Patch "drm/i915: fix up ring cleanup for the i830/i845 CS tlb w/a" has been added to the 3.10-stable tree

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



This is a note to let you know that I've just added the patch titled

    drm/i915: fix up ring cleanup for the i830/i845 CS tlb w/a

to the 3.10-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-fix-up-ring-cleanup-for-the-i830-i845-cs-tlb-w-a.patch
and it can be found in the queue-3.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From aaf8a5167291b65e9116cb8736d862965b57c13a Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@xxxxxxxx>
Date: Fri, 5 Jul 2013 23:39:50 +0200
Subject: drm/i915: fix up ring cleanup for the i830/i845 CS tlb w/a

From: Daniel Vetter <daniel.vetter@xxxxxxxx>

commit aaf8a5167291b65e9116cb8736d862965b57c13a upstream.

It's not a good idea to also run the pipe_control cleanup.

This regression has been introduced whith the original cs tlb w/a in

commit b45305fce5bb1abec263fcff9d81ebecd6306ede
Author: Daniel Vetter <daniel.vetter@xxxxxxxx>
Date:   Mon Dec 17 16:21:27 2012 +0100

    drm/i915: Implement workaround for broken CS tlb on i830/845

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64610
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/gpu/drm/i915/intel_ringbuffer.c |    9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -490,9 +490,6 @@ cleanup_pipe_control(struct intel_ring_b
 	struct pipe_control *pc = ring->private;
 	struct drm_i915_gem_object *obj;
 
-	if (!ring->private)
-		return;
-
 	obj = pc->obj;
 
 	kunmap(sg_page(obj->pages->sgl));
@@ -500,7 +497,6 @@ cleanup_pipe_control(struct intel_ring_b
 	drm_gem_object_unreference(&obj->base);
 
 	kfree(pc);
-	ring->private = NULL;
 }
 
 static int init_render_ring(struct intel_ring_buffer *ring)
@@ -571,7 +567,10 @@ static void render_ring_cleanup(struct i
 	if (HAS_BROKEN_CS_TLB(dev))
 		drm_gem_object_unreference(to_gem_object(ring->private));
 
-	cleanup_pipe_control(ring);
+	if (INTEL_INFO(dev)->gen >= 5)
+		cleanup_pipe_control(ring);
+
+	ring->private = NULL;
 }
 
 static void


Patches currently in stable-queue which might be from daniel.vetter@xxxxxxxx are

queue-3.10/drm-i915-correctly-restore-fences-with-objects-attached.patch
queue-3.10/partially-revert-drm-i915-unconditionally-use-mt-forcewake-on-hsw-ivb.patch
queue-3.10/drm-i915-fix-write-read-race-with-multiple-rings.patch
queue-3.10/drm-i915-fix-long-standing-snb-regression-in-power-consumption-after-resume-v2.patch
queue-3.10/drm-i915-fix-dereferencing-invalid-connectors-in-is_crtc_connector_off.patch
queue-3.10/drm-i915-quirk-no-pch_pwm_enable-for-dell-xps13-backlight.patch
queue-3.10/drm-i915-fix-incoherence-with-fence-updates-on-sandybridge.patch
queue-3.10/drm-i915-fix-up-gt-init-sequence-fallout.patch
queue-3.10/drm-i915-fix-up-ring-cleanup-for-the-i830-i845-cs-tlb-w-a.patch
queue-3.10/drm-i915-fix-missed-hunk-after-gt-access-breakage.patch
queue-3.10/drm-i915-serialize-almost-all-register-access.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]