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| author |   Max Filippov <jcmvbkbc@gmail.com> | 2019-10-15 22:14:15 -0700 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2019-11-26 11:33:38 -0800 |
| commit | e444917019258ef3bd564d0b4a432add2c26a2ae (patch) | |
| tree | 0305500f3cb14d54a5778424686288b10459b14b /arch/xtensa | |
| parent | xtensa: use macros to generate *_bit and test_and_*_bit functions (diff) | |
| download | linux-dev-e444917019258ef3bd564d0b4a432add2c26a2ae.tar.xz linux-dev-e444917019258ef3bd564d0b4a432add2c26a2ae.zip | |
xtensa: use named assembly arguments in bitops.h
Numeric assembly arguments are hard to understand and assembly code that
uses them is hard to modify. Use named arguments in BIT_OP and
TEST_AND_BIT_OP macros.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa')
| -rw-r--r-- | arch/xtensa/include/asm/bitops.h | 56 |
1 files changed, 28 insertions, 28 deletions
diff --git a/arch/xtensa/include/asm/bitops.h b/arch/xtensa/include/asm/bitops.h index bfaad56870f6..5a35d026c1c3 100644 --- a/arch/xtensa/include/asm/bitops.h +++ b/arch/xtensa/include/asm/bitops.h @@ -107,13 +107,13 @@ static inline void op##_bit(unsigned int bit, volatile unsigned long *p)\ p += bit >> 5; \ \ __asm__ __volatile__( \ - "1: l32ex %0, %2\n" \ - " "insn" %0, %0, %1\n" \ - " s32ex %0, %2\n" \ - " getex %0\n" \ - " beqz %0, 1b\n" \ - : "=&a" (tmp) \ - : "a" (inv mask), "a" (p) \ + "1: l32ex %[tmp], %[addr]\n" \ + " "insn" %[tmp], %[tmp], %[mask]\n" \ + " s32ex %[tmp], %[addr]\n" \ + " getex %[tmp]\n" \ + " beqz %[tmp], 1b\n" \ + : [tmp] "=&a" (tmp) \ + : [mask] "a" (inv mask), [addr] "a" (p) \ : "memory"); \ } @@ -127,13 +127,13 @@ test_and_##op##_bit(unsigned int bit, volatile unsigned long *p) \ p += bit >> 5; \ \ __asm__ __volatile__( \ - "1: l32ex %1, %3\n" \ - " "insn" %0, %1, %2\n" \ - " s32ex %0, %3\n" \ - " getex %0\n" \ - " beqz %0, 1b\n" \ - : "=&a" (tmp), "=&a" (value) \ - : "a" (inv mask), "a" (p) \ + "1: l32ex %[value], %[addr]\n" \ + " "insn" %[tmp], %[value], %[mask]\n" \ + " s32ex %[tmp], %[addr]\n" \ + " getex %[tmp]\n" \ + " beqz %[tmp], 1b\n" \ + : [tmp] "=&a" (tmp), [value] "=&a" (value) \ + : [mask] "a" (inv mask), [addr] "a" (p) \ : "memory"); \ \ return value & mask; \ @@ -150,13 +150,13 @@ static inline void op##_bit(unsigned int bit, volatile unsigned long *p)\ p += bit >> 5; \ \ __asm__ __volatile__( \ - "1: l32i %1, %3, 0\n" \ - " wsr %1, scompare1\n" \ - " "insn" %0, %1, %2\n" \ - " s32c1i %0, %3, 0\n" \ - " bne %0, %1, 1b\n" \ - : "=&a" (tmp), "=&a" (value) \ - : "a" (inv mask), "a" (p) \ + "1: l32i %[value], %[addr], 0\n" \ + " wsr %[value], scompare1\n" \ + " "insn" %[tmp], %[value], %[mask]\n" \ + " s32c1i %[tmp], %[addr], 0\n" \ + " bne %[tmp], %[value], 1b\n" \ + : [tmp] "=&a" (tmp), [value] "=&a" (value) \ + : [mask] "a" (inv mask), [addr] "a" (p) \ : "memory"); \ } @@ -170,13 +170,13 @@ test_and_##op##_bit(unsigned int bit, volatile unsigned long *p) \ p += bit >> 5; \ \ __asm__ __volatile__( \ - "1: l32i %1, %3, 0\n" \ - " wsr %1, scompare1\n" \ - " "insn" %0, %1, %2\n" \ - " s32c1i %0, %3, 0\n" \ - " bne %0, %1, 1b\n" \ - : "=&a" (tmp), "=&a" (value) \ - : "a" (inv mask), "a" (p) \ + "1: l32i %[value], %[addr], 0\n" \ + " wsr %[value], scompare1\n" \ + " "insn" %[tmp], %[value], %[mask]\n" \ + " s32c1i %[tmp], %[addr], 0\n" \ + " bne %[tmp], %[value], 1b\n" \ + : [tmp] "=&a" (tmp), [value] "=&a" (value) \ + : [mask] "a" (inv mask), [addr] "a" (p) \ : "memory"); \ \ return tmp & mask; \ |