artiq/artiq/firmware/libboard_artiq/pcr.rs

45 lines
1.2 KiB
Rust

use board_misoc::spr::*;
bitflags! {
pub struct Counters: u32 {
const LA = SPR_PCMR_LA;
const SA = SPR_PCMR_SA;
const IF = SPR_PCMR_IF;
const DCM = SPR_PCMR_DCM;
const ICM = SPR_PCMR_ICM;
const IFS = SPR_PCMR_IFS;
const LSUS = SPR_PCMR_LSUS;
const BS = SPR_PCMR_BS;
const DTLBM = SPR_PCMR_DTLBM;
const ITLBM = SPR_PCMR_ITLBM;
const DDS = SPR_PCMR_DDS;
const INSTRN = Self::IF.bits;
const MEMORY = Self::LA.bits | Self::SA.bits;
const STALL = Self::DCM.bits | Self::ICM.bits | Self::IFS.bits |
Self::LSUS.bits | Self::BS.bits | Self::DDS.bits ;
const MISS = Self::DTLBM.bits | Self::ITLBM.bits ;
}
}
fn is_valid(index: u32) -> bool {
index < 8 && unsafe { mfspr(SPR_PCMR0 + index) } & SPR_PCMR_CP != 0
}
#[inline]
pub fn setup(index: u32, counters: Counters) {
debug_assert!(is_valid(index));
unsafe {
mtspr(SPR_PCMR0 + index, SPR_PCMR_CISM | SPR_PCMR_CIUM | counters.bits);
mtspr(SPR_PCCR0 + index, 0);
}
}
#[inline]
pub fn read(index: u32) -> u32 {
unsafe {
mfspr(SPR_PCCR0 + index)
}
}