Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2
3use kernel::prelude::*;
4
5use crate::{
6 driver::Bar0,
7 gpu::Chipset, //
8};
9
10mod ga100;
11mod ga102;
12mod tu102;
13
14pub(crate) trait FbHal {
15 /// Returns the address of the currently-registered sysmem flush page.
16 fn read_sysmem_flush_page(&self, bar: &Bar0) -> u64;
17
18 /// Register `addr` as the address of the sysmem flush page.
19 ///
20 /// This might fail if the address is too large for the receiving register.
21 fn write_sysmem_flush_page(&self, bar: &Bar0, addr: u64) -> Result;
22
23 /// Returns `true` is display is supported.
24 fn supports_display(&self, bar: &Bar0) -> bool;
25
26 /// Returns the VRAM size, in bytes.
27 fn vidmem_size(&self, bar: &Bar0) -> u64;
28}
29
30/// Returns the HAL corresponding to `chipset`.
31pub(super) fn fb_hal(chipset: Chipset) -> &'static dyn FbHal {
32 use Chipset::*;
33
34 match chipset {
35 TU102 | TU104 | TU106 | TU117 | TU116 => tu102::TU102_HAL,
36 GA100 => ga100::GA100_HAL,
37 GA102 | GA103 | GA104 | GA106 | GA107 | AD102 | AD103 | AD104 | AD106 | AD107 => {
38 ga102::GA102_HAL
39 }
40 }
41}