[PATCH v10 13/23] iommu/mediatek: Refine protect memory definition
From: Yong Wu <hidden>
Date: 2019-08-21 13:56:27
Also in:
linux-arm-kernel, linux-iommu, linux-mediatek, lkml
Subsystem:
iommu subsystem, mediatek iommu driver, the rest · Maintainers:
Joerg Roedel, Will Deacon, Yong Wu, Linus Torvalds
The protect memory setting is a little different in the different SoCs. In the register REG_MMU_CTRL_REG(0x110), the TF_PROT(translation fault protect) shift bit is normally 4 while it shift 5 bits only in the mt8173. This patch delete the complex MACRO and use a common if-else instead. Signed-off-by: Yong Wu <yong.wu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> Reviewed-by: Evan Green <redacted> Reviewed-by: Matthias Brugger <redacted> --- drivers/iommu/mtk_iommu.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-)
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 34f0203..947a8c6b8 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c@@ -44,12 +44,9 @@ #define REG_MMU_DCM_DIS 0x050 #define REG_MMU_CTRL_REG 0x110 +#define F_MMU_TF_PROT_TO_PROGRAM_ADDR (2 << 4) #define F_MMU_PREFETCH_RT_REPLACE_MOD BIT(4) -#define F_MMU_TF_PROTECT_SEL_SHIFT(data) \ - ((data)->plat_data->m4u_plat == M4U_MT2712 ? 4 : 5) -/* It's named by F_MMU_TF_PROT_SEL in mt2712. */ -#define F_MMU_TF_PROTECT_SEL(prot, data) \ - (((prot) & 0x3) << F_MMU_TF_PROTECT_SEL_SHIFT(data)) +#define F_MMU_TF_PROT_TO_PROGRAM_ADDR_MT8173 (2 << 5) #define REG_MMU_IVRP_PADDR 0x114
@@ -539,9 +536,11 @@ static int mtk_iommu_hw_init(const struct mtk_iommu_data *data) return ret; } - regval = F_MMU_TF_PROTECT_SEL(2, data); if (data->plat_data->m4u_plat == M4U_MT8173) - regval |= F_MMU_PREFETCH_RT_REPLACE_MOD; + regval = F_MMU_PREFETCH_RT_REPLACE_MOD | + F_MMU_TF_PROT_TO_PROGRAM_ADDR_MT8173; + else + regval = F_MMU_TF_PROT_TO_PROGRAM_ADDR; writel_relaxed(regval, data->base + REG_MMU_CTRL_REG); regval = F_L2_MULIT_HIT_EN |
--
1.9.1