diff options
Diffstat (limited to 'drivers/gpu/drm/gma500/cdv_intel_crt.c')
| -rw-r--r-- | drivers/gpu/drm/gma500/cdv_intel_crt.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/gma500/cdv_intel_crt.c b/drivers/gpu/drm/gma500/cdv_intel_crt.c index 6d0f10b7569c..a71a6cd95bdd 100644 --- a/drivers/gpu/drm/gma500/cdv_intel_crt.c +++ b/drivers/gpu/drm/gma500/cdv_intel_crt.c @@ -32,6 +32,7 @@ #include "psb_intel_drv.h" #include "psb_intel_reg.h" #include "power.h" +#include "cdv_device.h" #include <linux/pm_runtime.h> @@ -66,6 +67,7 @@ static void cdv_intel_crt_dpms(struct drm_encoder *encoder, int mode) static int cdv_intel_crt_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { + struct drm_psb_private *dev_priv = connector->dev->dev_private; int max_clock = 0; if (mode->flags & DRM_MODE_FLAG_DBLSCAN) return MODE_NO_DBLESCAN; @@ -82,6 +84,11 @@ static int cdv_intel_crt_mode_valid(struct drm_connector *connector, if (mode->hdisplay > 1680 || mode->vdisplay > 1050) 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; } |