agp/intel: Add support for Sandybridge.

Signed-off-by: Eric Anholt <eric@anholt.net>

diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index e5ffefe..df85ed9 100644 (file)
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -64,6 +64,8 @@
 #define PCI_DEVICE_ID_INTEL_IRONLAKE_MA_HB         0x0062
 #define PCI_DEVICE_ID_INTEL_IRONLAKE_MC2_HB    0x006a
 #define PCI_DEVICE_ID_INTEL_IRONLAKE_M_IG          0x0046
+#define PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB  0x0100
+#define PCI_DEVICE_ID_INTEL_SANDYBRIDGE_IG  0x0102
 
 /* cover 915 and 945 variants */
 #define IS_I915 (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_E7221_HB || \
@@ -98,7 +100,8 @@
                agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IRONLAKE_D_HB || \
                agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IRONLAKE_M_HB || \
                agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IRONLAKE_MA_HB || \
-               agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IRONLAKE_MC2_HB)
+               agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IRONLAKE_MC2_HB || \
+               agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB)
 
 extern int agp_memory_reserved;
 
@@ -705,6 +708,12 @@ static void intel_i830_init_gtt_entries(void)
                        gtt_entries = 0;
                        break;
                }
+       } else if (agp_bridge->dev->device ==
+                  PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB) {
+               /* XXX: This is what my A1 silicon has.  What's the right
+                * answer?
+                */
+               gtt_entries = MB(64) - KB(size);
        } else {
                switch (gmch_ctrl & I855_GMCH_GMS_MASK) {
                case I855_GMCH_GMS_STOLEN_1M:
@@ -1364,6 +1373,7 @@ static void intel_i965_get_gtt_range(int *gtt_offset, int *gtt_size)
        case PCI_DEVICE_ID_INTEL_IRONLAKE_M_HB:
        case PCI_DEVICE_ID_INTEL_IRONLAKE_MA_HB:
        case PCI_DEVICE_ID_INTEL_IRONLAKE_MC2_HB:
+       case PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB:
                *gtt_offset = *gtt_size = MB(2);
                break;
        default:
@@ -2369,6 +2379,8 @@ static const struct intel_driver_description {
            "HD Graphics", NULL, &intel_i965_driver },
        { PCI_DEVICE_ID_INTEL_IRONLAKE_MC2_HB, PCI_DEVICE_ID_INTEL_IRONLAKE_M_IG, 0,
            "HD Graphics", NULL, &intel_i965_driver },
+       { PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB, PCI_DEVICE_ID_INTEL_SANDYBRIDGE_IG, 0,
+           "Sandybridge", NULL, &intel_i965_driver },
        { 0, 0, 0, NULL, NULL, NULL }
 };
 
@@ -2575,6 +2587,7 @@ static struct pci_device_id agp_intel_pci_table[] = {
        ID(PCI_DEVICE_ID_INTEL_IRONLAKE_M_HB),
        ID(PCI_DEVICE_ID_INTEL_IRONLAKE_MA_HB),
        ID(PCI_DEVICE_ID_INTEL_IRONLAKE_MC2_HB),
+       ID(PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB),
        { }
 };