[AGPGART] 945GM support for agpgart

Here's a very small diff for 945GM support for agpgart.

Patch against 2.6.15.

From: Alan Hourihane <alanh@fairlite.demon.co.uk>
Signed-off-by: Dave Jones <davej@redhat.com>

diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index e7bed50..631531f 100644 (file)
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -422,7 +422,8 @@ static void intel_i830_init_gtt_entries(void)
                        /* Check it's really I915G */
                        if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915G_HB ||
                            agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB ||
-                           agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB)
+                           agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB ||
+                           agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB)
                                gtt_entries = MB(48) - KB(size);
                        else
                                gtt_entries = 0;
@@ -431,7 +432,8 @@ static void intel_i830_init_gtt_entries(void)
                        /* Check it's really I915G */
                        if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915G_HB ||
                            agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB ||
-                           agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB)
+                           agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB ||
+                           agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB)
                                gtt_entries = MB(64) - KB(size);
                        else
                                gtt_entries = 0;
@@ -1681,6 +1683,14 @@ static int __devinit agp_intel_probe(struct pci_dev *pdev,
                }
                name = "945G";
                break;
+       case PCI_DEVICE_ID_INTEL_82945GM_HB:
+               if (find_i830(PCI_DEVICE_ID_INTEL_82945GM_IG)) {
+                       bridge->driver = &intel_915_driver;
+               } else {
+                       bridge->driver = &intel_845_driver;
+               }
+               name = "945GM";
+               break;
        case PCI_DEVICE_ID_INTEL_7505_0:
                bridge->driver = &intel_7505_driver;
                name = "E7505";
@@ -1821,6 +1831,7 @@ static struct pci_device_id agp_intel_pci_table[] = {
        ID(PCI_DEVICE_ID_INTEL_82915G_HB),
        ID(PCI_DEVICE_ID_INTEL_82915GM_HB),
        ID(PCI_DEVICE_ID_INTEL_82945G_HB),
+       ID(PCI_DEVICE_ID_INTEL_82945GM_HB),
        { }
 };
 

diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 5403257..2726140 100644 (file)
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2084,6 +2084,8 @@
 #define PCI_DEVICE_ID_INTEL_82915GM_IG 0x2592
 #define PCI_DEVICE_ID_INTEL_82945G_HB  0x2770
 #define PCI_DEVICE_ID_INTEL_82945G_IG  0x2772
+#define PCI_DEVICE_ID_INTEL_82945GM_HB 0x27A0
+#define PCI_DEVICE_ID_INTEL_82945GM_IG 0x27A2
 #define PCI_DEVICE_ID_INTEL_ICH6_0     0x2640
 #define PCI_DEVICE_ID_INTEL_ICH6_1     0x2641
 #define PCI_DEVICE_ID_INTEL_ICH6_2     0x2642