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From: Michal Simek <monstr@monstr.eu>
To: Rusty Russell <rusty@rustcorp.com.au>, Jens Axboe <axboe@kernel.dk>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: scatterlist: sg_set_buf() argument must be in linear mapping (sha1: ac4e97abce9b80c020e7113325f49e58b7b15e3f)
Date: Wed, 17 Jul 2013 09:48:59 +0200	[thread overview]
Message-ID: <51E64C6B.3080306@monstr.eu> (raw)

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Hi Rusty and Jens,

I am getting problem with your patch which you have added to the kernel.
The problem is with my arm zynq remoteproc driver where
I use dma_declare_coherent_memory() to specify memory for remoteproc
which is ioremap to the vmalloc area.

Based on that buf addr is not inside ram even this coherent memory is in ram.
That's why virt_addr_valid(buf) is failing.

Thanks for you input,
Michal
-- 
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Microblaze cpu - http://www.monstr.eu/fdt/
Maintainer of Linux kernel - Xilinx Zynq ARM architecture
Microblaze U-BOOT custodian and responsible for u-boot arm zynq platform



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             reply	other threads:[~2013-07-17  7:49 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-17  7:48 Michal Simek [this message]
2013-07-22  1:47 ` scatterlist: sg_set_buf() argument must be in linear mapping (sha1: ac4e97abce9b80c020e7113325f49e58b7b15e3f) Rusty Russell
2013-07-22 12:58   ` Michal Simek
2013-07-23  2:30     ` Rusty Russell
2013-07-23 10:37       ` Russell King - ARM Linux
2013-07-23 12:12         ` Michal Simek

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