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Commit 2460bec9 authored by Jordan Crouse's avatar Jordan Crouse
Browse files

msm: kgsl: Make sure that IB addresses are dword aligned 



All IB GPU addresses should be dword aligned. Enforce that in software
to keep invalid addresses from bothering the CP.

Change-Id: Ic0dedbad2298ebbd20ca1b575b8e36dcbf5a1fbe
Signed-off-by: default avatarJordan Crouse <jcrouse@codeaurora.org>
parent 7b96268e

drivers/gpu/msm/adreno_dispatch.c

+3 −2
Original line number Diff line number Diff line
@@ -1134,8 +1134,9 @@ static inline bool _verify_ib(struct kgsl_device_private *dev_priv, 
		return false;

	}



	/* Make sure that the address is mapped */

	if (!kgsl_mmu_gpuaddr_in_range(private->pagetable, ib->gpuaddr)) {

	/* Make sure that the address is in range and dword aligned */

	if (!kgsl_mmu_gpuaddr_in_range(private->pagetable, ib->gpuaddr) ||

	    !IS_ALIGNED(ib->gpuaddr, 4)) {

		pr_context(device, context, "ctxt %d invalid ib gpuaddr %llX\n",

			context->id, ib->gpuaddr);

		return false;