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drm/i915: Introduce crtc_state->update_planes bitmask

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Keep track which planes need updating during the commit. For now
we set the bit for any plane that was or will be visible (including
icl+ nv12 slave planes). In the future I'll have need to update
invisible planes as well, for skl plane ddbs and for pre-skl pipe
gamma/csc control (which lives in the primary plane control register).

v2: Pimp the commit message to mention icl+ nv12 slave planes (Matt)

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181127163742.30215-1-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2018-11-27 18:37:42 +02:00
parent 019575a58c
commit afbd8a722b
4 changed files with 12 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/i915/intel_atomic.c
View File

@ -184,6 +184,7 @@ intel_crtc_duplicate_state(struct drm_crtc *crtc)
crtc_state->fifo_changed = false;
crtc_state->wm.need_postvbl_update = false;
crtc_state->fb_bits = 0;
crtc_state->update_planes = 0;
return &crtc_state->base;
}

8
drivers/gpu/drm/i915/intel_atomic_plane.c
View File

@ -139,6 +139,9 @@ int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_
if (state->visible && state->fb->format->format == DRM_FORMAT_NV12)
crtc_state->nv12_planes |= BIT(intel_plane->id);
if (state->visible || old_plane_state->base.visible)
crtc_state->update_planes |= BIT(intel_plane->id);
return intel_plane_atomic_calc_changes(old_crtc_state,
&crtc_state->base,
old_plane_state,
@ -173,14 +176,11 @@ void intel_update_planes_on_crtc(struct intel_atomic_state *old_state,
struct intel_crtc_state *old_crtc_state,
struct intel_crtc_state *new_crtc_state)
{
u32 update_mask = new_crtc_state->update_planes;
struct intel_plane_state *new_plane_state;
struct intel_plane *plane;
u32 update_mask;
int i;
update_mask = old_crtc_state->active_planes;
update_mask |= new_crtc_state->active_planes;
for_each_new_intel_plane_in_state(old_state, plane, new_plane_state, i) {
if (crtc->pipe != plane->pipe ||
!(update_mask & BIT(plane->id)))

5
drivers/gpu/drm/i915/intel_display.c
View File

@ -10839,8 +10839,10 @@ static int icl_check_nv12_planes(struct intel_crtc_state *crtc_state)
continue;
plane_state->linked_plane = NULL;
if (plane_state->slave && !plane_state->base.visible)
if (plane_state->slave && !plane_state->base.visible) {
crtc_state->active_planes &= ~BIT(plane->id);
crtc_state->update_planes |= BIT(plane->id);
}
plane_state->slave = false;
}
@ -10881,6 +10883,7 @@ static int icl_check_nv12_planes(struct intel_crtc_state *crtc_state)
linked_state->slave = true;
linked_state->linked_plane = plane;
crtc_state->active_planes |= BIT(linked->id);
crtc_state->update_planes |= BIT(linked->id);
DRM_DEBUG_KMS("Using %s as Y plane for %s\n", linked->base.name, plane->base.name);
}

3
drivers/gpu/drm/i915/intel_drv.h
View File

@ -926,6 +926,9 @@ struct intel_crtc_state {
u8 active_planes;
u8 nv12_planes;
/* bitmask of planes that will be updated during the commit */
u8 update_planes;
/* HDMI scrambling status */
bool hdmi_scrambling;