343d4a79fd
Since Matthew's changes we have to select arbitration. Reported-by: devh on #radeon Signed-off-by: Dave Airlie <airlied@redhat.com>
31 lines
1.0 KiB
Plaintext
31 lines
1.0 KiB
Plaintext
config VGA_ARB
|
|
bool "VGA Arbitration" if EXPERT
|
|
default y
|
|
depends on PCI
|
|
help
|
|
Some "legacy" VGA devices implemented on PCI typically have the same
|
|
hard-decoded addresses as they did on ISA. When multiple PCI devices
|
|
are accessed at same time they need some kind of coordination. Please
|
|
see Documentation/vgaarbiter.txt for more details. Select this to
|
|
enable VGA arbiter.
|
|
|
|
config VGA_ARB_MAX_GPUS
|
|
int "Maximum number of GPUs"
|
|
default 16
|
|
depends on VGA_ARB
|
|
help
|
|
Reserves space in the kernel to maintain resource locking for
|
|
multiple GPUS. The overhead for each GPU is very small.
|
|
|
|
config VGA_SWITCHEROO
|
|
bool "Laptop Hybrid Graphics - GPU switching support"
|
|
depends on X86
|
|
depends on ACPI
|
|
select VGA_ARB
|
|
help
|
|
Many laptops released in 2008/9/10 have two GPUs with a multiplexer
|
|
to switch between them. This adds support for dynamic switching when
|
|
X isn't running and delayed switching until the next logoff. This
|
|
feature is called hybrid graphics, ATI PowerXpress, and Nvidia
|
|
HybridPower.
|