Re: R200 ReadPixels optimization / AGP

2004-10-07 Thread Keith Whitwell
Alan Cox wrote: On Iau, 2004-10-07 at 15:40, Ville SyrjÃlà wrote: Why can't we make AGP memory cached? Wouldn't it be enought to flush the caches at some critical points? Possibly although it is not trivial to see how we get that right, especially with the 4Mb kernel maps. The x86 processor canno

Re: R200 ReadPixels optimization / AGP

2004-10-07 Thread Alan Cox
On Iau, 2004-10-07 at 15:40, Ville SyrjÃlà wrote: > Why can't we make AGP memory cached? Wouldn't it be enought to flush the > caches at some critical points? Possibly although it is not trivial to see how we get that right, especially with the 4Mb kernel maps. The x86 processor cannot handle a p