[mirror_ubuntu-bionic-kernel.git] / drivers / gpu / drm / nouveau / nouveau_fbcon.c

/*
 * Copyright © 2007 David Airlie
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 * Authors:
 *     David Airlie
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/tty.h>
#include <linux/sysrq.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/screen_info.h>
#include <linux/vga_switcheroo.h>

#include "drmP.h"
#include "drm.h"
#include "drm_crtc.h"
#include "drm_crtc_helper.h"
#include "drm_fb_helper.h"
#include "nouveau_drv.h"
#include "nouveau_drm.h"
#include "nouveau_crtc.h"
#include "nouveau_fb.h"
#include "nouveau_fbcon.h"
#include "nouveau_dma.h"

static int
nouveau_fbcon_sync(struct fb_info *info)
{
	struct nouveau_fbcon_par *par = info->par;
	struct drm_device *dev = par->dev;
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct nouveau_channel *chan = dev_priv->channel;
	int ret, i;

	if (!chan || !chan->accel_done ||
	    info->state != FBINFO_STATE_RUNNING ||
	    info->flags & FBINFO_HWACCEL_DISABLED)
		return 0;

	if (RING_SPACE(chan, 4)) {
		nouveau_fbcon_gpu_lockup(info);
		return 0;
	}

	BEGIN_RING(chan, 0, 0x0104, 1);
	OUT_RING(chan, 0);
	BEGIN_RING(chan, 0, 0x0100, 1);
	OUT_RING(chan, 0);
	nouveau_bo_wr32(chan->notifier_bo, chan->m2mf_ntfy + 3, 0xffffffff);
	FIRE_RING(chan);

	ret = -EBUSY;
	for (i = 0; i < 100000; i++) {
		if (!nouveau_bo_rd32(chan->notifier_bo, chan->m2mf_ntfy + 3)) {
			ret = 0;
			break;
		}
		DRM_UDELAY(1);
	}

	if (ret) {
		nouveau_fbcon_gpu_lockup(info);
		return 0;
	}

	chan->accel_done = false;
	return 0;
}

static struct fb_ops nouveau_fbcon_ops = {
	.owner = THIS_MODULE,
	.fb_check_var = drm_fb_helper_check_var,
	.fb_set_par = drm_fb_helper_set_par,
	.fb_setcolreg = drm_fb_helper_setcolreg,
	.fb_fillrect = cfb_fillrect,
	.fb_copyarea = cfb_copyarea,
	.fb_imageblit = cfb_imageblit,
	.fb_sync = nouveau_fbcon_sync,
	.fb_pan_display = drm_fb_helper_pan_display,
	.fb_blank = drm_fb_helper_blank,
	.fb_setcmap = drm_fb_helper_setcmap,
};

static struct fb_ops nv04_fbcon_ops = {
	.owner = THIS_MODULE,
	.fb_check_var = drm_fb_helper_check_var,
	.fb_set_par = drm_fb_helper_set_par,
	.fb_setcolreg = drm_fb_helper_setcolreg,
	.fb_fillrect = nv04_fbcon_fillrect,
	.fb_copyarea = nv04_fbcon_copyarea,
	.fb_imageblit = nv04_fbcon_imageblit,
	.fb_sync = nouveau_fbcon_sync,
	.fb_pan_display = drm_fb_helper_pan_display,
	.fb_blank = drm_fb_helper_blank,
	.fb_setcmap = drm_fb_helper_setcmap,
};

static struct fb_ops nv50_fbcon_ops = {
	.owner = THIS_MODULE,
	.fb_check_var = drm_fb_helper_check_var,
	.fb_set_par = drm_fb_helper_set_par,
	.fb_setcolreg = drm_fb_helper_setcolreg,
	.fb_fillrect = nv50_fbcon_fillrect,
	.fb_copyarea = nv50_fbcon_copyarea,
	.fb_imageblit = nv50_fbcon_imageblit,
	.fb_sync = nouveau_fbcon_sync,
	.fb_pan_display = drm_fb_helper_pan_display,
	.fb_blank = drm_fb_helper_blank,
	.fb_setcmap = drm_fb_helper_setcmap,
};

static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
				    u16 blue, int regno)
{
	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);

	nv_crtc->lut.r[regno] = red;
	nv_crtc->lut.g[regno] = green;
	nv_crtc->lut.b[regno] = blue;
}

static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
				    u16 *blue, int regno)
{
	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);

	*red = nv_crtc->lut.r[regno];
	*green = nv_crtc->lut.g[regno];
	*blue = nv_crtc->lut.b[regno];
}

static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = {
	.gamma_set = nouveau_fbcon_gamma_set,
	.gamma_get = nouveau_fbcon_gamma_get
};

#if defined(__i386__) || defined(__x86_64__)
static bool
nouveau_fbcon_has_vesafb_or_efifb(struct drm_device *dev)
{
	struct pci_dev *pdev = dev->pdev;
	int ramin;

	if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB &&
	    screen_info.orig_video_isVGA != VIDEO_TYPE_EFI)
		return false;

	if (screen_info.lfb_base < pci_resource_start(pdev, 1))
		goto not_fb;

	if (screen_info.lfb_base + screen_info.lfb_size >=
	    pci_resource_start(pdev, 1) + pci_resource_len(pdev, 1))
		goto not_fb;

	return true;
not_fb:
	ramin = 2;
	if (pci_resource_len(pdev, ramin) == 0) {
		ramin = 3;
		if (pci_resource_len(pdev, ramin) == 0)
			return false;
	}

	if (screen_info.lfb_base < pci_resource_start(pdev, ramin))
		return false;

	if (screen_info.lfb_base + screen_info.lfb_size >=
	    pci_resource_start(pdev, ramin) + pci_resource_len(pdev, ramin))
		return false;

	return true;
}
#endif

void
nouveau_fbcon_zfill(struct drm_device *dev)
{
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct fb_info *info = dev_priv->fbdev_info;
	struct fb_fillrect rect;

	/* Clear the entire fbcon.  The drm will program every connector
	 * with it's preferred mode.  If the sizes differ, one display will
	 * quite likely have garbage around the console.
	 */
	rect.dx = rect.dy = 0;
	rect.width = info->var.xres_virtual;
	rect.height = info->var.yres_virtual;
	rect.color = 0;
	rect.rop = ROP_COPY;
	info->fbops->fb_fillrect(info, &rect);
}

static int
nouveau_fbcon_create(struct drm_device *dev, uint32_t fb_width,
		     uint32_t fb_height, uint32_t surface_width,
		     uint32_t surface_height, uint32_t surface_depth,
		     uint32_t surface_bpp, struct drm_framebuffer **pfb)
{
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct fb_info *info;
	struct nouveau_fbcon_par *par;
	struct drm_framebuffer *fb;
	struct nouveau_framebuffer *nouveau_fb;
	struct nouveau_bo *nvbo;
	struct drm_mode_fb_cmd mode_cmd;
	struct device *device = &dev->pdev->dev;
	int size, ret;

	mode_cmd.width = surface_width;
	mode_cmd.height = surface_height;

	mode_cmd.bpp = surface_bpp;
	mode_cmd.pitch = mode_cmd.width * (mode_cmd.bpp >> 3);
	mode_cmd.pitch = roundup(mode_cmd.pitch, 256);
	mode_cmd.depth = surface_depth;

	size = mode_cmd.pitch * mode_cmd.height;
	size = roundup(size, PAGE_SIZE);

	ret = nouveau_gem_new(dev, dev_priv->channel, size, 0, TTM_PL_FLAG_VRAM,
			      0, 0x0000, false, true, &nvbo);
	if (ret) {
		NV_ERROR(dev, "failed to allocate framebuffer\n");
		goto out;
	}

	ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM);
	if (ret) {
		NV_ERROR(dev, "failed to pin fb: %d\n", ret);
		nouveau_bo_ref(NULL, &nvbo);
		goto out;
	}

	ret = nouveau_bo_map(nvbo);
	if (ret) {
		NV_ERROR(dev, "failed to map fb: %d\n", ret);
		nouveau_bo_unpin(nvbo);
		nouveau_bo_ref(NULL, &nvbo);
		goto out;
	}

	mutex_lock(&dev->struct_mutex);

	fb = nouveau_framebuffer_create(dev, nvbo, &mode_cmd);
	if (!fb) {
		ret = -ENOMEM;
		NV_ERROR(dev, "failed to allocate fb.\n");
		goto out_unref;
	}

	list_add(&fb->filp_head, &dev->mode_config.fb_kernel_list);

	nouveau_fb = nouveau_framebuffer(fb);
	*pfb = fb;

	info = framebuffer_alloc(sizeof(struct nouveau_fbcon_par), device);
	if (!info) {
		ret = -ENOMEM;
		goto out_unref;
	}

	par = info->par;
	par->helper.funcs = &nouveau_fbcon_helper_funcs;
	par->helper.dev = dev;
	ret = drm_fb_helper_init_crtc_count(&par->helper, 2, 4);
	if (ret)
		goto out_unref;
	dev_priv->fbdev_info = info;

	strcpy(info->fix.id, "nouveaufb");
	if (nouveau_nofbaccel)
		info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED;
	else
		info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
			      FBINFO_HWACCEL_FILLRECT |
			      FBINFO_HWACCEL_IMAGEBLIT;
	info->fbops = &nouveau_fbcon_ops;
	info->fix.smem_start = dev->mode_config.fb_base + nvbo->bo.offset -
			       dev_priv->vm_vram_base;
	info->fix.smem_len = size;

	info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo);
	info->screen_size = size;

	drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
	drm_fb_helper_fill_var(info, fb, fb_width, fb_height);

	/* FIXME: we really shouldn't expose mmio space at all */
	info->fix.mmio_start = pci_resource_start(dev->pdev, 1);
	info->fix.mmio_len = pci_resource_len(dev->pdev, 1);

	/* Set aperture base/size for vesafb takeover */
#if defined(__i386__) || defined(__x86_64__)
	if (nouveau_fbcon_has_vesafb_or_efifb(dev)) {
		/* Some NVIDIA VBIOS' are stupid and decide to put the
		 * framebuffer in the middle of the PRAMIN BAR for
		 * whatever reason.  We need to know the exact lfb_base
		 * to get vesafb kicked off, and the only reliable way
		 * we have left is to find out lfb_base the same way
		 * vesafb did.
		 */
		info->aperture_base = screen_info.lfb_base;
		info->aperture_size = screen_info.lfb_size;
		if (screen_info.orig_video_isVGA == VIDEO_TYPE_VLFB)
			info->aperture_size *= 65536;
	} else
#endif
	{
		info->aperture_base = info->fix.mmio_start;
		info->aperture_size = info->fix.mmio_len;
	}

	info->pixmap.size = 64*1024;
	info->pixmap.buf_align = 8;
	info->pixmap.access_align = 32;
	info->pixmap.flags = FB_PIXMAP_SYSTEM;
	info->pixmap.scan_align = 1;

	fb->fbdev = info;

	par->nouveau_fb = nouveau_fb;
	par->dev = dev;

	if (dev_priv->channel && !nouveau_nofbaccel) {
		switch (dev_priv->card_type) {
		case NV_50:
			nv50_fbcon_accel_init(info);
			info->fbops = &nv50_fbcon_ops;
			break;
		default:
			nv04_fbcon_accel_init(info);
			info->fbops = &nv04_fbcon_ops;
			break;
		};
	}

	nouveau_fbcon_zfill(dev);

	/* To allow resizeing without swapping buffers */
	NV_INFO(dev, "allocated %dx%d fb: 0x%lx, bo %p\n",
						nouveau_fb->base.width,
						nouveau_fb->base.height,
						nvbo->bo.offset, nvbo);

	mutex_unlock(&dev->struct_mutex);
	vga_switcheroo_client_fb_set(dev->pdev, info);
	return 0;

out_unref:
	mutex_unlock(&dev->struct_mutex);
out:
	return ret;
}

int
nouveau_fbcon_probe(struct drm_device *dev)
{
	NV_DEBUG_KMS(dev, "\n");

	return drm_fb_helper_single_fb_probe(dev, 32, nouveau_fbcon_create);
}

int
nouveau_fbcon_remove(struct drm_device *dev, struct drm_framebuffer *fb)
{
	struct nouveau_framebuffer *nouveau_fb = nouveau_framebuffer(fb);
	struct fb_info *info;

	if (!fb)
		return -EINVAL;

	info = fb->fbdev;
	if (info) {
		struct nouveau_fbcon_par *par = info->par;

		unregister_framebuffer(info);
		nouveau_bo_unmap(nouveau_fb->nvbo);
		drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem);
		nouveau_fb->nvbo = NULL;
		if (par)
			drm_fb_helper_free(&par->helper);
		framebuffer_release(info);
	}

	return 0;
}

void nouveau_fbcon_gpu_lockup(struct fb_info *info)
{
	struct nouveau_fbcon_par *par = info->par;
	struct drm_device *dev = par->dev;

	NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
	info->flags |= FBINFO_HWACCEL_DISABLED;
}
Commit	Line	Data
6ee73861 BS	1	/*
	2	* Copyright © 2007 David Airlie
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice (including the next
	12	* paragraph) shall be included in all copies or substantial portions of the
	13	* Software.
	14	*
	15	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	16	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	17	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	18	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	19	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
	20	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
	21	* DEALINGS IN THE SOFTWARE.
	22	*
	23	* Authors:
	24	* David Airlie
	25	*/
	26
	27	#include <linux/module.h>
	28	#include <linux/kernel.h>
	29	#include <linux/errno.h>
	30	#include <linux/string.h>
	31	#include <linux/mm.h>
	32	#include <linux/tty.h>
6ee73861 BS	33	#include <linux/sysrq.h>
	34	#include <linux/delay.h>
	35	#include <linux/fb.h>
	36	#include <linux/init.h>
	37	#include <linux/screen_info.h>
6a9ee8af	38	#include <linux/vga_switcheroo.h>
6ee73861 BS	39
	40	#include "drmP.h"
	41	#include "drm.h"
	42	#include "drm_crtc.h"
	43	#include "drm_crtc_helper.h"
	44	#include "drm_fb_helper.h"
	45	#include "nouveau_drv.h"
	46	#include "nouveau_drm.h"
	47	#include "nouveau_crtc.h"
	48	#include "nouveau_fb.h"
	49	#include "nouveau_fbcon.h"
	50	#include "nouveau_dma.h"
	51
	52	static int
	53	nouveau_fbcon_sync(struct fb_info *info)
	54	{
	55	struct nouveau_fbcon_par *par = info->par;
	56	struct drm_device *dev = par->dev;
	57	struct drm_nouveau_private *dev_priv = dev->dev_private;
	58	struct nouveau_channel *chan = dev_priv->channel;
	59	int ret, i;
	60
0735f62e	61	if (!chan \|\| !chan->accel_done \|\|
6ee73861 BS	62	info->state != FBINFO_STATE_RUNNING \|\|
	63	info->flags & FBINFO_HWACCEL_DISABLED)
	64	return 0;
	65
	66	if (RING_SPACE(chan, 4)) {
846975a9	67	nouveau_fbcon_gpu_lockup(info);
6ee73861 BS	68	return 0;
	69	}
	70
	71	BEGIN_RING(chan, 0, 0x0104, 1);
	72	OUT_RING(chan, 0);
	73	BEGIN_RING(chan, 0, 0x0100, 1);
	74	OUT_RING(chan, 0);
	75	nouveau_bo_wr32(chan->notifier_bo, chan->m2mf_ntfy + 3, 0xffffffff);
	76	FIRE_RING(chan);
	77
	78	ret = -EBUSY;
	79	for (i = 0; i < 100000; i++) {
	80	if (!nouveau_bo_rd32(chan->notifier_bo, chan->m2mf_ntfy + 3)) {
	81	ret = 0;
	82	break;
	83	}
	84	DRM_UDELAY(1);
	85	}
	86
	87	if (ret) {
846975a9	88	nouveau_fbcon_gpu_lockup(info);
6ee73861 BS	89	return 0;
	90	}
	91
	92	chan->accel_done = false;
	93	return 0;
	94	}
	95
	96	static struct fb_ops nouveau_fbcon_ops = {
	97	.owner = THIS_MODULE,
	98	.fb_check_var = drm_fb_helper_check_var,
	99	.fb_set_par = drm_fb_helper_set_par,
	100	.fb_setcolreg = drm_fb_helper_setcolreg,
	101	.fb_fillrect = cfb_fillrect,
	102	.fb_copyarea = cfb_copyarea,
	103	.fb_imageblit = cfb_imageblit,
	104	.fb_sync = nouveau_fbcon_sync,
	105	.fb_pan_display = drm_fb_helper_pan_display,
	106	.fb_blank = drm_fb_helper_blank,
	107	.fb_setcmap = drm_fb_helper_setcmap,
	108	};
	109
126b5440 MK	110	static struct fb_ops nv04_fbcon_ops = {
	111	.owner = THIS_MODULE,
	112	.fb_check_var = drm_fb_helper_check_var,
	113	.fb_set_par = drm_fb_helper_set_par,
	114	.fb_setcolreg = drm_fb_helper_setcolreg,
	115	.fb_fillrect = nv04_fbcon_fillrect,
	116	.fb_copyarea = nv04_fbcon_copyarea,
	117	.fb_imageblit = nv04_fbcon_imageblit,
	118	.fb_sync = nouveau_fbcon_sync,
	119	.fb_pan_display = drm_fb_helper_pan_display,
	120	.fb_blank = drm_fb_helper_blank,
	121	.fb_setcmap = drm_fb_helper_setcmap,
	122	};
	123
	124	static struct fb_ops nv50_fbcon_ops = {
	125	.owner = THIS_MODULE,
	126	.fb_check_var = drm_fb_helper_check_var,
	127	.fb_set_par = drm_fb_helper_set_par,
	128	.fb_setcolreg = drm_fb_helper_setcolreg,
	129	.fb_fillrect = nv50_fbcon_fillrect,
	130	.fb_copyarea = nv50_fbcon_copyarea,
	131	.fb_imageblit = nv50_fbcon_imageblit,
	132	.fb_sync = nouveau_fbcon_sync,
	133	.fb_pan_display = drm_fb_helper_pan_display,
	134	.fb_blank = drm_fb_helper_blank,
	135	.fb_setcmap = drm_fb_helper_setcmap,
	136	};
	137
6ee73861 BS	138	static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
	139	u16 blue, int regno)
	140	{
	141	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
	142
	143	nv_crtc->lut.r[regno] = red;
	144	nv_crtc->lut.g[regno] = green;
	145	nv_crtc->lut.b[regno] = blue;
	146	}
	147
	148	static void nouveau_fbcon_gamma_get(struct drm_crtc crtc, u16 red, u16 *green,
	149	u16 *blue, int regno)
	150	{
	151	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
	152
	153	*red = nv_crtc->lut.r[regno];
	154	*green = nv_crtc->lut.g[regno];
	155	*blue = nv_crtc->lut.b[regno];
	156	}
	157
	158	static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = {
	159	.gamma_set = nouveau_fbcon_gamma_set,
	160	.gamma_get = nouveau_fbcon_gamma_get
	161	};
	162
	163	#if defined(__i386__) \|\| defined(__x86_64__)
	164	static bool
	165	nouveau_fbcon_has_vesafb_or_efifb(struct drm_device *dev)
	166	{
	167	struct pci_dev *pdev = dev->pdev;
	168	int ramin;
	169
	170	if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB &&
	171	screen_info.orig_video_isVGA != VIDEO_TYPE_EFI)
	172	return false;
	173
	174	if (screen_info.lfb_base < pci_resource_start(pdev, 1))
	175	goto not_fb;
	176
	177	if (screen_info.lfb_base + screen_info.lfb_size >=
	178	pci_resource_start(pdev, 1) + pci_resource_len(pdev, 1))
	179	goto not_fb;
	180
	181	return true;
	182	not_fb:
	183	ramin = 2;
	184	if (pci_resource_len(pdev, ramin) == 0) {
	185	ramin = 3;
	186	if (pci_resource_len(pdev, ramin) == 0)
	187	return false;
	188	}
	189
	190	if (screen_info.lfb_base < pci_resource_start(pdev, ramin))
	191	return false;
	192
	193	if (screen_info.lfb_base + screen_info.lfb_size >=
	194	pci_resource_start(pdev, ramin) + pci_resource_len(pdev, ramin))
	195	return false;
	196
	197	return true;
	198	}
	199	#endif
	200
	201	void
202	nouveau_fbcon_zfill(struct drm_device *dev)
203	{
204	struct drm_nouveau_private *dev_priv = dev->dev_private;
205	struct fb_info *info = dev_priv->fbdev_info;
206	struct fb_fillrect rect;
207
208	/* Clear the entire fbcon. The drm will program every connector
209	* with it's preferred mode. If the sizes differ, one display will
210	* quite likely have garbage around the console.
211	*/
212	rect.dx = rect.dy = 0;
213	rect.width = info->var.xres_virtual;
214	rect.height = info->var.yres_virtual;
215	rect.color = 0;
216	rect.rop = ROP_COPY;
217	info->fbops->fb_fillrect(info, &rect);
218	}
219
220	static int
221	nouveau_fbcon_create(struct drm_device *dev, uint32_t fb_width,
222	uint32_t fb_height, uint32_t surface_width,
223	uint32_t surface_height, uint32_t surface_depth,
224	uint32_t surface_bpp, struct drm_framebuffer **pfb)
225	{
226	struct drm_nouveau_private *dev_priv = dev->dev_private;
227	struct fb_info *info;
228	struct nouveau_fbcon_par *par;
229	struct drm_framebuffer *fb;
230	struct nouveau_framebuffer *nouveau_fb;
231	struct nouveau_bo *nvbo;
232	struct drm_mode_fb_cmd mode_cmd;
233	struct device *device = &dev->pdev->dev;
234	int size, ret;
235
236	mode_cmd.width = surface_width;
237	mode_cmd.height = surface_height;
238
239	mode_cmd.bpp = surface_bpp;
240	mode_cmd.pitch = mode_cmd.width * (mode_cmd.bpp >> 3);
1c7059e4	241	mode_cmd.pitch = roundup(mode_cmd.pitch, 256);
6ee73861 BS	242	mode_cmd.depth = surface_depth;
	243
	244	size = mode_cmd.pitch * mode_cmd.height;
1c7059e4	245	size = roundup(size, PAGE_SIZE);
6ee73861 BS	246
	247	ret = nouveau_gem_new(dev, dev_priv->channel, size, 0, TTM_PL_FLAG_VRAM,
	248	0, 0x0000, false, true, &nvbo);
	249	if (ret) {
	250	NV_ERROR(dev, "failed to allocate framebuffer\n");
	251	goto out;
	252	}
	253
	254	ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM);
	255	if (ret) {
	256	NV_ERROR(dev, "failed to pin fb: %d\n", ret);
	257	nouveau_bo_ref(NULL, &nvbo);
	258	goto out;
	259	}
	260
	261	ret = nouveau_bo_map(nvbo);
	262	if (ret) {
	263	NV_ERROR(dev, "failed to map fb: %d\n", ret);
	264	nouveau_bo_unpin(nvbo);
	265	nouveau_bo_ref(NULL, &nvbo);
	266	goto out;
	267	}
	268
	269	mutex_lock(&dev->struct_mutex);
	270
	271	fb = nouveau_framebuffer_create(dev, nvbo, &mode_cmd);
	272	if (!fb) {
	273	ret = -ENOMEM;
	274	NV_ERROR(dev, "failed to allocate fb.\n");
	275	goto out_unref;
	276	}
	277
	278	list_add(&fb->filp_head, &dev->mode_config.fb_kernel_list);
	279
	280	nouveau_fb = nouveau_framebuffer(fb);
	281	*pfb = fb;
	282
	283	info = framebuffer_alloc(sizeof(struct nouveau_fbcon_par), device);
	284	if (!info) {
	285	ret = -ENOMEM;
	286	goto out_unref;
	287	}
	288
	289	par = info->par;
	290	par->helper.funcs = &nouveau_fbcon_helper_funcs;
	291	par->helper.dev = dev;
	292	ret = drm_fb_helper_init_crtc_count(&par->helper, 2, 4);
	293	if (ret)
	294	goto out_unref;
	295	dev_priv->fbdev_info = info;
	296
	297	strcpy(info->fix.id, "nouveaufb");
a32ed69d MK	298	if (nouveau_nofbaccel)
	299	info->flags = FBINFO_DEFAULT \| FBINFO_HWACCEL_DISABLED;
	300	else
	301	info->flags = FBINFO_DEFAULT \| FBINFO_HWACCEL_COPYAREA \|
	302	FBINFO_HWACCEL_FILLRECT \|
	303	FBINFO_HWACCEL_IMAGEBLIT;
6ee73861 BS	304	info->fbops = &nouveau_fbcon_ops;
	305	info->fix.smem_start = dev->mode_config.fb_base + nvbo->bo.offset -
	306	dev_priv->vm_vram_base;
	307	info->fix.smem_len = size;
	308
	309	info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo);
	310	info->screen_size = size;
	311
	312	drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
	313	drm_fb_helper_fill_var(info, fb, fb_width, fb_height);
	314
	315	/* FIXME: we really shouldn't expose mmio space at all */
	316	info->fix.mmio_start = pci_resource_start(dev->pdev, 1);
	317	info->fix.mmio_len = pci_resource_len(dev->pdev, 1);
	318
	319	/* Set aperture base/size for vesafb takeover */
	320	#if defined(__i386__) \|\| defined(__x86_64__)
	321	if (nouveau_fbcon_has_vesafb_or_efifb(dev)) {
	322	/* Some NVIDIA VBIOS' are stupid and decide to put the
	323	* framebuffer in the middle of the PRAMIN BAR for
	324	* whatever reason. We need to know the exact lfb_base
	325	* to get vesafb kicked off, and the only reliable way
	326	* we have left is to find out lfb_base the same way
	327	* vesafb did.
	328	*/
	329	info->aperture_base = screen_info.lfb_base;
	330	info->aperture_size = screen_info.lfb_size;
	331	if (screen_info.orig_video_isVGA == VIDEO_TYPE_VLFB)
	332	info->aperture_size *= 65536;
	333	} else
	334	#endif
	335	{
	336	info->aperture_base = info->fix.mmio_start;
	337	info->aperture_size = info->fix.mmio_len;
	338	}
	339
	340	info->pixmap.size = 64*1024;
	341	info->pixmap.buf_align = 8;
	342	info->pixmap.access_align = 32;
	343	info->pixmap.flags = FB_PIXMAP_SYSTEM;
	344	info->pixmap.scan_align = 1;
	345
	346	fb->fbdev = info;
	347
	348	par->nouveau_fb = nouveau_fb;
	349	par->dev = dev;
	350
a32ed69d	351	if (dev_priv->channel && !nouveau_nofbaccel) {
0735f62e BS	352	switch (dev_priv->card_type) {
	353	case NV_50:
	354	nv50_fbcon_accel_init(info);
126b5440	355	info->fbops = &nv50_fbcon_ops;
0735f62e BS	356	break;
	357	default:
	358	nv04_fbcon_accel_init(info);
126b5440	359	info->fbops = &nv04_fbcon_ops;
0735f62e BS	360	break;
	361	};
	362	}
6ee73861 BS	363
	364	nouveau_fbcon_zfill(dev);
	365
	366	/* To allow resizeing without swapping buffers */
	367	NV_INFO(dev, "allocated %dx%d fb: 0x%lx, bo %p\n",
	368	nouveau_fb->base.width,
	369	nouveau_fb->base.height,
	370	nvbo->bo.offset, nvbo);
	371
	372	mutex_unlock(&dev->struct_mutex);
6a9ee8af	373	vga_switcheroo_client_fb_set(dev->pdev, info);
6ee73861 BS	374	return 0;
	375
	376	out_unref:
	377	mutex_unlock(&dev->struct_mutex);
	378	out:
	379	return ret;
	380	}
	381
	382	int
	383	nouveau_fbcon_probe(struct drm_device *dev)
	384	{
ef2bb506	385	NV_DEBUG_KMS(dev, "\n");
6ee73861 BS	386
	387	return drm_fb_helper_single_fb_probe(dev, 32, nouveau_fbcon_create);
	388	}
	389
	390	int
	391	nouveau_fbcon_remove(struct drm_device dev, struct drm_framebuffer fb)
	392	{
	393	struct nouveau_framebuffer *nouveau_fb = nouveau_framebuffer(fb);
	394	struct fb_info *info;
	395
	396	if (!fb)
	397	return -EINVAL;
	398
	399	info = fb->fbdev;
	400	if (info) {
	401	struct nouveau_fbcon_par *par = info->par;
	402
	403	unregister_framebuffer(info);
	404	nouveau_bo_unmap(nouveau_fb->nvbo);
bc9025bd	405	drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem);
6ee73861	406	nouveau_fb->nvbo = NULL;
6ee73861 BS	407	if (par)
	408	drm_fb_helper_free(&par->helper);
	409	framebuffer_release(info);
	410	}
	411
	412	return 0;
	413	}
846975a9 MS	414
	415	void nouveau_fbcon_gpu_lockup(struct fb_info *info)
	416	{
	417	struct nouveau_fbcon_par *par = info->par;
	418	struct drm_device *dev = par->dev;
	419
	420	NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
	421	info->flags \|= FBINFO_HWACCEL_DISABLED;
	422	}