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| author | Rabin Vincent <rabin@rab.in> | 2015-02-19 21:36:55 +0100 |
|---|---|---|
| committer | Jesper Nilsson <jespern@axis.com> | 2015-09-05 00:56:49 +0200 |
| commit | 444e0c2881bcc70db6833d9c653c6ced36813d3b (patch) | |
| tree | 49a9229250dd0772fabe063b691d80273b882ad2 /arch/cris/arch-v32 | |
| parent | 20ae24739968ae7f94d0e73215d444042f91df78 (diff) | |
| download | linux-444e0c2881bcc70db6833d9c653c6ced36813d3b.tar.bz2 | |
CRISv32: add support for irqflags tracing
Add support irqflags tracing, which is required for things like lockdep
and ftrace.
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Diffstat (limited to 'arch/cris/arch-v32')
| -rw-r--r-- | arch/cris/arch-v32/kernel/entry.S | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/cris/arch-v32/kernel/entry.S b/arch/cris/arch-v32/kernel/entry.S index 1c5595a6ceb5..b17a20999f87 100644 --- a/arch/cris/arch-v32/kernel/entry.S +++ b/arch/cris/arch-v32/kernel/entry.S @@ -240,6 +240,17 @@ ret_from_sys_call: .type _Rexit,@function _Rexit: +#if defined(CONFIG_TRACE_IRQFLAGS) + addoq +PT_ccs, $sp, $acr + move.d [$acr], $r0 + btstq 15, $r0 ; I1 + bpl 1f + nop + jsr trace_hardirqs_on + nop +1: +#endif + ;; This epilogue MUST match the prologues in multiple_interrupt, irq.h ;; and ptregs.h. addq 4, $sp ; Skip orig_r10. |