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rtems: Add cache size functions

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Add rtems_cache_get_data_cache_size() and
rtems_cache_get_instruction_cache_size().
This commit is contained in:
Sebastian Huber
2014-02-26 11:08:31 +01:00
parent e7549ff4a1
commit e1d7bf002e
4 changed files with 81 additions and 4 deletions
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38
testsuites/sptests/spcache01/init.c
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@@ -163,12 +163,28 @@ static void test_timing(void)
rtems_interrupt_lock lock = RTEMS_INTERRUPT_LOCK_INITIALIZER;
size_t data_size = sizeof(data);
uint64_t d[3];
uint32_t cache_level;
size_t cache_size;
printf(
"data cache line size %zi bytes\n",
rtems_cache_get_data_line_size()
"data cache line size %zi bytes\n"
"data cache size %zi bytes\n",
rtems_cache_get_data_line_size(),
rtems_cache_get_data_cache_size(0)
);
cache_level = 1;
cache_size = rtems_cache_get_data_cache_size(cache_level);
while (cache_size > 0) {
printf(
"data cache level %" PRIu32 " size %zi bytes\n",
cache_level,
cache_size
);
++cache_level;
cache_size = rtems_cache_get_data_cache_size(cache_level);
}
rtems_interrupt_lock_acquire(&lock, level);
d[0] = load();
@@ -290,10 +306,24 @@ static void test_timing(void)
);
printf(
"instruction cache line size %zi bytes\n",
rtems_cache_get_instruction_line_size()
"instruction cache line size %zi bytes\n"
"instruction cache size %zi bytes\n",
rtems_cache_get_instruction_line_size(),
rtems_cache_get_instruction_cache_size(0)
);
cache_level = 1;
cache_size = rtems_cache_get_instruction_cache_size(cache_level);
while (cache_size > 0) {
printf(
"instruction cache level %" PRIu32 " size %zi bytes\n",
cache_level,
cache_size
);
++cache_level;
cache_size = rtems_cache_get_instruction_cache_size(cache_level);
}
rtems_interrupt_lock_acquire(&lock, level);
d[0] = do_some_work();