This patch follows Jordan's recent "drm/msm: Add A6XX device support" patch series and adds preemption support. Preemption allows the GPU to switch to a higher priority ringbuffer when one is ready, thereby improving user experience. A6xx hardware supports various preemption levels, each with different granularities and different switch-out--switch-in times. While this patch only enables the first preemption level i.e. preemption at the ringbuffer level, support for more finer grained preemption levels will follow after more testing. Sharat Masetty (4): drm/msm: Add submitqueue setup and close drm/msm: Add new PM4 type7 opcodes drm/msm/A6xx: Implement preemption for A6XX targets drm/msm/A6xx: Enable preemption for A6xx targets drivers/gpu/drm/msm/Makefile | 1 + drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 44 ++++ drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 148 ++++++++++- drivers/gpu/drm/msm/adreno/a6xx_gpu.h | 136 ++++++++++ drivers/gpu/drm/msm/adreno/a6xx_preempt.c | 383 ++++++++++++++++++++++++++++ drivers/gpu/drm/msm/adreno/adreno_pm4.xml.h | 2 + drivers/gpu/drm/msm/msm_gpu.h | 7 + drivers/gpu/drm/msm/msm_submitqueue.c | 15 +- 8 files changed, 731 insertions(+), 5 deletions(-) create mode 100644 drivers/gpu/drm/msm/adreno/a6xx_preempt.c -- 1.9.1 -- 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
