Re: virt_to_page/pci_map_page vs. pci_map_single
From: Jes Sorensen
Date: Mon Nov 03 2003 - 09:18:58 EST
>>>>> "Jamie" == Jamie Wellnitz <Jamie.Wellnitz@xxxxxxxxxx> writes:
Jamie> On Mon, Nov 03, 2003 at 03:10:46AM -0500, Jes Sorensen wrote:
>> virt_to_page() can handle any page in the standard kernel region
Jamie> What is the "standard kernel region"? ZONE_NORMAL?
Hmmm, my brain has gotten ia64ified ;-) It's basically the normal
mappings of the kernel, ie. the kernel text/data/bss segments as well
as anything you do not get back as a dynamic mapping such as
>> pci_map_page() is the correct API to use, pci_map_single() is
Jamie> Are you talking about 2.4 or 2.6 or both?
Jamie> The Document/DMA-mapping.txt in 2.6.0-test9 says "To map a
Jamie> single region, you do:" and then shows pci_map_single. Is
Jamie> DMA-mapping.txt in need of patching?
Sounds like it needs an update.
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