On Thu, Nov 01, 2018 at 05:06:00PM +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrj...@linux.intel.com>
>
> Keep track which planes need updating during the commit. For now this
> is just (was_visible || is_visible) but I'll have need to update
When gen11 nv12 is in use, it also contains was_slave || is_slave as
well, right?
> invisible planes later on for skl plane ddbs and for pre-skl pipe
> gamma/csc control (which lives in the primary plane control register).
>
> Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
> ---
> drivers/gpu/drm/i915/intel_atomic.c | 1 +
> drivers/gpu/drm/i915/intel_atomic_plane.c | 8 ++++----
> drivers/gpu/drm/i915/intel_display.c | 5 ++++-
> drivers/gpu/drm/i915/intel_drv.h | 3 +++
> 4 files changed, 12 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_atomic.c
> b/drivers/gpu/drm/i915/intel_atomic.c
> index a5a2c8fe58a7..8cb02f28d30c 100644
> --- a/drivers/gpu/drm/i915/intel_atomic.c
> +++ b/drivers/gpu/drm/i915/intel_atomic.c
> @@ -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;
> }
> diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.c
> b/drivers/gpu/drm/i915/intel_atomic_plane.c
> index 7d3685075201..010269a12390 100644
> --- a/drivers/gpu/drm/i915/intel_atomic_plane.c
> +++ b/drivers/gpu/drm/i915/intel_atomic_plane.c
> @@ -137,6 +137,9 @@ 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,
> @@ -171,14 +174,11 @@ 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)))
> diff --git a/drivers/gpu/drm/i915/intel_display.c
> b/drivers/gpu/drm/i915/intel_display.c
> index 852b5897e80b..33d73915b73e 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -10797,8 +10797,10 @@ 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);
Just to clarify, this is to ensure that we clear out the register
programming of a plane that was an nv12 slave on the previous frame, but
isn't any longer on the current frame, and ...
> + }
>
> plane_state->slave = false;
> }
> @@ -10839,6 +10841,7 @@ 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);
... this is to ensure we setup the programming for any new slave planes?
Matt
> DRM_DEBUG_KMS("Using %s as Y plane for %s\n",
> linked->base.name, plane->base.name);
> }
>
> diff --git a/drivers/gpu/drm/i915/intel_drv.h
> b/drivers/gpu/drm/i915/intel_drv.h
> index 5331bbed5e8c..7a55f5921d34 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -925,6 +925,9 @@ 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;
>
> --
> 2.18.1
>
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--
Matt Roper
Graphics Software Engineer
IoTG Platform Enabling & Development
Intel Corporation
(916) 356-2795
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