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] 8 mod macros; 9 10 use crate::gpu::{Architecture, Chipset}; 11 use kernel::prelude::*; 12 13 /* PMC */ 14 15 register!(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 23 impl 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 } 40