linux/drivers/gpu/drm/drm_plane.c

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/*
* Copyright (c) 2016 Intel Corporation
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include <drm/drmP.h>
#include <drm/drm_plane.h>
#include "drm_crtc_internal.h"
/**
* DOC: overview
*
* A plane represents an image source that can be blended with or overlayed on
* top of a CRTC during the scanout process. Planes take their input data from a
* &drm_framebuffer object. The plane itself specifies the cropping and scaling
* of that image, and where it is placed on the visible are of a display
* pipeline, represented by &drm_crtc. A plane can also have additional
* properties that specify how the pixels are positioned and blended, like
* rotation or Z-position. All these properties are stored in &drm_plane_state.
*
* To create a plane, a KMS drivers allocates and zeroes an instances of
* &struct drm_plane (possibly as part of a larger structure) and registers it
* with a call to drm_universal_plane_init().
*
* Cursor and overlay planes are optional. All drivers should provide one
* primary plane per CRTC to avoid surprising userspace too much. See enum
* drm_plane_type for a more in-depth discussion of these special uapi-relevant
* plane types. Special planes are associated with their CRTC by calling
* drm_crtc_init_with_planes().
*
* The type of a plane is exposed in the immutable "type" enumeration property,
* which has one of the following values: "Overlay", "Primary", "Cursor".
*/
static unsigned int drm_num_planes(struct drm_device *dev)
{
unsigned int num = 0;
struct drm_plane *tmp;
drm_for_each_plane(tmp, dev) {
num++;
}
return num;
}
/**
* drm_universal_plane_init - Initialize a new universal plane object
* @dev: DRM device
* @plane: plane object to init
* @possible_crtcs: bitmask of possible CRTCs
* @funcs: callbacks for the new plane
* @formats: array of supported formats (DRM_FORMAT\_\*)
* @format_count: number of elements in @formats
* @type: type of plane (overlay, primary, cursor)
* @name: printf style format string for the plane name, or NULL for default name
*
* Initializes a plane object of type @type.
*
* Returns:
* Zero on success, error code on failure.
*/
int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane,
uint32_t possible_crtcs,
const struct drm_plane_funcs *funcs,
const uint32_t *formats, unsigned int format_count,
enum drm_plane_type type,
const char *name, ...)
{
struct drm_mode_config *config = &dev->mode_config;
int ret;
ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
if (ret)
return ret;
drm_modeset_lock_init(&plane->mutex);
plane->base.properties = &plane->properties;
plane->dev = dev;
plane->funcs = funcs;
plane->format_types = kmalloc_array(format_count, sizeof(uint32_t),
GFP_KERNEL);
if (!plane->format_types) {
DRM_DEBUG_KMS("out of memory when allocating plane\n");
drm_mode_object_unregister(dev, &plane->base);
return -ENOMEM;
}
if (name) {
va_list ap;
va_start(ap, name);
plane->name = kvasprintf(GFP_KERNEL, name, ap);
va_end(ap);
} else {
plane->name = kasprintf(GFP_KERNEL, "plane-%d",
drm_num_planes(dev));
}
if (!plane->name) {
kfree(plane->format_types);
drm_mode_object_unregister(dev, &plane->base);
return -ENOMEM;
}
memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
plane->format_count = format_count;
plane->possible_crtcs = possible_crtcs;
plane->type = type;
list_add_tail(&plane->head, &config->plane_list);
plane->index = config->num_total_plane++;
if (plane->type == DRM_PLANE_TYPE_OVERLAY)
config->num_overlay_plane++;
drm_object_attach_property(&plane->base,
config->plane_type_property,
plane->type);
if (drm_core_check_feature(dev, DRIVER_ATOMIC)) {
drm_object_attach_property(&plane->base, config->prop_fb_id, 0);
drm/fence: add in-fences support There is now a new property called IN_FENCE_FD attached to every plane state that receives sync_file fds from userspace via the atomic commit IOCTL. The fd is then translated to a fence (that may be a fence_array subclass or just a normal fence) and then used by DRM to fence_wait() for all fences in the sync_file to signal. So it only commits when all framebuffers are ready to scanout. v2: Comments by Daniel Vetter: - remove set state->fence = NULL in destroy phase - accept fence -1 as valid and just return 0 - do not call fence_get() - sync_file_fences_get() already calls it - fence_put() if state->fence is already set, in case userspace set the property more than once. v3: WARN_ON if fence is set but state has no FB v4: Comment from Maarten Lankhorst - allow set fence with no related fb v5: rename FENCE_FD to IN_FENCE_FD v6: Comments by Daniel Vetter: - rename plane_state->in_fence back to "fence" - re-introduce WARN_ON if fence set but no fb - rebase after fence -> dma_fence rename v7: Comments by Brian Starkey - set state->fence to NULL when duplicating the state - fail if IN_FENCE_FD was already set v8: rebase against latest drm-misc Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Reviewed-by: Brian Starkey <brian.starkey@arm.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Tested-by: Robert Foss <robert.foss@collabora.com> [danvet: Rebase onto extracted drm_mode_config.[hc].] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-11-15 13:06:39 +00:00
drm_object_attach_property(&plane->base, config->prop_in_fence_fd, -1);
drm_object_attach_property(&plane->base, config->prop_crtc_id, 0);
drm_object_attach_property(&plane->base, config->prop_crtc_x, 0);
drm_object_attach_property(&plane->base, config->prop_crtc_y, 0);
drm_object_attach_property(&plane->base, config->prop_crtc_w, 0);
drm_object_attach_property(&plane->base, config->prop_crtc_h, 0);
drm_object_attach_property(&plane->base, config->prop_src_x, 0);
drm_object_attach_property(&plane->base, config->prop_src_y, 0);
drm_object_attach_property(&plane->base, config->prop_src_w, 0);
drm_object_attach_property(&plane->base, config->prop_src_h, 0);
}
return 0;
}
EXPORT_SYMBOL(drm_universal_plane_init);
int drm_plane_register_all(struct drm_device *dev)
{
struct drm_plane *plane;
int ret = 0;
drm_for_each_plane(plane, dev) {
if (plane->funcs->late_register)
ret = plane->funcs->late_register(plane);
if (ret)
return ret;
}
return 0;
}
void drm_plane_unregister_all(struct drm_device *dev)
{
struct drm_plane *plane;
drm_for_each_plane(plane, dev) {
if (plane->funcs->early_unregister)
plane->funcs->early_unregister(plane);
}
}
/**
* drm_plane_init - Initialize a legacy plane
* @dev: DRM device
* @plane: plane object to init
* @possible_crtcs: bitmask of possible CRTCs
* @funcs: callbacks for the new plane
* @formats: array of supported formats (DRM_FORMAT\_\*)
* @format_count: number of elements in @formats
* @is_primary: plane type (primary vs overlay)
*
* Legacy API to initialize a DRM plane.
*
* New drivers should call drm_universal_plane_init() instead.
*
* Returns:
* Zero on success, error code on failure.
*/
int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
uint32_t possible_crtcs,
const struct drm_plane_funcs *funcs,
const uint32_t *formats, unsigned int format_count,
bool is_primary)
{
enum drm_plane_type type;
type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY;
return drm_universal_plane_init(dev, plane, possible_crtcs, funcs,
formats, format_count, type, NULL);
}
EXPORT_SYMBOL(drm_plane_init);
/**
* drm_plane_cleanup - Clean up the core plane usage
* @plane: plane to cleanup
*
* This function cleans up @plane and removes it from the DRM mode setting
* core. Note that the function does *not* free the plane structure itself,
* this is the responsibility of the caller.
*/
void drm_plane_cleanup(struct drm_plane *plane)
{
struct drm_device *dev = plane->dev;
drm_modeset_lock_fini(&plane->mutex);
kfree(plane->format_types);
drm_mode_object_unregister(dev, &plane->base);
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)
dev->mode_config.num_overlay_plane--;
WARN_ON(plane->state && !plane->funcs->atomic_destroy_state);
if (plane->state && plane->funcs->atomic_destroy_state)
plane->funcs->atomic_destroy_state(plane, plane->state);
kfree(plane->name);
memset(plane, 0, sizeof(*plane));
}
EXPORT_SYMBOL(drm_plane_cleanup);
/**
* drm_plane_from_index - find the registered plane at an index
* @dev: DRM device
* @idx: index of registered plane to find for
*
* Given a plane index, return the registered plane from DRM device's
* list of planes with matching index. This is the inverse of drm_plane_index().
*/
struct drm_plane *
drm_plane_from_index(struct drm_device *dev, int idx)
{
struct drm_plane *plane;
drm_for_each_plane(plane, dev)
if (idx == plane->index)
return plane;
return NULL;
}
EXPORT_SYMBOL(drm_plane_from_index);
/**
* drm_plane_force_disable - Forcibly disable a plane
* @plane: plane to disable
*
* Forces the plane to be disabled.
*
* Used when the plane's current framebuffer is destroyed,
* and when restoring fbdev mode.
*/
void drm_plane_force_disable(struct drm_plane *plane)
{
int ret;
if (!plane->fb)
return;
plane->old_fb = plane->fb;
ret = plane->funcs->disable_plane(plane);
if (ret) {
DRM_ERROR("failed to disable plane with busy fb\n");
plane->old_fb = NULL;
return;
}
/* disconnect the plane from the fb and crtc: */
drm_framebuffer_unreference(plane->old_fb);
plane->old_fb = NULL;
plane->fb = NULL;
plane->crtc = NULL;
}
EXPORT_SYMBOL(drm_plane_force_disable);
/**
* drm_mode_plane_set_obj_prop - set the value of a property
* @plane: drm plane object to set property value for
* @property: property to set
* @value: value the property should be set to
*
* This functions sets a given property on a given plane object. This function
* calls the driver's ->set_property callback and changes the software state of
* the property if the callback succeeds.
*
* Returns:
* Zero on success, error code on failure.
*/
int drm_mode_plane_set_obj_prop(struct drm_plane *plane,
struct drm_property *property,
uint64_t value)
{
int ret = -EINVAL;
struct drm_mode_object *obj = &plane->base;
if (plane->funcs->set_property)
ret = plane->funcs->set_property(plane, property, value);
if (!ret)
drm_object_property_set_value(obj, property, value);
return ret;
}
EXPORT_SYMBOL(drm_mode_plane_set_obj_prop);
int drm_mode_getplane_res(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_mode_get_plane_res *plane_resp = data;
struct drm_mode_config *config;
struct drm_plane *plane;
uint32_t __user *plane_ptr;
int copied = 0;
unsigned num_planes;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
config = &dev->mode_config;
if (file_priv->universal_planes)
num_planes = config->num_total_plane;
else
num_planes = config->num_overlay_plane;
/*
* This ioctl is called twice, once to determine how much space is
* needed, and the 2nd time to fill it.
*/
if (num_planes &&
(plane_resp->count_planes >= num_planes)) {
plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
/* Plane lists are invariant, no locking needed. */
drm_for_each_plane(plane, dev) {
/*
* Unless userspace set the 'universal planes'
* capability bit, only advertise overlays.
*/
if (plane->type != DRM_PLANE_TYPE_OVERLAY &&
!file_priv->universal_planes)
continue;
if (put_user(plane->base.id, plane_ptr + copied))
return -EFAULT;
copied++;
}
}
plane_resp->count_planes = num_planes;
return 0;
}
int drm_mode_getplane(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_mode_get_plane *plane_resp = data;
struct drm_plane *plane;
uint32_t __user *format_ptr;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
plane = drm_plane_find(dev, plane_resp->plane_id);
if (!plane)
return -ENOENT;
drm_modeset_lock(&plane->mutex, NULL);
if (plane->state && plane->state->crtc)
plane_resp->crtc_id = plane->state->crtc->base.id;
else if (!plane->state && plane->crtc)
plane_resp->crtc_id = plane->crtc->base.id;
else
plane_resp->crtc_id = 0;
if (plane->state && plane->state->fb)
plane_resp->fb_id = plane->state->fb->base.id;
else if (!plane->state && plane->fb)
plane_resp->fb_id = plane->fb->base.id;
else
plane_resp->fb_id = 0;
drm_modeset_unlock(&plane->mutex);
plane_resp->plane_id = plane->base.id;
plane_resp->possible_crtcs = plane->possible_crtcs;
plane_resp->gamma_size = 0;
/*
* This ioctl is called twice, once to determine how much space is
* needed, and the 2nd time to fill it.
*/
if (plane->format_count &&
(plane_resp->count_format_types >= plane->format_count)) {
format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
if (copy_to_user(format_ptr,
plane->format_types,
sizeof(uint32_t) * plane->format_count)) {
return -EFAULT;
}
}
plane_resp->count_format_types = plane->format_count;
return 0;
}
int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format)
{
unsigned int i;
for (i = 0; i < plane->format_count; i++) {
if (format == plane->format_types[i])
return 0;
}
return -EINVAL;
}
/*
* setplane_internal - setplane handler for internal callers
*
* Note that we assume an extra reference has already been taken on fb. If the
* update fails, this reference will be dropped before return; if it succeeds,
* the previous framebuffer (if any) will be unreferenced instead.
*
* src_{x,y,w,h} are provided in 16.16 fixed point format
*/
static int __setplane_internal(struct drm_plane *plane,
struct drm_crtc *crtc,
struct drm_framebuffer *fb,
int32_t crtc_x, int32_t crtc_y,
uint32_t crtc_w, uint32_t crtc_h,
/* src_{x,y,w,h} values are 16.16 fixed point */
uint32_t src_x, uint32_t src_y,
uint32_t src_w, uint32_t src_h)
{
int ret = 0;
/* No fb means shut it down */
if (!fb) {
plane->old_fb = plane->fb;
ret = plane->funcs->disable_plane(plane);
if (!ret) {
plane->crtc = NULL;
plane->fb = NULL;
} else {
plane->old_fb = NULL;
}
goto out;
}
/* Check whether this plane is usable on this CRTC */
if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) {
DRM_DEBUG_KMS("Invalid crtc for plane\n");
ret = -EINVAL;
goto out;
}
/* Check whether this plane supports the fb pixel format. */
drm: Nuke fb->pixel_format Replace uses of fb->pixel_format with fb->format->format. Less duplicated information is a good thing. Note that coccinelle failed to eliminate the "/* fourcc format */" comment from drm_framebuffer.h, so I had to do that part manually. @@ struct drm_framebuffer *FB; expression E; @@ drm_helper_mode_fill_fb_struct(...) { ... - FB->pixel_format = E; ... } @@ struct drm_framebuffer *FB; expression E; @@ i9xx_get_initial_plane_config(...) { ... - FB->pixel_format = E; ... } @@ struct drm_framebuffer *FB; expression E; @@ ironlake_get_initial_plane_config(...) { ... - FB->pixel_format = E; ... } @@ struct drm_framebuffer *FB; expression E; @@ skylake_get_initial_plane_config(...) { ... - FB->pixel_format = E; ... } @@ struct drm_framebuffer *a; struct drm_framebuffer b; @@ ( - a->pixel_format + a->format->format | - b.pixel_format + b.format->format ) @@ struct drm_plane_state *a; struct drm_plane_state b; @@ ( - a->fb->pixel_format + a->fb->format->format | - b.fb->pixel_format + b.fb->format->format ) @@ struct drm_crtc *CRTC; @@ ( - CRTC->primary->fb->pixel_format + CRTC->primary->fb->format->format | - CRTC->primary->state->fb->pixel_format + CRTC->primary->state->fb->format->format ) @@ struct drm_mode_set *set; @@ ( - set->fb->pixel_format + set->fb->format->format | - set->crtc->primary->fb->pixel_format + set->crtc->primary->fb->format->format ) @@ @@ struct drm_framebuffer { ... - uint32_t pixel_format; ... }; v2: Fix commit message (Laurent) Rebase due to earlier removal of many fb->pixel_format uses, including the 'fb->format = drm_format_info(fb->format->format);' snafu v3: Adjusted the semantic patch a bit and regenerated due to code changes Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1) Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: http://patchwork.freedesktop.org/patch/msgid/1481751175-18463-1-git-send-email-ville.syrjala@linux.intel.com
2016-12-14 21:32:55 +00:00
ret = drm_plane_check_pixel_format(plane, fb->format->format);
if (ret) {
struct drm_format_name_buf format_name;
DRM_DEBUG_KMS("Invalid pixel format %s\n",
drm: Nuke fb->pixel_format Replace uses of fb->pixel_format with fb->format->format. Less duplicated information is a good thing. Note that coccinelle failed to eliminate the "/* fourcc format */" comment from drm_framebuffer.h, so I had to do that part manually. @@ struct drm_framebuffer *FB; expression E; @@ drm_helper_mode_fill_fb_struct(...) { ... - FB->pixel_format = E; ... } @@ struct drm_framebuffer *FB; expression E; @@ i9xx_get_initial_plane_config(...) { ... - FB->pixel_format = E; ... } @@ struct drm_framebuffer *FB; expression E; @@ ironlake_get_initial_plane_config(...) { ... - FB->pixel_format = E; ... } @@ struct drm_framebuffer *FB; expression E; @@ skylake_get_initial_plane_config(...) { ... - FB->pixel_format = E; ... } @@ struct drm_framebuffer *a; struct drm_framebuffer b; @@ ( - a->pixel_format + a->format->format | - b.pixel_format + b.format->format ) @@ struct drm_plane_state *a; struct drm_plane_state b; @@ ( - a->fb->pixel_format + a->fb->format->format | - b.fb->pixel_format + b.fb->format->format ) @@ struct drm_crtc *CRTC; @@ ( - CRTC->primary->fb->pixel_format + CRTC->primary->fb->format->format | - CRTC->primary->state->fb->pixel_format + CRTC->primary->state->fb->format->format ) @@ struct drm_mode_set *set; @@ ( - set->fb->pixel_format + set->fb->format->format | - set->crtc->primary->fb->pixel_format + set->crtc->primary->fb->format->format ) @@ @@ struct drm_framebuffer { ... - uint32_t pixel_format; ... }; v2: Fix commit message (Laurent) Rebase due to earlier removal of many fb->pixel_format uses, including the 'fb->format = drm_format_info(fb->format->format);' snafu v3: Adjusted the semantic patch a bit and regenerated due to code changes Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1) Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: http://patchwork.freedesktop.org/patch/msgid/1481751175-18463-1-git-send-email-ville.syrjala@linux.intel.com
2016-12-14 21:32:55 +00:00
drm_get_format_name(fb->format->format,
&format_name));
goto out;
}
/* Give drivers some help against integer overflows */
if (crtc_w > INT_MAX ||
crtc_x > INT_MAX - (int32_t) crtc_w ||
crtc_h > INT_MAX ||
crtc_y > INT_MAX - (int32_t) crtc_h) {
DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
crtc_w, crtc_h, crtc_x, crtc_y);
ret = -ERANGE;
goto out;
}
ret = drm_framebuffer_check_src_coords(src_x, src_y, src_w, src_h, fb);
if (ret)
goto out;
plane->old_fb = plane->fb;
ret = plane->funcs->update_plane(plane, crtc, fb,
crtc_x, crtc_y, crtc_w, crtc_h,
src_x, src_y, src_w, src_h);
if (!ret) {
plane->crtc = crtc;
plane->fb = fb;
fb = NULL;
} else {
plane->old_fb = NULL;
}
out:
if (fb)
drm_framebuffer_unreference(fb);
if (plane->old_fb)
drm_framebuffer_unreference(plane->old_fb);
plane->old_fb = NULL;
return ret;
}
static int setplane_internal(struct drm_plane *plane,
struct drm_crtc *crtc,
struct drm_framebuffer *fb,
int32_t crtc_x, int32_t crtc_y,
uint32_t crtc_w, uint32_t crtc_h,
/* src_{x,y,w,h} values are 16.16 fixed point */
uint32_t src_x, uint32_t src_y,
uint32_t src_w, uint32_t src_h)
{
int ret;
drm_modeset_lock_all(plane->dev);
ret = __setplane_internal(plane, crtc, fb,
crtc_x, crtc_y, crtc_w, crtc_h,
src_x, src_y, src_w, src_h);
drm_modeset_unlock_all(plane->dev);
return ret;
}
int drm_mode_setplane(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_mode_set_plane *plane_req = data;
struct drm_plane *plane;
struct drm_crtc *crtc = NULL;
struct drm_framebuffer *fb = NULL;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
/*
* First, find the plane, crtc, and fb objects. If not available,
* we don't bother to call the driver.
*/
plane = drm_plane_find(dev, plane_req->plane_id);
if (!plane) {
DRM_DEBUG_KMS("Unknown plane ID %d\n",
plane_req->plane_id);
return -ENOENT;
}
if (plane_req->fb_id) {
fb = drm_framebuffer_lookup(dev, plane_req->fb_id);
if (!fb) {
DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
plane_req->fb_id);
return -ENOENT;
}
crtc = drm_crtc_find(dev, plane_req->crtc_id);
if (!crtc) {
DRM_DEBUG_KMS("Unknown crtc ID %d\n",
plane_req->crtc_id);
return -ENOENT;
}
}
/*
* setplane_internal will take care of deref'ing either the old or new
* framebuffer depending on success.
*/
return setplane_internal(plane, crtc, fb,
plane_req->crtc_x, plane_req->crtc_y,
plane_req->crtc_w, plane_req->crtc_h,
plane_req->src_x, plane_req->src_y,
plane_req->src_w, plane_req->src_h);
}
static int drm_mode_cursor_universal(struct drm_crtc *crtc,
struct drm_mode_cursor2 *req,
struct drm_file *file_priv)
{
struct drm_device *dev = crtc->dev;
struct drm_framebuffer *fb = NULL;
struct drm_mode_fb_cmd2 fbreq = {
.width = req->width,
.height = req->height,
.pixel_format = DRM_FORMAT_ARGB8888,
.pitches = { req->width * 4 },
.handles = { req->handle },
};
int32_t crtc_x, crtc_y;
uint32_t crtc_w = 0, crtc_h = 0;
uint32_t src_w = 0, src_h = 0;
int ret = 0;
BUG_ON(!crtc->cursor);
WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL);
/*
* Obtain fb we'll be using (either new or existing) and take an extra
* reference to it if fb != null. setplane will take care of dropping
* the reference if the plane update fails.
*/
if (req->flags & DRM_MODE_CURSOR_BO) {
if (req->handle) {
fb = drm_internal_framebuffer_create(dev, &fbreq, file_priv);
if (IS_ERR(fb)) {
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;
}
} else {
fb = crtc->cursor->fb;
if (fb)
drm_framebuffer_reference(fb);
}
if (req->flags & DRM_MODE_CURSOR_MOVE) {
crtc_x = req->x;
crtc_y = req->y;
} else {
crtc_x = crtc->cursor_x;
crtc_y = crtc->cursor_y;
}
if (fb) {
crtc_w = fb->width;
crtc_h = fb->height;
src_w = fb->width << 16;
src_h = fb->height << 16;
}
/*
* setplane_internal will take care of deref'ing either the old or new
* framebuffer depending on success.
*/
ret = __setplane_internal(crtc->cursor, crtc, fb,
crtc_x, crtc_y, crtc_w, crtc_h,
0, 0, src_w, src_h);
/* Update successful; save new cursor position, if necessary */
if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) {
crtc->cursor_x = req->x;
crtc->cursor_y = req->y;
}
return ret;
}
static int drm_mode_cursor_common(struct drm_device *dev,
struct drm_mode_cursor2 *req,
struct drm_file *file_priv)
{
struct drm_crtc *crtc;
int ret = 0;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
return -EINVAL;
crtc = drm_crtc_find(dev, req->crtc_id);
if (!crtc) {
DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
return -ENOENT;
}
/*
* If this crtc has a universal cursor plane, call that plane's update
* handler rather than using legacy cursor handlers.
*/
drm_modeset_lock_crtc(crtc, crtc->cursor);
if (crtc->cursor) {
ret = drm_mode_cursor_universal(crtc, req, file_priv);
goto out;
}
if (req->flags & DRM_MODE_CURSOR_BO) {
if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) {
ret = -ENXIO;
goto out;
}
/* Turns off the cursor if handle is 0 */
if (crtc->funcs->cursor_set2)
ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle,
req->width, req->height, req->hot_x, req->hot_y);
else
ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
req->width, req->height);
}
if (req->flags & DRM_MODE_CURSOR_MOVE) {
if (crtc->funcs->cursor_move) {
ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
} else {
ret = -EFAULT;
goto out;
}
}
out:
drm_modeset_unlock_crtc(crtc);
return ret;
}
int drm_mode_cursor_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv)
{
struct drm_mode_cursor *req = data;
struct drm_mode_cursor2 new_req;
memcpy(&new_req, req, sizeof(struct drm_mode_cursor));
new_req.hot_x = new_req.hot_y = 0;
return drm_mode_cursor_common(dev, &new_req, file_priv);
}
/*
* Set the cursor configuration based on user request. This implements the 2nd
* version of the cursor ioctl, which allows userspace to additionally specify
* the hotspot of the pointer.
*/
int drm_mode_cursor2_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv)
{
struct drm_mode_cursor2 *req = data;
return drm_mode_cursor_common(dev, req, file_priv);
}
int drm_mode_page_flip_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv)
{
struct drm_mode_crtc_page_flip_target *page_flip = data;
struct drm_crtc *crtc;
struct drm_framebuffer *fb = NULL;
struct drm_pending_vblank_event *e = NULL;
u32 target_vblank = page_flip->sequence;
int ret = -EINVAL;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS)
return -EINVAL;
if (page_flip->sequence != 0 && !(page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET))
return -EINVAL;
/* Only one of the DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags
* can be specified
*/
if ((page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET) == DRM_MODE_PAGE_FLIP_TARGET)
return -EINVAL;
if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip)
return -EINVAL;
crtc = drm_crtc_find(dev, page_flip->crtc_id);
if (!crtc)
return -ENOENT;
if (crtc->funcs->page_flip_target) {
u32 current_vblank;
int r;
r = drm_crtc_vblank_get(crtc);
if (r)
return r;
current_vblank = drm_crtc_vblank_count(crtc);
switch (page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET) {
case DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE:
if ((int)(target_vblank - current_vblank) > 1) {
DRM_DEBUG("Invalid absolute flip target %u, "
"must be <= %u\n", target_vblank,
current_vblank + 1);
drm_crtc_vblank_put(crtc);
return -EINVAL;
}
break;
case DRM_MODE_PAGE_FLIP_TARGET_RELATIVE:
if (target_vblank != 0 && target_vblank != 1) {
DRM_DEBUG("Invalid relative flip target %u, "
"must be 0 or 1\n", target_vblank);
drm_crtc_vblank_put(crtc);
return -EINVAL;
}
target_vblank += current_vblank;
break;
default:
target_vblank = current_vblank +
!(page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC);
break;
}
} else if (crtc->funcs->page_flip == NULL ||
(page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET)) {
return -EINVAL;
}
drm_modeset_lock_crtc(crtc, crtc->primary);
if (crtc->primary->fb == NULL) {
/* The framebuffer is currently unbound, presumably
* due to a hotplug event, that userspace has not
* yet discovered.
*/
ret = -EBUSY;
goto out;
}
fb = drm_framebuffer_lookup(dev, page_flip->fb_id);
if (!fb) {
ret = -ENOENT;
goto out;
}
if (crtc->state) {
const struct drm_plane_state *state = crtc->primary->state;
ret = drm_framebuffer_check_src_coords(state->src_x,
state->src_y,
state->src_w,
state->src_h,
fb);
} else {
ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb);
}
if (ret)
goto out;
drm: Replace 'format->format' comparisons to just 'format' comparisons Rather than compare the format u32s of two format infos, we can direclty compare the format info pointers themselves. Noramlly all the ->format pointers all point to somwehere in the big array, so this is a valid way to test for equality. Also drivers may want to point ->format at a private format info struct instead (eg. for special compressed formats with extra planes), so just comparing the pixel format values wouldn't necessaritly even work. But comparing the pointers will also take care of that case. @@ struct drm_framebuffer *a; struct drm_framebuffer *b; @@ ( - a->format->format != b->format->format + a->format != b->format | - a->format->format == b->format->format + a->format == b->format ) @@ struct drm_plane_state *a; struct drm_plane_state *b; @@ ( - a->fb->format->format != b->fb->format->format + a->fb->format != b->fb->format | - a->fb->format->format == b->fb->format->format + a->fb->format == b->fb->format ) @@ struct drm_crtc *crtc; struct drm_framebuffer *x; @@ ( - crtc->primary->fb->format->format != x->format->format + crtc->primary->fb->format != x->format | - x->format->format != crtc->primary->fb->format->format + x->format != crtc->primary->fb->format ) @@ struct drm_mode_set *set; @@ - set->fb->format->format != set->crtc->primary->fb->format->format + set->fb->format != set->crtc->primary->fb->format Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1479498793-31021-35-git-send-email-ville.syrjala@linux.intel.com Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2016-11-18 19:53:10 +00:00
if (crtc->primary->fb->format != fb->format) {
DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
ret = -EINVAL;
goto out;
}
if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
e = kzalloc(sizeof *e, GFP_KERNEL);
if (!e) {
ret = -ENOMEM;
goto out;
}
e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
e->event.base.length = sizeof(e->event);
e->event.user_data = page_flip->user_data;
ret = drm_event_reserve_init(dev, file_priv, &e->base, &e->event.base);
if (ret) {
kfree(e);
goto out;
}
}
crtc->primary->old_fb = crtc->primary->fb;
if (crtc->funcs->page_flip_target)
ret = crtc->funcs->page_flip_target(crtc, fb, e,
page_flip->flags,
target_vblank);
else
ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags);
if (ret) {
if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT)
drm_event_cancel_free(dev, &e->base);
/* Keep the old fb, don't unref it. */
crtc->primary->old_fb = NULL;
} else {
crtc->primary->fb = fb;
/* Unref only the old framebuffer. */
fb = NULL;
}
out:
if (ret && crtc->funcs->page_flip_target)
drm_crtc_vblank_put(crtc);
if (fb)
drm_framebuffer_unreference(fb);
if (crtc->primary->old_fb)
drm_framebuffer_unreference(crtc->primary->old_fb);
crtc->primary->old_fb = NULL;
drm_modeset_unlock_crtc(crtc);
return ret;
}