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

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

2020-11-06 Thread Nicholas Piggin
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 alternate return location facility is added for soft-masked