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authorMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>2021-09-24 08:37:52 +0100
committerLaurent Vivier <laurent@vivier.eu>2021-09-29 10:45:19 +0200
commit03deab99401a57332d8f3bdba319a41eebc1d666 (patch)
tree180f08b183953f00a2f0628e8daabd7d80442fda /hw/nubus/nubus-bus.c
parent90be1dea5017e518076f2a0d3ad26e158b92a1da (diff)
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nubus: use bitmap to manage available slots
Convert nubus_device_realize() to use a bitmap to manage available slots to allow for future Nubus devices to be plugged into arbitrary slots from the command line using a new qdev "slot" parameter for nubus devices. Update mac_nubus_bridge_init() to only allow slots 0x9 to 0xe on Macintosh machines as documented in "Designing Cards and Drivers for the Macintosh Family". Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210924073808.1041-5-mark.cave-ayland@ilande.co.uk> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'hw/nubus/nubus-bus.c')
-rw-r--r--hw/nubus/nubus-bus.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/hw/nubus/nubus-bus.c b/hw/nubus/nubus-bus.c
index f441080..3cd7534 100644
--- a/hw/nubus/nubus-bus.c
+++ b/hw/nubus/nubus-bus.c
@@ -86,13 +86,14 @@ static void nubus_init(Object *obj)
memory_region_init_io(&nubus->super_slot_io, obj, &nubus_super_slot_ops,
nubus, "nubus-super-slots",
- NUBUS_SUPER_SLOT_NB * NUBUS_SUPER_SLOT_SIZE);
+ (NUBUS_SUPER_SLOT_NB + 1) * NUBUS_SUPER_SLOT_SIZE);
memory_region_init_io(&nubus->slot_io, obj, &nubus_slot_ops,
nubus, "nubus-slots",
NUBUS_SLOT_NB * NUBUS_SLOT_SIZE);
- nubus->current_slot = NUBUS_FIRST_SLOT;
+ nubus->slot_available_mask = MAKE_64BIT_MASK(NUBUS_FIRST_SLOT,
+ NUBUS_SLOT_NB);
}
static void nubus_class_init(ObjectClass *oc, void *data)