* Masahiro Yamada <masahiroy@xxxxxxxxxx>: > > > The reason is 64BIT depends on PA8X00. > > > > > > allmodconfig chooses PA7000 instead of PA8X00 > > > in the "Processor type" choice since > > > PA7000 is the default. > > > > > > > > > If you apply this patch, > > > > > > > > > > > > diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig > > > index 7f059cd1196a..458b8e22e240 100644 > > > --- a/arch/parisc/Kconfig > > > +++ b/arch/parisc/Kconfig > > > @@ -146,7 +146,7 @@ menu "Processor type and features" > > > > > > choice > > > prompt "Processor type" > > > - default PA7000 > > > + default PA8X00 > > > > > > config PA7000 > > > bool "PA7000/PA7100" > > > > > > allmodconfig will start enabling CONFIG_64BIT, > > > but it is up to Helge. > > > > That patch "partly" works, in the sense that with: > > make ARCH=parisc64 randconfig > > > > you randomly end up with a 32- or 64-bit kernel. > > Since "ARCH=parisc64" was given, one probably would expect a 64-bit-enabled kernel randconfig, > > and with "ARCH=parisc" a 32-bit randconfig. > > But, I'm not sure if this intended or not and works that way on other arches as well. > > > Ah, OK. > > Then, you can mimic sparc code. > > In the top Makefile: > > > ifeq ($(ARCH),sparc32) > SRCARCH := sparc > endif > ifeq ($(ARCH),sparc64) > SRCARCH := sparc > endif > > > > > In arch/sparc/Kconfig: > > > config 64BIT > bool "64-bit kernel" if "$(ARCH)" = "sparc" > default "$(ARCH)" = "sparc64" > > "make ARCH=sparc32 randconfig" always disables > CONFIG_64BIT, and randomizes the rest of options. > > > "make ARCH=sparc64 randconfig" always enables > CONFIG_64BIT, and randomizes the rest of options. > > > "make ARCH=sparc randconfig" randomizes all options, > including CONFIG_64BIT. Ah, cool. Thank you! > I suggest to introduce ARCH=parisc32 No need. We already have ARCH=parisc64 or ARCH=parisc. The patch below fixes it nicely and I've pushed it into the parisc for-next git tree. @Randy: Maybe you could try it as well. With that approach you get what you want. Maybe that's a better approach for riscv64 as well? Helge >From a529c0a388f74a243363976af8535b10d3d69d20 Mon Sep 17 00:00:00 2001 From: Helge Deller <deller@xxxxxx> Date: Fri, 19 Aug 2022 19:30:50 +0200 Subject: [PATCH] parisc: Enable CONFIG_64BIT for ARCH=parisc64 only With this patch the ARCH= parameter decides if the CONFIG_64BIT option will be set or not. This means, the ARCH= parameter will give: ARCH=parisc -> 32-bit kernel ARCH=parisc64 -> 64-bit kernel This simplifies the usage of the other config options like randconfig, allmodconfig and allyesconfig a lot and produces the output which is expected for parisc64 (64-bit) vs. parisc (32-bit). Suggested-by: Masahiro Yamada <masahiroy@xxxxxxxxxx> Signed-off-by: Helge Deller <deller@xxxxxx> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index 7f059cd1196a..9aede2447011 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -146,10 +146,10 @@ menu "Processor type and features" choice prompt "Processor type" - default PA7000 + default PA7000 if "$(ARCH)" = "parisc" config PA7000 - bool "PA7000/PA7100" + bool "PA7000/PA7100" if "$(ARCH)" = "parisc" help This is the processor type of your CPU. This information is used for optimizing purposes. In order to compile a kernel @@ -160,21 +160,21 @@ config PA7000 which is required on some machines. config PA7100LC - bool "PA7100LC" + bool "PA7100LC" if "$(ARCH)" = "parisc" help Select this option for the PCX-L processor, as used in the 712, 715/64, 715/80, 715/100, 715/100XC, 725/100, 743, 748, D200, D210, D300, D310 and E-class config PA7200 - bool "PA7200" + bool "PA7200" if "$(ARCH)" = "parisc" help Select this option for the PCX-T' processor, as used in the C100, C110, J100, J110, J210XC, D250, D260, D350, D360, K100, K200, K210, K220, K400, K410 and K420 config PA7300LC - bool "PA7300LC" + bool "PA7300LC" if "$(ARCH)" = "parisc" help Select this option for the PCX-L2 processor, as used in the 744, A180, B132L, B160L, B180L, C132L, C160L, C180L, @@ -224,17 +224,8 @@ config MLONGCALLS Enabling this option will probably slow down your kernel. config 64BIT - bool "64-bit kernel" + def_bool "$(ARCH)" = "parisc64" depends on PA8X00 - help - Enable this if you want to support 64bit kernel on PA-RISC platform. - - At the moment, only people willing to use more than 2GB of RAM, - or having a 64bit-only capable PA-RISC machine should say Y here. - - Since there is no 64bit userland on PA-RISC, there is no point to - enable this option otherwise. The 64bit kernel is significantly bigger - and slower than the 32bit one. choice prompt "Kernel page size"
