On Mar 18, 2008, at 12:05 PM, Scott Wood wrote:
On Fri, Mar 07, 2008 at 05:59:03PM -0600, Andy Fleming wrote:
Not all e300 cores support the performance monitors, and the ones
that don't will be confused by the mf/mtpmr instructions. This
allows the support to be optional, so the 8349 can turn it off
while the 8379 can turn it on. Sadly, those aren't config options,
so it will be left to the defconfigs and the users to make that
determination.
So does this mean we can't do multiplatform of something with
perfmon and
something without perfmon? Seems like this should come from the
device
tree, or PVR, or some other runtime check.
It possible if your binutils supports generating the instructions. I
believe Kim was going to look at doing a patch to use a #define
MFPMR(x)/#define MTPMR() so we don't have to worry about toolchain
versions.
- k
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