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cris: improve passing PIC interrupt vector to the CPU

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Instead of accessing cpu interrupt vector directly from PIC, send the
vector value over the qemu_irq.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
This commit is contained in:
Marc-André Lureau 2019-10-17 19:16:53 +02:00
parent 3cff81733d
commit f4f643882d
4 changed files with 10 additions and 29 deletions
Download patch file Download diff file Expand all files Collapse all files

8
target/cris/cpu.c
View file

@ -147,6 +147,14 @@ static void cris_cpu_set_irq(void *opaque, int irq, int level)
CPUState *cs = CPU(cpu);
int type = irq == CRIS_CPU_IRQ ? CPU_INTERRUPT_HARD : CPU_INTERRUPT_NMI;
if (irq == CRIS_CPU_IRQ) {
/*
* The PIC passes us the vector for the IRQ as the value it sends
* over the qemu_irq line
*/
cpu->env.interrupt_vector = level;
}
if (level) {
cpu_interrupt(cs, type);
} else {

1
target/cris/cpu.h
View file

@ -34,6 +34,7 @@
#define CPU_INTERRUPT_NMI CPU_INTERRUPT_TGT_EXT_3
/* CRUS CPU device objects interrupt lines. */
/* PIC passes the vector for the IRQ as the value of it sends over qemu_irq */
#define CRIS_CPU_IRQ 0
#define CRIS_CPU_NMI 1