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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?mMsF+4aGSuAzVzlcgREuqyuAxDaZkbr5Shnxgw24UrjzsLrDHt0YoajSoSwG?= =?us-ascii?Q?uK+QA1X3mx+NNQ6oFo+8xR296gyj6RwSddoFPvd08k7h0wfP+Pz3eZzKocAM?= =?us-ascii?Q?8MnoZrmRzASWHd6ruFVuU7KYGn2ySN4SxguXTwSDOZSZVZVrR9QIBAsxALjm?= =?us-ascii?Q?M2uk5Q+NNAMBnv/GinDTPidiWtZJiaDRSecshznWBzi4f1UJTYXUfBIplZ79?= =?us-ascii?Q?GPTrUgKQ9Vc+bWEZb/vL2JVZLY9u8K7BC01PsYbKBXKVoDvSBSgKNJHTd6JV?= =?us-ascii?Q?S0hOyPnlLyRzdHqndGhoNNnTaOWyzdt3dqTQPoPfOnUfn/DVdktxpY6Amgzw?= =?us-ascii?Q?In87hJkSXcqNN4s5KcR1DPx5DtLCPNeOFtuoPgf9O6wILp0cZy4AKSwV/Vkf?= =?us-ascii?Q?NNQx2uaqfPFqsMo+XOYU0CD1+jRdI2XTqXK83UiBqzes1Fyq3ac1Ih/oSB8W?= =?us-ascii?Q?tar0WFPKblr/pDB5D7s06gSZJwjavjyh8MC+3nWvyExWNltcVLQrpdZB8aaL?= =?us-ascii?Q?rBNGFSyMzCo2Dk3Q62RXUhVE8/VH8Ry1a7JVO7Ak2hgQPGtfy62gPBOPYINw?= =?us-ascii?Q?RXiJBYPe7c8zKYiR6GfWWt+yEW/p3/rMfkaxB4czFnRz7ZuPAGa74P2/rZir?= =?us-ascii?Q?BUfGd71dPvFl/+k8FbTl4qMoVanB7pOFJqjEBTOuWDPPKIrIW0bOHKcJJ19H?= =?us-ascii?Q?Z8n6FCX7qg8y8eFNNZwn9kAhpTyRSPw2fs5HGaa6q6U9r/JAKDSqRBz9QzjT?= =?us-ascii?Q?rd7t36eBvcszkuZ1uzNcdPgHxLhcV78b6o+/CxGQyJ/CjnjFYp/Dn/6A5kLK?= =?us-ascii?Q?9LWghGFRkcGrm1xpomdqLEdXwuz93plY/QqUtwSWxtG85i3Xe6c8ojSTd5+v?= =?us-ascii?Q?D1av+I2uV74DTu30/RR5TjngopghDaT3UJDokUijYR7C1ggAPUOwMwtmgt2O?= =?us-ascii?Q?neQqsRHocHCHjAvR9ZLSoMAvghsiWuc5Le5LzBbSvkkXaGfqmfz6q4A4ZKLR?= =?us-ascii?Q?VLcc2lma2hfZxNMpmhnOAurKPSKpDEb/tVIsNvPKZ3JxhrTrk5ksmq080XOI?= =?us-ascii?Q?QGmrPaF/zKA3PHh6kpmCeHgfnhRDV/DnHshH4uMGn+j5ZoQF+KWWThR48oUN?= =?us-ascii?Q?1woCWVic4YZFly3cnlzZ8qiF+/J9A5XxaN5H6D1N9RXfblq6/YZDTyhlqsOv?= =?us-ascii?Q?qP3cnwdn6Le6vRkG1j7jyRRJ2bPvWMAVRNRF8gTANScAmCfq7QiI9A/NYvKn?= =?us-ascii?Q?9PRK+/t9wPoyzYx8lzTb2YsnVJ+RFI71cVbUO5e1cQnomX9qU6CEcu6w1OFS?= =?us-ascii?Q?WJpgXKEU5EW69n1HeyKx+QgZbD1jPubsQxPQzoUqQaMcJRc1u8IEPyQcoaYH?= =?us-ascii?Q?zxxyn95Z+e8p8szE5uC2tI1QNVrO4+9SxyOSujmC3aKRYs3RoxTfAx8Mm5ir?= =?us-ascii?Q?pOBMk6EhDY2+sYFK3b218qCc/j+3x8qe6OTH7LR1JwQAXdnebryS/MhBM1s0?= =?us-ascii?Q?hdDNHQ023p5jr98fcYcQajTvIZpNefYp9/QPkJygngbCsqq4Kp6YhShAt+Qg?= =?us-ascii?Q?EI53uBWiQYxIjRd+1CKKmQ+ojhMKEamefAxWkwEmacacxcr0NhKj0M9YstdE?= =?us-ascii?Q?+OnR2veJWJDePZz+QjeMOqeQ0gnsT5SMaNaumtE42GI06ea+ZLU9Tg4Qq7aU?= =?us-ascii?Q?QkAVrHGmCzzcqUQtP4+XkM8X+QDqwrjvqMie8sAAwHnHimv+plja1rWegbgU?= =?us-ascii?Q?mkqYDO4+vA=3D=3D?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 3c752e3d-126a-4bf1-9253-08deb86b4a69 X-MS-Exchange-CrossTenant-AuthSource: DM3PR12MB9416.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 May 2026 01:33:28.4403 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: CNdJh1jScQau2HKvtozKJsA+6nYnpjUWZ/kzSZ5fo5gO+rjCuNLOBk1M5o5c/aA/xm1TaWPxiVjX8M3uDoQ/Gg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY3PR12MB9580 perf_allow_cpu() and perf_allow_tracepoint() are static inline and reach into a non-exported sysctl, so modular drivers that want the same permission model as system-wide perf end up writing partial copies of this code. Let's instead export these properly so that modules can call them. Commit 5e9629d0ae97 ("drivers/perf: arm_spe: Use perf_allow_kernel() for permissions") already moved perf_allow_kernel() out of line and exported it. Patch 1 does the same for the other two, and provides !CONFIG_PERF_EVENTS stubs so the helpers stay callable when perf is compiled out. Patch 2 converts drm/xe's OA and EU stall paths to call perf_allow_cpu(), so xe observation now respects the system perf_event_paranoid policy and consults the LSM hook. Sites that have already configured an LSM perf policy or tuned the paranoid sysctl will now see those settings honored on xe as well. Changes since v1: * Patch 1: add !CONFIG_PERF_EVENTS stubs that fall back to perfmon_capable() so the helpers remain callable when perf is compiled out. The sashiko-bot AI review caught that the v1 code would otherwise fail to build with PERF_EVENTS=n. John Hubbard (2): perf/core: out-of-line and export perf_allow_cpu/tracepoint() drm/xe: gate observation streams with perf_allow_cpu() drivers/gpu/drm/xe/xe_eu_stall.c | 5 +++-- drivers/gpu/drm/xe/xe_oa.c | 25 +++++++++++++--------- drivers/gpu/drm/xe/xe_observation.c | 32 ++++++++++++++++++++++++----- drivers/gpu/drm/xe/xe_observation.h | 3 +-- include/linux/perf_event.h | 31 ++++++++++++++-------------- kernel/events/core.c | 18 ++++++++++++++++ 6 files changed, 79 insertions(+), 35 deletions(-) base-commit: 79bd2dded182b1d458b18e62684b7f82ffc682e5 -- 2.54.0