56 lines · 1.7 KB · Rust
RawDownload
// SPDX-License-Identifier: GPL-2.0// SPDX-FileCopyrightText: Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved. use kernel::prelude::*; use crate::{    driver::Bar0,    gpu::{        Architecture,        Chipset, //    },}; mod ga100;mod ga102;mod gb100;mod gb202;mod gh100;mod tu102; pub(crate) trait FbHal {    /// Returns the address of the currently-registered sysmem flush page.    fn read_sysmem_flush_page(&self, bar: Bar0<'_>) -> u64;     /// Register `addr` as the address of the sysmem flush page.    ///    /// This might fail if the address is too large for the receiving register.    fn write_sysmem_flush_page(&self, bar: Bar0<'_>, addr: u64) -> Result;     /// Returns `true` is display is supported.    fn supports_display(&self, bar: Bar0<'_>) -> bool;     /// Returns the VRAM size, in bytes.    fn vidmem_size(&self, bar: Bar0<'_>) -> u64;     /// Returns the amount of VRAM to reserve for the PMU.    fn pmu_reserved_size(&self) -> u32;     /// Returns the non-WPR heap size for this chipset, in bytes.    fn non_wpr_heap_size(&self) -> u64;     /// Returns the FRTS size, in bytes.    fn frts_size(&self) -> u64;} /// Returns the HAL corresponding to `chipset`.pub(super) fn fb_hal(chipset: Chipset) -> &'static dyn FbHal {    match chipset.arch() {        Architecture::Turing => tu102::TU102_HAL,        Architecture::Ampere if chipset == Chipset::GA100 => ga100::GA100_HAL,        Architecture::Ampere | Architecture::Ada => ga102::GA102_HAL,        Architecture::Hopper => gh100::GH100_HAL,        Architecture::BlackwellGB10x => gb100::GB100_HAL,        Architecture::BlackwellGB20x => gb202::GB202_HAL,    }}