diff options
Diffstat (limited to 'drivers/gpu/drm/imagination/pvr_vm.h')
-rw-r--r-- | drivers/gpu/drm/imagination/pvr_vm.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/gpu/drm/imagination/pvr_vm.h b/drivers/gpu/drm/imagination/pvr_vm.h new file mode 100644 index 0000000000..f2a6463f2b --- /dev/null +++ b/drivers/gpu/drm/imagination/pvr_vm.h @@ -0,0 +1,66 @@ +/* SPDX-License-Identifier: GPL-2.0-only OR MIT */ +/* Copyright (c) 2023 Imagination Technologies Ltd. */ + +#ifndef PVR_VM_H +#define PVR_VM_H + +#include "pvr_rogue_mmu_defs.h" + +#include <uapi/drm/pvr_drm.h> + +#include <linux/types.h> + +/* Forward declaration from "pvr_device.h" */ +struct pvr_device; +struct pvr_file; + +/* Forward declaration from "pvr_gem.h" */ +struct pvr_gem_object; + +/* Forward declaration from "pvr_vm.c" */ +struct pvr_vm_context; + +/* Forward declaration from <uapi/drm/pvr_drm.h> */ +struct drm_pvr_ioctl_get_heap_info_args; + +/* Forward declaration from <drm/drm_exec.h> */ +struct drm_exec; + +/* Functions defined in pvr_vm.c */ + +bool pvr_device_addr_is_valid(u64 device_addr); +bool pvr_device_addr_and_size_are_valid(struct pvr_vm_context *vm_ctx, + u64 device_addr, u64 size); + +struct pvr_vm_context *pvr_vm_create_context(struct pvr_device *pvr_dev, + bool is_userspace_context); + +int pvr_vm_map(struct pvr_vm_context *vm_ctx, + struct pvr_gem_object *pvr_obj, u64 pvr_obj_offset, + u64 device_addr, u64 size); +int pvr_vm_unmap(struct pvr_vm_context *vm_ctx, u64 device_addr, u64 size); + +dma_addr_t pvr_vm_get_page_table_root_addr(struct pvr_vm_context *vm_ctx); +struct dma_resv *pvr_vm_get_dma_resv(struct pvr_vm_context *vm_ctx); + +int pvr_static_data_areas_get(const struct pvr_device *pvr_dev, + struct drm_pvr_ioctl_dev_query_args *args); +int pvr_heap_info_get(const struct pvr_device *pvr_dev, + struct drm_pvr_ioctl_dev_query_args *args); +const struct drm_pvr_heap *pvr_find_heap_containing(struct pvr_device *pvr_dev, + u64 addr, u64 size); + +struct pvr_gem_object *pvr_vm_find_gem_object(struct pvr_vm_context *vm_ctx, + u64 device_addr, + u64 *mapped_offset_out, + u64 *mapped_size_out); + +struct pvr_fw_object * +pvr_vm_get_fw_mem_context(struct pvr_vm_context *vm_ctx); + +struct pvr_vm_context *pvr_vm_context_lookup(struct pvr_file *pvr_file, u32 handle); +struct pvr_vm_context *pvr_vm_context_get(struct pvr_vm_context *vm_ctx); +bool pvr_vm_context_put(struct pvr_vm_context *vm_ctx); +void pvr_destroy_vm_contexts_for_file(struct pvr_file *pvr_file); + +#endif /* PVR_VM_H */ |