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; 25 static 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_mmio_init(struct xe_gt *gt); 35 void xe_gt_declare_wedged(struct xe_gt *gt); 36 int xe_gt_record_default_lrcs(struct xe_gt *gt); 37 38 /** 39 * xe_gt_record_user_engines - save data related to engines available to 40 * usersapce 41 * @gt: GT structure 42 * 43 * Walk the available HW engines from gt->info.engine_mask and calculate data 44 * related to those engines that may be used by userspace. To be used whenever 45 * available engines change in runtime (e.g. with ccs_mode) or during 46 * initialization 47 */ 48 void xe_gt_record_user_engines(struct xe_gt *gt); 49 50 void xe_gt_suspend_prepare(struct xe_gt *gt); 51 int xe_gt_suspend(struct xe_gt *gt); 52 void xe_gt_shutdown(struct xe_gt *gt); 53 int xe_gt_resume(struct xe_gt *gt); 54 void xe_gt_reset_async(struct xe_gt *gt); 55 void xe_gt_sanitize(struct xe_gt *gt); 56 int xe_gt_sanitize_freq(struct xe_gt *gt); 57 void xe_gt_remove(struct xe_gt *gt); 58 59 /** 60 * xe_gt_wait_for_reset - wait for gt's async reset to finalize. 61 * @gt: GT structure 62 * Return: 63 * %true if it waited for the work to finish execution, 64 * %false if there was no scheduled reset or it was done. 65 */ 66 static inline bool xe_gt_wait_for_reset(struct xe_gt *gt) 67 { 68 return flush_work(>->reset.worker); 69 } 70 71 /** 72 * xe_gt_reset - perform synchronous reset 73 * @gt: GT structure 74 * Return: 75 * %true if it waited for the reset to finish, 76 * %false if there was no scheduled reset. 77 */ 78 static inline bool xe_gt_reset(struct xe_gt *gt) 79 { 80 xe_gt_reset_async(gt); 81 return xe_gt_wait_for_reset(gt); 82 } 83 84 /** 85 * xe_gt_any_hw_engine_by_reset_domain - scan the list of engines and return the 86 * first that matches the same reset domain as @class 87 * @gt: GT structure 88 * @class: hw engine class to lookup 89 */ 90 struct xe_hw_engine * 91 xe_gt_any_hw_engine_by_reset_domain(struct xe_gt *gt, enum xe_engine_class class); 92 93 /** 94 * xe_gt_any_hw_engine - scan the list of engines and return the 95 * first available 96 * @gt: GT structure 97 */ 98 struct xe_hw_engine *xe_gt_any_hw_engine(struct xe_gt *gt); 99 100 struct xe_hw_engine *xe_gt_hw_engine(struct xe_gt *gt, 101 enum xe_engine_class class, 102 u16 instance, 103 bool logical); 104 105 static inline bool xe_gt_has_indirect_ring_state(struct xe_gt *gt) 106 { 107 return gt->info.has_indirect_ring_state && 108 xe_device_uc_enabled(gt_to_xe(gt)); 109 } 110 111 static inline bool xe_gt_is_media_type(struct xe_gt *gt) 112 { 113 return gt->info.type == XE_GT_TYPE_MEDIA; 114 } 115 116 static inline bool xe_gt_is_usm_hwe(struct xe_gt *gt, struct xe_hw_engine *hwe) 117 { 118 struct xe_device *xe = gt_to_xe(gt); 119 120 return xe->info.has_usm && hwe->class == XE_ENGINE_CLASS_COPY && 121 hwe->instance == gt->usm.reserved_bcs_instance; 122 } 123 124 #endif 125