From 4382f8773eaa94c43dc6cc0f19591d2607a34f20 Mon Sep 17 00:00:00 2001 From: Amaury Pouly Date: Fri, 6 Oct 2017 18:31:35 +0200 Subject: cleanup linux cpuinfo code sonynwz: quirk for cpufreq broken driver There was some redundancy between frequency_linux(cpu, true) and current_scaling_frequency(), also I see no reason to compile the cpuinfo stuff unconditionally and the scaling info only on DX since it was already printed some partial scaling info anyway. Thus compile all the code unconditionally and simplify the logic in the debug menu. Also avoid putting buffers of size PATH_MAX on stack since it can be quite big and we only requires 64 bytes for those paths. On Sony NWZ, the cpu driver reports frequency in MHz instead of kHz thus we need to make the cpuinfo code aware of that bug. Change-Id: I61af45ab5f179ecc909b4841b9137a915a60193a --- firmware/target/hosted/cpuinfo-linux.h | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'firmware/target/hosted/cpuinfo-linux.h') diff --git a/firmware/target/hosted/cpuinfo-linux.h b/firmware/target/hosted/cpuinfo-linux.h index 0483a3a9aa..defbf2f374 100644 --- a/firmware/target/hosted/cpuinfo-linux.h +++ b/firmware/target/hosted/cpuinfo-linux.h @@ -39,9 +39,12 @@ struct time_state { }; int cpuusage_linux(struct cpuusage* u); -int frequency_linux(int cpu, bool scaling); +/* Return the frequency of a CPU. Note that whenever CPU frequency scaling is supported by the + * driver, this frequency may not be accurate and may vaguely reflect the cpu mode. Use + * current_scaling_frequency() to get the actual frequency if scaling is supported. + * Return -1 on error. */ +int frequency_linux(int cpu); -#if defined(DX50) || defined(DX90) /* Get the current cpufreq scaling governor. cpu [in]: The number of the cpu to query. @@ -60,7 +63,6 @@ bool current_scaling_governor(int cpu, char* governor, int governor_size); int min_scaling_frequency(int cpu); int current_scaling_frequency(int cpu); int max_scaling_frequency(int cpu); -#endif int cpustatetimes_linux(int cpu, struct time_state* data, int max_elements); int cpucount_linux(void); -- cgit v1.2.3