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/*
* This file contains some powerpc MSR and registers access definitions.
*
* Copyright (C) 1999 Eric Valette (valette@crf.canon.fr)
* Canon Centre Recherche France.
*
* Added MPC8260 Andy Dachs <a.dachs@sstl.co.uk>
* Surrey Satellite Technology Limited
*
*
* The license and distribution terms for this file may be
* found in found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#ifndef _RTEMS_POWERPC_REGISTERS_H
#define _RTEMS_POWERPC_REGISTERS_H
#ifdef __cplusplus
extern "C" {
#endif
/* 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 */
#define MSR_ MSR_ME|MSR_RI
#define MSR_KERNEL MSR_|MSR_IR|MSR_DR
#define MSR_USER MSR_KERNEL|MSR_PR|MSR_EE
/* 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_TBEN (1<<26) /* 7455:this bit must be set
* and TBEN signal must be asserted
* to enable the time base and
* decrementer.
*/
#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_SIED (1<<7) /* Serial Instruction Execution [Disable] */
#define HID0_BTIC (1<<5) /* Branch Target Instruction Cache [Enable] */
/* S.K. Feng 10/03, added for MPC7455 */
#define HID0_LRSTK (1<<4) /* Link register stack enable (7455) */
#define HID0_FOLD (1<<3) /* Branch folding enable (7455) */
#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 _MACH_prep 1
#define _MACH_Pmac 2 /* pmac or pmac clone (non-chrp) */
#define _MACH_chrp 4 /* chrp machine */
#define _MACH_mbx 8 /* Motorola MBX board */
#define _MACH_apus 16 /* amiga with phase5 powerup */
#define _MACH_fads 32 /* Motorola FADS board */
/* see residual.h for these */
#define _PREP_Motorola 0x01 /* motorola prep */
#define _PREP_Firm 0x02 /* firmworks prep */
#define _PREP_IBM 0x00 /* ibm prep */
#define _PREP_Bull 0x03 /* bull prep */
/* these are arbitrary */
#define _CHRP_Motorola 0x04 /* motorola chrp, the cobra */
#define _CHRP_IBM 0x05 /* IBM chrp, the longtrail and longtrail 2 */
#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 HID1 1009 /* Hardware Implementation */
#define DABR 1013 /* Data Access Breakpoint */
#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 MSSCR0 1014 /* Memory Subsystem Control Register */
#define L2CR 1017 /* PPC 750 and 74xx L2 control register */
#define L2CR_L2E (1<<31) /* enable */
#define L2CR_L2I (1<<21) /* global invalidate */
/* watch out L2IO and L2DO are different between 745x and 7400/7410 */
/* Oddly, the following L2CR bit defintions in 745x
* is different from that of 7400 and 7410.
* Though not used in 7400 and 7410, it is appeded with _745x just
* to be clarified.
*/
#define L2CR_L2IO_745x 0x100000 /* (1<<20) L2 Instruction-Only */
#define L2CR_L2DO_745x 0x10000 /* (1<<16) L2 Data-Only */
#define L2CR_LOCK_745x (L2CR_L2IO_745x|L2CR_L2DO_745x)
#define L2CR_L3OH0 0x00080000 /* 12:L3 output hold 0 */
#define L3CR 1018 /* PPC 7450/7455 L3 control register */
#define L3CR_L3IO_745x 0x400000 /* (1<<22) L3 Instruction-Only */
#define L3CR_L3DO_745x 0x40 /* (1<<6) L3 Data-Only */
#define L3CR_LOCK_745x (L3CR_L3IO_745x|L3CR_L3DO_745x)
#define L3CR_RESERVED 0x0438003a /* Reserved bits in L3CR */
#define L3CR_L3E 0x80000000 /* 0: L3 enable */
#define L3CR_L3PE 0x40000000 /* 1: L3 data parity checking enable */
#define L3CR_L3APE 0x20000000 /* 2: L3 address parity checking enable */
#define L3CR_L3SIZ 0x10000000 /* 3: L3 size (0=1MB, 1=2MB) */
#define L3SIZ_1M 0x00000000
#define L3SIZ_2M 0x10000000
#define L3CR_L3CLKEN 0x08000000 /* 4: Enables the L3_CLK[0:1] signals */
#define L3CR_L3CLK 0x03800000 /* 6-8: L3 clock ratio */
#define L3CLK_60 0x00000000 /* core clock / 6 */
#define L3CLK_20 0x01000000 /* / 2 */
#define L3CLK_25 0x01800000 /* / 2.5 */
#define L3CLK_30 0x02000000 /* / 3 */
#define L3CLK_35 0x02800000 /* / 3.5 */
#define L3CLK_40 0x03000000 /* / 4 */
#define L3CLK_50 0x03800000 /* / 5 */
#define L3CR_L3IO 0x00400000 /* 9: L3 instruction-only mode */
#define L3CR_L3SPO 0x00040000 /* 13: L3 sample point override */
#define L3CR_L3CKSP 0x00030000 /* 14-15: L3 clock sample point */
#define L3CKSP_2 0x00000000 /* 2 clocks */
#define L3CKSP_3 0x00010000 /* 3 clocks */
#define L3CKSP_4 0x00020000 /* 4 clocks */
#define L3CKSP_5 0x00030000 /* 5 clocks */
#define L3CR_L3PSP 0x0000e000 /* 16-18: L3 P-clock sample point */
#define L3PSP_0 0x00000000 /* 0 clocks */
#define L3PSP_1 0x00002000 /* 1 clocks */
#define L3PSP_2 0x00004000 /* 2 clocks */
#define L3PSP_3 0x00006000 /* 3 clocks */
#define L3PSP_4 0x00008000 /* 4 clocks */
#define L3PSP_5 0x0000a000 /* 5 clocks */
#define L3CR_L3REP 0x00001000 /* 19: L3 replacement algorithm (0=default, 1=alternate) */
#define L3CR_L3HWF 0x00000800 /* 20: L3 hardware flush */
#define L3CR_L3I 0x00000400 /* 21: L3 global invaregisters.h.orig
lidate */
#define L3CR_L3RT 0x00000300 /* 22-23: L3 SRAM type */
#define L3RT_MSUG2_DDR 0x00000000 /* MSUG2 DDR SRAM */
#define L3RT_PIPELINE_LATE 0x00000100 /* Pipelined (register-register) synchronous late-write SRAM */
#define L3RT_PB2_SRAM 0x00000300 /* PB2 SRAM */
#define L3CR_L3NIRCA 0x00000080 /* 24: L3 non-integer ratios clock adjustment for the SRAM */
#define L3CR_L3DO 0x00000040 /* 25: L3 data-only mode */
#define L3CR_PMEN 0x00000004 /* 29: Private memory enable */
#define L3CR_PMSIZ 0x00000004 /* 31: Private memory size (0=1MB, 1=2MB) */
#define THRM1 1020
#define THRM2 1021
#define THRM3 1022
#define THRM1_TIN (1<<(31-0))
#define THRM1_TIV (1<<(31-1))
#define THRM1_THRES (0x7f<<(31-8))
#define THRM1_TID (1<<(31-29))
#define THRM1_TIE (1<<(31-30))
#define THRM1_V (1<<(31-31))
#define THRM3_SITV (0x1fff << (31-30))
#define THRM3_E (1<<(31-31))
/* 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
#define _CPU_MSR_GET( _msr_value ) \
do { \
_msr_value = 0; \
asm volatile ("mfmsr %0" : "=&r" ((_msr_value)) : "0" ((_msr_value))); \
} while (0)
#define _CPU_MSR_SET( _msr_value ) \
{ asm volatile ("mtmsr %0" : "=&r" ((_msr_value)) : "0" ((_msr_value))); }
#define _CPU_ISR_Disable( _isr_cookie ) \
{ register unsigned int _disable_mask = MSR_EE; \
_isr_cookie = 0; \
asm volatile ( \
"mfmsr %0; andc %1,%0,%1; mtmsr %1" : \
"=&r" ((_isr_cookie)), "=&r" ((_disable_mask)) : \
"0" ((_isr_cookie)), "1" ((_disable_mask)) \
); \
}
/*
* Enable interrupts to the previous level (returned by _CPU_ISR_Disable).
* This indicates the end of an RTEMS critical section. The parameter
* _isr_cookie is not modified.
*/
#define _CPU_ISR_Enable( _isr_cookie ) \
{ \
asm volatile ( "mtmsr %0" : \
"=r" ((_isr_cookie)) : \
"0" ((_isr_cookie))); \
}
/*
* This temporarily restores the interrupt to _isr_cookie before immediately
* disabling them again. This is used to divide long RTEMS critical
* sections into two or more parts. The parameter _isr_cookie is not
* modified.
*
* NOTE: The version being used is not very optimized but it does
* not trip a problem in gcc where the disable mask does not
* get loaded. Check this for future (post 10/97 gcc versions.
*/
#define _CPU_ISR_Flash( _isr_cookie ) \
{ register unsigned int _disable_mask = MSR_EE; \
asm volatile ( \
"mtmsr %0; andc %1,%0,%1; mtmsr %1" : \
"=r" ((_isr_cookie)), "=r" ((_disable_mask)) : \
"0" ((_isr_cookie)), "1" ((_disable_mask)) \
); \
}
/* end of ISR handler macros */
#ifdef __cplusplus
}
#endif
#endif /* _RTEMS_POWERPC_REGISTERS_H */
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