This series of patches implements multiple ringbuffers and preemption for Adreno A5XX targets. Preemption allows a command to be interrupted at specific preemption points and execution switched to a different ringbuffer. The software alogrithm uses preemption to enforce quality of service for priority levels - commands to a certain ring preempt the rings of lower priority. Note that priority is a software construct; the driver chooses a ring to switch to and the hardware executes. This is important because it shows that preemption can be used for things other than priority (timeslices for quality of service for example). This initial series implements 4 ringbuffers to give sufficient coverage for the range of priority levels requested by the GLES and compute extensions. The targeted ringbuffer is specified in the command submission flags. The default ring is 0 (lowest priority). Jordan Jordan Crouse (11): drm/msm: Make sure to detach the MMU during GPU cleanup drm/msm: Improve the zap shader drm/msm: Add hint to DRM_IOCTL_MSM_GEM_INFO to return an object IOVA drm/msm: Remove idle function hook drm/msm: get an iova from the address space instead of an id drm/msm: Add a struct to pass configuration to msm_gpu_init() drm/msm: Remove memptrs->wptr drm/msm: Support multiple ringbuffers drm/msm: Shadow current pointer in the ring until command is complete drm/msm: Make the value of RB_CNTL (almost) generic drm/msm: Implement preemption for A5XX targets drivers/gpu/drm/msm/Makefile | 1 + drivers/gpu/drm/msm/adreno/a3xx_gpu.c | 13 +- drivers/gpu/drm/msm/adreno/a4xx_gpu.c | 13 +- drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 278 +++++++++++++++++----- drivers/gpu/drm/msm/adreno/a5xx_gpu.h | 106 +++++++++ drivers/gpu/drm/msm/adreno/a5xx_power.c | 11 +- drivers/gpu/drm/msm/adreno/a5xx_preempt.c | 367 ++++++++++++++++++++++++++++++ drivers/gpu/drm/msm/adreno/adreno_gpu.c | 215 +++++++++++------ drivers/gpu/drm/msm/adreno/adreno_gpu.h | 42 ++-- drivers/gpu/drm/msm/dsi/dsi_host.c | 15 +- drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c | 8 +- drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c | 18 +- drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h | 3 - drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c | 13 +- drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c | 5 +- drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c | 11 +- drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h | 4 - drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c | 13 +- drivers/gpu/drm/msm/msm_drv.c | 43 ++-- drivers/gpu/drm/msm/msm_drv.h | 27 ++- drivers/gpu/drm/msm/msm_fb.c | 15 +- drivers/gpu/drm/msm/msm_fbdev.c | 10 +- drivers/gpu/drm/msm/msm_fence.c | 85 +++++-- drivers/gpu/drm/msm/msm_fence.h | 13 +- drivers/gpu/drm/msm/msm_gem.c | 124 +++++++--- drivers/gpu/drm/msm/msm_gem.h | 5 +- drivers/gpu/drm/msm/msm_gem_submit.c | 14 +- drivers/gpu/drm/msm/msm_gpu.c | 140 +++++++----- drivers/gpu/drm/msm/msm_gpu.h | 54 ++++- drivers/gpu/drm/msm/msm_kms.h | 3 + drivers/gpu/drm/msm/msm_ringbuffer.c | 14 +- drivers/gpu/drm/msm/msm_ringbuffer.h | 21 +- include/uapi/drm/msm_drm.h | 9 +- 33 files changed, 1324 insertions(+), 389 deletions(-) create mode 100644 drivers/gpu/drm/msm/adreno/a5xx_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
