diff options
Diffstat (limited to 'arch/sparc/lib/bitops.S')
| -rw-r--r-- | arch/sparc/lib/bitops.S | 85 |
1 files changed, 25 insertions, 60 deletions
diff --git a/arch/sparc/lib/bitops.S b/arch/sparc/lib/bitops.S index 253c358fe..ea9ed5a6c 100644 --- a/arch/sparc/lib/bitops.S +++ b/arch/sparc/lib/bitops.S @@ -20,12 +20,10 @@ .globl ___set_bit ___set_bit: rd %psr, %g3 - andcc %g3, PSR_PIL, %g0 - bne 1f - nop - wr %g3, PSR_PIL, %psr + nop; nop; nop; + or %g3, PSR_PIL, %g5 + wr %g5, 0x0, %psr nop; nop; nop -1: #ifdef __SMP__ set C_LABEL(bitops_spinlock), %g5 2: ldstub [%g5], %g7 ! Spin on the byte lock for SMP. @@ -38,17 +36,12 @@ ___set_bit: #ifdef __SMP__ st %g5, [%g1] set C_LABEL(bitops_spinlock), %g5 - andcc %g3, PSR_PIL, %g0 - bne 1f - stb %g0, [%g5] + stb %g0, [%g5] #else - andcc %g3, PSR_PIL, %g0 - bne 1f - st %g5, [%g1] + st %g5, [%g1] #endif wr %g3, 0x0, %psr nop; nop; nop -1: jmpl %o7, %g0 mov %g4, %o7 @@ -56,12 +49,10 @@ ___set_bit: .globl ___clear_bit ___clear_bit: rd %psr, %g3 - andcc %g3, PSR_PIL, %g0 - bne 1f - nop - wr %g3, PSR_PIL, %psr nop; nop; nop -1: + or %g3, PSR_PIL, %g5 + wr %g5, 0x0, %psr + nop; nop; nop #ifdef __SMP__ set C_LABEL(bitops_spinlock), %g5 2: ldstub [%g5], %g7 ! Spin on the byte lock for SMP. @@ -74,17 +65,12 @@ ___clear_bit: #ifdef __SMP__ st %g5, [%g1] set C_LABEL(bitops_spinlock), %g5 - andcc %g3, PSR_PIL, %g0 - bne 1f - stb %g0, [%g5] + stb %g0, [%g5] #else - andcc %g3, PSR_PIL, %g0 - bne 1f - st %g5, [%g1] + st %g5, [%g1] #endif wr %g3, 0x0, %psr nop; nop; nop -1: jmpl %o7, %g0 mov %g4, %o7 @@ -92,12 +78,10 @@ ___clear_bit: .globl ___change_bit ___change_bit: rd %psr, %g3 - andcc %g3, PSR_PIL, %g0 - bne 1f - nop - wr %g3, PSR_PIL, %psr nop; nop; nop -1: + or %g3, PSR_PIL, %g5 + wr %g5, 0x0, %psr + nop; nop; nop #ifdef __SMP__ set C_LABEL(bitops_spinlock), %g5 2: ldstub [%g5], %g7 ! Spin on the byte lock for SMP. @@ -110,17 +94,12 @@ ___change_bit: #ifdef __SMP__ st %g5, [%g1] set C_LABEL(bitops_spinlock), %g5 - andcc %g3, PSR_PIL, %g0 - bne 1f - stb %g0, [%g5] + stb %g0, [%g5] #else - andcc %g3, PSR_PIL, %g0 - bne 1f - st %g5, [%g1] + st %g5, [%g1] #endif wr %g3, 0x0, %psr nop; nop; nop -1: jmpl %o7, %g0 mov %g4, %o7 @@ -128,12 +107,10 @@ ___change_bit: .globl ___set_le_bit ___set_le_bit: rd %psr, %g3 - andcc %g3, PSR_PIL, %g0 - bne 1f - nop - wr %g3, PSR_PIL, %psr nop; nop; nop -1: + or %g3, PSR_PIL, %g5 + wr %g5, 0x0, %psr + nop; nop; nop #ifdef __SMP__ set C_LABEL(bitops_spinlock), %g5 2: ldstub [%g5], %g7 ! Spin on the byte lock for SMP. @@ -146,29 +123,22 @@ ___set_le_bit: #ifdef __SMP__ stb %g5, [%g1] set C_LABEL(bitops_spinlock), %g5 - andcc %g3, PSR_PIL, %g0 - bne 1f - stb %g0, [%g5] + stb %g0, [%g5] #else - andcc %g3, PSR_PIL, %g0 - bne 1f - stb %g5, [%g1] + stb %g5, [%g1] #endif wr %g3, 0x0, %psr nop; nop; nop -1: jmpl %o7, %g0 mov %g4, %o7 .globl ___clear_le_bit ___clear_le_bit: rd %psr, %g3 - andcc %g3, PSR_PIL, %g0 - bne 1f - nop - wr %g3, PSR_PIL, %psr nop; nop; nop -1: + or %g3, PSR_PIL, %g5 + wr %g5, 0x0, %psr + nop; nop; nop #ifdef __SMP__ set C_LABEL(bitops_spinlock), %g5 2: ldstub [%g5], %g7 ! Spin on the byte lock for SMP. @@ -181,16 +151,11 @@ ___clear_le_bit: #ifdef __SMP__ stb %g5, [%g1] set C_LABEL(bitops_spinlock), %g5 - andcc %g3, PSR_PIL, %g0 - bne 1f - stb %g0, [%g5] + stb %g0, [%g5] #else - andcc %g3, PSR_PIL, %g0 - bne 1f - stb %g5, [%g1] + stb %g5, [%g1] #endif wr %g3, 0x0, %psr nop; nop; nop -1: jmpl %o7, %g0 mov %g4, %o7 |