Files
lk/app/tests/float.c
Travis Geiselbrecht 6cb02526b7 [include][console] split lib/console.h into two
TL;DR most uses of lib/console.h -> lk/console_cmd.h

Move the part that lets a piece of code somewhere in the system to
define a console command from the actual lib/console api to start an
instance of the console. Move in almost every place the user of the
console command definition to the new header, lk/console_cmd.h which is
always in the include path.

Also remove most uses of testing for WITH_LIB_CONSOLE since you can
almost always just safely define it and then let the linker remove it.
2019-07-13 16:56:33 -07:00

107 lines
2.7 KiB
C

/*
* Copyright (c) 2013-2015 Travis Geiselbrecht
*
* Use of this source code is governed by a MIT-style
* license that can be found in the LICENSE file or at
* https://opensource.org/licenses/MIT
*/
#if ARM_WITH_VFP || ARCH_ARM64 || X86_WITH_FPU
#include <stdio.h>
#include <rand.h>
#include <lk/err.h>
#include <lk/console_cmd.h>
#include <app/tests.h>
#include <kernel/thread.h>
#include <kernel/mutex.h>
#include <kernel/semaphore.h>
#include <kernel/event.h>
#include <platform.h>
extern void float_vfp_arm_instruction_test(void);
extern void float_vfp_thumb_instruction_test(void);
extern void float_neon_arm_instruction_test(void);
extern void float_neon_thumb_instruction_test(void);
#if !ARM_WITH_VFP_SP_ONLY
#define FLOAT float
#else
#define FLOAT float
#endif
/* optimize this function to cause it to try to use a lot of registers */
__OPTIMIZE("O3")
static int float_thread(void *arg) {
FLOAT *val = arg;
uint i, j;
FLOAT a[16];
/* do a bunch of work with floating point to test context switching */
a[0] = *val;
for (i = 1; i < countof(a); i++) {
a[i] = a[i-1] * 1.01f;
}
for (i = 0; i < 1000000; i++) {
a[0] += 0.001f;
for (j = 1; j < countof(a); j++) {
a[j] += a[j-1] * 0.00001f;
}
}
*val = a[countof(a) - 1];
return 1;
}
#if ARCH_ARM && !ARM_ISA_ARMV7M
static void arm_float_instruction_trap_test(void) {
printf("testing fpu trap\n");
#if !ARM_ONLY_THUMB
float_vfp_arm_instruction_test();
float_neon_arm_instruction_test();
#endif
float_vfp_thumb_instruction_test();
float_neon_thumb_instruction_test();
printf("if we got here, we probably decoded everything properly\n");
}
#endif
static void float_tests(void) {
printf("floating point test:\n");
/* test lazy fpu load on separate thread */
thread_t *t[8];
FLOAT val[countof(t)];
printf("creating %u floating point threads\n", countof(t));
for (uint i = 0; i < countof(t); i++) {
val[i] = i;
char name[32];
snprintf(name, sizeof(name), "float %u", i);
t[i] = thread_create(name, &float_thread, &val[i], LOW_PRIORITY, DEFAULT_STACK_SIZE);
thread_resume(t[i]);
}
int res;
for (uint i = 0; i < countof(t); i++) {
thread_join(t[i], &res, INFINITE_TIME);
printf("float thread %u returns %d, val %f\n", i, res, val[i]);
}
printf("the above values should be close\n");
#if ARCH_ARM && !ARM_ISA_ARMV7M
/* test all the instruction traps */
arm_float_instruction_trap_test();
#endif
}
STATIC_COMMAND_START
STATIC_COMMAND("float_tests", "floating point test", (console_cmd)&float_tests)
STATIC_COMMAND_END(float_tests);
#endif // ARM_WITH_VFP || ARCH_ARM64