summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/msm/adreno/a6xx_hfi.h
AgeCommit message (Collapse)Author
2025-05-04drm/msm/adreno: Add support for ACDAkhil P Oommen
ACD a.k.a Adaptive Clock Distribution is a feature which helps to reduce the power consumption. In some chipsets, it is also a requirement to support higher GPU frequencies. This patch adds support for GPU ACD by sending necessary data to GMU and AOSS. The feature support for the chipset is detected based on devicetree data. Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com> Tested-by: Maya Matuszczyk <maccraft123mc@gmail.com> Tested-by: Anthony Ruhier <aruhier@mailbox.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/649342/ Signed-off-by: Rob Clark <robdclark@chromium.org>
2025-01-03drm/msm: adreno: find bandwidth index of OPP and set it along freq indexNeil Armstrong
The Adreno GPU Management Unit (GMU) can also scale the DDR Bandwidth along the Frequency and Power Domain level, until now we left the OPP core scale the OPP bandwidth via the interconnect path. In order to enable bandwidth voting via the GPU Management Unit (GMU), when an opp is set by devfreq we also look for the corresponding bandwidth index in the previously generated bw_table and pass this value along the frequency index to the GMU. The GMU also takes another vote called AB which is a 16bit quantized value of the floor bandwidth against the maximum supported bandwidth. The AB is calculated with a default 25% of the bandwidth like the downstream implementation too inform the GMU firmware the minimal quantity of bandwidth we require for this OPP. Only pass the AB vote starting from A750 GPUs. Since we now vote for all resources via the GMU, setting the OPP is no more needed, so we can completely skip calling dev_pm_opp_set_opp() in this situation. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Akhil P Oommen <quic_akhilpo@quicinc.com> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/629397/ Signed-off-by: Rob Clark <robdclark@chromium.org>
2021-11-29drm/msm/gpu: Also snapshot GMU HFI bufferRob Clark
This also includes a history of start index of the last 8 messages on each queue, since parsing backwards to decode recently sent HFI messages is hard(ish). Signed-off-by: Rob Clark <robdclark@chromium.org> Link: https://lore.kernel.org/r/20211124214151.1427022-9-robdclark@gmail.com Signed-off-by: Rob Clark <robdclark@chromium.org>
2020-05-18drm/msm/a6xx: HFI v2 for A640 and A650Jonathan Marek
Add HFI v2 code paths required by Adreno 640 and 650 GPUs. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
2018-08-10drm/msm: Add A6XX device supportJordan Crouse
Add support for the A6XX family of Adreno GPUs. The biggest addition is the GMU (Graphics Management Unit) which takes over most of the power management of the GPU itself but in a ironic twist of fate needs a goodly amount of management itself. Add support for the A6XX core code, the GMU and the HFI (hardware firmware interface) queue that the CPU uses to communicate with the GMU. Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by: Rob Clark <robdclark@gmail.com>