1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright © 2021 Intel Corporation 4 */ 5 #ifndef _XE_LRC_H_ 6 #define _XE_LRC_H_ 7 8 #include <linux/types.h> 9 10 #include "xe_lrc_types.h" 11 12 struct drm_printer; 13 struct xe_bb; 14 struct xe_device; 15 struct xe_exec_queue; 16 enum xe_multi_queue_priority; 17 enum xe_engine_class; 18 struct xe_gt; 19 struct xe_hw_engine; 20 struct xe_lrc; 21 struct xe_vm; 22 23 struct xe_lrc_snapshot { 24 struct xe_bo *lrc_bo; 25 void *lrc_snapshot; 26 unsigned long lrc_size, lrc_offset; 27 unsigned long replay_size, replay_offset; 28 29 u32 context_desc; 30 u32 ring_addr; 31 u32 indirect_context_desc; 32 u32 head; 33 u32 start; 34 struct { 35 u32 internal; 36 u32 memory; 37 } tail; 38 u32 start_seqno; 39 u32 seqno; 40 u64 ctx_timestamp; 41 u64 ctx_timestamp_ms; 42 u64 queue_timestamp; 43 u64 queue_timestamp_ms; 44 u32 ctx_job_timestamp; 45 }; 46 47 #define LRC_PPHWSP_FLUSH_INVAL_SCRATCH_ADDR (0x34 * 4) 48 #define LRC_PPHWSP_PXP_INVAL_SCRATCH_ADDR (0x40 * 4) 49 50 #define LRC_WA_BB_SIZE SZ_4K 51 52 #define XE_LRC_CREATE_RUNALONE BIT(0) 53 #define XE_LRC_CREATE_PXP BIT(1) 54 #define XE_LRC_CREATE_USER_CTX BIT(2) 55 #define XE_LRC_DISABLE_STATE_CACHE_PERF_FIX BIT(3) 56 57 struct xe_lrc *xe_lrc_create(struct xe_hw_engine *hwe, struct xe_vm *vm, 58 void *replay_state, u32 ring_size, u16 msix_vec, u32 flags); 59 void xe_lrc_destroy(struct kref *ref); 60 61 /** 62 * xe_lrc_get - Get reference to the LRC 63 * @lrc: Logical Ring Context 64 * 65 * Increment reference count of @lrc 66 */ 67 static inline struct xe_lrc *xe_lrc_get(struct xe_lrc *lrc) 68 { 69 kref_get(&lrc->refcount); 70 return lrc; 71 } 72 73 /** 74 * xe_lrc_put - Put reference of the LRC 75 * @lrc: Logical Ring Context 76 * 77 * Decrement reference count of @lrc, call xe_lrc_destroy when 78 * reference count reaches 0. 79 */ 80 static inline void xe_lrc_put(struct xe_lrc *lrc) 81 { 82 if (lrc) 83 kref_put(&lrc->refcount, xe_lrc_destroy); 84 } 85 86 /** 87 * xe_lrc_ring_size() - Xe LRC ring size 88 * 89 * Return: Size of LRC ring buffer 90 */ 91 static inline size_t xe_lrc_ring_size(void) 92 { 93 return SZ_16K; 94 } 95 96 static inline bool xe_lrc_is_multi_queue(struct xe_lrc *lrc) 97 { 98 return lrc->multi_queue.primary_lrc; 99 } 100 101 size_t xe_gt_lrc_hang_replay_size(struct xe_gt *gt, enum xe_engine_class class); 102 size_t xe_gt_lrc_size(struct xe_gt *gt, enum xe_engine_class class); 103 u32 xe_lrc_pphwsp_offset(struct xe_lrc *lrc); 104 u32 xe_lrc_regs_offset(struct xe_lrc *lrc); 105 106 void xe_lrc_set_ring_tail(struct xe_lrc *lrc, u32 tail); 107 u32 xe_lrc_ring_tail(struct xe_lrc *lrc); 108 void xe_lrc_set_ring_head(struct xe_lrc *lrc, u32 head); 109 u32 xe_lrc_ring_head(struct xe_lrc *lrc); 110 u32 xe_lrc_ring_space(struct xe_lrc *lrc); 111 void xe_lrc_write_ring(struct xe_lrc *lrc, const void *data, size_t size); 112 113 bool xe_lrc_ring_is_idle(struct xe_lrc *lrc); 114 115 u32 xe_lrc_indirect_ring_ggtt_addr(struct xe_lrc *lrc); 116 u32 xe_lrc_ggtt_addr(struct xe_lrc *lrc); 117 u32 *xe_lrc_regs(struct xe_lrc *lrc); 118 void xe_lrc_update_hwctx_regs_with_address(struct xe_lrc *lrc); 119 void xe_default_lrc_update_memirq_regs_with_address(struct xe_hw_engine *hwe); 120 void xe_lrc_update_memirq_regs_with_address(struct xe_lrc *lrc, struct xe_hw_engine *hwe, 121 u32 *regs); 122 123 u32 xe_lrc_read_ctx_reg(struct xe_lrc *lrc, int reg_nr); 124 void xe_lrc_write_ctx_reg(struct xe_lrc *lrc, int reg_nr, u32 val); 125 126 u64 xe_lrc_descriptor(struct xe_lrc *lrc); 127 128 u32 xe_lrc_seqno_ggtt_addr(struct xe_lrc *lrc); 129 struct dma_fence *xe_lrc_alloc_seqno_fence(void); 130 void xe_lrc_free_seqno_fence(struct dma_fence *fence); 131 void xe_lrc_init_seqno_fence(struct xe_lrc *lrc, struct dma_fence *fence); 132 s32 xe_lrc_seqno(struct xe_lrc *lrc); 133 134 u32 xe_lrc_start_seqno_ggtt_addr(struct xe_lrc *lrc); 135 s32 xe_lrc_start_seqno(struct xe_lrc *lrc); 136 137 u32 xe_lrc_parallel_ggtt_addr(struct xe_lrc *lrc); 138 struct iosys_map xe_lrc_parallel_map(struct xe_lrc *lrc); 139 140 size_t xe_lrc_reg_size(struct xe_device *xe); 141 size_t xe_lrc_engine_state_size(struct xe_gt *gt, enum xe_engine_class class); 142 143 void xe_lrc_dump_default(struct drm_printer *p, 144 struct xe_gt *gt, 145 enum xe_engine_class); 146 int xe_lrc_lookup_default_reg_value(struct xe_gt *gt, 147 enum xe_engine_class hwe_class, 148 u32 offset, 149 u32 *value); 150 151 u32 *xe_lrc_emit_hwe_state_instructions(struct xe_exec_queue *q, u32 *cs); 152 153 void xe_lrc_set_multi_queue_priority(struct xe_lrc *lrc, enum xe_multi_queue_priority priority); 154 155 struct xe_lrc_snapshot *xe_lrc_snapshot_capture(struct xe_lrc *lrc); 156 void xe_lrc_snapshot_capture_delayed(struct xe_lrc_snapshot *snapshot); 157 void xe_lrc_snapshot_print(struct xe_lrc_snapshot *snapshot, struct drm_printer *p); 158 void xe_lrc_snapshot_free(struct xe_lrc_snapshot *snapshot); 159 160 u32 xe_lrc_ctx_timestamp_ggtt_addr(struct xe_lrc *lrc); 161 u32 xe_lrc_ctx_timestamp_udw_ggtt_addr(struct xe_lrc *lrc); 162 u32 xe_lrc_ctx_job_timestamp_ggtt_addr(struct xe_lrc *lrc); 163 u32 xe_lrc_ctx_job_timestamp(struct xe_lrc *lrc); 164 int xe_lrc_setup_wa_bb_with_scratch(struct xe_lrc *lrc, struct xe_hw_engine *hwe, 165 u32 *scratch); 166 167 /** 168 * xe_lrc_update_timestamp - readout LRC timestamp and update cached value 169 * @lrc: logical ring context for this exec queue 170 * @old_ts: pointer where to save the previous timestamp 171 * 172 * Read the current timestamp for this LRC and update the cached value. The 173 * previous cached value is also returned in @old_ts so the caller can calculate 174 * the delta between 2 updates. Note that this is not intended to be called from 175 * any place, but just by the paths updating the drm client utilization. 176 * 177 * Returns the current LRC timestamp 178 */ 179 u64 xe_lrc_update_timestamp(struct xe_lrc *lrc, u64 *old_ts); 180 181 u64 xe_lrc_timestamp(struct xe_lrc *lrc); 182 183 #endif 184