1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) 2020-2023 Intel Corporation 4 */ 5 6 #ifndef __IVPU_MMU_H__ 7 #define __IVPU_MMU_H__ 8 9 struct ivpu_device; 10 11 struct ivpu_mmu_cdtab { 12 void *base; 13 dma_addr_t dma; 14 }; 15 16 struct ivpu_mmu_strtab { 17 void *base; 18 dma_addr_t dma; 19 u64 dma_q; 20 u32 base_cfg; 21 }; 22 23 struct ivpu_mmu_queue { 24 void *base; 25 dma_addr_t dma; 26 u64 dma_q; 27 u32 prod; 28 u32 cons; 29 }; 30 31 struct ivpu_mmu_info { 32 struct mutex lock; /* Protects cdtab, strtab, cmdq, on */ 33 struct ivpu_mmu_cdtab cdtab; 34 struct ivpu_mmu_strtab strtab; 35 struct ivpu_mmu_queue cmdq; 36 struct ivpu_mmu_queue evtq; 37 bool on; 38 }; 39 40 int ivpu_mmu_init(struct ivpu_device *vdev); 41 void ivpu_mmu_disable(struct ivpu_device *vdev); 42 int ivpu_mmu_enable(struct ivpu_device *vdev); 43 int ivpu_mmu_set_pgtable(struct ivpu_device *vdev, int ssid, struct ivpu_mmu_pgtable *pgtable); 44 void ivpu_mmu_clear_pgtable(struct ivpu_device *vdev, int ssid); 45 int ivpu_mmu_invalidate_tlb(struct ivpu_device *vdev, u16 ssid); 46 47 void ivpu_mmu_irq_evtq_handler(struct ivpu_device *vdev); 48 void ivpu_mmu_irq_gerr_handler(struct ivpu_device *vdev); 49 void ivpu_mmu_evtq_dump(struct ivpu_device *vdev); 50 51 #endif /* __IVPU_MMU_H__ */ 52