diff options
Diffstat (limited to 'drivers/gpu/drm/xe/xe_vm.h')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_vm.h | 165 |
1 files changed, 148 insertions, 17 deletions
diff --git a/drivers/gpu/drm/xe/xe_vm.h b/drivers/gpu/drm/xe/xe_vm.h index c864dba35e1d..ef8a5019574e 100644 --- a/drivers/gpu/drm/xe/xe_vm.h +++ b/drivers/gpu/drm/xe/xe_vm.h @@ -17,14 +17,16 @@ struct drm_printer; struct drm_file; struct ttm_buffer_object; -struct ttm_validate_buffer; + +struct dma_fence; struct xe_exec_queue; struct xe_file; struct xe_sync_entry; +struct xe_svm_range; struct drm_exec; -struct xe_vm *xe_vm_create(struct xe_device *xe, u32 flags); +struct xe_vm *xe_vm_create(struct xe_device *xe, u32 flags, struct xe_file *xef); struct xe_vm *xe_vm_lookup(struct xe_file *xef, u32 id); int xe_vma_cmp_vma_cb(const void *key, const struct rb_node *node); @@ -64,6 +66,8 @@ static inline bool xe_vm_is_closed_or_banned(struct xe_vm *vm) struct xe_vma * xe_vm_find_overlapping_vma(struct xe_vm *vm, u64 start, u64 range); +bool xe_vma_has_default_mem_attrs(struct xe_vma *vma); + /** * xe_vm_has_scratch() - Whether the vm is configured for scratch PTEs * @vm: The vm @@ -151,6 +155,11 @@ static inline bool xe_vma_is_null(struct xe_vma *vma) return vma->gpuva.flags & DRM_GPUVA_SPARSE; } +static inline bool xe_vma_is_cpu_addr_mirror(struct xe_vma *vma) +{ + return vma->gpuva.flags & XE_VMA_SYSTEM_ALLOCATOR; +} + static inline bool xe_vma_has_no_bo(struct xe_vma *vma) { return !xe_vma_bo(vma); @@ -158,9 +167,18 @@ static inline bool xe_vma_has_no_bo(struct xe_vma *vma) static inline bool xe_vma_is_userptr(struct xe_vma *vma) { - return xe_vma_has_no_bo(vma) && !xe_vma_is_null(vma); + return xe_vma_has_no_bo(vma) && !xe_vma_is_null(vma) && + !xe_vma_is_cpu_addr_mirror(vma); } +struct xe_vma *xe_vm_find_vma_by_addr(struct xe_vm *vm, u64 page_addr); + +int xe_vma_need_vram_for_atomic(struct xe_device *xe, struct xe_vma *vma, bool is_atomic); + +int xe_vm_alloc_madvise_vma(struct xe_vm *vm, uint64_t addr, uint64_t size); + +int xe_vm_alloc_cpu_addr_mirror_vma(struct xe_vm *vm, uint64_t addr, uint64_t size); + /** * to_userptr_vma() - Return a pointer to an embedding userptr vma * @vma: Pointer to the embedded struct xe_vma @@ -181,7 +199,7 @@ int xe_vm_destroy_ioctl(struct drm_device *dev, void *data, struct drm_file *file); int xe_vm_bind_ioctl(struct drm_device *dev, void *data, struct drm_file *file); - +int xe_vm_query_vmas_attrs_ioctl(struct drm_device *dev, void *data, struct drm_file *file); void xe_vm_close_and_put(struct xe_vm *vm); static inline bool xe_vm_in_fault_mode(struct xe_vm *vm) @@ -202,18 +220,23 @@ static inline bool xe_vm_in_preempt_fence_mode(struct xe_vm *vm) int xe_vm_add_compute_exec_queue(struct xe_vm *vm, struct xe_exec_queue *q); void xe_vm_remove_compute_exec_queue(struct xe_vm *vm, struct xe_exec_queue *q); -int xe_vm_userptr_pin(struct xe_vm *vm); - -int __xe_vm_userptr_needs_repin(struct xe_vm *vm); - -int xe_vm_userptr_check_repin(struct xe_vm *vm); - int xe_vm_rebind(struct xe_vm *vm, bool rebind_worker); struct dma_fence *xe_vma_rebind(struct xe_vm *vm, struct xe_vma *vma, u8 tile_mask); +struct dma_fence *xe_vm_range_rebind(struct xe_vm *vm, + struct xe_vma *vma, + struct xe_svm_range *range, + u8 tile_mask); +struct dma_fence *xe_vm_range_unbind(struct xe_vm *vm, + struct xe_svm_range *range); + +int xe_vm_range_tilemask_tlb_inval(struct xe_vm *vm, u64 start, + u64 end, u8 tile_mask); int xe_vm_invalidate_vma(struct xe_vma *vma); +int xe_vm_validate_protected(struct xe_vm *vm); + static inline void xe_vm_queue_rebind_worker(struct xe_vm *vm) { xe_assert(vm->xe, xe_vm_in_preempt_fence_mode(vm)); @@ -237,17 +260,17 @@ static inline void xe_vm_reactivate_rebind(struct xe_vm *vm) } } -int xe_vma_userptr_pin_pages(struct xe_userptr_vma *uvma); - -int xe_vma_userptr_check_repin(struct xe_userptr_vma *uvma); - -bool xe_vm_validate_should_retry(struct drm_exec *exec, int err, ktime_t *end); - int xe_vm_lock_vma(struct drm_exec *exec, struct xe_vma *vma); int xe_vm_validate_rebind(struct xe_vm *vm, struct drm_exec *exec, unsigned int num_fences); +struct dma_fence *xe_vm_bind_kernel_bo(struct xe_vm *vm, struct xe_bo *bo, + struct xe_exec_queue *q, u64 addr, + enum xe_cache_level cache_lvl); + +void xe_vm_resume_rebind_worker(struct xe_vm *vm); + /** * xe_vm_resv() - Return's the vm's reservation object * @vm: The vm @@ -267,6 +290,8 @@ void xe_vm_kill(struct xe_vm *vm, bool unlocked); */ #define xe_vm_assert_held(vm) dma_resv_assert_held(xe_vm_resv(vm)) +int xe_vm_drm_exec_lock(struct xe_vm *vm, struct drm_exec *exec); + #if IS_ENABLED(CONFIG_DRM_XE_DEBUG_VM) #define vm_dbg drm_dbg #else @@ -275,9 +300,115 @@ static inline void vm_dbg(const struct drm_device *dev, const char *format, ...) { /* noop */ } #endif -#endif struct xe_vm_snapshot *xe_vm_snapshot_capture(struct xe_vm *vm); void xe_vm_snapshot_capture_delayed(struct xe_vm_snapshot *snap); void xe_vm_snapshot_print(struct xe_vm_snapshot *snap, struct drm_printer *p); void xe_vm_snapshot_free(struct xe_vm_snapshot *snap); + +/** + * xe_vm_set_validating() - Register this task as currently making bos resident + * @allow_res_evict: Allow eviction of buffer objects bound to @vm when + * validating. + * @vm: Pointer to the vm or NULL. + * + * Register this task as currently making bos resident for the vm. Intended + * to avoid eviction by the same task of shared bos bound to the vm. + * Call with the vm's resv lock held. + */ +static inline void xe_vm_set_validating(struct xe_vm *vm, bool allow_res_evict) +{ + if (vm && !allow_res_evict) { + xe_vm_assert_held(vm); + /* Pairs with READ_ONCE in xe_vm_is_validating() */ + WRITE_ONCE(vm->validation.validating, current); + } +} + +/** + * xe_vm_clear_validating() - Unregister this task as currently making bos resident + * @vm: Pointer to the vm or NULL + * @allow_res_evict: Eviction from @vm was allowed. Must be set to the same + * value as for xe_vm_set_validation(). + * + * Register this task as currently making bos resident for the vm. Intended + * to avoid eviction by the same task of shared bos bound to the vm. + * Call with the vm's resv lock held. + */ +static inline void xe_vm_clear_validating(struct xe_vm *vm, bool allow_res_evict) +{ + if (vm && !allow_res_evict) { + /* Pairs with READ_ONCE in xe_vm_is_validating() */ + WRITE_ONCE(vm->validation.validating, NULL); + } +} + +/** + * xe_vm_is_validating() - Whether bos bound to the vm are currently being made resident + * by the current task. + * @vm: Pointer to the vm. + * + * If this function returns %true, we should be in a vm resv locked region, since + * the current process is the same task that called xe_vm_set_validating(). + * The function asserts that that's indeed the case. + * + * Return: %true if the task is currently making bos resident, %false otherwise. + */ +static inline bool xe_vm_is_validating(struct xe_vm *vm) +{ + /* Pairs with WRITE_ONCE in xe_vm_is_validating() */ + if (READ_ONCE(vm->validation.validating) == current) { + xe_vm_assert_held(vm); + return true; + } + return false; +} + +/** + * xe_vm_set_validation_exec() - Accessor to set the drm_exec object + * @vm: The vm we want to register a drm_exec object with. + * @exec: The exec object we want to register. + * + * Set the drm_exec object used to lock the vm's resv. + */ +static inline void xe_vm_set_validation_exec(struct xe_vm *vm, struct drm_exec *exec) +{ + xe_vm_assert_held(vm); + xe_assert(vm->xe, !!exec ^ !!vm->validation._exec); + vm->validation._exec = exec; +} + +/** + * xe_vm_set_validation_exec() - Accessor to read the drm_exec object + * @vm: The vm we want to register a drm_exec object with. + * + * Return: The drm_exec object used to lock the vm's resv. The value + * is a valid pointer, %NULL, or one of the special values defined in + * xe_validation.h. + */ +static inline struct drm_exec *xe_vm_validation_exec(struct xe_vm *vm) +{ + xe_vm_assert_held(vm); + return vm->validation._exec; +} + +/** + * xe_vm_has_valid_gpu_mapping() - Advisory helper to check if VMA or SVM range has + * a valid GPU mapping + * @tile: The tile which the GPU mapping belongs to + * @tile_present: Tile present mask + * @tile_invalidated: Tile invalidated mask + * + * The READ_ONCEs pair with WRITE_ONCEs in either the TLB invalidation paths + * (xe_vm.c, xe_svm.c) or the binding paths (xe_pt.c). These are not reliable + * without the notifier lock in userptr or SVM cases, and not reliable without + * the BO dma-resv lock in the BO case. As such, they should only be used in + * opportunistic cases (e.g., skipping a page fault fix or not skipping a TLB + * invalidation) where it is harmless. + * + * Return: True is there are valid GPU pages, False otherwise + */ +#define xe_vm_has_valid_gpu_mapping(tile, tile_present, tile_invalidated) \ + ((READ_ONCE(tile_present) & ~READ_ONCE(tile_invalidated)) & BIT((tile)->id)) + +#endif |