diff options
Diffstat (limited to 'drivers/iommu/io-pgtable-arm-v7s.c')
| -rw-r--r-- | drivers/iommu/io-pgtable-arm-v7s.c | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c index 7c3bd2c3cdca..4272fe4e17f4 100644 --- a/drivers/iommu/io-pgtable-arm-v7s.c +++ b/drivers/iommu/io-pgtable-arm-v7s.c @@ -149,8 +149,6 @@ #define ARM_V7S_TTBR_IRGN_ATTR(attr) \ ((((attr) & 0x1) << 6) | (((attr) & 0x2) >> 1)) -#define ARM_V7S_TCR_PD1 BIT(5) - #ifdef CONFIG_ZONE_DMA32 #define ARM_V7S_TABLE_GFP_DMA GFP_DMA32 #define ARM_V7S_TABLE_SLAB_FLAGS SLAB_CACHE_DMA32 @@ -798,8 +796,8 @@ static struct io_pgtable *arm_v7s_alloc_pgtable(struct io_pgtable_cfg *cfg, */ cfg->pgsize_bitmap &= SZ_4K | SZ_64K | SZ_1M | SZ_16M; - /* TCR: T0SZ=0, disable TTBR1 */ - cfg->arm_v7s_cfg.tcr = ARM_V7S_TCR_PD1; + /* TCR: T0SZ=0, EAE=0 (if applicable) */ + cfg->arm_v7s_cfg.tcr = 0; /* * TEX remap: the indices used map to the closest equivalent types @@ -822,15 +820,13 @@ static struct io_pgtable *arm_v7s_alloc_pgtable(struct io_pgtable_cfg *cfg, /* Ensure the empty pgd is visible before any actual TTBR write */ wmb(); - /* TTBRs */ - cfg->arm_v7s_cfg.ttbr[0] = virt_to_phys(data->pgd) | - ARM_V7S_TTBR_S | ARM_V7S_TTBR_NOS | - (cfg->coherent_walk ? - (ARM_V7S_TTBR_IRGN_ATTR(ARM_V7S_RGN_WBWA) | - ARM_V7S_TTBR_ORGN_ATTR(ARM_V7S_RGN_WBWA)) : - (ARM_V7S_TTBR_IRGN_ATTR(ARM_V7S_RGN_NC) | - ARM_V7S_TTBR_ORGN_ATTR(ARM_V7S_RGN_NC))); - cfg->arm_v7s_cfg.ttbr[1] = 0; + /* TTBR */ + cfg->arm_v7s_cfg.ttbr = virt_to_phys(data->pgd) | ARM_V7S_TTBR_S | + (cfg->coherent_walk ? (ARM_V7S_TTBR_NOS | + ARM_V7S_TTBR_IRGN_ATTR(ARM_V7S_RGN_WBWA) | + ARM_V7S_TTBR_ORGN_ATTR(ARM_V7S_RGN_WBWA)) : + (ARM_V7S_TTBR_IRGN_ATTR(ARM_V7S_RGN_NC) | + ARM_V7S_TTBR_ORGN_ATTR(ARM_V7S_RGN_NC))); return &data->iop; out_free_data: |