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drm/i915: split intel_primary_plane_setplane() into check() and commit() 

As a preparation for atomic updates we need to split the code to check
everything we are going to commit first. This patch starts the work to
split intel_primary_plane_setplane() into check() and commit() parts.

More work is expected on this to get a better split of the two steps.
Ideally the commit() step should never fail.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Gustavo Padovan 2014-09-05 17:04:49 -03:00 committed by Daniel Vetter
parent 852e787c4c
commit 3c692a4162
1 changed files with 75 additions and 58 deletions
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133
drivers/gpu/drm/i915/intel_display.c
View File

@ -11807,63 +11807,37 @@ disable_unpin:
}
static int
intel_primary_plane_setplane(struct drm_plane *plane, struct drm_crtc *crtc,
struct drm_framebuffer *fb, int crtc_x, int crtc_y,
unsigned int crtc_w, unsigned int crtc_h,
uint32_t src_x, uint32_t src_y,
uint32_t src_w, uint32_t src_h)
intel_check_primary_plane(struct drm_plane *plane,
struct intel_plane_state *state)
{
struct drm_crtc *crtc = state->crtc;
struct drm_framebuffer *fb = state->fb;
struct drm_rect *dest = &state->dst;
struct drm_rect *src = &state->src;
const struct drm_rect *clip = &state->clip;
return drm_plane_helper_check_update(plane, crtc, fb,
src, dest, clip,
DRM_PLANE_HELPER_NO_SCALING,
DRM_PLANE_HELPER_NO_SCALING,
false, true, &state->visible);
}
static int
intel_commit_primary_plane(struct drm_plane *plane,
struct intel_plane_state *state)
{
struct drm_crtc *crtc = state->crtc;
struct drm_framebuffer *fb = state->fb;
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct drm_i915_gem_object *obj = intel_fb_obj(fb);
struct drm_i915_gem_object *old_obj = intel_fb_obj(plane->fb);
struct drm_rect dest = {
/* integer pixels */
.x1 = crtc_x,
.y1 = crtc_y,
.x2 = crtc_x + crtc_w,
.y2 = crtc_y + crtc_h,
};
struct drm_rect src = {
/* 16.16 fixed point */
.x1 = src_x,
.y1 = src_y,
.x2 = src_x + src_w,
.y2 = src_y + src_h,
};
const struct drm_rect clip = {
/* integer pixels */
.x2 = intel_crtc->active ? intel_crtc->config.pipe_src_w : 0,
.y2 = intel_crtc->active ? intel_crtc->config.pipe_src_h : 0,
};
const struct {
int crtc_x, crtc_y;
unsigned int crtc_w, crtc_h;
uint32_t src_x, src_y, src_w, src_h;
} orig = {
.crtc_x = crtc_x,
.crtc_y = crtc_y,
.crtc_w = crtc_w,
.crtc_h = crtc_h,
.src_x = src_x,
.src_y = src_y,
.src_w = src_w,
.src_h = src_h,
};
struct intel_plane *intel_plane = to_intel_plane(plane);
bool visible;
struct drm_rect *src = &state->src;
int ret;
ret = drm_plane_helper_check_update(plane, crtc, fb,
&src, &dest, &clip,
DRM_PLANE_HELPER_NO_SCALING,
DRM_PLANE_HELPER_NO_SCALING,
false, true, &visible);
if (ret)
return ret;
/*
* If the CRTC isn't enabled, we're just pinning the framebuffer,
* updating the fb pointer, and returning without touching the
@ -11898,7 +11872,7 @@ intel_primary_plane_setplane(struct drm_plane *plane, struct drm_crtc *crtc,
* happens if userspace explicitly disables the plane by passing fb=0
* because plane->fb still gets set and pinned.
*/
if (!visible) {
if (!state->visible) {
mutex_lock(&dev->struct_mutex);
/*
@ -11945,7 +11919,7 @@ intel_primary_plane_setplane(struct drm_plane *plane, struct drm_crtc *crtc,
intel_disable_fbc(dev);
}
}
ret = intel_pipe_set_base(crtc, src.x1, src.y1, fb);
ret = intel_pipe_set_base(crtc, src->x1, src->y1, fb);
if (ret)
return ret;
@ -11953,19 +11927,62 @@ intel_primary_plane_setplane(struct drm_plane *plane, struct drm_crtc *crtc,
intel_enable_primary_hw_plane(plane, crtc);
}
intel_plane->crtc_x = orig.crtc_x;
intel_plane->crtc_y = orig.crtc_y;
intel_plane->crtc_w = orig.crtc_w;
intel_plane->crtc_h = orig.crtc_h;
intel_plane->src_x = orig.src_x;
intel_plane->src_y = orig.src_y;
intel_plane->src_w = orig.src_w;
intel_plane->src_h = orig.src_h;
intel_plane->crtc_x = state->orig_dst.x1;
intel_plane->crtc_y = state->orig_dst.y1;
intel_plane->crtc_w = drm_rect_width(&state->orig_dst);
intel_plane->crtc_h = drm_rect_height(&state->orig_dst);
intel_plane->src_x = state->orig_src.x1;
intel_plane->src_y = state->orig_src.y1;
intel_plane->src_w = drm_rect_width(&state->orig_src);
intel_plane->src_h = drm_rect_height(&state->orig_src);
intel_plane->obj = obj;
return 0;
}
static int
intel_primary_plane_setplane(struct drm_plane *plane, struct drm_crtc *crtc,
struct drm_framebuffer *fb, int crtc_x, int crtc_y,
unsigned int crtc_w, unsigned int crtc_h,
uint32_t src_x, uint32_t src_y,
uint32_t src_w, uint32_t src_h)
{
struct intel_plane_state state;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int ret;
state.crtc = crtc;
state.fb = fb;
/* sample coordinates in 16.16 fixed point */
state.src.x1 = src_x;
state.src.x2 = src_x + src_w;
state.src.y1 = src_y;
state.src.y2 = src_y + src_h;
/* integer pixels */
state.dst.x1 = crtc_x;
state.dst.x2 = crtc_x + crtc_w;
state.dst.y1 = crtc_y;
state.dst.y2 = crtc_y + crtc_h;
state.clip.x1 = 0;
state.clip.y1 = 0;
state.clip.x2 = intel_crtc->active ? intel_crtc->config.pipe_src_w : 0;
state.clip.y2 = intel_crtc->active ? intel_crtc->config.pipe_src_h : 0;
state.orig_src = state.src;
state.orig_dst = state.dst;
ret = intel_check_primary_plane(plane, &state);
if (ret)
return ret;
intel_commit_primary_plane(plane, &state);
return 0;
}
/* Common destruction function for both primary and cursor planes */
static void intel_plane_destroy(struct drm_plane *plane)
{