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/*
* 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 2009 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_XCALL_IS_READY(cpuid) (CPU_XCALL_READY(cpuid))
/*
* Currently, there is no governor on sun4u,
*/
#define CPUDRV_RESET_GOVERNOR_THREAD(cpupm)
/*
* Currently, there is no need for a handler on sun4u.
*/
#define CPUDRV_INSTALL_MAX_CHANGE_HANDLER(cpuid)
/*
* Topspeed is always the head speed.
*/
#define CPUDRV_TOPSPEED(cpupm) (cpupm)->head_spd
/*
* There is no notion of changing topspeed on sun4u.
*/
#define CPUDRV_REDEFINE_TOPSPEED(dip)
/*
* There are no PPM callbacks for sun4u.
*/
#define CPUDRV_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_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) { \
nspeeds = 0; \
DPRINTF(D_PM_INIT, ("cpudrv_init: instance %d: " \
"clock-divisors property not defined\n", \
ddi_get_instance(cpudsp->dip))); \
} \
}
#define CPUDRV_FREE_SPEEDS(speeds, nspeeds) { \
if (nspeeds > 0) \
ddi_prop_free(speeds); \
}
/*
* Convert speed to Hz.
*/
#define CPUDRV_SPEED_HZ(mhz, divisor) (((uint64_t)mhz * 1000000) / divisor)
/*
* Compute the idle cnt percentage for a given speed.
*/
#define CPUDRV_IDLE_CNT_PERCENT(hwm, speeds, i) \
(100 - ((100 - hwm) * speeds[i]))
/*
* Compute the user cnt percentage for a given speed.
*/
#define CPUDRV_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_COMP_NORMAL "Normal"
#define CPUDRV_COMP_OTHER " of Normal"
#define CPUDRV_COMP_SIZE() \
(CPUDRV_COMP_MAX_DIG + 1 + 2 + CPUDRV_COMP_MAX_DIG + \
sizeof (CPUDRV_COMP_OTHER) + 1);
#define CPUDRV_COMP_SPEED(cpupm, cur_spd) \
((cur_spd == cpupm->head_spd) ? cur_spd->pm_level : cur_spd->speed)
#define CPUDRV_COMP_SPRINT(pmc, cpupm, cur_spd, comp_spd) { \
if (cur_spd == cpupm->head_spd) \
(void) sprintf(pmc, "%d=%s", comp_spd, CPUDRV_COMP_NORMAL);\
else \
(void) sprintf(pmc, "%d=1/%d%s", cur_spd->pm_level, \
comp_spd, CPUDRV_COMP_OTHER); \
}
#ifdef __cplusplus
}
#endif
#endif /* _SYS_CPUDRV_MACH_H */
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