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MIPS: Tidy EntryLo bit definitions, add PFN 

Tidy up the definition of the EntryLo RI & XI bits using BITS_PER_LONG
rather than #ifdef'ing on CONFIG_64BIT, and add a definition for the
offset to the PFN field for use by a later patch.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-kernel@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11217/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Paul Burton 2015-09-22 11:42:51 -07:00 committed by Ralf Baechle
parent c676589b05
commit c6956728c7
1 changed files with 3 additions and 9 deletions
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12
arch/mips/include/asm/mipsregs.h
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@ -132,15 +132,9 @@
#define R3K_ENTRYLO_N (_ULCAST_(1) << 11)
/* MIPS32/64 EntryLo bit definitions */
#ifdef CONFIG_64BIT
/* as read by dmfc0 */
#define MIPS_ENTRYLO_XI (_ULCAST_(1) << 62)
#define MIPS_ENTRYLO_RI (_ULCAST_(1) << 63)
#else
/* as read by mfc0 */
#define MIPS_ENTRYLO_XI (_ULCAST_(1) << 30)
#define MIPS_ENTRYLO_RI (_ULCAST_(1) << 31)
#endif
#define MIPS_ENTRYLO_PFN_SHIFT 6
#define MIPS_ENTRYLO_XI (_ULCAST_(1) << (BITS_PER_LONG - 2))
#define MIPS_ENTRYLO_RI (_ULCAST_(1) << (BITS_PER_LONG - 1))
/*
* Values for PageMask register