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| author | Paul Mundt <lethal@linux-sh.org> | 2009-08-23 18:02:59 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-08-23 18:02:59 +0900 |
| commit | 0858d9c0c591ce9baa1baf72eaf6f67823f3bc25 (patch) | |
| tree | 1ea697a8e34ff1784572db22bcb5c9da7bbfb40c /arch/sh/include/asm/entry-macros.S | |
| parent | 9d7302299ee96ca954fe4ab8ca640333b6e19ad0 (diff) | |
| parent | 963e04cafbf001ec431025a46ec246ae6d89daba (diff) | |
| download | linux-0858d9c0c591ce9baa1baf72eaf6f67823f3bc25.tar.bz2 | |
Merge branch 'sh/hwblk' into sh/pm-runtime
Diffstat (limited to 'arch/sh/include/asm/entry-macros.S')
| -rw-r--r-- | arch/sh/include/asm/entry-macros.S | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/arch/sh/include/asm/entry-macros.S b/arch/sh/include/asm/entry-macros.S index 3a4752a65722..64fd0de24daf 100644 --- a/arch/sh/include/asm/entry-macros.S +++ b/arch/sh/include/asm/entry-macros.S @@ -31,8 +31,92 @@ #endif .endm +#ifdef CONFIG_TRACE_IRQFLAGS + + .macro TRACE_IRQS_ON + mov.l r0, @-r15 + mov.l r1, @-r15 + mov.l r2, @-r15 + mov.l r3, @-r15 + mov.l r4, @-r15 + mov.l r5, @-r15 + mov.l r6, @-r15 + mov.l r7, @-r15 + + mov.l 7834f, r0 + jsr @r0 + nop + + mov.l @r15+, r7 + mov.l @r15+, r6 + mov.l @r15+, r5 + mov.l @r15+, r4 + mov.l @r15+, r3 + mov.l @r15+, r2 + mov.l @r15+, r1 + mov.l @r15+, r0 + mov.l 7834f, r0 + + bra 7835f + nop + .balign 4 +7834: .long trace_hardirqs_on +7835: + .endm + .macro TRACE_IRQS_OFF + + mov.l r0, @-r15 + mov.l r1, @-r15 + mov.l r2, @-r15 + mov.l r3, @-r15 + mov.l r4, @-r15 + mov.l r5, @-r15 + mov.l r6, @-r15 + mov.l r7, @-r15 + + mov.l 7834f, r0 + jsr @r0 + nop + + mov.l @r15+, r7 + mov.l @r15+, r6 + mov.l @r15+, r5 + mov.l @r15+, r4 + mov.l @r15+, r3 + mov.l @r15+, r2 + mov.l @r15+, r1 + mov.l @r15+, r0 + mov.l 7834f, r0 + + bra 7835f + nop + .balign 4 +7834: .long trace_hardirqs_off +7835: + .endm + +#else + .macro TRACE_IRQS_ON + .endm + + .macro TRACE_IRQS_OFF + .endm +#endif + #if defined(CONFIG_CPU_SH2A) || defined(CONFIG_CPU_SH4) # define PREF(x) pref @x #else # define PREF(x) nop #endif + + /* + * Macro for use within assembly. Because the DWARF unwinder + * needs to use the frame register to unwind the stack, we + * need to setup r14 with the value of the stack pointer as + * the return address is usually on the stack somewhere. + */ + .macro setup_frame_reg +#ifdef CONFIG_DWARF_UNWINDER + mov r15, r14 +#endif + .endm |