/* * 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 #include #include #include #include #include #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" /** * 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) { 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 }, }; 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; } /** * Get the overridden PCI ID for the device. This is set with the * INTEL_DEVID_OVERRIDE environment variable. * * Returns -1 if the override is not set. */ static int get_pci_device_id_override(void) { if (geteuid() == getuid()) { const char *devid_override = getenv("INTEL_DEVID_OVERRIDE"); if (devid_override) { const int id = gen_device_name_to_pci_device_id(devid_override); return id >= 0 ? id : strtol(devid_override, NULL, 0); } } 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_types = 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 = { .size = 128, .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 = { .size = 256, .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 = { .size = 128, .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 = { .size = 128, .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 = { .size = 256, .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 = { .size = 512, .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_types = 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 = 8, .l3_banks = 2, .max_cs_threads = 42, .urb = { .size = 192, .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_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 = { .size = 384, .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 = { .size = 384, .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 = { .size = 192, .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 = { \ .size = 384, \ .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 = { \ .size = 192, \ .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 = { \ .size = 128, \ .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, .urb.size = 192, /* 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." */ .urb.size = 1008 / 3, .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, .urb.size = 192, .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." */ .urb.size = 1008 / 3, .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, .urb.size = 192, /* 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 = { \ .size = 256, \ .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_2x8 = { /* 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_3x8 = { /* GT1 */ GEN10_FEATURES(1, 1, subslices(3), 3), .is_cannonlake = true, .simulator_id = 15, }; static const struct gen_device_info gen_device_info_cnl_4x8 = { /* 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_5x8 = { /* 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_types = 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_8x8 = { GEN11_FEATURES(2, 1, subslices(8), 8), .urb = { .size = 1024, GEN11_URB_MIN_MAX_ENTRIES, }, .simulator_id = 19, }; static const struct gen_device_info gen_device_info_icl_6x8 = { GEN11_FEATURES(1, 1, subslices(6), 6), .urb = { .size = 768, GEN11_URB_MIN_MAX_ENTRIES, }, .simulator_id = 19, }; static const struct gen_device_info gen_device_info_icl_4x8 = { GEN11_FEATURES(1, 1, subslices(4), 6), .urb = { .size = 768, GEN11_URB_MIN_MAX_ENTRIES, }, .simulator_id = 19, }; static const struct gen_device_info gen_device_info_icl_1x8 = { GEN11_FEATURES(1, 1, subslices(1), 6), .urb = { .size = 768, GEN11_URB_MIN_MAX_ENTRIES, }, .simulator_id = 19, }; static const struct gen_device_info gen_device_info_ehl_4x8 = { GEN11_FEATURES(1, 1, subslices(4), 4), .urb = { .size = 512, .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, }, }, .disable_ccs_repack = true, .simulator_id = 28, }; /* FIXME: Verfiy below entries when more information is available for this SKU. */ static const struct gen_device_info gen_device_info_ehl_4x4 = { GEN11_FEATURES(1, 1, subslices(4), 4), .urb = { .size = 512, .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, }, }, .disable_ccs_repack = true, .num_eu_per_subslice = 4, .simulator_id = 28, }; /* FIXME: Verfiy below entries when more information is available for this SKU. */ static const struct gen_device_info gen_device_info_ehl_2x4 = { GEN11_FEATURES(1, 1, subslices(2), 4), .urb = { .size = 512, .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, }, }, .disable_ccs_repack = true, .num_eu_per_subslice =4, .simulator_id = 28, }; 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++; } } 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, name) \ case id: *devinfo = gen_device_info_##family; break; #include "pci_ids/i965_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: devinfo->max_wm_threads = 128 /* threads-per-PSD */ * devinfo->num_slices * 8; /* subslices per slice */ break; default: 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, name) case id: return name; #include "pci_ids/i965_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; } bool gen_get_device_info_from_fd(int fd, struct gen_device_info *devinfo) { int devid = get_pci_device_id_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)) return false; 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); } return true; }