| .. | .. |
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| 4 | 4 | |
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| 5 | 5 | #include "rga_drv.h" |
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| 6 | 6 | |
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| 7 | +/* RGA_IOMMU register offsets */ |
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| 8 | +#define RGA_IOMMU_BASE 0xf00 |
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| 9 | +#define RGA_IOMMU_DTE_ADDR (RGA_IOMMU_BASE + 0x00) /* Directory table address */ |
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| 10 | +#define RGA_IOMMU_STATUS (RGA_IOMMU_BASE + 0x04) |
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| 11 | +#define RGA_IOMMU_COMMAND (RGA_IOMMU_BASE + 0x08) |
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| 12 | +#define RGA_IOMMU_PAGE_FAULT_ADDR (RGA_IOMMU_BASE + 0x0C) /* IOVA of last page fault */ |
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| 13 | +#define RGA_IOMMU_ZAP_ONE_LINE (RGA_IOMMU_BASE + 0x10) /* Shootdown one IOTLB entry */ |
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| 14 | +#define RGA_IOMMU_INT_RAWSTAT (RGA_IOMMU_BASE + 0x14) /* IRQ status ignoring mask */ |
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| 15 | +#define RGA_IOMMU_INT_CLEAR (RGA_IOMMU_BASE + 0x18) /* Acknowledge and re-arm irq */ |
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| 16 | +#define RGA_IOMMU_INT_MASK (RGA_IOMMU_BASE + 0x1C) /* IRQ enable */ |
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| 17 | +#define RGA_IOMMU_INT_STATUS (RGA_IOMMU_BASE + 0x20) /* IRQ status after masking */ |
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| 18 | +#define RGA_IOMMU_AUTO_GATING (RGA_IOMMU_BASE + 0x24) |
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| 19 | + |
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| 20 | +/* RGA_IOMMU_STATUS fields */ |
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| 21 | +#define RGA_IOMMU_STATUS_PAGING_ENABLED BIT(0) |
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| 22 | +#define RGA_IOMMU_STATUS_PAGE_FAULT_ACTIVE BIT(1) |
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| 23 | +#define RGA_IOMMU_STATUS_STALL_ACTIVE BIT(2) |
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| 24 | +#define RGA_IOMMU_STATUS_IDLE BIT(3) |
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| 25 | +#define RGA_IOMMU_STATUS_REPLAY_BUFFER_EMPTY BIT(4) |
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| 26 | +#define RGA_IOMMU_STATUS_PAGE_FAULT_IS_WRITE BIT(5) |
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| 27 | +#define RGA_IOMMU_STATUS_STALL_NOT_ACTIVE BIT(31) |
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| 28 | + |
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| 29 | +/* RGA_IOMMU_COMMAND command values */ |
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| 30 | +#define RGA_IOMMU_CMD_ENABLE_PAGING 0 /* Enable memory translation */ |
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| 31 | +#define RGA_IOMMU_CMD_DISABLE_PAGING 1 /* Disable memory translation */ |
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| 32 | +#define RGA_IOMMU_CMD_ENABLE_STALL 2 /* Stall paging to allow other cmds */ |
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| 33 | +#define RGA_IOMMU_CMD_DISABLE_STALL 3 /* Stop stall re-enables paging */ |
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| 34 | +#define RGA_IOMMU_CMD_ZAP_CACHE 4 /* Shoot down entire IOTLB */ |
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| 35 | +#define RGA_IOMMU_CMD_PAGE_FAULT_DONE 5 /* Clear page fault */ |
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| 36 | +#define RGA_IOMMU_CMD_FORCE_RESET 6 /* Reset all registers */ |
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| 37 | + |
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| 38 | +/* RGA_IOMMU_INT_* register fields */ |
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| 39 | +#define RGA_IOMMU_IRQ_PAGE_FAULT 0x01 /* page fault */ |
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| 40 | +#define RGA_IOMMU_IRQ_BUS_ERROR 0x02 /* bus read error */ |
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| 41 | +#define RGA_IOMMU_IRQ_MASK (RGA_IOMMU_IRQ_PAGE_FAULT | RGA_IOMMU_IRQ_BUS_ERROR) |
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| 42 | + |
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| 7 | 43 | /* |
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| 8 | 44 | * The maximum input is 8192*8192, the maximum output is 4096*4096 |
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| 9 | 45 | * The size of physical pages requested is: |
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