diff options
Diffstat (limited to 'arch/arm/lib')
-rw-r--r-- | arch/arm/lib/bitops.h | 14 | ||||
-rw-r--r-- | arch/arm/lib/testchangebit.S | 4 | ||||
-rw-r--r-- | arch/arm/lib/testclearbit.S | 4 | ||||
-rw-r--r-- | arch/arm/lib/testsetbit.S | 4 |
4 files changed, 23 insertions, 3 deletions
diff --git a/arch/arm/lib/bitops.h b/arch/arm/lib/bitops.h index 95bd35991288..f069d1b2318e 100644 --- a/arch/arm/lib/bitops.h +++ b/arch/arm/lib/bitops.h @@ -28,7 +28,7 @@ UNWIND( .fnend ) ENDPROC(\name ) .endm - .macro testop, name, instr, store + .macro __testop, name, instr, store, barrier ENTRY( \name ) UNWIND( .fnstart ) ands ip, r1, #3 @@ -38,7 +38,7 @@ UNWIND( .fnstart ) mov r0, r0, lsr #5 add r1, r1, r0, lsl #2 @ Get word offset mov r3, r2, lsl r3 @ create mask - smp_dmb + \barrier #if __LINUX_ARM_ARCH__ >= 7 && defined(CONFIG_SMP) .arch_extension mp ALT_SMP(W(pldw) [r1]) @@ -50,13 +50,21 @@ UNWIND( .fnstart ) strex ip, r2, [r1] cmp ip, #0 bne 1b - smp_dmb + \barrier cmp r0, #0 movne r0, #1 2: bx lr UNWIND( .fnend ) ENDPROC(\name ) .endm + + .macro testop, name, instr, store + __testop \name, \instr, \store, smp_dmb + .endm + + .macro sync_testop, name, instr, store + __testop \name, \instr, \store, __smp_dmb + .endm #else .macro bitop, name, instr ENTRY( \name ) diff --git a/arch/arm/lib/testchangebit.S b/arch/arm/lib/testchangebit.S index 4ebecc67e6e0..f13fe9bc2399 100644 --- a/arch/arm/lib/testchangebit.S +++ b/arch/arm/lib/testchangebit.S @@ -10,3 +10,7 @@ .text testop _test_and_change_bit, eor, str + +#if __LINUX_ARM_ARCH__ >= 6 +sync_testop _sync_test_and_change_bit, eor, str +#endif diff --git a/arch/arm/lib/testclearbit.S b/arch/arm/lib/testclearbit.S index 009afa0f5b4a..4d2c5ca620eb 100644 --- a/arch/arm/lib/testclearbit.S +++ b/arch/arm/lib/testclearbit.S @@ -10,3 +10,7 @@ .text testop _test_and_clear_bit, bicne, strne + +#if __LINUX_ARM_ARCH__ >= 6 +sync_testop _sync_test_and_clear_bit, bicne, strne +#endif diff --git a/arch/arm/lib/testsetbit.S b/arch/arm/lib/testsetbit.S index f3192e55acc8..649dbab65d8d 100644 --- a/arch/arm/lib/testsetbit.S +++ b/arch/arm/lib/testsetbit.S @@ -10,3 +10,7 @@ .text testop _test_and_set_bit, orreq, streq + +#if __LINUX_ARM_ARCH__ >= 6 +sync_testop _sync_test_and_set_bit, orreq, streq +#endif |