projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| deb2d2ec | 1 | config VGA_ARB |
| 6a108a14 | 2 | bool "VGA Arbitration" if EXPERT |
| deb2d2ec | 3 | default y |
| 1150f254 | 4 | depends on (PCI && !S390) |
| deb2d2ec BH |
5 | help |
| 6 | Some "legacy" VGA devices implemented on PCI typically have the same | |
| 7 | hard-decoded addresses as they did on ISA. When multiple PCI devices | |
| 8 | are accessed at same time they need some kind of coordination. Please | |
| 9 | see Documentation/vgaarbiter.txt for more details. Select this to | |
| 10 | enable VGA arbiter. | |
| 36028f33 MT |
11 | |
| 12 | config VGA_ARB_MAX_GPUS | |
| 13 | int "Maximum number of GPUs" | |
| 14 | default 16 | |
| 15 | depends on VGA_ARB | |
| 16 | help | |
| 17 | Reserves space in the kernel to maintain resource locking for | |
| 18 | multiple GPUS. The overhead for each GPU is very small. | |
| 03a2c4d7 | 19 | |
| 6a9ee8af | 20 | config VGA_SWITCHEROO |
| ca117d6d | 21 | bool "Laptop Hybrid Graphics - GPU switching support" |
| 6a9ee8af DA |
22 | depends on X86 |
| 23 | depends on ACPI | |
| 343d4a79 | 24 | select VGA_ARB |
| 6a9ee8af | 25 | help |
| ca117d6d | 26 | Many laptops released in 2008/9/10 have two GPUs with a multiplexer |
| 6a9ee8af DA |
27 | to switch between them. This adds support for dynamic switching when |
| 28 | X isn't running and delayed switching until the next logoff. This | |
| ca117d6d | 29 | feature is called hybrid graphics, ATI PowerXpress, and Nvidia |
| 6a9ee8af | 30 | HybridPower. |