diff options
| author | Andrew Jones <ajones@ventanamicro.com> | 2023-12-06 12:08:09 +0100 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2024-01-11 07:36:26 -0800 |
| commit | 4dc4af9ce32681fbd16aa0e757ccba341cc9d4ca (patch) | |
| tree | 6f0c909636e563aeb5f5e1d94c752677e992199c /arch/riscv/Kconfig | |
| parent | 3a58275099b9cbfb9d86b85824fb3a5de796c815 (diff) | |
riscv: sbi: Introduce system suspend support
When the SUSP SBI extension is present it implies that the standard
"suspend to RAM" type is available. Wire it up to the generic
platform suspend support, also applying the already present support
for non-retentive CPU suspend. When the kernel is built with
CONFIG_SUSPEND, one can do 'echo mem > /sys/power/state' to suspend.
Resumption will occur when a platform-specific wake-up event arrives.
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Tested-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20231206110807.35882-4-ajones@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/Kconfig')
| -rw-r--r-- | arch/riscv/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 3db3d0fa046e..e0e7cb89ee34 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -66,7 +66,7 @@ config RISCV select CLINT_TIMER if !MMU select CLONE_BACKWARDS select COMMON_CLK - select CPU_PM if CPU_IDLE || HIBERNATION + select CPU_PM if CPU_IDLE || HIBERNATION || SUSPEND select EDAC_SUPPORT select FRAME_POINTER if PERF_EVENTS || (FUNCTION_TRACER && !DYNAMIC_FTRACE) select GENERIC_ARCH_TOPOLOGY |