linux-kernel - [PATCH 13/14] x86, mm: Parse numa info early

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Message-Id: <1362718720-27048-14-git-send-email-yinghai@kernel.org>
Date:	Thu,  7 Mar 2013 20:58:39 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Renninger <trenn@...e.de>,
	Tang Chen <tangchen@...fujitsu.com>
Cc:	linux-kernel@...r.kernel.org, Yinghai Lu <yinghai@...nel.org>,
	Pekka Enberg <penberg@...nel.org>,
	Jacob Shin <jacob.shin@....com>
Subject: [PATCH 13/14] x86, mm: Parse numa info early

Parse numa info at first and store info into numa_meminfo.

call early_initmem_init before init_memory_mapping(), will
have numa info ready at first, and will still keep numaq, acpi_numa,
amd_numa, dummy fall back sequence.

SLIT and numa emulation handling are still left in initmem_init().

Signed-off-by: Yinghai Lu <yinghai@...nel.org>
Cc: Pekka Enberg <penberg@...nel.org>
Cc: Jacob Shin <jacob.shin@....com>
---
 arch/x86/kernel/setup.c |   24 ++++++++++--------------
 1 file changed, 10 insertions(+), 14 deletions(-)

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index c4f1c63..29a6b94 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1096,13 +1096,21 @@ void __init setup_arch(char **cmdline_p)
 	trim_platform_memory_ranges();
 	trim_low_memory_range();
 
+	/*
+	 * Parse the ACPI tables for possible boot-time SMP configuration.
+	 */
+	acpi_initrd_override_copy();
+	acpi_boot_table_init();
+	early_acpi_boot_init();
+	early_initmem_init();
 	init_mem_mapping();
-
+	memblock.current_limit = get_max_mapped();
 	early_trap_pf_init();
 
+	reserve_initrd();
+
 	setup_real_mode();
 
-	memblock.current_limit = get_max_mapped();
 	dma_contiguous_reserve(0);
 
 	/*
@@ -1116,24 +1124,12 @@ void __init setup_arch(char **cmdline_p)
 	/* Allocate bigger log buffer */
 	setup_log_buf(1);
 
-	reserve_initrd();
-
-	acpi_initrd_override_copy();
-
 	reserve_crashkernel();
 
 	vsmp_init();
 
 	io_delay_init();
 
-	/*
-	 * Parse the ACPI tables for possible boot-time SMP configuration.
-	 */
-	acpi_boot_table_init();
-
-	early_acpi_boot_init();
-
-	early_initmem_init();
 	initmem_init();
 	memblock_find_dma_reserve();
 
-- 
1.7.10.4

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