回复: [PATCH Review 2/2] drm/amdgpu: print umc correctable error address
Yang, Stanley
Stanley.Yang at amd.com
Mon May 23 10:26:11 UTC 2022
Thanks tao, will update.
> -----邮件原件-----
> 发件人: Zhou1, Tao <Tao.Zhou1 at amd.com>
> 发送时间: Monday, May 23, 2022 6:22 PM
> 收件人: Yang, Stanley <Stanley.Yang at amd.com>; amd-
> gfx at lists.freedesktop.org; Zhang, Hawking <Hawking.Zhang at amd.com>; Quan,
> Evan <Evan.Quan at amd.com>; Lazar, Lijo <Lijo.Lazar at amd.com>
> 抄送: Yang, Stanley <Stanley.Yang at amd.com>
> 主题: RE: [PATCH Review 2/2] drm/amdgpu: print umc correctable error address
>
> [AMD Official Use Only - General]
>
>
>
> > -----Original Message-----
> > From: Stanley.Yang <Stanley.Yang at amd.com>
> > Sent: Monday, May 23, 2022 4:17 PM
> > To: amd-gfx at lists.freedesktop.org; Zhang, Hawking
> > <Hawking.Zhang at amd.com>; Zhou1, Tao <Tao.Zhou1 at amd.com>; Quan,
> Evan
> > <Evan.Quan at amd.com>; Lazar, Lijo <Lijo.Lazar at amd.com>
> > Cc: Yang, Stanley <Stanley.Yang at amd.com>
> > Subject: [PATCH Review 2/2] drm/amdgpu: print umc correctable error
> > address
> >
> > Signed-off-by: Stanley.Yang <Stanley.Yang at amd.com>
> > ---
> > drivers/gpu/drm/amd/amdgpu/amdgpu.h | 5 ++
> > drivers/gpu/drm/amd/amdgpu/umc_v6_7.c | 55
> > ++++++++++++++++++-
> > .../drm/amd/pm/swsmu/smu13/aldebaran_ppt.c | 2 +
> > 3 files changed, 60 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> > b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> > index 3f23f9ad3249..985b8cddb5a1 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> > @@ -1108,6 +1108,11 @@ struct amdgpu_device {
> >
> > bool scpm_enabled;
> > uint32_t scpm_status;
> > +
> > + /* Determine smu ecctable whether support
> > + * record correctable error address
> > + */
> > + int record_ce_addr_supported;
> > };
> >
> > static inline struct amdgpu_device *drm_to_adev(struct drm_device
> > *ddev) diff --git a/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c
> > b/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c
> > index 606892dbea1c..47bd39e52e9b 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c
> > @@ -119,6 +119,27 @@ static void
> > umc_v6_7_ecc_info_query_correctable_error_count(struct amdgpu_device
> > *error_count += 1;
> >
> > umc_v6_7_query_error_status_helper(adev,
> > mc_umc_status, umc_reg_offset);
> > +
> > + if (adev->record_ce_addr_supported) {
> > + uint64_t err_addr, soc_pa;
> > + uint32_t channel_index =
> > + adev->umc.channel_idx_tbl[umc_inst *
> > adev->umc.channel_inst_num +
> > +ch_inst];
> > +
> > + err_addr = ras-
> > >umc_ecc.ecc[eccinfo_table_idx].mca_ceumc_addr;
> > + err_addr = REG_GET_FIELD(err_addr,
> > MCA_UMC_UMC0_MCUMC_ADDRT0, ErrorAddr);
> > + /* translate umc channel address to soc pa, 3 parts
> > are included */
> > + soc_pa = ADDR_OF_8KB_BLOCK(err_addr) |
> > +
> > ADDR_OF_256B_BLOCK(channel_index) |
> > + OFFSET_IN_256B_BLOCK(err_addr);
> > +
> > + /* The umc channel bits are not original values, they
> > are hashed */
> > + SET_CHANNEL_HASH(channel_index, soc_pa);
> > +
> > + /* clear [C4 C3 C2] in soc physical address */
> > + soc_pa &= ~(0x7ULL << UMC_V6_7_PA_C2_BIT);
>
> [Tao] this clear is the preparation for looping all column bits in same row, you
> only need physical address of one page, the code can be removed.
>
> > +
> > + dev_info(adev->dev, "Error Address(PA): 0x%llx\n",
> > soc_pa);
> > + }
> > }
> > }
> >
> > @@ -251,7 +272,9 @@ static void
> > umc_v6_7_ecc_info_query_ras_error_address(struct amdgpu_device *adev
> >
> > static void umc_v6_7_query_correctable_error_count(struct
> > amdgpu_device *adev,
> > uint32_t umc_reg_offset,
> > - unsigned long
> > *error_count)
> > + unsigned long
> > *error_count,
> > + uint32_t ch_inst,
> > + uint32_t umc_inst)
> > {
> > uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr;
> > uint32_t ecc_err_cnt, ecc_err_cnt_addr; @@ -295,6 +318,33 @@ static
> > void umc_v6_7_query_correctable_error_count(struct
> > amdgpu_device *adev,
> > *error_count += 1;
> >
> > umc_v6_7_query_error_status_helper(adev,
> > mc_umc_status, umc_reg_offset);
> > +
> > + {
> > + uint64_t err_addr, soc_pa;
> > + uint32_t mc_umc_addrt0;
> > + uint32_t channel_index;
> > +
> > + mc_umc_addrt0 =
> > + SOC15_REG_OFFSET(UMC, 0,
> > regMCA_UMC_UMC0_MCUMC_ADDRT0);
> > +
> > + channel_index =
> > + adev->umc.channel_idx_tbl[umc_inst *
> > adev->umc.channel_inst_num +
> > +ch_inst];
> > +
> > + err_addr = RREG64_PCIE((mc_umc_addrt0 +
> > umc_reg_offset) * 4);
> > + err_addr = REG_GET_FIELD(err_addr,
> > MCA_UMC_UMC0_MCUMC_ADDRT0,
> > +ErrorAddr);
> > +
> > + /* translate umc channel address to soc pa, 3 parts
> > are included */
> > + soc_pa = ADDR_OF_8KB_BLOCK(err_addr) |
> > +
> > ADDR_OF_256B_BLOCK(channel_index) |
> > + OFFSET_IN_256B_BLOCK(err_addr);
> > +
> > + /* The umc channel bits are not original values, they
> > are hashed */
> > + SET_CHANNEL_HASH(channel_index, soc_pa);
> > +
> > + /* clear [C4 C3 C2] in soc physical address */
> > + soc_pa &= ~(0x7ULL << UMC_V6_7_PA_C2_BIT);
> > + dev_info(adev->dev, "Error Address(PA): 0x%llx\n",
> > soc_pa);
> > + }
> > }
> > }
> >
> > @@ -395,7 +445,8 @@ static void umc_v6_7_query_ras_error_count(struct
> > amdgpu_device *adev,
> > ch_inst);
> > umc_v6_7_query_correctable_error_count(adev,
> > umc_reg_offset,
> > - &(err_data->ce_count));
> > + &(err_data->ce_count),
> > + ch_inst, umc_inst);
> > umc_v6_7_querry_uncorrectable_error_count(adev,
> > umc_reg_offset,
> > &(err_data-
> > >ue_count));
> > diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c
> > b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c
> > index e58df9490cec..e182088b4ac8 100644
> > --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c
> > +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c
> > @@ -1908,6 +1908,8 @@ static ssize_t aldebaran_get_ecc_info(struct
> > smu_context *smu,
> > ecc_table_v2->EccInfo[i].mca_umc_addr;
> > ecc_info_per_channel->mca_ceumc_addr =
> > ecc_table_v2->EccInfo[i].mca_ceumc_addr;
> > + if (!smu->adev->record_ce_addr_supported)
>
> [Tao] it seems the check is unnecessary.
>
> > + smu->adev->record_ce_addr_supported =1;
> > }
> > }
> >
> > --
> > 2.17.1
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