This patch only rename the variable name from enable_4GB to
dram_is_4gb for readable.
Signed-off-by: Yong Wu <yong.wu@xxxxxxxxxxxx>
Reviewed-by: Evan Green <evgreen@xxxxxxxxxxxx>
---
drivers/iommu/mtk_iommu.c | 10 +++++-----
drivers/iommu/mtk_iommu.h | 2 +-
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 86158d8..67cab2d 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -382,7 +382,7 @@ static int mtk_iommu_map(struct iommu_domain *domain, unsigned long iova,
int ret;
/* The "4GB mode" M4U physically can not use the lower remap of Dram. */
- if (data->plat_data->has_4gb_mode && data->enable_4GB)
+ if (data->plat_data->has_4gb_mode && data->dram_is_4gb)
paddr |= BIT_ULL(32);
spin_lock_irqsave(&dom->pgtlock, flags);
@@ -554,13 +554,13 @@ static int mtk_iommu_hw_init(const struct mtk_iommu_data *data)
writel_relaxed(regval, data->base + REG_MMU_INT_MAIN_CONTROL);
if (data->plat_data->m4u_plat == M4U_MT8173)
- regval = (data->protect_base >> 1) | (data->enable_4GB << 31);
+ regval = (data->protect_base >> 1) | (data->dram_is_4gb << 31);
else
regval = lower_32_bits(data->protect_base) |
upper_32_bits(data->protect_base);
writel_relaxed(regval, data->base + REG_MMU_IVRP_PADDR);
- if (data->enable_4GB && data->plat_data->has_vld_pa_rng) {
+ if (data->dram_is_4gb && data->plat_data->has_vld_pa_rng) {
/*
* If 4GB mode is enabled, the validate PA range is from
* 0x1_0000_0000 to 0x1_ffff_ffff. here record bit[32:30].
@@ -611,8 +611,8 @@ static int mtk_iommu_probe(struct platform_device *pdev)
return -ENOMEM;
data->protect_base = ALIGN(virt_to_phys(protect), MTK_PROTECT_PA_ALIGN);
- /* Whether the current dram is over 4GB */
- data->enable_4GB = !!(max_pfn > (BIT_ULL(32) >> PAGE_SHIFT));
+ /* Whether the current dram is 4GB. */
+ data->dram_is_4gb = !!(max_pfn > (BIT_ULL(32) >> PAGE_SHIFT));
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
data->base = devm_ioremap_resource(dev, res);
diff --git a/drivers/iommu/mtk_iommu.h b/drivers/iommu/mtk_iommu.h
index 753266b..e8114b2 100644
--- a/drivers/iommu/mtk_iommu.h
+++ b/drivers/iommu/mtk_iommu.h
@@ -65,7 +65,7 @@ struct mtk_iommu_data {
struct mtk_iommu_domain *m4u_dom;
struct iommu_group *m4u_group;
struct mtk_smi_iommu smi_imu; /* SMI larb iommu info */
- bool enable_4GB;
+ bool dram_is_4gb;
bool tlb_flush_active;
struct iommu_device iommu;
--
1.9.1
