C++ (Cpp) platform_mp_get_core_cnt Examples

Example #1

File: alpine_machdep_mp.c Project: 2asoft/freebsd

void
platform_mp_setmaxid(void)
{

	mp_ncpus = platform_mp_get_core_cnt();
	mp_maxid = mp_ncpus - 1;
}

Example #2

File: alpine_machdep_mp.c Project: 2trill2spill/freebsd

void
alpine_mp_setmaxid(platform_t plat)
{

	mp_ncpus = platform_mp_get_core_cnt();
	mp_maxid = mp_ncpus - 1;
}

Example #3

File: alpine_machdep_mp.c Project: kandycs/freebsd

void
platform_mp_setmaxid(void)
{
	int core_cnt;

	core_cnt = platform_mp_get_core_cnt();
	mp_maxid = core_cnt - 1;
}

Example #4

File: alpine_machdep_mp.c Project: kandycs/freebsd

void
platform_mp_start_ap(void)
{
	uint32_t physaddr;
	vm_offset_t vaddr;
	uint32_t val;
	uint32_t start_mask;
	u_long cpu_resume_base;
	u_long nb_base;
	u_long cpu_resume_size;
	u_long nb_size;
	bus_addr_t cpu_resume_baddr;
	bus_addr_t nb_baddr;
	int a;

	if (alpine_get_cpu_resume_base(&cpu_resume_base, &cpu_resume_size))
		panic("Couldn't resolve cpu_resume_base address\n");

	if (alpine_get_nb_base(&nb_base, &nb_size))
		panic("Couldn't resolve_nb_base address\n");

	/* Proceed with start addresses for additional CPUs */
	if (bus_space_map(fdtbus_bs_tag, al_devmap_pa + cpu_resume_base,
	    cpu_resume_size, 0, &cpu_resume_baddr))
		panic("Couldn't map CPU-resume area");
	if (bus_space_map(fdtbus_bs_tag, al_devmap_pa + nb_base,
	    nb_size, 0, &nb_baddr))
		panic("Couldn't map NB-service area");

	/* Proceed with start addresses for additional CPUs */
	val = bus_space_read_4(fdtbus_bs_tag, cpu_resume_baddr,
	    AL_CPU_RESUME_WATERMARK_REG);
	if (((val & AL_CPU_RESUME_MAGIC_NUM_MASK) != AL_CPU_RESUME_MAGIC_NUM) ||
	    ((val & AL_CPU_RESUME_MIN_VER_MASK) < AL_CPU_RESUME_MIN_VER)) {
		panic("CPU-resume device is not compatible");
	}

	vaddr = (vm_offset_t)mpentry;
	physaddr = pmap_kextract(vaddr);

	for (a = 1; a < platform_mp_get_core_cnt(); a++) {
		/* Power up the core */
		bus_space_write_4(fdtbus_bs_tag, nb_baddr,
		    AL_NB_CONFIG_STATUS_PWR_CTRL(a), 0);
		mb();

		/* Enable resume */
		val = bus_space_read_4(fdtbus_bs_tag, cpu_resume_baddr,
		    AL_CPU_RESUME_PCPU_FLAGS(a));
		val &= ~AL_CPU_RESUME_FLG_PERCPU_DONT_RESUME;
		bus_space_write_4(fdtbus_bs_tag, cpu_resume_baddr,
		    AL_CPU_RESUME_PCPU_FLAGS(a), val);
		mb();

		/* Set resume physical address */
		bus_space_write_4(fdtbus_bs_tag, cpu_resume_baddr,
		    AL_CPU_RESUME_PCPU_RADDR_REG(a), physaddr);
		mb();
	}

	/* Release cores from reset */
	if (bus_space_map(fdtbus_bs_tag, al_devmap_pa + nb_base,
	    nb_size, 0, &nb_baddr))
		panic("Couldn't map NB-service area");

	start_mask = (1 << platform_mp_get_core_cnt()) - 1;

	/* Release cores from reset */
	val = bus_space_read_4(fdtbus_bs_tag, nb_baddr, AL_NB_INIT_CONTROL);
	val |= start_mask;
	bus_space_write_4(fdtbus_bs_tag, nb_baddr, AL_NB_INIT_CONTROL, val);
	dsb();

	bus_space_unmap(fdtbus_bs_tag, nb_baddr, nb_size);
	bus_space_unmap(fdtbus_bs_tag, cpu_resume_baddr, cpu_resume_size);
}

Example #5

File: alpine_machdep_mp.c Project: kandycs/freebsd

int
platform_mp_probe(void)
{
	mp_ncpus = platform_mp_get_core_cnt();
	return (1);
}