From: Jassi Brar <jaswinder.singh@linaro.org>
To: Vinod Koul <vinod.koul@intel.com>
Cc: Russell King <rmk@arm.linux.org.uk>,
"Bounine, Alexandre" <Alexandre.Bounine@idt.com>,
"Williams, Dan J" <dan.j.williams@intel.com>,
Barry Song <21cnbao@gmail.com>,
linux-kernel@vger.kernel.org,
DL-SHA-WorkGroupLinux <workgroup.linux@csr.com>,
Dave Jiang <dave.jiang@intel.com>
Subject: Re: [PATCHv4] DMAEngine: Define interleaved transfer request api
Date: Tue, 18 Oct 2011 14:07:30 +0530 [thread overview]
Message-ID: <CAJe_Zhe9B2n1ZYqSAY9gEjeJn2rx6WOVZ5Tn463=sb_H-k8xew@mail.gmail.com> (raw)
In-Reply-To: <1318926384.23438.179.camel@vkoul-udesk3>
On 18 October 2011 13:56, Vinod Koul <vinod.koul@intel.com> wrote:
> On Tue, 2011-10-18 at 14:00 +0530, Jassi Brar wrote:
>> On 18 October 2011 13:12, Russell King <rmk@arm.linux.org.uk> wrote:
>> > On Tue, Oct 18, 2011 at 11:15:29AM +0530, Jassi Brar wrote:
>> >> On 18 October 2011 02:37, Bounine, Alexandre <Alexandre.Bounine@idt.com> wrote:
>> >> > With item #1 above being a separate topic, I may have a problem with #2
>> >> > as well: dma_addr_t is sized for the local platform and not guaranteed
>> >> > to be a 64-bit value (which may be required by a target).
>> >> > Agree with #3 (if #1 and #2 work).
>> >> >
>> >> Perhaps simply change dma_addr_t to u64 in dmaengine.h alone ?
>> >
>> > That's just an idiotic suggestion - there's no other way to put that.
>> > Let's have some sanity here.
>> >
>> Yeah, I am not proud of the workaround, so I only probed the option.
>> I think I need to explain myself.
>>
>> The case here is that even a 32-bit RapidIO host could ask transfer against
>> 64-bit address space on a remote device. And vice versa 64->32.
> I thought RIO address were always 64 + 2 bits, irrespective of what the
> host system is...
>
No, not always. RIO address could be 32, 48 or 64... with the role extra 2 bits
not very clear.
next prev parent reply other threads:[~2011-10-18 8:37 UTC|newest]
Thread overview: 121+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-12 11:14 [PATCH] DMAEngine: Define generic transfer request api Jassi Brar
2011-08-16 12:56 ` Koul, Vinod
2011-08-16 13:06 ` Linus Walleij
2011-08-19 13:43 ` Koul, Vinod
2011-08-19 14:19 ` Linus Walleij
2011-08-19 15:46 ` Jassi Brar
2011-08-19 17:28 ` Koul, Vinod
2011-08-19 18:45 ` Jassi Brar
2011-08-23 14:43 ` Matt Porter
2011-08-23 14:43 ` Matt Porter
2011-08-16 14:32 ` Jassi Brar
2011-09-15 7:46 ` [PATCHv2] " Jassi Brar
2011-09-15 8:22 ` Russell King
2011-09-15 10:02 ` Jassi Brar
2011-09-16 7:17 ` Barry Song
2011-09-16 11:03 ` Jassi Brar
2011-09-16 9:07 ` Vinod Koul
2011-09-16 12:30 ` Jassi Brar
2011-09-16 17:06 ` Vinod Koul
2011-09-16 17:51 ` Jassi Brar
2011-09-19 3:23 ` Vinod Koul
2011-09-20 12:12 ` [PATCHv3] DMAEngine: Define interleaved " Jassi Brar
2011-09-20 16:52 ` Vinod Koul
2011-09-20 18:08 ` Jassi Brar
2011-09-21 6:32 ` Vinod Koul
2011-09-21 6:45 ` Jassi Brar
2011-09-21 6:51 ` Vinod Koul
2011-09-21 7:31 ` Jassi Brar
2011-09-21 10:18 ` Russell King
2011-09-21 15:21 ` Jassi Brar
2011-09-28 6:39 ` [PATCHv4] " Jassi Brar
2011-09-28 9:03 ` Vinod Koul
2011-09-28 15:15 ` Jassi Brar
2011-09-29 11:17 ` Vinod Koul
2011-09-30 6:43 ` Barry Song
2011-09-30 16:01 ` Jassi Brar
2011-10-01 3:05 ` Barry Song
2011-10-01 18:11 ` Vinod Koul
2011-10-01 18:45 ` Jassi Brar
2011-10-01 18:41 ` Jassi Brar
2011-10-01 18:48 ` Jassi Brar
2011-10-02 0:33 ` Barry Song
2011-10-03 6:24 ` Jassi Brar
2011-10-03 16:13 ` Russell King
2011-10-03 16:19 ` Jassi Brar
2011-10-03 17:15 ` Williams, Dan J
2011-10-03 18:23 ` Jassi Brar
2011-10-05 18:19 ` Williams, Dan J
2011-10-06 9:06 ` Jassi Brar
2011-10-05 18:14 ` Williams, Dan J
2011-10-06 7:12 ` Jassi Brar
2011-10-07 5:45 ` Vinod Koul
2011-10-07 11:27 ` Jassi Brar
2011-10-07 14:19 ` Vinod Koul
2011-10-07 14:38 ` Jassi Brar
2011-10-10 6:53 ` Vinod Koul
2011-10-10 9:16 ` Jassi Brar
2011-10-10 9:18 ` Vinod Koul
2011-10-10 9:53 ` Jassi Brar
2011-10-10 10:45 ` Vinod Koul
2011-10-10 11:16 ` Jassi Brar
2011-10-10 16:02 ` Vinod Koul
2011-10-10 16:28 ` Jassi Brar
2011-10-11 11:56 ` Vinod Koul
2011-10-11 15:57 ` Jassi Brar
2011-10-11 16:45 ` Vinod Koul
2011-10-12 5:41 ` Barry Song
2011-10-12 6:19 ` Vinod Koul
2011-10-12 6:30 ` Jassi Brar
2011-10-12 6:53 ` Barry Song
2011-10-11 16:44 ` Williams, Dan J
2011-10-11 18:42 ` Jassi Brar
2011-10-14 18:11 ` Bounine, Alexandre
2011-10-14 17:50 ` Bounine, Alexandre
2011-10-14 18:36 ` Jassi Brar
2011-10-14 19:15 ` Bounine, Alexandre
2011-10-15 11:25 ` Jassi Brar
2011-10-17 14:07 ` Bounine, Alexandre
2011-10-17 15:16 ` Jassi Brar
2011-10-17 18:00 ` Bounine, Alexandre
2011-10-17 19:29 ` Jassi Brar
2011-10-17 21:07 ` Bounine, Alexandre
2011-10-18 5:45 ` Jassi Brar
2011-10-18 7:42 ` Russell King
2011-10-18 8:30 ` Jassi Brar
2011-10-18 8:26 ` Vinod Koul
2011-10-18 8:37 ` Jassi Brar [this message]
2011-10-18 14:44 ` Bounine, Alexandre
2011-10-18 9:49 ` Russell King
2011-10-18 11:50 ` Jassi Brar
2011-10-18 11:59 ` Russell King
2011-10-18 17:57 ` Bounine, Alexandre
2011-10-24 3:49 ` Vinod Koul
2011-10-24 12:36 ` Bounine, Alexandre
2011-10-24 15:27 ` Vinod Koul
2011-10-18 17:26 ` Bounine, Alexandre
2011-10-18 17:35 ` Russell King
2011-10-18 17:53 ` Jassi Brar
2011-10-18 13:51 ` Bounine, Alexandre
2011-10-18 14:54 ` Jassi Brar
2011-10-18 15:15 ` Bounine, Alexandre
2011-09-30 15:47 ` Jassi Brar
2011-10-13 7:03 ` [PATCHv5] " Jassi Brar
2011-10-14 7:32 ` Barry Song
2011-10-14 11:51 ` Jassi Brar
2011-10-14 13:31 ` Vinod Koul
2011-10-14 13:51 ` Jassi Brar
2011-10-14 14:05 ` Vinod Koul
2011-10-14 14:18 ` Vinod Koul
2011-10-14 14:55 ` Barry Song
2011-10-14 15:06 ` Vinod Koul
2011-10-14 15:38 ` Barry Song
2011-10-14 16:09 ` Vinod Koul
2011-10-14 16:35 ` Jassi Brar
2011-10-14 17:04 ` Vinod Koul
2011-10-14 17:59 ` Jassi Brar
2011-10-15 17:11 ` Vinod Koul
2011-10-14 15:16 ` Vinod Koul
2011-10-14 15:50 ` Barry Song
2011-10-16 11:16 ` Jassi Brar
2011-10-16 12:16 ` Vinod Koul
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