1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright © 2022 Intel Corporation 4 */ 5 6 #ifndef _XE_GT_H_ 7 #define _XE_GT_H_ 8 9 #include <drm/drm_util.h> 10 11 #include "xe_device_types.h" 12 #include "xe_hw_engine.h" 13 14 #define for_each_hw_engine(hwe__, gt__, id__) \ 15 for ((id__) = 0; (id__) < ARRAY_SIZE((gt__)->hw_engines); (id__)++) \ 16 for_each_if(((hwe__) = (gt__)->hw_engines + (id__)) && \ 17 xe_hw_engine_is_valid((hwe__))) 18 19 #define CCS_MASK(gt) (((gt)->info.engine_mask & XE_HW_ENGINE_CCS_MASK) >> XE_HW_ENGINE_CCS0) 20 21 #ifdef CONFIG_FAULT_INJECTION 22 #include <linux/fault-inject.h> /* XXX: fault-inject.h is broken */ 23 extern struct fault_attr gt_reset_failure; 24 static inline bool xe_fault_inject_gt_reset(void) 25 { 26 return should_fail(>_reset_failure, 1); 27 } 28 #else 29 static inline bool xe_fault_inject_gt_reset(void) 30 { 31 return false; 32 } 33 #endif 34 35 struct xe_gt *xe_gt_alloc(struct xe_tile *tile); 36 int xe_gt_init_hwconfig(struct xe_gt *gt); 37 int xe_gt_init_early(struct xe_gt *gt); 38 int xe_gt_init(struct xe_gt *gt); 39 int xe_gt_record_default_lrcs(struct xe_gt *gt); 40 void xe_gt_suspend_prepare(struct xe_gt *gt); 41 int xe_gt_suspend(struct xe_gt *gt); 42 int xe_gt_resume(struct xe_gt *gt); 43 void xe_gt_reset_async(struct xe_gt *gt); 44 void xe_gt_sanitize(struct xe_gt *gt); 45 void xe_gt_remove(struct xe_gt *gt); 46 47 /** 48 * xe_gt_any_hw_engine_by_reset_domain - scan the list of engines and return the 49 * first that matches the same reset domain as @class 50 * @gt: GT structure 51 * @class: hw engine class to lookup 52 */ 53 struct xe_hw_engine * 54 xe_gt_any_hw_engine_by_reset_domain(struct xe_gt *gt, enum xe_engine_class class); 55 56 struct xe_hw_engine *xe_gt_hw_engine(struct xe_gt *gt, 57 enum xe_engine_class class, 58 u16 instance, 59 bool logical); 60 61 static inline bool xe_gt_is_media_type(struct xe_gt *gt) 62 { 63 return gt->info.type == XE_GT_TYPE_MEDIA; 64 } 65 66 static inline bool xe_gt_is_usm_hwe(struct xe_gt *gt, struct xe_hw_engine *hwe) 67 { 68 struct xe_device *xe = gt_to_xe(gt); 69 70 return xe->info.has_usm && hwe->class == XE_ENGINE_CLASS_COPY && 71 hwe->instance == gt->usm.reserved_bcs_instance; 72 } 73 74 #endif 75