Unfortunately, FIT exists only on Book E CPUs and MPC74xx aren't Book
E, IIUC.
By the name "FIT" perhaps, but MPC74xx has essentially
the same thing.
Set MMCR0[TBEE], set MMCR0[PMXE], and choose a TBL bit via
MMCR0[TBSEL].
That's the performance monitor, which could very well be
in use already (for performance monitoring stuff, who
would have guessed).
It's also possible to trigger on the CPU cycle counter, but this would
cost one of the performance counters. MPC7400 has 4, later CPUs have 6
or more, and I think xPC7x0 had only 2.
7xx has at least four as well.
Segher
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
