Author: hselasky
Date: Fri Feb 17 13:31:11 2017
New Revision: 313872
URL: https://svnweb.freebsd.org/changeset/base/313872
Log:
Implement GFP_DMA32 flag in the LinuxKPI.
Define all FreeBSD native GFP bits as GFP_NATIVE_MASK.
Obtained from: kmacy @
MFC after: 1 week
Sponsored by: Mellanox Technologies
Modified:
head/sys/compat/linuxkpi/common/include/linux/dma-mapping.h
head/sys/compat/linuxkpi/common/include/linux/gfp.h
Modified: head/sys/compat/linuxkpi/common/include/linux/dma-mapping.h
==============================================================================
--- head/sys/compat/linuxkpi/common/include/linux/dma-mapping.h Fri Feb 17
12:47:51 2017 (r313871)
+++ head/sys/compat/linuxkpi/common/include/linux/dma-mapping.h Fri Feb 17
13:31:11 2017 (r313872)
@@ -129,8 +129,10 @@ dma_alloc_coherent(struct device *dev, s
if (dev->dma_mask)
high = *dev->dma_mask;
- else
+ else if (flag & GFP_DMA32)
high = BUS_SPACE_MAXADDR_32BIT;
+ else
+ high = BUS_SPACE_MAXADDR;
align = PAGE_SIZE << get_order(size);
mem = (void *)kmem_alloc_contig(kmem_arena, size, flag, 0, high, align,
0, VM_MEMATTR_DEFAULT);
Modified: head/sys/compat/linuxkpi/common/include/linux/gfp.h
==============================================================================
--- head/sys/compat/linuxkpi/common/include/linux/gfp.h Fri Feb 17 12:47:51
2017 (r313871)
+++ head/sys/compat/linuxkpi/common/include/linux/gfp.h Fri Feb 17 13:31:11
2017 (r313872)
@@ -53,7 +53,7 @@
#define __GFP_IO 0
#define __GFP_NO_KSWAPD 0
#define __GFP_WAIT M_WAITOK
-#define __GFP_DMA32 0
+#define __GFP_DMA32 (1U << 24) /* LinuxKPI only */
#define GFP_NOWAIT M_NOWAIT
#define GFP_ATOMIC (M_NOWAIT | M_USE_RESERVE)
@@ -63,8 +63,9 @@
#define GFP_HIGHUSER_MOVABLE M_WAITOK
#define GFP_IOFS M_NOWAIT
#define GFP_NOIO M_NOWAIT
-#define GFP_DMA32 0
+#define GFP_DMA32 __GFP_DMA32
#define GFP_TEMPORARY M_NOWAIT
+#define GFP_NATIVE_MASK (M_NOWAIT | M_WAITOK | M_USE_RESERVE | M_ZERO)
static inline void *
page_address(struct page *page)
_______________________________________________
svn-src-head@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-head
To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
