xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/i915: Harden detection of missed interrupts

Browse Source 
Only declare a missed interrupt if we find that the GPU is idle with
waiters and a hangcheck interval has passed in which no new user
interrupts have been raised.

v2: Clear the stuck interrupt marker between successful batches

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1460195877-20520-3-git-send-email-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2016-04-09 10:57:55 +01:00
parent c04e0f3b4e
commit 12471ba87a
3 changed files with 35 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

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

@@ -87,6 +87,7 @@ enum intel_ring_hangcheck_action {
struct intel_ring_hangcheck {
u64 acthd;
u32 seqno;
unsigned user_interrupts;
int score;
enum intel_ring_hangcheck_action action;
int deadlock;
@@ -305,6 +306,7 @@ struct intel_engine_cs {
* inspecting request list.
*/
u32 last_submitted_seqno;
unsigned user_interrupts;
bool gpu_caches_dirty;