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 "intel_display.h"
31 struct drm_i915_private;
33 /* Keep in gen based order, and chronological order within a gen */
35 INTEL_PLATFORM_UNINITIALIZED = 0,
77 #define DEV_INFO_FOR_EACH_FLAG(func) \
80 func(is_alpha_support); \
81 /* Keep has_* in alphabetical order */ \
82 func(has_64bit_reloc); \
83 func(has_aliasing_ppgtt); \
87 func(has_reset_engine); \
90 func(has_full_ppgtt); \
91 func(has_full_48bit_ppgtt); \
92 func(has_gmch_display); \
98 func(has_logical_ring_contexts); \
99 func(has_logical_ring_elsq); \
100 func(has_logical_ring_preemption); \
102 func(has_pooled_eu); \
106 func(has_resource_streamer); \
107 func(has_runtime_pm); \
109 func(unfenced_needs_alignment); \
110 func(cursor_needs_physical); \
111 func(hws_needs_physical); \
112 func(overlay_needs_physical); \
116 #define GEN_MAX_SLICES (6) /* CNL upper bound */
117 #define GEN_MAX_SUBSLICES (8) /* ICL upper bound */
119 struct sseu_dev_info {
121 u8 subslice_mask[GEN_MAX_SUBSLICES];
125 /* For each slice, which subslice(s) has(have) 7 EUs (bitfield)? */
128 u8 has_subslice_pg:1;
131 /* Topology fields */
134 u8 max_eus_per_subslice;
136 /* We don't have more than 8 eus per subslice at the moment and as we
137 * store eus enabled using bits, no need to multiply by eus per
140 u8 eu_mask[GEN_MAX_SLICES * GEN_MAX_SUBSLICES];
143 typedef u8 intel_ring_mask_t;
145 struct intel_device_info {
150 u8 gt; /* GT number, 0 if undefined */
152 intel_ring_mask_t ring_mask; /* Rings supported by the HW */
154 enum intel_platform platform;
157 unsigned int page_sizes; /* page sizes supported by the HW */
159 u32 display_mmio_offset;
162 u8 num_sprites[I915_MAX_PIPES];
163 u8 num_scalers[I915_MAX_PIPES];
165 #define DEFINE_FLAG(name) u8 name:1
166 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG);
168 u16 ddb_size; /* in blocks */
170 /* Register offsets for the various display pipes and transcoders */
171 int pipe_offsets[I915_MAX_TRANSCODERS];
172 int trans_offsets[I915_MAX_TRANSCODERS];
173 int palette_offsets[I915_MAX_PIPES];
174 int cursor_offsets[I915_MAX_PIPES];
176 /* Slice/subslice/EU info */
177 struct sseu_dev_info sseu;
179 u32 cs_timestamp_frequency_khz;
182 u16 degamma_lut_size;
187 struct intel_driver_caps {
188 unsigned int scheduler;
191 static inline unsigned int sseu_subslice_total(const struct sseu_dev_info *sseu)
193 unsigned int i, total = 0;
195 for (i = 0; i < ARRAY_SIZE(sseu->subslice_mask); i++)
196 total += hweight8(sseu->subslice_mask[i]);
201 static inline int sseu_eu_idx(const struct sseu_dev_info *sseu,
202 int slice, int subslice)
204 int subslice_stride = DIV_ROUND_UP(sseu->max_eus_per_subslice,
206 int slice_stride = sseu->max_subslices * subslice_stride;
208 return slice * slice_stride + subslice * subslice_stride;
211 static inline u16 sseu_get_eus(const struct sseu_dev_info *sseu,
212 int slice, int subslice)
214 int i, offset = sseu_eu_idx(sseu, slice, subslice);
218 i < DIV_ROUND_UP(sseu->max_eus_per_subslice, BITS_PER_BYTE); i++) {
219 eu_mask |= ((u16) sseu->eu_mask[offset + i]) <<
226 static inline void sseu_set_eus(struct sseu_dev_info *sseu,
227 int slice, int subslice, u16 eu_mask)
229 int i, offset = sseu_eu_idx(sseu, slice, subslice);
232 i < DIV_ROUND_UP(sseu->max_eus_per_subslice, BITS_PER_BYTE); i++) {
233 sseu->eu_mask[offset + i] =
234 (eu_mask >> (BITS_PER_BYTE * i)) & 0xff;
238 const char *intel_platform_name(enum intel_platform platform);
240 void intel_device_info_runtime_init(struct intel_device_info *info);
241 void intel_device_info_dump(const struct intel_device_info *info,
242 struct drm_printer *p);
243 void intel_device_info_dump_flags(const struct intel_device_info *info,
244 struct drm_printer *p);
245 void intel_device_info_dump_runtime(const struct intel_device_info *info,
246 struct drm_printer *p);
247 void intel_device_info_dump_topology(const struct sseu_dev_info *sseu,
248 struct drm_printer *p);
250 void intel_device_info_init_mmio(struct drm_i915_private *dev_priv);
252 void intel_driver_caps_print(const struct intel_driver_caps *caps,
253 struct drm_printer *p);