msm: kgsl: Check if GPU is hung when reserving space in rb
A busy loop is executed when we allocate space from the ringbuffer.
If the GPU is hung then we can wait indefinitely in the busy loop.
Add a wait time to this busy loop, and if the wait time elapses then
report a GPU hang instead of waiting indefinitely.
Change-Id: I035c39063cbfa25380702720f929df5319e73e61
Signed-off-by: Shubhraprakash Das <sadas@codeaurora.org>
diff --git a/drivers/gpu/msm/kgsl_mmu.c b/drivers/gpu/msm/kgsl_mmu.c
index dfaadba..3e72919 100644
--- a/drivers/gpu/msm/kgsl_mmu.c
+++ b/drivers/gpu/msm/kgsl_mmu.c
@@ -543,13 +543,14 @@
}
EXPORT_SYMBOL(kgsl_mmu_putpagetable);
-void kgsl_setstate(struct kgsl_mmu *mmu, uint32_t flags)
+void kgsl_setstate(struct kgsl_mmu *mmu, unsigned int context_id,
+ uint32_t flags)
{
struct kgsl_device *device = mmu->device;
if (KGSL_MMU_TYPE_NONE == kgsl_mmu_type)
return;
else if (device->ftbl->setstate)
- device->ftbl->setstate(device, flags);
+ device->ftbl->setstate(device, context_id, flags);
else if (mmu->mmu_ops->mmu_device_setstate)
mmu->mmu_ops->mmu_device_setstate(mmu, flags);
}