diff options
Diffstat (limited to 'drivers/gpu/drm/panthor/panthor_mmu.h')
| -rw-r--r-- | drivers/gpu/drm/panthor/panthor_mmu.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panthor/panthor_mmu.h b/drivers/gpu/drm/panthor/panthor_mmu.h new file mode 100644 index 000000000000..f3c1ed19f973 --- /dev/null +++ b/drivers/gpu/drm/panthor/panthor_mmu.h @@ -0,0 +1,102 @@ +/* SPDX-License-Identifier: GPL-2.0 or MIT */ +/* Copyright 2019 Linaro, Ltd, Rob Herring <robh@kernel.org> */ +/* Copyright 2023 Collabora ltd. */ + +#ifndef __PANTHOR_MMU_H__ +#define __PANTHOR_MMU_H__ + +#include <linux/dma-resv.h> + +struct drm_exec; +struct drm_sched_job; +struct panthor_gem_object; +struct panthor_heap_pool; +struct panthor_vm; +struct panthor_vma; +struct panthor_mmu; + +int panthor_mmu_init(struct panthor_device *ptdev); +void panthor_mmu_unplug(struct panthor_device *ptdev); +void panthor_mmu_pre_reset(struct panthor_device *ptdev); +void panthor_mmu_post_reset(struct panthor_device *ptdev); +void panthor_mmu_suspend(struct panthor_device *ptdev); +void panthor_mmu_resume(struct panthor_device *ptdev); + +int panthor_vm_map_bo_range(struct panthor_vm *vm, struct panthor_gem_object *bo, + u64 offset, u64 size, u64 va, u32 flags); +int panthor_vm_unmap_range(struct panthor_vm *vm, u64 va, u64 size); +struct panthor_gem_object * +panthor_vm_get_bo_for_va(struct panthor_vm *vm, u64 va, u64 *bo_offset); + +int panthor_vm_active(struct panthor_vm *vm); +void panthor_vm_idle(struct panthor_vm *vm); +int panthor_vm_as(struct panthor_vm *vm); + +struct panthor_heap_pool * +panthor_vm_get_heap_pool(struct panthor_vm *vm, bool create); + +struct panthor_vm *panthor_vm_get(struct panthor_vm *vm); +void panthor_vm_put(struct panthor_vm *vm); +struct panthor_vm *panthor_vm_create(struct panthor_device *ptdev, bool for_mcu, + u64 kernel_va_start, u64 kernel_va_size, + u64 kernel_auto_va_start, + u64 kernel_auto_va_size); + +int panthor_vm_prepare_mapped_bos_resvs(struct drm_exec *exec, + struct panthor_vm *vm, + u32 slot_count); +int panthor_vm_add_bos_resvs_deps_to_job(struct panthor_vm *vm, + struct drm_sched_job *job); +void panthor_vm_add_job_fence_to_bos_resvs(struct panthor_vm *vm, + struct drm_sched_job *job); + +struct dma_resv *panthor_vm_resv(struct panthor_vm *vm); +struct drm_gem_object *panthor_vm_root_gem(struct panthor_vm *vm); + +void panthor_vm_pool_destroy(struct panthor_file *pfile); +int panthor_vm_pool_create(struct panthor_file *pfile); +int panthor_vm_pool_create_vm(struct panthor_device *ptdev, + struct panthor_vm_pool *pool, + struct drm_panthor_vm_create *args); +int panthor_vm_pool_destroy_vm(struct panthor_vm_pool *pool, u32 handle); +struct panthor_vm *panthor_vm_pool_get_vm(struct panthor_vm_pool *pool, u32 handle); + +bool panthor_vm_has_unhandled_faults(struct panthor_vm *vm); +bool panthor_vm_is_unusable(struct panthor_vm *vm); + +/* + * PANTHOR_VM_KERNEL_AUTO_VA: Use this magic address when you want the GEM + * logic to auto-allocate the virtual address in the reserved kernel VA range. + */ +#define PANTHOR_VM_KERNEL_AUTO_VA ~0ull + +int panthor_vm_alloc_va(struct panthor_vm *vm, u64 va, u64 size, + struct drm_mm_node *va_node); +void panthor_vm_free_va(struct panthor_vm *vm, struct drm_mm_node *va_node); + +int panthor_vm_bind_exec_sync_op(struct drm_file *file, + struct panthor_vm *vm, + struct drm_panthor_vm_bind_op *op); + +struct drm_sched_job * +panthor_vm_bind_job_create(struct drm_file *file, + struct panthor_vm *vm, + const struct drm_panthor_vm_bind_op *op); +void panthor_vm_bind_job_put(struct drm_sched_job *job); +int panthor_vm_bind_job_prepare_resvs(struct drm_exec *exec, + struct drm_sched_job *job); +void panthor_vm_bind_job_update_resvs(struct drm_exec *exec, struct drm_sched_job *job); + +void panthor_vm_update_resvs(struct panthor_vm *vm, struct drm_exec *exec, + struct dma_fence *fence, + enum dma_resv_usage private_usage, + enum dma_resv_usage extobj_usage); + +int panthor_mmu_pt_cache_init(void); +void panthor_mmu_pt_cache_fini(void); + +#ifdef CONFIG_DEBUG_FS +void panthor_mmu_debugfs_init(struct drm_minor *minor); +#endif + +#endif |