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1// SPDX-License-Identifier: GPL-2.0
2
3// Required to retain the original register names used by OpenRM, which are all capital snake case
4// but are mapped to types.
5#![allow(non_camel_case_types)]
6
7#[macro_use]
8mod macros;
9
10use crate::gpu::{Architecture, Chipset};
11use kernel::prelude::*;
12
13/* PMC */
14
15register!(NV_PMC_BOOT_0 @ 0x00000000, "Basic revision information about the GPU" {
16 3:0 minor_revision as u8, "Minor revision of the chip";
17 7:4 major_revision as u8, "Major revision of the chip";
18 8:8 architecture_1 as u8, "MSB of the architecture";
19 23:20 implementation as u8, "Implementation version of the architecture";
20 28:24 architecture_0 as u8, "Lower bits of the architecture";
21});
22
23impl NV_PMC_BOOT_0 {
24 /// Combines `architecture_0` and `architecture_1` to obtain the architecture of the chip.
25 pub(crate) fn architecture(self) -> Result<Architecture> {
26 Architecture::try_from(
27 self.architecture_0() | (self.architecture_1() << Self::ARCHITECTURE_0.len()),
28 )
29 }
30
31 /// Combines `architecture` and `implementation` to obtain a code unique to the chipset.
32 pub(crate) fn chipset(self) -> Result<Chipset> {
33 self.architecture()
34 .map(|arch| {
35 ((arch as u32) << Self::IMPLEMENTATION.len()) | self.implementation() as u32
36 })
37 .and_then(Chipset::try_from)
38 }
39}