michaelh/zephyr
1
0
Fork 0
Code Releases Activity

tests: app_kernel: Add custom syscalls

Browse source 
Adds two custom syscalls. The first allows a user thread to
change its priority to a higher priority level. The second
is used to obtain a timestamp from a user thread.

Signed-off-by: Peter Mitsis <peter.mitsis@intel.com>
This commit is contained in:
Peter Mitsis 2023-10-19 15:53:53 -04:00 • committed by Carles Cufí
commit f9cf48313b
3 changed files with 60 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

3
tests/benchmarks/app_kernel/prj.conf
View file

@ -19,3 +19,6 @@ CONFIG_MP_MAX_NUM_CPUS=1
# Enable pipes
CONFIG_PIPES=y
CONFIG_APPLICATION_DEFINED_SYSCALL=y
CONFIG_TIMING_FUNCTIONS=y

51
tests/benchmarks/app_kernel/src/master.c
View file

@ -66,6 +66,57 @@ K_PIPE_DEFINE(PIPE_NOBUFF, 0, 4);
K_PIPE_DEFINE(PIPE_SMALLBUFF, 256, 4);
K_PIPE_DEFINE(PIPE_BIGBUFF, 4096, 4);
/*
* Custom syscalls
*/
/**
* @brief Change a thread's priority
*
* Unlike the normal k_thread_priority_set(), this custom syscall allows
* a user thread to raise its priority.
*/
void z_impl_test_thread_priority_set(k_tid_t thread, int prio)
{
extern void z_thread_priority_set(struct k_thread *thread, int prio);
z_thread_priority_set((struct k_thread *)thread, prio);
}
#ifdef CONFIG_USERSPACE
static void z_vrfy_test_thread_priority_set(k_tid_t thread, int prio)
{
z_impl_test_thread_priority_set(thread, prio);
}
#include <syscalls/test_thread_priority_set_mrsh.c>
#endif
/**
* @brief Obtain a timestamp
*
* Architecture timestamp routines often require MMIO that is not mapped to
* the user threads. Use a custom system call to get the timestamp.
*/
timing_t z_impl_timing_timestamp_get(void)
{
return timing_counter_get();
}
#ifdef CONFIG_USERSPACE
static timing_t z_vrfy_timing_timestamp_get(void)
{
return z_impl_timing_timestamp_get();
}
#include <syscalls/timing_timestamp_get_mrsh.c>
#endif
/*
* Main test
*/
/**
* @brief Entry point for test thread
*/

6
tests/benchmarks/app_kernel/src/master.h
View file

@ -22,6 +22,7 @@
#include <zephyr/sys/util.h>
#include <zephyr/app_memory/app_memdomain.h>
#include <zephyr/timing/timing.h>
/* printf format defines. */
#define FORMAT "| %-65s|%10u|\n"
@ -140,4 +141,9 @@ static inline void check_result(void)
}
}
__syscall void test_thread_priority_set(k_tid_t thread, int prio);
__syscall timing_t timing_timestamp_get(void);
#include <syscalls/master.h>
#endif /* _MASTER_H */