From d7d07936a166e7421a6308eec443b707a9678580 Mon Sep 17 00:00:00 2001 From: Jordan Crouse Date: Thu, 17 Apr 2014 10:05:21 -0600 Subject: msm: kgsl: Mark the IOMMU setstate memory as read only Mark the IOMMU setstate memory as read only in the pagetable. Change-Id: Ic0dedbadb19e499c749cd744c3e89be3bcb4c2a2 Signed-off-by: Jordan Crouse --- drivers/gpu/msm/kgsl_mmu.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/msm/kgsl_mmu.c b/drivers/gpu/msm/kgsl_mmu.c index 95aac09..eb6d76f 100644 --- a/drivers/gpu/msm/kgsl_mmu.c +++ b/drivers/gpu/msm/kgsl_mmu.c @@ -377,6 +377,10 @@ int kgsl_mmu_init(struct kgsl_device *device) PAGE_SIZE); if (status) return status; + + /* Mark the setstate memory as read only */ + mmu->setstate_memory.flags |= KGSL_MEMFLAGS_GPUREADONLY; + kgsl_sharedmem_set(device, &mmu->setstate_memory, 0, 0, mmu->setstate_memory.size); -- cgit v1.1