From: Ville Syrj?l? <ville.syrj...@linux.intel.com>
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 at ffwll.ch>
Signed-off-by: Ville Syrj?l? <ville.syrjala at linux.intel.com>
---
drivers/gpu/drm/i915/i915_irq.c | 5 -----
drivers/gpu/drm/i915/intel_display.c | 2 --
drivers/gpu/drm/i915/intel_drv.h | 2 --
drivers/gpu/drm/i915/intel_sprite.c | 5 +++--
4 files changed, 3 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 304f86a..bc4cdbd 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1726,14 +1726,9 @@ 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;
}
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 019e9e1..aab638c 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -10966,8 +10966,6 @@ static void intel_crtc_init(struct drm_device *dev, int
pipe)
intel_crtc->plane = !pipe;
}
- 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;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index d7c52b2..0071138 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -408,8 +408,6 @@ struct intel_crtc {
struct intel_pipe_wm active;
} wm;
- wait_queue_head_t vbl_wait;
-
int scanline_offset;
};
diff --git a/drivers/gpu/drm/i915/intel_sprite.c
b/drivers/gpu/drm/i915/intel_sprite.c
index d6acd6b..7cd6a4f 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -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(!mutex_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);
--
1.8.5.5
