From 20cee16ced631f70a62c97bdebae08a1c9470448 Mon Sep 17 00:00:00 2001 From: David Gibson Date: Tue, 21 Jun 2005 17:15:31 -0700 Subject: [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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc64/mm/hash_utils.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'arch/ppc64/mm/hash_utils.c') diff --git a/arch/ppc64/mm/hash_utils.c b/arch/ppc64/mm/hash_utils.c index 0a0f97008d0..87d0525f56f 100644 --- a/arch/ppc64/mm/hash_utils.c +++ b/arch/ppc64/mm/hash_utils.c @@ -310,10 +310,6 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap) vsid = get_vsid(mm->context.id, ea); break; - case IO_REGION_ID: - mm = &ioremap_mm; - vsid = get_kernel_vsid(ea); - break; case VMALLOC_REGION_ID: mm = &init_mm; vsid = get_kernel_vsid(ea); -- cgit v1.2.3