*
* Cleanup framebuffer. This function is intended to be used from the drivers
* ->destroy callback. It can also be used to clean up driver private
- * framebuffers embedded into a larger structure.
+ * framebuffers embedded into a larger structure.
*
* Note that this function does not remove the fb from active usuage - if it is
* still used anywhere, hilarity can ensue since userspace could call getfb on
crtc->base.properties = &crtc->properties;
list_add_tail(&crtc->head, &config->crtc_list);
- config->num_crtc++;
+ crtc->index = config->num_crtc++;
crtc->primary = primary;
crtc->cursor = cursor;
{
struct drm_device *dev = crtc->dev;
+ /* Note that the crtc_list is considered to be static; should we
+ * remove the drm_crtc at runtime we would have to decrement all
+ * the indices on the drm_crtc after us in the crtc_list.
+ */
+
kfree(crtc->gamma_store);
crtc->gamma_store = NULL;
}
EXPORT_SYMBOL(drm_crtc_cleanup);
-/**
- * drm_crtc_index - find the index of a registered CRTC
- * @crtc: CRTC to find index for
- *
- * Given a registered CRTC, return the index of that CRTC within a DRM
- * device's list of CRTCs.
- */
-unsigned int drm_crtc_index(struct drm_crtc *crtc)
-{
- unsigned int index = 0;
- struct drm_crtc *tmp;
-
- drm_for_each_crtc(tmp, crtc->dev) {
- if (tmp == crtc)
- return index;
-
- index++;
- }
-
- BUG();
-}
-EXPORT_SYMBOL(drm_crtc_index);
-
/*
* drm_mode_remove - remove and free a mode
* @connector: connector list to modify
}
list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
- dev->mode_config.num_encoder++;
+ encoder->index = dev->mode_config.num_encoder++;
out_put:
if (ret)
}
EXPORT_SYMBOL(drm_encoder_init);
-/**
- * drm_encoder_index - find the index of a registered encoder
- * @encoder: encoder to find index for
- *
- * Given a registered encoder, return the index of that encoder within a DRM
- * device's list of encoders.
- */
-unsigned int drm_encoder_index(struct drm_encoder *encoder)
-{
- unsigned int index = 0;
- struct drm_encoder *tmp;
-
- drm_for_each_encoder(tmp, encoder->dev) {
- if (tmp == encoder)
- return index;
-
- index++;
- }
-
- BUG();
-}
-EXPORT_SYMBOL(drm_encoder_index);
-
/**
* drm_encoder_cleanup - cleans up an initialised encoder
* @encoder: encoder to cleanup
{
struct drm_device *dev = encoder->dev;
+ /* Note that the encoder_list is considered to be static; should we
+ * remove the drm_encoder at runtime we would have to decrement all
+ * the indices on the drm_encoder after us in the encoder_list.
+ */
+
drm_modeset_lock_all(dev);
drm_mode_object_unregister(dev, &encoder->base);
kfree(encoder->name);
plane->type = type;
list_add_tail(&plane->head, &config->plane_list);
- config->num_total_plane++;
+ plane->index = config->num_total_plane++;
if (plane->type == DRM_PLANE_TYPE_OVERLAY)
config->num_overlay_plane++;
BUG_ON(list_empty(&plane->head));
+ /* Note that the plane_list is considered to be static; should we
+ * remove the drm_plane at runtime we would have to decrement all
+ * the indices on the drm_plane after us in the plane_list.
+ */
+
list_del(&plane->head);
dev->mode_config.num_total_plane--;
if (plane->type == DRM_PLANE_TYPE_OVERLAY)
}
EXPORT_SYMBOL(drm_plane_cleanup);
-/**
- * drm_plane_index - find the index of a registered plane
- * @plane: plane to find index for
- *
- * Given a registered plane, return the index of that CRTC within a DRM
- * device's list of planes.
- */
-unsigned int drm_plane_index(struct drm_plane *plane)
-{
- unsigned int index = 0;
- struct drm_plane *tmp;
-
- drm_for_each_plane(tmp, plane->dev) {
- if (tmp == plane)
- return index;
-
- index++;
- }
-
- BUG();
-}
-EXPORT_SYMBOL(drm_plane_index);
-
/**
* drm_plane_from_index - find the registered plane at an index
* @dev: DRM device
drm_plane_from_index(struct drm_device *dev, int idx)
{
struct drm_plane *plane;
- unsigned int i = 0;
- drm_for_each_plane(plane, dev) {
- if (i == idx)
+ drm_for_each_plane(plane, dev)
+ if (idx == plane->index)
return plane;
- i++;
- }
+
return NULL;
}
EXPORT_SYMBOL(drm_plane_from_index);
DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n");
return PTR_ERR(fb);
}
+ fb->hot_x = req->hot_x;
+ fb->hot_y = req->hot_y;
} else {
fb = NULL;
}
int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
int gamma_size)
{
+ uint16_t *r_base, *g_base, *b_base;
+ int i;
+
crtc->gamma_size = gamma_size;
crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3,
return -ENOMEM;
}
+ r_base = crtc->gamma_store;
+ g_base = r_base + gamma_size;
+ b_base = g_base + gamma_size;
+ for (i = 0; i < gamma_size; i++) {
+ r_base[i] = i << 8;
+ g_base[i] = i << 8;
+ b_base[i] = i << 8;
+ }
+
+
return 0;
}
EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
goto out;
}
- crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
+ ret = crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size);
out:
drm_modeset_unlock_all(dev);
#include <drm/drm_crtc_helper.h>
#include <drm/drm_atomic_helper.h>
- #define XRES_MIN 320
- #define YRES_MIN 200
+ #define XRES_MIN 32
+ #define YRES_MIN 32
#define XRES_DEF 1024
#define YRES_DEF 768
#define XRES_MAX 8192
#define YRES_MAX 8192
- static void
- virtio_gpu_hide_cursor(struct virtio_gpu_device *vgdev,
- struct virtio_gpu_output *output)
- {
- output->cursor.hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_UPDATE_CURSOR);
- output->cursor.resource_id = 0;
- virtio_gpu_cursor_ping(vgdev, output);
- }
-
- static int virtio_gpu_crtc_cursor_set(struct drm_crtc *crtc,
- struct drm_file *file_priv,
- uint32_t handle,
- uint32_t width,
- uint32_t height,
- int32_t hot_x, int32_t hot_y)
- {
- struct virtio_gpu_device *vgdev = crtc->dev->dev_private;
- struct virtio_gpu_output *output =
- container_of(crtc, struct virtio_gpu_output, crtc);
- struct drm_gem_object *gobj = NULL;
- struct virtio_gpu_object *qobj = NULL;
- struct virtio_gpu_fence *fence = NULL;
- int ret = 0;
-
- if (handle == 0) {
- virtio_gpu_hide_cursor(vgdev, output);
- return 0;
- }
-
- /* lookup the cursor */
- gobj = drm_gem_object_lookup(file_priv, handle);
- if (gobj == NULL)
- return -ENOENT;
-
- qobj = gem_to_virtio_gpu_obj(gobj);
-
- if (!qobj->hw_res_handle) {
- ret = -EINVAL;
- goto out;
- }
-
- virtio_gpu_cmd_transfer_to_host_2d(vgdev, qobj->hw_res_handle, 0,
- cpu_to_le32(64),
- cpu_to_le32(64),
- 0, 0, &fence);
- ret = virtio_gpu_object_reserve(qobj, false);
- if (!ret) {
- reservation_object_add_excl_fence(qobj->tbo.resv,
- &fence->f);
- fence_put(&fence->f);
- virtio_gpu_object_unreserve(qobj);
- virtio_gpu_object_wait(qobj, false);
- }
-
- output->cursor.hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_UPDATE_CURSOR);
- output->cursor.resource_id = cpu_to_le32(qobj->hw_res_handle);
- output->cursor.hot_x = cpu_to_le32(hot_x);
- output->cursor.hot_y = cpu_to_le32(hot_y);
- virtio_gpu_cursor_ping(vgdev, output);
- ret = 0;
-
- out:
- drm_gem_object_unreference_unlocked(gobj);
- return ret;
- }
-
- static int virtio_gpu_crtc_cursor_move(struct drm_crtc *crtc,
- int x, int y)
- {
- struct virtio_gpu_device *vgdev = crtc->dev->dev_private;
- struct virtio_gpu_output *output =
- container_of(crtc, struct virtio_gpu_output, crtc);
-
- output->cursor.hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_MOVE_CURSOR);
- output->cursor.pos.x = cpu_to_le32(x);
- output->cursor.pos.y = cpu_to_le32(y);
- virtio_gpu_cursor_ping(vgdev, output);
- return 0;
- }
-
static int virtio_gpu_page_flip(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
struct drm_pending_vblank_event *event,
if (event) {
spin_lock_irqsave(&crtc->dev->event_lock, irqflags);
- drm_send_vblank_event(crtc->dev, -1, event);
+ drm_crtc_send_vblank_event(crtc, event);
spin_unlock_irqrestore(&crtc->dev->event_lock, irqflags);
}
}
static const struct drm_crtc_funcs virtio_gpu_crtc_funcs = {
- .cursor_set2 = virtio_gpu_crtc_cursor_set,
- .cursor_move = virtio_gpu_crtc_cursor_move,
.set_config = drm_atomic_helper_set_config,
.destroy = drm_crtc_cleanup,
struct drm_connector *connector = &output->conn;
struct drm_encoder *encoder = &output->enc;
struct drm_crtc *crtc = &output->crtc;
- struct drm_plane *plane;
+ struct drm_plane *primary, *cursor;
output->index = index;
if (index == 0) {
output->info.r.height = cpu_to_le32(YRES_DEF);
}
- plane = virtio_gpu_plane_init(vgdev, index);
- if (IS_ERR(plane))
- return PTR_ERR(plane);
- drm_crtc_init_with_planes(dev, crtc, plane, NULL,
+ primary = virtio_gpu_plane_init(vgdev, DRM_PLANE_TYPE_PRIMARY, index);
+ if (IS_ERR(primary))
+ return PTR_ERR(primary);
+ cursor = virtio_gpu_plane_init(vgdev, DRM_PLANE_TYPE_CURSOR, index);
+ if (IS_ERR(cursor))
+ return PTR_ERR(cursor);
+ drm_crtc_init_with_planes(dev, crtc, primary, cursor,
&virtio_gpu_crtc_funcs, NULL);
drm_crtc_helper_add(crtc, &virtio_gpu_crtc_helper_funcs);
- plane->crtc = crtc;
+ primary->crtc = crtc;
+ cursor->crtc = crtc;
drm_connector_init(dev, connector, &virtio_gpu_connector_funcs,
DRM_MODE_CONNECTOR_VIRTUAL);
return &virtio_gpu_fb->base;
}
+ static int vgdev_atomic_commit(struct drm_device *dev,
+ struct drm_atomic_state *state,
+ bool nonblock)
+ {
+ if (nonblock)
+ return -EBUSY;
+
+ drm_atomic_helper_swap_state(dev, state);
+ drm_atomic_helper_wait_for_fences(dev, state);
+
+ drm_atomic_helper_commit_modeset_disables(dev, state);
+ drm_atomic_helper_commit_modeset_enables(dev, state);
+ drm_atomic_helper_commit_planes(dev, state, true);
+
+ drm_atomic_helper_wait_for_vblanks(dev, state);
+ drm_atomic_helper_cleanup_planes(dev, state);
+ drm_atomic_state_free(state);
+ return 0;
+ }
+
static const struct drm_mode_config_funcs virtio_gpu_mode_funcs = {
.fb_create = virtio_gpu_user_framebuffer_create,
.atomic_check = drm_atomic_helper_check,
- .atomic_commit = drm_atomic_helper_commit,
+ .atomic_commit = vgdev_atomic_commit,
};
int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev)
int bits_per_pixel;
int flags;
uint32_t pixel_format; /* fourcc format */
+ int hot_x;
+ int hot_y;
struct list_head filp_head;
};
* update to ensure framebuffer cleanup isn't done too early
* @adjusted_mode: for use by helpers and drivers to compute adjusted mode timings
* @mode: current mode timings
+ * @mode_blob: &drm_property_blob for @mode
* @degamma_lut: Lookup table for converting framebuffer pixel data
* before apply the conversion matrix
* @ctm: Transformation matrix
* going on, which should eventually be unified to just one set of
* hooks.
*/
- void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
- uint32_t start, uint32_t size);
+ int (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
+ uint32_t size);
/**
* @destroy:
* @dev: parent DRM device
* @port: OF node used by drm_of_find_possible_crtcs()
* @head: list management
+ * @name: human readable name, can be overwritten by the driver
* @mutex: per-CRTC locking
* @base: base KMS object for ID tracking etc.
* @primary: primary plane for this CRTC
char *name;
- /*
- * crtc mutex
+ /**
+ * @mutex:
*
* This provides a read lock for the overall crtc state (mode, dpms
* state, ...) and a write lock for everything which can be update
- * without a full modeset (fb, cursor data, ...)
+ * without a full modeset (fb, cursor data, crtc properties ...). Full
+ * modeset also need to grab dev->mode_config.connection_mutex.
*/
struct drm_modeset_lock mutex;
struct drm_plane *primary;
struct drm_plane *cursor;
+ /* position inside the mode_config.list, can be used as a [] idx */
+ unsigned index;
+
/* position of cursor plane on crtc */
int cursor_x;
int cursor_y;
* @dev: parent DRM device
* @head: list management
* @base: base KMS object
- * @name: encoder name
+ * @name: human readable name, can be overwritten by the driver
* @encoder_type: one of the %DRM_MODE_ENCODER_<foo> types in drm_mode.h
* @possible_crtcs: bitmask of potential CRTC bindings
* @possible_clones: bitmask of potential sibling encoders for cloning
struct drm_mode_object base;
char *name;
int encoder_type;
+
+ /* position inside the mode_config.list, can be used as a [] idx */
+ unsigned index;
+
uint32_t possible_crtcs;
uint32_t possible_clones;
* @attr: sysfs attributes
* @head: list management
* @base: base KMS object
- * @name: connector name
+ * @name: human readable name, can be overwritten by the driver
+ * @connector_id: compacted connector id useful indexing arrays
* @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
* @connector_type_id: index into connector type enum
* @interlace_allowed: can this connector handle interlaced modes?
* @funcs: connector control functions
* @edid_blob_ptr: DRM property containing EDID if present
* @properties: property tracking for this connector
- * @path_blob_ptr: DRM blob property data for the DP MST path property
* @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling
* @dpms: current dpms state
* @helper_private: mid-layer private data
struct drm_property_blob *edid_blob_ptr;
struct drm_object_properties properties;
+ /**
+ * @path_blob_ptr:
+ *
+ * DRM blob property data for the DP MST path property.
+ */
struct drm_property_blob *path_blob_ptr;
+ /**
+ * @tile_blob_ptr:
+ *
+ * DRM blob property data for the tile property (used mostly by DP MST).
+ * This is meant for screens which are driven through separate display
+ * pipelines represented by &drm_crtc, which might not be running with
+ * genlocked clocks. For tiled panels which are genlocked, like
+ * dual-link LVDS or dual-link DSI, the driver should try to not expose
+ * the tiling and virtualize both &drm_crtc and &drm_plane if needed.
+ */
struct drm_property_blob *tile_blob_ptr;
uint8_t polled; /* DRM_CONNECTOR_POLL_* */
* plane (in 16.16)
* @src_w: width of visible portion of plane (in 16.16)
* @src_h: height of visible portion of plane (in 16.16)
+ * @rotation: rotation of the plane
* @state: backpointer to global drm_atomic_state
*/
struct drm_plane_state {
* struct drm_plane - central DRM plane control structure
* @dev: DRM device this plane belongs to
* @head: for list management
+ * @name: human readable name, can be overwritten by the driver
* @base: base mode object
* @possible_crtcs: pipes this plane can be bound to
* @format_types: array of formats supported by this plane
* @properties: property tracking for this plane
* @type: type of plane (overlay, primary, cursor)
* @state: current atomic state for this plane
+ * @helper_private: mid-layer private data
*/
struct drm_plane {
struct drm_device *dev;
char *name;
+ /**
+ * @mutex:
+ *
+ * Protects modeset plane state, together with the mutex of &drm_crtc
+ * this plane is linked to (when active, getting actived or getting
+ * disabled).
+ */
struct drm_modeset_lock mutex;
struct drm_mode_object base;
enum drm_plane_type type;
+ /* position inside the mode_config.list, can be used as a [] idx */
+ unsigned index;
+
const struct drm_plane_helper_funcs *helper_private;
struct drm_plane_state *state;
void *driver_private;
};
+struct __drm_planes_state {
+ struct drm_plane *ptr;
+ struct drm_plane_state *state;
+};
+
+struct __drm_crtcs_state {
+ struct drm_crtc *ptr;
+ struct drm_crtc_state *state;
+};
+
+struct __drm_connnectors_state {
+ struct drm_connector *ptr;
+ struct drm_connector_state *state;
+};
+
/**
* struct drm_atomic_state - the global state object for atomic updates
* @dev: parent DRM device
* @allow_modeset: allow full modeset
* @legacy_cursor_update: hint to enforce legacy cursor IOCTL semantics
* @legacy_set_config: Disable conflicting encoders instead of failing with -EINVAL.
- * @planes: pointer to array of plane pointers
- * @plane_states: pointer to array of plane states pointers
+ * @planes: pointer to array of structures with per-plane data
* @crtcs: pointer to array of CRTC pointers
- * @crtc_states: pointer to array of CRTC states pointers
* @num_connector: size of the @connectors and @connector_states arrays
- * @connectors: pointer to array of connector pointers
- * @connector_states: pointer to array of connector states pointers
+ * @connectors: pointer to array of structures with per-connector data
* @acquire_ctx: acquire context for this atomic modeset state update
*/
struct drm_atomic_state {
bool allow_modeset : 1;
bool legacy_cursor_update : 1;
bool legacy_set_config : 1;
- struct drm_plane **planes;
- struct drm_plane_state **plane_states;
- struct drm_crtc **crtcs;
- struct drm_crtc_state **crtc_states;
+ struct __drm_planes_state *planes;
+ struct __drm_crtcs_state *crtcs;
int num_connector;
- struct drm_connector **connectors;
- struct drm_connector_state **connector_states;
+ struct __drm_connnectors_state *connectors;
struct drm_modeset_acquire_ctx *acquire_ctx;
};
* @connection_mutex: ww mutex protecting connector state and routing
* @acquire_ctx: global implicit acquire context used by atomic drivers for
* legacy IOCTLs
- * @idr_mutex: mutex for KMS ID allocation and management
- * @crtc_idr: main KMS ID tracking object
* @fb_lock: mutex to protect fb state and lists
* @num_fb: number of fbs available
* @fb_list: list of framebuffers available
* @fb_base: base address of the framebuffer
* @poll_enabled: track polling support for this device
* @poll_running: track polling status for this device
+ * @delayed_event: track delayed poll uevent deliver for this device
* @output_poll_work: delayed work for polling in process context
* @property_blob_list: list of all the blob property objects
* @blob_lock: mutex for blob property allocation and management
struct mutex mutex; /* protects configuration (mode lists etc.) */
struct drm_modeset_lock connection_mutex; /* protects connector->encoder and encoder->crtc links */
struct drm_modeset_acquire_ctx *acquire_ctx; /* for legacy _lock_all() / _unlock_all() */
- struct mutex idr_mutex; /* for IDR management */
- struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
- struct idr tile_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
- /* this is limited to one for now */
+
+ /**
+ * @idr_mutex:
+ *
+ * Mutex for KMS ID allocation and management. Protects both @crtc_idr
+ * and @tile_idr.
+ */
+ struct mutex idr_mutex;
+
+ /**
+ * @crtc_idr:
+ *
+ * Main KMS ID tracking object. Use this idr for all IDs, fb, crtc,
+ * connector, modes - just makes life easier to have only one.
+ */
+ struct idr crtc_idr;
+
+ /**
+ * @tile_idr:
+ *
+ * Use this idr for allocating new IDs for tiled sinks like use in some
+ * high-res DP MST screens.
+ */
+ struct idr tile_idr;
struct mutex fb_lock; /* proctects global and per-file fb lists */
int num_fb;
/* whether async page flip is supported or not */
bool async_page_flip;
- /* whether the driver supports fb modifiers */
+ /**
+ * @allow_fb_modifiers:
+ *
+ * Whether the driver supports fb modifiers in the ADDFB2.1 ioctl call.
+ */
bool allow_fb_modifiers;
/* cursor size */
const struct drm_crtc_funcs *funcs,
const char *name, ...);
extern void drm_crtc_cleanup(struct drm_crtc *crtc);
-extern unsigned int drm_crtc_index(struct drm_crtc *crtc);
+
+/**
+ * drm_crtc_index - find the index of a registered CRTC
+ * @crtc: CRTC to find index for
+ *
+ * Given a registered CRTC, return the index of that CRTC within a DRM
+ * device's list of CRTCs.
+ */
+static inline unsigned int drm_crtc_index(struct drm_crtc *crtc)
+{
+ return crtc->index;
+}
/**
* drm_crtc_mask - find the mask of a registered CRTC
struct drm_encoder *encoder,
const struct drm_encoder_funcs *funcs,
int encoder_type, const char *name, ...);
-extern unsigned int drm_encoder_index(struct drm_encoder *encoder);
+
+/**
+ * drm_encoder_index - find the index of a registered encoder
+ * @encoder: encoder to find index for
+ *
+ * Given a registered encoder, return the index of that encoder within a DRM
+ * device's list of encoders.
+ */
+static inline unsigned int drm_encoder_index(struct drm_encoder *encoder)
+{
+ return encoder->index;
+}
/**
* drm_encoder_crtc_ok - can a given crtc drive a given encoder?
const uint32_t *formats, unsigned int format_count,
bool is_primary);
extern void drm_plane_cleanup(struct drm_plane *plane);
-extern unsigned int drm_plane_index(struct drm_plane *plane);
+
+/**
+ * drm_plane_index - find the index of a registered plane
+ * @plane: plane to find index for
+ *
+ * Given a registered plane, return the index of that plane within a DRM
+ * device's list of planes.
+ */
+static inline unsigned int drm_plane_index(struct drm_plane *plane)
+{
+ return plane->index;
+}
extern struct drm_plane * drm_plane_from_index(struct drm_device *dev, int idx);
extern void drm_plane_force_disable(struct drm_plane *plane);
extern int drm_plane_check_pixel_format(const struct drm_plane *plane,
projects / mirror_ubuntu-jammy-kernel.git / commitdiff