From 90ff45b78d0a8c4ae7e6c99ae58fddac2eb5b5bd Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Wed, 14 Jun 2000 15:37:30 +0000 Subject: Moved from score/cpu/PowerPC. --- c/src/lib/libcpu/powerpc/shared/Makefile.am | 39 +--- c/src/lib/libcpu/powerpc/shared/cpu.h | 332 ---------------------------- c/src/lib/libcpu/powerpc/shared/cpuIdent.c | 53 ----- c/src/lib/libcpu/powerpc/shared/io.h | 130 ----------- c/src/lib/libcpu/powerpc/shared/mmu.h | 306 ------------------------- c/src/lib/libcpu/powerpc/shared/page.h | 68 ------ c/src/lib/libcpu/powerpc/shared/pgtable.h | 146 ------------ c/src/lib/libcpu/powerpc/shared/spr.h | 80 ------- 8 files changed, 4 insertions(+), 1150 deletions(-) delete mode 100644 c/src/lib/libcpu/powerpc/shared/cpu.h delete mode 100644 c/src/lib/libcpu/powerpc/shared/cpuIdent.c delete mode 100644 c/src/lib/libcpu/powerpc/shared/io.h delete mode 100644 c/src/lib/libcpu/powerpc/shared/mmu.h delete mode 100644 c/src/lib/libcpu/powerpc/shared/page.h delete mode 100644 c/src/lib/libcpu/powerpc/shared/pgtable.h delete mode 100644 c/src/lib/libcpu/powerpc/shared/spr.h (limited to 'c/src/lib/libcpu/powerpc') diff --git a/c/src/lib/libcpu/powerpc/shared/Makefile.am b/c/src/lib/libcpu/powerpc/shared/Makefile.am index edbb18ae0c..87a05a3113 100644 --- a/c/src/lib/libcpu/powerpc/shared/Makefile.am +++ b/c/src/lib/libcpu/powerpc/shared/Makefile.am @@ -1,41 +1,10 @@ -## +## ## $Id$ -## +## AUTOMAKE_OPTIONS = foreign 1.4 -C_FILES = cpuIdent.c -C_O_FILES = $(C_FILES:%.c=$(ARCH)/%.o) - -H_FILES = cpu.h spr.h io.h mmu.h page.h byteorder.h pgtable.h - -OBJS = $(C_O_FILES) - -include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg -include $(top_srcdir)/../../../../../automake/lib.am - -LIB = $(ARCH)/libcpuspec.a - -# -# (OPTIONAL) Add local stuff here using += -# - -$(LIB): $(OBJS) - $(make-library) - -$(PROJECT_INCLUDE)/libcpu: - $(mkinstalldirs) $@ - -$(PROJECT_INCLUDE)/libcpu/%.h: %.h - $(INSTALL_DATA) $< $@ - -PREINSTALL_FILES += $(PROJECT_INCLUDE)/libcpu \ - $(H_FILES:%=$(PROJECT_INCLUDE)/libcpu/%) - -all-local: $(ARCH) $(PREINSTALL_FILES) $(OBJS) $(LIB) - -.PRECIOUS: $(LIB) - -EXTRA_DIST = byteorder.h cpu.h cpuIdent.c io.h mmu.h page.h pgtable.h spr.h +SUBDIRS = include src +include $(top_srcdir)/../../../../../automake/subdirs.am include $(top_srcdir)/../../../../../automake/local.am diff --git a/c/src/lib/libcpu/powerpc/shared/cpu.h b/c/src/lib/libcpu/powerpc/shared/cpu.h deleted file mode 100644 index 374ea6c54c..0000000000 --- a/c/src/lib/libcpu/powerpc/shared/cpu.h +++ /dev/null @@ -1,332 +0,0 @@ -/* - * cpu.h - * - * This file contains some powerpc MSR and registers access definitions. - * - * It is a stripped down version of linux ppc processor.h file... - * - * Copyright (C) 1999 Eric Valette (valette@crf.canon.fr) - * Canon Centre Recherche France. - * - * The license and distribution terms for this file may be - * found in found in the file LICENSE in this distribution or at - * http://www.OARcorp.com/rtems/license.html. - * - * $Id$ - */ - -#ifndef __PPC_CPU_H -#define __PPC_CPU_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_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_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 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 ASM -typedef enum { - PPC_601 = 0x1, - PPC_603 = 0x3, - PPC_604 = 0x4, - PPC_603e = 0x6, - PPC_603ev = 0x7, - PPC_750 = 0x8, - PPC_604e = 0x9, - PPC_604r = 0xA, - PPC_620 = 0x16, - PPC_860 = 0x50, - PPC_821 = PPC_860, - PPC_UNKNOWN = 0xff -} ppc_cpu_id_t; - -typedef unsigned short ppc_cpu_revision_t; - -extern ppc_cpu_id_t get_ppc_cpu_type(); -extern ppc_cpu_id_t current_ppc_cpu; -extern ppc_cpu_revision_t get_ppc_cpu_revision(); -extern ppc_cpu_revision_t current_ppc_revision; -/* - * Routines to access the time base register - */ - -static inline unsigned long long PPC_Get_timebase_register( void ) -{ - unsigned long tbr_low; - unsigned long tbr_high; - unsigned long tbr_high_old; - unsigned long long tbr; - - do { - asm volatile( "mftbu %0" : "=r" (tbr_high_old)); - asm volatile( "mftb %0" : "=r" (tbr_low)); - asm volatile( "mftbu %0" : "=r" (tbr_high)); - } while ( tbr_high_old != tbr_high ); - - tbr = tbr_high; - tbr <<= 32; - tbr |= tbr_low; - return tbr; -} - -static inline void PPC_Set_timebase_register (unsigned long long tbr) -{ - unsigned long tbr_low; - unsigned long tbr_high; - - tbr_low = (tbr & 0xffffffff) ; - tbr_high = (tbr >> 32) & 0xffffffff; - asm volatile( "mtspr 284, %0" : : "r" (tbr_low)); - asm volatile( "mtspr 285, %0" : : "r" (tbr_high)); - -} -#endif - -#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 */ - -/* - * Simple spin delay in microsecond units for device drivers. - * This is very dependent on the clock speed of the target. - */ - -#define CPU_Get_timebase_low( _value ) \ - asm volatile( "mftb %0" : "=r" (_value) ) - -#define delay( _microseconds ) \ - do { \ - unsigned32 start, ticks, now; \ - CPU_Get_timebase_low( start ) ; \ - ticks = (_microseconds) * rtems_cpu_configuration_get_clicks_per_usec(); \ - do \ - CPU_Get_timebase_low( now ) ; \ - while (now - start < ticks); \ - } while (0) - -#define delay_in_bus_cycles( _cycles ) \ - do { \ - unsigned32 start, now; \ - CPU_Get_timebase_low( start ); \ - do \ - CPU_Get_timebase_low( now ); \ - while (now - start < (_cycles)); \ - } while (0) - -#define PPC_Set_decrementer( _clicks ) \ - do { \ - asm volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \ - } while (0) - - -#ifdef __cplusplus -} -#endif - -#endif /* __PPC_CPU_H */ - - - - - - - diff --git a/c/src/lib/libcpu/powerpc/shared/cpuIdent.c b/c/src/lib/libcpu/powerpc/shared/cpuIdent.c deleted file mode 100644 index 0bc058acfe..0000000000 --- a/c/src/lib/libcpu/powerpc/shared/cpuIdent.c +++ /dev/null @@ -1,53 +0,0 @@ -/* - * cpuIdent.c -- Cpu identification code - * - * Copyright (C) 1999 Eric Valette. valette@crf.canon.fr - * - * The license and distribution terms for this file may be - * found in found in the file LICENSE in this distribution or at - * http://www.OARcorp.com/rtems/license.html. - * - * $Id$ - * - */ - -#include - -/* - * Generate inline code to read Processor Version Register - */ -SPR_RO(PVR) - -ppc_cpu_id_t current_ppc_cpu = PPC_UNKNOWN; -ppc_cpu_revision_t current_ppc_revision = 0xff; - -ppc_cpu_id_t get_ppc_cpu_type() -{ - unsigned int pvr = (_read_PVR() >> 16) ; - - current_ppc_cpu = (ppc_cpu_id_t) pvr; - switch (pvr) { - case PPC_601 : - case PPC_603 : - case PPC_604 : - case PPC_603e : - case PPC_603ev: - case PPC_750 : - case PPC_604e : - case PPC_604r : - case PPC_620 : - case PPC_860 : - current_ppc_cpu = (ppc_cpu_id_t) pvr; - return current_ppc_cpu; - default : - printk("Unknown PVR value. Please add it to \n"); - return PPC_UNKNOWN; - } - -} -ppc_cpu_revision_t get_ppc_cpu_revision() -{ - ppc_cpu_revision_t rev = (ppc_cpu_revision_t) (_read_PVR() & 0xffff); - current_ppc_revision = rev; - return rev; -} diff --git a/c/src/lib/libcpu/powerpc/shared/io.h b/c/src/lib/libcpu/powerpc/shared/io.h deleted file mode 100644 index 7abcf40c3e..0000000000 --- a/c/src/lib/libcpu/powerpc/shared/io.h +++ /dev/null @@ -1,130 +0,0 @@ -/* - * io.h - * - * This file contains inline implementation of function to - * deal with IO. - * - * It is a stripped down version of linux ppc file... - * - * Copyright (C) 1999 Eric Valette (valette@crf.canon.fr) - * Canon Centre Recherche France. - * - * The license and distribution terms for this file may be - * found in found in the file LICENSE in this distribution or at - * http://www.OARcorp.com/rtems/license.html. - * - * $Id$ - */ -#ifndef _LIBCPU_IO_H_ -#define _LIBCPU_IO_H_ - - -#define PREP_ISA_IO_BASE 0x80000000 -#define PREP_ISA_MEM_BASE 0xc0000000 -#define PREP_PCI_DRAM_OFFSET 0x80000000 - -#define _IO_BASE PREP_ISA_IO_BASE -#define _ISA_MEM_BASE PREP_ISA_MEM_BASE -#define PCI_DRAM_OFFSET PREP_PCI_DRAM_OFFSET - -#ifndef ASM - -#define inb(port) in_8((unsigned char *)((port)+_IO_BASE)) -#define outb(val, port) out_8((unsigned char *)((port)+_IO_BASE), (val)) -#define inw(port) in_le16((unsigned short *)((port)+_IO_BASE)) -#define outw(val, port) out_le16((unsigned short *)((port)+_IO_BASE), (val)) -#define inl(port) in_le32((unsigned *)((port)+_IO_BASE)) -#define outl(val, port) out_le32((unsigned *)((port)+_IO_BASE), (val)) - -/* - * Enforce In-order Execution of I/O: - * Acts as a barrier to ensure all previous I/O accesses have - * completed before any further ones are issued. - */ -extern inline void eieio(void) -{ - __asm__ __volatile__ ("eieio"); -} - - -/* Enforce in-order execution of data I/O. - * No distinction between read/write on PPC; use eieio for all three. - */ -#define iobarrier_rw() eieio() -#define iobarrier_r() eieio() -#define iobarrier_w() eieio() - -/* - * 8, 16 and 32 bit, big and little endian I/O operations, with barrier. - */ -extern inline int in_8(volatile unsigned char *addr) -{ - int ret; - - __asm__ __volatile__("lbz%U1%X1 %0,%1; eieio" : "=r" (ret) : "m" (*addr)); - return ret; -} - -extern inline void out_8(volatile unsigned char *addr, int val) -{ - __asm__ __volatile__("stb%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val)); -} - -extern inline int in_le16(volatile unsigned short *addr) -{ - int ret; - - __asm__ __volatile__("lhbrx %0,0,%1; eieio" : "=r" (ret) : - "r" (addr), "m" (*addr)); - return ret; -} - -extern inline int in_be16(volatile unsigned short *addr) -{ - int ret; - - __asm__ __volatile__("lhz%U1%X1 %0,%1; eieio" : "=r" (ret) : "m" (*addr)); - return ret; -} - -extern inline void out_le16(volatile unsigned short *addr, int val) -{ - __asm__ __volatile__("sthbrx %1,0,%2; eieio" : "=m" (*addr) : - "r" (val), "r" (addr)); -} - -extern inline void out_be16(volatile unsigned short *addr, int val) -{ - __asm__ __volatile__("sth%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val)); -} - -extern inline unsigned in_le32(volatile unsigned *addr) -{ - unsigned ret; - - __asm__ __volatile__("lwbrx %0,0,%1; eieio" : "=r" (ret) : - "r" (addr), "m" (*addr)); - return ret; -} - -extern inline unsigned in_be32(volatile unsigned *addr) -{ - unsigned ret; - - __asm__ __volatile__("lwz%U1%X1 %0,%1; eieio" : "=r" (ret) : "m" (*addr)); - return ret; -} - -extern inline void out_le32(volatile unsigned *addr, int val) -{ - __asm__ __volatile__("stwbrx %1,0,%2; eieio" : "=m" (*addr) : - "r" (val), "r" (addr)); -} - -extern inline void out_be32(volatile unsigned *addr, int val) -{ - __asm__ __volatile__("stw%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val)); -} - -#endif /* ASM */ -#endif /* _LIBCPU_IO_H_ */ diff --git a/c/src/lib/libcpu/powerpc/shared/mmu.h b/c/src/lib/libcpu/powerpc/shared/mmu.h deleted file mode 100644 index 2fb0a3a1bb..0000000000 --- a/c/src/lib/libcpu/powerpc/shared/mmu.h +++ /dev/null @@ -1,306 +0,0 @@ -/* - * mmu.h - * - * PowerPC memory management structures - * - * It is a stripped down version of linux ppc file... - * - * Copyright (C) 1999 Eric Valette (valette@crf.canon.fr) - * Canon Centre Recherche France. - * - * The license and distribution terms for this file may be - * found in found in the file LICENSE in this distribution or at - * http://www.OARcorp.com/rtems/license.html. - * - * $Id$ - */ - -#ifndef _PPC_MMU_H_ -#define _PPC_MMU_H_ - -#ifndef ASM -/* Hardware Page Table Entry */ -typedef struct _PTE { - unsigned long v:1; /* Entry is valid */ - unsigned long vsid:24; /* Virtual segment identifier */ - unsigned long h:1; /* Hash algorithm indicator */ - unsigned long api:6; /* Abbreviated page index */ - unsigned long rpn:20; /* Real (physical) page number */ - unsigned long :3; /* Unused */ - unsigned long r:1; /* Referenced */ - unsigned long c:1; /* Changed */ - unsigned long w:1; /* Write-thru cache mode */ - unsigned long i:1; /* Cache inhibited */ - unsigned long m:1; /* Memory coherence */ - unsigned long g:1; /* Guarded */ - unsigned long :1; /* Unused */ - unsigned long pp:2; /* Page protection */ -} PTE; - -/* Values for PP (assumes Ks=0, Kp=1) */ -#define PP_RWXX 0 /* Supervisor read/write, User none */ -#define PP_RWRX 1 /* Supervisor read/write, User read */ -#define PP_RWRW 2 /* Supervisor read/write, User read/write */ -#define PP_RXRX 3 /* Supervisor read, User read */ - -/* Segment Register */ -typedef struct _SEGREG { - unsigned long t:1; /* Normal or I/O type */ - unsigned long ks:1; /* Supervisor 'key' (normally 0) */ - unsigned long kp:1; /* User 'key' (normally 1) */ - unsigned long n:1; /* No-execute */ - unsigned long :4; /* Unused */ - unsigned long vsid:24; /* Virtual Segment Identifier */ -} SEGREG; - -/* Block Address Translation (BAT) Registers */ -typedef struct _P601_BATU { /* Upper part of BAT for 601 processor */ - unsigned long bepi:15; /* Effective page index (virtual address) */ - unsigned long :8; /* unused */ - unsigned long w:1; - unsigned long i:1; /* Cache inhibit */ - unsigned long m:1; /* Memory coherence */ - unsigned long ks:1; /* Supervisor key (normally 0) */ - unsigned long kp:1; /* User key (normally 1) */ - unsigned long pp:2; /* Page access protections */ -} P601_BATU; - -typedef struct _BATU { /* Upper part of BAT (all except 601) */ - unsigned long bepi:15; /* Effective page index (virtual address) */ - unsigned long :4; /* Unused */ - unsigned long bl:11; /* Block size mask */ - unsigned long vs:1; /* Supervisor valid */ - unsigned long vp:1; /* User valid */ -} BATU; - -typedef struct _P601_BATL { /* Lower part of BAT for 601 processor */ - unsigned long brpn:15; /* Real page index (physical address) */ - unsigned long :10; /* Unused */ - unsigned long v:1; /* Valid bit */ - unsigned long bl:6; /* Block size mask */ -} P601_BATL; - -typedef struct _BATL { /* Lower part of BAT (all except 601) */ - unsigned long brpn:15; /* Real page index (physical address) */ - unsigned long :10; /* Unused */ - unsigned long w:1; /* Write-thru cache */ - unsigned long i:1; /* Cache inhibit */ - unsigned long m:1; /* Memory coherence */ - unsigned long g:1; /* Guarded (MBZ in IBAT) */ - unsigned long :1; /* Unused */ - unsigned long pp:2; /* Page access protections */ -} BATL; - -typedef struct _BAT { - BATU batu; /* Upper register */ - BATL batl; /* Lower register */ -} BAT; - -typedef struct _P601_BAT { - P601_BATU batu; /* Upper register */ - P601_BATL batl; /* Lower register */ -} P601_BAT; - -/* Block size masks */ -#define BL_128K 0x000 -#define BL_256K 0x001 -#define BL_512K 0x003 -#define BL_1M 0x007 -#define BL_2M 0x00F -#define BL_4M 0x01F -#define BL_8M 0x03F -#define BL_16M 0x07F -#define BL_32M 0x0FF -#define BL_64M 0x1FF -#define BL_128M 0x3FF -#define BL_256M 0x7FF - -/* BAT Access Protection */ -#define BPP_XX 0x00 /* No access */ -#define BPP_RX 0x01 /* Read only */ -#define BPP_RW 0x02 /* Read/write */ - -/* - * Simulated two-level MMU. This structure is used by the kernel - * to keep track of MMU mappings and is used to update/maintain - * the hardware HASH table which is really a cache of mappings. - * - * The simulated structures mimic the hardware available on other - * platforms, notably the 80x86 and 680x0. - */ - -typedef struct _pte { - unsigned long page_num:20; - unsigned long flags:12; /* Page flags (some unused bits) */ -} pte; - -#define PD_SHIFT (10+12) /* Page directory */ -#define PD_MASK 0x03FF -#define PT_SHIFT (12) /* Page Table */ -#define PT_MASK 0x03FF -#define PG_SHIFT (12) /* Page Entry */ - - -/* MMU context */ - -typedef struct _MMU_context { - SEGREG segs[16]; /* Segment registers */ - pte **pmap; /* Two-level page-map structure */ -} MMU_context; - -/* Used to set up SDR1 register */ -#define HASH_TABLE_SIZE_64K 0x00010000 -#define HASH_TABLE_SIZE_128K 0x00020000 -#define HASH_TABLE_SIZE_256K 0x00040000 -#define HASH_TABLE_SIZE_512K 0x00080000 -#define HASH_TABLE_SIZE_1M 0x00100000 -#define HASH_TABLE_SIZE_2M 0x00200000 -#define HASH_TABLE_SIZE_4M 0x00400000 -#define HASH_TABLE_MASK_64K 0x000 -#define HASH_TABLE_MASK_128K 0x001 -#define HASH_TABLE_MASK_256K 0x003 -#define HASH_TABLE_MASK_512K 0x007 -#define HASH_TABLE_MASK_1M 0x00F -#define HASH_TABLE_MASK_2M 0x01F -#define HASH_TABLE_MASK_4M 0x03F - -/* invalidate a TLB entry */ -extern inline void _tlbie(unsigned long va) -{ - asm volatile ("tlbie %0" : : "r"(va)); -} - -extern void _tlbia(void); /* invalidate all TLB entries */ -#endif /* ASM */ - -/* Control/status registers for the MPC8xx. - * A write operation to these registers causes serialized access. - * During software tablewalk, the registers used perform mask/shift-add - * operations when written/read. A TLB entry is created when the Mx_RPN - * is written, and the contents of several registers are used to - * create the entry. - */ -#define MI_CTR 784 /* Instruction TLB control register */ -#define MI_GPM 0x80000000 /* Set domain manager mode */ -#define MI_PPM 0x40000000 /* Set subpage protection */ -#define MI_CIDEF 0x20000000 /* Set cache inhibit when MMU dis */ -#define MI_RSV4I 0x08000000 /* Reserve 4 TLB entries */ -#define MI_PPCS 0x02000000 /* Use MI_RPN prob/priv state */ -#define MI_IDXMASK 0x00001f00 /* TLB index to be loaded */ -#define MI_RESETVAL 0x00000000 /* Value of register at reset */ - -/* These are the Ks and Kp from the PowerPC books. For proper operation, - * Ks = 0, Kp = 1. - */ -#define MI_AP 786 -#define MI_Ks 0x80000000 /* Should not be set */ -#define MI_Kp 0x40000000 /* Should always be set */ - -/* The effective page number register. When read, contains the information - * about the last instruction TLB miss. When MI_RPN is written, bits in - * this register are used to create the TLB entry. - */ -#define MI_EPN 787 -#define MI_EPNMASK 0xfffff000 /* Effective page number for entry */ -#define MI_EVALID 0x00000200 /* Entry is valid */ -#define MI_ASIDMASK 0x0000000f /* ASID match value */ - /* Reset value is undefined */ - -/* A "level 1" or "segment" or whatever you want to call it register. - * For the instruction TLB, it contains bits that get loaded into the - * TLB entry when the MI_RPN is written. - */ -#define MI_TWC 789 -#define MI_APG 0x000001e0 /* Access protection group (0) */ -#define MI_GUARDED 0x00000010 /* Guarded storage */ -#define MI_PSMASK 0x0000000c /* Mask of page size bits */ -#define MI_PS8MEG 0x0000000c /* 8M page size */ -#define MI_PS512K 0x00000004 /* 512K page size */ -#define MI_PS4K_16K 0x00000000 /* 4K or 16K page size */ -#define MI_SVALID 0x00000001 /* Segment entry is valid */ - /* Reset value is undefined */ - -/* Real page number. Defined by the pte. Writing this register - * causes a TLB entry to be created for the instruction TLB, using - * additional information from the MI_EPN, and MI_TWC registers. - */ -#define MI_RPN 790 - -/* Define an RPN value for mapping kernel memory to large virtual - * pages for boot initialization. This has real page number of 0, - * large page size, shared page, cache enabled, and valid. - * Also mark all subpages valid and write access. - */ -#define MI_BOOTINIT 0x000001fd - -#define MD_CTR 792 /* Data TLB control register */ -#define MD_GPM 0x80000000 /* Set domain manager mode */ -#define MD_PPM 0x40000000 /* Set subpage protection */ -#define MD_CIDEF 0x20000000 /* Set cache inhibit when MMU dis */ -#define MD_WTDEF 0x10000000 /* Set writethrough when MMU dis */ -#define MD_RSV4I 0x08000000 /* Reserve 4 TLB entries */ -#define MD_TWAM 0x04000000 /* Use 4K page hardware assist */ -#define MD_PPCS 0x02000000 /* Use MI_RPN prob/priv state */ -#define MD_IDXMASK 0x00001f00 /* TLB index to be loaded */ -#define MD_RESETVAL 0x04000000 /* Value of register at reset */ - -#define M_CASID 793 /* Address space ID (context) to match */ -#define MC_ASIDMASK 0x0000000f /* Bits used for ASID value */ - - -/* These are the Ks and Kp from the PowerPC books. For proper operation, - * Ks = 0, Kp = 1. - */ -#define MD_AP 794 -#define MD_Ks 0x80000000 /* Should not be set */ -#define MD_Kp 0x40000000 /* Should always be set */ - -/* The effective page number register. When read, contains the information - * about the last instruction TLB miss. When MD_RPN is written, bits in - * this register are used to create the TLB entry. - */ -#define MD_EPN 795 -#define MD_EPNMASK 0xfffff000 /* Effective page number for entry */ -#define MD_EVALID 0x00000200 /* Entry is valid */ -#define MD_ASIDMASK 0x0000000f /* ASID match value */ - /* Reset value is undefined */ - -/* The pointer to the base address of the first level page table. - * During a software tablewalk, reading this register provides the address - * of the entry associated with MD_EPN. - */ -#define M_TWB 796 -#define M_L1TB 0xfffff000 /* Level 1 table base address */ -#define M_L1INDX 0x00000ffc /* Level 1 index, when read */ - /* Reset value is undefined */ - -/* A "level 1" or "segment" or whatever you want to call it register. - * For the data TLB, it contains bits that get loaded into the TLB entry - * when the MD_RPN is written. It is also provides the hardware assist - * for finding the PTE address during software tablewalk. - */ -#define MD_TWC 797 -#define MD_L2TB 0xfffff000 /* Level 2 table base address */ -#define MD_L2INDX 0xfffffe00 /* Level 2 index (*pte), when read */ -#define MD_APG 0x000001e0 /* Access protection group (0) */ -#define MD_GUARDED 0x00000010 /* Guarded storage */ -#define MD_PSMASK 0x0000000c /* Mask of page size bits */ -#define MD_PS8MEG 0x0000000c /* 8M page size */ -#define MD_PS512K 0x00000004 /* 512K page size */ -#define MD_PS4K_16K 0x00000000 /* 4K or 16K page size */ -#define MD_WT 0x00000002 /* Use writethrough page attribute */ -#define MD_SVALID 0x00000001 /* Segment entry is valid */ - /* Reset value is undefined */ - - -/* Real page number. Defined by the pte. Writing this register - * causes a TLB entry to be created for the data TLB, using - * additional information from the MD_EPN, and MD_TWC registers. - */ -#define MD_RPN 798 - -/* This is a temporary storage register that could be used to save - * a processor working register during a tablewalk. - */ -#define M_TW 799 -#endif /* _PPC_MMU_H_ */ diff --git a/c/src/lib/libcpu/powerpc/shared/page.h b/c/src/lib/libcpu/powerpc/shared/page.h deleted file mode 100644 index 56106f11e2..0000000000 --- a/c/src/lib/libcpu/powerpc/shared/page.h +++ /dev/null @@ -1,68 +0,0 @@ -/* - * page.h - * - * PowerPC memory management structures - * - * It is a stripped down version of linux ppc file... - * - * Copyright (C) 1999 Eric Valette (valette@crf.canon.fr) - * Canon Centre Recherche France. - * - * The license and distribution terms for this file may be - * found in found in the file LICENSE in this distribution or at - * http://www.OARcorp.com/rtems/license.html. - * - * $Id$ - */ - -#ifndef _PPC_PAGE_H -#define _PPC_PAGE_H - -/* PAGE_SHIFT determines the page size */ -#define PAGE_SHIFT 12 -#define PAGE_SIZE (1UL << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE-1)) - -#define PAGE_OFFSET 0xc0000000 - - -#ifndef ASM -/* - * .. while these make it easier on the compiler - */ -typedef unsigned long pte_t; -typedef unsigned long pmd_t; -typedef unsigned long pgd_t; -typedef unsigned long pgprot_t; - -#define pte_val(x) (x) -#define pmd_val(x) (x) -#define pgd_val(x) (x) -#define pgprot_val(x) (x) - -#define __pte(x) (x) -#define __pmd(x) (x) -#define __pgd(x) (x) -#define __pgprot(x) (x) - - -/* align addr on a size boundry - adjust address up if needed -- Cort */ -#define _ALIGN(addr,size) (((addr)+size-1)&(~(size-1))) - -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) - - -#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE) -#define copy_page(to,from) memcpy((void *)(to), (void *)(from), PAGE_SIZE) -/* map phys->virtual and virtual->phys for RAM pages */ - -#define __pa(x) ((unsigned long)(x)-PAGE_OFFSET) -#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET)) - -#define MAP_NR(addr) (((unsigned long)addr-PAGE_OFFSET) >> PAGE_SHIFT) -#define MAP_PAGE_RESERVED (1<<15) - -extern unsigned long get_zero_page_fast(void); -#endif /* ASM */ -#endif /* _PPC_PAGE_H */ diff --git a/c/src/lib/libcpu/powerpc/shared/pgtable.h b/c/src/lib/libcpu/powerpc/shared/pgtable.h deleted file mode 100644 index 30960b68b5..0000000000 --- a/c/src/lib/libcpu/powerpc/shared/pgtable.h +++ /dev/null @@ -1,146 +0,0 @@ -/* - * pgtable.h - * - * PowerPC memory management structures - * - * It is a stripped down version of linux ppc file... - * - * Copyright (C) 1999 Eric Valette (valette@crf.canon.fr) - * Canon Centre Recherche France. - * - * The license and distribution terms for this file may be - * found in found in the file LICENSE in this distribution or at - * http://www.OARcorp.com/rtems/license.html. - * - * $Id$ - */ - -#ifndef _PPC_PGTABLE_H -#define _PPC_PGTABLE_H - -/* - * The PowerPC MMU uses a hash table containing PTEs, together with - * a set of 16 segment registers (on 32-bit implementations), to define - * the virtual to physical address mapping. - * - * We use the hash table as an extended TLB, i.e. a cache of currently - * active mappings. We maintain a two-level page table tree, much like - * that used by the i386, for the sake of the Linux memory management code. - * Low-level assembler code in head.S (procedure hash_page) is responsible - * for extracting ptes from the tree and putting them into the hash table - * when necessary, and updating the accessed and modified bits in the - * page table tree. - * - * The PowerPC MPC8xx uses a TLB with hardware assisted, software tablewalk. - * We also use the two level tables, but we can put the real bits in them - * needed for the TLB and tablewalk. These definitions require Mx_CTR.PPM = 0, - * Mx_CTR.PPCS = 0, and MD_CTR.TWAM = 1. The level 2 descriptor has - * additional page protection (when Mx_CTR.PPCS = 1) that allows TLB hit - * based upon user/super access. The TLB does not have accessed nor write - * protect. We assume that if the TLB get loaded with an entry it is - * accessed, and overload the changed bit for write protect. We use - * two bits in the software pte that are supposed to be set to zero in - * the TLB entry (24 and 25) for these indicators. Although the level 1 - * descriptor contains the guarded and writethrough/copyback bits, we can - * set these at the page level since they get copied from the Mx_TWC - * register when the TLB entry is loaded. We will use bit 27 for guard, since - * that is where it exists in the MD_TWC, and bit 26 for writethrough. - * These will get masked from the level 2 descriptor at TLB load time, and - * copied to the MD_TWC before it gets loaded. - */ - -/* PMD_SHIFT determines the size of the area mapped by the second-level page tables */ -#define PMD_SHIFT 22 -#define PMD_SIZE (1UL << PMD_SHIFT) -#define PMD_MASK (~(PMD_SIZE-1)) - -/* PGDIR_SHIFT determines what a third-level page table entry can map */ -#define PGDIR_SHIFT 22 -#define PGDIR_SIZE (1UL << PGDIR_SHIFT) -#define PGDIR_MASK (~(PGDIR_SIZE-1)) - -/* - * entries per page directory level: our page-table tree is two-level, so - * we don't really have any PMD directory. - */ -#define PTRS_PER_PTE 1024 -#define PTRS_PER_PMD 1 -#define PTRS_PER_PGD 1024 -#define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE) - -/* Just any arbitrary offset to the start of the vmalloc VM area: the - * current 64MB value just means that there will be a 64MB "hole" after the - * physical memory until the kernel virtual memory starts. That means that - * any out-of-bounds memory accesses will hopefully be caught. - * The vmalloc() routines leaves a hole of 4kB between each vmalloced - * area for the same reason. ;) - * - * We no longer map larger than phys RAM with the BATs so we don't have - * to worry about the VMALLOC_OFFSET causing problems. We do have to worry - * about clashes between our early calls to ioremap() that start growing down - * from ioremap_base being run into the VM area allocations (growing upwards - * from VMALLOC_START). For this reason we have ioremap_bot to check when - * we actually run into our mappings setup in the early boot with the VM - * system. This really does become a problem for machines with good amounts - * of RAM. -- Cort - */ -#define VMALLOC_OFFSET (0x4000000) /* 64M */ -#define VMALLOC_START ((((long)high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))) -#define VMALLOC_VMADDR(x) ((unsigned long)(x)) -#define VMALLOC_END ioremap_bot - -/* - * Bits in a linux-style PTE. These match the bits in the - * (hardware-defined) PowerPC PTE as closely as possible. - */ -#define _PAGE_PRESENT 0x001 /* software: pte contains a translation */ -#define _PAGE_USER 0x002 /* matches one of the PP bits */ -#define _PAGE_RW 0x004 /* software: user write access allowed */ -#define _PAGE_GUARDED 0x008 -#define _PAGE_COHERENT 0x010 /* M: enforce memory coherence (SMP systems) */ -#define _PAGE_NO_CACHE 0x020 /* I: cache inhibit */ -#define _PAGE_WRITETHRU 0x040 /* W: cache write-through */ -#define _PAGE_DIRTY 0x080 /* C: page changed */ -#define _PAGE_ACCESSED 0x100 /* R: page referenced */ -#define _PAGE_HWWRITE 0x200 /* software: _PAGE_RW & _PAGE_DIRTY */ -#define _PAGE_SHARED 0 - -#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY) - -#define _PAGE_BASE _PAGE_PRESENT | _PAGE_ACCESSED -#define _PAGE_WRENABLE _PAGE_RW | _PAGE_DIRTY | _PAGE_HWWRITE - -#define PAGE_NONE __pgprot(_PAGE_PRESENT | _PAGE_ACCESSED) - -#define PAGE_SHARED __pgprot(_PAGE_BASE | _PAGE_RW | _PAGE_USER | \ - _PAGE_SHARED) -#define PAGE_COPY __pgprot(_PAGE_BASE | _PAGE_USER) -#define PAGE_READONLY __pgprot(_PAGE_BASE | _PAGE_USER) -#define PAGE_KERNEL __pgprot(_PAGE_BASE | _PAGE_WRENABLE | _PAGE_SHARED) -#define PAGE_KERNEL_CI __pgprot(_PAGE_BASE | _PAGE_WRENABLE | _PAGE_SHARED | \ - _PAGE_NO_CACHE ) - -/* - * The PowerPC can only do execute protection on a segment (256MB) basis, - * not on a page basis. So we consider execute permission the same as read. - * Also, write permissions imply read permissions. - * This is the closest we can get.. - */ -#define __P000 PAGE_NONE -#define __P001 PAGE_READONLY -#define __P010 PAGE_COPY -#define __P011 PAGE_COPY -#define __P100 PAGE_READONLY -#define __P101 PAGE_READONLY -#define __P110 PAGE_COPY -#define __P111 PAGE_COPY - -#define __S000 PAGE_NONE -#define __S001 PAGE_READONLY -#define __S010 PAGE_SHARED -#define __S011 PAGE_SHARED -#define __S100 PAGE_READONLY -#define __S101 PAGE_READONLY -#define __S110 PAGE_SHARED -#define __S111 PAGE_SHARED -#endif /* _PPC_PGTABLE_H */ diff --git a/c/src/lib/libcpu/powerpc/shared/spr.h b/c/src/lib/libcpu/powerpc/shared/spr.h deleted file mode 100644 index 2df38f5644..0000000000 --- a/c/src/lib/libcpu/powerpc/shared/spr.h +++ /dev/null @@ -1,80 +0,0 @@ -/* - * spr.h -- Access to special purpose registers. - * - * Copyright (C) 1998 Gabriel Paubert, paubert@iram.es - * - * Modified to compile in RTEMS development environment - * by Eric Valette - * - * Copyright (C) 1999 Eric Valette. valette@crf.canon.fr - * - * The license and distribution terms for this file may be - * found in found in the file LICENSE in this distribution or at - * http://www.OARcorp.com/rtems/license.html. - * - * $Id$ - * - */ - - -#ifndef _PPC_SPR_H -#define _PPC_SPR_H - -#include - -#define __MFSPR(reg, val) \ - __asm__ __volatile__("mfspr %0,"#reg : "=r" (val)) - -#define __MTSPR(val, reg) \ - __asm__ __volatile__("mtspr "#reg",%0" : : "r" (val)) - - -#define SPR_RW(reg) \ -static inline unsigned long _read_##reg(void) \ -{\ - unsigned long val;\ - __MFSPR(reg, val);\ - return val;\ -}\ -static inline void _write_##reg(unsigned long val)\ -{\ - __MTSPR(val,reg);\ - return;\ -} - -#define SPR_RO(reg) \ -static inline unsigned long _read_##reg(void) \ -{\ - unsigned long val;\ - __MFSPR(reg,val);\ - return val;\ -} - -static inline unsigned long _read_MSR(void) -{ - unsigned long val; - asm volatile("mfmsr %0" : "=r" (val)); - return val; -} - -static inline void _write_MSR(unsigned long val) -{ - asm volatile("mtmsr %0" : : "r" (val)); - return; -} - -static inline unsigned long _read_SR(void * va) -{ - unsigned long val; - asm volatile("mfsrin %0,%1" : "=r" (val): "r" (va)); - return val; -} - -static inline void _write_SR(unsigned long val, void * va) -{ - asm volatile("mtsrin %0,%1" : : "r"(val), "r" (va): "memory"); - return; -} - - -#endif -- cgit v1.2.3