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IABSD.fr/xenocara/lib/mesa/src/intel/tools/intel_dev_info.c

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  • Author : jsg
    Date : 2025-06-05 11:23:11
    Hash : 67d6f117
    Message : Import Mesa 25.0.7

  • lib/mesa/src/intel/tools/intel_dev_info.c
  • /*
     * Copyright © 2020 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 <getopt.h>
    #include <inttypes.h>
    #include <stdarg.h>
    #include <stdio.h>
    #include <stdlib.h>
    #include <string.h>
    
    #include <sys/types.h>
    #include <sys/stat.h>
    #include <fcntl.h>
    #include <unistd.h>
    
    #include "util/libdrm.h"
    
    #include "dev/intel_device_info.h"
    #include "dev/intel_device_info_serialize.h"
    #include "dev/intel_hwconfig.h"
    #include "compiler/brw_compiler.h"
    
    static int
    error(char *fmt, ...)
    {
       va_list ap;
       va_start(ap, fmt);
       vfprintf(stderr, fmt, ap);
       va_end(ap);
    
       return EXIT_FAILURE;
    }
    
    static void
    print_base_devinfo(const struct intel_device_info *devinfo)
    {
       fprintf(stdout, "devinfo struct size = %zu\n", sizeof(*devinfo));
    
       fprintf(stdout, "   name: %s\n", devinfo->name);
       fprintf(stdout, "   gen: %u\n", devinfo->ver);
       fprintf(stdout, "   PCI device id: 0x%x\n", devinfo->pci_device_id);
       fprintf(stdout, "   PCI domain: 0x%x\n", devinfo->pci_domain);
       fprintf(stdout, "   PCI bus: 0x%x\n", devinfo->pci_bus);
       fprintf(stdout, "   PCI dev: 0x%x\n", devinfo->pci_dev);
       fprintf(stdout, "   PCI function: 0x%x\n", devinfo->pci_func);
       fprintf(stdout, "   PCI revision id: 0x%x\n", devinfo->pci_revision_id);
       fprintf(stdout, "   revision: %u\n", devinfo->revision);
    
       const char *subslice_name = devinfo->ver >= 12 ? "dualsubslice" : "subslice";
       uint32_t n_s = 0, n_ss = 0, n_eus = 0;
       for (unsigned s = 0; s < devinfo->max_slices; s++) {
          n_s += (devinfo->slice_masks & (1u << s)) ? 1 : 0;
          for (unsigned ss = 0; ss < devinfo->max_subslices_per_slice; ss++) {
             fprintf(stdout, "   slice%u.%s%u: ", s, subslice_name, ss);
             if (intel_device_info_subslice_available(devinfo, s, ss)) {
                n_ss++;
                for (unsigned eu = 0; eu < devinfo->max_eus_per_subslice; eu++) {
                   n_eus += intel_device_info_eu_available(devinfo, s, ss, eu) ? 1 : 0;
                   fprintf(stdout, "%s", intel_device_info_eu_available(devinfo, s, ss, eu) ? "1" : "0");
                }
             } else {
                fprintf(stdout, "fused");
             }
             fprintf(stdout, "\n");
          }
       }
       for (uint32_t pp = 0; pp < ARRAY_SIZE(devinfo->ppipe_subslices); pp++) {
          fprintf(stdout, "   pixel pipe %02u: %u\n",
                  pp, devinfo->ppipe_subslices[pp]);
       }
    
       fprintf(stdout, "   slices: %u\n", n_s);
       fprintf(stdout, "   %s: %u\n", subslice_name, n_ss);
       fprintf(stdout, "   EUs: %u\n", n_eus);
       fprintf(stdout, "   EU threads: %u\n", n_eus * devinfo->num_thread_per_eu);
    
       fprintf(stdout, "   LLC: %u\n", devinfo->has_llc);
       fprintf(stdout, "   threads per EU: %u\n", devinfo->num_thread_per_eu);
       fprintf(stdout, "   L3 banks: %u\n", devinfo->l3_banks);
       fprintf(stdout, "   max VS  threads: %u\n", devinfo->max_vs_threads);
       fprintf(stdout, "   max TCS threads: %u\n", devinfo->max_tcs_threads);
       fprintf(stdout, "   max TES threads: %u\n", devinfo->max_tes_threads);
       fprintf(stdout, "   max GS  threads: %u\n", devinfo->max_gs_threads);
       fprintf(stdout, "   max WM  threads: %u\n", devinfo->max_wm_threads);
       fprintf(stdout, "   max CS  threads: %u\n", devinfo->max_cs_threads);
       fprintf(stdout, "   timestamp frequency: %" PRIu64 " / %.4f ns\n",
               devinfo->timestamp_frequency, 1000000000.0 / devinfo->timestamp_frequency);
    
       fprintf(stdout, "   URB size: %u\n", devinfo->urb.size);
       static const char *stage_names[4] = {
          "VS", "HS", "DS", "GS",
       };
       for (unsigned s = 0; s < ARRAY_SIZE(devinfo->urb.min_entries); s++) {
          fprintf(stdout, "      URB.entries[%s] = [%4u, %4u]\n",
                  stage_names[s],
                  devinfo->urb.min_entries[s],
                  devinfo->urb.max_entries[s]);
       }
    }
    
    static void
    print_regions_info(const struct intel_device_info *devinfo)
    {
       if (devinfo->mem.sram.mappable.size > 0 ||
           devinfo->mem.sram.unmappable.size > 0) {
          fprintf(stdout, "   sram:\n");
          if (devinfo->mem.use_class_instance) {
             fprintf(stdout, "      class: %d; instance: %d\n",
                     devinfo->mem.sram.mem.klass, devinfo->mem.sram.mem.instance);
          }
          fprintf(stdout, "      mappable: %" PRId64 "; ",
                  devinfo->mem.sram.mappable.size);
          fprintf(stdout, "free: %" PRId64 "\n",
                  devinfo->mem.sram.mappable.free);
          if (devinfo->mem.sram.unmappable.size > 0) {
             fprintf(stdout, "      unmappable: %" PRId64 "; ",
                     devinfo->mem.sram.unmappable.size);
             fprintf(stdout, "free: %" PRId64 "\n",
                     devinfo->mem.sram.unmappable.free);
          }
       }
    
       if (devinfo->mem.vram.mappable.size > 0 ||
           devinfo->mem.vram.unmappable.size > 0) {
          fprintf(stdout, "   vram:\n");
          if (devinfo->mem.use_class_instance) {
             fprintf(stdout, "      class: %d; instance: %d\n",
                     devinfo->mem.vram.mem.klass, devinfo->mem.vram.mem.instance);
          }
          fprintf(stdout, "      mappable: %" PRId64 "; ",
                  devinfo->mem.vram.mappable.size);
          fprintf(stdout, "free: %" PRId64 "\n",
                  devinfo->mem.vram.mappable.free);
          if (devinfo->mem.vram.unmappable.size > 0) {
             fprintf(stdout, "      unmappable: %" PRId64 "; ",
                     devinfo->mem.vram.unmappable.size);
             fprintf(stdout, "free: %" PRId64 "\n",
                     devinfo->mem.vram.unmappable.free);
          }
       }
    }
    
    #define INTEL_WA( X ) "WA_"#X
    static void
    print_wa_info(const struct intel_device_info *devinfo)
    {
       static const char* all_wa[] = { INTEL_ALL_WA };
       fprintf(stdout, "   required workarounds:\n");
       for (enum intel_workaround_id id = 0; id < INTEL_WA_NUM; ++id) {
          if (BITSET_TEST(devinfo->workarounds, id)) {
             fprintf(stdout, "      %s\n", all_wa[id]);
          }
       }
       fprintf(stdout, "\n");
    }
    #undef INTEL_WA
    
    int
    main(int argc, char *argv[])
    {
       drmDevicePtr devices[8];
       int max_devices, i;
       char c;
       bool help = false, print_hwconfig = false, all = false, print_workarounds = false, print_json = false;
       const char *platform = NULL;
       const struct option opts[] = {
          { "help",              no_argument,  (int *) &help,              true },
          { "platform",    required_argument,  NULL,                       false },
          { "hwconfig",          no_argument,  (int *) &print_hwconfig,    true },
          { "json",              no_argument,  (int *) &print_json,        true },
          { "workarounds",       no_argument,  (int *) &print_workarounds, true },
          { "all",               no_argument,  (int *) &all,               true },
       };
       while ((c = getopt_long(argc, argv, "hap:", opts, &i)) != -1) {
          switch (c) {
          case 'h':
             help = true;
             break;
          case 'a':
             all = true;
             break;
          case 'p':
             platform = optarg;
             break;
          default:
             break;
          }
       }
    
       if (help) {
          fprintf(stdout,
                  "Usage: intel_dev_info [OPTION]\n"
                  "Print device info for the current system.\n"
                  "      --help / h        display this help and exit\n"
                  "      --platform <name> print a given platform's info (skl, icl, tgl, etc...)\n"
                  "      --hwconfig        print the hwconfig table\n"
                  "      --json            print json representation of device info\n"
                  "      --workarounds     print the list of hardware workarounds for the system\n"
                  "      --all / -a        print all optional details\n");
          exit(0);
       }
    
       if (all) {
          print_workarounds = true;
          print_hwconfig = true;
       }
    
       if (platform) {
          int pci_id;
    
          if (strstr(platform, "0x") == platform)
             pci_id = strtol(platform, NULL, 16);
          else
             pci_id = intel_device_name_to_pci_device_id(platform);
    
          struct intel_device_info devinfo;
          if (!intel_get_device_info_from_pci_id(pci_id, &devinfo))
             return error("No platform found with name: %s", platform);
    
          print_base_devinfo(&devinfo);
          if (print_workarounds)
             print_wa_info(&devinfo);
       } else {
          max_devices = drmGetDevices2(0, devices, ARRAY_SIZE(devices));
          if (max_devices < 1)
             return error("Not device found");
    
          for (int i = 0; i < max_devices; i++) {
             struct intel_device_info devinfo;
             const char *path = devices[i]->nodes[DRM_NODE_RENDER];
             int fd = open(path, O_RDWR | O_CLOEXEC);
    
             if (fd < 0)
                continue;
    
             bool success = intel_get_device_info_from_fd(fd, &devinfo, -1, -1);
    
             if (!success) {
                close(fd);
                continue;
             }
    
             if (print_json) {
                JSON_Value *json = intel_device_info_dump_json(&devinfo);
    
                /* When available, add the compiler device sha, to allow
                 * deduplication of similar device info files.
                 */
                if (devinfo.ver >= 9) {
                   JSON_Object *obj = json_object(json);
                   char device_info_sha[41];
                   brw_device_sha1(device_info_sha, &devinfo);
                   json_object_set_string(obj, "shader_cache_sha1", device_info_sha);
                }
    
                char *pretty_string = json_serialize_to_string_pretty(json);
                printf("%s", pretty_string);
                json_free_serialized_string(pretty_string);
                json_value_free(json);
                close(fd);
                continue;
             }
    
             fprintf(stdout, "%s:\n", path);
    
             print_base_devinfo(&devinfo);
             print_regions_info(&devinfo);
             if (print_hwconfig)
                intel_get_and_print_hwconfig_table(fd, &devinfo);
             if (print_workarounds)
                print_wa_info(&devinfo);
    
             close(fd);
          }
       }
    
       return EXIT_SUCCESS;
    }