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drm/atomic: Move framebuffer checks to helper

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Currently framebuffer checks happen directly in
drm_atomic_plane_check(). Move these checks into their own helper
method.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Sebastian Wick <sebastian@sebastianwick.net>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231027-solid-fill-v7-6-780188bfa7b2@quicinc.com
This commit is contained in:
Jessica Zhang
2023-10-27 15:32:56 -07:00
committed by Dmitry Baryshkov
parent e86413f544
commit 4ba6b7a646
1 changed files with 73 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files

130
drivers/gpu/drm/drm_atomic.c
View File

@@ -589,6 +589,76 @@ plane_switching_crtc(const struct drm_plane_state *old_plane_state,
return true;
}
static int drm_atomic_plane_check_fb(const struct drm_plane_state *state)
{
struct drm_plane *plane = state->plane;
const struct drm_framebuffer *fb = state->fb;
struct drm_mode_rect *clips;
uint32_t num_clips;
unsigned int fb_width, fb_height;
int ret;
/* Check whether this plane supports the fb pixel format. */
ret = drm_plane_check_pixel_format(plane, fb->format->format,
fb->modifier);
if (ret) {
drm_dbg_atomic(plane->dev,
"[PLANE:%d:%s] invalid pixel format %p4cc, modifier 0x%llx\n",
plane->base.id, plane->name,
&fb->format->format, fb->modifier);
return ret;
}
fb_width = fb->width << 16;
fb_height = fb->height << 16;
/* Make sure source coordinates are inside the fb. */
if (state->src_w > fb_width ||
state->src_x > fb_width - state->src_w ||
state->src_h > fb_height ||
state->src_y > fb_height - state->src_h) {
drm_dbg_atomic(plane->dev,
"[PLANE:%d:%s] invalid source coordinates "
"%u.%06ux%u.%06u+%u.%06u+%u.%06u (fb %ux%u)\n",
plane->base.id, plane->name,
state->src_w >> 16,
((state->src_w & 0xffff) * 15625) >> 10,
state->src_h >> 16,
((state->src_h & 0xffff) * 15625) >> 10,
state->src_x >> 16,
((state->src_x & 0xffff) * 15625) >> 10,
state->src_y >> 16,
((state->src_y & 0xffff) * 15625) >> 10,
fb->width, fb->height);
return -ENOSPC;
}
clips = __drm_plane_get_damage_clips(state);
num_clips = drm_plane_get_damage_clips_count(state);
/* Make sure damage clips are valid and inside the fb. */
while (num_clips > 0) {
if (clips->x1 >= clips->x2 ||
clips->y1 >= clips->y2 ||
clips->x1 < 0 ||
clips->y1 < 0 ||
clips->x2 > fb_width ||
clips->y2 > fb_height) {
drm_dbg_atomic(plane->dev,
"[PLANE:%d:%s] invalid damage clip %d %d %d %d\n",
plane->base.id, plane->name, clips->x1,
clips->y1, clips->x2, clips->y2);
return -EINVAL;
}
clips++;
num_clips--;
}
return 0;
}
/**
* drm_atomic_plane_check - check plane state
* @old_plane_state: old plane state to check
@@ -605,9 +675,6 @@ static int drm_atomic_plane_check(const struct drm_plane_state *old_plane_state,
struct drm_plane *plane = new_plane_state->plane;
struct drm_crtc *crtc = new_plane_state->crtc;
const struct drm_framebuffer *fb = new_plane_state->fb;
unsigned int fb_width, fb_height;
struct drm_mode_rect *clips;
uint32_t num_clips;
int ret;
/* either *both* CRTC and FB must be set, or neither */
@@ -634,17 +701,6 @@ static int drm_atomic_plane_check(const struct drm_plane_state *old_plane_state,
return -EINVAL;
}
/* Check whether this plane supports the fb pixel format. */
ret = drm_plane_check_pixel_format(plane, fb->format->format,
fb->modifier);
if (ret) {
drm_dbg_atomic(plane->dev,
"[PLANE:%d:%s] invalid pixel format %p4cc, modifier 0x%llx\n",
plane->base.id, plane->name,
&fb->format->format, fb->modifier);
return ret;
}
/* Give drivers some help against integer overflows */
if (new_plane_state->crtc_w > INT_MAX ||
new_plane_state->crtc_x > INT_MAX - (int32_t) new_plane_state->crtc_w ||
@@ -658,50 +714,10 @@ static int drm_atomic_plane_check(const struct drm_plane_state *old_plane_state,
return -ERANGE;
}
fb_width = fb->width << 16;
fb_height = fb->height << 16;
/* Make sure source coordinates are inside the fb. */
if (new_plane_state->src_w > fb_width ||
new_plane_state->src_x > fb_width - new_plane_state->src_w ||
new_plane_state->src_h > fb_height ||
new_plane_state->src_y > fb_height - new_plane_state->src_h) {
drm_dbg_atomic(plane->dev,
"[PLANE:%d:%s] invalid source coordinates "
"%u.%06ux%u.%06u+%u.%06u+%u.%06u (fb %ux%u)\n",
plane->base.id, plane->name,
new_plane_state->src_w >> 16,
((new_plane_state->src_w & 0xffff) * 15625) >> 10,
new_plane_state->src_h >> 16,
((new_plane_state->src_h & 0xffff) * 15625) >> 10,
new_plane_state->src_x >> 16,
((new_plane_state->src_x & 0xffff) * 15625) >> 10,
new_plane_state->src_y >> 16,
((new_plane_state->src_y & 0xffff) * 15625) >> 10,
fb->width, fb->height);
return -ENOSPC;
}
clips = __drm_plane_get_damage_clips(new_plane_state);
num_clips = drm_plane_get_damage_clips_count(new_plane_state);
/* Make sure damage clips are valid and inside the fb. */
while (num_clips > 0) {
if (clips->x1 >= clips->x2 ||
clips->y1 >= clips->y2 ||
clips->x1 < 0 ||
clips->y1 < 0 ||
clips->x2 > fb_width ||
clips->y2 > fb_height) {
drm_dbg_atomic(plane->dev,
"[PLANE:%d:%s] invalid damage clip %d %d %d %d\n",
plane->base.id, plane->name, clips->x1,
clips->y1, clips->x2, clips->y2);
return -EINVAL;
}
clips++;
num_clips--;
}
ret = drm_atomic_plane_check_fb(new_plane_state);
if (ret)
return ret;
if (plane_switching_crtc(old_plane_state, new_plane_state)) {
drm_dbg_atomic(plane->dev,