1 #if __LINUX_ARM_ARCH__ >= 6
4 strneb r1, [ip] @ assert word-aligned
6 and r3, r0, #31 @ Get bit offset
8 add r1, r1, r0, lsl #2 @ Get word offset
18 .macro testop, instr, store
20 strneb r1, [ip] @ assert word-aligned
22 and r3, r0, #31 @ Get bit offset
24 add r1, r1, r0, lsl #2 @ Get word offset
25 mov r3, r2, lsl r3 @ create mask
28 ands r0, r2, r3 @ save old value of bit
29 \instr r2, r2, r3 @ toggle bit
41 strneb r1, [ip] @ assert word-aligned
46 save_and_disable_irqs ip
47 ldr r2, [r1, r0, lsl #2]
49 str r2, [r1, r0, lsl #2]
55 * testop - implement a test_and_xxx_bit operation.
56 * @instr: operational instruction
57 * @store: store instruction
59 * Note: we can trivially conditionalise the store instruction
60 * to avoid dirtying the data cache.
62 .macro testop, instr, store
64 strneb r1, [ip] @ assert word-aligned
67 save_and_disable_irqs ip
68 ldr r2, [r1, r0, lsl #2]!
71 \instr r2, r2, r0, lsl r3