/*
* Copyright ﾂｩ 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "gen_device_info.h"
#include "compiler/shader_enums.h"
#include "util/bitscan.h"
#include "util/macros.h"
#include <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 },
{ "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.
*/
int
gen_get_pci_device_id_override(void)
{
if (!issetugid()) {
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, \
.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,
.num_thread_per_eu = 7,
.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,
.num_thread_per_eu = 7,
.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,
.num_thread_per_eu = 7,
.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,
.num_thread_per_eu = 7,
.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, \
.num_thread_per_eu = 7
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,
.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,
.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,
.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 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);
}
}
}
void
gen_device_info_update_from_masks(struct gen_device_info *devinfo,
uint32_t slice_mask,
uint32_t subslice_mask,
uint32_t n_eus)
{
struct {
struct drm_i915_query_topology_info base;
} topology;
assert((slice_mask & 0xff) == slice_mask);
memset(&topology, 0, sizeof(topology));
topology.base.max_slices = util_last_bit(slice_mask);
topology.base.max_subslices = util_last_bit(subslice_mask);
topology.base.subslice_offset = DIV_ROUND_UP(topology.base.max_slices, 8);
topology.base.subslice_stride = DIV_ROUND_UP(topology.base.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.base.eu_offset = topology.base.subslice_offset +
DIV_ROUND_UP(topology.base.max_subslices, 8);
topology.base.eu_stride = DIV_ROUND_UP(num_eu_per_subslice, 8);
/* Set slice mask in topology */
for (int b = 0; b < topology.base.subslice_offset; b++)
topology.base.data[b] = (slice_mask >> (b * 8)) & 0xff;
for (int s = 0; s < topology.base.max_slices; s++) {
/* Set subslice mask in topology */
for (int b = 0; b < topology.base.subslice_stride; b++) {
int subslice_offset = topology.base.subslice_offset +
s * topology.base.subslice_stride + b;
topology.base.data[subslice_offset] = (subslice_mask >> (b * 8)) & 0xff;
}
/* Set eu mask in topology */
for (int ss = 0; ss < topology.base.max_subslices; ss++) {
for (int b = 0; b < topology.base.eu_stride; b++) {
int eu_offset = topology.base.eu_offset +
(s * topology.base.max_subslices + ss) * topology.base.eu_stride + b;
topology.base.data[eu_offset] = (eu_mask >> (b * 8)) & 0xff;
}
}
}
gen_device_info_update_from_topology(devinfo, &topology.base);
}
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));
}
void
gen_device_info_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 & (1UL << s)) == 0)
continue;
for (int b = 0; b < devinfo->subslice_slice_stride; b++) {
devinfo->num_subslices[s] +=
__builtin_popcount(devinfo->subslice_masks[b]);
}
n_subslices += devinfo->num_subslices[s];
}
assert(n_subslices > 0);
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);
}
bool
gen_get_device_info(int devid, struct gen_device_info *devinfo)
{
switch (devid) {
#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, "i965_dri.so does not support the 0x%x PCI ID.\n", devid);
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));
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;
}
}