xref: /illumos-gate/usr/src/uts/i86pc/sys/cpudrv_mach.h (revision 444f66e7)
17f606aceSMark Haywood /*
27f606aceSMark Haywood  * CDDL HEADER START
37f606aceSMark Haywood  *
47f606aceSMark Haywood  * The contents of this file are subject to the terms of the
57f606aceSMark Haywood  * Common Development and Distribution License (the "License").
67f606aceSMark Haywood  * You may not use this file except in compliance with the License.
77f606aceSMark Haywood  *
87f606aceSMark Haywood  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97f606aceSMark Haywood  * or http://www.opensolaris.org/os/licensing.
107f606aceSMark Haywood  * See the License for the specific language governing permissions
117f606aceSMark Haywood  * and limitations under the License.
127f606aceSMark Haywood  *
137f606aceSMark Haywood  * When distributing Covered Code, include this CDDL HEADER in each
147f606aceSMark Haywood  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157f606aceSMark Haywood  * If applicable, add the following below this CDDL HEADER, with the
167f606aceSMark Haywood  * fields enclosed by brackets "[]" replaced with your own identifying
177f606aceSMark Haywood  * information: Portions Copyright [yyyy] [name of copyright owner]
187f606aceSMark Haywood  *
197f606aceSMark Haywood  * CDDL HEADER END
207f606aceSMark Haywood  */
217f606aceSMark Haywood /*
220e751525SEric Saxe  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
237f606aceSMark Haywood  * Use is subject to license terms.
247f606aceSMark Haywood  */
257f606aceSMark Haywood 
267f606aceSMark Haywood #ifndef _SYS_CPUDRV_MACH_H
277f606aceSMark Haywood #define	_SYS_CPUDRV_MACH_H
287f606aceSMark Haywood 
297f606aceSMark Haywood #include <sys/cpuvar.h>
307f606aceSMark Haywood #include <sys/cpupm.h>
317f606aceSMark Haywood #include <sys/cpu_acpi.h>
327f606aceSMark Haywood #include <sys/cpudrv.h>
337f606aceSMark Haywood #include <sys/ksynch.h>
347f606aceSMark Haywood 
357f606aceSMark Haywood #ifdef  __cplusplus
367f606aceSMark Haywood extern "C" {
377f606aceSMark Haywood #endif
387f606aceSMark Haywood 
397f606aceSMark Haywood /*
407f606aceSMark Haywood  * We currently refuse to power manage if the CPU in not ready to
417f606aceSMark Haywood  * take cross calls (cross calls fail silently if CPU is not ready
427f606aceSMark Haywood  * for it).
437f606aceSMark Haywood  */
447f606aceSMark Haywood extern cpuset_t cpu_ready_set;
450e751525SEric Saxe #define	CPUDRV_XCALL_IS_READY(cpuid) CPU_IN_SET(cpu_ready_set, (cpuid))
467f606aceSMark Haywood 
477f606aceSMark Haywood /*
487f606aceSMark Haywood  * We're about to exit the _PPC thread so reset tag.
497f606aceSMark Haywood  */
500e751525SEric Saxe #define	CPUDRV_RESET_GOVERNOR_THREAD(cpupm) { \
517f606aceSMark Haywood 	if (curthread == cpupm->pm_governor_thread) \
527f606aceSMark Haywood 		cpupm->pm_governor_thread = NULL; \
537f606aceSMark Haywood }
547f606aceSMark Haywood 
5517353130SMark Haywood /*
5617353130SMark Haywood  * The current top speed as defined by the _PPC.
5717353130SMark Haywood  */
580e751525SEric Saxe #define	CPUDRV_TOPSPEED(cpupm)	(cpupm)->top_spd
5917353130SMark Haywood 
607f606aceSMark Haywood /*
617f606aceSMark Haywood  * Install a _PPC/_TPC change notification handler.
627f606aceSMark Haywood  */
630e751525SEric Saxe #define	CPUDRV_INSTALL_MAX_CHANGE_HANDLER(cpudsp) \
640e751525SEric Saxe 	cpudrv_install_notify_handler(cpudsp);
657f606aceSMark Haywood 
66*444f66e7SMark Haywood /*
67*444f66e7SMark Haywood  * Uninstall _PPC/_TPC change notification handler.
68*444f66e7SMark Haywood  */
69*444f66e7SMark Haywood #define	CPUDRV_UNINSTALL_MAX_CHANGE_HANDLER(cpudsp) \
70*444f66e7SMark Haywood 	cpudrv_uninstall_notify_handler(cpudsp);
71*444f66e7SMark Haywood 
727f606aceSMark Haywood /*
737f606aceSMark Haywood  * Redefine the topspeed.
747f606aceSMark Haywood  */
750e751525SEric Saxe #define	CPUDRV_REDEFINE_TOPSPEED(dip) cpudrv_redefine_topspeed(dip)
767f606aceSMark Haywood 
777f606aceSMark Haywood /*
787f606aceSMark Haywood  * Set callbacks so that PPM can callback into CPUDRV
797f606aceSMark Haywood  */
800e751525SEric Saxe #define	CPUDRV_SET_PPM_CALLBACKS() { \
810e751525SEric Saxe 	cpupm_get_topspeed_callb = cpudrv_get_topspeed; \
820e751525SEric Saxe 	cpupm_set_topspeed_callb = cpudrv_set_topspeed; \
837f606aceSMark Haywood }
847f606aceSMark Haywood 
857f606aceSMark Haywood /*
867f606aceSMark Haywood  * ACPI provides the supported speeds.
877f606aceSMark Haywood  */
880e751525SEric Saxe #define	CPUDRV_GET_SPEEDS(cpudsp, speeds, nspeeds) \
890e751525SEric Saxe 	nspeeds = cpudrv_get_speeds(cpudsp, &speeds);
900e751525SEric Saxe #define	CPUDRV_FREE_SPEEDS(speeds, nspeeds) \
910e751525SEric Saxe 	cpudrv_free_speeds(speeds, nspeeds);
927f606aceSMark Haywood 
937f606aceSMark Haywood /*
940e751525SEric Saxe  * ACPI provides the supported C-states.
957f606aceSMark Haywood  */
960e751525SEric Saxe #define	CPUDRV_GET_MAX_CSTATES(handle) \
970e751525SEric Saxe 	cpu_acpi_get_max_cstates(handle);
987f606aceSMark Haywood 
997f606aceSMark Haywood /*
1007f606aceSMark Haywood  * Compute the idle cnt percentage for a given speed.
1017f606aceSMark Haywood  */
1020e751525SEric Saxe #define	CPUDRV_IDLE_CNT_PERCENT(hwm, speeds, i) \
1037f606aceSMark Haywood 	(100 - (((100 - hwm) * speeds[0]) / speeds[i]))
1047f606aceSMark Haywood 
1057f606aceSMark Haywood /*
1067f606aceSMark Haywood  * Compute the user cnt percentage for a given speed.
1077f606aceSMark Haywood  */
1080e751525SEric Saxe #define	CPUDRV_USER_CNT_PERCENT(hwm, speeds, i) \
1097f606aceSMark Haywood 	((hwm * speeds[i]) / speeds[i - 1]);
1107f606aceSMark Haywood 
1117f606aceSMark Haywood /*
1127f606aceSMark Haywood  * pm-components property defintions for this machine type.
1137f606aceSMark Haywood  *
1147f606aceSMark Haywood  * Fully constructed pm-components property should be an array of
1157f606aceSMark Haywood  * strings that look something like:
1167f606aceSMark Haywood  *
1177f606aceSMark Haywood  * pmc[0] = "NAME=CPU Speed"
1187f606aceSMark Haywood  * pmc[1] = "1=2800MHz"
1197f606aceSMark Haywood  * pmc[2] = "2=3200MHz"
1207f606aceSMark Haywood  *
1217f606aceSMark Haywood  * The amount of memory needed for each string is:
1227f606aceSMark Haywood  * 	digits for power level + '=' +  digits for freq + 'MHz' + '\0'
1237f606aceSMark Haywood  */
1240e751525SEric Saxe #define	CPUDRV_COMP_SIZE() \
1250e751525SEric Saxe 	(CPUDRV_COMP_MAX_DIG + 1 + CPUDRV_COMP_MAX_DIG + 3 + 1);
1260e751525SEric Saxe #define	CPUDRV_COMP_SPEED(cpupm, cur_spd) cur_spd->speed;
1270e751525SEric Saxe #define	CPUDRV_COMP_SPRINT(pmc, cpupm, cur_spd, comp_spd) \
1287f606aceSMark Haywood 	(void) sprintf(pmc, "%d=%dMHz", cur_spd->pm_level, comp_spd);
1297f606aceSMark Haywood 
1300e751525SEric Saxe extern void cpudrv_set_topspeed(void *, int);
1310e751525SEric Saxe extern int cpudrv_get_topspeed(void *);
1320e751525SEric Saxe extern int cpudrv_get_topthrottle(cpu_t *);
1330e751525SEric Saxe extern void cpudrv_manage_throttling(void *);
1340e751525SEric Saxe extern void cpudrv_install_notify_handler(cpudrv_devstate_t *);
135*444f66e7SMark Haywood extern void cpudrv_uninstall_notify_handler(cpudrv_devstate_t *);
1360e751525SEric Saxe extern void cpudrv_redefine_topspeed(void *);
1370e751525SEric Saxe extern uint_t cpudrv_get_speeds(cpudrv_devstate_t *, int **);
1380e751525SEric Saxe extern void cpudrv_free_speeds(int *, uint_t);
1397f606aceSMark Haywood 
1407f606aceSMark Haywood #ifdef  __cplusplus
1417f606aceSMark Haywood }
1427f606aceSMark Haywood #endif
1437f606aceSMark Haywood 
1447f606aceSMark Haywood #endif /* _SYS_CPUDRV_MACH_H */
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