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. -- 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
