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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-03-16 18:54:03 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-03-23 21:44:17 +0300 |
| commit | 8a02d99876362f35bc918097440445de18e3c47c (patch) | |
| tree | e94c6efad24c567cbaeff6b7836b1227c0b69e40 /include/acpi | |
| parent | 0d02ec6b3136c73c09e7859f0d0e4e2c4c07b49b (diff) | |
| download | linux-8a02d99876362f35bc918097440445de18e3c47c.tar.xz | |
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 <rafael.j.wysocki@intel.com>
Tested-by: Chen Yu <yu.c.chen@intel.com>
Diffstat (limited to 'include/acpi')
| -rw-r--r-- | include/acpi/cppc_acpi.h | 40 |
1 files changed, 40 insertions, 0 deletions
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 <linux/acpi.h> +#include <linux/cpufreq.h> #include <linux/types.h> #include <acpi/pcc.h> @@ -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*/ |