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 "pxp/intel_pxp.h"
9
10 #include "i915_cmd_parser.h"
11 #include "i915_drv.h"
12 #include "i915_getparam.h"
13 #include "i915_perf.h"
14
i915_getparam_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)15 int i915_getparam_ioctl(struct drm_device *dev, void *data,
16 struct drm_file *file_priv)
17 {
18 struct drm_i915_private *i915 = to_i915(dev);
19 struct pci_dev *pdev = to_pci_dev(dev->dev);
20 const struct sseu_dev_info *sseu = &to_gt(i915)->info.sseu;
21 drm_i915_getparam_t *param = data;
22 int value = 0;
23
24 switch (param->param) {
25 case I915_PARAM_IRQ_ACTIVE:
26 case I915_PARAM_ALLOW_BATCHBUFFER:
27 case I915_PARAM_LAST_DISPATCH:
28 case I915_PARAM_HAS_EXEC_CONSTANTS:
29 /* Reject all old ums/dri params. */
30 return -ENODEV;
31 case I915_PARAM_CHIPSET_ID:
32 value = pdev->device;
33 break;
34 case I915_PARAM_REVISION:
35 value = pdev->revision;
36 break;
37 case I915_PARAM_NUM_FENCES_AVAIL:
38 value = to_gt(i915)->ggtt->num_fences;
39 break;
40 case I915_PARAM_HAS_OVERLAY:
41 value = !!i915->display.overlay;
42 break;
43 case I915_PARAM_HAS_BSD:
44 value = !!intel_engine_lookup_user(i915,
45 I915_ENGINE_CLASS_VIDEO, 0);
46 break;
47 case I915_PARAM_HAS_BLT:
48 value = !!intel_engine_lookup_user(i915,
49 I915_ENGINE_CLASS_COPY, 0);
50 break;
51 case I915_PARAM_HAS_VEBOX:
52 value = !!intel_engine_lookup_user(i915,
53 I915_ENGINE_CLASS_VIDEO_ENHANCE, 0);
54 break;
55 case I915_PARAM_HAS_BSD2:
56 value = !!intel_engine_lookup_user(i915,
57 I915_ENGINE_CLASS_VIDEO, 1);
58 break;
59 case I915_PARAM_HAS_LLC:
60 value = HAS_LLC(i915);
61 break;
62 case I915_PARAM_HAS_WT:
63 value = HAS_WT(i915);
64 break;
65 case I915_PARAM_HAS_ALIASING_PPGTT:
66 value = INTEL_PPGTT(i915);
67 break;
68 case I915_PARAM_HAS_SEMAPHORES:
69 value = !!(i915->caps.scheduler & I915_SCHEDULER_CAP_SEMAPHORES);
70 break;
71 case I915_PARAM_HAS_SECURE_BATCHES:
72 value = HAS_SECURE_BATCHES(i915) && capable(CAP_SYS_ADMIN);
73 break;
74 case I915_PARAM_CMD_PARSER_VERSION:
75 value = i915_cmd_parser_get_version(i915);
76 break;
77 case I915_PARAM_SUBSLICE_TOTAL:
78 value = intel_sseu_subslice_total(sseu);
79 if (!value)
80 return -ENODEV;
81 break;
82 case I915_PARAM_EU_TOTAL:
83 value = sseu->eu_total;
84 if (!value)
85 return -ENODEV;
86 break;
87 case I915_PARAM_HAS_GPU_RESET:
88 value = i915->params.enable_hangcheck &&
89 intel_has_gpu_reset(to_gt(i915));
90 if (value && intel_has_reset_engine(to_gt(i915)))
91 value = 2;
92 break;
93 case I915_PARAM_HAS_RESOURCE_STREAMER:
94 value = 0;
95 break;
96 case I915_PARAM_HAS_POOLED_EU:
97 value = HAS_POOLED_EU(i915);
98 break;
99 case I915_PARAM_MIN_EU_IN_POOL:
100 value = sseu->min_eu_in_pool;
101 break;
102 case I915_PARAM_HUC_STATUS:
103 /* On platform with a media GT, the HuC is on that GT */
104 if (i915->media_gt)
105 value = intel_huc_check_status(&i915->media_gt->uc.huc);
106 else
107 value = intel_huc_check_status(&to_gt(i915)->uc.huc);
108 if (value < 0)
109 return value;
110 break;
111 case I915_PARAM_PXP_STATUS:
112 value = intel_pxp_get_readiness_status(i915->pxp, 0);
113 if (value < 0)
114 return value;
115 break;
116 case I915_PARAM_MMAP_GTT_VERSION:
117 /* Though we've started our numbering from 1, and so class all
118 * earlier versions as 0, in effect their value is undefined as
119 * the ioctl will report EINVAL for the unknown param!
120 */
121 value = i915_gem_mmap_gtt_version();
122 break;
123 case I915_PARAM_HAS_SCHEDULER:
124 value = i915->caps.scheduler;
125 break;
126
127 case I915_PARAM_MMAP_VERSION:
128 /* Remember to bump this if the version changes! */
129 case I915_PARAM_HAS_GEM:
130 case I915_PARAM_HAS_PAGEFLIPPING:
131 case I915_PARAM_HAS_EXECBUF2: /* depends on GEM */
132 case I915_PARAM_HAS_RELAXED_FENCING:
133 case I915_PARAM_HAS_COHERENT_RINGS:
134 case I915_PARAM_HAS_RELAXED_DELTA:
135 case I915_PARAM_HAS_GEN7_SOL_RESET:
136 case I915_PARAM_HAS_WAIT_TIMEOUT:
137 case I915_PARAM_HAS_PRIME_VMAP_FLUSH:
138 case I915_PARAM_HAS_PINNED_BATCHES:
139 case I915_PARAM_HAS_EXEC_NO_RELOC:
140 case I915_PARAM_HAS_EXEC_HANDLE_LUT:
141 case I915_PARAM_HAS_COHERENT_PHYS_GTT:
142 case I915_PARAM_HAS_EXEC_SOFTPIN:
143 case I915_PARAM_HAS_EXEC_ASYNC:
144 case I915_PARAM_HAS_EXEC_FENCE:
145 case I915_PARAM_HAS_EXEC_CAPTURE:
146 case I915_PARAM_HAS_EXEC_BATCH_FIRST:
147 case I915_PARAM_HAS_EXEC_FENCE_ARRAY:
148 case I915_PARAM_HAS_EXEC_SUBMIT_FENCE:
149 case I915_PARAM_HAS_EXEC_TIMELINE_FENCES:
150 case I915_PARAM_HAS_USERPTR_PROBE:
151 /* For the time being all of these are always true;
152 * if some supported hardware does not have one of these
153 * features this value needs to be provided from
154 * INTEL_INFO(), a feature macro, or similar.
155 */
156 value = 1;
157 break;
158 case I915_PARAM_HAS_CONTEXT_FREQ_HINT:
159 if (intel_uc_uses_guc_submission(&to_gt(i915)->uc))
160 value = 1;
161 else
162 value = -EINVAL;
163 break;
164 case I915_PARAM_HAS_CONTEXT_ISOLATION:
165 value = intel_engines_has_context_isolation(i915);
166 break;
167 case I915_PARAM_SLICE_MASK:
168 /* Not supported from Xe_HP onward; use topology queries */
169 if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 55))
170 return -EINVAL;
171
172 value = sseu->slice_mask;
173 if (!value)
174 return -ENODEV;
175 break;
176 case I915_PARAM_SUBSLICE_MASK:
177 /* Not supported from Xe_HP onward; use topology queries */
178 if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 55))
179 return -EINVAL;
180
181 /* Only copy bits from the first slice */
182 value = intel_sseu_get_hsw_subslices(sseu, 0);
183 if (!value)
184 return -ENODEV;
185 break;
186 case I915_PARAM_CS_TIMESTAMP_FREQUENCY:
187 value = to_gt(i915)->clock_frequency;
188 break;
189 case I915_PARAM_MMAP_GTT_COHERENT:
190 value = INTEL_INFO(i915)->has_coherent_ggtt;
191 break;
192 case I915_PARAM_PERF_REVISION:
193 value = i915_perf_ioctl_version(i915);
194 break;
195 case I915_PARAM_OA_TIMESTAMP_FREQUENCY:
196 value = i915_perf_oa_timestamp_frequency(i915);
197 break;
198 default:
199 drm_dbg(&i915->drm, "Unknown parameter %d\n", param->param);
200 return -EINVAL;
201 }
202
203 if (put_user(value, param->value))
204 return -EFAULT;
205
206 return 0;
207 }
208