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authorAnup Patel <Anup.Patel@wdc.com>2019-05-15 06:30:39 +0000
committerPaul Walmsley <paul.walmsley@sifive.com>2019-07-01 13:04:54 -0700
commit6dd91e0eacff0a5c822ca37565d6b5740c4d2a80 (patch)
tree4498415d0d6a3f44a479f17b4c588a90a73c61c5 /arch/riscv/configs/rv32_defconfig
parent6fbc7275c7a9ba97877050335f290341a1fd8dbf (diff)
downloadlinux-6dd91e0eacff0a5c822ca37565d6b5740c4d2a80.tar.gz
RISC-V: defconfig: Enable NO_HZ_IDLE and HIGH_RES_TIMERS
This patch enables NO_HZ_IDLE (idle dynamic ticks) and HIGH_RES_TIMERS (hrtimers) in RV32 and RV64 defconfigs. Both of the above options are enabled by default for architectures such as x86, ARM, and ARM64. The idle dynamic ticks helps use save power by stopping timer ticks when the system is idle whereas hrtimers is a much improved timer subsystem compared to the old "timer wheel" based system. This patch is tested on SiFive Unleashed board and QEMU Virt machine. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Diffstat (limited to 'arch/riscv/configs/rv32_defconfig')
-rw-r--r--arch/riscv/configs/rv32_defconfig2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/riscv/configs/rv32_defconfig b/arch/riscv/configs/rv32_defconfig
index 1a911ed8e772..d5449ef805a3 100644
--- a/arch/riscv/configs/rv32_defconfig
+++ b/arch/riscv/configs/rv32_defconfig
@@ -1,5 +1,7 @@
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_HIGH_RES_TIMERS=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_CGROUPS=y