Messages in this thread | | | Date | Tue, 23 Nov 1999 15:07:07 -0500 (EST) | From | Eric Lowe <> | Subject | Re: 2.3.29-pre3, kmap & bttv |
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Hello,
> > Before I start changing code here and there, I'd like to know > > whether there is function which copies (remaps) page from HIGHMEM into > > memory addressable by PCI DMA? I did not find such, but maybe I just > > Don't bother. TV peaks at over 10Mbytes/second. You can't do it with copies > > > And should I implement another vmalloc(), which will not ask for > > HIGHMEM pages and simply forget about DMA to userspace or try to remap > > pages to low memory? > > IMHO it would be cleaner to make vmalloc take a memory type argument just > like kmalloc does. Opinions ?
I was surprised to find that it didn't already take an extra argument, as most *NIX systems require a boatload of arguments to specify how much caffeine you want in your coffee, etc. when you allocate kernel memory. :)
-- Eric Lowe FibreChannel Software Engineer, Systran Corporation elowe@systran.com
"You can't spell failure without U-R-A." -Dispair.com
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