linux-kernel - [PATCH 24/25] x86: Put 64 bit numa node memmap above 16M

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Message-Id: <1277227614-11581-25-git-send-email-yinghai@kernel.org>
Date:	Tue, 22 Jun 2010 10:26:53 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Miller <davem@...emloft.net>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Johannes Weiner <hannes@...xchg.org>,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	Yinghai Lu <yinghai@...nel.org>
Subject: [PATCH 24/25] x86: Put 64 bit numa node memmap above 16M

Do not use 0x8000 hard code value anymore.

Signed-off-by: Yinghai Lu <yinghai@...nel.org>
---
 arch/x86/mm/numa_64.c |    2 +-
 arch/x86/mm/srat_64.c |    4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 92c01a5..93a1e07 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -85,7 +85,7 @@ static int __init allocate_cachealigned_memnodemap(void)
 	if (memnodemapsize <= ARRAY_SIZE(memnode.embedded_map))
 		return 0;
 
-	addr = 0x8000;
+	addr = __pa(MAX_DMA_ADDRESS);
 	nodemap_size = roundup(sizeof(s16) * memnodemapsize, L1_CACHE_BYTES);
 	nodemap_addr = lmb_find_in_range(addr, max_pfn<<PAGE_SHIFT,
 				      nodemap_size, L1_CACHE_BYTES);
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index 8f82c80..1f9b7b7 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -99,8 +99,8 @@ void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
 	unsigned long phys;
 
 	length = slit->header.length;
-	phys = lmb_find_in_range(0, max_pfn_mapped<<PAGE_SHIFT, length,
-		 PAGE_SIZE);
+	phys = lmb_find_in_range(__pa(MAX_DMA_ADDRESS), max_pfn_mapped<<PAGE_SHIFT,
+				 length, PAGE_SIZE);
 
 	if (phys == (unsigned long)LMB_ERROR)
 		panic(" Can not save slit!\n");
-- 
1.6.4.2

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