSYS);
+}
+
+void *vbox_gem_prime_vmap(struct drm_gem_object *obj)
+{
+ WARN_ONCE(1, "not implemented");
+ return ERR_PTR(-ENOSYS);
+}
+
+void vbox_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
+{
+ WARN_ONCE(1, "not implemented");
+}
+
+int vbox_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *area)
+{
+ WARN_ONCE(1, "not implemented");
+ return -ENOSYS;
+}
--- /dev/null
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright (C) 2013-2017 Oracle Corporation
+ * This file is based on ast_ttm.c
+ * Copyright 2012 Red Hat Inc.
+ * Authors: Dave Airlie <airlied@redhat.com>
+ * Michael Thayer <michael.thayer@oracle.com>
+ */
+#include <linux/pci.h>
+#include <drm/drm_file.h>
+#include <drm/ttm/ttm_page_alloc.h>
+#include "vbox_drv.h"
+
+static inline struct vbox_private *vbox_bdev(struct ttm_bo_device *bd)
+{
+ return container_of(bd, struct vbox_private, ttm.bdev);
+}
+
+static void vbox_bo_ttm_destroy(struct ttm_buffer_object *tbo)
+{
+ struct vbox_bo *bo;
+
+ bo = container_of(tbo, struct vbox_bo, bo);
+
+ drm_gem_object_release(&bo->gem);
+ kfree(bo);
+}
+
+static bool vbox_ttm_bo_is_vbox_bo(struct ttm_buffer_object *bo)
+{
+ if (bo->destroy == &vbox_bo_ttm_destroy)
+ return true;
+
+ return false;
+}
+
+static int
+vbox_bo_init_mem_type(struct ttm_bo_device *bdev, u32 type,
+ struct ttm_mem_type_manager *man)
+{
+ switch (type) {
+ case TTM_PL_SYSTEM:
+ man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
+ man->available_caching = TTM_PL_MASK_CACHING;
+ man->default_caching = TTM_PL_FLAG_CACHED;
+ break;
+ case TTM_PL_VRAM:
+ man->func = &ttm_bo_manager_func;
+ man->flags = TTM_MEMTYPE_FLAG_FIXED | TTM_MEMTYPE_FLAG_MAPPABLE;
+ man->available_caching = TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
+ man->default_caching = TTM_PL_FLAG_WC;
+ break;
+ default:
+ DRM_ERROR("Unsupported memory type %u\n", (unsigned int)type);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void
+vbox_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
+{
+ struct vbox_bo *vboxbo = vbox_bo(bo);
+
+ if (!vbox_ttm_bo_is_vbox_bo(bo))
+ return;
+
+ vbox_ttm_placement(vboxbo, TTM_PL_FLAG_SYSTEM);
+ *pl = vboxbo->placement;
+}
+
+static int vbox_bo_verify_access(struct ttm_buffer_object *bo,
+ struct file *filp)
+{
+ return 0;
+}
+
+static int vbox_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
+ struct ttm_mem_reg *mem)
+{
+ struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
+ struct vbox_private *vbox = vbox_bdev(bdev);
+
+ mem->bus.addr = NULL;
+ mem->bus.offset = 0;
+ mem->bus.size = mem->num_pages << PAGE_SHIFT;
+ mem->bus.base = 0;
+ mem->bus.is_iomem = false;
+ if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
+ return -EINVAL;
+ switch (mem->mem_type) {
+ case TTM_PL_SYSTEM:
+ /* system memory */
+ return 0;
+ case TTM_PL_VRAM:
+ mem->bus.offset = mem->start << PAGE_SHIFT;
+ mem->bus.base = pci_resource_start(vbox->ddev.pdev, 0);
+ mem->bus.is_iomem = true;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static void vbox_ttm_io_mem_free(struct ttm_bo_device *bdev,
+ struct ttm_mem_reg *mem)
+{
+}
+
+static void vbox_ttm_backend_destroy(struct ttm_tt *tt)
+{
+ ttm_tt_fini(tt);
+ kfree(tt);
+}
+
+static struct ttm_backend_func vbox_tt_backend_func = {
+ .destroy = &vbox_ttm_backend_destroy,
+};
+
+static struct ttm_tt *vbox_ttm_tt_create(struct ttm_buffer_object *bo,
+ u32 page_flags)
+{
+ struct ttm_tt *tt;
+
+ tt = kzalloc(sizeof(*tt), GFP_KERNEL);
+ if (!tt)
+ return NULL;
+
+ tt->func = &vbox_tt_backend_func;
+ if (ttm_tt_init(tt, bo, page_flags)) {
+ kfree(tt);
+ return NULL;
+ }
+
+ return tt;
+}
+
+static struct ttm_bo_driver vbox_bo_driver = {
+ .ttm_tt_create = vbox_ttm_tt_create,
+ .init_mem_type = vbox_bo_init_mem_type,
+ .eviction_valuable = ttm_bo_eviction_valuable,
+ .evict_flags = vbox_bo_evict_flags,
+ .verify_access = vbox_bo_verify_access,
+ .io_mem_reserve = &vbox_ttm_io_mem_reserve,
+ .io_mem_free = &vbox_ttm_io_mem_free,
+};
+
+int vbox_mm_init(struct vbox_private *vbox)
+{
+ int ret;
+ struct drm_device *dev = &vbox->ddev;
+ struct ttm_bo_device *bdev = &vbox->ttm.bdev;
+
+ ret = ttm_bo_device_init(&vbox->ttm.bdev,
+ &vbox_bo_driver,
+ dev->anon_inode->i_mapping,
+ DRM_FILE_PAGE_OFFSET, true);
+ if (ret) {
+ DRM_ERROR("Error initialising bo driver; %d\n", ret);
+ return ret;
+ }
+
+ ret = ttm_bo_init_mm(bdev, TTM_PL_VRAM,
+ vbox->available_vram_size >> PAGE_SHIFT);
+ if (ret) {
+ DRM_ERROR("Failed ttm VRAM init: %d\n", ret);
+ goto err_device_release;
+ }
+
+#ifdef DRM_MTRR_WC
+ vbox->fb_mtrr = drm_mtrr_add(pci_resource_start(dev->pdev, 0),
+ pci_resource_len(dev->pdev, 0),
+ DRM_MTRR_WC);
+#else
+ vbox->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0),
+ pci_resource_len(dev->pdev, 0));
+#endif
+ return 0;
+
+err_device_release:
+ ttm_bo_device_release(&vbox->ttm.bdev);
+ return ret;
+}
+
+void vbox_mm_fini(struct vbox_private *vbox)
+{
+#ifdef DRM_MTRR_WC
+ drm_mtrr_del(vbox->fb_mtrr,
+ pci_resource_start(vbox->ddev.pdev, 0),
+ pci_resource_len(vbox->ddev.pdev, 0), DRM_MTRR_WC);
+#else
+ arch_phys_wc_del(vbox->fb_mtrr);
+#endif
+ ttm_bo_device_release(&vbox->ttm.bdev);
+}
+
+void vbox_ttm_placement(struct vbox_bo *bo, int domain)
+{
+ unsigned int i;
+ u32 c = 0;
+
+ bo->placement.placement = bo->placements;
+ bo->placement.busy_placement = bo->placements;
+
+ if (domain & TTM_PL_FLAG_VRAM)
+ bo->placements[c++].flags =
+ TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM;
+ if (domain & TTM_PL_FLAG_SYSTEM)
+ bo->placements[c++].flags =
+ TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
+ if (!c)
+ bo->placements[c++].flags =
+ TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
+
+ bo->placement.num_placement = c;
+ bo->placement.num_busy_placement = c;
+
+ for (i = 0; i < c; ++i) {
+ bo->placements[i].fpfn = 0;
+ bo->placements[i].lpfn = 0;
+ }
+}
+
+int vbox_bo_create(struct vbox_private *vbox, int size, int align,
+ u32 flags, struct vbox_bo **pvboxbo)
+{
+ struct vbox_bo *vboxbo;
+ size_t acc_size;
+ int ret;
+
+ vboxbo = kzalloc(sizeof(*vboxbo), GFP_KERNEL);
+ if (!vboxbo)
+ return -ENOMEM;
+
+ ret = drm_gem_object_init(&vbox->ddev, &vboxbo->gem, size);
+ if (ret)
+ goto err_free_vboxbo;
+
+ vboxbo->bo.bdev = &vbox->ttm.bdev;
+
+ vbox_ttm_placement(vboxbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
+
+ acc_size = ttm_bo_dma_acc_size(&vbox->ttm.bdev, size,
+ sizeof(struct vbox_bo));
+
+ ret = ttm_bo_init(&vbox->ttm.bdev, &vboxbo->bo, size,
+ ttm_bo_type_device, &vboxbo->placement,
+ align >> PAGE_SHIFT, false, acc_size,
+ NULL, NULL, vbox_bo_ttm_destroy);
+ if (ret)
+ goto err_free_vboxbo;
+
+ *pvboxbo = vboxbo;
+
+ return 0;
+
+err_free_vboxbo:
+ kfree(vboxbo);
+ return ret;
+}
+
+int vbox_bo_pin(struct vbox_bo *bo, u32 pl_flag)
+{
+ struct ttm_operation_ctx ctx = { false, false };
+ int i, ret;
+
+ if (bo->pin_count) {
+ bo->pin_count++;
+ return 0;
+ }
+
+ ret = vbox_bo_reserve(bo, false);
+ if (ret)
+ return ret;
+
+ vbox_ttm_placement(bo, pl_flag);
+
+ for (i = 0; i < bo->placement.num_placement; i++)
+ bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
+
+ ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
+ if (ret == 0)
+ bo->pin_count = 1;
+
+ vbox_bo_unreserve(bo);
+
+ return ret;
+}
+
+int vbox_bo_unpin(struct vbox_bo *bo)
+{
+ struct ttm_operation_ctx ctx = { false, false };
+ int i, ret;
+
+ if (!bo->pin_count) {
+ DRM_ERROR("unpin bad %p\n", bo);
+ return 0;
+ }
+ bo->pin_count--;
+ if (bo->pin_count)
+ return 0;
+
+ ret = vbox_bo_reserve(bo, false);
+ if (ret) {
+ DRM_ERROR("Error %d reserving bo, leaving it pinned\n", ret);
+ return ret;
+ }
+
+ for (i = 0; i < bo->placement.num_placement; i++)
+ bo->placements[i].flags &= ~TTM_PL_FLAG_NO_EVICT;
+
+ ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
+
+ vbox_bo_unreserve(bo);
+
+ return ret;
+}
+
+/*
+ * Move a vbox-owned buffer object to system memory if no one else has it
+ * pinned. The caller must have pinned it previously, and this call will
+ * release the caller's pin.
+ */
+int vbox_bo_push_sysram(struct vbox_bo *bo)
+{
+ struct ttm_operation_ctx ctx = { false, false };
+ int i, ret;
+
+ if (!bo->pin_count) {
+ DRM_ERROR("unpin bad %p\n", bo);
+ return 0;
+ }
+ bo->pin_count--;
+ if (bo->pin_count)
+ return 0;
+
+ if (bo->kmap.virtual) {
+ ttm_bo_kunmap(&bo->kmap);
+ bo->kmap.virtual = NULL;
+ }
+
+ vbox_ttm_placement(bo, TTM_PL_FLAG_SYSTEM);
+
+ for (i = 0; i < bo->placement.num_placement; i++)
+ bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
+
+ ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
+ if (ret) {
+ DRM_ERROR("pushing to VRAM failed\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+int vbox_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *file_priv;
+ struct vbox_private *vbox;
+
+ if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
+ return -EINVAL;
+
+ file_priv = filp->private_data;
+ vbox = file_priv->minor->dev->dev_private;
+
+ return ttm_bo_mmap(filp, vma, &vbox->ttm.bdev);
+}
+
+void *vbox_bo_kmap(struct vbox_bo *bo)
+{
+ int ret;
+
+ if (bo->kmap.virtual)
+ return bo->kmap.virtual;
+
+ ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
+ if (ret) {
+ DRM_ERROR("Error kmapping bo: %d\n", ret);
+ return NULL;
+ }
+
+ return bo->kmap.virtual;
+}
+
+void vbox_bo_kunmap(struct vbox_bo *bo)
+{
+ if (bo->kmap.virtual) {
+ ttm_bo_kunmap(&bo->kmap);
+ bo->kmap.virtual = NULL;
+ }
+}
--- /dev/null
+/* SPDX-License-Identifier: MIT */
+/* Copyright (C) 2006-2016 Oracle Corporation */
+
+#ifndef __VBOXVIDEO_H__
+#define __VBOXVIDEO_H__
+
+#define VBOX_VIDEO_MAX_SCREENS 64
+
+/*
+ * The last 4096 bytes of the guest VRAM contains the generic info for all
+ * DualView chunks: sizes and offsets of chunks. This is filled by miniport.
+ *
+ * Last 4096 bytes of each chunk contain chunk specific data: framebuffer info,
+ * etc. This is used exclusively by the corresponding instance of a display
+ * driver.
+ *
+ * The VRAM layout:
+ * Last 4096 bytes - Adapter information area.
+ * 4096 bytes aligned miniport heap (value specified in the config rouded up).
+ * Slack - what left after dividing the VRAM.
+ * 4096 bytes aligned framebuffers:
+ * last 4096 bytes of each framebuffer is the display information area.
+ *
+ * The Virtual Graphics Adapter information in the guest VRAM is stored by the
+ * guest video driver using structures prepended by VBOXVIDEOINFOHDR.
+ *
+ * When the guest driver writes dword 0 to the VBE_DISPI_INDEX_VBOX_VIDEO
+ * the host starts to process the info. The first element at the start of
+ * the 4096 bytes region should be normally be a LINK that points to
+ * actual information chain. That way the guest driver can have some
+ * fixed layout of the information memory block and just rewrite
+ * the link to point to relevant memory chain.
+ *
+ * The processing stops at the END element.
+ *
+ * The host can access the memory only when the port IO is processed.
+ * All data that will be needed later must be copied from these 4096 bytes.
+ * But other VRAM can be used by host until the mode is disabled.
+ *
+ * The guest driver writes dword 0xffffffff to the VBE_DISPI_INDEX_VBOX_VIDEO
+ * to disable the mode.
+ *
+ * VBE_DISPI_INDEX_VBOX_VIDEO is used to read the configuration information
+ * from the host and issue commands to the host.
+ *
+ * The guest writes the VBE_DISPI_INDEX_VBOX_VIDEO index register, the the
+ * following operations with the VBE data register can be performed:
+ *
+ * Operation Result
+ * write 16 bit value NOP
+ * read 16 bit value count of monitors
+ * write 32 bit value set the vbox cmd value and the cmd processed by the host
+ * read 32 bit value result of the last vbox command is returned
+ */
+
+struct vbva_cmd_hdr {
+ s16 x;
+ s16 y;
+ u16 w;
+ u16 h;
+} __packed;
+
+/*
+ * The VBVA ring buffer is suitable for transferring large (< 2GB) amount of
+ * data. For example big bitmaps which do not fit to the buffer.
+ *
+ * Guest starts writing to the buffer by initializing a record entry in the
+ * records queue. VBVA_F_RECORD_PARTIAL indicates that the record is being
+ * written. As data is written to the ring buffer, the guest increases
+ * free_offset.
+ *
+ * The host reads the records on flushes and processes all completed records.
+ * When host encounters situation when only a partial record presents and
+ * len_and_flags & ~VBVA_F_RECORD_PARTIAL >= VBVA_RING_BUFFER_SIZE -
+ * VBVA_RING_BUFFER_THRESHOLD, the host fetched all record data and updates
+ * data_offset. After that on each flush the host continues fetching the data
+ * until the record is completed.
+ */
+
+#define VBVA_RING_BUFFER_SIZE (4194304 - 1024)
+#define VBVA_RING_BUFFER_THRESHOLD (4096)
+
+#define VBVA_MAX_RECORDS (64)
+
+#define VBVA_F_MODE_ENABLED 0x00000001u
+#define VBVA_F_MODE_VRDP 0x00000002u
+#define VBVA_F_MODE_VRDP_RESET 0x00000004u
+#define VBVA_F_MODE_VRDP_ORDER_MASK 0x00000008u
+
+#define VBVA_F_STATE_PROCESSING 0x00010000u
+
+#define VBVA_F_RECORD_PARTIAL 0x80000000u
+
+struct vbva_record {
+ u32 len_and_flags;
+} __packed;
+
+/*
+ * The minimum HGSMI heap size is PAGE_SIZE (4096 bytes) and is a restriction of
+ * the runtime heapsimple API. Use minimum 2 pages here, because the info area
+ * also may contain other data (for example hgsmi_host_flags structure).
+ */
+#define VBVA_ADAPTER_INFORMATION_SIZE 65536
+#define VBVA_MIN_BUFFER_SIZE 65536
+
+/* The value for port IO to let the adapter to interpret the adapter memory. */
+#define VBOX_VIDEO_DISABLE_ADAPTER_MEMORY 0xFFFFFFFF
+
+/* The value for port IO to let the adapter to interpret the adapter memory. */
+#define VBOX_VIDEO_INTERPRET_ADAPTER_MEMORY 0x00000000
+
+/*
+ * The value for port IO to let the adapter to interpret the display memory.
+ * The display number is encoded in low 16 bits.
+ */
+#define VBOX_VIDEO_INTERPRET_DISPLAY_MEMORY_BASE 0x00010000
+
+struct vbva_host_flags {
+ u32 host_events;
+ u32 supported_orders;
+} __packed;
+
+struct vbva_buffer {
+ struct vbva_host_flags host_flags;
+
+ /* The offset where the data start in the buffer. */
+ u32 data_offset;
+ /* The offset where next data must be placed in the buffer. */
+ u32 free_offset;
+
+ /* The queue of record descriptions. */
+ struct vbva_record records[VBVA_MAX_RECORDS];
+ u32 record_first_index;
+ u32 record_free_index;
+
+ /* Space to leave free when large partial records are transferred. */
+ u32 partial_write_tresh;
+
+ u32 data_len;
+ /* variable size for the rest of the vbva_buffer area in VRAM. */
+ u8 data[0];
+} __packed;
+
+#define VBVA_MAX_RECORD_SIZE (128 * 1024 * 1024)
+
+/* guest->host commands */
+#define VBVA_QUERY_CONF32 1
+#define VBVA_SET_CONF32 2
+#define VBVA_INFO_VIEW 3
+#define VBVA_INFO_HEAP 4
+#define VBVA_FLUSH 5
+#define VBVA_INFO_SCREEN 6
+#define VBVA_ENABLE 7
+#define VBVA_MOUSE_POINTER_SHAPE 8
+/* informs host about HGSMI caps. see vbva_caps below */
+#define VBVA_INFO_CAPS 12
+/* configures scanline, see VBVASCANLINECFG below */
+#define VBVA_SCANLINE_CFG 13
+/* requests scanline info, see VBVASCANLINEINFO below */
+#define VBVA_SCANLINE_INFO 14
+/* inform host about VBVA Command submission */
+#define VBVA_CMDVBVA_SUBMIT 16
+/* inform host about VBVA Command submission */
+#define VBVA_CMDVBVA_FLUSH 17
+/* G->H DMA command */
+#define VBVA_CMDVBVA_CTL 18
+/* Query most recent mode hints sent */
+#define VBVA_QUERY_MODE_HINTS 19
+/*
+ * Report the guest virtual desktop position and size for mapping host and
+ * guest pointer positions.
+ */
+#define VBVA_REPORT_INPUT_MAPPING 20
+/* Report the guest cursor position and query the host position. */
+#define VBVA_CURSOR_POSITION 21
+
+/* host->guest commands */
+#define VBVAHG_EVENT 1
+#define VBVAHG_DISPLAY_CUSTOM 2
+
+/* vbva_conf32::index */
+#define VBOX_VBVA_CONF32_MONITOR_COUNT 0
+#define VBOX_VBVA_CONF32_HOST_HEAP_SIZE 1
+/*
+ * Returns VINF_SUCCESS if the host can report mode hints via VBVA.
+ * Set value to VERR_NOT_SUPPORTED before calling.
+ */
+#define VBOX_VBVA_CONF32_MODE_HINT_REPORTING 2
+/*
+ * Returns VINF_SUCCESS if the host can report guest cursor enabled status via
+ * VBVA. Set value to VERR_NOT_SUPPORTED before calling.
+ */
+#define VBOX_VBVA_CONF32_GUEST_CURSOR_REPORTING 3
+/*
+ * Returns the currently available host cursor capabilities. Available if
+ * VBOX_VBVA_CONF32_GUEST_CURSOR_REPORTING returns success.
+ */
+#define VBOX_VBVA_CONF32_CURSOR_CAPABILITIES 4
+/* Returns the supported flags in vbva_infoscreen.flags. */
+#define VBOX_VBVA_CONF32_SCREEN_FLAGS 5
+/* Returns the max size of VBVA record. */
+#define VBOX_VBVA_CONF32_MAX_RECORD_SIZE 6
+
+struct vbva_conf32 {
+ u32 index;
+ u32 value;
+} __packed;
+
+/* Reserved for historical reasons. */
+#define VBOX_VBVA_CURSOR_CAPABILITY_RESERVED0 BIT(0)
+/*
+ * Guest cursor capability: can the host show a hardware cursor at the host
+ * pointer location?
+ */
+#define VBOX_VBVA_CURSOR_CAPABILITY_HARDWARE BIT(1)
+/* Reserved for historical reasons. */
+#define VBOX_VBVA_CURSOR_CAPABILITY_RESERVED2 BIT(2)
+/* Reserved for historical reasons. Must always be unset. */
+#define VBOX_VBVA_CURSOR_CAPABILITY_RESERVED3 BIT(3)
+/* Reserved for historical reasons. */
+#define VBOX_VBVA_CURSOR_CAPABILITY_RESERVED4 BIT(4)
+/* Reserved for historical reasons. */
+#define VBOX_VBVA_CURSOR_CAPABILITY_RESERVED5 BIT(5)
+
+struct vbva_infoview {
+ /* Index of the screen, assigned by the guest. */
+ u32 view_index;
+
+ /* The screen offset in VRAM, the framebuffer starts here. */
+ u32 view_offset;
+
+ /* The size of the VRAM memory that can be used for the view. */
+ u32 view_size;
+
+ /* The recommended maximum size of the VRAM memory for the screen. */
+ u32 max_screen_size;
+} __packed;
+
+struct vbva_flush {
+ u32 reserved;
+} __packed;
+
+/* vbva_infoscreen.flags */
+#define VBVA_SCREEN_F_NONE 0x0000
+#define VBVA_SCREEN_F_ACTIVE 0x0001
+/*
+ * The virtual monitor has been disabled by the guest and should be removed
+ * by the host and ignored for purposes of pointer position calculation.
+ */
+#define VBVA_SCREEN_F_DISABLED 0x0002
+/*
+ * The virtual monitor has been blanked by the guest and should be blacked
+ * out by the host using width, height, etc values from the vbva_infoscreen
+ * request.
+ */
+#define VBVA_SCREEN_F_BLANK 0x0004
+/*
+ * The virtual monitor has been blanked by the guest and should be blacked
+ * out by the host using the previous mode values for width. height, etc.
+ */
+#define VBVA_SCREEN_F_BLANK2 0x0008
+
+struct vbva_infoscreen {
+ /* Which view contains the screen. */
+ u32 view_index;
+
+ /* Physical X origin relative to the primary screen. */
+ s32 origin_x;
+
+ /* Physical Y origin relative to the primary screen. */
+ s32 origin_y;
+
+ /* Offset of visible framebuffer relative to the framebuffer start. */
+ u32 start_offset;
+
+ /* The scan line size in bytes. */
+ u32 line_size;
+
+ /* Width of the screen. */
+ u32 width;
+
+ /* Height of the screen. */
+ u32 height;
+
+ /* Color depth. */
+ u16 bits_per_pixel;
+
+ /* VBVA_SCREEN_F_* */
+ u16 flags;
+} __packed;
+
+/* vbva_enable.flags */
+#define VBVA_F_NONE 0x00000000
+#define VBVA_F_ENABLE 0x00000001
+#define VBVA_F_DISABLE 0x00000002
+/* extended VBVA to be used with WDDM */
+#define VBVA_F_EXTENDED 0x00000004
+/* vbva offset is absolute VRAM offset */
+#define VBVA_F_ABSOFFSET 0x00000008
+
+struct vbva_enable {
+ u32 flags;
+ u32 offset;
+ s32 result;
+} __packed;
+
+struct vbva_enable_ex {
+ struct vbva_enable base;
+ u32 screen_id;
+} __packed;
+
+struct vbva_mouse_pointer_shape {
+ /* The host result. */
+ s32 result;
+
+ /* VBOX_MOUSE_POINTER_* bit flags. */
+ u32 flags;
+
+ /* X coordinate of the hot spot. */
+ u32 hot_X;
+
+ /* Y coordinate of the hot spot. */
+ u32 hot_y;
+
+ /* Width of the pointer in pixels. */
+ u32 width;
+
+ /* Height of the pointer in scanlines. */
+ u32 height;
+
+ /* Pointer data.
+ *
+ * The data consists of 1 bpp AND mask followed by 32 bpp XOR (color)
+ * mask.
+ *
+ * For pointers without alpha channel the XOR mask pixels are 32 bit
+ * values: (lsb)BGR0(msb). For pointers with alpha channel the XOR mask
+ * consists of (lsb)BGRA(msb) 32 bit values.
+ *
+ * Guest driver must create the AND mask for pointers with alpha chan.,
+ * so if host does not support alpha, the pointer could be displayed as
+ * a normal color pointer. The AND mask can be constructed from alpha
+ * values. For example alpha value >= 0xf0 means bit 0 in the AND mask.
+ *
+ * The AND mask is 1 bpp bitmap with byte aligned scanlines. Size of AND
+ * mask, therefore, is and_len = (width + 7) / 8 * height. The padding
+ * bits at the end of any scanline are undefined.
+ *
+ * The XOR mask follows the AND mask on the next 4 bytes aligned offset:
+ * u8 *xor = and + (and_len + 3) & ~3
+ * Bytes in the gap between the AND and the XOR mask are undefined.
+ * XOR mask scanlines have no gap between them and size of XOR mask is:
+ * xor_len = width * 4 * height.
+ *
+ * Preallocate 4 bytes for accessing actual data as p->data.
+ */
+ u8 data[4];
+} __packed;
+
+/* pointer is visible */
+#define VBOX_MOUSE_POINTER_VISIBLE 0x0001
+/* pointer has alpha channel */
+#define VBOX_MOUSE_POINTER_ALPHA 0x0002
+/* pointerData contains new pointer shape */
+#define VBOX_MOUSE_POINTER_SHAPE 0x0004
+
+/*
+ * The guest driver can handle asynch guest cmd completion by reading the
+ * command offset from io port.
+ */
+#define VBVACAPS_COMPLETEGCMD_BY_IOREAD 0x00000001
+/* the guest driver can handle video adapter IRQs */
+#define VBVACAPS_IRQ 0x00000002
+/* The guest can read video mode hints sent via VBVA. */
+#define VBVACAPS_VIDEO_MODE_HINTS 0x00000004
+/* The guest can switch to a software cursor on demand. */
+#define VBVACAPS_DISABLE_CURSOR_INTEGRATION 0x00000008
+/* The guest does not depend on host handling the VBE registers. */
+#define VBVACAPS_USE_VBVA_ONLY 0x00000010
+
+struct vbva_caps {
+ s32 rc;
+ u32 caps;
+} __packed;
+
+/* Query the most recent mode hints received from the host. */
+struct vbva_query_mode_hints {
+ /* The maximum number of screens to return hints for. */
+ u16 hints_queried_count;
+ /* The size of the mode hint structures directly following this one. */
+ u16 hint_structure_guest_size;
+ /* Return code for the operation. Initialise to VERR_NOT_SUPPORTED. */
+ s32 rc;
+} __packed;
+
+/*
+ * Structure in which a mode hint is returned. The guest allocates an array
+ * of these immediately after the vbva_query_mode_hints structure.
+ * To accommodate future extensions, the vbva_query_mode_hints structure
+ * specifies the size of the vbva_modehint structures allocated by the guest,
+ * and the host only fills out structure elements which fit into that size. The
+ * host should fill any unused members (e.g. dx, dy) or structure space on the
+ * end with ~0. The whole structure can legally be set to ~0 to skip a screen.
+ */
+struct vbva_modehint {
+ u32 magic;
+ u32 cx;
+ u32 cy;
+ u32 bpp; /* Which has never been used... */
+ u32 display;
+ u32 dx; /* X offset into the virtual frame-buffer. */
+ u32 dy; /* Y offset into the virtual frame-buffer. */
+ u32 enabled; /* Not flags. Add new members for new flags. */
+} __packed;
+
+#define VBVAMODEHINT_MAGIC 0x0801add9u
+
+/*
+ * Report the rectangle relative to which absolute pointer events should be
+ * expressed. This information remains valid until the next VBVA resize event
+ * for any screen, at which time it is reset to the bounding rectangle of all
+ * virtual screens and must be re-set.
+ */
+struct vbva_report_input_mapping {
+ s32 x; /* Upper left X co-ordinate relative to the first screen. */
+ s32 y; /* Upper left Y co-ordinate relative to the first screen. */
+ u32 cx; /* Rectangle width. */
+ u32 cy; /* Rectangle height. */
+} __packed;
+
+/*
+ * Report the guest cursor position and query the host one. The host may wish
+ * to use the guest information to re-position its own cursor (though this is
+ * currently unlikely).
+ */
+struct vbva_cursor_position {
+ u32 report_position; /* Are we reporting a position? */
+ u32 x; /* Guest cursor X position */
+ u32 y; /* Guest cursor Y position */
+} __packed;
+
+#endif
--- /dev/null
+/* SPDX-License-Identifier: MIT */
+/* Copyright (C) 2006-2016 Oracle Corporation */
+
+#ifndef __VBOXVIDEO_GUEST_H__
+#define __VBOXVIDEO_GUEST_H__
+
+#include <linux/genalloc.h>
+#include "vboxvideo.h"
+
+/*
+ * Structure grouping the context needed for sending graphics acceleration
+ * information to the host via VBVA. Each screen has its own VBVA buffer.
+ */
+struct vbva_buf_ctx {
+ /* Offset of the buffer in the VRAM section for the screen */
+ u32 buffer_offset;
+ /* Length of the buffer in bytes */
+ u32 buffer_length;
+ /* Set if we wrote to the buffer faster than the host could read it */
+ bool buffer_overflow;
+ /* VBVA record that we are currently preparing for the host, or NULL */
+ struct vbva_record *record;
+ /*
+ * Pointer to the VBVA buffer mapped into the current address space.
+ * Will be NULL if VBVA is not enabled.
+ */
+ struct vbva_buffer *vbva;
+};
+
+int hgsmi_report_flags_location(struct gen_pool *ctx, u32 location);
+int hgsmi_send_caps_info(struct gen_pool *ctx, u32 caps);
+int hgsmi_test_query_conf(struct gen_pool *ctx);
+int hgsmi_query_conf(struct gen_pool *ctx, u32 index, u32 *value_ret);
+int hgsmi_update_pointer_shape(struct gen_pool *ctx, u32 flags,
+ u32 hot_x, u32 hot_y, u32 width, u32 height,
+ u8 *pixels, u32 len);
+int hgsmi_cursor_position(struct gen_pool *ctx, bool report_position,
+ u32 x, u32 y, u32 *x_host, u32 *y_host);
+
+bool vbva_enable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
+ struct vbva_buffer *vbva, s32 screen);
+void vbva_disable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
+ s32 screen);
+bool vbva_buffer_begin_update(struct vbva_buf_ctx *vbva_ctx,
+ struct gen_pool *ctx);
+void vbva_buffer_end_update(struct vbva_buf_ctx *vbva_ctx);
+bool vbva_write(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
+ const void *p, u32 len);
+void vbva_setup_buffer_context(struct vbva_buf_ctx *vbva_ctx,
+ u32 buffer_offset, u32 buffer_length);
+
+void hgsmi_process_display_info(struct gen_pool *ctx, u32 display,
+ s32 origin_x, s32 origin_y, u32 start_offset,
+ u32 pitch, u32 width, u32 height,
+ u16 bpp, u16 flags);
+int hgsmi_update_input_mapping(struct gen_pool *ctx, s32 origin_x, s32 origin_y,
+ u32 width, u32 height);
+int hgsmi_get_mode_hints(struct gen_pool *ctx, unsigned int screens,
+ struct vbva_modehint *hints);
+
+#endif
--- /dev/null
+/* SPDX-License-Identifier: MIT */
+/* Copyright (C) 2006-2016 Oracle Corporation */
+
+#ifndef __VBOXVIDEO_VBE_H__
+#define __VBOXVIDEO_VBE_H__
+
+/* GUEST <-> HOST Communication API */
+
+#define VBE_DISPI_BANK_ADDRESS 0xA0000
+#define VBE_DISPI_BANK_SIZE_KB 64
+
+#define VBE_DISPI_MAX_XRES 16384
+#define VBE_DISPI_MAX_YRES 16384
+#define VBE_DISPI_MAX_BPP 32
+
+#define VBE_DISPI_IOPORT_INDEX 0x01CE
+#define VBE_DISPI_IOPORT_DATA 0x01CF
+
+#define VBE_DISPI_IOPORT_DAC_WRITE_INDEX 0x03C8
+#define VBE_DISPI_IOPORT_DAC_DATA 0x03C9
+
+#define VBE_DISPI_INDEX_ID 0x0
+#define VBE_DISPI_INDEX_XRES 0x1
+#define VBE_DISPI_INDEX_YRES 0x2
+#define VBE_DISPI_INDEX_BPP 0x3
+#define VBE_DISPI_INDEX_ENABLE 0x4
+#define VBE_DISPI_INDEX_BANK 0x5
+#define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
+#define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
+#define VBE_DISPI_INDEX_X_OFFSET 0x8
+#define VBE_DISPI_INDEX_Y_OFFSET 0x9
+#define VBE_DISPI_INDEX_VBOX_VIDEO 0xa
+#define VBE_DISPI_INDEX_FB_BASE_HI 0xb
+
+#define VBE_DISPI_ID0 0xB0C0
+#define VBE_DISPI_ID1 0xB0C1
+#define VBE_DISPI_ID2 0xB0C2
+#define VBE_DISPI_ID3 0xB0C3
+#define VBE_DISPI_ID4 0xB0C4
+
+#define VBE_DISPI_ID_VBOX_VIDEO 0xBE00
+/* The VBOX interface id. Indicates support for VBVA shared memory interface. */
+#define VBE_DISPI_ID_HGSMI 0xBE01
+#define VBE_DISPI_ID_ANYX 0xBE02
+
+#define VBE_DISPI_DISABLED 0x00
+#define VBE_DISPI_ENABLED 0x01
+#define VBE_DISPI_GETCAPS 0x02
+#define VBE_DISPI_8BIT_DAC 0x20
+
+#define VGA_PORT_HGSMI_HOST 0x3b0
+#define VGA_PORT_HGSMI_GUEST 0x3d0
+
+#endif
--- /dev/null
+// SPDX-License-Identifier: MIT
+/* Copyright (C) 2006-2017 Oracle Corporation */
+
+#include <linux/vbox_err.h>
+#include "vbox_drv.h"
+#include "vboxvideo_guest.h"
+#include "hgsmi_channels.h"
+
+/*
+ * There is a hardware ring buffer in the graphics device video RAM, formerly
+ * in the VBox VMMDev PCI memory space.
+ * All graphics commands go there serialized by vbva_buffer_begin_update.
+ * and vbva_buffer_end_update.
+ *
+ * free_offset is writing position. data_offset is reading position.
+ * free_offset == data_offset means buffer is empty.
+ * There must be always gap between data_offset and free_offset when data
+ * are in the buffer.
+ * Guest only changes free_offset, host changes data_offset.
+ */
+
+static u32 vbva_buffer_available(const struct vbva_buffer *vbva)
+{
+ s32 diff = vbva->data_offset - vbva->free_offset;
+
+ return diff > 0 ? diff : vbva->data_len + diff;
+}
+
+static void vbva_buffer_place_data_at(struct vbva_buf_ctx *vbva_ctx,
+ const void *p, u32 len, u32 offset)
+{
+ struct vbva_buffer *vbva = vbva_ctx->vbva;
+ u32 bytes_till_boundary = vbva->data_len - offset;
+ u8 *dst = &vbva->data[offset];
+ s32 diff = len - bytes_till_boundary;
+
+ if (diff <= 0) {
+ /* Chunk will not cross buffer boundary. */
+ memcpy(dst, p, len);
+ } else {
+ /* Chunk crosses buffer boundary. */
+ memcpy(dst, p, bytes_till_boundary);
+ memcpy(&vbva->data[0], (u8 *)p + bytes_till_boundary, diff);
+ }
+}
+
+static void vbva_buffer_flush(struct gen_pool *ctx)
+{
+ struct vbva_flush *p;
+
+ p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA, VBVA_FLUSH);
+ if (!p)
+ return;
+
+ p->reserved = 0;
+
+ hgsmi_buffer_submit(ctx, p);
+ hgsmi_buffer_free(ctx, p);
+}
+
+bool vbva_write(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
+ const void *p, u32 len)
+{
+ struct vbva_record *record;
+ struct vbva_buffer *vbva;
+ u32 available;
+
+ vbva = vbva_ctx->vbva;
+ record = vbva_ctx->record;
+
+ if (!vbva || vbva_ctx->buffer_overflow ||
+ !record || !(record->len_and_flags & VBVA_F_RECORD_PARTIAL))
+ return false;
+
+ available = vbva_buffer_available(vbva);
+
+ while (len > 0) {
+ u32 chunk = len;
+
+ if (chunk >= available) {
+ vbva_buffer_flush(ctx);
+ available = vbva_buffer_available(vbva);
+ }
+
+ if (chunk >= available) {
+ if (WARN_ON(available <= vbva->partial_write_tresh)) {
+ vbva_ctx->buffer_overflow = true;
+ return false;
+ }
+ chunk = available - vbva->partial_write_tresh;
+ }
+
+ vbva_buffer_place_data_at(vbva_ctx, p, chunk,
+ vbva->free_offset);
+
+ vbva->free_offset = (vbva->free_offset + chunk) %
+ vbva->data_len;
+ record->len_and_flags += chunk;
+ available -= chunk;
+ len -= chunk;
+ p += chunk;
+ }
+
+ return true;
+}
+
+static bool vbva_inform_host(struct vbva_buf_ctx *vbva_ctx,
+ struct gen_pool *ctx, s32 screen, bool enable)
+{
+ struct vbva_enable_ex *p;
+ bool ret;
+
+ p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA, VBVA_ENABLE);
+ if (!p)
+ return false;
+
+ p->base.flags = enable ? VBVA_F_ENABLE : VBVA_F_DISABLE;
+ p->base.offset = vbva_ctx->buffer_offset;
+ p->base.result = VERR_NOT_SUPPORTED;
+ if (screen >= 0) {
+ p->base.flags |= VBVA_F_EXTENDED | VBVA_F_ABSOFFSET;
+ p->screen_id = screen;
+ }
+
+ hgsmi_buffer_submit(ctx, p);
+
+ if (enable)
+ ret = p->base.result >= 0;
+ else
+ ret = true;
+
+ hgsmi_buffer_free(ctx, p);
+
+ return ret;
+}
+
+bool vbva_enable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
+ struct vbva_buffer *vbva, s32 screen)
+{
+ bool ret = false;
+
+ memset(vbva, 0, sizeof(*vbva));
+ vbva->partial_write_tresh = 256;
+ vbva->data_len = vbva_ctx->buffer_length - sizeof(struct vbva_buffer);
+ vbva_ctx->vbva = vbva;
+
+ ret = vbva_inform_host(vbva_ctx, ctx, screen, true);
+ if (!ret)
+ vbva_disable(vbva_ctx, ctx, screen);
+
+ return ret;
+}
+
+void vbva_disable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
+ s32 screen)
+{
+ vbva_ctx->buffer_overflow = false;
+ vbva_ctx->record = NULL;
+ vbva_ctx->vbva = NULL;
+
+ vbva_inform_host(vbva_ctx, ctx, screen, false);
+}
+
+bool vbva_buffer_begin_update(struct vbva_buf_ctx *vbva_ctx,
+ struct gen_pool *ctx)
+{
+ struct vbva_record *record;
+ u32 next;
+
+ if (!vbva_ctx->vbva ||
+ !(vbva_ctx->vbva->host_flags.host_events & VBVA_F_MODE_ENABLED))
+ return false;
+
+ WARN_ON(vbva_ctx->buffer_overflow || vbva_ctx->record);
+
+ next = (vbva_ctx->vbva->record_free_index + 1) % VBVA_MAX_RECORDS;
+
+ /* Flush if all slots in the records queue are used */
+ if (next == vbva_ctx->vbva->record_first_index)
+ vbva_buffer_flush(ctx);
+
+ /* If even after flush there is no place then fail the request */
+ if (next == vbva_ctx->vbva->record_first_index)
+ return false;
+
+ record = &vbva_ctx->vbva->records[vbva_ctx->vbva->record_free_index];
+ record->len_and_flags = VBVA_F_RECORD_PARTIAL;
+ vbva_ctx->vbva->record_free_index = next;
+ /* Remember which record we are using. */
+ vbva_ctx->record = record;
+
+ return true;
+}
+
+void vbva_buffer_end_update(struct vbva_buf_ctx *vbva_ctx)
+{
+ struct vbva_record *record = vbva_ctx->record;
+
+ WARN_ON(!vbva_ctx->vbva || !record ||
+ !(record->len_and_flags & VBVA_F_RECORD_PARTIAL));
+
+ /* Mark the record completed. */
+ record->len_and_flags &= ~VBVA_F_RECORD_PARTIAL;
+
+ vbva_ctx->buffer_overflow = false;
+ vbva_ctx->record = NULL;
+}
+
+void vbva_setup_buffer_context(struct vbva_buf_ctx *vbva_ctx,
+ u32 buffer_offset, u32 buffer_length)
+{
+ vbva_ctx->buffer_offset = buffer_offset;
+ vbva_ctx->buffer_length = buffer_length;
+}
source "drivers/staging/vc04_services/Kconfig"
-source "drivers/staging/vboxvideo/Kconfig"
-
source "drivers/staging/pi433/Kconfig"
source "drivers/staging/mt7621-pci/Kconfig"
obj-$(CONFIG_KS7010) += ks7010/
obj-$(CONFIG_GREYBUS) += greybus/
obj-$(CONFIG_BCM2835_VCHIQ) += vc04_services/
-obj-$(CONFIG_DRM_VBOXVIDEO) += vboxvideo/
obj-$(CONFIG_PI433) += pi433/
obj-$(CONFIG_SOC_MT7621) += mt7621-pci/
obj-$(CONFIG_SOC_MT7621) += mt7621-pinctrl/
+++ /dev/null
-config DRM_VBOXVIDEO
- tristate "Virtual Box Graphics Card"
- depends on DRM && X86 && PCI
- select DRM_KMS_HELPER
- select DRM_TTM
- select GENERIC_ALLOCATOR
- help
- This is a KMS driver for the virtual Graphics Card used in
- Virtual Box virtual machines.
-
- Although it is possible to build this driver built-in to the
- kernel, it is advised to build it as a module, so that it can
- be updated independently of the kernel. Select M to build this
- driver as a module and add support for these devices via drm/kms
- interfaces.
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0
-vboxvideo-y := hgsmi_base.o modesetting.o vbva_base.o \
- vbox_drv.o vbox_fb.o vbox_hgsmi.o vbox_irq.o vbox_main.o \
- vbox_mode.o vbox_prime.o vbox_ttm.o
-
-obj-$(CONFIG_DRM_VBOXVIDEO) += vboxvideo.o
+++ /dev/null
-TODO:
--Get a full review from the drm-maintainers on dri-devel done on this driver
--Extend this TODO with the results of that review
-
-Please send any patches to Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
-Hans de Goede <hdegoede@redhat.com>, Michael Thayer <michael.thayer@oracle.com>
-and dri-devel@lists.freedesktop.org .
+++ /dev/null
-// SPDX-License-Identifier: MIT
-/* Copyright (C) 2006-2017 Oracle Corporation */
-
-#include <linux/vbox_err.h>
-#include "vbox_drv.h"
-#include "vboxvideo_guest.h"
-#include "vboxvideo_vbe.h"
-#include "hgsmi_channels.h"
-#include "hgsmi_ch_setup.h"
-
-/**
- * Inform the host of the location of the host flags in VRAM via an HGSMI cmd.
- * Return: 0 or negative errno value.
- * @ctx: The context of the guest heap to use.
- * @location: The offset chosen for the flags within guest VRAM.
- */
-int hgsmi_report_flags_location(struct gen_pool *ctx, u32 location)
-{
- struct hgsmi_buffer_location *p;
-
- p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_HGSMI,
- HGSMI_CC_HOST_FLAGS_LOCATION);
- if (!p)
- return -ENOMEM;
-
- p->buf_location = location;
- p->buf_len = sizeof(struct hgsmi_host_flags);
-
- hgsmi_buffer_submit(ctx, p);
- hgsmi_buffer_free(ctx, p);
-
- return 0;
-}
-
-/**
- * Notify the host of HGSMI-related guest capabilities via an HGSMI command.
- * Return: 0 or negative errno value.
- * @ctx: The context of the guest heap to use.
- * @caps: The capabilities to report, see vbva_caps.
- */
-int hgsmi_send_caps_info(struct gen_pool *ctx, u32 caps)
-{
- struct vbva_caps *p;
-
- p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA, VBVA_INFO_CAPS);
- if (!p)
- return -ENOMEM;
-
- p->rc = VERR_NOT_IMPLEMENTED;
- p->caps = caps;
-
- hgsmi_buffer_submit(ctx, p);
-
- WARN_ON_ONCE(p->rc < 0);
-
- hgsmi_buffer_free(ctx, p);
-
- return 0;
-}
-
-int hgsmi_test_query_conf(struct gen_pool *ctx)
-{
- u32 value = 0;
- int ret;
-
- ret = hgsmi_query_conf(ctx, U32_MAX, &value);
- if (ret)
- return ret;
-
- return value == U32_MAX ? 0 : -EIO;
-}
-
-/**
- * Query the host for an HGSMI configuration parameter via an HGSMI command.
- * Return: 0 or negative errno value.
- * @ctx: The context containing the heap used.
- * @index: The index of the parameter to query.
- * @value_ret: Where to store the value of the parameter on success.
- */
-int hgsmi_query_conf(struct gen_pool *ctx, u32 index, u32 *value_ret)
-{
- struct vbva_conf32 *p;
-
- p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA,
- VBVA_QUERY_CONF32);
- if (!p)
- return -ENOMEM;
-
- p->index = index;
- p->value = U32_MAX;
-
- hgsmi_buffer_submit(ctx, p);
-
- *value_ret = p->value;
-
- hgsmi_buffer_free(ctx, p);
-
- return 0;
-}
-
-/**
- * Pass the host a new mouse pointer shape via an HGSMI command.
- * Return: 0 or negative errno value.
- * @ctx: The context containing the heap to be used.
- * @flags: Cursor flags.
- * @hot_x: Horizontal position of the hot spot.
- * @hot_y: Vertical position of the hot spot.
- * @width: Width in pixels of the cursor.
- * @height: Height in pixels of the cursor.
- * @pixels: Pixel data, @see VMMDevReqMousePointer for the format.
- * @len: Size in bytes of the pixel data.
- */
-int hgsmi_update_pointer_shape(struct gen_pool *ctx, u32 flags,
- u32 hot_x, u32 hot_y, u32 width, u32 height,
- u8 *pixels, u32 len)
-{
- struct vbva_mouse_pointer_shape *p;
- u32 pixel_len = 0;
- int rc;
-
- if (flags & VBOX_MOUSE_POINTER_SHAPE) {
- /*
- * Size of the pointer data:
- * sizeof (AND mask) + sizeof (XOR_MASK)
- */
- pixel_len = ((((width + 7) / 8) * height + 3) & ~3) +
- width * 4 * height;
- if (pixel_len > len)
- return -EINVAL;
-
- /*
- * If shape is supplied, then always create the pointer visible.
- * See comments in 'vboxUpdatePointerShape'
- */
- flags |= VBOX_MOUSE_POINTER_VISIBLE;
- }
-
- p = hgsmi_buffer_alloc(ctx, sizeof(*p) + pixel_len, HGSMI_CH_VBVA,
- VBVA_MOUSE_POINTER_SHAPE);
- if (!p)
- return -ENOMEM;
-
- p->result = VINF_SUCCESS;
- p->flags = flags;
- p->hot_X = hot_x;
- p->hot_y = hot_y;
- p->width = width;
- p->height = height;
- if (pixel_len)
- memcpy(p->data, pixels, pixel_len);
-
- hgsmi_buffer_submit(ctx, p);
-
- switch (p->result) {
- case VINF_SUCCESS:
- rc = 0;
- break;
- case VERR_NO_MEMORY:
- rc = -ENOMEM;
- break;
- case VERR_NOT_SUPPORTED:
- rc = -EBUSY;
- break;
- default:
- rc = -EINVAL;
- }
-
- hgsmi_buffer_free(ctx, p);
-
- return rc;
-}
-
-/**
- * Report the guest cursor position. The host may wish to use this information
- * to re-position its own cursor (though this is currently unlikely). The
- * current host cursor position is returned.
- * Return: 0 or negative errno value.
- * @ctx: The context containing the heap used.
- * @report_position: Are we reporting a position?
- * @x: Guest cursor X position.
- * @y: Guest cursor Y position.
- * @x_host: Host cursor X position is stored here. Optional.
- * @y_host: Host cursor Y position is stored here. Optional.
- */
-int hgsmi_cursor_position(struct gen_pool *ctx, bool report_position,
- u32 x, u32 y, u32 *x_host, u32 *y_host)
-{
- struct vbva_cursor_position *p;
-
- p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA,
- VBVA_CURSOR_POSITION);
- if (!p)
- return -ENOMEM;
-
- p->report_position = report_position;
- p->x = x;
- p->y = y;
-
- hgsmi_buffer_submit(ctx, p);
-
- *x_host = p->x;
- *y_host = p->y;
-
- hgsmi_buffer_free(ctx, p);
-
- return 0;
-}
+++ /dev/null
-/* SPDX-License-Identifier: MIT */
-/* Copyright (C) 2006-2017 Oracle Corporation */
-
-#ifndef __HGSMI_CH_SETUP_H__
-#define __HGSMI_CH_SETUP_H__
-
-/*
- * Tell the host the location of hgsmi_host_flags structure, where the host
- * can write information about pending buffers, etc, and which can be quickly
- * polled by the guest without a need to port IO.
- */
-#define HGSMI_CC_HOST_FLAGS_LOCATION 0
-
-struct hgsmi_buffer_location {
- u32 buf_location;
- u32 buf_len;
-} __packed;
-
-/* HGSMI setup and configuration data structures. */
-
-#define HGSMIHOSTFLAGS_COMMANDS_PENDING 0x01u
-#define HGSMIHOSTFLAGS_IRQ 0x02u
-#define HGSMIHOSTFLAGS_VSYNC 0x10u
-#define HGSMIHOSTFLAGS_HOTPLUG 0x20u
-#define HGSMIHOSTFLAGS_CURSOR_CAPABILITIES 0x40u
-
-struct hgsmi_host_flags {
- u32 host_flags;
- u32 reserved[3];
-} __packed;
-
-#endif
+++ /dev/null
-/* SPDX-License-Identifier: MIT */
-/* Copyright (C) 2006-2017 Oracle Corporation */
-
-#ifndef __HGSMI_CHANNELS_H__
-#define __HGSMI_CHANNELS_H__
-
-/*
- * Each channel has an 8 bit identifier. There are a number of predefined
- * (hardcoded) channels.
- *
- * HGSMI_CH_HGSMI channel can be used to map a string channel identifier
- * to a free 16 bit numerical value. values are allocated in range
- * [HGSMI_CH_STRING_FIRST;HGSMI_CH_STRING_LAST].
- */
-
-/* A reserved channel value */
-#define HGSMI_CH_RESERVED 0x00
-/* HGCMI: setup and configuration */
-#define HGSMI_CH_HGSMI 0x01
-/* Graphics: VBVA */
-#define HGSMI_CH_VBVA 0x02
-/* Graphics: Seamless with a single guest region */
-#define HGSMI_CH_SEAMLESS 0x03
-/* Graphics: Seamless with separate host windows */
-#define HGSMI_CH_SEAMLESS2 0x04
-/* Graphics: OpenGL HW acceleration */
-#define HGSMI_CH_OPENGL 0x05
-
-/* The first channel index to be used for string mappings (inclusive) */
-#define HGSMI_CH_STRING_FIRST 0x20
-/* The last channel index for string mappings (inclusive) */
-#define HGSMI_CH_STRING_LAST 0xff
-
-#endif
+++ /dev/null
-/* SPDX-License-Identifier: MIT */
-/* Copyright (C) 2006-2017 Oracle Corporation */
-
-#ifndef __HGSMI_DEFS_H__
-#define __HGSMI_DEFS_H__
-
-/* Buffer sequence type mask. */
-#define HGSMI_BUFFER_HEADER_F_SEQ_MASK 0x03
-/* Single buffer, not a part of a sequence. */
-#define HGSMI_BUFFER_HEADER_F_SEQ_SINGLE 0x00
-/* The first buffer in a sequence. */
-#define HGSMI_BUFFER_HEADER_F_SEQ_START 0x01
-/* A middle buffer in a sequence. */
-#define HGSMI_BUFFER_HEADER_F_SEQ_CONTINUE 0x02
-/* The last buffer in a sequence. */
-#define HGSMI_BUFFER_HEADER_F_SEQ_END 0x03
-
-/* 16 bytes buffer header. */
-struct hgsmi_buffer_header {
- u32 data_size; /* Size of data that follows the header. */
- u8 flags; /* HGSMI_BUFFER_HEADER_F_* */
- u8 channel; /* The channel the data must be routed to. */
- u16 channel_info; /* Opaque to the HGSMI, used by the channel. */
-
- union {
- /* Opaque placeholder to make the union 8 bytes. */
- u8 header_data[8];
-
- /* HGSMI_BUFFER_HEADER_F_SEQ_SINGLE */
- struct {
- u32 reserved1; /* A reserved field, initialize to 0. */
- u32 reserved2; /* A reserved field, initialize to 0. */
- } buffer;
-
- /* HGSMI_BUFFER_HEADER_F_SEQ_START */
- struct {
- /* Must be the same for all buffers in the sequence. */
- u32 sequence_number;
- /* The total size of the sequence. */
- u32 sequence_size;
- } sequence_start;
-
- /*
- * HGSMI_BUFFER_HEADER_F_SEQ_CONTINUE and
- * HGSMI_BUFFER_HEADER_F_SEQ_END
- */
- struct {
- /* Must be the same for all buffers in the sequence. */
- u32 sequence_number;
- /* Data offset in the entire sequence. */
- u32 sequence_offset;
- } sequence_continue;
- } u;
-} __packed;
-
-/* 8 bytes buffer tail. */
-struct hgsmi_buffer_tail {
- /* Reserved, must be initialized to 0. */
- u32 reserved;
- /*
- * One-at-a-Time Hash: http://www.burtleburtle.net/bob/hash/doobs.html
- * Over the header, offset and for first 4 bytes of the tail.
- */
- u32 checksum;
-} __packed;
-
-/*
- * The size of the array of channels. Array indexes are u8.
- * Note: the value must not be changed.
- */
-#define HGSMI_NUMBER_OF_CHANNELS 0x100
-
-#endif
+++ /dev/null
-// SPDX-License-Identifier: MIT
-/* Copyright (C) 2006-2017 Oracle Corporation */
-
-#include <linux/vbox_err.h>
-#include "vbox_drv.h"
-#include "vboxvideo_guest.h"
-#include "vboxvideo_vbe.h"
-#include "hgsmi_channels.h"
-
-/**
- * Set a video mode via an HGSMI request. The views must have been
- * initialised first using @a VBoxHGSMISendViewInfo and if the mode is being
- * set on the first display then it must be set first using registers.
- * @ctx: The context containing the heap to use.
- * @display: The screen number.
- * @origin_x: The horizontal displacement relative to the first scrn.
- * @origin_y: The vertical displacement relative to the first screen.
- * @start_offset: The offset of the visible area of the framebuffer
- * relative to the framebuffer start.
- * @pitch: The offset in bytes between the starts of two adjecent
- * scan lines in video RAM.
- * @width: The mode width.
- * @height: The mode height.
- * @bpp: The colour depth of the mode.
- * @flags: Flags.
- */
-void hgsmi_process_display_info(struct gen_pool *ctx, u32 display,
- s32 origin_x, s32 origin_y, u32 start_offset,
- u32 pitch, u32 width, u32 height,
- u16 bpp, u16 flags)
-{
- struct vbva_infoscreen *p;
-
- p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA,
- VBVA_INFO_SCREEN);
- if (!p)
- return;
-
- p->view_index = display;
- p->origin_x = origin_x;
- p->origin_y = origin_y;
- p->start_offset = start_offset;
- p->line_size = pitch;
- p->width = width;
- p->height = height;
- p->bits_per_pixel = bpp;
- p->flags = flags;
-
- hgsmi_buffer_submit(ctx, p);
- hgsmi_buffer_free(ctx, p);
-}
-
-/**
- * Report the rectangle relative to which absolute pointer events should be
- * expressed. This information remains valid until the next VBVA resize event
- * for any screen, at which time it is reset to the bounding rectangle of all
- * virtual screens.
- * Return: 0 or negative errno value.
- * @ctx: The context containing the heap to use.
- * @origin_x: Upper left X co-ordinate relative to the first screen.
- * @origin_y: Upper left Y co-ordinate relative to the first screen.
- * @width: Rectangle width.
- * @height: Rectangle height.
- */
-int hgsmi_update_input_mapping(struct gen_pool *ctx, s32 origin_x, s32 origin_y,
- u32 width, u32 height)
-{
- struct vbva_report_input_mapping *p;
-
- p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA,
- VBVA_REPORT_INPUT_MAPPING);
- if (!p)
- return -ENOMEM;
-
- p->x = origin_x;
- p->y = origin_y;
- p->cx = width;
- p->cy = height;
-
- hgsmi_buffer_submit(ctx, p);
- hgsmi_buffer_free(ctx, p);
-
- return 0;
-}
-
-/**
- * Get most recent video mode hints.
- * Return: 0 or negative errno value.
- * @ctx: The context containing the heap to use.
- * @screens: The number of screens to query hints for, starting at 0.
- * @hints: Array of vbva_modehint structures for receiving the hints.
- */
-int hgsmi_get_mode_hints(struct gen_pool *ctx, unsigned int screens,
- struct vbva_modehint *hints)
-{
- struct vbva_query_mode_hints *p;
- size_t size;
-
- if (WARN_ON(!hints))
- return -EINVAL;
-
- size = screens * sizeof(struct vbva_modehint);
- p = hgsmi_buffer_alloc(ctx, sizeof(*p) + size, HGSMI_CH_VBVA,
- VBVA_QUERY_MODE_HINTS);
- if (!p)
- return -ENOMEM;
-
- p->hints_queried_count = screens;
- p->hint_structure_guest_size = sizeof(struct vbva_modehint);
- p->rc = VERR_NOT_SUPPORTED;
-
- hgsmi_buffer_submit(ctx, p);
-
- if (p->rc < 0) {
- hgsmi_buffer_free(ctx, p);
- return -EIO;
- }
-
- memcpy(hints, ((u8 *)p) + sizeof(struct vbva_query_mode_hints), size);
- hgsmi_buffer_free(ctx, p);
-
- return 0;
-}
+++ /dev/null
-// SPDX-License-Identifier: MIT
-/*
- * Copyright (C) 2013-2017 Oracle Corporation
- * This file is based on ast_drv.c
- * Copyright 2012 Red Hat Inc.
- * Authors: Dave Airlie <airlied@redhat.com>
- * Michael Thayer <michael.thayer@oracle.com,
- * Hans de Goede <hdegoede@redhat.com>
- */
-#include <linux/console.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/vt_kern.h>
-
-#include <drm/drm_crtc_helper.h>
-#include <drm/drm_drv.h>
-#include <drm/drm_file.h>
-#include <drm/drm_ioctl.h>
-
-#include "vbox_drv.h"
-
-static int vbox_modeset = -1;
-
-MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
-module_param_named(modeset, vbox_modeset, int, 0400);
-
-static struct drm_driver driver;
-
-static const struct pci_device_id pciidlist[] = {
- { PCI_DEVICE(0x80ee, 0xbeef) },
- { }
-};
-MODULE_DEVICE_TABLE(pci, pciidlist);
-
-static struct drm_fb_helper_funcs vbox_fb_helper_funcs = {
- .fb_probe = vboxfb_create,
-};
-
-static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- struct vbox_private *vbox;
- int ret = 0;
-
- if (!vbox_check_supported(VBE_DISPI_ID_HGSMI))
- return -ENODEV;
-
- vbox = kzalloc(sizeof(*vbox), GFP_KERNEL);
- if (!vbox)
- return -ENOMEM;
-
- ret = drm_dev_init(&vbox->ddev, &driver, &pdev->dev);
- if (ret) {
- kfree(vbox);
- return ret;
- }
-
- vbox->ddev.pdev = pdev;
- vbox->ddev.dev_private = vbox;
- pci_set_drvdata(pdev, vbox);
- mutex_init(&vbox->hw_mutex);
-
- ret = pci_enable_device(pdev);
- if (ret)
- goto err_dev_put;
-
- ret = vbox_hw_init(vbox);
- if (ret)
- goto err_pci_disable;
-
- ret = vbox_mm_init(vbox);
- if (ret)
- goto err_hw_fini;
-
- ret = vbox_mode_init(vbox);
- if (ret)
- goto err_mm_fini;
-
- ret = vbox_irq_init(vbox);
- if (ret)
- goto err_mode_fini;
-
- ret = drm_fb_helper_fbdev_setup(&vbox->ddev, &vbox->fb_helper,
- &vbox_fb_helper_funcs, 32,
- vbox->num_crtcs);
- if (ret)
- goto err_irq_fini;
-
- ret = drm_dev_register(&vbox->ddev, 0);
- if (ret)
- goto err_fbdev_fini;
-
- return 0;
-
-err_fbdev_fini:
- vbox_fbdev_fini(vbox);
-err_irq_fini:
- vbox_irq_fini(vbox);
-err_mode_fini:
- vbox_mode_fini(vbox);
-err_mm_fini:
- vbox_mm_fini(vbox);
-err_hw_fini:
- vbox_hw_fini(vbox);
-err_pci_disable:
- pci_disable_device(pdev);
-err_dev_put:
- drm_dev_put(&vbox->ddev);
- return ret;
-}
-
-static void vbox_pci_remove(struct pci_dev *pdev)
-{
- struct vbox_private *vbox = pci_get_drvdata(pdev);
-
- drm_dev_unregister(&vbox->ddev);
- vbox_fbdev_fini(vbox);
- vbox_irq_fini(vbox);
- vbox_mode_fini(vbox);
- vbox_mm_fini(vbox);
- vbox_hw_fini(vbox);
- drm_dev_put(&vbox->ddev);
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int vbox_pm_suspend(struct device *dev)
-{
- struct vbox_private *vbox = dev_get_drvdata(dev);
- int error;
-
- error = drm_mode_config_helper_suspend(&vbox->ddev);
- if (error)
- return error;
-
- pci_save_state(vbox->ddev.pdev);
- pci_disable_device(vbox->ddev.pdev);
- pci_set_power_state(vbox->ddev.pdev, PCI_D3hot);
-
- return 0;
-}
-
-static int vbox_pm_resume(struct device *dev)
-{
- struct vbox_private *vbox = dev_get_drvdata(dev);
-
- if (pci_enable_device(vbox->ddev.pdev))
- return -EIO;
-
- return drm_mode_config_helper_resume(&vbox->ddev);
-}
-
-static int vbox_pm_freeze(struct device *dev)
-{
- struct vbox_private *vbox = dev_get_drvdata(dev);
-
- return drm_mode_config_helper_suspend(&vbox->ddev);
-}
-
-static int vbox_pm_thaw(struct device *dev)
-{
- struct vbox_private *vbox = dev_get_drvdata(dev);
-
- return drm_mode_config_helper_resume(&vbox->ddev);
-}
-
-static int vbox_pm_poweroff(struct device *dev)
-{
- struct vbox_private *vbox = dev_get_drvdata(dev);
-
- return drm_mode_config_helper_suspend(&vbox->ddev);
-}
-
-static const struct dev_pm_ops vbox_pm_ops = {
- .suspend = vbox_pm_suspend,
- .resume = vbox_pm_resume,
- .freeze = vbox_pm_freeze,
- .thaw = vbox_pm_thaw,
- .poweroff = vbox_pm_poweroff,
- .restore = vbox_pm_resume,
-};
-#endif
-
-static struct pci_driver vbox_pci_driver = {
- .name = DRIVER_NAME,
- .id_table = pciidlist,
- .probe = vbox_pci_probe,
- .remove = vbox_pci_remove,
-#ifdef CONFIG_PM_SLEEP
- .driver.pm = &vbox_pm_ops,
-#endif
-};
-
-static const struct file_operations vbox_fops = {
- .owner = THIS_MODULE,
- .open = drm_open,
- .release = drm_release,
- .unlocked_ioctl = drm_ioctl,
- .compat_ioctl = drm_compat_ioctl,
- .mmap = vbox_mmap,
- .poll = drm_poll,
- .read = drm_read,
-};
-
-static struct drm_driver driver = {
- .driver_features =
- DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_ATOMIC,
-
- .lastclose = drm_fb_helper_lastclose,
-
- .fops = &vbox_fops,
- .irq_handler = vbox_irq_handler,
- .name = DRIVER_NAME,
- .desc = DRIVER_DESC,
- .date = DRIVER_DATE,
- .major = DRIVER_MAJOR,
- .minor = DRIVER_MINOR,
- .patchlevel = DRIVER_PATCHLEVEL,
-
- .gem_free_object_unlocked = vbox_gem_free_object,
- .dumb_create = vbox_dumb_create,
- .dumb_map_offset = vbox_dumb_mmap_offset,
- .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
- .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
- .gem_prime_export = drm_gem_prime_export,
- .gem_prime_import = drm_gem_prime_import,
- .gem_prime_pin = vbox_gem_prime_pin,
- .gem_prime_unpin = vbox_gem_prime_unpin,
- .gem_prime_get_sg_table = vbox_gem_prime_get_sg_table,
- .gem_prime_import_sg_table = vbox_gem_prime_import_sg_table,
- .gem_prime_vmap = vbox_gem_prime_vmap,
- .gem_prime_vunmap = vbox_gem_prime_vunmap,
- .gem_prime_mmap = vbox_gem_prime_mmap,
-};
-
-static int __init vbox_init(void)
-{
-#ifdef CONFIG_VGA_CONSOLE
- if (vgacon_text_force() && vbox_modeset == -1)
- return -EINVAL;
-#endif
-
- if (vbox_modeset == 0)
- return -EINVAL;
-
- return pci_register_driver(&vbox_pci_driver);
-}
-
-static void __exit vbox_exit(void)
-{
- pci_unregister_driver(&vbox_pci_driver);
-}
-
-module_init(vbox_init);
-module_exit(vbox_exit);
-
-MODULE_AUTHOR("Oracle Corporation");
-MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL and additional rights");
+++ /dev/null
-/* SPDX-License-Identifier: MIT */
-/*
- * Copyright (C) 2013-2017 Oracle Corporation
- * This file is based on ast_drv.h
- * Copyright 2012 Red Hat Inc.
- * Authors: Dave Airlie <airlied@redhat.com>
- * Michael Thayer <michael.thayer@oracle.com,
- * Hans de Goede <hdegoede@redhat.com>
- */
-#ifndef __VBOX_DRV_H__
-#define __VBOX_DRV_H__
-
-#include <linux/genalloc.h>
-#include <linux/io.h>
-#include <linux/irqreturn.h>
-#include <linux/string.h>
-#include <linux/version.h>
-
-#include <drm/drm_encoder.h>
-#include <drm/drm_fb_helper.h>
-#include <drm/drm_gem.h>
-
-#include <drm/ttm/ttm_bo_api.h>
-#include <drm/ttm/ttm_bo_driver.h>
-#include <drm/ttm/ttm_placement.h>
-#include <drm/ttm/ttm_memory.h>
-#include <drm/ttm/ttm_module.h>
-
-#include "vboxvideo_guest.h"
-#include "vboxvideo_vbe.h"
-#include "hgsmi_ch_setup.h"
-
-#define DRIVER_NAME "vboxvideo"
-#define DRIVER_DESC "Oracle VM VirtualBox Graphics Card"
-#define DRIVER_DATE "20130823"
-
-#define DRIVER_MAJOR 1
-#define DRIVER_MINOR 0
-#define DRIVER_PATCHLEVEL 0
-
-#define VBOX_MAX_CURSOR_WIDTH 64
-#define VBOX_MAX_CURSOR_HEIGHT 64
-#define CURSOR_PIXEL_COUNT (VBOX_MAX_CURSOR_WIDTH * VBOX_MAX_CURSOR_HEIGHT)
-#define CURSOR_DATA_SIZE (CURSOR_PIXEL_COUNT * 4 + CURSOR_PIXEL_COUNT / 8)
-
-#define VBOX_MAX_SCREENS 32
-
-#define GUEST_HEAP_OFFSET(vbox) ((vbox)->full_vram_size - \
- VBVA_ADAPTER_INFORMATION_SIZE)
-#define GUEST_HEAP_SIZE VBVA_ADAPTER_INFORMATION_SIZE
-#define GUEST_HEAP_USABLE_SIZE (VBVA_ADAPTER_INFORMATION_SIZE - \
- sizeof(struct hgsmi_host_flags))
-#define HOST_FLAGS_OFFSET GUEST_HEAP_USABLE_SIZE
-
-struct vbox_framebuffer {
- struct drm_framebuffer base;
- struct drm_gem_object *obj;
-};
-
-struct vbox_private {
- /* Must be first; or we must define our own release callback */
- struct drm_device ddev;
- struct drm_fb_helper fb_helper;
- struct vbox_framebuffer afb;
-
- u8 __iomem *guest_heap;
- u8 __iomem *vbva_buffers;
- struct gen_pool *guest_pool;
- struct vbva_buf_ctx *vbva_info;
- bool any_pitch;
- u32 num_crtcs;
- /* Amount of available VRAM, including space used for buffers. */
- u32 full_vram_size;
- /* Amount of available VRAM, not including space used for buffers. */
- u32 available_vram_size;
- /* Array of structures for receiving mode hints. */
- struct vbva_modehint *last_mode_hints;
-
- int fb_mtrr;
-
- struct {
- struct ttm_bo_device bdev;
- } ttm;
-
- struct mutex hw_mutex; /* protects modeset and accel/vbva accesses */
- struct work_struct hotplug_work;
- u32 input_mapping_width;
- u32 input_mapping_height;
- /*
- * Is user-space using an X.Org-style layout of one large frame-buffer
- * encompassing all screen ones or is the fbdev console active?
- */
- bool single_framebuffer;
- u8 cursor_data[CURSOR_DATA_SIZE];
-};
-
-#undef CURSOR_PIXEL_COUNT
-#undef CURSOR_DATA_SIZE
-
-struct vbox_gem_object;
-
-struct vbox_connector {
- struct drm_connector base;
- char name[32];
- struct vbox_crtc *vbox_crtc;
- struct {
- u32 width;
- u32 height;
- bool disconnected;
- } mode_hint;
-};
-
-struct vbox_crtc {
- struct drm_crtc base;
- bool disconnected;
- unsigned int crtc_id;
- u32 fb_offset;
- bool cursor_enabled;
- u32 x_hint;
- u32 y_hint;
- /*
- * When setting a mode we not only pass the mode to the hypervisor,
- * but also information on how to map / translate input coordinates
- * for the emulated USB tablet. This input-mapping may change when
- * the mode on *another* crtc changes.
- *
- * This means that sometimes we must do a modeset on other crtc-s then
- * the one being changed to update the input-mapping. Including crtc-s
- * which may be disabled inside the guest (shown as a black window
- * on the host unless closed by the user).
- *
- * With atomic modesetting the mode-info of disabled crtcs gets zeroed
- * yet we need it when updating the input-map to avoid resizing the
- * window as a side effect of a mode_set on another crtc. Therefor we
- * cache the info of the last mode below.
- */
- u32 width;
- u32 height;
- u32 x;
- u32 y;
-};
-
-struct vbox_encoder {
- struct drm_encoder base;
-};
-
-#define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
-#define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
-#define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
-#define to_vbox_framebuffer(x) container_of(x, struct vbox_framebuffer, base)
-
-bool vbox_check_supported(u16 id);
-int vbox_hw_init(struct vbox_private *vbox);
-void vbox_hw_fini(struct vbox_private *vbox);
-
-int vbox_mode_init(struct vbox_private *vbox);
-void vbox_mode_fini(struct vbox_private *vbox);
-
-void vbox_report_caps(struct vbox_private *vbox);
-
-void vbox_framebuffer_dirty_rectangles(struct drm_framebuffer *fb,
- struct drm_clip_rect *rects,
- unsigned int num_rects);
-
-int vbox_framebuffer_init(struct vbox_private *vbox,
- struct vbox_framebuffer *vbox_fb,
- const struct drm_mode_fb_cmd2 *mode_cmd,
- struct drm_gem_object *obj);
-
-int vboxfb_create(struct drm_fb_helper *helper,
- struct drm_fb_helper_surface_size *sizes);
-void vbox_fbdev_fini(struct vbox_private *vbox);
-
-struct vbox_bo {
- struct ttm_buffer_object bo;
- struct ttm_placement placement;
- struct ttm_bo_kmap_obj kmap;
- struct drm_gem_object gem;
- struct ttm_place placements[3];
- int pin_count;
-};
-
-#define gem_to_vbox_bo(gobj) container_of((gobj), struct vbox_bo, gem)
-
-static inline struct vbox_bo *vbox_bo(struct ttm_buffer_object *bo)
-{
- return container_of(bo, struct vbox_bo, bo);
-}
-
-#define to_vbox_obj(x) container_of(x, struct vbox_gem_object, base)
-
-static inline u64 vbox_bo_gpu_offset(struct vbox_bo *bo)
-{
- return bo->bo.offset;
-}
-
-int vbox_dumb_create(struct drm_file *file,
- struct drm_device *dev,
- struct drm_mode_create_dumb *args);
-
-void vbox_gem_free_object(struct drm_gem_object *obj);
-int vbox_dumb_mmap_offset(struct drm_file *file,
- struct drm_device *dev,
- u32 handle, u64 *offset);
-
-#define DRM_FILE_PAGE_OFFSET (0x10000000ULL >> PAGE_SHIFT)
-
-int vbox_mm_init(struct vbox_private *vbox);
-void vbox_mm_fini(struct vbox_private *vbox);
-
-int vbox_bo_create(struct vbox_private *vbox, int size, int align,
- u32 flags, struct vbox_bo **pvboxbo);
-
-int vbox_gem_create(struct vbox_private *vbox,
- u32 size, bool iskernel, struct drm_gem_object **obj);
-
-int vbox_bo_pin(struct vbox_bo *bo, u32 pl_flag);
-int vbox_bo_unpin(struct vbox_bo *bo);
-
-static inline int vbox_bo_reserve(struct vbox_bo *bo, bool no_wait)
-{
- int ret;
-
- ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL);
- if (ret) {
- if (ret != -ERESTARTSYS && ret != -EBUSY)
- DRM_ERROR("reserve failed %p\n", bo);
- return ret;
- }
- return 0;
-}
-
-static inline void vbox_bo_unreserve(struct vbox_bo *bo)
-{
- ttm_bo_unreserve(&bo->bo);
-}
-
-void vbox_ttm_placement(struct vbox_bo *bo, int domain);
-int vbox_bo_push_sysram(struct vbox_bo *bo);
-int vbox_mmap(struct file *filp, struct vm_area_struct *vma);
-void *vbox_bo_kmap(struct vbox_bo *bo);
-void vbox_bo_kunmap(struct vbox_bo *bo);
-
-/* vbox_prime.c */
-int vbox_gem_prime_pin(struct drm_gem_object *obj);
-void vbox_gem_prime_unpin(struct drm_gem_object *obj);
-struct sg_table *vbox_gem_prime_get_sg_table(struct drm_gem_object *obj);
-struct drm_gem_object *vbox_gem_prime_import_sg_table(
- struct drm_device *dev, struct dma_buf_attachment *attach,
- struct sg_table *table);
-void *vbox_gem_prime_vmap(struct drm_gem_object *obj);
-void vbox_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
-int vbox_gem_prime_mmap(struct drm_gem_object *obj,
- struct vm_area_struct *area);
-
-/* vbox_irq.c */
-int vbox_irq_init(struct vbox_private *vbox);
-void vbox_irq_fini(struct vbox_private *vbox);
-void vbox_report_hotplug(struct vbox_private *vbox);
-irqreturn_t vbox_irq_handler(int irq, void *arg);
-
-/* vbox_hgsmi.c */
-void *hgsmi_buffer_alloc(struct gen_pool *guest_pool, size_t size,
- u8 channel, u16 channel_info);
-void hgsmi_buffer_free(struct gen_pool *guest_pool, void *buf);
-int hgsmi_buffer_submit(struct gen_pool *guest_pool, void *buf);
-
-static inline void vbox_write_ioport(u16 index, u16 data)
-{
- outw(index, VBE_DISPI_IOPORT_INDEX);
- outw(data, VBE_DISPI_IOPORT_DATA);
-}
-
-#endif
+++ /dev/null
-// SPDX-License-Identifier: MIT
-/*
- * Copyright (C) 2013-2017 Oracle Corporation
- * This file is based on ast_fb.c
- * Copyright 2012 Red Hat Inc.
- * Authors: Dave Airlie <airlied@redhat.com>
- * Michael Thayer <michael.thayer@oracle.com,
- */
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/string.h>
-#include <linux/sysrq.h>
-#include <linux/tty.h>
-
-#include <drm/drm_crtc.h>
-#include <drm/drm_crtc_helper.h>
-#include <drm/drm_fb_helper.h>
-#include <drm/drm_fourcc.h>
-
-#include "vbox_drv.h"
-#include "vboxvideo.h"
-
-#ifdef CONFIG_DRM_KMS_FB_HELPER
-static struct fb_deferred_io vbox_defio = {
- .delay = HZ / 30,
- .deferred_io = drm_fb_helper_deferred_io,
-};
-#endif
-
-static struct fb_ops vboxfb_ops = {
- .owner = THIS_MODULE,
- DRM_FB_HELPER_DEFAULT_OPS,
- .fb_fillrect = drm_fb_helper_sys_fillrect,
- .fb_copyarea = drm_fb_helper_sys_copyarea,
- .fb_imageblit = drm_fb_helper_sys_imageblit,
-};
-
-int vboxfb_create(struct drm_fb_helper *helper,
- struct drm_fb_helper_surface_size *sizes)
-{
- struct vbox_private *vbox =
- container_of(helper, struct vbox_private, fb_helper);
- struct pci_dev *pdev = vbox->ddev.pdev;
- struct drm_mode_fb_cmd2 mode_cmd;
- struct drm_framebuffer *fb;
- struct fb_info *info;
- struct drm_gem_object *gobj;
- struct vbox_bo *bo;
- int size, ret;
- u64 gpu_addr;
- u32 pitch;
-
- mode_cmd.width = sizes->surface_width;
- mode_cmd.height = sizes->surface_height;
- pitch = mode_cmd.width * ((sizes->surface_bpp + 7) / 8);
- mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
- sizes->surface_depth);
- mode_cmd.pitches[0] = pitch;
-
- size = pitch * mode_cmd.height;
-
- ret = vbox_gem_create(vbox, size, true, &gobj);
- if (ret) {
- DRM_ERROR("failed to create fbcon backing object %d\n", ret);
- return ret;
- }
-
- ret = vbox_framebuffer_init(vbox, &vbox->afb, &mode_cmd, gobj);
- if (ret)
- return ret;
-
- bo = gem_to_vbox_bo(gobj);
-
- ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM);
- if (ret)
- return ret;
-
- info = drm_fb_helper_alloc_fbi(helper);
- if (IS_ERR(info))
- return PTR_ERR(info);
-
- info->screen_size = size;
- info->screen_base = (char __iomem *)vbox_bo_kmap(bo);
- if (IS_ERR(info->screen_base))
- return PTR_ERR(info->screen_base);
-
- info->par = helper;
-
- fb = &vbox->afb.base;
- helper->fb = fb;
-
- strcpy(info->fix.id, "vboxdrmfb");
-
- info->fbops = &vboxfb_ops;
-
- /*
- * This seems to be done for safety checking that the framebuffer
- * is not registered twice by different drivers.
- */
- info->apertures->ranges[0].base = pci_resource_start(pdev, 0);
- info->apertures->ranges[0].size = pci_resource_len(pdev, 0);
-
- drm_fb_helper_fill_fix(info, fb->pitches[0], fb->format->depth);
- drm_fb_helper_fill_var(info, helper, sizes->fb_width,
- sizes->fb_height);
-
- gpu_addr = vbox_bo_gpu_offset(bo);
- info->fix.smem_start = info->apertures->ranges[0].base + gpu_addr;
- info->fix.smem_len = vbox->available_vram_size - gpu_addr;
-
-#ifdef CONFIG_DRM_KMS_FB_HELPER
- info->fbdefio = &vbox_defio;
- fb_deferred_io_init(info);
-#endif
-
- info->pixmap.flags = FB_PIXMAP_SYSTEM;
-
- DRM_DEBUG_KMS("allocated %dx%d\n", fb->width, fb->height);
-
- return 0;
-}
-
-void vbox_fbdev_fini(struct vbox_private *vbox)
-{
- struct vbox_framebuffer *afb = &vbox->afb;
-
-#ifdef CONFIG_DRM_KMS_FB_HELPER
- if (vbox->fb_helper.fbdev && vbox->fb_helper.fbdev->fbdefio)
- fb_deferred_io_cleanup(vbox->fb_helper.fbdev);
-#endif
-
- drm_fb_helper_unregister_fbi(&vbox->fb_helper);
-
- if (afb->obj) {
- struct vbox_bo *bo = gem_to_vbox_bo(afb->obj);
-
- vbox_bo_kunmap(bo);
-
- if (bo->pin_count)
- vbox_bo_unpin(bo);
-
- drm_gem_object_put_unlocked(afb->obj);
- afb->obj = NULL;
- }
- drm_fb_helper_fini(&vbox->fb_helper);
-
- drm_framebuffer_unregister_private(&afb->base);
- drm_framebuffer_cleanup(&afb->base);
-}
+++ /dev/null
-// SPDX-License-Identifier: MIT
-/*
- * Copyright (C) 2017 Oracle Corporation
- * Authors: Hans de Goede <hdegoede@redhat.com>
- */
-
-#include "vbox_drv.h"
-#include "vboxvideo_vbe.h"
-#include "hgsmi_defs.h"
-
-/* One-at-a-Time Hash from http://www.burtleburtle.net/bob/hash/doobs.html */
-static u32 hgsmi_hash_process(u32 hash, const u8 *data, int size)
-{
- while (size--) {
- hash += *data++;
- hash += (hash << 10);
- hash ^= (hash >> 6);
- }
-
- return hash;
-}
-
-static u32 hgsmi_hash_end(u32 hash)
-{
- hash += (hash << 3);
- hash ^= (hash >> 11);
- hash += (hash << 15);
-
- return hash;
-}
-
-/* Not really a checksum but that is the naming used in all vbox code */
-static u32 hgsmi_checksum(u32 offset,
- const struct hgsmi_buffer_header *header,
- const struct hgsmi_buffer_tail *tail)
-{
- u32 checksum;
-
- checksum = hgsmi_hash_process(0, (u8 *)&offset, sizeof(offset));
- checksum = hgsmi_hash_process(checksum, (u8 *)header, sizeof(*header));
- /* 4 -> Do not checksum the checksum itself */
- checksum = hgsmi_hash_process(checksum, (u8 *)tail, 4);
-
- return hgsmi_hash_end(checksum);
-}
-
-void *hgsmi_buffer_alloc(struct gen_pool *guest_pool, size_t size,
- u8 channel, u16 channel_info)
-{
- struct hgsmi_buffer_header *h;
- struct hgsmi_buffer_tail *t;
- size_t total_size;
- dma_addr_t offset;
-
- total_size = size + sizeof(*h) + sizeof(*t);
- h = gen_pool_dma_alloc(guest_pool, total_size, &offset);
- if (!h)
- return NULL;
-
- t = (struct hgsmi_buffer_tail *)((u8 *)h + sizeof(*h) + size);
-
- h->flags = HGSMI_BUFFER_HEADER_F_SEQ_SINGLE;
- h->data_size = size;
- h->channel = channel;
- h->channel_info = channel_info;
- memset(&h->u.header_data, 0, sizeof(h->u.header_data));
-
- t->reserved = 0;
- t->checksum = hgsmi_checksum(offset, h, t);
-
- return (u8 *)h + sizeof(*h);
-}
-
-void hgsmi_buffer_free(struct gen_pool *guest_pool, void *buf)
-{
- struct hgsmi_buffer_header *h =
- (struct hgsmi_buffer_header *)((u8 *)buf - sizeof(*h));
- size_t total_size = h->data_size + sizeof(*h) +
- sizeof(struct hgsmi_buffer_tail);
-
- gen_pool_free(guest_pool, (unsigned long)h, total_size);
-}
-
-int hgsmi_buffer_submit(struct gen_pool *guest_pool, void *buf)
-{
- phys_addr_t offset;
-
- offset = gen_pool_virt_to_phys(guest_pool, (unsigned long)buf -
- sizeof(struct hgsmi_buffer_header));
- outl(offset, VGA_PORT_HGSMI_GUEST);
- /* Make the compiler aware that the host has changed memory. */
- mb();
-
- return 0;
-}
+++ /dev/null
-// SPDX-License-Identifier: MIT
-/*
- * Copyright (C) 2016-2017 Oracle Corporation
- * This file is based on qxl_irq.c
- * Copyright 2013 Red Hat Inc.
- * Authors: Dave Airlie
- * Alon Levy
- * Michael Thayer <michael.thayer@oracle.com,
- * Hans de Goede <hdegoede@redhat.com>
- */
-
-#include <linux/pci.h>
-#include <drm/drm_irq.h>
-#include <drm/drm_probe_helper.h>
-
-#include "vbox_drv.h"
-#include "vboxvideo.h"
-
-static void vbox_clear_irq(void)
-{
- outl((u32)~0, VGA_PORT_HGSMI_HOST);
-}
-
-static u32 vbox_get_flags(struct vbox_private *vbox)
-{
- return readl(vbox->guest_heap + HOST_FLAGS_OFFSET);
-}
-
-void vbox_report_hotplug(struct vbox_private *vbox)
-{
- schedule_work(&vbox->hotplug_work);
-}
-
-irqreturn_t vbox_irq_handler(int irq, void *arg)
-{
- struct drm_device *dev = (struct drm_device *)arg;
- struct vbox_private *vbox = (struct vbox_private *)dev->dev_private;
- u32 host_flags = vbox_get_flags(vbox);
-
- if (!(host_flags & HGSMIHOSTFLAGS_IRQ))
- return IRQ_NONE;
-
- /*
- * Due to a bug in the initial host implementation of hot-plug irqs,
- * the hot-plug and cursor capability flags were never cleared.
- * Fortunately we can tell when they would have been set by checking
- * that the VSYNC flag is not set.
- */
- if (host_flags &
- (HGSMIHOSTFLAGS_HOTPLUG | HGSMIHOSTFLAGS_CURSOR_CAPABILITIES) &&
- !(host_flags & HGSMIHOSTFLAGS_VSYNC))
- vbox_report_hotplug(vbox);
-
- vbox_clear_irq();
-
- return IRQ_HANDLED;
-}
-
-/*
- * Check that the position hints provided by the host are suitable for GNOME
- * shell (i.e. all screens disjoint and hints for all enabled screens) and if
- * not replace them with default ones. Providing valid hints improves the
- * chances that we will get a known screen layout for pointer mapping.
- */
-static void validate_or_set_position_hints(struct vbox_private *vbox)
-{
- struct vbva_modehint *hintsi, *hintsj;
- bool valid = true;
- u16 currentx = 0;
- int i, j;
-
- for (i = 0; i < vbox->num_crtcs; ++i) {
- for (j = 0; j < i; ++j) {
- hintsi = &vbox->last_mode_hints[i];
- hintsj = &vbox->last_mode_hints[j];
-
- if (hintsi->enabled && hintsj->enabled) {
- if (hintsi->dx >= 0xffff ||
- hintsi->dy >= 0xffff ||
- hintsj->dx >= 0xffff ||
- hintsj->dy >= 0xffff ||
- (hintsi->dx <
- hintsj->dx + (hintsj->cx & 0x8fff) &&
- hintsi->dx + (hintsi->cx & 0x8fff) >
- hintsj->dx) ||
- (hintsi->dy <
- hintsj->dy + (hintsj->cy & 0x8fff) &&
- hintsi->dy + (hintsi->cy & 0x8fff) >
- hintsj->dy))
- valid = false;
- }
- }
- }
- if (!valid)
- for (i = 0; i < vbox->num_crtcs; ++i) {
- if (vbox->last_mode_hints[i].enabled) {
- vbox->last_mode_hints[i].dx = currentx;
- vbox->last_mode_hints[i].dy = 0;
- currentx +=
- vbox->last_mode_hints[i].cx & 0x8fff;
- }
- }
-}
-
-/* Query the host for the most recent video mode hints. */
-static void vbox_update_mode_hints(struct vbox_private *vbox)
-{
- struct drm_connector_list_iter conn_iter;
- struct drm_device *dev = &vbox->ddev;
- struct drm_connector *connector;
- struct vbox_connector *vbox_conn;
- struct vbva_modehint *hints;
- u16 flags;
- bool disconnected;
- unsigned int crtc_id;
- int ret;
-
- ret = hgsmi_get_mode_hints(vbox->guest_pool, vbox->num_crtcs,
- vbox->last_mode_hints);
- if (ret) {
- DRM_ERROR("vboxvideo: hgsmi_get_mode_hints failed: %d\n", ret);
- return;
- }
-
- validate_or_set_position_hints(vbox);
-
- drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
- drm_connector_list_iter_begin(dev, &conn_iter);
- drm_for_each_connector_iter(connector, &conn_iter) {
- vbox_conn = to_vbox_connector(connector);
-
- hints = &vbox->last_mode_hints[vbox_conn->vbox_crtc->crtc_id];
- if (hints->magic != VBVAMODEHINT_MAGIC)
- continue;
-
- disconnected = !(hints->enabled);
- crtc_id = vbox_conn->vbox_crtc->crtc_id;
- vbox_conn->mode_hint.width = hints->cx;
- vbox_conn->mode_hint.height = hints->cy;
- vbox_conn->vbox_crtc->x_hint = hints->dx;
- vbox_conn->vbox_crtc->y_hint = hints->dy;
- vbox_conn->mode_hint.disconnected = disconnected;
-
- if (vbox_conn->vbox_crtc->disconnected == disconnected)
- continue;
-
- if (disconnected)
- flags = VBVA_SCREEN_F_ACTIVE | VBVA_SCREEN_F_DISABLED;
- else
- flags = VBVA_SCREEN_F_ACTIVE | VBVA_SCREEN_F_BLANK;
-
- hgsmi_process_display_info(vbox->guest_pool, crtc_id, 0, 0, 0,
- hints->cx * 4, hints->cx,
- hints->cy, 0, flags);
-
- vbox_conn->vbox_crtc->disconnected = disconnected;
- }
- drm_connector_list_iter_end(&conn_iter);
- drm_modeset_unlock(&dev->mode_config.connection_mutex);
-}
-
-static void vbox_hotplug_worker(struct work_struct *work)
-{
- struct vbox_private *vbox = container_of(work, struct vbox_private,
- hotplug_work);
-
- vbox_update_mode_hints(vbox);
- drm_kms_helper_hotplug_event(&vbox->ddev);
-}
-
-int vbox_irq_init(struct vbox_private *vbox)
-{
- INIT_WORK(&vbox->hotplug_work, vbox_hotplug_worker);
- vbox_update_mode_hints(vbox);
-
- return drm_irq_install(&vbox->ddev, vbox->ddev.pdev->irq);
-}
-
-void vbox_irq_fini(struct vbox_private *vbox)
-{
- drm_irq_uninstall(&vbox->ddev);
- flush_work(&vbox->hotplug_work);
-}
+++ /dev/null
-// SPDX-License-Identifier: MIT
-/*
- * Copyright (C) 2013-2017 Oracle Corporation
- * This file is based on ast_main.c
- * Copyright 2012 Red Hat Inc.
- * Authors: Dave Airlie <airlied@redhat.com>,
- * Michael Thayer <michael.thayer@oracle.com,
- * Hans de Goede <hdegoede@redhat.com>
- */
-
-#include <linux/vbox_err.h>
-#include <drm/drm_fb_helper.h>
-#include <drm/drm_crtc_helper.h>
-
-#include "vbox_drv.h"
-#include "vboxvideo_guest.h"
-#include "vboxvideo_vbe.h"
-
-static void vbox_user_framebuffer_destroy(struct drm_framebuffer *fb)
-{
- struct vbox_framebuffer *vbox_fb = to_vbox_framebuffer(fb);
-
- if (vbox_fb->obj)
- drm_gem_object_put_unlocked(vbox_fb->obj);
-
- drm_framebuffer_cleanup(fb);
- kfree(fb);
-}
-
-void vbox_report_caps(struct vbox_private *vbox)
-{
- u32 caps = VBVACAPS_DISABLE_CURSOR_INTEGRATION |
- VBVACAPS_IRQ | VBVACAPS_USE_VBVA_ONLY;
-
- /* The host only accepts VIDEO_MODE_HINTS if it is send separately. */
- hgsmi_send_caps_info(vbox->guest_pool, caps);
- caps |= VBVACAPS_VIDEO_MODE_HINTS;
- hgsmi_send_caps_info(vbox->guest_pool, caps);
-}
-
-/* Send information about dirty rectangles to VBVA. */
-void vbox_framebuffer_dirty_rectangles(struct drm_framebuffer *fb,
- struct drm_clip_rect *rects,
- unsigned int num_rects)
-{
- struct vbox_private *vbox = fb->dev->dev_private;
- struct drm_display_mode *mode;
- struct drm_crtc *crtc;
- int crtc_x, crtc_y;
- unsigned int i;
-
- mutex_lock(&vbox->hw_mutex);
- list_for_each_entry(crtc, &fb->dev->mode_config.crtc_list, head) {
- if (crtc->primary->state->fb != fb)
- continue;
-
- mode = &crtc->state->mode;
- crtc_x = crtc->primary->state->src_x >> 16;
- crtc_y = crtc->primary->state->src_y >> 16;
-
- for (i = 0; i < num_rects; ++i) {
- struct vbva_cmd_hdr cmd_hdr;
- unsigned int crtc_id = to_vbox_crtc(crtc)->crtc_id;
-
- if (rects[i].x1 > crtc_x + mode->hdisplay ||
- rects[i].y1 > crtc_y + mode->vdisplay ||
- rects[i].x2 < crtc_x ||
- rects[i].y2 < crtc_y)
- continue;
-
- cmd_hdr.x = (s16)rects[i].x1;
- cmd_hdr.y = (s16)rects[i].y1;
- cmd_hdr.w = (u16)rects[i].x2 - rects[i].x1;
- cmd_hdr.h = (u16)rects[i].y2 - rects[i].y1;
-
- if (!vbva_buffer_begin_update(&vbox->vbva_info[crtc_id],
- vbox->guest_pool))
- continue;
-
- vbva_write(&vbox->vbva_info[crtc_id], vbox->guest_pool,
- &cmd_hdr, sizeof(cmd_hdr));
- vbva_buffer_end_update(&vbox->vbva_info[crtc_id]);
- }
- }
- mutex_unlock(&vbox->hw_mutex);
-}
-
-static int vbox_user_framebuffer_dirty(struct drm_framebuffer *fb,
- struct drm_file *file_priv,
- unsigned int flags, unsigned int color,
- struct drm_clip_rect *rects,
- unsigned int num_rects)
-{
- vbox_framebuffer_dirty_rectangles(fb, rects, num_rects);
-
- return 0;
-}
-
-static const struct drm_framebuffer_funcs vbox_fb_funcs = {
- .destroy = vbox_user_framebuffer_destroy,
- .dirty = vbox_user_framebuffer_dirty,
-};
-
-int vbox_framebuffer_init(struct vbox_private *vbox,
- struct vbox_framebuffer *vbox_fb,
- const struct drm_mode_fb_cmd2 *mode_cmd,
- struct drm_gem_object *obj)
-{
- int ret;
-
- drm_helper_mode_fill_fb_struct(&vbox->ddev, &vbox_fb->base, mode_cmd);
- vbox_fb->obj = obj;
- ret = drm_framebuffer_init(&vbox->ddev, &vbox_fb->base, &vbox_fb_funcs);
- if (ret) {
- DRM_ERROR("framebuffer init failed %d\n", ret);
- return ret;
- }
-
- return 0;
-}
-
-static int vbox_accel_init(struct vbox_private *vbox)
-{
- struct vbva_buffer *vbva;
- unsigned int i;
-
- vbox->vbva_info = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
- sizeof(*vbox->vbva_info), GFP_KERNEL);
- if (!vbox->vbva_info)
- return -ENOMEM;
-
- /* Take a command buffer for each screen from the end of usable VRAM. */
- vbox->available_vram_size -= vbox->num_crtcs * VBVA_MIN_BUFFER_SIZE;
-
- vbox->vbva_buffers = pci_iomap_range(vbox->ddev.pdev, 0,
- vbox->available_vram_size,
- vbox->num_crtcs *
- VBVA_MIN_BUFFER_SIZE);
- if (!vbox->vbva_buffers)
- return -ENOMEM;
-
- for (i = 0; i < vbox->num_crtcs; ++i) {
- vbva_setup_buffer_context(&vbox->vbva_info[i],
- vbox->available_vram_size +
- i * VBVA_MIN_BUFFER_SIZE,
- VBVA_MIN_BUFFER_SIZE);
- vbva = (void __force *)vbox->vbva_buffers +
- i * VBVA_MIN_BUFFER_SIZE;
- if (!vbva_enable(&vbox->vbva_info[i],
- vbox->guest_pool, vbva, i)) {
- /* very old host or driver error. */
- DRM_ERROR("vboxvideo: vbva_enable failed\n");
- }
- }
-
- return 0;
-}
-
-static void vbox_accel_fini(struct vbox_private *vbox)
-{
- unsigned int i;
-
- for (i = 0; i < vbox->num_crtcs; ++i)
- vbva_disable(&vbox->vbva_info[i], vbox->guest_pool, i);
-
- pci_iounmap(vbox->ddev.pdev, vbox->vbva_buffers);
-}
-
-/* Do we support the 4.3 plus mode hint reporting interface? */
-static bool have_hgsmi_mode_hints(struct vbox_private *vbox)
-{
- u32 have_hints, have_cursor;
- int ret;
-
- ret = hgsmi_query_conf(vbox->guest_pool,
- VBOX_VBVA_CONF32_MODE_HINT_REPORTING,
- &have_hints);
- if (ret)
- return false;
-
- ret = hgsmi_query_conf(vbox->guest_pool,
- VBOX_VBVA_CONF32_GUEST_CURSOR_REPORTING,
- &have_cursor);
- if (ret)
- return false;
-
- return have_hints == VINF_SUCCESS && have_cursor == VINF_SUCCESS;
-}
-
-bool vbox_check_supported(u16 id)
-{
- u16 dispi_id;
-
- vbox_write_ioport(VBE_DISPI_INDEX_ID, id);
- dispi_id = inw(VBE_DISPI_IOPORT_DATA);
-
- return dispi_id == id;
-}
-
-int vbox_hw_init(struct vbox_private *vbox)
-{
- int ret = -ENOMEM;
-
- vbox->full_vram_size = inl(VBE_DISPI_IOPORT_DATA);
- vbox->any_pitch = vbox_check_supported(VBE_DISPI_ID_ANYX);
-
- DRM_INFO("VRAM %08x\n", vbox->full_vram_size);
-
- /* Map guest-heap at end of vram */
- vbox->guest_heap =
- pci_iomap_range(vbox->ddev.pdev, 0, GUEST_HEAP_OFFSET(vbox),
- GUEST_HEAP_SIZE);
- if (!vbox->guest_heap)
- return -ENOMEM;
-
- /* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
- vbox->guest_pool = gen_pool_create(4, -1);
- if (!vbox->guest_pool)
- goto err_unmap_guest_heap;
-
- ret = gen_pool_add_virt(vbox->guest_pool,
- (unsigned long)vbox->guest_heap,
- GUEST_HEAP_OFFSET(vbox),
- GUEST_HEAP_USABLE_SIZE, -1);
- if (ret)
- goto err_destroy_guest_pool;
-
- ret = hgsmi_test_query_conf(vbox->guest_pool);
- if (ret) {
- DRM_ERROR("vboxvideo: hgsmi_test_query_conf failed\n");
- goto err_destroy_guest_pool;
- }
-
- /* Reduce available VRAM size to reflect the guest heap. */
- vbox->available_vram_size = GUEST_HEAP_OFFSET(vbox);
- /* Linux drm represents monitors as a 32-bit array. */
- hgsmi_query_conf(vbox->guest_pool, VBOX_VBVA_CONF32_MONITOR_COUNT,
- &vbox->num_crtcs);
- vbox->num_crtcs = clamp_t(u32, vbox->num_crtcs, 1, VBOX_MAX_SCREENS);
-
- if (!have_hgsmi_mode_hints(vbox)) {
- ret = -ENOTSUPP;
- goto err_destroy_guest_pool;
- }
-
- vbox->last_mode_hints = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
- sizeof(struct vbva_modehint),
- GFP_KERNEL);
- if (!vbox->last_mode_hints) {
- ret = -ENOMEM;
- goto err_destroy_guest_pool;
- }
-
- ret = vbox_accel_init(vbox);
- if (ret)
- goto err_destroy_guest_pool;
-
- return 0;
-
-err_destroy_guest_pool:
- gen_pool_destroy(vbox->guest_pool);
-err_unmap_guest_heap:
- pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
- return ret;
-}
-
-void vbox_hw_fini(struct vbox_private *vbox)
-{
- vbox_accel_fini(vbox);
- gen_pool_destroy(vbox->guest_pool);
- pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
-}
-
-int vbox_gem_create(struct vbox_private *vbox,
- u32 size, bool iskernel, struct drm_gem_object **obj)
-{
- struct vbox_bo *vboxbo;
- int ret;
-
- *obj = NULL;
-
- size = roundup(size, PAGE_SIZE);
- if (size == 0)
- return -EINVAL;
-
- ret = vbox_bo_create(vbox, size, 0, 0, &vboxbo);
- if (ret) {
- if (ret != -ERESTARTSYS)
- DRM_ERROR("failed to allocate GEM object\n");
- return ret;
- }
-
- *obj = &vboxbo->gem;
-
- return 0;
-}
-
-int vbox_dumb_create(struct drm_file *file,
- struct drm_device *dev, struct drm_mode_create_dumb *args)
-{
- struct vbox_private *vbox =
- container_of(dev, struct vbox_private, ddev);
- struct drm_gem_object *gobj;
- u32 handle;
- int ret;
-
- args->pitch = args->width * ((args->bpp + 7) / 8);
- args->size = args->pitch * args->height;
-
- ret = vbox_gem_create(vbox, args->size, false, &gobj);
- if (ret)
- return ret;
-
- ret = drm_gem_handle_create(file, gobj, &handle);
- drm_gem_object_put_unlocked(gobj);
- if (ret)
- return ret;
-
- args->handle = handle;
-
- return 0;
-}
-
-void vbox_gem_free_object(struct drm_gem_object *obj)
-{
- struct vbox_bo *vbox_bo = gem_to_vbox_bo(obj);
-
- ttm_bo_put(&vbox_bo->bo);
-}
-
-static inline u64 vbox_bo_mmap_offset(struct vbox_bo *bo)
-{
- return drm_vma_node_offset_addr(&bo->bo.vma_node);
-}
-
-int
-vbox_dumb_mmap_offset(struct drm_file *file,
- struct drm_device *dev,
- u32 handle, u64 *offset)
-{
- struct drm_gem_object *obj;
- int ret;
- struct vbox_bo *bo;
-
- mutex_lock(&dev->struct_mutex);
- obj = drm_gem_object_lookup(file, handle);
- if (!obj) {
- ret = -ENOENT;
- goto out_unlock;
- }
-
- bo = gem_to_vbox_bo(obj);
- *offset = vbox_bo_mmap_offset(bo);
-
- drm_gem_object_put(obj);
- ret = 0;
-
-out_unlock:
- mutex_unlock(&dev->struct_mutex);
- return ret;
-}
+++ /dev/null
-// SPDX-License-Identifier: MIT
-/*
- * Copyright (C) 2013-2017 Oracle Corporation
- * This file is based on ast_mode.c
- * Copyright 2012 Red Hat Inc.
- * Parts based on xf86-video-ast
- * Copyright (c) 2005 ASPEED Technology Inc.
- * Authors: Dave Airlie <airlied@redhat.com>
- * Michael Thayer <michael.thayer@oracle.com,
- * Hans de Goede <hdegoede@redhat.com>
- */
-#include <linux/export.h>
-
-#include <drm/drm_atomic.h>
-#include <drm/drm_atomic_helper.h>
-#include <drm/drm_fourcc.h>
-#include <drm/drm_plane_helper.h>
-#include <drm/drm_probe_helper.h>
-#include <drm/drm_vblank.h>
-
-#include "hgsmi_channels.h"
-#include "vbox_drv.h"
-#include "vboxvideo.h"
-
-/*
- * Set a graphics mode. Poke any required values into registers, do an HGSMI
- * mode set and tell the host we support advanced graphics functions.
- */
-static void vbox_do_modeset(struct drm_crtc *crtc)
-{
- struct drm_framebuffer *fb = crtc->primary->state->fb;
- struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
- struct vbox_private *vbox;
- int width, height, bpp, pitch;
- u16 flags;
- s32 x_offset, y_offset;
-
- vbox = crtc->dev->dev_private;
- width = vbox_crtc->width ? vbox_crtc->width : 640;
- height = vbox_crtc->height ? vbox_crtc->height : 480;
- bpp = fb ? fb->format->cpp[0] * 8 : 32;
- pitch = fb ? fb->pitches[0] : width * bpp / 8;
- x_offset = vbox->single_framebuffer ? vbox_crtc->x : vbox_crtc->x_hint;
- y_offset = vbox->single_framebuffer ? vbox_crtc->y : vbox_crtc->y_hint;
-
- /*
- * This is the old way of setting graphics modes. It assumed one screen
- * and a frame-buffer at the start of video RAM. On older versions of
- * VirtualBox, certain parts of the code still assume that the first
- * screen is programmed this way, so try to fake it.
- */
- if (vbox_crtc->crtc_id == 0 && fb &&
- vbox_crtc->fb_offset / pitch < 0xffff - crtc->y &&
- vbox_crtc->fb_offset % (bpp / 8) == 0) {
- vbox_write_ioport(VBE_DISPI_INDEX_XRES, width);
- vbox_write_ioport(VBE_DISPI_INDEX_YRES, height);
- vbox_write_ioport(VBE_DISPI_INDEX_VIRT_WIDTH, pitch * 8 / bpp);
- vbox_write_ioport(VBE_DISPI_INDEX_BPP, bpp);
- vbox_write_ioport(VBE_DISPI_INDEX_ENABLE, VBE_DISPI_ENABLED);
- vbox_write_ioport(
- VBE_DISPI_INDEX_X_OFFSET,
- vbox_crtc->fb_offset % pitch / bpp * 8 + vbox_crtc->x);
- vbox_write_ioport(VBE_DISPI_INDEX_Y_OFFSET,
- vbox_crtc->fb_offset / pitch + vbox_crtc->y);
- }
-
- flags = VBVA_SCREEN_F_ACTIVE;
- flags |= (fb && crtc->state->enable) ? 0 : VBVA_SCREEN_F_BLANK;
- flags |= vbox_crtc->disconnected ? VBVA_SCREEN_F_DISABLED : 0;
- hgsmi_process_display_info(vbox->guest_pool, vbox_crtc->crtc_id,
- x_offset, y_offset,
- vbox_crtc->x * bpp / 8 +
- vbox_crtc->y * pitch,
- pitch, width, height, bpp, flags);
-}
-
-static int vbox_set_view(struct drm_crtc *crtc)
-{
- struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
- struct vbox_private *vbox = crtc->dev->dev_private;
- struct vbva_infoview *p;
-
- /*
- * Tell the host about the view. This design originally targeted the
- * Windows XP driver architecture and assumed that each screen would
- * have a dedicated frame buffer with the command buffer following it,
- * the whole being a "view". The host works out which screen a command
- * buffer belongs to by checking whether it is in the first view, then
- * whether it is in the second and so on. The first match wins. We
- * cheat around this by making the first view be the managed memory
- * plus the first command buffer, the second the same plus the second
- * buffer and so on.
- */
- p = hgsmi_buffer_alloc(vbox->guest_pool, sizeof(*p),
- HGSMI_CH_VBVA, VBVA_INFO_VIEW);
- if (!p)
- return -ENOMEM;
-
- p->view_index = vbox_crtc->crtc_id;
- p->view_offset = vbox_crtc->fb_offset;
- p->view_size = vbox->available_vram_size - vbox_crtc->fb_offset +
- vbox_crtc->crtc_id * VBVA_MIN_BUFFER_SIZE;
- p->max_screen_size = vbox->available_vram_size - vbox_crtc->fb_offset;
-
- hgsmi_buffer_submit(vbox->guest_pool, p);
- hgsmi_buffer_free(vbox->guest_pool, p);
-
- return 0;
-}
-
-/*
- * Try to map the layout of virtual screens to the range of the input device.
- * Return true if we need to re-set the crtc modes due to screen offset
- * changes.
- */
-static bool vbox_set_up_input_mapping(struct vbox_private *vbox)
-{
- struct drm_crtc *crtci;
- struct drm_connector *connectori;
- struct drm_framebuffer *fb, *fb1 = NULL;
- bool single_framebuffer = true;
- bool old_single_framebuffer = vbox->single_framebuffer;
- u16 width = 0, height = 0;
-
- /*
- * Are we using an X.Org-style single large frame-buffer for all crtcs?
- * If so then screen layout can be deduced from the crtc offsets.
- * Same fall-back if this is the fbdev frame-buffer.
- */
- list_for_each_entry(crtci, &vbox->ddev.mode_config.crtc_list, head) {
- fb = crtci->primary->state->fb;
- if (!fb)
- continue;
-
- if (!fb1) {
- fb1 = fb;
- if (to_vbox_framebuffer(fb1) == &vbox->afb)
- break;
- } else if (fb != fb1) {
- single_framebuffer = false;
- }
- }
- if (!fb1)
- return false;
-
- if (single_framebuffer) {
- vbox->single_framebuffer = true;
- vbox->input_mapping_width = fb1->width;
- vbox->input_mapping_height = fb1->height;
- return old_single_framebuffer != vbox->single_framebuffer;
- }
- /* Otherwise calculate the total span of all screens. */
- list_for_each_entry(connectori, &vbox->ddev.mode_config.connector_list,
- head) {
- struct vbox_connector *vbox_connector =
- to_vbox_connector(connectori);
- struct vbox_crtc *vbox_crtc = vbox_connector->vbox_crtc;
-
- width = max_t(u16, width, vbox_crtc->x_hint +
- vbox_connector->mode_hint.width);
- height = max_t(u16, height, vbox_crtc->y_hint +
- vbox_connector->mode_hint.height);
- }
-
- vbox->single_framebuffer = false;
- vbox->input_mapping_width = width;
- vbox->input_mapping_height = height;
-
- return old_single_framebuffer != vbox->single_framebuffer;
-}
-
-static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc,
- struct drm_framebuffer *fb,
- int x, int y)
-{
- struct vbox_bo *bo = gem_to_vbox_bo(to_vbox_framebuffer(fb)->obj);
- struct vbox_private *vbox = crtc->dev->dev_private;
- struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
- bool needs_modeset = drm_atomic_crtc_needs_modeset(crtc->state);
-
- mutex_lock(&vbox->hw_mutex);
-
- if (crtc->state->enable) {
- vbox_crtc->width = crtc->state->mode.hdisplay;
- vbox_crtc->height = crtc->state->mode.vdisplay;
- }
-
- vbox_crtc->x = x;
- vbox_crtc->y = y;
- vbox_crtc->fb_offset = vbox_bo_gpu_offset(bo);
-
- /* vbox_do_modeset() checks vbox->single_framebuffer so update it now */
- if (needs_modeset && vbox_set_up_input_mapping(vbox)) {
- struct drm_crtc *crtci;
-
- list_for_each_entry(crtci, &vbox->ddev.mode_config.crtc_list,
- head) {
- if (crtci == crtc)
- continue;
- vbox_do_modeset(crtci);
- }
- }
-
- vbox_set_view(crtc);
- vbox_do_modeset(crtc);
-
- if (needs_modeset)
- hgsmi_update_input_mapping(vbox->guest_pool, 0, 0,
- vbox->input_mapping_width,
- vbox->input_mapping_height);
-
- mutex_unlock(&vbox->hw_mutex);
-}
-
-static void vbox_crtc_atomic_enable(struct drm_crtc *crtc,
- struct drm_crtc_state *old_crtc_state)
-{
-}
-
-static void vbox_crtc_atomic_disable(struct drm_crtc *crtc,
- struct drm_crtc_state *old_crtc_state)
-{
-}
-
-static void vbox_crtc_atomic_flush(struct drm_crtc *crtc,
- struct drm_crtc_state *old_crtc_state)
-{
- struct drm_pending_vblank_event *event;
- unsigned long flags;
-
- if (crtc->state && crtc->state->event) {
- event = crtc->state->event;
- crtc->state->event = NULL;
-
- spin_lock_irqsave(&crtc->dev->event_lock, flags);
- drm_crtc_send_vblank_event(crtc, event);
- spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
- }
-}
-
-static const struct drm_crtc_helper_funcs vbox_crtc_helper_funcs = {
- .atomic_enable = vbox_crtc_atomic_enable,
- .atomic_disable = vbox_crtc_atomic_disable,
- .atomic_flush = vbox_crtc_atomic_flush,
-};
-
-static void vbox_crtc_destroy(struct drm_crtc *crtc)
-{
- drm_crtc_cleanup(crtc);
- kfree(crtc);
-}
-
-static const struct drm_crtc_funcs vbox_crtc_funcs = {
- .set_config = drm_atomic_helper_set_config,
- .page_flip = drm_atomic_helper_page_flip,
- /* .gamma_set = vbox_crtc_gamma_set, */
- .destroy = vbox_crtc_destroy,
- .reset = drm_atomic_helper_crtc_reset,
- .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
- .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
-};
-
-static int vbox_primary_atomic_check(struct drm_plane *plane,
- struct drm_plane_state *new_state)
-{
- struct drm_crtc_state *crtc_state = NULL;
-
- if (new_state->crtc) {
- crtc_state = drm_atomic_get_existing_crtc_state(
- new_state->state, new_state->crtc);
- if (WARN_ON(!crtc_state))
- return -EINVAL;
- }
-
- return drm_atomic_helper_check_plane_state(new_state, crtc_state,
- DRM_PLANE_HELPER_NO_SCALING,
- DRM_PLANE_HELPER_NO_SCALING,
- false, true);
-}
-
-static void vbox_primary_atomic_update(struct drm_plane *plane,
- struct drm_plane_state *old_state)
-{
- struct drm_crtc *crtc = plane->state->crtc;
- struct drm_framebuffer *fb = plane->state->fb;
-
- vbox_crtc_set_base_and_mode(crtc, fb,
- plane->state->src_x >> 16,
- plane->state->src_y >> 16);
-}
-
-static void vbox_primary_atomic_disable(struct drm_plane *plane,
- struct drm_plane_state *old_state)
-{
- struct drm_crtc *crtc = old_state->crtc;
-
- /* vbox_do_modeset checks plane->state->fb and will disable if NULL */
- vbox_crtc_set_base_and_mode(crtc, old_state->fb,
- old_state->src_x >> 16,
- old_state->src_y >> 16);
-}
-
-static int vbox_primary_prepare_fb(struct drm_plane *plane,
- struct drm_plane_state *new_state)
-{
- struct vbox_bo *bo;
- int ret;
-
- if (!new_state->fb)
- return 0;
-
- bo = gem_to_vbox_bo(to_vbox_framebuffer(new_state->fb)->obj);
- ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM);
- if (ret)
- DRM_WARN("Error %d pinning new fb, out of video mem?\n", ret);
-
- return ret;
-}
-
-static void vbox_primary_cleanup_fb(struct drm_plane *plane,
- struct drm_plane_state *old_state)
-{
- struct vbox_bo *bo;
-
- if (!old_state->fb)
- return;
-
- bo = gem_to_vbox_bo(to_vbox_framebuffer(old_state->fb)->obj);
- vbox_bo_unpin(bo);
-}
-
-static int vbox_cursor_atomic_check(struct drm_plane *plane,
- struct drm_plane_state *new_state)
-{
- struct drm_crtc_state *crtc_state = NULL;
- u32 width = new_state->crtc_w;
- u32 height = new_state->crtc_h;
- int ret;
-
- if (new_state->crtc) {
- crtc_state = drm_atomic_get_existing_crtc_state(
- new_state->state, new_state->crtc);
- if (WARN_ON(!crtc_state))
- return -EINVAL;
- }
-
- ret = drm_atomic_helper_check_plane_state(new_state, crtc_state,
- DRM_PLANE_HELPER_NO_SCALING,
- DRM_PLANE_HELPER_NO_SCALING,
- true, true);
- if (ret)
- return ret;
-
- if (!new_state->fb)
- return 0;
-
- if (width > VBOX_MAX_CURSOR_WIDTH || height > VBOX_MAX_CURSOR_HEIGHT ||
- width == 0 || height == 0)
- return -EINVAL;
-
- return 0;
-}
-
-/*
- * Copy the ARGB image and generate the mask, which is needed in case the host
- * does not support ARGB cursors. The mask is a 1BPP bitmap with the bit set
- * if the corresponding alpha value in the ARGB image is greater than 0xF0.
- */
-static void copy_cursor_image(u8 *src, u8 *dst, u32 width, u32 height,
- size_t mask_size)
-{
- size_t line_size = (width + 7) / 8;
- u32 i, j;
-
- memcpy(dst + mask_size, src, width * height * 4);
- for (i = 0; i < height; ++i)
- for (j = 0; j < width; ++j)
- if (((u32 *)src)[i * width + j] > 0xf0000000)
- dst[i * line_size + j / 8] |= (0x80 >> (j % 8));
-}
-
-static void vbox_cursor_atomic_update(struct drm_plane *plane,
- struct drm_plane_state *old_state)
-{
- struct vbox_private *vbox =
- container_of(plane->dev, struct vbox_private, ddev);
- struct vbox_crtc *vbox_crtc = to_vbox_crtc(plane->state->crtc);
- struct drm_framebuffer *fb = plane->state->fb;
- struct vbox_bo *bo = gem_to_vbox_bo(to_vbox_framebuffer(fb)->obj);
- u32 width = plane->state->crtc_w;
- u32 height = plane->state->crtc_h;
- size_t data_size, mask_size;
- u32 flags;
- u8 *src;
-
- /*
- * VirtualBox uses the host windowing system to draw the cursor so
- * moves are a no-op, we only need to upload new cursor sprites.
- */
- if (fb == old_state->fb)
- return;
-
- mutex_lock(&vbox->hw_mutex);
-
- vbox_crtc->cursor_enabled = true;
-
- /* pinning is done in prepare/cleanup framebuffer */
- src = vbox_bo_kmap(bo);
- if (IS_ERR(src)) {
- mutex_unlock(&vbox->hw_mutex);
- DRM_WARN("Could not kmap cursor bo, skipping update\n");
- return;
- }
-
- /*
- * The mask must be calculated based on the alpha
- * channel, one bit per ARGB word, and must be 32-bit
- * padded.
- */
- mask_size = ((width + 7) / 8 * height + 3) & ~3;
- data_size = width * height * 4 + mask_size;
-
- copy_cursor_image(src, vbox->cursor_data, width, height, mask_size);
- vbox_bo_kunmap(bo);
-
- flags = VBOX_MOUSE_POINTER_VISIBLE | VBOX_MOUSE_POINTER_SHAPE |
- VBOX_MOUSE_POINTER_ALPHA;
- hgsmi_update_pointer_shape(vbox->guest_pool, flags,
- min_t(u32, max(fb->hot_x, 0), width),
- min_t(u32, max(fb->hot_y, 0), height),
- width, height, vbox->cursor_data, data_size);
-
- mutex_unlock(&vbox->hw_mutex);
-}
-
-static void vbox_cursor_atomic_disable(struct drm_plane *plane,
- struct drm_plane_state *old_state)
-{
- struct vbox_private *vbox =
- container_of(plane->dev, struct vbox_private, ddev);
- struct vbox_crtc *vbox_crtc = to_vbox_crtc(old_state->crtc);
- bool cursor_enabled = false;
- struct drm_crtc *crtci;
-
- mutex_lock(&vbox->hw_mutex);
-
- vbox_crtc->cursor_enabled = false;
-
- list_for_each_entry(crtci, &vbox->ddev.mode_config.crtc_list, head) {
- if (to_vbox_crtc(crtci)->cursor_enabled)
- cursor_enabled = true;
- }
-
- if (!cursor_enabled)
- hgsmi_update_pointer_shape(vbox->guest_pool, 0, 0, 0,
- 0, 0, NULL, 0);
-
- mutex_unlock(&vbox->hw_mutex);
-}
-
-static int vbox_cursor_prepare_fb(struct drm_plane *plane,
- struct drm_plane_state *new_state)
-{
- struct vbox_bo *bo;
-
- if (!new_state->fb)
- return 0;
-
- bo = gem_to_vbox_bo(to_vbox_framebuffer(new_state->fb)->obj);
- return vbox_bo_pin(bo, TTM_PL_FLAG_SYSTEM);
-}
-
-static void vbox_cursor_cleanup_fb(struct drm_plane *plane,
- struct drm_plane_state *old_state)
-{
- struct vbox_bo *bo;
-
- if (!plane->state->fb)
- return;
-
- bo = gem_to_vbox_bo(to_vbox_framebuffer(plane->state->fb)->obj);
- vbox_bo_unpin(bo);
-}
-
-static const u32 vbox_cursor_plane_formats[] = {
- DRM_FORMAT_ARGB8888,
-};
-
-static const struct drm_plane_helper_funcs vbox_cursor_helper_funcs = {
- .atomic_check = vbox_cursor_atomic_check,
- .atomic_update = vbox_cursor_atomic_update,
- .atomic_disable = vbox_cursor_atomic_disable,
- .prepare_fb = vbox_cursor_prepare_fb,
- .cleanup_fb = vbox_cursor_cleanup_fb,
-};
-
-static const struct drm_plane_funcs vbox_cursor_plane_funcs = {
- .update_plane = drm_atomic_helper_update_plane,
- .disable_plane = drm_atomic_helper_disable_plane,
- .destroy = drm_primary_helper_destroy,
- .reset = drm_atomic_helper_plane_reset,
- .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
- .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
-};
-
-static const u32 vbox_primary_plane_formats[] = {
- DRM_FORMAT_XRGB8888,
- DRM_FORMAT_ARGB8888,
-};
-
-static const struct drm_plane_helper_funcs vbox_primary_helper_funcs = {
- .atomic_check = vbox_primary_atomic_check,
- .atomic_update = vbox_primary_atomic_update,
- .atomic_disable = vbox_primary_atomic_disable,
- .prepare_fb = vbox_primary_prepare_fb,
- .cleanup_fb = vbox_primary_cleanup_fb,
-};
-
-static const struct drm_plane_funcs vbox_primary_plane_funcs = {
- .update_plane = drm_atomic_helper_update_plane,
- .disable_plane = drm_atomic_helper_disable_plane,
- .destroy = drm_primary_helper_destroy,
- .reset = drm_atomic_helper_plane_reset,
- .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
- .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
-};
-
-static struct drm_plane *vbox_create_plane(struct vbox_private *vbox,
- unsigned int possible_crtcs,
- enum drm_plane_type type)
-{
- const struct drm_plane_helper_funcs *helper_funcs = NULL;
- const struct drm_plane_funcs *funcs;
- struct drm_plane *plane;
- const u32 *formats;
- int num_formats;
- int err;
-
- if (type == DRM_PLANE_TYPE_PRIMARY) {
- funcs = &vbox_primary_plane_funcs;
- formats = vbox_primary_plane_formats;
- helper_funcs = &vbox_primary_helper_funcs;
- num_formats = ARRAY_SIZE(vbox_primary_plane_formats);
- } else if (type == DRM_PLANE_TYPE_CURSOR) {
- funcs = &vbox_cursor_plane_funcs;
- formats = vbox_cursor_plane_formats;
- helper_funcs = &vbox_cursor_helper_funcs;
- num_formats = ARRAY_SIZE(vbox_cursor_plane_formats);
- } else {
- return ERR_PTR(-EINVAL);
- }
-
- plane = kzalloc(sizeof(*plane), GFP_KERNEL);
- if (!plane)
- return ERR_PTR(-ENOMEM);
-
- err = drm_universal_plane_init(&vbox->ddev, plane, possible_crtcs,
- funcs, formats, num_formats,
- NULL, type, NULL);
- if (err)
- goto free_plane;
-
- drm_plane_helper_add(plane, helper_funcs);
-
- return plane;
-
-free_plane:
- kfree(plane);
- return ERR_PTR(-EINVAL);
-}
-
-static struct vbox_crtc *vbox_crtc_init(struct drm_device *dev, unsigned int i)
-{
- struct vbox_private *vbox =
- container_of(dev, struct vbox_private, ddev);
- struct drm_plane *cursor = NULL;
- struct vbox_crtc *vbox_crtc;
- struct drm_plane *primary;
- u32 caps = 0;
- int ret;
-
- ret = hgsmi_query_conf(vbox->guest_pool,
- VBOX_VBVA_CONF32_CURSOR_CAPABILITIES, &caps);
- if (ret)
- return ERR_PTR(ret);
-
- vbox_crtc = kzalloc(sizeof(*vbox_crtc), GFP_KERNEL);
- if (!vbox_crtc)
- return ERR_PTR(-ENOMEM);
-
- primary = vbox_create_plane(vbox, 1 << i, DRM_PLANE_TYPE_PRIMARY);
- if (IS_ERR(primary)) {
- ret = PTR_ERR(primary);
- goto free_mem;
- }
-
- if ((caps & VBOX_VBVA_CURSOR_CAPABILITY_HARDWARE)) {
- cursor = vbox_create_plane(vbox, 1 << i, DRM_PLANE_TYPE_CURSOR);
- if (IS_ERR(cursor)) {
- ret = PTR_ERR(cursor);
- goto clean_primary;
- }
- } else {
- DRM_WARN("VirtualBox host is too old, no cursor support\n");
- }
-
- vbox_crtc->crtc_id = i;
-
- ret = drm_crtc_init_with_planes(dev, &vbox_crtc->base, primary, cursor,
- &vbox_crtc_funcs, NULL);
- if (ret)
- goto clean_cursor;
-
- drm_mode_crtc_set_gamma_size(&vbox_crtc->base, 256);
- drm_crtc_helper_add(&vbox_crtc->base, &vbox_crtc_helper_funcs);
-
- return vbox_crtc;
-
-clean_cursor:
- if (cursor) {
- drm_plane_cleanup(cursor);
- kfree(cursor);
- }
-clean_primary:
- drm_plane_cleanup(primary);
- kfree(primary);
-free_mem:
- kfree(vbox_crtc);
- return ERR_PTR(ret);
-}
-
-static void vbox_encoder_destroy(struct drm_encoder *encoder)
-{
- drm_encoder_cleanup(encoder);
- kfree(encoder);
-}
-
-static const struct drm_encoder_funcs vbox_enc_funcs = {
- .destroy = vbox_encoder_destroy,
-};
-
-static struct drm_encoder *vbox_encoder_init(struct drm_device *dev,
- unsigned int i)
-{
- struct vbox_encoder *vbox_encoder;
-
- vbox_encoder = kzalloc(sizeof(*vbox_encoder), GFP_KERNEL);
- if (!vbox_encoder)
- return NULL;
-
- drm_encoder_init(dev, &vbox_encoder->base, &vbox_enc_funcs,
- DRM_MODE_ENCODER_DAC, NULL);
-
- vbox_encoder->base.possible_crtcs = 1 << i;
- return &vbox_encoder->base;
-}
-
-/*
- * Generate EDID data with a mode-unique serial number for the virtual
- * monitor to try to persuade Unity that different modes correspond to
- * different monitors and it should not try to force the same resolution on
- * them.
- */
-static void vbox_set_edid(struct drm_connector *connector, int width,
- int height)
-{
- enum { EDID_SIZE = 128 };
- unsigned char edid[EDID_SIZE] = {
- 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, /* header */
- 0x58, 0x58, /* manufacturer (VBX) */
- 0x00, 0x00, /* product code */
- 0x00, 0x00, 0x00, 0x00, /* serial number goes here */
- 0x01, /* week of manufacture */
- 0x00, /* year of manufacture */
- 0x01, 0x03, /* EDID version */
- 0x80, /* capabilities - digital */
- 0x00, /* horiz. res in cm, zero for projectors */
- 0x00, /* vert. res in cm */
- 0x78, /* display gamma (120 == 2.2). */
- 0xEE, /* features (standby, suspend, off, RGB, std */
- /* colour space, preferred timing mode) */
- 0xEE, 0x91, 0xA3, 0x54, 0x4C, 0x99, 0x26, 0x0F, 0x50, 0x54,
- /* chromaticity for standard colour space. */
- 0x00, 0x00, 0x00, /* no default timings */
- 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
- 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x01, /* no standard timings */
- 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x06, 0x00, 0x02, 0x02,
- 0x02, 0x02,
- /* descriptor block 1 goes below */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* descriptor block 2, monitor ranges */
- 0x00, 0x00, 0x00, 0xFD, 0x00,
- 0x00, 0xC8, 0x00, 0xC8, 0x64, 0x00, 0x0A, 0x20, 0x20, 0x20,
- 0x20, 0x20,
- /* 0-200Hz vertical, 0-200KHz horizontal, 1000MHz pixel clock */
- 0x20,
- /* descriptor block 3, monitor name */
- 0x00, 0x00, 0x00, 0xFC, 0x00,
- 'V', 'B', 'O', 'X', ' ', 'm', 'o', 'n', 'i', 't', 'o', 'r',
- '\n',
- /* descriptor block 4: dummy data */
- 0x00, 0x00, 0x00, 0x10, 0x00,
- 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20,
- 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
- 0x20,
- 0x00, /* number of extensions */
- 0x00 /* checksum goes here */
- };
- int clock = (width + 6) * (height + 6) * 60 / 10000;
- unsigned int i, sum = 0;
-
- edid[12] = width & 0xff;
- edid[13] = width >> 8;
- edid[14] = height & 0xff;
- edid[15] = height >> 8;
- edid[54] = clock & 0xff;
- edid[55] = clock >> 8;
- edid[56] = width & 0xff;
- edid[58] = (width >> 4) & 0xf0;
- edid[59] = height & 0xff;
- edid[61] = (height >> 4) & 0xf0;
- for (i = 0; i < EDID_SIZE - 1; ++i)
- sum += edid[i];
- edid[EDID_SIZE - 1] = (0x100 - (sum & 0xFF)) & 0xFF;
- drm_connector_update_edid_property(connector, (struct edid *)edid);
-}
-
-static int vbox_get_modes(struct drm_connector *connector)
-{
- struct vbox_connector *vbox_connector = NULL;
- struct drm_display_mode *mode = NULL;
- struct vbox_private *vbox = NULL;
- unsigned int num_modes = 0;
- int preferred_width, preferred_height;
-
- vbox_connector = to_vbox_connector(connector);
- vbox = connector->dev->dev_private;
-
- hgsmi_report_flags_location(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) +
- HOST_FLAGS_OFFSET);
- if (vbox_connector->vbox_crtc->crtc_id == 0)
- vbox_report_caps(vbox);
-
- num_modes = drm_add_modes_noedid(connector, 2560, 1600);
- preferred_width = vbox_connector->mode_hint.width ?
- vbox_connector->mode_hint.width : 1024;
- preferred_height = vbox_connector->mode_hint.height ?
- vbox_connector->mode_hint.height : 768;
- mode = drm_cvt_mode(connector->dev, preferred_width, preferred_height,
- 60, false, false, false);
- if (mode) {
- mode->type |= DRM_MODE_TYPE_PREFERRED;
- drm_mode_probed_add(connector, mode);
- ++num_modes;
- }
- vbox_set_edid(connector, preferred_width, preferred_height);
-
- if (vbox_connector->vbox_crtc->x_hint != -1)
- drm_object_property_set_value(&connector->base,
- vbox->ddev.mode_config.suggested_x_property,
- vbox_connector->vbox_crtc->x_hint);
- else
- drm_object_property_set_value(&connector->base,
- vbox->ddev.mode_config.suggested_x_property, 0);
-
- if (vbox_connector->vbox_crtc->y_hint != -1)
- drm_object_property_set_value(&connector->base,
- vbox->ddev.mode_config.suggested_y_property,
- vbox_connector->vbox_crtc->y_hint);
- else
- drm_object_property_set_value(&connector->base,
- vbox->ddev.mode_config.suggested_y_property, 0);
-
- return num_modes;
-}
-
-static void vbox_connector_destroy(struct drm_connector *connector)
-{
- drm_connector_unregister(connector);
- drm_connector_cleanup(connector);
- kfree(connector);
-}
-
-static enum drm_connector_status
-vbox_connector_detect(struct drm_connector *connector, bool force)
-{
- struct vbox_connector *vbox_connector;
-
- vbox_connector = to_vbox_connector(connector);
-
- return vbox_connector->mode_hint.disconnected ?
- connector_status_disconnected : connector_status_connected;
-}
-
-static int vbox_fill_modes(struct drm_connector *connector, u32 max_x,
- u32 max_y)
-{
- struct vbox_connector *vbox_connector;
- struct drm_device *dev;
- struct drm_display_mode *mode, *iterator;
-
- vbox_connector = to_vbox_connector(connector);
- dev = vbox_connector->base.dev;
- list_for_each_entry_safe(mode, iterator, &connector->modes, head) {
- list_del(&mode->head);
- drm_mode_destroy(dev, mode);
- }
-
- return drm_helper_probe_single_connector_modes(connector, max_x, max_y);
-}
-
-static const struct drm_connector_helper_funcs vbox_connector_helper_funcs = {
- .get_modes = vbox_get_modes,
-};
-
-static const struct drm_connector_funcs vbox_connector_funcs = {
- .detect = vbox_connector_detect,
- .fill_modes = vbox_fill_modes,
- .destroy = vbox_connector_destroy,
- .reset = drm_atomic_helper_connector_reset,
- .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
- .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
-};
-
-static int vbox_connector_init(struct drm_device *dev,
- struct vbox_crtc *vbox_crtc,
- struct drm_encoder *encoder)
-{
- struct vbox_connector *vbox_connector;
- struct drm_connector *connector;
-
- vbox_connector = kzalloc(sizeof(*vbox_connector), GFP_KERNEL);
- if (!vbox_connector)
- return -ENOMEM;
-
- connector = &vbox_connector->base;
- vbox_connector->vbox_crtc = vbox_crtc;
-
- drm_connector_init(dev, connector, &vbox_connector_funcs,
- DRM_MODE_CONNECTOR_VGA);
- drm_connector_helper_add(connector, &vbox_connector_helper_funcs);
-
- connector->interlace_allowed = 0;
- connector->doublescan_allowed = 0;
-
- drm_mode_create_suggested_offset_properties(dev);
- drm_object_attach_property(&connector->base,
- dev->mode_config.suggested_x_property, 0);
- drm_object_attach_property(&connector->base,
- dev->mode_config.suggested_y_property, 0);
-
- drm_connector_attach_encoder(connector, encoder);
-
- return 0;
-}
-
-static struct drm_framebuffer *vbox_user_framebuffer_create(
- struct drm_device *dev,
- struct drm_file *filp,
- const struct drm_mode_fb_cmd2 *mode_cmd)
-{
- struct vbox_private *vbox =
- container_of(dev, struct vbox_private, ddev);
- struct drm_gem_object *obj;
- struct vbox_framebuffer *vbox_fb;
- int ret = -ENOMEM;
-
- obj = drm_gem_object_lookup(filp, mode_cmd->handles[0]);
- if (!obj)
- return ERR_PTR(-ENOENT);
-
- vbox_fb = kzalloc(sizeof(*vbox_fb), GFP_KERNEL);
- if (!vbox_fb)
- goto err_unref_obj;
-
- ret = vbox_framebuffer_init(vbox, vbox_fb, mode_cmd, obj);
- if (ret)
- goto err_free_vbox_fb;
-
- return &vbox_fb->base;
-
-err_free_vbox_fb:
- kfree(vbox_fb);
-err_unref_obj:
- drm_gem_object_put_unlocked(obj);
- return ERR_PTR(ret);
-}
-
-static const struct drm_mode_config_funcs vbox_mode_funcs = {
- .fb_create = vbox_user_framebuffer_create,
- .atomic_check = drm_atomic_helper_check,
- .atomic_commit = drm_atomic_helper_commit,
-};
-
-int vbox_mode_init(struct vbox_private *vbox)
-{
- struct drm_device *dev = &vbox->ddev;
- struct drm_encoder *encoder;
- struct vbox_crtc *vbox_crtc;
- unsigned int i;
- int ret;
-
- drm_mode_config_init(dev);
-
- dev->mode_config.funcs = (void *)&vbox_mode_funcs;
- dev->mode_config.min_width = 0;
- dev->mode_config.min_height = 0;
- dev->mode_config.preferred_depth = 24;
- dev->mode_config.max_width = VBE_DISPI_MAX_XRES;
- dev->mode_config.max_height = VBE_DISPI_MAX_YRES;
-
- for (i = 0; i < vbox->num_crtcs; ++i) {
- vbox_crtc = vbox_crtc_init(dev, i);
- if (IS_ERR(vbox_crtc)) {
- ret = PTR_ERR(vbox_crtc);
- goto err_drm_mode_cleanup;
- }
- encoder = vbox_encoder_init(dev, i);
- if (!encoder) {
- ret = -ENOMEM;
- goto err_drm_mode_cleanup;
- }
- ret = vbox_connector_init(dev, vbox_crtc, encoder);
- if (ret)
- goto err_drm_mode_cleanup;
- }
-
- drm_mode_config_reset(dev);
- return 0;
-
-err_drm_mode_cleanup:
- drm_mode_config_cleanup(dev);
- return ret;
-}
-
-void vbox_mode_fini(struct vbox_private *vbox)
-{
- drm_mode_config_cleanup(&vbox->ddev);
-}
+++ /dev/null
-// SPDX-License-Identifier: MIT
-/*
- * Copyright (C) 2017 Oracle Corporation
- * Copyright 2017 Canonical
- * Authors: Andreas Pokorny
- */
-
-#include "vbox_drv.h"
-
-/*
- * Based on qxl_prime.c:
- * Empty Implementations as there should not be any other driver for a virtual
- * device that might share buffers with vboxvideo
- */
-
-int vbox_gem_prime_pin(struct drm_gem_object *obj)
-{
- WARN_ONCE(1, "not implemented");
- return -ENOSYS;
-}
-
-void vbox_gem_prime_unpin(struct drm_gem_object *obj)
-{
- WARN_ONCE(1, "not implemented");
-}
-
-struct sg_table *vbox_gem_prime_get_sg_table(struct drm_gem_object *obj)
-{
- WARN_ONCE(1, "not implemented");
- return ERR_PTR(-ENOSYS);
-}
-
-struct drm_gem_object *vbox_gem_prime_import_sg_table(
- struct drm_device *dev, struct dma_buf_attachment *attach,
- struct sg_table *table)
-{
- WARN_ONCE(1, "not implemented");
- return ERR_PTR(-ENOSYS);
-}
-
-void *vbox_gem_prime_vmap(struct drm_gem_object *obj)
-{
- WARN_ONCE(1, "not implemented");
- return ERR_PTR(-ENOSYS);
-}
-
-void vbox_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
-{
- WARN_ONCE(1, "not implemented");
-}
-
-int vbox_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *area)
-{
- WARN_ONCE(1, "not implemented");
- return -ENOSYS;
-}
+++ /dev/null
-// SPDX-License-Identifier: MIT
-/*
- * Copyright (C) 2013-2017 Oracle Corporation
- * This file is based on ast_ttm.c
- * Copyright 2012 Red Hat Inc.
- * Authors: Dave Airlie <airlied@redhat.com>
- * Michael Thayer <michael.thayer@oracle.com>
- */
-#include <linux/pci.h>
-#include <drm/drm_file.h>
-#include <drm/ttm/ttm_page_alloc.h>
-#include "vbox_drv.h"
-
-static inline struct vbox_private *vbox_bdev(struct ttm_bo_device *bd)
-{
- return container_of(bd, struct vbox_private, ttm.bdev);
-}
-
-static void vbox_bo_ttm_destroy(struct ttm_buffer_object *tbo)
-{
- struct vbox_bo *bo;
-
- bo = container_of(tbo, struct vbox_bo, bo);
-
- drm_gem_object_release(&bo->gem);
- kfree(bo);
-}
-
-static bool vbox_ttm_bo_is_vbox_bo(struct ttm_buffer_object *bo)
-{
- if (bo->destroy == &vbox_bo_ttm_destroy)
- return true;
-
- return false;
-}
-
-static int
-vbox_bo_init_mem_type(struct ttm_bo_device *bdev, u32 type,
- struct ttm_mem_type_manager *man)
-{
- switch (type) {
- case TTM_PL_SYSTEM:
- man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
- man->available_caching = TTM_PL_MASK_CACHING;
- man->default_caching = TTM_PL_FLAG_CACHED;
- break;
- case TTM_PL_VRAM:
- man->func = &ttm_bo_manager_func;
- man->flags = TTM_MEMTYPE_FLAG_FIXED | TTM_MEMTYPE_FLAG_MAPPABLE;
- man->available_caching = TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
- man->default_caching = TTM_PL_FLAG_WC;
- break;
- default:
- DRM_ERROR("Unsupported memory type %u\n", (unsigned int)type);
- return -EINVAL;
- }
-
- return 0;
-}
-
-static void
-vbox_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
-{
- struct vbox_bo *vboxbo = vbox_bo(bo);
-
- if (!vbox_ttm_bo_is_vbox_bo(bo))
- return;
-
- vbox_ttm_placement(vboxbo, TTM_PL_FLAG_SYSTEM);
- *pl = vboxbo->placement;
-}
-
-static int vbox_bo_verify_access(struct ttm_buffer_object *bo,
- struct file *filp)
-{
- return 0;
-}
-
-static int vbox_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
- struct ttm_mem_reg *mem)
-{
- struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
- struct vbox_private *vbox = vbox_bdev(bdev);
-
- mem->bus.addr = NULL;
- mem->bus.offset = 0;
- mem->bus.size = mem->num_pages << PAGE_SHIFT;
- mem->bus.base = 0;
- mem->bus.is_iomem = false;
- if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
- return -EINVAL;
- switch (mem->mem_type) {
- case TTM_PL_SYSTEM:
- /* system memory */
- return 0;
- case TTM_PL_VRAM:
- mem->bus.offset = mem->start << PAGE_SHIFT;
- mem->bus.base = pci_resource_start(vbox->ddev.pdev, 0);
- mem->bus.is_iomem = true;
- break;
- default:
- return -EINVAL;
- }
- return 0;
-}
-
-static void vbox_ttm_io_mem_free(struct ttm_bo_device *bdev,
- struct ttm_mem_reg *mem)
-{
-}
-
-static void vbox_ttm_backend_destroy(struct ttm_tt *tt)
-{
- ttm_tt_fini(tt);
- kfree(tt);
-}
-
-static struct ttm_backend_func vbox_tt_backend_func = {
- .destroy = &vbox_ttm_backend_destroy,
-};
-
-static struct ttm_tt *vbox_ttm_tt_create(struct ttm_buffer_object *bo,
- u32 page_flags)
-{
- struct ttm_tt *tt;
-
- tt = kzalloc(sizeof(*tt), GFP_KERNEL);
- if (!tt)
- return NULL;
-
- tt->func = &vbox_tt_backend_func;
- if (ttm_tt_init(tt, bo, page_flags)) {
- kfree(tt);
- return NULL;
- }
-
- return tt;
-}
-
-static struct ttm_bo_driver vbox_bo_driver = {
- .ttm_tt_create = vbox_ttm_tt_create,
- .init_mem_type = vbox_bo_init_mem_type,
- .eviction_valuable = ttm_bo_eviction_valuable,
- .evict_flags = vbox_bo_evict_flags,
- .verify_access = vbox_bo_verify_access,
- .io_mem_reserve = &vbox_ttm_io_mem_reserve,
- .io_mem_free = &vbox_ttm_io_mem_free,
-};
-
-int vbox_mm_init(struct vbox_private *vbox)
-{
- int ret;
- struct drm_device *dev = &vbox->ddev;
- struct ttm_bo_device *bdev = &vbox->ttm.bdev;
-
- ret = ttm_bo_device_init(&vbox->ttm.bdev,
- &vbox_bo_driver,
- dev->anon_inode->i_mapping,
- DRM_FILE_PAGE_OFFSET, true);
- if (ret) {
- DRM_ERROR("Error initialising bo driver; %d\n", ret);
- return ret;
- }
-
- ret = ttm_bo_init_mm(bdev, TTM_PL_VRAM,
- vbox->available_vram_size >> PAGE_SHIFT);
- if (ret) {
- DRM_ERROR("Failed ttm VRAM init: %d\n", ret);
- goto err_device_release;
- }
-
-#ifdef DRM_MTRR_WC
- vbox->fb_mtrr = drm_mtrr_add(pci_resource_start(dev->pdev, 0),
- pci_resource_len(dev->pdev, 0),
- DRM_MTRR_WC);
-#else
- vbox->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0),
- pci_resource_len(dev->pdev, 0));
-#endif
- return 0;
-
-err_device_release:
- ttm_bo_device_release(&vbox->ttm.bdev);
- return ret;
-}
-
-void vbox_mm_fini(struct vbox_private *vbox)
-{
-#ifdef DRM_MTRR_WC
- drm_mtrr_del(vbox->fb_mtrr,
- pci_resource_start(vbox->ddev.pdev, 0),
- pci_resource_len(vbox->ddev.pdev, 0), DRM_MTRR_WC);
-#else
- arch_phys_wc_del(vbox->fb_mtrr);
-#endif
- ttm_bo_device_release(&vbox->ttm.bdev);
-}
-
-void vbox_ttm_placement(struct vbox_bo *bo, int domain)
-{
- unsigned int i;
- u32 c = 0;
-
- bo->placement.placement = bo->placements;
- bo->placement.busy_placement = bo->placements;
-
- if (domain & TTM_PL_FLAG_VRAM)
- bo->placements[c++].flags =
- TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM;
- if (domain & TTM_PL_FLAG_SYSTEM)
- bo->placements[c++].flags =
- TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
- if (!c)
- bo->placements[c++].flags =
- TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
-
- bo->placement.num_placement = c;
- bo->placement.num_busy_placement = c;
-
- for (i = 0; i < c; ++i) {
- bo->placements[i].fpfn = 0;
- bo->placements[i].lpfn = 0;
- }
-}
-
-int vbox_bo_create(struct vbox_private *vbox, int size, int align,
- u32 flags, struct vbox_bo **pvboxbo)
-{
- struct vbox_bo *vboxbo;
- size_t acc_size;
- int ret;
-
- vboxbo = kzalloc(sizeof(*vboxbo), GFP_KERNEL);
- if (!vboxbo)
- return -ENOMEM;
-
- ret = drm_gem_object_init(&vbox->ddev, &vboxbo->gem, size);
- if (ret)
- goto err_free_vboxbo;
-
- vboxbo->bo.bdev = &vbox->ttm.bdev;
-
- vbox_ttm_placement(vboxbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
-
- acc_size = ttm_bo_dma_acc_size(&vbox->ttm.bdev, size,
- sizeof(struct vbox_bo));
-
- ret = ttm_bo_init(&vbox->ttm.bdev, &vboxbo->bo, size,
- ttm_bo_type_device, &vboxbo->placement,
- align >> PAGE_SHIFT, false, acc_size,
- NULL, NULL, vbox_bo_ttm_destroy);
- if (ret)
- goto err_free_vboxbo;
-
- *pvboxbo = vboxbo;
-
- return 0;
-
-err_free_vboxbo:
- kfree(vboxbo);
- return ret;
-}
-
-int vbox_bo_pin(struct vbox_bo *bo, u32 pl_flag)
-{
- struct ttm_operation_ctx ctx = { false, false };
- int i, ret;
-
- if (bo->pin_count) {
- bo->pin_count++;
- return 0;
- }
-
- ret = vbox_bo_reserve(bo, false);
- if (ret)
- return ret;
-
- vbox_ttm_placement(bo, pl_flag);
-
- for (i = 0; i < bo->placement.num_placement; i++)
- bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
-
- ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
- if (ret == 0)
- bo->pin_count = 1;
-
- vbox_bo_unreserve(bo);
-
- return ret;
-}
-
-int vbox_bo_unpin(struct vbox_bo *bo)
-{
- struct ttm_operation_ctx ctx = { false, false };
- int i, ret;
-
- if (!bo->pin_count) {
- DRM_ERROR("unpin bad %p\n", bo);
- return 0;
- }
- bo->pin_count--;
- if (bo->pin_count)
- return 0;
-
- ret = vbox_bo_reserve(bo, false);
- if (ret) {
- DRM_ERROR("Error %d reserving bo, leaving it pinned\n", ret);
- return ret;
- }
-
- for (i = 0; i < bo->placement.num_placement; i++)
- bo->placements[i].flags &= ~TTM_PL_FLAG_NO_EVICT;
-
- ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
-
- vbox_bo_unreserve(bo);
-
- return ret;
-}
-
-/*
- * Move a vbox-owned buffer object to system memory if no one else has it
- * pinned. The caller must have pinned it previously, and this call will
- * release the caller's pin.
- */
-int vbox_bo_push_sysram(struct vbox_bo *bo)
-{
- struct ttm_operation_ctx ctx = { false, false };
- int i, ret;
-
- if (!bo->pin_count) {
- DRM_ERROR("unpin bad %p\n", bo);
- return 0;
- }
- bo->pin_count--;
- if (bo->pin_count)
- return 0;
-
- if (bo->kmap.virtual) {
- ttm_bo_kunmap(&bo->kmap);
- bo->kmap.virtual = NULL;
- }
-
- vbox_ttm_placement(bo, TTM_PL_FLAG_SYSTEM);
-
- for (i = 0; i < bo->placement.num_placement; i++)
- bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
-
- ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
- if (ret) {
- DRM_ERROR("pushing to VRAM failed\n");
- return ret;
- }
-
- return 0;
-}
-
-int vbox_mmap(struct file *filp, struct vm_area_struct *vma)
-{
- struct drm_file *file_priv;
- struct vbox_private *vbox;
-
- if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
- return -EINVAL;
-
- file_priv = filp->private_data;
- vbox = file_priv->minor->dev->dev_private;
-
- return ttm_bo_mmap(filp, vma, &vbox->ttm.bdev);
-}
-
-void *vbox_bo_kmap(struct vbox_bo *bo)
-{
- int ret;
-
- if (bo->kmap.virtual)
- return bo->kmap.virtual;
-
- ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
- if (ret) {
- DRM_ERROR("Error kmapping bo: %d\n", ret);
- return NULL;
- }
-
- return bo->kmap.virtual;
-}
-
-void vbox_bo_kunmap(struct vbox_bo *bo)
-{
- if (bo->kmap.virtual) {
- ttm_bo_kunmap(&bo->kmap);
- bo->kmap.virtual = NULL;
- }
-}
+++ /dev/null
-/* SPDX-License-Identifier: MIT */
-/* Copyright (C) 2006-2016 Oracle Corporation */
-
-#ifndef __VBOXVIDEO_H__
-#define __VBOXVIDEO_H__
-
-#define VBOX_VIDEO_MAX_SCREENS 64
-
-/*
- * The last 4096 bytes of the guest VRAM contains the generic info for all
- * DualView chunks: sizes and offsets of chunks. This is filled by miniport.
- *
- * Last 4096 bytes of each chunk contain chunk specific data: framebuffer info,
- * etc. This is used exclusively by the corresponding instance of a display
- * driver.
- *
- * The VRAM layout:
- * Last 4096 bytes - Adapter information area.
- * 4096 bytes aligned miniport heap (value specified in the config rouded up).
- * Slack - what left after dividing the VRAM.
- * 4096 bytes aligned framebuffers:
- * last 4096 bytes of each framebuffer is the display information area.
- *
- * The Virtual Graphics Adapter information in the guest VRAM is stored by the
- * guest video driver using structures prepended by VBOXVIDEOINFOHDR.
- *
- * When the guest driver writes dword 0 to the VBE_DISPI_INDEX_VBOX_VIDEO
- * the host starts to process the info. The first element at the start of
- * the 4096 bytes region should be normally be a LINK that points to
- * actual information chain. That way the guest driver can have some
- * fixed layout of the information memory block and just rewrite
- * the link to point to relevant memory chain.
- *
- * The processing stops at the END element.
- *
- * The host can access the memory only when the port IO is processed.
- * All data that will be needed later must be copied from these 4096 bytes.
- * But other VRAM can be used by host until the mode is disabled.
- *
- * The guest driver writes dword 0xffffffff to the VBE_DISPI_INDEX_VBOX_VIDEO
- * to disable the mode.
- *
- * VBE_DISPI_INDEX_VBOX_VIDEO is used to read the configuration information
- * from the host and issue commands to the host.
- *
- * The guest writes the VBE_DISPI_INDEX_VBOX_VIDEO index register, the the
- * following operations with the VBE data register can be performed:
- *
- * Operation Result
- * write 16 bit value NOP
- * read 16 bit value count of monitors
- * write 32 bit value set the vbox cmd value and the cmd processed by the host
- * read 32 bit value result of the last vbox command is returned
- */
-
-struct vbva_cmd_hdr {
- s16 x;
- s16 y;
- u16 w;
- u16 h;
-} __packed;
-
-/*
- * The VBVA ring buffer is suitable for transferring large (< 2GB) amount of
- * data. For example big bitmaps which do not fit to the buffer.
- *
- * Guest starts writing to the buffer by initializing a record entry in the
- * records queue. VBVA_F_RECORD_PARTIAL indicates that the record is being
- * written. As data is written to the ring buffer, the guest increases
- * free_offset.
- *
- * The host reads the records on flushes and processes all completed records.
- * When host encounters situation when only a partial record presents and
- * len_and_flags & ~VBVA_F_RECORD_PARTIAL >= VBVA_RING_BUFFER_SIZE -
- * VBVA_RING_BUFFER_THRESHOLD, the host fetched all record data and updates
- * data_offset. After that on each flush the host continues fetching the data
- * until the record is completed.
- */
-
-#define VBVA_RING_BUFFER_SIZE (4194304 - 1024)
-#define VBVA_RING_BUFFER_THRESHOLD (4096)
-
-#define VBVA_MAX_RECORDS (64)
-
-#define VBVA_F_MODE_ENABLED 0x00000001u
-#define VBVA_F_MODE_VRDP 0x00000002u
-#define VBVA_F_MODE_VRDP_RESET 0x00000004u
-#define VBVA_F_MODE_VRDP_ORDER_MASK 0x00000008u
-
-#define VBVA_F_STATE_PROCESSING 0x00010000u
-
-#define VBVA_F_RECORD_PARTIAL 0x80000000u
-
-struct vbva_record {
- u32 len_and_flags;
-} __packed;
-
-/*
- * The minimum HGSMI heap size is PAGE_SIZE (4096 bytes) and is a restriction of
- * the runtime heapsimple API. Use minimum 2 pages here, because the info area
- * also may contain other data (for example hgsmi_host_flags structure).
- */
-#define VBVA_ADAPTER_INFORMATION_SIZE 65536
-#define VBVA_MIN_BUFFER_SIZE 65536
-
-/* The value for port IO to let the adapter to interpret the adapter memory. */
-#define VBOX_VIDEO_DISABLE_ADAPTER_MEMORY 0xFFFFFFFF
-
-/* The value for port IO to let the adapter to interpret the adapter memory. */
-#define VBOX_VIDEO_INTERPRET_ADAPTER_MEMORY 0x00000000
-
-/*
- * The value for port IO to let the adapter to interpret the display memory.
- * The display number is encoded in low 16 bits.
- */
-#define VBOX_VIDEO_INTERPRET_DISPLAY_MEMORY_BASE 0x00010000
-
-struct vbva_host_flags {
- u32 host_events;
- u32 supported_orders;
-} __packed;
-
-struct vbva_buffer {
- struct vbva_host_flags host_flags;
-
- /* The offset where the data start in the buffer. */
- u32 data_offset;
- /* The offset where next data must be placed in the buffer. */
- u32 free_offset;
-
- /* The queue of record descriptions. */
- struct vbva_record records[VBVA_MAX_RECORDS];
- u32 record_first_index;
- u32 record_free_index;
-
- /* Space to leave free when large partial records are transferred. */
- u32 partial_write_tresh;
-
- u32 data_len;
- /* variable size for the rest of the vbva_buffer area in VRAM. */
- u8 data[0];
-} __packed;
-
-#define VBVA_MAX_RECORD_SIZE (128 * 1024 * 1024)
-
-/* guest->host commands */
-#define VBVA_QUERY_CONF32 1
-#define VBVA_SET_CONF32 2
-#define VBVA_INFO_VIEW 3
-#define VBVA_INFO_HEAP 4
-#define VBVA_FLUSH 5
-#define VBVA_INFO_SCREEN 6
-#define VBVA_ENABLE 7
-#define VBVA_MOUSE_POINTER_SHAPE 8
-/* informs host about HGSMI caps. see vbva_caps below */
-#define VBVA_INFO_CAPS 12
-/* configures scanline, see VBVASCANLINECFG below */
-#define VBVA_SCANLINE_CFG 13
-/* requests scanline info, see VBVASCANLINEINFO below */
-#define VBVA_SCANLINE_INFO 14
-/* inform host about VBVA Command submission */
-#define VBVA_CMDVBVA_SUBMIT 16
-/* inform host about VBVA Command submission */
-#define VBVA_CMDVBVA_FLUSH 17
-/* G->H DMA command */
-#define VBVA_CMDVBVA_CTL 18
-/* Query most recent mode hints sent */
-#define VBVA_QUERY_MODE_HINTS 19
-/*
- * Report the guest virtual desktop position and size for mapping host and
- * guest pointer positions.
- */
-#define VBVA_REPORT_INPUT_MAPPING 20
-/* Report the guest cursor position and query the host position. */
-#define VBVA_CURSOR_POSITION 21
-
-/* host->guest commands */
-#define VBVAHG_EVENT 1
-#define VBVAHG_DISPLAY_CUSTOM 2
-
-/* vbva_conf32::index */
-#define VBOX_VBVA_CONF32_MONITOR_COUNT 0
-#define VBOX_VBVA_CONF32_HOST_HEAP_SIZE 1
-/*
- * Returns VINF_SUCCESS if the host can report mode hints via VBVA.
- * Set value to VERR_NOT_SUPPORTED before calling.
- */
-#define VBOX_VBVA_CONF32_MODE_HINT_REPORTING 2
-/*
- * Returns VINF_SUCCESS if the host can report guest cursor enabled status via
- * VBVA. Set value to VERR_NOT_SUPPORTED before calling.
- */
-#define VBOX_VBVA_CONF32_GUEST_CURSOR_REPORTING 3
-/*
- * Returns the currently available host cursor capabilities. Available if
- * VBOX_VBVA_CONF32_GUEST_CURSOR_REPORTING returns success.
- */
-#define VBOX_VBVA_CONF32_CURSOR_CAPABILITIES 4
-/* Returns the supported flags in vbva_infoscreen.flags. */
-#define VBOX_VBVA_CONF32_SCREEN_FLAGS 5
-/* Returns the max size of VBVA record. */
-#define VBOX_VBVA_CONF32_MAX_RECORD_SIZE 6
-
-struct vbva_conf32 {
- u32 index;
- u32 value;
-} __packed;
-
-/* Reserved for historical reasons. */
-#define VBOX_VBVA_CURSOR_CAPABILITY_RESERVED0 BIT(0)
-/*
- * Guest cursor capability: can the host show a hardware cursor at the host
- * pointer location?
- */
-#define VBOX_VBVA_CURSOR_CAPABILITY_HARDWARE BIT(1)
-/* Reserved for historical reasons. */
-#define VBOX_VBVA_CURSOR_CAPABILITY_RESERVED2 BIT(2)
-/* Reserved for historical reasons. Must always be unset. */
-#define VBOX_VBVA_CURSOR_CAPABILITY_RESERVED3 BIT(3)
-/* Reserved for historical reasons. */
-#define VBOX_VBVA_CURSOR_CAPABILITY_RESERVED4 BIT(4)
-/* Reserved for historical reasons. */
-#define VBOX_VBVA_CURSOR_CAPABILITY_RESERVED5 BIT(5)
-
-struct vbva_infoview {
- /* Index of the screen, assigned by the guest. */
- u32 view_index;
-
- /* The screen offset in VRAM, the framebuffer starts here. */
- u32 view_offset;
-
- /* The size of the VRAM memory that can be used for the view. */
- u32 view_size;
-
- /* The recommended maximum size of the VRAM memory for the screen. */
- u32 max_screen_size;
-} __packed;
-
-struct vbva_flush {
- u32 reserved;
-} __packed;
-
-/* vbva_infoscreen.flags */
-#define VBVA_SCREEN_F_NONE 0x0000
-#define VBVA_SCREEN_F_ACTIVE 0x0001
-/*
- * The virtual monitor has been disabled by the guest and should be removed
- * by the host and ignored for purposes of pointer position calculation.
- */
-#define VBVA_SCREEN_F_DISABLED 0x0002
-/*
- * The virtual monitor has been blanked by the guest and should be blacked
- * out by the host using width, height, etc values from the vbva_infoscreen
- * request.
- */
-#define VBVA_SCREEN_F_BLANK 0x0004
-/*
- * The virtual monitor has been blanked by the guest and should be blacked
- * out by the host using the previous mode values for width. height, etc.
- */
-#define VBVA_SCREEN_F_BLANK2 0x0008
-
-struct vbva_infoscreen {
- /* Which view contains the screen. */
- u32 view_index;
-
- /* Physical X origin relative to the primary screen. */
- s32 origin_x;
-
- /* Physical Y origin relative to the primary screen. */
- s32 origin_y;
-
- /* Offset of visible framebuffer relative to the framebuffer start. */
- u32 start_offset;
-
- /* The scan line size in bytes. */
- u32 line_size;
-
- /* Width of the screen. */
- u32 width;
-
- /* Height of the screen. */
- u32 height;
-
- /* Color depth. */
- u16 bits_per_pixel;
-
- /* VBVA_SCREEN_F_* */
- u16 flags;
-} __packed;
-
-/* vbva_enable.flags */
-#define VBVA_F_NONE 0x00000000
-#define VBVA_F_ENABLE 0x00000001
-#define VBVA_F_DISABLE 0x00000002
-/* extended VBVA to be used with WDDM */
-#define VBVA_F_EXTENDED 0x00000004
-/* vbva offset is absolute VRAM offset */
-#define VBVA_F_ABSOFFSET 0x00000008
-
-struct vbva_enable {
- u32 flags;
- u32 offset;
- s32 result;
-} __packed;
-
-struct vbva_enable_ex {
- struct vbva_enable base;
- u32 screen_id;
-} __packed;
-
-struct vbva_mouse_pointer_shape {
- /* The host result. */
- s32 result;
-
- /* VBOX_MOUSE_POINTER_* bit flags. */
- u32 flags;
-
- /* X coordinate of the hot spot. */
- u32 hot_X;
-
- /* Y coordinate of the hot spot. */
- u32 hot_y;
-
- /* Width of the pointer in pixels. */
- u32 width;
-
- /* Height of the pointer in scanlines. */
- u32 height;
-
- /* Pointer data.
- *
- * The data consists of 1 bpp AND mask followed by 32 bpp XOR (color)
- * mask.
- *
- * For pointers without alpha channel the XOR mask pixels are 32 bit
- * values: (lsb)BGR0(msb). For pointers with alpha channel the XOR mask
- * consists of (lsb)BGRA(msb) 32 bit values.
- *
- * Guest driver must create the AND mask for pointers with alpha chan.,
- * so if host does not support alpha, the pointer could be displayed as
- * a normal color pointer. The AND mask can be constructed from alpha
- * values. For example alpha value >= 0xf0 means bit 0 in the AND mask.
- *
- * The AND mask is 1 bpp bitmap with byte aligned scanlines. Size of AND
- * mask, therefore, is and_len = (width + 7) / 8 * height. The padding
- * bits at the end of any scanline are undefined.
- *
- * The XOR mask follows the AND mask on the next 4 bytes aligned offset:
- * u8 *xor = and + (and_len + 3) & ~3
- * Bytes in the gap between the AND and the XOR mask are undefined.
- * XOR mask scanlines have no gap between them and size of XOR mask is:
- * xor_len = width * 4 * height.
- *
- * Preallocate 4 bytes for accessing actual data as p->data.
- */
- u8 data[4];
-} __packed;
-
-/* pointer is visible */
-#define VBOX_MOUSE_POINTER_VISIBLE 0x0001
-/* pointer has alpha channel */
-#define VBOX_MOUSE_POINTER_ALPHA 0x0002
-/* pointerData contains new pointer shape */
-#define VBOX_MOUSE_POINTER_SHAPE 0x0004
-
-/*
- * The guest driver can handle asynch guest cmd completion by reading the
- * command offset from io port.
- */
-#define VBVACAPS_COMPLETEGCMD_BY_IOREAD 0x00000001
-/* the guest driver can handle video adapter IRQs */
-#define VBVACAPS_IRQ 0x00000002
-/* The guest can read video mode hints sent via VBVA. */
-#define VBVACAPS_VIDEO_MODE_HINTS 0x00000004
-/* The guest can switch to a software cursor on demand. */
-#define VBVACAPS_DISABLE_CURSOR_INTEGRATION 0x00000008
-/* The guest does not depend on host handling the VBE registers. */
-#define VBVACAPS_USE_VBVA_ONLY 0x00000010
-
-struct vbva_caps {
- s32 rc;
- u32 caps;
-} __packed;
-
-/* Query the most recent mode hints received from the host. */
-struct vbva_query_mode_hints {
- /* The maximum number of screens to return hints for. */
- u16 hints_queried_count;
- /* The size of the mode hint structures directly following this one. */
- u16 hint_structure_guest_size;
- /* Return code for the operation. Initialise to VERR_NOT_SUPPORTED. */
- s32 rc;
-} __packed;
-
-/*
- * Structure in which a mode hint is returned. The guest allocates an array
- * of these immediately after the vbva_query_mode_hints structure.
- * To accommodate future extensions, the vbva_query_mode_hints structure
- * specifies the size of the vbva_modehint structures allocated by the guest,
- * and the host only fills out structure elements which fit into that size. The
- * host should fill any unused members (e.g. dx, dy) or structure space on the
- * end with ~0. The whole structure can legally be set to ~0 to skip a screen.
- */
-struct vbva_modehint {
- u32 magic;
- u32 cx;
- u32 cy;
- u32 bpp; /* Which has never been used... */
- u32 display;
- u32 dx; /* X offset into the virtual frame-buffer. */
- u32 dy; /* Y offset into the virtual frame-buffer. */
- u32 enabled; /* Not flags. Add new members for new flags. */
-} __packed;
-
-#define VBVAMODEHINT_MAGIC 0x0801add9u
-
-/*
- * Report the rectangle relative to which absolute pointer events should be
- * expressed. This information remains valid until the next VBVA resize event
- * for any screen, at which time it is reset to the bounding rectangle of all
- * virtual screens and must be re-set.
- */
-struct vbva_report_input_mapping {
- s32 x; /* Upper left X co-ordinate relative to the first screen. */
- s32 y; /* Upper left Y co-ordinate relative to the first screen. */
- u32 cx; /* Rectangle width. */
- u32 cy; /* Rectangle height. */
-} __packed;
-
-/*
- * Report the guest cursor position and query the host one. The host may wish
- * to use the guest information to re-position its own cursor (though this is
- * currently unlikely).
- */
-struct vbva_cursor_position {
- u32 report_position; /* Are we reporting a position? */
- u32 x; /* Guest cursor X position */
- u32 y; /* Guest cursor Y position */
-} __packed;
-
-#endif
+++ /dev/null
-/* SPDX-License-Identifier: MIT */
-/* Copyright (C) 2006-2016 Oracle Corporation */
-
-#ifndef __VBOXVIDEO_GUEST_H__
-#define __VBOXVIDEO_GUEST_H__
-
-#include <linux/genalloc.h>
-#include "vboxvideo.h"
-
-/*
- * Structure grouping the context needed for sending graphics acceleration
- * information to the host via VBVA. Each screen has its own VBVA buffer.
- */
-struct vbva_buf_ctx {
- /* Offset of the buffer in the VRAM section for the screen */
- u32 buffer_offset;
- /* Length of the buffer in bytes */
- u32 buffer_length;
- /* Set if we wrote to the buffer faster than the host could read it */
- bool buffer_overflow;
- /* VBVA record that we are currently preparing for the host, or NULL */
- struct vbva_record *record;
- /*
- * Pointer to the VBVA buffer mapped into the current address space.
- * Will be NULL if VBVA is not enabled.
- */
- struct vbva_buffer *vbva;
-};
-
-int hgsmi_report_flags_location(struct gen_pool *ctx, u32 location);
-int hgsmi_send_caps_info(struct gen_pool *ctx, u32 caps);
-int hgsmi_test_query_conf(struct gen_pool *ctx);
-int hgsmi_query_conf(struct gen_pool *ctx, u32 index, u32 *value_ret);
-int hgsmi_update_pointer_shape(struct gen_pool *ctx, u32 flags,
- u32 hot_x, u32 hot_y, u32 width, u32 height,
- u8 *pixels, u32 len);
-int hgsmi_cursor_position(struct gen_pool *ctx, bool report_position,
- u32 x, u32 y, u32 *x_host, u32 *y_host);
-
-bool vbva_enable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
- struct vbva_buffer *vbva, s32 screen);
-void vbva_disable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
- s32 screen);
-bool vbva_buffer_begin_update(struct vbva_buf_ctx *vbva_ctx,
- struct gen_pool *ctx);
-void vbva_buffer_end_update(struct vbva_buf_ctx *vbva_ctx);
-bool vbva_write(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
- const void *p, u32 len);
-void vbva_setup_buffer_context(struct vbva_buf_ctx *vbva_ctx,
- u32 buffer_offset, u32 buffer_length);
-
-void hgsmi_process_display_info(struct gen_pool *ctx, u32 display,
- s32 origin_x, s32 origin_y, u32 start_offset,
- u32 pitch, u32 width, u32 height,
- u16 bpp, u16 flags);
-int hgsmi_update_input_mapping(struct gen_pool *ctx, s32 origin_x, s32 origin_y,
- u32 width, u32 height);
-int hgsmi_get_mode_hints(struct gen_pool *ctx, unsigned int screens,
- struct vbva_modehint *hints);
-
-#endif
+++ /dev/null
-/* SPDX-License-Identifier: MIT */
-/* Copyright (C) 2006-2016 Oracle Corporation */
-
-#ifndef __VBOXVIDEO_VBE_H__
-#define __VBOXVIDEO_VBE_H__
-
-/* GUEST <-> HOST Communication API */
-
-#define VBE_DISPI_BANK_ADDRESS 0xA0000
-#define VBE_DISPI_BANK_SIZE_KB 64
-
-#define VBE_DISPI_MAX_XRES 16384
-#define VBE_DISPI_MAX_YRES 16384
-#define VBE_DISPI_MAX_BPP 32
-
-#define VBE_DISPI_IOPORT_INDEX 0x01CE
-#define VBE_DISPI_IOPORT_DATA 0x01CF
-
-#define VBE_DISPI_IOPORT_DAC_WRITE_INDEX 0x03C8
-#define VBE_DISPI_IOPORT_DAC_DATA 0x03C9
-
-#define VBE_DISPI_INDEX_ID 0x0
-#define VBE_DISPI_INDEX_XRES 0x1
-#define VBE_DISPI_INDEX_YRES 0x2
-#define VBE_DISPI_INDEX_BPP 0x3
-#define VBE_DISPI_INDEX_ENABLE 0x4
-#define VBE_DISPI_INDEX_BANK 0x5
-#define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
-#define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
-#define VBE_DISPI_INDEX_X_OFFSET 0x8
-#define VBE_DISPI_INDEX_Y_OFFSET 0x9
-#define VBE_DISPI_INDEX_VBOX_VIDEO 0xa
-#define VBE_DISPI_INDEX_FB_BASE_HI 0xb
-
-#define VBE_DISPI_ID0 0xB0C0
-#define VBE_DISPI_ID1 0xB0C1
-#define VBE_DISPI_ID2 0xB0C2
-#define VBE_DISPI_ID3 0xB0C3
-#define VBE_DISPI_ID4 0xB0C4
-
-#define VBE_DISPI_ID_VBOX_VIDEO 0xBE00
-/* The VBOX interface id. Indicates support for VBVA shared memory interface. */
-#define VBE_DISPI_ID_HGSMI 0xBE01
-#define VBE_DISPI_ID_ANYX 0xBE02
-
-#define VBE_DISPI_DISABLED 0x00
-#define VBE_DISPI_ENABLED 0x01
-#define VBE_DISPI_GETCAPS 0x02
-#define VBE_DISPI_8BIT_DAC 0x20
-
-#define VGA_PORT_HGSMI_HOST 0x3b0
-#define VGA_PORT_HGSMI_GUEST 0x3d0
-
-#endif
+++ /dev/null
-// SPDX-License-Identifier: MIT
-/* Copyright (C) 2006-2017 Oracle Corporation */
-
-#include <linux/vbox_err.h>
-#include "vbox_drv.h"
-#include "vboxvideo_guest.h"
-#include "hgsmi_channels.h"
-
-/*
- * There is a hardware ring buffer in the graphics device video RAM, formerly
- * in the VBox VMMDev PCI memory space.
- * All graphics commands go there serialized by vbva_buffer_begin_update.
- * and vbva_buffer_end_update.
- *
- * free_offset is writing position. data_offset is reading position.
- * free_offset == data_offset means buffer is empty.
- * There must be always gap between data_offset and free_offset when data
- * are in the buffer.
- * Guest only changes free_offset, host changes data_offset.
- */
-
-static u32 vbva_buffer_available(const struct vbva_buffer *vbva)
-{
- s32 diff = vbva->data_offset - vbva->free_offset;
-
- return diff > 0 ? diff : vbva->data_len + diff;
-}
-
-static void vbva_buffer_place_data_at(struct vbva_buf_ctx *vbva_ctx,
- const void *p, u32 len, u32 offset)
-{
- struct vbva_buffer *vbva = vbva_ctx->vbva;
- u32 bytes_till_boundary = vbva->data_len - offset;
- u8 *dst = &vbva->data[offset];
- s32 diff = len - bytes_till_boundary;
-
- if (diff <= 0) {
- /* Chunk will not cross buffer boundary. */
- memcpy(dst, p, len);
- } else {
- /* Chunk crosses buffer boundary. */
- memcpy(dst, p, bytes_till_boundary);
- memcpy(&vbva->data[0], (u8 *)p + bytes_till_boundary, diff);
- }
-}
-
-static void vbva_buffer_flush(struct gen_pool *ctx)
-{
- struct vbva_flush *p;
-
- p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA, VBVA_FLUSH);
- if (!p)
- return;
-
- p->reserved = 0;
-
- hgsmi_buffer_submit(ctx, p);
- hgsmi_buffer_free(ctx, p);
-}
-
-bool vbva_write(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
- const void *p, u32 len)
-{
- struct vbva_record *record;
- struct vbva_buffer *vbva;
- u32 available;
-
- vbva = vbva_ctx->vbva;
- record = vbva_ctx->record;
-
- if (!vbva || vbva_ctx->buffer_overflow ||
- !record || !(record->len_and_flags & VBVA_F_RECORD_PARTIAL))
- return false;
-
- available = vbva_buffer_available(vbva);
-
- while (len > 0) {
- u32 chunk = len;
-
- if (chunk >= available) {
- vbva_buffer_flush(ctx);
- available = vbva_buffer_available(vbva);
- }
-
- if (chunk >= available) {
- if (WARN_ON(available <= vbva->partial_write_tresh)) {
- vbva_ctx->buffer_overflow = true;
- return false;
- }
- chunk = available - vbva->partial_write_tresh;
- }
-
- vbva_buffer_place_data_at(vbva_ctx, p, chunk,
- vbva->free_offset);
-
- vbva->free_offset = (vbva->free_offset + chunk) %
- vbva->data_len;
- record->len_and_flags += chunk;
- available -= chunk;
- len -= chunk;
- p += chunk;
- }
-
- return true;
-}
-
-static bool vbva_inform_host(struct vbva_buf_ctx *vbva_ctx,
- struct gen_pool *ctx, s32 screen, bool enable)
-{
- struct vbva_enable_ex *p;
- bool ret;
-
- p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA, VBVA_ENABLE);
- if (!p)
- return false;
-
- p->base.flags = enable ? VBVA_F_ENABLE : VBVA_F_DISABLE;
- p->base.offset = vbva_ctx->buffer_offset;
- p->base.result = VERR_NOT_SUPPORTED;
- if (screen >= 0) {
- p->base.flags |= VBVA_F_EXTENDED | VBVA_F_ABSOFFSET;
- p->screen_id = screen;
- }
-
- hgsmi_buffer_submit(ctx, p);
-
- if (enable)
- ret = p->base.result >= 0;
- else
- ret = true;
-
- hgsmi_buffer_free(ctx, p);
-
- return ret;
-}
-
-bool vbva_enable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
- struct vbva_buffer *vbva, s32 screen)
-{
- bool ret = false;
-
- memset(vbva, 0, sizeof(*vbva));
- vbva->partial_write_tresh = 256;
- vbva->data_len = vbva_ctx->buffer_length - sizeof(struct vbva_buffer);
- vbva_ctx->vbva = vbva;
-
- ret = vbva_inform_host(vbva_ctx, ctx, screen, true);
- if (!ret)
- vbva_disable(vbva_ctx, ctx, screen);
-
- return ret;
-}
-
-void vbva_disable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
- s32 screen)
-{
- vbva_ctx->buffer_overflow = false;
- vbva_ctx->record = NULL;
- vbva_ctx->vbva = NULL;
-
- vbva_inform_host(vbva_ctx, ctx, screen, false);
-}
-
-bool vbva_buffer_begin_update(struct vbva_buf_ctx *vbva_ctx,
- struct gen_pool *ctx)
-{
- struct vbva_record *record;
- u32 next;
-
- if (!vbva_ctx->vbva ||
- !(vbva_ctx->vbva->host_flags.host_events & VBVA_F_MODE_ENABLED))
- return false;
-
- WARN_ON(vbva_ctx->buffer_overflow || vbva_ctx->record);
-
- next = (vbva_ctx->vbva->record_free_index + 1) % VBVA_MAX_RECORDS;
-
- /* Flush if all slots in the records queue are used */
- if (next == vbva_ctx->vbva->record_first_index)
- vbva_buffer_flush(ctx);
-
- /* If even after flush there is no place then fail the request */
- if (next == vbva_ctx->vbva->record_first_index)
- return false;
-
- record = &vbva_ctx->vbva->records[vbva_ctx->vbva->record_free_index];
- record->len_and_flags = VBVA_F_RECORD_PARTIAL;
- vbva_ctx->vbva->record_free_index = next;
- /* Remember which record we are using. */
- vbva_ctx->record = record;
-
- return true;
-}
-
-void vbva_buffer_end_update(struct vbva_buf_ctx *vbva_ctx)
-{
- struct vbva_record *record = vbva_ctx->record;
-
- WARN_ON(!vbva_ctx->vbva || !record ||
- !(record->len_and_flags & VBVA_F_RECORD_PARTIAL));
-
- /* Mark the record completed. */
- record->len_and_flags &= ~VBVA_F_RECORD_PARTIAL;
-
- vbva_ctx->buffer_overflow = false;
- vbva_ctx->record = NULL;
-}
-
-void vbva_setup_buffer_context(struct vbva_buf_ctx *vbva_ctx,
- u32 buffer_offset, u32 buffer_length)
-{
- vbva_ctx->buffer_offset = buffer_offset;
- vbva_ctx->buffer_length = buffer_length;
-}
projects / mirror_ubuntu-jammy-kernel.git / commitdiff