diff options
| author | Kefeng Wang <wangkefeng.wang@huawei.com> | 2022-01-20 05:07:45 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-20 09:52:52 +0300 |
| commit | 1ca3fb3abd2b615c4b61728de545760a6e2c2d8b (patch) | |
| tree | 786e58bc6542748f23b46062bba2c76a2a33dbd3 /arch/x86 | |
| parent | 7ecd19cfdfcbb625cc059dfa5b267d2436732c1c (diff) | |
| download | linux-1ca3fb3abd2b615c4b61728de545760a6e2c2d8b.tar.xz | |
mm: percpu: add pcpu_fc_cpu_to_node_fn_t typedef
Add pcpu_fc_cpu_to_node_fn_t and pass it into pcpu_fc_alloc_fn_t, pcpu
first chunk allocation will call it to alloc memblock on the
corresponding node by it, this is prepare for the next patch.
Link: https://lkml.kernel.org/r/20211216112359.103822-3-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/setup_percpu.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c index 7b65275544b2..1d41f4844149 100644 --- a/arch/x86/kernel/setup_percpu.c +++ b/arch/x86/kernel/setup_percpu.c @@ -97,12 +97,12 @@ static bool __init pcpu_need_numa(void) * RETURNS: * Pointer to the allocated area on success, NULL on failure. */ -static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size, - unsigned long align) +static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size, unsigned long align, + pcpu_fc_cpu_to_node_fn_t cpu_to_nd_fn) { const unsigned long goal = __pa(MAX_DMA_ADDRESS); #ifdef CONFIG_NUMA - int node = early_cpu_to_node(cpu); + int node = cpu_to_nd_fn(cpu); void *ptr; if (!node_online(node) || !NODE_DATA(node)) { @@ -128,9 +128,10 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size, /* * Helpers for first chunk memory allocation */ -static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size, size_t align) +static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size, size_t align, + pcpu_fc_cpu_to_node_fn_t cpu_to_nd_fn) { - return pcpu_alloc_bootmem(cpu, size, align); + return pcpu_alloc_bootmem(cpu, size, align, cpu_to_nd_fn); } static void __init pcpu_fc_free(void *ptr, size_t size) @@ -150,6 +151,11 @@ static int __init pcpu_cpu_distance(unsigned int from, unsigned int to) #endif } +static int __init pcpu_cpu_to_node(int cpu) +{ + return early_cpu_to_node(cpu); +} + static void __init pcpup_populate_pte(unsigned long addr) { populate_extra_pte(addr); @@ -205,6 +211,7 @@ void __init setup_per_cpu_areas(void) rc = pcpu_embed_first_chunk(PERCPU_FIRST_CHUNK_RESERVE, dyn_size, atom_size, pcpu_cpu_distance, + pcpu_cpu_to_node, pcpu_fc_alloc, pcpu_fc_free); if (rc < 0) pr_warn("%s allocator failed (%d), falling back to page size\n", @@ -212,6 +219,7 @@ void __init setup_per_cpu_areas(void) } if (rc < 0) rc = pcpu_page_first_chunk(PERCPU_FIRST_CHUNK_RESERVE, + pcpu_cpu_to_node, pcpu_fc_alloc, pcpu_fc_free, pcpup_populate_pte); if (rc < 0) |