2 or more SSPPs and dual-DSI interface are need for super wide panel. And 4 DSC are preferred for power optimal in this case due to width limitation of SSPP and MDP clock rate constrain. This patch set extends number of pipes to 4 and revise related mixer blending logic to support quad pipe. All these changes depends on the virtual plane feature to split a super wide drm plane horizontally into 2 or more sub clip. Thus DMA of multiple SSPPs can share the effort of fetching the whole drm plane. The first pipe pair co-work with the first mixer pair to cover the left half of screen and 2nd pair of pipes and mixers are for the right half of screen. If a plane is only for the right half of screen, only one or two of pipes in the 2nd pipe pair are valid, and no SSPP or mixer is assinged for invalid pipe. For those panel that does not require quad-pipe, only 1 or 2 pipes in the 1st pipe pair will be used. There is no concept of right half of screen. For legacy non virtual plane mode, the first 1 or 2 pipes are used for the single SSPP and its multi-rect mode. To test bonded DSI on SM8650, the 5 patches for active-CTL improvement are needed: https://gitlab.freedesktop.org/lumag/msm/-/commits/dpu-4k?ref_type=heads Changes in v5: - Iterate SSPP flushing within the required mixer pair, instead of all active mixers or specific mixer. - Limit qaud-pipe usage case to SoC with 4 or more DSC engines and 2 interfaces case. - Polish commit messages and code comments. - Link to v4: https://lore.kernel.org/r/20250116-sm8650-v6-13-hmd-deckard-mdss-quad-upstream-33-v4-0-74749c6eba33@xxxxxxxxxx Changes in v4: - Restrict SSPP flushing to the required mixer, instead of all active mixers. - Polish commit messages and code comments. - Rebase to latest msm/drm-next branch. - Move pipe checking patch to the top of patch set. - Link to v3: https://lore.kernel.org/dri-devel/20241219-sm8650-v6-13-hmd-deckard-mdss-quad-upstream-32-v3-0-92c7c0a228e3@xxxxxxxxxx Changes in v3: - Split change in trace into a separate patch. - Rebase to latest msm-next branch. - Reorder patch sequence to make sure valid flag is set in earlier patch - Rectify rewrite patch to move logic change into other patch - Polish commit messages and code comments. - Link to v2: https://lore.kernel.org/dri-devel/20241009-sm8650-v6-11-hmd-pocf-mdss-quad-upstream-21-v2-0-76d4f5d413bf@xxxxxxxxxx Changes in v2: - Revise the patch sequence with changing to 2 pipes topology first. Then prepare for quad-pipe setup, then enable quad-pipe at last. - Split DSI patches into other patch set. - Link to v1: https://lore.kernel.org/all/20240829-sm8650-v6-11-hmd-pocf-mdss-quad-upstream-8-v1-0-bdb05b4b5a2e@xxxxxxxxxx Signed-off-by: Jun Nie <jun.nie@xxxxxxxxxx> --- Jun Nie (15): drm/msm/dpu: check every pipe per capability drm/msm/dpu: Do not fix number of DSC drm/msm/dpu: configure DSC per number in use drm/msm/dpu: polish log for resource allocation drm/msm/dpu: decide right side per last bit drm/msm/dpu: fix mixer number counter on allocation drm/msm/dpu: switch RM to use crtc_id rather than enc_id for allocation drm/msm/dpu: bind correct pingpong for quad pipe drm/msm/dpu: Add pipe as trace argument drm/msm/dpu: handle pipes as array drm/msm/dpu: split PIPES_PER_STAGE definition per plane and mixer drm/msm/dpu: blend pipes per mixer pairs config drm/msm/dpu: support SSPP assignment for quad-pipe case drm/msm/dpu: support plane splitting in quad-pipe case drm/msm/dpu: Enable quad-pipe for DSC and dual-DSI case drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 88 +++-- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h | 8 +- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 75 +++-- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h | 2 +- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h | 2 +- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h | 2 + drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 12 +- drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 404 ++++++++++++++--------- drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h | 12 +- drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c | 215 ++++++------ drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h | 32 +- drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h | 10 +- 12 files changed, 517 insertions(+), 345 deletions(-) --- base-commit: 793ba0dd2dc6a38180a82d0ad0c58920bcf595b5 change-id: 20250116-sm8650-v6-13-hmd-deckard-mdss-quad-upstream-33-fa9d24d27c81 Best regards, -- Jun Nie <jun.nie@xxxxxxxxxx>
