drm/i915: s/enum plane/enum i9xx_plane_id/

Rename enum plane to enum i9xx_plane_id to make it clear that it only
applies to pre-SKL platforms.

enum i9xx_plane_id is a global identifier, whereas enum plane_id is
per-pipe. We need the old global identifier to index the primary plane
(and the pre-g4x sprite C if we ever expose it) registers on pre-SKL
platforms.

v2: Reorder patches
v3: s/old_plane_id/i9xx_plane_id/ (Daniel)
    Pimp the commit message a bit
    Note that i9xx_plane_id doesn't apply to SKL+
v4: Rebase due to power domain handling in plane readout
v5: Rebase due to crtc->dspaddr_offset removal
v6: s/plane/i9xx_plane/ etc. (James)

Cc: James Ausmus <james.ausmus@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20171117191917.11506-4-ville.syrjala@linux.intel.com
Reviewed-by: James Ausmus <james.ausmus@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

drivers/gpu/drm/i915/i915_drv.h

@@ -304,9 +304,9 @@ static inline bool transcoder_is_dsi(enum transcoder transcoder)
 
 /*
  * Global legacy plane identifier. Valid only for primary/sprite
- * planes on pre-g4x, and only for primary planes on g4x+.
+ * planes on pre-g4x, and only for primary planes on g4x-bdw.
  */
-enum plane {
+enum i9xx_plane_id {
 	PLANE_A,
 	PLANE_B,
 	PLANE_C,
@@ -1144,7 +1144,7 @@ struct intel_fbc {
 
 		struct {
 			enum pipe pipe;
-			enum plane plane;
+			enum i9xx_plane_id i9xx_plane;
 			unsigned int fence_y_offset;
 		} crtc;
 

drivers/gpu/drm/i915/intel_display.c

@@ -3220,16 +3220,16 @@ int i9xx_check_plane_surface(struct intel_plane_state *plane_state)
 	return 0;
 }
 
-static void i9xx_update_primary_plane(struct intel_plane *primary,
-				      const struct intel_crtc_state *crtc_state,
-				      const struct intel_plane_state *plane_state)
+static void i9xx_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(primary->base.dev);
+	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
 	const struct drm_framebuffer *fb = plane_state->base.fb;
-	enum plane plane = primary->plane;
+	enum i9xx_plane_id i9xx_plane = plane->i9xx_plane;
 	u32 linear_offset;
 	u32 dspcntr = plane_state->ctl;
-	i915_reg_t reg = DSPCNTR(plane);
+	i915_reg_t reg = DSPCNTR(i9xx_plane);
 	int x = plane_state->main.x;
 	int y = plane_state->main.y;
 	unsigned long irqflags;
@@ -3248,34 +3248,34 @@ static void i9xx_update_primary_plane(struct intel_plane *primary,
 		/* pipesrc and dspsize control the size that is scaled from,
 		 * which should always be the user's requested size.
 		 */
-		I915_WRITE_FW(DSPSIZE(plane),
+		I915_WRITE_FW(DSPSIZE(i9xx_plane),
 			      ((crtc_state->pipe_src_h - 1) << 16) |
 			      (crtc_state->pipe_src_w - 1));
-		I915_WRITE_FW(DSPPOS(plane), 0);
-	} else if (IS_CHERRYVIEW(dev_priv) && plane == PLANE_B) {
-		I915_WRITE_FW(PRIMSIZE(plane),
+		I915_WRITE_FW(DSPPOS(i9xx_plane), 0);
+	} else if (IS_CHERRYVIEW(dev_priv) && i9xx_plane == PLANE_B) {
+		I915_WRITE_FW(PRIMSIZE(i9xx_plane),
 			      ((crtc_state->pipe_src_h - 1) << 16) |
 			      (crtc_state->pipe_src_w - 1));
-		I915_WRITE_FW(PRIMPOS(plane), 0);
-		I915_WRITE_FW(PRIMCNSTALPHA(plane), 0);
+		I915_WRITE_FW(PRIMPOS(i9xx_plane), 0);
+		I915_WRITE_FW(PRIMCNSTALPHA(i9xx_plane), 0);
 	}
 
 	I915_WRITE_FW(reg, dspcntr);
 
-	I915_WRITE_FW(DSPSTRIDE(plane), fb->pitches[0]);
+	I915_WRITE_FW(DSPSTRIDE(i9xx_plane), fb->pitches[0]);
 	if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
-		I915_WRITE_FW(DSPSURF(plane),
+		I915_WRITE_FW(DSPSURF(i9xx_plane),
 			      intel_plane_ggtt_offset(plane_state) +
 			      dspaddr_offset);
-		I915_WRITE_FW(DSPOFFSET(plane), (y << 16) | x);
+		I915_WRITE_FW(DSPOFFSET(i9xx_plane), (y << 16) | x);
 	} else if (INTEL_GEN(dev_priv) >= 4) {
-		I915_WRITE_FW(DSPSURF(plane),
+		I915_WRITE_FW(DSPSURF(i9xx_plane),
 			      intel_plane_ggtt_offset(plane_state) +
 			      dspaddr_offset);
-		I915_WRITE_FW(DSPTILEOFF(plane), (y << 16) | x);
-		I915_WRITE_FW(DSPLINOFF(plane), linear_offset);
+		I915_WRITE_FW(DSPTILEOFF(i9xx_plane), (y << 16) | x);
+		I915_WRITE_FW(DSPLINOFF(i9xx_plane), linear_offset);
 	} else {
-		I915_WRITE_FW(DSPADDR(plane),
+		I915_WRITE_FW(DSPADDR(i9xx_plane),
 			      intel_plane_ggtt_offset(plane_state) +
 			      dspaddr_offset);
 	}
@@ -3284,32 +3284,31 @@ static void i9xx_update_primary_plane(struct intel_plane *primary,
 	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
 }
 
-static void i9xx_disable_primary_plane(struct intel_plane *primary,
-				       struct intel_crtc *crtc)
+static void i9xx_disable_plane(struct intel_plane *plane,
+			       struct intel_crtc *crtc)
 {
-	struct drm_i915_private *dev_priv = to_i915(primary->base.dev);
-	enum plane plane = primary->plane;
+	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
+	enum i9xx_plane_id i9xx_plane = plane->i9xx_plane;
 	unsigned long irqflags;
 
 	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
 
-	I915_WRITE_FW(DSPCNTR(plane), 0);
-	if (INTEL_INFO(dev_priv)->gen >= 4)
-		I915_WRITE_FW(DSPSURF(plane), 0);
+	I915_WRITE_FW(DSPCNTR(i9xx_plane), 0);
+	if (INTEL_GEN(dev_priv) >= 4)
+		I915_WRITE_FW(DSPSURF(i9xx_plane), 0);
 	else
-		I915_WRITE_FW(DSPADDR(plane), 0);
-	POSTING_READ_FW(DSPCNTR(plane));
+		I915_WRITE_FW(DSPADDR(i9xx_plane), 0);
+	POSTING_READ_FW(DSPCNTR(i9xx_plane));
 
 	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
 }
 
-static bool i9xx_plane_get_hw_state(struct intel_plane *primary)
+static bool i9xx_plane_get_hw_state(struct intel_plane *plane)
 {
-
-	struct drm_i915_private *dev_priv = to_i915(primary->base.dev);
+	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
 	enum intel_display_power_domain power_domain;
-	enum plane plane = primary->plane;
-	enum pipe pipe = primary->pipe;
+	enum i9xx_plane_id i9xx_plane = plane->i9xx_plane;
+	enum pipe pipe = plane->pipe;
 	bool ret;
 
 	/*
@@ -3321,7 +3320,7 @@ static bool i9xx_plane_get_hw_state(struct intel_plane *primary)
 	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
 		return false;
 
-	ret = I915_READ(DSPCNTR(plane)) & DISPLAY_PLANE_ENABLE;
+	ret = I915_READ(DSPCNTR(i9xx_plane)) & DISPLAY_PLANE_ENABLE;
 
 	intel_display_power_put(dev_priv, power_domain);
 
@@ -7406,7 +7405,7 @@ i9xx_get_initial_plane_config(struct intel_crtc *crtc,
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	u32 val, base, offset;
-	int pipe = crtc->pipe, plane = crtc->plane;
+	int pipe = crtc->pipe, plane = crtc->i9xx_plane;
 	int fourcc, pixel_format;
 	unsigned int aligned_height;
 	struct drm_framebuffer *fb;
@@ -13272,9 +13271,9 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
 	 * port is hooked to pipe B. Hence we want plane A feeding pipe B.
 	 */
 	if (HAS_FBC(dev_priv) && INTEL_GEN(dev_priv) < 4)
-		primary->plane = (enum plane) !pipe;
+		primary->i9xx_plane = (enum i9xx_plane_id) !pipe;
 	else
-		primary->plane = (enum plane) pipe;
+		primary->i9xx_plane = (enum i9xx_plane_id) pipe;
 	primary->id = PLANE_PRIMARY;
 	primary->frontbuffer_bit = INTEL_FRONTBUFFER_PRIMARY(pipe);
 	primary->check_plane = intel_check_primary_plane;
@@ -13303,16 +13302,16 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
 		num_formats = ARRAY_SIZE(i965_primary_formats);
 		modifiers = i9xx_format_modifiers;
 
-		primary->update_plane = i9xx_update_primary_plane;
-		primary->disable_plane = i9xx_disable_primary_plane;
+		primary->update_plane = i9xx_update_plane;
+		primary->disable_plane = i9xx_disable_plane;
 		primary->get_hw_state = i9xx_plane_get_hw_state;
 	} else {
 		intel_primary_formats = i8xx_primary_formats;
 		num_formats = ARRAY_SIZE(i8xx_primary_formats);
 		modifiers = i9xx_format_modifiers;
 
-		primary->update_plane = i9xx_update_primary_plane;
-		primary->disable_plane = i9xx_disable_primary_plane;
+		primary->update_plane = i9xx_update_plane;
+		primary->disable_plane = i9xx_disable_plane;
 		primary->get_hw_state = i9xx_plane_get_hw_state;
 	}
 
@@ -13336,7 +13335,8 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
 					       intel_primary_formats, num_formats,
 					       modifiers,
 					       DRM_PLANE_TYPE_PRIMARY,
-					       "plane %c", plane_name(primary->plane));
+					       "plane %c",
+					       plane_name(primary->i9xx_plane));
 	if (ret)
 		goto fail;
 
@@ -13396,7 +13396,7 @@ intel_cursor_plane_create(struct drm_i915_private *dev_priv,
 	cursor->can_scale = false;
 	cursor->max_downscale = 1;
 	cursor->pipe = pipe;
-	cursor->plane = pipe;
+	cursor->i9xx_plane = (enum i9xx_plane_id) pipe;
 	cursor->id = PLANE_CURSOR;
 	cursor->frontbuffer_bit = INTEL_FRONTBUFFER_CURSOR(pipe);
 
@@ -13524,14 +13524,14 @@ static int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe)
 		goto fail;
 
 	intel_crtc->pipe = pipe;
-	intel_crtc->plane = primary->plane;
+	intel_crtc->i9xx_plane = primary->i9xx_plane;
 
 	/* initialize shared scalers */
 	intel_crtc_init_scalers(intel_crtc, crtc_state);
 
 	BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
-	       dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL);
-	dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = intel_crtc;
+	       dev_priv->plane_to_crtc_mapping[intel_crtc->i9xx_plane] != NULL);
+	dev_priv->plane_to_crtc_mapping[intel_crtc->i9xx_plane] = intel_crtc;
 	dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = intel_crtc;
 
 	drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);
@@ -14788,11 +14788,11 @@ void i830_disable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe)
 }
 
 static bool intel_plane_mapping_ok(struct intel_crtc *crtc,
-				   struct intel_plane *primary)
+				   struct intel_plane *plane)
 {
 	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	enum plane plane = primary->plane;
-	u32 val = I915_READ(DSPCNTR(plane));
+	enum i9xx_plane_id i9xx_plane = plane->i9xx_plane;
+	u32 val = I915_READ(DSPCNTR(i9xx_plane));
 
 	return (val & DISPLAY_PLANE_ENABLE) == 0 ||
 		(val & DISPPLANE_SEL_PIPE_MASK) == DISPPLANE_SEL_PIPE(crtc->pipe);

drivers/gpu/drm/i915/intel_drv.h

@@ -799,7 +799,7 @@ struct intel_crtc_state {
 struct intel_crtc {
 	struct drm_crtc base;
 	enum pipe pipe;
-	enum plane plane;
+	enum i9xx_plane_id i9xx_plane;
 	/*
 	 * Whether the crtc and the connected output pipeline is active. Implies
 	 * that crtc->enabled is set, i.e. the current mode configuration has
@@ -844,7 +844,7 @@ struct intel_crtc {
 
 struct intel_plane {
 	struct drm_plane base;
-	u8 plane;
+	enum i9xx_plane_id i9xx_plane;
 	enum plane_id id;
 	enum pipe pipe;
 	bool can_scale;
@@ -1130,7 +1130,7 @@ intel_get_crtc_for_pipe(struct drm_i915_private *dev_priv, enum pipe pipe)
 }
 
 static inline struct intel_crtc *
-intel_get_crtc_for_plane(struct drm_i915_private *dev_priv, enum plane plane)
+intel_get_crtc_for_plane(struct drm_i915_private *dev_priv, enum i9xx_plane_id plane)
 {
 	return dev_priv->plane_to_crtc_mapping[plane];
 }

drivers/gpu/drm/i915/intel_fbc.c

@@ -151,7 +151,7 @@ static void i8xx_fbc_activate(struct drm_i915_private *dev_priv)
 
 		/* Set it up... */
 		fbc_ctl2 = FBC_CTL_FENCE_DBL | FBC_CTL_IDLE_IMM | FBC_CTL_CPU_FENCE;
-		fbc_ctl2 |= FBC_CTL_PLANE(params->crtc.plane);
+		fbc_ctl2 |= FBC_CTL_PLANE(params->crtc.i9xx_plane);
 		I915_WRITE(FBC_CONTROL2, fbc_ctl2);
 		I915_WRITE(FBC_FENCE_OFF, params->crtc.fence_y_offset);
 	}
@@ -177,7 +177,7 @@ static void g4x_fbc_activate(struct drm_i915_private *dev_priv)
 	struct intel_fbc_reg_params *params = &dev_priv->fbc.params;
 	u32 dpfc_ctl;
 
-	dpfc_ctl = DPFC_CTL_PLANE(params->crtc.plane) | DPFC_SR_EN;
+	dpfc_ctl = DPFC_CTL_PLANE(params->crtc.i9xx_plane) | DPFC_SR_EN;
 	if (params->fb.format->cpp[0] == 2)
 		dpfc_ctl |= DPFC_CTL_LIMIT_2X;
 	else
@@ -224,7 +224,7 @@ static void ilk_fbc_activate(struct drm_i915_private *dev_priv)
 	u32 dpfc_ctl;
 	int threshold = dev_priv->fbc.threshold;
 
-	dpfc_ctl = DPFC_CTL_PLANE(params->crtc.plane);
+	dpfc_ctl = DPFC_CTL_PLANE(params->crtc.i9xx_plane);
 	if (params->fb.format->cpp[0] == 2)
 		threshold++;
 
@@ -306,7 +306,7 @@ static void gen7_fbc_activate(struct drm_i915_private *dev_priv)
 
 	dpfc_ctl = 0;
 	if (IS_IVYBRIDGE(dev_priv))
-		dpfc_ctl |= IVB_DPFC_CTL_PLANE(params->crtc.plane);
+		dpfc_ctl |= IVB_DPFC_CTL_PLANE(params->crtc.i9xx_plane);
 
 	if (params->fb.format->cpp[0] == 2)
 		threshold++;
@@ -890,7 +890,7 @@ static void intel_fbc_get_reg_params(struct intel_crtc *crtc,
 	params->vma = cache->vma;
 
 	params->crtc.pipe = crtc->pipe;
-	params->crtc.plane = crtc->plane;
+	params->crtc.i9xx_plane = crtc->i9xx_plane;
 	params->crtc.fence_y_offset = get_crtc_fence_y_offset(fbc);
 
 	params->fb.format = cache->fb.format;
@@ -1088,7 +1088,7 @@ void intel_fbc_choose_crtc(struct drm_i915_private *dev_priv,
 		if (fbc_on_pipe_a_only(dev_priv) && crtc->pipe != PIPE_A)
 			continue;
 
-		if (fbc_on_plane_a_only(dev_priv) && crtc->plane != PLANE_A)
+		if (fbc_on_plane_a_only(dev_priv) && crtc->i9xx_plane != PLANE_A)
 			continue;
 
 		intel_crtc_state = to_intel_crtc_state(

drivers/gpu/drm/i915/intel_sprite.c

@@ -1384,7 +1384,7 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
 	}
 
 	intel_plane->pipe = pipe;
-	intel_plane->plane = plane;
+	intel_plane->i9xx_plane = plane;
 	intel_plane->id = PLANE_SPRITE0 + plane;
 	intel_plane->frontbuffer_bit = INTEL_FRONTBUFFER_SPRITE(pipe, plane);
 	intel_plane->check_plane = intel_check_sprite_plane;