The memory behind ring_rptr can either be in ioremapped memory
or a vmalloc() normal kernel memory buffer.
However, the code unconditionally uses DRM_{READ,WRITE}32() (and thus
readl() and writel()) to access it.
Basically, if RADEON_IS_AGP then it's ioremap()'d memory else it's
vmalloc'd
On Thu, 2009-02-12 at 02:15 -0800, David Miller wrote:
The memory behind ring_rptr can either be in ioremapped memory
or a vmalloc() normal kernel memory buffer.
However, the code unconditionally uses DRM_{READ,WRITE}32() (and thus
readl() and writel()) to access it.
Basically, if
On Thu, 2009-02-12 at 21:37 +1100, Benjamin Herrenschmidt wrote:
Similar comment about potential swapper setting when accessing the RPTR
via the framebuffer. David (Airlied), what's the current status with
that stuff ? I know you work on cleaning that shit up in kms, right now,
we'll hit the
