drm/i915: Nuke plane->can_scale/min_downscale

We can easily calculate the plane can_scale/min_downscale on demand.
And later on we'll probably want to start calculating these dynamically
based on the cdclk just as skl already does.

Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180907152413.15761-9-ville.syrjala@linux.intel.com

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 31ce156..f1f0a25 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13742,12 +13742,8 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
 
        primary->base.state = &state->base;
 
-       primary->can_scale = false;
-       primary->max_downscale = 1;
-       if (INTEL_GEN(dev_priv) >= 9) {
-               primary->can_scale = true;
+       if (INTEL_GEN(dev_priv) >= 9)
                state->scaler_id = -1;
-       }
        primary->pipe = pipe;
        /*
         * On gen2/3 only plane A can do FBC, but the panel fitter and LVDS
@@ -13915,8 +13911,6 @@ intel_cursor_plane_create(struct drm_i915_private *dev_priv,
 
        cursor->base.state = &state->base;
 
-       cursor->can_scale = false;
-       cursor->max_downscale = 1;
        cursor->pipe = pipe;
        cursor->i9xx_plane = (enum i9xx_plane_id) pipe;
        cursor->id = PLANE_CURSOR;

diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 025d026..2afe307 100644 (file)
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -952,10 +952,8 @@ struct intel_plane {
        enum i9xx_plane_id i9xx_plane;
        enum plane_id id;
        enum pipe pipe;
-       bool can_scale;
        bool has_fbc;
        bool has_ccs;
-       int max_downscale;
        uint32_t frontbuffer_bit;
 
        struct {

diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index ee98c7b..aa4d82e 100644 (file)
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -767,7 +767,7 @@ ivb_update_plane(struct intel_plane *plane,
                I915_WRITE_FW(SPRLINOFF(pipe), linear_offset);
 
        I915_WRITE_FW(SPRSIZE(pipe), (crtc_h << 16) | crtc_w);
-       if (plane->can_scale)
+       if (IS_IVYBRIDGE(dev_priv))
                I915_WRITE_FW(SPRSCALE(pipe), sprscale);
        I915_WRITE_FW(SPRCTL(pipe), sprctl);
        I915_WRITE_FW(SPRSURF(pipe),
@@ -788,7 +788,7 @@ ivb_disable_plane(struct intel_plane *plane, struct intel_crtc *crtc)
 
        I915_WRITE_FW(SPRCTL(pipe), 0);
        /* Can't leave the scaler enabled... */
-       if (plane->can_scale)
+       if (IS_IVYBRIDGE(dev_priv))
                I915_WRITE_FW(SPRSCALE(pipe), 0);
 
        I915_WRITE_FW(SPRSURF(pipe), 0);
@@ -993,7 +993,6 @@ intel_check_sprite_plane(struct intel_crtc_state *crtc_state,
        struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
        struct drm_framebuffer *fb = state->base.fb;
        int max_scale, min_scale;
-       bool can_scale;
        int ret;
        uint32_t pixel_format = 0;
 
@@ -1016,25 +1015,29 @@ intel_check_sprite_plane(struct intel_crtc_state *crtc_state,
                return -EINVAL;
        }
 
-       /* setup can_scale, min_scale, max_scale */
        if (INTEL_GEN(dev_priv) >= 9) {
                if (state->base.fb)
                        pixel_format = state->base.fb->format->format;
                /* use scaler when colorkey is not required */
                if (!state->ckey.flags) {
-                       can_scale = 1;
                        min_scale = 1;
                        max_scale =
                                skl_max_scale(crtc, crtc_state, pixel_format);
                } else {
-                       can_scale = 0;
                        min_scale = DRM_PLANE_HELPER_NO_SCALING;
                        max_scale = DRM_PLANE_HELPER_NO_SCALING;
                }
        } else {
-               can_scale = plane->can_scale;
-               max_scale = plane->max_downscale << 16;
-               min_scale = plane->can_scale ? 1 : (1 << 16);
+               if (INTEL_GEN(dev_priv) < 7) {
+                       min_scale = 1;
+                       max_scale = 16 << 16;
+               } else if (IS_IVYBRIDGE(dev_priv)) {
+                       min_scale = 1;
+                       max_scale = 2 << 16;
+               } else {
+                       min_scale = DRM_PLANE_HELPER_NO_SCALING;
+                       max_scale = DRM_PLANE_HELPER_NO_SCALING;
+               }
        }
 
        ret = drm_atomic_helper_check_plane_state(&state->base,
@@ -1080,8 +1083,6 @@ intel_check_sprite_plane(struct intel_crtc_state *crtc_state,
                        unsigned int width_bytes;
                        int cpp = fb->format->cpp[0];
 
-                       WARN_ON(!can_scale);
-
                        width_bytes = ((src_x * cpp) & 63) + src_w * cpp;
 
                        /* FIXME interlacing min height is 6 */
@@ -1550,7 +1551,6 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
        intel_plane->base.state = &state->base;
 
        if (INTEL_GEN(dev_priv) >= 9) {
-               intel_plane->can_scale = true;
                state->scaler_id = -1;
 
                intel_plane->has_ccs = skl_plane_has_ccs(dev_priv, pipe,
@@ -1577,9 +1577,6 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
 
                plane_funcs = &skl_plane_funcs;
        } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
-               intel_plane->can_scale = false;
-               intel_plane->max_downscale = 1;
-
                intel_plane->max_stride = i9xx_plane_max_stride;
                intel_plane->update_plane = vlv_update_plane;
                intel_plane->disable_plane = vlv_disable_plane;
@@ -1591,14 +1588,6 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
 
                plane_funcs = &vlv_sprite_funcs;
        } else if (INTEL_GEN(dev_priv) >= 7) {
-               if (IS_IVYBRIDGE(dev_priv)) {
-                       intel_plane->can_scale = true;
-                       intel_plane->max_downscale = 2;
-               } else {
-                       intel_plane->can_scale = false;
-                       intel_plane->max_downscale = 1;
-               }
-
                intel_plane->max_stride = g4x_sprite_max_stride;
                intel_plane->update_plane = ivb_update_plane;
                intel_plane->disable_plane = ivb_disable_plane;
@@ -1610,9 +1599,6 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
 
                plane_funcs = &snb_sprite_funcs;
        } else {
-               intel_plane->can_scale = true;
-               intel_plane->max_downscale = 16;
-
                intel_plane->max_stride = g4x_sprite_max_stride;
                intel_plane->update_plane = g4x_update_plane;
                intel_plane->disable_plane = g4x_disable_plane;