Merge "msm: kgsl: Enable IOMMU hazard check for QSMMU MMU type" (7fb4144f) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/gpu/msm/kgsl_iommu.c

+12 −0

Original line number	Diff line number	Diff line
		@@ -1651,6 +1651,18 @@ static int kgsl_iommu_start(struct kgsl_mmu *mmu)
		int status;
		struct kgsl_iommu *iommu = _IOMMU_PRIV(mmu);

		/* Set the following registers only when the MMU type is QSMMU */
		if (mmu->subtype != KGSL_IOMMU_SMMU_V500) {
		/* Enable hazard check from GPU_SMMU_HUM_CFG */
		writel_relaxed(0x02, iommu->regbase + 0x6800);

		/* Write to GPU_SMMU_DORA_ORDERING to disable reordering */
		writel_relaxed(0x01, iommu->regbase + 0x64a0);

		/* make sure register write committed */
		wmb();
		}

		status = _setup_user_context(mmu);
		if (status)
		return status;