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authorPaolo Bonzini <pbonzini@redhat.com>2013-02-05 12:03:15 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2013-03-01 15:01:19 +0100
commit530182169e897c0e401b245552a4c58dc6846912 (patch)
tree8c39251d7e89855a89d925359f71639400782cd6 /hw/mips/mips_int.c
parente4c8b28cde12d01ada8fe869567dc5717a2dfcb7 (diff)
downloadqemu-530182169e897c0e401b245552a4c58dc6846912.tar.gz
hw: move boards and other isolated files to hw/ARCH
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/mips/mips_int.c')
-rw-r--r--hw/mips/mips_int.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/hw/mips/mips_int.c b/hw/mips/mips_int.c
new file mode 100644
index 0000000000..ddd3b1bb01
--- /dev/null
+++ b/hw/mips/mips_int.c
@@ -0,0 +1,65 @@
+/*
+ * QEMU MIPS interrupt support
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "hw/hw.h"
+#include "hw/mips_cpudevs.h"
+#include "cpu.h"
+
+static void cpu_mips_irq_request(void *opaque, int irq, int level)
+{
+ CPUMIPSState *env = (CPUMIPSState *)opaque;
+
+ if (irq < 0 || irq > 7)
+ return;
+
+ if (level) {
+ env->CP0_Cause |= 1 << (irq + CP0Ca_IP);
+ } else {
+ env->CP0_Cause &= ~(1 << (irq + CP0Ca_IP));
+ }
+
+ if (env->CP0_Cause & CP0Ca_IP_mask) {
+ cpu_interrupt(env, CPU_INTERRUPT_HARD);
+ } else {
+ cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
+ }
+}
+
+void cpu_mips_irq_init_cpu(CPUMIPSState *env)
+{
+ qemu_irq *qi;
+ int i;
+
+ qi = qemu_allocate_irqs(cpu_mips_irq_request, env, 8);
+ for (i = 0; i < 8; i++) {
+ env->irq[i] = qi[i];
+ }
+}
+
+void cpu_mips_soft_irq(CPUMIPSState *env, int irq, int level)
+{
+ if (irq < 0 || irq > 2) {
+ return;
+ }
+
+ qemu_set_irq(env->irq[irq], level);
+}