Tom Cooksey wrote: > Yup, I think that's what I'm going to end up having to do. Even if I can get > the physical address, I need some way to flush the CPU cache to RAM before I > ask the GPU to blit. I doubt there's any way to do that from userspace. :-( I'm > not even sure of the kernel API to do it. Any ideas? MIPS has it: http://www.linux-mips.org/wiki/Cacheflush_Syscall and so does SH. I'm afraid I don't know about ARM though. -- Daniel Thompson (STMicroelectronics) <daniel.thompson@xxxxxx> 1000 Aztec West, Almondsbury, Bristol, BS32 4SQ. 01454 462659 If a car is a horseless carriage then is a motorcycle a horseless horse? -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html