Exemplos de c0_compare_int_pending em C++ (Cpp)

Exemplo n.º 1

int c0_compare_int_usable(void)
{
	unsigned int delta;
	unsigned int cnt;

	/*
	 * IP7 already pending?  Try to clear it by acking the timer.
	 */
	if (c0_compare_int_pending()) {
		write_c0_compare(read_c0_count());
		compare_change_hazard();
		if (c0_compare_int_pending())
			return 0;
	}

	for (delta = 0x10; delta <= 0x400000; delta <<= 1) {
		cnt = read_c0_count();
		cnt += delta;
		write_c0_compare(cnt);
		compare_change_hazard();
		if ((int)(read_c0_count() - cnt) < 0)
		    break;
		/* increase delta if the timer was already expired */
	}

	while ((int)(read_c0_count() - cnt) <= 0)
		;	/* Wait for expiry  */

	compare_change_hazard();
	if (!c0_compare_int_pending())
		return 0;

	write_c0_compare(read_c0_count());
	compare_change_hazard();
	if (c0_compare_int_pending())
		return 0;

	/*
	 * Feels like a real count / compare timer.
	 */
	return 1;
}

Exemplo n.º 2

Arquivo: cevt-r4k.c Projeto: ravi-vid/linux-xlnx

int c0_compare_int_usable(void)
{
    unsigned int delta;
    unsigned int cnt;

#ifdef CONFIG_KVM_GUEST
    return 1;
#endif

    /*
     * IP7 already pending?	 Try to clear it by acking the timer.
     */
    if (c0_compare_int_pending()) {
        cnt = read_c0_count();
        write_c0_compare(cnt);
        back_to_back_c0_hazard();
        while (read_c0_count() < (cnt  + COMPARE_INT_SEEN_TICKS))
            if (!c0_compare_int_pending())
                break;
        if (c0_compare_int_pending())
            return 0;
    }

    for (delta = 0x10; delta <= 0x400000; delta <<= 1) {
        cnt = read_c0_count();
        cnt += delta;
        write_c0_compare(cnt);
        back_to_back_c0_hazard();
        if ((int)(read_c0_count() - cnt) < 0)
            break;
        /* increase delta if the timer was already expired */
    }

    while ((int)(read_c0_count() - cnt) <= 0)
        ;	/* Wait for expiry  */

    while (read_c0_count() < (cnt + COMPARE_INT_SEEN_TICKS))
        if (c0_compare_int_pending())
            break;
    if (!c0_compare_int_pending())
        return 0;
    cnt = read_c0_count();
    write_c0_compare(cnt);
    back_to_back_c0_hazard();
    while (read_c0_count() < (cnt + COMPARE_INT_SEEN_TICKS))
        if (!c0_compare_int_pending())
            break;
    if (c0_compare_int_pending())
        return 0;

    /*
     * Feels like a real count / compare timer.
     */
    return 1;
}

Exemplo n.º 3

Arquivo: cevt-r4k.c Projeto: romanbb/android_kernel_lge_d851

int c0_compare_int_usable(void)
{
	unsigned int delta;
	unsigned int cnt;

	/*
                                                              
  */
	if (c0_compare_int_pending()) {
		cnt = read_c0_count();
		write_c0_compare(cnt);
		back_to_back_c0_hazard();
		while (read_c0_count() < (cnt  + COMPARE_INT_SEEN_TICKS))
			if (!c0_compare_int_pending())
				break;
		if (c0_compare_int_pending())
			return 0;
	}

	for (delta = 0x10; delta <= 0x400000; delta <<= 1) {
		cnt = read_c0_count();
		cnt += delta;
		write_c0_compare(cnt);
		back_to_back_c0_hazard();
		if ((int)(read_c0_count() - cnt) < 0)
		    break;
		/*                                                 */
	}

	while ((int)(read_c0_count() - cnt) <= 0)
		;	/*                  */

	while (read_c0_count() < (cnt + COMPARE_INT_SEEN_TICKS))
		if (c0_compare_int_pending())
			break;
	if (!c0_compare_int_pending())
		return 0;
	cnt = read_c0_count();
	write_c0_compare(cnt);
	back_to_back_c0_hazard();
	while (read_c0_count() < (cnt + COMPARE_INT_SEEN_TICKS))
		if (!c0_compare_int_pending())
			break;
	if (c0_compare_int_pending())
		return 0;

	/*
                                            
  */
	return 1;
}