[PATCH v7 00/15] ACPI NUMA support for ARM64

[PATCH v7 00/15] ACPI NUMA support for ARM64

[David Daney]

From: David Daney <david.daney@cavium.com>

Rebased to Linus' master branch at commit 1d6da87a3241 ("Merge branch
'drm-next' of git://people.freedesktop.org/~airlied/linux")

ACPI 5.1 already introduced NUMA support for ARM64, which can get the
NUMA domain information from SRAT and SLIT table, so parse those two
tables to get mappings from cpu/mem to numa node configuration and
system locality.

v7 updates:

 - Rebased to resolve one merge conflict.

 - New patch 13/15 to enable use of existing MADT parsing code instead
   of adding an additional implementation of the parser.

 - Added some Acked-by headers to patches in arm64 arch directories.

v6 updates:

 - Changed message printed in 13/14 to omit meaningless "cpu"
   number. (noted by Dennis Chen and Hanjun Guo)

 - New patch 7/14 to print different messages for NUMA disabled case.
   (noted by Dennis Chen)

 - Squashed two patches into 14/14.

 - Added Reviewed-by to 4/14

v5 updates:

 - Fixed ia64 build failure by gating some unused functions with #if
   CONFIG_{X86,ARM64}.

 - Fixed section mismatch errors for X86 case.

 - Removed unneeded #include from some files.

 - Tested to build cleanly on ARM64, X86_64, IA64

v4 updates:

 - Updated from Hanjun Guo's v3 patches.

 - Rebased on top of v16 of device-tree NUMA patches.

 - Reordered some of the changes so that we don't introduce code and
   then change it several times in the patch set.  New code is
   introduced in its final form.  Code reused from x86 is first moved
   with no change, and then a separate patch to make any needed
   changes.

 - code that is used only by ia64, moved to architecture specific
   files.

v3 updates:
 - Deep investigation about the ACPI_DEBUG_PRINT() and remvoe
   that for acpi/numa.c (patch 2/12)

 - Remove the duplicate NULL check for table print (patch 3/12)

 - Introduce CONFIG_ACPI_HAS_NUMA_ARCH_FIXUP to remove duplicate
   dummy function for acpi_numa_arch_fixup()

 - Solve the problem that the mapping from logical cpu to numa node
   is wrong which spotted out by Lorenzo

 - cleanups for x86 and move acpi_numa_slit_init() and some other
   functions to common place, then reduce the duplicate of x86
   and arm64 (patch 7-12/12).

 - rebased on top of 4.4 and Ganapat's v9 patch set.

David Daney (4):
  arm64, numa: Cleanup NUMA disabled messages.
  acpi, numa: move bad_srat() and srat_disabled() to
    drivers/acpi/numa.c
  acpi, numa, srat: Improve SRAT error detection and add messages.
  ACPI / processor: Add acpi_map_madt_entry().

Hanjun Guo (10):
  acpi, numa: Use pr_fmt() instead of printk
  acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()
  acpi, numa: remove duplicate NULL check
  acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c
  arm64, numa: rework numa_add_memblk()
  x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()
  acpi, numa: remove unneeded acpi_numa=1
  acpi, numa: Move acpi_numa_memory_affinity_init() to
    drivers/acpi/numa.c
  arm64, acpi, numa: NUMA support based on SRAT and SLIT
  acpi, numa: Enable ACPI based NUMA on ARM64

Robert Richter (1):
  acpi, numa: Move acpi_numa_arch_fixup() to ia64 only

 arch/arm64/include/asm/acpi.h |   8 ++
 arch/arm64/include/asm/numa.h |   2 +
 arch/arm64/kernel/Makefile    |   1 +
 arch/arm64/kernel/acpi_numa.c | 112 +++++++++++++++++++++
 arch/arm64/kernel/smp.c       |   2 +
 arch/arm64/mm/numa.c          |  28 ++++--
 arch/ia64/include/asm/acpi.h  |   3 +
 arch/ia64/kernel/acpi.c       |   2 +-
 arch/ia64/kernel/setup.c      |   1 +
 arch/x86/include/asm/acpi.h   |   1 -
 arch/x86/mm/numa.c            |   2 +-
 arch/x86/mm/srat.c            | 116 +---------------------
 drivers/acpi/Kconfig          |   4 +-
 drivers/acpi/numa.c           | 226 ++++++++++++++++++++++++++++++++----------
 drivers/acpi/processor_core.c |  26 ++++-
 drivers/of/of_numa.c          |   4 +-
 include/acpi/acpi_numa.h      |   4 +
 include/acpi/processor.h      |   1 +
 include/linux/acpi.h          |  18 +++-
 19 files changed, 369 insertions(+), 192 deletions(-)
 create mode 100644 arch/arm64/kernel/acpi_numa.c

-- 
1.7.11.7

[PATCH v7 00/15] ACPI NUMA support for ARM64

[David Daney]

From: David Daney <david.daney@cavium.com>

Rebased to Linus' master branch at commit 1d6da87a3241 ("Merge branch
'drm-next' of git://people.freedesktop.org/~airlied/linux")

ACPI 5.1 already introduced NUMA support for ARM64, which can get the
NUMA domain information from SRAT and SLIT table, so parse those two
tables to get mappings from cpu/mem to numa node configuration and
system locality.

v7 updates:

 - Rebased to resolve one merge conflict.

 - New patch 13/15 to enable use of existing MADT parsing code instead
   of adding an additional implementation of the parser.

 - Added some Acked-by headers to patches in arm64 arch directories.

v6 updates:

 - Changed message printed in 13/14 to omit meaningless "cpu"
   number. (noted by Dennis Chen and Hanjun Guo)

 - New patch 7/14 to print different messages for NUMA disabled case.
   (noted by Dennis Chen)

 - Squashed two patches into 14/14.

 - Added Reviewed-by to 4/14

v5 updates:

 - Fixed ia64 build failure by gating some unused functions with #if
   CONFIG_{X86,ARM64}.

 - Fixed section mismatch errors for X86 case.

 - Removed unneeded #include from some files.

 - Tested to build cleanly on ARM64, X86_64, IA64

v4 updates:

 - Updated from Hanjun Guo's v3 patches.

 - Rebased on top of v16 of device-tree NUMA patches.

 - Reordered some of the changes so that we don't introduce code and
   then change it several times in the patch set.  New code is
   introduced in its final form.  Code reused from x86 is first moved
   with no change, and then a separate patch to make any needed
   changes.

 - code that is used only by ia64, moved to architecture specific
   files.

v3 updates:
 - Deep investigation about the ACPI_DEBUG_PRINT() and remvoe
   that for acpi/numa.c (patch 2/12)

 - Remove the duplicate NULL check for table print (patch 3/12)

 - Introduce CONFIG_ACPI_HAS_NUMA_ARCH_FIXUP to remove duplicate
   dummy function for acpi_numa_arch_fixup()

 - Solve the problem that the mapping from logical cpu to numa node
   is wrong which spotted out by Lorenzo

 - cleanups for x86 and move acpi_numa_slit_init() and some other
   functions to common place, then reduce the duplicate of x86
   and arm64 (patch 7-12/12).

 - rebased on top of 4.4 and Ganapat's v9 patch set.

David Daney (4):
  arm64, numa: Cleanup NUMA disabled messages.
  acpi, numa: move bad_srat() and srat_disabled() to
    drivers/acpi/numa.c
  acpi, numa, srat: Improve SRAT error detection and add messages.
  ACPI / processor: Add acpi_map_madt_entry().

Hanjun Guo (10):
  acpi, numa: Use pr_fmt() instead of printk
  acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()
  acpi, numa: remove duplicate NULL check
  acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c
  arm64, numa: rework numa_add_memblk()
  x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()
  acpi, numa: remove unneeded acpi_numa=1
  acpi, numa: Move acpi_numa_memory_affinity_init() to
    drivers/acpi/numa.c
  arm64, acpi, numa: NUMA support based on SRAT and SLIT
  acpi, numa: Enable ACPI based NUMA on ARM64

Robert Richter (1):
  acpi, numa: Move acpi_numa_arch_fixup() to ia64 only

 arch/arm64/include/asm/acpi.h |   8 ++
 arch/arm64/include/asm/numa.h |   2 +
 arch/arm64/kernel/Makefile    |   1 +
 arch/arm64/kernel/acpi_numa.c | 112 +++++++++++++++++++++
 arch/arm64/kernel/smp.c       |   2 +
 arch/arm64/mm/numa.c          |  28 ++++--
 arch/ia64/include/asm/acpi.h  |   3 +
 arch/ia64/kernel/acpi.c       |   2 +-
 arch/ia64/kernel/setup.c      |   1 +
 arch/x86/include/asm/acpi.h   |   1 -
 arch/x86/mm/numa.c            |   2 +-
 arch/x86/mm/srat.c            | 116 +---------------------
 drivers/acpi/Kconfig          |   4 +-
 drivers/acpi/numa.c           | 226 ++++++++++++++++++++++++++++++++----------
 drivers/acpi/processor_core.c |  26 ++++-
 drivers/of/of_numa.c          |   4 +-
 include/acpi/acpi_numa.h      |   4 +
 include/acpi/processor.h      |   1 +
 include/linux/acpi.h          |  18 +++-
 19 files changed, 369 insertions(+), 192 deletions(-)
 create mode 100644 arch/arm64/kernel/acpi_numa.c

-- 
1.7.11.7

[PATCH v7 00/15] ACPI NUMA support for ARM64

[David Daney]

From: David Daney <david.daney@cavium.com>

Rebased to Linus' master branch at commit 1d6da87a3241 ("Merge branch
'drm-next' of git://people.freedesktop.org/~airlied/linux")

ACPI 5.1 already introduced NUMA support for ARM64, which can get the
NUMA domain information from SRAT and SLIT table, so parse those two
tables to get mappings from cpu/mem to numa node configuration and
system locality.

v7 updates:

 - Rebased to resolve one merge conflict.

 - New patch 13/15 to enable use of existing MADT parsing code instead
   of adding an additional implementation of the parser.

 - Added some Acked-by headers to patches in arm64 arch directories.

v6 updates:

 - Changed message printed in 13/14 to omit meaningless "cpu"
   number. (noted by Dennis Chen and Hanjun Guo)

 - New patch 7/14 to print different messages for NUMA disabled case.
   (noted by Dennis Chen)

 - Squashed two patches into 14/14.

 - Added Reviewed-by to 4/14

v5 updates:

 - Fixed ia64 build failure by gating some unused functions with #if
   CONFIG_{X86,ARM64}.

 - Fixed section mismatch errors for X86 case.

 - Removed unneeded #include from some files.

 - Tested to build cleanly on ARM64, X86_64, IA64

v4 updates:

 - Updated from Hanjun Guo's v3 patches.

 - Rebased on top of v16 of device-tree NUMA patches.

 - Reordered some of the changes so that we don't introduce code and
   then change it several times in the patch set.  New code is
   introduced in its final form.  Code reused from x86 is first moved
   with no change, and then a separate patch to make any needed
   changes.

 - code that is used only by ia64, moved to architecture specific
   files.

v3 updates:
 - Deep investigation about the ACPI_DEBUG_PRINT() and remvoe
   that for acpi/numa.c (patch 2/12)

 - Remove the duplicate NULL check for table print (patch 3/12)

 - Introduce CONFIG_ACPI_HAS_NUMA_ARCH_FIXUP to remove duplicate
   dummy function for acpi_numa_arch_fixup()

 - Solve the problem that the mapping from logical cpu to numa node
   is wrong which spotted out by Lorenzo

 - cleanups for x86 and move acpi_numa_slit_init() and some other
   functions to common place, then reduce the duplicate of x86
   and arm64 (patch 7-12/12).

 - rebased on top of 4.4 and Ganapat's v9 patch set.

David Daney (4):
  arm64, numa: Cleanup NUMA disabled messages.
  acpi, numa: move bad_srat() and srat_disabled() to
    drivers/acpi/numa.c
  acpi, numa, srat: Improve SRAT error detection and add messages.
  ACPI / processor: Add acpi_map_madt_entry().

Hanjun Guo (10):
  acpi, numa: Use pr_fmt() instead of printk
  acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()
  acpi, numa: remove duplicate NULL check
  acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c
  arm64, numa: rework numa_add_memblk()
  x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()
  acpi, numa: remove unneeded acpi_numa=1
  acpi, numa: Move acpi_numa_memory_affinity_init() to
    drivers/acpi/numa.c
  arm64, acpi, numa: NUMA support based on SRAT and SLIT
  acpi, numa: Enable ACPI based NUMA on ARM64

Robert Richter (1):
  acpi, numa: Move acpi_numa_arch_fixup() to ia64 only

 arch/arm64/include/asm/acpi.h |   8 ++
 arch/arm64/include/asm/numa.h |   2 +
 arch/arm64/kernel/Makefile    |   1 +
 arch/arm64/kernel/acpi_numa.c | 112 +++++++++++++++++++++
 arch/arm64/kernel/smp.c       |   2 +
 arch/arm64/mm/numa.c          |  28 ++++--
 arch/ia64/include/asm/acpi.h  |   3 +
 arch/ia64/kernel/acpi.c       |   2 +-
 arch/ia64/kernel/setup.c      |   1 +
 arch/x86/include/asm/acpi.h   |   1 -
 arch/x86/mm/numa.c            |   2 +-
 arch/x86/mm/srat.c            | 116 +---------------------
 drivers/acpi/Kconfig          |   4 +-
 drivers/acpi/numa.c           | 226 ++++++++++++++++++++++++++++++++----------
 drivers/acpi/processor_core.c |  26 ++++-
 drivers/of/of_numa.c          |   4 +-
 include/acpi/acpi_numa.h      |   4 +
 include/acpi/processor.h      |   1 +
 include/linux/acpi.h          |  18 +++-
 19 files changed, 369 insertions(+), 192 deletions(-)
 create mode 100644 arch/arm64/kernel/acpi_numa.c

-- 
1.7.11.7

[PATCH v7 01/15] acpi, numa: Use pr_fmt() instead of printk

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Just do some cleanups to replace printk with pr_fmt().

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 drivers/acpi/numa.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index d176e0e..bdb7622 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -18,6 +18,9 @@
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
  */
+
+#define pr_fmt(fmt) "ACPI: " fmt
+
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -28,8 +31,6 @@
 #include <linux/nodemask.h>
 #include <linux/topology.h>
 
-#define PREFIX "ACPI: "
-
 #define ACPI_NUMA	0x80000000
 #define _COMPONENT	ACPI_NUMA
 ACPI_MODULE_NAME("numa");
@@ -187,9 +188,8 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header)
 #endif				/* ACPI_DEBUG_OUTPUT */
 		break;
 	default:
-		printk(KERN_WARNING PREFIX
-		       "Found unsupported SRAT entry (type = 0x%x)\n",
-		       header->type);
+		pr_warn("Found unsupported SRAT entry (type = 0x%x)\n",
+			header->type);
 		break;
 	}
 }
@@ -222,7 +222,7 @@ static int __init acpi_parse_slit(struct acpi_table_header *table)
 	struct acpi_table_slit *slit = (struct acpi_table_slit *)table;
 
 	if (!slit_valid(slit)) {
-		printk(KERN_INFO "ACPI: SLIT table looks invalid. Not used.\n");
+		pr_info("SLIT table looks invalid. Not used.\n");
 		return -EINVAL;
 	}
 	acpi_numa_slit_init(slit);
@@ -233,12 +233,9 @@ static int __init acpi_parse_slit(struct acpi_table_header *table)
 void __init __weak
 acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
 {
-	printk(KERN_WARNING PREFIX
-	       "Found unsupported x2apic [0x%08x] SRAT entry\n", pa->apic_id);
-	return;
+	pr_warn("Found unsupported x2apic [0x%08x] SRAT entry\n", pa->apic_id);
 }
 
-
 static int __init
 acpi_parse_x2apic_affinity(struct acpi_subtable_header *header,
 			   const unsigned long end)
-- 
1.7.11.7

[PATCH v7 01/15] acpi, numa: Use pr_fmt() instead of printk

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Just do some cleanups to replace printk with pr_fmt().

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 drivers/acpi/numa.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index d176e0e..bdb7622 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -18,6 +18,9 @@
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
  */
+
+#define pr_fmt(fmt) "ACPI: " fmt
+
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -28,8 +31,6 @@
 #include <linux/nodemask.h>
 #include <linux/topology.h>
 
-#define PREFIX "ACPI: "
-
 #define ACPI_NUMA	0x80000000
 #define _COMPONENT	ACPI_NUMA
 ACPI_MODULE_NAME("numa");
@@ -187,9 +188,8 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header)
 #endif				/* ACPI_DEBUG_OUTPUT */
 		break;
 	default:
-		printk(KERN_WARNING PREFIX
-		       "Found unsupported SRAT entry (type = 0x%x)\n",
-		       header->type);
+		pr_warn("Found unsupported SRAT entry (type = 0x%x)\n",
+			header->type);
 		break;
 	}
 }
@@ -222,7 +222,7 @@ static int __init acpi_parse_slit(struct acpi_table_header *table)
 	struct acpi_table_slit *slit = (struct acpi_table_slit *)table;
 
 	if (!slit_valid(slit)) {
-		printk(KERN_INFO "ACPI: SLIT table looks invalid. Not used.\n");
+		pr_info("SLIT table looks invalid. Not used.\n");
 		return -EINVAL;
 	}
 	acpi_numa_slit_init(slit);
@@ -233,12 +233,9 @@ static int __init acpi_parse_slit(struct acpi_table_header *table)
 void __init __weak
 acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
 {
-	printk(KERN_WARNING PREFIX
-	       "Found unsupported x2apic [0x%08x] SRAT entry\n", pa->apic_id);
-	return;
+	pr_warn("Found unsupported x2apic [0x%08x] SRAT entry\n", pa->apic_id);
 }
 
-
 static int __init
 acpi_parse_x2apic_affinity(struct acpi_subtable_header *header,
 			   const unsigned long end)
-- 
1.7.11.7

[PATCH v7 01/15] acpi, numa: Use pr_fmt() instead of printk

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Just do some cleanups to replace printk with pr_fmt().

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 drivers/acpi/numa.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index d176e0e..bdb7622 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -18,6 +18,9 @@
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
  */
+
+#define pr_fmt(fmt) "ACPI: " fmt
+
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -28,8 +31,6 @@
 #include <linux/nodemask.h>
 #include <linux/topology.h>
 
-#define PREFIX "ACPI: "
-
 #define ACPI_NUMA	0x80000000
 #define _COMPONENT	ACPI_NUMA
 ACPI_MODULE_NAME("numa");
@@ -187,9 +188,8 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header)
 #endif				/* ACPI_DEBUG_OUTPUT */
 		break;
 	default:
-		printk(KERN_WARNING PREFIX
-		       "Found unsupported SRAT entry (type = 0x%x)\n",
-		       header->type);
+		pr_warn("Found unsupported SRAT entry (type = 0x%x)\n",
+			header->type);
 		break;
 	}
 }
@@ -222,7 +222,7 @@ static int __init acpi_parse_slit(struct acpi_table_header *table)
 	struct acpi_table_slit *slit = (struct acpi_table_slit *)table;
 
 	if (!slit_valid(slit)) {
-		printk(KERN_INFO "ACPI: SLIT table looks invalid. Not used.\n");
+		pr_info("SLIT table looks invalid. Not used.\n");
 		return -EINVAL;
 	}
 	acpi_numa_slit_init(slit);
@@ -233,12 +233,9 @@ static int __init acpi_parse_slit(struct acpi_table_header *table)
 void __init __weak
 acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
 {
-	printk(KERN_WARNING PREFIX
-	       "Found unsupported x2apic [0x%08x] SRAT entry\n", pa->apic_id);
-	return;
+	pr_warn("Found unsupported x2apic [0x%08x] SRAT entry\n", pa->apic_id);
 }
 
-
 static int __init
 acpi_parse_x2apic_affinity(struct acpi_subtable_header *header,
 			   const unsigned long end)
-- 
1.7.11.7

[PATCH v7 01/15] acpi, numa: Use pr_fmt() instead of printk

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Just do some cleanups to replace printk with pr_fmt().

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 drivers/acpi/numa.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index d176e0e..bdb7622 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -18,6 +18,9 @@
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
  */
+
+#define pr_fmt(fmt) "ACPI: " fmt
+
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -28,8 +31,6 @@
 #include <linux/nodemask.h>
 #include <linux/topology.h>
 
-#define PREFIX "ACPI: "
-
 #define ACPI_NUMA	0x80000000
 #define _COMPONENT	ACPI_NUMA
 ACPI_MODULE_NAME("numa");
@@ -187,9 +188,8 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header)
 #endif				/* ACPI_DEBUG_OUTPUT */
 		break;
 	default:
-		printk(KERN_WARNING PREFIX
-		       "Found unsupported SRAT entry (type = 0x%x)\n",
-		       header->type);
+		pr_warn("Found unsupported SRAT entry (type = 0x%x)\n",
+			header->type);
 		break;
 	}
 }
@@ -222,7 +222,7 @@ static int __init acpi_parse_slit(struct acpi_table_header *table)
 	struct acpi_table_slit *slit = (struct acpi_table_slit *)table;
 
 	if (!slit_valid(slit)) {
-		printk(KERN_INFO "ACPI: SLIT table looks invalid. Not used.\n");
+		pr_info("SLIT table looks invalid. Not used.\n");
 		return -EINVAL;
 	}
 	acpi_numa_slit_init(slit);
@@ -233,12 +233,9 @@ static int __init acpi_parse_slit(struct acpi_table_header *table)
 void __init __weak
 acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
 {
-	printk(KERN_WARNING PREFIX
-	       "Found unsupported x2apic [0x%08x] SRAT entry\n", pa->apic_id);
-	return;
+	pr_warn("Found unsupported x2apic [0x%08x] SRAT entry\n", pa->apic_id);
 }
 
-
 static int __init
 acpi_parse_x2apic_affinity(struct acpi_subtable_header *header,
 			   const unsigned long end)
-- 
1.7.11.7

[PATCH v7 02/15] acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

ACPI_DEBUG_PRINT is a bit fragile in acpi/numa.c, the first thing
is that component ACPI_NUMA(0x80000000) is not described in the
Documentation/acpi/debug.txt, and even not defined in the struct
acpi_dlayer acpi_debug_layers which we can not dynamically enable/disable
it with /sys/modules/acpi/parameters/debug_layer. another thing
is that ACPI_DEBUG_OUTPUT is controlled by ACPICA which not coordinate
well with ACPI drivers.

Replace ACPI_DEBUG_PRINT() with pr_debug() in this patch as pr_debug
will do the same thing for debug purpose and it can make the code much
cleaner, also remove the related code which not needed anymore if
ACPI_DEBUG_PRINT() is gone.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 drivers/acpi/numa.c | 59 +++++++++++++++++++----------------------------------
 1 file changed, 21 insertions(+), 38 deletions(-)

diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index bdb7622..a089c39 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -31,10 +31,6 @@
 #include <linux/nodemask.h>
 #include <linux/topology.h>
 
-#define ACPI_NUMA	0x80000000
-#define _COMPONENT	ACPI_NUMA
-ACPI_MODULE_NAME("numa");
-
 static nodemask_t nodes_found_map = NODE_MASK_NONE;
 
 /* maps to convert between proximity domain and logical node ID */
@@ -129,64 +125,51 @@ EXPORT_SYMBOL(acpi_map_pxm_to_online_node);
 static void __init
 acpi_table_print_srat_entry(struct acpi_subtable_header *header)
 {
-
-	ACPI_FUNCTION_NAME("acpi_table_print_srat_entry");
-
 	if (!header)
 		return;
 
 	switch (header->type) {
-
 	case ACPI_SRAT_TYPE_CPU_AFFINITY:
-#ifdef ACPI_DEBUG_OUTPUT
 		{
 			struct acpi_srat_cpu_affinity *p =
 			    (struct acpi_srat_cpu_affinity *)header;
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-					  "SRAT Processor (id[0x%02x] eid[0x%02x]) in proximity domain %d %s\n",
-					  p->apic_id, p->local_sapic_eid,
-					  p->proximity_domain_lo,
-					  (p->flags & ACPI_SRAT_CPU_ENABLED)?
-					  "enabled" : "disabled"));
+			pr_debug("SRAT Processor (id[0x%02x] eid[0x%02x]) in proximity domain %d %s\n",
+				 p->apic_id, p->local_sapic_eid,
+				 p->proximity_domain_lo,
+				 (p->flags & ACPI_SRAT_CPU_ENABLED) ?
+				 "enabled" : "disabled");
 		}
-#endif				/* ACPI_DEBUG_OUTPUT */
 		break;
 
 	case ACPI_SRAT_TYPE_MEMORY_AFFINITY:
-#ifdef ACPI_DEBUG_OUTPUT
 		{
 			struct acpi_srat_mem_affinity *p =
 			    (struct acpi_srat_mem_affinity *)header;
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-					  "SRAT Memory (0x%lx length 0x%lx) in proximity domain %d %s%s%s\n",
-					  (unsigned long)p->base_address,
-					  (unsigned long)p->length,
-					  p->proximity_domain,
-					  (p->flags & ACPI_SRAT_MEM_ENABLED)?
-					  "enabled" : "disabled",
-					  (p->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE)?
-					  " hot-pluggable" : "",
-					  (p->flags & ACPI_SRAT_MEM_NON_VOLATILE)?
-					  " non-volatile" : ""));
+			pr_debug("SRAT Memory (0x%lx length 0x%lx) in proximity domain %d %s%s%s\n",
+				 (unsigned long)p->base_address,
+				 (unsigned long)p->length,
+				 p->proximity_domain,
+				 (p->flags & ACPI_SRAT_MEM_ENABLED) ?
+				 "enabled" : "disabled",
+				 (p->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) ?
+				 " hot-pluggable" : "",
+				 (p->flags & ACPI_SRAT_MEM_NON_VOLATILE) ?
+				 " non-volatile" : "");
 		}
-#endif				/* ACPI_DEBUG_OUTPUT */
 		break;
 
 	case ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY:
-#ifdef ACPI_DEBUG_OUTPUT
 		{
 			struct acpi_srat_x2apic_cpu_affinity *p =
 			    (struct acpi_srat_x2apic_cpu_affinity *)header;
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-					  "SRAT Processor (x2apicid[0x%08x]) in"
-					  " proximity domain %d %s\n",
-					  p->apic_id,
-					  p->proximity_domain,
-					  (p->flags & ACPI_SRAT_CPU_ENABLED) ?
-					  "enabled" : "disabled"));
+			pr_debug("SRAT Processor (x2apicid[0x%08x]) in proximity domain %d %s\n",
+				 p->apic_id,
+				 p->proximity_domain,
+				 (p->flags & ACPI_SRAT_CPU_ENABLED) ?
+				 "enabled" : "disabled");
 		}
-#endif				/* ACPI_DEBUG_OUTPUT */
 		break;
+
 	default:
 		pr_warn("Found unsupported SRAT entry (type = 0x%x)\n",
 			header->type);
-- 
1.7.11.7

[PATCH v7 02/15] acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

ACPI_DEBUG_PRINT is a bit fragile in acpi/numa.c, the first thing
is that component ACPI_NUMA(0x80000000) is not described in the
Documentation/acpi/debug.txt, and even not defined in the struct
acpi_dlayer acpi_debug_layers which we can not dynamically enable/disable
it with /sys/modules/acpi/parameters/debug_layer. another thing
is that ACPI_DEBUG_OUTPUT is controlled by ACPICA which not coordinate
well with ACPI drivers.

Replace ACPI_DEBUG_PRINT() with pr_debug() in this patch as pr_debug
will do the same thing for debug purpose and it can make the code much
cleaner, also remove the related code which not needed anymore if
ACPI_DEBUG_PRINT() is gone.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 drivers/acpi/numa.c | 59 +++++++++++++++++++----------------------------------
 1 file changed, 21 insertions(+), 38 deletions(-)

diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index bdb7622..a089c39 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -31,10 +31,6 @@
 #include <linux/nodemask.h>
 #include <linux/topology.h>
 
-#define ACPI_NUMA	0x80000000
-#define _COMPONENT	ACPI_NUMA
-ACPI_MODULE_NAME("numa");
-
 static nodemask_t nodes_found_map = NODE_MASK_NONE;
 
 /* maps to convert between proximity domain and logical node ID */
@@ -129,64 +125,51 @@ EXPORT_SYMBOL(acpi_map_pxm_to_online_node);
 static void __init
 acpi_table_print_srat_entry(struct acpi_subtable_header *header)
 {
-
-	ACPI_FUNCTION_NAME("acpi_table_print_srat_entry");
-
 	if (!header)
 		return;
 
 	switch (header->type) {
-
 	case ACPI_SRAT_TYPE_CPU_AFFINITY:
-#ifdef ACPI_DEBUG_OUTPUT
 		{
 			struct acpi_srat_cpu_affinity *p =
 			    (struct acpi_srat_cpu_affinity *)header;
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-					  "SRAT Processor (id[0x%02x] eid[0x%02x]) in proximity domain %d %s\n",
-					  p->apic_id, p->local_sapic_eid,
-					  p->proximity_domain_lo,
-					  (p->flags & ACPI_SRAT_CPU_ENABLED)?
-					  "enabled" : "disabled"));
+			pr_debug("SRAT Processor (id[0x%02x] eid[0x%02x]) in proximity domain %d %s\n",
+				 p->apic_id, p->local_sapic_eid,
+				 p->proximity_domain_lo,
+				 (p->flags & ACPI_SRAT_CPU_ENABLED) ?
+				 "enabled" : "disabled");
 		}
-#endif				/* ACPI_DEBUG_OUTPUT */
 		break;
 
 	case ACPI_SRAT_TYPE_MEMORY_AFFINITY:
-#ifdef ACPI_DEBUG_OUTPUT
 		{
 			struct acpi_srat_mem_affinity *p =
 			    (struct acpi_srat_mem_affinity *)header;
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-					  "SRAT Memory (0x%lx length 0x%lx) in proximity domain %d %s%s%s\n",
-					  (unsigned long)p->base_address,
-					  (unsigned long)p->length,
-					  p->proximity_domain,
-					  (p->flags & ACPI_SRAT_MEM_ENABLED)?
-					  "enabled" : "disabled",
-					  (p->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE)?
-					  " hot-pluggable" : "",
-					  (p->flags & ACPI_SRAT_MEM_NON_VOLATILE)?
-					  " non-volatile" : ""));
+			pr_debug("SRAT Memory (0x%lx length 0x%lx) in proximity domain %d %s%s%s\n",
+				 (unsigned long)p->base_address,
+				 (unsigned long)p->length,
+				 p->proximity_domain,
+				 (p->flags & ACPI_SRAT_MEM_ENABLED) ?
+				 "enabled" : "disabled",
+				 (p->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) ?
+				 " hot-pluggable" : "",
+				 (p->flags & ACPI_SRAT_MEM_NON_VOLATILE) ?
+				 " non-volatile" : "");
 		}
-#endif				/* ACPI_DEBUG_OUTPUT */
 		break;
 
 	case ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY:
-#ifdef ACPI_DEBUG_OUTPUT
 		{
 			struct acpi_srat_x2apic_cpu_affinity *p =
 			    (struct acpi_srat_x2apic_cpu_affinity *)header;
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-					  "SRAT Processor (x2apicid[0x%08x]) in"
-					  " proximity domain %d %s\n",
-					  p->apic_id,
-					  p->proximity_domain,
-					  (p->flags & ACPI_SRAT_CPU_ENABLED) ?
-					  "enabled" : "disabled"));
+			pr_debug("SRAT Processor (x2apicid[0x%08x]) in proximity domain %d %s\n",
+				 p->apic_id,
+				 p->proximity_domain,
+				 (p->flags & ACPI_SRAT_CPU_ENABLED) ?
+				 "enabled" : "disabled");
 		}
-#endif				/* ACPI_DEBUG_OUTPUT */
 		break;
+
 	default:
 		pr_warn("Found unsupported SRAT entry (type = 0x%x)\n",
 			header->type);
-- 
1.7.11.7

[PATCH v7 02/15] acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

ACPI_DEBUG_PRINT is a bit fragile in acpi/numa.c, the first thing
is that component ACPI_NUMA(0x80000000) is not described in the
Documentation/acpi/debug.txt, and even not defined in the struct
acpi_dlayer acpi_debug_layers which we can not dynamically enable/disable
it with /sys/modules/acpi/parameters/debug_layer. another thing
is that ACPI_DEBUG_OUTPUT is controlled by ACPICA which not coordinate
well with ACPI drivers.

Replace ACPI_DEBUG_PRINT() with pr_debug() in this patch as pr_debug
will do the same thing for debug purpose and it can make the code much
cleaner, also remove the related code which not needed anymore if
ACPI_DEBUG_PRINT() is gone.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 drivers/acpi/numa.c | 59 +++++++++++++++++++----------------------------------
 1 file changed, 21 insertions(+), 38 deletions(-)

diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index bdb7622..a089c39 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -31,10 +31,6 @@
 #include <linux/nodemask.h>
 #include <linux/topology.h>
 
-#define ACPI_NUMA	0x80000000
-#define _COMPONENT	ACPI_NUMA
-ACPI_MODULE_NAME("numa");
-
 static nodemask_t nodes_found_map = NODE_MASK_NONE;
 
 /* maps to convert between proximity domain and logical node ID */
@@ -129,64 +125,51 @@ EXPORT_SYMBOL(acpi_map_pxm_to_online_node);
 static void __init
 acpi_table_print_srat_entry(struct acpi_subtable_header *header)
 {
-
-	ACPI_FUNCTION_NAME("acpi_table_print_srat_entry");
-
 	if (!header)
 		return;
 
 	switch (header->type) {
-
 	case ACPI_SRAT_TYPE_CPU_AFFINITY:
-#ifdef ACPI_DEBUG_OUTPUT
 		{
 			struct acpi_srat_cpu_affinity *p  			    (struct acpi_srat_cpu_affinity *)header;
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-					  "SRAT Processor (id[0x%02x] eid[0x%02x]) in proximity domain %d %s\n",
-					  p->apic_id, p->local_sapic_eid,
-					  p->proximity_domain_lo,
-					  (p->flags & ACPI_SRAT_CPU_ENABLED)?
-					  "enabled" : "disabled"));
+			pr_debug("SRAT Processor (id[0x%02x] eid[0x%02x]) in proximity domain %d %s\n",
+				 p->apic_id, p->local_sapic_eid,
+				 p->proximity_domain_lo,
+				 (p->flags & ACPI_SRAT_CPU_ENABLED) ?
+				 "enabled" : "disabled");
 		}
-#endif				/* ACPI_DEBUG_OUTPUT */
 		break;
 
 	case ACPI_SRAT_TYPE_MEMORY_AFFINITY:
-#ifdef ACPI_DEBUG_OUTPUT
 		{
 			struct acpi_srat_mem_affinity *p  			    (struct acpi_srat_mem_affinity *)header;
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-					  "SRAT Memory (0x%lx length 0x%lx) in proximity domain %d %s%s%s\n",
-					  (unsigned long)p->base_address,
-					  (unsigned long)p->length,
-					  p->proximity_domain,
-					  (p->flags & ACPI_SRAT_MEM_ENABLED)?
-					  "enabled" : "disabled",
-					  (p->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE)?
-					  " hot-pluggable" : "",
-					  (p->flags & ACPI_SRAT_MEM_NON_VOLATILE)?
-					  " non-volatile" : ""));
+			pr_debug("SRAT Memory (0x%lx length 0x%lx) in proximity domain %d %s%s%s\n",
+				 (unsigned long)p->base_address,
+				 (unsigned long)p->length,
+				 p->proximity_domain,
+				 (p->flags & ACPI_SRAT_MEM_ENABLED) ?
+				 "enabled" : "disabled",
+				 (p->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) ?
+				 " hot-pluggable" : "",
+				 (p->flags & ACPI_SRAT_MEM_NON_VOLATILE) ?
+				 " non-volatile" : "");
 		}
-#endif				/* ACPI_DEBUG_OUTPUT */
 		break;
 
 	case ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY:
-#ifdef ACPI_DEBUG_OUTPUT
 		{
 			struct acpi_srat_x2apic_cpu_affinity *p  			    (struct acpi_srat_x2apic_cpu_affinity *)header;
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-					  "SRAT Processor (x2apicid[0x%08x]) in"
-					  " proximity domain %d %s\n",
-					  p->apic_id,
-					  p->proximity_domain,
-					  (p->flags & ACPI_SRAT_CPU_ENABLED) ?
-					  "enabled" : "disabled"));
+			pr_debug("SRAT Processor (x2apicid[0x%08x]) in proximity domain %d %s\n",
+				 p->apic_id,
+				 p->proximity_domain,
+				 (p->flags & ACPI_SRAT_CPU_ENABLED) ?
+				 "enabled" : "disabled");
 		}
-#endif				/* ACPI_DEBUG_OUTPUT */
 		break;
+
 	default:
 		pr_warn("Found unsupported SRAT entry (type = 0x%x)\n",
 			header->type);
-- 
1.7.11.7

[PATCH v7 03/15] acpi, numa: remove duplicate NULL check

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

The argument "header" for acpi_table_print_srat_entry()
is always checked before the function is called, it's
duplicate to check it again, remove it.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 drivers/acpi/numa.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index a089c39..6f1cad8 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -125,9 +125,6 @@ EXPORT_SYMBOL(acpi_map_pxm_to_online_node);
 static void __init
 acpi_table_print_srat_entry(struct acpi_subtable_header *header)
 {
-	if (!header)
-		return;
-
 	switch (header->type) {
 	case ACPI_SRAT_TYPE_CPU_AFFINITY:
 		{
-- 
1.7.11.7

[PATCH v7 03/15] acpi, numa: remove duplicate NULL check

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

The argument "header" for acpi_table_print_srat_entry()
is always checked before the function is called, it's
duplicate to check it again, remove it.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 drivers/acpi/numa.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index a089c39..6f1cad8 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -125,9 +125,6 @@ EXPORT_SYMBOL(acpi_map_pxm_to_online_node);
 static void __init
 acpi_table_print_srat_entry(struct acpi_subtable_header *header)
 {
-	if (!header)
-		return;
-
 	switch (header->type) {
 	case ACPI_SRAT_TYPE_CPU_AFFINITY:
 		{
-- 
1.7.11.7

[PATCH v7 03/15] acpi, numa: remove duplicate NULL check

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

The argument "header" for acpi_table_print_srat_entry()
is always checked before the function is called, it's
duplicate to check it again, remove it.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 drivers/acpi/numa.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index a089c39..6f1cad8 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -125,9 +125,6 @@ EXPORT_SYMBOL(acpi_map_pxm_to_online_node);
 static void __init
 acpi_table_print_srat_entry(struct acpi_subtable_header *header)
 {
-	if (!header)
-		return;
-
 	switch (header->type) {
 	case ACPI_SRAT_TYPE_CPU_AFFINITY:
 		{
-- 
1.7.11.7

[PATCH v7 03/15] acpi, numa: remove duplicate NULL check

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

The argument "header" for acpi_table_print_srat_entry()
is always checked before the function is called, it's
duplicate to check it again, remove it.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 drivers/acpi/numa.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index a089c39..6f1cad8 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -125,9 +125,6 @@ EXPORT_SYMBOL(acpi_map_pxm_to_online_node);
 static void __init
 acpi_table_print_srat_entry(struct acpi_subtable_header *header)
 {
-	if (!header)
-		return;
-
 	switch (header->type) {
 	case ACPI_SRAT_TYPE_CPU_AFFINITY:
 		{
-- 
1.7.11.7

[PATCH v7 04/15] acpi, numa: Move acpi_numa_arch_fixup() to ia64 only

[David Daney]

From: Robert Richter <rrichter@cavium.com>

Since acpi_numa_arch_fixup() is only used in arch ia64, move it there
to make a generic interface easier. This avoids empty function stubs
or some complex kconfig options for x86 and arm64.

Signed-off-by: Robert Richter <rrichter@cavium.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/ia64/include/asm/acpi.h | 3 +++
 arch/ia64/kernel/acpi.c      | 2 +-
 arch/ia64/kernel/setup.c     | 1 +
 arch/x86/mm/srat.c           | 2 --
 drivers/acpi/numa.c          | 2 --
 include/linux/acpi.h         | 1 -
 6 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index aa0fdf1..a3d0211 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -140,6 +140,9 @@ static inline void per_cpu_scan_finalize(int min_cpus, int reserve_cpus)
 		}
 	}
 }
+
+extern void acpi_numa_fixup(void);
+
 #endif /* CONFIG_ACPI_NUMA */
 
 #endif /*__KERNEL__*/
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index b1698bc..92b7bc9 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -524,7 +524,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 	return 0;
 }
 
-void __init acpi_numa_arch_fixup(void)
+void __init acpi_numa_fixup(void)
 {
 	int i, j, node_from, node_to;
 
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 2029a38..afddb3e 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -552,6 +552,7 @@ setup_arch (char **cmdline_p)
 	early_acpi_boot_init();
 # ifdef CONFIG_ACPI_NUMA
 	acpi_numa_init();
+	acpi_numa_fixup();
 #  ifdef CONFIG_ACPI_HOTPLUG_CPU
 	prefill_possible_map();
 #  endif
diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index b5f8218..90b6ed9 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -212,8 +212,6 @@ out_err:
 	return -1;
 }
 
-void __init acpi_numa_arch_fixup(void) {}
-
 int __init x86_acpi_numa_init(void)
 {
 	int ret;
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 6f1cad8..fb2c0d6 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -324,8 +324,6 @@ int __init acpi_numa_init(void)
 	/* SLIT: System Locality Information Table */
 	acpi_table_parse(ACPI_SIG_SLIT, acpi_parse_slit);
 
-	acpi_numa_arch_fixup();
-
 	if (cnt < 0)
 		return cnt;
 	else if (!parsed_numa_memblks)
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 288fac5..8010b26 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -237,7 +237,6 @@ void acpi_numa_slit_init (struct acpi_table_slit *slit);
 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
-void acpi_numa_arch_fixup(void);
 
 #ifndef PHYS_CPUID_INVALID
 typedef u32 phys_cpuid_t;
-- 
1.7.11.7

[PATCH v7 04/15] acpi, numa: Move acpi_numa_arch_fixup() to ia64 only

[David Daney]

From: Robert Richter <rrichter@cavium.com>

Since acpi_numa_arch_fixup() is only used in arch ia64, move it there
to make a generic interface easier. This avoids empty function stubs
or some complex kconfig options for x86 and arm64.

Signed-off-by: Robert Richter <rrichter@cavium.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/ia64/include/asm/acpi.h | 3 +++
 arch/ia64/kernel/acpi.c      | 2 +-
 arch/ia64/kernel/setup.c     | 1 +
 arch/x86/mm/srat.c           | 2 --
 drivers/acpi/numa.c          | 2 --
 include/linux/acpi.h         | 1 -
 6 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index aa0fdf1..a3d0211 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -140,6 +140,9 @@ static inline void per_cpu_scan_finalize(int min_cpus, int reserve_cpus)
 		}
 	}
 }
+
+extern void acpi_numa_fixup(void);
+
 #endif /* CONFIG_ACPI_NUMA */
 
 #endif /*__KERNEL__*/
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index b1698bc..92b7bc9 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -524,7 +524,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 	return 0;
 }
 
-void __init acpi_numa_arch_fixup(void)
+void __init acpi_numa_fixup(void)
 {
 	int i, j, node_from, node_to;
 
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 2029a38..afddb3e 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -552,6 +552,7 @@ setup_arch (char **cmdline_p)
 	early_acpi_boot_init();
 # ifdef CONFIG_ACPI_NUMA
 	acpi_numa_init();
+	acpi_numa_fixup();
 #  ifdef CONFIG_ACPI_HOTPLUG_CPU
 	prefill_possible_map();
 #  endif
diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index b5f8218..90b6ed9 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -212,8 +212,6 @@ out_err:
 	return -1;
 }
 
-void __init acpi_numa_arch_fixup(void) {}
-
 int __init x86_acpi_numa_init(void)
 {
 	int ret;
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 6f1cad8..fb2c0d6 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -324,8 +324,6 @@ int __init acpi_numa_init(void)
 	/* SLIT: System Locality Information Table */
 	acpi_table_parse(ACPI_SIG_SLIT, acpi_parse_slit);
 
-	acpi_numa_arch_fixup();
-
 	if (cnt < 0)
 		return cnt;
 	else if (!parsed_numa_memblks)
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 288fac5..8010b26 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -237,7 +237,6 @@ void acpi_numa_slit_init (struct acpi_table_slit *slit);
 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
-void acpi_numa_arch_fixup(void);
 
 #ifndef PHYS_CPUID_INVALID
 typedef u32 phys_cpuid_t;
-- 
1.7.11.7

[PATCH v7 04/15] acpi, numa: Move acpi_numa_arch_fixup() to ia64 only

[David Daney]

From: Robert Richter <rrichter@cavium.com>

Since acpi_numa_arch_fixup() is only used in arch ia64, move it there
to make a generic interface easier. This avoids empty function stubs
or some complex kconfig options for x86 and arm64.

Signed-off-by: Robert Richter <rrichter@cavium.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/ia64/include/asm/acpi.h | 3 +++
 arch/ia64/kernel/acpi.c      | 2 +-
 arch/ia64/kernel/setup.c     | 1 +
 arch/x86/mm/srat.c           | 2 --
 drivers/acpi/numa.c          | 2 --
 include/linux/acpi.h         | 1 -
 6 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index aa0fdf1..a3d0211 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -140,6 +140,9 @@ static inline void per_cpu_scan_finalize(int min_cpus, int reserve_cpus)
 		}
 	}
 }
+
+extern void acpi_numa_fixup(void);
+
 #endif /* CONFIG_ACPI_NUMA */
 
 #endif /*__KERNEL__*/
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index b1698bc..92b7bc9 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -524,7 +524,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 	return 0;
 }
 
-void __init acpi_numa_arch_fixup(void)
+void __init acpi_numa_fixup(void)
 {
 	int i, j, node_from, node_to;
 
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 2029a38..afddb3e 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -552,6 +552,7 @@ setup_arch (char **cmdline_p)
 	early_acpi_boot_init();
 # ifdef CONFIG_ACPI_NUMA
 	acpi_numa_init();
+	acpi_numa_fixup();
 #  ifdef CONFIG_ACPI_HOTPLUG_CPU
 	prefill_possible_map();
 #  endif
diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index b5f8218..90b6ed9 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -212,8 +212,6 @@ out_err:
 	return -1;
 }
 
-void __init acpi_numa_arch_fixup(void) {}
-
 int __init x86_acpi_numa_init(void)
 {
 	int ret;
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 6f1cad8..fb2c0d6 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -324,8 +324,6 @@ int __init acpi_numa_init(void)
 	/* SLIT: System Locality Information Table */
 	acpi_table_parse(ACPI_SIG_SLIT, acpi_parse_slit);
 
-	acpi_numa_arch_fixup();
-
 	if (cnt < 0)
 		return cnt;
 	else if (!parsed_numa_memblks)
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 288fac5..8010b26 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -237,7 +237,6 @@ void acpi_numa_slit_init (struct acpi_table_slit *slit);
 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
-void acpi_numa_arch_fixup(void);
 
 #ifndef PHYS_CPUID_INVALID
 typedef u32 phys_cpuid_t;
-- 
1.7.11.7

[PATCH v7 04/15] acpi, numa: Move acpi_numa_arch_fixup() to ia64 only

[David Daney]

From: Robert Richter <rrichter@cavium.com>

Since acpi_numa_arch_fixup() is only used in arch ia64, move it there
to make a generic interface easier. This avoids empty function stubs
or some complex kconfig options for x86 and arm64.

Signed-off-by: Robert Richter <rrichter@cavium.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/ia64/include/asm/acpi.h | 3 +++
 arch/ia64/kernel/acpi.c      | 2 +-
 arch/ia64/kernel/setup.c     | 1 +
 arch/x86/mm/srat.c           | 2 --
 drivers/acpi/numa.c          | 2 --
 include/linux/acpi.h         | 1 -
 6 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index aa0fdf1..a3d0211 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -140,6 +140,9 @@ static inline void per_cpu_scan_finalize(int min_cpus, int reserve_cpus)
 		}
 	}
 }
+
+extern void acpi_numa_fixup(void);
+
 #endif /* CONFIG_ACPI_NUMA */
 
 #endif /*__KERNEL__*/
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index b1698bc..92b7bc9 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -524,7 +524,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 	return 0;
 }
 
-void __init acpi_numa_arch_fixup(void)
+void __init acpi_numa_fixup(void)
 {
 	int i, j, node_from, node_to;
 
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 2029a38..afddb3e 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -552,6 +552,7 @@ setup_arch (char **cmdline_p)
 	early_acpi_boot_init();
 # ifdef CONFIG_ACPI_NUMA
 	acpi_numa_init();
+	acpi_numa_fixup();
 #  ifdef CONFIG_ACPI_HOTPLUG_CPU
 	prefill_possible_map();
 #  endif
diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index b5f8218..90b6ed9 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -212,8 +212,6 @@ out_err:
 	return -1;
 }
 
-void __init acpi_numa_arch_fixup(void) {}
-
 int __init x86_acpi_numa_init(void)
 {
 	int ret;
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 6f1cad8..fb2c0d6 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -324,8 +324,6 @@ int __init acpi_numa_init(void)
 	/* SLIT: System Locality Information Table */
 	acpi_table_parse(ACPI_SIG_SLIT, acpi_parse_slit);
 
-	acpi_numa_arch_fixup();
-
 	if (cnt < 0)
 		return cnt;
 	else if (!parsed_numa_memblks)
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 288fac5..8010b26 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -237,7 +237,6 @@ void acpi_numa_slit_init (struct acpi_table_slit *slit);
 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
-void acpi_numa_arch_fixup(void);
 
 #ifndef PHYS_CPUID_INVALID
 typedef u32 phys_cpuid_t;
-- 
1.7.11.7

[PATCH v7 05/15] acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Identical implementations of acpi_numa_slit_init() are used by both
x86 and follow-on arm64 support.  Move it to drivers/acpi/numa.c, and
guard with CONFIG_X86 || CONFIG_ARM64 because ia64 has its own
architecture specific implementation.

No code change.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/x86/mm/srat.c  | 27 ---------------------------
 drivers/acpi/numa.c | 29 +++++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 27 deletions(-)

diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index 90b6ed9..f242a11 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -42,33 +42,6 @@ static __init inline int srat_disabled(void)
 	return acpi_numa < 0;
 }
 
-/*
- * Callback for SLIT parsing.  pxm_to_node() returns NUMA_NO_NODE for
- * I/O localities since SRAT does not list them.  I/O localities are
- * not supported at this point.
- */
-void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
-{
-	int i, j;
-
-	for (i = 0; i < slit->locality_count; i++) {
-		const int from_node = pxm_to_node(i);
-
-		if (from_node == NUMA_NO_NODE)
-			continue;
-
-		for (j = 0; j < slit->locality_count; j++) {
-			const int to_node = pxm_to_node(j);
-
-			if (to_node == NUMA_NO_NODE)
-				continue;
-
-			numa_set_distance(from_node, to_node,
-				slit->entry[slit->locality_count * i + j]);
-		}
-	}
-}
-
 /* Callback for Proximity Domain -> x2APIC mapping */
 void __init
 acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index fb2c0d6..7e0649d 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -197,6 +197,35 @@ static int __init slit_valid(struct acpi_table_slit *slit)
 	return 1;
 }
 
+#if defined(CONFIG_X86) || defined(CONFIG_ARM64)
+/*
+ * Callback for SLIT parsing.  pxm_to_node() returns NUMA_NO_NODE for
+ * I/O localities since SRAT does not list them.  I/O localities are
+ * not supported at this point.
+ */
+void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
+{
+	int i, j;
+
+	for (i = 0; i < slit->locality_count; i++) {
+		const int from_node = pxm_to_node(i);
+
+		if (from_node == NUMA_NO_NODE)
+			continue;
+
+		for (j = 0; j < slit->locality_count; j++) {
+			const int to_node = pxm_to_node(j);
+
+			if (to_node == NUMA_NO_NODE)
+				continue;
+
+			numa_set_distance(from_node, to_node,
+				slit->entry[slit->locality_count * i + j]);
+		}
+	}
+}
+#endif /* defined(CONFIG_X86) || defined (CONFIG_ARM64) */
+
 static int __init acpi_parse_slit(struct acpi_table_header *table)
 {
 	struct acpi_table_slit *slit = (struct acpi_table_slit *)table;
-- 
1.7.11.7

[PATCH v7 05/15] acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Identical implementations of acpi_numa_slit_init() are used by both
x86 and follow-on arm64 support.  Move it to drivers/acpi/numa.c, and
guard with CONFIG_X86 || CONFIG_ARM64 because ia64 has its own
architecture specific implementation.

No code change.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/x86/mm/srat.c  | 27 ---------------------------
 drivers/acpi/numa.c | 29 +++++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 27 deletions(-)

diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index 90b6ed9..f242a11 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -42,33 +42,6 @@ static __init inline int srat_disabled(void)
 	return acpi_numa < 0;
 }
 
-/*
- * Callback for SLIT parsing.  pxm_to_node() returns NUMA_NO_NODE for
- * I/O localities since SRAT does not list them.  I/O localities are
- * not supported at this point.
- */
-void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
-{
-	int i, j;
-
-	for (i = 0; i < slit->locality_count; i++) {
-		const int from_node = pxm_to_node(i);
-
-		if (from_node == NUMA_NO_NODE)
-			continue;
-
-		for (j = 0; j < slit->locality_count; j++) {
-			const int to_node = pxm_to_node(j);
-
-			if (to_node == NUMA_NO_NODE)
-				continue;
-
-			numa_set_distance(from_node, to_node,
-				slit->entry[slit->locality_count * i + j]);
-		}
-	}
-}
-
 /* Callback for Proximity Domain -> x2APIC mapping */
 void __init
 acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index fb2c0d6..7e0649d 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -197,6 +197,35 @@ static int __init slit_valid(struct acpi_table_slit *slit)
 	return 1;
 }
 
+#if defined(CONFIG_X86) || defined(CONFIG_ARM64)
+/*
+ * Callback for SLIT parsing.  pxm_to_node() returns NUMA_NO_NODE for
+ * I/O localities since SRAT does not list them.  I/O localities are
+ * not supported at this point.
+ */
+void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
+{
+	int i, j;
+
+	for (i = 0; i < slit->locality_count; i++) {
+		const int from_node = pxm_to_node(i);
+
+		if (from_node == NUMA_NO_NODE)
+			continue;
+
+		for (j = 0; j < slit->locality_count; j++) {
+			const int to_node = pxm_to_node(j);
+
+			if (to_node == NUMA_NO_NODE)
+				continue;
+
+			numa_set_distance(from_node, to_node,
+				slit->entry[slit->locality_count * i + j]);
+		}
+	}
+}
+#endif /* defined(CONFIG_X86) || defined (CONFIG_ARM64) */
+
 static int __init acpi_parse_slit(struct acpi_table_header *table)
 {
 	struct acpi_table_slit *slit = (struct acpi_table_slit *)table;
-- 
1.7.11.7

[PATCH v7 05/15] acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Identical implementations of acpi_numa_slit_init() are used by both
x86 and follow-on arm64 support.  Move it to drivers/acpi/numa.c, and
guard with CONFIG_X86 || CONFIG_ARM64 because ia64 has its own
architecture specific implementation.

No code change.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/x86/mm/srat.c  | 27 ---------------------------
 drivers/acpi/numa.c | 29 +++++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 27 deletions(-)

diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index 90b6ed9..f242a11 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -42,33 +42,6 @@ static __init inline int srat_disabled(void)
 	return acpi_numa < 0;
 }
 
-/*
- * Callback for SLIT parsing.  pxm_to_node() returns NUMA_NO_NODE for
- * I/O localities since SRAT does not list them.  I/O localities are
- * not supported@this point.
- */
-void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
-{
-	int i, j;
-
-	for (i = 0; i < slit->locality_count; i++) {
-		const int from_node = pxm_to_node(i);
-
-		if (from_node == NUMA_NO_NODE)
-			continue;
-
-		for (j = 0; j < slit->locality_count; j++) {
-			const int to_node = pxm_to_node(j);
-
-			if (to_node == NUMA_NO_NODE)
-				continue;
-
-			numa_set_distance(from_node, to_node,
-				slit->entry[slit->locality_count * i + j]);
-		}
-	}
-}
-
 /* Callback for Proximity Domain -> x2APIC mapping */
 void __init
 acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index fb2c0d6..7e0649d 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -197,6 +197,35 @@ static int __init slit_valid(struct acpi_table_slit *slit)
 	return 1;
 }
 
+#if defined(CONFIG_X86) || defined(CONFIG_ARM64)
+/*
+ * Callback for SLIT parsing.  pxm_to_node() returns NUMA_NO_NODE for
+ * I/O localities since SRAT does not list them.  I/O localities are
+ * not supported at this point.
+ */
+void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
+{
+	int i, j;
+
+	for (i = 0; i < slit->locality_count; i++) {
+		const int from_node = pxm_to_node(i);
+
+		if (from_node == NUMA_NO_NODE)
+			continue;
+
+		for (j = 0; j < slit->locality_count; j++) {
+			const int to_node = pxm_to_node(j);
+
+			if (to_node == NUMA_NO_NODE)
+				continue;
+
+			numa_set_distance(from_node, to_node,
+				slit->entry[slit->locality_count * i + j]);
+		}
+	}
+}
+#endif /* defined(CONFIG_X86) || defined (CONFIG_ARM64) */
+
 static int __init acpi_parse_slit(struct acpi_table_header *table)
 {
 	struct acpi_table_slit *slit = (struct acpi_table_slit *)table;
-- 
1.7.11.7

[PATCH v7 05/15] acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Identical implementations of acpi_numa_slit_init() are used by both
x86 and follow-on arm64 support.  Move it to drivers/acpi/numa.c, and
guard with CONFIG_X86 || CONFIG_ARM64 because ia64 has its own
architecture specific implementation.

No code change.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/x86/mm/srat.c  | 27 ---------------------------
 drivers/acpi/numa.c | 29 +++++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 27 deletions(-)

diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index 90b6ed9..f242a11 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -42,33 +42,6 @@ static __init inline int srat_disabled(void)
 	return acpi_numa < 0;
 }
 
-/*
- * Callback for SLIT parsing.  pxm_to_node() returns NUMA_NO_NODE for
- * I/O localities since SRAT does not list them.  I/O localities are
- * not supported at this point.
- */
-void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
-{
-	int i, j;
-
-	for (i = 0; i < slit->locality_count; i++) {
-		const int from_node = pxm_to_node(i);
-
-		if (from_node = NUMA_NO_NODE)
-			continue;
-
-		for (j = 0; j < slit->locality_count; j++) {
-			const int to_node = pxm_to_node(j);
-
-			if (to_node = NUMA_NO_NODE)
-				continue;
-
-			numa_set_distance(from_node, to_node,
-				slit->entry[slit->locality_count * i + j]);
-		}
-	}
-}
-
 /* Callback for Proximity Domain -> x2APIC mapping */
 void __init
 acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index fb2c0d6..7e0649d 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -197,6 +197,35 @@ static int __init slit_valid(struct acpi_table_slit *slit)
 	return 1;
 }
 
+#if defined(CONFIG_X86) || defined(CONFIG_ARM64)
+/*
+ * Callback for SLIT parsing.  pxm_to_node() returns NUMA_NO_NODE for
+ * I/O localities since SRAT does not list them.  I/O localities are
+ * not supported at this point.
+ */
+void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
+{
+	int i, j;
+
+	for (i = 0; i < slit->locality_count; i++) {
+		const int from_node = pxm_to_node(i);
+
+		if (from_node = NUMA_NO_NODE)
+			continue;
+
+		for (j = 0; j < slit->locality_count; j++) {
+			const int to_node = pxm_to_node(j);
+
+			if (to_node = NUMA_NO_NODE)
+				continue;
+
+			numa_set_distance(from_node, to_node,
+				slit->entry[slit->locality_count * i + j]);
+		}
+	}
+}
+#endif /* defined(CONFIG_X86) || defined (CONFIG_ARM64) */
+
 static int __init acpi_parse_slit(struct acpi_table_header *table)
 {
 	struct acpi_table_slit *slit = (struct acpi_table_slit *)table;
-- 
1.7.11.7

[PATCH v7 06/15] arm64, numa: rework numa_add_memblk()

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Rework numa_add_memblk() to update the parameter "u64 size" to "u64
end", this will make it consistent with x86 and simplifies the arm64
ACPI NUMA code to be added later.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/mm/numa.c | 12 ++++++------
 drivers/of/of_numa.c |  4 ++--
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 98dc104..6cb03f9 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -131,25 +131,25 @@ void __init early_map_cpu_to_node(unsigned int cpu, int nid)
  * numa_add_memblk - Set node id to memblk
  * @nid: NUMA node ID of the new memblk
  * @start: Start address of the new memblk
- * @size:  Size of the new memblk
+ * @end:  End address of the new memblk
  *
  * RETURNS:
  * 0 on success, -errno on failure.
  */
-int __init numa_add_memblk(int nid, u64 start, u64 size)
+int __init numa_add_memblk(int nid, u64 start, u64 end)
 {
 	int ret;
 
-	ret = memblock_set_node(start, size, &memblock.memory, nid);
+	ret = memblock_set_node(start, (end - start), &memblock.memory, nid);
 	if (ret < 0) {
 		pr_err("NUMA: memblock [0x%llx - 0x%llx] failed to add on node %d\n",
-			start, (start + size - 1), nid);
+			start, (end - 1), nid);
 		return ret;
 	}
 
 	node_set(nid, numa_nodes_parsed);
 	pr_info("NUMA: Adding memblock [0x%llx - 0x%llx] on node %d\n",
-			start, (start + size - 1), nid);
+			start, (end - 1), nid);
 	return ret;
 }
 
@@ -367,7 +367,7 @@ static int __init dummy_numa_init(void)
 	       0LLU, PFN_PHYS(max_pfn) - 1);
 
 	for_each_memblock(memory, mblk) {
-		ret = numa_add_memblk(0, mblk->base, mblk->size);
+		ret = numa_add_memblk(0, mblk->base, mblk->base + mblk->size);
 		if (!ret)
 			continue;
 
diff --git a/drivers/of/of_numa.c b/drivers/of/of_numa.c
index 0f2784b..ed5a097 100644
--- a/drivers/of/of_numa.c
+++ b/drivers/of/of_numa.c
@@ -91,8 +91,8 @@ static int __init of_numa_parse_memory_nodes(void)
 		pr_debug("NUMA:  base = %llx len = %llx, node = %u\n",
 			 rsrc.start, rsrc.end - rsrc.start + 1, nid);
 
-		r = numa_add_memblk(nid, rsrc.start,
-				    rsrc.end - rsrc.start + 1);
+
+		r = numa_add_memblk(nid, rsrc.start, rsrc.end + 1);
 		if (r)
 			break;
 	}
-- 
1.7.11.7

[PATCH v7 06/15] arm64, numa: rework numa_add_memblk()

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Rework numa_add_memblk() to update the parameter "u64 size" to "u64
end", this will make it consistent with x86 and simplifies the arm64
ACPI NUMA code to be added later.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/mm/numa.c | 12 ++++++------
 drivers/of/of_numa.c |  4 ++--
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 98dc104..6cb03f9 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -131,25 +131,25 @@ void __init early_map_cpu_to_node(unsigned int cpu, int nid)
  * numa_add_memblk - Set node id to memblk
  * @nid: NUMA node ID of the new memblk
  * @start: Start address of the new memblk
- * @size:  Size of the new memblk
+ * @end:  End address of the new memblk
  *
  * RETURNS:
  * 0 on success, -errno on failure.
  */
-int __init numa_add_memblk(int nid, u64 start, u64 size)
+int __init numa_add_memblk(int nid, u64 start, u64 end)
 {
 	int ret;
 
-	ret = memblock_set_node(start, size, &memblock.memory, nid);
+	ret = memblock_set_node(start, (end - start), &memblock.memory, nid);
 	if (ret < 0) {
 		pr_err("NUMA: memblock [0x%llx - 0x%llx] failed to add on node %d\n",
-			start, (start + size - 1), nid);
+			start, (end - 1), nid);
 		return ret;
 	}
 
 	node_set(nid, numa_nodes_parsed);
 	pr_info("NUMA: Adding memblock [0x%llx - 0x%llx] on node %d\n",
-			start, (start + size - 1), nid);
+			start, (end - 1), nid);
 	return ret;
 }
 
@@ -367,7 +367,7 @@ static int __init dummy_numa_init(void)
 	       0LLU, PFN_PHYS(max_pfn) - 1);
 
 	for_each_memblock(memory, mblk) {
-		ret = numa_add_memblk(0, mblk->base, mblk->size);
+		ret = numa_add_memblk(0, mblk->base, mblk->base + mblk->size);
 		if (!ret)
 			continue;
 
diff --git a/drivers/of/of_numa.c b/drivers/of/of_numa.c
index 0f2784b..ed5a097 100644
--- a/drivers/of/of_numa.c
+++ b/drivers/of/of_numa.c
@@ -91,8 +91,8 @@ static int __init of_numa_parse_memory_nodes(void)
 		pr_debug("NUMA:  base = %llx len = %llx, node = %u\n",
 			 rsrc.start, rsrc.end - rsrc.start + 1, nid);
 
-		r = numa_add_memblk(nid, rsrc.start,
-				    rsrc.end - rsrc.start + 1);
+
+		r = numa_add_memblk(nid, rsrc.start, rsrc.end + 1);
 		if (r)
 			break;
 	}
-- 
1.7.11.7

[PATCH v7 06/15] arm64, numa: rework numa_add_memblk()

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Rework numa_add_memblk() to update the parameter "u64 size" to "u64
end", this will make it consistent with x86 and simplifies the arm64
ACPI NUMA code to be added later.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/mm/numa.c | 12 ++++++------
 drivers/of/of_numa.c |  4 ++--
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 98dc104..6cb03f9 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -131,25 +131,25 @@ void __init early_map_cpu_to_node(unsigned int cpu, int nid)
  * numa_add_memblk - Set node id to memblk
  * @nid: NUMA node ID of the new memblk
  * @start: Start address of the new memblk
- * @size:  Size of the new memblk
+ * @end:  End address of the new memblk
  *
  * RETURNS:
  * 0 on success, -errno on failure.
  */
-int __init numa_add_memblk(int nid, u64 start, u64 size)
+int __init numa_add_memblk(int nid, u64 start, u64 end)
 {
 	int ret;
 
-	ret = memblock_set_node(start, size, &memblock.memory, nid);
+	ret = memblock_set_node(start, (end - start), &memblock.memory, nid);
 	if (ret < 0) {
 		pr_err("NUMA: memblock [0x%llx - 0x%llx] failed to add on node %d\n",
-			start, (start + size - 1), nid);
+			start, (end - 1), nid);
 		return ret;
 	}
 
 	node_set(nid, numa_nodes_parsed);
 	pr_info("NUMA: Adding memblock [0x%llx - 0x%llx] on node %d\n",
-			start, (start + size - 1), nid);
+			start, (end - 1), nid);
 	return ret;
 }
 
@@ -367,7 +367,7 @@ static int __init dummy_numa_init(void)
 	       0LLU, PFN_PHYS(max_pfn) - 1);
 
 	for_each_memblock(memory, mblk) {
-		ret = numa_add_memblk(0, mblk->base, mblk->size);
+		ret = numa_add_memblk(0, mblk->base, mblk->base + mblk->size);
 		if (!ret)
 			continue;
 
diff --git a/drivers/of/of_numa.c b/drivers/of/of_numa.c
index 0f2784b..ed5a097 100644
--- a/drivers/of/of_numa.c
+++ b/drivers/of/of_numa.c
@@ -91,8 +91,8 @@ static int __init of_numa_parse_memory_nodes(void)
 		pr_debug("NUMA:  base = %llx len = %llx, node = %u\n",
 			 rsrc.start, rsrc.end - rsrc.start + 1, nid);
 
-		r = numa_add_memblk(nid, rsrc.start,
-				    rsrc.end - rsrc.start + 1);
+
+		r = numa_add_memblk(nid, rsrc.start, rsrc.end + 1);
 		if (r)
 			break;
 	}
-- 
1.7.11.7

[PATCH v7 06/15] arm64, numa: rework numa_add_memblk()

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Rework numa_add_memblk() to update the parameter "u64 size" to "u64
end", this will make it consistent with x86 and simplifies the arm64
ACPI NUMA code to be added later.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/mm/numa.c | 12 ++++++------
 drivers/of/of_numa.c |  4 ++--
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 98dc104..6cb03f9 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -131,25 +131,25 @@ void __init early_map_cpu_to_node(unsigned int cpu, int nid)
  * numa_add_memblk - Set node id to memblk
  * @nid: NUMA node ID of the new memblk
  * @start: Start address of the new memblk
- * @size:  Size of the new memblk
+ * @end:  End address of the new memblk
  *
  * RETURNS:
  * 0 on success, -errno on failure.
  */
-int __init numa_add_memblk(int nid, u64 start, u64 size)
+int __init numa_add_memblk(int nid, u64 start, u64 end)
 {
 	int ret;
 
-	ret = memblock_set_node(start, size, &memblock.memory, nid);
+	ret = memblock_set_node(start, (end - start), &memblock.memory, nid);
 	if (ret < 0) {
 		pr_err("NUMA: memblock [0x%llx - 0x%llx] failed to add on node %d\n",
-			start, (start + size - 1), nid);
+			start, (end - 1), nid);
 		return ret;
 	}
 
 	node_set(nid, numa_nodes_parsed);
 	pr_info("NUMA: Adding memblock [0x%llx - 0x%llx] on node %d\n",
-			start, (start + size - 1), nid);
+			start, (end - 1), nid);
 	return ret;
 }
 
@@ -367,7 +367,7 @@ static int __init dummy_numa_init(void)
 	       0LLU, PFN_PHYS(max_pfn) - 1);
 
 	for_each_memblock(memory, mblk) {
-		ret = numa_add_memblk(0, mblk->base, mblk->size);
+		ret = numa_add_memblk(0, mblk->base, mblk->base + mblk->size);
 		if (!ret)
 			continue;
 
diff --git a/drivers/of/of_numa.c b/drivers/of/of_numa.c
index 0f2784b..ed5a097 100644
--- a/drivers/of/of_numa.c
+++ b/drivers/of/of_numa.c
@@ -91,8 +91,8 @@ static int __init of_numa_parse_memory_nodes(void)
 		pr_debug("NUMA:  base = %llx len = %llx, node = %u\n",
 			 rsrc.start, rsrc.end - rsrc.start + 1, nid);
 
-		r = numa_add_memblk(nid, rsrc.start,
-				    rsrc.end - rsrc.start + 1);
+
+		r = numa_add_memblk(nid, rsrc.start, rsrc.end + 1);
 		if (r)
 			break;
 	}
-- 
1.7.11.7

[PATCH v7 07/15] arm64, numa: Cleanup NUMA disabled messages.

[David Daney]

From: David Daney <david.daney@cavium.com>

As noted by Dennis Chen, we don't want to print "No NUMA configuration
found" if NUMA was forced off from the command line.

Change the type of numa_off to bool, and clean up printing code.
Print "NUMA disabled" if forced off on command line and "No NUMA
configuration found" if there was no firmware NUMA information.

Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/mm/numa.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 6cb03f9..1def1de 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -29,7 +29,7 @@ static int cpu_to_node_map[NR_CPUS] = { [0 ... NR_CPUS-1] = NUMA_NO_NODE };
 
 static int numa_distance_cnt;
 static u8 *numa_distance;
-static int numa_off;
+static bool numa_off;
 
 static __init int numa_parse_early_param(char *opt)
 {
@@ -37,7 +37,7 @@ static __init int numa_parse_early_param(char *opt)
 		return -EINVAL;
 	if (!strncmp(opt, "off", 3)) {
 		pr_info("%s\n", "NUMA turned off");
-		numa_off = 1;
+		numa_off = true;
 	}
 	return 0;
 }
@@ -362,7 +362,10 @@ static int __init dummy_numa_init(void)
 	int ret;
 	struct memblock_region *mblk;
 
-	pr_info("%s\n", "No NUMA configuration found");
+	if (numa_off)
+		pr_info("NUMA disabled\n"); /* Forced off on command line. */
+	else
+		pr_info("No NUMA configuration found\n");
 	pr_info("NUMA: Faking a node at [mem %#018Lx-%#018Lx]\n",
 	       0LLU, PFN_PHYS(max_pfn) - 1);
 
@@ -375,7 +378,7 @@ static int __init dummy_numa_init(void)
 		return ret;
 	}
 
-	numa_off = 1;
+	numa_off = true;
 	return 0;
 }
 
-- 
1.7.11.7

[PATCH v7 07/15] arm64, numa: Cleanup NUMA disabled messages.

[David Daney]

From: David Daney <david.daney@cavium.com>

As noted by Dennis Chen, we don't want to print "No NUMA configuration
found" if NUMA was forced off from the command line.

Change the type of numa_off to bool, and clean up printing code.
Print "NUMA disabled" if forced off on command line and "No NUMA
configuration found" if there was no firmware NUMA information.

Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/mm/numa.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 6cb03f9..1def1de 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -29,7 +29,7 @@ static int cpu_to_node_map[NR_CPUS] = { [0 ... NR_CPUS-1] = NUMA_NO_NODE };
 
 static int numa_distance_cnt;
 static u8 *numa_distance;
-static int numa_off;
+static bool numa_off;
 
 static __init int numa_parse_early_param(char *opt)
 {
@@ -37,7 +37,7 @@ static __init int numa_parse_early_param(char *opt)
 		return -EINVAL;
 	if (!strncmp(opt, "off", 3)) {
 		pr_info("%s\n", "NUMA turned off");
-		numa_off = 1;
+		numa_off = true;
 	}
 	return 0;
 }
@@ -362,7 +362,10 @@ static int __init dummy_numa_init(void)
 	int ret;
 	struct memblock_region *mblk;
 
-	pr_info("%s\n", "No NUMA configuration found");
+	if (numa_off)
+		pr_info("NUMA disabled\n"); /* Forced off on command line. */
+	else
+		pr_info("No NUMA configuration found\n");
 	pr_info("NUMA: Faking a node at [mem %#018Lx-%#018Lx]\n",
 	       0LLU, PFN_PHYS(max_pfn) - 1);
 
@@ -375,7 +378,7 @@ static int __init dummy_numa_init(void)
 		return ret;
 	}
 
-	numa_off = 1;
+	numa_off = true;
 	return 0;
 }
 
-- 
1.7.11.7

[PATCH v7 07/15] arm64, numa: Cleanup NUMA disabled messages.

[David Daney]

From: David Daney <david.daney@cavium.com>

As noted by Dennis Chen, we don't want to print "No NUMA configuration
found" if NUMA was forced off from the command line.

Change the type of numa_off to bool, and clean up printing code.
Print "NUMA disabled" if forced off on command line and "No NUMA
configuration found" if there was no firmware NUMA information.

Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/mm/numa.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 6cb03f9..1def1de 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -29,7 +29,7 @@ static int cpu_to_node_map[NR_CPUS] = { [0 ... NR_CPUS-1] = NUMA_NO_NODE };
 
 static int numa_distance_cnt;
 static u8 *numa_distance;
-static int numa_off;
+static bool numa_off;
 
 static __init int numa_parse_early_param(char *opt)
 {
@@ -37,7 +37,7 @@ static __init int numa_parse_early_param(char *opt)
 		return -EINVAL;
 	if (!strncmp(opt, "off", 3)) {
 		pr_info("%s\n", "NUMA turned off");
-		numa_off = 1;
+		numa_off = true;
 	}
 	return 0;
 }
@@ -362,7 +362,10 @@ static int __init dummy_numa_init(void)
 	int ret;
 	struct memblock_region *mblk;
 
-	pr_info("%s\n", "No NUMA configuration found");
+	if (numa_off)
+		pr_info("NUMA disabled\n"); /* Forced off on command line. */
+	else
+		pr_info("No NUMA configuration found\n");
 	pr_info("NUMA: Faking a node at [mem %#018Lx-%#018Lx]\n",
 	       0LLU, PFN_PHYS(max_pfn) - 1);
 
@@ -375,7 +378,7 @@ static int __init dummy_numa_init(void)
 		return ret;
 	}
 
-	numa_off = 1;
+	numa_off = true;
 	return 0;
 }
 
-- 
1.7.11.7

[PATCH v7 07/15] arm64, numa: Cleanup NUMA disabled messages.

[David Daney]

From: David Daney <david.daney@cavium.com>

As noted by Dennis Chen, we don't want to print "No NUMA configuration
found" if NUMA was forced off from the command line.

Change the type of numa_off to bool, and clean up printing code.
Print "NUMA disabled" if forced off on command line and "No NUMA
configuration found" if there was no firmware NUMA information.

Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/mm/numa.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 6cb03f9..1def1de 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -29,7 +29,7 @@ static int cpu_to_node_map[NR_CPUS] = { [0 ... NR_CPUS-1] = NUMA_NO_NODE };
 
 static int numa_distance_cnt;
 static u8 *numa_distance;
-static int numa_off;
+static bool numa_off;
 
 static __init int numa_parse_early_param(char *opt)
 {
@@ -37,7 +37,7 @@ static __init int numa_parse_early_param(char *opt)
 		return -EINVAL;
 	if (!strncmp(opt, "off", 3)) {
 		pr_info("%s\n", "NUMA turned off");
-		numa_off = 1;
+		numa_off = true;
 	}
 	return 0;
 }
@@ -362,7 +362,10 @@ static int __init dummy_numa_init(void)
 	int ret;
 	struct memblock_region *mblk;
 
-	pr_info("%s\n", "No NUMA configuration found");
+	if (numa_off)
+		pr_info("NUMA disabled\n"); /* Forced off on command line. */
+	else
+		pr_info("No NUMA configuration found\n");
 	pr_info("NUMA: Faking a node at [mem %#018Lx-%#018Lx]\n",
 	       0LLU, PFN_PHYS(max_pfn) - 1);
 
@@ -375,7 +378,7 @@ static int __init dummy_numa_init(void)
 		return ret;
 	}
 
-	numa_off = 1;
+	numa_off = true;
 	return 0;
 }
 
-- 
1.7.11.7

[PATCH v7 08/15] x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Cleanup acpi_numa_processor_affinity_init() in preparation for its
move to drivers/acpi/numa.c.  It will be reused by arm64, this has no
functional change.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/x86/mm/srat.c | 21 +++++----------------
 1 file changed, 5 insertions(+), 16 deletions(-)

diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index f242a11..9e2a833 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -26,11 +26,6 @@
 
 int acpi_numa __initdata;
 
-static __init int setup_node(int pxm)
-{
-	return acpi_map_pxm_to_node(pxm);
-}
-
 static __init void bad_srat(void)
 {
 	printk(KERN_ERR "SRAT: SRAT not used.\n");
@@ -64,7 +59,7 @@ acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
 			 pxm, apic_id);
 		return;
 	}
-	node = setup_node(pxm);
+	node = acpi_map_pxm_to_node(pxm);
 	if (node < 0) {
 		printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
 		bad_srat();
@@ -100,7 +95,7 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 	pxm = pa->proximity_domain_lo;
 	if (acpi_srat_revision >= 2)
 		pxm |= *((unsigned int*)pa->proximity_domain_hi) << 8;
-	node = setup_node(pxm);
+	node = acpi_map_pxm_to_node(pxm);
 	if (node < 0) {
 		printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
 		bad_srat();
@@ -124,12 +119,6 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 	       pxm, apic_id, node);
 }
 
-#ifdef CONFIG_MEMORY_HOTPLUG
-static inline int save_add_info(void) {return 1;}
-#else
-static inline int save_add_info(void) {return 0;}
-#endif
-
 /* Callback for parsing of the Proximity Domain <-> Memory Area mappings */
 int __init
 acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
@@ -145,7 +134,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 	if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
 		goto out_err;
 	hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE;
-	if (hotpluggable && !save_add_info())
+	if (hotpluggable && !IS_ENABLED(CONFIG_MEMORY_HOTPLUG))
 		goto out_err;
 
 	start = ma->base_address;
@@ -154,7 +143,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 	if (acpi_srat_revision <= 1)
 		pxm &= 0xff;
 
-	node = setup_node(pxm);
+	node = acpi_map_pxm_to_node(pxm);
 	if (node < 0) {
 		printk(KERN_ERR "SRAT: Too many proximity domains.\n");
 		goto out_err_bad_srat;
@@ -182,7 +171,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 out_err_bad_srat:
 	bad_srat();
 out_err:
-	return -1;
+	return -EINVAL;
 }
 
 int __init x86_acpi_numa_init(void)
-- 
1.7.11.7

[PATCH v7 08/15] x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Cleanup acpi_numa_processor_affinity_init() in preparation for its
move to drivers/acpi/numa.c.  It will be reused by arm64, this has no
functional change.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/x86/mm/srat.c | 21 +++++----------------
 1 file changed, 5 insertions(+), 16 deletions(-)

diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index f242a11..9e2a833 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -26,11 +26,6 @@
 
 int acpi_numa __initdata;
 
-static __init int setup_node(int pxm)
-{
-	return acpi_map_pxm_to_node(pxm);
-}
-
 static __init void bad_srat(void)
 {
 	printk(KERN_ERR "SRAT: SRAT not used.\n");
@@ -64,7 +59,7 @@ acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
 			 pxm, apic_id);
 		return;
 	}
-	node = setup_node(pxm);
+	node = acpi_map_pxm_to_node(pxm);
 	if (node < 0) {
 		printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
 		bad_srat();
@@ -100,7 +95,7 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 	pxm = pa->proximity_domain_lo;
 	if (acpi_srat_revision >= 2)
 		pxm |= *((unsigned int*)pa->proximity_domain_hi) << 8;
-	node = setup_node(pxm);
+	node = acpi_map_pxm_to_node(pxm);
 	if (node < 0) {
 		printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
 		bad_srat();
@@ -124,12 +119,6 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 	       pxm, apic_id, node);
 }
 
-#ifdef CONFIG_MEMORY_HOTPLUG
-static inline int save_add_info(void) {return 1;}
-#else
-static inline int save_add_info(void) {return 0;}
-#endif
-
 /* Callback for parsing of the Proximity Domain <-> Memory Area mappings */
 int __init
 acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
@@ -145,7 +134,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 	if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
 		goto out_err;
 	hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE;
-	if (hotpluggable && !save_add_info())
+	if (hotpluggable && !IS_ENABLED(CONFIG_MEMORY_HOTPLUG))
 		goto out_err;
 
 	start = ma->base_address;
@@ -154,7 +143,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 	if (acpi_srat_revision <= 1)
 		pxm &= 0xff;
 
-	node = setup_node(pxm);
+	node = acpi_map_pxm_to_node(pxm);
 	if (node < 0) {
 		printk(KERN_ERR "SRAT: Too many proximity domains.\n");
 		goto out_err_bad_srat;
@@ -182,7 +171,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 out_err_bad_srat:
 	bad_srat();
 out_err:
-	return -1;
+	return -EINVAL;
 }
 
 int __init x86_acpi_numa_init(void)
-- 
1.7.11.7

[PATCH v7 08/15] x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Cleanup acpi_numa_processor_affinity_init() in preparation for its
move to drivers/acpi/numa.c.  It will be reused by arm64, this has no
functional change.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/x86/mm/srat.c | 21 +++++----------------
 1 file changed, 5 insertions(+), 16 deletions(-)

diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index f242a11..9e2a833 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -26,11 +26,6 @@
 
 int acpi_numa __initdata;
 
-static __init int setup_node(int pxm)
-{
-	return acpi_map_pxm_to_node(pxm);
-}
-
 static __init void bad_srat(void)
 {
 	printk(KERN_ERR "SRAT: SRAT not used.\n");
@@ -64,7 +59,7 @@ acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
 			 pxm, apic_id);
 		return;
 	}
-	node = setup_node(pxm);
+	node = acpi_map_pxm_to_node(pxm);
 	if (node < 0) {
 		printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
 		bad_srat();
@@ -100,7 +95,7 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 	pxm = pa->proximity_domain_lo;
 	if (acpi_srat_revision >= 2)
 		pxm |= *((unsigned int*)pa->proximity_domain_hi) << 8;
-	node = setup_node(pxm);
+	node = acpi_map_pxm_to_node(pxm);
 	if (node < 0) {
 		printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
 		bad_srat();
@@ -124,12 +119,6 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 	       pxm, apic_id, node);
 }
 
-#ifdef CONFIG_MEMORY_HOTPLUG
-static inline int save_add_info(void) {return 1;}
-#else
-static inline int save_add_info(void) {return 0;}
-#endif
-
 /* Callback for parsing of the Proximity Domain <-> Memory Area mappings */
 int __init
 acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
@@ -145,7 +134,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 	if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
 		goto out_err;
 	hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE;
-	if (hotpluggable && !save_add_info())
+	if (hotpluggable && !IS_ENABLED(CONFIG_MEMORY_HOTPLUG))
 		goto out_err;
 
 	start = ma->base_address;
@@ -154,7 +143,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 	if (acpi_srat_revision <= 1)
 		pxm &= 0xff;
 
-	node = setup_node(pxm);
+	node = acpi_map_pxm_to_node(pxm);
 	if (node < 0) {
 		printk(KERN_ERR "SRAT: Too many proximity domains.\n");
 		goto out_err_bad_srat;
@@ -182,7 +171,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 out_err_bad_srat:
 	bad_srat();
 out_err:
-	return -1;
+	return -EINVAL;
 }
 
 int __init x86_acpi_numa_init(void)
-- 
1.7.11.7

[PATCH v7 08/15] x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Cleanup acpi_numa_processor_affinity_init() in preparation for its
move to drivers/acpi/numa.c.  It will be reused by arm64, this has no
functional change.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/x86/mm/srat.c | 21 +++++----------------
 1 file changed, 5 insertions(+), 16 deletions(-)

diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index f242a11..9e2a833 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -26,11 +26,6 @@
 
 int acpi_numa __initdata;
 
-static __init int setup_node(int pxm)
-{
-	return acpi_map_pxm_to_node(pxm);
-}
-
 static __init void bad_srat(void)
 {
 	printk(KERN_ERR "SRAT: SRAT not used.\n");
@@ -64,7 +59,7 @@ acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
 			 pxm, apic_id);
 		return;
 	}
-	node = setup_node(pxm);
+	node = acpi_map_pxm_to_node(pxm);
 	if (node < 0) {
 		printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
 		bad_srat();
@@ -100,7 +95,7 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 	pxm = pa->proximity_domain_lo;
 	if (acpi_srat_revision >= 2)
 		pxm |= *((unsigned int*)pa->proximity_domain_hi) << 8;
-	node = setup_node(pxm);
+	node = acpi_map_pxm_to_node(pxm);
 	if (node < 0) {
 		printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
 		bad_srat();
@@ -124,12 +119,6 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 	       pxm, apic_id, node);
 }
 
-#ifdef CONFIG_MEMORY_HOTPLUG
-static inline int save_add_info(void) {return 1;}
-#else
-static inline int save_add_info(void) {return 0;}
-#endif
-
 /* Callback for parsing of the Proximity Domain <-> Memory Area mappings */
 int __init
 acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
@@ -145,7 +134,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 	if ((ma->flags & ACPI_SRAT_MEM_ENABLED) = 0)
 		goto out_err;
 	hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE;
-	if (hotpluggable && !save_add_info())
+	if (hotpluggable && !IS_ENABLED(CONFIG_MEMORY_HOTPLUG))
 		goto out_err;
 
 	start = ma->base_address;
@@ -154,7 +143,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 	if (acpi_srat_revision <= 1)
 		pxm &= 0xff;
 
-	node = setup_node(pxm);
+	node = acpi_map_pxm_to_node(pxm);
 	if (node < 0) {
 		printk(KERN_ERR "SRAT: Too many proximity domains.\n");
 		goto out_err_bad_srat;
@@ -182,7 +171,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 out_err_bad_srat:
 	bad_srat();
 out_err:
-	return -1;
+	return -EINVAL;
 }
 
 int __init x86_acpi_numa_init(void)
-- 
1.7.11.7

[PATCH v7 09/15] acpi, numa: move bad_srat() and srat_disabled() to drivers/acpi/numa.c

[David Daney]

From: David Daney <david.daney@cavium.com>

bad_srat() and srat_disabled() are shared by x86 and follow-on arm64
patches.  Move them to drivers/acpi/numa.c in preparation for arm64
support.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
[david.daney@cavium.com moved definitions to drivers/acpi/numa.c]
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/x86/include/asm/acpi.h |  1 -
 arch/x86/mm/numa.c          |  2 +-
 arch/x86/mm/srat.c          | 13 -------------
 drivers/acpi/numa.c         | 12 ++++++++++++
 include/acpi/acpi_numa.h    |  4 ++++
 5 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 94c18eb..65f1e95 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -145,7 +145,6 @@ static inline void disable_acpi(void) { }
 #define ARCH_HAS_POWER_INIT	1
 
 #ifdef CONFIG_ACPI_NUMA
-extern int acpi_numa;
 extern int x86_acpi_numa_init(void);
 #endif /* CONFIG_ACPI_NUMA */
 
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 9c086c5..968ac02 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -1,4 +1,5 @@
 /* Common code for 32 and 64-bit NUMA */
+#include <linux/acpi.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/string.h>
@@ -15,7 +16,6 @@
 #include <asm/e820.h>
 #include <asm/proto.h>
 #include <asm/dma.h>
-#include <asm/acpi.h>
 #include <asm/amd_nb.h>
 
 #include "numa_internal.h"
diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index 9e2a833..4217071f 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -24,19 +24,6 @@
 #include <asm/apic.h>
 #include <asm/uv/uv.h>
 
-int acpi_numa __initdata;
-
-static __init void bad_srat(void)
-{
-	printk(KERN_ERR "SRAT: SRAT not used.\n");
-	acpi_numa = -1;
-}
-
-static __init inline int srat_disabled(void)
-{
-	return acpi_numa < 0;
-}
-
 /* Callback for Proximity Domain -> x2APIC mapping */
 void __init
 acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 7e0649d..af0c8d5 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -40,6 +40,7 @@ static int node_to_pxm_map[MAX_NUMNODES]
 			= { [0 ... MAX_NUMNODES - 1] = PXM_INVAL };
 
 unsigned char acpi_srat_revision __initdata;
+int acpi_numa __initdata;
 
 int pxm_to_node(int pxm)
 {
@@ -197,6 +198,17 @@ static int __init slit_valid(struct acpi_table_slit *slit)
 	return 1;
 }
 
+void __init bad_srat(void)
+{
+	pr_err("SRAT: SRAT not used.\n");
+	acpi_numa = -1;
+}
+
+int __init srat_disabled(void)
+{
+	return acpi_numa < 0;
+}
+
 #if defined(CONFIG_X86) || defined(CONFIG_ARM64)
 /*
  * Callback for SLIT parsing.  pxm_to_node() returns NUMA_NO_NODE for
diff --git a/include/acpi/acpi_numa.h b/include/acpi/acpi_numa.h
index 94a37cd..d4b7294 100644
--- a/include/acpi/acpi_numa.h
+++ b/include/acpi/acpi_numa.h
@@ -15,6 +15,10 @@ extern int pxm_to_node(int);
 extern int node_to_pxm(int);
 extern int acpi_map_pxm_to_node(int);
 extern unsigned char acpi_srat_revision;
+extern int acpi_numa __initdata;
+
+extern void bad_srat(void);
+extern int srat_disabled(void);
 
 #endif				/* CONFIG_ACPI_NUMA */
 #endif				/* __ACP_NUMA_H */
-- 
1.7.11.7

[PATCH v7 09/15] acpi, numa: move bad_srat() and srat_disabled() to drivers/acpi/numa.c

[David Daney]

From: David Daney <david.daney@cavium.com>

bad_srat() and srat_disabled() are shared by x86 and follow-on arm64
patches.  Move them to drivers/acpi/numa.c in preparation for arm64
support.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
[david.daney@cavium.com moved definitions to drivers/acpi/numa.c]
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/x86/include/asm/acpi.h |  1 -
 arch/x86/mm/numa.c          |  2 +-
 arch/x86/mm/srat.c          | 13 -------------
 drivers/acpi/numa.c         | 12 ++++++++++++
 include/acpi/acpi_numa.h    |  4 ++++
 5 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 94c18eb..65f1e95 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -145,7 +145,6 @@ static inline void disable_acpi(void) { }
 #define ARCH_HAS_POWER_INIT	1
 
 #ifdef CONFIG_ACPI_NUMA
-extern int acpi_numa;
 extern int x86_acpi_numa_init(void);
 #endif /* CONFIG_ACPI_NUMA */
 
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 9c086c5..968ac02 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -1,4 +1,5 @@
 /* Common code for 32 and 64-bit NUMA */
+#include <linux/acpi.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/string.h>
@@ -15,7 +16,6 @@
 #include <asm/e820.h>
 #include <asm/proto.h>
 #include <asm/dma.h>
-#include <asm/acpi.h>
 #include <asm/amd_nb.h>
 
 #include "numa_internal.h"
diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index 9e2a833..4217071f 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -24,19 +24,6 @@
 #include <asm/apic.h>
 #include <asm/uv/uv.h>
 
-int acpi_numa __initdata;
-
-static __init void bad_srat(void)
-{
-	printk(KERN_ERR "SRAT: SRAT not used.\n");
-	acpi_numa = -1;
-}
-
-static __init inline int srat_disabled(void)
-{
-	return acpi_numa < 0;
-}
-
 /* Callback for Proximity Domain -> x2APIC mapping */
 void __init
 acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 7e0649d..af0c8d5 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -40,6 +40,7 @@ static int node_to_pxm_map[MAX_NUMNODES]
 			= { [0 ... MAX_NUMNODES - 1] = PXM_INVAL };
 
 unsigned char acpi_srat_revision __initdata;
+int acpi_numa __initdata;
 
 int pxm_to_node(int pxm)
 {
@@ -197,6 +198,17 @@ static int __init slit_valid(struct acpi_table_slit *slit)
 	return 1;
 }
 
+void __init bad_srat(void)
+{
+	pr_err("SRAT: SRAT not used.\n");
+	acpi_numa = -1;
+}
+
+int __init srat_disabled(void)
+{
+	return acpi_numa < 0;
+}
+
 #if defined(CONFIG_X86) || defined(CONFIG_ARM64)
 /*
  * Callback for SLIT parsing.  pxm_to_node() returns NUMA_NO_NODE for
diff --git a/include/acpi/acpi_numa.h b/include/acpi/acpi_numa.h
index 94a37cd..d4b7294 100644
--- a/include/acpi/acpi_numa.h
+++ b/include/acpi/acpi_numa.h
@@ -15,6 +15,10 @@ extern int pxm_to_node(int);
 extern int node_to_pxm(int);
 extern int acpi_map_pxm_to_node(int);
 extern unsigned char acpi_srat_revision;
+extern int acpi_numa __initdata;
+
+extern void bad_srat(void);
+extern int srat_disabled(void);
 
 #endif				/* CONFIG_ACPI_NUMA */
 #endif				/* __ACP_NUMA_H */
-- 
1.7.11.7

[PATCH v7 09/15] acpi, numa: move bad_srat() and srat_disabled() to drivers/acpi/numa.c

[David Daney]

From: David Daney <david.daney@cavium.com>

bad_srat() and srat_disabled() are shared by x86 and follow-on arm64
patches.  Move them to drivers/acpi/numa.c in preparation for arm64
support.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
[david.daney at cavium.com moved definitions to drivers/acpi/numa.c]
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/x86/include/asm/acpi.h |  1 -
 arch/x86/mm/numa.c          |  2 +-
 arch/x86/mm/srat.c          | 13 -------------
 drivers/acpi/numa.c         | 12 ++++++++++++
 include/acpi/acpi_numa.h    |  4 ++++
 5 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 94c18eb..65f1e95 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -145,7 +145,6 @@ static inline void disable_acpi(void) { }
 #define ARCH_HAS_POWER_INIT	1
 
 #ifdef CONFIG_ACPI_NUMA
-extern int acpi_numa;
 extern int x86_acpi_numa_init(void);
 #endif /* CONFIG_ACPI_NUMA */
 
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 9c086c5..968ac02 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -1,4 +1,5 @@
 /* Common code for 32 and 64-bit NUMA */
+#include <linux/acpi.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/string.h>
@@ -15,7 +16,6 @@
 #include <asm/e820.h>
 #include <asm/proto.h>
 #include <asm/dma.h>
-#include <asm/acpi.h>
 #include <asm/amd_nb.h>
 
 #include "numa_internal.h"
diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index 9e2a833..4217071f 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -24,19 +24,6 @@
 #include <asm/apic.h>
 #include <asm/uv/uv.h>
 
-int acpi_numa __initdata;
-
-static __init void bad_srat(void)
-{
-	printk(KERN_ERR "SRAT: SRAT not used.\n");
-	acpi_numa = -1;
-}
-
-static __init inline int srat_disabled(void)
-{
-	return acpi_numa < 0;
-}
-
 /* Callback for Proximity Domain -> x2APIC mapping */
 void __init
 acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 7e0649d..af0c8d5 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -40,6 +40,7 @@ static int node_to_pxm_map[MAX_NUMNODES]
 			= { [0 ... MAX_NUMNODES - 1] = PXM_INVAL };
 
 unsigned char acpi_srat_revision __initdata;
+int acpi_numa __initdata;
 
 int pxm_to_node(int pxm)
 {
@@ -197,6 +198,17 @@ static int __init slit_valid(struct acpi_table_slit *slit)
 	return 1;
 }
 
+void __init bad_srat(void)
+{
+	pr_err("SRAT: SRAT not used.\n");
+	acpi_numa = -1;
+}
+
+int __init srat_disabled(void)
+{
+	return acpi_numa < 0;
+}
+
 #if defined(CONFIG_X86) || defined(CONFIG_ARM64)
 /*
  * Callback for SLIT parsing.  pxm_to_node() returns NUMA_NO_NODE for
diff --git a/include/acpi/acpi_numa.h b/include/acpi/acpi_numa.h
index 94a37cd..d4b7294 100644
--- a/include/acpi/acpi_numa.h
+++ b/include/acpi/acpi_numa.h
@@ -15,6 +15,10 @@ extern int pxm_to_node(int);
 extern int node_to_pxm(int);
 extern int acpi_map_pxm_to_node(int);
 extern unsigned char acpi_srat_revision;
+extern int acpi_numa __initdata;
+
+extern void bad_srat(void);
+extern int srat_disabled(void);
 
 #endif				/* CONFIG_ACPI_NUMA */
 #endif				/* __ACP_NUMA_H */
-- 
1.7.11.7

[PATCH v7 09/15] acpi, numa: move bad_srat() and srat_disabled() to drivers/acpi/numa.c

[David Daney]

From: David Daney <david.daney@cavium.com>

bad_srat() and srat_disabled() are shared by x86 and follow-on arm64
patches.  Move them to drivers/acpi/numa.c in preparation for arm64
support.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
[david.daney@cavium.com moved definitions to drivers/acpi/numa.c]
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/x86/include/asm/acpi.h |  1 -
 arch/x86/mm/numa.c          |  2 +-
 arch/x86/mm/srat.c          | 13 -------------
 drivers/acpi/numa.c         | 12 ++++++++++++
 include/acpi/acpi_numa.h    |  4 ++++
 5 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 94c18eb..65f1e95 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -145,7 +145,6 @@ static inline void disable_acpi(void) { }
 #define ARCH_HAS_POWER_INIT	1
 
 #ifdef CONFIG_ACPI_NUMA
-extern int acpi_numa;
 extern int x86_acpi_numa_init(void);
 #endif /* CONFIG_ACPI_NUMA */
 
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 9c086c5..968ac02 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -1,4 +1,5 @@
 /* Common code for 32 and 64-bit NUMA */
+#include <linux/acpi.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/string.h>
@@ -15,7 +16,6 @@
 #include <asm/e820.h>
 #include <asm/proto.h>
 #include <asm/dma.h>
-#include <asm/acpi.h>
 #include <asm/amd_nb.h>
 
 #include "numa_internal.h"
diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index 9e2a833..4217071f 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -24,19 +24,6 @@
 #include <asm/apic.h>
 #include <asm/uv/uv.h>
 
-int acpi_numa __initdata;
-
-static __init void bad_srat(void)
-{
-	printk(KERN_ERR "SRAT: SRAT not used.\n");
-	acpi_numa = -1;
-}
-
-static __init inline int srat_disabled(void)
-{
-	return acpi_numa < 0;
-}
-
 /* Callback for Proximity Domain -> x2APIC mapping */
 void __init
 acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 7e0649d..af0c8d5 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -40,6 +40,7 @@ static int node_to_pxm_map[MAX_NUMNODES]
 			= { [0 ... MAX_NUMNODES - 1] = PXM_INVAL };
 
 unsigned char acpi_srat_revision __initdata;
+int acpi_numa __initdata;
 
 int pxm_to_node(int pxm)
 {
@@ -197,6 +198,17 @@ static int __init slit_valid(struct acpi_table_slit *slit)
 	return 1;
 }
 
+void __init bad_srat(void)
+{
+	pr_err("SRAT: SRAT not used.\n");
+	acpi_numa = -1;
+}
+
+int __init srat_disabled(void)
+{
+	return acpi_numa < 0;
+}
+
 #if defined(CONFIG_X86) || defined(CONFIG_ARM64)
 /*
  * Callback for SLIT parsing.  pxm_to_node() returns NUMA_NO_NODE for
diff --git a/include/acpi/acpi_numa.h b/include/acpi/acpi_numa.h
index 94a37cd..d4b7294 100644
--- a/include/acpi/acpi_numa.h
+++ b/include/acpi/acpi_numa.h
@@ -15,6 +15,10 @@ extern int pxm_to_node(int);
 extern int node_to_pxm(int);
 extern int acpi_map_pxm_to_node(int);
 extern unsigned char acpi_srat_revision;
+extern int acpi_numa __initdata;
+
+extern void bad_srat(void);
+extern int srat_disabled(void);
 
 #endif				/* CONFIG_ACPI_NUMA */
 #endif				/* __ACP_NUMA_H */
-- 
1.7.11.7

[PATCH v7 10/15] acpi, numa: remove unneeded acpi_numa=1

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

acpi_numa is default to 0, it's set to -1 when disable acpi numa or
when a bad SRAT is parsed, and it's only consumed in srat_disabled()
(compare it with 0) to continue parse the SRAT or not, so we don't
need to set acpi_numa to 1 when we get a valid SRAT entry.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/x86/mm/srat.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index 4217071f..30460f5 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -59,7 +59,6 @@ acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
 	}
 	set_apicid_to_node(apic_id, node);
 	node_set(node, numa_nodes_parsed);
-	acpi_numa = 1;
 	printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%04x -> Node %u\n",
 	       pxm, apic_id, node);
 }
@@ -101,7 +100,6 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 
 	set_apicid_to_node(apic_id, node);
 	node_set(node, numa_nodes_parsed);
-	acpi_numa = 1;
 	printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%02x -> Node %u\n",
 	       pxm, apic_id, node);
 }
-- 
1.7.11.7

[PATCH v7 10/15] acpi, numa: remove unneeded acpi_numa=1

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

acpi_numa is default to 0, it's set to -1 when disable acpi numa or
when a bad SRAT is parsed, and it's only consumed in srat_disabled()
(compare it with 0) to continue parse the SRAT or not, so we don't
need to set acpi_numa to 1 when we get a valid SRAT entry.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/x86/mm/srat.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index 4217071f..30460f5 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -59,7 +59,6 @@ acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
 	}
 	set_apicid_to_node(apic_id, node);
 	node_set(node, numa_nodes_parsed);
-	acpi_numa = 1;
 	printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%04x -> Node %u\n",
 	       pxm, apic_id, node);
 }
@@ -101,7 +100,6 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 
 	set_apicid_to_node(apic_id, node);
 	node_set(node, numa_nodes_parsed);
-	acpi_numa = 1;
 	printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%02x -> Node %u\n",
 	       pxm, apic_id, node);
 }
-- 
1.7.11.7

[PATCH v7 10/15] acpi, numa: remove unneeded acpi_numa=1

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

acpi_numa is default to 0, it's set to -1 when disable acpi numa or
when a bad SRAT is parsed, and it's only consumed in srat_disabled()
(compare it with 0) to continue parse the SRAT or not, so we don't
need to set acpi_numa to 1 when we get a valid SRAT entry.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/x86/mm/srat.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index 4217071f..30460f5 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -59,7 +59,6 @@ acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
 	}
 	set_apicid_to_node(apic_id, node);
 	node_set(node, numa_nodes_parsed);
-	acpi_numa = 1;
 	printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%04x -> Node %u\n",
 	       pxm, apic_id, node);
 }
@@ -101,7 +100,6 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 
 	set_apicid_to_node(apic_id, node);
 	node_set(node, numa_nodes_parsed);
-	acpi_numa = 1;
 	printk(KERN_INFO "SRAT: PXM %u -> APIC 0x%02x -> Node %u\n",
 	       pxm, apic_id, node);
 }
-- 
1.7.11.7

[PATCH v7 11/15] acpi, numa: Move acpi_numa_memory_affinity_init() to drivers/acpi/numa.c

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

acpi_numa_memory_affinity_init() will be reused by arm64.  Move it to
drivers/acpi/numa.c to facilitate reuse.

No code change.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/x86/mm/srat.c  | 57 --------------------------------------------------
 drivers/acpi/numa.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 60 insertions(+), 57 deletions(-)

diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index 30460f5..b1ecff4 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -15,8 +15,6 @@
 #include <linux/bitmap.h>
 #include <linux/module.h>
 #include <linux/topology.h>
-#include <linux/bootmem.h>
-#include <linux/memblock.h>
 #include <linux/mm.h>
 #include <asm/proto.h>
 #include <asm/numa.h>
@@ -104,61 +102,6 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 	       pxm, apic_id, node);
 }
 
-/* Callback for parsing of the Proximity Domain <-> Memory Area mappings */
-int __init
-acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
-{
-	u64 start, end;
-	u32 hotpluggable;
-	int node, pxm;
-
-	if (srat_disabled())
-		goto out_err;
-	if (ma->header.length != sizeof(struct acpi_srat_mem_affinity))
-		goto out_err_bad_srat;
-	if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
-		goto out_err;
-	hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE;
-	if (hotpluggable && !IS_ENABLED(CONFIG_MEMORY_HOTPLUG))
-		goto out_err;
-
-	start = ma->base_address;
-	end = start + ma->length;
-	pxm = ma->proximity_domain;
-	if (acpi_srat_revision <= 1)
-		pxm &= 0xff;
-
-	node = acpi_map_pxm_to_node(pxm);
-	if (node < 0) {
-		printk(KERN_ERR "SRAT: Too many proximity domains.\n");
-		goto out_err_bad_srat;
-	}
-
-	if (numa_add_memblk(node, start, end) < 0)
-		goto out_err_bad_srat;
-
-	node_set(node, numa_nodes_parsed);
-
-	pr_info("SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]%s%s\n",
-		node, pxm,
-		(unsigned long long) start, (unsigned long long) end - 1,
-		hotpluggable ? " hotplug" : "",
-		ma->flags & ACPI_SRAT_MEM_NON_VOLATILE ? " non-volatile" : "");
-
-	/* Mark hotplug range in memblock. */
-	if (hotpluggable && memblock_mark_hotplug(start, ma->length))
-		pr_warn("SRAT: Failed to mark hotplug range [mem %#010Lx-%#010Lx] in memblock\n",
-			(unsigned long long)start, (unsigned long long)end - 1);
-
-	max_possible_pfn = max(max_possible_pfn, PFN_UP(end - 1));
-
-	return 0;
-out_err_bad_srat:
-	bad_srat();
-out_err:
-	return -EINVAL;
-}
-
 int __init x86_acpi_numa_init(void)
 {
 	int ret;
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index af0c8d5..811f90a 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -27,6 +27,8 @@
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/acpi.h>
+#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/numa.h>
 #include <linux/nodemask.h>
 #include <linux/topology.h>
@@ -236,6 +238,64 @@ void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
 		}
 	}
 }
+
+/*
+ * Default callback for parsing of the Proximity Domain <-> Memory
+ * Area mappings
+ */
+int __init
+acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
+{
+	u64 start, end;
+	u32 hotpluggable;
+	int node, pxm;
+
+	if (srat_disabled())
+		goto out_err;
+	if (ma->header.length != sizeof(struct acpi_srat_mem_affinity))
+		goto out_err_bad_srat;
+	if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
+		goto out_err;
+	hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE;
+	if (hotpluggable && !IS_ENABLED(CONFIG_MEMORY_HOTPLUG))
+		goto out_err;
+
+	start = ma->base_address;
+	end = start + ma->length;
+	pxm = ma->proximity_domain;
+	if (acpi_srat_revision <= 1)
+		pxm &= 0xff;
+
+	node = acpi_map_pxm_to_node(pxm);
+	if (node < 0) {
+		printk(KERN_ERR "SRAT: Too many proximity domains.\n");
+		goto out_err_bad_srat;
+	}
+
+	if (numa_add_memblk(node, start, end) < 0)
+		goto out_err_bad_srat;
+
+	node_set(node, numa_nodes_parsed);
+
+	pr_info("SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]%s%s\n",
+		node, pxm,
+		(unsigned long long) start, (unsigned long long) end - 1,
+		hotpluggable ? " hotplug" : "",
+		ma->flags & ACPI_SRAT_MEM_NON_VOLATILE ? " non-volatile" : "");
+
+	/* Mark hotplug range in memblock. */
+	if (hotpluggable && memblock_mark_hotplug(start, ma->length))
+		pr_warn("SRAT: Failed to mark hotplug range [mem %#010Lx-%#010Lx] in memblock\n",
+			(unsigned long long)start, (unsigned long long)end - 1);
+
+	max_possible_pfn = max(max_possible_pfn, PFN_UP(end - 1));
+
+	return 0;
+out_err_bad_srat:
+	bad_srat();
+out_err:
+	return -EINVAL;
+}
 #endif /* defined(CONFIG_X86) || defined (CONFIG_ARM64) */
 
 static int __init acpi_parse_slit(struct acpi_table_header *table)
-- 
1.7.11.7

[PATCH v7 11/15] acpi, numa: Move acpi_numa_memory_affinity_init() to drivers/acpi/numa.c

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

acpi_numa_memory_affinity_init() will be reused by arm64.  Move it to
drivers/acpi/numa.c to facilitate reuse.

No code change.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/x86/mm/srat.c  | 57 --------------------------------------------------
 drivers/acpi/numa.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 60 insertions(+), 57 deletions(-)

diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index 30460f5..b1ecff4 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -15,8 +15,6 @@
 #include <linux/bitmap.h>
 #include <linux/module.h>
 #include <linux/topology.h>
-#include <linux/bootmem.h>
-#include <linux/memblock.h>
 #include <linux/mm.h>
 #include <asm/proto.h>
 #include <asm/numa.h>
@@ -104,61 +102,6 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 	       pxm, apic_id, node);
 }
 
-/* Callback for parsing of the Proximity Domain <-> Memory Area mappings */
-int __init
-acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
-{
-	u64 start, end;
-	u32 hotpluggable;
-	int node, pxm;
-
-	if (srat_disabled())
-		goto out_err;
-	if (ma->header.length != sizeof(struct acpi_srat_mem_affinity))
-		goto out_err_bad_srat;
-	if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
-		goto out_err;
-	hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE;
-	if (hotpluggable && !IS_ENABLED(CONFIG_MEMORY_HOTPLUG))
-		goto out_err;
-
-	start = ma->base_address;
-	end = start + ma->length;
-	pxm = ma->proximity_domain;
-	if (acpi_srat_revision <= 1)
-		pxm &= 0xff;
-
-	node = acpi_map_pxm_to_node(pxm);
-	if (node < 0) {
-		printk(KERN_ERR "SRAT: Too many proximity domains.\n");
-		goto out_err_bad_srat;
-	}
-
-	if (numa_add_memblk(node, start, end) < 0)
-		goto out_err_bad_srat;
-
-	node_set(node, numa_nodes_parsed);
-
-	pr_info("SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]%s%s\n",
-		node, pxm,
-		(unsigned long long) start, (unsigned long long) end - 1,
-		hotpluggable ? " hotplug" : "",
-		ma->flags & ACPI_SRAT_MEM_NON_VOLATILE ? " non-volatile" : "");
-
-	/* Mark hotplug range in memblock. */
-	if (hotpluggable && memblock_mark_hotplug(start, ma->length))
-		pr_warn("SRAT: Failed to mark hotplug range [mem %#010Lx-%#010Lx] in memblock\n",
-			(unsigned long long)start, (unsigned long long)end - 1);
-
-	max_possible_pfn = max(max_possible_pfn, PFN_UP(end - 1));
-
-	return 0;
-out_err_bad_srat:
-	bad_srat();
-out_err:
-	return -EINVAL;
-}
-
 int __init x86_acpi_numa_init(void)
 {
 	int ret;
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index af0c8d5..811f90a 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -27,6 +27,8 @@
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/acpi.h>
+#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/numa.h>
 #include <linux/nodemask.h>
 #include <linux/topology.h>
@@ -236,6 +238,64 @@ void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
 		}
 	}
 }
+
+/*
+ * Default callback for parsing of the Proximity Domain <-> Memory
+ * Area mappings
+ */
+int __init
+acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
+{
+	u64 start, end;
+	u32 hotpluggable;
+	int node, pxm;
+
+	if (srat_disabled())
+		goto out_err;
+	if (ma->header.length != sizeof(struct acpi_srat_mem_affinity))
+		goto out_err_bad_srat;
+	if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
+		goto out_err;
+	hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE;
+	if (hotpluggable && !IS_ENABLED(CONFIG_MEMORY_HOTPLUG))
+		goto out_err;
+
+	start = ma->base_address;
+	end = start + ma->length;
+	pxm = ma->proximity_domain;
+	if (acpi_srat_revision <= 1)
+		pxm &= 0xff;
+
+	node = acpi_map_pxm_to_node(pxm);
+	if (node < 0) {
+		printk(KERN_ERR "SRAT: Too many proximity domains.\n");
+		goto out_err_bad_srat;
+	}
+
+	if (numa_add_memblk(node, start, end) < 0)
+		goto out_err_bad_srat;
+
+	node_set(node, numa_nodes_parsed);
+
+	pr_info("SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]%s%s\n",
+		node, pxm,
+		(unsigned long long) start, (unsigned long long) end - 1,
+		hotpluggable ? " hotplug" : "",
+		ma->flags & ACPI_SRAT_MEM_NON_VOLATILE ? " non-volatile" : "");
+
+	/* Mark hotplug range in memblock. */
+	if (hotpluggable && memblock_mark_hotplug(start, ma->length))
+		pr_warn("SRAT: Failed to mark hotplug range [mem %#010Lx-%#010Lx] in memblock\n",
+			(unsigned long long)start, (unsigned long long)end - 1);
+
+	max_possible_pfn = max(max_possible_pfn, PFN_UP(end - 1));
+
+	return 0;
+out_err_bad_srat:
+	bad_srat();
+out_err:
+	return -EINVAL;
+}
 #endif /* defined(CONFIG_X86) || defined (CONFIG_ARM64) */
 
 static int __init acpi_parse_slit(struct acpi_table_header *table)
-- 
1.7.11.7

[PATCH v7 11/15] acpi, numa: Move acpi_numa_memory_affinity_init() to drivers/acpi/numa.c

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

acpi_numa_memory_affinity_init() will be reused by arm64.  Move it to
drivers/acpi/numa.c to facilitate reuse.

No code change.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/x86/mm/srat.c  | 57 --------------------------------------------------
 drivers/acpi/numa.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 60 insertions(+), 57 deletions(-)

diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index 30460f5..b1ecff4 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -15,8 +15,6 @@
 #include <linux/bitmap.h>
 #include <linux/module.h>
 #include <linux/topology.h>
-#include <linux/bootmem.h>
-#include <linux/memblock.h>
 #include <linux/mm.h>
 #include <asm/proto.h>
 #include <asm/numa.h>
@@ -104,61 +102,6 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 	       pxm, apic_id, node);
 }
 
-/* Callback for parsing of the Proximity Domain <-> Memory Area mappings */
-int __init
-acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
-{
-	u64 start, end;
-	u32 hotpluggable;
-	int node, pxm;
-
-	if (srat_disabled())
-		goto out_err;
-	if (ma->header.length != sizeof(struct acpi_srat_mem_affinity))
-		goto out_err_bad_srat;
-	if ((ma->flags & ACPI_SRAT_MEM_ENABLED) = 0)
-		goto out_err;
-	hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE;
-	if (hotpluggable && !IS_ENABLED(CONFIG_MEMORY_HOTPLUG))
-		goto out_err;
-
-	start = ma->base_address;
-	end = start + ma->length;
-	pxm = ma->proximity_domain;
-	if (acpi_srat_revision <= 1)
-		pxm &= 0xff;
-
-	node = acpi_map_pxm_to_node(pxm);
-	if (node < 0) {
-		printk(KERN_ERR "SRAT: Too many proximity domains.\n");
-		goto out_err_bad_srat;
-	}
-
-	if (numa_add_memblk(node, start, end) < 0)
-		goto out_err_bad_srat;
-
-	node_set(node, numa_nodes_parsed);
-
-	pr_info("SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]%s%s\n",
-		node, pxm,
-		(unsigned long long) start, (unsigned long long) end - 1,
-		hotpluggable ? " hotplug" : "",
-		ma->flags & ACPI_SRAT_MEM_NON_VOLATILE ? " non-volatile" : "");
-
-	/* Mark hotplug range in memblock. */
-	if (hotpluggable && memblock_mark_hotplug(start, ma->length))
-		pr_warn("SRAT: Failed to mark hotplug range [mem %#010Lx-%#010Lx] in memblock\n",
-			(unsigned long long)start, (unsigned long long)end - 1);
-
-	max_possible_pfn = max(max_possible_pfn, PFN_UP(end - 1));
-
-	return 0;
-out_err_bad_srat:
-	bad_srat();
-out_err:
-	return -EINVAL;
-}
-
 int __init x86_acpi_numa_init(void)
 {
 	int ret;
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index af0c8d5..811f90a 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -27,6 +27,8 @@
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/acpi.h>
+#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/numa.h>
 #include <linux/nodemask.h>
 #include <linux/topology.h>
@@ -236,6 +238,64 @@ void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
 		}
 	}
 }
+
+/*
+ * Default callback for parsing of the Proximity Domain <-> Memory
+ * Area mappings
+ */
+int __init
+acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
+{
+	u64 start, end;
+	u32 hotpluggable;
+	int node, pxm;
+
+	if (srat_disabled())
+		goto out_err;
+	if (ma->header.length != sizeof(struct acpi_srat_mem_affinity))
+		goto out_err_bad_srat;
+	if ((ma->flags & ACPI_SRAT_MEM_ENABLED) = 0)
+		goto out_err;
+	hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE;
+	if (hotpluggable && !IS_ENABLED(CONFIG_MEMORY_HOTPLUG))
+		goto out_err;
+
+	start = ma->base_address;
+	end = start + ma->length;
+	pxm = ma->proximity_domain;
+	if (acpi_srat_revision <= 1)
+		pxm &= 0xff;
+
+	node = acpi_map_pxm_to_node(pxm);
+	if (node < 0) {
+		printk(KERN_ERR "SRAT: Too many proximity domains.\n");
+		goto out_err_bad_srat;
+	}
+
+	if (numa_add_memblk(node, start, end) < 0)
+		goto out_err_bad_srat;
+
+	node_set(node, numa_nodes_parsed);
+
+	pr_info("SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]%s%s\n",
+		node, pxm,
+		(unsigned long long) start, (unsigned long long) end - 1,
+		hotpluggable ? " hotplug" : "",
+		ma->flags & ACPI_SRAT_MEM_NON_VOLATILE ? " non-volatile" : "");
+
+	/* Mark hotplug range in memblock. */
+	if (hotpluggable && memblock_mark_hotplug(start, ma->length))
+		pr_warn("SRAT: Failed to mark hotplug range [mem %#010Lx-%#010Lx] in memblock\n",
+			(unsigned long long)start, (unsigned long long)end - 1);
+
+	max_possible_pfn = max(max_possible_pfn, PFN_UP(end - 1));
+
+	return 0;
+out_err_bad_srat:
+	bad_srat();
+out_err:
+	return -EINVAL;
+}
 #endif /* defined(CONFIG_X86) || defined (CONFIG_ARM64) */
 
 static int __init acpi_parse_slit(struct acpi_table_header *table)
-- 
1.7.11.7

[PATCH v7 12/15] acpi, numa, srat: Improve SRAT error detection and add messages.

[David Daney]

From: David Daney <david.daney@cavium.com>

Loosely based on code from Robert Richter and Hanjun Guo.

Improve out of range node detection as well as allow for Larger SRAT
entities.

Add printing of nice messages.

Signed-off-by: David Daney <david.daney@cavium.com>
---
 drivers/acpi/numa.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 811f90a..fad6d28 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -252,8 +252,11 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 
 	if (srat_disabled())
 		goto out_err;
-	if (ma->header.length != sizeof(struct acpi_srat_mem_affinity))
+	if (ma->header.length < sizeof(struct acpi_srat_mem_affinity)) {
+		pr_err("SRAT: Unexpected header length: %d\n",
+		       ma->header.length);
 		goto out_err_bad_srat;
+	}
 	if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
 		goto out_err;
 	hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE;
@@ -267,13 +270,17 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 		pxm &= 0xff;
 
 	node = acpi_map_pxm_to_node(pxm);
-	if (node < 0) {
-		printk(KERN_ERR "SRAT: Too many proximity domains.\n");
+	if (node == NUMA_NO_NODE || node >= MAX_NUMNODES) {
+		pr_err("SRAT: Too many proximity domains.\n");
 		goto out_err_bad_srat;
 	}
 
-	if (numa_add_memblk(node, start, end) < 0)
+	if (numa_add_memblk(node, start, end) < 0) {
+		pr_err("SRAT: Failed to add memblk to node %u [mem %#010Lx-%#010Lx]\n",
+		       node, (unsigned long long) start,
+		       (unsigned long long) end - 1);
 		goto out_err_bad_srat;
+	}
 
 	node_set(node, numa_nodes_parsed);
 
-- 
1.7.11.7

[PATCH v7 12/15] acpi, numa, srat: Improve SRAT error detection and add messages.

[David Daney]

From: David Daney <david.daney@cavium.com>

Loosely based on code from Robert Richter and Hanjun Guo.

Improve out of range node detection as well as allow for Larger SRAT
entities.

Add printing of nice messages.

Signed-off-by: David Daney <david.daney@cavium.com>
---
 drivers/acpi/numa.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 811f90a..fad6d28 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -252,8 +252,11 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 
 	if (srat_disabled())
 		goto out_err;
-	if (ma->header.length != sizeof(struct acpi_srat_mem_affinity))
+	if (ma->header.length < sizeof(struct acpi_srat_mem_affinity)) {
+		pr_err("SRAT: Unexpected header length: %d\n",
+		       ma->header.length);
 		goto out_err_bad_srat;
+	}
 	if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
 		goto out_err;
 	hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE;
@@ -267,13 +270,17 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 		pxm &= 0xff;
 
 	node = acpi_map_pxm_to_node(pxm);
-	if (node < 0) {
-		printk(KERN_ERR "SRAT: Too many proximity domains.\n");
+	if (node == NUMA_NO_NODE || node >= MAX_NUMNODES) {
+		pr_err("SRAT: Too many proximity domains.\n");
 		goto out_err_bad_srat;
 	}
 
-	if (numa_add_memblk(node, start, end) < 0)
+	if (numa_add_memblk(node, start, end) < 0) {
+		pr_err("SRAT: Failed to add memblk to node %u [mem %#010Lx-%#010Lx]\n",
+		       node, (unsigned long long) start,
+		       (unsigned long long) end - 1);
 		goto out_err_bad_srat;
+	}
 
 	node_set(node, numa_nodes_parsed);
 
-- 
1.7.11.7

[PATCH v7 12/15] acpi, numa, srat: Improve SRAT error detection and add messages.

[David Daney]

From: David Daney <david.daney@cavium.com>

Loosely based on code from Robert Richter and Hanjun Guo.

Improve out of range node detection as well as allow for Larger SRAT
entities.

Add printing of nice messages.

Signed-off-by: David Daney <david.daney@cavium.com>
---
 drivers/acpi/numa.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 811f90a..fad6d28 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -252,8 +252,11 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 
 	if (srat_disabled())
 		goto out_err;
-	if (ma->header.length != sizeof(struct acpi_srat_mem_affinity))
+	if (ma->header.length < sizeof(struct acpi_srat_mem_affinity)) {
+		pr_err("SRAT: Unexpected header length: %d\n",
+		       ma->header.length);
 		goto out_err_bad_srat;
+	}
 	if ((ma->flags & ACPI_SRAT_MEM_ENABLED) = 0)
 		goto out_err;
 	hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE;
@@ -267,13 +270,17 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 		pxm &= 0xff;
 
 	node = acpi_map_pxm_to_node(pxm);
-	if (node < 0) {
-		printk(KERN_ERR "SRAT: Too many proximity domains.\n");
+	if (node = NUMA_NO_NODE || node >= MAX_NUMNODES) {
+		pr_err("SRAT: Too many proximity domains.\n");
 		goto out_err_bad_srat;
 	}
 
-	if (numa_add_memblk(node, start, end) < 0)
+	if (numa_add_memblk(node, start, end) < 0) {
+		pr_err("SRAT: Failed to add memblk to node %u [mem %#010Lx-%#010Lx]\n",
+		       node, (unsigned long long) start,
+		       (unsigned long long) end - 1);
 		goto out_err_bad_srat;
+	}
 
 	node_set(node, numa_nodes_parsed);
 
-- 
1.7.11.7

[PATCH v7 13/15] ACPI / processor: Add acpi_map_madt_entry().

[David Daney]

From: David Daney <david.daney@cavium.com>

Follow-on arm64 ACPI/NUMA patches need to map MADT entries very early
(before kmalloc is usable).

Add acpi_map_madt_entry() which, indirectly, uses
early_memremap()/early_memunmap() to access the table and parse out
the mpidr.  The existing implementation of map_madt_entry() is
modified to take a pointer to the MADT as a parameter and the callers
adjusted.

Signed-off-by: David Daney <david.daney@cavium.com>
---
 drivers/acpi/processor_core.c | 26 ++++++++++++++++++++++----
 include/acpi/processor.h      |  1 +
 2 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 33a38d6..9125d7d 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -108,13 +108,12 @@ static int map_gicc_mpidr(struct acpi_subtable_header *entry,
 	return -EINVAL;
 }
 
-static phys_cpuid_t map_madt_entry(int type, u32 acpi_id)
+static phys_cpuid_t map_madt_entry(struct acpi_table_madt *madt,
+				   int type, u32 acpi_id)
 {
 	unsigned long madt_end, entry;
 	phys_cpuid_t phys_id = PHYS_CPUID_INVALID;	/* CPU hardware ID */
-	struct acpi_table_madt *madt;
 
-	madt = get_madt_table();
 	if (!madt)
 		return phys_id;
 
@@ -145,6 +144,25 @@ static phys_cpuid_t map_madt_entry(int type, u32 acpi_id)
 	return phys_id;
 }
 
+phys_cpuid_t __init acpi_map_madt_entry(u32 acpi_id)
+{
+	struct acpi_table_madt *madt = NULL;
+	acpi_size tbl_size;
+	phys_cpuid_t rv;
+
+	acpi_get_table_with_size(ACPI_SIG_MADT, 0,
+				 (struct acpi_table_header **)&madt,
+				 &tbl_size);
+	if (!madt)
+		return PHYS_CPUID_INVALID;
+
+	rv = map_madt_entry(madt, 1, acpi_id);
+
+	early_acpi_os_unmap_memory(madt, tbl_size);
+
+	return rv;
+}
+
 static phys_cpuid_t map_mat_entry(acpi_handle handle, int type, u32 acpi_id)
 {
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -185,7 +203,7 @@ phys_cpuid_t acpi_get_phys_id(acpi_handle handle, int type, u32 acpi_id)
 
 	phys_id = map_mat_entry(handle, type, acpi_id);
 	if (invalid_phys_cpuid(phys_id))
-		phys_id = map_madt_entry(type, acpi_id);
+		phys_id = map_madt_entry(get_madt_table(), type, acpi_id);
 
 	return phys_id;
 }
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 6f1805d..f473e66 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -309,6 +309,7 @@ static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)
 
 /* in processor_core.c */
 phys_cpuid_t acpi_get_phys_id(acpi_handle, int type, u32 acpi_id);
+phys_cpuid_t acpi_map_madt_entry(u32 acpi_id);
 int acpi_map_cpuid(phys_cpuid_t phys_id, u32 acpi_id);
 int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
 
-- 
1.7.11.7

[PATCH v7 13/15] ACPI / processor: Add acpi_map_madt_entry().

[David Daney]

From: David Daney <david.daney@cavium.com>

Follow-on arm64 ACPI/NUMA patches need to map MADT entries very early
(before kmalloc is usable).

Add acpi_map_madt_entry() which, indirectly, uses
early_memremap()/early_memunmap() to access the table and parse out
the mpidr.  The existing implementation of map_madt_entry() is
modified to take a pointer to the MADT as a parameter and the callers
adjusted.

Signed-off-by: David Daney <david.daney@cavium.com>
---
 drivers/acpi/processor_core.c | 26 ++++++++++++++++++++++----
 include/acpi/processor.h      |  1 +
 2 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 33a38d6..9125d7d 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -108,13 +108,12 @@ static int map_gicc_mpidr(struct acpi_subtable_header *entry,
 	return -EINVAL;
 }
 
-static phys_cpuid_t map_madt_entry(int type, u32 acpi_id)
+static phys_cpuid_t map_madt_entry(struct acpi_table_madt *madt,
+				   int type, u32 acpi_id)
 {
 	unsigned long madt_end, entry;
 	phys_cpuid_t phys_id = PHYS_CPUID_INVALID;	/* CPU hardware ID */
-	struct acpi_table_madt *madt;
 
-	madt = get_madt_table();
 	if (!madt)
 		return phys_id;
 
@@ -145,6 +144,25 @@ static phys_cpuid_t map_madt_entry(int type, u32 acpi_id)
 	return phys_id;
 }
 
+phys_cpuid_t __init acpi_map_madt_entry(u32 acpi_id)
+{
+	struct acpi_table_madt *madt = NULL;
+	acpi_size tbl_size;
+	phys_cpuid_t rv;
+
+	acpi_get_table_with_size(ACPI_SIG_MADT, 0,
+				 (struct acpi_table_header **)&madt,
+				 &tbl_size);
+	if (!madt)
+		return PHYS_CPUID_INVALID;
+
+	rv = map_madt_entry(madt, 1, acpi_id);
+
+	early_acpi_os_unmap_memory(madt, tbl_size);
+
+	return rv;
+}
+
 static phys_cpuid_t map_mat_entry(acpi_handle handle, int type, u32 acpi_id)
 {
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -185,7 +203,7 @@ phys_cpuid_t acpi_get_phys_id(acpi_handle handle, int type, u32 acpi_id)
 
 	phys_id = map_mat_entry(handle, type, acpi_id);
 	if (invalid_phys_cpuid(phys_id))
-		phys_id = map_madt_entry(type, acpi_id);
+		phys_id = map_madt_entry(get_madt_table(), type, acpi_id);
 
 	return phys_id;
 }
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 6f1805d..f473e66 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -309,6 +309,7 @@ static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)
 
 /* in processor_core.c */
 phys_cpuid_t acpi_get_phys_id(acpi_handle, int type, u32 acpi_id);
+phys_cpuid_t acpi_map_madt_entry(u32 acpi_id);
 int acpi_map_cpuid(phys_cpuid_t phys_id, u32 acpi_id);
 int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
 
-- 
1.7.11.7

[PATCH v7 13/15] ACPI / processor: Add acpi_map_madt_entry().

[David Daney]

From: David Daney <david.daney@cavium.com>

Follow-on arm64 ACPI/NUMA patches need to map MADT entries very early
(before kmalloc is usable).

Add acpi_map_madt_entry() which, indirectly, uses
early_memremap()/early_memunmap() to access the table and parse out
the mpidr.  The existing implementation of map_madt_entry() is
modified to take a pointer to the MADT as a parameter and the callers
adjusted.

Signed-off-by: David Daney <david.daney@cavium.com>
---
 drivers/acpi/processor_core.c | 26 ++++++++++++++++++++++----
 include/acpi/processor.h      |  1 +
 2 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 33a38d6..9125d7d 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -108,13 +108,12 @@ static int map_gicc_mpidr(struct acpi_subtable_header *entry,
 	return -EINVAL;
 }
 
-static phys_cpuid_t map_madt_entry(int type, u32 acpi_id)
+static phys_cpuid_t map_madt_entry(struct acpi_table_madt *madt,
+				   int type, u32 acpi_id)
 {
 	unsigned long madt_end, entry;
 	phys_cpuid_t phys_id = PHYS_CPUID_INVALID;	/* CPU hardware ID */
-	struct acpi_table_madt *madt;
 
-	madt = get_madt_table();
 	if (!madt)
 		return phys_id;
 
@@ -145,6 +144,25 @@ static phys_cpuid_t map_madt_entry(int type, u32 acpi_id)
 	return phys_id;
 }
 
+phys_cpuid_t __init acpi_map_madt_entry(u32 acpi_id)
+{
+	struct acpi_table_madt *madt = NULL;
+	acpi_size tbl_size;
+	phys_cpuid_t rv;
+
+	acpi_get_table_with_size(ACPI_SIG_MADT, 0,
+				 (struct acpi_table_header **)&madt,
+				 &tbl_size);
+	if (!madt)
+		return PHYS_CPUID_INVALID;
+
+	rv = map_madt_entry(madt, 1, acpi_id);
+
+	early_acpi_os_unmap_memory(madt, tbl_size);
+
+	return rv;
+}
+
 static phys_cpuid_t map_mat_entry(acpi_handle handle, int type, u32 acpi_id)
 {
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -185,7 +203,7 @@ phys_cpuid_t acpi_get_phys_id(acpi_handle handle, int type, u32 acpi_id)
 
 	phys_id = map_mat_entry(handle, type, acpi_id);
 	if (invalid_phys_cpuid(phys_id))
-		phys_id = map_madt_entry(type, acpi_id);
+		phys_id = map_madt_entry(get_madt_table(), type, acpi_id);
 
 	return phys_id;
 }
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 6f1805d..f473e66 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -309,6 +309,7 @@ static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)
 
 /* in processor_core.c */
 phys_cpuid_t acpi_get_phys_id(acpi_handle, int type, u32 acpi_id);
+phys_cpuid_t acpi_map_madt_entry(u32 acpi_id);
 int acpi_map_cpuid(phys_cpuid_t phys_id, u32 acpi_id);
 int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
 
-- 
1.7.11.7

[PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Introduce a new file to hold ACPI based NUMA information parsing from
SRAT and SLIT.

SRAT includes the CPU ACPI ID to Proximity Domain mappings and memory
ranges to Proximity Domain mapping.  SLIT has the information of inter
node distances(relative number for access latency).

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
[rrichter@cavium.com Reworked for numa v10 series ]
Signed-off-by: Robert Richter <rrichter@cavium.com>
[david.daney@cavium.com reorderd and combinded with other patches in
Hanjun Guo's original set, removed get_mpidr_in_madt() and use
acpi_map_madt_entry() instead.]
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/arm64/include/asm/acpi.h |   8 +++
 arch/arm64/include/asm/numa.h |   2 +
 arch/arm64/kernel/Makefile    |   1 +
 arch/arm64/kernel/acpi_numa.c | 112 ++++++++++++++++++++++++++++++++++++++++++
 arch/arm64/kernel/smp.c       |   2 +
 arch/arm64/mm/numa.c          |   5 +-
 6 files changed, 129 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/kernel/acpi_numa.c

diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
index aee323b..4b13ecd 100644
--- a/arch/arm64/include/asm/acpi.h
+++ b/arch/arm64/include/asm/acpi.h
@@ -113,4 +113,12 @@ static inline const char *acpi_get_enable_method(int cpu)
 pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr);
 #endif
 
+#ifdef CONFIG_ACPI_NUMA
+int arm64_acpi_numa_init(void);
+int acpi_numa_get_nid(unsigned int cpu, u64 hwid);
+#else
+static inline int arm64_acpi_numa_init(void) { return -ENOSYS; }
+static inline int acpi_numa_get_nid(unsigned int cpu, u64 hwid) { return NUMA_NO_NODE; }
+#endif /* CONFIG_ACPI_NUMA */
+
 #endif /*_ASM_ACPI_H*/
diff --git a/arch/arm64/include/asm/numa.h b/arch/arm64/include/asm/numa.h
index e9b4f29..600887e 100644
--- a/arch/arm64/include/asm/numa.h
+++ b/arch/arm64/include/asm/numa.h
@@ -5,6 +5,8 @@
 
 #ifdef CONFIG_NUMA
 
+#define NR_NODE_MEMBLKS		(MAX_NUMNODES * 2)
+
 /* currently, arm64 implements flat NUMA topology */
 #define parent_node(node)	(node)
 
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index 2173149..a5125c6 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -42,6 +42,7 @@ arm64-obj-$(CONFIG_EFI)			+= efi.o efi-entry.stub.o
 arm64-obj-$(CONFIG_PCI)			+= pci.o
 arm64-obj-$(CONFIG_ARMV8_DEPRECATED)	+= armv8_deprecated.o
 arm64-obj-$(CONFIG_ACPI)		+= acpi.o
+arm64-obj-$(CONFIG_ACPI_NUMA)		+= acpi_numa.o
 arm64-obj-$(CONFIG_ARM64_ACPI_PARKING_PROTOCOL)	+= acpi_parking_protocol.o
 arm64-obj-$(CONFIG_PARAVIRT)		+= paravirt.o
 arm64-obj-$(CONFIG_RANDOMIZE_BASE)	+= kaslr.o
diff --git a/arch/arm64/kernel/acpi_numa.c b/arch/arm64/kernel/acpi_numa.c
new file mode 100644
index 0000000..f85149c
--- /dev/null
+++ b/arch/arm64/kernel/acpi_numa.c
@@ -0,0 +1,112 @@
+/*
+ * ACPI 5.1 based NUMA setup for ARM64
+ * Lots of code was borrowed from arch/x86/mm/srat.c
+ *
+ * Copyright 2004 Andi Kleen, SuSE Labs.
+ * Copyright (C) 2013-2016, Linaro Ltd.
+ *		Author: Hanjun Guo <hanjun.guo@linaro.org>
+ *
+ * Reads the ACPI SRAT table to figure out what memory belongs to which CPUs.
+ *
+ * Called from acpi_numa_init while reading the SRAT and SLIT tables.
+ * Assumes all memory regions belonging to a single proximity domain
+ * are in one chunk. Holes between them will be included in the node.
+ */
+
+#define pr_fmt(fmt) "ACPI: NUMA: " fmt
+
+#include <linux/acpi.h>
+#include <linux/bitmap.h>
+#include <linux/bootmem.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/memblock.h>
+#include <linux/mmzone.h>
+#include <linux/module.h>
+#include <linux/topology.h>
+
+#include <acpi/processor.h>
+#include <asm/numa.h>
+
+static int cpus_in_srat;
+
+struct __node_cpu_hwid {
+	u32 node_id;    /* logical node containing this CPU */
+	u64 cpu_hwid;   /* MPIDR for this CPU */
+};
+
+static struct __node_cpu_hwid early_node_cpu_hwid[NR_CPUS] = {
+[0 ... NR_CPUS - 1] = {NUMA_NO_NODE, PHYS_CPUID_INVALID} };
+
+int acpi_numa_get_nid(unsigned int cpu, u64 hwid)
+{
+	int i;
+
+	for (i = 0; i < cpus_in_srat; i++) {
+		if (hwid == early_node_cpu_hwid[i].cpu_hwid)
+			return early_node_cpu_hwid[i].node_id;
+	}
+
+	return NUMA_NO_NODE;
+}
+
+/* Callback for Proximity Domain -> ACPI processor UID mapping */
+void __init acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa)
+{
+	int pxm, node;
+	phys_cpuid_t mpidr;
+
+	if (srat_disabled())
+		return;
+
+	if (pa->header.length < sizeof(struct acpi_srat_gicc_affinity)) {
+		pr_err("SRAT: Invalid SRAT header length: %d\n",
+			pa->header.length);
+		bad_srat();
+		return;
+	}
+
+	if (!(pa->flags & ACPI_SRAT_GICC_ENABLED))
+		return;
+
+	if (cpus_in_srat >= NR_CPUS) {
+		pr_warn_once("SRAT: cpu_to_node_map[%d] is too small, may not be able to use all cpus\n",
+			     NR_CPUS);
+		return;
+	}
+
+	pxm = pa->proximity_domain;
+	node = acpi_map_pxm_to_node(pxm);
+
+	if (node == NUMA_NO_NODE || node >= MAX_NUMNODES) {
+		pr_err("SRAT: Too many proximity domains %d\n", pxm);
+		bad_srat();
+		return;
+	}
+
+	mpidr = acpi_map_madt_entry(pa->acpi_processor_uid);
+	if (mpidr == PHYS_CPUID_INVALID) {
+		pr_err("SRAT: PXM %d with ACPI ID %d has no valid MPIDR in MADT\n",
+			pxm, pa->acpi_processor_uid);
+		bad_srat();
+		return;
+	}
+
+	early_node_cpu_hwid[cpus_in_srat].node_id = node;
+	early_node_cpu_hwid[cpus_in_srat].cpu_hwid =  mpidr;
+	node_set(node, numa_nodes_parsed);
+	cpus_in_srat++;
+	pr_info("SRAT: PXM %d -> MPIDR 0x%Lx -> Node %d\n",
+		pxm, mpidr, node);
+}
+
+int __init arm64_acpi_numa_init(void)
+{
+	int ret;
+
+	ret = acpi_numa_init();
+	if (ret)
+		return ret;
+
+	return srat_disabled() ? -EINVAL : 0;
+}
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 678e084..d099306 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -560,6 +560,8 @@ acpi_map_gic_cpu_interface(struct acpi_madt_generic_interrupt *processor)
 	 */
 	acpi_set_mailbox_entry(cpu_count, processor);
 
+	early_map_cpu_to_node(cpu_count, acpi_numa_get_nid(cpu_count, hwid));
+
 	cpu_count++;
 }
 
diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 1def1de..c7fe3ec 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -17,6 +17,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <linux/acpi.h>
 #include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/module.h>
@@ -391,7 +392,9 @@ static int __init dummy_numa_init(void)
 void __init arm64_numa_init(void)
 {
 	if (!numa_off) {
-		if (!numa_init(of_numa_init))
+		if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
+			return;
+		if (acpi_disabled && !numa_init(of_numa_init))
 			return;
 	}
 
-- 
1.7.11.7

[PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Introduce a new file to hold ACPI based NUMA information parsing from
SRAT and SLIT.

SRAT includes the CPU ACPI ID to Proximity Domain mappings and memory
ranges to Proximity Domain mapping.  SLIT has the information of inter
node distances(relative number for access latency).

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
[rrichter at cavium.com Reworked for numa v10 series ]
Signed-off-by: Robert Richter <rrichter@cavium.com>
[david.daney at cavium.com reorderd and combinded with other patches in
Hanjun Guo's original set, removed get_mpidr_in_madt() and use
acpi_map_madt_entry() instead.]
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/arm64/include/asm/acpi.h |   8 +++
 arch/arm64/include/asm/numa.h |   2 +
 arch/arm64/kernel/Makefile    |   1 +
 arch/arm64/kernel/acpi_numa.c | 112 ++++++++++++++++++++++++++++++++++++++++++
 arch/arm64/kernel/smp.c       |   2 +
 arch/arm64/mm/numa.c          |   5 +-
 6 files changed, 129 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/kernel/acpi_numa.c

diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
index aee323b..4b13ecd 100644
--- a/arch/arm64/include/asm/acpi.h
+++ b/arch/arm64/include/asm/acpi.h
@@ -113,4 +113,12 @@ static inline const char *acpi_get_enable_method(int cpu)
 pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr);
 #endif
 
+#ifdef CONFIG_ACPI_NUMA
+int arm64_acpi_numa_init(void);
+int acpi_numa_get_nid(unsigned int cpu, u64 hwid);
+#else
+static inline int arm64_acpi_numa_init(void) { return -ENOSYS; }
+static inline int acpi_numa_get_nid(unsigned int cpu, u64 hwid) { return NUMA_NO_NODE; }
+#endif /* CONFIG_ACPI_NUMA */
+
 #endif /*_ASM_ACPI_H*/
diff --git a/arch/arm64/include/asm/numa.h b/arch/arm64/include/asm/numa.h
index e9b4f29..600887e 100644
--- a/arch/arm64/include/asm/numa.h
+++ b/arch/arm64/include/asm/numa.h
@@ -5,6 +5,8 @@
 
 #ifdef CONFIG_NUMA
 
+#define NR_NODE_MEMBLKS		(MAX_NUMNODES * 2)
+
 /* currently, arm64 implements flat NUMA topology */
 #define parent_node(node)	(node)
 
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index 2173149..a5125c6 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -42,6 +42,7 @@ arm64-obj-$(CONFIG_EFI)			+= efi.o efi-entry.stub.o
 arm64-obj-$(CONFIG_PCI)			+= pci.o
 arm64-obj-$(CONFIG_ARMV8_DEPRECATED)	+= armv8_deprecated.o
 arm64-obj-$(CONFIG_ACPI)		+= acpi.o
+arm64-obj-$(CONFIG_ACPI_NUMA)		+= acpi_numa.o
 arm64-obj-$(CONFIG_ARM64_ACPI_PARKING_PROTOCOL)	+= acpi_parking_protocol.o
 arm64-obj-$(CONFIG_PARAVIRT)		+= paravirt.o
 arm64-obj-$(CONFIG_RANDOMIZE_BASE)	+= kaslr.o
diff --git a/arch/arm64/kernel/acpi_numa.c b/arch/arm64/kernel/acpi_numa.c
new file mode 100644
index 0000000..f85149c
--- /dev/null
+++ b/arch/arm64/kernel/acpi_numa.c
@@ -0,0 +1,112 @@
+/*
+ * ACPI 5.1 based NUMA setup for ARM64
+ * Lots of code was borrowed from arch/x86/mm/srat.c
+ *
+ * Copyright 2004 Andi Kleen, SuSE Labs.
+ * Copyright (C) 2013-2016, Linaro Ltd.
+ *		Author: Hanjun Guo <hanjun.guo@linaro.org>
+ *
+ * Reads the ACPI SRAT table to figure out what memory belongs to which CPUs.
+ *
+ * Called from acpi_numa_init while reading the SRAT and SLIT tables.
+ * Assumes all memory regions belonging to a single proximity domain
+ * are in one chunk. Holes between them will be included in the node.
+ */
+
+#define pr_fmt(fmt) "ACPI: NUMA: " fmt
+
+#include <linux/acpi.h>
+#include <linux/bitmap.h>
+#include <linux/bootmem.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/memblock.h>
+#include <linux/mmzone.h>
+#include <linux/module.h>
+#include <linux/topology.h>
+
+#include <acpi/processor.h>
+#include <asm/numa.h>
+
+static int cpus_in_srat;
+
+struct __node_cpu_hwid {
+	u32 node_id;    /* logical node containing this CPU */
+	u64 cpu_hwid;   /* MPIDR for this CPU */
+};
+
+static struct __node_cpu_hwid early_node_cpu_hwid[NR_CPUS] = {
+[0 ... NR_CPUS - 1] = {NUMA_NO_NODE, PHYS_CPUID_INVALID} };
+
+int acpi_numa_get_nid(unsigned int cpu, u64 hwid)
+{
+	int i;
+
+	for (i = 0; i < cpus_in_srat; i++) {
+		if (hwid == early_node_cpu_hwid[i].cpu_hwid)
+			return early_node_cpu_hwid[i].node_id;
+	}
+
+	return NUMA_NO_NODE;
+}
+
+/* Callback for Proximity Domain -> ACPI processor UID mapping */
+void __init acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa)
+{
+	int pxm, node;
+	phys_cpuid_t mpidr;
+
+	if (srat_disabled())
+		return;
+
+	if (pa->header.length < sizeof(struct acpi_srat_gicc_affinity)) {
+		pr_err("SRAT: Invalid SRAT header length: %d\n",
+			pa->header.length);
+		bad_srat();
+		return;
+	}
+
+	if (!(pa->flags & ACPI_SRAT_GICC_ENABLED))
+		return;
+
+	if (cpus_in_srat >= NR_CPUS) {
+		pr_warn_once("SRAT: cpu_to_node_map[%d] is too small, may not be able to use all cpus\n",
+			     NR_CPUS);
+		return;
+	}
+
+	pxm = pa->proximity_domain;
+	node = acpi_map_pxm_to_node(pxm);
+
+	if (node == NUMA_NO_NODE || node >= MAX_NUMNODES) {
+		pr_err("SRAT: Too many proximity domains %d\n", pxm);
+		bad_srat();
+		return;
+	}
+
+	mpidr = acpi_map_madt_entry(pa->acpi_processor_uid);
+	if (mpidr == PHYS_CPUID_INVALID) {
+		pr_err("SRAT: PXM %d with ACPI ID %d has no valid MPIDR in MADT\n",
+			pxm, pa->acpi_processor_uid);
+		bad_srat();
+		return;
+	}
+
+	early_node_cpu_hwid[cpus_in_srat].node_id = node;
+	early_node_cpu_hwid[cpus_in_srat].cpu_hwid =  mpidr;
+	node_set(node, numa_nodes_parsed);
+	cpus_in_srat++;
+	pr_info("SRAT: PXM %d -> MPIDR 0x%Lx -> Node %d\n",
+		pxm, mpidr, node);
+}
+
+int __init arm64_acpi_numa_init(void)
+{
+	int ret;
+
+	ret = acpi_numa_init();
+	if (ret)
+		return ret;
+
+	return srat_disabled() ? -EINVAL : 0;
+}
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 678e084..d099306 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -560,6 +560,8 @@ acpi_map_gic_cpu_interface(struct acpi_madt_generic_interrupt *processor)
 	 */
 	acpi_set_mailbox_entry(cpu_count, processor);
 
+	early_map_cpu_to_node(cpu_count, acpi_numa_get_nid(cpu_count, hwid));
+
 	cpu_count++;
 }
 
diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 1def1de..c7fe3ec 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -17,6 +17,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <linux/acpi.h>
 #include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/module.h>
@@ -391,7 +392,9 @@ static int __init dummy_numa_init(void)
 void __init arm64_numa_init(void)
 {
 	if (!numa_off) {
-		if (!numa_init(of_numa_init))
+		if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
+			return;
+		if (acpi_disabled && !numa_init(of_numa_init))
 			return;
 	}
 
-- 
1.7.11.7

[PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Introduce a new file to hold ACPI based NUMA information parsing from
SRAT and SLIT.

SRAT includes the CPU ACPI ID to Proximity Domain mappings and memory
ranges to Proximity Domain mapping.  SLIT has the information of inter
node distances(relative number for access latency).

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
[rrichter@cavium.com Reworked for numa v10 series ]
Signed-off-by: Robert Richter <rrichter@cavium.com>
[david.daney@cavium.com reorderd and combinded with other patches in
Hanjun Guo's original set, removed get_mpidr_in_madt() and use
acpi_map_madt_entry() instead.]
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/arm64/include/asm/acpi.h |   8 +++
 arch/arm64/include/asm/numa.h |   2 +
 arch/arm64/kernel/Makefile    |   1 +
 arch/arm64/kernel/acpi_numa.c | 112 ++++++++++++++++++++++++++++++++++++++++++
 arch/arm64/kernel/smp.c       |   2 +
 arch/arm64/mm/numa.c          |   5 +-
 6 files changed, 129 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/kernel/acpi_numa.c

diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
index aee323b..4b13ecd 100644
--- a/arch/arm64/include/asm/acpi.h
+++ b/arch/arm64/include/asm/acpi.h
@@ -113,4 +113,12 @@ static inline const char *acpi_get_enable_method(int cpu)
 pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr);
 #endif
 
+#ifdef CONFIG_ACPI_NUMA
+int arm64_acpi_numa_init(void);
+int acpi_numa_get_nid(unsigned int cpu, u64 hwid);
+#else
+static inline int arm64_acpi_numa_init(void) { return -ENOSYS; }
+static inline int acpi_numa_get_nid(unsigned int cpu, u64 hwid) { return NUMA_NO_NODE; }
+#endif /* CONFIG_ACPI_NUMA */
+
 #endif /*_ASM_ACPI_H*/
diff --git a/arch/arm64/include/asm/numa.h b/arch/arm64/include/asm/numa.h
index e9b4f29..600887e 100644
--- a/arch/arm64/include/asm/numa.h
+++ b/arch/arm64/include/asm/numa.h
@@ -5,6 +5,8 @@
 
 #ifdef CONFIG_NUMA
 
+#define NR_NODE_MEMBLKS		(MAX_NUMNODES * 2)
+
 /* currently, arm64 implements flat NUMA topology */
 #define parent_node(node)	(node)
 
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index 2173149..a5125c6 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -42,6 +42,7 @@ arm64-obj-$(CONFIG_EFI)			+= efi.o efi-entry.stub.o
 arm64-obj-$(CONFIG_PCI)			+= pci.o
 arm64-obj-$(CONFIG_ARMV8_DEPRECATED)	+= armv8_deprecated.o
 arm64-obj-$(CONFIG_ACPI)		+= acpi.o
+arm64-obj-$(CONFIG_ACPI_NUMA)		+= acpi_numa.o
 arm64-obj-$(CONFIG_ARM64_ACPI_PARKING_PROTOCOL)	+= acpi_parking_protocol.o
 arm64-obj-$(CONFIG_PARAVIRT)		+= paravirt.o
 arm64-obj-$(CONFIG_RANDOMIZE_BASE)	+= kaslr.o
diff --git a/arch/arm64/kernel/acpi_numa.c b/arch/arm64/kernel/acpi_numa.c
new file mode 100644
index 0000000..f85149c
--- /dev/null
+++ b/arch/arm64/kernel/acpi_numa.c
@@ -0,0 +1,112 @@
+/*
+ * ACPI 5.1 based NUMA setup for ARM64
+ * Lots of code was borrowed from arch/x86/mm/srat.c
+ *
+ * Copyright 2004 Andi Kleen, SuSE Labs.
+ * Copyright (C) 2013-2016, Linaro Ltd.
+ *		Author: Hanjun Guo <hanjun.guo@linaro.org>
+ *
+ * Reads the ACPI SRAT table to figure out what memory belongs to which CPUs.
+ *
+ * Called from acpi_numa_init while reading the SRAT and SLIT tables.
+ * Assumes all memory regions belonging to a single proximity domain
+ * are in one chunk. Holes between them will be included in the node.
+ */
+
+#define pr_fmt(fmt) "ACPI: NUMA: " fmt
+
+#include <linux/acpi.h>
+#include <linux/bitmap.h>
+#include <linux/bootmem.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/memblock.h>
+#include <linux/mmzone.h>
+#include <linux/module.h>
+#include <linux/topology.h>
+
+#include <acpi/processor.h>
+#include <asm/numa.h>
+
+static int cpus_in_srat;
+
+struct __node_cpu_hwid {
+	u32 node_id;    /* logical node containing this CPU */
+	u64 cpu_hwid;   /* MPIDR for this CPU */
+};
+
+static struct __node_cpu_hwid early_node_cpu_hwid[NR_CPUS] = {
+[0 ... NR_CPUS - 1] = {NUMA_NO_NODE, PHYS_CPUID_INVALID} };
+
+int acpi_numa_get_nid(unsigned int cpu, u64 hwid)
+{
+	int i;
+
+	for (i = 0; i < cpus_in_srat; i++) {
+		if (hwid = early_node_cpu_hwid[i].cpu_hwid)
+			return early_node_cpu_hwid[i].node_id;
+	}
+
+	return NUMA_NO_NODE;
+}
+
+/* Callback for Proximity Domain -> ACPI processor UID mapping */
+void __init acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa)
+{
+	int pxm, node;
+	phys_cpuid_t mpidr;
+
+	if (srat_disabled())
+		return;
+
+	if (pa->header.length < sizeof(struct acpi_srat_gicc_affinity)) {
+		pr_err("SRAT: Invalid SRAT header length: %d\n",
+			pa->header.length);
+		bad_srat();
+		return;
+	}
+
+	if (!(pa->flags & ACPI_SRAT_GICC_ENABLED))
+		return;
+
+	if (cpus_in_srat >= NR_CPUS) {
+		pr_warn_once("SRAT: cpu_to_node_map[%d] is too small, may not be able to use all cpus\n",
+			     NR_CPUS);
+		return;
+	}
+
+	pxm = pa->proximity_domain;
+	node = acpi_map_pxm_to_node(pxm);
+
+	if (node = NUMA_NO_NODE || node >= MAX_NUMNODES) {
+		pr_err("SRAT: Too many proximity domains %d\n", pxm);
+		bad_srat();
+		return;
+	}
+
+	mpidr = acpi_map_madt_entry(pa->acpi_processor_uid);
+	if (mpidr = PHYS_CPUID_INVALID) {
+		pr_err("SRAT: PXM %d with ACPI ID %d has no valid MPIDR in MADT\n",
+			pxm, pa->acpi_processor_uid);
+		bad_srat();
+		return;
+	}
+
+	early_node_cpu_hwid[cpus_in_srat].node_id = node;
+	early_node_cpu_hwid[cpus_in_srat].cpu_hwid =  mpidr;
+	node_set(node, numa_nodes_parsed);
+	cpus_in_srat++;
+	pr_info("SRAT: PXM %d -> MPIDR 0x%Lx -> Node %d\n",
+		pxm, mpidr, node);
+}
+
+int __init arm64_acpi_numa_init(void)
+{
+	int ret;
+
+	ret = acpi_numa_init();
+	if (ret)
+		return ret;
+
+	return srat_disabled() ? -EINVAL : 0;
+}
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 678e084..d099306 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -560,6 +560,8 @@ acpi_map_gic_cpu_interface(struct acpi_madt_generic_interrupt *processor)
 	 */
 	acpi_set_mailbox_entry(cpu_count, processor);
 
+	early_map_cpu_to_node(cpu_count, acpi_numa_get_nid(cpu_count, hwid));
+
 	cpu_count++;
 }
 
diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 1def1de..c7fe3ec 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -17,6 +17,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <linux/acpi.h>
 #include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/module.h>
@@ -391,7 +392,9 @@ static int __init dummy_numa_init(void)
 void __init arm64_numa_init(void)
 {
 	if (!numa_off) {
-		if (!numa_init(of_numa_init))
+		if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
+			return;
+		if (acpi_disabled && !numa_init(of_numa_init))
 			return;
 	}
 
-- 
1.7.11.7

[PATCH v7 15/15] acpi, numa: Enable ACPI based NUMA on ARM64

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Add function needed for cpu to node mapping, and enable ACPI based
NUMA for ARM64 in Kconfig

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
[david.daney@cavium.com added ACPI_NUMA default to y for ARM64]
Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
---
 drivers/acpi/Kconfig |  4 ++--
 drivers/acpi/numa.c  | 37 ++++++++++++++++++++++++++++++++++++-
 include/linux/acpi.h | 17 ++++++++++++++++-
 3 files changed, 54 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index b7e2e77..dd76b36 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -291,8 +291,8 @@ config ACPI_THERMAL
 config ACPI_NUMA
 	bool "NUMA support"
 	depends on NUMA
-	depends on (X86 || IA64)
-	default y if IA64_GENERIC || IA64_SGI_SN2
+	depends on (X86 || IA64 || ARM64)
+	default y if IA64_GENERIC || IA64_SGI_SN2 || ARM64
 
 config ACPI_CUSTOM_DSDT_FILE
 	string "Custom DSDT Table file to include"
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index fad6d28..9b7ce40 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -170,6 +170,18 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header)
 		}
 		break;
 
+	case ACPI_SRAT_TYPE_GICC_AFFINITY:
+		{
+			struct acpi_srat_gicc_affinity *p =
+			    (struct acpi_srat_gicc_affinity *)header;
+			pr_debug("SRAT Processor (acpi id[0x%04x]) in proximity domain %d %s\n",
+				 p->acpi_processor_uid,
+				 p->proximity_domain,
+				 (p->flags & ACPI_SRAT_GICC_ENABLED) ?
+				 "enabled" : "disabled");
+		}
+		break;
+
 	default:
 		pr_warn("Found unsupported SRAT entry (type = 0x%x)\n",
 			header->type);
@@ -360,6 +372,24 @@ acpi_parse_processor_affinity(struct acpi_subtable_header *header,
 	return 0;
 }
 
+static int __init
+acpi_parse_gicc_affinity(struct acpi_subtable_header *header,
+			 const unsigned long end)
+{
+	struct acpi_srat_gicc_affinity *processor_affinity;
+
+	processor_affinity = (struct acpi_srat_gicc_affinity *)header;
+	if (!processor_affinity)
+		return -EINVAL;
+
+	acpi_table_print_srat_entry(header);
+
+	/* let architecture-dependent part to do it */
+	acpi_numa_gicc_affinity_init(processor_affinity);
+
+	return 0;
+}
+
 static int __initdata parsed_numa_memblks;
 
 static int __init
@@ -404,6 +434,9 @@ int __init acpi_numa_init(void)
 {
 	int cnt = 0;
 
+	if (acpi_disabled)
+		return -EINVAL;
+
 	/*
 	 * Should not limit number with cpu num that is from NR_CPUS or nr_cpus=
 	 * SRAT cpu entries could have different order with that in MADT.
@@ -412,13 +445,15 @@ int __init acpi_numa_init(void)
 
 	/* SRAT: Static Resource Affinity Table */
 	if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
-		struct acpi_subtable_proc srat_proc[2];
+		struct acpi_subtable_proc srat_proc[3];
 
 		memset(srat_proc, 0, sizeof(srat_proc));
 		srat_proc[0].id = ACPI_SRAT_TYPE_CPU_AFFINITY;
 		srat_proc[0].handler = acpi_parse_processor_affinity;
 		srat_proc[1].id = ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY;
 		srat_proc[1].handler = acpi_parse_x2apic_affinity;
+		srat_proc[1].id = ACPI_SRAT_TYPE_GICC_AFFINITY;
+		srat_proc[1].handler = acpi_parse_gicc_affinity;
 
 		acpi_table_parse_entries_array(ACPI_SIG_SRAT,
 					sizeof(struct acpi_table_srat),
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 8010b26..9515db6 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -232,10 +232,25 @@ int acpi_table_parse_madt(enum acpi_madt_type id,
 int acpi_parse_mcfg (struct acpi_table_header *header);
 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
 
-/* the following four functions are architecture-dependent */
+/* the following numa functions are architecture-dependent */
 void acpi_numa_slit_init (struct acpi_table_slit *slit);
+
+#if defined(CONFIG_X86) || defined(CONFIG_IA64)
 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
+#else
+static inline void
+acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
+#endif
+
 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
+
+#ifdef CONFIG_ARM64
+void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
+#else
+static inline void
+acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
+#endif
+
 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
 
 #ifndef PHYS_CPUID_INVALID
-- 
1.7.11.7

[PATCH v7 15/15] acpi, numa: Enable ACPI based NUMA on ARM64

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Add function needed for cpu to node mapping, and enable ACPI based
NUMA for ARM64 in Kconfig

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
[david.daney at cavium.com added ACPI_NUMA default to y for ARM64]
Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
---
 drivers/acpi/Kconfig |  4 ++--
 drivers/acpi/numa.c  | 37 ++++++++++++++++++++++++++++++++++++-
 include/linux/acpi.h | 17 ++++++++++++++++-
 3 files changed, 54 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index b7e2e77..dd76b36 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -291,8 +291,8 @@ config ACPI_THERMAL
 config ACPI_NUMA
 	bool "NUMA support"
 	depends on NUMA
-	depends on (X86 || IA64)
-	default y if IA64_GENERIC || IA64_SGI_SN2
+	depends on (X86 || IA64 || ARM64)
+	default y if IA64_GENERIC || IA64_SGI_SN2 || ARM64
 
 config ACPI_CUSTOM_DSDT_FILE
 	string "Custom DSDT Table file to include"
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index fad6d28..9b7ce40 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -170,6 +170,18 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header)
 		}
 		break;
 
+	case ACPI_SRAT_TYPE_GICC_AFFINITY:
+		{
+			struct acpi_srat_gicc_affinity *p =
+			    (struct acpi_srat_gicc_affinity *)header;
+			pr_debug("SRAT Processor (acpi id[0x%04x]) in proximity domain %d %s\n",
+				 p->acpi_processor_uid,
+				 p->proximity_domain,
+				 (p->flags & ACPI_SRAT_GICC_ENABLED) ?
+				 "enabled" : "disabled");
+		}
+		break;
+
 	default:
 		pr_warn("Found unsupported SRAT entry (type = 0x%x)\n",
 			header->type);
@@ -360,6 +372,24 @@ acpi_parse_processor_affinity(struct acpi_subtable_header *header,
 	return 0;
 }
 
+static int __init
+acpi_parse_gicc_affinity(struct acpi_subtable_header *header,
+			 const unsigned long end)
+{
+	struct acpi_srat_gicc_affinity *processor_affinity;
+
+	processor_affinity = (struct acpi_srat_gicc_affinity *)header;
+	if (!processor_affinity)
+		return -EINVAL;
+
+	acpi_table_print_srat_entry(header);
+
+	/* let architecture-dependent part to do it */
+	acpi_numa_gicc_affinity_init(processor_affinity);
+
+	return 0;
+}
+
 static int __initdata parsed_numa_memblks;
 
 static int __init
@@ -404,6 +434,9 @@ int __init acpi_numa_init(void)
 {
 	int cnt = 0;
 
+	if (acpi_disabled)
+		return -EINVAL;
+
 	/*
 	 * Should not limit number with cpu num that is from NR_CPUS or nr_cpus=
 	 * SRAT cpu entries could have different order with that in MADT.
@@ -412,13 +445,15 @@ int __init acpi_numa_init(void)
 
 	/* SRAT: Static Resource Affinity Table */
 	if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
-		struct acpi_subtable_proc srat_proc[2];
+		struct acpi_subtable_proc srat_proc[3];
 
 		memset(srat_proc, 0, sizeof(srat_proc));
 		srat_proc[0].id = ACPI_SRAT_TYPE_CPU_AFFINITY;
 		srat_proc[0].handler = acpi_parse_processor_affinity;
 		srat_proc[1].id = ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY;
 		srat_proc[1].handler = acpi_parse_x2apic_affinity;
+		srat_proc[1].id = ACPI_SRAT_TYPE_GICC_AFFINITY;
+		srat_proc[1].handler = acpi_parse_gicc_affinity;
 
 		acpi_table_parse_entries_array(ACPI_SIG_SRAT,
 					sizeof(struct acpi_table_srat),
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 8010b26..9515db6 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -232,10 +232,25 @@ int acpi_table_parse_madt(enum acpi_madt_type id,
 int acpi_parse_mcfg (struct acpi_table_header *header);
 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
 
-/* the following four functions are architecture-dependent */
+/* the following numa functions are architecture-dependent */
 void acpi_numa_slit_init (struct acpi_table_slit *slit);
+
+#if defined(CONFIG_X86) || defined(CONFIG_IA64)
 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
+#else
+static inline void
+acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
+#endif
+
 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
+
+#ifdef CONFIG_ARM64
+void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
+#else
+static inline void
+acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
+#endif
+
 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
 
 #ifndef PHYS_CPUID_INVALID
-- 
1.7.11.7

[PATCH v7 15/15] acpi, numa: Enable ACPI based NUMA on ARM64

[David Daney]

From: Hanjun Guo <hanjun.guo@linaro.org>

Add function needed for cpu to node mapping, and enable ACPI based
NUMA for ARM64 in Kconfig

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
[david.daney@cavium.com added ACPI_NUMA default to y for ARM64]
Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
---
 drivers/acpi/Kconfig |  4 ++--
 drivers/acpi/numa.c  | 37 ++++++++++++++++++++++++++++++++++++-
 include/linux/acpi.h | 17 ++++++++++++++++-
 3 files changed, 54 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index b7e2e77..dd76b36 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -291,8 +291,8 @@ config ACPI_THERMAL
 config ACPI_NUMA
 	bool "NUMA support"
 	depends on NUMA
-	depends on (X86 || IA64)
-	default y if IA64_GENERIC || IA64_SGI_SN2
+	depends on (X86 || IA64 || ARM64)
+	default y if IA64_GENERIC || IA64_SGI_SN2 || ARM64
 
 config ACPI_CUSTOM_DSDT_FILE
 	string "Custom DSDT Table file to include"
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index fad6d28..9b7ce40 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -170,6 +170,18 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header)
 		}
 		break;
 
+	case ACPI_SRAT_TYPE_GICC_AFFINITY:
+		{
+			struct acpi_srat_gicc_affinity *p +			    (struct acpi_srat_gicc_affinity *)header;
+			pr_debug("SRAT Processor (acpi id[0x%04x]) in proximity domain %d %s\n",
+				 p->acpi_processor_uid,
+				 p->proximity_domain,
+				 (p->flags & ACPI_SRAT_GICC_ENABLED) ?
+				 "enabled" : "disabled");
+		}
+		break;
+
 	default:
 		pr_warn("Found unsupported SRAT entry (type = 0x%x)\n",
 			header->type);
@@ -360,6 +372,24 @@ acpi_parse_processor_affinity(struct acpi_subtable_header *header,
 	return 0;
 }
 
+static int __init
+acpi_parse_gicc_affinity(struct acpi_subtable_header *header,
+			 const unsigned long end)
+{
+	struct acpi_srat_gicc_affinity *processor_affinity;
+
+	processor_affinity = (struct acpi_srat_gicc_affinity *)header;
+	if (!processor_affinity)
+		return -EINVAL;
+
+	acpi_table_print_srat_entry(header);
+
+	/* let architecture-dependent part to do it */
+	acpi_numa_gicc_affinity_init(processor_affinity);
+
+	return 0;
+}
+
 static int __initdata parsed_numa_memblks;
 
 static int __init
@@ -404,6 +434,9 @@ int __init acpi_numa_init(void)
 {
 	int cnt = 0;
 
+	if (acpi_disabled)
+		return -EINVAL;
+
 	/*
 	 * Should not limit number with cpu num that is from NR_CPUS or nr_cpus 	 * SRAT cpu entries could have different order with that in MADT.
@@ -412,13 +445,15 @@ int __init acpi_numa_init(void)
 
 	/* SRAT: Static Resource Affinity Table */
 	if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
-		struct acpi_subtable_proc srat_proc[2];
+		struct acpi_subtable_proc srat_proc[3];
 
 		memset(srat_proc, 0, sizeof(srat_proc));
 		srat_proc[0].id = ACPI_SRAT_TYPE_CPU_AFFINITY;
 		srat_proc[0].handler = acpi_parse_processor_affinity;
 		srat_proc[1].id = ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY;
 		srat_proc[1].handler = acpi_parse_x2apic_affinity;
+		srat_proc[1].id = ACPI_SRAT_TYPE_GICC_AFFINITY;
+		srat_proc[1].handler = acpi_parse_gicc_affinity;
 
 		acpi_table_parse_entries_array(ACPI_SIG_SRAT,
 					sizeof(struct acpi_table_srat),
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 8010b26..9515db6 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -232,10 +232,25 @@ int acpi_table_parse_madt(enum acpi_madt_type id,
 int acpi_parse_mcfg (struct acpi_table_header *header);
 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
 
-/* the following four functions are architecture-dependent */
+/* the following numa functions are architecture-dependent */
 void acpi_numa_slit_init (struct acpi_table_slit *slit);
+
+#if defined(CONFIG_X86) || defined(CONFIG_IA64)
 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
+#else
+static inline void
+acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
+#endif
+
 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
+
+#ifdef CONFIG_ARM64
+void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
+#else
+static inline void
+acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
+#endif
+
 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
 
 #ifndef PHYS_CPUID_INVALID
-- 
1.7.11.7

Re: [PATCH v7 13/15] ACPI / processor: Add acpi_map_madt_entry().

[Catalin Marinas]

On Tue, May 24, 2016 at 03:35:43PM -0700, David Daney wrote:
> From: David Daney <david.daney@cavium.com>
> 
> Follow-on arm64 ACPI/NUMA patches need to map MADT entries very early
> (before kmalloc is usable).
> 
> Add acpi_map_madt_entry() which, indirectly, uses
> early_memremap()/early_memunmap() to access the table and parse out
> the mpidr.  The existing implementation of map_madt_entry() is
> modified to take a pointer to the MADT as a parameter and the callers
> adjusted.
> 
> Signed-off-by: David Daney <david.daney@cavium.com>

Acked-by: Catalin Marinas <catalin.marinas@arm.com>

[PATCH v7 13/15] ACPI / processor: Add acpi_map_madt_entry().

[Catalin Marinas]

On Tue, May 24, 2016 at 03:35:43PM -0700, David Daney wrote:
> From: David Daney <david.daney@cavium.com>
> 
> Follow-on arm64 ACPI/NUMA patches need to map MADT entries very early
> (before kmalloc is usable).
> 
> Add acpi_map_madt_entry() which, indirectly, uses
> early_memremap()/early_memunmap() to access the table and parse out
> the mpidr.  The existing implementation of map_madt_entry() is
> modified to take a pointer to the MADT as a parameter and the callers
> adjusted.
> 
> Signed-off-by: David Daney <david.daney@cavium.com>

Acked-by: Catalin Marinas <catalin.marinas@arm.com>

Re: [PATCH v7 13/15] ACPI / processor: Add acpi_map_madt_entry().

[Catalin Marinas]

On Tue, May 24, 2016 at 03:35:43PM -0700, David Daney wrote:
> From: David Daney <david.daney@cavium.com>
> 
> Follow-on arm64 ACPI/NUMA patches need to map MADT entries very early
> (before kmalloc is usable).
> 
> Add acpi_map_madt_entry() which, indirectly, uses
> early_memremap()/early_memunmap() to access the table and parse out
> the mpidr.  The existing implementation of map_madt_entry() is
> modified to take a pointer to the MADT as a parameter and the callers
> adjusted.
> 
> Signed-off-by: David Daney <david.daney@cavium.com>

Acked-by: Catalin Marinas <catalin.marinas@arm.com>

Re: [PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[Catalin Marinas]

On Tue, May 24, 2016 at 03:35:44PM -0700, David Daney wrote:
> From: Hanjun Guo <hanjun.guo@linaro.org>
> 
> Introduce a new file to hold ACPI based NUMA information parsing from
> SRAT and SLIT.
> 
> SRAT includes the CPU ACPI ID to Proximity Domain mappings and memory
> ranges to Proximity Domain mapping.  SLIT has the information of inter
> node distances(relative number for access latency).
> 
> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
> Signed-off-by: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
> [rrichter@cavium.com Reworked for numa v10 series ]
> Signed-off-by: Robert Richter <rrichter@cavium.com>
> [david.daney@cavium.com reorderd and combinded with other patches in
> Hanjun Guo's original set, removed get_mpidr_in_madt() and use
> acpi_map_madt_entry() instead.]
> Signed-off-by: David Daney <david.daney@cavium.com>

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>

[PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[Catalin Marinas]

On Tue, May 24, 2016 at 03:35:44PM -0700, David Daney wrote:
> From: Hanjun Guo <hanjun.guo@linaro.org>
> 
> Introduce a new file to hold ACPI based NUMA information parsing from
> SRAT and SLIT.
> 
> SRAT includes the CPU ACPI ID to Proximity Domain mappings and memory
> ranges to Proximity Domain mapping.  SLIT has the information of inter
> node distances(relative number for access latency).
> 
> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
> Signed-off-by: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
> [rrichter at cavium.com Reworked for numa v10 series ]
> Signed-off-by: Robert Richter <rrichter@cavium.com>
> [david.daney at cavium.com reorderd and combinded with other patches in
> Hanjun Guo's original set, removed get_mpidr_in_madt() and use
> acpi_map_madt_entry() instead.]
> Signed-off-by: David Daney <david.daney@cavium.com>

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>

Re: [PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[Catalin Marinas]

On Tue, May 24, 2016 at 03:35:44PM -0700, David Daney wrote:
> From: Hanjun Guo <hanjun.guo@linaro.org>
> 
> Introduce a new file to hold ACPI based NUMA information parsing from
> SRAT and SLIT.
> 
> SRAT includes the CPU ACPI ID to Proximity Domain mappings and memory
> ranges to Proximity Domain mapping.  SLIT has the information of inter
> node distances(relative number for access latency).
> 
> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
> Signed-off-by: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
> [rrichter@cavium.com Reworked for numa v10 series ]
> Signed-off-by: Robert Richter <rrichter@cavium.com>
> [david.daney@cavium.com reorderd and combinded with other patches in
> Hanjun Guo's original set, removed get_mpidr_in_madt() and use
> acpi_map_madt_entry() instead.]
> Signed-off-by: David Daney <david.daney@cavium.com>

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>

Re: [PATCH v7 07/15] arm64, numa: Cleanup NUMA disabled messages.

[Dennis Chen]

On 25 May 2016 at 06:35, David Daney <ddaney.cavm@gmail.com> wrote:
> From: David Daney <david.daney@cavium.com>
>
> As noted by Dennis Chen, we don't want to print "No NUMA configuration
> found" if NUMA was forced off from the command line.
>
> Change the type of numa_off to bool, and clean up printing code.
> Print "NUMA disabled" if forced off on command line and "No NUMA
> configuration found" if there was no firmware NUMA information.
>
> Signed-off-by: David Daney <david.daney@cavium.com>
> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
> ---
>  arch/arm64/mm/numa.c | 11 +++++++----
>  1 file changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
> index 6cb03f9..1def1de 100644
> --- a/arch/arm64/mm/numa.c
> +++ b/arch/arm64/mm/numa.c
> @@ -29,7 +29,7 @@ static int cpu_to_node_map[NR_CPUS] = { [0 ... NR_CPUS-1] = NUMA_NO_NODE };
>
>  static int numa_distance_cnt;
>  static u8 *numa_distance;
> -static int numa_off;
> +static bool numa_off;
>
>  static __init int numa_parse_early_param(char *opt)
>  {
> @@ -37,7 +37,7 @@ static __init int numa_parse_early_param(char *opt)
>                 return -EINVAL;
>         if (!strncmp(opt, "off", 3)) {
>                 pr_info("%s\n", "NUMA turned off");
> -               numa_off = 1;
> +               numa_off = true;
>         }
>         return 0;
>  }
> @@ -362,7 +362,10 @@ static int __init dummy_numa_init(void)
>         int ret;
>         struct memblock_region *mblk;
>
> -       pr_info("%s\n", "No NUMA configuration found");
> +       if (numa_off)
> +               pr_info("NUMA disabled\n"); /* Forced off on command line. */
> +       else
> +               pr_info("No NUMA configuration found\n");
>         pr_info("NUMA: Faking a node at [mem %#018Lx-%#018Lx]\n",
>                0LLU, PFN_PHYS(max_pfn) - 1);
>
> @@ -375,7 +378,7 @@ static int __init dummy_numa_init(void)
>                 return ret;
>         }
>
> -       numa_off = 1;
> +       numa_off = true;
>         return 0;
>  }
>
> --
> 1.7.11.7
>

Reviewed-by: Dennis Chen <dennis.chen@arm.com>

-- 
Regards,
Dennis

[PATCH v7 07/15] arm64, numa: Cleanup NUMA disabled messages.

[Dennis Chen]

On 25 May 2016 at 06:35, David Daney <ddaney.cavm@gmail.com> wrote:
> From: David Daney <david.daney@cavium.com>
>
> As noted by Dennis Chen, we don't want to print "No NUMA configuration
> found" if NUMA was forced off from the command line.
>
> Change the type of numa_off to bool, and clean up printing code.
> Print "NUMA disabled" if forced off on command line and "No NUMA
> configuration found" if there was no firmware NUMA information.
>
> Signed-off-by: David Daney <david.daney@cavium.com>
> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
> ---
>  arch/arm64/mm/numa.c | 11 +++++++----
>  1 file changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
> index 6cb03f9..1def1de 100644
> --- a/arch/arm64/mm/numa.c
> +++ b/arch/arm64/mm/numa.c
> @@ -29,7 +29,7 @@ static int cpu_to_node_map[NR_CPUS] = { [0 ... NR_CPUS-1] = NUMA_NO_NODE };
>
>  static int numa_distance_cnt;
>  static u8 *numa_distance;
> -static int numa_off;
> +static bool numa_off;
>
>  static __init int numa_parse_early_param(char *opt)
>  {
> @@ -37,7 +37,7 @@ static __init int numa_parse_early_param(char *opt)
>                 return -EINVAL;
>         if (!strncmp(opt, "off", 3)) {
>                 pr_info("%s\n", "NUMA turned off");
> -               numa_off = 1;
> +               numa_off = true;
>         }
>         return 0;
>  }
> @@ -362,7 +362,10 @@ static int __init dummy_numa_init(void)
>         int ret;
>         struct memblock_region *mblk;
>
> -       pr_info("%s\n", "No NUMA configuration found");
> +       if (numa_off)
> +               pr_info("NUMA disabled\n"); /* Forced off on command line. */
> +       else
> +               pr_info("No NUMA configuration found\n");
>         pr_info("NUMA: Faking a node at [mem %#018Lx-%#018Lx]\n",
>                0LLU, PFN_PHYS(max_pfn) - 1);
>
> @@ -375,7 +378,7 @@ static int __init dummy_numa_init(void)
>                 return ret;
>         }
>
> -       numa_off = 1;
> +       numa_off = true;
>         return 0;
>  }
>
> --
> 1.7.11.7
>

Reviewed-by: Dennis Chen <dennis.chen@arm.com>

-- 
Regards,
Dennis

Re: [PATCH v7 07/15] arm64, numa: Cleanup NUMA disabled messages.

[Dennis Chen]

On 25 May 2016 at 06:35, David Daney <ddaney.cavm@gmail.com> wrote:
> From: David Daney <david.daney@cavium.com>
>
> As noted by Dennis Chen, we don't want to print "No NUMA configuration
> found" if NUMA was forced off from the command line.
>
> Change the type of numa_off to bool, and clean up printing code.
> Print "NUMA disabled" if forced off on command line and "No NUMA
> configuration found" if there was no firmware NUMA information.
>
> Signed-off-by: David Daney <david.daney@cavium.com>
> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
> ---
>  arch/arm64/mm/numa.c | 11 +++++++----
>  1 file changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
> index 6cb03f9..1def1de 100644
> --- a/arch/arm64/mm/numa.c
> +++ b/arch/arm64/mm/numa.c
> @@ -29,7 +29,7 @@ static int cpu_to_node_map[NR_CPUS] = { [0 ... NR_CPUS-1] = NUMA_NO_NODE };
>
>  static int numa_distance_cnt;
>  static u8 *numa_distance;
> -static int numa_off;
> +static bool numa_off;
>
>  static __init int numa_parse_early_param(char *opt)
>  {
> @@ -37,7 +37,7 @@ static __init int numa_parse_early_param(char *opt)
>                 return -EINVAL;
>         if (!strncmp(opt, "off", 3)) {
>                 pr_info("%s\n", "NUMA turned off");
> -               numa_off = 1;
> +               numa_off = true;
>         }
>         return 0;
>  }
> @@ -362,7 +362,10 @@ static int __init dummy_numa_init(void)
>         int ret;
>         struct memblock_region *mblk;
>
> -       pr_info("%s\n", "No NUMA configuration found");
> +       if (numa_off)
> +               pr_info("NUMA disabled\n"); /* Forced off on command line. */
> +       else
> +               pr_info("No NUMA configuration found\n");
>         pr_info("NUMA: Faking a node at [mem %#018Lx-%#018Lx]\n",
>                0LLU, PFN_PHYS(max_pfn) - 1);
>
> @@ -375,7 +378,7 @@ static int __init dummy_numa_init(void)
>                 return ret;
>         }
>
> -       numa_off = 1;
> +       numa_off = true;
>         return 0;
>  }
>
> --
> 1.7.11.7
>

Reviewed-by: Dennis Chen <dennis.chen@arm.com>

-- 
Regards,
Dennis

Re: [PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[Dennis Chen]

On 25 May 2016 at 06:35, David Daney <ddaney.cavm@gmail.com> wrote:
> From: Hanjun Guo <hanjun.guo@linaro.org>
>
> Introduce a new file to hold ACPI based NUMA information parsing from
> SRAT and SLIT.
>
> SRAT includes the CPU ACPI ID to Proximity Domain mappings and memory
> ranges to Proximity Domain mapping.  SLIT has the information of inter
> node distances(relative number for access latency).
>
> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
> Signed-off-by: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
> [rrichter@cavium.com Reworked for numa v10 series ]
> Signed-off-by: Robert Richter <rrichter@cavium.com>
> [david.daney@cavium.com reorderd and combinded with other patches in
> Hanjun Guo's original set, removed get_mpidr_in_madt() and use
> acpi_map_madt_entry() instead.]
> Signed-off-by: David Daney <david.daney@cavium.com>
> ---

I've tested this patch on Juno board with home made SRAT and SLIT
table, so feel free to add:
Tested-by: Dennis Chen <dennis.chen@arm.com>

-- 
Regards,
Dennis

Re: [PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[Dennis Chen]

On 25 May 2016 at 06:35, David Daney <ddaney.cavm@gmail.com> wrote:
> From: Hanjun Guo <hanjun.guo@linaro.org>
>
> Introduce a new file to hold ACPI based NUMA information parsing from
> SRAT and SLIT.
>
> SRAT includes the CPU ACPI ID to Proximity Domain mappings and memory
> ranges to Proximity Domain mapping.  SLIT has the information of inter
> node distances(relative number for access latency).
>
> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
> Signed-off-by: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
> [rrichter@cavium.com Reworked for numa v10 series ]
> Signed-off-by: Robert Richter <rrichter@cavium.com>
> [david.daney@cavium.com reorderd and combinded with other patches in
> Hanjun Guo's original set, removed get_mpidr_in_madt() and use
> acpi_map_madt_entry() instead.]
> Signed-off-by: David Daney <david.daney@cavium.com>
> ---

I've tested this patch on Juno board with home made SRAT and SLIT
table, so feel free to add:
Tested-by: Dennis Chen <dennis.chen@arm.com>

-- 
Regards,
Dennis

[PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[Dennis Chen]

On 25 May 2016 at 06:35, David Daney <ddaney.cavm@gmail.com> wrote:
> From: Hanjun Guo <hanjun.guo@linaro.org>
>
> Introduce a new file to hold ACPI based NUMA information parsing from
> SRAT and SLIT.
>
> SRAT includes the CPU ACPI ID to Proximity Domain mappings and memory
> ranges to Proximity Domain mapping.  SLIT has the information of inter
> node distances(relative number for access latency).
>
> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
> Signed-off-by: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
> [rrichter at cavium.com Reworked for numa v10 series ]
> Signed-off-by: Robert Richter <rrichter@cavium.com>
> [david.daney at cavium.com reorderd and combinded with other patches in
> Hanjun Guo's original set, removed get_mpidr_in_madt() and use
> acpi_map_madt_entry() instead.]
> Signed-off-by: David Daney <david.daney@cavium.com>
> ---

I've tested this patch on Juno board with home made SRAT and SLIT
table, so feel free to add:
Tested-by: Dennis Chen <dennis.chen@arm.com>

-- 
Regards,
Dennis

Re: [PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[Dennis Chen]

On 25 May 2016 at 06:35, David Daney <ddaney.cavm@gmail.com> wrote:
> From: Hanjun Guo <hanjun.guo@linaro.org>
>
> Introduce a new file to hold ACPI based NUMA information parsing from
> SRAT and SLIT.
>
> SRAT includes the CPU ACPI ID to Proximity Domain mappings and memory
> ranges to Proximity Domain mapping.  SLIT has the information of inter
> node distances(relative number for access latency).
>
> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
> Signed-off-by: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
> [rrichter@cavium.com Reworked for numa v10 series ]
> Signed-off-by: Robert Richter <rrichter@cavium.com>
> [david.daney@cavium.com reorderd and combinded with other patches in
> Hanjun Guo's original set, removed get_mpidr_in_madt() and use
> acpi_map_madt_entry() instead.]
> Signed-off-by: David Daney <david.daney@cavium.com>
> ---

I've tested this patch on Juno board with home made SRAT and SLIT
table, so feel free to add:
Tested-by: Dennis Chen <dennis.chen@arm.com>

-- 
Regards,
Dennis

Re: [PATCH v7 07/15] arm64, numa: Cleanup NUMA disabled messages.

[Hanjun Guo]

On 2016/5/25 6:35, David Daney wrote:
> From: David Daney <david.daney@cavium.com>
>
> As noted by Dennis Chen, we don't want to print "No NUMA configuration
> found" if NUMA was forced off from the command line.
>
> Change the type of numa_off to bool, and clean up printing code.
> Print "NUMA disabled" if forced off on command line and "No NUMA
> configuration found" if there was no firmware NUMA information.
>
> Signed-off-by: David Daney <david.daney@cavium.com>
> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
> ---
>   arch/arm64/mm/numa.c | 11 +++++++----
>   1 file changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
> index 6cb03f9..1def1de 100644
> --- a/arch/arm64/mm/numa.c
> +++ b/arch/arm64/mm/numa.c
> @@ -29,7 +29,7 @@ static int cpu_to_node_map[NR_CPUS] = { [0 ... NR_CPUS-1] = NUMA_NO_NODE };
>
>   static int numa_distance_cnt;
>   static u8 *numa_distance;
> -static int numa_off;
> +static bool numa_off;
>
>   static __init int numa_parse_early_param(char *opt)
>   {
> @@ -37,7 +37,7 @@ static __init int numa_parse_early_param(char *opt)
>   		return -EINVAL;
>   	if (!strncmp(opt, "off", 3)) {
>   		pr_info("%s\n", "NUMA turned off");
> -		numa_off = 1;
> +		numa_off = true;
>   	}
>   	return 0;
>   }
> @@ -362,7 +362,10 @@ static int __init dummy_numa_init(void)
>   	int ret;
>   	struct memblock_region *mblk;
>
> -	pr_info("%s\n", "No NUMA configuration found");
> +	if (numa_off)
> +		pr_info("NUMA disabled\n"); /* Forced off on command line. */
> +	else
> +		pr_info("No NUMA configuration found\n");
>   	pr_info("NUMA: Faking a node at [mem %#018Lx-%#018Lx]\n",
>   	       0LLU, PFN_PHYS(max_pfn) - 1);
>
> @@ -375,7 +378,7 @@ static int __init dummy_numa_init(void)
>   		return ret;
>   	}
>
> -	numa_off = 1;
> +	numa_off = true;
>   	return 0;
>   }

Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>

>
>

[PATCH v7 07/15] arm64, numa: Cleanup NUMA disabled messages.

[Hanjun Guo]

On 2016/5/25 6:35, David Daney wrote:
> From: David Daney <david.daney@cavium.com>
>
> As noted by Dennis Chen, we don't want to print "No NUMA configuration
> found" if NUMA was forced off from the command line.
>
> Change the type of numa_off to bool, and clean up printing code.
> Print "NUMA disabled" if forced off on command line and "No NUMA
> configuration found" if there was no firmware NUMA information.
>
> Signed-off-by: David Daney <david.daney@cavium.com>
> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
> ---
>   arch/arm64/mm/numa.c | 11 +++++++----
>   1 file changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
> index 6cb03f9..1def1de 100644
> --- a/arch/arm64/mm/numa.c
> +++ b/arch/arm64/mm/numa.c
> @@ -29,7 +29,7 @@ static int cpu_to_node_map[NR_CPUS] = { [0 ... NR_CPUS-1] = NUMA_NO_NODE };
>
>   static int numa_distance_cnt;
>   static u8 *numa_distance;
> -static int numa_off;
> +static bool numa_off;
>
>   static __init int numa_parse_early_param(char *opt)
>   {
> @@ -37,7 +37,7 @@ static __init int numa_parse_early_param(char *opt)
>   		return -EINVAL;
>   	if (!strncmp(opt, "off", 3)) {
>   		pr_info("%s\n", "NUMA turned off");
> -		numa_off = 1;
> +		numa_off = true;
>   	}
>   	return 0;
>   }
> @@ -362,7 +362,10 @@ static int __init dummy_numa_init(void)
>   	int ret;
>   	struct memblock_region *mblk;
>
> -	pr_info("%s\n", "No NUMA configuration found");
> +	if (numa_off)
> +		pr_info("NUMA disabled\n"); /* Forced off on command line. */
> +	else
> +		pr_info("No NUMA configuration found\n");
>   	pr_info("NUMA: Faking a node at [mem %#018Lx-%#018Lx]\n",
>   	       0LLU, PFN_PHYS(max_pfn) - 1);
>
> @@ -375,7 +378,7 @@ static int __init dummy_numa_init(void)
>   		return ret;
>   	}
>
> -	numa_off = 1;
> +	numa_off = true;
>   	return 0;
>   }

Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>

>
>

Re: [PATCH v7 07/15] arm64, numa: Cleanup NUMA disabled messages.

[Hanjun Guo]

On 2016/5/25 6:35, David Daney wrote:
> From: David Daney <david.daney@cavium.com>
>
> As noted by Dennis Chen, we don't want to print "No NUMA configuration
> found" if NUMA was forced off from the command line.
>
> Change the type of numa_off to bool, and clean up printing code.
> Print "NUMA disabled" if forced off on command line and "No NUMA
> configuration found" if there was no firmware NUMA information.
>
> Signed-off-by: David Daney <david.daney@cavium.com>
> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
> ---
>   arch/arm64/mm/numa.c | 11 +++++++----
>   1 file changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
> index 6cb03f9..1def1de 100644
> --- a/arch/arm64/mm/numa.c
> +++ b/arch/arm64/mm/numa.c
> @@ -29,7 +29,7 @@ static int cpu_to_node_map[NR_CPUS] = { [0 ... NR_CPUS-1] = NUMA_NO_NODE };
>
>   static int numa_distance_cnt;
>   static u8 *numa_distance;
> -static int numa_off;
> +static bool numa_off;
>
>   static __init int numa_parse_early_param(char *opt)
>   {
> @@ -37,7 +37,7 @@ static __init int numa_parse_early_param(char *opt)
>   		return -EINVAL;
>   	if (!strncmp(opt, "off", 3)) {
>   		pr_info("%s\n", "NUMA turned off");
> -		numa_off = 1;
> +		numa_off = true;
>   	}
>   	return 0;
>   }
> @@ -362,7 +362,10 @@ static int __init dummy_numa_init(void)
>   	int ret;
>   	struct memblock_region *mblk;
>
> -	pr_info("%s\n", "No NUMA configuration found");
> +	if (numa_off)
> +		pr_info("NUMA disabled\n"); /* Forced off on command line. */
> +	else
> +		pr_info("No NUMA configuration found\n");
>   	pr_info("NUMA: Faking a node at [mem %#018Lx-%#018Lx]\n",
>   	       0LLU, PFN_PHYS(max_pfn) - 1);
>
> @@ -375,7 +378,7 @@ static int __init dummy_numa_init(void)
>   		return ret;
>   	}
>
> -	numa_off = 1;
> +	numa_off = true;
>   	return 0;
>   }

Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>

>
>

Re: [Devel] [PATCH v7 07/15] arm64, numa: Cleanup NUMA disabled messages.

[Hanjun Guo]

[-- Attachment #1: Type: text/plain, Size: 1980 bytes --]

On 2016/5/25 6:35, David Daney wrote:
> From: David Daney <david.daney(a)cavium.com>
>
> As noted by Dennis Chen, we don't want to print "No NUMA configuration
> found" if NUMA was forced off from the command line.
>
> Change the type of numa_off to bool, and clean up printing code.
> Print "NUMA disabled" if forced off on command line and "No NUMA
> configuration found" if there was no firmware NUMA information.
>
> Signed-off-by: David Daney <david.daney(a)cavium.com>
> Acked-by: Catalin Marinas <catalin.marinas(a)arm.com>
> ---
>   arch/arm64/mm/numa.c | 11 +++++++----
>   1 file changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
> index 6cb03f9..1def1de 100644
> --- a/arch/arm64/mm/numa.c
> +++ b/arch/arm64/mm/numa.c
> @@ -29,7 +29,7 @@ static int cpu_to_node_map[NR_CPUS] = { [0 ... NR_CPUS-1] = NUMA_NO_NODE };
>
>   static int numa_distance_cnt;
>   static u8 *numa_distance;
> -static int numa_off;
> +static bool numa_off;
>
>   static __init int numa_parse_early_param(char *opt)
>   {
> @@ -37,7 +37,7 @@ static __init int numa_parse_early_param(char *opt)
>   		return -EINVAL;
>   	if (!strncmp(opt, "off", 3)) {
>   		pr_info("%s\n", "NUMA turned off");
> -		numa_off = 1;
> +		numa_off = true;
>   	}
>   	return 0;
>   }
> @@ -362,7 +362,10 @@ static int __init dummy_numa_init(void)
>   	int ret;
>   	struct memblock_region *mblk;
>
> -	pr_info("%s\n", "No NUMA configuration found");
> +	if (numa_off)
> +		pr_info("NUMA disabled\n"); /* Forced off on command line. */
> +	else
> +		pr_info("No NUMA configuration found\n");
>   	pr_info("NUMA: Faking a node at [mem %#018Lx-%#018Lx]\n",
>   	       0LLU, PFN_PHYS(max_pfn) - 1);
>
> @@ -375,7 +378,7 @@ static int __init dummy_numa_init(void)
>   		return ret;
>   	}
>
> -	numa_off = 1;
> +	numa_off = true;
>   	return 0;
>   }

Reviewed-by: Hanjun Guo <hanjun.guo(a)linaro.org>

>
>

Re: [PATCH v7 13/15] ACPI / processor: Add acpi_map_madt_entry().

[Hanjun Guo]

On 2016/5/25 6:35, David Daney wrote:
> From: David Daney <david.daney@cavium.com>
>
> Follow-on arm64 ACPI/NUMA patches need to map MADT entries very early
> (before kmalloc is usable).
>
> Add acpi_map_madt_entry() which, indirectly, uses
> early_memremap()/early_memunmap() to access the table and parse out
> the mpidr.  The existing implementation of map_madt_entry() is
> modified to take a pointer to the MADT as a parameter and the callers
> adjusted.
>
> Signed-off-by: David Daney <david.daney@cavium.com>
> ---
>   drivers/acpi/processor_core.c | 26 ++++++++++++++++++++++----
>   include/acpi/processor.h      |  1 +
>   2 files changed, 23 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
> index 33a38d6..9125d7d 100644
> --- a/drivers/acpi/processor_core.c
> +++ b/drivers/acpi/processor_core.c
> @@ -108,13 +108,12 @@ static int map_gicc_mpidr(struct acpi_subtable_header *entry,
>   	return -EINVAL;
>   }
>
> -static phys_cpuid_t map_madt_entry(int type, u32 acpi_id)
> +static phys_cpuid_t map_madt_entry(struct acpi_table_madt *madt,
> +				   int type, u32 acpi_id)
>   {
>   	unsigned long madt_end, entry;
>   	phys_cpuid_t phys_id = PHYS_CPUID_INVALID;	/* CPU hardware ID */
> -	struct acpi_table_madt *madt;
>
> -	madt = get_madt_table();
>   	if (!madt)
>   		return phys_id;
>
> @@ -145,6 +144,25 @@ static phys_cpuid_t map_madt_entry(int type, u32 acpi_id)
>   	return phys_id;
>   }
>
> +phys_cpuid_t __init acpi_map_madt_entry(u32 acpi_id)
> +{
> +	struct acpi_table_madt *madt = NULL;
> +	acpi_size tbl_size;
> +	phys_cpuid_t rv;
> +
> +	acpi_get_table_with_size(ACPI_SIG_MADT, 0,
> +				 (struct acpi_table_header **)&madt,
> +				 &tbl_size);
> +	if (!madt)
> +		return PHYS_CPUID_INVALID;
> +
> +	rv = map_madt_entry(madt, 1, acpi_id);

Just nit-pick, pass 1 here means we need to define an acpi processor
device object in DSDT (see function map_gicc_mpidr(),
device_declaration), it would be fine for x2apic and gic mode,
but not for lapic mode, since the function name is acpi_map_madt_entry
which is general for all architecture, it will confuse people I think.

How about rename acpi_map_madt_entry() to acpi_map_madt_gicc_entry()?
It's only used for AMR64 to get mpidrs from GICC entries using acpi_id,
other than that, it's good to me.

Thanks
Hanjun

[PATCH v7 13/15] ACPI / processor: Add acpi_map_madt_entry().

[Hanjun Guo]

On 2016/5/25 6:35, David Daney wrote:
> From: David Daney <david.daney@cavium.com>
>
> Follow-on arm64 ACPI/NUMA patches need to map MADT entries very early
> (before kmalloc is usable).
>
> Add acpi_map_madt_entry() which, indirectly, uses
> early_memremap()/early_memunmap() to access the table and parse out
> the mpidr.  The existing implementation of map_madt_entry() is
> modified to take a pointer to the MADT as a parameter and the callers
> adjusted.
>
> Signed-off-by: David Daney <david.daney@cavium.com>
> ---
>   drivers/acpi/processor_core.c | 26 ++++++++++++++++++++++----
>   include/acpi/processor.h      |  1 +
>   2 files changed, 23 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
> index 33a38d6..9125d7d 100644
> --- a/drivers/acpi/processor_core.c
> +++ b/drivers/acpi/processor_core.c
> @@ -108,13 +108,12 @@ static int map_gicc_mpidr(struct acpi_subtable_header *entry,
>   	return -EINVAL;
>   }
>
> -static phys_cpuid_t map_madt_entry(int type, u32 acpi_id)
> +static phys_cpuid_t map_madt_entry(struct acpi_table_madt *madt,
> +				   int type, u32 acpi_id)
>   {
>   	unsigned long madt_end, entry;
>   	phys_cpuid_t phys_id = PHYS_CPUID_INVALID;	/* CPU hardware ID */
> -	struct acpi_table_madt *madt;
>
> -	madt = get_madt_table();
>   	if (!madt)
>   		return phys_id;
>
> @@ -145,6 +144,25 @@ static phys_cpuid_t map_madt_entry(int type, u32 acpi_id)
>   	return phys_id;
>   }
>
> +phys_cpuid_t __init acpi_map_madt_entry(u32 acpi_id)
> +{
> +	struct acpi_table_madt *madt = NULL;
> +	acpi_size tbl_size;
> +	phys_cpuid_t rv;
> +
> +	acpi_get_table_with_size(ACPI_SIG_MADT, 0,
> +				 (struct acpi_table_header **)&madt,
> +				 &tbl_size);
> +	if (!madt)
> +		return PHYS_CPUID_INVALID;
> +
> +	rv = map_madt_entry(madt, 1, acpi_id);

Just nit-pick, pass 1 here means we need to define an acpi processor
device object in DSDT (see function map_gicc_mpidr(),
device_declaration), it would be fine for x2apic and gic mode,
but not for lapic mode, since the function name is acpi_map_madt_entry
which is general for all architecture, it will confuse people I think.

How about rename acpi_map_madt_entry() to acpi_map_madt_gicc_entry()?
It's only used for AMR64 to get mpidrs from GICC entries using acpi_id,
other than that, it's good to me.

Thanks
Hanjun

Re: [PATCH v7 13/15] ACPI / processor: Add acpi_map_madt_entry().

[Hanjun Guo]

On 2016/5/25 6:35, David Daney wrote:
> From: David Daney <david.daney@cavium.com>
>
> Follow-on arm64 ACPI/NUMA patches need to map MADT entries very early
> (before kmalloc is usable).
>
> Add acpi_map_madt_entry() which, indirectly, uses
> early_memremap()/early_memunmap() to access the table and parse out
> the mpidr.  The existing implementation of map_madt_entry() is
> modified to take a pointer to the MADT as a parameter and the callers
> adjusted.
>
> Signed-off-by: David Daney <david.daney@cavium.com>
> ---
>   drivers/acpi/processor_core.c | 26 ++++++++++++++++++++++----
>   include/acpi/processor.h      |  1 +
>   2 files changed, 23 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
> index 33a38d6..9125d7d 100644
> --- a/drivers/acpi/processor_core.c
> +++ b/drivers/acpi/processor_core.c
> @@ -108,13 +108,12 @@ static int map_gicc_mpidr(struct acpi_subtable_header *entry,
>   	return -EINVAL;
>   }
>
> -static phys_cpuid_t map_madt_entry(int type, u32 acpi_id)
> +static phys_cpuid_t map_madt_entry(struct acpi_table_madt *madt,
> +				   int type, u32 acpi_id)
>   {
>   	unsigned long madt_end, entry;
>   	phys_cpuid_t phys_id = PHYS_CPUID_INVALID;	/* CPU hardware ID */
> -	struct acpi_table_madt *madt;
>
> -	madt = get_madt_table();
>   	if (!madt)
>   		return phys_id;
>
> @@ -145,6 +144,25 @@ static phys_cpuid_t map_madt_entry(int type, u32 acpi_id)
>   	return phys_id;
>   }
>
> +phys_cpuid_t __init acpi_map_madt_entry(u32 acpi_id)
> +{
> +	struct acpi_table_madt *madt = NULL;
> +	acpi_size tbl_size;
> +	phys_cpuid_t rv;
> +
> +	acpi_get_table_with_size(ACPI_SIG_MADT, 0,
> +				 (struct acpi_table_header **)&madt,
> +				 &tbl_size);
> +	if (!madt)
> +		return PHYS_CPUID_INVALID;
> +
> +	rv = map_madt_entry(madt, 1, acpi_id);

Just nit-pick, pass 1 here means we need to define an acpi processor
device object in DSDT (see function map_gicc_mpidr(),
device_declaration), it would be fine for x2apic and gic mode,
but not for lapic mode, since the function name is acpi_map_madt_entry
which is general for all architecture, it will confuse people I think.

How about rename acpi_map_madt_entry() to acpi_map_madt_gicc_entry()?
It's only used for AMR64 to get mpidrs from GICC entries using acpi_id,
other than that, it's good to me.

Thanks
Hanjun

Re: [Devel] [PATCH v7 13/15] ACPI / processor: Add acpi_map_madt_entry().

[Hanjun Guo]

[-- Attachment #1: Type: text/plain, Size: 2423 bytes --]

On 2016/5/25 6:35, David Daney wrote:
> From: David Daney <david.daney(a)cavium.com>
>
> Follow-on arm64 ACPI/NUMA patches need to map MADT entries very early
> (before kmalloc is usable).
>
> Add acpi_map_madt_entry() which, indirectly, uses
> early_memremap()/early_memunmap() to access the table and parse out
> the mpidr.  The existing implementation of map_madt_entry() is
> modified to take a pointer to the MADT as a parameter and the callers
> adjusted.
>
> Signed-off-by: David Daney <david.daney(a)cavium.com>
> ---
>   drivers/acpi/processor_core.c | 26 ++++++++++++++++++++++----
>   include/acpi/processor.h      |  1 +
>   2 files changed, 23 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
> index 33a38d6..9125d7d 100644
> --- a/drivers/acpi/processor_core.c
> +++ b/drivers/acpi/processor_core.c
> @@ -108,13 +108,12 @@ static int map_gicc_mpidr(struct acpi_subtable_header *entry,
>   	return -EINVAL;
>   }
>
> -static phys_cpuid_t map_madt_entry(int type, u32 acpi_id)
> +static phys_cpuid_t map_madt_entry(struct acpi_table_madt *madt,
> +				   int type, u32 acpi_id)
>   {
>   	unsigned long madt_end, entry;
>   	phys_cpuid_t phys_id = PHYS_CPUID_INVALID;	/* CPU hardware ID */
> -	struct acpi_table_madt *madt;
>
> -	madt = get_madt_table();
>   	if (!madt)
>   		return phys_id;
>
> @@ -145,6 +144,25 @@ static phys_cpuid_t map_madt_entry(int type, u32 acpi_id)
>   	return phys_id;
>   }
>
> +phys_cpuid_t __init acpi_map_madt_entry(u32 acpi_id)
> +{
> +	struct acpi_table_madt *madt = NULL;
> +	acpi_size tbl_size;
> +	phys_cpuid_t rv;
> +
> +	acpi_get_table_with_size(ACPI_SIG_MADT, 0,
> +				 (struct acpi_table_header **)&madt,
> +				 &tbl_size);
> +	if (!madt)
> +		return PHYS_CPUID_INVALID;
> +
> +	rv = map_madt_entry(madt, 1, acpi_id);

Just nit-pick, pass 1 here means we need to define an acpi processor
device object in DSDT (see function map_gicc_mpidr(),
device_declaration), it would be fine for x2apic and gic mode,
but not for lapic mode, since the function name is acpi_map_madt_entry
which is general for all architecture, it will confuse people I think.

How about rename acpi_map_madt_entry() to acpi_map_madt_gicc_entry()?
It's only used for AMR64 to get mpidrs from GICC entries using acpi_id,
other than that, it's good to me.

Thanks
Hanjun

Re: [PATCH v7 00/15] ACPI NUMA support for ARM64

[Rafael J. Wysocki]

On Tuesday, May 24, 2016 03:35:30 PM David Daney wrote:
> From: David Daney <david.daney@cavium.com>
> 
> Rebased to Linus' master branch at commit 1d6da87a3241 ("Merge branch
> 'drm-next' of git://people.freedesktop.org/~airlied/linux")
> 
> ACPI 5.1 already introduced NUMA support for ARM64, which can get the
> NUMA domain information from SRAT and SLIT table, so parse those two
> tables to get mappings from cpu/mem to numa node configuration and
> system locality.
> 
> v7 updates:
> 
>  - Rebased to resolve one merge conflict.
> 
>  - New patch 13/15 to enable use of existing MADT parsing code instead
>    of adding an additional implementation of the parser.
> 
>  - Added some Acked-by headers to patches in arm64 arch directories.
> 
> v6 updates:
> 
>  - Changed message printed in 13/14 to omit meaningless "cpu"
>    number. (noted by Dennis Chen and Hanjun Guo)
> 
>  - New patch 7/14 to print different messages for NUMA disabled case.
>    (noted by Dennis Chen)
> 
>  - Squashed two patches into 14/14.
> 
>  - Added Reviewed-by to 4/14
> 
> v5 updates:
> 
>  - Fixed ia64 build failure by gating some unused functions with #if
>    CONFIG_{X86,ARM64}.
> 
>  - Fixed section mismatch errors for X86 case.
> 
>  - Removed unneeded #include from some files.
> 
>  - Tested to build cleanly on ARM64, X86_64, IA64
> 
> v4 updates:
> 
>  - Updated from Hanjun Guo's v3 patches.
> 
>  - Rebased on top of v16 of device-tree NUMA patches.
> 
>  - Reordered some of the changes so that we don't introduce code and
>    then change it several times in the patch set.  New code is
>    introduced in its final form.  Code reused from x86 is first moved
>    with no change, and then a separate patch to make any needed
>    changes.
> 
>  - code that is used only by ia64, moved to architecture specific
>    files.
> 
> v3 updates:
>  - Deep investigation about the ACPI_DEBUG_PRINT() and remvoe
>    that for acpi/numa.c (patch 2/12)
> 
>  - Remove the duplicate NULL check for table print (patch 3/12)
> 
>  - Introduce CONFIG_ACPI_HAS_NUMA_ARCH_FIXUP to remove duplicate
>    dummy function for acpi_numa_arch_fixup()
> 
>  - Solve the problem that the mapping from logical cpu to numa node
>    is wrong which spotted out by Lorenzo
> 
>  - cleanups for x86 and move acpi_numa_slit_init() and some other
>    functions to common place, then reduce the duplicate of x86
>    and arm64 (patch 7-12/12).
> 
>  - rebased on top of 4.4 and Ganapat's v9 patch set.
> 
> David Daney (4):
>   arm64, numa: Cleanup NUMA disabled messages.
>   acpi, numa: move bad_srat() and srat_disabled() to
>     drivers/acpi/numa.c
>   acpi, numa, srat: Improve SRAT error detection and add messages.
>   ACPI / processor: Add acpi_map_madt_entry().
> 
> Hanjun Guo (10):
>   acpi, numa: Use pr_fmt() instead of printk
>   acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()
>   acpi, numa: remove duplicate NULL check
>   acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c
>   arm64, numa: rework numa_add_memblk()
>   x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()
>   acpi, numa: remove unneeded acpi_numa=1
>   acpi, numa: Move acpi_numa_memory_affinity_init() to
>     drivers/acpi/numa.c
>   arm64, acpi, numa: NUMA support based on SRAT and SLIT
>   acpi, numa: Enable ACPI based NUMA on ARM64
> 
> Robert Richter (1):
>   acpi, numa: Move acpi_numa_arch_fixup() to ia64 only
> 
>  arch/arm64/include/asm/acpi.h |   8 ++
>  arch/arm64/include/asm/numa.h |   2 +
>  arch/arm64/kernel/Makefile    |   1 +
>  arch/arm64/kernel/acpi_numa.c | 112 +++++++++++++++++++++
>  arch/arm64/kernel/smp.c       |   2 +
>  arch/arm64/mm/numa.c          |  28 ++++--
>  arch/ia64/include/asm/acpi.h  |   3 +
>  arch/ia64/kernel/acpi.c       |   2 +-
>  arch/ia64/kernel/setup.c      |   1 +
>  arch/x86/include/asm/acpi.h   |   1 -
>  arch/x86/mm/numa.c            |   2 +-
>  arch/x86/mm/srat.c            | 116 +---------------------
>  drivers/acpi/Kconfig          |   4 +-
>  drivers/acpi/numa.c           | 226 ++++++++++++++++++++++++++++++++----------
>  drivers/acpi/processor_core.c |  26 ++++-
>  drivers/of/of_numa.c          |   4 +-
>  include/acpi/acpi_numa.h      |   4 +
>  include/acpi/processor.h      |   1 +
>  include/linux/acpi.h          |  18 +++-
>  19 files changed, 369 insertions(+), 192 deletions(-)
>  create mode 100644 arch/arm64/kernel/acpi_numa.c

All [1-15/15] queued up for 4.8, thanks!

[PATCH v7 00/15] ACPI NUMA support for ARM64

[Rafael J. Wysocki]

On Tuesday, May 24, 2016 03:35:30 PM David Daney wrote:
> From: David Daney <david.daney@cavium.com>
> 
> Rebased to Linus' master branch at commit 1d6da87a3241 ("Merge branch
> 'drm-next' of git://people.freedesktop.org/~airlied/linux")
> 
> ACPI 5.1 already introduced NUMA support for ARM64, which can get the
> NUMA domain information from SRAT and SLIT table, so parse those two
> tables to get mappings from cpu/mem to numa node configuration and
> system locality.
> 
> v7 updates:
> 
>  - Rebased to resolve one merge conflict.
> 
>  - New patch 13/15 to enable use of existing MADT parsing code instead
>    of adding an additional implementation of the parser.
> 
>  - Added some Acked-by headers to patches in arm64 arch directories.
> 
> v6 updates:
> 
>  - Changed message printed in 13/14 to omit meaningless "cpu"
>    number. (noted by Dennis Chen and Hanjun Guo)
> 
>  - New patch 7/14 to print different messages for NUMA disabled case.
>    (noted by Dennis Chen)
> 
>  - Squashed two patches into 14/14.
> 
>  - Added Reviewed-by to 4/14
> 
> v5 updates:
> 
>  - Fixed ia64 build failure by gating some unused functions with #if
>    CONFIG_{X86,ARM64}.
> 
>  - Fixed section mismatch errors for X86 case.
> 
>  - Removed unneeded #include from some files.
> 
>  - Tested to build cleanly on ARM64, X86_64, IA64
> 
> v4 updates:
> 
>  - Updated from Hanjun Guo's v3 patches.
> 
>  - Rebased on top of v16 of device-tree NUMA patches.
> 
>  - Reordered some of the changes so that we don't introduce code and
>    then change it several times in the patch set.  New code is
>    introduced in its final form.  Code reused from x86 is first moved
>    with no change, and then a separate patch to make any needed
>    changes.
> 
>  - code that is used only by ia64, moved to architecture specific
>    files.
> 
> v3 updates:
>  - Deep investigation about the ACPI_DEBUG_PRINT() and remvoe
>    that for acpi/numa.c (patch 2/12)
> 
>  - Remove the duplicate NULL check for table print (patch 3/12)
> 
>  - Introduce CONFIG_ACPI_HAS_NUMA_ARCH_FIXUP to remove duplicate
>    dummy function for acpi_numa_arch_fixup()
> 
>  - Solve the problem that the mapping from logical cpu to numa node
>    is wrong which spotted out by Lorenzo
> 
>  - cleanups for x86 and move acpi_numa_slit_init() and some other
>    functions to common place, then reduce the duplicate of x86
>    and arm64 (patch 7-12/12).
> 
>  - rebased on top of 4.4 and Ganapat's v9 patch set.
> 
> David Daney (4):
>   arm64, numa: Cleanup NUMA disabled messages.
>   acpi, numa: move bad_srat() and srat_disabled() to
>     drivers/acpi/numa.c
>   acpi, numa, srat: Improve SRAT error detection and add messages.
>   ACPI / processor: Add acpi_map_madt_entry().
> 
> Hanjun Guo (10):
>   acpi, numa: Use pr_fmt() instead of printk
>   acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()
>   acpi, numa: remove duplicate NULL check
>   acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c
>   arm64, numa: rework numa_add_memblk()
>   x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()
>   acpi, numa: remove unneeded acpi_numa=1
>   acpi, numa: Move acpi_numa_memory_affinity_init() to
>     drivers/acpi/numa.c
>   arm64, acpi, numa: NUMA support based on SRAT and SLIT
>   acpi, numa: Enable ACPI based NUMA on ARM64
> 
> Robert Richter (1):
>   acpi, numa: Move acpi_numa_arch_fixup() to ia64 only
> 
>  arch/arm64/include/asm/acpi.h |   8 ++
>  arch/arm64/include/asm/numa.h |   2 +
>  arch/arm64/kernel/Makefile    |   1 +
>  arch/arm64/kernel/acpi_numa.c | 112 +++++++++++++++++++++
>  arch/arm64/kernel/smp.c       |   2 +
>  arch/arm64/mm/numa.c          |  28 ++++--
>  arch/ia64/include/asm/acpi.h  |   3 +
>  arch/ia64/kernel/acpi.c       |   2 +-
>  arch/ia64/kernel/setup.c      |   1 +
>  arch/x86/include/asm/acpi.h   |   1 -
>  arch/x86/mm/numa.c            |   2 +-
>  arch/x86/mm/srat.c            | 116 +---------------------
>  drivers/acpi/Kconfig          |   4 +-
>  drivers/acpi/numa.c           | 226 ++++++++++++++++++++++++++++++++----------
>  drivers/acpi/processor_core.c |  26 ++++-
>  drivers/of/of_numa.c          |   4 +-
>  include/acpi/acpi_numa.h      |   4 +
>  include/acpi/processor.h      |   1 +
>  include/linux/acpi.h          |  18 +++-
>  19 files changed, 369 insertions(+), 192 deletions(-)
>  create mode 100644 arch/arm64/kernel/acpi_numa.c

All [1-15/15] queued up for 4.8, thanks!

Re: [PATCH v7 00/15] ACPI NUMA support for ARM64

[Rafael J. Wysocki]

On Tuesday, May 24, 2016 03:35:30 PM David Daney wrote:
> From: David Daney <david.daney@cavium.com>
> 
> Rebased to Linus' master branch at commit 1d6da87a3241 ("Merge branch
> 'drm-next' of git://people.freedesktop.org/~airlied/linux")
> 
> ACPI 5.1 already introduced NUMA support for ARM64, which can get the
> NUMA domain information from SRAT and SLIT table, so parse those two
> tables to get mappings from cpu/mem to numa node configuration and
> system locality.
> 
> v7 updates:
> 
>  - Rebased to resolve one merge conflict.
> 
>  - New patch 13/15 to enable use of existing MADT parsing code instead
>    of adding an additional implementation of the parser.
> 
>  - Added some Acked-by headers to patches in arm64 arch directories.
> 
> v6 updates:
> 
>  - Changed message printed in 13/14 to omit meaningless "cpu"
>    number. (noted by Dennis Chen and Hanjun Guo)
> 
>  - New patch 7/14 to print different messages for NUMA disabled case.
>    (noted by Dennis Chen)
> 
>  - Squashed two patches into 14/14.
> 
>  - Added Reviewed-by to 4/14
> 
> v5 updates:
> 
>  - Fixed ia64 build failure by gating some unused functions with #if
>    CONFIG_{X86,ARM64}.
> 
>  - Fixed section mismatch errors for X86 case.
> 
>  - Removed unneeded #include from some files.
> 
>  - Tested to build cleanly on ARM64, X86_64, IA64
> 
> v4 updates:
> 
>  - Updated from Hanjun Guo's v3 patches.
> 
>  - Rebased on top of v16 of device-tree NUMA patches.
> 
>  - Reordered some of the changes so that we don't introduce code and
>    then change it several times in the patch set.  New code is
>    introduced in its final form.  Code reused from x86 is first moved
>    with no change, and then a separate patch to make any needed
>    changes.
> 
>  - code that is used only by ia64, moved to architecture specific
>    files.
> 
> v3 updates:
>  - Deep investigation about the ACPI_DEBUG_PRINT() and remvoe
>    that for acpi/numa.c (patch 2/12)
> 
>  - Remove the duplicate NULL check for table print (patch 3/12)
> 
>  - Introduce CONFIG_ACPI_HAS_NUMA_ARCH_FIXUP to remove duplicate
>    dummy function for acpi_numa_arch_fixup()
> 
>  - Solve the problem that the mapping from logical cpu to numa node
>    is wrong which spotted out by Lorenzo
> 
>  - cleanups for x86 and move acpi_numa_slit_init() and some other
>    functions to common place, then reduce the duplicate of x86
>    and arm64 (patch 7-12/12).
> 
>  - rebased on top of 4.4 and Ganapat's v9 patch set.
> 
> David Daney (4):
>   arm64, numa: Cleanup NUMA disabled messages.
>   acpi, numa: move bad_srat() and srat_disabled() to
>     drivers/acpi/numa.c
>   acpi, numa, srat: Improve SRAT error detection and add messages.
>   ACPI / processor: Add acpi_map_madt_entry().
> 
> Hanjun Guo (10):
>   acpi, numa: Use pr_fmt() instead of printk
>   acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()
>   acpi, numa: remove duplicate NULL check
>   acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c
>   arm64, numa: rework numa_add_memblk()
>   x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()
>   acpi, numa: remove unneeded acpi_numa=1
>   acpi, numa: Move acpi_numa_memory_affinity_init() to
>     drivers/acpi/numa.c
>   arm64, acpi, numa: NUMA support based on SRAT and SLIT
>   acpi, numa: Enable ACPI based NUMA on ARM64
> 
> Robert Richter (1):
>   acpi, numa: Move acpi_numa_arch_fixup() to ia64 only
> 
>  arch/arm64/include/asm/acpi.h |   8 ++
>  arch/arm64/include/asm/numa.h |   2 +
>  arch/arm64/kernel/Makefile    |   1 +
>  arch/arm64/kernel/acpi_numa.c | 112 +++++++++++++++++++++
>  arch/arm64/kernel/smp.c       |   2 +
>  arch/arm64/mm/numa.c          |  28 ++++--
>  arch/ia64/include/asm/acpi.h  |   3 +
>  arch/ia64/kernel/acpi.c       |   2 +-
>  arch/ia64/kernel/setup.c      |   1 +
>  arch/x86/include/asm/acpi.h   |   1 -
>  arch/x86/mm/numa.c            |   2 +-
>  arch/x86/mm/srat.c            | 116 +---------------------
>  drivers/acpi/Kconfig          |   4 +-
>  drivers/acpi/numa.c           | 226 ++++++++++++++++++++++++++++++++----------
>  drivers/acpi/processor_core.c |  26 ++++-
>  drivers/of/of_numa.c          |   4 +-
>  include/acpi/acpi_numa.h      |   4 +
>  include/acpi/processor.h      |   1 +
>  include/linux/acpi.h          |  18 +++-
>  19 files changed, 369 insertions(+), 192 deletions(-)
>  create mode 100644 arch/arm64/kernel/acpi_numa.c

All [1-15/15] queued up for 4.8, thanks!

Re: [PATCH v7 15/15] acpi, numa: Enable ACPI based NUMA on ARM64

[Matthias Brugger]

On 25/05/16 00:35, David Daney wrote:
> From: Hanjun Guo <hanjun.guo@linaro.org>
>
> Add function needed for cpu to node mapping, and enable ACPI based
> NUMA for ARM64 in Kconfig
>
> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
> Signed-off-by: Robert Richter <rrichter@cavium.com>
> [david.daney@cavium.com added ACPI_NUMA default to y for ARM64]
> Signed-off-by: David Daney <david.daney@cavium.com>
> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
> ---
>   drivers/acpi/Kconfig |  4 ++--
>   drivers/acpi/numa.c  | 37 ++++++++++++++++++++++++++++++++++++-
>   include/linux/acpi.h | 17 ++++++++++++++++-
>   3 files changed, 54 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
> index b7e2e77..dd76b36 100644
> --- a/drivers/acpi/Kconfig
> +++ b/drivers/acpi/Kconfig
> @@ -291,8 +291,8 @@ config ACPI_THERMAL
>   config ACPI_NUMA
>   	bool "NUMA support"
>   	depends on NUMA
> -	depends on (X86 || IA64)
> -	default y if IA64_GENERIC || IA64_SGI_SN2
> +	depends on (X86 || IA64 || ARM64)
> +	default y if IA64_GENERIC || IA64_SGI_SN2 || ARM64
>
>   config ACPI_CUSTOM_DSDT_FILE
>   	string "Custom DSDT Table file to include"
> diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
> index fad6d28..9b7ce40 100644
> --- a/drivers/acpi/numa.c
> +++ b/drivers/acpi/numa.c
> @@ -170,6 +170,18 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header)
>   		}
>   		break;
>
> +	case ACPI_SRAT_TYPE_GICC_AFFINITY:
> +		{
> +			struct acpi_srat_gicc_affinity *p =
> +			    (struct acpi_srat_gicc_affinity *)header;
> +			pr_debug("SRAT Processor (acpi id[0x%04x]) in proximity domain %d %s\n",
> +				 p->acpi_processor_uid,
> +				 p->proximity_domain,
> +				 (p->flags & ACPI_SRAT_GICC_ENABLED) ?
> +				 "enabled" : "disabled");
> +		}
> +		break;
> +
>   	default:
>   		pr_warn("Found unsupported SRAT entry (type = 0x%x)\n",
>   			header->type);
> @@ -360,6 +372,24 @@ acpi_parse_processor_affinity(struct acpi_subtable_header *header,
>   	return 0;
>   }
>
> +static int __init
> +acpi_parse_gicc_affinity(struct acpi_subtable_header *header,
> +			 const unsigned long end)
> +{
> +	struct acpi_srat_gicc_affinity *processor_affinity;
> +
> +	processor_affinity = (struct acpi_srat_gicc_affinity *)header;
> +	if (!processor_affinity)
> +		return -EINVAL;
> +
> +	acpi_table_print_srat_entry(header);
> +
> +	/* let architecture-dependent part to do it */
> +	acpi_numa_gicc_affinity_init(processor_affinity);
> +
> +	return 0;
> +}
> +
>   static int __initdata parsed_numa_memblks;
>
>   static int __init
> @@ -404,6 +434,9 @@ int __init acpi_numa_init(void)
>   {
>   	int cnt = 0;
>
> +	if (acpi_disabled)
> +		return -EINVAL;
> +
>   	/*
>   	 * Should not limit number with cpu num that is from NR_CPUS or nr_cpus=
>   	 * SRAT cpu entries could have different order with that in MADT.
> @@ -412,13 +445,15 @@ int __init acpi_numa_init(void)
>
>   	/* SRAT: Static Resource Affinity Table */
>   	if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
> -		struct acpi_subtable_proc srat_proc[2];
> +		struct acpi_subtable_proc srat_proc[3];
>
>   		memset(srat_proc, 0, sizeof(srat_proc));
>   		srat_proc[0].id = ACPI_SRAT_TYPE_CPU_AFFINITY;
>   		srat_proc[0].handler = acpi_parse_processor_affinity;
>   		srat_proc[1].id = ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY;
>   		srat_proc[1].handler = acpi_parse_x2apic_affinity;
> +		srat_proc[1].id = ACPI_SRAT_TYPE_GICC_AFFINITY;
> +		srat_proc[1].handler = acpi_parse_gicc_affinity;

Should be srat_proc[2].id and srat_proc[2].handler, right?

Regards,
Matthias

>
>   		acpi_table_parse_entries_array(ACPI_SIG_SRAT,
>   					sizeof(struct acpi_table_srat),
> diff --git a/include/linux/acpi.h b/include/linux/acpi.h
> index 8010b26..9515db6 100644
> --- a/include/linux/acpi.h
> +++ b/include/linux/acpi.h
> @@ -232,10 +232,25 @@ int acpi_table_parse_madt(enum acpi_madt_type id,
>   int acpi_parse_mcfg (struct acpi_table_header *header);
>   void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
>
> -/* the following four functions are architecture-dependent */
> +/* the following numa functions are architecture-dependent */
>   void acpi_numa_slit_init (struct acpi_table_slit *slit);
> +
> +#if defined(CONFIG_X86) || defined(CONFIG_IA64)
>   void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
> +#else
> +static inline void
> +acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
> +#endif
> +
>   void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
> +
> +#ifdef CONFIG_ARM64
> +void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
> +#else
> +static inline void
> +acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
> +#endif
> +
>   int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
>
>   #ifndef PHYS_CPUID_INVALID
>

[PATCH v7 15/15] acpi, numa: Enable ACPI based NUMA on ARM64

[Matthias Brugger]

On 25/05/16 00:35, David Daney wrote:
> From: Hanjun Guo <hanjun.guo@linaro.org>
>
> Add function needed for cpu to node mapping, and enable ACPI based
> NUMA for ARM64 in Kconfig
>
> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
> Signed-off-by: Robert Richter <rrichter@cavium.com>
> [david.daney at cavium.com added ACPI_NUMA default to y for ARM64]
> Signed-off-by: David Daney <david.daney@cavium.com>
> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
> ---
>   drivers/acpi/Kconfig |  4 ++--
>   drivers/acpi/numa.c  | 37 ++++++++++++++++++++++++++++++++++++-
>   include/linux/acpi.h | 17 ++++++++++++++++-
>   3 files changed, 54 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
> index b7e2e77..dd76b36 100644
> --- a/drivers/acpi/Kconfig
> +++ b/drivers/acpi/Kconfig
> @@ -291,8 +291,8 @@ config ACPI_THERMAL
>   config ACPI_NUMA
>   	bool "NUMA support"
>   	depends on NUMA
> -	depends on (X86 || IA64)
> -	default y if IA64_GENERIC || IA64_SGI_SN2
> +	depends on (X86 || IA64 || ARM64)
> +	default y if IA64_GENERIC || IA64_SGI_SN2 || ARM64
>
>   config ACPI_CUSTOM_DSDT_FILE
>   	string "Custom DSDT Table file to include"
> diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
> index fad6d28..9b7ce40 100644
> --- a/drivers/acpi/numa.c
> +++ b/drivers/acpi/numa.c
> @@ -170,6 +170,18 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header)
>   		}
>   		break;
>
> +	case ACPI_SRAT_TYPE_GICC_AFFINITY:
> +		{
> +			struct acpi_srat_gicc_affinity *p =
> +			    (struct acpi_srat_gicc_affinity *)header;
> +			pr_debug("SRAT Processor (acpi id[0x%04x]) in proximity domain %d %s\n",
> +				 p->acpi_processor_uid,
> +				 p->proximity_domain,
> +				 (p->flags & ACPI_SRAT_GICC_ENABLED) ?
> +				 "enabled" : "disabled");
> +		}
> +		break;
> +
>   	default:
>   		pr_warn("Found unsupported SRAT entry (type = 0x%x)\n",
>   			header->type);
> @@ -360,6 +372,24 @@ acpi_parse_processor_affinity(struct acpi_subtable_header *header,
>   	return 0;
>   }
>
> +static int __init
> +acpi_parse_gicc_affinity(struct acpi_subtable_header *header,
> +			 const unsigned long end)
> +{
> +	struct acpi_srat_gicc_affinity *processor_affinity;
> +
> +	processor_affinity = (struct acpi_srat_gicc_affinity *)header;
> +	if (!processor_affinity)
> +		return -EINVAL;
> +
> +	acpi_table_print_srat_entry(header);
> +
> +	/* let architecture-dependent part to do it */
> +	acpi_numa_gicc_affinity_init(processor_affinity);
> +
> +	return 0;
> +}
> +
>   static int __initdata parsed_numa_memblks;
>
>   static int __init
> @@ -404,6 +434,9 @@ int __init acpi_numa_init(void)
>   {
>   	int cnt = 0;
>
> +	if (acpi_disabled)
> +		return -EINVAL;
> +
>   	/*
>   	 * Should not limit number with cpu num that is from NR_CPUS or nr_cpus=
>   	 * SRAT cpu entries could have different order with that in MADT.
> @@ -412,13 +445,15 @@ int __init acpi_numa_init(void)
>
>   	/* SRAT: Static Resource Affinity Table */
>   	if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
> -		struct acpi_subtable_proc srat_proc[2];
> +		struct acpi_subtable_proc srat_proc[3];
>
>   		memset(srat_proc, 0, sizeof(srat_proc));
>   		srat_proc[0].id = ACPI_SRAT_TYPE_CPU_AFFINITY;
>   		srat_proc[0].handler = acpi_parse_processor_affinity;
>   		srat_proc[1].id = ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY;
>   		srat_proc[1].handler = acpi_parse_x2apic_affinity;
> +		srat_proc[1].id = ACPI_SRAT_TYPE_GICC_AFFINITY;
> +		srat_proc[1].handler = acpi_parse_gicc_affinity;

Should be srat_proc[2].id and srat_proc[2].handler, right?

Regards,
Matthias

>
>   		acpi_table_parse_entries_array(ACPI_SIG_SRAT,
>   					sizeof(struct acpi_table_srat),
> diff --git a/include/linux/acpi.h b/include/linux/acpi.h
> index 8010b26..9515db6 100644
> --- a/include/linux/acpi.h
> +++ b/include/linux/acpi.h
> @@ -232,10 +232,25 @@ int acpi_table_parse_madt(enum acpi_madt_type id,
>   int acpi_parse_mcfg (struct acpi_table_header *header);
>   void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
>
> -/* the following four functions are architecture-dependent */
> +/* the following numa functions are architecture-dependent */
>   void acpi_numa_slit_init (struct acpi_table_slit *slit);
> +
> +#if defined(CONFIG_X86) || defined(CONFIG_IA64)
>   void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
> +#else
> +static inline void
> +acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
> +#endif
> +
>   void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
> +
> +#ifdef CONFIG_ARM64
> +void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
> +#else
> +static inline void
> +acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
> +#endif
> +
>   int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
>
>   #ifndef PHYS_CPUID_INVALID
>

Re: [PATCH v7 15/15] acpi, numa: Enable ACPI based NUMA on ARM64

[Matthias Brugger]

On 25/05/16 00:35, David Daney wrote:
> From: Hanjun Guo <hanjun.guo@linaro.org>
>
> Add function needed for cpu to node mapping, and enable ACPI based
> NUMA for ARM64 in Kconfig
>
> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
> Signed-off-by: Robert Richter <rrichter@cavium.com>
> [david.daney@cavium.com added ACPI_NUMA default to y for ARM64]
> Signed-off-by: David Daney <david.daney@cavium.com>
> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
> ---
>   drivers/acpi/Kconfig |  4 ++--
>   drivers/acpi/numa.c  | 37 ++++++++++++++++++++++++++++++++++++-
>   include/linux/acpi.h | 17 ++++++++++++++++-
>   3 files changed, 54 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
> index b7e2e77..dd76b36 100644
> --- a/drivers/acpi/Kconfig
> +++ b/drivers/acpi/Kconfig
> @@ -291,8 +291,8 @@ config ACPI_THERMAL
>   config ACPI_NUMA
>   	bool "NUMA support"
>   	depends on NUMA
> -	depends on (X86 || IA64)
> -	default y if IA64_GENERIC || IA64_SGI_SN2
> +	depends on (X86 || IA64 || ARM64)
> +	default y if IA64_GENERIC || IA64_SGI_SN2 || ARM64
>
>   config ACPI_CUSTOM_DSDT_FILE
>   	string "Custom DSDT Table file to include"
> diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
> index fad6d28..9b7ce40 100644
> --- a/drivers/acpi/numa.c
> +++ b/drivers/acpi/numa.c
> @@ -170,6 +170,18 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header)
>   		}
>   		break;
>
> +	case ACPI_SRAT_TYPE_GICC_AFFINITY:
> +		{
> +			struct acpi_srat_gicc_affinity *p > +			    (struct acpi_srat_gicc_affinity *)header;
> +			pr_debug("SRAT Processor (acpi id[0x%04x]) in proximity domain %d %s\n",
> +				 p->acpi_processor_uid,
> +				 p->proximity_domain,
> +				 (p->flags & ACPI_SRAT_GICC_ENABLED) ?
> +				 "enabled" : "disabled");
> +		}
> +		break;
> +
>   	default:
>   		pr_warn("Found unsupported SRAT entry (type = 0x%x)\n",
>   			header->type);
> @@ -360,6 +372,24 @@ acpi_parse_processor_affinity(struct acpi_subtable_header *header,
>   	return 0;
>   }
>
> +static int __init
> +acpi_parse_gicc_affinity(struct acpi_subtable_header *header,
> +			 const unsigned long end)
> +{
> +	struct acpi_srat_gicc_affinity *processor_affinity;
> +
> +	processor_affinity = (struct acpi_srat_gicc_affinity *)header;
> +	if (!processor_affinity)
> +		return -EINVAL;
> +
> +	acpi_table_print_srat_entry(header);
> +
> +	/* let architecture-dependent part to do it */
> +	acpi_numa_gicc_affinity_init(processor_affinity);
> +
> +	return 0;
> +}
> +
>   static int __initdata parsed_numa_memblks;
>
>   static int __init
> @@ -404,6 +434,9 @@ int __init acpi_numa_init(void)
>   {
>   	int cnt = 0;
>
> +	if (acpi_disabled)
> +		return -EINVAL;
> +
>   	/*
>   	 * Should not limit number with cpu num that is from NR_CPUS or nr_cpus>   	 * SRAT cpu entries could have different order with that in MADT.
> @@ -412,13 +445,15 @@ int __init acpi_numa_init(void)
>
>   	/* SRAT: Static Resource Affinity Table */
>   	if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
> -		struct acpi_subtable_proc srat_proc[2];
> +		struct acpi_subtable_proc srat_proc[3];
>
>   		memset(srat_proc, 0, sizeof(srat_proc));
>   		srat_proc[0].id = ACPI_SRAT_TYPE_CPU_AFFINITY;
>   		srat_proc[0].handler = acpi_parse_processor_affinity;
>   		srat_proc[1].id = ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY;
>   		srat_proc[1].handler = acpi_parse_x2apic_affinity;
> +		srat_proc[1].id = ACPI_SRAT_TYPE_GICC_AFFINITY;
> +		srat_proc[1].handler = acpi_parse_gicc_affinity;

Should be srat_proc[2].id and srat_proc[2].handler, right?

Regards,
Matthias

>
>   		acpi_table_parse_entries_array(ACPI_SIG_SRAT,
>   					sizeof(struct acpi_table_srat),
> diff --git a/include/linux/acpi.h b/include/linux/acpi.h
> index 8010b26..9515db6 100644
> --- a/include/linux/acpi.h
> +++ b/include/linux/acpi.h
> @@ -232,10 +232,25 @@ int acpi_table_parse_madt(enum acpi_madt_type id,
>   int acpi_parse_mcfg (struct acpi_table_header *header);
>   void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
>
> -/* the following four functions are architecture-dependent */
> +/* the following numa functions are architecture-dependent */
>   void acpi_numa_slit_init (struct acpi_table_slit *slit);
> +
> +#if defined(CONFIG_X86) || defined(CONFIG_IA64)
>   void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
> +#else
> +static inline void
> +acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
> +#endif
> +
>   void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
> +
> +#ifdef CONFIG_ARM64
> +void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
> +#else
> +static inline void
> +acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
> +#endif
> +
>   int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
>
>   #ifndef PHYS_CPUID_INVALID
>

Re: [PATCH v7 00/15] ACPI NUMA support for ARM64

[Robert Richter]

On 04.06.16 00:07:04, Rafael J. Wysocki wrote:
> On Tuesday, May 24, 2016 03:35:30 PM David Daney wrote:
> > From: David Daney <david.daney@cavium.com>
> > 
> > Rebased to Linus' master branch at commit 1d6da87a3241 ("Merge branch
> > 'drm-next' of git://people.freedesktop.org/~airlied/linux")
> > 
> > ACPI 5.1 already introduced NUMA support for ARM64, which can get the
> > NUMA domain information from SRAT and SLIT table, so parse those two
> > tables to get mappings from cpu/mem to numa node configuration and
> > system locality.
> > 
> > v7 updates:
> > 
> >  - Rebased to resolve one merge conflict.
> > 
> >  - New patch 13/15 to enable use of existing MADT parsing code instead
> >    of adding an additional implementation of the parser.
> > 
> >  - Added some Acked-by headers to patches in arm64 arch directories.
> > 
> > v6 updates:
> > 
> >  - Changed message printed in 13/14 to omit meaningless "cpu"
> >    number. (noted by Dennis Chen and Hanjun Guo)
> > 
> >  - New patch 7/14 to print different messages for NUMA disabled case.
> >    (noted by Dennis Chen)
> > 
> >  - Squashed two patches into 14/14.
> > 
> >  - Added Reviewed-by to 4/14
> > 
> > v5 updates:
> > 
> >  - Fixed ia64 build failure by gating some unused functions with #if
> >    CONFIG_{X86,ARM64}.
> > 
> >  - Fixed section mismatch errors for X86 case.
> > 
> >  - Removed unneeded #include from some files.
> > 
> >  - Tested to build cleanly on ARM64, X86_64, IA64
> > 
> > v4 updates:
> > 
> >  - Updated from Hanjun Guo's v3 patches.
> > 
> >  - Rebased on top of v16 of device-tree NUMA patches.
> > 
> >  - Reordered some of the changes so that we don't introduce code and
> >    then change it several times in the patch set.  New code is
> >    introduced in its final form.  Code reused from x86 is first moved
> >    with no change, and then a separate patch to make any needed
> >    changes.
> > 
> >  - code that is used only by ia64, moved to architecture specific
> >    files.
> > 
> > v3 updates:
> >  - Deep investigation about the ACPI_DEBUG_PRINT() and remvoe
> >    that for acpi/numa.c (patch 2/12)
> > 
> >  - Remove the duplicate NULL check for table print (patch 3/12)
> > 
> >  - Introduce CONFIG_ACPI_HAS_NUMA_ARCH_FIXUP to remove duplicate
> >    dummy function for acpi_numa_arch_fixup()
> > 
> >  - Solve the problem that the mapping from logical cpu to numa node
> >    is wrong which spotted out by Lorenzo
> > 
> >  - cleanups for x86 and move acpi_numa_slit_init() and some other
> >    functions to common place, then reduce the duplicate of x86
> >    and arm64 (patch 7-12/12).
> > 
> >  - rebased on top of 4.4 and Ganapat's v9 patch set.
> > 
> > David Daney (4):
> >   arm64, numa: Cleanup NUMA disabled messages.
> >   acpi, numa: move bad_srat() and srat_disabled() to
> >     drivers/acpi/numa.c
> >   acpi, numa, srat: Improve SRAT error detection and add messages.
> >   ACPI / processor: Add acpi_map_madt_entry().
> > 
> > Hanjun Guo (10):
> >   acpi, numa: Use pr_fmt() instead of printk
> >   acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()
> >   acpi, numa: remove duplicate NULL check
> >   acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c
> >   arm64, numa: rework numa_add_memblk()
> >   x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()
> >   acpi, numa: remove unneeded acpi_numa=1
> >   acpi, numa: Move acpi_numa_memory_affinity_init() to
> >     drivers/acpi/numa.c
> >   arm64, acpi, numa: NUMA support based on SRAT and SLIT
> >   acpi, numa: Enable ACPI based NUMA on ARM64
> > 
> > Robert Richter (1):
> >   acpi, numa: Move acpi_numa_arch_fixup() to ia64 only
> > 
> >  arch/arm64/include/asm/acpi.h |   8 ++
> >  arch/arm64/include/asm/numa.h |   2 +
> >  arch/arm64/kernel/Makefile    |   1 +
> >  arch/arm64/kernel/acpi_numa.c | 112 +++++++++++++++++++++
> >  arch/arm64/kernel/smp.c       |   2 +
> >  arch/arm64/mm/numa.c          |  28 ++++--
> >  arch/ia64/include/asm/acpi.h  |   3 +
> >  arch/ia64/kernel/acpi.c       |   2 +-
> >  arch/ia64/kernel/setup.c      |   1 +
> >  arch/x86/include/asm/acpi.h   |   1 -
> >  arch/x86/mm/numa.c            |   2 +-
> >  arch/x86/mm/srat.c            | 116 +---------------------
> >  drivers/acpi/Kconfig          |   4 +-
> >  drivers/acpi/numa.c           | 226 ++++++++++++++++++++++++++++++++----------
> >  drivers/acpi/processor_core.c |  26 ++++-
> >  drivers/of/of_numa.c          |   4 +-
> >  include/acpi/acpi_numa.h      |   4 +
> >  include/acpi/processor.h      |   1 +
> >  include/linux/acpi.h          |  18 +++-
> >  19 files changed, 369 insertions(+), 192 deletions(-)
> >  create mode 100644 arch/arm64/kernel/acpi_numa.c
> 
> All [1-15/15] queued up for 4.8, thanks!

Rafael,

I noticed patch #15 missing in your today's tree, I only found:

 d8b47fca8c23 arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT

Is this intended? It still cleanly applies.

Thanks,

-Robert

Re: [PATCH v7 00/15] ACPI NUMA support for ARM64

[Robert Richter]

On 04.06.16 00:07:04, Rafael J. Wysocki wrote:
> On Tuesday, May 24, 2016 03:35:30 PM David Daney wrote:
> > From: David Daney <david.daney@cavium.com>
> > 
> > Rebased to Linus' master branch at commit 1d6da87a3241 ("Merge branch
> > 'drm-next' of git://people.freedesktop.org/~airlied/linux")
> > 
> > ACPI 5.1 already introduced NUMA support for ARM64, which can get the
> > NUMA domain information from SRAT and SLIT table, so parse those two
> > tables to get mappings from cpu/mem to numa node configuration and
> > system locality.
> > 
> > v7 updates:
> > 
> >  - Rebased to resolve one merge conflict.
> > 
> >  - New patch 13/15 to enable use of existing MADT parsing code instead
> >    of adding an additional implementation of the parser.
> > 
> >  - Added some Acked-by headers to patches in arm64 arch directories.
> > 
> > v6 updates:
> > 
> >  - Changed message printed in 13/14 to omit meaningless "cpu"
> >    number. (noted by Dennis Chen and Hanjun Guo)
> > 
> >  - New patch 7/14 to print different messages for NUMA disabled case.
> >    (noted by Dennis Chen)
> > 
> >  - Squashed two patches into 14/14.
> > 
> >  - Added Reviewed-by to 4/14
> > 
> > v5 updates:
> > 
> >  - Fixed ia64 build failure by gating some unused functions with #if
> >    CONFIG_{X86,ARM64}.
> > 
> >  - Fixed section mismatch errors for X86 case.
> > 
> >  - Removed unneeded #include from some files.
> > 
> >  - Tested to build cleanly on ARM64, X86_64, IA64
> > 
> > v4 updates:
> > 
> >  - Updated from Hanjun Guo's v3 patches.
> > 
> >  - Rebased on top of v16 of device-tree NUMA patches.
> > 
> >  - Reordered some of the changes so that we don't introduce code and
> >    then change it several times in the patch set.  New code is
> >    introduced in its final form.  Code reused from x86 is first moved
> >    with no change, and then a separate patch to make any needed
> >    changes.
> > 
> >  - code that is used only by ia64, moved to architecture specific
> >    files.
> > 
> > v3 updates:
> >  - Deep investigation about the ACPI_DEBUG_PRINT() and remvoe
> >    that for acpi/numa.c (patch 2/12)
> > 
> >  - Remove the duplicate NULL check for table print (patch 3/12)
> > 
> >  - Introduce CONFIG_ACPI_HAS_NUMA_ARCH_FIXUP to remove duplicate
> >    dummy function for acpi_numa_arch_fixup()
> > 
> >  - Solve the problem that the mapping from logical cpu to numa node
> >    is wrong which spotted out by Lorenzo
> > 
> >  - cleanups for x86 and move acpi_numa_slit_init() and some other
> >    functions to common place, then reduce the duplicate of x86
> >    and arm64 (patch 7-12/12).
> > 
> >  - rebased on top of 4.4 and Ganapat's v9 patch set.
> > 
> > David Daney (4):
> >   arm64, numa: Cleanup NUMA disabled messages.
> >   acpi, numa: move bad_srat() and srat_disabled() to
> >     drivers/acpi/numa.c
> >   acpi, numa, srat: Improve SRAT error detection and add messages.
> >   ACPI / processor: Add acpi_map_madt_entry().
> > 
> > Hanjun Guo (10):
> >   acpi, numa: Use pr_fmt() instead of printk
> >   acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()
> >   acpi, numa: remove duplicate NULL check
> >   acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c
> >   arm64, numa: rework numa_add_memblk()
> >   x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()
> >   acpi, numa: remove unneeded acpi_numa=1
> >   acpi, numa: Move acpi_numa_memory_affinity_init() to
> >     drivers/acpi/numa.c
> >   arm64, acpi, numa: NUMA support based on SRAT and SLIT
> >   acpi, numa: Enable ACPI based NUMA on ARM64
> > 
> > Robert Richter (1):
> >   acpi, numa: Move acpi_numa_arch_fixup() to ia64 only
> > 
> >  arch/arm64/include/asm/acpi.h |   8 ++
> >  arch/arm64/include/asm/numa.h |   2 +
> >  arch/arm64/kernel/Makefile    |   1 +
> >  arch/arm64/kernel/acpi_numa.c | 112 +++++++++++++++++++++
> >  arch/arm64/kernel/smp.c       |   2 +
> >  arch/arm64/mm/numa.c          |  28 ++++--
> >  arch/ia64/include/asm/acpi.h  |   3 +
> >  arch/ia64/kernel/acpi.c       |   2 +-
> >  arch/ia64/kernel/setup.c      |   1 +
> >  arch/x86/include/asm/acpi.h   |   1 -
> >  arch/x86/mm/numa.c            |   2 +-
> >  arch/x86/mm/srat.c            | 116 +---------------------
> >  drivers/acpi/Kconfig          |   4 +-
> >  drivers/acpi/numa.c           | 226 ++++++++++++++++++++++++++++++++----------
> >  drivers/acpi/processor_core.c |  26 ++++-
> >  drivers/of/of_numa.c          |   4 +-
> >  include/acpi/acpi_numa.h      |   4 +
> >  include/acpi/processor.h      |   1 +
> >  include/linux/acpi.h          |  18 +++-
> >  19 files changed, 369 insertions(+), 192 deletions(-)
> >  create mode 100644 arch/arm64/kernel/acpi_numa.c
> 
> All [1-15/15] queued up for 4.8, thanks!

Rafael,

I noticed patch #15 missing in your today's tree, I only found:

 d8b47fca8c23 arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT

Is this intended? It still cleanly applies.

Thanks,

-Robert

[PATCH v7 00/15] ACPI NUMA support for ARM64

[Robert Richter]

On 04.06.16 00:07:04, Rafael J. Wysocki wrote:
> On Tuesday, May 24, 2016 03:35:30 PM David Daney wrote:
> > From: David Daney <david.daney@cavium.com>
> > 
> > Rebased to Linus' master branch at commit 1d6da87a3241 ("Merge branch
> > 'drm-next' of git://people.freedesktop.org/~airlied/linux")
> > 
> > ACPI 5.1 already introduced NUMA support for ARM64, which can get the
> > NUMA domain information from SRAT and SLIT table, so parse those two
> > tables to get mappings from cpu/mem to numa node configuration and
> > system locality.
> > 
> > v7 updates:
> > 
> >  - Rebased to resolve one merge conflict.
> > 
> >  - New patch 13/15 to enable use of existing MADT parsing code instead
> >    of adding an additional implementation of the parser.
> > 
> >  - Added some Acked-by headers to patches in arm64 arch directories.
> > 
> > v6 updates:
> > 
> >  - Changed message printed in 13/14 to omit meaningless "cpu"
> >    number. (noted by Dennis Chen and Hanjun Guo)
> > 
> >  - New patch 7/14 to print different messages for NUMA disabled case.
> >    (noted by Dennis Chen)
> > 
> >  - Squashed two patches into 14/14.
> > 
> >  - Added Reviewed-by to 4/14
> > 
> > v5 updates:
> > 
> >  - Fixed ia64 build failure by gating some unused functions with #if
> >    CONFIG_{X86,ARM64}.
> > 
> >  - Fixed section mismatch errors for X86 case.
> > 
> >  - Removed unneeded #include from some files.
> > 
> >  - Tested to build cleanly on ARM64, X86_64, IA64
> > 
> > v4 updates:
> > 
> >  - Updated from Hanjun Guo's v3 patches.
> > 
> >  - Rebased on top of v16 of device-tree NUMA patches.
> > 
> >  - Reordered some of the changes so that we don't introduce code and
> >    then change it several times in the patch set.  New code is
> >    introduced in its final form.  Code reused from x86 is first moved
> >    with no change, and then a separate patch to make any needed
> >    changes.
> > 
> >  - code that is used only by ia64, moved to architecture specific
> >    files.
> > 
> > v3 updates:
> >  - Deep investigation about the ACPI_DEBUG_PRINT() and remvoe
> >    that for acpi/numa.c (patch 2/12)
> > 
> >  - Remove the duplicate NULL check for table print (patch 3/12)
> > 
> >  - Introduce CONFIG_ACPI_HAS_NUMA_ARCH_FIXUP to remove duplicate
> >    dummy function for acpi_numa_arch_fixup()
> > 
> >  - Solve the problem that the mapping from logical cpu to numa node
> >    is wrong which spotted out by Lorenzo
> > 
> >  - cleanups for x86 and move acpi_numa_slit_init() and some other
> >    functions to common place, then reduce the duplicate of x86
> >    and arm64 (patch 7-12/12).
> > 
> >  - rebased on top of 4.4 and Ganapat's v9 patch set.
> > 
> > David Daney (4):
> >   arm64, numa: Cleanup NUMA disabled messages.
> >   acpi, numa: move bad_srat() and srat_disabled() to
> >     drivers/acpi/numa.c
> >   acpi, numa, srat: Improve SRAT error detection and add messages.
> >   ACPI / processor: Add acpi_map_madt_entry().
> > 
> > Hanjun Guo (10):
> >   acpi, numa: Use pr_fmt() instead of printk
> >   acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()
> >   acpi, numa: remove duplicate NULL check
> >   acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c
> >   arm64, numa: rework numa_add_memblk()
> >   x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()
> >   acpi, numa: remove unneeded acpi_numa=1
> >   acpi, numa: Move acpi_numa_memory_affinity_init() to
> >     drivers/acpi/numa.c
> >   arm64, acpi, numa: NUMA support based on SRAT and SLIT
> >   acpi, numa: Enable ACPI based NUMA on ARM64
> > 
> > Robert Richter (1):
> >   acpi, numa: Move acpi_numa_arch_fixup() to ia64 only
> > 
> >  arch/arm64/include/asm/acpi.h |   8 ++
> >  arch/arm64/include/asm/numa.h |   2 +
> >  arch/arm64/kernel/Makefile    |   1 +
> >  arch/arm64/kernel/acpi_numa.c | 112 +++++++++++++++++++++
> >  arch/arm64/kernel/smp.c       |   2 +
> >  arch/arm64/mm/numa.c          |  28 ++++--
> >  arch/ia64/include/asm/acpi.h  |   3 +
> >  arch/ia64/kernel/acpi.c       |   2 +-
> >  arch/ia64/kernel/setup.c      |   1 +
> >  arch/x86/include/asm/acpi.h   |   1 -
> >  arch/x86/mm/numa.c            |   2 +-
> >  arch/x86/mm/srat.c            | 116 +---------------------
> >  drivers/acpi/Kconfig          |   4 +-
> >  drivers/acpi/numa.c           | 226 ++++++++++++++++++++++++++++++++----------
> >  drivers/acpi/processor_core.c |  26 ++++-
> >  drivers/of/of_numa.c          |   4 +-
> >  include/acpi/acpi_numa.h      |   4 +
> >  include/acpi/processor.h      |   1 +
> >  include/linux/acpi.h          |  18 +++-
> >  19 files changed, 369 insertions(+), 192 deletions(-)
> >  create mode 100644 arch/arm64/kernel/acpi_numa.c
> 
> All [1-15/15] queued up for 4.8, thanks!

Rafael,

I noticed patch #15 missing in your today's tree, I only found:

 d8b47fca8c23 arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT

Is this intended? It still cleanly applies.

Thanks,

-Robert

Re: [PATCH v7 00/15] ACPI NUMA support for ARM64

[Robert Richter]

On 04.06.16 00:07:04, Rafael J. Wysocki wrote:
> On Tuesday, May 24, 2016 03:35:30 PM David Daney wrote:
> > From: David Daney <david.daney@cavium.com>
> > 
> > Rebased to Linus' master branch at commit 1d6da87a3241 ("Merge branch
> > 'drm-next' of git://people.freedesktop.org/~airlied/linux")
> > 
> > ACPI 5.1 already introduced NUMA support for ARM64, which can get the
> > NUMA domain information from SRAT and SLIT table, so parse those two
> > tables to get mappings from cpu/mem to numa node configuration and
> > system locality.
> > 
> > v7 updates:
> > 
> >  - Rebased to resolve one merge conflict.
> > 
> >  - New patch 13/15 to enable use of existing MADT parsing code instead
> >    of adding an additional implementation of the parser.
> > 
> >  - Added some Acked-by headers to patches in arm64 arch directories.
> > 
> > v6 updates:
> > 
> >  - Changed message printed in 13/14 to omit meaningless "cpu"
> >    number. (noted by Dennis Chen and Hanjun Guo)
> > 
> >  - New patch 7/14 to print different messages for NUMA disabled case.
> >    (noted by Dennis Chen)
> > 
> >  - Squashed two patches into 14/14.
> > 
> >  - Added Reviewed-by to 4/14
> > 
> > v5 updates:
> > 
> >  - Fixed ia64 build failure by gating some unused functions with #if
> >    CONFIG_{X86,ARM64}.
> > 
> >  - Fixed section mismatch errors for X86 case.
> > 
> >  - Removed unneeded #include from some files.
> > 
> >  - Tested to build cleanly on ARM64, X86_64, IA64
> > 
> > v4 updates:
> > 
> >  - Updated from Hanjun Guo's v3 patches.
> > 
> >  - Rebased on top of v16 of device-tree NUMA patches.
> > 
> >  - Reordered some of the changes so that we don't introduce code and
> >    then change it several times in the patch set.  New code is
> >    introduced in its final form.  Code reused from x86 is first moved
> >    with no change, and then a separate patch to make any needed
> >    changes.
> > 
> >  - code that is used only by ia64, moved to architecture specific
> >    files.
> > 
> > v3 updates:
> >  - Deep investigation about the ACPI_DEBUG_PRINT() and remvoe
> >    that for acpi/numa.c (patch 2/12)
> > 
> >  - Remove the duplicate NULL check for table print (patch 3/12)
> > 
> >  - Introduce CONFIG_ACPI_HAS_NUMA_ARCH_FIXUP to remove duplicate
> >    dummy function for acpi_numa_arch_fixup()
> > 
> >  - Solve the problem that the mapping from logical cpu to numa node
> >    is wrong which spotted out by Lorenzo
> > 
> >  - cleanups for x86 and move acpi_numa_slit_init() and some other
> >    functions to common place, then reduce the duplicate of x86
> >    and arm64 (patch 7-12/12).
> > 
> >  - rebased on top of 4.4 and Ganapat's v9 patch set.
> > 
> > David Daney (4):
> >   arm64, numa: Cleanup NUMA disabled messages.
> >   acpi, numa: move bad_srat() and srat_disabled() to
> >     drivers/acpi/numa.c
> >   acpi, numa, srat: Improve SRAT error detection and add messages.
> >   ACPI / processor: Add acpi_map_madt_entry().
> > 
> > Hanjun Guo (10):
> >   acpi, numa: Use pr_fmt() instead of printk
> >   acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()
> >   acpi, numa: remove duplicate NULL check
> >   acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c
> >   arm64, numa: rework numa_add_memblk()
> >   x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()
> >   acpi, numa: remove unneeded acpi_numa=1
> >   acpi, numa: Move acpi_numa_memory_affinity_init() to
> >     drivers/acpi/numa.c
> >   arm64, acpi, numa: NUMA support based on SRAT and SLIT
> >   acpi, numa: Enable ACPI based NUMA on ARM64
> > 
> > Robert Richter (1):
> >   acpi, numa: Move acpi_numa_arch_fixup() to ia64 only
> > 
> >  arch/arm64/include/asm/acpi.h |   8 ++
> >  arch/arm64/include/asm/numa.h |   2 +
> >  arch/arm64/kernel/Makefile    |   1 +
> >  arch/arm64/kernel/acpi_numa.c | 112 +++++++++++++++++++++
> >  arch/arm64/kernel/smp.c       |   2 +
> >  arch/arm64/mm/numa.c          |  28 ++++--
> >  arch/ia64/include/asm/acpi.h  |   3 +
> >  arch/ia64/kernel/acpi.c       |   2 +-
> >  arch/ia64/kernel/setup.c      |   1 +
> >  arch/x86/include/asm/acpi.h   |   1 -
> >  arch/x86/mm/numa.c            |   2 +-
> >  arch/x86/mm/srat.c            | 116 +---------------------
> >  drivers/acpi/Kconfig          |   4 +-
> >  drivers/acpi/numa.c           | 226 ++++++++++++++++++++++++++++++++----------
> >  drivers/acpi/processor_core.c |  26 ++++-
> >  drivers/of/of_numa.c          |   4 +-
> >  include/acpi/acpi_numa.h      |   4 +
> >  include/acpi/processor.h      |   1 +
> >  include/linux/acpi.h          |  18 +++-
> >  19 files changed, 369 insertions(+), 192 deletions(-)
> >  create mode 100644 arch/arm64/kernel/acpi_numa.c
> 
> All [1-15/15] queued up for 4.8, thanks!

Rafael,

I noticed patch #15 missing in your today's tree, I only found:

 d8b47fca8c23 arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT

Is this intended? It still cleanly applies.

Thanks,

-Robert

Re: [PATCH v7 00/15] ACPI NUMA support for ARM64

[Robert Richter]

On 10.06.16 12:20:05, Robert Richter wrote:
> On 04.06.16 00:07:04, Rafael J. Wysocki wrote:
> > On Tuesday, May 24, 2016 03:35:30 PM David Daney wrote:
> > > From: David Daney <david.daney@cavium.com>
> > > 
> > > Rebased to Linus' master branch at commit 1d6da87a3241 ("Merge branch
> > > 'drm-next' of git://people.freedesktop.org/~airlied/linux")
> > > 
> > > ACPI 5.1 already introduced NUMA support for ARM64, which can get the
> > > NUMA domain information from SRAT and SLIT table, so parse those two
> > > tables to get mappings from cpu/mem to numa node configuration and
> > > system locality.
> > > 
> > > v7 updates:
> > > 
> > >  - Rebased to resolve one merge conflict.
> > > 
> > >  - New patch 13/15 to enable use of existing MADT parsing code instead
> > >    of adding an additional implementation of the parser.
> > > 
> > >  - Added some Acked-by headers to patches in arm64 arch directories.
> > > 
> > > v6 updates:
> > > 
> > >  - Changed message printed in 13/14 to omit meaningless "cpu"
> > >    number. (noted by Dennis Chen and Hanjun Guo)
> > > 
> > >  - New patch 7/14 to print different messages for NUMA disabled case.
> > >    (noted by Dennis Chen)
> > > 
> > >  - Squashed two patches into 14/14.
> > > 
> > >  - Added Reviewed-by to 4/14
> > > 
> > > v5 updates:
> > > 
> > >  - Fixed ia64 build failure by gating some unused functions with #if
> > >    CONFIG_{X86,ARM64}.
> > > 
> > >  - Fixed section mismatch errors for X86 case.
> > > 
> > >  - Removed unneeded #include from some files.
> > > 
> > >  - Tested to build cleanly on ARM64, X86_64, IA64
> > > 
> > > v4 updates:
> > > 
> > >  - Updated from Hanjun Guo's v3 patches.
> > > 
> > >  - Rebased on top of v16 of device-tree NUMA patches.
> > > 
> > >  - Reordered some of the changes so that we don't introduce code and
> > >    then change it several times in the patch set.  New code is
> > >    introduced in its final form.  Code reused from x86 is first moved
> > >    with no change, and then a separate patch to make any needed
> > >    changes.
> > > 
> > >  - code that is used only by ia64, moved to architecture specific
> > >    files.
> > > 
> > > v3 updates:
> > >  - Deep investigation about the ACPI_DEBUG_PRINT() and remvoe
> > >    that for acpi/numa.c (patch 2/12)
> > > 
> > >  - Remove the duplicate NULL check for table print (patch 3/12)
> > > 
> > >  - Introduce CONFIG_ACPI_HAS_NUMA_ARCH_FIXUP to remove duplicate
> > >    dummy function for acpi_numa_arch_fixup()
> > > 
> > >  - Solve the problem that the mapping from logical cpu to numa node
> > >    is wrong which spotted out by Lorenzo
> > > 
> > >  - cleanups for x86 and move acpi_numa_slit_init() and some other
> > >    functions to common place, then reduce the duplicate of x86
> > >    and arm64 (patch 7-12/12).
> > > 
> > >  - rebased on top of 4.4 and Ganapat's v9 patch set.
> > > 
> > > David Daney (4):
> > >   arm64, numa: Cleanup NUMA disabled messages.
> > >   acpi, numa: move bad_srat() and srat_disabled() to
> > >     drivers/acpi/numa.c
> > >   acpi, numa, srat: Improve SRAT error detection and add messages.
> > >   ACPI / processor: Add acpi_map_madt_entry().
> > > 
> > > Hanjun Guo (10):
> > >   acpi, numa: Use pr_fmt() instead of printk
> > >   acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()
> > >   acpi, numa: remove duplicate NULL check
> > >   acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c
> > >   arm64, numa: rework numa_add_memblk()
> > >   x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()
> > >   acpi, numa: remove unneeded acpi_numa=1
> > >   acpi, numa: Move acpi_numa_memory_affinity_init() to
> > >     drivers/acpi/numa.c
> > >   arm64, acpi, numa: NUMA support based on SRAT and SLIT
> > >   acpi, numa: Enable ACPI based NUMA on ARM64
> > > 
> > > Robert Richter (1):
> > >   acpi, numa: Move acpi_numa_arch_fixup() to ia64 only
> > > 
> > >  arch/arm64/include/asm/acpi.h |   8 ++
> > >  arch/arm64/include/asm/numa.h |   2 +
> > >  arch/arm64/kernel/Makefile    |   1 +
> > >  arch/arm64/kernel/acpi_numa.c | 112 +++++++++++++++++++++
> > >  arch/arm64/kernel/smp.c       |   2 +
> > >  arch/arm64/mm/numa.c          |  28 ++++--
> > >  arch/ia64/include/asm/acpi.h  |   3 +
> > >  arch/ia64/kernel/acpi.c       |   2 +-
> > >  arch/ia64/kernel/setup.c      |   1 +
> > >  arch/x86/include/asm/acpi.h   |   1 -
> > >  arch/x86/mm/numa.c            |   2 +-
> > >  arch/x86/mm/srat.c            | 116 +---------------------
> > >  drivers/acpi/Kconfig          |   4 +-
> > >  drivers/acpi/numa.c           | 226 ++++++++++++++++++++++++++++++++----------
> > >  drivers/acpi/processor_core.c |  26 ++++-
> > >  drivers/of/of_numa.c          |   4 +-
> > >  include/acpi/acpi_numa.h      |   4 +
> > >  include/acpi/processor.h      |   1 +
> > >  include/linux/acpi.h          |  18 +++-
> > >  19 files changed, 369 insertions(+), 192 deletions(-)
> > >  create mode 100644 arch/arm64/kernel/acpi_numa.c
> > 
> > All [1-15/15] queued up for 4.8, thanks!
> 
> Rafael,
> 
> I noticed patch #15 missing in your today's tree, I only found:
> 
>  d8b47fca8c23 arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT
> 
> Is this intended? It still cleanly applies.

Ah, just seen Matthias' comment, I guess we need to resend a fixed
version.

-Robert

Re: [PATCH v7 00/15] ACPI NUMA support for ARM64

[Robert Richter]

On 10.06.16 12:20:05, Robert Richter wrote:
> On 04.06.16 00:07:04, Rafael J. Wysocki wrote:
> > On Tuesday, May 24, 2016 03:35:30 PM David Daney wrote:
> > > From: David Daney <david.daney@cavium.com>
> > > 
> > > Rebased to Linus' master branch at commit 1d6da87a3241 ("Merge branch
> > > 'drm-next' of git://people.freedesktop.org/~airlied/linux")
> > > 
> > > ACPI 5.1 already introduced NUMA support for ARM64, which can get the
> > > NUMA domain information from SRAT and SLIT table, so parse those two
> > > tables to get mappings from cpu/mem to numa node configuration and
> > > system locality.
> > > 
> > > v7 updates:
> > > 
> > >  - Rebased to resolve one merge conflict.
> > > 
> > >  - New patch 13/15 to enable use of existing MADT parsing code instead
> > >    of adding an additional implementation of the parser.
> > > 
> > >  - Added some Acked-by headers to patches in arm64 arch directories.
> > > 
> > > v6 updates:
> > > 
> > >  - Changed message printed in 13/14 to omit meaningless "cpu"
> > >    number. (noted by Dennis Chen and Hanjun Guo)
> > > 
> > >  - New patch 7/14 to print different messages for NUMA disabled case.
> > >    (noted by Dennis Chen)
> > > 
> > >  - Squashed two patches into 14/14.
> > > 
> > >  - Added Reviewed-by to 4/14
> > > 
> > > v5 updates:
> > > 
> > >  - Fixed ia64 build failure by gating some unused functions with #if
> > >    CONFIG_{X86,ARM64}.
> > > 
> > >  - Fixed section mismatch errors for X86 case.
> > > 
> > >  - Removed unneeded #include from some files.
> > > 
> > >  - Tested to build cleanly on ARM64, X86_64, IA64
> > > 
> > > v4 updates:
> > > 
> > >  - Updated from Hanjun Guo's v3 patches.
> > > 
> > >  - Rebased on top of v16 of device-tree NUMA patches.
> > > 
> > >  - Reordered some of the changes so that we don't introduce code and
> > >    then change it several times in the patch set.  New code is
> > >    introduced in its final form.  Code reused from x86 is first moved
> > >    with no change, and then a separate patch to make any needed
> > >    changes.
> > > 
> > >  - code that is used only by ia64, moved to architecture specific
> > >    files.
> > > 
> > > v3 updates:
> > >  - Deep investigation about the ACPI_DEBUG_PRINT() and remvoe
> > >    that for acpi/numa.c (patch 2/12)
> > > 
> > >  - Remove the duplicate NULL check for table print (patch 3/12)
> > > 
> > >  - Introduce CONFIG_ACPI_HAS_NUMA_ARCH_FIXUP to remove duplicate
> > >    dummy function for acpi_numa_arch_fixup()
> > > 
> > >  - Solve the problem that the mapping from logical cpu to numa node
> > >    is wrong which spotted out by Lorenzo
> > > 
> > >  - cleanups for x86 and move acpi_numa_slit_init() and some other
> > >    functions to common place, then reduce the duplicate of x86
> > >    and arm64 (patch 7-12/12).
> > > 
> > >  - rebased on top of 4.4 and Ganapat's v9 patch set.
> > > 
> > > David Daney (4):
> > >   arm64, numa: Cleanup NUMA disabled messages.
> > >   acpi, numa: move bad_srat() and srat_disabled() to
> > >     drivers/acpi/numa.c
> > >   acpi, numa, srat: Improve SRAT error detection and add messages.
> > >   ACPI / processor: Add acpi_map_madt_entry().
> > > 
> > > Hanjun Guo (10):
> > >   acpi, numa: Use pr_fmt() instead of printk
> > >   acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()
> > >   acpi, numa: remove duplicate NULL check
> > >   acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c
> > >   arm64, numa: rework numa_add_memblk()
> > >   x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()
> > >   acpi, numa: remove unneeded acpi_numa=1
> > >   acpi, numa: Move acpi_numa_memory_affinity_init() to
> > >     drivers/acpi/numa.c
> > >   arm64, acpi, numa: NUMA support based on SRAT and SLIT
> > >   acpi, numa: Enable ACPI based NUMA on ARM64
> > > 
> > > Robert Richter (1):
> > >   acpi, numa: Move acpi_numa_arch_fixup() to ia64 only
> > > 
> > >  arch/arm64/include/asm/acpi.h |   8 ++
> > >  arch/arm64/include/asm/numa.h |   2 +
> > >  arch/arm64/kernel/Makefile    |   1 +
> > >  arch/arm64/kernel/acpi_numa.c | 112 +++++++++++++++++++++
> > >  arch/arm64/kernel/smp.c       |   2 +
> > >  arch/arm64/mm/numa.c          |  28 ++++--
> > >  arch/ia64/include/asm/acpi.h  |   3 +
> > >  arch/ia64/kernel/acpi.c       |   2 +-
> > >  arch/ia64/kernel/setup.c      |   1 +
> > >  arch/x86/include/asm/acpi.h   |   1 -
> > >  arch/x86/mm/numa.c            |   2 +-
> > >  arch/x86/mm/srat.c            | 116 +---------------------
> > >  drivers/acpi/Kconfig          |   4 +-
> > >  drivers/acpi/numa.c           | 226 ++++++++++++++++++++++++++++++++----------
> > >  drivers/acpi/processor_core.c |  26 ++++-
> > >  drivers/of/of_numa.c          |   4 +-
> > >  include/acpi/acpi_numa.h      |   4 +
> > >  include/acpi/processor.h      |   1 +
> > >  include/linux/acpi.h          |  18 +++-
> > >  19 files changed, 369 insertions(+), 192 deletions(-)
> > >  create mode 100644 arch/arm64/kernel/acpi_numa.c
> > 
> > All [1-15/15] queued up for 4.8, thanks!
> 
> Rafael,
> 
> I noticed patch #15 missing in your today's tree, I only found:
> 
>  d8b47fca8c23 arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT
> 
> Is this intended? It still cleanly applies.

Ah, just seen Matthias' comment, I guess we need to resend a fixed
version.

-Robert

[PATCH v7 00/15] ACPI NUMA support for ARM64

[Robert Richter]

On 10.06.16 12:20:05, Robert Richter wrote:
> On 04.06.16 00:07:04, Rafael J. Wysocki wrote:
> > On Tuesday, May 24, 2016 03:35:30 PM David Daney wrote:
> > > From: David Daney <david.daney@cavium.com>
> > > 
> > > Rebased to Linus' master branch at commit 1d6da87a3241 ("Merge branch
> > > 'drm-next' of git://people.freedesktop.org/~airlied/linux")
> > > 
> > > ACPI 5.1 already introduced NUMA support for ARM64, which can get the
> > > NUMA domain information from SRAT and SLIT table, so parse those two
> > > tables to get mappings from cpu/mem to numa node configuration and
> > > system locality.
> > > 
> > > v7 updates:
> > > 
> > >  - Rebased to resolve one merge conflict.
> > > 
> > >  - New patch 13/15 to enable use of existing MADT parsing code instead
> > >    of adding an additional implementation of the parser.
> > > 
> > >  - Added some Acked-by headers to patches in arm64 arch directories.
> > > 
> > > v6 updates:
> > > 
> > >  - Changed message printed in 13/14 to omit meaningless "cpu"
> > >    number. (noted by Dennis Chen and Hanjun Guo)
> > > 
> > >  - New patch 7/14 to print different messages for NUMA disabled case.
> > >    (noted by Dennis Chen)
> > > 
> > >  - Squashed two patches into 14/14.
> > > 
> > >  - Added Reviewed-by to 4/14
> > > 
> > > v5 updates:
> > > 
> > >  - Fixed ia64 build failure by gating some unused functions with #if
> > >    CONFIG_{X86,ARM64}.
> > > 
> > >  - Fixed section mismatch errors for X86 case.
> > > 
> > >  - Removed unneeded #include from some files.
> > > 
> > >  - Tested to build cleanly on ARM64, X86_64, IA64
> > > 
> > > v4 updates:
> > > 
> > >  - Updated from Hanjun Guo's v3 patches.
> > > 
> > >  - Rebased on top of v16 of device-tree NUMA patches.
> > > 
> > >  - Reordered some of the changes so that we don't introduce code and
> > >    then change it several times in the patch set.  New code is
> > >    introduced in its final form.  Code reused from x86 is first moved
> > >    with no change, and then a separate patch to make any needed
> > >    changes.
> > > 
> > >  - code that is used only by ia64, moved to architecture specific
> > >    files.
> > > 
> > > v3 updates:
> > >  - Deep investigation about the ACPI_DEBUG_PRINT() and remvoe
> > >    that for acpi/numa.c (patch 2/12)
> > > 
> > >  - Remove the duplicate NULL check for table print (patch 3/12)
> > > 
> > >  - Introduce CONFIG_ACPI_HAS_NUMA_ARCH_FIXUP to remove duplicate
> > >    dummy function for acpi_numa_arch_fixup()
> > > 
> > >  - Solve the problem that the mapping from logical cpu to numa node
> > >    is wrong which spotted out by Lorenzo
> > > 
> > >  - cleanups for x86 and move acpi_numa_slit_init() and some other
> > >    functions to common place, then reduce the duplicate of x86
> > >    and arm64 (patch 7-12/12).
> > > 
> > >  - rebased on top of 4.4 and Ganapat's v9 patch set.
> > > 
> > > David Daney (4):
> > >   arm64, numa: Cleanup NUMA disabled messages.
> > >   acpi, numa: move bad_srat() and srat_disabled() to
> > >     drivers/acpi/numa.c
> > >   acpi, numa, srat: Improve SRAT error detection and add messages.
> > >   ACPI / processor: Add acpi_map_madt_entry().
> > > 
> > > Hanjun Guo (10):
> > >   acpi, numa: Use pr_fmt() instead of printk
> > >   acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()
> > >   acpi, numa: remove duplicate NULL check
> > >   acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c
> > >   arm64, numa: rework numa_add_memblk()
> > >   x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()
> > >   acpi, numa: remove unneeded acpi_numa=1
> > >   acpi, numa: Move acpi_numa_memory_affinity_init() to
> > >     drivers/acpi/numa.c
> > >   arm64, acpi, numa: NUMA support based on SRAT and SLIT
> > >   acpi, numa: Enable ACPI based NUMA on ARM64
> > > 
> > > Robert Richter (1):
> > >   acpi, numa: Move acpi_numa_arch_fixup() to ia64 only
> > > 
> > >  arch/arm64/include/asm/acpi.h |   8 ++
> > >  arch/arm64/include/asm/numa.h |   2 +
> > >  arch/arm64/kernel/Makefile    |   1 +
> > >  arch/arm64/kernel/acpi_numa.c | 112 +++++++++++++++++++++
> > >  arch/arm64/kernel/smp.c       |   2 +
> > >  arch/arm64/mm/numa.c          |  28 ++++--
> > >  arch/ia64/include/asm/acpi.h  |   3 +
> > >  arch/ia64/kernel/acpi.c       |   2 +-
> > >  arch/ia64/kernel/setup.c      |   1 +
> > >  arch/x86/include/asm/acpi.h   |   1 -
> > >  arch/x86/mm/numa.c            |   2 +-
> > >  arch/x86/mm/srat.c            | 116 +---------------------
> > >  drivers/acpi/Kconfig          |   4 +-
> > >  drivers/acpi/numa.c           | 226 ++++++++++++++++++++++++++++++++----------
> > >  drivers/acpi/processor_core.c |  26 ++++-
> > >  drivers/of/of_numa.c          |   4 +-
> > >  include/acpi/acpi_numa.h      |   4 +
> > >  include/acpi/processor.h      |   1 +
> > >  include/linux/acpi.h          |  18 +++-
> > >  19 files changed, 369 insertions(+), 192 deletions(-)
> > >  create mode 100644 arch/arm64/kernel/acpi_numa.c
> > 
> > All [1-15/15] queued up for 4.8, thanks!
> 
> Rafael,
> 
> I noticed patch #15 missing in your today's tree, I only found:
> 
>  d8b47fca8c23 arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT
> 
> Is this intended? It still cleanly applies.

Ah, just seen Matthias' comment, I guess we need to resend a fixed
version.

-Robert

Re: [PATCH v7 00/15] ACPI NUMA support for ARM64

[Robert Richter]

On 10.06.16 12:20:05, Robert Richter wrote:
> On 04.06.16 00:07:04, Rafael J. Wysocki wrote:
> > On Tuesday, May 24, 2016 03:35:30 PM David Daney wrote:
> > > From: David Daney <david.daney@cavium.com>
> > > 
> > > Rebased to Linus' master branch at commit 1d6da87a3241 ("Merge branch
> > > 'drm-next' of git://people.freedesktop.org/~airlied/linux")
> > > 
> > > ACPI 5.1 already introduced NUMA support for ARM64, which can get the
> > > NUMA domain information from SRAT and SLIT table, so parse those two
> > > tables to get mappings from cpu/mem to numa node configuration and
> > > system locality.
> > > 
> > > v7 updates:
> > > 
> > >  - Rebased to resolve one merge conflict.
> > > 
> > >  - New patch 13/15 to enable use of existing MADT parsing code instead
> > >    of adding an additional implementation of the parser.
> > > 
> > >  - Added some Acked-by headers to patches in arm64 arch directories.
> > > 
> > > v6 updates:
> > > 
> > >  - Changed message printed in 13/14 to omit meaningless "cpu"
> > >    number. (noted by Dennis Chen and Hanjun Guo)
> > > 
> > >  - New patch 7/14 to print different messages for NUMA disabled case.
> > >    (noted by Dennis Chen)
> > > 
> > >  - Squashed two patches into 14/14.
> > > 
> > >  - Added Reviewed-by to 4/14
> > > 
> > > v5 updates:
> > > 
> > >  - Fixed ia64 build failure by gating some unused functions with #if
> > >    CONFIG_{X86,ARM64}.
> > > 
> > >  - Fixed section mismatch errors for X86 case.
> > > 
> > >  - Removed unneeded #include from some files.
> > > 
> > >  - Tested to build cleanly on ARM64, X86_64, IA64
> > > 
> > > v4 updates:
> > > 
> > >  - Updated from Hanjun Guo's v3 patches.
> > > 
> > >  - Rebased on top of v16 of device-tree NUMA patches.
> > > 
> > >  - Reordered some of the changes so that we don't introduce code and
> > >    then change it several times in the patch set.  New code is
> > >    introduced in its final form.  Code reused from x86 is first moved
> > >    with no change, and then a separate patch to make any needed
> > >    changes.
> > > 
> > >  - code that is used only by ia64, moved to architecture specific
> > >    files.
> > > 
> > > v3 updates:
> > >  - Deep investigation about the ACPI_DEBUG_PRINT() and remvoe
> > >    that for acpi/numa.c (patch 2/12)
> > > 
> > >  - Remove the duplicate NULL check for table print (patch 3/12)
> > > 
> > >  - Introduce CONFIG_ACPI_HAS_NUMA_ARCH_FIXUP to remove duplicate
> > >    dummy function for acpi_numa_arch_fixup()
> > > 
> > >  - Solve the problem that the mapping from logical cpu to numa node
> > >    is wrong which spotted out by Lorenzo
> > > 
> > >  - cleanups for x86 and move acpi_numa_slit_init() and some other
> > >    functions to common place, then reduce the duplicate of x86
> > >    and arm64 (patch 7-12/12).
> > > 
> > >  - rebased on top of 4.4 and Ganapat's v9 patch set.
> > > 
> > > David Daney (4):
> > >   arm64, numa: Cleanup NUMA disabled messages.
> > >   acpi, numa: move bad_srat() and srat_disabled() to
> > >     drivers/acpi/numa.c
> > >   acpi, numa, srat: Improve SRAT error detection and add messages.
> > >   ACPI / processor: Add acpi_map_madt_entry().
> > > 
> > > Hanjun Guo (10):
> > >   acpi, numa: Use pr_fmt() instead of printk
> > >   acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()
> > >   acpi, numa: remove duplicate NULL check
> > >   acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c
> > >   arm64, numa: rework numa_add_memblk()
> > >   x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()
> > >   acpi, numa: remove unneeded acpi_numa=1
> > >   acpi, numa: Move acpi_numa_memory_affinity_init() to
> > >     drivers/acpi/numa.c
> > >   arm64, acpi, numa: NUMA support based on SRAT and SLIT
> > >   acpi, numa: Enable ACPI based NUMA on ARM64
> > > 
> > > Robert Richter (1):
> > >   acpi, numa: Move acpi_numa_arch_fixup() to ia64 only
> > > 
> > >  arch/arm64/include/asm/acpi.h |   8 ++
> > >  arch/arm64/include/asm/numa.h |   2 +
> > >  arch/arm64/kernel/Makefile    |   1 +
> > >  arch/arm64/kernel/acpi_numa.c | 112 +++++++++++++++++++++
> > >  arch/arm64/kernel/smp.c       |   2 +
> > >  arch/arm64/mm/numa.c          |  28 ++++--
> > >  arch/ia64/include/asm/acpi.h  |   3 +
> > >  arch/ia64/kernel/acpi.c       |   2 +-
> > >  arch/ia64/kernel/setup.c      |   1 +
> > >  arch/x86/include/asm/acpi.h   |   1 -
> > >  arch/x86/mm/numa.c            |   2 +-
> > >  arch/x86/mm/srat.c            | 116 +---------------------
> > >  drivers/acpi/Kconfig          |   4 +-
> > >  drivers/acpi/numa.c           | 226 ++++++++++++++++++++++++++++++++----------
> > >  drivers/acpi/processor_core.c |  26 ++++-
> > >  drivers/of/of_numa.c          |   4 +-
> > >  include/acpi/acpi_numa.h      |   4 +
> > >  include/acpi/processor.h      |   1 +
> > >  include/linux/acpi.h          |  18 +++-
> > >  19 files changed, 369 insertions(+), 192 deletions(-)
> > >  create mode 100644 arch/arm64/kernel/acpi_numa.c
> > 
> > All [1-15/15] queued up for 4.8, thanks!
> 
> Rafael,
> 
> I noticed patch #15 missing in your today's tree, I only found:
> 
>  d8b47fca8c23 arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT
> 
> Is this intended? It still cleanly applies.

Ah, just seen Matthias' comment, I guess we need to resend a fixed
version.

-Robert

Re: [PATCH v7 00/15] ACPI NUMA support for ARM64

[Rafael J. Wysocki]

On Friday, June 10, 2016 12:26:15 PM Robert Richter wrote:
> On 10.06.16 12:20:05, Robert Richter wrote:
> > On 04.06.16 00:07:04, Rafael J. Wysocki wrote:
> > > On Tuesday, May 24, 2016 03:35:30 PM David Daney wrote:
> > > > From: David Daney <david.daney@cavium.com>
> > > > 
> > > > Rebased to Linus' master branch at commit 1d6da87a3241 ("Merge branch
> > > > 'drm-next' of git://people.freedesktop.org/~airlied/linux")
> > > > 
> > > > ACPI 5.1 already introduced NUMA support for ARM64, which can get the
> > > > NUMA domain information from SRAT and SLIT table, so parse those two
> > > > tables to get mappings from cpu/mem to numa node configuration and
> > > > system locality.
> > > > 
> > > > v7 updates:
> > > > 
> > > >  - Rebased to resolve one merge conflict.
> > > > 
> > > >  - New patch 13/15 to enable use of existing MADT parsing code instead
> > > >    of adding an additional implementation of the parser.
> > > > 
> > > >  - Added some Acked-by headers to patches in arm64 arch directories.
> > > > 
> > > > v6 updates:
> > > > 
> > > >  - Changed message printed in 13/14 to omit meaningless "cpu"
> > > >    number. (noted by Dennis Chen and Hanjun Guo)
> > > > 
> > > >  - New patch 7/14 to print different messages for NUMA disabled case.
> > > >    (noted by Dennis Chen)
> > > > 
> > > >  - Squashed two patches into 14/14.
> > > > 
> > > >  - Added Reviewed-by to 4/14
> > > > 
> > > > v5 updates:
> > > > 
> > > >  - Fixed ia64 build failure by gating some unused functions with #if
> > > >    CONFIG_{X86,ARM64}.
> > > > 
> > > >  - Fixed section mismatch errors for X86 case.
> > > > 
> > > >  - Removed unneeded #include from some files.
> > > > 
> > > >  - Tested to build cleanly on ARM64, X86_64, IA64
> > > > 
> > > > v4 updates:
> > > > 
> > > >  - Updated from Hanjun Guo's v3 patches.
> > > > 
> > > >  - Rebased on top of v16 of device-tree NUMA patches.
> > > > 
> > > >  - Reordered some of the changes so that we don't introduce code and
> > > >    then change it several times in the patch set.  New code is
> > > >    introduced in its final form.  Code reused from x86 is first moved
> > > >    with no change, and then a separate patch to make any needed
> > > >    changes.
> > > > 
> > > >  - code that is used only by ia64, moved to architecture specific
> > > >    files.
> > > > 
> > > > v3 updates:
> > > >  - Deep investigation about the ACPI_DEBUG_PRINT() and remvoe
> > > >    that for acpi/numa.c (patch 2/12)
> > > > 
> > > >  - Remove the duplicate NULL check for table print (patch 3/12)
> > > > 
> > > >  - Introduce CONFIG_ACPI_HAS_NUMA_ARCH_FIXUP to remove duplicate
> > > >    dummy function for acpi_numa_arch_fixup()
> > > > 
> > > >  - Solve the problem that the mapping from logical cpu to numa node
> > > >    is wrong which spotted out by Lorenzo
> > > > 
> > > >  - cleanups for x86 and move acpi_numa_slit_init() and some other
> > > >    functions to common place, then reduce the duplicate of x86
> > > >    and arm64 (patch 7-12/12).
> > > > 
> > > >  - rebased on top of 4.4 and Ganapat's v9 patch set.
> > > > 
> > > > David Daney (4):
> > > >   arm64, numa: Cleanup NUMA disabled messages.
> > > >   acpi, numa: move bad_srat() and srat_disabled() to
> > > >     drivers/acpi/numa.c
> > > >   acpi, numa, srat: Improve SRAT error detection and add messages.
> > > >   ACPI / processor: Add acpi_map_madt_entry().
> > > > 
> > > > Hanjun Guo (10):
> > > >   acpi, numa: Use pr_fmt() instead of printk
> > > >   acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()
> > > >   acpi, numa: remove duplicate NULL check
> > > >   acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c
> > > >   arm64, numa: rework numa_add_memblk()
> > > >   x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()
> > > >   acpi, numa: remove unneeded acpi_numa=1
> > > >   acpi, numa: Move acpi_numa_memory_affinity_init() to
> > > >     drivers/acpi/numa.c
> > > >   arm64, acpi, numa: NUMA support based on SRAT and SLIT
> > > >   acpi, numa: Enable ACPI based NUMA on ARM64
> > > > 
> > > > Robert Richter (1):
> > > >   acpi, numa: Move acpi_numa_arch_fixup() to ia64 only
> > > > 
> > > >  arch/arm64/include/asm/acpi.h |   8 ++
> > > >  arch/arm64/include/asm/numa.h |   2 +
> > > >  arch/arm64/kernel/Makefile    |   1 +
> > > >  arch/arm64/kernel/acpi_numa.c | 112 +++++++++++++++++++++
> > > >  arch/arm64/kernel/smp.c       |   2 +
> > > >  arch/arm64/mm/numa.c          |  28 ++++--
> > > >  arch/ia64/include/asm/acpi.h  |   3 +
> > > >  arch/ia64/kernel/acpi.c       |   2 +-
> > > >  arch/ia64/kernel/setup.c      |   1 +
> > > >  arch/x86/include/asm/acpi.h   |   1 -
> > > >  arch/x86/mm/numa.c            |   2 +-
> > > >  arch/x86/mm/srat.c            | 116 +---------------------
> > > >  drivers/acpi/Kconfig          |   4 +-
> > > >  drivers/acpi/numa.c           | 226 ++++++++++++++++++++++++++++++++----------
> > > >  drivers/acpi/processor_core.c |  26 ++++-
> > > >  drivers/of/of_numa.c          |   4 +-
> > > >  include/acpi/acpi_numa.h      |   4 +
> > > >  include/acpi/processor.h      |   1 +
> > > >  include/linux/acpi.h          |  18 +++-
> > > >  19 files changed, 369 insertions(+), 192 deletions(-)
> > > >  create mode 100644 arch/arm64/kernel/acpi_numa.c
> > > 
> > > All [1-15/15] queued up for 4.8, thanks!
> > 
> > Rafael,
> > 
> > I noticed patch #15 missing in your today's tree, I only found:
> > 
> >  d8b47fca8c23 arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT
> > 
> > Is this intended? It still cleanly applies.
> 
> Ah, just seen Matthias' comment, I guess we need to resend a fixed
> version.

Right.

Sorry about the confusion, I was about to ask for an update patch later
today.

Thanks,
Rafael

[PATCH v7 00/15] ACPI NUMA support for ARM64

[Rafael J. Wysocki]

On Friday, June 10, 2016 12:26:15 PM Robert Richter wrote:
> On 10.06.16 12:20:05, Robert Richter wrote:
> > On 04.06.16 00:07:04, Rafael J. Wysocki wrote:
> > > On Tuesday, May 24, 2016 03:35:30 PM David Daney wrote:
> > > > From: David Daney <david.daney@cavium.com>
> > > > 
> > > > Rebased to Linus' master branch at commit 1d6da87a3241 ("Merge branch
> > > > 'drm-next' of git://people.freedesktop.org/~airlied/linux")
> > > > 
> > > > ACPI 5.1 already introduced NUMA support for ARM64, which can get the
> > > > NUMA domain information from SRAT and SLIT table, so parse those two
> > > > tables to get mappings from cpu/mem to numa node configuration and
> > > > system locality.
> > > > 
> > > > v7 updates:
> > > > 
> > > >  - Rebased to resolve one merge conflict.
> > > > 
> > > >  - New patch 13/15 to enable use of existing MADT parsing code instead
> > > >    of adding an additional implementation of the parser.
> > > > 
> > > >  - Added some Acked-by headers to patches in arm64 arch directories.
> > > > 
> > > > v6 updates:
> > > > 
> > > >  - Changed message printed in 13/14 to omit meaningless "cpu"
> > > >    number. (noted by Dennis Chen and Hanjun Guo)
> > > > 
> > > >  - New patch 7/14 to print different messages for NUMA disabled case.
> > > >    (noted by Dennis Chen)
> > > > 
> > > >  - Squashed two patches into 14/14.
> > > > 
> > > >  - Added Reviewed-by to 4/14
> > > > 
> > > > v5 updates:
> > > > 
> > > >  - Fixed ia64 build failure by gating some unused functions with #if
> > > >    CONFIG_{X86,ARM64}.
> > > > 
> > > >  - Fixed section mismatch errors for X86 case.
> > > > 
> > > >  - Removed unneeded #include from some files.
> > > > 
> > > >  - Tested to build cleanly on ARM64, X86_64, IA64
> > > > 
> > > > v4 updates:
> > > > 
> > > >  - Updated from Hanjun Guo's v3 patches.
> > > > 
> > > >  - Rebased on top of v16 of device-tree NUMA patches.
> > > > 
> > > >  - Reordered some of the changes so that we don't introduce code and
> > > >    then change it several times in the patch set.  New code is
> > > >    introduced in its final form.  Code reused from x86 is first moved
> > > >    with no change, and then a separate patch to make any needed
> > > >    changes.
> > > > 
> > > >  - code that is used only by ia64, moved to architecture specific
> > > >    files.
> > > > 
> > > > v3 updates:
> > > >  - Deep investigation about the ACPI_DEBUG_PRINT() and remvoe
> > > >    that for acpi/numa.c (patch 2/12)
> > > > 
> > > >  - Remove the duplicate NULL check for table print (patch 3/12)
> > > > 
> > > >  - Introduce CONFIG_ACPI_HAS_NUMA_ARCH_FIXUP to remove duplicate
> > > >    dummy function for acpi_numa_arch_fixup()
> > > > 
> > > >  - Solve the problem that the mapping from logical cpu to numa node
> > > >    is wrong which spotted out by Lorenzo
> > > > 
> > > >  - cleanups for x86 and move acpi_numa_slit_init() and some other
> > > >    functions to common place, then reduce the duplicate of x86
> > > >    and arm64 (patch 7-12/12).
> > > > 
> > > >  - rebased on top of 4.4 and Ganapat's v9 patch set.
> > > > 
> > > > David Daney (4):
> > > >   arm64, numa: Cleanup NUMA disabled messages.
> > > >   acpi, numa: move bad_srat() and srat_disabled() to
> > > >     drivers/acpi/numa.c
> > > >   acpi, numa, srat: Improve SRAT error detection and add messages.
> > > >   ACPI / processor: Add acpi_map_madt_entry().
> > > > 
> > > > Hanjun Guo (10):
> > > >   acpi, numa: Use pr_fmt() instead of printk
> > > >   acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()
> > > >   acpi, numa: remove duplicate NULL check
> > > >   acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c
> > > >   arm64, numa: rework numa_add_memblk()
> > > >   x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()
> > > >   acpi, numa: remove unneeded acpi_numa=1
> > > >   acpi, numa: Move acpi_numa_memory_affinity_init() to
> > > >     drivers/acpi/numa.c
> > > >   arm64, acpi, numa: NUMA support based on SRAT and SLIT
> > > >   acpi, numa: Enable ACPI based NUMA on ARM64
> > > > 
> > > > Robert Richter (1):
> > > >   acpi, numa: Move acpi_numa_arch_fixup() to ia64 only
> > > > 
> > > >  arch/arm64/include/asm/acpi.h |   8 ++
> > > >  arch/arm64/include/asm/numa.h |   2 +
> > > >  arch/arm64/kernel/Makefile    |   1 +
> > > >  arch/arm64/kernel/acpi_numa.c | 112 +++++++++++++++++++++
> > > >  arch/arm64/kernel/smp.c       |   2 +
> > > >  arch/arm64/mm/numa.c          |  28 ++++--
> > > >  arch/ia64/include/asm/acpi.h  |   3 +
> > > >  arch/ia64/kernel/acpi.c       |   2 +-
> > > >  arch/ia64/kernel/setup.c      |   1 +
> > > >  arch/x86/include/asm/acpi.h   |   1 -
> > > >  arch/x86/mm/numa.c            |   2 +-
> > > >  arch/x86/mm/srat.c            | 116 +---------------------
> > > >  drivers/acpi/Kconfig          |   4 +-
> > > >  drivers/acpi/numa.c           | 226 ++++++++++++++++++++++++++++++++----------
> > > >  drivers/acpi/processor_core.c |  26 ++++-
> > > >  drivers/of/of_numa.c          |   4 +-
> > > >  include/acpi/acpi_numa.h      |   4 +
> > > >  include/acpi/processor.h      |   1 +
> > > >  include/linux/acpi.h          |  18 +++-
> > > >  19 files changed, 369 insertions(+), 192 deletions(-)
> > > >  create mode 100644 arch/arm64/kernel/acpi_numa.c
> > > 
> > > All [1-15/15] queued up for 4.8, thanks!
> > 
> > Rafael,
> > 
> > I noticed patch #15 missing in your today's tree, I only found:
> > 
> >  d8b47fca8c23 arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT
> > 
> > Is this intended? It still cleanly applies.
> 
> Ah, just seen Matthias' comment, I guess we need to resend a fixed
> version.

Right.

Sorry about the confusion, I was about to ask for an update patch later
today.

Thanks,
Rafael

Re: [PATCH v7 00/15] ACPI NUMA support for ARM64

[Rafael J. Wysocki]

On Friday, June 10, 2016 12:26:15 PM Robert Richter wrote:
> On 10.06.16 12:20:05, Robert Richter wrote:
> > On 04.06.16 00:07:04, Rafael J. Wysocki wrote:
> > > On Tuesday, May 24, 2016 03:35:30 PM David Daney wrote:
> > > > From: David Daney <david.daney@cavium.com>
> > > > 
> > > > Rebased to Linus' master branch at commit 1d6da87a3241 ("Merge branch
> > > > 'drm-next' of git://people.freedesktop.org/~airlied/linux")
> > > > 
> > > > ACPI 5.1 already introduced NUMA support for ARM64, which can get the
> > > > NUMA domain information from SRAT and SLIT table, so parse those two
> > > > tables to get mappings from cpu/mem to numa node configuration and
> > > > system locality.
> > > > 
> > > > v7 updates:
> > > > 
> > > >  - Rebased to resolve one merge conflict.
> > > > 
> > > >  - New patch 13/15 to enable use of existing MADT parsing code instead
> > > >    of adding an additional implementation of the parser.
> > > > 
> > > >  - Added some Acked-by headers to patches in arm64 arch directories.
> > > > 
> > > > v6 updates:
> > > > 
> > > >  - Changed message printed in 13/14 to omit meaningless "cpu"
> > > >    number. (noted by Dennis Chen and Hanjun Guo)
> > > > 
> > > >  - New patch 7/14 to print different messages for NUMA disabled case.
> > > >    (noted by Dennis Chen)
> > > > 
> > > >  - Squashed two patches into 14/14.
> > > > 
> > > >  - Added Reviewed-by to 4/14
> > > > 
> > > > v5 updates:
> > > > 
> > > >  - Fixed ia64 build failure by gating some unused functions with #if
> > > >    CONFIG_{X86,ARM64}.
> > > > 
> > > >  - Fixed section mismatch errors for X86 case.
> > > > 
> > > >  - Removed unneeded #include from some files.
> > > > 
> > > >  - Tested to build cleanly on ARM64, X86_64, IA64
> > > > 
> > > > v4 updates:
> > > > 
> > > >  - Updated from Hanjun Guo's v3 patches.
> > > > 
> > > >  - Rebased on top of v16 of device-tree NUMA patches.
> > > > 
> > > >  - Reordered some of the changes so that we don't introduce code and
> > > >    then change it several times in the patch set.  New code is
> > > >    introduced in its final form.  Code reused from x86 is first moved
> > > >    with no change, and then a separate patch to make any needed
> > > >    changes.
> > > > 
> > > >  - code that is used only by ia64, moved to architecture specific
> > > >    files.
> > > > 
> > > > v3 updates:
> > > >  - Deep investigation about the ACPI_DEBUG_PRINT() and remvoe
> > > >    that for acpi/numa.c (patch 2/12)
> > > > 
> > > >  - Remove the duplicate NULL check for table print (patch 3/12)
> > > > 
> > > >  - Introduce CONFIG_ACPI_HAS_NUMA_ARCH_FIXUP to remove duplicate
> > > >    dummy function for acpi_numa_arch_fixup()
> > > > 
> > > >  - Solve the problem that the mapping from logical cpu to numa node
> > > >    is wrong which spotted out by Lorenzo
> > > > 
> > > >  - cleanups for x86 and move acpi_numa_slit_init() and some other
> > > >    functions to common place, then reduce the duplicate of x86
> > > >    and arm64 (patch 7-12/12).
> > > > 
> > > >  - rebased on top of 4.4 and Ganapat's v9 patch set.
> > > > 
> > > > David Daney (4):
> > > >   arm64, numa: Cleanup NUMA disabled messages.
> > > >   acpi, numa: move bad_srat() and srat_disabled() to
> > > >     drivers/acpi/numa.c
> > > >   acpi, numa, srat: Improve SRAT error detection and add messages.
> > > >   ACPI / processor: Add acpi_map_madt_entry().
> > > > 
> > > > Hanjun Guo (10):
> > > >   acpi, numa: Use pr_fmt() instead of printk
> > > >   acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()
> > > >   acpi, numa: remove duplicate NULL check
> > > >   acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c
> > > >   arm64, numa: rework numa_add_memblk()
> > > >   x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()
> > > >   acpi, numa: remove unneeded acpi_numa=1
> > > >   acpi, numa: Move acpi_numa_memory_affinity_init() to
> > > >     drivers/acpi/numa.c
> > > >   arm64, acpi, numa: NUMA support based on SRAT and SLIT
> > > >   acpi, numa: Enable ACPI based NUMA on ARM64
> > > > 
> > > > Robert Richter (1):
> > > >   acpi, numa: Move acpi_numa_arch_fixup() to ia64 only
> > > > 
> > > >  arch/arm64/include/asm/acpi.h |   8 ++
> > > >  arch/arm64/include/asm/numa.h |   2 +
> > > >  arch/arm64/kernel/Makefile    |   1 +
> > > >  arch/arm64/kernel/acpi_numa.c | 112 +++++++++++++++++++++
> > > >  arch/arm64/kernel/smp.c       |   2 +
> > > >  arch/arm64/mm/numa.c          |  28 ++++--
> > > >  arch/ia64/include/asm/acpi.h  |   3 +
> > > >  arch/ia64/kernel/acpi.c       |   2 +-
> > > >  arch/ia64/kernel/setup.c      |   1 +
> > > >  arch/x86/include/asm/acpi.h   |   1 -
> > > >  arch/x86/mm/numa.c            |   2 +-
> > > >  arch/x86/mm/srat.c            | 116 +---------------------
> > > >  drivers/acpi/Kconfig          |   4 +-
> > > >  drivers/acpi/numa.c           | 226 ++++++++++++++++++++++++++++++++----------
> > > >  drivers/acpi/processor_core.c |  26 ++++-
> > > >  drivers/of/of_numa.c          |   4 +-
> > > >  include/acpi/acpi_numa.h      |   4 +
> > > >  include/acpi/processor.h      |   1 +
> > > >  include/linux/acpi.h          |  18 +++-
> > > >  19 files changed, 369 insertions(+), 192 deletions(-)
> > > >  create mode 100644 arch/arm64/kernel/acpi_numa.c
> > > 
> > > All [1-15/15] queued up for 4.8, thanks!
> > 
> > Rafael,
> > 
> > I noticed patch #15 missing in your today's tree, I only found:
> > 
> >  d8b47fca8c23 arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT
> > 
> > Is this intended? It still cleanly applies.
> 
> Ah, just seen Matthias' comment, I guess we need to resend a fixed
> version.

Right.

Sorry about the confusion, I was about to ask for an update patch later
today.

Thanks,
Rafael

Re: [PATCH v7 15/15] acpi, numa: Enable ACPI based NUMA on ARM64

[Hanjun Guo]

On 2016/6/10 3:47, Matthias Brugger wrote:
>
>
> On 25/05/16 00:35, David Daney wrote:
>> From: Hanjun Guo <hanjun.guo@linaro.org>
>>
>> Add function needed for cpu to node mapping, and enable ACPI based
>> NUMA for ARM64 in Kconfig
>>
>> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
>> Signed-off-by: Robert Richter <rrichter@cavium.com>
>> [david.daney@cavium.com added ACPI_NUMA default to y for ARM64]
>> Signed-off-by: David Daney <david.daney@cavium.com>
>> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
>> ---
>>   drivers/acpi/Kconfig |  4 ++--
>>   drivers/acpi/numa.c  | 37 ++++++++++++++++++++++++++++++++++++-
>>   include/linux/acpi.h | 17 ++++++++++++++++-
>>   3 files changed, 54 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
>> index b7e2e77..dd76b36 100644
>> --- a/drivers/acpi/Kconfig
>> +++ b/drivers/acpi/Kconfig
>> @@ -291,8 +291,8 @@ config ACPI_THERMAL
>>   config ACPI_NUMA
>>       bool "NUMA support"
>>       depends on NUMA
>> -    depends on (X86 || IA64)
>> -    default y if IA64_GENERIC || IA64_SGI_SN2
>> +    depends on (X86 || IA64 || ARM64)
>> +    default y if IA64_GENERIC || IA64_SGI_SN2 || ARM64
>>
>>   config ACPI_CUSTOM_DSDT_FILE
>>       string "Custom DSDT Table file to include"
>> diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
>> index fad6d28..9b7ce40 100644
>> --- a/drivers/acpi/numa.c
>> +++ b/drivers/acpi/numa.c
>> @@ -170,6 +170,18 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header)
>>           }
>>           break;
>>
>> +    case ACPI_SRAT_TYPE_GICC_AFFINITY:
>> +        {
>> +            struct acpi_srat_gicc_affinity *p =
>> +                (struct acpi_srat_gicc_affinity *)header;
>> +            pr_debug("SRAT Processor (acpi id[0x%04x]) in proximity domain %d %s\n",
>> +                 p->acpi_processor_uid,
>> +                 p->proximity_domain,
>> +                 (p->flags & ACPI_SRAT_GICC_ENABLED) ?
>> +                 "enabled" : "disabled");
>> +        }
>> +        break;
>> +
>>       default:
>>           pr_warn("Found unsupported SRAT entry (type = 0x%x)\n",
>>               header->type);
>> @@ -360,6 +372,24 @@ acpi_parse_processor_affinity(struct acpi_subtable_header *header,
>>       return 0;
>>   }
>>
>> +static int __init
>> +acpi_parse_gicc_affinity(struct acpi_subtable_header *header,
>> +             const unsigned long end)
>> +{
>> +    struct acpi_srat_gicc_affinity *processor_affinity;
>> +
>> +    processor_affinity = (struct acpi_srat_gicc_affinity *)header;
>> +    if (!processor_affinity)
>> +        return -EINVAL;
>> +
>> +    acpi_table_print_srat_entry(header);
>> +
>> +    /* let architecture-dependent part to do it */
>> +    acpi_numa_gicc_affinity_init(processor_affinity);
>> +
>> +    return 0;
>> +}
>> +
>>   static int __initdata parsed_numa_memblks;
>>
>>   static int __init
>> @@ -404,6 +434,9 @@ int __init acpi_numa_init(void)
>>   {
>>       int cnt = 0;
>>
>> +    if (acpi_disabled)
>> +        return -EINVAL;
>> +
>>       /*
>>        * Should not limit number with cpu num that is from NR_CPUS or nr_cpus=
>>        * SRAT cpu entries could have different order with that in MADT.
>> @@ -412,13 +445,15 @@ int __init acpi_numa_init(void)
>>
>>       /* SRAT: Static Resource Affinity Table */
>>       if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
>> -        struct acpi_subtable_proc srat_proc[2];
>> +        struct acpi_subtable_proc srat_proc[3];
>>
>>           memset(srat_proc, 0, sizeof(srat_proc));
>>           srat_proc[0].id = ACPI_SRAT_TYPE_CPU_AFFINITY;
>>           srat_proc[0].handler = acpi_parse_processor_affinity;
>>           srat_proc[1].id = ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY;
>>           srat_proc[1].handler = acpi_parse_x2apic_affinity;
>> +        srat_proc[1].id = ACPI_SRAT_TYPE_GICC_AFFINITY;
>> +        srat_proc[1].handler = acpi_parse_gicc_affinity;
>
> Should be srat_proc[2].id and srat_proc[2].handler, right?

Good catch, will send a updated version shortly.

Thanks
Hanjun

Re: [PATCH v7 15/15] acpi, numa: Enable ACPI based NUMA on ARM64

[Hanjun Guo]

On 2016/6/10 3:47, Matthias Brugger wrote:
>
>
> On 25/05/16 00:35, David Daney wrote:
>> From: Hanjun Guo <hanjun.guo@linaro.org>
>>
>> Add function needed for cpu to node mapping, and enable ACPI based
>> NUMA for ARM64 in Kconfig
>>
>> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
>> Signed-off-by: Robert Richter <rrichter@cavium.com>
>> [david.daney@cavium.com added ACPI_NUMA default to y for ARM64]
>> Signed-off-by: David Daney <david.daney@cavium.com>
>> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
>> ---
>>   drivers/acpi/Kconfig |  4 ++--
>>   drivers/acpi/numa.c  | 37 ++++++++++++++++++++++++++++++++++++-
>>   include/linux/acpi.h | 17 ++++++++++++++++-
>>   3 files changed, 54 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
>> index b7e2e77..dd76b36 100644
>> --- a/drivers/acpi/Kconfig
>> +++ b/drivers/acpi/Kconfig
>> @@ -291,8 +291,8 @@ config ACPI_THERMAL
>>   config ACPI_NUMA
>>       bool "NUMA support"
>>       depends on NUMA
>> -    depends on (X86 || IA64)
>> -    default y if IA64_GENERIC || IA64_SGI_SN2
>> +    depends on (X86 || IA64 || ARM64)
>> +    default y if IA64_GENERIC || IA64_SGI_SN2 || ARM64
>>
>>   config ACPI_CUSTOM_DSDT_FILE
>>       string "Custom DSDT Table file to include"
>> diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
>> index fad6d28..9b7ce40 100644
>> --- a/drivers/acpi/numa.c
>> +++ b/drivers/acpi/numa.c
>> @@ -170,6 +170,18 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header)
>>           }
>>           break;
>>
>> +    case ACPI_SRAT_TYPE_GICC_AFFINITY:
>> +        {
>> +            struct acpi_srat_gicc_affinity *p =
>> +                (struct acpi_srat_gicc_affinity *)header;
>> +            pr_debug("SRAT Processor (acpi id[0x%04x]) in proximity domain %d %s\n",
>> +                 p->acpi_processor_uid,
>> +                 p->proximity_domain,
>> +                 (p->flags & ACPI_SRAT_GICC_ENABLED) ?
>> +                 "enabled" : "disabled");
>> +        }
>> +        break;
>> +
>>       default:
>>           pr_warn("Found unsupported SRAT entry (type = 0x%x)\n",
>>               header->type);
>> @@ -360,6 +372,24 @@ acpi_parse_processor_affinity(struct acpi_subtable_header *header,
>>       return 0;
>>   }
>>
>> +static int __init
>> +acpi_parse_gicc_affinity(struct acpi_subtable_header *header,
>> +             const unsigned long end)
>> +{
>> +    struct acpi_srat_gicc_affinity *processor_affinity;
>> +
>> +    processor_affinity = (struct acpi_srat_gicc_affinity *)header;
>> +    if (!processor_affinity)
>> +        return -EINVAL;
>> +
>> +    acpi_table_print_srat_entry(header);
>> +
>> +    /* let architecture-dependent part to do it */
>> +    acpi_numa_gicc_affinity_init(processor_affinity);
>> +
>> +    return 0;
>> +}
>> +
>>   static int __initdata parsed_numa_memblks;
>>
>>   static int __init
>> @@ -404,6 +434,9 @@ int __init acpi_numa_init(void)
>>   {
>>       int cnt = 0;
>>
>> +    if (acpi_disabled)
>> +        return -EINVAL;
>> +
>>       /*
>>        * Should not limit number with cpu num that is from NR_CPUS or nr_cpus=
>>        * SRAT cpu entries could have different order with that in MADT.
>> @@ -412,13 +445,15 @@ int __init acpi_numa_init(void)
>>
>>       /* SRAT: Static Resource Affinity Table */
>>       if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
>> -        struct acpi_subtable_proc srat_proc[2];
>> +        struct acpi_subtable_proc srat_proc[3];
>>
>>           memset(srat_proc, 0, sizeof(srat_proc));
>>           srat_proc[0].id = ACPI_SRAT_TYPE_CPU_AFFINITY;
>>           srat_proc[0].handler = acpi_parse_processor_affinity;
>>           srat_proc[1].id = ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY;
>>           srat_proc[1].handler = acpi_parse_x2apic_affinity;
>> +        srat_proc[1].id = ACPI_SRAT_TYPE_GICC_AFFINITY;
>> +        srat_proc[1].handler = acpi_parse_gicc_affinity;
>
> Should be srat_proc[2].id and srat_proc[2].handler, right?

Good catch, will send a updated version shortly.

Thanks
Hanjun

[PATCH v7 15/15] acpi, numa: Enable ACPI based NUMA on ARM64

[Hanjun Guo]

On 2016/6/10 3:47, Matthias Brugger wrote:
>
>
> On 25/05/16 00:35, David Daney wrote:
>> From: Hanjun Guo <hanjun.guo@linaro.org>
>>
>> Add function needed for cpu to node mapping, and enable ACPI based
>> NUMA for ARM64 in Kconfig
>>
>> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
>> Signed-off-by: Robert Richter <rrichter@cavium.com>
>> [david.daney at cavium.com added ACPI_NUMA default to y for ARM64]
>> Signed-off-by: David Daney <david.daney@cavium.com>
>> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
>> ---
>>   drivers/acpi/Kconfig |  4 ++--
>>   drivers/acpi/numa.c  | 37 ++++++++++++++++++++++++++++++++++++-
>>   include/linux/acpi.h | 17 ++++++++++++++++-
>>   3 files changed, 54 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
>> index b7e2e77..dd76b36 100644
>> --- a/drivers/acpi/Kconfig
>> +++ b/drivers/acpi/Kconfig
>> @@ -291,8 +291,8 @@ config ACPI_THERMAL
>>   config ACPI_NUMA
>>       bool "NUMA support"
>>       depends on NUMA
>> -    depends on (X86 || IA64)
>> -    default y if IA64_GENERIC || IA64_SGI_SN2
>> +    depends on (X86 || IA64 || ARM64)
>> +    default y if IA64_GENERIC || IA64_SGI_SN2 || ARM64
>>
>>   config ACPI_CUSTOM_DSDT_FILE
>>       string "Custom DSDT Table file to include"
>> diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
>> index fad6d28..9b7ce40 100644
>> --- a/drivers/acpi/numa.c
>> +++ b/drivers/acpi/numa.c
>> @@ -170,6 +170,18 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header)
>>           }
>>           break;
>>
>> +    case ACPI_SRAT_TYPE_GICC_AFFINITY:
>> +        {
>> +            struct acpi_srat_gicc_affinity *p =
>> +                (struct acpi_srat_gicc_affinity *)header;
>> +            pr_debug("SRAT Processor (acpi id[0x%04x]) in proximity domain %d %s\n",
>> +                 p->acpi_processor_uid,
>> +                 p->proximity_domain,
>> +                 (p->flags & ACPI_SRAT_GICC_ENABLED) ?
>> +                 "enabled" : "disabled");
>> +        }
>> +        break;
>> +
>>       default:
>>           pr_warn("Found unsupported SRAT entry (type = 0x%x)\n",
>>               header->type);
>> @@ -360,6 +372,24 @@ acpi_parse_processor_affinity(struct acpi_subtable_header *header,
>>       return 0;
>>   }
>>
>> +static int __init
>> +acpi_parse_gicc_affinity(struct acpi_subtable_header *header,
>> +             const unsigned long end)
>> +{
>> +    struct acpi_srat_gicc_affinity *processor_affinity;
>> +
>> +    processor_affinity = (struct acpi_srat_gicc_affinity *)header;
>> +    if (!processor_affinity)
>> +        return -EINVAL;
>> +
>> +    acpi_table_print_srat_entry(header);
>> +
>> +    /* let architecture-dependent part to do it */
>> +    acpi_numa_gicc_affinity_init(processor_affinity);
>> +
>> +    return 0;
>> +}
>> +
>>   static int __initdata parsed_numa_memblks;
>>
>>   static int __init
>> @@ -404,6 +434,9 @@ int __init acpi_numa_init(void)
>>   {
>>       int cnt = 0;
>>
>> +    if (acpi_disabled)
>> +        return -EINVAL;
>> +
>>       /*
>>        * Should not limit number with cpu num that is from NR_CPUS or nr_cpus=
>>        * SRAT cpu entries could have different order with that in MADT.
>> @@ -412,13 +445,15 @@ int __init acpi_numa_init(void)
>>
>>       /* SRAT: Static Resource Affinity Table */
>>       if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
>> -        struct acpi_subtable_proc srat_proc[2];
>> +        struct acpi_subtable_proc srat_proc[3];
>>
>>           memset(srat_proc, 0, sizeof(srat_proc));
>>           srat_proc[0].id = ACPI_SRAT_TYPE_CPU_AFFINITY;
>>           srat_proc[0].handler = acpi_parse_processor_affinity;
>>           srat_proc[1].id = ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY;
>>           srat_proc[1].handler = acpi_parse_x2apic_affinity;
>> +        srat_proc[1].id = ACPI_SRAT_TYPE_GICC_AFFINITY;
>> +        srat_proc[1].handler = acpi_parse_gicc_affinity;
>
> Should be srat_proc[2].id and srat_proc[2].handler, right?

Good catch, will send a updated version shortly.

Thanks
Hanjun

Re: [PATCH v7 15/15] acpi, numa: Enable ACPI based NUMA on ARM64

[Hanjun Guo]

On 2016/6/10 3:47, Matthias Brugger wrote:
>
>
> On 25/05/16 00:35, David Daney wrote:
>> From: Hanjun Guo <hanjun.guo@linaro.org>
>>
>> Add function needed for cpu to node mapping, and enable ACPI based
>> NUMA for ARM64 in Kconfig
>>
>> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
>> Signed-off-by: Robert Richter <rrichter@cavium.com>
>> [david.daney@cavium.com added ACPI_NUMA default to y for ARM64]
>> Signed-off-by: David Daney <david.daney@cavium.com>
>> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
>> ---
>>   drivers/acpi/Kconfig |  4 ++--
>>   drivers/acpi/numa.c  | 37 ++++++++++++++++++++++++++++++++++++-
>>   include/linux/acpi.h | 17 ++++++++++++++++-
>>   3 files changed, 54 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
>> index b7e2e77..dd76b36 100644
>> --- a/drivers/acpi/Kconfig
>> +++ b/drivers/acpi/Kconfig
>> @@ -291,8 +291,8 @@ config ACPI_THERMAL
>>   config ACPI_NUMA
>>       bool "NUMA support"
>>       depends on NUMA
>> -    depends on (X86 || IA64)
>> -    default y if IA64_GENERIC || IA64_SGI_SN2
>> +    depends on (X86 || IA64 || ARM64)
>> +    default y if IA64_GENERIC || IA64_SGI_SN2 || ARM64
>>
>>   config ACPI_CUSTOM_DSDT_FILE
>>       string "Custom DSDT Table file to include"
>> diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
>> index fad6d28..9b7ce40 100644
>> --- a/drivers/acpi/numa.c
>> +++ b/drivers/acpi/numa.c
>> @@ -170,6 +170,18 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header)
>>           }
>>           break;
>>
>> +    case ACPI_SRAT_TYPE_GICC_AFFINITY:
>> +        {
>> +            struct acpi_srat_gicc_affinity *p >> +                (struct acpi_srat_gicc_affinity *)header;
>> +            pr_debug("SRAT Processor (acpi id[0x%04x]) in proximity domain %d %s\n",
>> +                 p->acpi_processor_uid,
>> +                 p->proximity_domain,
>> +                 (p->flags & ACPI_SRAT_GICC_ENABLED) ?
>> +                 "enabled" : "disabled");
>> +        }
>> +        break;
>> +
>>       default:
>>           pr_warn("Found unsupported SRAT entry (type = 0x%x)\n",
>>               header->type);
>> @@ -360,6 +372,24 @@ acpi_parse_processor_affinity(struct acpi_subtable_header *header,
>>       return 0;
>>   }
>>
>> +static int __init
>> +acpi_parse_gicc_affinity(struct acpi_subtable_header *header,
>> +             const unsigned long end)
>> +{
>> +    struct acpi_srat_gicc_affinity *processor_affinity;
>> +
>> +    processor_affinity = (struct acpi_srat_gicc_affinity *)header;
>> +    if (!processor_affinity)
>> +        return -EINVAL;
>> +
>> +    acpi_table_print_srat_entry(header);
>> +
>> +    /* let architecture-dependent part to do it */
>> +    acpi_numa_gicc_affinity_init(processor_affinity);
>> +
>> +    return 0;
>> +}
>> +
>>   static int __initdata parsed_numa_memblks;
>>
>>   static int __init
>> @@ -404,6 +434,9 @@ int __init acpi_numa_init(void)
>>   {
>>       int cnt = 0;
>>
>> +    if (acpi_disabled)
>> +        return -EINVAL;
>> +
>>       /*
>>        * Should not limit number with cpu num that is from NR_CPUS or nr_cpus>>        * SRAT cpu entries could have different order with that in MADT.
>> @@ -412,13 +445,15 @@ int __init acpi_numa_init(void)
>>
>>       /* SRAT: Static Resource Affinity Table */
>>       if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
>> -        struct acpi_subtable_proc srat_proc[2];
>> +        struct acpi_subtable_proc srat_proc[3];
>>
>>           memset(srat_proc, 0, sizeof(srat_proc));
>>           srat_proc[0].id = ACPI_SRAT_TYPE_CPU_AFFINITY;
>>           srat_proc[0].handler = acpi_parse_processor_affinity;
>>           srat_proc[1].id = ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY;
>>           srat_proc[1].handler = acpi_parse_x2apic_affinity;
>> +        srat_proc[1].id = ACPI_SRAT_TYPE_GICC_AFFINITY;
>> +        srat_proc[1].handler = acpi_parse_gicc_affinity;
>
> Should be srat_proc[2].id and srat_proc[2].handler, right?

Good catch, will send a updated version shortly.

Thanks
Hanjun

Re: [PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[Catalin Marinas]

On Tue, May 24, 2016 at 03:35:44PM -0700, David Daney wrote:
> diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
> index aee323b..4b13ecd 100644
> --- a/arch/arm64/include/asm/acpi.h
> +++ b/arch/arm64/include/asm/acpi.h
> @@ -113,4 +113,12 @@ static inline const char *acpi_get_enable_method(int cpu)
>  pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr);
>  #endif
>  
> +#ifdef CONFIG_ACPI_NUMA
> +int arm64_acpi_numa_init(void);
> +int acpi_numa_get_nid(unsigned int cpu, u64 hwid);
> +#else
> +static inline int arm64_acpi_numa_init(void) { return -ENOSYS; }
> +static inline int acpi_numa_get_nid(unsigned int cpu, u64 hwid) { return NUMA_NO_NODE; }
> +#endif /* CONFIG_ACPI_NUMA */
> +
>  #endif /*_ASM_ACPI_H*/

Apparently this doesn't always build since asm/acpi.h is conditionally
included from linux/acpi.h only when CONFIG_ACPI is enabled. Disabling
this option on arm64 leads to:

arch/arm64/mm/numa.c: In function ‘arm64_numa_init’:
arch/arm64/mm/numa.c:395:24: error: ‘arm64_acpi_numa_init’ undeclared (first use in this function)
   if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))

I'll fix it in arch/arm64 by including asm/acpi.h directly as we do in a
couple of other files:

------------------8<------------------------------
>From 9a83bf400e0b4ef066b83eeaecdbca909b8491ea Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Mon, 15 Aug 2016 16:33:10 +0100
Subject: [PATCH] arm64: Fix NUMA build error when !CONFIG_ACPI
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Since asm/acpi.h is only included by linux/acpi.h when CONFIG_ACPI is
enabled, disabling the latter leads to the following build error on
arm64:

arch/arm64/mm/numa.c: In function ‘arm64_numa_init’:
arch/arm64/mm/numa.c:395:24: error: ‘arm64_acpi_numa_init’ undeclared (first use in this function)
   if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))

This patch include the asm/acpi.h explicitly in arch/arm64/mm/numa.c for
the arm64_acpi_numa_init() definition.

Fixes: d8b47fca8c23 ("arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT")
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/mm/numa.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index c7fe3ec70774..5bb15eab6f00 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -23,6 +23,8 @@
 #include <linux/module.h>
 #include <linux/of.h>
 
+#include <asm/acpi.h>
+
 struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
 EXPORT_SYMBOL(node_data);
 nodemask_t numa_nodes_parsed __initdata;

[PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[Catalin Marinas]

On Tue, May 24, 2016 at 03:35:44PM -0700, David Daney wrote:
> diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
> index aee323b..4b13ecd 100644
> --- a/arch/arm64/include/asm/acpi.h
> +++ b/arch/arm64/include/asm/acpi.h
> @@ -113,4 +113,12 @@ static inline const char *acpi_get_enable_method(int cpu)
>  pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr);
>  #endif
>  
> +#ifdef CONFIG_ACPI_NUMA
> +int arm64_acpi_numa_init(void);
> +int acpi_numa_get_nid(unsigned int cpu, u64 hwid);
> +#else
> +static inline int arm64_acpi_numa_init(void) { return -ENOSYS; }
> +static inline int acpi_numa_get_nid(unsigned int cpu, u64 hwid) { return NUMA_NO_NODE; }
> +#endif /* CONFIG_ACPI_NUMA */
> +
>  #endif /*_ASM_ACPI_H*/

Apparently this doesn't always build since asm/acpi.h is conditionally
included from linux/acpi.h only when CONFIG_ACPI is enabled. Disabling
this option on arm64 leads to:

arch/arm64/mm/numa.c: In function ?arm64_numa_init?:
arch/arm64/mm/numa.c:395:24: error: ?arm64_acpi_numa_init? undeclared (first use in this function)
   if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))

I'll fix it in arch/arm64 by including asm/acpi.h directly as we do in a
couple of other files:

------------------8<------------------------------
>From 9a83bf400e0b4ef066b83eeaecdbca909b8491ea Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Mon, 15 Aug 2016 16:33:10 +0100
Subject: [PATCH] arm64: Fix NUMA build error when !CONFIG_ACPI
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Since asm/acpi.h is only included by linux/acpi.h when CONFIG_ACPI is
enabled, disabling the latter leads to the following build error on
arm64:

arch/arm64/mm/numa.c: In function ?arm64_numa_init?:
arch/arm64/mm/numa.c:395:24: error: ?arm64_acpi_numa_init? undeclared (first use in this function)
   if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))

This patch include the asm/acpi.h explicitly in arch/arm64/mm/numa.c for
the arm64_acpi_numa_init() definition.

Fixes: d8b47fca8c23 ("arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT")
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/mm/numa.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index c7fe3ec70774..5bb15eab6f00 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -23,6 +23,8 @@
 #include <linux/module.h>
 #include <linux/of.h>
 
+#include <asm/acpi.h>
+
 struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
 EXPORT_SYMBOL(node_data);
 nodemask_t numa_nodes_parsed __initdata;

Re: [PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[Catalin Marinas]

On Tue, May 24, 2016 at 03:35:44PM -0700, David Daney wrote:
> diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
> index aee323b..4b13ecd 100644
> --- a/arch/arm64/include/asm/acpi.h
> +++ b/arch/arm64/include/asm/acpi.h
> @@ -113,4 +113,12 @@ static inline const char *acpi_get_enable_method(int cpu)
>  pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr);
>  #endif
>  
> +#ifdef CONFIG_ACPI_NUMA
> +int arm64_acpi_numa_init(void);
> +int acpi_numa_get_nid(unsigned int cpu, u64 hwid);
> +#else
> +static inline int arm64_acpi_numa_init(void) { return -ENOSYS; }
> +static inline int acpi_numa_get_nid(unsigned int cpu, u64 hwid) { return NUMA_NO_NODE; }
> +#endif /* CONFIG_ACPI_NUMA */
> +
>  #endif /*_ASM_ACPI_H*/

Apparently this doesn't always build since asm/acpi.h is conditionally
included from linux/acpi.h only when CONFIG_ACPI is enabled. Disabling
this option on arm64 leads to:

arch/arm64/mm/numa.c: In function ‘arm64_numa_init’:
arch/arm64/mm/numa.c:395:24: error: ‘arm64_acpi_numa_init’ undeclared (first use in this function)
   if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))

I'll fix it in arch/arm64 by including asm/acpi.h directly as we do in a
couple of other files:

------------------8<------------------------------
From 9a83bf400e0b4ef066b83eeaecdbca909b8491ea Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Mon, 15 Aug 2016 16:33:10 +0100
Subject: [PATCH] arm64: Fix NUMA build error when !CONFIG_ACPI
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Since asm/acpi.h is only included by linux/acpi.h when CONFIG_ACPI is
enabled, disabling the latter leads to the following build error on
arm64:

arch/arm64/mm/numa.c: In function ‘arm64_numa_init’:
arch/arm64/mm/numa.c:395:24: error: ‘arm64_acpi_numa_init’ undeclared (first use in this function)
   if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))

This patch include the asm/acpi.h explicitly in arch/arm64/mm/numa.c for
the arm64_acpi_numa_init() definition.

Fixes: d8b47fca8c23 ("arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT")
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/mm/numa.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index c7fe3ec70774..5bb15eab6f00 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -23,6 +23,8 @@
 #include <linux/module.h>
 #include <linux/of.h>
 
+#include <asm/acpi.h>
+
 struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
 EXPORT_SYMBOL(node_data);
 nodemask_t numa_nodes_parsed __initdata;

Re: [PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[David Daney]

On 08/15/2016 08:35 AM, Catalin Marinas wrote:
> On Tue, May 24, 2016 at 03:35:44PM -0700, David Daney wrote:
>> diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
>> index aee323b..4b13ecd 100644
>> --- a/arch/arm64/include/asm/acpi.h
>> +++ b/arch/arm64/include/asm/acpi.h
>> @@ -113,4 +113,12 @@ static inline const char *acpi_get_enable_method(int cpu)
>>   pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr);
>>   #endif
>>
>> +#ifdef CONFIG_ACPI_NUMA
>> +int arm64_acpi_numa_init(void);
>> +int acpi_numa_get_nid(unsigned int cpu, u64 hwid);
>> +#else
>> +static inline int arm64_acpi_numa_init(void) { return -ENOSYS; }
>> +static inline int acpi_numa_get_nid(unsigned int cpu, u64 hwid) { return NUMA_NO_NODE; }
>> +#endif /* CONFIG_ACPI_NUMA */
>> +
>>   #endif /*_ASM_ACPI_H*/
>
> Apparently this doesn't always build since asm/acpi.h is conditionally
> included from linux/acpi.h only when CONFIG_ACPI is enabled. Disabling
> this option on arm64 leads to:
>
> arch/arm64/mm/numa.c: In function ‘arm64_numa_init’:
> arch/arm64/mm/numa.c:395:24: error: ‘arm64_acpi_numa_init’ undeclared (first use in this function)
>     if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
>
> I'll fix it in arch/arm64 by including asm/acpi.h directly as we do in a
> couple of other files:

Sounds good.  Thanks for fixing it.

David


>
> ------------------8<------------------------------
>  From 9a83bf400e0b4ef066b83eeaecdbca909b8491ea Mon Sep 17 00:00:00 2001
> From: Catalin Marinas <catalin.marinas@arm.com>
> Date: Mon, 15 Aug 2016 16:33:10 +0100
> Subject: [PATCH] arm64: Fix NUMA build error when !CONFIG_ACPI
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
>
> Since asm/acpi.h is only included by linux/acpi.h when CONFIG_ACPI is
> enabled, disabling the latter leads to the following build error on
> arm64:
>
> arch/arm64/mm/numa.c: In function ‘arm64_numa_init’:
> arch/arm64/mm/numa.c:395:24: error: ‘arm64_acpi_numa_init’ undeclared (first use in this function)
>     if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
>
> This patch include the asm/acpi.h explicitly in arch/arm64/mm/numa.c for
> the arm64_acpi_numa_init() definition.
>
> Fixes: d8b47fca8c23 ("arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT")
> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
> ---
>   arch/arm64/mm/numa.c | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
> index c7fe3ec70774..5bb15eab6f00 100644
> --- a/arch/arm64/mm/numa.c
> +++ b/arch/arm64/mm/numa.c
> @@ -23,6 +23,8 @@
>   #include <linux/module.h>
>   #include <linux/of.h>
>
> +#include <asm/acpi.h>
> +
>   struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
>   EXPORT_SYMBOL(node_data);
>   nodemask_t numa_nodes_parsed __initdata;
>


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Re: [PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[David Daney]

On 08/15/2016 08:35 AM, Catalin Marinas wrote:
> On Tue, May 24, 2016 at 03:35:44PM -0700, David Daney wrote:
>> diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
>> index aee323b..4b13ecd 100644
>> --- a/arch/arm64/include/asm/acpi.h
>> +++ b/arch/arm64/include/asm/acpi.h
>> @@ -113,4 +113,12 @@ static inline const char *acpi_get_enable_method(int cpu)
>>   pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr);
>>   #endif
>>
>> +#ifdef CONFIG_ACPI_NUMA
>> +int arm64_acpi_numa_init(void);
>> +int acpi_numa_get_nid(unsigned int cpu, u64 hwid);
>> +#else
>> +static inline int arm64_acpi_numa_init(void) { return -ENOSYS; }
>> +static inline int acpi_numa_get_nid(unsigned int cpu, u64 hwid) { return NUMA_NO_NODE; }
>> +#endif /* CONFIG_ACPI_NUMA */
>> +
>>   #endif /*_ASM_ACPI_H*/
>
> Apparently this doesn't always build since asm/acpi.h is conditionally
> included from linux/acpi.h only when CONFIG_ACPI is enabled. Disabling
> this option on arm64 leads to:
>
> arch/arm64/mm/numa.c: In function ‘arm64_numa_init’:
> arch/arm64/mm/numa.c:395:24: error: ‘arm64_acpi_numa_init’ undeclared (first use in this function)
>     if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
>
> I'll fix it in arch/arm64 by including asm/acpi.h directly as we do in a
> couple of other files:

Sounds good.  Thanks for fixing it.

David


>
> ------------------8<------------------------------
>  From 9a83bf400e0b4ef066b83eeaecdbca909b8491ea Mon Sep 17 00:00:00 2001
> From: Catalin Marinas <catalin.marinas@arm.com>
> Date: Mon, 15 Aug 2016 16:33:10 +0100
> Subject: [PATCH] arm64: Fix NUMA build error when !CONFIG_ACPI
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
>
> Since asm/acpi.h is only included by linux/acpi.h when CONFIG_ACPI is
> enabled, disabling the latter leads to the following build error on
> arm64:
>
> arch/arm64/mm/numa.c: In function ‘arm64_numa_init’:
> arch/arm64/mm/numa.c:395:24: error: ‘arm64_acpi_numa_init’ undeclared (first use in this function)
>     if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
>
> This patch include the asm/acpi.h explicitly in arch/arm64/mm/numa.c for
> the arm64_acpi_numa_init() definition.
>
> Fixes: d8b47fca8c23 ("arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT")
> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
> ---
>   arch/arm64/mm/numa.c | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
> index c7fe3ec70774..5bb15eab6f00 100644
> --- a/arch/arm64/mm/numa.c
> +++ b/arch/arm64/mm/numa.c
> @@ -23,6 +23,8 @@
>   #include <linux/module.h>
>   #include <linux/of.h>
>
> +#include <asm/acpi.h>
> +
>   struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
>   EXPORT_SYMBOL(node_data);
>   nodemask_t numa_nodes_parsed __initdata;
>

[PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[David Daney]

On 08/15/2016 08:35 AM, Catalin Marinas wrote:
> On Tue, May 24, 2016 at 03:35:44PM -0700, David Daney wrote:
>> diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
>> index aee323b..4b13ecd 100644
>> --- a/arch/arm64/include/asm/acpi.h
>> +++ b/arch/arm64/include/asm/acpi.h
>> @@ -113,4 +113,12 @@ static inline const char *acpi_get_enable_method(int cpu)
>>   pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr);
>>   #endif
>>
>> +#ifdef CONFIG_ACPI_NUMA
>> +int arm64_acpi_numa_init(void);
>> +int acpi_numa_get_nid(unsigned int cpu, u64 hwid);
>> +#else
>> +static inline int arm64_acpi_numa_init(void) { return -ENOSYS; }
>> +static inline int acpi_numa_get_nid(unsigned int cpu, u64 hwid) { return NUMA_NO_NODE; }
>> +#endif /* CONFIG_ACPI_NUMA */
>> +
>>   #endif /*_ASM_ACPI_H*/
>
> Apparently this doesn't always build since asm/acpi.h is conditionally
> included from linux/acpi.h only when CONFIG_ACPI is enabled. Disabling
> this option on arm64 leads to:
>
> arch/arm64/mm/numa.c: In function ?arm64_numa_init?:
> arch/arm64/mm/numa.c:395:24: error: ?arm64_acpi_numa_init? undeclared (first use in this function)
>     if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
>
> I'll fix it in arch/arm64 by including asm/acpi.h directly as we do in a
> couple of other files:

Sounds good.  Thanks for fixing it.

David


>
> ------------------8<------------------------------
>  From 9a83bf400e0b4ef066b83eeaecdbca909b8491ea Mon Sep 17 00:00:00 2001
> From: Catalin Marinas <catalin.marinas@arm.com>
> Date: Mon, 15 Aug 2016 16:33:10 +0100
> Subject: [PATCH] arm64: Fix NUMA build error when !CONFIG_ACPI
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
>
> Since asm/acpi.h is only included by linux/acpi.h when CONFIG_ACPI is
> enabled, disabling the latter leads to the following build error on
> arm64:
>
> arch/arm64/mm/numa.c: In function ?arm64_numa_init?:
> arch/arm64/mm/numa.c:395:24: error: ?arm64_acpi_numa_init? undeclared (first use in this function)
>     if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
>
> This patch include the asm/acpi.h explicitly in arch/arm64/mm/numa.c for
> the arm64_acpi_numa_init() definition.
>
> Fixes: d8b47fca8c23 ("arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT")
> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
> ---
>   arch/arm64/mm/numa.c | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
> index c7fe3ec70774..5bb15eab6f00 100644
> --- a/arch/arm64/mm/numa.c
> +++ b/arch/arm64/mm/numa.c
> @@ -23,6 +23,8 @@
>   #include <linux/module.h>
>   #include <linux/of.h>
>
> +#include <asm/acpi.h>
> +
>   struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
>   EXPORT_SYMBOL(node_data);
>   nodemask_t numa_nodes_parsed __initdata;
>

Re: [PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[David Daney]

On 08/15/2016 08:35 AM, Catalin Marinas wrote:
> On Tue, May 24, 2016 at 03:35:44PM -0700, David Daney wrote:
>> diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
>> index aee323b..4b13ecd 100644
>> --- a/arch/arm64/include/asm/acpi.h
>> +++ b/arch/arm64/include/asm/acpi.h
>> @@ -113,4 +113,12 @@ static inline const char *acpi_get_enable_method(int cpu)
>>   pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr);
>>   #endif
>>
>> +#ifdef CONFIG_ACPI_NUMA
>> +int arm64_acpi_numa_init(void);
>> +int acpi_numa_get_nid(unsigned int cpu, u64 hwid);
>> +#else
>> +static inline int arm64_acpi_numa_init(void) { return -ENOSYS; }
>> +static inline int acpi_numa_get_nid(unsigned int cpu, u64 hwid) { return NUMA_NO_NODE; }
>> +#endif /* CONFIG_ACPI_NUMA */
>> +
>>   #endif /*_ASM_ACPI_H*/
>
> Apparently this doesn't always build since asm/acpi.h is conditionally
> included from linux/acpi.h only when CONFIG_ACPI is enabled. Disabling
> this option on arm64 leads to:
>
> arch/arm64/mm/numa.c: In function ‘arm64_numa_init’:
> arch/arm64/mm/numa.c:395:24: error: ‘arm64_acpi_numa_init’ undeclared (first use in this function)
>     if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
>
> I'll fix it in arch/arm64 by including asm/acpi.h directly as we do in a
> couple of other files:

Sounds good.  Thanks for fixing it.

David


>
> ------------------8<------------------------------
>  From 9a83bf400e0b4ef066b83eeaecdbca909b8491ea Mon Sep 17 00:00:00 2001
> From: Catalin Marinas <catalin.marinas@arm.com>
> Date: Mon, 15 Aug 2016 16:33:10 +0100
> Subject: [PATCH] arm64: Fix NUMA build error when !CONFIG_ACPI
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
>
> Since asm/acpi.h is only included by linux/acpi.h when CONFIG_ACPI is
> enabled, disabling the latter leads to the following build error on
> arm64:
>
> arch/arm64/mm/numa.c: In function ‘arm64_numa_init’:
> arch/arm64/mm/numa.c:395:24: error: ‘arm64_acpi_numa_init’ undeclared (first use in this function)
>     if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
>
> This patch include the asm/acpi.h explicitly in arch/arm64/mm/numa.c for
> the arm64_acpi_numa_init() definition.
>
> Fixes: d8b47fca8c23 ("arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT")
> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
> ---
>   arch/arm64/mm/numa.c | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
> index c7fe3ec70774..5bb15eab6f00 100644
> --- a/arch/arm64/mm/numa.c
> +++ b/arch/arm64/mm/numa.c
> @@ -23,6 +23,8 @@
>   #include <linux/module.h>
>   #include <linux/of.h>
>
> +#include <asm/acpi.h>
> +
>   struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
>   EXPORT_SYMBOL(node_data);
>   nodemask_t numa_nodes_parsed __initdata;
>

Re: [PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[Hanjun Guo]

On 2016/8/15 23:35, Catalin Marinas wrote:
> On Tue, May 24, 2016 at 03:35:44PM -0700, David Daney wrote:
>> diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
>> index aee323b..4b13ecd 100644
>> --- a/arch/arm64/include/asm/acpi.h
>> +++ b/arch/arm64/include/asm/acpi.h
>> @@ -113,4 +113,12 @@ static inline const char *acpi_get_enable_method(int cpu)
>>  pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr);
>>  #endif
>>
>> +#ifdef CONFIG_ACPI_NUMA
>> +int arm64_acpi_numa_init(void);
>> +int acpi_numa_get_nid(unsigned int cpu, u64 hwid);
>> +#else
>> +static inline int arm64_acpi_numa_init(void) { return -ENOSYS; }
>> +static inline int acpi_numa_get_nid(unsigned int cpu, u64 hwid) { return NUMA_NO_NODE; }
>> +#endif /* CONFIG_ACPI_NUMA */
>> +
>>  #endif /*_ASM_ACPI_H*/
>
> Apparently this doesn't always build since asm/acpi.h is conditionally
> included from linux/acpi.h only when CONFIG_ACPI is enabled. Disabling
> this option on arm64 leads to:
>
> arch/arm64/mm/numa.c: In function ‘arm64_numa_init’:
> arch/arm64/mm/numa.c:395:24: error: ‘arm64_acpi_numa_init’ undeclared (first use in this function)
>    if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
>
> I'll fix it in arch/arm64 by including asm/acpi.h directly as we do in a
> couple of other files:
>
> ------------------8<------------------------------
> From 9a83bf400e0b4ef066b83eeaecdbca909b8491ea Mon Sep 17 00:00:00 2001
> From: Catalin Marinas <catalin.marinas@arm.com>
> Date: Mon, 15 Aug 2016 16:33:10 +0100
> Subject: [PATCH] arm64: Fix NUMA build error when !CONFIG_ACPI
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
>
> Since asm/acpi.h is only included by linux/acpi.h when CONFIG_ACPI is
> enabled, disabling the latter leads to the following build error on
> arm64:
>
> arch/arm64/mm/numa.c: In function ‘arm64_numa_init’:
> arch/arm64/mm/numa.c:395:24: error: ‘arm64_acpi_numa_init’ undeclared (first use in this function)
>    if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
>
> This patch include the asm/acpi.h explicitly in arch/arm64/mm/numa.c for
> the arm64_acpi_numa_init() definition.
>
> Fixes: d8b47fca8c23 ("arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT")
> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
> ---
>  arch/arm64/mm/numa.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
> index c7fe3ec70774..5bb15eab6f00 100644
> --- a/arch/arm64/mm/numa.c
> +++ b/arch/arm64/mm/numa.c
> @@ -23,6 +23,8 @@
>  #include <linux/module.h>
>  #include <linux/of.h>
>
> +#include <asm/acpi.h>
> +
>  struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
>  EXPORT_SYMBOL(node_data);
>  nodemask_t numa_nodes_parsed __initdata;


Thanks a lot!

Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>

Hanjun

[PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[Hanjun Guo]

On 2016/8/15 23:35, Catalin Marinas wrote:
> On Tue, May 24, 2016 at 03:35:44PM -0700, David Daney wrote:
>> diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
>> index aee323b..4b13ecd 100644
>> --- a/arch/arm64/include/asm/acpi.h
>> +++ b/arch/arm64/include/asm/acpi.h
>> @@ -113,4 +113,12 @@ static inline const char *acpi_get_enable_method(int cpu)
>>  pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr);
>>  #endif
>>
>> +#ifdef CONFIG_ACPI_NUMA
>> +int arm64_acpi_numa_init(void);
>> +int acpi_numa_get_nid(unsigned int cpu, u64 hwid);
>> +#else
>> +static inline int arm64_acpi_numa_init(void) { return -ENOSYS; }
>> +static inline int acpi_numa_get_nid(unsigned int cpu, u64 hwid) { return NUMA_NO_NODE; }
>> +#endif /* CONFIG_ACPI_NUMA */
>> +
>>  #endif /*_ASM_ACPI_H*/
>
> Apparently this doesn't always build since asm/acpi.h is conditionally
> included from linux/acpi.h only when CONFIG_ACPI is enabled. Disabling
> this option on arm64 leads to:
>
> arch/arm64/mm/numa.c: In function ?arm64_numa_init?:
> arch/arm64/mm/numa.c:395:24: error: ?arm64_acpi_numa_init? undeclared (first use in this function)
>    if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
>
> I'll fix it in arch/arm64 by including asm/acpi.h directly as we do in a
> couple of other files:
>
> ------------------8<------------------------------
> From 9a83bf400e0b4ef066b83eeaecdbca909b8491ea Mon Sep 17 00:00:00 2001
> From: Catalin Marinas <catalin.marinas@arm.com>
> Date: Mon, 15 Aug 2016 16:33:10 +0100
> Subject: [PATCH] arm64: Fix NUMA build error when !CONFIG_ACPI
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
>
> Since asm/acpi.h is only included by linux/acpi.h when CONFIG_ACPI is
> enabled, disabling the latter leads to the following build error on
> arm64:
>
> arch/arm64/mm/numa.c: In function ?arm64_numa_init?:
> arch/arm64/mm/numa.c:395:24: error: ?arm64_acpi_numa_init? undeclared (first use in this function)
>    if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
>
> This patch include the asm/acpi.h explicitly in arch/arm64/mm/numa.c for
> the arm64_acpi_numa_init() definition.
>
> Fixes: d8b47fca8c23 ("arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT")
> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
> ---
>  arch/arm64/mm/numa.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
> index c7fe3ec70774..5bb15eab6f00 100644
> --- a/arch/arm64/mm/numa.c
> +++ b/arch/arm64/mm/numa.c
> @@ -23,6 +23,8 @@
>  #include <linux/module.h>
>  #include <linux/of.h>
>
> +#include <asm/acpi.h>
> +
>  struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
>  EXPORT_SYMBOL(node_data);
>  nodemask_t numa_nodes_parsed __initdata;


Thanks a lot!

Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>

Hanjun

Re: [PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[Hanjun Guo]

On 2016/8/15 23:35, Catalin Marinas wrote:
> On Tue, May 24, 2016 at 03:35:44PM -0700, David Daney wrote:
>> diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
>> index aee323b..4b13ecd 100644
>> --- a/arch/arm64/include/asm/acpi.h
>> +++ b/arch/arm64/include/asm/acpi.h
>> @@ -113,4 +113,12 @@ static inline const char *acpi_get_enable_method(int cpu)
>>  pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr);
>>  #endif
>>
>> +#ifdef CONFIG_ACPI_NUMA
>> +int arm64_acpi_numa_init(void);
>> +int acpi_numa_get_nid(unsigned int cpu, u64 hwid);
>> +#else
>> +static inline int arm64_acpi_numa_init(void) { return -ENOSYS; }
>> +static inline int acpi_numa_get_nid(unsigned int cpu, u64 hwid) { return NUMA_NO_NODE; }
>> +#endif /* CONFIG_ACPI_NUMA */
>> +
>>  #endif /*_ASM_ACPI_H*/
>
> Apparently this doesn't always build since asm/acpi.h is conditionally
> included from linux/acpi.h only when CONFIG_ACPI is enabled. Disabling
> this option on arm64 leads to:
>
> arch/arm64/mm/numa.c: In function ‘arm64_numa_init’:
> arch/arm64/mm/numa.c:395:24: error: ‘arm64_acpi_numa_init’ undeclared (first use in this function)
>    if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
>
> I'll fix it in arch/arm64 by including asm/acpi.h directly as we do in a
> couple of other files:
>
> ------------------8<------------------------------
> From 9a83bf400e0b4ef066b83eeaecdbca909b8491ea Mon Sep 17 00:00:00 2001
> From: Catalin Marinas <catalin.marinas@arm.com>
> Date: Mon, 15 Aug 2016 16:33:10 +0100
> Subject: [PATCH] arm64: Fix NUMA build error when !CONFIG_ACPI
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
>
> Since asm/acpi.h is only included by linux/acpi.h when CONFIG_ACPI is
> enabled, disabling the latter leads to the following build error on
> arm64:
>
> arch/arm64/mm/numa.c: In function ‘arm64_numa_init’:
> arch/arm64/mm/numa.c:395:24: error: ‘arm64_acpi_numa_init’ undeclared (first use in this function)
>    if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
>
> This patch include the asm/acpi.h explicitly in arch/arm64/mm/numa.c for
> the arm64_acpi_numa_init() definition.
>
> Fixes: d8b47fca8c23 ("arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT")
> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
> ---
>  arch/arm64/mm/numa.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
> index c7fe3ec70774..5bb15eab6f00 100644
> --- a/arch/arm64/mm/numa.c
> +++ b/arch/arm64/mm/numa.c
> @@ -23,6 +23,8 @@
>  #include <linux/module.h>
>  #include <linux/of.h>
>
> +#include <asm/acpi.h>
> +
>  struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
>  EXPORT_SYMBOL(node_data);
>  nodemask_t numa_nodes_parsed __initdata;


Thanks a lot!

Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>

Hanjun

Re: [Devel] [PATCH v7 14/15] arm64, acpi, numa: NUMA support based on SRAT and SLIT

[Hanjun Guo]

[-- Attachment #1: Type: text/plain, Size: 2966 bytes --]

On 2016/8/15 23:35, Catalin Marinas wrote:
> On Tue, May 24, 2016 at 03:35:44PM -0700, David Daney wrote:
>> diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
>> index aee323b..4b13ecd 100644
>> --- a/arch/arm64/include/asm/acpi.h
>> +++ b/arch/arm64/include/asm/acpi.h
>> @@ -113,4 +113,12 @@ static inline const char *acpi_get_enable_method(int cpu)
>>  pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr);
>>  #endif
>>
>> +#ifdef CONFIG_ACPI_NUMA
>> +int arm64_acpi_numa_init(void);
>> +int acpi_numa_get_nid(unsigned int cpu, u64 hwid);
>> +#else
>> +static inline int arm64_acpi_numa_init(void) { return -ENOSYS; }
>> +static inline int acpi_numa_get_nid(unsigned int cpu, u64 hwid) { return NUMA_NO_NODE; }
>> +#endif /* CONFIG_ACPI_NUMA */
>> +
>>  #endif /*_ASM_ACPI_H*/
>
> Apparently this doesn't always build since asm/acpi.h is conditionally
> included from linux/acpi.h only when CONFIG_ACPI is enabled. Disabling
> this option on arm64 leads to:
>
> arch/arm64/mm/numa.c: In function ‘arm64_numa_init’:
> arch/arm64/mm/numa.c:395:24: error: ‘arm64_acpi_numa_init’ undeclared (first use in this function)
>    if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
>
> I'll fix it in arch/arm64 by including asm/acpi.h directly as we do in a
> couple of other files:
>
> ------------------8<------------------------------
> From 9a83bf400e0b4ef066b83eeaecdbca909b8491ea Mon Sep 17 00:00:00 2001
> From: Catalin Marinas <catalin.marinas(a)arm.com>
> Date: Mon, 15 Aug 2016 16:33:10 +0100
> Subject: [PATCH] arm64: Fix NUMA build error when !CONFIG_ACPI
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
>
> Since asm/acpi.h is only included by linux/acpi.h when CONFIG_ACPI is
> enabled, disabling the latter leads to the following build error on
> arm64:
>
> arch/arm64/mm/numa.c: In function ‘arm64_numa_init’:
> arch/arm64/mm/numa.c:395:24: error: ‘arm64_acpi_numa_init’ undeclared (first use in this function)
>    if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
>
> This patch include the asm/acpi.h explicitly in arch/arm64/mm/numa.c for
> the arm64_acpi_numa_init() definition.
>
> Fixes: d8b47fca8c23 ("arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT")
> Signed-off-by: Catalin Marinas <catalin.marinas(a)arm.com>
> ---
>  arch/arm64/mm/numa.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
> index c7fe3ec70774..5bb15eab6f00 100644
> --- a/arch/arm64/mm/numa.c
> +++ b/arch/arm64/mm/numa.c
> @@ -23,6 +23,8 @@
>  #include <linux/module.h>
>  #include <linux/of.h>
>
> +#include <asm/acpi.h>
> +
>  struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
>  EXPORT_SYMBOL(node_data);
>  nodemask_t numa_nodes_parsed __initdata;


Thanks a lot!

Reviewed-by: Hanjun Guo <hanjun.guo(a)linaro.org>

Hanjun