[PATCH v2 0/4] Update DF/SMN access and k10temp for AMD F17h M30h

[PATCH v2 0/4] Update DF/SMN access and k10temp for AMD F17h M30h

[Woods, Brian]

Updates the data fabric/system management network code needed to get
k10temp working for M30h.  Since there are now processors which have
multiple roots per DF/SMN interface, there needs to some logic which
skips N-1 root complexes per DF/SMN interface.  This is because the root
complexes per interface are redundant (as far as DF/SMN goes).  These
changes shouldn't effect past processors and, for F17h M0Xh, the
mappings stay the same.

v1 -> v2:
  * patch 3 & 4: add M30_DF_F3 straight to pci_ids.h to reduce churn
  * patch 2:
    - update commit msg and comment to explain root selection further
    - move return if !misc_count under where misc_count is calculated

Brian Woods (4):
  k10temp: x86/amd_nb: consolidate shared device IDs
  x86/amd_nb: add support for newer PCI topologies
  x86/amd_nb: add PCI device IDs for F17h M30h
  hwmon: k10temp: add support for AMD F17h M30h CPUs

 arch/x86/kernel/amd_nb.c | 53 ++++++++++++++++++++++++++++++++++++++++--------
 drivers/hwmon/k10temp.c  | 10 ++-------
 include/linux/pci_ids.h  |  3 +++
 3 files changed, 50 insertions(+), 16 deletions(-)

-- 
2.11.0

[PATCH v2 1/4] k10temp: x86/amd_nb: consolidate shared device IDs

[Woods, Brian]

Consolidate shared PCI_DEVICE_IDs that were scattered through k10temp
and amd_nb, and move them into pci_ids.

Signed-off-by: Brian Woods <brian.woods@amd.com>
---
 arch/x86/kernel/amd_nb.c | 3 +--
 drivers/hwmon/k10temp.c  | 9 +--------
 include/linux/pci_ids.h  | 2 ++
 3 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index a6eca647bc76..19d489ee2b1e 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -11,13 +11,12 @@
 #include <linux/errno.h>
 #include <linux/export.h>
 #include <linux/spinlock.h>
+#include <linux/pci_ids.h>
 #include <asm/amd_nb.h>
 
 #define PCI_DEVICE_ID_AMD_17H_ROOT	0x1450
 #define PCI_DEVICE_ID_AMD_17H_M10H_ROOT	0x15d0
-#define PCI_DEVICE_ID_AMD_17H_DF_F3	0x1463
 #define PCI_DEVICE_ID_AMD_17H_DF_F4	0x1464
-#define PCI_DEVICE_ID_AMD_17H_M10H_DF_F3 0x15eb
 #define PCI_DEVICE_ID_AMD_17H_M10H_DF_F4 0x15ec
 
 /* Protect the PCI config register pairs used for SMN and DF indirect access. */
diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
index 2cef0c37ff6f..bc6871c8dd4e 100644
--- a/drivers/hwmon/k10temp.c
+++ b/drivers/hwmon/k10temp.c
@@ -23,6 +23,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/pci.h>
+#include <linux/pci_ids.h>
 #include <asm/amd_nb.h>
 #include <asm/processor.h>
 
@@ -41,14 +42,6 @@ static DEFINE_MUTEX(nb_smu_ind_mutex);
 #define PCI_DEVICE_ID_AMD_15H_M70H_NB_F3	0x15b3
 #endif
 
-#ifndef PCI_DEVICE_ID_AMD_17H_DF_F3
-#define PCI_DEVICE_ID_AMD_17H_DF_F3	0x1463
-#endif
-
-#ifndef PCI_DEVICE_ID_AMD_17H_M10H_DF_F3
-#define PCI_DEVICE_ID_AMD_17H_M10H_DF_F3	0x15eb
-#endif
-
 /* CPUID function 0x80000001, ebx */
 #define CPUID_PKGTYPE_MASK	0xf0000000
 #define CPUID_PKGTYPE_F		0x00000000
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 69f0abe1ba1a..78d5cd29778a 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -545,6 +545,8 @@
 #define PCI_DEVICE_ID_AMD_16H_NB_F4	0x1534
 #define PCI_DEVICE_ID_AMD_16H_M30H_NB_F3 0x1583
 #define PCI_DEVICE_ID_AMD_16H_M30H_NB_F4 0x1584
+#define PCI_DEVICE_ID_AMD_17H_DF_F3	0x1463
+#define PCI_DEVICE_ID_AMD_17H_M10H_DF_F3 0x15eb
 #define PCI_DEVICE_ID_AMD_CNB17H_F3	0x1703
 #define PCI_DEVICE_ID_AMD_LANCE		0x2000
 #define PCI_DEVICE_ID_AMD_LANCE_HOME	0x2001
-- 
2.11.0

[PATCH v2 2/4] x86/amd_nb: add support for newer PCI topologies

[Woods, Brian]

Add support for new processors which have multiple PCI root complexes
per data fabric/system management network interface.  If there are (N)
multiple PCI roots per DF/SMN interface, then the PCI roots are
redundant (as far as SMN/DF access goes).  For each DF/SMN interface:
map to the first available PCI root and skip the next N-1 PCI roots so
the following DF/SMN interface get mapped to a correct PCI root.

Ex:
DF/SMN 0 -> 60
	    40
	    20
	    00
DF/SMN 1 -> e0
	    c0
	    a0
	    80

Signed-off-by: Brian Woods <brian.woods@amd.com>
---
 arch/x86/kernel/amd_nb.c | 44 ++++++++++++++++++++++++++++++++++++++------
 1 file changed, 38 insertions(+), 6 deletions(-)

diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index 19d489ee2b1e..cc34266e3c62 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -213,7 +213,10 @@ int amd_cache_northbridges(void)
 	const struct pci_device_id *root_ids = amd_root_ids;
 	struct pci_dev *root, *misc, *link;
 	struct amd_northbridge *nb;
-	u16 i = 0;
+	u16 roots_per_misc = 0;
+	u16 misc_count = 0;
+	u16 root_count = 0;
+	u16 i, j;
 
 	if (amd_northbridges.num)
 		return 0;
@@ -226,26 +229,55 @@ int amd_cache_northbridges(void)
 
 	misc = NULL;
 	while ((misc = next_northbridge(misc, misc_ids)) != NULL)
-		i++;
+		misc_count++;
 
-	if (!i)
+	if (!misc_count)
 		return -ENODEV;
 
-	nb = kcalloc(i, sizeof(struct amd_northbridge), GFP_KERNEL);
+	root = NULL;
+	while ((root = next_northbridge(root, root_ids)) != NULL)
+		root_count++;
+
+	if (root_count) {
+		roots_per_misc = root_count / misc_count;
+
+		/*
+		 * There should be _exactly_ N roots for each DF/SMN
+		 * interface.
+		 */
+		if (!roots_per_misc || (root_count % roots_per_misc)) {
+			pr_info("Unsupported AMD DF/PCI configuration found\n");
+			return -ENODEV;
+		}
+	}
+
+	nb = kcalloc(misc_count, sizeof(struct amd_northbridge), GFP_KERNEL);
 	if (!nb)
 		return -ENOMEM;
 
 	amd_northbridges.nb = nb;
-	amd_northbridges.num = i;
+	amd_northbridges.num = misc_count;
 
 	link = misc = root = NULL;
-	for (i = 0; i != amd_northbridges.num; i++) {
+	for (i = 0; i < amd_northbridges.num; i++) {
 		node_to_amd_nb(i)->root = root =
 			next_northbridge(root, root_ids);
 		node_to_amd_nb(i)->misc = misc =
 			next_northbridge(misc, misc_ids);
 		node_to_amd_nb(i)->link = link =
 			next_northbridge(link, link_ids);
+
+		/*
+		 * If there are more PCI root devices than data fabric/
+		 * system management network interfaces, then the (N)
+		 * PCI roots per DF/SMN interface are functionally the
+		 * same (for DF/SMN access) and N-1 are redundant.  N-1
+		 * PCI roots should be skipped per DF/SMN interface so
+		 * the following DF/SMN interfaces get mapped to
+		 * correct PCI roots.
+		 */
+		for (j = 1; j < roots_per_misc; j++)
+			root = next_northbridge(root, root_ids);
 	}
 
 	if (amd_gart_present())
-- 
2.11.0

[PATCH v2 3/4] x86/amd_nb: add PCI device IDs for F17h M30h

[Woods, Brian]

Add the PCI device IDs for family 17h model 30h, since they are needed
for accessing various registers via the data fabric/SMN interface.

Signed-off-by: Brian Woods <brian.woods@amd.com>
---
 arch/x86/kernel/amd_nb.c | 6 ++++++
 include/linux/pci_ids.h  | 1 +
 2 files changed, 7 insertions(+)

diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index cc34266e3c62..cc51275c8759 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -16,8 +16,10 @@
 
 #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_DF_F4	0x1464
 #define PCI_DEVICE_ID_AMD_17H_M10H_DF_F4 0x15ec
+#define PCI_DEVICE_ID_AMD_17H_M30H_DF_F4 0x1494
 
 /* Protect the PCI config register pairs used for SMN and DF indirect access. */
 static DEFINE_MUTEX(smn_mutex);
@@ -27,9 +29,11 @@ static u32 *flush_words;
 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) },
 	{}
 };
 
+
 #define PCI_DEVICE_ID_AMD_CNB17H_F4     0x1704
 
 const struct pci_device_id amd_nb_misc_ids[] = {
@@ -43,6 +47,7 @@ const struct pci_device_id amd_nb_misc_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_16H_M30H_NB_F3) },
 	{ 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_CNB17H_F3) },
 	{}
 };
@@ -56,6 +61,7 @@ static const struct pci_device_id amd_nb_link_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_16H_M30H_NB_F4) },
 	{ 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_CNB17H_F4) },
 	{}
 };
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 78d5cd29778a..349276fbd269 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -547,6 +547,7 @@
 #define PCI_DEVICE_ID_AMD_16H_M30H_NB_F4 0x1584
 #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_CNB17H_F3	0x1703
 #define PCI_DEVICE_ID_AMD_LANCE		0x2000
 #define PCI_DEVICE_ID_AMD_LANCE_HOME	0x2001
-- 
2.11.0

[PATCH v2 4/4] hwmon: k10temp: add support for AMD F17h M30h CPUs

[Woods, Brian]

Add support for AMD family 17h model 30h processors for k10temp.  Model
30h is functionally the same as model 01h processors (as far as k10temp
is concerned), just the PCI device IDs need to be updated.

Signed-off-by: Brian Woods <brian.woods@amd.com>
---
 drivers/hwmon/k10temp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
index bc6871c8dd4e..9790f1f5eb98 100644
--- a/drivers/hwmon/k10temp.c
+++ b/drivers/hwmon/k10temp.c
@@ -360,6 +360,7 @@ static const struct pci_device_id k10temp_id_table[] = {
 	{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_16H_M30H_NB_F3) },
 	{ 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) },
 	{}
 };
 MODULE_DEVICE_TABLE(pci, k10temp_id_table);
-- 
2.11.0

Re: [PATCH v2 1/4] k10temp: x86/amd_nb: consolidate shared device IDs

[Guenter Roeck]

On Tue, Nov 06, 2018 at 08:08:14PM +0000, Woods, Brian wrote:
> Consolidate shared PCI_DEVICE_IDs that were scattered through k10temp
> and amd_nb, and move them into pci_ids.
> 
> Signed-off-by: Brian Woods <brian.woods@amd.com>

For hwmon:

Acked-by: Guenter Roeck <linux@roeck-us.net>

> ---
>  arch/x86/kernel/amd_nb.c | 3 +--
>  drivers/hwmon/k10temp.c  | 9 +--------
>  include/linux/pci_ids.h  | 2 ++
>  3 files changed, 4 insertions(+), 10 deletions(-)
> 
> diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
> index a6eca647bc76..19d489ee2b1e 100644
> --- a/arch/x86/kernel/amd_nb.c
> +++ b/arch/x86/kernel/amd_nb.c
> @@ -11,13 +11,12 @@
>  #include <linux/errno.h>
>  #include <linux/export.h>
>  #include <linux/spinlock.h>
> +#include <linux/pci_ids.h>
>  #include <asm/amd_nb.h>
>  
>  #define PCI_DEVICE_ID_AMD_17H_ROOT	0x1450
>  #define PCI_DEVICE_ID_AMD_17H_M10H_ROOT	0x15d0
> -#define PCI_DEVICE_ID_AMD_17H_DF_F3	0x1463
>  #define PCI_DEVICE_ID_AMD_17H_DF_F4	0x1464
> -#define PCI_DEVICE_ID_AMD_17H_M10H_DF_F3 0x15eb
>  #define PCI_DEVICE_ID_AMD_17H_M10H_DF_F4 0x15ec
>  
>  /* Protect the PCI config register pairs used for SMN and DF indirect access. */
> diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
> index 2cef0c37ff6f..bc6871c8dd4e 100644
> --- a/drivers/hwmon/k10temp.c
> +++ b/drivers/hwmon/k10temp.c
> @@ -23,6 +23,7 @@
>  #include <linux/init.h>
>  #include <linux/module.h>
>  #include <linux/pci.h>
> +#include <linux/pci_ids.h>
>  #include <asm/amd_nb.h>
>  #include <asm/processor.h>
>  
> @@ -41,14 +42,6 @@ static DEFINE_MUTEX(nb_smu_ind_mutex);
>  #define PCI_DEVICE_ID_AMD_15H_M70H_NB_F3	0x15b3
>  #endif
>  
> -#ifndef PCI_DEVICE_ID_AMD_17H_DF_F3
> -#define PCI_DEVICE_ID_AMD_17H_DF_F3	0x1463
> -#endif
> -
> -#ifndef PCI_DEVICE_ID_AMD_17H_M10H_DF_F3
> -#define PCI_DEVICE_ID_AMD_17H_M10H_DF_F3	0x15eb
> -#endif
> -
>  /* CPUID function 0x80000001, ebx */
>  #define CPUID_PKGTYPE_MASK	0xf0000000
>  #define CPUID_PKGTYPE_F		0x00000000
> diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
> index 69f0abe1ba1a..78d5cd29778a 100644
> --- a/include/linux/pci_ids.h
> +++ b/include/linux/pci_ids.h
> @@ -545,6 +545,8 @@
>  #define PCI_DEVICE_ID_AMD_16H_NB_F4	0x1534
>  #define PCI_DEVICE_ID_AMD_16H_M30H_NB_F3 0x1583
>  #define PCI_DEVICE_ID_AMD_16H_M30H_NB_F4 0x1584
> +#define PCI_DEVICE_ID_AMD_17H_DF_F3	0x1463
> +#define PCI_DEVICE_ID_AMD_17H_M10H_DF_F3 0x15eb
>  #define PCI_DEVICE_ID_AMD_CNB17H_F3	0x1703
>  #define PCI_DEVICE_ID_AMD_LANCE		0x2000
>  #define PCI_DEVICE_ID_AMD_LANCE_HOME	0x2001
> -- 
> 2.11.0
> 

Re: [PATCH v2 4/4] hwmon: k10temp: add support for AMD F17h M30h CPUs

[Guenter Roeck]

On Tue, Nov 06, 2018 at 08:08:21PM +0000, Woods, Brian wrote:
> Add support for AMD family 17h model 30h processors for k10temp.  Model
> 30h is functionally the same as model 01h processors (as far as k10temp
> is concerned), just the PCI device IDs need to be updated.
> 
> Signed-off-by: Brian Woods <brian.woods@amd.com>

Acked-by: Guenter Roeck <linux@roeck-us.net>

> ---
>  drivers/hwmon/k10temp.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
> index bc6871c8dd4e..9790f1f5eb98 100644
> --- a/drivers/hwmon/k10temp.c
> +++ b/drivers/hwmon/k10temp.c
> @@ -360,6 +360,7 @@ static const struct pci_device_id k10temp_id_table[] = {
>  	{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_16H_M30H_NB_F3) },
>  	{ 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) },
>  	{}
>  };
>  MODULE_DEVICE_TABLE(pci, k10temp_id_table);
> -- 
> 2.11.0
> 

[tip:x86/amd-nb] hwmon/k10temp, x86/amd_nb: Consolidate shared device IDs

[tip-bot for Woods, Brian]

Commit-ID:  dedf7dce4cec5c0abe69f4fa6938d5100398220b
Gitweb:     https://git.kernel.org/tip/dedf7dce4cec5c0abe69f4fa6938d5100398220b
Author:     Woods, Brian <Brian.Woods@amd.com>
AuthorDate: Tue, 6 Nov 2018 20:08:14 +0000
Committer:  Borislav Petkov <bp@suse.de>
CommitDate: Wed, 7 Nov 2018 21:28:04 +0100

hwmon/k10temp, x86/amd_nb: Consolidate shared device IDs

Consolidate shared PCI_DEVICE_IDs that were scattered through k10temp
and amd_nb, and move them into pci_ids.

Signed-off-by: Brian Woods <brian.woods@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
CC: Bjorn Helgaas <bhelgaas@google.com>
CC: Clemens Ladisch <clemens@ladisch.de>
CC: "H. Peter Anvin" <hpa@zytor.com>
CC: Ingo Molnar <mingo@redhat.com>
CC: Jean Delvare <jdelvare@suse.com>
CC: Jia Zhang <qianyue.zj@alibaba-inc.com>
CC: <linux-hwmon@vger.kernel.org>
CC: <linux-pci@vger.kernel.org>
CC: Pu Wen <puwen@hygon.cn>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/20181106200754.60722-2-brian.woods@amd.com
---
 arch/x86/kernel/amd_nb.c | 3 +--
 drivers/hwmon/k10temp.c  | 9 +--------
 include/linux/pci_ids.h  | 2 ++
 3 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index a6eca647bc76..19d489ee2b1e 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -11,13 +11,12 @@
 #include <linux/errno.h>
 #include <linux/export.h>
 #include <linux/spinlock.h>
+#include <linux/pci_ids.h>
 #include <asm/amd_nb.h>
 
 #define PCI_DEVICE_ID_AMD_17H_ROOT	0x1450
 #define PCI_DEVICE_ID_AMD_17H_M10H_ROOT	0x15d0
-#define PCI_DEVICE_ID_AMD_17H_DF_F3	0x1463
 #define PCI_DEVICE_ID_AMD_17H_DF_F4	0x1464
-#define PCI_DEVICE_ID_AMD_17H_M10H_DF_F3 0x15eb
 #define PCI_DEVICE_ID_AMD_17H_M10H_DF_F4 0x15ec
 
 /* Protect the PCI config register pairs used for SMN and DF indirect access. */
diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
index 2cef0c37ff6f..bc6871c8dd4e 100644
--- a/drivers/hwmon/k10temp.c
+++ b/drivers/hwmon/k10temp.c
@@ -23,6 +23,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/pci.h>
+#include <linux/pci_ids.h>
 #include <asm/amd_nb.h>
 #include <asm/processor.h>
 
@@ -41,14 +42,6 @@ static DEFINE_MUTEX(nb_smu_ind_mutex);
 #define PCI_DEVICE_ID_AMD_15H_M70H_NB_F3	0x15b3
 #endif
 
-#ifndef PCI_DEVICE_ID_AMD_17H_DF_F3
-#define PCI_DEVICE_ID_AMD_17H_DF_F3	0x1463
-#endif
-
-#ifndef PCI_DEVICE_ID_AMD_17H_M10H_DF_F3
-#define PCI_DEVICE_ID_AMD_17H_M10H_DF_F3	0x15eb
-#endif
-
 /* CPUID function 0x80000001, ebx */
 #define CPUID_PKGTYPE_MASK	0xf0000000
 #define CPUID_PKGTYPE_F		0x00000000
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 69f0abe1ba1a..78d5cd29778a 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -545,6 +545,8 @@
 #define PCI_DEVICE_ID_AMD_16H_NB_F4	0x1534
 #define PCI_DEVICE_ID_AMD_16H_M30H_NB_F3 0x1583
 #define PCI_DEVICE_ID_AMD_16H_M30H_NB_F4 0x1584
+#define PCI_DEVICE_ID_AMD_17H_DF_F3	0x1463
+#define PCI_DEVICE_ID_AMD_17H_M10H_DF_F3 0x15eb
 #define PCI_DEVICE_ID_AMD_CNB17H_F3	0x1703
 #define PCI_DEVICE_ID_AMD_LANCE		0x2000
 #define PCI_DEVICE_ID_AMD_LANCE_HOME	0x2001

[tip:x86/amd-nb] x86/amd_nb: Add support for newer PCI topologies

[tip-bot for Woods, Brian]

Commit-ID:  556e4c62baffa71e2045a298379db7e57dd47f3d
Gitweb:     https://git.kernel.org/tip/556e4c62baffa71e2045a298379db7e57dd47f3d
Author:     Woods, Brian <Brian.Woods@amd.com>
AuthorDate: Tue, 6 Nov 2018 20:08:16 +0000
Committer:  Borislav Petkov <bp@suse.de>
CommitDate: Wed, 7 Nov 2018 21:28:29 +0100

x86/amd_nb: Add support for newer PCI topologies

Add support for new processors which have multiple PCI root complexes
per data fabric/system management network interface.  If there are (N)
multiple PCI roots per DF/SMN interface, then the PCI roots are
redundant (as far as SMN/DF access goes).  For each DF/SMN interface:
map to the first available PCI root and skip the next N-1 PCI roots so
the following DF/SMN interface get mapped to a correct PCI root.

Ex:
DF/SMN 0 -> 60
	    40
	    20
	    00
DF/SMN 1 -> e0
	    c0
	    a0
	    80

Signed-off-by: Brian Woods <brian.woods@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
CC: Bjorn Helgaas <bhelgaas@google.com>
CC: Clemens Ladisch <clemens@ladisch.de>
CC: Guenter Roeck <linux@roeck-us.net>
CC: "H. Peter Anvin" <hpa@zytor.com>
CC: Ingo Molnar <mingo@redhat.com>
CC: Jean Delvare <jdelvare@suse.com>
CC: Jia Zhang <qianyue.zj@alibaba-inc.com>
CC: <linux-hwmon@vger.kernel.org>
CC: <linux-pci@vger.kernel.org>
CC: Pu Wen <puwen@hygon.cn>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/20181106200754.60722-3-brian.woods@amd.com
---
 arch/x86/kernel/amd_nb.c | 44 ++++++++++++++++++++++++++++++++++++++------
 1 file changed, 38 insertions(+), 6 deletions(-)

diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index 19d489ee2b1e..cc34266e3c62 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -213,7 +213,10 @@ int amd_cache_northbridges(void)
 	const struct pci_device_id *root_ids = amd_root_ids;
 	struct pci_dev *root, *misc, *link;
 	struct amd_northbridge *nb;
-	u16 i = 0;
+	u16 roots_per_misc = 0;
+	u16 misc_count = 0;
+	u16 root_count = 0;
+	u16 i, j;
 
 	if (amd_northbridges.num)
 		return 0;
@@ -226,26 +229,55 @@ int amd_cache_northbridges(void)
 
 	misc = NULL;
 	while ((misc = next_northbridge(misc, misc_ids)) != NULL)
-		i++;
+		misc_count++;
 
-	if (!i)
+	if (!misc_count)
 		return -ENODEV;
 
-	nb = kcalloc(i, sizeof(struct amd_northbridge), GFP_KERNEL);
+	root = NULL;
+	while ((root = next_northbridge(root, root_ids)) != NULL)
+		root_count++;
+
+	if (root_count) {
+		roots_per_misc = root_count / misc_count;
+
+		/*
+		 * There should be _exactly_ N roots for each DF/SMN
+		 * interface.
+		 */
+		if (!roots_per_misc || (root_count % roots_per_misc)) {
+			pr_info("Unsupported AMD DF/PCI configuration found\n");
+			return -ENODEV;
+		}
+	}
+
+	nb = kcalloc(misc_count, sizeof(struct amd_northbridge), GFP_KERNEL);
 	if (!nb)
 		return -ENOMEM;
 
 	amd_northbridges.nb = nb;
-	amd_northbridges.num = i;
+	amd_northbridges.num = misc_count;
 
 	link = misc = root = NULL;
-	for (i = 0; i != amd_northbridges.num; i++) {
+	for (i = 0; i < amd_northbridges.num; i++) {
 		node_to_amd_nb(i)->root = root =
 			next_northbridge(root, root_ids);
 		node_to_amd_nb(i)->misc = misc =
 			next_northbridge(misc, misc_ids);
 		node_to_amd_nb(i)->link = link =
 			next_northbridge(link, link_ids);
+
+		/*
+		 * If there are more PCI root devices than data fabric/
+		 * system management network interfaces, then the (N)
+		 * PCI roots per DF/SMN interface are functionally the
+		 * same (for DF/SMN access) and N-1 are redundant.  N-1
+		 * PCI roots should be skipped per DF/SMN interface so
+		 * the following DF/SMN interfaces get mapped to
+		 * correct PCI roots.
+		 */
+		for (j = 1; j < roots_per_misc; j++)
+			root = next_northbridge(root, root_ids);
 	}
 
 	if (amd_gart_present())

[tip:x86/amd-nb] x86/amd_nb: Add PCI device IDs for family 17h, model 30h

[tip-bot for Woods, Brian]

Commit-ID:  be3518a16ef270e3b030a6ae96055f83f51bd3dd
Gitweb:     https://git.kernel.org/tip/be3518a16ef270e3b030a6ae96055f83f51bd3dd
Author:     Woods, Brian <Brian.Woods@amd.com>
AuthorDate: Tue, 6 Nov 2018 20:08:18 +0000
Committer:  Borislav Petkov <bp@suse.de>
CommitDate: Wed, 7 Nov 2018 21:36:09 +0100

x86/amd_nb: Add PCI device IDs for family 17h, model 30h

Add the PCI device IDs for family 17h model 30h, since they are needed
for accessing various registers via the data fabric/SMN interface.

Signed-off-by: Brian Woods <brian.woods@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
CC: Bjorn Helgaas <bhelgaas@google.com>
CC: Clemens Ladisch <clemens@ladisch.de>
CC: Guenter Roeck <linux@roeck-us.net>
CC: "H. Peter Anvin" <hpa@zytor.com>
CC: Ingo Molnar <mingo@redhat.com>
CC: Jean Delvare <jdelvare@suse.com>
CC: Jia Zhang <qianyue.zj@alibaba-inc.com>
CC: <linux-hwmon@vger.kernel.org>
CC: <linux-pci@vger.kernel.org>
CC: Pu Wen <puwen@hygon.cn>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/20181106200754.60722-4-brian.woods@amd.com
---
 arch/x86/kernel/amd_nb.c | 6 ++++++
 include/linux/pci_ids.h  | 1 +
 2 files changed, 7 insertions(+)

diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index cc34266e3c62..cc51275c8759 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -16,8 +16,10 @@
 
 #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_DF_F4	0x1464
 #define PCI_DEVICE_ID_AMD_17H_M10H_DF_F4 0x15ec
+#define PCI_DEVICE_ID_AMD_17H_M30H_DF_F4 0x1494
 
 /* Protect the PCI config register pairs used for SMN and DF indirect access. */
 static DEFINE_MUTEX(smn_mutex);
@@ -27,9 +29,11 @@ static u32 *flush_words;
 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) },
 	{}
 };
 
+
 #define PCI_DEVICE_ID_AMD_CNB17H_F4     0x1704
 
 const struct pci_device_id amd_nb_misc_ids[] = {
@@ -43,6 +47,7 @@ const struct pci_device_id amd_nb_misc_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_16H_M30H_NB_F3) },
 	{ 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_CNB17H_F3) },
 	{}
 };
@@ -56,6 +61,7 @@ static const struct pci_device_id amd_nb_link_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_16H_M30H_NB_F4) },
 	{ 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_CNB17H_F4) },
 	{}
 };
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 78d5cd29778a..349276fbd269 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -547,6 +547,7 @@
 #define PCI_DEVICE_ID_AMD_16H_M30H_NB_F4 0x1584
 #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_CNB17H_F3	0x1703
 #define PCI_DEVICE_ID_AMD_LANCE		0x2000
 #define PCI_DEVICE_ID_AMD_LANCE_HOME	0x2001

[tip:x86/amd-nb] hwmon/k10temp: Add support for AMD family 17h, model 30h CPUs

[tip-bot for Woods, Brian]

Commit-ID:  210ba1201ff950b3d05bfd8fa5d47540cea393c0
Gitweb:     https://git.kernel.org/tip/210ba1201ff950b3d05bfd8fa5d47540cea393c0
Author:     Woods, Brian <Brian.Woods@amd.com>
AuthorDate: Tue, 6 Nov 2018 20:08:21 +0000
Committer:  Borislav Petkov <bp@suse.de>
CommitDate: Wed, 7 Nov 2018 21:39:13 +0100

hwmon/k10temp: Add support for AMD family 17h, model 30h CPUs

Add support for AMD family 17h model 30h processors for k10temp. Model
30h is functionally the same as model 01h processors (as far as k10temp
is concerned), just the PCI device IDs need to be updated.

Signed-off-by: Brian Woods <brian.woods@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
CC: Bjorn Helgaas <bhelgaas@google.com>
CC: Clemens Ladisch <clemens@ladisch.de>
CC: "H. Peter Anvin" <hpa@zytor.com>
CC: Ingo Molnar <mingo@redhat.com>
CC: Jean Delvare <jdelvare@suse.com>
CC: Jia Zhang <qianyue.zj@alibaba-inc.com>
CC: <linux-hwmon@vger.kernel.org>
CC: <linux-pci@vger.kernel.org>
CC: Pu Wen <puwen@hygon.cn>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/20181106200754.60722-5-brian.woods@amd.com
---
 drivers/hwmon/k10temp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
index bc6871c8dd4e..9790f1f5eb98 100644
--- a/drivers/hwmon/k10temp.c
+++ b/drivers/hwmon/k10temp.c
@@ -360,6 +360,7 @@ static const struct pci_device_id k10temp_id_table[] = {
 	{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_16H_M30H_NB_F3) },
 	{ 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) },
 	{}
 };
 MODULE_DEVICE_TABLE(pci, k10temp_id_table);