Add support for family 1Ah-based models 50h-57h, 90h-9Fh, A0h-AFh, and
C0h-C7h.

Signed-off-by: Avadhut Naik <avadhut.naik@amd.com>
---
Changes in v2:
1. Remove extra tabs

Changes in v3:
1. Since ctl_name string is now assigned at runtime, group similar models
together.
---
 drivers/edac/amd64_edac.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 0fade110c3fb..804d3c4c3f14 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -3895,6 +3895,16 @@ static int per_family_init(struct amd64_pvt *pvt)
 		case 0x40 ... 0x4f:
 			pvt->flags.zn_regs_v2   = 1;
 			break;
+		case 0x50 ... 0x57:
+		case 0xc0 ... 0xc7:
+			pvt->max_mcs            = 16;
+			pvt->flags.zn_regs_v2   = 1;
+			break;
+		case 0x90 ... 0x9f:
+		case 0xa0 ... 0xaf:
+			pvt->max_mcs            = 8;
+			pvt->flags.zn_regs_v2   = 1;
+			break;
 		}
 		break;
 
-- 
2.43.0

On Tue, Sep 09, 2025 at 06:53:12PM +0000, Avadhut Naik wrote:
> Add support for family 1Ah-based models 50h-57h, 90h-9Fh, A0h-AFh, and
> C0h-C7h.
> 
> Signed-off-by: Avadhut Naik <avadhut.naik@amd.com>
> ---
> Changes in v2:
> 1. Remove extra tabs
> 
> Changes in v3:
> 1. Since ctl_name string is now assigned at runtime, group similar models
> together.
> ---
>  drivers/edac/amd64_edac.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
> index 0fade110c3fb..804d3c4c3f14 100644
> --- a/drivers/edac/amd64_edac.c
> +++ b/drivers/edac/amd64_edac.c
> @@ -3895,6 +3895,16 @@ static int per_family_init(struct amd64_pvt *pvt)
>  		case 0x40 ... 0x4f:
>  			pvt->flags.zn_regs_v2   = 1;
>  			break;
> +		case 0x50 ... 0x57:
> +		case 0xc0 ... 0xc7:
> +			pvt->max_mcs            = 16;
> +			pvt->flags.zn_regs_v2   = 1;
> +			break;
> +		case 0x90 ... 0x9f:
> +		case 0xa0 ... 0xaf:
> +			pvt->max_mcs            = 8;
> +			pvt->flags.zn_regs_v2   = 1;

All of Family 1Ah uses 'zn_regs_v2', so this can go before the models
cases.

The register changes happened in Family 19h, so there are a mix of
models there.

We could be so bold to say 'zn_regs_v2 = (family >= 0x1A)' up top.

Family 19h would not set this, but then the individual model cases can
fix it up.

Thanks,
Yazen

On 9/10/2025 10:13, Yazen Ghannam wrote:
> On Tue, Sep 09, 2025 at 06:53:12PM +0000, Avadhut Naik wrote:
>> Add support for family 1Ah-based models 50h-57h, 90h-9Fh, A0h-AFh, and
>> C0h-C7h.
>>
>> Signed-off-by: Avadhut Naik <avadhut.naik@amd.com>
>> ---
>> Changes in v2:
>> 1. Remove extra tabs
>>
>> Changes in v3:
>> 1. Since ctl_name string is now assigned at runtime, group similar models
>> together.
>> ---
>>  drivers/edac/amd64_edac.c | 10 ++++++++++
>>  1 file changed, 10 insertions(+)
>>
>> diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
>> index 0fade110c3fb..804d3c4c3f14 100644
>> --- a/drivers/edac/amd64_edac.c
>> +++ b/drivers/edac/amd64_edac.c
>> @@ -3895,6 +3895,16 @@ static int per_family_init(struct amd64_pvt *pvt)
>>  		case 0x40 ... 0x4f:
>>  			pvt->flags.zn_regs_v2   = 1;
>>  			break;
>> +		case 0x50 ... 0x57:
>> +		case 0xc0 ... 0xc7:
>> +			pvt->max_mcs            = 16;
>> +			pvt->flags.zn_regs_v2   = 1;
>> +			break;
>> +		case 0x90 ... 0x9f:
>> +		case 0xa0 ... 0xaf:
>> +			pvt->max_mcs            = 8;
>> +			pvt->flags.zn_regs_v2   = 1;
> 
> All of Family 1Ah uses 'zn_regs_v2', so this can go before the models
> cases.
> 
> The register changes happened in Family 19h, so there are a mix of
> models there.
> 
> We could be so bold to say 'zn_regs_v2 = (family >= 0x1A)' up top.
> 
> Family 19h would not set this, but then the individual model cases can
> fix it up.
> 
Okay. Will set zn_regs_v2 at the top of per_family_init() for Family 1Ah.
Will remove its existing usage too.
Will make this a separate patch.

> Thanks,
> Yazen

-- 
Thanks,
Avadhut Naik