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authorDavid Gibson <david@gibson.dropbear.id.au>2005-12-14 16:08:40 +1100
committerPaul Mackerras <paulus@samba.org>2006-01-09 15:05:47 +1100
commit14c89e7fc84ae55354b8bf12fee1b6d14f259c8a (patch)
tree83d6bbd44499d81e927bbe743f1a212ff5d30b51 /arch/powerpc/mm/slb.c
parent56c8eaee65d688b526c12dca54a30276335679e5 (diff)
downloadblackbird-op-linux-14c89e7fc84ae55354b8bf12fee1b6d14f259c8a.tar.gz
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[PATCH] powerpc: Replace VMALLOCBASE with VMALLOC_START
On ppc64, we independently define VMALLOCBASE and VMALLOC_START to be the same thing: the start of the vmalloc() area at 0xd000000000000000. VMALLOC_START is used much more widely, including in generic code, so this patch gets rid of the extraneous VMALLOCBASE. This does require moving the definitions of region IDs from page_64.h to pgtable.h, but they don't clearly belong in the former rather than the latter, anyway. While we're moving them, clean up the definitions of the REGION_IDs: - Abolish REGION_SIZE, it was only used once, to define REGION_MASK anyway - Define the specific region ids in terms of the REGION_ID() macro. - Define KERNEL_REGION_ID in terms of PAGE_OFFSET rather than KERNELBASE. It amounts to the same thing, but conceptually this is about the region of the linear mapping (which starts at PAGE_OFFSET) rather than of the kernel text itself (which is at KERNELBASE). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/mm/slb.c')
-rw-r--r--arch/powerpc/mm/slb.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c
index cc22570856af..ffc8ed4de62d 100644
--- a/arch/powerpc/mm/slb.c
+++ b/arch/powerpc/mm/slb.c
@@ -87,8 +87,8 @@ static void slb_flush_and_rebolt(void)
/* Slot 2 - kernel stack */
"slbmte %2,%3\n"
"isync"
- :: "r"(mk_vsid_data(VMALLOCBASE, vflags)),
- "r"(mk_esid_data(VMALLOCBASE, 1)),
+ :: "r"(mk_vsid_data(VMALLOC_START, vflags)),
+ "r"(mk_esid_data(VMALLOC_START, 1)),
"r"(mk_vsid_data(ksp_esid_data, lflags)),
"r"(ksp_esid_data)
: "memory");
@@ -216,7 +216,7 @@ void slb_initialize(void)
create_slbe(PAGE_OFFSET, lflags, 0);
/* VMALLOC space has 4K pages always for now */
- create_slbe(VMALLOCBASE, vflags, 1);
+ create_slbe(VMALLOC_START, vflags, 1);
/* We don't bolt the stack for the time being - we're in boot,
* so the stack is in the bolted segment. By the time it goes
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