631 lines
17 KiB
C
631 lines
17 KiB
C
/*
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* Copyright 2021 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include "amdgpu_ras.h"
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#include "amdgpu.h"
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#include "amdgpu_mca.h"
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#include "umc/umc_6_7_0_offset.h"
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#include "umc/umc_6_7_0_sh_mask.h"
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static bool amdgpu_mca_is_deferred_error(struct amdgpu_device *adev,
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uint64_t mc_status)
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{
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if (adev->umc.ras->check_ecc_err_status)
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return adev->umc.ras->check_ecc_err_status(adev,
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AMDGPU_MCA_ERROR_TYPE_DE, &mc_status);
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return false;
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}
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void amdgpu_mca_query_correctable_error_count(struct amdgpu_device *adev,
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uint64_t mc_status_addr,
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unsigned long *error_count)
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{
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uint64_t mc_status = RREG64_PCIE(mc_status_addr);
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if (REG_GET_FIELD(mc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 &&
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REG_GET_FIELD(mc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1)
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*error_count += 1;
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}
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void amdgpu_mca_query_uncorrectable_error_count(struct amdgpu_device *adev,
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uint64_t mc_status_addr,
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unsigned long *error_count)
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{
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uint64_t mc_status = RREG64_PCIE(mc_status_addr);
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if ((REG_GET_FIELD(mc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1) &&
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(REG_GET_FIELD(mc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Deferred) == 1 ||
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REG_GET_FIELD(mc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 ||
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REG_GET_FIELD(mc_status, MCA_UMC_UMC0_MCUMC_STATUST0, PCC) == 1 ||
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REG_GET_FIELD(mc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UC) == 1 ||
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REG_GET_FIELD(mc_status, MCA_UMC_UMC0_MCUMC_STATUST0, TCC) == 1))
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*error_count += 1;
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}
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void amdgpu_mca_reset_error_count(struct amdgpu_device *adev,
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uint64_t mc_status_addr)
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{
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WREG64_PCIE(mc_status_addr, 0x0ULL);
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}
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void amdgpu_mca_query_ras_error_count(struct amdgpu_device *adev,
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uint64_t mc_status_addr,
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void *ras_error_status)
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{
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struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status;
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amdgpu_mca_query_correctable_error_count(adev, mc_status_addr, &(err_data->ce_count));
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amdgpu_mca_query_uncorrectable_error_count(adev, mc_status_addr, &(err_data->ue_count));
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amdgpu_mca_reset_error_count(adev, mc_status_addr);
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}
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int amdgpu_mca_mp0_ras_sw_init(struct amdgpu_device *adev)
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{
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int err;
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struct amdgpu_mca_ras_block *ras;
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if (!adev->mca.mp0.ras)
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return 0;
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ras = adev->mca.mp0.ras;
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err = amdgpu_ras_register_ras_block(adev, &ras->ras_block);
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if (err) {
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dev_err(adev->dev, "Failed to register mca.mp0 ras block!\n");
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return err;
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}
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strcpy(ras->ras_block.ras_comm.name, "mca.mp0");
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ras->ras_block.ras_comm.block = AMDGPU_RAS_BLOCK__MCA;
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ras->ras_block.ras_comm.type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
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adev->mca.mp0.ras_if = &ras->ras_block.ras_comm;
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return 0;
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}
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int amdgpu_mca_mp1_ras_sw_init(struct amdgpu_device *adev)
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{
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int err;
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struct amdgpu_mca_ras_block *ras;
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if (!adev->mca.mp1.ras)
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return 0;
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ras = adev->mca.mp1.ras;
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err = amdgpu_ras_register_ras_block(adev, &ras->ras_block);
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if (err) {
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dev_err(adev->dev, "Failed to register mca.mp1 ras block!\n");
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return err;
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}
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strcpy(ras->ras_block.ras_comm.name, "mca.mp1");
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ras->ras_block.ras_comm.block = AMDGPU_RAS_BLOCK__MCA;
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ras->ras_block.ras_comm.type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
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adev->mca.mp1.ras_if = &ras->ras_block.ras_comm;
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return 0;
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}
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int amdgpu_mca_mpio_ras_sw_init(struct amdgpu_device *adev)
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{
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int err;
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struct amdgpu_mca_ras_block *ras;
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if (!adev->mca.mpio.ras)
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return 0;
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ras = adev->mca.mpio.ras;
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err = amdgpu_ras_register_ras_block(adev, &ras->ras_block);
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if (err) {
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dev_err(adev->dev, "Failed to register mca.mpio ras block!\n");
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return err;
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}
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strcpy(ras->ras_block.ras_comm.name, "mca.mpio");
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ras->ras_block.ras_comm.block = AMDGPU_RAS_BLOCK__MCA;
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ras->ras_block.ras_comm.type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
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adev->mca.mpio.ras_if = &ras->ras_block.ras_comm;
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return 0;
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}
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static void amdgpu_mca_bank_set_init(struct mca_bank_set *mca_set)
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{
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if (!mca_set)
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return;
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memset(mca_set, 0, sizeof(*mca_set));
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INIT_LIST_HEAD(&mca_set->list);
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}
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static int amdgpu_mca_bank_set_add_entry(struct mca_bank_set *mca_set, struct mca_bank_entry *entry)
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{
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struct mca_bank_node *node;
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if (!entry)
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return -EINVAL;
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node = kvzalloc(sizeof(*node), GFP_KERNEL);
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if (!node)
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return -ENOMEM;
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memcpy(&node->entry, entry, sizeof(*entry));
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INIT_LIST_HEAD(&node->node);
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list_add_tail(&node->node, &mca_set->list);
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mca_set->nr_entries++;
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return 0;
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}
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static int amdgpu_mca_bank_set_merge(struct mca_bank_set *mca_set, struct mca_bank_set *new)
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{
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struct mca_bank_node *node;
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list_for_each_entry(node, &new->list, node)
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amdgpu_mca_bank_set_add_entry(mca_set, &node->entry);
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return 0;
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}
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static void amdgpu_mca_bank_set_remove_node(struct mca_bank_set *mca_set, struct mca_bank_node *node)
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{
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if (!node)
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return;
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list_del(&node->node);
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kvfree(node);
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mca_set->nr_entries--;
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}
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static void amdgpu_mca_bank_set_release(struct mca_bank_set *mca_set)
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{
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struct mca_bank_node *node, *tmp;
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if (list_empty(&mca_set->list))
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return;
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list_for_each_entry_safe(node, tmp, &mca_set->list, node)
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amdgpu_mca_bank_set_remove_node(mca_set, node);
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}
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void amdgpu_mca_smu_init_funcs(struct amdgpu_device *adev, const struct amdgpu_mca_smu_funcs *mca_funcs)
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{
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struct amdgpu_mca *mca = &adev->mca;
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mca->mca_funcs = mca_funcs;
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}
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int amdgpu_mca_init(struct amdgpu_device *adev)
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{
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struct amdgpu_mca *mca = &adev->mca;
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struct mca_bank_cache *mca_cache;
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int i;
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atomic_set(&mca->ue_update_flag, 0);
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for (i = 0; i < ARRAY_SIZE(mca->mca_caches); i++) {
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mca_cache = &mca->mca_caches[i];
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mutex_init(&mca_cache->lock);
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amdgpu_mca_bank_set_init(&mca_cache->mca_set);
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}
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return 0;
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}
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void amdgpu_mca_fini(struct amdgpu_device *adev)
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{
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struct amdgpu_mca *mca = &adev->mca;
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struct mca_bank_cache *mca_cache;
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int i;
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atomic_set(&mca->ue_update_flag, 0);
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for (i = 0; i < ARRAY_SIZE(mca->mca_caches); i++) {
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mca_cache = &mca->mca_caches[i];
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amdgpu_mca_bank_set_release(&mca_cache->mca_set);
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mutex_destroy(&mca_cache->lock);
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}
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}
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int amdgpu_mca_reset(struct amdgpu_device *adev)
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{
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amdgpu_mca_fini(adev);
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return amdgpu_mca_init(adev);
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}
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int amdgpu_mca_smu_set_debug_mode(struct amdgpu_device *adev, bool enable)
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{
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const struct amdgpu_mca_smu_funcs *mca_funcs = adev->mca.mca_funcs;
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if (mca_funcs && mca_funcs->mca_set_debug_mode)
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return mca_funcs->mca_set_debug_mode(adev, enable);
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return -EOPNOTSUPP;
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}
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static void amdgpu_mca_smu_mca_bank_dump(struct amdgpu_device *adev, int idx, struct mca_bank_entry *entry,
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struct ras_query_context *qctx)
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{
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u64 event_id = qctx ? qctx->evid.event_id : RAS_EVENT_INVALID_ID;
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RAS_EVENT_LOG(adev, event_id, HW_ERR "Accelerator Check Architecture events logged\n");
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RAS_EVENT_LOG(adev, event_id, HW_ERR "aca entry[%02d].STATUS=0x%016llx\n",
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idx, entry->regs[MCA_REG_IDX_STATUS]);
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RAS_EVENT_LOG(adev, event_id, HW_ERR "aca entry[%02d].ADDR=0x%016llx\n",
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idx, entry->regs[MCA_REG_IDX_ADDR]);
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RAS_EVENT_LOG(adev, event_id, HW_ERR "aca entry[%02d].MISC0=0x%016llx\n",
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idx, entry->regs[MCA_REG_IDX_MISC0]);
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RAS_EVENT_LOG(adev, event_id, HW_ERR "aca entry[%02d].IPID=0x%016llx\n",
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idx, entry->regs[MCA_REG_IDX_IPID]);
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RAS_EVENT_LOG(adev, event_id, HW_ERR "aca entry[%02d].SYND=0x%016llx\n",
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idx, entry->regs[MCA_REG_IDX_SYND]);
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}
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static int amdgpu_mca_smu_get_valid_mca_count(struct amdgpu_device *adev, enum amdgpu_mca_error_type type, uint32_t *count)
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{
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const struct amdgpu_mca_smu_funcs *mca_funcs = adev->mca.mca_funcs;
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if (!count)
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return -EINVAL;
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if (mca_funcs && mca_funcs->mca_get_valid_mca_count)
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return mca_funcs->mca_get_valid_mca_count(adev, type, count);
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return -EOPNOTSUPP;
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}
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static int amdgpu_mca_smu_get_mca_entry(struct amdgpu_device *adev, enum amdgpu_mca_error_type type,
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int idx, struct mca_bank_entry *entry)
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{
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const struct amdgpu_mca_smu_funcs *mca_funcs = adev->mca.mca_funcs;
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int count;
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if (!mca_funcs || !mca_funcs->mca_get_mca_entry)
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return -EOPNOTSUPP;
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switch (type) {
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case AMDGPU_MCA_ERROR_TYPE_UE:
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count = mca_funcs->max_ue_count;
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break;
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case AMDGPU_MCA_ERROR_TYPE_CE:
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count = mca_funcs->max_ce_count;
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break;
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default:
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return -EINVAL;
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}
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if (idx >= count)
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return -EINVAL;
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return mca_funcs->mca_get_mca_entry(adev, type, idx, entry);
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}
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static bool amdgpu_mca_bank_should_update(struct amdgpu_device *adev, enum amdgpu_mca_error_type type)
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{
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struct amdgpu_mca *mca = &adev->mca;
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bool ret = true;
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/*
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* Because the UE Valid MCA count will only be cleared after reset,
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* in order to avoid repeated counting of the error count,
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* the aca bank is only updated once during the gpu recovery stage.
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*/
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if (type == AMDGPU_MCA_ERROR_TYPE_UE) {
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if (amdgpu_ras_intr_triggered())
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ret = atomic_cmpxchg(&mca->ue_update_flag, 0, 1) == 0;
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else
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atomic_set(&mca->ue_update_flag, 0);
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}
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return ret;
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}
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static bool amdgpu_mca_bank_should_dump(struct amdgpu_device *adev, enum amdgpu_mca_error_type type,
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struct mca_bank_entry *entry)
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{
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bool ret;
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switch (type) {
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case AMDGPU_MCA_ERROR_TYPE_CE:
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ret = amdgpu_mca_is_deferred_error(adev, entry->regs[MCA_REG_IDX_STATUS]);
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break;
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case AMDGPU_MCA_ERROR_TYPE_UE:
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default:
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ret = true;
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break;
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}
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return ret;
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}
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static int amdgpu_mca_smu_get_mca_set(struct amdgpu_device *adev, enum amdgpu_mca_error_type type, struct mca_bank_set *mca_set,
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struct ras_query_context *qctx)
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{
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struct mca_bank_entry entry;
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uint32_t count = 0, i;
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int ret;
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if (!mca_set)
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return -EINVAL;
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if (!amdgpu_mca_bank_should_update(adev, type))
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return 0;
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ret = amdgpu_mca_smu_get_valid_mca_count(adev, type, &count);
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if (ret)
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return ret;
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for (i = 0; i < count; i++) {
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memset(&entry, 0, sizeof(entry));
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ret = amdgpu_mca_smu_get_mca_entry(adev, type, i, &entry);
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if (ret)
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return ret;
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amdgpu_mca_bank_set_add_entry(mca_set, &entry);
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if (amdgpu_mca_bank_should_dump(adev, type, &entry))
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amdgpu_mca_smu_mca_bank_dump(adev, i, &entry, qctx);
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}
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return 0;
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}
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static int amdgpu_mca_smu_parse_mca_error_count(struct amdgpu_device *adev, enum amdgpu_ras_block blk,
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enum amdgpu_mca_error_type type, struct mca_bank_entry *entry, uint32_t *count)
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{
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const struct amdgpu_mca_smu_funcs *mca_funcs = adev->mca.mca_funcs;
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if (!count || !entry)
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return -EINVAL;
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if (!mca_funcs || !mca_funcs->mca_parse_mca_error_count)
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return -EOPNOTSUPP;
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return mca_funcs->mca_parse_mca_error_count(adev, blk, type, entry, count);
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}
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static int amdgpu_mca_dispatch_mca_set(struct amdgpu_device *adev, enum amdgpu_ras_block blk, enum amdgpu_mca_error_type type,
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struct mca_bank_set *mca_set, struct ras_err_data *err_data)
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{
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struct amdgpu_smuio_mcm_config_info mcm_info;
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struct mca_bank_node *node, *tmp;
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struct mca_bank_entry *entry;
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uint32_t count;
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int ret;
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if (!mca_set)
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return -EINVAL;
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if (!mca_set->nr_entries)
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return 0;
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list_for_each_entry_safe(node, tmp, &mca_set->list, node) {
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entry = &node->entry;
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count = 0;
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ret = amdgpu_mca_smu_parse_mca_error_count(adev, blk, type, entry, &count);
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if (ret && ret != -EOPNOTSUPP)
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return ret;
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if (!count)
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continue;
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memset(&mcm_info, 0, sizeof(mcm_info));
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mcm_info.socket_id = entry->info.socket_id;
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mcm_info.die_id = entry->info.aid;
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if (type == AMDGPU_MCA_ERROR_TYPE_UE) {
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amdgpu_ras_error_statistic_ue_count(err_data,
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&mcm_info, (uint64_t)count);
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} else {
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if (amdgpu_mca_is_deferred_error(adev, entry->regs[MCA_REG_IDX_STATUS]))
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amdgpu_ras_error_statistic_de_count(err_data,
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&mcm_info, (uint64_t)count);
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else
|
|
amdgpu_ras_error_statistic_ce_count(err_data,
|
|
&mcm_info, (uint64_t)count);
|
|
}
|
|
|
|
amdgpu_mca_bank_set_remove_node(mca_set, node);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int amdgpu_mca_add_mca_set_to_cache(struct amdgpu_device *adev, enum amdgpu_mca_error_type type, struct mca_bank_set *new)
|
|
{
|
|
struct mca_bank_cache *mca_cache = &adev->mca.mca_caches[type];
|
|
int ret;
|
|
|
|
mutex_lock(&mca_cache->lock);
|
|
ret = amdgpu_mca_bank_set_merge(&mca_cache->mca_set, new);
|
|
mutex_unlock(&mca_cache->lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int amdgpu_mca_smu_log_ras_error(struct amdgpu_device *adev, enum amdgpu_ras_block blk, enum amdgpu_mca_error_type type,
|
|
struct ras_err_data *err_data, struct ras_query_context *qctx)
|
|
{
|
|
struct mca_bank_set mca_set;
|
|
struct mca_bank_cache *mca_cache = &adev->mca.mca_caches[type];
|
|
int ret;
|
|
|
|
amdgpu_mca_bank_set_init(&mca_set);
|
|
|
|
ret = amdgpu_mca_smu_get_mca_set(adev, type, &mca_set, qctx);
|
|
if (ret)
|
|
goto out_mca_release;
|
|
|
|
ret = amdgpu_mca_dispatch_mca_set(adev, blk, type, &mca_set, err_data);
|
|
if (ret)
|
|
goto out_mca_release;
|
|
|
|
/* add remain mca bank to mca cache */
|
|
if (mca_set.nr_entries) {
|
|
ret = amdgpu_mca_add_mca_set_to_cache(adev, type, &mca_set);
|
|
if (ret)
|
|
goto out_mca_release;
|
|
}
|
|
|
|
/* dispatch mca set again if mca cache has valid data */
|
|
mutex_lock(&mca_cache->lock);
|
|
if (mca_cache->mca_set.nr_entries)
|
|
ret = amdgpu_mca_dispatch_mca_set(adev, blk, type, &mca_cache->mca_set, err_data);
|
|
mutex_unlock(&mca_cache->lock);
|
|
|
|
out_mca_release:
|
|
amdgpu_mca_bank_set_release(&mca_set);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#if defined(CONFIG_DEBUG_FS)
|
|
static int amdgpu_mca_smu_debug_mode_set(void *data, u64 val)
|
|
{
|
|
struct amdgpu_device *adev = (struct amdgpu_device *)data;
|
|
int ret;
|
|
|
|
ret = amdgpu_ras_set_mca_debug_mode(adev, val ? true : false);
|
|
if (ret)
|
|
return ret;
|
|
|
|
dev_info(adev->dev, "amdgpu set smu mca debug mode %s success\n", val ? "on" : "off");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mca_dump_entry(struct seq_file *m, struct mca_bank_entry *entry)
|
|
{
|
|
int i, idx = entry->idx;
|
|
int reg_idx_array[] = {
|
|
MCA_REG_IDX_STATUS,
|
|
MCA_REG_IDX_ADDR,
|
|
MCA_REG_IDX_MISC0,
|
|
MCA_REG_IDX_IPID,
|
|
MCA_REG_IDX_SYND,
|
|
};
|
|
|
|
seq_printf(m, "mca entry[%d].type: %s\n", idx, entry->type == AMDGPU_MCA_ERROR_TYPE_UE ? "UE" : "CE");
|
|
seq_printf(m, "mca entry[%d].ip: %d\n", idx, entry->ip);
|
|
seq_printf(m, "mca entry[%d].info: socketid:%d aid:%d hwid:0x%03x mcatype:0x%04x\n",
|
|
idx, entry->info.socket_id, entry->info.aid, entry->info.hwid, entry->info.mcatype);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(reg_idx_array); i++)
|
|
seq_printf(m, "mca entry[%d].regs[%d]: 0x%016llx\n", idx, reg_idx_array[i], entry->regs[reg_idx_array[i]]);
|
|
}
|
|
|
|
static int mca_dump_show(struct seq_file *m, enum amdgpu_mca_error_type type)
|
|
{
|
|
struct amdgpu_device *adev = (struct amdgpu_device *)m->private;
|
|
struct mca_bank_node *node;
|
|
struct mca_bank_set mca_set;
|
|
struct ras_query_context qctx;
|
|
int ret;
|
|
|
|
amdgpu_mca_bank_set_init(&mca_set);
|
|
|
|
qctx.evid.event_id = RAS_EVENT_INVALID_ID;
|
|
ret = amdgpu_mca_smu_get_mca_set(adev, type, &mca_set, &qctx);
|
|
if (ret)
|
|
goto err_free_mca_set;
|
|
|
|
seq_printf(m, "amdgpu smu %s valid mca count: %d\n",
|
|
type == AMDGPU_MCA_ERROR_TYPE_UE ? "UE" : "CE", mca_set.nr_entries);
|
|
|
|
if (!mca_set.nr_entries)
|
|
goto err_free_mca_set;
|
|
|
|
list_for_each_entry(node, &mca_set.list, node)
|
|
mca_dump_entry(m, &node->entry);
|
|
|
|
/* add mca bank to mca bank cache */
|
|
ret = amdgpu_mca_add_mca_set_to_cache(adev, type, &mca_set);
|
|
|
|
err_free_mca_set:
|
|
amdgpu_mca_bank_set_release(&mca_set);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mca_dump_ce_show(struct seq_file *m, void *unused)
|
|
{
|
|
return mca_dump_show(m, AMDGPU_MCA_ERROR_TYPE_CE);
|
|
}
|
|
|
|
static int mca_dump_ce_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, mca_dump_ce_show, inode->i_private);
|
|
}
|
|
|
|
static const struct file_operations mca_ce_dump_debug_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = mca_dump_ce_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
static int mca_dump_ue_show(struct seq_file *m, void *unused)
|
|
{
|
|
return mca_dump_show(m, AMDGPU_MCA_ERROR_TYPE_UE);
|
|
}
|
|
|
|
static int mca_dump_ue_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, mca_dump_ue_show, inode->i_private);
|
|
}
|
|
|
|
static const struct file_operations mca_ue_dump_debug_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = mca_dump_ue_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
DEFINE_DEBUGFS_ATTRIBUTE(mca_debug_mode_fops, NULL, amdgpu_mca_smu_debug_mode_set, "%llu\n");
|
|
#endif
|
|
|
|
void amdgpu_mca_smu_debugfs_init(struct amdgpu_device *adev, struct dentry *root)
|
|
{
|
|
#if defined(CONFIG_DEBUG_FS)
|
|
if (!root)
|
|
return;
|
|
|
|
debugfs_create_file("mca_debug_mode", 0200, root, adev, &mca_debug_mode_fops);
|
|
debugfs_create_file("mca_ue_dump", 0400, root, adev, &mca_ue_dump_debug_fops);
|
|
debugfs_create_file("mca_ce_dump", 0400, root, adev, &mca_ce_dump_debug_fops);
|
|
#endif
|
|
}
|
|
|