evie/android_kernel_oneplus_msm8998
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msm: kgsl: Disable rbbm countable on a540

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The RBBM_ALWAYS_COUNT countable does not function properly
when top level clock gating is enabled. Return -EINVAL
when user requests this perfcounter.

CRs-Fixed: 1038778
Change-Id: I48d560ab2caa6ea467ac56bf0d323937a475cdde
Signed-off-by: Harshdeep Dhatt <hdhatt@codeaurora.org>
This commit is contained in:
Harshdeep Dhatt 2016-07-07 10:48:24 -06:00
parent 9e2d528dc4
commit da71b33976
2 changed files with 8 additions and 0 deletions
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3
drivers/gpu/msm/a5xx_reg.h
View file

@ -788,6 +788,9 @@
/* COUNTABLE FOR TSE PERFCOUNTER */
#define A5XX_TSE_INPUT_PRIM_NUM 0x6
/* COUNTABLE FOR RBBM PERFCOUNTER */
#define A5XX_RBBM_ALWAYS_COUNT 0x0
/* GPMU POWER COUNTERS */
#define A5XX_SP_POWER_COUNTER_0_LO 0xA840
#define A5XX_SP_POWER_COUNTER_0_HI 0xA841

5
drivers/gpu/msm/adreno_perfcounter.c
View file

@ -812,6 +812,11 @@ static int adreno_perfcounter_enable(struct adreno_device *adreno_dev,
case KGSL_PERFCOUNTER_GROUP_ALWAYSON_PWR:
_power_counter_enable_alwayson(adreno_dev, counters);
break;
case KGSL_PERFCOUNTER_GROUP_RBBM:
/* The following rbbm countable is not reliable on a540 */
if (adreno_is_a540(adreno_dev))
if (countable == A5XX_RBBM_ALWAYS_COUNT)
return -EINVAL;
default:
return _perfcounter_enable_default(adreno_dev, counters, group,
counter, countable);