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path: root/drivers/gpu/drm/gma500/psb_intel_sdvo.c
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Diffstat (limited to 'drivers/gpu/drm/gma500/psb_intel_sdvo.c')
-rw-r--r--drivers/gpu/drm/gma500/psb_intel_sdvo.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/gma500/psb_intel_sdvo.c b/drivers/gpu/drm/gma500/psb_intel_sdvo.c
index 4882b29119e0..88b42971c0fd 100644
--- a/drivers/gpu/drm/gma500/psb_intel_sdvo.c
+++ b/drivers/gpu/drm/gma500/psb_intel_sdvo.c
@@ -1141,6 +1141,7 @@ static void psb_intel_sdvo_dpms(struct drm_encoder *encoder, int mode)
static int psb_intel_sdvo_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
+ struct drm_psb_private *dev_priv = connector->dev->dev_private;
struct psb_intel_sdvo *psb_intel_sdvo = intel_attached_sdvo(connector);
if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
@@ -1160,6 +1161,11 @@ static int psb_intel_sdvo_mode_valid(struct drm_connector *connector,
return MODE_PANEL;
}
+ /* We assume worst case scenario of 32 bpp here, since we don't know */
+ if ((ALIGN(mode->hdisplay * 4, 64) * mode->vdisplay) >
+ dev_priv->vram_stolen_size)
+ return MODE_MEM;
+
return MODE_OK;
}