| Message ID | 20211021223013.2641952-19-npiggin@gmail.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | powerpc: Make hash MMU code build configurable | expand |
| Related | show |
Le 22/10/2021 à 00:30, Nicholas Piggin a écrit : > Microwatt is radix-only, so it does not require hash MMU support. > > This saves 20kB compressed dtbImage and 56kB vmlinux size. I think patch 17 and 18 should be squashed together. > > Signed-off-by: Nicholas Piggin <npiggin@gmail.com> > --- > arch/powerpc/configs/microwatt_defconfig | 2 +- > arch/powerpc/platforms/microwatt/Kconfig | 1 - > 2 files changed, 1 insertion(+), 2 deletions(-) > > diff --git a/arch/powerpc/configs/microwatt_defconfig b/arch/powerpc/configs/microwatt_defconfig > index 6e62966730d3..de1dcff05734 100644 > --- a/arch/powerpc/configs/microwatt_defconfig > +++ b/arch/powerpc/configs/microwatt_defconfig > @@ -16,6 +16,7 @@ CONFIG_EMBEDDED=y > # CONFIG_SLAB_MERGE_DEFAULT is not set > CONFIG_PPC64=y > CONFIG_POWER9_CPU=y > +# CONFIG_PPC_64S_HASH_MMU is not set > # CONFIG_PPC_KUEP is not set > # CONFIG_PPC_KUAP is not set > CONFIG_CPU_LITTLE_ENDIAN=y > @@ -27,7 +28,6 @@ CONFIG_PPC_MICROWATT=y > # CONFIG_PPC_OF_BOOT_TRAMPOLINE is not set > CONFIG_CPU_FREQ=y > CONFIG_HZ_100=y > -# CONFIG_PPC_MEM_KEYS is not set > # CONFIG_SECCOMP is not set > # CONFIG_MQ_IOSCHED_KYBER is not set > # CONFIG_COREDUMP is not set > diff --git a/arch/powerpc/platforms/microwatt/Kconfig b/arch/powerpc/platforms/microwatt/Kconfig > index 823192e9d38a..5e320f49583a 100644 > --- a/arch/powerpc/platforms/microwatt/Kconfig > +++ b/arch/powerpc/platforms/microwatt/Kconfig > @@ -5,7 +5,6 @@ config PPC_MICROWATT > select PPC_XICS > select PPC_ICS_NATIVE > select PPC_ICP_NATIVE > - select PPC_HASH_MMU_NATIVE if PPC_64S_HASH_MMU > select PPC_UDBG_16550 > select ARCH_RANDOM > help >
Excerpts from Christophe Leroy's message of October 22, 2021 5:18 pm: > > > Le 22/10/2021 à 00:30, Nicholas Piggin a écrit : >> Microwatt is radix-only, so it does not require hash MMU support. >> >> This saves 20kB compressed dtbImage and 56kB vmlinux size. > > I think patch 17 and 18 should be squashed together. Okay will do. Thanks for the reviews. Thanks, Nick
diff --git a/arch/powerpc/configs/microwatt_defconfig b/arch/powerpc/configs/microwatt_defconfig index 6e62966730d3..de1dcff05734 100644 --- a/arch/powerpc/configs/microwatt_defconfig +++ b/arch/powerpc/configs/microwatt_defconfig @@ -16,6 +16,7 @@ CONFIG_EMBEDDED=y # CONFIG_SLAB_MERGE_DEFAULT is not set CONFIG_PPC64=y CONFIG_POWER9_CPU=y +# CONFIG_PPC_64S_HASH_MMU is not set # CONFIG_PPC_KUEP is not set # CONFIG_PPC_KUAP is not set CONFIG_CPU_LITTLE_ENDIAN=y @@ -27,7 +28,6 @@ CONFIG_PPC_MICROWATT=y # CONFIG_PPC_OF_BOOT_TRAMPOLINE is not set CONFIG_CPU_FREQ=y CONFIG_HZ_100=y -# CONFIG_PPC_MEM_KEYS is not set # CONFIG_SECCOMP is not set # CONFIG_MQ_IOSCHED_KYBER is not set # CONFIG_COREDUMP is not set diff --git a/arch/powerpc/platforms/microwatt/Kconfig b/arch/powerpc/platforms/microwatt/Kconfig index 823192e9d38a..5e320f49583a 100644 --- a/arch/powerpc/platforms/microwatt/Kconfig +++ b/arch/powerpc/platforms/microwatt/Kconfig @@ -5,7 +5,6 @@ config PPC_MICROWATT select PPC_XICS select PPC_ICS_NATIVE select PPC_ICP_NATIVE - select PPC_HASH_MMU_NATIVE if PPC_64S_HASH_MMU select PPC_UDBG_16550 select ARCH_RANDOM help
Microwatt is radix-only, so it does not require hash MMU support. This saves 20kB compressed dtbImage and 56kB vmlinux size. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> --- arch/powerpc/configs/microwatt_defconfig | 2 +- arch/powerpc/platforms/microwatt/Kconfig | 1 - 2 files changed, 1 insertion(+), 2 deletions(-)