From 8a02d99876362f35bc918097440445de18e3c47c Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 16 Mar 2021 16:54:03 +0100 Subject: ACPI: CPPC: Add emtpy stubs of functions for CONFIG_ACPI_CPPC_LIB unset For convenience, add empty stubs of library functions defined in cppc_acpi.c for the CONFIG_ACPI_CPPC_LIB unset case. Because one of them needs to return CPUFREQ_ETERNAL, include linux/cpufreq.h into the CPPC library header file and drop the direct inclusion of it from cppc_acpi.c. Signed-off-by: Rafael J. Wysocki Tested-by: Chen Yu --- include/acpi/cppc_acpi.h | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) (limited to 'include/acpi') diff --git a/include/acpi/cppc_acpi.h b/include/acpi/cppc_acpi.h index c7fc4524e151..9f4985b4d64d 100644 --- a/include/acpi/cppc_acpi.h +++ b/include/acpi/cppc_acpi.h @@ -11,6 +11,7 @@ #define _CPPC_ACPI_H #include +#include #include #include @@ -132,6 +133,7 @@ struct cppc_cpudata { cpumask_var_t shared_cpu_map; }; +#ifdef CONFIG_ACPI_CPPC_LIB extern int cppc_get_desired_perf(int cpunum, u64 *desired_perf); extern int cppc_get_perf_ctrs(int cpu, struct cppc_perf_fb_ctrs *perf_fb_ctrs); extern int cppc_set_perf(int cpu, struct cppc_perf_ctrls *perf_ctrls); @@ -142,5 +144,43 @@ extern unsigned int cppc_get_transition_latency(int cpu); extern bool cpc_ffh_supported(void); extern int cpc_read_ffh(int cpunum, struct cpc_reg *reg, u64 *val); extern int cpc_write_ffh(int cpunum, struct cpc_reg *reg, u64 val); +#else /* !CONFIG_ACPI_CPPC_LIB */ +static inline int cppc_get_desired_perf(int cpunum, u64 *desired_perf) +{ + return -ENOTSUPP; +} +static inline int cppc_get_perf_ctrs(int cpu, struct cppc_perf_fb_ctrs *perf_fb_ctrs) +{ + return -ENOTSUPP; +} +static inline int cppc_set_perf(int cpu, struct cppc_perf_ctrls *perf_ctrls) +{ + return -ENOTSUPP; +} +static inline int cppc_get_perf_caps(int cpu, struct cppc_perf_caps *caps) +{ + return -ENOTSUPP; +} +static inline bool acpi_cpc_valid(void) +{ + return false; +} +static inline unsigned int cppc_get_transition_latency(int cpu) +{ + return CPUFREQ_ETERNAL; +} +static inline bool cpc_ffh_supported(void) +{ + return false; +} +static inline int cpc_read_ffh(int cpunum, struct cpc_reg *reg, u64 *val) +{ + return -ENOTSUPP; +} +static inline int cpc_write_ffh(int cpunum, struct cpc_reg *reg, u64 val) +{ + return -ENOTSUPP; +} +#endif /* !CONFIG_ACPI_CPPC_LIB */ #endif /* _CPPC_ACPI_H*/ -- cgit v1.2.3