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| author | Joerg Roedel | 2019-07-01 13:44:41 +0200 |
|---|---|---|
| committer | Joerg Roedel | 2019-07-01 13:44:41 +0200 |
| commit | 39debdc1d7e615863b66e5e8c612e4f0e78b1e1b (patch) | |
| tree | 4a5a7e5b64524e88e73d19e4a96dc1cfecf8e967 /drivers/iommu/io-pgtable-arm-v7s.c | |
| parent | Linux 5.2-rc7 (diff) | |
| parent | iommu/io-pgtable: Support non-coherent page tables (diff) | |
| download | kernel-qcow2-linux-39debdc1d7e615863b66e5e8c612e4f0e78b1e1b.tar.gz kernel-qcow2-linux-39debdc1d7e615863b66e5e8c612e4f0e78b1e1b.tar.xz kernel-qcow2-linux-39debdc1d7e615863b66e5e8c612e4f0e78b1e1b.zip | |
Merge branch 'for-joerg/arm-smmu/updates' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into arm/smmu
Diffstat (limited to 'drivers/iommu/io-pgtable-arm-v7s.c')
| -rw-r--r-- | drivers/iommu/io-pgtable-arm-v7s.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c index aa7a3fa6dd09..0fc8dfab2abf 100644 --- a/drivers/iommu/io-pgtable-arm-v7s.c +++ b/drivers/iommu/io-pgtable-arm-v7s.c @@ -204,7 +204,7 @@ static void *__arm_v7s_alloc_table(int lvl, gfp_t gfp, dev_err(dev, "Page table does not fit in PTE: %pa", &phys); goto out_free; } - if (table && !(cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA)) { + if (table && !cfg->coherent_walk) { dma = dma_map_single(dev, table, size, DMA_TO_DEVICE); if (dma_mapping_error(dev, dma)) goto out_free; @@ -238,7 +238,7 @@ static void __arm_v7s_free_table(void *table, int lvl, struct device *dev = cfg->iommu_dev; size_t size = ARM_V7S_TABLE_SIZE(lvl); - if (!(cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA)) + if (!cfg->coherent_walk) dma_unmap_single(dev, __arm_v7s_dma_addr(table), size, DMA_TO_DEVICE); if (lvl == 1) @@ -250,7 +250,7 @@ static void __arm_v7s_free_table(void *table, int lvl, static void __arm_v7s_pte_sync(arm_v7s_iopte *ptep, int num_entries, struct io_pgtable_cfg *cfg) { - if (cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA) + if (cfg->coherent_walk) return; dma_sync_single_for_device(cfg->iommu_dev, __arm_v7s_dma_addr(ptep), @@ -716,7 +716,6 @@ static struct io_pgtable *arm_v7s_alloc_pgtable(struct io_pgtable_cfg *cfg, IO_PGTABLE_QUIRK_NO_PERMS | IO_PGTABLE_QUIRK_TLBI_ON_MAP | IO_PGTABLE_QUIRK_ARM_MTK_4GB | - IO_PGTABLE_QUIRK_NO_DMA | IO_PGTABLE_QUIRK_NON_STRICT)) return NULL; @@ -779,8 +778,11 @@ static struct io_pgtable *arm_v7s_alloc_pgtable(struct io_pgtable_cfg *cfg, /* TTBRs */ cfg->arm_v7s_cfg.ttbr[0] = virt_to_phys(data->pgd) | ARM_V7S_TTBR_S | ARM_V7S_TTBR_NOS | - ARM_V7S_TTBR_IRGN_ATTR(ARM_V7S_RGN_WBWA) | - ARM_V7S_TTBR_ORGN_ATTR(ARM_V7S_RGN_WBWA); + (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; return &data->iop; @@ -835,7 +837,8 @@ static int __init arm_v7s_do_selftests(void) .tlb = &dummy_tlb_ops, .oas = 32, .ias = 32, - .quirks = IO_PGTABLE_QUIRK_ARM_NS | IO_PGTABLE_QUIRK_NO_DMA, + .coherent_walk = true, + .quirks = IO_PGTABLE_QUIRK_ARM_NS, .pgsize_bitmap = SZ_4K | SZ_64K | SZ_1M | SZ_16M, }; unsigned int iova, size, iova_start; |