linux-next.git/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c, branch master

drm/amdgpu: add support for GC IP version 11.7.1

2026-07-01T15:54:51+00:00

Initialize GC IP 11_7_1 Signed-off-by: Granthali Vinodkumar Dhandar Reviewed-by: Mario Limonciello Signed-off-by: Alex Deucher

drm/amdgpu: add support for GC IP version 11.7.0

2026-07-01T15:54:33+00:00

Initialize GC IP 11_7_0 Signed-off-by: Granthali Vinodkumar Dhandar Reviewed-by: Mario Limonciello Signed-off-by: Alex Deucher

drm/amdgpu: don't free standalone ip_discovery sysfs in sysfs_fini

2026-07-01T15:19:10+00:00

The standalone_mode ip_discovery sysfs hierarchy is tied to the PCI device lifetime and tracked in early_ip_discovery_list. It is torn down only by amdgpu_discovery_sysfs_early_fini() on driver unbind, which is why amdgpu_discovery_fini() already guards its teardown with !standalone_mode. Commit 7de02fe95312 ("drm/amdgpu: clean up discovery and preempt sysfs entries on shutdown") added an unconditional amdgpu_discovery_sysfs_fini() call in amdgpu_device_sys_interface_fini(), which runs during amdgpu_device_fini_hw() on every unbind/reload. On reload this freed the PCI-device-owned ip_top via kobject_put()->ip_disc_release()->kfree(), leaving a dangling pointer in early_ip_discovery_list. The subsequent amdgpu_discovery_sysfs_early_fini() then dereferenced and put the freed object, causing a use-after-free and double-free, and prematurely destroyed the sysfs that was meant to persist across reloads. Make amdgpu_discovery_sysfs_fini() skip standalone_mode objects so the invariant is centralized at the teardown site and the new call site cannot free the PCI-device-owned ip_top. Teardown of standalone sysfs remains the sole responsibility of amdgpu_discovery_sysfs_early_fini(). Fixes: 7de02fe95312 ("drm/amdgpu: clean up discovery and preempt sysfs entries on shutdown") Acked-by: Alex Deucher Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher

drm/amdgpu: clean up discovery and preempt sysfs entries on shutdown

2026-06-17T20:30:15+00:00

Fix a sysfs duplication error when reinitializing the device: sysfs: cannot create duplicate filename '.../ip_discovery' kobject_add_internal failed for ip_discovery with -EEXIST ... Failed to create device file mem_info_preempt_used (-17) The failure is caused by stale sysfs entries not being removed during device teardown, leading to -EEXIST when the driver is reprobed. In particular: - amdgpu_discovery sysfs kobjects were not fully torn down early enough, and ip_top remained non-NULL after cleanup - the preempt manager sysfs attribute was removed only conditionally and not during the common hw fini path Fix this by: - making amdgpu_discovery_sysfs_fini() externally visible and clearing adev->discovery.ip_top to prevent reuse - calling amdgpu_discovery_sysfs_fini() and amdgpu_preempt_mgr_sysfs_fini() from amdgpu_device_sys_interface_fini() This ensures sysfs state is fully cleaned up before reprobe and avoids duplicate kobject/file creation. Cc: Christian König Cc: Alex Deucher Signed-off-by: Geoffrey McRae Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/amdgpu: enumerate UMSCH HW IP

2026-06-17T20:24:20+00:00

This part enumerates a UMSCH block under hardware id (22) at version 2.2.0 rather than under VCN. Add the UMSCH hardware id, an IP enum slot, and the discovery name/map entries so it is recognized. No IP block is wired up yet; this only makes the IP discoverable. The multimedia IP setup assumed VCN/VCE/UVD was always present; handle the case where it is absent so init does not fail with -EINVAL. Acked-by: Alex Deucher Reviewed-by: Boyuan Zhang Signed-off-by: Ruijing Dong Signed-off-by: Alex Deucher

drm/amdgpu: Export ip_discovery sysfs on probe failure

2026-06-17T20:23:22+00:00

When driver probe fails (missing firmware, unsupported hardware, etc.), the entire device is torn down including the ip_discovery sysfs folder, preventing users from identifying what hardware is present. Export ip_discovery sysfs even when probe fails by creating it early in the probe flow and tying its lifetime to the PCI device rather than the driver. The sysfs folder persists across probe failures and module reloads, but is cleaned up on driver unbind. Acked-by: Alex Deucher Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher

drm/amdgpu/vpe: add vpe v2.2.0 support

2026-06-03T17:50:46+00:00

This initializes VPE IP version 2.2.0 Signed-off-by: Caden Chien Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: Add support for SMU 15.0.5

2026-06-03T17:50:30+00:00

Add SMU 15_0_5 and SMUIO 15_0_5 Signed-off-by: Pratik Vishwakarma Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: add support for HDP IP version 6.4.0

2026-06-03T17:50:26+00:00

This initializes HDP IP version 6.4.0. Signed-off-by: Pratik Vishwakarma Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: add support for IH IP version 6.4.0

2026-06-03T17:50:24+00:00

This initializes IH IP version 6.4.0. Signed-off-by: Pratik Vishwakarma Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher