2011-05-01 16:47:18

by Sebastian Andrzej Siewior

Subject: [REPOST PATCH 1/2] xtensa/mm: remove pgtable.c

it is not referenced by any Makefile. pte_alloc_one_kernel() and
pte_alloc_one() is implemented in arch/xtensa/include/asm/pgalloc.h.

Signed-off-by: Sebastian Andrzej Siewior <[email protected]>
---
arch/xtensa/mm/pgtable.c | 72 ----------------------------------------------
1 files changed, 0 insertions(+), 72 deletions(-)
delete mode 100644 arch/xtensa/mm/pgtable.c

diff --git a/arch/xtensa/mm/pgtable.c b/arch/xtensa/mm/pgtable.c
deleted file mode 100644
index 6979927..0000000
--- a/arch/xtensa/mm/pgtable.c
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * arch/xtensa/mm/pgtable.c
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2001 - 2005 Tensilica Inc.
- *
- * Chris Zankel <[email protected]>
- */
-
-#if (DCACHE_SIZE > PAGE_SIZE)
-
-pte_t* pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
-{
- pte_t *pte = NULL, *p;
- int color = ADDR_COLOR(address);
- int i;
-
- p = (pte_t*) __get_free_pages(GFP_KERNEL|__GFP_REPEAT, COLOR_ORDER);
-
- if (likely(p)) {
- split_page(virt_to_page(p), COLOR_ORDER);
-
- for (i = 0; i < COLOR_SIZE; i++) {
- if (ADDR_COLOR(p) == color)
- pte = p;
- else
- free_page(p);
- p += PTRS_PER_PTE;
- }
- clear_page(pte);
- }
- return pte;
-}
-
-#ifdef PROFILING
-
-int mask;
-int hit;
-int flush;
-
-#endif
-
-struct page* pte_alloc_one(struct mm_struct *mm, unsigned long address)
-{
- struct page *page = NULL, *p;
- int color = ADDR_COLOR(address);
-
- p = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER);
-
- if (likely(p)) {
- split_page(p, COLOR_ORDER);
-
- for (i = 0; i < PAGE_ORDER; i++) {
- if (PADDR_COLOR(page_address(p)) == color)
- page = p;
- else
- __free_page(p);
- p++;
- }
- clear_highpage(page);
- }
-
- return page;
-}
-
-#endif
-
-
-
--
1.7.4.1

2011-05-01 16:47:21

by Sebastian Andrzej Siewior

Subject: [REPOST PATCH 2/2] xtensa/mm: remove WANT_PAGE_VIRTUAL

This is not usefull: it provides page->virtual and is used with
highmem. xtensa has no support for highmem and those HIGHMEM bits which are
found by grep are partly implemented. The interesting functions like kmap()
are missing. If someone actually implements the complete HIGHMEM support he
could use HASHED_PAGE_VIRTUAL like most others do.

Signed-off-by: Sebastian Andrzej Siewior <[email protected]>
---
arch/xtensa/include/asm/page.h | 4 ----
1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/arch/xtensa/include/asm/page.h b/arch/xtensa/include/asm/page.h
index 161bb89..7a5591a 100644
--- a/arch/xtensa/include/asm/page.h
+++ b/arch/xtensa/include/asm/page.h
@@ -171,10 +171,6 @@ extern void copy_user_page(void*, void*, unsigned long, struct page*);
#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)

-#ifdef CONFIG_MMU
-#define WANT_PAGE_VIRTUAL
-#endif
-
#endif /* __ASSEMBLY__ */

#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
--
1.7.4.1