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cpuidle: riscv-sbi: Fix CPU_PM_CPU_IDLE_ENTER_xyz() macro usage
[ Upstream commitcfadbb9df8
] Currently, we are using CPU_PM_CPU_IDLE_ENTER_PARAM() for all SBI HSM suspend types so retentive suspend types are also treated non-retentive and kernel will do redundant additional work for these states. The BIT[31] of SBI HSM suspend types allows us to differentiate between retentive and non-retentive suspend types so we should use this BIT to call appropriate CPU_PM_CPU_IDLE_ENTER_xyz() macro. Fixes:6abf32f1d9
("cpuidle: Add RISC-V SBI CPU idle driver") Signed-off-by: Anup Patel <apatel@ventanamicro.com> Link: https://lore.kernel.org/r/20220718084553.2056169-1-apatel@ventanamicro.com/ Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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1 changed files with 6 additions and 1 deletions
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@ -97,8 +97,13 @@ static int sbi_cpuidle_enter_state(struct cpuidle_device *dev,
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struct cpuidle_driver *drv, int idx)
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{
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u32 *states = __this_cpu_read(sbi_cpuidle_data.states);
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u32 state = states[idx];
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return CPU_PM_CPU_IDLE_ENTER_PARAM(sbi_suspend, idx, states[idx]);
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if (state & SBI_HSM_SUSP_NON_RET_BIT)
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return CPU_PM_CPU_IDLE_ENTER_PARAM(sbi_suspend, idx, state);
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else
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return CPU_PM_CPU_IDLE_ENTER_RETENTION_PARAM(sbi_suspend,
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idx, state);
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}
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static int __sbi_enter_domain_idle_state(struct cpuidle_device *dev,
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