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authorMatthew Wilcox <matthew@wil.cx>2006-10-13 12:32:50 -0600
committerKyle McMartin <kyle@ubuntu.com>2006-12-08 00:33:54 -0500
commit58554927f85616c374795fbddcf0607a3faa7c46 (patch)
tree9def4f84ccae8753b07a252d5f4e7d139c4685b9
parentc99767974ebd2a719d849fdeaaa1674456f5283f (diff)
downloadlinux-2.6.34-ux500-58554927f85616c374795fbddcf0607a3faa7c46.tar.gz
[PARISC] Delete arch/parisc/mm/kmap.c again
I deleted this file from 2.4 5 years ago. Unfortunately, that change never got merged to Linus and so when we switched to 2.5 it came back and nobody noticed. It's never been built in 2.5/2.6 as it was never in the Makefile. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
-rw-r--r--arch/parisc/mm/kmap.c166
1 files changed, 0 insertions, 166 deletions
diff --git a/arch/parisc/mm/kmap.c b/arch/parisc/mm/kmap.c
deleted file mode 100644
index 1b1acd5e2f6..00000000000
--- a/arch/parisc/mm/kmap.c
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * kmap/page table map and unmap support routines
- *
- * Copyright 1999,2000 Hewlett-Packard Company
- * Copyright 2000 John Marvin <jsm at hp.com>
- * Copyright 2000 Grant Grundler <grundler at parisc-linux.org>
- * Copyright 2000 Philipp Rumpf <prumpf@tux.org>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-/*
-** Stolen mostly from arch/parisc/kernel/pci-dma.c
-*/
-
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/pci.h>
-
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-
-#include <asm/uaccess.h>
-#include <asm/pgalloc.h>
-
-#include <asm/io.h>
-#include <asm/page.h> /* get_order */
-
-#undef flush_cache_all
-#define flush_cache_all flush_all_caches
-
-typedef void (*pte_iterator_t) (pte_t * pte, unsigned long arg);
-
-#if 0
-/* XXX This routine could be used with iterate_page() to replace
- * unmap_uncached_page() and save a little code space but I didn't
- * do that since I'm not certain whether this is the right path. -PB
- */
-static void unmap_cached_pte(pte_t * pte, unsigned long addr, unsigned long arg)
-{
- pte_t page = *pte;
- pte_clear(&init_mm, addr, pte);
- if (!pte_none(page)) {
- if (pte_present(page)) {
- unsigned long map_nr = pte_pagenr(page);
- if (map_nr < max_mapnr)
- __free_page(mem_map + map_nr);
- } else {
- printk(KERN_CRIT
- "Whee.. Swapped out page in kernel page table\n");
- }
- }
-}
-#endif
-
-/* These two routines should probably check a few things... */
-static void set_uncached(pte_t * pte, unsigned long arg)
-{
- pte_val(*pte) |= _PAGE_NO_CACHE;
-}
-
-static void set_cached(pte_t * pte, unsigned long arg)
-{
- pte_val(*pte) &= ~_PAGE_NO_CACHE;
-}
-
-static inline void iterate_pte(pmd_t * pmd, unsigned long address,
- unsigned long size, pte_iterator_t op,
- unsigned long arg)
-{
- pte_t *pte;
- unsigned long end;
-
- if (pmd_none(*pmd))
- return;
- if (pmd_bad(*pmd)) {
- pmd_ERROR(*pmd);
- pmd_clear(pmd);
- return;
- }
- pte = pte_offset(pmd, address);
- address &= ~PMD_MASK;
- end = address + size;
- if (end > PMD_SIZE)
- end = PMD_SIZE;
- do {
- op(pte, arg);
- address += PAGE_SIZE;
- pte++;
- } while (address < end);
-}
-
-static inline void iterate_pmd(pgd_t * dir, unsigned long address,
- unsigned long size, pte_iterator_t op,
- unsigned long arg)
-{
- pmd_t *pmd;
- unsigned long end;
-
- if (pgd_none(*dir))
- return;
- if (pgd_bad(*dir)) {
- pgd_ERROR(*dir);
- pgd_clear(dir);
- return;
- }
- pmd = pmd_offset(dir, address);
- address &= ~PGDIR_MASK;
- end = address + size;
- if (end > PGDIR_SIZE)
- end = PGDIR_SIZE;
- do {
- iterate_pte(pmd, address, end - address, op, arg);
- address = (address + PMD_SIZE) & PMD_MASK;
- pmd++;
- } while (address < end);
-}
-
-static void iterate_pages(unsigned long address, unsigned long size,
- pte_iterator_t op, unsigned long arg)
-{
- pgd_t *dir;
- unsigned long end = address + size;
-
- dir = pgd_offset_k(address);
- flush_cache_all();
- do {
- iterate_pmd(dir, address, end - address, op, arg);
- address = (address + PGDIR_SIZE) & PGDIR_MASK;
- dir++;
- } while (address && (address < end));
- flush_tlb_all();
-}
-
-void
-kernel_set_cachemode(unsigned long vaddr, unsigned long size, int what)
-{
- switch (what) {
- case IOMAP_FULL_CACHING:
- iterate_pages(vaddr, size, set_cached, 0);
- flush_tlb_range(NULL, vaddr, size);
- break;
- case IOMAP_NOCACHE_SER:
- iterate_pages(vaddr, size, set_uncached, 0);
- flush_tlb_range(NULL, vaddr, size);
- break;
- default:
- printk(KERN_CRIT
- "kernel_set_cachemode mode %d not understood\n",
- what);
- break;
- }
-}