| Message ID | 20211013212132.31519-3-mark.cave-ayland@ilande.co.uk |
|---|---|
| State | New |
| Headers | show |
| Series | q800: GLUE updates for A/UX mode | expand |
Le 13/10/2021 à 23:21, Mark Cave-Ayland a écrit : > On a Quadra 800 machine Linux sets via_alt_mapping to 1 and clears port B bit 6 to > ensure that the VIA1 IRQ is delivered at level 6 rather than level 1. Even though > QEMU doesn't yet emulate this behaviour, Linux still installs the VIA1 level 1 IRQ > handler regardless of the value of via_alt_mapping which is why the kernel has been > able to boot until now. > > Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> > --- > hw/m68k/q800.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/hw/m68k/q800.c b/hw/m68k/q800.c > index fd4855047e..15f3067811 100644 > --- a/hw/m68k/q800.c > +++ b/hw/m68k/q800.c > @@ -284,7 +284,7 @@ static void q800_init(MachineState *machine) > sysbus = SYS_BUS_DEVICE(via1_dev); > sysbus_realize_and_unref(sysbus, &error_fatal); > sysbus_mmio_map(sysbus, 1, VIA_BASE); > - sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(glue, 0)); > + sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(glue, 5)); > > adb_bus = qdev_get_child_bus(via1_dev, "adb.0"); > dev = qdev_new(TYPE_ADB_KEYBOARD); > Reviewed-by: Laurent Vivier <laurent@vivier.eu>
diff --git a/hw/m68k/q800.c b/hw/m68k/q800.c index fd4855047e..15f3067811 100644 --- a/hw/m68k/q800.c +++ b/hw/m68k/q800.c @@ -284,7 +284,7 @@ static void q800_init(MachineState *machine) sysbus = SYS_BUS_DEVICE(via1_dev); sysbus_realize_and_unref(sysbus, &error_fatal); sysbus_mmio_map(sysbus, 1, VIA_BASE); - sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(glue, 0)); + sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(glue, 5)); adb_bus = qdev_get_child_bus(via1_dev, "adb.0"); dev = qdev_new(TYPE_ADB_KEYBOARD);
On a Quadra 800 machine Linux sets via_alt_mapping to 1 and clears port B bit 6 to ensure that the VIA1 IRQ is delivered at level 6 rather than level 1. Even though QEMU doesn't yet emulate this behaviour, Linux still installs the VIA1 level 1 IRQ handler regardless of the value of via_alt_mapping which is why the kernel has been able to boot until now. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> --- hw/m68k/q800.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)