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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-02-12 10:31:38 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-02-14 10:28:29 +0100 |
| commit | 24bf11eca11947d961cc9bb5f7d92dabff169e93 (patch) | |
| tree | b28f3aa8a21df91e8feaf324613aa76460559837 /c/src/lib/libbsp/sparc/leon3/include | |
| parent | bsps/arm: Fix Cortex-A9 MPCore nanoseconds handler (diff) | |
| download | rtems-24bf11eca11947d961cc9bb5f7d92dabff169e93.tar.bz2 | |
score: Add CPU counter support
Add a CPU counter interface to allow access to a free-running counter.
It is useful to measure short time intervals. This can be used for
example to enable profiling of critical low-level functions.
Add two busy wait functions rtems_counter_delay_ticks() and
rtems_counter_delay_nanoseconds() implemented via the CPU counter.
Diffstat (limited to 'c/src/lib/libbsp/sparc/leon3/include')
| -rw-r--r-- | c/src/lib/libbsp/sparc/leon3/include/bsp.h | 4 | ||||
| -rw-r--r-- | c/src/lib/libbsp/sparc/leon3/include/leon.h | 2 |
2 files changed, 6 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/sparc/leon3/include/bsp.h b/c/src/lib/libbsp/sparc/leon3/include/bsp.h index b0a17305af..18ae87f239 100644 --- a/c/src/lib/libbsp/sparc/leon3/include/bsp.h +++ b/c/src/lib/libbsp/sparc/leon3/include/bsp.h @@ -209,6 +209,10 @@ extern void BSP_shared_interrupt_unmask(int irq); */ extern void BSP_shared_interrupt_mask(int irq); +typedef enum { + LEON3_FATAL_CPU_COUNTER_INIT +} leon3_fatal_code; + #ifdef __cplusplus } #endif diff --git a/c/src/lib/libbsp/sparc/leon3/include/leon.h b/c/src/lib/libbsp/sparc/leon3/include/leon.h index deff75ddd5..84567e46cd 100644 --- a/c/src/lib/libbsp/sparc/leon3/include/leon.h +++ b/c/src/lib/libbsp/sparc/leon3/include/leon.h @@ -317,6 +317,8 @@ int apbuart_inbyte_nonblocking(struct apbuart_regs *regs); */ void leon3_secondary_cpu_initialize(uint32_t cpu); +void leon3_cpu_counter_initialize(void); + void bsp_debug_uart_init(void); #endif /* !ASM */ |