From 0bc9519301ed7c7cc31ccaa49c2baecb0bb34d95 Mon Sep 17 00:00:00 2001 From: Shirish S Date: Fri, 16 Feb 2018 11:44:22 +0530 Subject: [PATCH 3655/4131] drm/amd/display: defer modeset check in dm_update_planes_state amdgpu_dm_atomic_check() is used to validate the entire configuration of planes and crtc's that the user space wants to commit. However amdgpu_dm_atomic_check() depends upon DRM_MODE_ATOMIC_ALLOW_MODESET flag else its mostly dummy. Its not mandatory for the user space to set DRM_MODE_ATOMIC_ALLOW_MODESET, and in general its not set either along with DRM_MODE_ATOMIC_TEST_ONLY. Considering its importantance, this patch defers the allow_modeset check in dm_update_planes_state(), so that there shall be scope to validate the configuration sent from user space, without impacting the population of dc/dm related data structures. Signed-off-by: Shirish S Reviewed-by: Harry Wentland Signed-off-by: Kalyan Alle --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 718e731..c61650d 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -4801,9 +4801,6 @@ static int dm_update_planes_state(struct dc *dc, bool pflip_needed = !state->allow_modeset; int ret = 0; - if (pflip_needed) - return ret; - /* Add new planes */ for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) { new_plane_crtc = new_plane_state->crtc; @@ -4817,6 +4814,8 @@ static int dm_update_planes_state(struct dc *dc, /* Remove any changed/removed planes */ if (!enable) { + if (pflip_needed) + continue; if (!old_plane_crtc) continue; @@ -4861,6 +4860,8 @@ static int dm_update_planes_state(struct dc *dc, if (!dm_new_crtc_state->stream) continue; + if (pflip_needed) + continue; WARN_ON(dm_new_plane_state->dc_state); -- 2.7.4