evie/android_kernel_oneplus_msm8998
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msm: kgsl: Don't read stale crashdumper data

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After the crashdumper runs once, and the user sets the
snapshot_crashdumper sysfs node to 0, it is possible that stale data
is saved off into the snapshot. Check the value of the sysfs node at
the appropriate place to force a re-read of the data through the
legacy path.

Change-Id: Icf27c39b68d786003c33fd0eb22bd3e8b9a036be
Signed-off-by: Lynus Vaz <lvaz@codeaurora.org>
This commit is contained in:
Lynus Vaz 2017-09-13 20:21:07 +05:30
parent b95d667366
commit 1e450489ff
1 changed files with 3 additions and 2 deletions
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5
drivers/gpu/msm/adreno_a5xx_snapshot.c
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@ -765,6 +765,8 @@ static void _a5xx_do_crashdump(struct kgsl_device *device)
crash_dump_valid = false; crash_dump_valid = false;
if (!device->snapshot_crashdumper)
return;
if (capturescript.gpuaddr == 0 || registers.gpuaddr == 0) if (capturescript.gpuaddr == 0 || registers.gpuaddr == 0)
return; return;
@ -870,8 +872,7 @@ void a5xx_snapshot(struct adreno_device *adreno_dev,
ARRAY_SIZE(a5xx_vbif_snapshot_registers)); ARRAY_SIZE(a5xx_vbif_snapshot_registers));
/* Try to run the crash dumper */ /* Try to run the crash dumper */
if (device->snapshot_crashdumper) _a5xx_do_crashdump(device);
_a5xx_do_crashdump(device);
kgsl_snapshot_add_section(device, KGSL_SNAPSHOT_SECTION_REGS, kgsl_snapshot_add_section(device, KGSL_SNAPSHOT_SECTION_REGS,
snapshot, a5xx_snapshot_registers, NULL); snapshot, a5xx_snapshot_registers, NULL);