4 #ifndef _ASM_IRQFLAGS_H
5 #define _ASM_IRQFLAGS_H
9 * Get definitions for arch_local_save_flags(x), etc.
11 #include <asm/hw_irq.h>
14 #ifdef CONFIG_TRACE_IRQFLAGS
15 #ifdef CONFIG_IRQSOFF_TRACER
17 * Since the ftrace irqsoff latency trace checks CALLER_ADDR1,
18 * which is the stack frame here, we need to force a stack frame
19 * in case we came from user space.
21 #define TRACE_WITH_FRAME_BUFFER(func) \
30 #define TRACE_WITH_FRAME_BUFFER(func) \
35 * Most of the CPU's IRQ-state tracing is done from assembly code; we
36 * have to call a C function so call a wrapper that saves all the
37 * C-clobbered registers.
39 #define TRACE_ENABLE_INTS TRACE_WITH_FRAME_BUFFER(.trace_hardirqs_on)
40 #define TRACE_DISABLE_INTS TRACE_WITH_FRAME_BUFFER(.trace_hardirqs_off)
43 * This is used by assembly code to soft-disable interrupts first and
44 * reconcile irq state.
46 #define RECONCILE_IRQ_STATE(__rA, __rB) \
47 lbz __rA,PACASOFTIRQEN(r13); \
48 lbz __rB,PACAIRQHAPPENED(r13); \
51 ori __rB,__rB,PACA_IRQ_HARD_DIS; \
52 stb __rB,PACAIRQHAPPENED(r13); \
54 stb __rA,PACASOFTIRQEN(r13); \
59 #define TRACE_ENABLE_INTS
60 #define TRACE_DISABLE_INTS
62 #define RECONCILE_IRQ_STATE(__rA, __rB) \
63 lbz __rA,PACAIRQHAPPENED(r13); \
65 ori __rA,__rA,PACA_IRQ_HARD_DIS; \
66 stb __rB,PACASOFTIRQEN(r13); \
67 stb __rA,PACAIRQHAPPENED(r13)