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| author | Kevin D. Kissell <kevink@paralogos.com> | 2008-09-09 21:48:52 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2008-10-03 17:58:58 +0100 |
| commit | 8531a35e5e275b17c57c39b7911bc2b37025f28c (patch) | |
| tree | c593e23c875d0639a8f422c0ceb8b2a7738d143e /arch/mips/kernel/cpu-probe.c | |
| parent | d2bb01b042a38219fbddaafc214c5beb96248d2f (diff) | |
| download | linux-8531a35e5e275b17c57c39b7911bc2b37025f28c.tar.gz linux-8531a35e5e275b17c57c39b7911bc2b37025f28c.tar.bz2 linux-8531a35e5e275b17c57c39b7911bc2b37025f28c.zip | |
[MIPS] SMTC: Fix SMTC dyntick support.
Rework of SMTC support to make it work with the new clock event system,
allowing "tickless" operation, and to make it compatible with the use of
the "wait_irqoff" idle loop. The new clocking scheme means that the
previously optional IPI instant replay mechanism is now required, and has
been made more robust.
Signed-off-by: Kevin D. Kissell <kevink@paralogos.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/cpu-probe.c')
| -rw-r--r-- | arch/mips/kernel/cpu-probe.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 11c92dc53791..e621fda8ab37 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -54,14 +54,18 @@ extern void r4k_wait(void); * interrupt is requested" restriction in the MIPS32/MIPS64 architecture makes * using this version a gamble. */ -static void r4k_wait_irqoff(void) +void r4k_wait_irqoff(void) { local_irq_disable(); if (!need_resched()) - __asm__(" .set mips3 \n" + __asm__(" .set push \n" + " .set mips3 \n" " wait \n" - " .set mips0 \n"); + " .set pop \n"); local_irq_enable(); + __asm__(" .globl __pastwait \n" + "__pastwait: \n"); + return; } /* |