drivers/accel/ivpu/ivpu_mmu.h

   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_cd_set(struct ivpu_device *vdev, int ssid, struct ivpu_mmu_pgtable *pgtable);
  44 void ivpu_mmu_cd_clear(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 void ivpu_mmu_discard_events(struct ivpu_device *vdev);
  51 int ivpu_mmu_disable_ssid_events(struct ivpu_device *vdev, u32 ssid);
  52
  53 #endif /* __IVPU_MMU_H__ */