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hw/hppa: Disable Artist graphics card on 64-bit machines

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The original Artist graphics used the GSC bus, was often installed in old
32-bit machines (e.g. 715) and can not be used on 64-bit machines.
This is why this patch makes the artist driver dependend on the Lasi chip,
which was never used in a 64-bit machine.

Note that there exists a variant of Artist for the PCI-bus (Visualize-EG PCI).
It has quite some differences in the registers, and would require that we write
a PCI ROM for it, so that Linux and HP-UX would be able to use it.

Instead, for now, users can simply use a standard VGA or ATI PCI graphics card
on Linux.  This can be enabled on the command line with "-device ati-vga" or
"-device VGA".  If the "-nographic" option is omitted, a PCI OCHI controller
with USB keyboard and USB mouse will be added automatically.

This fixes graphics support on 64-bit hppa machines and allows us to boot up a
64-bit Linux installation with VGA graphics.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20260330211859.19317-3-deller@kernel.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
Helge Deller
2026-03-30 23:18:49 +02:00
committed by Philippe Mathieu-Daudé
parent 508a870550
commit 6a0e2db073
1 changed files with 2 additions and 1 deletions
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3
hw/hppa/machine.c
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@@ -384,7 +384,8 @@ static void machine_HP_common_init_tail(MachineState *machine, PCIBus *pci_bus,
SysBusDevice *s;
/* Graphics setup. */
if (machine->enable_graphics && vga_interface_type != VGA_NONE) {
if (lasi_dev && machine->enable_graphics &&
vga_interface_type != VGA_NONE) {
dev = qdev_new("artist");
s = SYS_BUS_DEVICE(dev);
bool disabled = object_property_get_bool(OBJECT(dev), "disable", NULL);