diff mbox series

amd64_edac - Add Family 17h Model 70h PCI IDs

Message ID BN7PR07MB5186DD5732B95B784A9D46BFCEB80@BN7PR07MB5186.namprd07.prod.outlook.com (mailing list archive)
State New, archived
Headers show
Series amd64_edac - Add Family 17h Model 70h PCI IDs | expand

Commit Message

Isaac Vaughn Sept. 4, 2019, 9:13 p.m. UTC
Dear Mr. Petkov,

I noticed the current EDAC driver doesn't support the new Zen 2 (model 70h) processors, so I patched the new device ids in. The changes are minimal, I merely extended the existing enums with information from the new models.

This is my first kernel patch and I'm not sure I followed the guide (kernel.org/doc/html/v5.2/process/submitting-patches.html) correctly, so please let me know if I need to resubmit this email with updated formatting prior to review.

Sincerely,
Isaac Vaughn

Signed-off-by: Isaac Vaughn <isaac.vaughn@knights.ucf.edu>
---

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Comments

Borislav Petkov Sept. 4, 2019, 9:53 p.m. UTC | #1
Hi Isaac,

On Wed, Sep 04, 2019 at 09:13:47PM +0000, Isaac Vaughn wrote:
> I noticed the current EDAC driver doesn't support the new Zen 2 (model
> 70h) processors, so I patched the new device ids in. The changes are
> minimal, I merely extended the existing enums with information from
> the new models.

Makes sense to me.

@Yazen, ACK?

> This is my first kernel patch and I'm not sure I followed the guide
> (kernel.org/doc/html/v5.2/process/submitting-patches.html) correctly,
> so please let me know if I need to resubmit this email with updated
> formatting prior to review.

Sure, you're almost there but it needs to have a title and a commit
message. If you need an example, look at how a similar patch to yours is
formatted:

6e846239e548 ("EDAC/amd64: Add Family 17h Model 30h PCI IDs")

Here's a web URL too in case you don't know how to work the git thing :)

https://git.kernel.org/linus/6e846239e5487cbb89ac8192d5f11437d010130e

That is, if you want to learn how to do patches at all. Otherwise, I can
fix it up for ya.

Leaving in the rest for Yazen.

> Signed-off-by: Isaac Vaughn <isaac.vaughn@knights.ucf.edu>
> ---
> 
> diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
> index 873437be86d9..a35c97f9100a 100644
> --- a/drivers/edac/amd64_edac.c
> +++ b/drivers/edac/amd64_edac.c
> @@ -2253,6 +2253,15 @@ static struct amd64_family_type family_types[] = {
>                         .dbam_to_cs             = f17_base_addr_to_cs_size,
>                 }
>         },
> + [F17_M70H_CPUS] = {
> +         .ctl_name = F17h_M70h,
> +         .f0_id = PCI_DEVICE_ID_AMD_17H_M70H_DF_F0,
> +         .f6_id = PCI_DEVICE_ID_AMD_17H_M70H_DF_F6,
> +         .ops = {
> +                 .early_channel_count        = f17_early_channel_count,
> +                 .dbam_to_cs         = f17_base_addr_to_cs_size,
> +         }
> + },

You need to fix the tabbing here to look like the other struct
assignments above.

>  };
>  
>  /*
> @@ -3241,6 +3250,10 @@ static struct amd64_family_type *per_family_init(struct amd64_pvt *pvt)
>                         fam_type = &family_types[F17_M30H_CPUS];
>                         pvt->ops = &family_types[F17_M30H_CPUS].ops;
>                         break;
> +         } else if (pvt->model >= 0x70 && pvt->model <= 0x7f) {
> +                 fam_type = &family_types[F17_M70H_CPUS];
> +                 pvt->ops = &family_types[F17_M70H_CPUS].ops;
> +                 break;
>                 }

Here too. Your "else if" needs to have the same indentation as the one above.

>                 /* fall through */
>         case 0x18:
> diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
> index 8f66472f7adc..1adf7ddbf744 100644
> --- a/drivers/edac/amd64_edac.h
> +++ b/drivers/edac/amd64_edac.h
> @@ -119,6 +119,8 @@
>  #define PCI_DEVICE_ID_AMD_17H_M10H_DF_F6 0x15ee
>  #define PCI_DEVICE_ID_AMD_17H_M30H_DF_F0 0x1490
>  #define PCI_DEVICE_ID_AMD_17H_M30H_DF_F6 0x1496
> +#define PCI_DEVICE_ID_AMD_17H_M70H_DF_F0 0x1440
> +#define PCI_DEVICE_ID_AMD_17H_M70H_DF_F6 0x1446
>  
>  /*
>   * Function 1 - Address Map
> @@ -285,6 +287,7 @@ enum amd_families {
>         F17_CPUS,
>         F17_M10H_CPUS,
>         F17_M30H_CPUS,
> + F17_M70H_CPUS,

And that too.

Depending on the text editor, you can show the whitespace characters on each
line and then make sure they're the same as on the lines above it. For example
with vim you do

":set list"

and that would show you:

^I^I} else if (pvt->model >= 0x30 && pvt->model <= 0x3f) {$ 
^I^I^Ifam_type = &family_types[F17_M30H_CPUS];$
^I^I^Ipvt->ops = &family_types[F17_M30H_CPUS].ops;$
^I^I^Ibreak;$
         } else if (pvt->model >= 0x70 && pvt->model <= 0x7f) {$
                 fam_type = &family_types[F17_M70H_CPUS];$
                 pvt->ops = &family_types[F17_M70H_CPUS].ops;$
                 break;$
^I^I}$


and you can immediately see the difference. We use tabs in the kernel,
which appear here as ^I and you have spaces, thus the difference in
indentation.

There's a checker script in the kernel source directory you can use:

$ ./scripts/checkpatch.pl /tmp/isaac.01
WARNING: please, no spaces at the start of a line
#34: FILE: drivers/edac/amd64_edac.c:2256:
+ [F17_M70H_CPUS] = {$

ERROR: code indent should use tabs where possible
#35: FILE: drivers/edac/amd64_edac.c:2257:
+         .ctl_name = F17h_M70h,$

WARNING: please, no spaces at the start of a line
#35: FILE: drivers/edac/amd64_edac.c:2257:
+         .ctl_name = F17h_M70h,$

ERROR: code indent should use tabs where possible
#36: FILE: drivers/edac/amd64_edac.c:2258:
+         .f0_id = PCI_DEVICE_ID_AMD_17H_M70H_DF_F0,$

...

which would show you what is wrong with the patch.

And finally, here some more links which you might find useful:

https://www.kernel.org/doc/html/v5.2/process/coding-style.html
https://kernelnewbies.org/

That is, if you want to get involved in doing the patches thing :-)

Thx and have fun!
Yazen Ghannam Sept. 4, 2019, 10:21 p.m. UTC | #2
> -----Original Message-----
> From: linux-edac-owner@vger.kernel.org <linux-edac-owner@vger.kernel.org> On Behalf Of Borislav Petkov
> Sent: Wednesday, September 4, 2019 4:53 PM
> To: Isaac Vaughn <isaac.vaughn@Knights.ucf.edu>; Ghannam, Yazen <Yazen.Ghannam@amd.com>
> Cc: trivial@kernel.org; linux-edac@vger.kernel.org
> Subject: Re: [PATCH] amd64_edac - Add Family 17h Model 70h PCI IDs
> 
> Hi Isaac,
> 
> On Wed, Sep 04, 2019 at 09:13:47PM +0000, Isaac Vaughn wrote:
> > I noticed the current EDAC driver doesn't support the new Zen 2 (model
> > 70h) processors, so I patched the new device ids in. The changes are
> > minimal, I merely extended the existing enums with information from
> > the new models.
> 
> Makes sense to me.
> 
> @Yazen, ACK?

The new PCI IDs are correct. However, we also need Device 18h Function 3
for amd64_edac_mod to function. I don't see a commit upstream that adds
this.

Isaac,
Could you please add the Function 3 as well? Please see the following for
reference.

be3518a16ef2 ("x86/amd_nb: Add PCI device IDs for family 17h, model 30h")

Thank you!

-Yazen
Isaac Vaughn Sept. 5, 2019, 1:21 a.m. UTC | #3
Add the new Family 17h Model 70h PCI IDs (device 18h functions 0, 3, 4, and 6) to the kernel, the hwmon module, and the AMD64 EDAC module.

Signed-off-by: Isaac Vaughn <isaac.vaughn@knights.ucf.edu>
---
Changes to the amd64_edac were tested on 5.2.11 and the current patch was tested on 5.3.0rc7. Since git's pager has been mangling my indentation, diffs were generated with the '--no-pager' option. (Not sure if this might make output non-standard in some other way.)

 arch/x86/kernel/amd_nb.c  |  5 +++++
 drivers/edac/amd64_edac.c | 13 +++++++++++++
 drivers/edac/amd64_edac.h |  3 +++
 drivers/hwmon/k10temp.c   |  1 +
 include/linux/pci_ids.h   |  1 +
 5 files changed, 23 insertions(+)

diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index d63e63b7d1d9..08cc057126ba 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -18,9 +18,11 @@
 #define PCI_DEVICE_ID_AMD_17H_ROOT     0x1450
 #define PCI_DEVICE_ID_AMD_17H_M10H_ROOT        0x15d0
 #define PCI_DEVICE_ID_AMD_17H_M30H_ROOT        0x1480
+#define PCI_DEVICE_ID_AMD_17H_M70H_ROOT        0x1480
 #define PCI_DEVICE_ID_AMD_17H_DF_F4    0x1464
 #define PCI_DEVICE_ID_AMD_17H_M10H_DF_F4 0x15ec
 #define PCI_DEVICE_ID_AMD_17H_M30H_DF_F4 0x1494
+#define PCI_DEVICE_ID_AMD_17H_M70H_DF_F4 0x1444
 
 /* Protect the PCI config register pairs used for SMN and DF indirect access. */
 static DEFINE_MUTEX(smn_mutex);
@@ -31,6 +33,7 @@ static const struct pci_device_id amd_root_ids[] = {
        { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_ROOT) },
        { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M10H_ROOT) },
        { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M30H_ROOT) },
+       { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M70H_ROOT) },
        {}
 };
 
@@ -49,6 +52,7 @@ const struct pci_device_id amd_nb_misc_ids[] = {
        { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_DF_F3) },
        { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M10H_DF_F3) },
        { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M30H_DF_F3) },
+       { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M70H_DF_F3) },
        { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CNB17H_F3) },
        {}
 };
@@ -63,6 +67,7 @@ static const struct pci_device_id amd_nb_link_ids[] = {
        { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_DF_F4) },
        { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M10H_DF_F4) },
        { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M30H_DF_F4) },
+       { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M70H_DF_F4) },
        { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CNB17H_F4) },
        {}
 };
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 873437be86d9..a35c97f9100a 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -2253,6 +2253,15 @@ static struct amd64_family_type family_types[] = {
                        .dbam_to_cs             = f17_base_addr_to_cs_size,
                }
        },
+       [F17_M70H_CPUS] = {
+               .ctl_name = "F17h_M70h",
+               .f0_id = PCI_DEVICE_ID_AMD_17H_M70H_DF_F0,
+               .f6_id = PCI_DEVICE_ID_AMD_17H_M70H_DF_F6,
+               .ops = {
+                       .early_channel_count    = f17_early_channel_count,
+                       .dbam_to_cs             = f17_base_addr_to_cs_size,
+               }
+       },
 };
 
 /*
@@ -3241,6 +3250,10 @@ static struct amd64_family_type *per_family_init(struct amd64_pvt *pvt)
                        fam_type = &family_types[F17_M30H_CPUS];
                        pvt->ops = &family_types[F17_M30H_CPUS].ops;
                        break;
+               } else if (pvt->model >= 0x70 && pvt->model <= 0x7f) {
+                       fam_type = &family_types[F17_M70H_CPUS];
+                       pvt->ops = &family_types[F17_M70H_CPUS].ops;
+                       break;
                }
                /* fall through */
        case 0x18:
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
index 8f66472f7adc..1adf7ddbf744 100644
--- a/drivers/edac/amd64_edac.h
+++ b/drivers/edac/amd64_edac.h
@@ -119,6 +119,8 @@
 #define PCI_DEVICE_ID_AMD_17H_M10H_DF_F6 0x15ee
 #define PCI_DEVICE_ID_AMD_17H_M30H_DF_F0 0x1490
 #define PCI_DEVICE_ID_AMD_17H_M30H_DF_F6 0x1496
+#define PCI_DEVICE_ID_AMD_17H_M70H_DF_F0 0x1440
+#define PCI_DEVICE_ID_AMD_17H_M70H_DF_F6 0x1446
 
 /*
  * Function 1 - Address Map
@@ -285,6 +287,7 @@ enum amd_families {
        F17_CPUS,
        F17_M10H_CPUS,
        F17_M30H_CPUS,
+       F17_M70H_CPUS,
        NUM_FAMILIES,
 };
 
diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
index c77e89239dcd..5c1dddde193c 100644
--- a/drivers/hwmon/k10temp.c
+++ b/drivers/hwmon/k10temp.c
@@ -349,6 +349,7 @@ static const struct pci_device_id k10temp_id_table[] = {
        { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_DF_F3) },
        { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M10H_DF_F3) },
        { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M30H_DF_F3) },
+       { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M70H_DF_F3) },
        { PCI_VDEVICE(HYGON, PCI_DEVICE_ID_AMD_17H_DF_F3) },
        {}
 };
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index c842735a4f45..4b97f427cc92 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -548,6 +548,7 @@
 #define PCI_DEVICE_ID_AMD_17H_DF_F3    0x1463
 #define PCI_DEVICE_ID_AMD_17H_M10H_DF_F3 0x15eb
 #define PCI_DEVICE_ID_AMD_17H_M30H_DF_F3 0x1493
+#define PCI_DEVICE_ID_AMD_17H_M70H_DF_F3 0x1443
 #define PCI_DEVICE_ID_AMD_CNB17H_F3    0x1703
 #define PCI_DEVICE_ID_AMD_LANCE                0x2000
 #define PCI_DEVICE_ID_AMD_LANCE_HOME   0x2001
Borislav Petkov Sept. 5, 2019, 7:09 a.m. UTC | #4
On Thu, Sep 05, 2019 at 01:21:40AM +0000, Isaac Vaughn wrote:
> Add the new Family 17h Model 70h PCI IDs (device 18h functions 0, 3, 4, and 6) to the kernel, the hwmon module, and the AMD64 EDAC module.
> 
> Signed-off-by: Isaac Vaughn <isaac.vaughn@knights.ucf.edu>
> ---
> Changes to the amd64_edac were tested on 5.2.11 and the current patch was tested on 5.3.0rc7. Since git's pager has been mangling my indentation, diffs were generated with the '--no-pager' option. (Not sure if this might make output non-standard in some other way.)
> 

That's probably because this is not how you generate patches with git.
Please have a look at one of the countless tutorials on the web how to
do that. The gist of it is, you do:

$ git commit -a -s
 <write commit message, add SOB etc>
$ git format-patch -1 -o /tmp/

and send the filename as an email or you use

$ git send-email -1 ...

depending on what you would like to do. Just note that git send-email
can spam people quickly so I'd suggest using the --dry-run option there
first. :)

The tutorials and the manpages of the respective commands will give you
more detail about what they all do and what options to use.

But before you do that, you need to fix your indentation because that
still is wrong. Use that script checkpatch.pl to verify your patch and
send it only then when it doesn't complain about spaces anymore, see
below.

Oh, and pls add those PCI IDs to drivers/edac/amd64_edac.h, not to
pci_ids.h because they will be used by the amd64_edac driver only for
now so they don't need to go into the system-wide header.

Thanks!

$ ./scripts/checkpatch.pl /tmp/isaac.vaughn.02
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line)
#14: 
Add the new Family 17h Model 70h PCI IDs (device 18h functions 0, 3, 4, and 6) to the kernel, the hwmon module, and the AMD64 EDAC module.

WARNING: please, no spaces at the start of a line
#47: FILE: arch/x86/kernel/amd_nb.c:36:
+       { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M70H_ROOT) },$

WARNING: please, no spaces at the start of a line
#55: FILE: arch/x86/kernel/amd_nb.c:55:
+       { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M70H_DF_F3) },$

WARNING: please, no spaces at the start of a line
#63: FILE: arch/x86/kernel/amd_nb.c:70:
+       { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M70H_DF_F4) },$

WARNING: please, no spaces at the start of a line
#75: FILE: drivers/edac/amd64_edac.c:2256:
+       [F17_M70H_CPUS] = {$
...
Isaac Vaughn Sept. 5, 2019, 1:17 p.m. UTC | #5
> Oh, and pls add those PCI IDs to drivers/edac/amd64_edac.h, not to
 > pci_ids.h because they will be used by the amd64_edac driver only for
 > now so they don't need to go into the system-wide header.
Does this apply to all the PCI IDs? Functions 0 and 6 are in amd64_edac.h, but some of the additional IDs had model 30h equivalents in different places. For the additional IDs Yazen pointed out, I imitated the changes from commit be3518a16ef270e3b030a6ae96055f83f51bd3dd (x86/amd_nb: Add PCI device IDs for family 17h, model 30h).

Sincerely,
Isaac Vaughn
Borislav Petkov Sept. 5, 2019, 1:54 p.m. UTC | #6
On Thu, Sep 05, 2019 at 01:17:46PM +0000, Isaac Vaughn wrote:
>  > Oh, and pls add those PCI IDs to drivers/edac/amd64_edac.h, not to
>  > pci_ids.h because they will be used by the amd64_edac driver only for
>  > now so they don't need to go into the system-wide header.
> Does this apply to all the PCI IDs?

This applies to PCI IDs which are used by a single driver only. They
go in its header. If something else needs them, then they get moved to
pci_ids.h.
diff mbox series

Patch

diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 873437be86d9..a35c97f9100a 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -2253,6 +2253,15 @@  static struct amd64_family_type family_types[] = {
                        .dbam_to_cs             = f17_base_addr_to_cs_size,
                }
        },
+ [F17_M70H_CPUS] = {
+         .ctl_name = F17h_M70h,
+         .f0_id = PCI_DEVICE_ID_AMD_17H_M70H_DF_F0,
+         .f6_id = PCI_DEVICE_ID_AMD_17H_M70H_DF_F6,
+         .ops = {
+                 .early_channel_count        = f17_early_channel_count,
+                 .dbam_to_cs         = f17_base_addr_to_cs_size,
+         }
+ },
 };
 
 /*
@@ -3241,6 +3250,10 @@  static struct amd64_family_type *per_family_init(struct amd64_pvt *pvt)
                        fam_type = &family_types[F17_M30H_CPUS];
                        pvt->ops = &family_types[F17_M30H_CPUS].ops;
                        break;
+         } else if (pvt->model >= 0x70 && pvt->model <= 0x7f) {
+                 fam_type = &family_types[F17_M70H_CPUS];
+                 pvt->ops = &family_types[F17_M70H_CPUS].ops;
+                 break;
                }
                /* fall through */
        case 0x18:
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
index 8f66472f7adc..1adf7ddbf744 100644
--- a/drivers/edac/amd64_edac.h
+++ b/drivers/edac/amd64_edac.h
@@ -119,6 +119,8 @@ 
 #define PCI_DEVICE_ID_AMD_17H_M10H_DF_F6 0x15ee
 #define PCI_DEVICE_ID_AMD_17H_M30H_DF_F0 0x1490
 #define PCI_DEVICE_ID_AMD_17H_M30H_DF_F6 0x1496
+#define PCI_DEVICE_ID_AMD_17H_M70H_DF_F0 0x1440
+#define PCI_DEVICE_ID_AMD_17H_M70H_DF_F6 0x1446
 
 /*
  * Function 1 - Address Map
@@ -285,6 +287,7 @@  enum amd_families {
        F17_CPUS,
        F17_M10H_CPUS,
        F17_M30H_CPUS,
+ F17_M70H_CPUS,
        NUM_FAMILIES,
 };