main.c File Reference

#include <zephyr/ztest.h>
#include <zephyr/kernel.h>
#include <zephyr/irq_offload.h>

Macros
#define	STACK_SIZE   2048
#define	NO_FPU   NULL
#define	WITH_FPU   (const void *)1
#define	TEST_TRAP(insn)
#define	PRE_INSN   __asm__ volatile (".option push; .option norvc");
#define	POST_INSN   __asm__ volatile (".option pop");
#define	PRE_INSN
#define	POST_INSN

Functions
static unsigned long	fpu_state (void)
static bool	fpu_is_off (void)
static bool	fpu_is_clean (void)
static bool	fpu_is_dirty (void)
void	test_basics (void)
static void	new_thread_check (const char *name)
static	K_SEM_DEFINE (thread1_sem, 0, 1)
static	K_SEM_DEFINE (thread2_sem, 0, 1)
static	K_THREAD_STACK_DEFINE (thread1_stack, 2048)
static	K_THREAD_STACK_DEFINE (thread2_stack, 2048)
static void	thread1_entry (void *p1, void *p2, void *p3)
static void	thread2_entry (void *p1, void *p2, void *p3)
void	test_multi_thread_interaction (void)
static void	exception_context (const void *arg)
void	test_thread_vs_exc_interaction (void)
void	test_fp_insn_trap (void)
	ZTEST_SUITE (riscv_fpu_sharing, NULL, NULL, NULL, NULL, NULL)

Variables
static struct k_thread	thread1
static struct k_thread	thread2

Macro Definition Documentation

NO_FPU

#define NO_FPU   NULL

POST_INSN [1/2]

#define POST_INSN   __asm__ volatile (".option pop");

POST_INSN [2/2]

#define POST_INSN

PRE_INSN [1/2]

#define PRE_INSN   __asm__ volatile (".option push; .option norvc");

PRE_INSN [2/2]

#define PRE_INSN

STACK_SIZE

#define STACK_SIZE   2048

TEST_TRAP

#define TEST_TRAP

(

insn

)

Value:

        /* disable the FPU access */ \
        zassert_true(k_float_disable(k_current_get()) == 0); \
        zassert_true(fpu_is_off()); \
        /* execute the instruction */ \
        { \
                /* use a0 to be universal with all configs */ \
                register unsigned long __r __asm__ ("a0") = reg; \
                PRE_INSN \
                __asm__ volatile (insn : "+r" (__r) : : "fa0", "fa1", "memory"); \
                POST_INSN \
                reg = __r; \
        } \
        /* confirm that the FPU state has changed */ \
        zassert_true(!fpu_is_off())

WITH_FPU

#define WITH_FPU   (const void *)1

Function Documentation

exception_context()

static void exception_context ( const void * arg )

static

fpu_is_clean()

static bool fpu_is_clean ( void )

inlinestatic

fpu_is_dirty()

static bool fpu_is_dirty ( void )

inlinestatic

fpu_is_off()

static bool fpu_is_off ( void )

inlinestatic

fpu_state()

static unsigned long fpu_state ( void )

inlinestatic

K_SEM_DEFINE() [1/2]

static K_SEM_DEFINE ( thread1_sem , 0 , 1  )

static

K_SEM_DEFINE() [2/2]

static K_SEM_DEFINE ( thread2_sem , 0 , 1  )

static

K_THREAD_STACK_DEFINE() [1/2]

static K_THREAD_STACK_DEFINE ( thread1_stack , 2048  )

static

K_THREAD_STACK_DEFINE() [2/2]

static K_THREAD_STACK_DEFINE ( thread2_stack , 2048  )

static

new_thread_check()

static void new_thread_check ( const char * name )

static

test_basics()

void test_basics

(

void

)

test_fp_insn_trap()

void test_fp_insn_trap

(

void

)

test_multi_thread_interaction()

void test_multi_thread_interaction

(

void

)

test_thread_vs_exc_interaction()

void test_thread_vs_exc_interaction

(

void

)

thread1_entry()

static void thread1_entry ( void * p1, void * p2, void * p3 )

static

thread2_entry()

static void thread2_entry ( void * p1, void * p2, void * p3 )

static

ZTEST_SUITE()

ZTEST_SUITE	(	riscv_fpu_sharing	,
		NULL	,
		NULL	,
		NULL	,
		NULL	,
		NULL	)

Variable Documentation

thread1

struct k_thread thread1

static

thread2

struct k_thread thread2

static