/*
* 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 "umc_v6_1.h"
#include "amdgpu_ras.h"
#include "amdgpu.h"
#include "rsmu/rsmu_0_0_2_offset.h"
#include "rsmu/rsmu_0_0_2_sh_mask.h"
#include "umc/umc_6_1_1_offset.h"
#include "umc/umc_6_1_1_sh_mask.h"
#define smnMCA_UMC0_MCUMC_ADDRT0 0x50f10
/*
* (addr / 256) * 8192, the higher 26 bits in ErrorAddr
* is the index of 8KB block
*/
#define ADDR_OF_8KB_BLOCK(addr) (((addr) & ~0xffULL) << 5)
/* channel index is the index of 256B block */
#define ADDR_OF_256B_BLOCK(channel_index) ((channel_index) << 8)
/* offset in 256B block */
#define OFFSET_IN_256B_BLOCK(addr) ((addr) & 0xffULL)
const uint32_t
umc_v6_1_channel_idx_tbl[UMC_V6_1_UMC_INSTANCE_NUM][UMC_V6_1_CHANNEL_INSTANCE_NUM] = {
{2, 18, 11, 27}, {4, 20, 13, 29},
{1, 17, 8, 24}, {7, 23, 14, 30},
{10, 26, 3, 19}, {12, 28, 5, 21},
{9, 25, 0, 16}, {15, 31, 6, 22}
};
static void umc_v6_1_enable_umc_index_mode(struct amdgpu_device *adev,
uint32_t umc_instance)
{
uint32_t rsmu_umc_index;
rsmu_umc_index = RREG32_SOC15(RSMU, 0,
mmRSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU);
rsmu_umc_index = REG_SET_FIELD(rsmu_umc_index,
RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU,
RSMU_UMC_INDEX_MODE_EN, 1);
rsmu_umc_index = REG_SET_FIELD(rsmu_umc_index,
RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU,
RSMU_UMC_INDEX_INSTANCE, umc_instance);
rsmu_umc_index = REG_SET_FIELD(rsmu_umc_index,
RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU,
RSMU_UMC_INDEX_WREN, 1 << umc_instance);
WREG32_SOC15(RSMU, 0, mmRSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU,
rsmu_umc_index);
}
static void umc_v6_1_disable_umc_index_mode(struct amdgpu_device *adev)
{
WREG32_FIELD15(RSMU, 0, RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU,
RSMU_UMC_INDEX_MODE_EN, 0);
}
static void umc_v6_1_query_correctable_error_count(struct amdgpu_device *adev,
uint32_t umc_reg_offset,
unsigned long *error_count)
{
uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr;
uint32_t ecc_err_cnt, ecc_err_cnt_addr;
uint64_t mc_umc_status;
uint32_t mc_umc_status_addr;
ecc_err_cnt_sel_addr =
SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCntSel);
ecc_err_cnt_addr =
SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCnt);
mc_umc_status_addr =
SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0);
/* select the lower chip and check the error count */
ecc_err_cnt_sel = RREG32(ecc_err_cnt_sel_addr + umc_reg_offset);
ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel,
EccErrCntCsSel, 0);
WREG32(ecc_err_cnt_sel_addr + umc_reg_offset, ecc_err_cnt_sel);
ecc_err_cnt = RREG32(ecc_err_cnt_addr + umc_reg_offset);
*error_count +=
(REG_GET_FIELD(ecc_err_cnt, UMCCH0_0_EccErrCnt, EccErrCnt) -
UMC_V6_1_CE_CNT_INIT);
/* clear the lower chip err count */
WREG32(ecc_err_cnt_addr + umc_reg_offset, UMC_V6_1_CE_CNT_INIT);
/* select the higher chip and check the err counter */
ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel,
EccErrCntCsSel, 1);
WREG32(ecc_err_cnt_sel_addr + umc_reg_offset, ecc_err_cnt_sel);
ecc_err_cnt = RREG32(ecc_err_cnt_addr + umc_reg_offset);
*error_count +=
(REG_GET_FIELD(ecc_err_cnt, UMCCH0_0_EccErrCnt, EccErrCnt) -
UMC_V6_1_CE_CNT_INIT);
/* clear the higher chip err count */
WREG32(ecc_err_cnt_addr + umc_reg_offset, UMC_V6_1_CE_CNT_INIT);
/* check for SRAM correctable error
MCUMC_STATUS is a 64 bit register */
mc_umc_status = RREG64_UMC(mc_umc_status_addr + umc_reg_offset);
if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, ErrorCodeExt) == 6 &&
REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 &&
REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1)
*error_count += 1;
}
static void umc_v6_1_querry_uncorrectable_error_count(struct amdgpu_device *adev,
uint32_t umc_reg_offset,
unsigned long *error_count)
{
uint64_t mc_umc_status;
uint32_t mc_umc_status_addr;
mc_umc_status_addr =
SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0);
/* check the MCUMC_STATUS */
mc_umc_status = RREG64_UMC(mc_umc_status_addr + umc_reg_offset);
if ((REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1) &&
(REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Deferred) == 1 ||
REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 ||
REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, PCC) == 1 ||
REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UC) == 1 ||
REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, TCC) == 1))
*error_count += 1;
}
static void umc_v6_1_query_error_count(struct amdgpu_device *adev,
struct ras_err_data *err_data, uint32_t umc_reg_offset,
uint32_t channel_index)
{
umc_v6_1_query_correctable_error_count(adev, umc_reg_offset,
&(err_data->ce_count));
umc_v6_1_querry_uncorrectable_error_count(adev, umc_reg_offset,
&(err_data->ue_count));
}
static void umc_v6_1_query_ras_error_count(struct amdgpu_device *adev,
void *ras_error_status)
{
amdgpu_umc_for_each_channel(umc_v6_1_query_error_count);
}
static void umc_v6_1_query_error_address(struct amdgpu_device *adev,
struct ras_err_data *err_data,
uint32_t umc_reg_offset, uint32_t channel_index)
{
uint32_t lsb, mc_umc_status_addr;
uint64_t mc_umc_status, err_addr;
mc_umc_status_addr =
SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0);
/* skip error address process if -ENOMEM */
if (!err_data->err_addr) {
/* clear umc status */
WREG64_UMC(mc_umc_status_addr + umc_reg_offset, 0x0ULL);
return;
}
mc_umc_status = RREG64_UMC(mc_umc_status_addr + umc_reg_offset);
/* calculate error address if ue/ce error is detected */
if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 &&
(REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 ||
REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1)) {
err_addr = RREG64_PCIE(smnMCA_UMC0_MCUMC_ADDRT0 + umc_reg_offset * 4);
/* the lowest lsb bits should be ignored */
lsb = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, LSB);
err_addr = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, ErrorAddr);
err_addr &= ~((0x1ULL << lsb) - 1);
/* translate umc channel address to soc pa, 3 parts are included */
err_data->err_addr[err_data->err_addr_cnt] =
ADDR_OF_8KB_BLOCK(err_addr) |
ADDR_OF_256B_BLOCK(channel_index) |
OFFSET_IN_256B_BLOCK(err_addr);
err_data->err_addr_cnt++;
}
/* clear umc status */
WREG64_UMC(mc_umc_status_addr + umc_reg_offset, 0x0ULL);
}
static void umc_v6_1_query_ras_error_address(struct amdgpu_device *adev,
void *ras_error_status)
{
amdgpu_umc_for_each_channel(umc_v6_1_query_error_address);
}
static void umc_v6_1_ras_init_per_channel(struct amdgpu_device *adev,
struct ras_err_data *err_data,
uint32_t umc_reg_offset, uint32_t channel_index)
{
uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr;
uint32_t ecc_err_cnt_addr;
ecc_err_cnt_sel_addr =
SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCntSel);
ecc_err_cnt_addr =
SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCnt);
/* select the lower chip and check the error count */
ecc_err_cnt_sel = RREG32(ecc_err_cnt_sel_addr + umc_reg_offset);
ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel,
EccErrCntCsSel, 0);
/* set ce error interrupt type to APIC based interrupt */
ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel,
EccErrInt, 0x1);
WREG32(ecc_err_cnt_sel_addr + umc_reg_offset, ecc_err_cnt_sel);
/* set error count to initial value */
WREG32(ecc_err_cnt_addr + umc_reg_offset, UMC_V6_1_CE_CNT_INIT);
/* select the higher chip and check the err counter */
ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel,
EccErrCntCsSel, 1);
WREG32(ecc_err_cnt_sel_addr + umc_reg_offset, ecc_err_cnt_sel);
WREG32(ecc_err_cnt_addr + umc_reg_offset, UMC_V6_1_CE_CNT_INIT);
}
static void umc_v6_1_ras_init(struct amdgpu_device *adev)
{
void *ras_error_status = NULL;
amdgpu_umc_for_each_channel(umc_v6_1_ras_init_per_channel);
}
const struct amdgpu_umc_funcs umc_v6_1_funcs = {
.ras_init = umc_v6_1_ras_init,
.query_ras_error_count = umc_v6_1_query_ras_error_count,
.query_ras_error_address = umc_v6_1_query_ras_error_address,
.enable_umc_index_mode = umc_v6_1_enable_umc_index_mode,
.disable_umc_index_mode = umc_v6_1_disable_umc_index_mode,
};