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* [MIPS] SMTC: Interrupt mask backstop hackKevin D. Kissell2007-07-121-0/+2
| | | | | | | | | | | To support multiple TC microthreads acting as "CPUs" within a VPE, VPE-wide interrupt mask bits must be specially manipulated during interrupt handling. To support legacy drivers and interrupt controller management code, SMTC has a "backstop" to track and if necessary restore the interrupt mask. This has some performance impact on interrupt service overhead. Disable it only if you know what you are doing. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] lockdep: Handle interrupts in R3000 style c0_status register.Chris Dearman2007-03-291-1/+5
| | | | | | | | Check the IEP bit for R3000 style processors when checking to see if interrupts will be reenabled in restore_all. Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Make entry.S a little more readable.Franck Bui-Huu2007-02-131-11/+8
| | | | | | | | | | When CONFIG_PREEMPT is not set, it also moves one branch instruction from ret_from_irq() to ret_from_exception(). Therefore we favour the return from irq case which should be more common than the other one. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] SMTC: Fix crash if # of TC's > # of VPE's after pt_regs irq cleanup.Ralf Baechle2006-11-011-0/+3
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] ret_from_irq adjustmentAtsushi Nemoto2006-10-091-5/+9
| | | | | | | | | | | Make sure that RA on top of interrupt stack is an address of ret_from_irq, so that dump_stack etc. can trace info interrupted context. Also this patch fixes except_vec_vi_handler and __smtc_ipi_vector which seems broken. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Complete fixes after removal of pt_regs argument to int handlers.Ralf Baechle2006-10-081-1/+0
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] TRACE_IRQFLAGS_SUPPORT support.Ralf Baechle2006-07-131-0/+15
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [PATCH] sched: cleanup, remove task_t, convert to struct task_structIngo Molnar2006-07-031-1/+1
| | | | | | | | | | | | cleanup: remove task_t and convert all the uses to struct task_struct. I introduced it for the scheduler anno and it was a mistake. Conversion was mostly scripted, the result was reviewed and all secondary whitespace and style impact (if any) was fixed up by hand. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-301-1/+0
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [MIPS] Fix use of ehb instruction for non-R2 configurations.Ralf Baechle2006-06-291-3/+3
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Fix typoRalf Baechle2006-06-011-1/+1
| | | | | | Found by Chris Dearman (chris@mips.com). Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] MT: Improved multithreading support.Ralf Baechle2006-04-191-0/+34
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] R2: Instruction hazard barrier.Ralf Baechle2006-04-191-0/+15
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Rewrite spurious_interrupt from assembler to C.Ralf Baechle2006-04-191-26/+0
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Fix excessive signal latencies.Ralf Baechle2005-10-291-1/+1
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Fix preemption bug.Ralf Baechle2005-10-291-2/+1
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Use preempt_schedule_irq.Ralf Baechle2005-10-291-5/+2
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Remove unused arguments from preempt_{start,stop}/local_irq_{en,dis}able.Thiemo Seufer2005-10-291-18/+17
| | | | | | | | Don't clobber the preloaded TI_FLAGS in a2 needlessly. Unexport local functions. Signed-off-by: Thiemo Seufer <ths@networkno.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* De-optimize and decomplicate the spurious interrupt handler.Thiemo Seufer2005-10-291-8/+5
| | | | | Signed-off-by: Thiemo Seufer <ths@networkno.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+155
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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