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authorBjorn Andersson <bjorn.andersson@linaro.org>2016-03-28 21:35:23 -0700
committerAndy Gross <andy.gross@linaro.org>2016-04-19 21:55:06 -0500
commitafd356dfb3a4127b61a3519802a4db9046703724 (patch)
tree876dd959217a796b41c3b234b2e916e6ca6acb3a /drivers
parentb55b592ee374d3f04f41c2e6fd259ca2c0f1d333 (diff)
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 <bjorn.andersson@linaro.org> Reviewed-by: Andy Gross <andy.gross@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/soc/qcom/smem.c3
1 files changed, 1 insertions, 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;