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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 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_CPUDRV_PLAT_H
#define _SYS_CPUDRV_PLAT_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/cpupm.h>
#include <sys/cpu_acpi.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).
*/
extern ulong_t cpu_ready_set;
#define CPUDRV_PM_XCALL_IS_READY(cpuid) CPU_IN_SET(cpu_ready_set, (cpuid))
/*
* An error attaching any of the devices results in disabling
* CPU power management.
*/
#define CPUDRV_PM_DISABLE() cpupm_enable(B_FALSE)
/*
* We're about to exit the _PPC thread so reset tag.
*/
#define CPUDRV_PM_RESET_THROTTLE_THREAD(cpupm) { \
if (curthread == cpupm->pm_throttle_thread) \
cpupm->pm_throttle_thread = NULL; \
}
/*
* Install a _PPC change notification handler.
*/
#define CPUDRV_PM_INSTALL_TOPSPEED_CHANGE_HANDLER(cpudsp, dip) \
cpu_acpi_install_ppc_handler(cpudsp->acpi_handle, \
cpudrv_pm_ppc_notify_handler, dip);
/*
* Redefine the topspeed.
*/
#define CPUDRV_PM_REDEFINE_TOPSPEED(dip) cpudrv_pm_redefine_topspeed(dip)
/*
* Set callbacks so that PPM can callback into CPUDRV
*/
#define CPUDRV_PM_SET_PPM_CALLBACKS() { \
cpupm_get_topspeed = cpudrv_pm_get_topspeed; \
cpupm_set_topspeed = cpudrv_pm_set_topspeed; \
}
/*
* ACPI provides the supported speeds.
*/
#define CPUDRV_PM_GET_SPEEDS(cpudsp, speeds, nspeeds) \
nspeeds = cpu_acpi_get_speeds(cpudsp->acpi_handle, &speeds);
#define CPUDRV_PM_FREE_SPEEDS(speeds, nspeeds) \
cpu_acpi_free_speeds(speeds, nspeeds);
/*
* Convert speed to Hz.
*/
#define CPUDRV_PM_SPEED_HZ(unused, mhz) ((uint64_t)mhz * 1000000)
/*
* Compute the idle cnt percentage for a given speed.
*/
#define CPUDRV_PM_IDLE_CNT_PERCENT(hwm, speeds, i) \
(100 - (((100 - hwm) * speeds[0]) / speeds[i]))
/*
* Compute the user cnt percentage for a given speed.
*/
#define CPUDRV_PM_USER_CNT_PERCENT(hwm, speeds, i) \
((hwm * speeds[i]) / speeds[i - 1]);
/*
* pm-components property defintions for this platform.
*
* Fully constructed pm-components property should be an array of
* strings that look something like:
*
* pmc[0] = "NAME=CPU Speed"
* pmc[1] = "1=2800MHz"
* pmc[2] = "2=3200MHz"
*
* The amount of memory needed for each string is:
* digits for power level + '=' + digits for freq + 'MHz' + '\0'
*/
#define CPUDRV_PM_COMP_SIZE() \
(CPUDRV_PM_COMP_MAX_DIG + 1 + CPUDRV_PM_COMP_MAX_DIG + 3 + 1);
#define CPUDRV_PM_COMP_SPEED(cpupm, cur_spd) cur_spd->speed;
#define CPUDRV_PM_COMP_SPRINT(pmc, cpupm, cur_spd, comp_spd) \
(void) sprintf(pmc, "%d=%dMHz", cur_spd->pm_level, comp_spd);
extern void cpudrv_pm_set_topspeed(void *, int);
extern int cpudrv_pm_get_topspeed(void *);
extern void cpudrv_pm_redefine_topspeed(void *);
extern void cpudrv_pm_ppc_notify_handler(ACPI_HANDLE, UINT32, void *);
#ifdef __cplusplus
}
#endif
#endif /* _SYS_CPUDRV_PLAT_H */
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