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authorLinus Torvalds <torvalds@g5.osdl.org>2005-11-14 19:56:02 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-14 19:56:02 -0800
commit4060994c3e337b40e0f6fa8ce2cc178e021baf3d (patch)
tree980297c1747ca89354bc879cc5d17903eacb19e2 /include/linux/gfp.h
parent0174f72f848dfe7dc7488799776303c81b181b16 (diff)
parentd3ee871e63d0a0c70413dc0aa5534b8d6cd6ec37 (diff)
Merge x86-64 update from Andi
Diffstat (limited to 'include/linux/gfp.h')
-rw-r--r--include/linux/gfp.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 23279d8f19b..313dfe9b443 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -14,6 +14,13 @@ struct vm_area_struct;
/* Zone modifiers in GFP_ZONEMASK (see linux/mmzone.h - low two bits) */
#define __GFP_DMA ((__force gfp_t)0x01u)
#define __GFP_HIGHMEM ((__force gfp_t)0x02u)
+#ifdef CONFIG_DMA_IS_DMA32
+#define __GFP_DMA32 ((__force gfp_t)0x01) /* ZONE_DMA is ZONE_DMA32 */
+#elif BITS_PER_LONG < 64
+#define __GFP_DMA32 ((__force gfp_t)0x00) /* ZONE_NORMAL is ZONE_DMA32 */
+#else
+#define __GFP_DMA32 ((__force gfp_t)0x04) /* Has own ZONE_DMA32 */
+#endif
/*
* Action modifiers - doesn't change the zoning
@@ -63,6 +70,10 @@ struct vm_area_struct;
#define GFP_DMA __GFP_DMA
+/* 4GB DMA on some platforms */
+#define GFP_DMA32 __GFP_DMA32
+
+
#define gfp_zone(mask) ((__force int)((mask) & (__force gfp_t)GFP_ZONEMASK))
/*