diff options
| -rw-r--r-- | firmware/export/config/fiiom3k.h | 9 | ||||
| -rw-r--r-- | firmware/target/mips/ingenic_x1000/kernel-x1000.c | 20 |
2 files changed, 1 insertions, 28 deletions
diff --git a/firmware/export/config/fiiom3k.h b/firmware/export/config/fiiom3k.h index 99285728a2..115532dc39 100644 --- a/firmware/export/config/fiiom3k.h +++ b/firmware/export/config/fiiom3k.h @@ -10,19 +10,12 @@ /* CPU defines */ #define CONFIG_CPU X1000 #define X1000_EXCLK_FREQ 24000000 +#define CPU_FREQ 1008000000 #ifndef SIMULATOR #define TIMER_FREQ X1000_EXCLK_FREQ #endif -#define CPU_FREQ 1008000000 -#define CPUFREQ_MAX CPU_FREQ -/* TODO: figure out if this does in fact affect power consumption. */ -#define CPUFREQ_DEFAULT (CPUFREQ_MAX/4) -#define CPUFREQ_NORMAL (CPUFREQ_MAX/4) -#define HAVE_ADJUSTABLE_CPU_FREQ -#define HAVE_GUI_BOOST - /* Kernel defines */ #define INCLUDE_TIMEOUT_API #define HAVE_SEMAPHORE_OBJECTS diff --git a/firmware/target/mips/ingenic_x1000/kernel-x1000.c b/firmware/target/mips/ingenic_x1000/kernel-x1000.c index eb7c3d6124..8d272bdaa9 100644 --- a/firmware/target/mips/ingenic_x1000/kernel-x1000.c +++ b/firmware/target/mips/ingenic_x1000/kernel-x1000.c @@ -23,26 +23,6 @@ #include "system.h" #include "x1000/ost.h" -/* TODO: implement a CPU frequency switching policy based on CPU utilization - * - * The basic assumption is that the workload consumes a fixed number of CPU - * cycles per second on average (= utilization), so we can set the frequency - * based on that value. Audio playback should fit this usage pattern well, so - * it's a good fit for Rockbox. - * - * It's easier to understand in terms of fluid flow -- we need to keep - * a reservoir of water topped up, CPU frequency is the inflow rate, and - * CPU utilization is the outflow rate. The goal is to avoid running dry - * and minimize the inflow rate. - * - * The only tricky part here is handing usage spikes -- CPU frequency has to - * increase faster than utilization or there's a risk of audio dropouts. - * - * Rockbox CPU boost could be used as a hint to scale up frequency faster. - * If that's not necessary to get good results, HAVE_ADJUSTABLE_CPU_FREQ can - * be disabled entirely. - */ - #define CPU_IDLE_SAMPLES 100 void tick_start(unsigned interval_in_ms) |