This patchset adds drm_writeback connector supports and enables display writeback block (DWB) in AMD hardware. The function can be tested by IGT's kms_writeback test which also requires a number of patches to enable 10bit (DRM_FORMAT_XRGB2101010). Patches are available @ https://patchwork.freedesktop.org/series/122536/ Alex Hung (10): drm/amd/display: Initialize writeback connector drm/amd/display: Hande writeback request from userspace drm/amd/display: Add writeback enable/disable in dc drm/amd/display: Fix writeback_info never got updated drm/amd/display: Validate hw_points_num before using it drm/amd/display: Fix writeback_info is not removed drm/amd/display: Add writeback enable field (wb_enabled) drm/amd/display: Setup for mmhubbub3_warmup_mcif with big buffer drm/amd/display: Add new set_fc_enable to struct dwbc_funcs drm/amd/display: Disable DWB frame capture to emulate oneshot Harry Wentland (8): drm/amd/display: Skip entire amdgpu_dm build if !CONFIG_DRM_AMD_DC drm/amd/display: Create one virtual connector in DC drm/amd/display: Skip writeback connector when we get amdgpu_dm_connector drm/amd/display: Return drm_connector from find_first_crtc_matching_connector drm/amd/display: Use drm_connector in create_stream_for_sink drm/amd/display: Use drm_connector in create_validate_stream_for_sink drm/amd/display: Create amdgpu_dm_wb_connector drm/amd/display: Create fake sink and stream for writeback connector drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h | 4 + .../gpu/drm/amd/display/amdgpu_dm/Makefile | 14 +- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 375 ++++++++++++++++-- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 12 +- .../drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c | 3 + .../drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c | 22 +- .../display/amdgpu_dm/amdgpu_dm_mst_types.c | 8 +- .../drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c | 215 ++++++++++ .../drm/amd/display/amdgpu_dm/amdgpu_dm_wb.h | 36 ++ .../gpu/drm/amd/display/dc/core/dc_stream.c | 80 +++- drivers/gpu/drm/amd/display/dc/dc_stream.h | 4 + .../gpu/drm/amd/display/dc/dcn30/dcn30_dwb.c | 23 ++ .../gpu/drm/amd/display/dc/dcn30/dcn30_dwb.h | 2 + .../drm/amd/display/dc/dcn30/dcn30_dwb_cm.c | 3 + .../drm/amd/display/dc/dcn30/dcn30_hwseq.c | 4 + .../drm/amd/display/dc/dcn31/dcn31_hwseq.c | 3 +- drivers/gpu/drm/amd/display/dc/inc/hw/dwb.h | 4 + 17 files changed, 742 insertions(+), 70 deletions(-) create mode 100644 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c create mode 100644 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.h -- 2.41.0
