diff options
| author | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-05-04 13:15:24 +0000 |
|---|---|---|
| committer | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-05-04 13:15:24 +0000 |
| commit | 4c54e8756839e5ba2812ebe812d3542498a6a8a1 (patch) | |
| tree | cbfba7b20955059dfb682d0b1c6c7ba037aeb713 /hw | |
| parent | 50bf72b384536e961fd6e433dcfa5c4719201e11 (diff) | |
Remember the state of level-triggered interrupts
(Hollis Blanchard)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4330 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/ppc4xx_devs.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/hw/ppc4xx_devs.c b/hw/ppc4xx_devs.c index e87172f298..125f2d43e0 100644 --- a/hw/ppc4xx_devs.c +++ b/hw/ppc4xx_devs.c @@ -278,6 +278,7 @@ typedef struct ppcuic_t ppcuic_t; struct ppcuic_t { uint32_t dcr_base; int use_vectors; + uint32_t level; /* Remembers the state of level-triggered interrupts. */ uint32_t uicsr; /* Status register */ uint32_t uicer; /* Enable register */ uint32_t uiccr; /* Critical register */ @@ -385,10 +386,13 @@ static void ppcuic_set_irq (void *opaque, int irq_num, int level) uic->uicsr |= mask; } else { /* Level sensitive interrupt */ - if (level == 1) + if (level == 1) { uic->uicsr |= mask; - else + uic->level |= mask; + } else { uic->uicsr &= ~mask; + uic->level &= ~mask; + } } #ifdef DEBUG_UIC if (loglevel & CPU_LOG_INT) { @@ -460,6 +464,7 @@ static void dcr_write_uic (void *opaque, int dcrn, target_ulong val) switch (dcrn) { case DCR_UICSR: uic->uicsr &= ~val; + uic->uicsr |= uic->level; ppcuic_trigger_irq(uic); break; case DCR_UICSRS: |