evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

msm: kgsl: Allow draw context to perform only replay on recovery

Browse source 
Robust context attempts to perform a rendering that takes too long
whether due to an infinite loop in a shader or even just a rendering
operation that takes too long on the given hardware. This type of
attempts can result into GPU faults. Robust context expect driver
to replay IB instead skip IB and if it fails on replay context has
to be invalidated.

KGSL_CONTEXT_INVALIDATE_ON_FAULT flag allows draw context to execute
only replay policy on GPU fault recovery instead of going to default
recovery policy. User space has to set this flag during the context
creation.

Change-Id: If42dc5afc7d5ed1226b73ae5abfa2648d7acf2c3
Signed-off-by: Hareesh Gundu <hareeshg@codeaurora.org>
This commit is contained in:
Hareesh Gundu 2017-04-14 18:36:20 +05:30 • committed by Gerrit - the friendly Code Review server
parent 6cf6835d96
commit d689330ab5
4 changed files with 11 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
drivers/gpu/msm/adreno_dispatch.c
View file

@ -1041,6 +1041,13 @@ static void _set_ft_policy(struct adreno_device *adreno_dev,
*/
if (drawctxt->base.flags & KGSL_CONTEXT_NO_FAULT_TOLERANCE)
set_bit(KGSL_FT_DISABLE, &cmdobj->fault_policy);
/*
* Set the fault tolerance policy to FT_REPLAY - As context wants
* to invalidate it after a replay attempt fails. This doesn't
* require to execute the default FT policy.
*/
else if (drawctxt->base.flags & KGSL_CONTEXT_INVALIDATE_ON_FAULT)
set_bit(KGSL_FT_REPLAY, &cmdobj->fault_policy);
else
cmdobj->fault_policy = adreno_dev->ft_policy;
}

1
drivers/gpu/msm/adreno_drawctxt.c
View file

@ -346,6 +346,7 @@ adreno_drawctxt_create(struct kgsl_device_private *dev_priv,
KGSL_CONTEXT_PER_CONTEXT_TS |
KGSL_CONTEXT_USER_GENERATED_TS |
KGSL_CONTEXT_NO_FAULT_TOLERANCE |
KGSL_CONTEXT_INVALIDATE_ON_FAULT |
KGSL_CONTEXT_CTX_SWITCH |
KGSL_CONTEXT_PRIORITY_MASK |
KGSL_CONTEXT_TYPE_MASK |

1
drivers/gpu/msm/kgsl_device.h
View file

@ -77,6 +77,7 @@ enum kgsl_event_results {
{ KGSL_CONTEXT_PER_CONTEXT_TS, "PER_CONTEXT_TS" }, \
{ KGSL_CONTEXT_USER_GENERATED_TS, "USER_TS" }, \
{ KGSL_CONTEXT_NO_FAULT_TOLERANCE, "NO_FT" }, \
{ KGSL_CONTEXT_INVALIDATE_ON_FAULT, "INVALIDATE_ON_FAULT" }, \
{ KGSL_CONTEXT_PWR_CONSTRAINT, "PWR" }, \
{ KGSL_CONTEXT_SAVE_GMEM, "SAVE_GMEM" }

2
include/uapi/linux/msm_kgsl.h
View file

@ -67,6 +67,8 @@
#define KGSL_CONTEXT_TYPE_RS 4
#define KGSL_CONTEXT_TYPE_UNKNOWN 0x1E
#define KGSL_CONTEXT_INVALIDATE_ON_FAULT 0x10000000
#define KGSL_CONTEXT_INVALID 0xffffffff
/*