linux-kernel - [PATCH v4 2/2] drm/sun4i: Use CRTC size instead of primary plane size as mixer frame

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20210528203036.17999-3-r.stratiienko@gmail.com>
Date:   Fri, 28 May 2021 23:30:36 +0300
From:   Roman Stratiienko <r.stratiienko@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     mripard@...nel.org, wens@...e.org, jernej.skrabec@...l.net,
        megous@...ous.com, linux-sunxi@...glegroups.com,
        dri-devel@...ts.freedesktop.org,
        Roman Stratiienko <r.stratiienko@...il.com>
Subject: [PATCH v4 2/2] drm/sun4i: Use CRTC size instead of primary plane size as mixer frame

Fixes corrupted display picture when primary plane isn't full-screen.

Signed-off-by: Roman Stratiienko <r.stratiienko@...il.com>
---
 drivers/gpu/drm/sun4i/sun8i_mixer.c    | 28 ++++++++++++++++++++++++
 drivers/gpu/drm/sun4i/sun8i_ui_layer.c | 30 --------------------------
 2 files changed, 28 insertions(+), 30 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c
index 5b42cf25cc86..810c731566c0 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
@@ -248,6 +248,33 @@ int sun8i_mixer_drm_format_to_hw(u32 format, u32 *hw_format)
 	return -EINVAL;
 }
 
+static void sun8i_mode_set(struct sunxi_engine *engine,
+			   struct drm_display_mode *mode)
+{
+	u32 size = SUN8I_MIXER_SIZE(mode->crtc_hdisplay, mode->crtc_vdisplay);
+	struct sun8i_mixer *mixer = engine_to_sun8i_mixer(engine);
+	u32 bld_base = sun8i_blender_base(mixer);
+	u32 val;
+
+	DRM_DEBUG_DRIVER("Mode change, updating global size W: %u H: %u\n",
+			 mode->crtc_hdisplay, mode->crtc_vdisplay);
+	regmap_write(mixer->engine.regs, SUN8I_MIXER_GLOBAL_SIZE, size);
+	regmap_write(mixer->engine.regs,
+		     SUN8I_MIXER_BLEND_OUTSIZE(bld_base), size);
+
+	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+		val = SUN8I_MIXER_BLEND_OUTCTL_INTERLACED;
+	else
+		val = 0;
+
+	regmap_update_bits(mixer->engine.regs,
+			   SUN8I_MIXER_BLEND_OUTCTL(bld_base),
+			   SUN8I_MIXER_BLEND_OUTCTL_INTERLACED,
+			   val);
+	DRM_DEBUG_DRIVER("Switching display mixer interlaced mode %s\n",
+			 val ? "on" : "off");
+}
+
 static void sun8i_mixer_commit(struct sunxi_engine *engine)
 {
 	DRM_DEBUG_DRIVER("Committing changes\n");
@@ -301,6 +328,7 @@ static struct drm_plane **sun8i_layers_init(struct drm_device *drm,
 static const struct sunxi_engine_ops sun8i_engine_ops = {
 	.commit		= sun8i_mixer_commit,
 	.layers_init	= sun8i_layers_init,
+	.mode_set	= sun8i_mode_set,
 };
 
 static const struct regmap_config sun8i_mixer_regmap_config = {
diff --git a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
index 0db164a774a1..d66fff582278 100644
--- a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
@@ -120,36 +120,6 @@ static int sun8i_ui_layer_update_coord(struct sun8i_mixer *mixer, int channel,
 	insize = SUN8I_MIXER_SIZE(src_w, src_h);
 	outsize = SUN8I_MIXER_SIZE(dst_w, dst_h);
 
-	if (plane->type == DRM_PLANE_TYPE_PRIMARY) {
-		bool interlaced = false;
-		u32 val;
-
-		DRM_DEBUG_DRIVER("Primary layer, updating global size W: %u H: %u\n",
-				 dst_w, dst_h);
-		regmap_write(mixer->engine.regs,
-			     SUN8I_MIXER_GLOBAL_SIZE,
-			     outsize);
-		regmap_write(mixer->engine.regs,
-			     SUN8I_MIXER_BLEND_OUTSIZE(bld_base), outsize);
-
-		if (state->crtc)
-			interlaced = state->crtc->state->adjusted_mode.flags
-				& DRM_MODE_FLAG_INTERLACE;
-
-		if (interlaced)
-			val = SUN8I_MIXER_BLEND_OUTCTL_INTERLACED;
-		else
-			val = 0;
-
-		regmap_update_bits(mixer->engine.regs,
-				   SUN8I_MIXER_BLEND_OUTCTL(bld_base),
-				   SUN8I_MIXER_BLEND_OUTCTL_INTERLACED,
-				   val);
-
-		DRM_DEBUG_DRIVER("Switching display mixer interlaced mode %s\n",
-				 interlaced ? "on" : "off");
-	}
-
 	/* Set height and width */
 	DRM_DEBUG_DRIVER("Layer source offset X: %d Y: %d\n",
 			 state->src.x1 >> 16, state->src.y1 >> 16);
-- 
2.30.2