Le 24/05/2024 à 14:17, Athira Rajeev a écrit : > > >> On 7 May 2024, at 3:33 PM, Christophe Leroy <christophe.le...@csgroup.eu> >> wrote: >> >> >> >> Le 06/05/2024 à 14:19, Athira Rajeev a écrit : >>> There are cases where define a global register variable and associate it >>> with a specified register. Example, in powerpc, two registers are >>> defined to represent variable: >>> 1. r13: represents local_paca >>> register struct paca_struct *local_paca asm("r13"); >>> >>> 2. r1: represents stack_pointer >>> register void *__stack_pointer asm("r1"); >> >> What about r2: >> >> register struct task_struct *current asm ("r2"); > > Hi Christophe, > > Referring to arch/powerpc/include/asm/current.h, “current” in powerpc 64 bit > is from paca_struct which is handled with r13 > R2 definition which you shared above is for 32 bit case. >
Hi Athira, Yes I know. Your patches are meant to handle both powerpc/64 and powerpc/32, aren't they ? Christophe