include/asm/processor.h

#ifndef __ASM_PPC_PROCESSOR_H
#define __ASM_PPC_PROCESSOR_H

/* Bit encodings for Machine State Register (MSR) */
#define MSR_POW		(1<<18)		/* Enable Power Management */
#define MSR_TGPR	(1<<17)		/* TLB Update registers in use */
#define MSR_ILE		(1<<16)		/* Interrupt Little-Endian enable */
#define MSR_EE		(1<<15)		/* External Interrupt enable */
#define MSR_PR		(1<<14)		/* Supervisor/User privilege */
#define MSR_FP		(1<<13)		/* Floating Point enable */
#define MSR_ME		(1<<12)		/* Machine Check enable */
#define MSR_FE0		(1<<11)		/* Floating Exception mode 0 */
#define MSR_SE		(1<<10)		/* Single Step */
#define MSR_BE		(1<<9)		/* Branch Trace */
#define MSR_FE1		(1<<8)		/* Floating Exception mode 1 */
#define MSR_IP		(1<<6)		/* Exception prefix 0x000/0xFFF */
#define MSR_IR		(1<<5)		/* Instruction MMU enable */
#define MSR_DR		(1<<4)		/* Data MMU enable */
#define MSR_RI		(1<<1)		/* Recoverable Exception */
#define MSR_LE		(1<<0)		/* Little-Endian enable */

/* Bit encodings for Hardware Implementation Register (HID0)
   on PowerPC 603, 604, etc. processors (not 601). */
#define HID0_EMCP	(1<<31)		/* Enable Machine Check pin */
#define HID0_EBA	(1<<29)		/* Enable Bus Address Parity */
#define HID0_EBD	(1<<28)		/* Enable Bus Data Parity */
#define HID0_SBCLK	(1<<27)
#define HID0_EICE	(1<<26)
#define HID0_ECLK	(1<<25)
#define HID0_PAR	(1<<24)
#define HID0_DOZE	(1<<23)
#define HID0_NAP	(1<<22)
#define HID0_SLEEP	(1<<21)
#define HID0_DPM	(1<<20)
#define HID0_ICE	(1<<15)		/* Instruction Cache Enable */
#define HID0_DCE	(1<<14)		/* Data Cache Enable */
#define HID0_ILOCK	(1<<13)		/* Instruction Cache Lock */
#define HID0_DLOCK	(1<<12)		/* Data Cache Lock */
#define HID0_ICFI	(1<<11)		/* Instruction Cache Flash Invalidate */
#define HID0_DCI	(1<<10)		/* Data Cache Invalidate */
#define HID0_SPD	(1<<9)		/* Speculative disable */
#define HID0_SIED	(1<<7)		/* Serial Instruction Execution [Disable] */
#define HID0_BHTE	(1<<2)		/* Branch History Table Enable */
#define HID0_BTCD	(1<<1)		/* Branch target cache disable */

/* fpscr settings */
#define FPSCR_FX        (1<<31)
#define FPSCR_FEX       (1<<30)

#define _GLOBAL(n)\
	.globl n;\
n:

#define	TBRU	269	/* Time base Upper/Lower (Reading) */
#define	TBRL	268
#define TBWU	284	/* Time base Upper/Lower (Writing) */
#define TBWL	285
#define	XER	1
#define LR	8
#define CTR	9
#define HID0	1008	/* Hardware Implementation */
#define PVR	287	/* Processor Version */
#define IBAT0U	528	/* Instruction BAT #0 Upper/Lower */
#define IBAT0L	529
#define IBAT1U	530	/* Instruction BAT #1 Upper/Lower */
#define IBAT1L	531
#define IBAT2U	532	/* Instruction BAT #2 Upper/Lower */
#define IBAT2L	533
#define IBAT3U	534	/* Instruction BAT #3 Upper/Lower */
#define IBAT3L	535
#define DBAT0U	536	/* Data BAT #0 Upper/Lower */
#define DBAT0L	537
#define DBAT1U	538	/* Data BAT #1 Upper/Lower */
#define DBAT1L	539
#define DBAT2U	540	/* Data BAT #2 Upper/Lower */
#define DBAT2L	541
#define DBAT3U	542	/* Data BAT #3 Upper/Lower */
#define DBAT3L	543
#define DMISS	976	/* TLB Lookup/Refresh registers */
#define DCMP	977
#define HASH1	978
#define HASH2	979
#define IMISS	980
#define ICMP	981
#define RPA	982
#define SDR1	25	/* MMU hash base register */
#define DAR	19	/* Data Address Register */
#define SPR0	272	/* Supervisor Private Registers */
#define SPRG0   272
#define SPR1	273
#define SPRG1   273
#define SPR2	274
#define SPRG2   274
#define SPR3	275
#define SPRG3   275
#define DSISR	18
#define SRR0	26	/* Saved Registers (exception) */
#define SRR1	27
#define IABR	1010	/* Instruction Address Breakpoint */
#define DEC	22	/* Decrementer */
#define EAR	282	/* External Address Register */
#define L2CR	1017    /* PPC 750 L2 control register */

#define THRM1	1020
#define THRM2	1021
#define THRM3	1022
#define THRM1_TIN 0x1
#define THRM1_TIV 0x2
#define THRM1_THRES (0x7f<<2)
#define THRM1_TID (1<<29)
#define THRM1_TIE (1<<30)
#define THRM1_V   (1<<31)
#define THRM3_E   (1<<31)

/* Segment Registers */
#define SR0	0
#define SR1	1
#define SR2	2
#define SR3	3
#define SR4	4
#define SR5	5
#define SR6	6
#define SR7	7
#define SR8	8
#define SR9	9
#define SR10	10
#define SR11	11
#define SR12	12
#define SR13	13
#define SR14	14
#define SR15	15

#ifndef __ASSEMBLY__
static __inline__ unsigned long mfmsr(void)
{
	unsigned long msr;
	__asm__ __volatile__("mfmsr %0" : "=r" (msr));
	return msr;
}
#endif
  
#endif /* __ASM_PPC_PROCESSOR_H */