linux-kernel - [PATCH -mm 1/2] Documentation: DMA-API-HOWTO.txt: add multiple types of IOMMUs support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1280400308-16114-2-git-send-email-fujita.tomonori@lab.ntt.co.jp>
Date:	Thu, 29 Jul 2010 19:45:07 +0900
From:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To:	akpm@...ux-foundation.org, fujita.tomonori@....ntt.co.jp
Cc:	linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH -mm 1/2] Documentation: DMA-API-HOWTO.txt: add multiple types of IOMMUs support

Signed-off-by: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
---
 Documentation/DMA-API-HOWTO.txt |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/Documentation/DMA-API-HOWTO.txt b/Documentation/DMA-API-HOWTO.txt
index 98ce517..3c4e071 100644
--- a/Documentation/DMA-API-HOWTO.txt
+++ b/Documentation/DMA-API-HOWTO.txt
@@ -753,6 +753,16 @@ to "Closing".
    alignment constraints (e.g. the alignment constraints about 64-bit
    objects).
 
+3) Supporting multiple types of IOMMUs
+
+   If your architecture needs to support multiple types of IOMMUs, you
+   can use include/linux/asm-generic/dma-mapping-common.h. It's a
+   library to support the DMA API with multiple types of IOMMUs. Lots
+   of architectures (x86, powerpc, sh, alpha, ia64, microblaze and
+   sparc) use it. Choose one to see how it can be used. If you need to
+   support multiple types of IOMMUs in a single system, the example of
+   x86 or powerpc helps.
+
 			   Closing
 
 This document, and the API itself, would not be in its current
-- 
1.6.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/