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author | Steve Kondik <shade@chemlab.org> | 2012-11-18 15:47:18 -0800 |
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committer | Steve Kondik <shade@chemlab.org> | 2012-11-18 15:47:18 -0800 |
commit | a546c7006355a7bd1df4267ee53d0bfa2c017c8c (patch) | |
tree | 01be0bf6c0d6968e1468ec9661fd52110f9b05a7 /hw/mips_pic.c | |
parent | baf3d7830396202df5cc47bd7bcee109c319cdb3 (diff) | |
parent | 0f809250987b64f491bd3b4b73c0f0d33036a786 (diff) | |
download | external_qemu-a546c7006355a7bd1df4267ee53d0bfa2c017c8c.zip external_qemu-a546c7006355a7bd1df4267ee53d0bfa2c017c8c.tar.gz external_qemu-a546c7006355a7bd1df4267ee53d0bfa2c017c8c.tar.bz2 |
Merge branch 'jb-mr1-release' of https://android.googlesource.com/platform/external/qemu into mr1-staging
Change-Id: I8a4a71ac65b08e6e17f26c942f67a15b85211115
Diffstat (limited to 'hw/mips_pic.c')
-rw-r--r-- | hw/mips_pic.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/hw/mips_pic.c b/hw/mips_pic.c new file mode 100644 index 0000000..9d146b8 --- /dev/null +++ b/hw/mips_pic.c @@ -0,0 +1,39 @@ +/* + * MIPS CPU interrupt support. + * + */ + +#include "hw.h" + +/* Stub functions for hardware that don't exist. */ +void pic_info(void) +{ +} + +void irq_info(void) +{ +} + +static void mips_cpu_irq_handler(void *opaque, int irq, int level) +{ + CPUState *env = (CPUState *)opaque; + int causebit; + + if (irq < 0 || 7 < irq) + cpu_abort(env, "mips_pic_cpu_handler: Bad interrupt line %d\n", + irq); + + causebit = 0x00000100 << irq; + if (level) { + env->CP0_Cause |= causebit; + cpu_interrupt(env, CPU_INTERRUPT_HARD); + } else { + env->CP0_Cause &= ~causebit; + cpu_reset_interrupt(env, CPU_INTERRUPT_HARD); + } +} + +qemu_irq *mips_cpu_irq_init(CPUState *env) +{ + return qemu_allocate_irqs(mips_cpu_irq_handler, env, 8); +} |