1 /* SPDX-License-Identifier: GPL-2.0 or MIT */ 2 /* Copyright 2019 Linaro, Ltd, Rob Herring <[email protected]> */ 3 /* Copyright 2023 Collabora ltd. */ 4 5 #ifndef __PANTHOR_MMU_H__ 6 #define __PANTHOR_MMU_H__ 7 8 #include <linux/dma-resv.h> 9 10 struct drm_exec; 11 struct drm_sched_job; 12 struct drm_memory_stats; 13 struct panthor_gem_object; 14 struct panthor_heap_pool; 15 struct panthor_vm; 16 struct panthor_vma; 17 struct panthor_mmu; 18 19 int panthor_mmu_init(struct panthor_device *ptdev); 20 void panthor_mmu_unplug(struct panthor_device *ptdev); 21 void panthor_mmu_pre_reset(struct panthor_device *ptdev); 22 void panthor_mmu_post_reset(struct panthor_device *ptdev); 23 void panthor_mmu_suspend(struct panthor_device *ptdev); 24 void panthor_mmu_resume(struct panthor_device *ptdev); 25 26 int panthor_vm_map_bo_range(struct panthor_vm *vm, struct panthor_gem_object *bo, 27 u64 offset, u64 size, u64 va, u32 flags); 28 int panthor_vm_unmap_range(struct panthor_vm *vm, u64 va, u64 size); 29 struct panthor_gem_object * 30 panthor_vm_get_bo_for_va(struct panthor_vm *vm, u64 va, u64 *bo_offset); 31 32 int panthor_vm_active(struct panthor_vm *vm); 33 void panthor_vm_idle(struct panthor_vm *vm); 34 u32 panthor_vm_page_size(struct panthor_vm *vm); 35 int panthor_vm_as(struct panthor_vm *vm); 36 int panthor_vm_flush_all(struct panthor_vm *vm); 37 38 struct panthor_heap_pool * 39 panthor_vm_get_heap_pool(struct panthor_vm *vm, bool create); 40 41 void panthor_vm_heaps_sizes(struct panthor_file *pfile, struct drm_memory_stats *stats); 42 43 struct panthor_vm *panthor_vm_get(struct panthor_vm *vm); 44 void panthor_vm_put(struct panthor_vm *vm); 45 struct panthor_vm *panthor_vm_create(struct panthor_device *ptdev, bool for_mcu, 46 u64 kernel_va_start, u64 kernel_va_size, 47 u64 kernel_auto_va_start, 48 u64 kernel_auto_va_size); 49 50 int panthor_vm_prepare_mapped_bos_resvs(struct drm_exec *exec, 51 struct panthor_vm *vm, 52 u32 slot_count); 53 int panthor_vm_add_bos_resvs_deps_to_job(struct panthor_vm *vm, 54 struct drm_sched_job *job); 55 void panthor_vm_add_job_fence_to_bos_resvs(struct panthor_vm *vm, 56 struct drm_sched_job *job); 57 58 struct dma_resv *panthor_vm_resv(struct panthor_vm *vm); 59 struct drm_gem_object *panthor_vm_root_gem(struct panthor_vm *vm); 60 61 void panthor_vm_pool_destroy(struct panthor_file *pfile); 62 int panthor_vm_pool_create(struct panthor_file *pfile); 63 int panthor_vm_pool_create_vm(struct panthor_device *ptdev, 64 struct panthor_vm_pool *pool, 65 struct drm_panthor_vm_create *args); 66 int panthor_vm_pool_destroy_vm(struct panthor_vm_pool *pool, u32 handle); 67 struct panthor_vm *panthor_vm_pool_get_vm(struct panthor_vm_pool *pool, u32 handle); 68 69 bool panthor_vm_has_unhandled_faults(struct panthor_vm *vm); 70 bool panthor_vm_is_unusable(struct panthor_vm *vm); 71 72 /* 73 * PANTHOR_VM_KERNEL_AUTO_VA: Use this magic address when you want the GEM 74 * logic to auto-allocate the virtual address in the reserved kernel VA range. 75 */ 76 #define PANTHOR_VM_KERNEL_AUTO_VA ~0ull 77 78 int panthor_vm_alloc_va(struct panthor_vm *vm, u64 va, u64 size, 79 struct drm_mm_node *va_node); 80 void panthor_vm_free_va(struct panthor_vm *vm, struct drm_mm_node *va_node); 81 82 int panthor_vm_bind_exec_sync_op(struct drm_file *file, 83 struct panthor_vm *vm, 84 struct drm_panthor_vm_bind_op *op); 85 86 struct drm_sched_job * 87 panthor_vm_bind_job_create(struct drm_file *file, 88 struct panthor_vm *vm, 89 const struct drm_panthor_vm_bind_op *op); 90 void panthor_vm_bind_job_put(struct drm_sched_job *job); 91 int panthor_vm_bind_job_prepare_resvs(struct drm_exec *exec, 92 struct drm_sched_job *job); 93 void panthor_vm_bind_job_update_resvs(struct drm_exec *exec, struct drm_sched_job *job); 94 95 void panthor_vm_update_resvs(struct panthor_vm *vm, struct drm_exec *exec, 96 struct dma_fence *fence, 97 enum dma_resv_usage private_usage, 98 enum dma_resv_usage extobj_usage); 99 100 int panthor_mmu_pt_cache_init(void); 101 void panthor_mmu_pt_cache_fini(void); 102 103 #ifdef CONFIG_DEBUG_FS 104 void panthor_mmu_debugfs_init(struct drm_minor *minor); 105 #endif 106 107 #endif 108