wireguard-linux/drivers/gpu/drm/amd/pm/inc, branch stable

drm/amd/pm: fix torn gpu metrics reads

2026-07-28T22:54:12Z

amdgpu_dpm_get_gpu_metrics() returns a pointer to the shared metrics cache after dropping adev->pm.mutex. The sysfs path then copies from that pointer. Another reader can refresh the cache in place during the copy and return a snapshot containing data from two generations. Pass caller-provided storage through the DPM interface and copy the metrics while the mutex is held. This keeps the cache pointer private and makes each sysfs read observe one complete sample. Fixes: 25c933b1c4fc ("drm/amd/powerplay: add new sysfs interface for retrieving gpu metrics(V2)") Signed-off-by: Yang Wang Reviewed-by: Kenneth Feng Signed-off-by: Alex Deucher

drm/amd/pm: fix pptable use-after-free

2026-07-28T22:52:54Z

amdgpu_dpm_get_pp_table() returns a pointer to a driver-owned power table after dropping adev->pm.mutex. The sysfs path then copies from that pointer. A concurrent pp_table write can replace and free the allocation during the copy, causing a use-after-free. Change the DPM interface to copy into caller-provided storage while the mutex is held. Keep the size-only query for attribute discovery without exposing the driver-owned pointer. Fixes: 1684d3ba4885 ("drm/amd/amdgpu: change pptable output format from ASCII to binary") Signed-off-by: Yang Wang Reviewed-by: Kenneth Feng Signed-off-by: Alex Deucher

drm/amd/pm: retire legacy smu ras driver framework

2026-07-08T18:20:29Z

Remove the legacy smu ras driver framework Reviewed-by: Hawking Zhang Signed-off-by: Ce Sun Signed-off-by: Alex Deucher

drm/amd/pm: add smu ras driver framework

2025-11-04T16:53:58Z

add functions to get smu ras driver Signed-off-by: Gangliang Xie Signed-off-by: Yang Wang Reviewed-by: Tao Zhou Signed-off-by: Alex Deucher

drm/amdgpu: Drop PMFW RLC notifier from amdgpu_device_suspend()

2025-11-04T16:52:48Z

For S3 on vangogh, PMFW needs to be notified before the driver powers down RLC. This already happens in smu_disable_dpms() so drop the superfluous call in amdgpu_device_suspend(). Co-developed-by: Mario Limonciello (AMD) Reviewed-by: Alex Deucher Signed-off-by: Mario Limonciello (AMD) Signed-off-by: Alex Deucher

drm/amd: Stop overloading power limit with limit type

2025-10-13T18:14:35Z

When passed around internally the upper 8 bits of power limit include the limit type. This is non-obvious without digging into the nuances of each function. Instead pass the limit type as an argument to all applicable layers. Reviewed-by: Lijo Lazar Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher

drm/amd/pm: place the smu 13.0.0 pptable header into the correct folder

2025-09-23T14:22:16Z

Place the smu 13.0.0 pptable header in the correct folder Signed-off-by: Yang Wang Reviewed-by: Mangesh Gadre Signed-off-by: Alex Deucher

drm/amd/pm: Remove unneeded legacy DPM related code.

2025-09-15T20:52:50Z

This code isn't needed anymore as we collect the same information into pm_display_cfg instead. Signed-off-by: Timur Kristóf Signed-off-by: Alex Deucher

drm/amd/pm: Use pm_display_cfg in legacy DPM (v2)

2025-09-15T20:52:46Z

This commit is necessary for DC to function well with chips that use the legacy power management code, ie. SI and KV. Communicate display information from DC to the legacy PM code. Currently DC uses pm_display_cfg to communicate power management requirements from the display code to the DPM code. However, the legacy (non-DC) code path used different fields and therefore could not take into account anything from DC. Change the legacy display code to fill the same pm_display_cfg struct as DC and use the same in the legacy DPM code. To ease review and reduce churn, this commit does not yet delete the now unneeded code, that is done in the next commit. v2: Rebase. Fix single_display in amdgpu_dpm_pick_power_state. Signed-off-by: Timur Kristóf Signed-off-by: Alex Deucher

drm/amd/pm: Add VCN reset support check capability

2025-08-15T17:04:25Z

This change introduces infrastructure to check whether VCN reset is supported by the SMU firmware. Key changes include: 1. Added new functions to query VCN reset support: - amdgpu_dpm_reset_vcn_is_supported() - smu_reset_vcn_is_supported() - pptable_funcs.reset_vcn_is_supported callback 2. Implemented proper locking in the DPM layer with mutex protection 3. Maintained consistency with existing SDMA reset support checks The new capability allows callers to check for VCN reset support before attempting the operation, preventing unnecessary attempts on unsupported platforms. v2: clean up debug info(Alex) Suggested-by: Alex Deucher Signed-off-by: Ruili Ji Signed-off-by: Jesse Zhang Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher