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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Ashish Mhetre PROD and CONS indices for vcmdqs are getting set to 0 after resume. Because of this the vcmdq is not consuming commands after resume. Fix this by restoring PROD and CONS indices after resume from saved pointers. Signed-off-by: Ashish Mhetre Signed-off-by: Pranjal Shrivastava --- drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c b/drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c index cb1e75e4ee91..866cae7b73e5 100644 --- a/drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c +++ b/drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c @@ -511,6 +511,8 @@ static int tegra241_vcmdq_hw_init(struct tegra241_vcmdq *vcmdq) /* Configure and enable VCMDQ */ writeq_relaxed(vcmdq->cmdq.q.q_base, REG_VCMDQ_PAGE1(vcmdq, BASE)); + writel_relaxed(vcmdq->cmdq.q.llq.prod, REG_VCMDQ_PAGE0(vcmdq, PROD)); + writel_relaxed(vcmdq->cmdq.q.llq.cons, REG_VCMDQ_PAGE0(vcmdq, CONS)); ret = vcmdq_write_config(vcmdq, VCMDQ_EN); if (ret) { -- 2.54.0.794.g4f17f83d09-goog