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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-09-27 20:57:54 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-09-27 20:57:54 +0200 |
| commit | 2dc94310bd94d0906febea7d0f7c188da620c952 (patch) | |
| tree | 6de4096f1887e2c00966177354b1c378e59bd632 /arch/s390/kernel/entry.S | |
| parent | [ARM] 3860/1: Versatile PCI config byte accesses (diff) | |
| parent | ARM: OMAP: Remove common pm.c (diff) | |
| download | linux-2dc94310bd94d0906febea7d0f7c188da620c952.tar.xz linux-2dc94310bd94d0906febea7d0f7c188da620c952.zip | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/tmlind/linux-omap-upstream into devel
Diffstat (limited to 'arch/s390/kernel/entry.S')
| -rw-r--r-- | arch/s390/kernel/entry.S | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 5b5799ac8f83..0c712b78a7e8 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -505,6 +505,8 @@ pgm_no_vtime2: mvc __THREAD_per+__PER_address(4,%r1),__LC_PER_ADDRESS mvc __THREAD_per+__PER_access_id(1,%r1),__LC_PER_ACCESS_ID oi __TI_flags+3(%r9),_TIF_SINGLE_STEP # set TIF_SINGLE_STEP + tm SP_PSW+1(%r15),0x01 # kernel per event ? + bz BASED(kernel_per) l %r3,__LC_PGM_ILC # load program interruption code la %r8,0x7f nr %r8,%r3 # clear per-event-bit and ilc @@ -536,6 +538,16 @@ pgm_no_vtime3: stosm __SF_EMPTY(%r15),0x03 # reenable interrupts b BASED(sysc_do_svc) +# +# per was called from kernel, must be kprobes +# +kernel_per: + mvi SP_TRAP+1(%r15),0x28 # set trap indication to pgm check + la %r2,SP_PTREGS(%r15) # address of register-save area + l %r1,BASED(.Lhandle_per) # load adr. of per handler + la %r14,BASED(sysc_leave) # load adr. of system return + br %r1 # branch to do_single_step + /* * IO interrupt handler routine */ |