diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2013-04-22 17:57:54 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-25 12:51:25 -0700 |
| commit | 65dcded2f1e5582e8f0fe6ef315b2274270a6302 (patch) | |
| tree | 7a369d65d9bc5d2d9b26deafb23b551e402e7739 /arch | |
| parent | 7a5324f9edf0e920c99ed90872e1baeaf04acbc1 (diff) | |
Revert "MIPS: page.h: Provide more readable definition for PAGE_MASK."
commit 3b5e50edaf500f392f4a372296afc0b99ffa7e70 upstream.
This reverts commit c17a6554782ad531f4713b33fd6339ba67ef6391.
Manuel Lauss writes:
lmo commit c17a6554 (MIPS: page.h: Provide more readable definition for
PAGE_MASK) apparently breaks ioremap of 36-bit addresses on my Alchemy
systems (PCI and PCMCIA) The reason is that in arch/mips/mm/ioremap.c
line 157 (phys_addr &= PAGE_MASK) bits 32-35 are cut off. Seems the
new PAGE_MASK is explicitly 32bit, or one could make it signed instead
of unsigned long.
From: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/include/asm/page.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h index dbaec94046da..21bff32ca854 100644 --- a/arch/mips/include/asm/page.h +++ b/arch/mips/include/asm/page.h @@ -31,7 +31,7 @@ #define PAGE_SHIFT 16 #endif #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE - 1)) +#define PAGE_MASK (~((1 << PAGE_SHIFT) - 1)) #ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT #define HPAGE_SHIFT (PAGE_SHIFT + PAGE_SHIFT - 3) |