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drm/i915: Kill intel_crtc->vbl_wait 

Share the waitqueue that drm_irq uses when performing the vblank evade
trick for atomic pipe updates.

v2: Keep intel_pipe_handle_vblank() (Chris)

Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2014-05-22 19:00:50 +03:00 committed by Daniel Vetter
parent 020178a1bc
commit 210871b67c
4 changed files with 3 additions and 11 deletions
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5
drivers/gpu/drm/i915/i915_irq.c
View File

@ -1989,14 +1989,9 @@ static void gen6_rps_irq_handler(struct drm_i915_private *dev_priv, u32 pm_iir)
static bool intel_pipe_handle_vblank(struct drm_device *dev, enum pipe pipe)
{
struct intel_crtc *crtc;
if (!drm_handle_vblank(dev, pipe))
return false;
crtc = to_intel_crtc(intel_get_crtc_for_pipe(dev, pipe));
wake_up(&crtc->vbl_wait);
return true;
}

2
drivers/gpu/drm/i915/intel_display.c
View File

@ -11870,8 +11870,6 @@ static void intel_crtc_init(struct drm_device *dev, int pipe)
intel_crtc->cursor_base = ~0;
intel_crtc->cursor_cntl = ~0;
init_waitqueue_head(&intel_crtc->vbl_wait);
BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL);
dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base;

2
drivers/gpu/drm/i915/intel_drv.h
View File

@ -425,8 +425,6 @@ struct intel_crtc {
struct intel_pipe_wm active;
} wm;
wait_queue_head_t vbl_wait;
int scanline_offset;
struct intel_mmio_flip mmio_flip;
};

5
drivers/gpu/drm/i915/intel_sprite.c
View File

@ -53,6 +53,7 @@ static bool intel_pipe_update_start(struct intel_crtc *crtc, uint32_t *start_vbl
enum pipe pipe = crtc->pipe;
long timeout = msecs_to_jiffies_timeout(1);
int scanline, min, max, vblank_start;
wait_queue_head_t *wq = drm_crtc_vblank_waitqueue(&crtc->base);
DEFINE_WAIT(wait);
WARN_ON(!drm_modeset_is_locked(&crtc->base.mutex));
@ -81,7 +82,7 @@ static bool intel_pipe_update_start(struct intel_crtc *crtc, uint32_t *start_vbl
* other CPUs can see the task state update by the time we
* read the scanline.
*/
prepare_to_wait(&crtc->vbl_wait, &wait, TASK_UNINTERRUPTIBLE);
prepare_to_wait(wq, &wait, TASK_UNINTERRUPTIBLE);
scanline = intel_get_crtc_scanline(crtc);
if (scanline < min || scanline > max)
@ -100,7 +101,7 @@ static bool intel_pipe_update_start(struct intel_crtc *crtc, uint32_t *start_vbl
local_irq_disable();
}
finish_wait(&crtc->vbl_wait, &wait);
finish_wait(wq, &wait);
drm_vblank_put(dev, pipe);