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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-03-05 12:07:42 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-03-14 08:46:50 +0100 |
| commit | de5d6d048db50312e20931e2c8bfb14305b138a5 (patch) | |
| tree | 846f75afdd5996da951a6cdf427a49c7a1a555d8 | |
| parent | score: Add SMP lock profiling support (diff) | |
| download | rtems-de5d6d048db50312e20931e2c8bfb14305b138a5.tar.bz2 | |
sparc: Add support for interrupt profiling
| -rw-r--r-- | c/src/lib/libbsp/sparc/shared/irq_asm.S | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/c/src/lib/libbsp/sparc/shared/irq_asm.S b/c/src/lib/libbsp/sparc/shared/irq_asm.S index a2772520f2..39629a34ae 100644 --- a/c/src/lib/libbsp/sparc/shared/irq_asm.S +++ b/c/src/lib/libbsp/sparc/shared/irq_asm.S @@ -399,7 +399,14 @@ save_isf: subcc %l7, 1, %l7 ! outermost interrupt handler? bnz dont_switch_stacks ! No, then do not switch stacks - nop +#if defined( RTEMS_PROFILING ) + sethi %hi(SYM(_SPARC_Counter)), %o5 + ld [%o5 + %lo(SYM(_SPARC_Counter))], %l4 + ld [%l4], %o5 +#else + nop +#endif + ld [%l5 + PER_CPU_INTERRUPT_STACK_HIGH], %sp dont_switch_stacks: @@ -453,7 +460,21 @@ dont_fix_pil2: ! WAS LOADED WHEN ISF WAS SAVED!!! mov %l3, %o0 ! o0 = 1st arg = vector number call %g4, 0 - nop ! delay slot +#if defined( RTEMS_PROFILING ) + mov %o5, %l3 ! save interrupt entry instant + cmp %l7, 0 + bne profiling_not_outer_most_exit + nop + call SYM(sparc_disable_interrupts), 0 + nop + ld [%l4], %o2 ! o2 = 3rd arg = interrupt exit instant + mov %l3, %o1 ! o1 = 2nd arg = interrupt entry instant + call SYM(_Profiling_Outer_most_interrupt_entry_and_exit), 0 + mov %l5, %o0 ! o0 = 1st arg = per-CPU control +profiling_not_outer_most_exit: +#else + nop ! delay slot +#endif /* * Redisable traps so we can finish up the interrupt processing. |