On Mon, Aug 6, 2018 at 1:35 PM Jordan Crouse <jcrouse@xxxxxxxxxxxxxx> wrote: > > This is an initial version of support for the Adreno a6xx GPU family starting > with the a630 from the sdm845 SoC. This code is ahead of much of the sdm845 > code that would be needed to actually bring up a device and it is also in > advance of any user side support for the a6xx GPU so this is mainly just a > chance to look over the code structure and get a feel for the > direction that the hardware is going in. Note that, we have WIP freedreno support here: https://gitlab.freedesktop.org/krh/mesa/commits/wip/a6xx I'm still working on some cleanup, but at this point glmark2 and CrOS boots to UI (ie. chromium browser works).. so I think I'll be ready to push initial round of mesa support this week. BR, -R > The a6xx GPU is an iteration of a5xx so most of the GPU side code looks pretty > identical except for the usual register differences. The big different is in > power control. On the a5xx there was a rudimentary device called the GPMU that > did some basic power stuff but left most of the complexity to the kernel. > > On the a6xx the power complexity is being moved to a component > called the GMU (graphics management unit) which handles the power control of the > GPU and shuts it down quickly after it goes idle. > > This stack has one run time dependency that shifts the power responsibility > for the SMMU to the SMMU driver instead of the current workaround of implicitly > powering the SMMU by powering the GPU: > > https://patchwork.kernel.org/patch/10301163/ - pm_runtime ops for arm-smmu > > [v7 - Make sure the GMU sets the GPU clock to something reasonable. Force the > GPU/GMU on during state capture to avoid errors. Fix checkpatch errors] > > [v6 - set nr_clocks to 0 when parsing fails and minor cleanup in msm_iommu for > Vivek. Fix compile error in the load firmware patch ] > > [v5 - Move firmware loading to adreno_load_gpu() so it is easier to fail if the > firmware isn't found ] > > [v4 - Add clock parsing helper function and use it for GPU and GMU. Update > recommended clock gating settings. Fix a bug in the CMD DB parser. Update > register values from updated database ] > > [v3 - fix inverted register definition for GMU_SPTPRAC_CLK_STATUS; fix incorrect > register check in a5xx_gmu_gx_is_on(), use dev_pm_opp_get_of_node() from > Rajendra and Viresh to read the qcom,level from the device tree; read qcom,level > from the DT to get the voltage level to pass to the GMU, fix issues > identified by smatch] > > [v2 - addressed comments from Lucas Stach; added pm_runtime_get_supplier calls > for accesses to the GMU IOMMU; moved to SPDX headers for new files] > > Jordan Crouse (4): > drm/msm: Remove pm_runtime operations from msm_iommu > drm/msm: Add a helper function to parse clock names > drm/msm/adreno: Load the firmware before bringing up the hardware > drm/msm: Add A6XX device support > > Sharat Masetty (1): > drm/msm: Add generated headers for A6XX > > drivers/gpu/drm/msm/Makefile | 3 + > drivers/gpu/drm/msm/adreno/a6xx.xml.h | 1784 ++++++++++++++++++++ > drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 1207 +++++++++++++ > drivers/gpu/drm/msm/adreno/a6xx_gmu.h | 162 ++ > drivers/gpu/drm/msm/adreno/a6xx_gmu.xml.h | 382 +++++ > drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 818 +++++++++ > drivers/gpu/drm/msm/adreno/a6xx_gpu.h | 60 + > drivers/gpu/drm/msm/adreno/a6xx_hfi.c | 435 +++++ > drivers/gpu/drm/msm/adreno/a6xx_hfi.h | 127 ++ > drivers/gpu/drm/msm/adreno/adreno_device.c | 35 +- > drivers/gpu/drm/msm/adreno/adreno_gpu.c | 2 +- > drivers/gpu/drm/msm/adreno/adreno_gpu.h | 5 +- > drivers/gpu/drm/msm/msm_drv.c | 57 + > drivers/gpu/drm/msm/msm_drv.h | 4 + > drivers/gpu/drm/msm/msm_gpu.c | 62 +- > drivers/gpu/drm/msm/msm_gpu.h | 2 +- > drivers/gpu/drm/msm/msm_iommu.c | 13 +- > 17 files changed, 5091 insertions(+), 67 deletions(-) > create mode 100644 drivers/gpu/drm/msm/adreno/a6xx.xml.h > create mode 100644 drivers/gpu/drm/msm/adreno/a6xx_gmu.c > create mode 100644 drivers/gpu/drm/msm/adreno/a6xx_gmu.h > create mode 100644 drivers/gpu/drm/msm/adreno/a6xx_gmu.xml.h > create mode 100644 drivers/gpu/drm/msm/adreno/a6xx_gpu.c > create mode 100644 drivers/gpu/drm/msm/adreno/a6xx_gpu.h > create mode 100644 drivers/gpu/drm/msm/adreno/a6xx_hfi.c > create mode 100644 drivers/gpu/drm/msm/adreno/a6xx_hfi.h > > -- > 2.18.0 > > _______________________________________________ > Freedreno mailing list > Freedreno@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/freedreno -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
