On Wed, Apr 18, 2018 at 8:22 PM, Huang Rui <ray.huang at amd.com> wrote: > GFXOFF is the new GPU feature that save power consumption. It used RLC to > poweroff the gfx engine dynamicly when there is no workload on gfx pipe and make > gfx into "idle" state. > 1. Add three additional RLC ucodes, and use psp to load them. > 2. Revise RLC save restore list. > 3. Enable CGPG (GFX power gating). > 4. Enable gfxoff. > 5. Revise suspend/resume sequence. > > Currently, only raven is able to support gfxoff at first. And after CQE do > series rounds of testing, and there is no regression that bring by gfxoff > feature till now. > > We support two types of gfxoff, and user is able to build them manually from > firmware repo: > 1. Real CGPG > $ make clean > $ make REAL_CGPG=1 > 2. Faked CGPG: (by default) > $ make clean > $ make > > Then configure to enable gfxoff with ppfeaturemask=0xffffbfff. A couple of things we need to take care of before enabling this: 1. Need to switch it off when selecting stable pstate or profiling mode in powerplay 2. Need to check if gfx is on before accessing the RLC_GPU_CLOCK_COUNT registers. Alex > > Thanks, > Ray > > Huang Rui (20): > drm/amdgpu: update psp gfx if header > drm/amdgpu: add new rlc firmware header format v2.1 > drm/amdgpu: add save restore list cntl gpm and srm firmware support > drm/amdgpu: enter rlc safe mode before set cgpg > drm/amdgpu: cleanup init power gating function > drm/amdgpu: revise init_rlc_save_restore_list behavior to support > latest register_list_format/register_restore table > drm/amdgpu: add setting powergating method for gfx9 > drm/amd/powerplay: send CGPG smc message if PG is enabled for raven > drm/amdgpu: move PP_FEATURE_MASK to amd_shared header > drm/amdgpu: add gfxoff feature mask > drm/amdgpu: set gfxoff disabled by default > drm/amd/powerplay: add gfx off control function > drm/amd/powerplay: enable/disable gfxoff through smu > drm/amdgpu: use pp_feature member to store the mask > drm/amdgpu: clear gfxoff featue mask if the asic is not raven > drm/amd/powerplay: add control gfxoff enabling in late init > drm/amdgpu: it should disable gfxoff when system is going to suspend > drm/amdgpu: fix to disable powergating in hw_fini > drm/amdgpu: set CGPG if gfxoff is enabled for raven > drm/amd/powerplay: use the flag to decide whether send gfxoff smc > message > > drivers/gpu/drm/amd/amdgpu/amdgpu.h | 16 ++ > drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 8 + > drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h | 2 - > drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 2 +- > drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 36 ++++ > drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c | 51 ++++- > drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h | 22 ++ > drivers/gpu/drm/amd/amdgpu/ci_dpm.c | 2 +- > drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 233 +++++++++++++++------- > drivers/gpu/drm/amd/amdgpu/kv_dpm.c | 2 +- > drivers/gpu/drm/amd/amdgpu/psp_gfx_if.h | 67 +++++-- > drivers/gpu/drm/amd/amdgpu/psp_v10_0.c | 9 + > drivers/gpu/drm/amd/amdgpu/soc15.c | 5 + > drivers/gpu/drm/amd/include/amd_shared.h | 19 ++ > drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 20 +- > drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c | 6 +- > drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c | 50 ++++- > drivers/gpu/drm/amd/powerplay/inc/hwmgr.h | 19 +- > drivers/gpu/drm/amd/powerplay/inc/rv_ppsmc.h | 1 + > include/uapi/drm/amdgpu_drm.h | 6 + > 20 files changed, 447 insertions(+), 129 deletions(-) > > -- > 2.7.4 > > _______________________________________________ > amd-gfx mailing list > amd-gfx at lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/amd-gfx
