drm/i915: Move programming plane scaler to its own function.

This cleans the code up slightly, and will make other changes easier.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180920102711.4184-8-maarten.lankhorst@linux.intel.com

diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index d4c8e10fc90b63a4b4344a3931d8d166f4353b03..7d3c7469d2719928075bf676b4933fcd8f0169f8 100644 (file)
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -280,13 +280,63 @@ skl_plane_max_stride(struct intel_plane *plane,
                return min(8192 * cpp, 32768);
 }
 
+static void
+skl_program_scaler(struct drm_i915_private *dev_priv,
+                  struct intel_plane *plane,
+                  const struct intel_crtc_state *crtc_state,
+                  const struct intel_plane_state *plane_state)
+{
+       enum plane_id plane_id = plane->id;
+       enum pipe pipe = plane->pipe;
+       int scaler_id = plane_state->scaler_id;
+       const struct intel_scaler *scaler =
+               &crtc_state->scaler_state.scalers[scaler_id];
+       int crtc_x = plane_state->base.dst.x1;
+       int crtc_y = plane_state->base.dst.y1;
+       uint32_t crtc_w = drm_rect_width(&plane_state->base.dst);
+       uint32_t crtc_h = drm_rect_height(&plane_state->base.dst);
+       u16 y_hphase, uv_rgb_hphase;
+       u16 y_vphase, uv_rgb_vphase;
+
+       /* Sizes are 0 based */
+       crtc_w--;
+       crtc_h--;
+
+       /* TODO: handle sub-pixel coordinates */
+       if (plane_state->base.fb->format->format == DRM_FORMAT_NV12) {
+               y_hphase = skl_scaler_calc_phase(1, false);
+               y_vphase = skl_scaler_calc_phase(1, false);
+
+               /* MPEG2 chroma siting convention */
+               uv_rgb_hphase = skl_scaler_calc_phase(2, true);
+               uv_rgb_vphase = skl_scaler_calc_phase(2, false);
+       } else {
+               /* not used */
+               y_hphase = 0;
+               y_vphase = 0;
+
+               uv_rgb_hphase = skl_scaler_calc_phase(1, false);
+               uv_rgb_vphase = skl_scaler_calc_phase(1, false);
+       }
+
+       I915_WRITE_FW(SKL_PS_CTRL(pipe, scaler_id),
+                     PS_SCALER_EN | PS_PLANE_SEL(plane_id) | scaler->mode);
+       I915_WRITE_FW(SKL_PS_PWR_GATE(pipe, scaler_id), 0);
+       I915_WRITE_FW(SKL_PS_VPHASE(pipe, scaler_id),
+                     PS_Y_PHASE(y_vphase) | PS_UV_RGB_PHASE(uv_rgb_vphase));
+       I915_WRITE_FW(SKL_PS_HPHASE(pipe, scaler_id),
+                     PS_Y_PHASE(y_hphase) | PS_UV_RGB_PHASE(uv_rgb_hphase));
+       I915_WRITE_FW(SKL_PS_WIN_POS(pipe, scaler_id), (crtc_x << 16) | crtc_y);
+       I915_WRITE_FW(SKL_PS_WIN_SZ(pipe, scaler_id),
+                     ((crtc_w + 1) << 16)|(crtc_h + 1));
+}
+
 void
 skl_update_plane(struct intel_plane *plane,
                 const struct intel_crtc_state *crtc_state,
                 const struct intel_plane_state *plane_state)
 {
        struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
-       const struct drm_framebuffer *fb = plane_state->base.fb;
        enum plane_id plane_id = plane->id;
        enum pipe pipe = plane->pipe;
        u32 plane_ctl = plane_state->ctl;
@@ -296,8 +346,6 @@ skl_update_plane(struct intel_plane *plane,
        u32 aux_stride = skl_plane_stride(plane_state, 1);
        int crtc_x = plane_state->base.dst.x1;
        int crtc_y = plane_state->base.dst.y1;
-       uint32_t crtc_w = drm_rect_width(&plane_state->base.dst);
-       uint32_t crtc_h = drm_rect_height(&plane_state->base.dst);
        uint32_t x = plane_state->color_plane[0].x;
        uint32_t y = plane_state->color_plane[0].y;
        uint32_t src_w = drm_rect_width(&plane_state->base.src) >> 16;
@@ -307,8 +355,6 @@ skl_update_plane(struct intel_plane *plane,
        /* Sizes are 0 based */
        src_w--;
        src_h--;
-       crtc_w--;
-       crtc_h--;
 
        spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
 
@@ -333,39 +379,7 @@ skl_update_plane(struct intel_plane *plane,
 
        /* program plane scaler */
        if (plane_state->scaler_id >= 0) {
-               int scaler_id = plane_state->scaler_id;
-               const struct intel_scaler *scaler =
-                       &crtc_state->scaler_state.scalers[scaler_id];
-               u16 y_hphase, uv_rgb_hphase;
-               u16 y_vphase, uv_rgb_vphase;
-
-               /* TODO: handle sub-pixel coordinates */
-               if (fb->format->format == DRM_FORMAT_NV12) {
-                       y_hphase = skl_scaler_calc_phase(1, false);
-                       y_vphase = skl_scaler_calc_phase(1, false);
-
-                       /* MPEG2 chroma siting convention */
-                       uv_rgb_hphase = skl_scaler_calc_phase(2, true);
-                       uv_rgb_vphase = skl_scaler_calc_phase(2, false);
-               } else {
-                       /* not used */
-                       y_hphase = 0;
-                       y_vphase = 0;
-
-                       uv_rgb_hphase = skl_scaler_calc_phase(1, false);
-                       uv_rgb_vphase = skl_scaler_calc_phase(1, false);
-               }
-
-               I915_WRITE_FW(SKL_PS_CTRL(pipe, scaler_id),
-                             PS_SCALER_EN | PS_PLANE_SEL(plane_id) | scaler->mode);
-               I915_WRITE_FW(SKL_PS_PWR_GATE(pipe, scaler_id), 0);
-               I915_WRITE_FW(SKL_PS_VPHASE(pipe, scaler_id),
-                             PS_Y_PHASE(y_vphase) | PS_UV_RGB_PHASE(uv_rgb_vphase));
-               I915_WRITE_FW(SKL_PS_HPHASE(pipe, scaler_id),
-                             PS_Y_PHASE(y_hphase) | PS_UV_RGB_PHASE(uv_rgb_hphase));
-               I915_WRITE_FW(SKL_PS_WIN_POS(pipe, scaler_id), (crtc_x << 16) | crtc_y);
-               I915_WRITE_FW(SKL_PS_WIN_SZ(pipe, scaler_id),
-                             ((crtc_w + 1) << 16)|(crtc_h + 1));
+               skl_program_scaler(dev_priv, plane, crtc_state, plane_state);
 
                I915_WRITE_FW(PLANE_POS(pipe, plane_id), 0);
        } else {