[PATCH v3 18/18] powerpc/microwatt: Don't select the hash MMU code
From: Nicholas Piggin <npiggin@gmail.com>
Date: 2021-10-21 22:42:53
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
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(-)
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
--
2.23.0