From: Bjorn Andersson Date: Tue, 29 Mar 2016 04:35:23 +0000 (-0700) Subject: soc: qcom: smem: Use write-combine remap for SMEM X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=afd356dfb3a4127b61a3519802a4db9046703724;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git 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 --- 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;