David Rientjes 1c00f0161f x86: allow CONFIG_ISA_DMA_API to be disabled
Not all 64-bit systems require ISA-style DMA, so allow it to be
configurable.  x86 utilizes the generic ISA DMA allocator from
kernel/dma.c, so require it only when CONFIG_ISA_DMA_API is enabled.

Disabling CONFIG_ISA_DMA_API is dependent on x86_64 since those machines
do not have ISA slots and benefit the most from disabling the option (and
on CONFIG_EXPERT as required by H.  Peter Anvin).

When disabled, this also avoids declaring claim_dma_lock(),
release_dma_lock(), request_dma(), and free_dma() since those interfaces
will no longer be provided.

Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-22 17:44:16 -07:00
..
2011-03-18 10:39:30 +01:00
2008-10-22 22:55:23 -07:00
2011-03-18 10:39:00 +01:00
2009-01-29 14:16:51 +01:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2011-01-13 08:03:25 -08:00
2011-02-23 22:27:52 +01:00
2009-12-05 09:10:12 -08:00
2008-10-22 22:55:23 -07:00
2011-03-18 10:39:30 +01:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:20 -07:00
2008-10-22 22:55:20 -07:00
2011-02-14 12:08:28 +01:00
2008-10-22 22:55:20 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:20 -07:00
2010-02-16 21:22:26 -08:00
2008-10-22 22:55:20 -07:00
2008-10-22 22:55:23 -07:00
2011-02-28 18:06:22 +01:00
2010-10-26 16:52:08 -07:00
2008-10-22 22:55:23 -07:00
2010-05-07 17:13:04 -07:00
2011-01-07 10:03:50 -05:00
2008-10-22 22:55:23 -07:00
2009-03-27 14:43:57 -04:00
2008-12-12 11:58:36 +01:00
2009-08-27 00:35:56 +02:00
2011-02-24 14:52:18 +01:00
2010-03-10 13:23:34 +01:00
2008-10-22 22:55:20 -07:00
2010-10-26 16:52:08 -07:00
2009-01-21 17:26:06 +09:00
2011-03-03 12:47:08 +01:00
2011-02-23 22:27:52 +01:00
2010-10-07 14:08:55 +01:00
2008-10-22 22:55:23 -07:00
2010-08-14 22:26:51 +02:00
2009-06-13 15:37:30 +02:00
2011-03-17 13:08:35 -03:00
2008-10-22 22:55:23 -07:00
2010-06-09 11:12:36 +02:00
2010-01-05 15:34:49 +09:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:20 -07:00
2010-06-29 12:12:59 +02:00
2010-05-07 17:13:04 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:20 -07:00
2011-03-18 10:39:30 +01:00
2011-03-18 10:39:30 +01:00
2011-02-23 11:54:02 +01:00
2011-03-18 10:39:30 +01:00
2010-06-29 12:12:59 +02:00
2011-01-13 17:32:39 -08:00
2011-01-26 10:49:57 +10:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2010-11-18 12:52:04 +01:00
2011-03-18 10:39:30 +01:00
2010-11-01 15:38:34 -04:00
2010-10-26 16:52:08 -07:00
2011-01-13 17:32:44 -08:00
2011-01-13 17:32:44 -08:00
2011-01-13 17:32:44 -08:00
2008-10-22 22:55:20 -07:00
2008-10-22 22:55:20 -07:00
2009-02-02 23:27:09 +05:30
2011-03-18 10:39:30 +01:00
2011-02-25 16:18:52 +01:00
2010-02-12 09:42:39 -08:00
2011-03-18 10:39:30 +01:00
2011-03-18 10:39:30 +01:00
2008-10-22 22:55:20 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:20 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:20 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2010-11-12 00:45:41 +01:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2009-06-15 12:40:02 +02:00
2008-10-22 22:55:20 -07:00
2008-10-22 22:55:20 -07:00
2009-01-31 00:19:32 +05:30
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2011-01-12 11:23:16 +02:00
2011-03-18 10:39:30 +01:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:20 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2009-08-21 21:43:46 +02:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:20 -07:00
2008-10-22 22:55:23 -07:00
2008-10-22 22:55:23 -07:00
2009-06-15 12:40:02 +02:00