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authorJames Hogan <james.hogan@imgtec.com>2016-05-11 15:50:27 +0100
committerRalf Baechle <ralf@linux-mips.org>2016-05-13 15:30:25 +0200
commit9e575f753576d85e83ae0afc27eca9708259a797 (patch)
tree3a8c171b002fed3835b6446d9bd25c80febe040d /arch/mips/include/asm/mipsregs.h
parent30228c40f0c6f0a93910325f120904505a4c39cc (diff)
MIPS: Avoid magic numbers probing kscratch_mask
The decode_config4() function reads kscratch_mask from CP0_Config4.KScrExist using a hard coded shift and mask. We already have a definition for the mask in mipsregs.h, so add a definition for the shift and make use of them. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13227/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/mipsregs.h')
-rw-r--r--arch/mips/include/asm/mipsregs.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index 08864cbbb27b..480d51550dc0 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -615,7 +615,8 @@
#define MIPS_CONF4_MMUEXTDEF_MMUSIZEEXT (_ULCAST_(1) << 14)
#define MIPS_CONF4_MMUEXTDEF_FTLBSIZEEXT (_ULCAST_(2) << 14)
#define MIPS_CONF4_MMUEXTDEF_VTLBSIZEEXT (_ULCAST_(3) << 14)
-#define MIPS_CONF4_KSCREXIST (_ULCAST_(255) << 16)
+#define MIPS_CONF4_KSCREXIST_SHIFT (16)
+#define MIPS_CONF4_KSCREXIST (_ULCAST_(255) << MIPS_CONF4_KSCREXIST_SHIFT)
#define MIPS_CONF4_VTLBSIZEEXT_SHIFT (24)
#define MIPS_CONF4_VTLBSIZEEXT (_ULCAST_(15) << MIPS_CONF4_VTLBSIZEEXT_SHIFT)
#define MIPS_CONF4_AE (_ULCAST_(1) << 28)