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/*
* Copyright 2019 Advanced Micro Devices, Inc.
*
* 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 "amdgpu_ras.h"
int amdgpu_umc_ras_late_init(struct amdgpu_device *adev)
{
int r;
struct ras_fs_if fs_info = {
.sysfs_name = "umc_err_count",
.debugfs_name = "umc_err_inject",
};
struct ras_ih_if ih_info = {
.cb = amdgpu_umc_process_ras_data_cb,
};
if (!adev->umc.ras_if) {
adev->umc.ras_if =
kmalloc(sizeof(struct ras_common_if), GFP_KERNEL);
if (!adev->umc.ras_if)
return -ENOMEM;
adev->umc.ras_if->block = AMDGPU_RAS_BLOCK__UMC;
adev->umc.ras_if->type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
adev->umc.ras_if->sub_block_index = 0;
strcpy(adev->umc.ras_if->name, "umc");
}
ih_info.head = fs_info.head = *adev->umc.ras_if;
r = amdgpu_ras_late_init(adev, adev->umc.ras_if,
&fs_info, &ih_info);
if (r)
goto free;
if (amdgpu_ras_is_supported(adev, adev->umc.ras_if->block)) {
r = amdgpu_irq_get(adev, &adev->gmc.ecc_irq, 0);
if (r)
goto late_fini;
} else {
r = 0;
goto free;
}
/* ras init of specific umc version */
if (adev->umc.funcs && adev->umc.funcs->err_cnt_init)
adev->umc.funcs->err_cnt_init(adev);
return 0;
late_fini:
amdgpu_ras_late_fini(adev, adev->umc.ras_if, &ih_info);
free:
kfree(adev->umc.ras_if);
adev->umc.ras_if = NULL;
return r;
}
void amdgpu_umc_ras_fini(struct amdgpu_device *adev)
{
if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__UMC) &&
adev->umc.ras_if) {
struct ras_common_if *ras_if = adev->umc.ras_if;
struct ras_ih_if ih_info = {
.head = *ras_if,
.cb = amdgpu_umc_process_ras_data_cb,
};
amdgpu_ras_late_fini(adev, ras_if, &ih_info);
kfree(ras_if);
}
}
int amdgpu_umc_process_ras_data_cb(struct amdgpu_device *adev,
void *ras_error_status,
struct amdgpu_iv_entry *entry)
{
struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status;
if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__GFX))
return AMDGPU_RAS_SUCCESS;
kgd2kfd_set_sram_ecc_flag(adev->kfd.dev);
if (adev->umc.funcs &&
adev->umc.funcs->query_ras_error_count)
adev->umc.funcs->query_ras_error_count(adev, ras_error_status);
if (adev->umc.funcs &&
adev->umc.funcs->query_ras_error_address &&
adev->umc.max_ras_err_cnt_per_query) {
err_data->err_addr =
kcalloc(adev->umc.max_ras_err_cnt_per_query,
sizeof(struct eeprom_table_record), GFP_KERNEL);
/* still call query_ras_error_address to clear error status
* even NOMEM error is encountered
*/
if(!err_data->err_addr)
DRM_WARN("Failed to alloc memory for umc error address record!\n");
/* umc query_ras_error_address is also responsible for clearing
* error status
*/
adev->umc.funcs->query_ras_error_address(adev, ras_error_status);
}
/* only uncorrectable error needs gpu reset */
if (err_data->ue_count) {
if (err_data->err_addr_cnt &&
amdgpu_ras_add_bad_pages(adev, err_data->err_addr,
err_data->err_addr_cnt))
DRM_WARN("Failed to add ras bad page!\n");
amdgpu_ras_reset_gpu(adev, 0);
}
kfree(err_data->err_addr);
return AMDGPU_RAS_SUCCESS;
}
int amdgpu_umc_process_ecc_irq(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
struct amdgpu_iv_entry *entry)
{
struct ras_common_if *ras_if = adev->umc.ras_if;
struct ras_dispatch_if ih_data = {
.entry = entry,
};
if (!ras_if)
return 0;
ih_data.head = *ras_if;
amdgpu_ras_interrupt_dispatch(adev, &ih_data);
return 0;
}
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