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-rw-r--r--sys/dev/agp/agpreg.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/sys/dev/agp/agpreg.h b/sys/dev/agp/agpreg.h
index 3d32c76..535ae51 100644
--- a/sys/dev/agp/agpreg.h
+++ b/sys/dev/agp/agpreg.h
@@ -57,6 +57,14 @@
#define AGP_INTEL_ATTBASE 0xb8
/*
+ * Config offsets for Intel i820/i840/i845/i850/i860 AGP chipsets.
+ */
+#define AGP_INTEL_MCHCFG 0x50
+#define AGP_INTEL_I820_RDCR 0x51
+#define AGP_INTEL_I845_MCHCFG 0x51
+#define AGP_INTEL_I8XX_ERRSTS 0xc8
+
+/*
* Config offsets for VIA AGP chipsets.
*/
#define AGP_VIA_GARTCTRL 0x80
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