Commit graph

7 commits

Author SHA1 Message Date
Ralf Baechle
da9bc7263d [MIPS] SMTC: Don't set and restore irqregs ptr from self_ipi.
This did corrupt register s0 which the caller of self_ipi expects to
be unchanged.  This is a kernel bug which will only be triggered with
the compilers which compile __smtc_ipi_replay to use s0 across the
invocation of self_ipi. Gcc 4.1.2 does this, for example.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-06-11 18:20:53 +01:00
Ralf Baechle
cb56837ea5 [MIPS] SMTC: Fix crash if # of TC's > # of VPE's after pt_regs irq cleanup.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-11-01 17:46:09 +00:00
Atsushi Nemoto
f431baa55a [MIPS] ret_from_irq adjustment
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>
2006-10-09 23:20:46 +01:00
Ralf Baechle
6e74bae9a0 [MIPS] SMTC Build fix.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-09-27 13:37:36 +01:00
Ralf Baechle
192ef36619 [MIPS] TRACE_IRQFLAGS_SUPPORT support.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-07-13 21:26:09 +01:00
Ralf Baechle
4277ff5ee5 [MIPS] Fix use of ehb instruction for non-R2 configurations.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-06-29 21:10:49 +01:00
Ralf Baechle
41c594ab65 [MIPS] MT: Improved multithreading support.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:28 +02:00