Agpgart for 845G

From: graeme fisher (graeme@2d3d.co.za)
Date: Sun May 12 2002 - 11:47:41 EST


Hi,

Patch for Intel 845G agpgart support

Cheers
Graeme

diff -ruNp linux/drivers/char/agp/agp.h my_linux/drivers/char/agp/agp.h
--- linux/drivers/char/agp/agp.h Wed Apr 10 00:11:46 2002
+++ my_linux/drivers/char/agp/agp.h Tue Apr 9 05:15:07 2002
@@ -170,6 +170,12 @@ struct agp_bridge_data {
 #ifndef PCI_DEVICE_ID_INTEL_810_0
 #define PCI_DEVICE_ID_INTEL_810_0 0x7120
 #endif
+#ifndef PCI_DEVICE_ID_INTEL_845_G_0
+#define PCI_DEVICE_ID_INTEL_845_G_0 0x2560
+#endif
+#ifndef PCI_DEVICE_ID_INTEL_845_G_1
+#define PCI_DEVICE_ID_INTEL_845_G_1 0x2562
+#endif
 #ifndef PCI_DEVICE_ID_INTEL_830_M_0
 #define PCI_DEVICE_ID_INTEL_830_M_0 0x3575
 #endif
diff -ruNp linux/drivers/char/agp/agpgart_be.c my_linux/drivers/char/agp/agpgart_be.c
--- linux/drivers/char/agp/agpgart_be.c Wed Apr 10 00:11:46 2002
+++ my_linux/drivers/char/agp/agpgart_be.c Tue Apr 9 05:13:23 2002
@@ -3662,6 +3662,12 @@ static struct {
                 "Intel",
                 "i830M",
                 intel_830mp_setup },
+ { PCI_DEVICE_ID_INTEL_845_G_0,
+ PCI_VENDOR_ID_INTEL,
+ INTEL_I845_G,
+ "Intel",
+ "i845G",
+ intel_830mp_setup },
         { PCI_DEVICE_ID_INTEL_840_0,
                 PCI_VENDOR_ID_INTEL,
                 INTEL_I840,
@@ -3979,6 +3985,28 @@ static int __init agp_find_supported_dev
                         agp_bridge.type = INTEL_I810;
                         return intel_i810_setup(i810_dev);
 
+ case PCI_DEVICE_ID_INTEL_845_G_0:
+ i810_dev = pci_find_device(PCI_VENDOR_ID_INTEL,
+ PCI_DEVICE_ID_INTEL_845_G_1, NULL);
+ if(i810_dev && PCI_FUNC(i810_dev->devfn) != 0) {
+ i810_dev = pci_find_device(PCI_VENDOR_ID_INTEL,
+ PCI_DEVICE_ID_INTEL_845_G_1, i810_dev);
+ }
+
+ if (i810_dev == NULL) {
+ /*
+ * We probably have a I830MP chipset
+ * with an external graphics
+ * card. It will be initialized later
+ */
+ agp_bridge.type = INTEL_I845_G;
+ break;
+ }
+ printk(KERN_INFO PFX "Detected an Intel "
+ "845G Chipset.\n");
+ agp_bridge.type = INTEL_I810;
+ return intel_i830_setup(i810_dev);
+
                 case PCI_DEVICE_ID_INTEL_830_M_0:
                         i810_dev = pci_find_device(PCI_VENDOR_ID_INTEL,
                                         PCI_DEVICE_ID_INTEL_830_M_1, NULL);
--- linux/include/linux/agp_backend.h Sat Nov 10 00:11:15 2001
+++ my_linux/include/linux/agp_backend.h Tue Apr 9 05:17:56 2002
@@ -48,6 +48,7 @@ enum chipset_type {
         INTEL_I815,
         INTEL_I820,
         INTEL_I830_M,
+ INTEL_I845_G,
         INTEL_I840,
         INTEL_I845,
         INTEL_I850,

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