linux-kernel - [PATCH v3 01/11] drm/meson: Use crtc_state for hdisplay and fix atomic flush/enable sync for vsync commit

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]

Date:   Tue,  4 Apr 2017 14:15:21 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     airlied@...ux.ie
Cc:     Neil Armstrong <narmstrong@...libre.com>,
        dri-devel@...ts.freedesktop.org, linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 01/11] drm/meson: Use crtc_state for hdisplay and fix atomic flush/enable sync for vsync commit

Clean the crtc_enable by using the proper crtc_state instead of the state
of the primary plane state data.

Also fix the dependency to commit the plane changes even if enable is called
after the flush.

Acked-by: Daniel Vetter <daniel.vetter@...ll.ch>
Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
---
 drivers/gpu/drm/meson/meson_crtc.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/meson/meson_crtc.c b/drivers/gpu/drm/meson/meson_crtc.c
index 0fe49ec..c986eb0 100644
--- a/drivers/gpu/drm/meson/meson_crtc.c
+++ b/drivers/gpu/drm/meson/meson_crtc.c
@@ -82,11 +82,18 @@ static void meson_crtc_disable_vblank(struct drm_crtc *crtc)
 static void meson_crtc_enable(struct drm_crtc *crtc)
 {
 	struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
-	struct drm_plane *plane = meson_crtc->priv->primary_plane;
+	struct drm_crtc_state *crtc_state = crtc->state;
 	struct meson_drm *priv = meson_crtc->priv;
 
+	DRM_DEBUG_DRIVER("\n");
+
+	if (!crtc_state) {
+		DRM_ERROR("Invalid crtc_state\n");
+		return;
+	}
+
 	/* Enable VPP Postblend */
-	writel(plane->state->crtc_w,
+	writel(crtc_state->mode.hdisplay,
 	       priv->io_base + _REG(VPP_POSTBLEND_H_SIZE));
 
 	writel_bits_relaxed(VPP_POSTBLEND_ENABLE, VPP_POSTBLEND_ENABLE,
@@ -101,6 +108,7 @@ static void meson_crtc_disable(struct drm_crtc *crtc)
 	struct meson_drm *priv = meson_crtc->priv;
 
 	priv->viu.osd1_enabled = false;
+	priv->viu.osd1_commit = false;
 
 	/* Disable VPP Postblend */
 	writel_bits_relaxed(VPP_POSTBLEND_ENABLE, 0,
@@ -137,8 +145,7 @@ static void meson_crtc_atomic_flush(struct drm_crtc *crtc,
 	struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
 	struct meson_drm *priv = meson_crtc->priv;
 
-	if (priv->viu.osd1_enabled)
-		priv->viu.osd1_commit = true;
+	priv->viu.osd1_commit = true;
 }
 
 static const struct drm_crtc_helper_funcs meson_crtc_helper_funcs = {
-- 
1.9.1