1 files changed, 147 insertions, 0 deletions
diff --git a/usr/src/uts/sun4u/sys/cpudrv_mach.h b/usr/src/uts/sun4u/sys/cpudrv_mach.h
new file mode 100644
index 0000000000..cc1536579d
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+++ b/usr/src/uts/sun4u/sys/cpudrv_mach.h
@@ -0,0 +1,147 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_CPUDRV_MACH_H
+#define	_SYS_CPUDRV_MACH_H
+
+#include <sys/cpu_module.h>
+#include <sys/cpudrv.h>
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+/*
+ * We currently refuse to power manage if the CPU in not ready to
+ * take cross calls (cross calls fail silently if CPU is not ready
+ * for it).
+ */
+#define	CPUDRV_PM_XCALL_IS_READY(cpuid) (CPU_XCALL_READY(cpuid))
+
+/*
+ * If a failure occurs during attach(), then CPU power management
+ * is disabled.
+ */
+extern boolean_t cpudrv_enabled;
+
+#define	CPUDRV_PM_DISABLE() (cpudrv_enabled = B_FALSE)
+
+#define	CPUDRV_PM_DISABLED() (!cpudrv_enabled)
+
+#define	CPUDRV_PM_POWER_ENABLED(cpudsp) cpudrv_pm_enabled()
+
+/*
+ * Currently, there is no governor on sun4u,
+ */
+#define	CPUDRV_PM_RESET_GOVERNOR_THREAD(cpupm)
+
+/*
+ * Currently, there is no need for a handler on sun4u.
+ */
+#define	CPUDRV_PM_INSTALL_MAX_CHANGE_HANDLER(cpudsp, dip)
+
+/*
+ * There is no notion of changing topspeed on sun4u.
+ */
+#define	CPUDRV_PM_REDEFINE_TOPSPEED(dip)
+
+/*
+ * There are no PPM callbacks for sun4u.
+ */
+#define	CPUDRV_PM_SET_PPM_CALLBACKS()
+
+/*
+ * clock-divisors property tells the supported speeds
+ * as divisors of the normal speed. Divisors are in increasing
+ * order starting with 1 (for normal speed). For example, a
+ * property value of "1, 2, 32" represents full, 1/2 and 1/32
+ * speeds.
+ */
+#define	CPUDRV_PM_GET_SPEEDS(cpudsp, speeds, nspeeds) { \
+	if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, cpudsp->dip, \
+	    DDI_PROP_DONTPASS, "clock-divisors", &speeds, \
+	    &nspeeds) != DDI_PROP_SUCCESS) { \
+		DPRINTF(D_PM_INIT, ("cpudrv_pm_init: instance %d: " \
+		    "clock-divisors property not defined\n", \
+				    ddi_get_instance(cpudsp->dip))); \
+		return (DDI_FAILURE); \
+	} \
+}
+#define	CPUDRV_PM_FREE_SPEEDS(speeds, unused) ddi_prop_free(speeds);
+
+/*
+ * Convert speed to Hz.
+ */
+#define	CPUDRV_PM_SPEED_HZ(mhz, divisor) (((uint64_t)mhz * 1000000) / divisor)
+
+/*
+ * Compute the idle cnt percentage for a given speed.
+ */
+#define	CPUDRV_PM_IDLE_CNT_PERCENT(hwm, speeds, i) \
+	(100 - ((100 - hwm) * speeds[i]))
+
+/*
+ * Compute the user cnt percentage for a given speed.
+ */
+#define	CPUDRV_PM_USER_CNT_PERCENT(hwm, speeds, i) \
+	((hwm * speeds[i - 1]) / speeds[i])
+
+/*
+ * pm-components property defintions for sun4u.
+ *
+ * Fully constructed pm-components property should be an array of
+ * strings that look something like:
+ *
+ * pmc[0] = "NAME=CPU Speed"
+ * pmc[1] = "1=1/32 of Normal"
+ * pmc[2] = "2=1/2 of Normal"
+ * pmc[3] = "3=Normal"
+ *
+ * The amount of memory needed for each string is:
+ *      digits for power level + '=' + '1/' + digits for speed +
+ *      description text + '\0'
+ */
+#define	CPUDRV_PM_COMP_NORMAL "Normal"
+#define	CPUDRV_PM_COMP_OTHER " of Normal"
+#define	CPUDRV_PM_COMP_SIZE() \
+	(CPUDRV_PM_COMP_MAX_DIG + 1 + 2 + CPUDRV_PM_COMP_MAX_DIG + \
+	    sizeof (CPUDRV_PM_COMP_OTHER) + 1);
+#define	CPUDRV_PM_COMP_SPEED(cpupm, cur_spd) \
+	((cur_spd == cpupm->head_spd) ? cur_spd->pm_level : cur_spd->speed)
+#define	CPUDRV_PM_COMP_SPRINT(pmc, cpupm, cur_spd, comp_spd) { \
+	if (cur_spd == cpupm->head_spd) \
+		(void) sprintf(pmc, "%d=%s", comp_spd, CPUDRV_PM_COMP_NORMAL);\
+	else \
+		(void) sprintf(pmc, "%d=1/%d%s", cur_spd->pm_level, \
+		    comp_spd, CPUDRV_PM_COMP_OTHER); \
+}
+
+extern boolean_t cpudrv_pm_enabled(void);
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif /* _SYS_CPUDRV_MACH_H */