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authorSinclair Yeh <syeh@vmware.com>2017-03-27 11:12:27 -0700
committerSinclair Yeh <syeh@vmware.com>2017-03-31 15:21:20 -0700
commit28c954299cd2b5cb5411816c9eeaf3f51ed4638e (patch)
tree8d6afa1906526ea636035af1bbbc7f177cb02a1a /drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
parent810b3e1683d00e51c8392bcee7dc7a1c65354777 (diff)
downloadlinux-28c954299cd2b5cb5411816c9eeaf3f51ed4638e.tar.gz
drm/vmwgfx: Properly check display/scanout surface size
The scanout surface size is the smaller of max texture size and
max STDU size.

Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
index 4fc46b23ba8b..e872ffe5f0db 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
@@ -1601,7 +1601,21 @@ int vmw_kms_stdu_init_display(struct vmw_private *dev_priv)
 
 	dev_priv->active_display_unit = vmw_du_screen_target;
 
-	if (!(dev_priv->capabilities & SVGA_CAP_3D)) {
+	if (dev_priv->capabilities & SVGA_CAP_3D) {
+		/*
+		 * For 3D VMs, display (scanout) buffer size is the smaller of
+		 * max texture and max STDU
+		 */
+		uint32_t max_width, max_height;
+
+		max_width = min(dev_priv->texture_max_width,
+				dev_priv->stdu_max_width);
+		max_height = min(dev_priv->texture_max_height,
+				 dev_priv->stdu_max_height);
+
+		dev->mode_config.max_width = max_width;
+		dev->mode_config.max_height = max_height;
+	} else {
 		/*
 		 * Given various display aspect ratios, there's no way to
 		 * estimate these using prim_bb_mem.  So just set these to