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msm: kgsl: Fill a6xx crash dumper buffer with known pattern

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Sometimes crashdumper can timeout due to  unresponsive hang
scenarios. Hence fill the crash dumper with known pattern to
know the progress of crashdumper before it gets timed out.

Change-Id: I757fa345b4d7db7d7012ff6501b169a562f9b9c6
Signed-off-by: Hareesh Gundu <hareeshg@codeaurora.org>
This commit is contained in:
Hareesh Gundu 2020-11-04 19:35:33 +05:30
commit bfdf436e78
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/msm/adreno_a6xx_snapshot.c
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@ -1582,6 +1582,9 @@ static void _a6xx_do_crashdump(struct kgsl_device *device)
if (a6xx_is_smmu_stalled(device))
return;
memset(a6xx_crashdump_registers->hostptr, 0xaa,
a6xx_crashdump_registers->size);
/* Turn on APRIV for legacy targets so we can access the buffers */
if (!ADRENO_FEATURE(ADRENO_DEVICE(device), ADRENO_APRIV))
kgsl_regwrite(device, A6XX_CP_MISC_CNTL, 1);