GEN >= 10 hardware supports the programmable scaler filter.
Attach scaling filter property for CRTC and plane for GEN >= 10
hardwares and program scaler filter based on the selected filter
type.
changes since v1:
* None
Changes since RFC:
* Enable properties for GEN >= 10 platforms (Ville)
* Do not round off the crtc co-ordinate (Danial Stone, Ville)
* Add new functions to handle scaling filter setup (Ville)
* Remove coefficient set 0 hardcoding.
Signed-off-by: Shashank Sharma <shashank.sha...@intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nauti...@intel.com>
Signed-off-by: Pankaj Bharadiya <pankaj.laxminarayan.bharad...@intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 32 ++++++++++++++++++--
drivers/gpu/drm/i915/display/intel_sprite.c | 31 ++++++++++++++++++-
2 files changed, 60 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c
b/drivers/gpu/drm/i915/display/intel_display.c
index 791dd908aa89..4b3387ee332e 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -6309,6 +6309,25 @@ void skl_scaler_setup_nearest_neighbor_filter(struct
drm_i915_private *dev_priv,
}
}
+static u32
+skl_scaler_crtc_setup_filter(struct drm_i915_private *dev_priv, enum pipe pipe,
+ int id, int set, enum drm_crtc_scaling_filter filter)
+{
+ u32 scaler_filter_ctl = PS_FILTER_MEDIUM;
+
+ if (filter == DRM_CRTC_SCALING_FILTER_NEAREST_NEIGHBOR) {
+ skl_scaler_setup_nearest_neighbor_filter(dev_priv, pipe, id,
+ set);
+ scaler_filter_ctl = PS_FILTER_PROGRAMMED |
+ PS_UV_VERT_FILTER_SELECT(set) |
+ PS_UV_HORZ_FILTER_SELECT(set) |
+ PS_Y_VERT_FILTER_SELECT(set) |
+ PS_Y_HORZ_FILTER_SELECT(set);
+
+ }
+ return scaler_filter_ctl;
+}
+
static void skl_pfit_enable(const struct intel_crtc_state *crtc_state)
{
struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
@@ -6316,12 +6335,14 @@ static void skl_pfit_enable(const struct
intel_crtc_state *crtc_state)
enum pipe pipe = crtc->pipe;
const struct intel_crtc_scaler_state *scaler_state =
&crtc_state->scaler_state;
+ const struct drm_crtc_state *state = &crtc_state->uapi;
if (crtc_state->pch_pfit.enabled) {
u16 uv_rgb_hphase, uv_rgb_vphase;
int pfit_w, pfit_h, hscale, vscale;
unsigned long irqflags;
int id;
+ int scaler_filter_ctl;
if (drm_WARN_ON(&dev_priv->drm,
crtc_state->scaler_state.scaler_id < 0))
@@ -6340,8 +6361,12 @@ static void skl_pfit_enable(const struct
intel_crtc_state *crtc_state)
spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
- intel_de_write_fw(dev_priv, SKL_PS_CTRL(pipe, id), PS_SCALER_EN
|
- PS_FILTER_MEDIUM |
scaler_state->scalers[id].mode);
+ scaler_filter_ctl =
+ skl_scaler_crtc_setup_filter(dev_priv, pipe, id, 0,
+ state->scaling_filter);
+ intel_de_write_fw(dev_priv, SKL_PS_CTRL(pipe, id),
+ PS_SCALER_EN | scaler_filter_ctl |
+ scaler_state->scalers[id].mode);
intel_de_write_fw(dev_priv, SKL_PS_VPHASE(pipe, id),
PS_Y_PHASE(0) |
PS_UV_RGB_PHASE(uv_rgb_vphase));
intel_de_write_fw(dev_priv, SKL_PS_HPHASE(pipe, id),
@@ -16777,6 +16802,9 @@ static int intel_crtc_init(struct drm_i915_private
*dev_priv, enum pipe pipe)
dev_priv->plane_to_crtc_mapping[i9xx_plane] = crtc;
}
+ if (INTEL_GEN(dev_priv) >= 10)
+ drm_crtc_enable_scaling_filter(&crtc->base);
+
intel_color_init(crtc);
intel_crtc_crc_init(crtc);
diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c
b/drivers/gpu/drm/i915/display/intel_sprite.c
index deda351719db..ac3fd9843ace 100644
--- a/drivers/gpu/drm/i915/display/intel_sprite.c
+++ b/drivers/gpu/drm/i915/display/intel_sprite.c
@@ -395,6 +395,26 @@ skl_plane_max_stride(struct intel_plane *plane,
return min(8192 * cpp, 32768);
}
+static u32
+skl_scaler_plane_setup_filter(struct drm_i915_private *dev_priv, enum pipe
pipe,
+ int id, int set,
+ enum drm_plane_scaling_filter filter)
+{
+ u32 scaler_filter_ctl = PS_FILTER_MEDIUM;
+
+ if (filter == DRM_PLANE_SCALING_FILTER_NEAREST_NEIGHBOR) {
+ skl_scaler_setup_nearest_neighbor_filter(dev_priv, pipe, id,
+ set);
+ scaler_filter_ctl = PS_FILTER_PROGRAMMED |
+ PS_UV_VERT_FILTER_SELECT(set) |
+ PS_UV_HORZ_FILTER_SELECT(set) |
+ PS_Y_VERT_FILTER_SELECT(set) |
+ PS_Y_HORZ_FILTER_SELECT(set);
+
+ }
+ return scaler_filter_ctl;
+}
+
static void
skl_program_scaler(struct intel_plane *plane,
const struct intel_crtc_state *crtc_state,
@@ -406,6 +426,7 @@ skl_program_scaler(struct intel_plane *plane,
int scaler_id = plane_state->scaler_id;
const struct intel_scaler *scaler =
&crtc_state->scaler_state.scalers[scaler_id];
+ const struct drm_plane_state *state = &plane_state->uapi;
int crtc_x = plane_state->uapi.dst.x1;
int crtc_y = plane_state->uapi.dst.y1;
u32 crtc_w = drm_rect_width(&plane_state->uapi.dst);
@@ -413,6 +434,7 @@ skl_program_scaler(struct intel_plane *plane,
u16 y_hphase, uv_rgb_hphase;
u16 y_vphase, uv_rgb_vphase;
int hscale, vscale;
+ int scaler_filter_ctl;
hscale = drm_rect_calc_hscale(&plane_state->uapi.src,
&plane_state->uapi.dst,
@@ -439,8 +461,12 @@ skl_program_scaler(struct intel_plane *plane,
uv_rgb_vphase = skl_scaler_calc_phase(1, vscale, false);
}
+ scaler_filter_ctl =
+ skl_scaler_plane_setup_filter(dev_priv, pipe, scaler_id, 0,
+ state->scaling_filter);
intel_de_write_fw(dev_priv, SKL_PS_CTRL(pipe, scaler_id),
- PS_SCALER_EN | PS_PLANE_SEL(plane->id) |
scaler->mode);
+ PS_SCALER_EN | PS_PLANE_SEL(plane->id) |
+ scaler->mode | scaler_filter_ctl);
intel_de_write_fw(dev_priv, SKL_PS_VPHASE(pipe, scaler_id),
PS_Y_PHASE(y_vphase) |
PS_UV_RGB_PHASE(uv_rgb_vphase));
intel_de_write_fw(dev_priv, SKL_PS_HPHASE(pipe, scaler_id),
@@ -3121,6 +3147,9 @@ skl_universal_plane_create(struct drm_i915_private
*dev_priv,
drm_plane_create_zpos_immutable_property(&plane->base, plane_id);
+ if (INTEL_GEN(dev_priv) >= 10)
+ drm_plane_enable_scaling_filter(&plane->base);
+
drm_plane_helper_add(&plane->base, &intel_plane_helper_funcs);
return plane;
--
2.23.0
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