On Monday, February 01, 2016 at 10:29:51 PM, Daniel Schwierzeck wrote: > 2016-01-27 3:13 GMT+01:00 Marek Vasut <ma...@denx.de>: > > This patch makes sure that the flush/invalidate_dcache_range() functions > > can handle corner-case calls like this -- invalidate_dcache_range(0, 0, > > 0); This call is valid and is happily produced by USB EHCI code for > > example. The expected behavior of the cache function(s) in this case is > > that they will do no operation, since the size is zero. > > > > The current implementation though has a problem where such invocation > > will result in a hard CPU hang. This is because under such conditions, > > where the start_addr = 0 and stop = 0, the addr = 0 and aend = > > 0xffffffe0 . The loop will then try to iterate over the entire address > > space, which in itself is wrong. But iterating over the entire address > > space might also hit some odd address which will cause bus hang. The > > later happens on the Atheros MIPS. > > > > Signed-off-by: Marek Vasut <ma...@denx.de> > > Cc: Daniel Schwierzeck <daniel.schwierz...@gmail.com> > > Cc: Hans de Goede <hdego...@redhat.com> > > --- > > > > arch/mips/lib/cache.c | 8 ++++++++ > > 1 file changed, 8 insertions(+) > > applied to u-boot-mips, thanks
Thanks! I'll pick the remaining four, ok ? Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
