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authorFranck Bui-Huu <vagabon.xyz@gmail.com>2006-10-19 13:19:59 +0200
committerRalf Baechle <ralf@linux-mips.org>2006-11-30 01:14:40 +0000
commit99e3b942c62f42c8d5added63305e12372b06daf (patch)
tree53878461941bf05a4c17653ddfc40362cfcb9738 /include
parent0215ffb08ce99e2bb59eca114a99499a4d06e704 (diff)
[MIPS] page.h: remove __pa() usages.
__pa() was used by virt_to_page() and virt_addr_valid(). These latter are used when kernel is initialised so __pa() is not appropriate, we use virt_to_phys() instead. Futhermore __pa() is going to take care of CKSEG0/XKPHYS address mix for 64 bit kernels. This makes __pa() more complex than virt_to_phys() and this extra work is not needed by virt_to_page() and virt_addr_valid(). Eventually it consolidates virt_to_phys() prototype by making its argument 'const'. this avoids some warnings that was due to some virt_to_page() usages which pass const pointer. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-mips/io.h2
-rw-r--r--include/asm-mips/page.h6
-rw-r--r--include/asm-mips/pgtable.h2
3 files changed, 6 insertions, 4 deletions
diff --git a/include/asm-mips/io.h b/include/asm-mips/io.h
index bc5f3c53155..d77b657c09c 100644
--- a/include/asm-mips/io.h
+++ b/include/asm-mips/io.h
@@ -113,7 +113,7 @@ static inline void set_io_port_base(unsigned long base)
* almost all conceivable cases a device driver should not be using
* this function
*/
-static inline unsigned long virt_to_phys(volatile void * address)
+static inline unsigned long virt_to_phys(volatile const void *address)
{
return (unsigned long)address - PAGE_OFFSET;
}
diff --git a/include/asm-mips/page.h b/include/asm-mips/page.h
index 85b258ee709..edb33a14ae9 100644
--- a/include/asm-mips/page.h
+++ b/include/asm-mips/page.h
@@ -34,7 +34,9 @@
#ifndef __ASSEMBLY__
+#include <linux/pfn.h>
#include <asm/cpu-features.h>
+#include <asm/io.h>
extern void clear_page(void * page);
extern void copy_page(void * to, void * from);
@@ -160,8 +162,8 @@ typedef struct { unsigned long pgprot; } pgprot_t;
#endif
-#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
-#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
+#define virt_to_page(kaddr) pfn_to_page(PFN_DOWN(virt_to_phys(kaddr)))
+#define virt_addr_valid(kaddr) pfn_valid(PFN_DOWN(virt_to_phys(kaddr)))
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
diff --git a/include/asm-mips/pgtable.h b/include/asm-mips/pgtable.h
index 1ca4d1e185c..f2e1325fec6 100644
--- a/include/asm-mips/pgtable.h
+++ b/include/asm-mips/pgtable.h
@@ -67,7 +67,7 @@ extern unsigned long empty_zero_page;
extern unsigned long zero_page_mask;
#define ZERO_PAGE(vaddr) \
- (virt_to_page(empty_zero_page + (((unsigned long)(vaddr)) & zero_page_mask)))
+ (virt_to_page((void *)(empty_zero_page + (((unsigned long)(vaddr)) & zero_page_mask))))
#define __HAVE_ARCH_MOVE_PTE
#define move_pte(pte, prot, old_addr, new_addr) \