This is a note to let you know that I've just added the patch titled
drm/i915: call drm_handle_vblank before finish_page_flip
to the 3.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-i915-call-drm_handle_vblank-before-finish_page_flip.patch
and it can be found in the queue-3.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 74d44445afb9f50126eba052adeb89827cee88f3 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <[email protected]>
Date: Tue, 2 Oct 2012 17:54:35 +0200
Subject: drm/i915: call drm_handle_vblank before finish_page_flip
From: Daniel Vetter <[email protected]>
commit 74d44445afb9f50126eba052adeb89827cee88f3 upstream.
... since finish_page_flip needs the vblank timestamp generated
in drm_handle_vblank. Somehow all the gmch platforms get it right,
but all the pch platform irq handlers get is wrong. Hooray for copy&
pasting!
Currently this gets papered over by a gross hack in finish_page_flip.
A second patch will remove that.
Note that without this, the new timestamp sanity checks in flip_test
occasionally get tripped up, hence the cc: stable tag.
Reviewed-by: [email protected]
Tested-by: Imre Deak <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/i915/i915_irq.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -605,12 +605,12 @@ static irqreturn_t ivybridge_irq_handler
intel_opregion_gse_intr(dev);
for (i = 0; i < 3; i++) {
+ if (de_iir & (DE_PIPEA_VBLANK_IVB << (5 * i)))
+ drm_handle_vblank(dev, i);
if (de_iir & (DE_PLANEA_FLIP_DONE_IVB << (5 * i))) {
intel_prepare_page_flip(dev, i);
intel_finish_page_flip_plane(dev, i);
}
- if (de_iir & (DE_PIPEA_VBLANK_IVB << (5 * i)))
- drm_handle_vblank(dev, i);
}
/* check event from PCH */
@@ -692,6 +692,12 @@ static irqreturn_t ironlake_irq_handler(
if (de_iir & DE_GSE)
intel_opregion_gse_intr(dev);
+ if (de_iir & DE_PIPEA_VBLANK)
+ drm_handle_vblank(dev, 0);
+
+ if (de_iir & DE_PIPEB_VBLANK)
+ drm_handle_vblank(dev, 1);
+
if (de_iir & DE_PLANEA_FLIP_DONE) {
intel_prepare_page_flip(dev, 0);
intel_finish_page_flip_plane(dev, 0);
@@ -702,12 +708,6 @@ static irqreturn_t ironlake_irq_handler(
intel_finish_page_flip_plane(dev, 1);
}
- if (de_iir & DE_PIPEA_VBLANK)
- drm_handle_vblank(dev, 0);
-
- if (de_iir & DE_PIPEB_VBLANK)
- drm_handle_vblank(dev, 1);
-
/* check event from PCH */
if (de_iir & DE_PCH_EVENT) {
if (pch_iir & hotplug_mask)
Patches currently in stable-queue which might be from [email protected] are
queue-3.5/drm-i915-prevent-possible-pin-leak-on-error-path.patch
queue-3.5/drm-i915-flush-the-pending-flips-on-the-crtc-before-modification.patch
queue-3.5/drm-i915-fix-gt_mode-default-value.patch
queue-3.5/drm-i915-call-drm_handle_vblank-before-finish_page_flip.patch
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