Module Name: src
Committed By: riastradh
Date: Sun Dec 19 00:25:41 UTC 2021
Modified Files:
src/sys/external/bsd/drm2/include/linux: dma-mapping.h
Log Message:
Allow maximum number of bits in DMA_BIT_MASK.
To generate a diff of this commit:
cvs rdiff -u -r1.5 -r1.6 \
src/sys/external/bsd/drm2/include/linux/dma-mapping.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/external/bsd/drm2/include/linux/dma-mapping.h
diff -u src/sys/external/bsd/drm2/include/linux/dma-mapping.h:1.5 src/sys/external/bsd/drm2/include/linux/dma-mapping.h:1.6
--- src/sys/external/bsd/drm2/include/linux/dma-mapping.h:1.5 Mon Aug 27 06:17:40 2018
+++ src/sys/external/bsd/drm2/include/linux/dma-mapping.h Sun Dec 19 00:25:41 2021
@@ -1,4 +1,4 @@
-/* $NetBSD: dma-mapping.h,v 1.5 2018/08/27 06:17:40 riastradh Exp $ */
+/* $NetBSD: dma-mapping.h,v 1.6 2021/12/19 00:25:41 riastradh Exp $ */
/*-
* Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -34,12 +34,16 @@
#include <sys/bus.h>
+#include <machine/limits.h>
+
typedef bus_addr_t dma_addr_t;
static inline uintmax_t
DMA_BIT_MASK(unsigned nbits)
{
+ if (nbits == CHAR_BIT*sizeof(uintmax_t))
+ return ~(uintmax_t)0;
return ~(~(uintmax_t)0 << nbits);
}
