1 /*
2 * SPDX-License-Identifier: MIT
3 */
4
5 #include "gem/i915_gem_mman.h"
6 #include "gt/intel_engine_user.h"
7
8 #include "i915_drv.h"
9 #include "i915_perf.h"
10
i915_getparam_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)11 int i915_getparam_ioctl(struct drm_device *dev, void *data,
12 struct drm_file *file_priv)
13 {
14 struct drm_i915_private *i915 = to_i915(dev);
15 struct pci_dev *pdev = to_pci_dev(dev->dev);
16 const struct sseu_dev_info *sseu = &i915->gt.info.sseu;
17 drm_i915_getparam_t *param = data;
18 int value;
19
20 switch (param->param) {
21 case I915_PARAM_IRQ_ACTIVE:
22 case I915_PARAM_ALLOW_BATCHBUFFER:
23 case I915_PARAM_LAST_DISPATCH:
24 case I915_PARAM_HAS_EXEC_CONSTANTS:
25 /* Reject all old ums/dri params. */
26 return -ENODEV;
27 case I915_PARAM_CHIPSET_ID:
28 value = pdev->device;
29 break;
30 case I915_PARAM_REVISION:
31 value = pdev->revision;
32 break;
33 case I915_PARAM_NUM_FENCES_AVAIL:
34 value = i915->ggtt.num_fences;
35 break;
36 case I915_PARAM_HAS_OVERLAY:
37 value = !!i915->overlay;
38 break;
39 case I915_PARAM_HAS_BSD:
40 value = !!intel_engine_lookup_user(i915,
41 I915_ENGINE_CLASS_VIDEO, 0);
42 break;
43 case I915_PARAM_HAS_BLT:
44 value = !!intel_engine_lookup_user(i915,
45 I915_ENGINE_CLASS_COPY, 0);
46 break;
47 case I915_PARAM_HAS_VEBOX:
48 value = !!intel_engine_lookup_user(i915,
49 I915_ENGINE_CLASS_VIDEO_ENHANCE, 0);
50 break;
51 case I915_PARAM_HAS_BSD2:
52 value = !!intel_engine_lookup_user(i915,
53 I915_ENGINE_CLASS_VIDEO, 1);
54 break;
55 case I915_PARAM_HAS_LLC:
56 value = HAS_LLC(i915);
57 break;
58 case I915_PARAM_HAS_WT:
59 value = HAS_WT(i915);
60 break;
61 case I915_PARAM_HAS_ALIASING_PPGTT:
62 value = INTEL_PPGTT(i915);
63 break;
64 case I915_PARAM_HAS_SEMAPHORES:
65 value = !!(i915->caps.scheduler & I915_SCHEDULER_CAP_SEMAPHORES);
66 break;
67 case I915_PARAM_HAS_SECURE_BATCHES:
68 value = HAS_SECURE_BATCHES(i915) && capable(CAP_SYS_ADMIN);
69 break;
70 case I915_PARAM_CMD_PARSER_VERSION:
71 value = i915_cmd_parser_get_version(i915);
72 break;
73 case I915_PARAM_SUBSLICE_TOTAL:
74 value = intel_sseu_subslice_total(sseu);
75 if (!value)
76 return -ENODEV;
77 break;
78 case I915_PARAM_EU_TOTAL:
79 value = sseu->eu_total;
80 if (!value)
81 return -ENODEV;
82 break;
83 case I915_PARAM_HAS_GPU_RESET:
84 value = i915->params.enable_hangcheck &&
85 intel_has_gpu_reset(&i915->gt);
86 if (value && intel_has_reset_engine(&i915->gt))
87 value = 2;
88 break;
89 case I915_PARAM_HAS_RESOURCE_STREAMER:
90 value = 0;
91 break;
92 case I915_PARAM_HAS_POOLED_EU:
93 value = HAS_POOLED_EU(i915);
94 break;
95 case I915_PARAM_MIN_EU_IN_POOL:
96 value = sseu->min_eu_in_pool;
97 break;
98 case I915_PARAM_HUC_STATUS:
99 value = intel_huc_check_status(&i915->gt.uc.huc);
100 if (value < 0)
101 return value;
102 break;
103 case I915_PARAM_MMAP_GTT_VERSION:
104 /* Though we've started our numbering from 1, and so class all
105 * earlier versions as 0, in effect their value is undefined as
106 * the ioctl will report EINVAL for the unknown param!
107 */
108 value = i915_gem_mmap_gtt_version();
109 break;
110 case I915_PARAM_HAS_SCHEDULER:
111 value = i915->caps.scheduler;
112 break;
113
114 case I915_PARAM_MMAP_VERSION:
115 /* Remember to bump this if the version changes! */
116 case I915_PARAM_HAS_GEM:
117 case I915_PARAM_HAS_PAGEFLIPPING:
118 case I915_PARAM_HAS_EXECBUF2: /* depends on GEM */
119 case I915_PARAM_HAS_RELAXED_FENCING:
120 case I915_PARAM_HAS_COHERENT_RINGS:
121 case I915_PARAM_HAS_RELAXED_DELTA:
122 case I915_PARAM_HAS_GEN7_SOL_RESET:
123 case I915_PARAM_HAS_WAIT_TIMEOUT:
124 case I915_PARAM_HAS_PRIME_VMAP_FLUSH:
125 case I915_PARAM_HAS_PINNED_BATCHES:
126 case I915_PARAM_HAS_EXEC_NO_RELOC:
127 case I915_PARAM_HAS_EXEC_HANDLE_LUT:
128 case I915_PARAM_HAS_COHERENT_PHYS_GTT:
129 case I915_PARAM_HAS_EXEC_SOFTPIN:
130 case I915_PARAM_HAS_EXEC_ASYNC:
131 case I915_PARAM_HAS_EXEC_FENCE:
132 case I915_PARAM_HAS_EXEC_CAPTURE:
133 case I915_PARAM_HAS_EXEC_BATCH_FIRST:
134 case I915_PARAM_HAS_EXEC_FENCE_ARRAY:
135 case I915_PARAM_HAS_EXEC_SUBMIT_FENCE:
136 case I915_PARAM_HAS_EXEC_TIMELINE_FENCES:
137 /* For the time being all of these are always true;
138 * if some supported hardware does not have one of these
139 * features this value needs to be provided from
140 * INTEL_INFO(), a feature macro, or similar.
141 */
142 value = 1;
143 break;
144 case I915_PARAM_HAS_CONTEXT_ISOLATION:
145 value = intel_engines_has_context_isolation(i915);
146 break;
147 case I915_PARAM_SLICE_MASK:
148 value = sseu->slice_mask;
149 if (!value)
150 return -ENODEV;
151 break;
152 case I915_PARAM_SUBSLICE_MASK:
153 value = sseu->subslice_mask[0];
154 if (!value)
155 return -ENODEV;
156 break;
157 case I915_PARAM_CS_TIMESTAMP_FREQUENCY:
158 value = i915->gt.clock_frequency;
159 break;
160 case I915_PARAM_MMAP_GTT_COHERENT:
161 value = INTEL_INFO(i915)->has_coherent_ggtt;
162 break;
163 case I915_PARAM_PERF_REVISION:
164 value = i915_perf_ioctl_version();
165 break;
166 default:
167 DRM_DEBUG("Unknown parameter %d\n", param->param);
168 return -EINVAL;
169 }
170
171 if (put_user(value, param->value))
172 return -EFAULT;
173
174 return 0;
175 }
176