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-rw-r--r--kernel/arch/ia64/include/asm/agp.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/kernel/arch/ia64/include/asm/agp.h b/kernel/arch/ia64/include/asm/agp.h
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index 000000000..01d09c401
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+++ b/kernel/arch/ia64/include/asm/agp.h
@@ -0,0 +1,26 @@
+#ifndef _ASM_IA64_AGP_H
+#define _ASM_IA64_AGP_H
+
+/*
+ * IA-64 specific AGP definitions.
+ *
+ * Copyright (C) 2002-2003 Hewlett-Packard Co
+ * David Mosberger-Tang <davidm@hpl.hp.com>
+ */
+
+/*
+ * To avoid memory-attribute aliasing issues, we require that the AGPGART engine operate
+ * in coherent mode, which lets us map the AGP memory as normal (write-back) memory
+ * (unlike x86, where it gets mapped "write-coalescing").
+ */
+#define map_page_into_agp(page) /* nothing */
+#define unmap_page_from_agp(page) /* nothing */
+#define flush_agp_cache() mb()
+
+/* GATT allocation. Returns/accepts GATT kernel virtual address. */
+#define alloc_gatt_pages(order) \
+ ((char *)__get_free_pages(GFP_KERNEL, (order)))
+#define free_gatt_pages(table, order) \
+ free_pages((unsigned long)(table), (order))
+
+#endif /* _ASM_IA64_AGP_H */