C++ (Cpp) amd_fam14h_get_pci_info示例

示例#1

文件： amd_fam14h_idle.c 项目： MiniBlu/cm11_kernel_htc_msm8974a3ul

static int amd_fam14h_init(cstate_t *state, unsigned int cpu)
{
	int enable_bit, pci_offset, ret;
	uint32_t val;

	ret = amd_fam14h_get_pci_info(state, &pci_offset, &enable_bit, cpu);
	if (ret)
		return ret;

	
	if (state->id == NBP1) {
		val = pci_read_long(amd_fam14h_pci_dev, pci_offset);
		val |= 1 << enable_bit;
		val = pci_write_long(amd_fam14h_pci_dev, pci_offset, val);
		return ret;
	}

	
	val = pci_read_long(amd_fam14h_pci_dev, PCI_MONITOR_ENABLE_REG);
	dprint("Init %s: read at offset: 0x%x val: %u\n", state->name,
	       PCI_MONITOR_ENABLE_REG, (unsigned int) val);
	val |= 1 << enable_bit;
	pci_write_long(amd_fam14h_pci_dev, PCI_MONITOR_ENABLE_REG, val);

	dprint("Init %s: offset: 0x%x enable_bit: %d - val: %u (%u)\n",
	       state->name, PCI_MONITOR_ENABLE_REG, enable_bit,
	       (unsigned int) val, cpu);

	
	pci_write_long(amd_fam14h_pci_dev, pci_offset, 0);
	previous_count[state->id][cpu] = 0;

	return 0;
}

示例#2

文件： amd_fam14h_idle.c 项目： MiniBlu/cm11_kernel_htc_msm8974a3ul

static int amd_fam14h_disable(cstate_t *state, unsigned int cpu)
{
	int enable_bit, pci_offset, ret;
	uint32_t val;

	ret = amd_fam14h_get_pci_info(state, &pci_offset, &enable_bit, cpu);
	if (ret)
		return ret;

	val = pci_read_long(amd_fam14h_pci_dev, pci_offset);
	dprint("%s: offset: 0x%x %u\n", state->name, pci_offset, val);
	if (state->id == NBP1) {
		
		nbp1_entered = (val & (1 << PCI_NBP1_ACTIVE_BIT)) |
			(val & (1 << PCI_NBP1_ENTERED_BIT));

		dprint("NBP1 was %sentered - 0x%x - enable_bit: "
		       "%d - pci_offset: 0x%x\n",
		       nbp1_entered ? "" : "not ",
		       val, enable_bit, pci_offset);
		return ret;
	}
	current_count[state->id][cpu] = val;

	dprint("%s: Current -  %llu (%u)\n", state->name,
	       current_count[state->id][cpu], cpu);
	dprint("%s: Previous - %llu (%u)\n", state->name,
	       previous_count[state->id][cpu], cpu);

	val = pci_read_long(amd_fam14h_pci_dev, PCI_MONITOR_ENABLE_REG);
	val &= ~(1 << enable_bit);
	pci_write_long(amd_fam14h_pci_dev, PCI_MONITOR_ENABLE_REG, val);

	return 0;
}

示例#3

文件： amd_fam14h_idle.c 项目： mikuhatsune001/linux2.6.32

static int amd_fam14h_init(cstate_t *state, unsigned int cpu)
{
	int enable_bit, pci_offset, ret;
	uint32_t val;

	ret = amd_fam14h_get_pci_info(state, &pci_offset, &enable_bit, cpu);
	if (ret)
		return ret;

	/* NBP1 needs extra treating -> write 1 to D18F6x98 bit 1 for init */
	if (state->id == NBP1) {
		val = pci_read_long(amd_fam14h_pci_dev, pci_offset);
		val |= 1 << enable_bit;
		val = pci_write_long(amd_fam14h_pci_dev, pci_offset, val);
		return ret;
	}

	/* Enable monitor */
	val = pci_read_long(amd_fam14h_pci_dev, PCI_MONITOR_ENABLE_REG);
	dprint("Init %s: read at offset: 0x%x val: %u\n", state->name,
	       PCI_MONITOR_ENABLE_REG, (unsigned int) val);
	val |= 1 << enable_bit;
	pci_write_long(amd_fam14h_pci_dev, PCI_MONITOR_ENABLE_REG, val);

	dprint("Init %s: offset: 0x%x enable_bit: %d - val: %u (%u)\n",
	       state->name, PCI_MONITOR_ENABLE_REG, enable_bit,
	       (unsigned int) val, cpu);

	/* Set counter to zero */
	pci_write_long(amd_fam14h_pci_dev, pci_offset, 0);
	previous_count[state->id][cpu] = 0;

	return 0;
}