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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-02-24 12:45:00 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-02-24 16:12:02 +0100 |
| commit | a4bc90af4ee55e72b18de4b64da6338634490760 (patch) | |
| tree | 64cd9a60f941054d469ce5061d9d77847de2e308 /c/src/lib/libbsp/sparc/leon3/include/leon.h | |
| parent | score: Fix thread TLS area initialization (diff) | |
| download | rtems-a4bc90af4ee55e72b18de4b64da6338634490760.tar.bz2 | |
sparc: Fix CPU counter support
The SPARC processors supported by RTEMS have no built-in CPU counter
support. We have to use some hardware counter module for this purpose.
The BSP must provide a 32-bit register which contains the current CPU
counter value and a function for the difference calculation. It can use
for example the GPTIMER instance used for the clock driver.
Diffstat (limited to 'c/src/lib/libbsp/sparc/leon3/include/leon.h')
| -rw-r--r-- | c/src/lib/libbsp/sparc/leon3/include/leon.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/sparc/leon3/include/leon.h b/c/src/lib/libbsp/sparc/leon3/include/leon.h index ccee1a381d..e4710cde7d 100644 --- a/c/src/lib/libbsp/sparc/leon3/include/leon.h +++ b/c/src/lib/libbsp/sparc/leon3/include/leon.h @@ -273,6 +273,13 @@ extern rtems_interrupt_lock LEON3_IrqCtrl_Lock; #define LEON_REG_TIMER_COUNTER_DEFINED_MASK 0x00000003 #define LEON_REG_TIMER_COUNTER_CURRENT_MODE_MASK 0x00000003 +#if defined(RTEMS_MULTIPROCESSING) + #define LEON3_CLOCK_INDEX \ + (rtems_configuration_get_user_multiprocessing_table() ? LEON3_Cpu_Index : 0) +#else + #define LEON3_CLOCK_INDEX 0 +#endif + /* Load 32-bit word by forcing a cache-miss */ static inline unsigned int leon_r32_no_cache(uintptr_t addr) { |