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46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: Ak7nB+FyPIWnVeiU/fxQuP1VewvGYEXyU1FvzdrOn7nasBa+JVNVyK+Z3TXpDEozz7O218CxSOe6ebp476NrjJnp+UMyld9tf6fjaY2NWIw= X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH3PPFBA2AA2BA3 X-OriginatorOrg: intel.com X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" On 3/17/2026 2:22 AM, Melissa Wen wrote: > For suspend/resume to work correctly, do for colorop state the same we > do for plane/crtc/connector states: duplicate the state of colorops in a > color pipeline if it's in use by a given plane when suspending and > restore cached colorop states when resuming. > > Fixes: 2afc3184f3b3 ("drm/plane: Add COLOR PIPELINE property") > Signed-off-by: Melissa Wen > --- > > Hi, > > I've been working on making gamescope use KMS plane color API, instead > of AMD driver-specific color properties [1] and I found this issue > during Steam Deck suspend/resume process. > > Initially I thought I should also set plane color_mgmt_changed to make > AMD driver reprogram the color state, but looks like it's not needed > (still testing). Therefore, I think the change here is enough to fix it. > > It applies on top of drm-misc-next and is inspired by commit > 6955d6bca053 ("drm/atomic: Add affected colorops with affected planes"). > > [1] https://github.com/ValveSoftware/gamescope/pull/2113 > > drivers/gpu/drm/drm_atomic_helper.c | 12 ++++++++++++ > include/drm/drm_atomic.h | 3 ++- > 2 files changed, 14 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c > index 26953ed6b53e..683a0e207f71 100644 > --- a/drivers/gpu/drm/drm_atomic_helper.c > +++ b/drivers/gpu/drm/drm_atomic_helper.c > @@ -3751,6 +3751,13 @@ drm_atomic_helper_duplicate_state(struct drm_device *dev, > err = PTR_ERR(plane_state); > goto free; > } > + > + if (plane_state->color_pipeline) { > + err = drm_atomic_add_affected_colorops(state, plane); > + if (err) > + goto free; > + } > + > } > > drm_connector_list_iter_begin(dev, &conn_iter); > @@ -3856,6 +3863,8 @@ int drm_atomic_helper_commit_duplicated_state(struct drm_atomic_state *state, > int i, ret; > struct drm_plane *plane; > struct drm_plane_state *new_plane_state; > + struct drm_colorop *colorop; > + struct drm_colorop_state *new_colorop_state; > struct drm_connector *connector; > struct drm_connector_state *new_conn_state; > struct drm_crtc *crtc; > @@ -3866,6 +3875,9 @@ int drm_atomic_helper_commit_duplicated_state(struct drm_atomic_state *state, > for_each_new_plane_in_state(state, plane, new_plane_state, i) > state->planes[i].old_state = plane->state; > > + for_each_new_colorop_in_state(state, colorop, new_colorop_state, i) > + state->colorops[i].old_state = colorop->state; > + Nit: Just to maintain the object hierarchy this could be moved above planes. > for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) > state->crtcs[i].old_state = crtc->state; > > diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h > index 0b1b32bcd2bd..96fd32a3e92c 100644 > --- a/include/drm/drm_atomic.h > +++ b/include/drm/drm_atomic.h > @@ -1102,7 +1102,8 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p); > for_each_if ((__state)->colorops[__i].ptr && \ > ((colorop) = (__state)->colorops[__i].ptr, \ > (void)(colorop) /* Only to avoid unused-but-set-variable warning */, \ > - (new_colorop_state) = (__state)->colorops[__i].new_state, 1)) > + (new_colorop_state) = (__state)->colorops[__i].new_state,\ > + (void)(new_colorop_state) /* Only to avoid unused-but-set-variable warning */, 1)) > Perhaps this should move to a separate patch. Otherwise, the changes LGTM. Reviewed-by: Chaitanya Kumar Borah > /** > * for_each_oldnew_plane_in_state - iterate over all planes in an atomic update