Source of atomic64_test.c - linux-imx - PHYTEC BitBucket (Stash)

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    CMPXCHG_FAMILY_TEST(, v0, v1, onestwos);
​
}
​
#define INIT(c) do { atomic64_set(&v, c); r = c; } while (0)
static __init void test_atomic64(void)
{
    long long v0 = 0xaaa31337c001d00dLL;
    long long v1 = 0xdeadbeefdeafcafeLL;
    long long v2 = 0xfaceabadf00df001LL;
    long long v3 = 0x8000000000000000LL;
    long long onestwos = 0x1111111122222222LL;
    long long one = 1LL;
    int r_int;
​
    atomic64_t v = ATOMIC64_INIT(v0);
    long long r = v0;
    BUG_ON(v.counter != r);
​
    atomic64_set(&v, v1);
    r = v1;
    BUG_ON(v.counter != r);
    BUG_ON(atomic64_read(&v) != r);
​
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    BUG_ON(v.counter != r);
​
    INIT(0);
    BUG_ON(atomic64_inc_not_zero(&v));
    BUG_ON(v.counter != r);
​
    INIT(-one);
    BUG_ON(!atomic64_inc_not_zero(&v));
    r += one;
    BUG_ON(v.counter != r);
​
    /* Confirm the return value fits in an int, even if the value doesn't */
    INIT(v3);
    r_int = atomic64_inc_not_zero(&v);
    BUG_ON(!r_int);
}
​
static __init int test_atomics_init(void)
{
    test_atomic();
    test_atomic64();
​
#ifdef CONFIG_X86
    pr_info("passed for %s platform %s CX8 and %s SSE\n",
#ifdef CONFIG_X86_64