kernel.git/arch/powerpc/kernel/kgdb.c, branch linux-3.7.y

powerpc/kgdb: Restore current_thread_info properly

2012-08-24T10:26:06Z

For powerpc BooKE and e200, singlestep is handled on the critical/dbg exception stack. This causes current_thread_info() to fail for kgdb internal, so previously We work around this issue by copying the thread_info from the kernel stack before calling kgdb_handle_exception, and copying it back afterwards. But actually we don't do this properly. We should backup current_thread_info then restore that when exit. Signed-off-by: Tiejun Chen Signed-off-by: Benjamin Herrenschmidt

powerpc/kgdb: Bail out of KGDB when we've been triggered

2012-08-24T10:26:05Z

We need to skip a breakpoint exception when it occurs after a breakpoint has already been removed. Signed-off-by: Tiejun Chen Signed-off-by: Benjamin Herrenschmidt

powerpc/kgdb: Do not set kgdb_single_step on ppc

2012-08-24T10:26:05Z

The kgdb_single_step flag has the possibility to indefinitely hang the system on an SMP system. The x86 arch have the same problem, and that problem was fixed by commit 8097551d9ab9b9e3630(kgdb,x86: do not set kgdb_single_step on x86). This patch does the same behaviors as x86's patch. Signed-off-by: Dongdong Deng Signed-off-by: Jason Wessel Signed-off-by: Benjamin Herrenschmidt

powerpc: Fix fallout from system.h split up

2012-04-02T04:00:03Z

Signed-off-by: Stephen Rothwell Signed-off-by: Benjamin Herrenschmidt

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2011-05-23T16:12:26Z

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) b43: fix comment typo reqest -> request Haavard Skinnemoen has left Atmel cris: typo in mach-fs Makefile Kconfig: fix copy/paste-ism for dell-wmi-aio driver doc: timers-howto: fix a typo ("unsgined") perf: Only include annotate.h once in tools/perf/util/ui/browsers/annotate.c md, raid5: Fix spelling error in comment ('Ofcourse' --> 'Of course'). treewide: fix a few typos in comments regulator: change debug statement be consistent with the style of the rest Revert "arm: mach-u300/gpio: Fix mem_region resource size miscalculations" audit: acquire creds selectively to reduce atomic op overhead rtlwifi: don't touch with treewide double semicolon removal treewide: cleanup continuations and remove logging message whitespace ath9k_hw: don't touch with treewide double semicolon removal include/linux/leds-regulator.h: fix syntax in example code tty: fix typo in descripton of tty_termios_encode_baud_rate xtensa: remove obsolete BKL kernel option from defconfig m68k: fix comment typo 'occcured' arch:Kconfig.locks Remove unused config option. treewide: remove extra semicolons ...

powerpc: Remove call sites of MSG_ALL_BUT_SELF

2011-05-19T04:30:46Z

The only user of MSG_ALL_BUT_SELF in the whole kernel tree is powerpc, and it only uses it to start the debugger. Both debuggers always call smp_send_debugger_break with MSG_ALL_BUT_SELF, and only mpic can do anything more optimal than a loop over all online cpus, but all message passing implementations have to code for this special delivery target. Convert smp_send_debugger_break to take void and loop calling the smp_ops message_pass function for each of the other cpus in the online cpumask. Use raw_smp_processor_id() because we are either entering the debugger or trying to start kdump and the additional warning it not useful were it to trigger. Signed-off-by: Milton Miller Signed-off-by: Benjamin Herrenschmidt

treewide: fix a few typos in comments

2011-05-10T08:16:21Z

- kenrel -> kernel - whetehr -> whether - ttt -> tt - sss -> ss Signed-off-by: Justin P. Mattock Signed-off-by: Jiri Kosina

kgdb,ppc: Fix regression in evr register handling

2010-11-17T19:54:58Z

Commit ff10b88b5a05c8f1646dd15fb9f6093c1384ff6d (kgdb,ppc: Individual register get/set for ppc) introduced a problem where memcpy was used incorrectly to read and write the evr registers with a kernel that has: CONFIG_FSL_BOOKE=y CONFIG_SPE=y CONFIG_KGDB=y This patch also fixes the following compilation problems: arch/powerpc/kernel/kgdb.c: In function 'dbg_get_reg': arch/powerpc/kernel/kgdb.c:341: error: passing argument 2 of 'memcpy' makes pointer from integer without a cast arch/powerpc/kernel/kgdb.c: In function 'dbg_set_reg': arch/powerpc/kernel/kgdb.c:366: error: passing argument 1 of 'memcpy' makes pointer from integer without a cast [jason.wessel@windriver.com: Remove void * casts and fix patch header] Reported-by: Milton Miller Signed-off-by: Dongdong Deng Acked-by: Kumar Gala Signed-off-by: Jason Wessel CC: linuxppc-dev@lists.ozlabs.org

kgdb,ppc: Individual register get/set for ppc

2010-10-29T18:14:42Z

commit 534af1082329392bc29f6badf815e69ae2ae0f4c(kgdb,kdb: individual register set and and get API) introduce dbg_get_reg/dbg_set_reg API for individual register get and set. This patch implement those APIs for ppc. Signed-off-by: Dongdong Deng Signed-off-by: Jason Wessel

kgdb,powerpc: Replace hardcoded offset by BREAK_INSTR_SIZE

2010-08-05T14:22:22Z

kgdb_handle_breakpoint checks the first arch_kgdb_breakpoint which is not known by gdb that's why is necessary jump over it. The jump lenght is equal to BREAK_INSTR_SIZE that's why is cleaner to use defined macro instead of hardcoded non-described offset. Signed-off-by: Michal Simek Signed-off-by: Jason Wessel Acked-by: Benjamin Herrenschmidt