This patch set enables BACO (Bus Active Chip Off) for power savings on VI+ asics. Similar to PowerXpress and Hybrid Graphics (PX/HG) laptops, we can disable GPUs at runtime when they are not in use is they support BACO. The runtime pm code in amdgpu was originally developed for PX/HG laptops, so it was pretty entangled with the vga_switcheroo and ACPI code. Since the GPU contains an audio codec for HDMI/DP, there is some interaction with the hda driver. I am by no means an expert on alsa, so any advice on those patches is much appreciated. I had to enable runtime pm on the hda device to allow the GPU to enter runtime pm because they are linked. These patches depend on the clean patches and CI/VI BACO patches I sent out earlier today. The full tree can be found here: https://cgit.freedesktop.org/~agd5f/linux/log/?h=baco TODO: - Turn off runtime pm when KFD is active - Make sure audio still works - Make sure PX/HG still works v2: - Split whitespace changes from baco callback addition - Fix pci ref counting in px/hg handling in hda driver - Handle CONFIG_ACPI properly - Split adding new hda pci ids from adding runpm flag Alex Deucher (21): drm/amdgpu: add asic callback for BACO support drm/amdgpu/soc15: move struct definition around to align with other soc15 asics drm/amdgpu: add supports_baco callback for soc15 asics. (v2) drm/amdgpu: add supports_baco callback for SI asics. drm/amdgpu: add supports_baco callback for CIK asics. drm/amdgpu: add supports_baco callback for VI asics. drm/amdgpu: add supports_baco callback for NV asics. drm/amdgpu: add a amdgpu_device_supports_baco helper drm/amdgpu: rename amdgpu_device_is_px to amdgpu_device_supports_boco (v2) drm/amdgpu: add additional boco checks to runtime suspend/resume (v2) drm/amdgpu: split swSMU baco_reset into enter and exit drm/amdgpu: add helpers for baco entry and exit drm/amdgpu: add baco support to runtime suspend/resume drm/amdgpu: start to disentangle boco from runtime pm drm/amdgpu: disentangle runtime pm and vga_switcheroo drm/amdgpu: enable runtime pm on BACO capable boards if runpm=1 drm/amdgpu/runpm: enable runpm on baco capable VI+ asics ALSA: hda/hdmi - fix vgaswitcheroo detection for AMD ALSA: hda/hdmi - Add new pci ids for AMD GPU display audio ALSA: hda/hdmi - enable runtime pm for newer AMD display audio ALSA: hda/hdmi - enable automatic runtime pm for AMD HDMI codecs by default drivers/gpu/drm/amd/amdgpu/amdgpu.h | 12 +- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 106 ++++++++++++++++-- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 63 ++++++----- drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 20 +++- drivers/gpu/drm/amd/amdgpu/cik.c | 18 +++ drivers/gpu/drm/amd/amdgpu/nv.c | 18 ++- drivers/gpu/drm/amd/amdgpu/si.c | 6 + drivers/gpu/drm/amd/amdgpu/soc15.c | 36 +++++- drivers/gpu/drm/amd/amdgpu/vi.c | 22 ++++ drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 20 +++- drivers/gpu/drm/amd/powerplay/arcturus_ppt.c | 3 +- .../gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 6 +- drivers/gpu/drm/amd/powerplay/inc/smu_v11_0.h | 3 +- drivers/gpu/drm/amd/powerplay/navi10_ppt.c | 3 +- drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 9 +- drivers/gpu/drm/amd/powerplay/vega20_ppt.c | 3 +- sound/pci/hda/hda_intel.c | 84 +++++++++++++- sound/pci/hda/patch_hdmi.c | 1 + 18 files changed, 371 insertions(+), 62 deletions(-) -- 2.23.0 _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
