LXR linux/drivers/gpu/drm/amd/amdgpu/amdgpu

   1/*
   2 * Copyright 2019 Advanced Micro Devices, Inc.
   3 *
   4 * Permission is hereby granted, free of charge, to any person obtaining a
   5 * copy of this software and associated documentation files (the "Software"),
   6 * to deal in the Software without restriction, including without limitation
   7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 * and/or sell copies of the Software, and to permit persons to whom the
   9 * Software is furnished to do so, subject to the following conditions:
  10 *
  11 * The above copyright notice and this permission notice shall be included in
  12 * all copies or substantial portions of the Software.
  13 *
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 * OTHER DEALINGS IN THE SOFTWARE.
  21 *
  22 */
  23
  24#include "amdgpu.h"
  25#include "amdgpu_ras.h"
  26
  27int amdgpu_mmhub_ras_late_init(struct amdgpu_device *adev)
  28{
  29        int r;
  30        struct ras_ih_if ih_info = {
  31                .cb = NULL,
  32        };
  33        struct ras_fs_if fs_info = {
  34                .sysfs_name = "mmhub_err_count",
  35        };
  36
  37        if (!adev->mmhub.ras_if) {
  38                adev->mmhub.ras_if = kmalloc(sizeof(struct ras_common_if), GFP_KERNEL);
  39                if (!adev->mmhub.ras_if)
  40                        return -ENOMEM;
  41                adev->mmhub.ras_if->block = AMDGPU_RAS_BLOCK__MMHUB;
  42                adev->mmhub.ras_if->type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
  43                adev->mmhub.ras_if->sub_block_index = 0;
  44                strcpy(adev->mmhub.ras_if->name, "mmhub");
  45        }
  46        ih_info.head = fs_info.head = *adev->mmhub.ras_if;
  47        r = amdgpu_ras_late_init(adev, adev->mmhub.ras_if,
  48                                 &fs_info, &ih_info);
  49        if (r || !amdgpu_ras_is_supported(adev, adev->mmhub.ras_if->block)) {
  50                kfree(adev->mmhub.ras_if);
  51                adev->mmhub.ras_if = NULL;
  52        }
  53
  54        return r;
  55}
  56
  57void amdgpu_mmhub_ras_fini(struct amdgpu_device *adev)
  58{
  59        if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__MMHUB) &&
  60                        adev->mmhub.ras_if) {
  61                struct ras_common_if *ras_if = adev->mmhub.ras_if;
  62                struct ras_ih_if ih_info = {
  63                        .cb = NULL,
  64                };
  65
  66                amdgpu_ras_late_fini(adev, ras_if, &ih_info);
  67                kfree(ras_if);
  68        }
  69}
  70