Merge "iommu: msm: do tight polling for TLBSTATUS checking" (a4229061) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/iommu/msm_iommu-v1.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -355,8 +355,10 @@ static void __sync_tlb(struct msm_iommu_drvdata *iommu_drvdata, int ctx,
		SET_TLBSYNC(base, ctx, 0);
		/* No barrier needed due to read dependency */

		res = readl_poll_timeout_atomic(CTX_REG(CB_TLBSTATUS, base, ctx), val,
		(val & CB_TLBSTATUS_SACTIVE) == 0, 10000, 50);
		res = readl_relaxed_poll_timeout_atomic(
		CTX_REG(CB_TLBSTATUS, base, ctx),
		val, (val & CB_TLBSTATUS_SACTIVE) == 0,
		1, 500000);
		if (res)
		check_tlb_sync_state(iommu_drvdata, ctx, priv);
		}