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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2005-11-06 19:06:55 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-06 19:56:47 -0500
commit3c726f8dee6f55e96475574e9f645327e461884c (patch)
treef67c381e8f57959aa4a94bda4c68e24253cd8171 /arch/ppc64/kernel/pacaData.c
parentf912696ab330bf539231d1f8032320f2a08b850f (diff)
[PATCH] ppc64: support 64k pages
Adds a new CONFIG_PPC_64K_PAGES which, when enabled, changes the kernel base page size to 64K. The resulting kernel still boots on any hardware. On current machines with 4K pages support only, the kernel will maintain 16 "subpages" for each 64K page transparently. Note that while real 64K capable HW has been tested, the current patch will not enable it yet as such hardware is not released yet, and I'm still verifying with the firmware architects the proper to get the information from the newer hypervisors. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/ppc64/kernel/pacaData.c')
-rw-r--r--arch/ppc64/kernel/pacaData.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/ppc64/kernel/pacaData.c b/arch/ppc64/kernel/pacaData.c
index 5e27e5a6a35d..3133c72b28ec 100644
--- a/arch/ppc64/kernel/pacaData.c
+++ b/arch/ppc64/kernel/pacaData.c
@@ -23,7 +23,7 @@
23static union { 23static union {
24 struct systemcfg data; 24 struct systemcfg data;
25 u8 page[PAGE_SIZE]; 25 u8 page[PAGE_SIZE];
26} systemcfg_store __page_aligned; 26} systemcfg_store __attribute__((__section__(".data.page.aligned")));
27struct systemcfg *systemcfg = &systemcfg_store.data; 27struct systemcfg *systemcfg = &systemcfg_store.data;
28EXPORT_SYMBOL(systemcfg); 28EXPORT_SYMBOL(systemcfg);
29 29