From afd356dfb3a4127b61a3519802a4db9046703724 Mon Sep 17 00:00:00 2001 From: Bjorn Andersson Date: Mon, 28 Mar 2016 21:35:23 -0700 Subject: [PATCH] soc: qcom: smem: Use write-combine remap for SMEM Mapping the SMEM region as write combine makes the contiguous writes in SMD perform better and also allows us to do unaligned read and writes on ARM64. Signed-off-by: Bjorn Andersson Reviewed-by: Andy Gross Signed-off-by: Andy Gross --- drivers/soc/qcom/smem.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/soc/qcom/smem.c b/drivers/soc/qcom/smem.c index 19019aa092e8..2e1aa9f130f4 100644 --- a/drivers/soc/qcom/smem.c +++ b/drivers/soc/qcom/smem.c @@ -684,8 +684,7 @@ static int qcom_smem_map_memory(struct qcom_smem *smem, struct device *dev, smem->regions[i].aux_base = (u32)r.start; smem->regions[i].size = resource_size(&r); - smem->regions[i].virt_base = devm_ioremap_nocache(dev, r.start, - resource_size(&r)); + smem->regions[i].virt_base = devm_ioremap_wc(dev, r.start, resource_size(&r)); if (!smem->regions[i].virt_base) return -ENOMEM; -- 2.20.1