X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/21362eb3e66fd2c787aee132bce100a44d71a99c..4452a7af2eac33dbad800bcc91f2399d62c18f53:/osfmk/i386/pmCPU.h

diff --git a/osfmk/i386/pmCPU.h b/osfmk/i386/pmCPU.h
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+/*
+ * Copyright (c) 2006 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
+#ifdef KERNEL_PRIVATE
+#ifndef _I386_PMCPU_H_
+#define _I386_PMCPU_H_
+
+#include <kern/pms.h>
+
+#ifndef ASSEMBLER
+
+typedef enum { C1, C2, C3, C4, Hlt, C3Res, All, Cnum } pm_Cstate_t;
+typedef struct pmStats {
+	uint64_t	pmNapCnt[Cnum];		/* Total nap calls for states */
+	uint64_t	pmNapTime[Cnum];	/* Total nap time for states */
+	uint64_t	pmNapC2HPET;		/* Total nap time for C2 using HPET for stats */
+	uint64_t	pmNapC4HPET;		/* Total nap time for C4 using HPET for stats */
+	uint64_t	pmNapHPETPops;		/* Number of times we detect HPET popping */
+	uint64_t	pmHPETRupt;		/* Number of HPET interruptions */
+	uint32_t	pmCurC3Res;		/* Current value of the C3 residency timer */
+	uint32_t	pmLastApic;		/* Last value of apic timer */
+	uint32_t	pmNewApic;		/* New value of apic timer */
+	uint64_t	pmHpetTim;		/* Time to next interrupt in HPET ticks */
+	uint64_t	pmHpetCmp;		/* HPET comparator */
+	uint64_t	pmHpetCfg;		/* HPET configuration */
+	uint64_t	pmLSNs;			/* (TEST) Last set nanotime */
+	uint64_t	pmLLHpet;		/* (TEST) Last loaded HPET */
+} pmStats_t;
+
+#define MAX_PSTATES	32			/* architectural limit */
+
+typedef enum { Cn1, Cn2, Cn3, Cn4, Cnmax } Cstate_number_t;
+typedef struct {
+	Cstate_number_t	number;
+	uint32_t	hint;
+} Cstate_hint_t;
+
+
+struct pmData {
+	uint8_t pad[93];
+};
+typedef struct 	pmData pmData_t;
+
+#define pmNapHalt	0x00000010
+#define pmNapC1		0x00000008
+#define pmNapC2		0x00000004
+#define pmNapC3		0x00000002
+#define pmNapC4		0x00000001
+#define pmNapMask	0x000000FF
+
+#define cfgAdr 		0xCF8
+#define cfgDat 		0xCFC
+#define lpcCfg 		(0x80000000 | (0 << 16) | (31 << 11) | (0 << 8))
+
+/*
+ * Dispatch table for functions that get installed when the power
+ * management KEXT loads.
+ */
+typedef struct
+{
+    /*
+     * The following are the stepper table interfaces.
+     */
+    void	(*pmsCPUMachineInit)(void);
+    void	(*pmsCPUInit)(void);
+    void	(*pmsCPUSet)(uint32_t sel);
+    void	(*pmsCPUConf)(void);
+    void	(*pmsCPURun)(uint32_t nstep);
+    uint32_t	(*pmsCPUQuery)(void);
+    uint32_t	(*pmsCPUPackageQuery)(void);
+    void	(*pmsCPUYellowFlag)(void);
+    void	(*pmsCPUGreenFlag)(void);
+    kern_return_t	(*pmsCPULoadVIDTable)(uint16_t *tablep, int nstates);
+    kern_return_t	(*pmsCPUSetPStateLimit)(uint32_t limit);
+
+    /*
+     * The following are the 'C' State interfaces.
+     */
+    void	(*cstateInit)(void);
+    void	(*cstateMachineIdle)(uint32_t napCtl);
+    kern_return_t	(*cstateTableSet)(Cstate_hint_t *tablep, unsigned int nstates);
+    uint32_t	(*cstateNapPolicy)(uint32_t forcenap, uint32_t napCtl);
+} pmDispatch_t;
+
+typedef struct {
+    uint32_t		PState;
+    uint32_t		PLimit;
+    uint16_t		VIDTable[MAX_PSTATES];
+    uint32_t		VIDTableCount;
+    Cstate_hint_t	CStates[Cnmax];
+    uint32_t		CStatesCount;
+} pmInitState_t;
+
+typedef struct {
+    void	(*Park)(void);
+    void	(*Run)(uint32_t nstep);
+    void	(*RunLocal)(uint32_t nstep);
+    void	(*SetStep)(uint32_t nstep, int dir);
+    void	(*NapPolicy)(void);
+    kern_return_t	(*Build)(pmsDef *pd, uint32_t pdsize, pmsSetFunc_t *functab, uint32_t platformData, pmsQueryFunc_t queryFunc);
+    pmStats_t	*(*Stats)(void);
+    pmsd	*(*StepperData)(void);
+    uint64_t	*(*HPETAddr)(void);
+    pmInitState_t	*InitState;
+    void	(*resetPop)(void);
+} pmCallBacks_t;
+
+extern pmDispatch_t	*pmDispatch;
+
+extern uint32_t		maxBusDelay;
+extern uint32_t		C4C2SnoopDelay;
+extern uint32_t		forcenap;
+
+void power_management_init(void);
+void machine_nap_policy(void);
+kern_return_t Cstate_table_set(Cstate_hint_t *tablep, unsigned int nstates);
+void machine_idle_cstate(void);
+void pmRegister(pmDispatch_t *cpuFuncs, pmCallBacks_t *callbacks);
+void pmUnRegister(pmDispatch_t *cpuFuncs);
+
+#endif /* ASSEMBLER */
+#endif /* _I386_PMCPU_H_ */
+#endif /* KERNEL_PRIVATE */