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author | Jiri Kosina <jkosina@suse.cz> | 2023-11-01 02:07:35 +0300 |
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committer | Jiri Kosina <jkosina@suse.cz> | 2023-11-01 02:07:35 +0300 |
commit | 20cd569d7ee8fce24e8753f0f43af6c420557b1f (patch) | |
tree | f559cfda594846795aa51c99d96f92d8c912851a /drivers/iommu/rockchip-iommu.c | |
parent | 62cc9c3cb3ec1bf31cc116146185ed97b450836a (diff) | |
parent | eeebfe6259ba2d5b0980eb7b0df384eb77e9e4f5 (diff) | |
download | linux-20cd569d7ee8fce24e8753f0f43af6c420557b1f.tar.xz |
Merge branch 'for-6.7/config_pm' into for-linus
- #ifdef CONFIG_PM removal from HID code (Thomas Weißschuh)
Diffstat (limited to 'drivers/iommu/rockchip-iommu.c')
-rw-r--r-- | drivers/iommu/rockchip-iommu.c | 50 |
1 files changed, 10 insertions, 40 deletions
diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c index 4054030c3237..8ff69fbf9f65 100644 --- a/drivers/iommu/rockchip-iommu.c +++ b/drivers/iommu/rockchip-iommu.c @@ -98,9 +98,8 @@ struct rk_iommu_ops { phys_addr_t (*pt_address)(u32 dte); u32 (*mk_dtentries)(dma_addr_t pt_dma); u32 (*mk_ptentries)(phys_addr_t page, int prot); - phys_addr_t (*dte_addr_phys)(u32 addr); - u32 (*dma_addr_dte)(dma_addr_t dt_dma); u64 dma_bit_mask; + gfp_t gfp_flags; }; struct rk_iommu { @@ -278,8 +277,8 @@ static u32 rk_mk_pte(phys_addr_t page, int prot) /* * In v2: * 31:12 - Page address bit 31:0 - * 11:9 - Page address bit 34:32 - * 8:4 - Page address bit 39:35 + * 11: 8 - Page address bit 35:32 + * 7: 4 - Page address bit 39:36 * 3 - Security * 2 - Writable * 1 - Readable @@ -506,7 +505,7 @@ static int rk_iommu_force_reset(struct rk_iommu *iommu) /* * Check if register DTE_ADDR is working by writing DTE_ADDR_DUMMY - * and verifying that upper 5 nybbles are read back. + * and verifying that upper 5 (v1) or 7 (v2) nybbles are read back. */ for (i = 0; i < iommu->num_mmu; i++) { dte_addr = rk_ops->pt_address(DTE_ADDR_DUMMY); @@ -531,33 +530,6 @@ static int rk_iommu_force_reset(struct rk_iommu *iommu) return 0; } -static inline phys_addr_t rk_dte_addr_phys(u32 addr) -{ - return (phys_addr_t)addr; -} - -static inline u32 rk_dma_addr_dte(dma_addr_t dt_dma) -{ - return dt_dma; -} - -#define DT_HI_MASK GENMASK_ULL(39, 32) -#define DTE_BASE_HI_MASK GENMASK(11, 4) -#define DT_SHIFT 28 - -static inline phys_addr_t rk_dte_addr_phys_v2(u32 addr) -{ - u64 addr64 = addr; - return (phys_addr_t)(addr64 & RK_DTE_PT_ADDRESS_MASK) | - ((addr64 & DTE_BASE_HI_MASK) << DT_SHIFT); -} - -static inline u32 rk_dma_addr_dte_v2(dma_addr_t dt_dma) -{ - return (dt_dma & RK_DTE_PT_ADDRESS_MASK) | - ((dt_dma & DT_HI_MASK) >> DT_SHIFT); -} - static void log_iova(struct rk_iommu *iommu, int index, dma_addr_t iova) { void __iomem *base = iommu->bases[index]; @@ -577,7 +549,7 @@ static void log_iova(struct rk_iommu *iommu, int index, dma_addr_t iova) page_offset = rk_iova_page_offset(iova); mmu_dte_addr = rk_iommu_read(base, RK_MMU_DTE_ADDR); - mmu_dte_addr_phys = rk_ops->dte_addr_phys(mmu_dte_addr); + mmu_dte_addr_phys = rk_ops->pt_address(mmu_dte_addr); dte_addr_phys = mmu_dte_addr_phys + (4 * dte_index); dte_addr = phys_to_virt(dte_addr_phys); @@ -756,7 +728,7 @@ static u32 *rk_dte_get_page_table(struct rk_iommu_domain *rk_domain, if (rk_dte_is_pt_valid(dte)) goto done; - page_table = (u32 *)get_zeroed_page(GFP_ATOMIC | GFP_DMA32); + page_table = (u32 *)get_zeroed_page(GFP_ATOMIC | rk_ops->gfp_flags); if (!page_table) return ERR_PTR(-ENOMEM); @@ -967,7 +939,7 @@ static int rk_iommu_enable(struct rk_iommu *iommu) for (i = 0; i < iommu->num_mmu; i++) { rk_iommu_write(iommu->bases[i], RK_MMU_DTE_ADDR, - rk_ops->dma_addr_dte(rk_domain->dt_dma)); + rk_ops->mk_dtentries(rk_domain->dt_dma)); rk_iommu_base_command(iommu->bases[i], RK_MMU_CMD_ZAP_CACHE); rk_iommu_write(iommu->bases[i], RK_MMU_INT_MASK, RK_MMU_IRQ_MASK); } @@ -1105,7 +1077,7 @@ static struct iommu_domain *rk_iommu_domain_alloc(unsigned type) * Each level1 (dt) and level2 (pt) table has 1024 4-byte entries. * Allocate one 4 KiB page for each table. */ - rk_domain->dt = (u32 *)get_zeroed_page(GFP_KERNEL | GFP_DMA32); + rk_domain->dt = (u32 *)get_zeroed_page(GFP_KERNEL | rk_ops->gfp_flags); if (!rk_domain->dt) goto err_free_domain; @@ -1405,18 +1377,16 @@ static struct rk_iommu_ops iommu_data_ops_v1 = { .pt_address = &rk_dte_pt_address, .mk_dtentries = &rk_mk_dte, .mk_ptentries = &rk_mk_pte, - .dte_addr_phys = &rk_dte_addr_phys, - .dma_addr_dte = &rk_dma_addr_dte, .dma_bit_mask = DMA_BIT_MASK(32), + .gfp_flags = GFP_DMA32, }; static struct rk_iommu_ops iommu_data_ops_v2 = { .pt_address = &rk_dte_pt_address_v2, .mk_dtentries = &rk_mk_dte_v2, .mk_ptentries = &rk_mk_pte_v2, - .dte_addr_phys = &rk_dte_addr_phys_v2, - .dma_addr_dte = &rk_dma_addr_dte_v2, .dma_bit_mask = DMA_BIT_MASK(40), + .gfp_flags = 0, }; static const struct of_device_id rk_iommu_dt_ids[] = { |