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Mon, 22 Jun 2026 12:45:16 -0700 From: Zhi Wang To: , CC: , , , , , , , , , , , , , , , , , , , , , , , , , , Zhi Wang Subject: [PATCH v2 6/7] gpu: nova-core: set RMSetSriovMode when vGPU is enabled Date: Mon, 22 Jun 2026 22:43:52 +0300 Message-ID: <20260622194353.1308872-7-zhiw@nvidia.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260622194353.1308872-1-zhiw@nvidia.com> References: <20260622194353.1308872-1-zhiw@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL6PEPF0001AB73:EE_|DS7PR12MB6333:EE_ X-MS-Office365-Filtering-Correlation-Id: 4f9d5b13-7741-48e5-d891-08ded096dd07 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|36860700016|82310400026|23010399003|376014|1800799024|18002099003|22082099003|11063799006|3023799007|56012099006; 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Set "RMSetSriovMode" to 1 when nova-core is loading the GSP firmware and initializing the GSP registry objects, if vGPU is enabled. Signed-off-by: Zhi Wang --- drivers/gpu/nova-core/gsp/boot.rs | 2 +- drivers/gpu/nova-core/gsp/commands.rs | 16 ++++++++++++++-- 2 files changed, 15 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/nova-core/gsp/boot.rs b/drivers/gpu/nova-core/gsp/boot.rs index 55ea8e38aa79..c607081e8242 100644 --- a/drivers/gpu/nova-core/gsp/boot.rs +++ b/drivers/gpu/nova-core/gsp/boot.rs @@ -94,7 +94,7 @@ pub(crate) fn boot( self.cmdq .send_command_no_wait(bar, commands::SetSystemInfo::new(pdev, chipset))?; self.cmdq - .send_command_no_wait(bar, commands::SetRegistry::new()?)?; + .send_command_no_wait(bar, commands::SetRegistry::new(ctx.vgpu)?)?; hal.post_boot(&self, &mut ctx, &gsp_fw)?; diff --git a/drivers/gpu/nova-core/gsp/commands.rs b/drivers/gpu/nova-core/gsp/commands.rs index 3dccb012a37e..bf2b569f5578 100644 --- a/drivers/gpu/nova-core/gsp/commands.rs +++ b/drivers/gpu/nova-core/gsp/commands.rs @@ -33,6 +33,7 @@ }, }, sbuffer::SBufferIter, + vgpu::VgpuManager, }; /// The `GspSetSystemInfo` command. @@ -70,8 +71,8 @@ pub(crate) struct SetRegistry { } impl SetRegistry { - /// Creates a new `SetRegistry` command, using a set of hardcoded entries. - pub(crate) fn new() -> Result { + /// Creates a new `SetRegistry` command. + pub(crate) fn new(vgpu: &VgpuManager) -> Result { let mut entries = KVec::new(); // RMSecBusResetEnable - enables PCI secondary bus reset. @@ -103,6 +104,17 @@ pub(crate) fn new() -> Result { GFP_KERNEL, )?; + if vgpu.enabled() { + // RMSetSriovMode - required when vGPU is enabled. + entries.push( + RegistryEntry { + key: "RMSetSriovMode", + value: 1, + }, + GFP_KERNEL, + )?; + } + Ok(Self { entries }) } } -- 2.51.0