| /* |
| * Copyright © 2013 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| * IN THE SOFTWARE. |
| */ |
| |
| #include <assert.h> |
| #include <stdbool.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include "gen_device_info.h" |
| #include "compiler/shader_enums.h" |
| #include "intel/common/gen_gem.h" |
| #include "util/bitscan.h" |
| #include "util/macros.h" |
| |
| #include "drm-uapi/i915_drm.h" |
| |
| static const struct { |
| const char *name; |
| int pci_id; |
| } name_map[] = { |
| { "brw", 0x2a02 }, |
| { "g4x", 0x2a42 }, |
| { "ilk", 0x0042 }, |
| { "snb", 0x0126 }, |
| { "ivb", 0x016a }, |
| { "hsw", 0x0d2e }, |
| { "byt", 0x0f33 }, |
| { "bdw", 0x162e }, |
| { "chv", 0x22B3 }, |
| { "skl", 0x1912 }, |
| { "bxt", 0x5A85 }, |
| { "kbl", 0x5912 }, |
| { "aml", 0x591C }, |
| { "glk", 0x3185 }, |
| { "cfl", 0x3E9B }, |
| { "whl", 0x3EA1 }, |
| { "cml", 0x9b41 }, |
| { "cnl", 0x5a52 }, |
| { "icl", 0x8a52 }, |
| { "ehl", 0x4500 }, |
| { "jsl", 0x4E71 }, |
| { "tgl", 0x9a49 }, |
| { "rkl", 0x4c8a }, |
| { "dg1", 0x4905 }, |
| }; |
| |
| /** |
| * Get the PCI ID for the device name. |
| * |
| * Returns -1 if the device is not known. |
| */ |
| int |
| gen_device_name_to_pci_device_id(const char *name) |
| { |
| for (unsigned i = 0; i < ARRAY_SIZE(name_map); i++) { |
| if (!strcmp(name_map[i].name, name)) |
| return name_map[i].pci_id; |
| } |
| |
| return -1; |
| } |
| |
| static const struct gen_device_info gen_device_info_i965 = { |
| .gen = 4, |
| .has_negative_rhw_bug = true, |
| .num_slices = 1, |
| .num_subslices = { 1, }, |
| .num_eu_per_subslice = 8, |
| .num_thread_per_eu = 4, |
| .max_vs_threads = 16, |
| .max_gs_threads = 2, |
| .max_wm_threads = 8 * 4, |
| .urb = { |
| .size = 256, |
| }, |
| .timestamp_frequency = 12500000, |
| .simulator_id = -1, |
| }; |
| |
| static const struct gen_device_info gen_device_info_g4x = { |
| .gen = 4, |
| .has_pln = true, |
| .has_compr4 = true, |
| .has_surface_tile_offset = true, |
| .is_g4x = true, |
| .num_slices = 1, |
| .num_subslices = { 1, }, |
| .num_eu_per_subslice = 10, |
| .num_thread_per_eu = 5, |
| .max_vs_threads = 32, |
| .max_gs_threads = 2, |
| .max_wm_threads = 10 * 5, |
| .urb = { |
| .size = 384, |
| }, |
| .timestamp_frequency = 12500000, |
| .simulator_id = -1, |
| }; |
| |
| static const struct gen_device_info gen_device_info_ilk = { |
| .gen = 5, |
| .has_pln = true, |
| .has_compr4 = true, |
| .has_surface_tile_offset = true, |
| .num_slices = 1, |
| .num_subslices = { 1, }, |
| .num_eu_per_subslice = 12, |
| .num_thread_per_eu = 6, |
| .max_vs_threads = 72, |
| .max_gs_threads = 32, |
| .max_wm_threads = 12 * 6, |
| .urb = { |
| .size = 1024, |
| }, |
| .timestamp_frequency = 12500000, |
| .simulator_id = -1, |
| }; |
| |
| static const struct gen_device_info gen_device_info_snb_gt1 = { |
| .gen = 6, |
| .gt = 1, |
| .has_hiz_and_separate_stencil = true, |
| .has_llc = true, |
| .has_pln = true, |
| .has_surface_tile_offset = true, |
| .needs_unlit_centroid_workaround = true, |
| .num_slices = 1, |
| .num_subslices = { 1, }, |
| .num_eu_per_subslice = 6, |
| .num_thread_per_eu = 6, /* Not confirmed */ |
| .max_vs_threads = 24, |
| .max_gs_threads = 21, /* conservative; 24 if rendering disabled. */ |
| .max_wm_threads = 40, |
| .urb = { |
| .size = 32, |
| .min_entries = { |
| [MESA_SHADER_VERTEX] = 24, |
| }, |
| .max_entries = { |
| [MESA_SHADER_VERTEX] = 256, |
| [MESA_SHADER_GEOMETRY] = 256, |
| }, |
| }, |
| .timestamp_frequency = 12500000, |
| .simulator_id = -1, |
| }; |
| |
| static const struct gen_device_info gen_device_info_snb_gt2 = { |
| .gen = 6, |
| .gt = 2, |
| .has_hiz_and_separate_stencil = true, |
| .has_llc = true, |
| .has_pln = true, |
| .has_surface_tile_offset = true, |
| .needs_unlit_centroid_workaround = true, |
| .num_slices = 1, |
| .num_subslices = { 1, }, |
| .num_eu_per_subslice = 12, |
| .num_thread_per_eu = 6, /* Not confirmed */ |
| .max_vs_threads = 60, |
| .max_gs_threads = 60, |
| .max_wm_threads = 80, |
| .urb = { |
| .size = 64, |
| .min_entries = { |
| [MESA_SHADER_VERTEX] = 24, |
| }, |
| .max_entries = { |
| [MESA_SHADER_VERTEX] = 256, |
| [MESA_SHADER_GEOMETRY] = 256, |
| }, |
| }, |
| .timestamp_frequency = 12500000, |
| .simulator_id = -1, |
| }; |
| |
| #define GEN7_FEATURES \ |
| .gen = 7, \ |
| .has_hiz_and_separate_stencil = true, \ |
| .must_use_separate_stencil = true, \ |
| .has_llc = true, \ |
| .has_pln = true, \ |
| .has_64bit_float = true, \ |
| .has_surface_tile_offset = true, \ |
| .timestamp_frequency = 12500000 |
| |
| static const struct gen_device_info gen_device_info_ivb_gt1 = { |
| GEN7_FEATURES, .is_ivybridge = true, .gt = 1, |
| .num_slices = 1, |
| .num_subslices = { 1, }, |
| .num_eu_per_subslice = 6, |
| .num_thread_per_eu = 6, |
| .l3_banks = 2, |
| .max_vs_threads = 36, |
| .max_tcs_threads = 36, |
| .max_tes_threads = 36, |
| .max_gs_threads = 36, |
| .max_wm_threads = 48, |
| .max_cs_threads = 36, |
| .urb = { |
| .min_entries = { |
| [MESA_SHADER_VERTEX] = 32, |
| [MESA_SHADER_TESS_EVAL] = 10, |
| }, |
| .max_entries = { |
| [MESA_SHADER_VERTEX] = 512, |
| [MESA_SHADER_TESS_CTRL] = 32, |
| [MESA_SHADER_TESS_EVAL] = 288, |
| [MESA_SHADER_GEOMETRY] = 192, |
| }, |
| }, |
| .simulator_id = 7, |
| }; |
| |
| static const struct gen_device_info gen_device_info_ivb_gt2 = { |
| GEN7_FEATURES, .is_ivybridge = true, .gt = 2, |
| .num_slices = 1, |
| .num_subslices = { 1, }, |
| .num_eu_per_subslice = 12, |
| .num_thread_per_eu = 8, /* Not sure why this isn't a multiple of |
| * @max_wm_threads ... */ |
| .l3_banks = 4, |
| .max_vs_threads = 128, |
| .max_tcs_threads = 128, |
| .max_tes_threads = 128, |
| .max_gs_threads = 128, |
| .max_wm_threads = 172, |
| .max_cs_threads = 64, |
| .urb = { |
| .min_entries = { |
| [MESA_SHADER_VERTEX] = 32, |
| [MESA_SHADER_TESS_EVAL] = 10, |
| }, |
| .max_entries = { |
| [MESA_SHADER_VERTEX] = 704, |
| [MESA_SHADER_TESS_CTRL] = 64, |
| [MESA_SHADER_TESS_EVAL] = 448, |
| [MESA_SHADER_GEOMETRY] = 320, |
| }, |
| }, |
| .simulator_id = 7, |
| }; |
| |
| static const struct gen_device_info gen_device_info_byt = { |
| GEN7_FEATURES, .is_baytrail = true, .gt = 1, |
| .num_slices = 1, |
| .num_subslices = { 1, }, |
| .num_eu_per_subslice = 4, |
| .num_thread_per_eu = 8, |
| .l3_banks = 1, |
| .has_llc = false, |
| .max_vs_threads = 36, |
| .max_tcs_threads = 36, |
| .max_tes_threads = 36, |
| .max_gs_threads = 36, |
| .max_wm_threads = 48, |
| .max_cs_threads = 32, |
| .urb = { |
| .min_entries = { |
| [MESA_SHADER_VERTEX] = 32, |
| [MESA_SHADER_TESS_EVAL] = 10, |
| }, |
| .max_entries = { |
| [MESA_SHADER_VERTEX] = 512, |
| [MESA_SHADER_TESS_CTRL] = 32, |
| [MESA_SHADER_TESS_EVAL] = 288, |
| [MESA_SHADER_GEOMETRY] = 192, |
| }, |
| }, |
| .simulator_id = 10, |
| }; |
| |
| #define HSW_FEATURES \ |
| GEN7_FEATURES, \ |
| .is_haswell = true, \ |
| .supports_simd16_3src = true, \ |
| .has_resource_streamer = true |
| |
| static const struct gen_device_info gen_device_info_hsw_gt1 = { |
| HSW_FEATURES, .gt = 1, |
| .num_slices = 1, |
| .num_subslices = { 1, }, |
| .num_eu_per_subslice = 10, |
| .num_thread_per_eu = 7, |
| .l3_banks = 2, |
| .max_vs_threads = 70, |
| .max_tcs_threads = 70, |
| .max_tes_threads = 70, |
| .max_gs_threads = 70, |
| .max_wm_threads = 102, |
| .max_cs_threads = 70, |
| .urb = { |
| .min_entries = { |
| [MESA_SHADER_VERTEX] = 32, |
| [MESA_SHADER_TESS_EVAL] = 10, |
| }, |
| .max_entries = { |
| [MESA_SHADER_VERTEX] = 640, |
| [MESA_SHADER_TESS_CTRL] = 64, |
| [MESA_SHADER_TESS_EVAL] = 384, |
| [MESA_SHADER_GEOMETRY] = 256, |
| }, |
| }, |
| .simulator_id = 9, |
| }; |
| |
| static const struct gen_device_info gen_device_info_hsw_gt2 = { |
| HSW_FEATURES, .gt = 2, |
| .num_slices = 1, |
| .num_subslices = { 2, }, |
| .num_eu_per_subslice = 10, |
| .num_thread_per_eu = 7, |
| .l3_banks = 4, |
| .max_vs_threads = 280, |
| .max_tcs_threads = 256, |
| .max_tes_threads = 280, |
| .max_gs_threads = 256, |
| .max_wm_threads = 204, |
| .max_cs_threads = 70, |
| .urb = { |
| .min_entries = { |
| [MESA_SHADER_VERTEX] = 64, |
| [MESA_SHADER_TESS_EVAL] = 10, |
| }, |
| .max_entries = { |
| [MESA_SHADER_VERTEX] = 1664, |
| [MESA_SHADER_TESS_CTRL] = 128, |
| [MESA_SHADER_TESS_EVAL] = 960, |
| [MESA_SHADER_GEOMETRY] = 640, |
| }, |
| }, |
| .simulator_id = 9, |
| }; |
| |
| static const struct gen_device_info gen_device_info_hsw_gt3 = { |
| HSW_FEATURES, .gt = 3, |
| .num_slices = 2, |
| .num_subslices = { 2, }, |
| .num_eu_per_subslice = 10, |
| .num_thread_per_eu = 7, |
| .l3_banks = 8, |
| .max_vs_threads = 280, |
| .max_tcs_threads = 256, |
| .max_tes_threads = 280, |
| .max_gs_threads = 256, |
| .max_wm_threads = 408, |
| .max_cs_threads = 70, |
| .urb = { |
| .min_entries = { |
| [MESA_SHADER_VERTEX] = 64, |
| [MESA_SHADER_TESS_EVAL] = 10, |
| }, |
| .max_entries = { |
| [MESA_SHADER_VERTEX] = 1664, |
| [MESA_SHADER_TESS_CTRL] = 128, |
| [MESA_SHADER_TESS_EVAL] = 960, |
| [MESA_SHADER_GEOMETRY] = 640, |
| }, |
| }, |
| .simulator_id = 9, |
| }; |
| |
| /* It's unclear how well supported sampling from the hiz buffer is on GEN8, |
| * so keep things conservative for now and set has_sample_with_hiz = false. |
| */ |
| #define GEN8_FEATURES \ |
| .gen = 8, \ |
| .has_hiz_and_separate_stencil = true, \ |
| .has_resource_streamer = true, \ |
| .must_use_separate_stencil = true, \ |
| .has_llc = true, \ |
| .has_sample_with_hiz = false, \ |
| .has_pln = true, \ |
| .has_integer_dword_mul = true, \ |
| .has_64bit_float = true, \ |
| .has_64bit_int = true, \ |
| .supports_simd16_3src = true, \ |
| .has_surface_tile_offset = true, \ |
| .num_thread_per_eu = 7, \ |
| .max_vs_threads = 504, \ |
| .max_tcs_threads = 504, \ |
| .max_tes_threads = 504, \ |
| .max_gs_threads = 504, \ |
| .max_wm_threads = 384, \ |
| .timestamp_frequency = 12500000 |
| |
| static const struct gen_device_info gen_device_info_bdw_gt1 = { |
| GEN8_FEATURES, .gt = 1, |
| .is_broadwell = true, |
| .num_slices = 1, |
| .num_subslices = { 2, }, |
| .num_eu_per_subslice = 6, |
| .l3_banks = 2, |
| .max_cs_threads = 42, |
| .urb = { |
| .min_entries = { |
| [MESA_SHADER_VERTEX] = 64, |
| [MESA_SHADER_TESS_EVAL] = 34, |
| }, |
| .max_entries = { |
| [MESA_SHADER_VERTEX] = 2560, |
| [MESA_SHADER_TESS_CTRL] = 504, |
| [MESA_SHADER_TESS_EVAL] = 1536, |
| /* Reduced from 960, seems to be similar to the bug on Gen9 GT1. */ |
| [MESA_SHADER_GEOMETRY] = 690, |
| }, |
| }, |
| .simulator_id = 11, |
| }; |
| |
| static const struct gen_device_info gen_device_info_bdw_gt2 = { |
| GEN8_FEATURES, .gt = 2, |
| .is_broadwell = true, |
| .num_slices = 1, |
| .num_subslices = { 3, }, |
| .num_eu_per_subslice = 8, |
| .l3_banks = 4, |
| .max_cs_threads = 56, |
| .urb = { |
| .min_entries = { |
| [MESA_SHADER_VERTEX] = 64, |
| [MESA_SHADER_TESS_EVAL] = 34, |
| }, |
| .max_entries = { |
| [MESA_SHADER_VERTEX] = 2560, |
| [MESA_SHADER_TESS_CTRL] = 504, |
| [MESA_SHADER_TESS_EVAL] = 1536, |
| [MESA_SHADER_GEOMETRY] = 960, |
| }, |
| }, |
| .simulator_id = 11, |
| }; |
| |
| static const struct gen_device_info gen_device_info_bdw_gt3 = { |
| GEN8_FEATURES, .gt = 3, |
| .is_broadwell = true, |
| .num_slices = 2, |
| .num_subslices = { 3, 3, }, |
| .num_eu_per_subslice = 8, |
| .l3_banks = 8, |
| .max_cs_threads = 56, |
| .urb = { |
| .min_entries = { |
| [MESA_SHADER_VERTEX] = 64, |
| [MESA_SHADER_TESS_EVAL] = 34, |
| }, |
| .max_entries = { |
| [MESA_SHADER_VERTEX] = 2560, |
| [MESA_SHADER_TESS_CTRL] = 504, |
| [MESA_SHADER_TESS_EVAL] = 1536, |
| [MESA_SHADER_GEOMETRY] = 960, |
| }, |
| }, |
| .simulator_id = 11, |
| }; |
| |
| static const struct gen_device_info gen_device_info_chv = { |
| GEN8_FEATURES, .is_cherryview = 1, .gt = 1, |
| .has_llc = false, |
| .has_integer_dword_mul = false, |
| .num_slices = 1, |
| .num_subslices = { 2, }, |
| .num_eu_per_subslice = 8, |
| .l3_banks = 2, |
| .max_vs_threads = 80, |
| .max_tcs_threads = 80, |
| .max_tes_threads = 80, |
| .max_gs_threads = 80, |
| .max_wm_threads = 128, |
| .max_cs_threads = 6 * 7, |
| .urb = { |
| .min_entries = { |
| [MESA_SHADER_VERTEX] = 34, |
| [MESA_SHADER_TESS_EVAL] = 34, |
| }, |
| .max_entries = { |
| [MESA_SHADER_VERTEX] = 640, |
| [MESA_SHADER_TESS_CTRL] = 80, |
| [MESA_SHADER_TESS_EVAL] = 384, |
| [MESA_SHADER_GEOMETRY] = 256, |
| }, |
| }, |
| .simulator_id = 13, |
| }; |
| |
| #define GEN9_HW_INFO \ |
| .gen = 9, \ |
| .max_vs_threads = 336, \ |
| .max_gs_threads = 336, \ |
| .max_tcs_threads = 336, \ |
| .max_tes_threads = 336, \ |
| .max_cs_threads = 56, \ |
| .timestamp_frequency = 12000000, \ |
| .urb = { \ |
| .min_entries = { \ |
| [MESA_SHADER_VERTEX] = 64, \ |
| [MESA_SHADER_TESS_EVAL] = 34, \ |
| }, \ |
| .max_entries = { \ |
| [MESA_SHADER_VERTEX] = 1856, \ |
| [MESA_SHADER_TESS_CTRL] = 672, \ |
| [MESA_SHADER_TESS_EVAL] = 1120, \ |
| [MESA_SHADER_GEOMETRY] = 640, \ |
| }, \ |
| } |
| |
| #define GEN9_LP_FEATURES \ |
| GEN8_FEATURES, \ |
| GEN9_HW_INFO, \ |
| .has_integer_dword_mul = false, \ |
| .gt = 1, \ |
| .has_llc = false, \ |
| .has_sample_with_hiz = true, \ |
| .num_slices = 1, \ |
| .num_thread_per_eu = 6, \ |
| .max_vs_threads = 112, \ |
| .max_tcs_threads = 112, \ |
| .max_tes_threads = 112, \ |
| .max_gs_threads = 112, \ |
| .max_cs_threads = 6 * 6, \ |
| .timestamp_frequency = 19200000, \ |
| .urb = { \ |
| .min_entries = { \ |
| [MESA_SHADER_VERTEX] = 34, \ |
| [MESA_SHADER_TESS_EVAL] = 34, \ |
| }, \ |
| .max_entries = { \ |
| [MESA_SHADER_VERTEX] = 704, \ |
| [MESA_SHADER_TESS_CTRL] = 256, \ |
| [MESA_SHADER_TESS_EVAL] = 416, \ |
| [MESA_SHADER_GEOMETRY] = 256, \ |
| }, \ |
| } |
| |
| #define GEN9_LP_FEATURES_3X6 \ |
| GEN9_LP_FEATURES, \ |
| .num_subslices = { 3, }, \ |
| .num_eu_per_subslice = 6 |
| |
| #define GEN9_LP_FEATURES_2X6 \ |
| GEN9_LP_FEATURES, \ |
| .num_subslices = { 2, }, \ |
| .num_eu_per_subslice = 6, \ |
| .max_vs_threads = 56, \ |
| .max_tcs_threads = 56, \ |
| .max_tes_threads = 56, \ |
| .max_gs_threads = 56, \ |
| .max_cs_threads = 6 * 6, \ |
| .urb = { \ |
| .min_entries = { \ |
| [MESA_SHADER_VERTEX] = 34, \ |
| [MESA_SHADER_TESS_EVAL] = 34, \ |
| }, \ |
| .max_entries = { \ |
| [MESA_SHADER_VERTEX] = 352, \ |
| [MESA_SHADER_TESS_CTRL] = 128, \ |
| [MESA_SHADER_TESS_EVAL] = 208, \ |
| [MESA_SHADER_GEOMETRY] = 128, \ |
| }, \ |
| } |
| |
| #define GEN9_FEATURES \ |
| GEN8_FEATURES, \ |
| GEN9_HW_INFO, \ |
| .has_sample_with_hiz = true |
| |
| static const struct gen_device_info gen_device_info_skl_gt1 = { |
| GEN9_FEATURES, .gt = 1, |
| .is_skylake = true, |
| .num_slices = 1, |
| .num_subslices = { 2, }, |
| .num_eu_per_subslice = 6, |
| .l3_banks = 2, |
| /* GT1 seems to have a bug in the top of the pipe (VF/VS?) fixed functions |
| * leading to some vertices to go missing if we use too much URB. |
| */ |
| .urb.max_entries[MESA_SHADER_VERTEX] = 928, |
| .simulator_id = 12, |
| }; |
| |
| static const struct gen_device_info gen_device_info_skl_gt2 = { |
| GEN9_FEATURES, .gt = 2, |
| .is_skylake = true, |
| .num_slices = 1, |
| .num_subslices = { 3, }, |
| .num_eu_per_subslice = 8, |
| .l3_banks = 4, |
| .simulator_id = 12, |
| }; |
| |
| static const struct gen_device_info gen_device_info_skl_gt3 = { |
| GEN9_FEATURES, .gt = 3, |
| .is_skylake = true, |
| .num_slices = 2, |
| .num_subslices = { 3, 3, }, |
| .num_eu_per_subslice = 8, |
| .l3_banks = 8, |
| .simulator_id = 12, |
| }; |
| |
| static const struct gen_device_info gen_device_info_skl_gt4 = { |
| GEN9_FEATURES, .gt = 4, |
| .is_skylake = true, |
| .num_slices = 3, |
| .num_subslices = { 3, 3, 3, }, |
| .num_eu_per_subslice = 8, |
| .l3_banks = 12, |
| /* From the "L3 Allocation and Programming" documentation: |
| * |
| * "URB is limited to 1008KB due to programming restrictions. This is not a |
| * restriction of the L3 implementation, but of the FF and other clients. |
| * Therefore, in a GT4 implementation it is possible for the programmed |
| * allocation of the L3 data array to provide 3*384KB=1152KB for URB, but |
| * only 1008KB of this will be used." |
| */ |
| .simulator_id = 12, |
| }; |
| |
| static const struct gen_device_info gen_device_info_bxt = { |
| GEN9_LP_FEATURES_3X6, |
| .is_broxton = true, |
| .l3_banks = 2, |
| .simulator_id = 14, |
| }; |
| |
| static const struct gen_device_info gen_device_info_bxt_2x6 = { |
| GEN9_LP_FEATURES_2X6, |
| .is_broxton = true, |
| .l3_banks = 1, |
| .simulator_id = 14, |
| }; |
| /* |
| * Note: for all KBL SKUs, the PRM says SKL for GS entries, not SKL+. |
| * There's no KBL entry. Using the default SKL (GEN9) GS entries value. |
| */ |
| |
| static const struct gen_device_info gen_device_info_kbl_gt1 = { |
| GEN9_FEATURES, |
| .is_kabylake = true, |
| .gt = 1, |
| |
| .max_cs_threads = 7 * 6, |
| .num_slices = 1, |
| .num_subslices = { 2, }, |
| .num_eu_per_subslice = 6, |
| .l3_banks = 2, |
| /* GT1 seems to have a bug in the top of the pipe (VF/VS?) fixed functions |
| * leading to some vertices to go missing if we use too much URB. |
| */ |
| .urb.max_entries[MESA_SHADER_VERTEX] = 928, |
| .simulator_id = 16, |
| }; |
| |
| static const struct gen_device_info gen_device_info_kbl_gt1_5 = { |
| GEN9_FEATURES, |
| .is_kabylake = true, |
| .gt = 1, |
| |
| .max_cs_threads = 7 * 6, |
| .num_slices = 1, |
| .num_subslices = { 3, }, |
| .num_eu_per_subslice = 6, |
| .l3_banks = 4, |
| .simulator_id = 16, |
| }; |
| |
| static const struct gen_device_info gen_device_info_kbl_gt2 = { |
| GEN9_FEATURES, |
| .is_kabylake = true, |
| .gt = 2, |
| |
| .num_slices = 1, |
| .num_subslices = { 3, }, |
| .num_eu_per_subslice = 8, |
| .l3_banks = 4, |
| .simulator_id = 16, |
| }; |
| |
| static const struct gen_device_info gen_device_info_kbl_gt3 = { |
| GEN9_FEATURES, |
| .is_kabylake = true, |
| .gt = 3, |
| |
| .num_slices = 2, |
| .num_subslices = { 3, 3, }, |
| .num_eu_per_subslice = 8, |
| .l3_banks = 8, |
| .simulator_id = 16, |
| }; |
| |
| static const struct gen_device_info gen_device_info_kbl_gt4 = { |
| GEN9_FEATURES, |
| .is_kabylake = true, |
| .gt = 4, |
| |
| /* |
| * From the "L3 Allocation and Programming" documentation: |
| * |
| * "URB is limited to 1008KB due to programming restrictions. This |
| * is not a restriction of the L3 implementation, but of the FF and |
| * other clients. Therefore, in a GT4 implementation it is |
| * possible for the programmed allocation of the L3 data array to |
| * provide 3*384KB=1152KB for URB, but only 1008KB of this |
| * will be used." |
| */ |
| .num_slices = 3, |
| .num_subslices = { 3, 3, 3, }, |
| .num_eu_per_subslice = 8, |
| .l3_banks = 12, |
| .simulator_id = 16, |
| }; |
| |
| static const struct gen_device_info gen_device_info_glk = { |
| GEN9_LP_FEATURES_3X6, |
| .is_geminilake = true, |
| .l3_banks = 2, |
| .simulator_id = 17, |
| }; |
| |
| static const struct gen_device_info gen_device_info_glk_2x6 = { |
| GEN9_LP_FEATURES_2X6, |
| .is_geminilake = true, |
| .l3_banks = 2, |
| .simulator_id = 17, |
| }; |
| |
| static const struct gen_device_info gen_device_info_cfl_gt1 = { |
| GEN9_FEATURES, |
| .is_coffeelake = true, |
| .gt = 1, |
| |
| .num_slices = 1, |
| .num_subslices = { 2, }, |
| .num_eu_per_subslice = 6, |
| .l3_banks = 2, |
| /* GT1 seems to have a bug in the top of the pipe (VF/VS?) fixed functions |
| * leading to some vertices to go missing if we use too much URB. |
| */ |
| .urb.max_entries[MESA_SHADER_VERTEX] = 928, |
| .simulator_id = 24, |
| }; |
| static const struct gen_device_info gen_device_info_cfl_gt2 = { |
| GEN9_FEATURES, |
| .is_coffeelake = true, |
| .gt = 2, |
| |
| .num_slices = 1, |
| .num_subslices = { 3, }, |
| .num_eu_per_subslice = 8, |
| .l3_banks = 4, |
| .simulator_id = 24, |
| }; |
| |
| static const struct gen_device_info gen_device_info_cfl_gt3 = { |
| GEN9_FEATURES, |
| .is_coffeelake = true, |
| .gt = 3, |
| |
| .num_slices = 2, |
| .num_subslices = { 3, 3, }, |
| .num_eu_per_subslice = 8, |
| .l3_banks = 8, |
| .simulator_id = 24, |
| }; |
| |
| #define GEN10_HW_INFO \ |
| .gen = 10, \ |
| .num_thread_per_eu = 7, \ |
| .max_vs_threads = 728, \ |
| .max_gs_threads = 432, \ |
| .max_tcs_threads = 432, \ |
| .max_tes_threads = 624, \ |
| .max_cs_threads = 56, \ |
| .timestamp_frequency = 19200000, \ |
| .urb = { \ |
| .min_entries = { \ |
| [MESA_SHADER_VERTEX] = 64, \ |
| [MESA_SHADER_TESS_EVAL] = 34, \ |
| }, \ |
| .max_entries = { \ |
| [MESA_SHADER_VERTEX] = 3936, \ |
| [MESA_SHADER_TESS_CTRL] = 896, \ |
| [MESA_SHADER_TESS_EVAL] = 2064, \ |
| [MESA_SHADER_GEOMETRY] = 832, \ |
| }, \ |
| } |
| |
| #define subslices(args...) { args, } |
| |
| #define GEN10_FEATURES(_gt, _slices, _subslices, _l3) \ |
| GEN8_FEATURES, \ |
| GEN10_HW_INFO, \ |
| .has_sample_with_hiz = true, \ |
| .gt = _gt, \ |
| .num_slices = _slices, \ |
| .num_subslices = _subslices, \ |
| .num_eu_per_subslice = 8, \ |
| .l3_banks = _l3 |
| |
| static const struct gen_device_info gen_device_info_cnl_gt0_5 = { |
| /* GT0.5 */ |
| GEN10_FEATURES(1, 1, subslices(2), 2), |
| .is_cannonlake = true, |
| .simulator_id = 15, |
| }; |
| |
| static const struct gen_device_info gen_device_info_cnl_gt1 = { |
| /* GT1 */ |
| GEN10_FEATURES(1, 1, subslices(3), 3), |
| .is_cannonlake = true, |
| .simulator_id = 15, |
| }; |
| |
| static const struct gen_device_info gen_device_info_cnl_gt1_5 = { |
| /* GT 1.5 */ |
| GEN10_FEATURES(1, 2, subslices(2, 2), 6), |
| .is_cannonlake = true, |
| .simulator_id = 15, |
| }; |
| |
| static const struct gen_device_info gen_device_info_cnl_gt2 = { |
| /* GT2 */ |
| GEN10_FEATURES(2, 2, subslices(3, 2), 6), |
| .is_cannonlake = true, |
| .simulator_id = 15, |
| }; |
| |
| #define GEN11_HW_INFO \ |
| .gen = 11, \ |
| .has_pln = false, \ |
| .max_vs_threads = 364, \ |
| .max_gs_threads = 224, \ |
| .max_tcs_threads = 224, \ |
| .max_tes_threads = 364, \ |
| .max_cs_threads = 56 |
| |
| #define GEN11_FEATURES(_gt, _slices, _subslices, _l3) \ |
| GEN8_FEATURES, \ |
| GEN11_HW_INFO, \ |
| .has_64bit_float = false, \ |
| .has_64bit_int = false, \ |
| .has_integer_dword_mul = false, \ |
| .has_sample_with_hiz = false, \ |
| .gt = _gt, .num_slices = _slices, .l3_banks = _l3, \ |
| .num_subslices = _subslices, \ |
| .num_eu_per_subslice = 8 |
| |
| #define GEN11_URB_MIN_MAX_ENTRIES \ |
| .min_entries = { \ |
| [MESA_SHADER_VERTEX] = 64, \ |
| [MESA_SHADER_TESS_EVAL] = 34, \ |
| }, \ |
| .max_entries = { \ |
| [MESA_SHADER_VERTEX] = 2384, \ |
| [MESA_SHADER_TESS_CTRL] = 1032, \ |
| [MESA_SHADER_TESS_EVAL] = 2384, \ |
| [MESA_SHADER_GEOMETRY] = 1032, \ |
| } |
| |
| static const struct gen_device_info gen_device_info_icl_gt2 = { |
| GEN11_FEATURES(2, 1, subslices(8), 8), |
| .urb = { |
| GEN11_URB_MIN_MAX_ENTRIES, |
| }, |
| .simulator_id = 19, |
| }; |
| |
| static const struct gen_device_info gen_device_info_icl_gt1_5 = { |
| GEN11_FEATURES(1, 1, subslices(6), 6), |
| .urb = { |
| GEN11_URB_MIN_MAX_ENTRIES, |
| }, |
| .simulator_id = 19, |
| }; |
| |
| static const struct gen_device_info gen_device_info_icl_gt1 = { |
| GEN11_FEATURES(1, 1, subslices(4), 6), |
| .urb = { |
| GEN11_URB_MIN_MAX_ENTRIES, |
| }, |
| .simulator_id = 19, |
| }; |
| |
| static const struct gen_device_info gen_device_info_icl_gt0_5 = { |
| GEN11_FEATURES(1, 1, subslices(1), 6), |
| .urb = { |
| GEN11_URB_MIN_MAX_ENTRIES, |
| }, |
| .simulator_id = 19, |
| }; |
| |
| #define GEN11_LP_FEATURES \ |
| .is_elkhartlake = true, \ |
| .urb = { \ |
| GEN11_URB_MIN_MAX_ENTRIES, \ |
| }, \ |
| .disable_ccs_repack = true, \ |
| .simulator_id = 28 |
| |
| static const struct gen_device_info gen_device_info_ehl_7 = { |
| GEN11_FEATURES(1, 1, subslices(4), 4), |
| GEN11_LP_FEATURES, |
| }; |
| |
| static const struct gen_device_info gen_device_info_ehl_6 = { |
| GEN11_FEATURES(1, 1, subslices(4), 4), |
| GEN11_LP_FEATURES, |
| .num_eu_per_subslice = 6, |
| }; |
| |
| static const struct gen_device_info gen_device_info_ehl_5 = { |
| GEN11_FEATURES(1, 1, subslices(4), 4), |
| GEN11_LP_FEATURES, |
| .num_eu_per_subslice = 4, |
| }; |
| |
| static const struct gen_device_info gen_device_info_ehl_4 = { |
| GEN11_FEATURES(1, 1, subslices(2), 4), |
| GEN11_LP_FEATURES, |
| .num_eu_per_subslice =4, |
| }; |
| |
| #define GEN12_URB_MIN_MAX_ENTRIES \ |
| .min_entries = { \ |
| [MESA_SHADER_VERTEX] = 64, \ |
| [MESA_SHADER_TESS_EVAL] = 34, \ |
| }, \ |
| .max_entries = { \ |
| [MESA_SHADER_VERTEX] = 3576, \ |
| [MESA_SHADER_TESS_CTRL] = 1548, \ |
| [MESA_SHADER_TESS_EVAL] = 3576, \ |
| [MESA_SHADER_GEOMETRY] = 1548, \ |
| } |
| |
| #define GEN12_HW_INFO \ |
| .gen = 12, \ |
| .has_pln = false, \ |
| .has_sample_with_hiz = false, \ |
| .has_aux_map = true, \ |
| .max_vs_threads = 546, \ |
| .max_gs_threads = 336, \ |
| .max_tcs_threads = 336, \ |
| .max_tes_threads = 546, \ |
| .max_cs_threads = 112, /* threads per DSS */ \ |
| .urb = { \ |
| GEN12_URB_MIN_MAX_ENTRIES, \ |
| } |
| |
| #define GEN12_FEATURES(_gt, _slices, _l3) \ |
| GEN8_FEATURES, \ |
| GEN12_HW_INFO, \ |
| .has_64bit_float = false, \ |
| .has_64bit_int = false, \ |
| .has_integer_dword_mul = false, \ |
| .gt = _gt, .num_slices = _slices, .l3_banks = _l3, \ |
| .simulator_id = 22, \ |
| .num_eu_per_subslice = 16 |
| |
| #define dual_subslices(args...) { args, } |
| |
| #define GEN12_GT05_FEATURES \ |
| GEN12_FEATURES(1, 1, 4), \ |
| .num_subslices = dual_subslices(1) |
| |
| #define GEN12_GT_FEATURES(_gt) \ |
| GEN12_FEATURES(_gt, 1, _gt == 1 ? 4 : 8), \ |
| .num_subslices = dual_subslices(_gt == 1 ? 2 : 6) |
| |
| static const struct gen_device_info gen_device_info_tgl_gt1 = { |
| GEN12_GT_FEATURES(1), |
| }; |
| |
| static const struct gen_device_info gen_device_info_tgl_gt2 = { |
| GEN12_GT_FEATURES(2), |
| }; |
| |
| static const struct gen_device_info gen_device_info_rkl_gt05 = { |
| GEN12_GT05_FEATURES, |
| }; |
| |
| static const struct gen_device_info gen_device_info_rkl_gt1 = { |
| GEN12_GT_FEATURES(1), |
| }; |
| |
| #define GEN12_DG1_FEATURES \ |
| GEN12_GT_FEATURES(2), \ |
| .is_dg1 = true, \ |
| .has_llc = false, \ |
| .urb.size = 768, \ |
| .simulator_id = 30 |
| |
| UNUSED static const struct gen_device_info gen_device_info_dg1 = { |
| GEN12_DG1_FEATURES, |
| }; |
| |
| static void |
| gen_device_info_set_eu_mask(struct gen_device_info *devinfo, |
| unsigned slice, |
| unsigned subslice, |
| unsigned eu_mask) |
| { |
| unsigned subslice_offset = slice * devinfo->eu_slice_stride + |
| subslice * devinfo->eu_subslice_stride; |
| |
| for (unsigned b_eu = 0; b_eu < devinfo->eu_subslice_stride; b_eu++) { |
| devinfo->eu_masks[subslice_offset + b_eu] = |
| (((1U << devinfo->num_eu_per_subslice) - 1) >> (b_eu * 8)) & 0xff; |
| } |
| } |
| |
| /* Generate slice/subslice/eu masks from number of |
| * slices/subslices/eu_per_subslices in the per generation/gt gen_device_info |
| * structure. |
| * |
| * These can be overridden with values reported by the kernel either from |
| * getparam SLICE_MASK/SUBSLICE_MASK values or from the kernel version 4.17+ |
| * through the i915 query uapi. |
| */ |
| static void |
| fill_masks(struct gen_device_info *devinfo) |
| { |
| devinfo->slice_masks = (1U << devinfo->num_slices) - 1; |
| |
| /* Subslice masks */ |
| unsigned max_subslices = 0; |
| for (int s = 0; s < devinfo->num_slices; s++) |
| max_subslices = MAX2(devinfo->num_subslices[s], max_subslices); |
| devinfo->subslice_slice_stride = DIV_ROUND_UP(max_subslices, 8); |
| |
| for (int s = 0; s < devinfo->num_slices; s++) { |
| devinfo->subslice_masks[s * devinfo->subslice_slice_stride] = |
| (1U << devinfo->num_subslices[s]) - 1; |
| } |
| |
| /* EU masks */ |
| devinfo->eu_subslice_stride = DIV_ROUND_UP(devinfo->num_eu_per_subslice, 8); |
| devinfo->eu_slice_stride = max_subslices * devinfo->eu_subslice_stride; |
| |
| for (int s = 0; s < devinfo->num_slices; s++) { |
| for (int ss = 0; ss < devinfo->num_subslices[s]; ss++) { |
| gen_device_info_set_eu_mask(devinfo, s, ss, |
| (1U << devinfo->num_eu_per_subslice) - 1); |
| } |
| } |
| } |
| |
| static void |
| reset_masks(struct gen_device_info *devinfo) |
| { |
| devinfo->subslice_slice_stride = 0; |
| devinfo->eu_subslice_stride = 0; |
| devinfo->eu_slice_stride = 0; |
| |
| devinfo->num_slices = 0; |
| devinfo->num_eu_per_subslice = 0; |
| memset(devinfo->num_subslices, 0, sizeof(devinfo->num_subslices)); |
| |
| memset(&devinfo->slice_masks, 0, sizeof(devinfo->slice_masks)); |
| memset(devinfo->subslice_masks, 0, sizeof(devinfo->subslice_masks)); |
| memset(devinfo->eu_masks, 0, sizeof(devinfo->eu_masks)); |
| memset(devinfo->ppipe_subslices, 0, sizeof(devinfo->ppipe_subslices)); |
| } |
| |
| static void |
| update_from_topology(struct gen_device_info *devinfo, |
| const struct drm_i915_query_topology_info *topology) |
| { |
| reset_masks(devinfo); |
| |
| devinfo->subslice_slice_stride = topology->subslice_stride; |
| |
| devinfo->eu_subslice_stride = DIV_ROUND_UP(topology->max_eus_per_subslice, 8); |
| devinfo->eu_slice_stride = topology->max_subslices * devinfo->eu_subslice_stride; |
| |
| assert(sizeof(devinfo->slice_masks) >= DIV_ROUND_UP(topology->max_slices, 8)); |
| memcpy(&devinfo->slice_masks, topology->data, DIV_ROUND_UP(topology->max_slices, 8)); |
| devinfo->num_slices = __builtin_popcount(devinfo->slice_masks); |
| |
| uint32_t subslice_mask_len = |
| topology->max_slices * topology->subslice_stride; |
| assert(sizeof(devinfo->subslice_masks) >= subslice_mask_len); |
| memcpy(devinfo->subslice_masks, &topology->data[topology->subslice_offset], |
| subslice_mask_len); |
| |
| uint32_t n_subslices = 0; |
| for (int s = 0; s < topology->max_slices; s++) { |
| if ((devinfo->slice_masks & (1 << s)) == 0) |
| continue; |
| |
| for (int b = 0; b < devinfo->subslice_slice_stride; b++) { |
| devinfo->num_subslices[s] += |
| __builtin_popcount(devinfo->subslice_masks[s * devinfo->subslice_slice_stride + b]); |
| } |
| n_subslices += devinfo->num_subslices[s]; |
| } |
| assert(n_subslices > 0); |
| |
| if (devinfo->gen == 11) { |
| /* On ICL we only have one slice */ |
| assert(devinfo->slice_masks == 1); |
| |
| /* Count the number of subslices on each pixel pipe. Assume that |
| * subslices 0-3 are on pixel pipe 0, and 4-7 are on pixel pipe 1. |
| */ |
| unsigned subslices = devinfo->subslice_masks[0]; |
| unsigned ss = 0; |
| while (subslices > 0) { |
| if (subslices & 1) |
| devinfo->ppipe_subslices[ss >= 4 ? 1 : 0] += 1; |
| subslices >>= 1; |
| ss++; |
| } |
| } |
| |
| if (devinfo->gen == 12 && devinfo->num_slices == 1) { |
| if (n_subslices >= 6) { |
| assert(n_subslices == 6); |
| devinfo->l3_banks = 8; |
| } else if (n_subslices > 2) { |
| devinfo->l3_banks = 6; |
| } else { |
| devinfo->l3_banks = 4; |
| } |
| } |
| |
| uint32_t eu_mask_len = |
| topology->eu_stride * topology->max_subslices * topology->max_slices; |
| assert(sizeof(devinfo->eu_masks) >= eu_mask_len); |
| memcpy(devinfo->eu_masks, &topology->data[topology->eu_offset], eu_mask_len); |
| |
| uint32_t n_eus = 0; |
| for (int b = 0; b < eu_mask_len; b++) |
| n_eus += __builtin_popcount(devinfo->eu_masks[b]); |
| |
| devinfo->num_eu_per_subslice = DIV_ROUND_UP(n_eus, n_subslices); |
| } |
| |
| static bool |
| update_from_masks(struct gen_device_info *devinfo, uint32_t slice_mask, |
| uint32_t subslice_mask, uint32_t n_eus) |
| { |
| struct drm_i915_query_topology_info *topology; |
| |
| assert((slice_mask & 0xff) == slice_mask); |
| |
| size_t data_length = 100; |
| |
| topology = calloc(1, sizeof(*topology) + data_length); |
| if (!topology) |
| return false; |
| |
| topology->max_slices = util_last_bit(slice_mask); |
| topology->max_subslices = util_last_bit(subslice_mask); |
| |
| topology->subslice_offset = DIV_ROUND_UP(topology->max_slices, 8); |
| topology->subslice_stride = DIV_ROUND_UP(topology->max_subslices, 8); |
| |
| uint32_t n_subslices = __builtin_popcount(slice_mask) * |
| __builtin_popcount(subslice_mask); |
| uint32_t num_eu_per_subslice = DIV_ROUND_UP(n_eus, n_subslices); |
| uint32_t eu_mask = (1U << num_eu_per_subslice) - 1; |
| |
| topology->eu_offset = topology->subslice_offset + |
| DIV_ROUND_UP(topology->max_subslices, 8); |
| topology->eu_stride = DIV_ROUND_UP(num_eu_per_subslice, 8); |
| |
| /* Set slice mask in topology */ |
| for (int b = 0; b < topology->subslice_offset; b++) |
| topology->data[b] = (slice_mask >> (b * 8)) & 0xff; |
| |
| for (int s = 0; s < topology->max_slices; s++) { |
| |
| /* Set subslice mask in topology */ |
| for (int b = 0; b < topology->subslice_stride; b++) { |
| int subslice_offset = topology->subslice_offset + |
| s * topology->subslice_stride + b; |
| |
| topology->data[subslice_offset] = (subslice_mask >> (b * 8)) & 0xff; |
| } |
| |
| /* Set eu mask in topology */ |
| for (int ss = 0; ss < topology->max_subslices; ss++) { |
| for (int b = 0; b < topology->eu_stride; b++) { |
| int eu_offset = topology->eu_offset + |
| (s * topology->max_subslices + ss) * topology->eu_stride + b; |
| |
| topology->data[eu_offset] = (eu_mask >> (b * 8)) & 0xff; |
| } |
| } |
| } |
| |
| update_from_topology(devinfo, topology); |
| free(topology); |
| |
| return true; |
| } |
| |
| static bool |
| getparam(int fd, uint32_t param, int *value) |
| { |
| int tmp; |
| |
| struct drm_i915_getparam gp = { |
| .param = param, |
| .value = &tmp, |
| }; |
| |
| int ret = gen_ioctl(fd, DRM_IOCTL_I915_GETPARAM, &gp); |
| if (ret != 0) |
| return false; |
| |
| *value = tmp; |
| return true; |
| } |
| |
| bool |
| gen_get_device_info_from_pci_id(int pci_id, |
| struct gen_device_info *devinfo) |
| { |
| switch (pci_id) { |
| #undef CHIPSET |
| #define CHIPSET(id, family, fam_str, name) \ |
| case id: *devinfo = gen_device_info_##family; break; |
| #include "pci_ids/i965_pci_ids.h" |
| #include "pci_ids/iris_pci_ids.h" |
| default: |
| fprintf(stderr, "Driver does not support the 0x%x PCI ID.\n", pci_id); |
| return false; |
| } |
| |
| fill_masks(devinfo); |
| |
| /* From the Skylake PRM, 3DSTATE_PS::Scratch Space Base Pointer: |
| * |
| * "Scratch Space per slice is computed based on 4 sub-slices. SW must |
| * allocate scratch space enough so that each slice has 4 slices allowed." |
| * |
| * The equivalent internal documentation says that this programming note |
| * applies to all Gen9+ platforms. |
| * |
| * The hardware typically calculates the scratch space pointer by taking |
| * the base address, and adding per-thread-scratch-space * thread ID. |
| * Extra padding can be necessary depending how the thread IDs are |
| * calculated for a particular shader stage. |
| */ |
| |
| switch(devinfo->gen) { |
| case 9: |
| case 10: |
| devinfo->max_wm_threads = 64 /* threads-per-PSD */ |
| * devinfo->num_slices |
| * 4; /* effective subslices per slice */ |
| break; |
| case 11: |
| case 12: |
| devinfo->max_wm_threads = 128 /* threads-per-PSD */ |
| * devinfo->num_slices |
| * 8; /* subslices per slice */ |
| break; |
| default: |
| assert(devinfo->gen < 9); |
| break; |
| } |
| |
| assert(devinfo->num_slices <= ARRAY_SIZE(devinfo->num_subslices)); |
| |
| devinfo->chipset_id = pci_id; |
| return true; |
| } |
| |
| const char * |
| gen_get_device_name(int devid) |
| { |
| switch (devid) { |
| #undef CHIPSET |
| #define CHIPSET(id, family, fam_str, name) case id: return name " (" fam_str ")"; break; |
| #include "pci_ids/i965_pci_ids.h" |
| #include "pci_ids/iris_pci_ids.h" |
| default: |
| return NULL; |
| } |
| } |
| |
| /** |
| * for gen8/gen9, SLICE_MASK/SUBSLICE_MASK can be used to compute the topology |
| * (kernel 4.13+) |
| */ |
| static bool |
| getparam_topology(struct gen_device_info *devinfo, int fd) |
| { |
| int slice_mask = 0; |
| if (!getparam(fd, I915_PARAM_SLICE_MASK, &slice_mask)) |
| return false; |
| |
| int n_eus; |
| if (!getparam(fd, I915_PARAM_EU_TOTAL, &n_eus)) |
| return false; |
| |
| int subslice_mask = 0; |
| if (!getparam(fd, I915_PARAM_SUBSLICE_MASK, &subslice_mask)) |
| return false; |
| |
| return update_from_masks(devinfo, slice_mask, subslice_mask, n_eus); |
| } |
| |
| /** |
| * preferred API for updating the topology in devinfo (kernel 4.17+) |
| */ |
| static bool |
| query_topology(struct gen_device_info *devinfo, int fd) |
| { |
| struct drm_i915_query_item item = { |
| .query_id = DRM_I915_QUERY_TOPOLOGY_INFO, |
| }; |
| struct drm_i915_query query = { |
| .num_items = 1, |
| .items_ptr = (uintptr_t) &item, |
| }; |
| |
| if (gen_ioctl(fd, DRM_IOCTL_I915_QUERY, &query)) |
| return false; |
| |
| if (item.length < 0) |
| return false; |
| |
| struct drm_i915_query_topology_info *topo_info = |
| (struct drm_i915_query_topology_info *) calloc(1, item.length); |
| item.data_ptr = (uintptr_t) topo_info; |
| |
| if (gen_ioctl(fd, DRM_IOCTL_I915_QUERY, &query) || |
| item.length <= 0) |
| return false; |
| |
| update_from_topology(devinfo, topo_info); |
| |
| free(topo_info); |
| |
| return true; |
| |
| } |
| |
| int |
| gen_get_aperture_size(int fd, uint64_t *size) |
| { |
| struct drm_i915_gem_get_aperture aperture = { 0 }; |
| |
| int ret = gen_ioctl(fd, DRM_IOCTL_I915_GEM_GET_APERTURE, &aperture); |
| if (ret == 0 && size) |
| *size = aperture.aper_size; |
| |
| return ret; |
| } |
| |
| static bool |
| gen_has_get_tiling(int fd) |
| { |
| int ret; |
| |
| struct drm_i915_gem_create gem_create = { |
| .size = 4096, |
| }; |
| |
| if (gen_ioctl(fd, DRM_IOCTL_I915_GEM_CREATE, &gem_create)) { |
| unreachable("Failed to create GEM BO"); |
| return false; |
| } |
| |
| struct drm_i915_gem_get_tiling get_tiling = { |
| .handle = gem_create.handle, |
| }; |
| ret = gen_ioctl(fd, DRM_IOCTL_I915_GEM_SET_TILING, &get_tiling); |
| |
| struct drm_gem_close close = { |
| .handle = gem_create.handle, |
| }; |
| gen_ioctl(fd, DRM_IOCTL_GEM_CLOSE, &close); |
| |
| return ret == 0; |
| } |
| |
| bool |
| gen_get_device_info_from_fd(int fd, struct gen_device_info *devinfo) |
| { |
| int devid = 0; |
| |
| const char *devid_override = getenv("INTEL_DEVID_OVERRIDE"); |
| if (devid_override && strlen(devid_override) > 0) { |
| if (geteuid() == getuid()) { |
| devid = gen_device_name_to_pci_device_id(devid_override); |
| /* Fallback to PCI ID. */ |
| if (devid <= 0) |
| devid = strtol(devid_override, NULL, 0); |
| if (devid <= 0) { |
| fprintf(stderr, "Invalid INTEL_DEVID_OVERRIDE=\"%s\". " |
| "Use a valid numeric PCI ID or one of the supported " |
| "platform names: %s", devid_override, name_map[0].name); |
| for (unsigned i = 1; i < ARRAY_SIZE(name_map); i++) |
| fprintf(stderr, ", %s", name_map[i].name); |
| fprintf(stderr, "\n"); |
| return false; |
| } |
| } else { |
| fprintf(stderr, "Ignoring INTEL_DEVID_OVERRIDE=\"%s\" because " |
| "real and effective user ID don't match.\n", devid_override); |
| } |
| } |
| |
| if (devid > 0) { |
| if (!gen_get_device_info_from_pci_id(devid, devinfo)) |
| return false; |
| devinfo->no_hw = true; |
| } else { |
| /* query the device id */ |
| if (!getparam(fd, I915_PARAM_CHIPSET_ID, &devid)) |
| return false; |
| if (!gen_get_device_info_from_pci_id(devid, devinfo)) |
| return false; |
| devinfo->no_hw = false; |
| } |
| |
| /* remaining initializion queries the kernel for device info */ |
| if (devinfo->no_hw) |
| return true; |
| |
| int timestamp_frequency; |
| if (getparam(fd, I915_PARAM_CS_TIMESTAMP_FREQUENCY, |
| ×tamp_frequency)) |
| devinfo->timestamp_frequency = timestamp_frequency; |
| else if (devinfo->gen >= 10) |
| /* gen10 and later requires the timestamp_frequency to be updated */ |
| return false; |
| |
| if (!getparam(fd, I915_PARAM_REVISION, &devinfo->revision)) |
| devinfo->revision = 0; |
| |
| if (!query_topology(devinfo, fd)) { |
| if (devinfo->gen >= 10) { |
| /* topology uAPI required for CNL+ (kernel 4.17+) */ |
| return false; |
| } |
| |
| /* else use the kernel 4.13+ api for gen8+. For older kernels, topology |
| * will be wrong, affecting GPU metrics. In this case, fail silently. |
| */ |
| getparam_topology(devinfo, fd); |
| } |
| |
| gen_get_aperture_size(fd, &devinfo->aperture_bytes); |
| devinfo->has_tiling_uapi = gen_has_get_tiling(fd); |
| |
| return true; |
| } |
