1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __RGA_MMU_INFO_H__ 3 #define __RGA_MMU_INFO_H__ 4 5 #include "rga_drv.h" 6 7 /* RGA_IOMMU register offsets */ 8 #define RGA_IOMMU_BASE 0xf00 9 #define RGA_IOMMU_DTE_ADDR (RGA_IOMMU_BASE + 0x00) /* Directory table address */ 10 #define RGA_IOMMU_STATUS (RGA_IOMMU_BASE + 0x04) 11 #define RGA_IOMMU_COMMAND (RGA_IOMMU_BASE + 0x08) 12 #define RGA_IOMMU_PAGE_FAULT_ADDR (RGA_IOMMU_BASE + 0x0C) /* IOVA of last page fault */ 13 #define RGA_IOMMU_ZAP_ONE_LINE (RGA_IOMMU_BASE + 0x10) /* Shootdown one IOTLB entry */ 14 #define RGA_IOMMU_INT_RAWSTAT (RGA_IOMMU_BASE + 0x14) /* IRQ status ignoring mask */ 15 #define RGA_IOMMU_INT_CLEAR (RGA_IOMMU_BASE + 0x18) /* Acknowledge and re-arm irq */ 16 #define RGA_IOMMU_INT_MASK (RGA_IOMMU_BASE + 0x1C) /* IRQ enable */ 17 #define RGA_IOMMU_INT_STATUS (RGA_IOMMU_BASE + 0x20) /* IRQ status after masking */ 18 #define RGA_IOMMU_AUTO_GATING (RGA_IOMMU_BASE + 0x24) 19 20 /* RGA_IOMMU_STATUS fields */ 21 #define RGA_IOMMU_STATUS_PAGING_ENABLED BIT(0) 22 #define RGA_IOMMU_STATUS_PAGE_FAULT_ACTIVE BIT(1) 23 #define RGA_IOMMU_STATUS_STALL_ACTIVE BIT(2) 24 #define RGA_IOMMU_STATUS_IDLE BIT(3) 25 #define RGA_IOMMU_STATUS_REPLAY_BUFFER_EMPTY BIT(4) 26 #define RGA_IOMMU_STATUS_PAGE_FAULT_IS_WRITE BIT(5) 27 #define RGA_IOMMU_STATUS_STALL_NOT_ACTIVE BIT(31) 28 29 /* RGA_IOMMU_COMMAND command values */ 30 #define RGA_IOMMU_CMD_ENABLE_PAGING 0 /* Enable memory translation */ 31 #define RGA_IOMMU_CMD_DISABLE_PAGING 1 /* Disable memory translation */ 32 #define RGA_IOMMU_CMD_ENABLE_STALL 2 /* Stall paging to allow other cmds */ 33 #define RGA_IOMMU_CMD_DISABLE_STALL 3 /* Stop stall re-enables paging */ 34 #define RGA_IOMMU_CMD_ZAP_CACHE 4 /* Shoot down entire IOTLB */ 35 #define RGA_IOMMU_CMD_PAGE_FAULT_DONE 5 /* Clear page fault */ 36 #define RGA_IOMMU_CMD_FORCE_RESET 6 /* Reset all registers */ 37 38 /* RGA_IOMMU_INT_* register fields */ 39 #define RGA_IOMMU_IRQ_PAGE_FAULT 0x01 /* page fault */ 40 #define RGA_IOMMU_IRQ_BUS_ERROR 0x02 /* bus read error */ 41 #define RGA_IOMMU_IRQ_MASK (RGA_IOMMU_IRQ_PAGE_FAULT | RGA_IOMMU_IRQ_BUS_ERROR) 42 43 /* 44 * The maximum input is 8192*8192, the maximum output is 4096*4096 45 * The size of physical pages requested is: 46 * (( maximum_input_value * 47 * maximum_input_value * format_bpp ) / 4K_page_size) + 1 48 */ 49 #define RGA2_PHY_PAGE_SIZE (((8192 * 8192 * 4) / 4096) + 1) 50 51 struct rga_mmu_base { 52 unsigned int *buf_virtual; 53 struct page **pages; 54 u8 buf_order; 55 u8 pages_order; 56 57 int32_t front; 58 int32_t back; 59 int32_t size; 60 int32_t curr; 61 }; 62 63 int rga_user_memory_check(struct page **pages, u32 w, u32 h, u32 format, int flag); 64 int rga_set_mmu_base(struct rga_job *job, struct rga2_req *req); 65 unsigned int *rga_mmu_buf_get(struct rga_mmu_base *mmu_base, uint32_t size); 66 67 struct rga_mmu_base *rga_mmu_base_init(size_t size); 68 void rga_mmu_base_free(struct rga_mmu_base **mmu_base); 69 70 int rga_iommu_detach(struct rga_iommu_info *info); 71 int rga_iommu_attach(struct rga_iommu_info *info); 72 struct rga_iommu_info *rga_iommu_probe(struct device *dev); 73 int rga_iommu_remove(struct rga_iommu_info *info); 74 75 int rga_iommu_bind(void); 76 void rga_iommu_unbind(void); 77 78 #endif 79 80