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authorDavid Gibson <david@gibson.dropbear.id.au>2005-06-21 17:15:31 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-21 18:46:26 -0700
commit20cee16ced631f70a62c97bdebae08a1c9470448 (patch)
treef980db4e2b19dfcd4413e6cba4f667eb1d8c79cd /arch/ppc64/kernel/head.S
parent6879dc137ea4efad65cab8bf8a7c0b742bcf92cc (diff)
downloadop-kernel-dev-20cee16ced631f70a62c97bdebae08a1c9470448.zip
op-kernel-dev-20cee16ced631f70a62c97bdebae08a1c9470448.tar.gz
[PATCH] ppc64: Abolish ioremap_mm
Currently ppc64 has two mm_structs for the kernel, init_mm and also ioremap_mm. The latter really isn't necessary: this patch abolishes it, instead restricting vmallocs to the lower 1TB of the init_mm's range and placing io mappings in the upper 1TB. This simplifies the code in a number of places and eliminates an unecessary set of pagetables. It also tweaks the unmap/free path a little, allowing us to remove the unmap_im_area() set of page table walkers, replacing them with unmap_vm_area(). Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/ppc64/kernel/head.S')
-rw-r--r--arch/ppc64/kernel/head.S4
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/ppc64/kernel/head.S b/arch/ppc64/kernel/head.S
index 346dbf6..02c8f4e 100644
--- a/arch/ppc64/kernel/head.S
+++ b/arch/ppc64/kernel/head.S
@@ -2121,10 +2121,6 @@ empty_zero_page:
swapper_pg_dir:
.space 4096
- .globl ioremap_dir
-ioremap_dir:
- .space 4096
-
#ifdef CONFIG_SMP
/* 1 page segment table per cpu (max 48, cpu0 allocated at STAB0_PHYS_ADDR) */
.globl stab_array
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