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