• David Gibson's avatar
    [PATCH] powerpc: Replace VMALLOCBASE with VMALLOC_START · 14c89e7f
    David Gibson authored
    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: default avatarDavid Gibson <david@gibson.dropbear.id.au>
    Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
    14c89e7f
pgtable.h 16.7 KB