| 1 | /* | 
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| 2 | * SPDX-License-Identifier: MIT | 
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| 3 | * | 
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| 4 | * Copyright © 2008-2018 Intel Corporation | 
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| 5 | */ | 
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| 6 |  | 
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| 7 | #ifndef _I915_GPU_ERROR_H_ | 
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| 8 | #define _I915_GPU_ERROR_H_ | 
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| 9 |  | 
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| 10 | #include <linux/atomic.h> | 
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| 11 | #include <linux/kref.h> | 
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| 12 | #include <linux/ktime.h> | 
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| 13 | #include <linux/sched.h> | 
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| 14 |  | 
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| 15 | #include <drm/drm_mm.h> | 
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| 16 |  | 
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| 17 | #include "gt/intel_engine.h" | 
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| 18 | #include "gt/intel_engine_types.h" | 
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| 19 | #include "gt/intel_gt_types.h" | 
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| 20 | #include "gt/uc/intel_uc_fw.h" | 
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| 21 |  | 
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| 22 | #include "intel_device_info.h" | 
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| 23 |  | 
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| 24 | #include "i915_gem.h" | 
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| 25 | #include "i915_gem_gtt.h" | 
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| 26 | #include "i915_params.h" | 
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| 27 | #include "i915_scheduler.h" | 
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| 28 |  | 
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| 29 | struct drm_i915_private; | 
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| 30 | struct i915_vma_compress; | 
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| 31 | struct intel_engine_capture_vma; | 
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| 32 | struct intel_display_snapshot; | 
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| 33 |  | 
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| 34 | struct i915_vma_coredump { | 
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| 35 | struct i915_vma_coredump *next; | 
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| 36 |  | 
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| 37 | char name[20]; | 
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| 38 |  | 
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| 39 | u64 gtt_offset; | 
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| 40 | u64 gtt_size; | 
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| 41 | u32 gtt_page_sizes; | 
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| 42 |  | 
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| 43 | int unused; | 
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| 44 | struct list_head page_list; | 
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| 45 | }; | 
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| 46 |  | 
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| 47 | struct i915_request_coredump { | 
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| 48 | unsigned long flags; | 
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| 49 | pid_t pid; | 
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| 50 | u32 context; | 
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| 51 | u32 seqno; | 
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| 52 | u32 head; | 
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| 53 | u32 tail; | 
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| 54 | struct i915_sched_attr sched_attr; | 
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| 55 | }; | 
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| 56 |  | 
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| 57 | struct __guc_capture_parsed_output; | 
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| 58 |  | 
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| 59 | struct intel_engine_coredump { | 
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| 60 | const struct intel_engine_cs *engine; | 
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| 61 |  | 
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| 62 | bool hung; | 
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| 63 | bool simulated; | 
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| 64 | u32 reset_count; | 
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| 65 |  | 
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| 66 | /* position of active request inside the ring */ | 
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| 67 | u32 rq_head, rq_post, rq_tail; | 
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| 68 |  | 
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| 69 | /* Register state */ | 
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| 70 | u32 ccid; | 
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| 71 | u32 start; | 
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| 72 | u32 tail; | 
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| 73 | u32 head; | 
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| 74 | u32 ctl; | 
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| 75 | u32 mode; | 
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| 76 | u32 hws; | 
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| 77 | u32 ipeir; | 
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| 78 | u32 ipehr; | 
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| 79 | u32 esr; | 
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| 80 | u32 bbstate; | 
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| 81 | u32 instpm; | 
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| 82 | u32 instps; | 
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| 83 | u64 bbaddr; | 
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| 84 | u64 acthd; | 
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| 85 | u32 fault_reg; | 
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| 86 | u64 faddr; | 
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| 87 | u32 rc_psmi; /* sleep state */ | 
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| 88 | u32 nopid; | 
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| 89 | u32 excc; | 
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| 90 | u32 cmd_cctl; | 
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| 91 | u32 cscmdop; | 
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| 92 | u32 ctx_sr_ctl; | 
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| 93 | u32 dma_faddr_hi; | 
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| 94 | u32 dma_faddr_lo; | 
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| 95 | struct intel_instdone instdone; | 
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| 96 |  | 
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| 97 | /* GuC matched capture-lists info */ | 
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| 98 | struct intel_guc_state_capture *guc_capture; | 
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| 99 | struct __guc_capture_parsed_output *guc_capture_node; | 
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| 100 |  | 
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| 101 | struct i915_gem_context_coredump { | 
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| 102 | char comm[TASK_COMM_LEN]; | 
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| 103 |  | 
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| 104 | u64 total_runtime; | 
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| 105 | u64 avg_runtime; | 
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| 106 |  | 
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| 107 | pid_t pid; | 
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| 108 | int active; | 
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| 109 | int guilty; | 
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| 110 | struct i915_sched_attr sched_attr; | 
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| 111 | u32 hwsp_seqno; | 
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| 112 | } context; | 
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| 113 |  | 
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| 114 | struct i915_vma_coredump *vma; | 
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| 115 |  | 
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| 116 | struct i915_request_coredump execlist[EXECLIST_MAX_PORTS]; | 
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| 117 | unsigned int num_ports; | 
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| 118 |  | 
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| 119 | struct { | 
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| 120 | u32 gfx_mode; | 
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| 121 | union { | 
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| 122 | u64 pdp[4]; | 
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| 123 | u32 pp_dir_base; | 
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| 124 | }; | 
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| 125 | } vm_info; | 
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| 126 |  | 
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| 127 | struct intel_engine_coredump *next; | 
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| 128 | }; | 
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| 129 |  | 
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| 130 | struct intel_ctb_coredump { | 
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| 131 | u32 raw_head, head; | 
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| 132 | u32 raw_tail, tail; | 
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| 133 | u32 raw_status; | 
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| 134 | u32 desc_offset; | 
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| 135 | u32 cmds_offset; | 
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| 136 | u32 size; | 
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| 137 | }; | 
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| 138 |  | 
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| 139 | struct intel_gt_coredump { | 
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| 140 | const struct intel_gt *_gt; | 
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| 141 | bool awake; | 
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| 142 | bool simulated; | 
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| 143 |  | 
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| 144 | struct intel_gt_info info; | 
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| 145 |  | 
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| 146 | /* Generic register state */ | 
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| 147 | u32 eir; | 
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| 148 | u32 pgtbl_er; | 
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| 149 | u32 gtier[6], ngtier; | 
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| 150 | u32 forcewake; | 
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| 151 | u32 error; /* gen6+ */ | 
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| 152 | u32 err_int; /* gen7 */ | 
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| 153 | u32 fault_data0; /* gen8, gen9 */ | 
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| 154 | u32 fault_data1; /* gen8, gen9 */ | 
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| 155 | u32 done_reg; | 
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| 156 | u32 gac_eco; | 
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| 157 | u32 gam_ecochk; | 
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| 158 | u32 gab_ctl; | 
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| 159 | u32 gfx_mode; | 
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| 160 | u32 gtt_cache; | 
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| 161 | u32 aux_err; /* gen12 */ | 
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| 162 | u32 gam_done; /* gen12 */ | 
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| 163 | u32 clock_frequency; | 
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| 164 | u32 clock_period_ns; | 
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| 165 |  | 
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| 166 | u32 sfc_done[I915_MAX_SFC]; /* gen12 */ | 
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| 167 |  | 
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| 168 | u32 nfence; | 
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| 169 | u64 fence[I915_MAX_NUM_FENCES]; | 
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| 170 |  | 
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| 171 | struct intel_engine_coredump *engine; | 
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| 172 |  | 
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| 173 | struct intel_uc_coredump { | 
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| 174 | struct intel_uc_fw guc_fw; | 
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| 175 | struct intel_uc_fw huc_fw; | 
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| 176 | struct guc_info { | 
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| 177 | struct intel_ctb_coredump ctb[2]; | 
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| 178 | struct i915_vma_coredump *vma_ctb; | 
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| 179 | struct i915_vma_coredump *vma_log; | 
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| 180 | u32 *hw_state; | 
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| 181 | u32 timestamp; | 
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| 182 | u16 last_fence; | 
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| 183 | bool is_guc_capture; | 
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| 184 | } guc; | 
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| 185 | } *uc; | 
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| 186 |  | 
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| 187 | struct intel_gt_coredump *next; | 
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| 188 | }; | 
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| 189 |  | 
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| 190 | struct i915_gpu_coredump { | 
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| 191 | struct kref ref; | 
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| 192 | ktime_t time; | 
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| 193 | ktime_t boottime; | 
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| 194 | ktime_t uptime; | 
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| 195 | unsigned long capture; | 
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| 196 |  | 
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| 197 | struct drm_i915_private *i915; | 
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| 198 |  | 
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| 199 | struct intel_gt_coredump *gt; | 
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| 200 |  | 
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| 201 | char error_msg[128]; | 
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| 202 | bool simulated; | 
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| 203 | bool wakelock; | 
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| 204 | bool suspended; | 
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| 205 | int iommu; | 
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| 206 | u32 reset_count; | 
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| 207 | u32 suspend_count; | 
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| 208 |  | 
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| 209 | struct intel_device_info device_info; | 
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| 210 | struct intel_runtime_info runtime_info; | 
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| 211 | struct intel_driver_caps driver_caps; | 
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| 212 | struct i915_params params; | 
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| 213 |  | 
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| 214 | struct scatterlist *sgl, *fit; | 
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| 215 |  | 
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| 216 | struct intel_display_snapshot *display_snapshot; | 
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| 217 | }; | 
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| 218 |  | 
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| 219 | struct i915_gpu_error { | 
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| 220 | /* For reset and error_state handling. */ | 
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| 221 | spinlock_t lock; | 
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| 222 | /* Protected by the above dev->gpu_error.lock. */ | 
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| 223 | struct i915_gpu_coredump *first_error; | 
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| 224 |  | 
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| 225 | /** Number of times the device has been reset (global) */ | 
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| 226 | atomic_t reset_count; | 
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| 227 |  | 
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| 228 | /** Number of times an engine has been reset */ | 
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| 229 | atomic_t reset_engine_count[MAX_ENGINE_CLASS]; | 
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| 230 | }; | 
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| 231 |  | 
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| 232 | struct drm_i915_error_state_buf { | 
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| 233 | struct drm_i915_private *i915; | 
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| 234 | struct scatterlist *sgl, *cur, *end; | 
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| 235 |  | 
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| 236 | char *buf; | 
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| 237 | size_t bytes; | 
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| 238 | size_t size; | 
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| 239 | loff_t iter; | 
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| 240 |  | 
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| 241 | int err; | 
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| 242 | }; | 
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| 243 |  | 
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| 244 | static inline u32 i915_reset_count(struct i915_gpu_error *error) | 
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| 245 | { | 
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| 246 | return atomic_read(v: &error->reset_count); | 
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| 247 | } | 
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| 248 |  | 
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| 249 | static inline u32 i915_reset_engine_count(struct i915_gpu_error *error, | 
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| 250 | const struct intel_engine_cs *engine) | 
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| 251 | { | 
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| 252 | return atomic_read(v: &error->reset_engine_count[engine->class]); | 
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| 253 | } | 
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| 254 |  | 
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| 255 | static inline void | 
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| 256 | i915_increase_reset_engine_count(struct i915_gpu_error *error, | 
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| 257 | const struct intel_engine_cs *engine) | 
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| 258 | { | 
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| 259 | atomic_inc(v: &error->reset_engine_count[engine->class]); | 
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| 260 | } | 
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| 261 |  | 
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| 262 | #define CORE_DUMP_FLAG_NONE           0x0 | 
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| 263 | #define CORE_DUMP_FLAG_IS_GUC_CAPTURE BIT(0) | 
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| 264 |  | 
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| 265 | #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR) && IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM) | 
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| 266 | void intel_klog_error_capture(struct intel_gt *gt, | 
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| 267 | intel_engine_mask_t engine_mask); | 
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| 268 | #else | 
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| 269 | static inline void intel_klog_error_capture(struct intel_gt *gt, | 
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| 270 | intel_engine_mask_t engine_mask) | 
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| 271 | { | 
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| 272 | } | 
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| 273 | #endif | 
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| 274 |  | 
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| 275 | #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR) | 
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| 276 |  | 
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| 277 | __printf(2, 3) | 
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| 278 | void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...); | 
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| 279 |  | 
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| 280 | void i915_capture_error_state(struct intel_gt *gt, | 
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| 281 | intel_engine_mask_t engine_mask, u32 dump_flags); | 
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| 282 |  | 
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| 283 | struct i915_gpu_coredump * | 
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| 284 | i915_gpu_coredump_alloc(struct drm_i915_private *i915, gfp_t gfp); | 
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| 285 |  | 
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| 286 | struct intel_gt_coredump * | 
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| 287 | intel_gt_coredump_alloc(struct intel_gt *gt, gfp_t gfp, u32 dump_flags); | 
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| 288 |  | 
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| 289 | struct intel_engine_coredump * | 
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| 290 | intel_engine_coredump_alloc(struct intel_engine_cs *engine, gfp_t gfp, u32 dump_flags); | 
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| 291 |  | 
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| 292 | struct intel_engine_capture_vma * | 
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| 293 | intel_engine_coredump_add_request(struct intel_engine_coredump *ee, | 
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| 294 | struct i915_request *rq, | 
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| 295 | gfp_t gfp); | 
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| 296 |  | 
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| 297 | void intel_engine_coredump_add_vma(struct intel_engine_coredump *ee, | 
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| 298 | struct intel_engine_capture_vma *capture, | 
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| 299 | struct i915_vma_compress *compress); | 
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| 300 |  | 
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| 301 | struct i915_vma_compress * | 
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| 302 | i915_vma_capture_prepare(struct intel_gt_coredump *gt); | 
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| 303 |  | 
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| 304 | void i915_vma_capture_finish(struct intel_gt_coredump *gt, | 
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| 305 | struct i915_vma_compress *compress); | 
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| 306 |  | 
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| 307 | void i915_error_state_store(struct i915_gpu_coredump *error); | 
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| 308 |  | 
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| 309 | static inline struct i915_gpu_coredump * | 
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| 310 | i915_gpu_coredump_get(struct i915_gpu_coredump *gpu) | 
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| 311 | { | 
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| 312 | kref_get(kref: &gpu->ref); | 
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| 313 | return gpu; | 
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| 314 | } | 
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| 315 |  | 
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| 316 | ssize_t | 
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| 317 | i915_gpu_coredump_copy_to_buffer(struct i915_gpu_coredump *error, | 
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| 318 | char *buf, loff_t offset, size_t count); | 
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| 319 |  | 
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| 320 | void __i915_gpu_coredump_free(struct kref *kref); | 
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| 321 | static inline void i915_gpu_coredump_put(struct i915_gpu_coredump *gpu) | 
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| 322 | { | 
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| 323 | if (gpu) | 
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| 324 | kref_put(kref: &gpu->ref, release: __i915_gpu_coredump_free); | 
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| 325 | } | 
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| 326 |  | 
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| 327 | void i915_reset_error_state(struct drm_i915_private *i915); | 
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| 328 | void i915_disable_error_state(struct drm_i915_private *i915, int err); | 
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| 329 |  | 
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| 330 | void i915_gpu_error_debugfs_register(struct drm_i915_private *i915); | 
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| 331 | void i915_gpu_error_sysfs_setup(struct drm_i915_private *i915); | 
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| 332 | void i915_gpu_error_sysfs_teardown(struct drm_i915_private *i915); | 
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| 333 |  | 
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| 334 | #else | 
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| 335 |  | 
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| 336 | __printf(2, 3) | 
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| 337 | static inline void | 
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| 338 | i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...) | 
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| 339 | { | 
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| 340 | } | 
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| 341 |  | 
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| 342 | static inline void | 
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| 343 | i915_capture_error_state(struct intel_gt *gt, intel_engine_mask_t engine_mask, u32 dump_flags) | 
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| 344 | { | 
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| 345 | } | 
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| 346 |  | 
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| 347 | static inline struct i915_gpu_coredump * | 
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| 348 | i915_gpu_coredump_alloc(struct drm_i915_private *i915, gfp_t gfp) | 
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| 349 | { | 
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| 350 | return NULL; | 
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| 351 | } | 
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| 352 |  | 
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| 353 | static inline struct intel_gt_coredump * | 
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| 354 | intel_gt_coredump_alloc(struct intel_gt *gt, gfp_t gfp, u32 dump_flags) | 
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| 355 | { | 
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| 356 | return NULL; | 
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| 357 | } | 
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| 358 |  | 
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| 359 | static inline struct intel_engine_coredump * | 
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| 360 | intel_engine_coredump_alloc(struct intel_engine_cs *engine, gfp_t gfp, u32 dump_flags) | 
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| 361 | { | 
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| 362 | return NULL; | 
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| 363 | } | 
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| 364 |  | 
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| 365 | static inline struct intel_engine_capture_vma * | 
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| 366 | intel_engine_coredump_add_request(struct intel_engine_coredump *ee, | 
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| 367 | struct i915_request *rq, | 
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| 368 | gfp_t gfp) | 
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| 369 | { | 
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| 370 | return NULL; | 
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| 371 | } | 
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| 372 |  | 
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| 373 | static inline void | 
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| 374 | intel_engine_coredump_add_vma(struct intel_engine_coredump *ee, | 
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| 375 | struct intel_engine_capture_vma *capture, | 
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| 376 | struct i915_vma_compress *compress) | 
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| 377 | { | 
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| 378 | } | 
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| 379 |  | 
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| 380 | static inline struct i915_vma_compress * | 
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| 381 | i915_vma_capture_prepare(struct intel_gt_coredump *gt) | 
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| 382 | { | 
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| 383 | return NULL; | 
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| 384 | } | 
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| 385 |  | 
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| 386 | static inline void | 
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| 387 | i915_vma_capture_finish(struct intel_gt_coredump *gt, | 
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| 388 | struct i915_vma_compress *compress) | 
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| 389 | { | 
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| 390 | } | 
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| 391 |  | 
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| 392 | static inline void | 
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| 393 | i915_error_state_store(struct i915_gpu_coredump *error) | 
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| 394 | { | 
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| 395 | } | 
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| 396 |  | 
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| 397 | static inline void i915_gpu_coredump_put(struct i915_gpu_coredump *gpu) | 
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| 398 | { | 
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| 399 | } | 
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| 400 |  | 
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| 401 | static inline void i915_reset_error_state(struct drm_i915_private *i915) | 
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| 402 | { | 
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| 403 | } | 
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| 404 |  | 
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| 405 | static inline void i915_disable_error_state(struct drm_i915_private *i915, | 
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| 406 | int err) | 
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| 407 | { | 
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| 408 | } | 
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| 409 |  | 
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| 410 | static inline void i915_gpu_error_debugfs_register(struct drm_i915_private *i915) | 
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| 411 | { | 
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| 412 | } | 
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| 413 |  | 
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| 414 | static inline void i915_gpu_error_sysfs_setup(struct drm_i915_private *i915) | 
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| 415 | { | 
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| 416 | } | 
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| 417 |  | 
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| 418 | static inline void i915_gpu_error_sysfs_teardown(struct drm_i915_private *i915) | 
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| 419 | { | 
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| 420 | } | 
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| 421 |  | 
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| 422 | #endif /* IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR) */ | 
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| 423 |  | 
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| 424 | #endif /* _I915_GPU_ERROR_H_ */ | 
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| 425 |  | 
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