| 1 | /* | 
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| 2 | * Copyright © 2008 Intel Corporation | 
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| 3 | * | 
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a | 
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| 5 | * copy of this software and associated documentation files (the "Software"), | 
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| 6 | * to deal in the Software without restriction, including without limitation | 
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| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | 
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| 8 | * and/or sell copies of the Software, and to permit persons to whom the | 
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| 9 | * Software is furnished to do so, subject to the following conditions: | 
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| 10 | * | 
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| 11 | * The above copyright notice and this permission notice (including the next | 
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| 12 | * paragraph) shall be included in all copies or substantial portions of the | 
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| 13 | * Software. | 
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| 14 | * | 
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | 
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| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | 
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| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL | 
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| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | 
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| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | 
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| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | 
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| 21 | * IN THE SOFTWARE. | 
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| 22 | * | 
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| 23 | * Authors: | 
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| 24 | *    Eric Anholt <eric@anholt.net> | 
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| 25 | *    Keith Packard <keithp@keithp.com> | 
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| 26 | * | 
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| 27 | */ | 
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| 28 |  | 
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| 29 | #include <linux/debugfs.h> | 
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| 30 | #include <linux/sched/mm.h> | 
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| 31 | #include <linux/sort.h> | 
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| 32 | #include <linux/string_helpers.h> | 
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| 33 |  | 
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| 34 | #include <drm/drm_debugfs.h> | 
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| 35 |  | 
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| 36 | #include "gem/i915_gem_context.h" | 
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| 37 | #include "gt/intel_gt.h" | 
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| 38 | #include "gt/intel_gt_buffer_pool.h" | 
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| 39 | #include "gt/intel_gt_clock_utils.h" | 
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| 40 | #include "gt/intel_gt_debugfs.h" | 
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| 41 | #include "gt/intel_gt_pm.h" | 
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| 42 | #include "gt/intel_gt_pm_debugfs.h" | 
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| 43 | #include "gt/intel_gt_regs.h" | 
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| 44 | #include "gt/intel_gt_requests.h" | 
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| 45 | #include "gt/intel_rc6.h" | 
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| 46 | #include "gt/intel_reset.h" | 
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| 47 | #include "gt/intel_rps.h" | 
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| 48 | #include "gt/intel_sseu_debugfs.h" | 
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| 49 |  | 
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| 50 | #include "i915_debugfs.h" | 
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| 51 | #include "i915_debugfs_params.h" | 
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| 52 | #include "i915_driver.h" | 
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| 53 | #include "i915_gpu_error.h" | 
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| 54 | #include "i915_irq.h" | 
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| 55 | #include "i915_reg.h" | 
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| 56 | #include "i915_scheduler.h" | 
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| 57 | #include "i915_wait_util.h" | 
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| 58 | #include "intel_mchbar_regs.h" | 
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| 59 |  | 
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| 60 | static inline struct drm_i915_private *node_to_i915(struct drm_info_node *node) | 
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| 61 | { | 
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| 62 | return to_i915(dev: node->minor->dev); | 
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| 63 | } | 
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| 64 |  | 
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| 65 | static int i915_capabilities(struct seq_file *m, void *data) | 
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| 66 | { | 
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| 67 | struct drm_i915_private *i915 = node_to_i915(node: m->private); | 
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| 68 | struct drm_printer p = drm_seq_file_printer(f: m); | 
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| 69 |  | 
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| 70 | intel_device_info_print(INTEL_INFO(i915), RUNTIME_INFO(i915), p: &p); | 
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| 71 | i915_print_iommu_status(i915, p: &p); | 
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| 72 | intel_gt_info_print(info: &to_gt(i915)->info, p: &p); | 
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| 73 | intel_driver_caps_print(caps: &i915->caps, p: &p); | 
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| 74 |  | 
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| 75 | i915_params_dump(params: &i915->params, p: &p); | 
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| 76 |  | 
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| 77 | return 0; | 
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| 78 | } | 
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| 79 |  | 
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| 80 | static char get_tiling_flag(struct drm_i915_gem_object *obj) | 
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| 81 | { | 
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| 82 | switch (i915_gem_object_get_tiling(obj)) { | 
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| 83 | default: | 
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| 84 | case I915_TILING_NONE: return ' '; | 
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| 85 | case I915_TILING_X: return 'X'; | 
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| 86 | case I915_TILING_Y: return 'Y'; | 
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| 87 | } | 
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| 88 | } | 
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| 89 |  | 
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| 90 | static char get_global_flag(struct drm_i915_gem_object *obj) | 
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| 91 | { | 
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| 92 | return READ_ONCE(obj->userfault_count) ? 'g' : ' '; | 
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| 93 | } | 
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| 94 |  | 
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| 95 | static char get_pin_mapped_flag(struct drm_i915_gem_object *obj) | 
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| 96 | { | 
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| 97 | return obj->mm.mapping ? 'M' : ' '; | 
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| 98 | } | 
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| 99 |  | 
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| 100 | static const char * | 
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| 101 | stringify_page_sizes(unsigned int page_sizes, char *buf, size_t len) | 
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| 102 | { | 
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| 103 | size_t x = 0; | 
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| 104 |  | 
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| 105 | switch (page_sizes) { | 
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| 106 | case 0: | 
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| 107 | return ""; | 
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| 108 | case I915_GTT_PAGE_SIZE_4K: | 
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| 109 | return "4K"; | 
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| 110 | case I915_GTT_PAGE_SIZE_64K: | 
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| 111 | return "64K"; | 
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| 112 | case I915_GTT_PAGE_SIZE_2M: | 
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| 113 | return "2M"; | 
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| 114 | default: | 
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| 115 | if (!buf) | 
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| 116 | return "M"; | 
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| 117 |  | 
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| 118 | if (page_sizes & I915_GTT_PAGE_SIZE_2M) | 
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| 119 | x += snprintf(buf: buf + x, size: len - x, fmt: "2M, "); | 
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| 120 | if (page_sizes & I915_GTT_PAGE_SIZE_64K) | 
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| 121 | x += snprintf(buf: buf + x, size: len - x, fmt: "64K, "); | 
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| 122 | if (page_sizes & I915_GTT_PAGE_SIZE_4K) | 
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| 123 | x += snprintf(buf: buf + x, size: len - x, fmt: "4K, "); | 
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| 124 | buf[x-2] = '\0'; | 
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| 125 |  | 
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| 126 | return buf; | 
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| 127 | } | 
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| 128 | } | 
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| 129 |  | 
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| 130 | static const char *stringify_vma_type(const struct i915_vma *vma) | 
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| 131 | { | 
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| 132 | if (i915_vma_is_ggtt(vma)) | 
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| 133 | return "ggtt"; | 
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| 134 |  | 
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| 135 | if (i915_vma_is_dpt(vma)) | 
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| 136 | return "dpt"; | 
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| 137 |  | 
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| 138 | return "ppgtt"; | 
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| 139 | } | 
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| 140 |  | 
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| 141 | static const char *i915_cache_level_str(struct drm_i915_gem_object *obj) | 
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| 142 | { | 
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| 143 | struct drm_i915_private *i915 = obj_to_i915(obj); | 
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| 144 |  | 
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| 145 | if (IS_GFX_GT_IP_RANGE(to_gt(i915), IP_VER(12, 70), IP_VER(12, 74))) { | 
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| 146 | switch (obj->pat_index) { | 
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| 147 | case 0: return " WB"; | 
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| 148 | case 1: return " WT"; | 
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| 149 | case 2: return " UC"; | 
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| 150 | case 3: return " WB (1-Way Coh)"; | 
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| 151 | case 4: return " WB (2-Way Coh)"; | 
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| 152 | default: return " not defined"; | 
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| 153 | } | 
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| 154 | } else if (GRAPHICS_VER(i915) >= 12) { | 
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| 155 | switch (obj->pat_index) { | 
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| 156 | case 0: return " WB"; | 
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| 157 | case 1: return " WC"; | 
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| 158 | case 2: return " WT"; | 
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| 159 | case 3: return " UC"; | 
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| 160 | default: return " not defined"; | 
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| 161 | } | 
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| 162 | } else { | 
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| 163 | switch (obj->pat_index) { | 
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| 164 | case 0: return " UC"; | 
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| 165 | case 1: return HAS_LLC(i915) ? | 
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| 166 | " LLC": " snooped"; | 
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| 167 | case 2: return " L3+LLC"; | 
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| 168 | case 3: return " WT"; | 
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| 169 | default: return " not defined"; | 
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| 170 | } | 
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| 171 | } | 
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| 172 | } | 
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| 173 |  | 
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| 174 | void | 
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| 175 | i915_debugfs_describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj) | 
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| 176 | { | 
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| 177 | struct i915_vma *vma; | 
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| 178 | int pin_count = 0; | 
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| 179 |  | 
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| 180 | seq_printf(m, fmt: "%pK: %c%c%c %8zdKiB %02x %02x %s%s%s", | 
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| 181 | &obj->base, | 
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| 182 | get_tiling_flag(obj), | 
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| 183 | get_global_flag(obj), | 
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| 184 | get_pin_mapped_flag(obj), | 
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| 185 | obj->base.size / 1024, | 
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| 186 | obj->read_domains, | 
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| 187 | obj->write_domain, | 
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| 188 | i915_cache_level_str(obj), | 
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| 189 | obj->mm.dirty ? " dirty": "", | 
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| 190 | obj->mm.madv == I915_MADV_DONTNEED ? " purgeable": ""); | 
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| 191 | if (obj->base.name) | 
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| 192 | seq_printf(m, fmt: " (name: %d)", obj->base.name); | 
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| 193 |  | 
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| 194 | spin_lock(lock: &obj->vma.lock); | 
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| 195 | list_for_each_entry(vma, &obj->vma.list, obj_link) { | 
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| 196 | if (!drm_mm_node_allocated(node: &vma->node)) | 
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| 197 | continue; | 
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| 198 |  | 
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| 199 | spin_unlock(lock: &obj->vma.lock); | 
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| 200 |  | 
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| 201 | if (i915_vma_is_pinned(vma)) | 
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| 202 | pin_count++; | 
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| 203 |  | 
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| 204 | seq_printf(m, fmt: " (%s offset: %08llx, size: %08llx, pages: %s", | 
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| 205 | stringify_vma_type(vma), | 
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| 206 | i915_vma_offset(vma), i915_vma_size(vma), | 
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| 207 | stringify_page_sizes(page_sizes: vma->resource->page_sizes_gtt, | 
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| 208 | NULL, len: 0)); | 
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| 209 | if (i915_vma_is_ggtt(vma) || i915_vma_is_dpt(vma)) { | 
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| 210 | switch (vma->gtt_view.type) { | 
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| 211 | case I915_GTT_VIEW_NORMAL: | 
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| 212 | seq_puts(m, s: ", normal"); | 
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| 213 | break; | 
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| 214 |  | 
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| 215 | case I915_GTT_VIEW_PARTIAL: | 
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| 216 | seq_printf(m, fmt: ", partial [%08llx+%x]", | 
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| 217 | vma->gtt_view.partial.offset << PAGE_SHIFT, | 
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| 218 | vma->gtt_view.partial.size << PAGE_SHIFT); | 
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| 219 | break; | 
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| 220 |  | 
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| 221 | case I915_GTT_VIEW_ROTATED: | 
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| 222 | seq_printf(m, fmt: ", rotated [(%ux%u, src_stride=%u, dst_stride=%u, offset=%u), (%ux%u, src_stride=%u, dst_stride=%u, offset=%u)]", | 
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| 223 | vma->gtt_view.rotated.plane[0].width, | 
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| 224 | vma->gtt_view.rotated.plane[0].height, | 
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| 225 | vma->gtt_view.rotated.plane[0].src_stride, | 
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| 226 | vma->gtt_view.rotated.plane[0].dst_stride, | 
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| 227 | vma->gtt_view.rotated.plane[0].offset, | 
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| 228 | vma->gtt_view.rotated.plane[1].width, | 
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| 229 | vma->gtt_view.rotated.plane[1].height, | 
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| 230 | vma->gtt_view.rotated.plane[1].src_stride, | 
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| 231 | vma->gtt_view.rotated.plane[1].dst_stride, | 
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| 232 | vma->gtt_view.rotated.plane[1].offset); | 
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| 233 | break; | 
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| 234 |  | 
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| 235 | case I915_GTT_VIEW_REMAPPED: | 
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| 236 | seq_printf(m, fmt: ", remapped [(%ux%u, src_stride=%u, dst_stride=%u, offset=%u), (%ux%u, src_stride=%u, dst_stride=%u, offset=%u)]", | 
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| 237 | vma->gtt_view.remapped.plane[0].width, | 
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| 238 | vma->gtt_view.remapped.plane[0].height, | 
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| 239 | vma->gtt_view.remapped.plane[0].src_stride, | 
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| 240 | vma->gtt_view.remapped.plane[0].dst_stride, | 
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| 241 | vma->gtt_view.remapped.plane[0].offset, | 
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| 242 | vma->gtt_view.remapped.plane[1].width, | 
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| 243 | vma->gtt_view.remapped.plane[1].height, | 
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| 244 | vma->gtt_view.remapped.plane[1].src_stride, | 
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| 245 | vma->gtt_view.remapped.plane[1].dst_stride, | 
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| 246 | vma->gtt_view.remapped.plane[1].offset); | 
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| 247 | break; | 
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| 248 |  | 
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| 249 | default: | 
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| 250 | MISSING_CASE(vma->gtt_view.type); | 
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| 251 | break; | 
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| 252 | } | 
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| 253 | } | 
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| 254 | if (vma->fence) | 
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| 255 | seq_printf(m, fmt: " , fence: %d", vma->fence->id); | 
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| 256 | seq_puts(m, s: ")"); | 
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| 257 |  | 
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| 258 | spin_lock(lock: &obj->vma.lock); | 
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| 259 | } | 
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| 260 | spin_unlock(lock: &obj->vma.lock); | 
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| 261 |  | 
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| 262 | seq_printf(m, fmt: " (pinned x %d)", pin_count); | 
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| 263 | if (i915_gem_object_is_stolen(obj)) | 
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| 264 | seq_printf(m, fmt: " (stolen: %08llx)", obj->stolen->start); | 
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| 265 | if (i915_gem_object_is_framebuffer(obj)) | 
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| 266 | seq_printf(m, fmt: " (fb)"); | 
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| 267 | } | 
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| 268 |  | 
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| 269 | static int i915_gem_object_info(struct seq_file *m, void *data) | 
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| 270 | { | 
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| 271 | struct drm_i915_private *i915 = node_to_i915(node: m->private); | 
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| 272 | struct drm_printer p = drm_seq_file_printer(f: m); | 
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| 273 | struct intel_memory_region *mr; | 
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| 274 | enum intel_region_id id; | 
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| 275 |  | 
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| 276 | seq_printf(m, fmt: "%u shrinkable [%u free] objects, %llu bytes\n", | 
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| 277 | i915->mm.shrink_count, | 
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| 278 | atomic_read(v: &i915->mm.free_count), | 
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| 279 | i915->mm.shrink_memory); | 
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| 280 | for_each_memory_region(mr, i915, id) | 
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| 281 | intel_memory_region_debug(mr, printer: &p); | 
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| 282 |  | 
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| 283 | return 0; | 
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| 284 | } | 
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| 285 |  | 
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| 286 | static int i915_frequency_info(struct seq_file *m, void *unused) | 
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| 287 | { | 
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| 288 | struct drm_i915_private *i915 = node_to_i915(node: m->private); | 
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| 289 | struct intel_gt *gt = to_gt(i915); | 
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| 290 | struct drm_printer p = drm_seq_file_printer(f: m); | 
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| 291 |  | 
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| 292 | intel_gt_pm_frequency_dump(gt, m: &p); | 
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| 293 |  | 
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| 294 | return 0; | 
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| 295 | } | 
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| 296 |  | 
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| 297 | static const char *swizzle_string(unsigned swizzle) | 
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| 298 | { | 
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| 299 | switch (swizzle) { | 
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| 300 | case I915_BIT_6_SWIZZLE_NONE: | 
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| 301 | return "none"; | 
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| 302 | case I915_BIT_6_SWIZZLE_9: | 
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| 303 | return "bit9"; | 
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| 304 | case I915_BIT_6_SWIZZLE_9_10: | 
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| 305 | return "bit9/bit10"; | 
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| 306 | case I915_BIT_6_SWIZZLE_9_11: | 
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| 307 | return "bit9/bit11"; | 
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| 308 | case I915_BIT_6_SWIZZLE_9_10_11: | 
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| 309 | return "bit9/bit10/bit11"; | 
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| 310 | case I915_BIT_6_SWIZZLE_9_17: | 
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| 311 | return "bit9/bit17"; | 
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| 312 | case I915_BIT_6_SWIZZLE_9_10_17: | 
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| 313 | return "bit9/bit10/bit17"; | 
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| 314 | case I915_BIT_6_SWIZZLE_UNKNOWN: | 
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| 315 | return "unknown"; | 
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| 316 | } | 
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| 317 |  | 
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| 318 | return "bug"; | 
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| 319 | } | 
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| 320 |  | 
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| 321 | static int i915_swizzle_info(struct seq_file *m, void *data) | 
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| 322 | { | 
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| 323 | struct drm_i915_private *dev_priv = node_to_i915(node: m->private); | 
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| 324 | struct intel_uncore *uncore = &dev_priv->uncore; | 
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| 325 | intel_wakeref_t wakeref; | 
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| 326 |  | 
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| 327 | seq_printf(m, fmt: "bit6 swizzle for X-tiling = %s\n", | 
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| 328 | swizzle_string(swizzle: to_gt(i915: dev_priv)->ggtt->bit_6_swizzle_x)); | 
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| 329 | seq_printf(m, fmt: "bit6 swizzle for Y-tiling = %s\n", | 
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| 330 | swizzle_string(swizzle: to_gt(i915: dev_priv)->ggtt->bit_6_swizzle_y)); | 
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| 331 |  | 
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| 332 | if (dev_priv->gem_quirks & GEM_QUIRK_PIN_SWIZZLED_PAGES) | 
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| 333 | seq_puts(m, s: "L-shaped memory detected\n"); | 
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| 334 |  | 
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| 335 | /* On BDW+, swizzling is not used. See detect_bit_6_swizzle() */ | 
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| 336 | if (GRAPHICS_VER(dev_priv) >= 8 || IS_VALLEYVIEW(dev_priv)) | 
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| 337 | return 0; | 
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| 338 |  | 
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| 339 | wakeref = intel_runtime_pm_get(rpm: &dev_priv->runtime_pm); | 
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| 340 |  | 
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| 341 | if (IS_GRAPHICS_VER(dev_priv, 3, 4)) { | 
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| 342 | seq_printf(m, fmt: "DDC = 0x%08x\n", | 
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| 343 | intel_uncore_read(uncore, DCC)); | 
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| 344 | seq_printf(m, fmt: "DDC2 = 0x%08x\n", | 
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| 345 | intel_uncore_read(uncore, DCC2)); | 
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| 346 | seq_printf(m, fmt: "C0DRB3 = 0x%04x\n", | 
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| 347 | intel_uncore_read16(uncore, C0DRB3_BW)); | 
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| 348 | seq_printf(m, fmt: "C1DRB3 = 0x%04x\n", | 
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| 349 | intel_uncore_read16(uncore, C1DRB3_BW)); | 
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| 350 | } else if (GRAPHICS_VER(dev_priv) >= 6) { | 
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| 351 | seq_printf(m, fmt: "MAD_DIMM_C0 = 0x%08x\n", | 
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| 352 | intel_uncore_read(uncore, MAD_DIMM_C0)); | 
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| 353 | seq_printf(m, fmt: "MAD_DIMM_C1 = 0x%08x\n", | 
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| 354 | intel_uncore_read(uncore, MAD_DIMM_C1)); | 
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| 355 | seq_printf(m, fmt: "MAD_DIMM_C2 = 0x%08x\n", | 
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| 356 | intel_uncore_read(uncore, MAD_DIMM_C2)); | 
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| 357 | seq_printf(m, fmt: "TILECTL = 0x%08x\n", | 
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| 358 | intel_uncore_read(uncore, TILECTL)); | 
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| 359 | if (GRAPHICS_VER(dev_priv) >= 8) | 
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| 360 | seq_printf(m, fmt: "GAMTARBMODE = 0x%08x\n", | 
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| 361 | intel_uncore_read(uncore, GAMTARBMODE)); | 
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| 362 | else | 
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| 363 | seq_printf(m, fmt: "ARB_MODE = 0x%08x\n", | 
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| 364 | intel_uncore_read(uncore, ARB_MODE)); | 
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| 365 | seq_printf(m, fmt: "DISP_ARB_CTL = 0x%08x\n", | 
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| 366 | intel_uncore_read(uncore, DISP_ARB_CTL)); | 
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| 367 | } | 
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| 368 |  | 
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| 369 | intel_runtime_pm_put(rpm: &dev_priv->runtime_pm, wref: wakeref); | 
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| 370 |  | 
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| 371 | return 0; | 
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| 372 | } | 
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| 373 |  | 
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| 374 | static int i915_rps_boost_info(struct seq_file *m, void *data) | 
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| 375 | { | 
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| 376 | struct drm_i915_private *dev_priv = node_to_i915(node: m->private); | 
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| 377 | struct intel_rps *rps = &to_gt(i915: dev_priv)->rps; | 
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| 378 |  | 
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| 379 | seq_printf(m, fmt: "RPS enabled? %s\n", | 
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| 380 | str_yes_no(v: intel_rps_is_enabled(rps))); | 
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| 381 | seq_printf(m, fmt: "RPS active? %s\n", | 
|---|
| 382 | str_yes_no(v: intel_rps_is_active(rps))); | 
|---|
| 383 | seq_printf(m, fmt: "GPU busy? %s\n", str_yes_no(v: to_gt(i915: dev_priv)->awake)); | 
|---|
| 384 | seq_printf(m, fmt: "Boosts outstanding? %d\n", | 
|---|
| 385 | atomic_read(v: &rps->num_waiters)); | 
|---|
| 386 | seq_printf(m, fmt: "Interactive? %d\n", READ_ONCE(rps->power.interactive)); | 
|---|
| 387 | seq_printf(m, fmt: "Frequency requested %d, actual %d\n", | 
|---|
| 388 | intel_gpu_freq(rps, val: rps->cur_freq), | 
|---|
| 389 | intel_rps_read_actual_frequency(rps)); | 
|---|
| 390 | seq_printf(m, fmt: "  min hard:%d, soft:%d; max soft:%d, hard:%d\n", | 
|---|
| 391 | intel_gpu_freq(rps, val: rps->min_freq), | 
|---|
| 392 | intel_gpu_freq(rps, val: rps->min_freq_softlimit), | 
|---|
| 393 | intel_gpu_freq(rps, val: rps->max_freq_softlimit), | 
|---|
| 394 | intel_gpu_freq(rps, val: rps->max_freq)); | 
|---|
| 395 | seq_printf(m, fmt: "  idle:%d, efficient:%d, boost:%d\n", | 
|---|
| 396 | intel_gpu_freq(rps, val: rps->idle_freq), | 
|---|
| 397 | intel_gpu_freq(rps, val: rps->efficient_freq), | 
|---|
| 398 | intel_gpu_freq(rps, val: rps->boost_freq)); | 
|---|
| 399 |  | 
|---|
| 400 | seq_printf(m, fmt: "Wait boosts: %d\n", READ_ONCE(rps->boosts)); | 
|---|
| 401 |  | 
|---|
| 402 | return 0; | 
|---|
| 403 | } | 
|---|
| 404 |  | 
|---|
| 405 | static int i915_runtime_pm_status(struct seq_file *m, void *unused) | 
|---|
| 406 | { | 
|---|
| 407 | struct drm_i915_private *dev_priv = node_to_i915(node: m->private); | 
|---|
| 408 | struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev); | 
|---|
| 409 |  | 
|---|
| 410 | if (!HAS_RUNTIME_PM(dev_priv)) | 
|---|
| 411 | seq_puts(m, s: "Runtime power management not supported\n"); | 
|---|
| 412 |  | 
|---|
| 413 | seq_printf(m, fmt: "GPU idle: %s\n", str_yes_no(v: !to_gt(i915: dev_priv)->awake)); | 
|---|
| 414 | seq_printf(m, fmt: "IRQs disabled: %s\n", | 
|---|
| 415 | str_yes_no(v: !intel_irqs_enabled(dev_priv))); | 
|---|
| 416 | #ifdef CONFIG_PM | 
|---|
| 417 | seq_printf(m, fmt: "Usage count: %d\n", | 
|---|
| 418 | atomic_read(v: &dev_priv->drm.dev->power.usage_count)); | 
|---|
| 419 | #else | 
|---|
| 420 | seq_printf(m, "Device Power Management (CONFIG_PM) disabled\n"); | 
|---|
| 421 | #endif | 
|---|
| 422 | seq_printf(m, fmt: "PCI device power state: %s [%d]\n", | 
|---|
| 423 | pci_power_name(state: pdev->current_state), | 
|---|
| 424 | pdev->current_state); | 
|---|
| 425 |  | 
|---|
| 426 | if (IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)) { | 
|---|
| 427 | struct drm_printer p = drm_seq_file_printer(f: m); | 
|---|
| 428 |  | 
|---|
| 429 | print_intel_runtime_pm_wakeref(rpm: &dev_priv->runtime_pm, p: &p); | 
|---|
| 430 | } | 
|---|
| 431 |  | 
|---|
| 432 | return 0; | 
|---|
| 433 | } | 
|---|
| 434 |  | 
|---|
| 435 | static int i915_engine_info(struct seq_file *m, void *unused) | 
|---|
| 436 | { | 
|---|
| 437 | struct drm_i915_private *i915 = node_to_i915(node: m->private); | 
|---|
| 438 | struct intel_engine_cs *engine; | 
|---|
| 439 | intel_wakeref_t wakeref; | 
|---|
| 440 | struct drm_printer p; | 
|---|
| 441 |  | 
|---|
| 442 | wakeref = intel_runtime_pm_get(rpm: &i915->runtime_pm); | 
|---|
| 443 |  | 
|---|
| 444 | seq_printf(m, fmt: "GT awake? %s [%d], %llums\n", | 
|---|
| 445 | str_yes_no(v: to_gt(i915)->awake), | 
|---|
| 446 | atomic_read(v: &to_gt(i915)->wakeref.count), | 
|---|
| 447 | ktime_to_ms(kt: intel_gt_get_awake_time(gt: to_gt(i915)))); | 
|---|
| 448 | seq_printf(m, fmt: "CS timestamp frequency: %u Hz, %d ns\n", | 
|---|
| 449 | to_gt(i915)->clock_frequency, | 
|---|
| 450 | to_gt(i915)->clock_period_ns); | 
|---|
| 451 |  | 
|---|
| 452 | p = drm_seq_file_printer(f: m); | 
|---|
| 453 | for_each_uabi_engine(engine, i915) | 
|---|
| 454 | intel_engine_dump(engine, m: &p, header: "%s\n", engine->name); | 
|---|
| 455 |  | 
|---|
| 456 | intel_gt_show_timelines(gt: to_gt(i915), m: &p, show_request: i915_request_show_with_schedule); | 
|---|
| 457 |  | 
|---|
| 458 | intel_runtime_pm_put(rpm: &i915->runtime_pm, wref: wakeref); | 
|---|
| 459 |  | 
|---|
| 460 | return 0; | 
|---|
| 461 | } | 
|---|
| 462 |  | 
|---|
| 463 | static int i915_wa_registers(struct seq_file *m, void *unused) | 
|---|
| 464 | { | 
|---|
| 465 | struct drm_i915_private *i915 = node_to_i915(node: m->private); | 
|---|
| 466 | struct intel_engine_cs *engine; | 
|---|
| 467 |  | 
|---|
| 468 | for_each_uabi_engine(engine, i915) { | 
|---|
| 469 | const struct i915_wa_list *wal = &engine->ctx_wa_list; | 
|---|
| 470 | const struct i915_wa *wa; | 
|---|
| 471 | unsigned int count; | 
|---|
| 472 |  | 
|---|
| 473 | count = wal->count; | 
|---|
| 474 | if (!count) | 
|---|
| 475 | continue; | 
|---|
| 476 |  | 
|---|
| 477 | seq_printf(m, fmt: "%s: Workarounds applied: %u\n", | 
|---|
| 478 | engine->name, count); | 
|---|
| 479 |  | 
|---|
| 480 | for (wa = wal->list; count--; wa++) | 
|---|
| 481 | seq_printf(m, fmt: "0x%X: 0x%08X, mask: 0x%08X\n", | 
|---|
| 482 | i915_mmio_reg_offset(wa->reg), | 
|---|
| 483 | wa->set, wa->clr); | 
|---|
| 484 |  | 
|---|
| 485 | seq_printf(m, fmt: "\n"); | 
|---|
| 486 | } | 
|---|
| 487 |  | 
|---|
| 488 | return 0; | 
|---|
| 489 | } | 
|---|
| 490 |  | 
|---|
| 491 | static int i915_wedged_get(void *data, u64 *val) | 
|---|
| 492 | { | 
|---|
| 493 | struct drm_i915_private *i915 = data; | 
|---|
| 494 | struct intel_gt *gt; | 
|---|
| 495 | unsigned int i; | 
|---|
| 496 |  | 
|---|
| 497 | *val = 0; | 
|---|
| 498 |  | 
|---|
| 499 | for_each_gt(gt, i915, i) { | 
|---|
| 500 | int ret; | 
|---|
| 501 |  | 
|---|
| 502 | ret = intel_gt_debugfs_reset_show(gt, val); | 
|---|
| 503 | if (ret) | 
|---|
| 504 | return ret; | 
|---|
| 505 |  | 
|---|
| 506 | /* at least one tile should be wedged */ | 
|---|
| 507 | if (*val) | 
|---|
| 508 | break; | 
|---|
| 509 | } | 
|---|
| 510 |  | 
|---|
| 511 | return 0; | 
|---|
| 512 | } | 
|---|
| 513 |  | 
|---|
| 514 | static int i915_wedged_set(void *data, u64 val) | 
|---|
| 515 | { | 
|---|
| 516 | struct drm_i915_private *i915 = data; | 
|---|
| 517 | struct intel_gt *gt; | 
|---|
| 518 | unsigned int i; | 
|---|
| 519 |  | 
|---|
| 520 | for_each_gt(gt, i915, i) | 
|---|
| 521 | intel_gt_debugfs_reset_store(gt, val); | 
|---|
| 522 |  | 
|---|
| 523 | return 0; | 
|---|
| 524 | } | 
|---|
| 525 |  | 
|---|
| 526 | DEFINE_SIMPLE_ATTRIBUTE(i915_wedged_fops, | 
|---|
| 527 | i915_wedged_get, i915_wedged_set, | 
|---|
| 528 | "%llu\n"); | 
|---|
| 529 |  | 
|---|
| 530 | static int | 
|---|
| 531 | i915_perf_noa_delay_set(void *data, u64 val) | 
|---|
| 532 | { | 
|---|
| 533 | struct drm_i915_private *i915 = data; | 
|---|
| 534 |  | 
|---|
| 535 | /* | 
|---|
| 536 | * This would lead to infinite waits as we're doing timestamp | 
|---|
| 537 | * difference on the CS with only 32bits. | 
|---|
| 538 | */ | 
|---|
| 539 | if (intel_gt_ns_to_clock_interval(gt: to_gt(i915), ns: val) > U32_MAX) | 
|---|
| 540 | return -EINVAL; | 
|---|
| 541 |  | 
|---|
| 542 | atomic64_set(v: &i915->perf.noa_programming_delay, i: val); | 
|---|
| 543 | return 0; | 
|---|
| 544 | } | 
|---|
| 545 |  | 
|---|
| 546 | static int | 
|---|
| 547 | i915_perf_noa_delay_get(void *data, u64 *val) | 
|---|
| 548 | { | 
|---|
| 549 | struct drm_i915_private *i915 = data; | 
|---|
| 550 |  | 
|---|
| 551 | *val = atomic64_read(v: &i915->perf.noa_programming_delay); | 
|---|
| 552 | return 0; | 
|---|
| 553 | } | 
|---|
| 554 |  | 
|---|
| 555 | DEFINE_SIMPLE_ATTRIBUTE(i915_perf_noa_delay_fops, | 
|---|
| 556 | i915_perf_noa_delay_get, | 
|---|
| 557 | i915_perf_noa_delay_set, | 
|---|
| 558 | "%llu\n"); | 
|---|
| 559 |  | 
|---|
| 560 | #define DROP_UNBOUND	BIT(0) | 
|---|
| 561 | #define DROP_BOUND	BIT(1) | 
|---|
| 562 | #define DROP_RETIRE	BIT(2) | 
|---|
| 563 | #define DROP_ACTIVE	BIT(3) | 
|---|
| 564 | #define DROP_FREED	BIT(4) | 
|---|
| 565 | #define DROP_SHRINK_ALL	BIT(5) | 
|---|
| 566 | #define DROP_IDLE	BIT(6) | 
|---|
| 567 | #define DROP_RESET_ACTIVE	BIT(7) | 
|---|
| 568 | #define DROP_RESET_SEQNO	BIT(8) | 
|---|
| 569 | #define DROP_RCU	BIT(9) | 
|---|
| 570 | #define DROP_ALL (DROP_UNBOUND	| \ | 
|---|
| 571 | DROP_BOUND	| \ | 
|---|
| 572 | DROP_RETIRE	| \ | 
|---|
| 573 | DROP_ACTIVE	| \ | 
|---|
| 574 | DROP_FREED	| \ | 
|---|
| 575 | DROP_SHRINK_ALL |\ | 
|---|
| 576 | DROP_IDLE	| \ | 
|---|
| 577 | DROP_RESET_ACTIVE | \ | 
|---|
| 578 | DROP_RESET_SEQNO | \ | 
|---|
| 579 | DROP_RCU) | 
|---|
| 580 | static int | 
|---|
| 581 | i915_drop_caches_get(void *data, u64 *val) | 
|---|
| 582 | { | 
|---|
| 583 | *val = DROP_ALL; | 
|---|
| 584 |  | 
|---|
| 585 | return 0; | 
|---|
| 586 | } | 
|---|
| 587 |  | 
|---|
| 588 | static int | 
|---|
| 589 | gt_drop_caches(struct intel_gt *gt, u64 val) | 
|---|
| 590 | { | 
|---|
| 591 | int ret; | 
|---|
| 592 |  | 
|---|
| 593 | if (val & DROP_RESET_ACTIVE && | 
|---|
| 594 | wait_for(intel_engines_are_idle(gt), 200)) | 
|---|
| 595 | intel_gt_set_wedged(gt); | 
|---|
| 596 |  | 
|---|
| 597 | if (val & DROP_RETIRE) | 
|---|
| 598 | intel_gt_retire_requests(gt); | 
|---|
| 599 |  | 
|---|
| 600 | if (val & (DROP_IDLE | DROP_ACTIVE)) { | 
|---|
| 601 | ret = intel_gt_wait_for_idle(gt, MAX_SCHEDULE_TIMEOUT); | 
|---|
| 602 | if (ret) | 
|---|
| 603 | return ret; | 
|---|
| 604 | } | 
|---|
| 605 |  | 
|---|
| 606 | if (val & DROP_IDLE) { | 
|---|
| 607 | ret = intel_gt_pm_wait_for_idle(gt); | 
|---|
| 608 | if (ret) | 
|---|
| 609 | return ret; | 
|---|
| 610 | } | 
|---|
| 611 |  | 
|---|
| 612 | if (val & DROP_RESET_ACTIVE && intel_gt_terminally_wedged(gt)) | 
|---|
| 613 | intel_gt_handle_error(gt, ALL_ENGINES, flags: 0, NULL); | 
|---|
| 614 |  | 
|---|
| 615 | if (val & DROP_FREED) | 
|---|
| 616 | intel_gt_flush_buffer_pool(gt); | 
|---|
| 617 |  | 
|---|
| 618 | return 0; | 
|---|
| 619 | } | 
|---|
| 620 |  | 
|---|
| 621 | static int | 
|---|
| 622 | i915_drop_caches_set(void *data, u64 val) | 
|---|
| 623 | { | 
|---|
| 624 | struct drm_i915_private *i915 = data; | 
|---|
| 625 | struct intel_gt *gt; | 
|---|
| 626 | unsigned int flags; | 
|---|
| 627 | unsigned int i; | 
|---|
| 628 | int ret; | 
|---|
| 629 |  | 
|---|
| 630 | drm_dbg(&i915->drm, "Dropping caches: 0x%08llx [0x%08llx]\n", | 
|---|
| 631 | val, val & DROP_ALL); | 
|---|
| 632 |  | 
|---|
| 633 | for_each_gt(gt, i915, i) { | 
|---|
| 634 | ret = gt_drop_caches(gt, val); | 
|---|
| 635 | if (ret) | 
|---|
| 636 | return ret; | 
|---|
| 637 | } | 
|---|
| 638 |  | 
|---|
| 639 | fs_reclaim_acquire(GFP_KERNEL); | 
|---|
| 640 | flags = memalloc_noreclaim_save(); | 
|---|
| 641 | if (val & DROP_BOUND) | 
|---|
| 642 | i915_gem_shrink(NULL, i915, LONG_MAX, NULL, I915_SHRINK_BOUND); | 
|---|
| 643 |  | 
|---|
| 644 | if (val & DROP_UNBOUND) | 
|---|
| 645 | i915_gem_shrink(NULL, i915, LONG_MAX, NULL, I915_SHRINK_UNBOUND); | 
|---|
| 646 |  | 
|---|
| 647 | if (val & DROP_SHRINK_ALL) | 
|---|
| 648 | i915_gem_shrink_all(i915); | 
|---|
| 649 | memalloc_noreclaim_restore(flags); | 
|---|
| 650 | fs_reclaim_release(GFP_KERNEL); | 
|---|
| 651 |  | 
|---|
| 652 | if (val & DROP_RCU) | 
|---|
| 653 | rcu_barrier(); | 
|---|
| 654 |  | 
|---|
| 655 | if (val & DROP_FREED) | 
|---|
| 656 | i915_gem_drain_freed_objects(i915); | 
|---|
| 657 |  | 
|---|
| 658 | return 0; | 
|---|
| 659 | } | 
|---|
| 660 |  | 
|---|
| 661 | DEFINE_SIMPLE_ATTRIBUTE(i915_drop_caches_fops, | 
|---|
| 662 | i915_drop_caches_get, i915_drop_caches_set, | 
|---|
| 663 | "0x%08llx\n"); | 
|---|
| 664 |  | 
|---|
| 665 | static int i915_sseu_status(struct seq_file *m, void *unused) | 
|---|
| 666 | { | 
|---|
| 667 | struct drm_i915_private *i915 = node_to_i915(node: m->private); | 
|---|
| 668 | struct intel_gt *gt = to_gt(i915); | 
|---|
| 669 |  | 
|---|
| 670 | return intel_sseu_status(m, gt); | 
|---|
| 671 | } | 
|---|
| 672 |  | 
|---|
| 673 | static int i915_forcewake_open(struct inode *inode, struct file *file) | 
|---|
| 674 | { | 
|---|
| 675 | struct drm_i915_private *i915 = inode->i_private; | 
|---|
| 676 | struct intel_gt *gt; | 
|---|
| 677 | unsigned int i; | 
|---|
| 678 |  | 
|---|
| 679 | for_each_gt(gt, i915, i) | 
|---|
| 680 | intel_gt_pm_debugfs_forcewake_user_open(gt); | 
|---|
| 681 |  | 
|---|
| 682 | return 0; | 
|---|
| 683 | } | 
|---|
| 684 |  | 
|---|
| 685 | static int i915_forcewake_release(struct inode *inode, struct file *file) | 
|---|
| 686 | { | 
|---|
| 687 | struct drm_i915_private *i915 = inode->i_private; | 
|---|
| 688 | struct intel_gt *gt; | 
|---|
| 689 | unsigned int i; | 
|---|
| 690 |  | 
|---|
| 691 | for_each_gt(gt, i915, i) | 
|---|
| 692 | intel_gt_pm_debugfs_forcewake_user_release(gt); | 
|---|
| 693 |  | 
|---|
| 694 | return 0; | 
|---|
| 695 | } | 
|---|
| 696 |  | 
|---|
| 697 | static const struct file_operations i915_forcewake_fops = { | 
|---|
| 698 | .owner = THIS_MODULE, | 
|---|
| 699 | .open = i915_forcewake_open, | 
|---|
| 700 | .release = i915_forcewake_release, | 
|---|
| 701 | }; | 
|---|
| 702 |  | 
|---|
| 703 | static const struct drm_info_list i915_debugfs_list[] = { | 
|---|
| 704 | { "i915_capabilities", i915_capabilities, 0}, | 
|---|
| 705 | { "i915_gem_objects", i915_gem_object_info, 0}, | 
|---|
| 706 | { "i915_frequency_info", i915_frequency_info, 0}, | 
|---|
| 707 | { "i915_swizzle_info", i915_swizzle_info, 0}, | 
|---|
| 708 | { "i915_runtime_pm_status", i915_runtime_pm_status, 0}, | 
|---|
| 709 | { "i915_engine_info", i915_engine_info, 0}, | 
|---|
| 710 | { "i915_wa_registers", i915_wa_registers, 0}, | 
|---|
| 711 | { "i915_sseu_status", i915_sseu_status, 0}, | 
|---|
| 712 | { "i915_rps_boost_info", i915_rps_boost_info, 0}, | 
|---|
| 713 | }; | 
|---|
| 714 |  | 
|---|
| 715 | static const struct i915_debugfs_files { | 
|---|
| 716 | const char *name; | 
|---|
| 717 | const struct file_operations *fops; | 
|---|
| 718 | } i915_debugfs_files[] = { | 
|---|
| 719 | { "i915_perf_noa_delay", &i915_perf_noa_delay_fops}, | 
|---|
| 720 | { "i915_wedged", &i915_wedged_fops}, | 
|---|
| 721 | { "i915_gem_drop_caches", &i915_drop_caches_fops}, | 
|---|
| 722 | }; | 
|---|
| 723 |  | 
|---|
| 724 | void i915_debugfs_register(struct drm_i915_private *i915) | 
|---|
| 725 | { | 
|---|
| 726 | struct dentry *debugfs_root = i915->drm.debugfs_root; | 
|---|
| 727 | int i; | 
|---|
| 728 |  | 
|---|
| 729 | i915_debugfs_params(i915); | 
|---|
| 730 |  | 
|---|
| 731 | debugfs_create_file( "i915_forcewake_user", S_IRUSR, debugfs_root, | 
|---|
| 732 | i915, &i915_forcewake_fops); | 
|---|
| 733 | for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) { | 
|---|
| 734 | debugfs_create_file(i915_debugfs_files[i].name, S_IRUGO | S_IWUSR, | 
|---|
| 735 | debugfs_root, i915, | 
|---|
| 736 | i915_debugfs_files[i].fops); | 
|---|
| 737 | } | 
|---|
| 738 |  | 
|---|
| 739 | drm_debugfs_create_files(files: i915_debugfs_list, | 
|---|
| 740 | ARRAY_SIZE(i915_debugfs_list), | 
|---|
| 741 | root: debugfs_root, minor: i915->drm.primary); | 
|---|
| 742 |  | 
|---|
| 743 | i915_gpu_error_debugfs_register(i915); | 
|---|
| 744 | } | 
|---|
| 745 |  | 
|---|