Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates
 216.228.117.161 as permitted sender) receiver=protection.outlook.com;
 client-ip=216.228.117.161; helo=mail.nvidia.com; pr=C
From: Timur Tabi <ttabi@nvidia.com>
To: Lyude Paul <lyude@redhat.com>, Dave Airlie <airlied@redhat.com>,
	<nouveau@lists.freedesktop.org>
Subject: [PATCH 4/6] drm/nouveau/gsp: require GSP-RM for GA100 support
Date: Tue, 7 Apr 2026 14:21:20 -0500
Message-ID: <20260407192122.3055293-5-ttabi@nvidia.com>
In-Reply-To: <20260407192122.3055293-1-ttabi@nvidia.com>
References: <20260407192122.3055293-1-ttabi@nvidia.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: 
	gGzv8yTcYO3+xlYXdC91SkrFvMfpKxDymFjCyTeqJ4V3dq0Ro42inafIbJSn4FglS6eQAeWx+UzywjWAOLqID0tMxp9QmqE4EqrlAn1x8FAXSV3tqgHPzUEqE0hmh2rq9xsZRY7JNRm78adjiVers1pUQMzmbhlXSO3rDOqbrAXurdlqCIUneE8lhwJ/W8Yr+r8oFRWvEPjL6RWYFqD/M6mXCplSSWkouunXFECyzplfa1mH+h8oZT7aoRX7S9h4OuZjACpY+JDgXmAHS2mVKqTKP/Hx65y2q0kBE/j74h9ycXTprfmC0ooLun2cBUKmZYSbseVv/RJ5EJVortzxuMkRGuwHFusPBnhTCmNuEkktI7l1/Y/r9hDaX8ASJhrM7ZK22NJXPd1g3vxHYJrctkWjNv64dq+GbO0y54FvmM4xDe/DULXy8gbnntJ6eHnc
X-OriginatorOrg: Nvidia.com
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Apr 2026 19:21:48.3284
 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: 
 7431d999-aebf-4b3d-8fa9-08de94daea1d
X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a
X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: 
 TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com]
X-MS-Exchange-CrossTenant-AuthSource: 
	DS2PEPF00003447.namprd04.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Anonymous
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL3PR12MB6596
Message-ID-Hash: 4GYBQXU4B3IFG33OU6XPJTS35E4X7PXS
X-Message-ID-Hash: 4GYBQXU4B3IFG33OU6XPJTS35E4X7PXS
X-MailFrom: ttabi@nvidia.com
X-Mailman-Rule-Hits: member-moderation
X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency;
 loop; banned-address
X-Mailman-Version: 3.3.8
Precedence: list
List-Id: Nouveau development list <nouveau.lists.freedesktop.org>
Archived-At: 
 <https://lists.freedesktop.org/hyperkitty/list/nouveau@lists.freedesktop.org/message/4GYBQXU4B3IFG33OU6XPJTS35E4X7PXS/>
Archived-At: 
 <https://lore.freedesktop.org/20260407192122.3055293-5-ttabi@nvidia.com/>
List-Archive: 
 <https://lists.freedesktop.org/hyperkitty/list/nouveau@lists.freedesktop.org/>
List-Archive: <https://lore.freedesktop.org/nouveau>
List-Help: <mailto:nouveau-request@lists.freedesktop.org?subject=help>
List-Owner: <mailto:nouveau-owner@lists.freedesktop.org>
List-Post: <mailto:nouveau@lists.freedesktop.org>
List-Subscribe: <mailto:nouveau-join@lists.freedesktop.org>
List-Unsubscribe: <mailto:nouveau-leave@lists.freedesktop.org>

Nouveau supports Turing and Ampere GPUs with or without GSP-RM.
Support without GSP-RM is mostly academic, since GSP-RM is
needed to run the GPU at full clocks.  It is also the default
mode for these GPUs.

GA100 is a special case, however.  The current code has some support
for running GA100 without GSP-RM, but several features are missing.
More importantly, some required firmware images like ucode_ahesasc.bin
are not available and would need to be provided by Nvidia.

To prevent Nouveau from even trying to boot on GA100 without GSP-RM,
remove the non-GSP fallback option in the ga100_gsps[] array.

Signed-off-by: Timur Tabi <ttabi@nvidia.com>
---
 drivers/gpu/drm/nouveau/nvkm/subdev/gsp/ga100.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/ga100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/ga100.c
index fdd820eeef81..cc57de99e59e 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/ga100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/ga100.c
@@ -59,7 +59,6 @@ static struct nvkm_gsp_fwif
 ga100_gsps[] = {
 	{  1, tu102_gsp_load, &ga100_gsp, &r570_rm_tu102, "570.144" },
 	{  0, tu102_gsp_load, &ga100_gsp, &r535_rm_tu102, "535.113.01" },
-	{ -1, gv100_gsp_nofw, &gv100_gsp },
 	{}
 };
 
-- 
2.53.0