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| author | Ralf Baechle <ralf@linux-mips.org> | 2009-03-23 22:14:55 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2009-03-23 23:38:05 +0100 |
| commit | 89e18eb331cc83fb4923bbc9a93beb5cb53eca0a (patch) | |
| tree | 54e28511115d2d58d5f1615184967e0fe2e388a1 /arch/mips | |
| parent | 5484879c0a50de7f60d403d375faff41cbd4ab01 (diff) | |
| download | lwn-89e18eb331cc83fb4923bbc9a93beb5cb53eca0a.tar.gz lwn-89e18eb331cc83fb4923bbc9a93beb5cb53eca0a.zip | |
MIPS: Change {set,clear,change}_c0_<foo> to return old value.
This is more standard and useful and need for the following fix to work
correctly.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/include/asm/mipsregs.h | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h index 0417516503f6..526f327475ce 100644 --- a/arch/mips/include/asm/mipsregs.h +++ b/arch/mips/include/asm/mipsregs.h @@ -1391,11 +1391,11 @@ static inline void tlb_write_random(void) static inline unsigned int \ set_c0_##name(unsigned int set) \ { \ - unsigned int res; \ + unsigned int res, new; \ \ res = read_c0_##name(); \ - res |= set; \ - write_c0_##name(res); \ + new = res | set; \ + write_c0_##name(new); \ \ return res; \ } \ @@ -1403,24 +1403,24 @@ set_c0_##name(unsigned int set) \ static inline unsigned int \ clear_c0_##name(unsigned int clear) \ { \ - unsigned int res; \ + unsigned int res, new; \ \ res = read_c0_##name(); \ - res &= ~clear; \ - write_c0_##name(res); \ + new = res & ~clear; \ + write_c0_##name(new); \ \ return res; \ } \ \ static inline unsigned int \ -change_c0_##name(unsigned int change, unsigned int new) \ +change_c0_##name(unsigned int change, unsigned int val) \ { \ - unsigned int res; \ + unsigned int res, new; \ \ res = read_c0_##name(); \ - res &= ~change; \ - res |= (new & change); \ - write_c0_##name(res); \ + new = res & ~change; \ + new |= (val & change); \ + write_c0_##name(new); \ \ return res; \ } |