Philip Yang 436afdfa35 drm/amdgpu: Move reset domain init before calling RREG32 ... amdgpu_detect_virtualization reads register, amdgpu_device_rreg access adev->reset_domain->sem if kernel defined CONFIG_LOCKDEP, below is the random boot hang backtrace on Vega10. It may get random NULL pointer access backtrace if amdgpu_sriov_runtime is true too. Move amdgpu_reset_create_reset_domain before calling to RREG32. BUG: kernel NULL pointer dereference, address: #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI Workqueue: events work_for_cpu_fn RIP: 0010:down_read_trylock+0x13/0xf0 Call Trace: <TASK> amdgpu_device_skip_hw_access+0x38/0x80 [amdgpu] amdgpu_device_rreg+0x1b/0x170 [amdgpu] amdgpu_detect_virtualization+0x73/0x100 [amdgpu] amdgpu_device_init.cold.60+0xbe/0x16b1 [amdgpu] ? pci_bus_read_config_word+0x43/0x70 amdgpu_driver_load_kms+0x15/0x120 [amdgpu] amdgpu_pci_probe+0x1a1/0x3a0 [amdgpu] Fixes: d0fb18b535 ("drm/amdgpu: Move reset sem into reset_domain") Signed-off-by: Philip Yang <Philip.Yang@amd.com> Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>		2022-03-15 14:40:49 -04:00
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acp
amdgpu	drm/amdgpu: Move reset domain init before calling RREG32	2022-03-15 14:40:49 -04:00
amdkfd	drm/amdkfd: CRIU export dmabuf handles for GTT BOs	2022-03-15 14:25:17 -04:00
display	drm/amdgpu/display: enable scatter/gather display for DCN 3.1.6	2022-03-15 14:34:16 -04:00
include	drm/amdgpu: config HDP_MISC_CNTL.READ_BUFFER_WATERMARK	2022-02-24 17:24:43 -05:00
pm	drm/amd/pm: use pm mutex to protect ecc info table	2022-03-15 14:34:34 -04:00