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 <linux/fault-inject.h> 10 11 #include <drm/drm_util.h> 12 13 #include "xe_device.h" 14 #include "xe_device_types.h" 15 #include "xe_hw_engine.h" 16 17 #define for_each_hw_engine(hwe__, gt__, id__) \ 18 for ((id__) = 0; (id__) < ARRAY_SIZE((gt__)->hw_engines); (id__)++) \ 19 for_each_if(((hwe__) = (gt__)->hw_engines + (id__)) && \ 20 xe_hw_engine_is_valid((hwe__))) 21 22 #define CCS_MASK(gt) (((gt)->info.engine_mask & XE_HW_ENGINE_CCS_MASK) >> XE_HW_ENGINE_CCS0) 23 24 extern struct fault_attr gt_reset_failure; xe_fault_inject_gt_reset(void)25static inline bool xe_fault_inject_gt_reset(void) 26 { 27 return should_fail(>_reset_failure, 1); 28 } 29 30 struct xe_gt *xe_gt_alloc(struct xe_tile *tile); 31 int xe_gt_init_hwconfig(struct xe_gt *gt); 32 int xe_gt_init_early(struct xe_gt *gt); 33 int xe_gt_init(struct xe_gt *gt); 34 void xe_gt_declare_wedged(struct xe_gt *gt); 35 int xe_gt_record_default_lrcs(struct xe_gt *gt); 36 37 /** 38 * xe_gt_record_user_engines - save data related to engines available to 39 * usersapce 40 * @gt: GT structure 41 * 42 * Walk the available HW engines from gt->info.engine_mask and calculate data 43 * related to those engines that may be used by userspace. To be used whenever 44 * available engines change in runtime (e.g. with ccs_mode) or during 45 * initialization 46 */ 47 void xe_gt_record_user_engines(struct xe_gt *gt); 48 49 void xe_gt_suspend_prepare(struct xe_gt *gt); 50 int xe_gt_suspend(struct xe_gt *gt); 51 int xe_gt_resume(struct xe_gt *gt); 52 void xe_gt_reset_async(struct xe_gt *gt); 53 void xe_gt_sanitize(struct xe_gt *gt); 54 int xe_gt_sanitize_freq(struct xe_gt *gt); 55 void xe_gt_remove(struct xe_gt *gt); 56 57 /** 58 * xe_gt_any_hw_engine_by_reset_domain - scan the list of engines and return the 59 * first that matches the same reset domain as @class 60 * @gt: GT structure 61 * @class: hw engine class to lookup 62 */ 63 struct xe_hw_engine * 64 xe_gt_any_hw_engine_by_reset_domain(struct xe_gt *gt, enum xe_engine_class class); 65 66 /** 67 * xe_gt_any_hw_engine - scan the list of engines and return the 68 * first available 69 * @gt: GT structure 70 */ 71 struct xe_hw_engine *xe_gt_any_hw_engine(struct xe_gt *gt); 72 73 struct xe_hw_engine *xe_gt_hw_engine(struct xe_gt *gt, 74 enum xe_engine_class class, 75 u16 instance, 76 bool logical); 77 xe_gt_has_indirect_ring_state(struct xe_gt * gt)78static inline bool xe_gt_has_indirect_ring_state(struct xe_gt *gt) 79 { 80 return gt->info.has_indirect_ring_state && 81 xe_device_uc_enabled(gt_to_xe(gt)); 82 } 83 xe_gt_is_media_type(struct xe_gt * gt)84static inline bool xe_gt_is_media_type(struct xe_gt *gt) 85 { 86 return gt->info.type == XE_GT_TYPE_MEDIA; 87 } 88 xe_gt_is_usm_hwe(struct xe_gt * gt,struct xe_hw_engine * hwe)89static inline bool xe_gt_is_usm_hwe(struct xe_gt *gt, struct xe_hw_engine *hwe) 90 { 91 struct xe_device *xe = gt_to_xe(gt); 92 93 return xe->info.has_usm && hwe->class == XE_ENGINE_CLASS_COPY && 94 hwe->instance == gt->usm.reserved_bcs_instance; 95 } 96 97 #endif 98