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authorKefeng Wang <wangkefeng.wang@huawei.com>2022-01-19 18:07:45 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2022-01-20 08:52:52 +0200
commit1ca3fb3abd2b615c4b61728de545760a6e2c2d8b (patch)
tree786e58bc6542748f23b46062bba2c76a2a33dbd3 /arch/sparc
parent7ecd19cfdfcbb625cc059dfa5b267d2436732c1c (diff)
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/sparc')
-rw-r--r--arch/sparc/kernel/smp_64.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index b98a7bbe6728..14d719aa318d 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1539,12 +1539,12 @@ void smp_send_stop(void)
* RETURNS:
* Pointer to the allocated area on success, NULL on failure.
*/
-static void * __init pcpu_alloc_bootmem(unsigned int cpu, size_t size,
- size_t align)
+static void * __init pcpu_alloc_bootmem(unsigned int cpu, size_t size, size_t 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 = cpu_to_node(cpu);
+ int node = cpu_to_nd_fn(cpu);
void *ptr;
if (!node_online(node) || !NODE_DATA(node)) {
@@ -1578,6 +1578,11 @@ static int __init pcpu_cpu_distance(unsigned int from, unsigned int to)
return REMOTE_DISTANCE;
}
+static int __init pcpu_cpu_to_node(int cpu)
+{
+ return cpu_to_node(cpu);
+}
+
static void __init pcpu_populate_pte(unsigned long addr)
{
pgd_t *pgd = pgd_offset_k(addr);
@@ -1641,6 +1646,7 @@ void __init setup_per_cpu_areas(void)
rc = pcpu_embed_first_chunk(PERCPU_MODULE_RESERVE,
PERCPU_DYNAMIC_RESERVE, 4 << 20,
pcpu_cpu_distance,
+ pcpu_cpu_to_node,
pcpu_alloc_bootmem,
pcpu_free_bootmem);
if (rc)
@@ -1650,6 +1656,7 @@ void __init setup_per_cpu_areas(void)
}
if (rc < 0)
rc = pcpu_page_first_chunk(PERCPU_MODULE_RESERVE,
+ pcpu_cpu_to_node,
pcpu_alloc_bootmem,
pcpu_free_bootmem,
pcpu_populate_pte);