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| author | Yi Li <yi.li@analog.com> | 2010-01-19 04:35:28 (GMT) |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2010-03-09 05:30:49 (GMT) |
| commit | 441504df6b81302c06010083c8d63b1465ead405 (patch) | |
| tree | ccf92436418cb23f5d5d7d55a9af027885f4e022 /arch/blackfin/mach-common | |
| parent | 5aff1642aee0fe3cb9be7339fcc09dd2bd1976f0 (diff) | |
| download | linux-441504df6b81302c06010083c8d63b1465ead405.tar.xz | |
Blackfin: add support for irqflags tracing
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin/mach-common')
| -rw-r--r-- | arch/blackfin/mach-common/entry.S | 15 | ||||
| -rw-r--r-- | arch/blackfin/mach-common/interrupt.S | 7 |
2 files changed, 22 insertions, 0 deletions
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S index ccfa7c4..1fa414f 100644 --- a/arch/blackfin/mach-common/entry.S +++ b/arch/blackfin/mach-common/entry.S @@ -966,6 +966,13 @@ ENTRY(_evt_evt14) #else cli r0; #endif +#ifdef CONFIG_TRACE_IRQFLAGS + [--sp] = rets; + sp += -12; + call _trace_hardirqs_off; + sp += 12; + rets = [sp++]; +#endif [--sp] = RETI; SP += 4; rts; @@ -989,6 +996,14 @@ ENTRY(_schedule_and_signal_from_int) p1 = rets; [sp + PT_RESERVED] = p1; +#ifdef CONFIG_TRACE_IRQFLAGS + /* trace_hardirqs_on() checks if all irqs are disabled. But here IRQ 15 + * is turned on, so disable all irqs. */ + cli r0; + sp += -12; + call _trace_hardirqs_on; + sp += 12; +#endif #ifdef CONFIG_SMP GET_PDA(p0, r0); /* Fetch current PDA (can't migrate to other CPU here) */ r0 = [p0 + PDA_IRQFLAGS]; diff --git a/arch/blackfin/mach-common/interrupt.S b/arch/blackfin/mach-common/interrupt.S index df98496..0a0c088 100644 --- a/arch/blackfin/mach-common/interrupt.S +++ b/arch/blackfin/mach-common/interrupt.S @@ -88,6 +88,13 @@ __common_int_entry: #else cli r1; #endif +#ifdef CONFIG_TRACE_IRQFLAGS + [--sp] = r0; + sp += -12; + call _trace_hardirqs_off; + sp += 12; + r0 = [sp++]; +#endif [--sp] = RETI; /* orig_pc */ /* Clear all L registers. */ r1 = 0 (x); |