On Tue, 2003-09-30 at 15:58, Alan Hourihane wrote:
Does anyone know why the radeon & r128 drivers call FLUSH_RING when in the BlockHandler ?
This is the best way to ensure that the indirect buffer gets flushed according to Mark Vojkovich. Without it, drawing operations could get stuck in the indirect buffer for quite a while. See the dri-devel archives.
Ah, yes. What's confusing here is the naming of the macro: FLUSH_RING() doesn't actually have anything to do with the ring, but rather sends the buffer of commands being built up in the X server off to the kernel.
Perhaps renaming the macro to FLUSH_INDIRECT_BUFFER() would help make things clearer?
Keith
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