[PATCH] AGPGART for VIA vt8235, kernel 2.4.21-pre2

[Richard Baverstock]

Here is a patch that enables AGPGART for the VIA vt8235 chipset on P4X400 motherboards. Rather trivial, adds the pci id, then a few lines in the agp sources to get it identified. I've only been able to test this on my computer, where it works.

Rich

--BEGIN--

diff -ur linux/drivers/char/agp/agp.h linux-2.4.21-pre2/drivers/char/agp/agp.h
--- linux/drivers/char/agp/agp.h 2003-01-02 14:36:15.000000000 -0500
+++ linux-2.4.21-pre2/drivers/char/agp/agp.h 2003-01-02 14:35:02.000000000 -0500
@@ -157,6 +157,9 @@

 #define PGE_EMPTY(p) (!(p) || (p) == (unsigned long) agp_bridge.scratch_page)

+#ifndef PCI_DEVICE_ID_VIA_8235_0
+#define PCI_DEVICE_ID_VIA_8235_0       0x3168
+#endif
 #ifndef PCI_DEVICE_ID_VIA_82C691_0
 #define PCI_DEVICE_ID_VIA_82C691_0      0x0691
 #endif
diff -ur linux/drivers/char/agp/agpgart_be.c linux-2.4.21-pre2/drivers/char/agp/agpgart_be.c
--- linux/drivers/char/agp/agpgart_be.c   2003-01-02 14:36:15.000000000 -0500
+++ linux-2.4.21-pre2/drivers/char/agp/agpgart_be.c   2003-01-02 14:35:02.000000000 -0500
@@ -4640,6 +4640,12 @@
 #endif /* CONFIG_AGP_SIS */

 #ifdef CONFIG_AGP_VIA
+  { PCI_DEVICE_ID_VIA_8235_0,
+     PCI_VENDOR_ID_VIA,
+     VIA_P4X400,
+     "Via",
+     "P4X400",
+     via_generic_setup },
   { PCI_DEVICE_ID_VIA_8501_0,
      PCI_VENDOR_ID_VIA,
      VIA_MVP4,
diff -ur linux/drivers/pci/pci.ids linux-2.4.21-pre2/drivers/pci/pci.ids
--- linux/drivers/pci/pci.ids 2003-01-02 14:36:16.000000000 -0500
+++ linux-2.4.21-pre2/drivers/pci/pci.ids 2003-01-02 14:35:02.000000000 -0500
@@ -2751,6 +2751,7 @@
   3147  VT8233A ISA Bridge
   3148  P4M266 Host Bridge
   3156  P/KN266 Host Bridge
+  3168  VT8235 [P4X400 AGP]
   3177  VT8233A ISA Bridge
      1458 5001 GA-7VAX Mainboard
   3189  VT8377 [KT400 AGP] Host Bridge
diff -ur linux/include/linux/agp_backend.h linux-2.4.21-pre2/include/linux/agp_backend.h
--- linux/include/linux/agp_backend.h  2003-01-02 14:36:17.000000000 -0500
+++ linux-2.4.21-pre2/include/linux/agp_backend.h  2003-01-02 14:35:02.000000000 -0500
@@ -54,6 +54,7 @@
   INTEL_I850,
   INTEL_I860,
   VIA_GENERIC,
+  VIA_P4X400,
   VIA_VP3,
   VIA_MVP3,
   VIA_MVP4,

--END--