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msm: kgsl: Switch to default pagetables in case of NULL context

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Switch to default pagetables when context is NULL. This prevents
instances of page faults when switching to default pagetable when
GPU is busy.

CRS-fixed: 550082
Change-Id: I74bab681b823bf50e58b50b6cb819fbf93163bf7
Signed-off-by: Harsh Vardhan Dwivedi <hdwivedi@codeaurora.org>
This commit is contained in:
Harsh Vardhan Dwivedi
2013-10-09 17:08:29 -06:00
committed by Ed Tam
parent 18b9ef4640
commit 5e8779beb4
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/msm/adreno.c
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@@ -879,8 +879,10 @@ static int adreno_iommu_setstate(struct kgsl_device *device,
num_iommu_units = kgsl_mmu_get_num_iommu_units(&device->mmu);
context = kgsl_context_get(device, context_id);
if (context == NULL)
if (context == NULL) {
kgsl_mmu_device_setstate(&device->mmu, KGSL_CONTEXT_INVALID);
return -EINVAL;
}
adreno_ctx = ADRENO_CONTEXT(context);