Re: [RFC PATCH 0/9] powerpc/64s: fast interrupt exit

2020-11-10 Thread Nicholas Piggin
Excerpts from Christophe Leroy's message of November 10, 2020 9:31 pm: > > > Le 10/11/2020 à 09:49, Nicholas Piggin a écrit : >> Excerpts from Christophe Leroy's message of November 7, 2020 8:35 pm: >>> >>> >>> Le 06/11/2020 à 16:59, Nicholas Piggin a écrit : This series attempts to improve

Re: [RFC PATCH 0/9] powerpc/64s: fast interrupt exit

2020-11-10 Thread Christophe Leroy
Le 10/11/2020 à 09:49, Nicholas Piggin a écrit : Excerpts from Christophe Leroy's message of November 7, 2020 8:35 pm: Le 06/11/2020 à 16:59, Nicholas Piggin a écrit : This series attempts to improve the speed of interrupts and system calls in two major ways. Firstly, the SRR/HSRR

Re: [RFC PATCH 0/9] powerpc/64s: fast interrupt exit

2020-11-10 Thread Nicholas Piggin
Excerpts from Christophe Leroy's message of November 7, 2020 8:35 pm: > > > Le 06/11/2020 à 16:59, Nicholas Piggin a écrit : >> This series attempts to improve the speed of interrupts and system calls >> in two major ways. >> >> Firstly, the SRR/HSRR registers do not need to be reloaded if they

Re: [RFC PATCH 0/9] powerpc/64s: fast interrupt exit

2020-11-07 Thread Christophe Leroy
Le 06/11/2020 à 16:59, Nicholas Piggin a écrit : This series attempts to improve the speed of interrupts and system calls in two major ways. Firstly, the SRR/HSRR registers do not need to be reloaded if they were not used or clobbered fur the duration of the interrupt. Secondly, an