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charset=UTF-8 Date: Mon, 01 Jun 2026 11:07:15 +0900 Message-Id: Cc: "Danilo Krummrich" , "Joel Fernandes" , "Timur Tabi" , "Alistair Popple" , "Eliot Courtney" , "Shashank Sharma" , "Zhi Wang" , "David Airlie" , "Simona Vetter" , "Bjorn Helgaas" , "Miguel Ojeda" , "Alex Gaynor" , "Boqun Feng" , "Gary Guo" , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , "Benno Lossin" , "Andreas Hindborg" , "Alice Ryhl" , "Trevor Gross" , , "LKML" Subject: Re: [PATCH v11 03/22] gpu: nova-core: Blackwell: compute PMU-reserved framebuffer size From: "Alexandre Courbot" To: "John Hubbard" References: <20260530030953.740561-1-jhubbard@nvidia.com> <20260530030953.740561-4-jhubbard@nvidia.com> In-Reply-To: <20260530030953.740561-4-jhubbard@nvidia.com> X-ClientProxiedBy: TYCPR01CA0028.jpnprd01.prod.outlook.com (2603:1096:405:1::16) To CH2PR12MB3990.namprd12.prod.outlook.com (2603:10b6:610:28::18) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PR12MB3990:EE_|PH0PR12MB5607:EE_ X-MS-Office365-Filtering-Correlation-Id: 70c741fe-2403-4e68-4fe3-08debf8282a1 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|10070799003|376014|7416014|1800799024|366016|22082099003|18002099003|11063799006|4143699003|56012099006; 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All rights reserved. > + > +use kernel::prelude::*; > + > +use crate::{ > + driver::Bar0, > + fb::hal::FbHal, // > +}; > + > +struct Gh100; > + > +impl FbHal for Gh100 { > + fn read_sysmem_flush_page(&self, bar: &Bar0) -> u64 { > + super::ga100::read_sysmem_flush_page_ga100(bar) > + } > + > + fn write_sysmem_flush_page(&self, bar: &Bar0, addr: u64) -> Result { > + super::ga100::write_sysmem_flush_page_ga100(bar, addr); > + > + Ok(()) > + } > + > + fn supports_display(&self, bar: &Bar0) -> bool { > + super::ga100::display_enabled_ga100(bar) > + } > + > + fn vidmem_size(&self, bar: &Bar0) -> u64 { > + super::ga102::vidmem_size_ga102(bar) > + } > + > + fn pmu_reserved_size(&self) -> u32 { > + super::tu102::pmu_reserved_size_tu102() > + } > + > + fn frts_size(&self) -> u64 { > + super::tu102::frts_size_tu102() > + } > +} As of this patch this HAL is strictly equivalent to GA102's, with the first difference between the two introduced by the "larger non-WPR heap". Could you move the introduction of this HAL to this patch as well?