On Mon, May 14, 2012 at 04:35:47PM -0400, David Miller wrote: > From: Sam Ravnborg <sam@xxxxxxxxxxxx> > Date: Mon, 14 May 2012 12:44:50 +0200 > > >> [PATCH] sparc32: Implement hard_smp_processor_id() via instruction patching. > >> > >> This is the last non-trivial user of btfixup. > >> > >> Like sparc64, use a special patch section to resolve the various > >> implementations of how to read the current CPU's ID when we don't > >> have current_thread_info()->cpu necessarily available. > >> > >> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> > > > > Boot tested UP and SMP builds on my ss5 - works! > > > > This variant is much easier to read/understand compared > > to the "blackbox" way! > > Thanks for testing. > > >> +1: rd %tbr, %g1 > >> + srl %g1, 12, %o0 > >> + and %o0, 3, %o0 > >> + .section .cpuid_patch, "ax" > >> + /* Instruction location. */ > >> + .word 661b > > > > You wanted to say: .word 1b here... > > I decided to use 661: to be consistent with the LOAD_CURRENT > macro. > > Fixed up and pushed out, thanks again Sam. Baah, I am the one thanking here. It would have taken me days to cook up this patch myself. Sam -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
