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 "gt/intel_engine_types.h"
31 #include "gt/intel_context_types.h"
32 #include "gt/intel_sseu.h"
34 #include "intel_display.h"
37 struct drm_i915_private;
39 /* Keep in gen based order, and chronological order within a gen */
41 INTEL_PLATFORM_UNINITIALIZED = 0,
85 * Subplatform bits share the same namespace per parent platform. In other words
86 * it is fine for the same bit to be used on multiple parent platforms.
89 #define INTEL_SUBPLATFORM_BITS (3)
91 /* HSW/BDW/SKL/KBL/CFL */
92 #define INTEL_SUBPLATFORM_ULT (0)
93 #define INTEL_SUBPLATFORM_ULX (1)
94 #define INTEL_SUBPLATFORM_AML (2)
97 #define INTEL_SUBPLATFORM_PORTF (0)
99 enum intel_ppgtt_type {
100 INTEL_PPGTT_NONE = I915_GEM_PPGTT_NONE,
101 INTEL_PPGTT_ALIASING = I915_GEM_PPGTT_ALIASING,
102 INTEL_PPGTT_FULL = I915_GEM_PPGTT_FULL,
105 #define DEV_INFO_FOR_EACH_FLAG(func) \
108 func(is_alpha_support); \
109 /* Keep has_* in alphabetical order */ \
110 func(has_64bit_reloc); \
111 func(gpu_reset_clobbers_display); \
112 func(has_reset_engine); \
113 func(has_fpga_dbg); \
118 func(has_logical_ring_contexts); \
119 func(has_logical_ring_elsq); \
120 func(has_logical_ring_preemption); \
121 func(has_pooled_eu); \
125 func(has_runtime_pm); \
127 func(has_coherent_ggtt); \
128 func(unfenced_needs_alignment); \
129 func(hws_needs_physical);
131 #define DEV_INFO_DISPLAY_FOR_EACH_FLAG(func) \
132 /* Keep in alphabetical order */ \
133 func(cursor_needs_physical); \
143 func(overlay_needs_physical); \
146 struct intel_device_info {
150 u8 gt; /* GT number, 0 if undefined */
151 intel_engine_mask_t engine_mask; /* Engines supported by the HW */
153 enum intel_platform platform;
155 enum intel_ppgtt_type ppgtt_type;
156 unsigned int ppgtt_size; /* log2, e.g. 31/32/48 bits */
158 unsigned int page_sizes; /* page sizes supported by the HW */
160 u32 display_mmio_offset;
164 #define DEFINE_FLAG(name) u8 name:1
165 DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG);
169 #define DEFINE_FLAG(name) u8 name:1
170 DEV_INFO_DISPLAY_FOR_EACH_FLAG(DEFINE_FLAG);
174 u16 ddb_size; /* in blocks */
176 /* Register offsets for the various display pipes and transcoders */
177 int pipe_offsets[I915_MAX_TRANSCODERS];
178 int trans_offsets[I915_MAX_TRANSCODERS];
179 int cursor_offsets[I915_MAX_PIPES];
182 u16 degamma_lut_size;
184 u32 degamma_lut_tests;
189 struct intel_runtime_info {
191 * Platform mask is used for optimizing or-ed IS_PLATFORM calls into
192 * into single runtime conditionals, and also to provide groundwork
193 * for future per platform, or per SKU build optimizations.
195 * Array can be extended when necessary if the corresponding
196 * BUILD_BUG_ON is hit.
198 u32 platform_mask[2];
202 u8 num_sprites[I915_MAX_PIPES];
203 u8 num_scalers[I915_MAX_PIPES];
207 /* Slice/subslice/EU info */
208 struct sseu_dev_info sseu;
210 u32 cs_timestamp_frequency_khz;
212 /* Media engine access to SFC per instance */
216 struct intel_driver_caps {
217 unsigned int scheduler;
218 bool has_logical_contexts:1;
221 static inline unsigned int sseu_subslice_total(const struct sseu_dev_info *sseu)
223 unsigned int i, total = 0;
225 for (i = 0; i < ARRAY_SIZE(sseu->subslice_mask); i++)
226 total += hweight8(sseu->subslice_mask[i]);
231 static inline int sseu_eu_idx(const struct sseu_dev_info *sseu,
232 int slice, int subslice)
234 int subslice_stride = DIV_ROUND_UP(sseu->max_eus_per_subslice,
236 int slice_stride = sseu->max_subslices * subslice_stride;
238 return slice * slice_stride + subslice * subslice_stride;
241 static inline u16 sseu_get_eus(const struct sseu_dev_info *sseu,
242 int slice, int subslice)
244 int i, offset = sseu_eu_idx(sseu, slice, subslice);
248 i < DIV_ROUND_UP(sseu->max_eus_per_subslice, BITS_PER_BYTE); i++) {
249 eu_mask |= ((u16) sseu->eu_mask[offset + i]) <<
256 static inline void sseu_set_eus(struct sseu_dev_info *sseu,
257 int slice, int subslice, u16 eu_mask)
259 int i, offset = sseu_eu_idx(sseu, slice, subslice);
262 i < DIV_ROUND_UP(sseu->max_eus_per_subslice, BITS_PER_BYTE); i++) {
263 sseu->eu_mask[offset + i] =
264 (eu_mask >> (BITS_PER_BYTE * i)) & 0xff;
268 const char *intel_platform_name(enum intel_platform platform);
270 void intel_device_info_subplatform_init(struct drm_i915_private *dev_priv);
271 void intel_device_info_runtime_init(struct drm_i915_private *dev_priv);
272 void intel_device_info_dump_flags(const struct intel_device_info *info,
273 struct drm_printer *p);
274 void intel_device_info_dump_runtime(const struct intel_runtime_info *info,
275 struct drm_printer *p);
276 void intel_device_info_dump_topology(const struct sseu_dev_info *sseu,
277 struct drm_printer *p);
279 void intel_device_info_init_mmio(struct drm_i915_private *dev_priv);
281 void intel_driver_caps_print(const struct intel_driver_caps *caps,
282 struct drm_printer *p);