Le 2015-04-01 04:18, Cedric BAIL a ÃcritÂ:
On Wed, Apr 1, 2015 at 1:10 AM, <whygee@xxxxxxxxx> wrote:Not really. It would help for the case of DMA from/to the GPU, but notCould you write an elaborate document about it, like a sort of report ?for all the 2D rendering case you could do on the CPU.I'm confused again and a few diagrams will help me :-)Here is a link that explains it for a YUV surface : http://linuxtv.org/downloads/v4l-dvb-apis/re32.html . The same idea apply whatever the color space.
The document explains a zig-zag scan pattern across consecutive lines. it is not about whole memory blocks as I thought, because you speak about MMU and TLB entries are usually around 4KB long...interleaving would normally be performed with a few SIMD instructions, right ?
yg ************************************************************* To unsubscribe, send an e-mail to majordomo@xxxxxxxx with unsubscribe f-cpu in the body. http://f-cpu.seul.org/