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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-08-07 09:55:03 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-08-07 09:55:03 +0100
commit4fb8af10d0fd09372d52966b76922b9e82bbc950 (patch)
treed240e4d40357583e3f3eb228dccf20122a5b31ed /arch/ia64/include/asm/agp.h
parentf44f82e8a20b98558486eb14497b2f71c78fa325 (diff)
parent64a99d2a8c3ed5c4e39f3ae1cc682aa8fd3977fc (diff)
downloadop-kernel-dev-4fb8af10d0fd09372d52966b76922b9e82bbc950.zip
op-kernel-dev-4fb8af10d0fd09372d52966b76922b9e82bbc950.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes
Diffstat (limited to 'arch/ia64/include/asm/agp.h')
-rw-r--r--arch/ia64/include/asm/agp.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/agp.h b/arch/ia64/include/asm/agp.h
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+++ b/arch/ia64/include/asm/agp.h
@@ -0,0 +1,30 @@
+#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()
+
+/* Convert a physical address to an address suitable for the GART. */
+#define phys_to_gart(x) (x)
+#define gart_to_phys(x) (x)
+
+/* 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 */
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