[PATCH 5/9] drm/i915: Use enum plane_id in SKL plane code

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From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

Replace the intel_plane->plane and hardcoded 0 usage in the SKL plane
code with intel_plane->id.

This should make the SKL "primary" and "sprite" code virtually
identical, so the next logical step would likely be dropping one
of the copies.

Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/intel_display.c | 34 ++++++++++++------------
 drivers/gpu/drm/i915/intel_sprite.c  | 50 ++++++++++++++++++------------------
 2 files changed, 43 insertions(+), 41 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index e3ed5d1fcf0d..95644c8cc568 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3384,9 +3384,10 @@ static void skylake_update_primary_plane(struct drm_plane *plane,
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc);
 	struct drm_framebuffer *fb = plane_state->base.fb;
+	enum plane_id plane_id = to_intel_plane(plane)->id;
 	const struct skl_wm_values *wm = &dev_priv->wm.skl_results;
 	const struct skl_plane_wm *p_wm =
-		&crtc_state->wm.skl.optimal.planes[0];
+		&crtc_state->wm.skl.optimal.planes[plane_id];
 	int pipe = intel_crtc->pipe;
 	u32 plane_ctl;
 	unsigned int rotation = plane_state->base.rotation;
@@ -3423,32 +3424,32 @@ static void skylake_update_primary_plane(struct drm_plane *plane,
 	intel_crtc->adjusted_y = src_y;
 
 	if (wm->dirty_pipes & drm_crtc_mask(&intel_crtc->base))
-		skl_write_plane_wm(intel_crtc, p_wm, &wm->ddb, 0);
+		skl_write_plane_wm(intel_crtc, p_wm, &wm->ddb, plane_id);
 
-	I915_WRITE(PLANE_CTL(pipe, 0), plane_ctl);
-	I915_WRITE(PLANE_OFFSET(pipe, 0), (src_y << 16) | src_x);
-	I915_WRITE(PLANE_STRIDE(pipe, 0), stride);
-	I915_WRITE(PLANE_SIZE(pipe, 0), (src_h << 16) | src_w);
+	I915_WRITE(PLANE_CTL(pipe, plane_id), plane_ctl);
+	I915_WRITE(PLANE_OFFSET(pipe, plane_id), (src_y << 16) | src_x);
+	I915_WRITE(PLANE_STRIDE(pipe, plane_id), stride);
+	I915_WRITE(PLANE_SIZE(pipe, plane_id), (src_h << 16) | src_w);
 
 	if (scaler_id >= 0) {
 		uint32_t ps_ctrl = 0;
 
 		WARN_ON(!dst_w || !dst_h);
-		ps_ctrl = PS_SCALER_EN | PS_PLANE_SEL(0) |
+		ps_ctrl = PS_SCALER_EN | PS_PLANE_SEL(plane_id) |
 			crtc_state->scaler_state.scalers[scaler_id].mode;
 		I915_WRITE(SKL_PS_CTRL(pipe, scaler_id), ps_ctrl);
 		I915_WRITE(SKL_PS_PWR_GATE(pipe, scaler_id), 0);
 		I915_WRITE(SKL_PS_WIN_POS(pipe, scaler_id), (dst_x << 16) | dst_y);
 		I915_WRITE(SKL_PS_WIN_SZ(pipe, scaler_id), (dst_w << 16) | dst_h);
-		I915_WRITE(PLANE_POS(pipe, 0), 0);
+		I915_WRITE(PLANE_POS(pipe, plane_id), 0);
 	} else {
-		I915_WRITE(PLANE_POS(pipe, 0), (dst_y << 16) | dst_x);
+		I915_WRITE(PLANE_POS(pipe, plane_id), (dst_y << 16) | dst_x);
 	}
 
-	I915_WRITE(PLANE_SURF(pipe, 0),
+	I915_WRITE(PLANE_SURF(pipe, plane_id),
 		   intel_fb_gtt_offset(fb, rotation) + surf_addr);
 
-	POSTING_READ(PLANE_SURF(pipe, 0));
+	POSTING_READ(PLANE_SURF(pipe, plane_id));
 }
 
 static void skylake_disable_primary_plane(struct drm_plane *primary,
@@ -3458,7 +3459,8 @@ static void skylake_disable_primary_plane(struct drm_plane *primary,
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->state);
-	const struct skl_plane_wm *p_wm = &cstate->wm.skl.optimal.planes[0];
+	enum plane_id plane_id = to_intel_plane(primary)->id;
+	const struct skl_plane_wm *p_wm = &cstate->wm.skl.optimal.planes[plane_id];
 	int pipe = intel_crtc->pipe;
 
 	/*
@@ -3467,11 +3469,11 @@ static void skylake_disable_primary_plane(struct drm_plane *primary,
 	 */
 	if (!crtc->primary->state->visible)
 		skl_write_plane_wm(intel_crtc, p_wm,
-				   &dev_priv->wm.skl_results.ddb, 0);
+				   &dev_priv->wm.skl_results.ddb, plane_id);
 
-	I915_WRITE(PLANE_CTL(pipe, 0), 0);
-	I915_WRITE(PLANE_SURF(pipe, 0), 0);
-	POSTING_READ(PLANE_SURF(pipe, 0));
+	I915_WRITE(PLANE_CTL(pipe, plane_id), 0);
+	I915_WRITE(PLANE_SURF(pipe, plane_id), 0);
+	POSTING_READ(PLANE_SURF(pipe, plane_id));
 }
 
 /* Assume fb object is pinned & idle & fenced and just update base pointers */
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 4b44863a07c2..91d47d19f4a9 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -203,13 +203,13 @@ skl_update_plane(struct drm_plane *drm_plane,
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_plane *intel_plane = to_intel_plane(drm_plane);
 	struct drm_framebuffer *fb = plane_state->base.fb;
+	enum plane_id plane_id = intel_plane->id;
 	const struct skl_wm_values *wm = &dev_priv->wm.skl_results;
 	struct drm_crtc *crtc = crtc_state->base.crtc;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	const int pipe = intel_plane->pipe;
-	const int plane = intel_plane->plane + 1;
+	enum pipe pipe = intel_plane->pipe;
 	const struct skl_plane_wm *p_wm =
-		&crtc_state->wm.skl.optimal.planes[plane];
+		&crtc_state->wm.skl.optimal.planes[plane_id];
 	u32 plane_ctl;
 	const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
 	u32 surf_addr = plane_state->main.offset;
@@ -234,12 +234,12 @@ skl_update_plane(struct drm_plane *drm_plane,
 	plane_ctl |= skl_plane_ctl_rotation(rotation);
 
 	if (wm->dirty_pipes & drm_crtc_mask(crtc))
-		skl_write_plane_wm(intel_crtc, p_wm, &wm->ddb, plane);
+		skl_write_plane_wm(intel_crtc, p_wm, &wm->ddb, plane_id);
 
 	if (key->flags) {
-		I915_WRITE(PLANE_KEYVAL(pipe, plane), key->min_value);
-		I915_WRITE(PLANE_KEYMAX(pipe, plane), key->max_value);
-		I915_WRITE(PLANE_KEYMSK(pipe, plane), key->channel_mask);
+		I915_WRITE(PLANE_KEYVAL(pipe, plane_id), key->min_value);
+		I915_WRITE(PLANE_KEYMAX(pipe, plane_id), key->max_value);
+		I915_WRITE(PLANE_KEYMSK(pipe, plane_id), key->channel_mask);
 	}
 
 	if (key->flags & I915_SET_COLORKEY_DESTINATION)
@@ -253,36 +253,36 @@ skl_update_plane(struct drm_plane *drm_plane,
 	crtc_w--;
 	crtc_h--;
 
-	I915_WRITE(PLANE_OFFSET(pipe, plane), (y << 16) | x);
-	I915_WRITE(PLANE_STRIDE(pipe, plane), stride);
-	I915_WRITE(PLANE_SIZE(pipe, plane), (src_h << 16) | src_w);
+	I915_WRITE(PLANE_OFFSET(pipe, plane_id), (y << 16) | x);
+	I915_WRITE(PLANE_STRIDE(pipe, plane_id), stride);
+	I915_WRITE(PLANE_SIZE(pipe, plane_id), (src_h << 16) | src_w);
 
 	/* program plane scaler */
 	if (plane_state->scaler_id >= 0) {
 		int scaler_id = plane_state->scaler_id;
 		const struct intel_scaler *scaler;
 
-		DRM_DEBUG_KMS("plane = %d PS_PLANE_SEL(plane) = 0x%x\n", plane,
-			PS_PLANE_SEL(plane));
+		DRM_DEBUG_KMS("plane = %d PS_PLANE_SEL(plane) = 0x%x\n", plane_id,
+			      PS_PLANE_SEL(plane_id));
 
 		scaler = &crtc_state->scaler_state.scalers[scaler_id];
 
 		I915_WRITE(SKL_PS_CTRL(pipe, scaler_id),
-			   PS_SCALER_EN | PS_PLANE_SEL(plane) | scaler->mode);
+			   PS_SCALER_EN | PS_PLANE_SEL(plane_id) | scaler->mode);
 		I915_WRITE(SKL_PS_PWR_GATE(pipe, scaler_id), 0);
 		I915_WRITE(SKL_PS_WIN_POS(pipe, scaler_id), (crtc_x << 16) | crtc_y);
 		I915_WRITE(SKL_PS_WIN_SZ(pipe, scaler_id),
 			((crtc_w + 1) << 16)|(crtc_h + 1));
 
-		I915_WRITE(PLANE_POS(pipe, plane), 0);
+		I915_WRITE(PLANE_POS(pipe, plane_id), 0);
 	} else {
-		I915_WRITE(PLANE_POS(pipe, plane), (crtc_y << 16) | crtc_x);
+		I915_WRITE(PLANE_POS(pipe, plane_id), (crtc_y << 16) | crtc_x);
 	}
 
-	I915_WRITE(PLANE_CTL(pipe, plane), plane_ctl);
-	I915_WRITE(PLANE_SURF(pipe, plane),
+	I915_WRITE(PLANE_CTL(pipe, plane_id), plane_ctl);
+	I915_WRITE(PLANE_SURF(pipe, plane_id),
 		   intel_fb_gtt_offset(fb, rotation) + surf_addr);
-	POSTING_READ(PLANE_SURF(pipe, plane));
+	POSTING_READ(PLANE_SURF(pipe, plane_id));
 }
 
 static void
@@ -292,8 +292,8 @@ skl_disable_plane(struct drm_plane *dplane, struct drm_crtc *crtc)
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_plane *intel_plane = to_intel_plane(dplane);
 	struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->state);
-	const int pipe = intel_plane->pipe;
-	const int plane = intel_plane->plane + 1;
+	enum pipe pipe = intel_plane->pipe;
+	enum plane_id plane_id = intel_plane->id;
 
 	/*
 	 * We only populate skl_results on watermark updates, and if the
@@ -301,13 +301,13 @@ skl_disable_plane(struct drm_plane *dplane, struct drm_crtc *crtc)
 	 */
 	if (!dplane->state->visible)
 		skl_write_plane_wm(to_intel_crtc(crtc),
-				   &cstate->wm.skl.optimal.planes[plane],
-				   &dev_priv->wm.skl_results.ddb, plane);
+				   &cstate->wm.skl.optimal.planes[plane_id],
+				   &dev_priv->wm.skl_results.ddb, plane_id);
 
-	I915_WRITE(PLANE_CTL(pipe, plane), 0);
+	I915_WRITE(PLANE_CTL(pipe, plane_id), 0);
 
-	I915_WRITE(PLANE_SURF(pipe, plane), 0);
-	POSTING_READ(PLANE_SURF(pipe, plane));
+	I915_WRITE(PLANE_SURF(pipe, plane_id), 0);
+	POSTING_READ(PLANE_SURF(pipe, plane_id));
 }
 
 static void
-- 
2.7.4

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