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| author | Palmer Dabbelt <palmer@rivosinc.com> | 2024-03-19 17:51:41 -0700 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2024-03-20 08:56:06 -0700 |
| commit | 85ab6fdf3791c68aa7b8eb484f68855b8a6b9884 (patch) | |
| tree | ca77d26acc1326d9b66b96ec821e8cf4b3ca1ee9 /arch/riscv/include/asm/suspend.h | |
| parent | 728e7ea2b56d0eba5a3c952e6c613523160723c8 (diff) | |
| parent | 359df7c5be4ba5c57f641010be7237ad9f09ea53 (diff) | |
| download | linux-85ab6fdf3791c68aa7b8eb484f68855b8a6b9884.tar.gz | |
Merge patch series "RISC-V: ACPI: Add LPI support"
Sunil V L <sunilvl@ventanamicro.com> says:
This series adds support for Low Power Idle (LPI) on ACPI based
platforms.
LPI is described in the ACPI spec [1]. RISC-V FFH spec required to
enable this is available at [2].
[1] - https://uefi.org/specs/ACPI/6.5/08_Processor_Configuration_and_Control.html#lpi-low-power-idle-states
[2] - https://github.com/riscv-non-isa/riscv-acpi-ffh/releases/download/v/riscv-ffh.pdf
* b4-shazam-merge:
ACPI: Enable ACPI_PROCESSOR for RISC-V
ACPI: RISC-V: Add LPI driver
cpuidle: RISC-V: Move few functions to arch/riscv
Link: https://lore.kernel.org/r/20240118062930.245937-1-sunilvl@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/include/asm/suspend.h')
| -rw-r--r-- | arch/riscv/include/asm/suspend.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/suspend.h b/arch/riscv/include/asm/suspend.h index 02f87867389a9e..076f8a9437cf5a 100644 --- a/arch/riscv/include/asm/suspend.h +++ b/arch/riscv/include/asm/suspend.h @@ -55,4 +55,7 @@ int hibernate_resume_nonboot_cpu_disable(void); asmlinkage void hibernate_restore_image(unsigned long resume_satp, unsigned long satp_temp, unsigned long cpu_resume); asmlinkage int hibernate_core_restore_code(void); +bool riscv_sbi_hsm_is_supported(void); +bool riscv_sbi_suspend_state_is_valid(u32 state); +int riscv_sbi_hart_suspend(u32 state); #endif |