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