Exemple #1
0
/*
 * Initialize the CA subsystem if it hasn't been done already
 */
int
acpica_init()
{
	extern void acpica_find_ioapics(void);
	ACPI_STATUS status;

	/*
	 * Make sure user options are processed,
	 * then fail to initialize if ACPI CA has been
	 * disabled
	 */
	acpica_process_user_options();
	if (!acpica_enable)
		return (AE_ERROR);

	mutex_enter(&acpica_module_lock);
	if (acpica_init_state == ACPICA_INITIALIZED) {
		mutex_exit(&acpica_module_lock);
		return (AE_OK);
	}

	if (ACPI_FAILURE(status = AcpiLoadTables()))
		goto error;

	if (ACPI_FAILURE(status = acpica_install_handlers()))
		goto error;

	/*
	 * Create ACPI-to-devinfo mapping now so _INI and _STA
	 * methods can access PCI config space when needed
	 */
	scan_d2a_map();

	if (ACPI_FAILURE(status = AcpiEnableSubsystem(acpi_init_level)))
		goto error;

	/* do after AcpiEnableSubsystem() so GPEs are initialized */
	acpica_ec_init();	/* initialize EC if present */

	/* This runs all device _STA and _INI methods. */
	if (ACPI_FAILURE(status = AcpiInitializeObjects(0)))
		goto error;

	acpica_init_state = ACPICA_INITIALIZED;

	/*
	 * [ACPI, sec. 4.4.1.1]
	 * As of ACPICA version 20101217 (December 2010), the _PRW methods
	 * (Power Resources for Wake) are no longer automatically executed
	 * as part of the ACPICA initialization.  The OS must do this.
	 */
	(void) AcpiWalkNamespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
	    UINT32_MAX, acpica_init_PRW, NULL, NULL, NULL);
	(void) AcpiUpdateAllGpes();

	/*
	 * If we are running on the Xen hypervisor as dom0 we need to
	 * find the ioapics so we can prevent ACPI from trying to
	 * access them.
	 */
	if (get_hwenv() == HW_XEN_PV && is_controldom())
		acpica_find_ioapics();
	acpica_init_kstats();
error:
	if (acpica_init_state != ACPICA_INITIALIZED) {
		cmn_err(CE_NOTE, "!failed to initialize ACPI services");
	}

	/*
	 * Set acpi-status to 13 if acpica has been initialized successfully.
	 * This indicates that acpica is up and running.  This variable name
	 * and value were chosen in order to remain compatible with acpi_intp.
	 */
	e_ddi_prop_update_int(DDI_DEV_T_NONE, ddi_root_node(), "acpi-status",
	    (ACPI_SUCCESS(status)) ? (ACPI_BOOT_INIT | ACPI_BOOT_ENABLE |
	    ACPI_BOOT_BOOTCONF) : 0);

	/* Mark acpica subsystem as fully initialized. */
	if (ACPI_SUCCESS(status) &&
	    acpi_init_level == ACPI_FULL_INITIALIZATION) {
		acpica_set_core_feature(ACPI_FEATURE_FULL_INIT);
	}

	mutex_exit(&acpica_module_lock);
	return (status);
}
static void
synth_amd_info(uint_t family, uint_t model, uint_t step,
    uint32_t *skt_p, uint32_t *chiprev_p, const char **chiprevstr_p)
{
	const struct amd_rev_mapent *rmp;
	int found = 0;
	int i;

	if (family < 0xf)
		return;

	for (i = 0, rmp = amd_revmap; i < sizeof (amd_revmap) / sizeof (*rmp);
	    i++, rmp++) {
		if (family == rmp->rm_family &&
		    model >= rmp->rm_modello && model <= rmp->rm_modelhi &&
		    step >= rmp->rm_steplo && step <= rmp->rm_stephi) {
			found = 1;
			break;
		}
	}

	if (!found)
		return;

	if (chiprev_p != NULL)
		*chiprev_p = rmp->rm_chiprev;
	if (chiprevstr_p != NULL)
		*chiprevstr_p = rmp->rm_chiprevstr;

	if (skt_p != NULL) {
		int platform;

#ifdef __xpv
		/* PV guest */
		if (!is_controldom()) {
			*skt_p = X86_SOCKET_UNKNOWN;
			return;
		}
#endif
		platform = get_hwenv();

		if ((platform == HW_XEN_HVM) || (platform == HW_VMWARE)) {
			*skt_p = X86_SOCKET_UNKNOWN;
		} else if (family == 0xf) {
			*skt_p = amd_skts[rmp->rm_sktidx][model & 0x3];
		} else {
			/*
			 * Starting with family 10h, socket type is stored in
			 * CPUID Fn8000_0001_EBX
			 */
			struct cpuid_regs cp;
			int idx;

			cp.cp_eax = 0x80000001;
			(void) __cpuid_insn(&cp);

			/* PkgType bits */
			idx = BITX(cp.cp_ebx, 31, 28);

			if (idx > 7) {
				/* Reserved bits */
				*skt_p = X86_SOCKET_UNKNOWN;
			} else if (family == 0x10 &&
			    amd_skts[rmp->rm_sktidx][idx] ==
			    X86_SOCKET_AM) {
				/*
				 * Look at Ddr3Mode bit of DRAM Configuration
				 * High Register to decide whether this is
				 * AM2r2 (aka AM2+) or AM3.
				 */
				uint32_t val;

				val = pci_getl_func(0, 24, 2, 0x94);
				if (BITX(val, 8, 8))
					*skt_p = X86_SOCKET_AM3;
				else
					*skt_p = X86_SOCKET_AM2R2;
			} else {
				*skt_p = amd_skts[rmp->rm_sktidx][idx];
			}
		}
	}
}