Message ID | 20181209202950.31486-13-digetx@gmail.com |
---|---|
State | Superseded |
Headers | show |
Series | IOMMU: Tegra GART driver clean up and optimization | expand |
On Sun, Dec 09, 2018 at 11:29:41PM +0300, Dmitry Osipenko wrote: > There is no need for inserting of memory barriers to access registers of > Memory Controller. Hence use the relaxed versions of the accessors. > > Signed-off-by: Dmitry Osipenko <digetx@gmail.com> > --- > drivers/memory/tegra/mc.h | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) Acked-by: Thierry Reding <treding@nvidia.com>
diff --git a/drivers/memory/tegra/mc.h b/drivers/memory/tegra/mc.h index 9856f085e487..887a3b07334f 100644 --- a/drivers/memory/tegra/mc.h +++ b/drivers/memory/tegra/mc.h @@ -26,13 +26,13 @@ static inline u32 mc_readl(struct tegra_mc *mc, unsigned long offset) { - return readl(mc->regs + offset); + return readl_relaxed(mc->regs + offset); } static inline void mc_writel(struct tegra_mc *mc, u32 value, unsigned long offset) { - writel(value, mc->regs + offset); + writel_relaxed(value, mc->regs + offset); } extern const struct tegra_mc_reset_ops terga_mc_reset_ops_common;
There is no need for inserting of memory barriers to access registers of Memory Controller. Hence use the relaxed versions of the accessors. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- drivers/memory/tegra/mc.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)