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| author | David Gibson <david@gibson.dropbear.id.au> | 2005-06-21 17:15:31 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-21 18:46:26 -0700 |
| commit | 20cee16ced631f70a62c97bdebae08a1c9470448 (patch) | |
| tree | f980db4e2b19dfcd4413e6cba4f667eb1d8c79cd /include/asm-ppc64/processor.h | |
| parent | 6879dc137ea4efad65cab8bf8a7c0b742bcf92cc (diff) | |
| download | blackbird-op-linux-20cee16ced631f70a62c97bdebae08a1c9470448.tar.gz blackbird-op-linux-20cee16ced631f70a62c97bdebae08a1c9470448.zip | |
[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 'include/asm-ppc64/processor.h')
| -rw-r--r-- | include/asm-ppc64/processor.h | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/include/asm-ppc64/processor.h b/include/asm-ppc64/processor.h index 809c634ba1df..3084099086a8 100644 --- a/include/asm-ppc64/processor.h +++ b/include/asm-ppc64/processor.h @@ -430,16 +430,6 @@ struct thread_struct { } /* - * Note: the vm_start and vm_end fields here should *not* - * be in kernel space. (Could vm_end == vm_start perhaps?) - */ -#define IOREMAP_MMAP { &ioremap_mm, 0, 0x1000, NULL, \ - PAGE_SHARED, VM_READ | VM_WRITE | VM_EXEC, \ - 1, NULL, NULL } - -extern struct mm_struct ioremap_mm; - -/* * Return saved PC of a blocked thread. For now, this is the "user" PC */ #define thread_saved_pc(tsk) \ |
