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From: Ville Syrjala <ville.syrjala@linux.intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: [Intel-gfx] [PATCH 6/9] drm/i915/fbc: Introduce g4x_dpfc_ctl_limit()
Date: Thu, 10 Jun 2021 21:32:34 +0300	[thread overview]
Message-ID: <20210610183237.3920-7-ville.syrjala@linux.intel.com> (raw)
In-Reply-To: <20210610183237.3920-1-ville.syrjala@linux.intel.com>

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Exctract the limit->register value conversion into a common
helper.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_fbc.c | 58 ++++++++++--------------
 1 file changed, 25 insertions(+), 33 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c
index 1c220cea8977..31ac1163f55b 100644
--- a/drivers/gpu/drm/i915/display/intel_fbc.c
+++ b/drivers/gpu/drm/i915/display/intel_fbc.c
@@ -148,16 +148,35 @@ static bool i8xx_fbc_is_active(struct drm_i915_private *dev_priv)
 	return intel_de_read(dev_priv, FBC_CONTROL) & FBC_CTL_EN;
 }
 
+static u32 g4x_dpfc_ctl_limit(struct drm_i915_private *i915)
+{
+	const struct intel_fbc_reg_params *params = &i915->fbc.params;
+	int limit = i915->fbc.limit;
+
+	if (params->fb.format->cpp[0] == 2)
+		limit <<= 1;
+
+	switch (limit) {
+	default:
+		MISSING_CASE(limit);
+		fallthrough;
+	case 1:
+		return DPFC_CTL_LIMIT_1X;
+	case 2:
+		return DPFC_CTL_LIMIT_2X;
+	case 4:
+		return DPFC_CTL_LIMIT_4X;
+	}
+}
+
 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.i9xx_plane) | DPFC_SR_EN;
-	if (params->fb.format->cpp[0] == 2)
-		dpfc_ctl |= DPFC_CTL_LIMIT_2X;
-	else
-		dpfc_ctl |= DPFC_CTL_LIMIT_1X;
+
+	dpfc_ctl |= g4x_dpfc_ctl_limit(dev_priv);
 
 	if (params->fence_id >= 0) {
 		dpfc_ctl |= DPFC_CTL_FENCE_EN | params->fence_id;
@@ -235,23 +254,10 @@ static void ilk_fbc_activate(struct drm_i915_private *dev_priv)
 {
 	struct intel_fbc_reg_params *params = &dev_priv->fbc.params;
 	u32 dpfc_ctl;
-	int limit = dev_priv->fbc.limit;
 
 	dpfc_ctl = DPFC_CTL_PLANE(params->crtc.i9xx_plane);
-	if (params->fb.format->cpp[0] == 2)
-		limit <<= 1;
 
-	switch (limit) {
-	case 4:
-		dpfc_ctl |= DPFC_CTL_LIMIT_4X;
-		break;
-	case 2:
-		dpfc_ctl |= DPFC_CTL_LIMIT_2X;
-		break;
-	case 1:
-		dpfc_ctl |= DPFC_CTL_LIMIT_1X;
-		break;
-	}
+	dpfc_ctl |= g4x_dpfc_ctl_limit(dev_priv);
 
 	if (params->fence_id >= 0) {
 		dpfc_ctl |= DPFC_CTL_FENCE_EN;
@@ -299,7 +305,6 @@ static void gen7_fbc_activate(struct drm_i915_private *dev_priv)
 {
 	struct intel_fbc_reg_params *params = &dev_priv->fbc.params;
 	u32 dpfc_ctl;
-	int limit = dev_priv->fbc.limit;
 
 	/* Display WA #0529: skl, kbl, bxt. */
 	if (DISPLAY_VER(dev_priv) == 9) {
@@ -317,20 +322,7 @@ static void gen7_fbc_activate(struct drm_i915_private *dev_priv)
 	if (IS_IVYBRIDGE(dev_priv))
 		dpfc_ctl |= IVB_DPFC_CTL_PLANE(params->crtc.i9xx_plane);
 
-	if (params->fb.format->cpp[0] == 2)
-		limit <<= 1;
-
-	switch (limit) {
-	case 4:
-		dpfc_ctl |= DPFC_CTL_LIMIT_4X;
-		break;
-	case 2:
-		dpfc_ctl |= DPFC_CTL_LIMIT_2X;
-		break;
-	case 1:
-		dpfc_ctl |= DPFC_CTL_LIMIT_1X;
-		break;
-	}
+	dpfc_ctl |= g4x_dpfc_ctl_limit(dev_priv);
 
 	if (params->fence_id >= 0) {
 		dpfc_ctl |= IVB_DPFC_CTL_FENCE_EN;
-- 
2.31.1

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  parent reply	other threads:[~2021-06-10 18:33 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-10 18:32 [Intel-gfx] [PATCH 0/9] drm/i915/fbc: Clean up cfb allocation code Ville Syrjala
2021-06-10 18:32 ` [Intel-gfx] [PATCH 1/9] drm/i915/fbc: s/threshold/limit/ Ville Syrjala
2021-06-10 18:32 ` [Intel-gfx] [PATCH 2/9] drm/i915/fbc: Extract intel_fbc_program_cfb() Ville Syrjala
2021-06-10 18:32 ` [Intel-gfx] [PATCH 3/9] drm/i915/fbc: Embed the compressed_llb node Ville Syrjala
2021-06-10 18:32 ` [Intel-gfx] [PATCH 4/9] drm/i915/fbc: Don't pass around the mm node Ville Syrjala
2021-06-10 18:32 ` [Intel-gfx] [PATCH 5/9] drm/i915/fbc: Handle 16bpp compression limit better Ville Syrjala
2021-06-10 18:32 ` Ville Syrjala [this message]
2021-06-10 18:32 ` [Intel-gfx] [PATCH 7/9] drm/i915/fbc: Extract intel_fbc_stolen_end() Ville Syrjala
2021-06-10 18:32 ` [Intel-gfx] [PATCH 8/9] drm/i915/fbc: Make the cfb allocation loop a bit more legible Ville Syrjala
2021-06-10 18:32 ` [Intel-gfx] [PATCH 9/9] drm/i915/fbc: Allocate llb before cfb Ville Syrjala
2021-06-18 21:07   ` Souza, Jose
2021-06-10 18:50 ` [Intel-gfx] ✗ Fi.CI.SPARSE: warning for drm/i915/fbc: Clean up cfb allocation code Patchwork
2021-06-10 19:20 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2021-06-10 22:15 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork

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