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2010-03-11microblaze: entry.S use delay slot for return handlersMichal Simek1-6/+3
Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Save current task directlyMichal Simek1-8/+4
Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Simplify entry.S - save/restore r3/r4 - ret_from_trapMichal Simek1-48/+30
There is possible to save r3/r4 at the beggining of user part before calling handlers and at the end restore it. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Add support from PREEMPTMichal Simek1-1/+24
This patch add core PREEMPT support for Microblaze. I tried to trace it via tracers and I was able to see any output. I also added low level debug functions to see if that code is called. Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-12-14microblaze: Remove rt_sigsuspend wrapperMichal Simek1-11/+0
Generic rt_sigsuspend syscalls doesn't need any asm wrapper. Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-12-14microblaze: Do not count system calls in defaultMichal Simek1-0/+4
There is not necessary to count system calls that's why I added DEBUG macro Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-12-14microblaze: Remove saving and restoring before calling signal codeMichal Simek1-4/+0
Saving is done in SAVE_STATE macros that's why another save discard previous saved value. This change has no effect to normal programs because they ends in any exception and they are killed. On the other side has effect on debugging. Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-10-05microblaze: Clear sticky FSR register after saving it to func parametrMichal Simek1-0/+2
Previous patch d63678d607d0e37ec7abe5ceb545d7e8aab956a4 clear it for noMMU kernel. This one do it for MMU. Correct noMMU version Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-09-22microblaze: Support ptrace syscall tracing.Michal Simek1-12/+60
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-07-06microblaze: use generic syscalls.hArnd Bergmann1-6/+5
The prototypes in syscalls.h all make sense for microblaze, but for some of them, the actual implementation in sys_microblaze.c needs to be adapted. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-07-06microblaze: clean up signal handlingArnd Bergmann1-23/+0
When legacy signal handling is disabled, the arch/microblaze/kernel/signal.c implementation can be much simpler, as most of it is handled generically from kernel/signal.c. This is also a prerequisite for using the generic asm/unistd.h, which does not provide __NR_sigreturn, because this macro is referenced by the current signal.c implementation. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-26microblaze_mmu_v2: entry.S, entry.hMichal Simek1-0/+1116
Signed-off-by: Michal Simek <monstr@monstr.eu>
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