2 * Copyright © 2014-2017 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
25 #ifndef _INTEL_DEVICE_INFO_H_
26 #define _INTEL_DEVICE_INFO_H_
28 #include <uapi/drm/i915_drm.h>
30 #include "intel_display.h"
33 struct drm_i915_private;
35 /* Keep in gen based order, and chronological order within a gen */
37 INTEL_PLATFORM_UNINITIALIZED = 0,
79 enum intel_ppgtt_type {
80 INTEL_PPGTT_NONE = I915_GEM_PPGTT_NONE,
81 INTEL_PPGTT_ALIASING = I915_GEM_PPGTT_ALIASING,
82 INTEL_PPGTT_FULL = I915_GEM_PPGTT_FULL,
85 #define DEV_INFO_FOR_EACH_FLAG(func) \
88 func(is_alpha_support); \
89 /* Keep has_* in alphabetical order */ \
90 func(has_64bit_reloc); \
91 func(gpu_reset_clobbers_display); \
92 func(has_reset_engine); \
98 func(has_logical_ring_contexts); \
99 func(has_logical_ring_elsq); \
100 func(has_logical_ring_preemption); \
101 func(has_pooled_eu); \
104 func(has_runtime_pm); \
106 func(has_coherent_ggtt); \
107 func(unfenced_needs_alignment); \
108 func(hws_needs_physical);
110 #define DEV_INFO_DISPLAY_FOR_EACH_FLAG(func) \
111 /* Keep in alphabetical order */ \
112 func(cursor_needs_physical); \
122 func(overlay_needs_physical); \
125 #define GEN_MAX_SLICES (6) /* CNL upper bound */
126 #define GEN_MAX_SUBSLICES (8) /* ICL upper bound */
128 struct sseu_dev_info {
130 u8 subslice_mask[GEN_MAX_SLICES];
134 /* For each slice, which subslice(s) has(have) 7 EUs (bitfield)? */
137 u8 has_subslice_pg:1;
140 /* Topology fields */
143 u8 max_eus_per_subslice;
145 /* We don't have more than 8 eus per subslice at the moment and as we
146 * store eus enabled using bits, no need to multiply by eus per
149 u8 eu_mask[GEN_MAX_SLICES * GEN_MAX_SUBSLICES];
152 typedef u8 intel_engine_mask_t;
154 struct intel_device_info {
158 u8 gt; /* GT number, 0 if undefined */
159 intel_engine_mask_t engine_mask; /* Engines supported by the HW */
161 enum intel_platform platform;
164 enum intel_ppgtt_type ppgtt_type;
165 unsigned int ppgtt_size; /* log2, e.g. 31/32/48 bits */
167 unsigned int page_sizes; /* page sizes supported by the HW */
169 u32 display_mmio_offset;
173 #define DEFINE_FLAG(name) u8 name:1
174 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG);
178 #define DEFINE_FLAG(name) u8 name:1
179 DEV_INFO_DISPLAY_FOR_EACH_FLAG(DEFINE_FLAG);
183 u16 ddb_size; /* in blocks */
185 /* Register offsets for the various display pipes and transcoders */
186 int pipe_offsets[I915_MAX_TRANSCODERS];
187 int trans_offsets[I915_MAX_TRANSCODERS];
188 int cursor_offsets[I915_MAX_PIPES];
191 u16 degamma_lut_size;
193 u32 degamma_lut_tests;
198 struct intel_runtime_info {
201 u8 num_sprites[I915_MAX_PIPES];
202 u8 num_scalers[I915_MAX_PIPES];
206 /* Slice/subslice/EU info */
207 struct sseu_dev_info sseu;
209 u32 cs_timestamp_frequency_khz;
211 /* Enabled (not fused off) media engine bitmasks. */
215 /* Media engine access to SFC per instance */
219 struct intel_driver_caps {
220 unsigned int scheduler;
221 bool has_logical_contexts:1;
224 static inline unsigned int sseu_subslice_total(const struct sseu_dev_info *sseu)
226 unsigned int i, total = 0;
228 for (i = 0; i < ARRAY_SIZE(sseu->subslice_mask); i++)
229 total += hweight8(sseu->subslice_mask[i]);
234 static inline int sseu_eu_idx(const struct sseu_dev_info *sseu,
235 int slice, int subslice)
237 int subslice_stride = DIV_ROUND_UP(sseu->max_eus_per_subslice,
239 int slice_stride = sseu->max_subslices * subslice_stride;
241 return slice * slice_stride + subslice * subslice_stride;
244 static inline u16 sseu_get_eus(const struct sseu_dev_info *sseu,
245 int slice, int subslice)
247 int i, offset = sseu_eu_idx(sseu, slice, subslice);
251 i < DIV_ROUND_UP(sseu->max_eus_per_subslice, BITS_PER_BYTE); i++) {
252 eu_mask |= ((u16) sseu->eu_mask[offset + i]) <<
259 static inline void sseu_set_eus(struct sseu_dev_info *sseu,
260 int slice, int subslice, u16 eu_mask)
262 int i, offset = sseu_eu_idx(sseu, slice, subslice);
265 i < DIV_ROUND_UP(sseu->max_eus_per_subslice, BITS_PER_BYTE); i++) {
266 sseu->eu_mask[offset + i] =
267 (eu_mask >> (BITS_PER_BYTE * i)) & 0xff;
271 const char *intel_platform_name(enum intel_platform platform);
273 void intel_device_info_runtime_init(struct drm_i915_private *dev_priv);
274 void intel_device_info_dump_flags(const struct intel_device_info *info,
275 struct drm_printer *p);
276 void intel_device_info_dump_runtime(const struct intel_runtime_info *info,
277 struct drm_printer *p);
278 void intel_device_info_dump_topology(const struct sseu_dev_info *sseu,
279 struct drm_printer *p);
281 void intel_device_info_init_mmio(struct drm_i915_private *dev_priv);
283 void intel_driver_caps_print(const struct intel_driver_caps *caps,
284 struct drm_printer *p);