1 files changed, 11 insertions, 5 deletions

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index dbfe07c90cbc..7bfded5e90bb 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1094,15 +1094,21 @@ static int i915_probe_agp(struct drm_device *dev, uint32_t *aperture_size,
          * Some of the preallocated space is taken by the GTT
          * and popup.  GTT is 1K per MB of aperture size, and popup is 4K.
          */
-        if (IS_G4X(dev) || IS_PINEVIEW(dev) || IS_IRONLAKE(dev))
+        if (IS_G4X(dev) || IS_PINEVIEW(dev) || IS_IRONLAKE(dev) || IS_GEN6(dev))
                 overhead = 4096;
         else
                 overhead = (*aperture_size / 1024) + 4096;
 
         switch (tmp & INTEL_GMCH_GMS_MASK) {
         case INTEL_855_GMCH_GMS_DISABLED:
-                DRM_ERROR("video memory is disabled\n");
-                return -1;
+                /* XXX: This is what my A1 silicon has. */
+                if (IS_GEN6(dev)) {
+                        stolen = 64 * 1024 * 1024;
+                } else {
+                        DRM_ERROR("video memory is disabled\n");
+                        return -1;
+                }
+                break;
         case INTEL_855_GMCH_GMS_STOLEN_1M:
                 stolen = 1 * 1024 * 1024;
                 break;
@@ -1180,7 +1186,7 @@ static unsigned long i915_gtt_to_phys(struct drm_device *dev,
         int gtt_offset, gtt_size;
 
         if (IS_I965G(dev)) {
-                if (IS_G4X(dev) || IS_IRONLAKE(dev)) {
+                if (IS_G4X(dev) || IS_IRONLAKE(dev) || IS_GEN6(dev)) {
                         gtt_offset = 2*1024*1024;
                         gtt_size = 2*1024*1024;
                 } else {
@@ -1563,7 +1569,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
 
         dev->driver->get_vblank_counter = i915_get_vblank_counter;
         dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */
-        if (IS_G4X(dev) || IS_IRONLAKE(dev)) {
+        if (IS_G4X(dev) || IS_IRONLAKE(dev) || IS_GEN6(dev)) {
                 dev->max_vblank_count = 0xffffffff; /* full 32 bit counter */
                 dev->driver->get_vblank_counter = gm45_get_vblank_counter;
         }