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authoraurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162>2009-03-02 16:42:32 +0000
committeraurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162>2009-03-02 16:42:32 +0000
commit9fdc60bf55fc291d734735ddfb5629f8e8ced32b (patch)
tree6fe6fc995b8854e50750d035f05556dddfb72ccd /hw/ppc.c
parent74c62ba88902575be9ac3badf95d773470884b1c (diff)
kvm/powerpc: Add irq support for E500 core
Signed-off-by: Liu Yu <yu.liu@freescale.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6662 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'hw/ppc.c')
-rw-r--r--hw/ppc.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/hw/ppc.c b/hw/ppc.c
index 9a01c01748..b534e39562 100644
--- a/hw/ppc.c
+++ b/hw/ppc.c
@@ -314,6 +314,66 @@ void ppc40x_irq_init (CPUState *env)
env, PPC40x_INPUT_NB);
}
+/* PowerPC E500 internal IRQ controller */
+static void ppce500_set_irq (void *opaque, int pin, int level)
+{
+ CPUState *env = opaque;
+ int cur_level;
+
+ LOG_IRQ("%s: env %p pin %d level %d\n", __func__,
+ env, pin, level);
+ cur_level = (env->irq_input_state >> pin) & 1;
+ /* Don't generate spurious events */
+ if ((cur_level == 1 && level == 0) || (cur_level == 0 && level != 0)) {
+ switch (pin) {
+ case PPCE500_INPUT_MCK:
+ if (level) {
+ LOG_IRQ("%s: reset the PowerPC system\n",
+ __func__);
+ qemu_system_reset_request();
+ }
+ break;
+ case PPCE500_INPUT_RESET_CORE:
+ if (level) {
+ LOG_IRQ("%s: reset the PowerPC core\n", __func__);
+ ppc_set_irq(env, PPC_INTERRUPT_MCK, level);
+ }
+ break;
+ case PPCE500_INPUT_CINT:
+ /* Level sensitive - active high */
+ LOG_IRQ("%s: set the critical IRQ state to %d\n",
+ __func__, level);
+ ppc_set_irq(env, PPC_INTERRUPT_CEXT, level);
+ break;
+ case PPCE500_INPUT_INT:
+ /* Level sensitive - active high */
+ LOG_IRQ("%s: set the core IRQ state to %d\n",
+ __func__, level);
+ ppc_set_irq(env, PPC_INTERRUPT_EXT, level);
+ break;
+ case PPCE500_INPUT_DEBUG:
+ /* Level sensitive - active high */
+ LOG_IRQ("%s: set the debug pin state to %d\n",
+ __func__, level);
+ ppc_set_irq(env, PPC_INTERRUPT_DEBUG, level);
+ break;
+ default:
+ /* Unknown pin - do nothing */
+ LOG_IRQ("%s: unknown IRQ pin %d\n", __func__, pin);
+ return;
+ }
+ if (level)
+ env->irq_input_state |= 1 << pin;
+ else
+ env->irq_input_state &= ~(1 << pin);
+ }
+}
+
+void ppce500_irq_init (CPUState *env)
+{
+ env->irq_inputs = (void **)qemu_allocate_irqs(&ppce500_set_irq,
+ env, PPCE500_INPUT_NB);
+}
/*****************************************************************************/
/* PowerPC time base and decrementer emulation */
struct ppc_tb_t {