From: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Subject: Re: Linux 3.4-rc1 Date: Tue, 3 Apr 2012 05:57:26 +0200 Message-ID: <CA+55aFw1ZG9R2MzgXmi0YE64t+xH95QnVuJB55sQ6xgDbnzkyQ@xxxxxxxxxxxxxx> > On Mon, Apr 2, 2012 at 7:57 PM, Kyungmin Park <kmpark@xxxxxxxxxxxxx> wrote: > > On Sun, Apr 1, 2012 at 8:58 AM, Linus Torvalds > >> > >> - DMA-mapping framework. The tree now has a few more acks from > >> people, and it's largely in the same situation as HSI is: I'll > >> probably pull, but I really wanted the users who are impacted to > >> actually talk to me about it. > > > > Now Marek and Nvidia persons are used it for DMA mapping based IOMMU. > > > > Are there other person who help to merge it? > > (+CC related persons). > > I want the people who want it to contact me and talk about what they > do with it. So far, I haven't seen anything. Nvidia ARM SoC Tegra3 has IOMMU(SMMU), and most of its peripheral devices can be clients of IOMMU. Their IOMMU'abiblity can be configured. With DMA-mapping API, we wouldn't have to change any of device driver code with\without IOMMU, but those 'dma_addr_t' could be physical address or device virtual address trasparently. -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
