* + x86-numa_emu-split-__apicid_to_node-update-to-a-helper-function.patch added to mm-unstable branch
@ 2024-08-03 18:42 Andrew Morton
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2024-08-03 18:42 UTC (permalink / raw)
To: mm-commits, ziy, will, tsbogend, tglx, samuel.holland, robh,
rafael, palmer, mpe, mingo, Jonathan.Cameron, jiaxun.yang, hca,
gregkh, gor, glaubitz, david, dave, davem, dave.hansen,
dan.j.williams, corbet, christophe.leroy, chenhuacai,
catalin.marinas, bp, arnd, andreas, agordeev, rppt, akpm
The patch titled
Subject: x86/numa_emu: split __apicid_to_node update to a helper function
has been added to the -mm mm-unstable branch. Its filename is
x86-numa_emu-split-__apicid_to_node-update-to-a-helper-function.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/x86-numa_emu-split-__apicid_to_node-update-to-a-helper-function.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: "Mike Rapoport (Microsoft)" <rppt@kernel.org>
Subject: x86/numa_emu: split __apicid_to_node update to a helper function
Date: Thu, 1 Aug 2024 09:08:14 +0300
This is required to make numa emulation code architecture independent so
that it can be moved to generic code in following commits.
Link: https://lkml.kernel.org/r/20240801060826.559858-15-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Tested-by: Zi Yan <ziy@nvidia.com> [x86_64 and arm64]
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: David S. Miller <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Rob Herring (Arm) <robh@kernel.org>
Cc: Samuel Holland <samuel.holland@sifive.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
arch/x86/include/asm/numa.h | 2 ++
arch/x86/mm/numa.c | 22 ++++++++++++++++++++++
arch/x86/mm/numa_emulation.c | 14 +-------------
3 files changed, 25 insertions(+), 13 deletions(-)
--- a/arch/x86/include/asm/numa.h~x86-numa_emu-split-__apicid_to_node-update-to-a-helper-function
+++ a/arch/x86/include/asm/numa.h
@@ -72,6 +72,8 @@ void debug_cpumask_set_cpu(int cpu, int
#ifdef CONFIG_NUMA_EMU
int numa_emu_cmdline(char *str);
+void __init numa_emu_update_cpu_to_node(int *emu_nid_to_phys,
+ unsigned int nr_emu_nids);
#else /* CONFIG_NUMA_EMU */
static inline int numa_emu_cmdline(char *str)
{
--- a/arch/x86/mm/numa.c~x86-numa_emu-split-__apicid_to_node-update-to-a-helper-function
+++ a/arch/x86/mm/numa.c
@@ -848,6 +848,28 @@ EXPORT_SYMBOL(cpumask_of_node);
#endif /* !CONFIG_DEBUG_PER_CPU_MAPS */
+#ifdef CONFIG_NUMA_EMU
+void __init numa_emu_update_cpu_to_node(int *emu_nid_to_phys,
+ unsigned int nr_emu_nids)
+{
+ int i, j;
+
+ /*
+ * Transform __apicid_to_node table to use emulated nids by
+ * reverse-mapping phys_nid. The maps should always exist but fall
+ * back to zero just in case.
+ */
+ for (i = 0; i < ARRAY_SIZE(__apicid_to_node); i++) {
+ if (__apicid_to_node[i] == NUMA_NO_NODE)
+ continue;
+ for (j = 0; j < nr_emu_nids; j++)
+ if (__apicid_to_node[i] == emu_nid_to_phys[j])
+ break;
+ __apicid_to_node[i] = j < nr_emu_nids ? j : 0;
+ }
+}
+#endif /* CONFIG_NUMA_EMU */
+
#ifdef CONFIG_NUMA_KEEP_MEMINFO
static int meminfo_to_nid(struct numa_meminfo *mi, u64 start)
{
--- a/arch/x86/mm/numa_emulation.c~x86-numa_emu-split-__apicid_to_node-update-to-a-helper-function
+++ a/arch/x86/mm/numa_emulation.c
@@ -476,19 +476,7 @@ void __init numa_emulation(struct numa_m
ei.blk[i].nid != NUMA_NO_NODE)
node_set(ei.blk[i].nid, numa_nodes_parsed);
- /*
- * Transform __apicid_to_node table to use emulated nids by
- * reverse-mapping phys_nid. The maps should always exist but fall
- * back to zero just in case.
- */
- for (i = 0; i < ARRAY_SIZE(__apicid_to_node); i++) {
- if (__apicid_to_node[i] == NUMA_NO_NODE)
- continue;
- for (j = 0; j < ARRAY_SIZE(emu_nid_to_phys); j++)
- if (__apicid_to_node[i] == emu_nid_to_phys[j])
- break;
- __apicid_to_node[i] = j < ARRAY_SIZE(emu_nid_to_phys) ? j : 0;
- }
+ numa_emu_update_cpu_to_node(emu_nid_to_phys, ARRAY_SIZE(emu_nid_to_phys));
/* make sure all emulated nodes are mapped to a physical node */
for (i = 0; i < ARRAY_SIZE(emu_nid_to_phys); i++)
_
Patches currently in -mm which might be from rppt@kernel.org are
mm-move-kernel-numac-to-mm.patch
mips-sgi-ip27-make-node_data-the-same-as-on-all-other-architectures.patch
mips-sgi-ip27-ensure-node_possible_map-only-contains-valid-nodes.patch
mips-sgi-ip27-drop-have_arch_nodedata_extension.patch
mips-loongson64-rename-__node_data-to-node_data.patch
mips-loongson64-drop-have_arch_nodedata_extension.patch
mm-drop-config_have_arch_nodedata_extension.patch
arch-mm-move-definition-of-node_data-to-generic-code.patch
arch-mm-pull-out-allocation-of-node_data-to-generic-code.patch
x86-numa-simplify-numa_distance-allocation.patch
x86-numa-use-get_pfn_range_for_nid-to-verify-that-node-spans-memory.patch
x86-numa-move-fake_node_-defines-to-numa_emu.patch
x86-numa_emu-simplify-allocation-of-phys_dist.patch
x86-numa_emu-split-__apicid_to_node-update-to-a-helper-function.patch
x86-numa_emu-use-a-helper-function-to-get-max_dma32_pfn.patch
x86-numa-numa_addremove_cpu-make-cpu-parameter-unsigned.patch
mm-introduce-numa_memblks.patch
mm-move-numa_distance-and-related-code-from-x86-to-numa_memblks.patch
mm-introduce-numa_emulation.patch
mm-numa_memblks-introduce-numa_memblks_init.patch
mm-numa_memblks-make-several-functions-and-variables-static.patch
mm-numa_memblks-use-memblock_startend_of_dram-when-sanitizing-meminfo.patch
of-numa-return-einval-when-no-numa-node-id-is-found.patch
arch_numa-switch-over-to-numa_memblks.patch
mm-make-range-to-target_node-lookup-facility-a-part-of-numa_memblks.patch
docs-move-numa=fake-description-to-kernel-parameterstxt.patch
^ permalink raw reply [flat|nested] 2+ messages in thread
* + x86-numa_emu-split-__apicid_to_node-update-to-a-helper-function.patch added to mm-unstable branch
@ 2024-08-07 20:59 Andrew Morton
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2024-08-07 20:59 UTC (permalink / raw)
To: mm-commits, ziy, will, tsbogend, tglx, samuel.holland, robh,
rafael, palmer, mpe, mingo, Jonathan.Cameron, jiaxun.yang, hca,
gregkh, gor, glaubitz, david, dave, davem, dave.hansen,
dan.j.williams, corbet, christophe.leroy, chenhuacai,
catalin.marinas, bp, arnd, andreas, agordeev, rppt, akpm
The patch titled
Subject: x86/numa_emu: split __apicid_to_node update to a helper function
has been added to the -mm mm-unstable branch. Its filename is
x86-numa_emu-split-__apicid_to_node-update-to-a-helper-function.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/x86-numa_emu-split-__apicid_to_node-update-to-a-helper-function.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: "Mike Rapoport (Microsoft)" <rppt@kernel.org>
Subject: x86/numa_emu: split __apicid_to_node update to a helper function
Date: Wed, 7 Aug 2024 09:40:58 +0300
This is required to make numa emulation code architecture independent so
that it can be moved to generic code in following commits.
Link: https://lkml.kernel.org/r/20240807064110.1003856-15-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Tested-by: Zi Yan <ziy@nvidia.com> # for x86_64 and arm64
Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> [arm64 + CXL via QEMU]
Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: David S. Miller <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Rob Herring (Arm) <robh@kernel.org>
Cc: Samuel Holland <samuel.holland@sifive.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
arch/x86/include/asm/numa.h | 2 ++
arch/x86/mm/numa.c | 22 ++++++++++++++++++++++
arch/x86/mm/numa_emulation.c | 14 +-------------
3 files changed, 25 insertions(+), 13 deletions(-)
--- a/arch/x86/include/asm/numa.h~x86-numa_emu-split-__apicid_to_node-update-to-a-helper-function
+++ a/arch/x86/include/asm/numa.h
@@ -72,6 +72,8 @@ void debug_cpumask_set_cpu(int cpu, int
#ifdef CONFIG_NUMA_EMU
int numa_emu_cmdline(char *str);
+void __init numa_emu_update_cpu_to_node(int *emu_nid_to_phys,
+ unsigned int nr_emu_nids);
#else /* CONFIG_NUMA_EMU */
static inline int numa_emu_cmdline(char *str)
{
--- a/arch/x86/mm/numa.c~x86-numa_emu-split-__apicid_to_node-update-to-a-helper-function
+++ a/arch/x86/mm/numa.c
@@ -852,6 +852,28 @@ EXPORT_SYMBOL(cpumask_of_node);
#endif /* !CONFIG_DEBUG_PER_CPU_MAPS */
+#ifdef CONFIG_NUMA_EMU
+void __init numa_emu_update_cpu_to_node(int *emu_nid_to_phys,
+ unsigned int nr_emu_nids)
+{
+ int i, j;
+
+ /*
+ * Transform __apicid_to_node table to use emulated nids by
+ * reverse-mapping phys_nid. The maps should always exist but fall
+ * back to zero just in case.
+ */
+ for (i = 0; i < ARRAY_SIZE(__apicid_to_node); i++) {
+ if (__apicid_to_node[i] == NUMA_NO_NODE)
+ continue;
+ for (j = 0; j < nr_emu_nids; j++)
+ if (__apicid_to_node[i] == emu_nid_to_phys[j])
+ break;
+ __apicid_to_node[i] = j < nr_emu_nids ? j : 0;
+ }
+}
+#endif /* CONFIG_NUMA_EMU */
+
#ifdef CONFIG_NUMA_KEEP_MEMINFO
static int meminfo_to_nid(struct numa_meminfo *mi, u64 start)
{
--- a/arch/x86/mm/numa_emulation.c~x86-numa_emu-split-__apicid_to_node-update-to-a-helper-function
+++ a/arch/x86/mm/numa_emulation.c
@@ -476,19 +476,7 @@ void __init numa_emulation(struct numa_m
ei.blk[i].nid != NUMA_NO_NODE)
node_set(ei.blk[i].nid, numa_nodes_parsed);
- /*
- * Transform __apicid_to_node table to use emulated nids by
- * reverse-mapping phys_nid. The maps should always exist but fall
- * back to zero just in case.
- */
- for (i = 0; i < ARRAY_SIZE(__apicid_to_node); i++) {
- if (__apicid_to_node[i] == NUMA_NO_NODE)
- continue;
- for (j = 0; j < ARRAY_SIZE(emu_nid_to_phys); j++)
- if (__apicid_to_node[i] == emu_nid_to_phys[j])
- break;
- __apicid_to_node[i] = j < ARRAY_SIZE(emu_nid_to_phys) ? j : 0;
- }
+ numa_emu_update_cpu_to_node(emu_nid_to_phys, ARRAY_SIZE(emu_nid_to_phys));
/* make sure all emulated nodes are mapped to a physical node */
for (i = 0; i < ARRAY_SIZE(emu_nid_to_phys); i++)
_
Patches currently in -mm which might be from rppt@kernel.org are
mm-move-kernel-numac-to-mm.patch
mips-sgi-ip27-make-node_data-the-same-as-on-all-other-architectures.patch
mips-sgi-ip27-ensure-node_possible_map-only-contains-valid-nodes.patch
mips-sgi-ip27-drop-have_arch_nodedata_extension.patch
mips-loongson64-rename-__node_data-to-node_data.patch
mips-loongson64-drop-have_arch_nodedata_extension.patch
arch-mm-move-definition-of-node_data-to-generic-code.patch
mm-drop-config_have_arch_nodedata_extension.patch
arch-mm-pull-out-allocation-of-node_data-to-generic-code.patch
x86-numa-simplify-numa_distance-allocation.patch
x86-numa-use-get_pfn_range_for_nid-to-verify-that-node-spans-memory.patch
x86-numa-move-fake_node_-defines-to-numa_emu.patch
x86-numa_emu-simplify-allocation-of-phys_dist.patch
x86-numa_emu-split-__apicid_to_node-update-to-a-helper-function.patch
x86-numa_emu-use-a-helper-function-to-get-max_dma32_pfn.patch
x86-numa-numa_addremove_cpu-make-cpu-parameter-unsigned.patch
mm-introduce-numa_memblks.patch
mm-move-numa_distance-and-related-code-from-x86-to-numa_memblks.patch
mm-introduce-numa_emulation.patch
mm-numa_memblks-introduce-numa_memblks_init.patch
mm-numa_memblks-make-several-functions-and-variables-static.patch
mm-numa_memblks-use-memblock_startend_of_dram-when-sanitizing-meminfo.patch
of-numa-return-einval-when-no-numa-node-id-is-found.patch
arch_numa-switch-over-to-numa_memblks.patch
arch_numa-switch-over-to-numa_memblks-fix.patch
mm-make-range-to-target_node-lookup-facility-a-part-of-numa_memblks.patch
docs-move-numa=fake-description-to-kernel-parameterstxt.patch
^ permalink raw reply [flat|nested] 2+ messages in thread
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2024-08-07 20:59 + x86-numa_emu-split-__apicid_to_node-update-to-a-helper-function.patch added to mm-unstable branch Andrew Morton
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2024-08-03 18:42 Andrew Morton
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