drivers/accel/ivpu/ivpu_coredump.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (C) 2020-2024 Intel Corporation
   4  */
   5
   6 #include <linux/devcoredump.h>
   7 #include <linux/firmware.h>
   8
   9 #include "ivpu_coredump.h"
  10 #include "ivpu_fw.h"
  11 #include "ivpu_gem.h"
  12 #include "vpu_boot_api.h"
  13
  14 #define CRASH_DUMP_HEADER "Intel NPU crash dump"
  15 #define CRASH_DUMP_HEADERS_SIZE SZ_4K
  16
  17 void ivpu_dev_coredump(struct ivpu_device *vdev)
  18 {
  19         struct drm_print_iterator pi = {};
  20         struct drm_printer p;
  21         size_t coredump_size;
  22         char *coredump;
  23
  24         coredump_size = CRASH_DUMP_HEADERS_SIZE + FW_VERSION_HEADER_SIZE +
  25                         ivpu_bo_size(vdev->fw->mem_log_crit) + ivpu_bo_size(vdev->fw->mem_log_verb);
  26         coredump = vmalloc(coredump_size);
  27         if (!coredump)
  28                 return;
  29
  30         pi.data = coredump;
  31         pi.remain = coredump_size;
  32         p = drm_coredump_printer(&pi);
  33
  34         drm_printf(&p, "%s\n", CRASH_DUMP_HEADER);
  35         drm_printf(&p, "FW version: %s\n", vdev->fw->version);
  36         ivpu_fw_log_print(vdev, false, &p);
  37
  38         dev_coredumpv(vdev->drm.dev, coredump, pi.offset, GFP_KERNEL);
  39 }