[PATCH v2 17/20] x86, mm, numa: Add early_initmem_init() stub

Yinghai Lu
2013-03-10T06:47:55Z

early_initmem_init() call early_x86_numa_init() to parse numa info early.

Later will call init_mem_mapping for nodes in it.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Jacob Shin <jacob.shin@amd.com>
---
arch/x86/include/asm/page_types.h | 1 +
arch/x86/kernel/setup.c | 1 +
arch/x86/mm/init.c | 6 ++++++
arch/x86/mm/numa.c | 7 +++++--
4 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/page_types.h b/arch/x86/include/asm/page_types.h
index b012b82..d04dd8c 100644
--- a/arch/x86/include/asm/page_types.h
+++ b/arch/x86/include/asm/page_types.h
@@ -55,6 +55,7 @@ bool pfn_range_is_mapped(unsigned long start_pfn, unsigned long end_pfn);
extern unsigned long init_memory_mapping(unsigned long start,
unsigned long end);

+void early_initmem_init(void);
extern void initmem_init(void);

#endif /* !__ASSEMBLY__ */
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index b067663..626bc9f 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1135,6 +1135,7 @@ void __init setup_arch(char **cmdline_p)

early_acpi_boot_init();

+ early_initmem_init();
initmem_init();
memblock_find_dma_reserve();

diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index abcc241..28b294f 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -450,6 +450,12 @@ void __init init_mem_mapping(void)
early_memtest(0, max_pfn_mapped << PAGE_SHIFT);
}

+#ifndef CONFIG_NUMA
+void __init early_initmem_init(void)
+{
+}
+#endif
+
/*
* devmem_is_allowed() checks to see if /dev/mem access to a certain address
* is valid. The argument is a physical page number.
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 182e085..c2d4653 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -668,13 +668,16 @@ static void __init early_x86_numa_init(void)
numa_init(dummy_numa_init);
}

+void __init early_initmem_init(void)
+{
+ early_x86_numa_init();
+}
+
void __init x86_numa_init(void)
{
int i, nid;
struct numa_meminfo *mi = &numa_meminfo;

- early_x86_numa_init();
-
#ifdef CONFIG_ACPI_NUMA
if (srat_used)
x86_acpi_numa_init_slit();
--
1.7.10.4