kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c, branch v5.18.2

drm/amdgpu/gmc: use PCI BARs for APUs in passthrough

2022-03-25T16:40:24+00:00

If the GPU is passed through to a guest VM, use the PCI BAR for CPU FB access rather than the physical address of carve out. The physical address is not valid in a guest. v2: Fix HDP handing as suggested by Michel Reviewed-by: Christian König Reviewed-by: Michel Dänzer Signed-off-by: Alex Deucher

drm/amdgpu: Move reset domain init before calling RREG32

2022-03-15T18:40:49+00:00

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: 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: d0fb18b535679a ("drm/amdgpu: Move reset sem into reset_domain") Signed-off-by: Philip Yang Reviewed-by: Andrey Grodzovsky Signed-off-by: Alex Deucher

drm/amdgpu: only check for _PR3 on dGPUs

2022-03-15T18:34:41+00:00

We don't support runtime pm on APUs. They support more dynamic power savings using clock and powergating. Reviewed-by: Mario Limonciello Tested-by: Mario Limonciello Signed-off-by: Alex Deucher

drm/amdgpu: remove unused gpu_info firmwares

2022-03-02T23:40:07+00:00

These were leftover from bring up and are no longer necessary. The information is available via the IP discovery table. Acked-by: Christian König Signed-off-by: Alex Deucher

drm/amdgpu: move amdgpu_gmc_noretry_set after ip_versions populated

2022-03-02T23:40:06+00:00

otherwise adev->ip_versions is still empty when amdgpu_gmc_noretry_set is called. Reviewed-by: Huang Rui Signed-off-by: Yifan Zhang Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

Merge tag 'amd-drm-next-5.18-2022-02-25' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

2022-03-01T06:19:02+00:00

amd-drm-next-5.18-2022-02-25: amdgpu: - Raven2 suspend/resume fix - SDMA 5.2.6 updates - VCN 3.1.2 updates - SMU 13.0.5 updates - DCN 3.1.5 updates - Virtual display fixes - SMU code cleanup - Harvest fixes - Expose benchmark tests via debugfs - Drop no longer relevant gart aperture tests - More RAS restructuring - W=1 fixes - PSR rework - DP/VGA adapter fixes - DP MST fixes - GPUVM eviction fix - GPU reset debugfs register dumping support - Misc display fixes - SR-IOV fix - Aldebaran mGPU fix - Add module parameter to disable XGMI for testing amdkfd: - IH ring overflow logging fixes - CRIU fixes - Misc fixes Signed-off-by: Dave Airlie From: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20220225183535.5907-1-alexander.deucher@amd.com

drm/amdgpu: Exclude PCI reset method for now.

2022-02-24T22:25:20+00:00

According to my investigation of the state of PCI reset recently it's not working. The reason is due to the fact the kernel PCI code rejects SBR when there are more then one PF under same bridge which we always have (at least AUDIO PF but usually more) and that because SBR will reset all the PFS and devices under the same bridge as you and you cannot assume they support SBR. Once we anble FLR support we can reenable this option as FLR is doable on single PF and doens't have this restriction. Reviewed-by: Alex Deucher Signed-off-by: Andrey Grodzovsky Signed-off-by: Alex Deucher

Merge tag 'drm-misc-next-2022-02-23' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2022-02-24T19:50:18+00:00

drm-misc-next for v5.18: UAPI Changes: Cross-subsystem Changes: - Split out panel-lvds and lvds dt bindings . - Put yes/no on/off disabled/enabled strings in linux/string_helpers.h and use it in drivers and tomoyo. - Clarify dma_fence_chain and dma_fence_array should never include eachother. - Flatten chains in syncobj's. - Don't double add in fbdev/defio when page is already enlisted. - Don't sort deferred-I/O pages by default in fbdev. Core Changes: - Fix missing pm_runtime_put_sync in bridge. - Set modifier support to only linear fb modifier if drivers don't advertise support. - As a result, we remove allow_fb_modifiers. - Add missing clear for EDID Deep Color Modes in drm_reset_display_info. - Assorted documentation updates. - Warn once in drm_clflush if there is no arch support. - Add missing select for dp helper in drm_panel_edp. - Assorted small fixes. - Improve fb-helper's clipping handling. - Don't dump shmem mmaps in a core dump. - Add accounting to ttm resource manager, and use it in amdgpu. - Allow querying the detected eDP panel through debugfs. - Add helpers for xrgb8888 to 8 and 1 bits gray. - Improve drm's buddy allocator. - Add selftests for the buddy allocator. Driver Changes: - Add support for nomodeset to a lot of drm drivers. - Use drm_module_*_driver in a lot of drm drivers. - Assorted small fixes to bridge/lt9611, v3d, vc4, vmwgfx, mxsfb, nouveau, bridge/dw-hdmi, panfrost, lima, ingenic, sprd, bridge/anx7625, ti-sn65dsi86. - Add bridge/it6505. - Create DP and DVI-I connectors in ast. - Assorted nouveau backlight fixes. - Rework amdgpu reset handling. - Add dt bindings for ingenic,jz4780-dw-hdmi. - Support reading edid through aux channel in ingenic. - Add a drm driver for Solomon SSD130x OLED displays. - Add simple support for sharp LQ140M1JW46. - Add more panels to nt35560. Signed-off-by: Dave Airlie From: Maarten Lankhorst Link: https://patchwork.freedesktop.org/patch/msgid/686ec871-e77f-c230-22e5-9e3bb80f064a@linux.intel.com

drm/amdgpu: add reset register dump trace on GPU

2022-02-23T19:26:36+00:00

Dump the list of register values to trace event on GPU reset. Signed-off-by: Somalapuram Amaranath Reviewed-by: Christian König Reviewed-by: Andrey Grodzovsky Signed-off-by: Alex Deucher

drm/amdgpu: drop testing module parameter

2022-02-23T19:02:51+00:00

This test is not particularly useful now that GTT and GART are decoupled in the driver. Reviewed-by: Christian König Signed-off-by: Alex Deucher