| 1 | /* SPDX-License-Identifier: GPL-2.0-only OR MIT */ |
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| 2 | /* Copyright (c) 2023 Imagination Technologies Ltd. */ |
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| 3 | |
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| 4 | #ifndef PVR_VM_H |
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| 5 | #define PVR_VM_H |
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| 6 | |
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| 7 | #include "pvr_rogue_mmu_defs.h" |
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| 8 | |
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| 9 | #include <uapi/drm/pvr_drm.h> |
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| 10 | |
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| 11 | #include <linux/types.h> |
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| 12 | |
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| 13 | /* Forward declaration from "pvr_device.h" */ |
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| 14 | struct pvr_device; |
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| 15 | struct pvr_file; |
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| 16 | |
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| 17 | /* Forward declaration from "pvr_gem.h" */ |
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| 18 | struct pvr_gem_object; |
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| 19 | |
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| 20 | /* Forward declaration from "pvr_vm.c" */ |
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| 21 | struct pvr_vm_context; |
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| 22 | |
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| 23 | /* Forward declaration from <uapi/drm/pvr_drm.h> */ |
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| 24 | struct drm_pvr_ioctl_get_heap_info_args; |
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| 25 | |
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| 26 | /* Forward declaration from <drm/drm_exec.h> */ |
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| 27 | struct drm_exec; |
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| 28 | |
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| 29 | /* Functions defined in pvr_vm.c */ |
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| 30 | |
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| 31 | bool pvr_device_addr_is_valid(u64 device_addr); |
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| 32 | bool pvr_device_addr_and_size_are_valid(struct pvr_vm_context *vm_ctx, |
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| 33 | u64 device_addr, u64 size); |
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| 34 | |
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| 35 | struct pvr_vm_context *pvr_vm_create_context(struct pvr_device *pvr_dev, |
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| 36 | bool is_userspace_context); |
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| 37 | |
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| 38 | int pvr_vm_map(struct pvr_vm_context *vm_ctx, |
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| 39 | struct pvr_gem_object *pvr_obj, u64 pvr_obj_offset, |
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| 40 | u64 device_addr, u64 size); |
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| 41 | int pvr_vm_unmap_obj(struct pvr_vm_context *vm_ctx, |
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| 42 | struct pvr_gem_object *pvr_obj, |
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| 43 | u64 device_addr, u64 size); |
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| 44 | int pvr_vm_unmap(struct pvr_vm_context *vm_ctx, u64 device_addr, u64 size); |
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| 45 | void pvr_vm_unmap_all(struct pvr_vm_context *vm_ctx); |
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| 46 | |
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| 47 | dma_addr_t pvr_vm_get_page_table_root_addr(struct pvr_vm_context *vm_ctx); |
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| 48 | struct dma_resv *pvr_vm_get_dma_resv(struct pvr_vm_context *vm_ctx); |
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| 49 | |
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| 50 | int pvr_static_data_areas_get(const struct pvr_device *pvr_dev, |
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| 51 | struct drm_pvr_ioctl_dev_query_args *args); |
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| 52 | int pvr_heap_info_get(const struct pvr_device *pvr_dev, |
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| 53 | struct drm_pvr_ioctl_dev_query_args *args); |
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| 54 | const struct drm_pvr_heap *pvr_find_heap_containing(struct pvr_device *pvr_dev, |
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| 55 | u64 addr, u64 size); |
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| 56 | |
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| 57 | struct pvr_gem_object *pvr_vm_find_gem_object(struct pvr_vm_context *vm_ctx, |
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| 58 | u64 device_addr, |
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| 59 | u64 *mapped_offset_out, |
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| 60 | u64 *mapped_size_out); |
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| 61 | |
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| 62 | struct pvr_fw_object * |
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| 63 | pvr_vm_get_fw_mem_context(struct pvr_vm_context *vm_ctx); |
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| 64 | |
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| 65 | struct pvr_vm_context *pvr_vm_context_lookup(struct pvr_file *pvr_file, u32 handle); |
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| 66 | struct pvr_vm_context *pvr_vm_context_get(struct pvr_vm_context *vm_ctx); |
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| 67 | bool pvr_vm_context_put(struct pvr_vm_context *vm_ctx); |
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| 68 | void pvr_destroy_vm_contexts_for_file(struct pvr_file *pvr_file); |
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| 69 | |
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| 70 | #endif /* PVR_VM_H */ |
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| 71 | |
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