Changeset 745


Ignore:
Timestamp:
Jul 10, 2014, 11:42:14 AM (8 years ago)
Author:
cfuguet
Message:

Merge 'trunk' new modifications into 'fault_tolerance'

Location:
branches/fault_tolerance/softs
Files:
10 edited

Legend:

Unmodified
Added
Removed
  • branches/fault_tolerance/softs/giet_tsar/giet.S

    r724 r745  
    44*       Date : 15/01/2014
    55*********************************************************************************
    6 * This is a very simple Interrupts/Exception/Traps handler for a generic 
     6* This is a very simple Interrupts/Exception/Traps handler for a generic
    77* multi-clusters / multi-processors TSAR architecture (up to 256 clusters,
    8 * up to 4  processors per cluster). 
     8* up to 4  processors per cluster).
    99* The physical address is 40 bits, and the 8 MSB bits A[39:32] define the
    1010* cluster index.
     
    1515    .section .giet,"ax",@progbits
    1616    .align 2
    17     .global _interrupt_vector   
     17    .global _interrupt_vector
    1818
    1919    .extern seg_xcu_base
     
    7878*   System Call Handler
    7979*
    80 * As the GIET_TSAR does not support system calls, 
     80* As the GIET_TSAR does not support system calls,
    8181* an error message is displayed on TTY0, the program is killed.
    8282****************************************************************/
     
    9797
    9898    mfc0    $4,     $14             /* $4 <= EPC */
    99     la      $5,     _itoa_buffer    /* $5 <= buffer address */ 
     99    la      $5,     _itoa_buffer    /* $5 <= buffer address */
    100100    addiu   $5,     $5,     2       /* skip the 0x prefix */
    101101    jal     _itoa_hex               /* fill the buffer */
     
    108108    nop
    109109
    110     j       _exit                   /* end of program */ 
     110    j       _exit                   /* end of program */
    111111
    112112_itoa_buffer: .ascii "0x00000000"
     
    122122* It makes the assumption that there is only one interrupt per
    123123* entry in the interrupt vector (it can be PTI, HWI, or WTI).
    124 * In case of a multi-clusters architecture, it exist one XCU 
    125 * per cluster, and the base address of the ICU segment depends 
     124* In case of a multi-clusters architecture, it exist one XCU
     125* per cluster, and the base address of the ICU segment depends
    126126* on both the cluster_xy and the proc_id:
    127127* - base_address = seg_xcu_base + (32*local_id) + (4G*cluster_xy)
     
    164164    sw      $31,    4*21($29)       /* save $31 */
    165165    mfc0    $27,    $14
    166     sw      $27,    4*22($29)       /* save EPC */ 
     166    sw      $27,    4*22($29)       /* save EPC */
    167167
    168168    /* XICU PRIO register address computation         */
     
    170170    /* and we must use the physical address extension */
    171171    mfc0    $10,    $15,    1        /* $10 <= proc_id                                 */
    172     andi    $10,    $10,    0x3FF    /* at most 1024 processors                        */ 
     172    andi    $10,    $10,    0x3FF    /* at most 1024 processors                        */
    173173    li      $11,    NB_PROCS_MAX
    174174    divu    $10,    $11
     
    184184    /* XCU[cluster_xy] access to get PRIO register value                               */
    185185    mtc2    $12,    $24              /* set PADDR extension                            */
    186     lw      $15,    ($26)            /* $15 <= PRIO register value                     */
     186    lw      $15,    0($26)           /* $15 <= PRIO register value                     */
    187187    mtc2    $0,     $24              /* reset PADDR extension                          */
    188188
     
    194194    andi    $27,    $15,    0x4      /* test bit W in PRIO register                    */
    195195    bne     $27,    $0,     _int_WTI /* branch to WTI handler                          */
    196    
     196
    197197    /* exit interrupt handler: restore registers */
    198198_int_restore:
     
    200200    lw      $1,     4*4($29)
    201201    .set at
    202     lw      $2,     4*5($29) 
    203     lw      $3,     4*6($29) 
     202    lw      $2,     4*5($29)
     203    lw      $3,     4*6($29)
    204204    lw      $4,     4*7($29)
    205     lw      $5,     4*8($29) 
     205    lw      $5,     4*8($29)
    206206    lw      $6,     4*9($29)
    207     lw      $7,     4*10($29) 
     207    lw      $7,     4*10($29)
    208208    lw      $8,     4*11($29)
    209209    lw      $9,     4*12($29)
     
    217217    lw      $25,    4*20($29)
    218218    lw      $31,    4*21($29)
    219     lw      $27,    4*22($29)        /* get EPC */ 
     219    lw      $27,    4*22($29)        /* get EPC */
    220220    addiu   $29,    $29,    23*4     /* restore SP */
    221221    mtc0    $27,    $14              /* restore EPC */
     
    233233    la      $27,    _interrupt_vector
    234234    addu    $26,    $26,    $27
    235     lw      $26,    ($26)            /* read ISR address             */ 
     235    lw      $26,    ($26)            /* read ISR address             */
    236236    jalr    $26                      /* call ISR                     */
    237237    nop
     
    246246    la      $27,    _interrupt_vector
    247247    addu    $26,    $26,    $27      /* $26 <= &ISR[HWI_INDEX        */
    248     lw      $26,    ($26)            /* read ISR address             */ 
     248    lw      $26,    ($26)            /* read ISR address             */
    249249    jalr    $26                      /* call ISR                     */
    250250    nop
     
    262262    la      $27,    _interrupt_vector
    263263    addu    $26,    $26,    $27      /* $26 <= &ISR[WTI_INDEX]       */
    264     lw      $26,    ($26)            /* read ISR address             */ 
     264    lw      $26,    ($26)            /* read ISR address             */
    265265    jalr    $26                      /* call ISR                     */
    266266    nop
    267267    j       _int_restore             /* return from INT handler */
    268268    nop
    269    
     269
    270270/* The default ISR is called when no specific ISR has been installed */
    271271/* in the interrupt vector. It simply displays a message on TTY0     */
     
    273273isr_default:
    274274    addiu   $29,    $29,    -20     /* get space in stack */
    275     sw      $31,    16($29)         /* to save the return address */ 
     275    sw      $31,    16($29)         /* to save the return address */
    276276    la      $4,     _msg_default    /* $4 <= string address */
    277277    addi    $5,     $0,     36      /* $5 <= string length */
    278278    li      $6,     0               /* $6 <= TTY0 */
    279     jal     _tty_write 
    280     lw      $31,    16($29)         /* restore return address */ 
     279    jal     _tty_write
     280    lw      $31,    16($29)         /* restore return address */
    281281    addiu   $29,    $29,    20      /* free space */
    282282    jr      $31                     /* returns to interrupt handler */
     
    284284/****************************************************************
    285285*  Interrupt Vector Table (indexed by interrupt index)
    286 *  32 words corresponding to 32 ISR addresses 
     286*  32 words corresponding to 32 ISR addresses
    287287****************************************************************/
    288288_interrupt_vector:
     
    355355    li      $5,     36              /* $5 <= message length */
    356356    li      $6,     0               /* $6 <= TTY0 */
    357     jal     _tty_write               
     357    jal     _tty_write
    358358    nop
    359359
     
    362362    li      $5,     8               /* $5 <= message length */
    363363    li      $6,     0               /* $6 <= TTY0 */
    364     jal     _tty_write           
    365     nop
    366    
     364    jal     _tty_write
     365    nop
     366
    367367    mfc0    $4,     $14             /* $4 <= EPC value */
    368368    la      $5,     _itoa_buffer    /* $5 <= buffer address */
     
    377377    nop
    378378
    379     /* display BAR value */ 
     379    /* display BAR value */
    380380    la      $4,     _msg_bar        /* $4 <= message address */
    381381    li      $5,     8               /* $5 <= message length */
     
    385385
    386386    mfc0    $4,     $8              /* $4 <= BAR value */
    387     la      $5,     _itoa_buffer    /* $5 <= buffer address */ 
    388     addiu   $5,     $5,     2       /* skip 0x prefix */ 
     387    la      $5,     _itoa_buffer    /* $5 <= buffer address */
     388    addiu   $5,     $5,     2       /* skip 0x prefix */
    389389    jal     _itoa_hex               /* fill buffer */
    390390    nop
     
    393393    li      $5,     10              /* $5 <= message length */
    394394    li      $6,     0               /* $6 <= TTY0 */
    395     jal     _tty_write 
    396     nop
    397 
    398    
     395    jal     _tty_write
     396    nop
     397
     398
    399399    /* release the lock on TTY0 */
    400400    li      $4,     0
  • branches/fault_tolerance/softs/giet_tsar/mips32_registers.h

    r724 r745  
    5858/* CP2 registers */
    5959
    60 #define CP2_PTPR             $0 
     60#define CP2_PTPR             $0
    6161#define CP2_MODE             $1
    6262#define CP2_ICACHE_FLUSH     $2
    6363#define CP2_DCACHE_FLUSH     $3
    64 #define CP2_ITLB_INVAL       $4 
    65 #define CP2_DTLB_INVAL       $5 
    66 #define CP2_ICACHE_INVAL     $6 
     64#define CP2_ITLB_INVAL       $4
     65#define CP2_DTLB_INVAL       $5
     66#define CP2_ICACHE_INVAL     $6
    6767#define CP2_DCACHE_INVAL     $7
    68 #define CP2_ICACHE_PREFETCH  $8 
    69 #define CP2_DCACHE_PREFETCH  $9 
    70 #define CP2_SYNC             $10 
    71 #define CP2_IETR             $11 
    72 #define CP2_DETR             $12 
     68#define CP2_ICACHE_PREFETCH  $8
     69#define CP2_DCACHE_PREFETCH  $9
     70#define CP2_SYNC             $10
     71#define CP2_IETR             $11
     72#define CP2_DETR             $12
    7373#define CP2_IBVAR            $13
    7474#define CP2_DBVAR            $14
    75 #define CP2_PARAMS           $15 
    76 #define CP2_RELEASE          $16 
    77 #define CP2_DATA_LO          $17     
    78 #define CP2_DATA_HI          $18         
    79 #define CP2_ICACHE_INVAL_PA  $19         
    80 #define CP2_DCACHE_INVAL_PA  $20 
     75#define CP2_PARAMS           $15
     76#define CP2_RELEASE          $16
     77#define CP2_DATA_LO          $17
     78#define CP2_DATA_HI          $18
     79#define CP2_ICACHE_INVAL_PA  $19
     80#define CP2_DCACHE_INVAL_PA  $20
    8181#define CP2_PADDR_EXT        $24
    8282#endif
  • branches/fault_tolerance/softs/giet_tsar/reset.S

    r724 r745  
    11/********************************************************************************
    2 *       File : reset.S
    3 *       Author : Alain Greiner
    4 *       Date : 15/01/2014
     2*   File : reset.S
     3*   Author : Alain Greiner
     4*   Date : 15/01/2014
    55*********************************************************************************
    66* This is a boot code for a generic multi-clusters / multi-processors
    7 * TSAR architecture (up to 256 clusters / up to 4  processors per cluster). 
     7* TSAR architecture (up to 256 clusters / up to 4  processors per cluster).
    88* The physical address is 40 bits, and the 8 MSB bits A[39:32] define the
    99* cluster index.
    1010*
    11 * As we don't want to use the virtual memory, the physical address is 
     11* As we don't want to use the virtual memory, the physical address is
    1212* equal to  the virtual address (identity mapping) and all processors stacks
    13 * and code segments are allocated in the physical memory bank in cluster 0. 
     13* and code segments are allocated in the physical memory bank in cluster 0.
    1414*
    1515* Both the reset base address and the kernel base address must be redefined
     
    2222* There is two sets of peripherals:
    2323*
    24 * 1) A block device and a single channel TTY controller are available 
     24* 1) A block device and a single channel TTY controller are available
    2525*    in cluster(0,0).
    2626*
    27 * 2) Other peripherals (including another Blockdevice, a multi-channels TTY 
     27* 2) Other peripherals (including another Blockdevice, a multi-channels TTY
    2828*    contrÃŽler, a Frame buffer) are located in cluster_io.
    2929*    For those externals peripherals, hardware interrupts (HWI) are translated
     
    3434*   - Each processor initializes the stack pointer ($29) depending on proc_id.
    3535*   - Each processor initializes the CP0 EBASE register
    36 *       - Only processor 0 initializes the Interrupt vector.
     36*   - Only processor 0 initializes the Interrupt vector.
    3737*       - Only processor 0 initializes the IOPIC component.
    3838*   - Each processor initializes its private XCU mask.
    39 *       - Each processor initializes the Status Register (SR)
    40 *       - Each processor jumps to the same main address in kernel mode...
     39*   - Each processor initializes the Status Register (SR)
     40*   - Each processor jumps to the same main address in kernel mode...
    4141********************************************************************************/
    4242
     
    4444#include "mips32_registers.h"
    4545
    46         .section .reset,"ax",@progbits
     46    .section .reset,"ax",@progbits
    4747
    48         .extern seg_stack_base
    49         .extern seg_xcu_base
     48    .extern seg_stack_base
     49    .extern seg_xcu_base
    5050        .extern seg_pic_base
    5151    .extern seg_kcode_base
    52         .extern _interrupt_vector
    53         .extern _ioc_isr
    54         .extern _mmc_isr
     52    .extern _interrupt_vector
     53    .extern _ioc_isr
     54    .extern _mmc_isr
    5555    .extern _tty_isr
    5656    .extern main
    5757
    58         .globl  reset                           
    59         .ent    reset
    60         .align  2
     58    .globl  reset
     59    .ent    reset
     60    .align  2
    6161
    6262reset:
    63         .set noreorder
     63        .set noreorder
    6464
    6565/* each proc computes  proc_id, lpid, cluster_xy */
    6666    mfc0    $26,    CP0_PROCID
    67     andi    $26,    $26,    0x3FF           /* at most 1024 processors */
     67    andi    $26,    $26,    0x3FF       /* at most 1024 processors */
    6868    move    $10,    $26                 /* $10 <= proc_id  */
    6969    li      $27,    NB_PROCS_MAX
     
    7373
    7474/* each proc initializes stack pointer (64K per processor) */
     75    srl     $8,     $12,    Y_WIDTH     /* $8  <= x */
     76    li      $9,     Y_SIZE
     77    mul     $8,     $8,     $9          /* $8  <= x * Y_SIZE */
     78    andi    $13,    $12,    (1<<Y_WIDTH)-1
     79    addu    $8,     $8,     $13         /* $8  <= x * Y_SIZE + y */
     80    mul     $8,     $8,     $27         /* $8  <= (x*Y_SIZE+y)*NB_PROCS_MAX */
     81    addu    $10,    $11,    $8          /* $10 <= (x*Y_SIZE+y)*NB_PROCS_MAX + lpid */
     82
    7583    la      $27,    seg_stack_base
    76     addi    $26,    $10,    1               /* $26 <= (proc_id + 1)           */
     84    addi    $26,    $10,    1           /* $26 <= (proc_id + 1)           */
    7785    sll     $26,    $26,    14          /* $26 <= (proc_id + 1) * 16K     */
    78     addu    $29,    $27,    $26             /* $29 <= seg_stack_base(proc_id) */
     86    addu    $29,    $27,    $26         /* $29 <= seg_stack_base(proc_id) */
    7987
    8088/* each proc initializes CP0 EBASE register */
     
    8391
    8492/* only proc (0,0,0) initializes interrupt vector for IOC, TTY, MMC     */
    85     bne     $10,    $0,    reset_xcu
     93    bne     $10,    $0,    reset_xcu
    8694    nop
    8795
    8896    la      $26,    _interrupt_vector   /* interrupt vector address                */
    89     la      $27,    _mmc_isr 
     97    la      $27,    _mmc_isr
    9098    sw      $27,    32($26)             /* interrupt_vector[8] <= _mmc_isr         */
    91     la      $27,    _ioc_isr 
     99    la      $27,    _ioc_isr
    92100    sw      $27,    36($26)             /* interrupt_vector[9] <= _ioc_isr         */
    93     la      $27,    _tty_isr 
     101    la      $27,    _tty_isr
    94102    sw      $27,    40($26)             /* interrupt_vector[10] <= _tty_isr        */
    95103
    96104/* only proc (0,0,0) initializes IOPIC : IOPIC_ADDRESS[i] <= &XICU[0].WTI_REG[i]   */
    97105
    98     li      $26,    USE_EXT_IO
    99     beq     $26,    $0,     reset_xcu   /* IOPIC not initialised if not USE_EXT_IO */
     106#if USE_IOPIC
    100107
    101108    li      $20,    X_SIZE
     
    120127
    121128    mtc2    $0,     CP2_PADDR_EXT       /* CP2_PADDR_EXT <= zero                   */
    122    
     129
     130#endif
     131
    123132reset_xcu:
    124133
     
    140149
    141150/* initializes SR register */
    142     li      $26,    0x0000FF01         
    143     mtc0    $26,    $12                         /* SR <= kernel mode / IRQ enable */
     151    li      $26,    0x0000FF01
     152    mtc0    $26,    $12                 /* SR <= kernel mode / IRQ enable */
    144153
    145154/* jumps to main in kernel mode */
    146     la      $26,    main
     155    la      $26,    main
    147156    jr      $26
    148157    nop
    149158
    150     .end        reset
     159    .end    reset
    151160
    152161    .set reorder
  • branches/fault_tolerance/softs/giet_tsar/stdio.c

    r724 r745  
    11////////////////////////////////////////////////////////////////////////////////////////
    22// File : stdio.c
    3 // Written by Alain Greiner 
    4 // Date : janvier 2014 
     3// Written by Alain Greiner
     4// Date : janvier 2014
    55//
    66// This file defines various functions that can be used by applications to access
     
    2222// - NB_PROCS_MAX    : max number of processor per cluster
    2323// - NB_TTY_CHANNELS : max number of TTY channels
    24 // - USE_EXT_IO      : use external peripherals if not zero
    2524//
    2625// The follobing base addresses must be defined in the ldscript
     
    3635#endif
    3736
    38 #if !defined(USE_EXT_IO)
    39 #error: you must define USE_EXT_IO in the hard_config.h file
     37#if !defined(X_IO) || !defined(Y_IO)
     38#error: you must define X_IO and Y_IO in the hard_config.h file
    4039#endif
    4140
     
    6867#endif
    6968
    70 
    71 
    72 
    7369#define NB_LOCKS      256
    7470#define NB_BARRIERS   16
     
    8278
    8379struct plouf;
    84 
    85 extern struct plouf seg_tty_base;
    86 extern struct plouf seg_fbf_base;
    87 extern struct plouf seg_ioc_base;
    88 extern struct plouf seg_mmc_base;
    89 extern struct plouf seg_ramdisk_base;
     80extern volatile struct plouf seg_tty_base;
     81extern volatile struct plouf seg_fbf_base;
     82extern volatile struct plouf seg_ioc_base;
     83extern volatile struct plouf seg_mmc_base;
     84extern volatile struct plouf seg_ramdisk_base;
    9085
    9186////////////////////////////////////////////////////////////////////////////////////////
     
    9388////////////////////////////////////////////////////////////////////////////////////////
    9489
    95 in_unckdata int volatile    _ioc_lock    = 0;
    96 in_unckdata int volatile    _ioc_done    = 0;
    97 in_unckdata int volatile    _ioc_status;
    98 
    99 in_unckdata char volatile  _tty_get_buf[NB_TTY_CHANNELS];
    100 in_unckdata int volatile    _tty_get_full[NB_TTY_CHANNELS] = { [0 ... NB_TTY_CHANNELS-1] = 0 };
     90static in_unckdata int volatile  _ioc_lock    = 0;
     91static in_unckdata int volatile  _ioc_done    = 0;
     92static in_unckdata int volatile  _ioc_status;
     93
     94static in_unckdata char volatile _tty_get_buf[NB_TTY_CHANNELS];
     95static in_unckdata int volatile  _tty_get_full[NB_TTY_CHANNELS] = { [0 ... NB_TTY_CHANNELS-1] = 0 };
    10196
    10297////////////////////////////////////////////////////////////////////////////////////////
     
    10499////////////////////////////////////////////////////////////////////////////////////////
    105100
    106 in_unckdata int volatile    _barrier_value[NB_BARRIERS] = { [0 ... NB_BARRIERS-1] = 0 };
    107 in_unckdata int volatile    _barrier_count[NB_BARRIERS] = { [0 ... NB_BARRIERS-1] = 0 };
    108 in_unckdata int volatile    _barrier_lock[NB_BARRIERS]   = { [0 ... NB_BARRIERS-1] = 0 };
     101static in_unckdata int volatile  _barrier_value[NB_BARRIERS] = { [0 ... NB_BARRIERS-1] = 0 };
     102static in_unckdata int volatile  _barrier_count[NB_BARRIERS] = { [0 ... NB_BARRIERS-1] = 0 };
     103static in_unckdata int volatile  _barrier_lock[NB_BARRIERS]  = { [0 ... NB_BARRIERS-1] = 0 };
    109104
    110105////////////////////////////////////////////////////////////////////////////////////////
     
    112107////////////////////////////////////////////////////////////////////////////////////////
    113108
    114 in_unckdata int volatile    _spin_lock[NB_LOCKS] =    { [0 ... NB_LOCKS-1] = 0 };
     109static in_unckdata int volatile  _spin_lock[NB_LOCKS] = { [0 ... NB_LOCKS-1] = 0 };
    115110
    116111////////////////////////////////////////////////////////////////////////////////////////
    117112// Memcopy taken from MutekH.
    118113////////////////////////////////////////////////////////////////////////////////////////
    119 in_drivers void* _memcpy( void*        _dst, 
    120                           const void*  _src, 
     114in_drivers void* _memcpy( void*        _dst,
     115                          const void*  _src,
    121116                          unsigned int size )
    122117{
     
    125120    if ( ! ((unsigned int)dst & 3) && ! ((unsigned int)src & 3) )
    126121    {
    127         while (size > 3) 
     122        while (size > 3)
    128123        {
    129124            *dst++ = *src++;
     
    135130    unsigned char *csrc = (unsigned char*)src;
    136131
    137     while (size--) 
     132    while (size--)
    138133    {
    139134        *cdst++ = *csrc++;
     
    146141in_drivers void  _extended_memcpy( unsigned int dst_cluster,
    147142                                   unsigned int dst_address,
    148                                    unsigned int src_cluster,
    149143                                   unsigned int src_address,
    150144                                   unsigned int length )
     
    189183// Returns the number of processsors controled by the GIET
    190184////////////////////////////////////////////////////////////////////////////////////////
    191 in_drivers unsigned int _procnumber()
     185in_drivers inline unsigned int _procnumber()
    192186{
    193187    return (unsigned int)(NB_PROCS_MAX * X_SIZE * Y_SIZE);
     
    205199}
    206200////////////////////////////////////////////////////////////////////////////////////////
     201// Access CP0 and enable IRQs
     202////////////////////////////////////////////////////////////////////////////////////////
     203in_drivers inline void _it_enable()
     204{
     205    asm volatile(
     206            "mfc0   $8,     $12         \n"
     207            "ori    $8,     $8,     1   \n"
     208            "mtc0   $8,     $12         \n"
     209            ::: "$8");
     210}
     211////////////////////////////////////////////////////////////////////////////////////////
    207212// Access CP0 and mask IRQs
    208213////////////////////////////////////////////////////////////////////////////////////////
    209 in_drivers void _it_mask()
    210 {
    211     int tmp;
    212     asm volatile("mfc0  %0, $12"    : "=r" (tmp) );
    213     asm volatile("ori   %0, %0, 1"  : "=r" (tmp) );
    214     asm volatile("mtc0  %0, $12"    : "=r" (tmp) );
    215 }
    216 ////////////////////////////////////////////////////////////////////////////////////////
    217 // Access CP0 and enable IRQs
    218 ////////////////////////////////////////////////////////////////////////////////////////
    219 in_drivers void _it_enable()
    220 {
    221     int tmp;
    222     asm volatile("mfc0  %0, $12"    : "=r" (tmp) );
    223     asm volatile("addi  %0, %0, -1" : "=r" (tmp) );
    224     asm volatile("mtc0  %0, $12"    : "=r" (tmp) );
    225 }
     214in_drivers inline void _it_disable()
     215{
     216    asm volatile(
     217            "li     $9,     0xFFFFFFFE  \n"
     218            "mfc0   $8,     $12         \n"
     219            "and    $8,     $8,     $9  \n"
     220            "mtc0   $8,     $12         \n"
     221            ::: "$8","$9");
     222}
     223
     224////////////////////////////////////////////////////////////////////////////////////////
     225// Access CP0 and mask IRQs
     226////////////////////////////////////////////////////////////////////////////////////////
     227in_drivers inline void _sr_write(int sr)
     228{
     229    asm volatile("mtc0  %0, $12        \n" : /* no outputs */ : "r" (sr));
     230}
     231
     232in_drivers inline int _sr_read()
     233{
     234    int ret;
     235    asm volatile("mfc0  %0, $12        \n" : "=r" (ret));
     236    return ret;
     237}
     238
    226239//////////////////////////////////////////////////////////////////////
    227240// Invalidate all cache lines corresponding to a memory buffer.
     
    246259
    247260////////////////////////////////////////////////////////////////////////////
    248 // This function makes a physical read access to a 32 bits word in memory, 
     261// This function makes a physical read access to a 32 bits word in memory,
    249262// after a temporary paddr extension.
    250263////////////////////////////////////////////////////////////////////////////
    251 in_drivers unsigned int _word_extended_read( unsigned int  cluster,
    252                                              unsigned int  address )
    253 {
    254     unsigned int value;
     264in_drivers volatile unsigned int _word_extended_read( unsigned int cluster,
     265                                                      unsigned int address )
     266{
     267    int sr = _sr_read();
     268    volatile unsigned int value;
    255269    asm volatile(
    256270            "li      $3,        0xFFFFFFFE    \n"
    257             "mfc0    $2,        $12           \n"
    258             "and     $3,        $2, $3        \n"
     271            "and     $3,        %3,     $3    \n"
    259272            "mtc0    $3,        $12           \n"     /* IRQ disabled     */
    260273
    261             "mtc2    %2,        $24           \n"     /* PADDR_EXT <= msb */   
     274            "mtc2    %2,        $24           \n"     /* PADDR_EXT <= msb */
    262275            "lw      %0,        0(%1)         \n"     /* value <= *paddr  */
    263276            "mtc2    $0,        $24           \n"     /* PADDR_EXT <= 0   */
    264277
    265             "li      $3,        0x00000001    \n"
    266             "mfc0    $2,        $12           \n"
    267             "or      $3,        $3, $2        \n"
    268             "mtc0    $3,        $12           \n"     /* IRQ enabled      */
    269278            : "=r" (value)
    270             : "r" (address), "r" (cluster)
    271             : "$2", "$3" );
     279            : "r" (address), "r" (cluster), "r" (sr)
     280            : "$2", "$3", "memory" );
     281
     282    _sr_write(sr);
    272283    return value;
    273284}
    274285////////////////////////////////////////////////////////////////////////////
    275 // This function makes a physical read access to a single byte in memory, 
     286// This function makes a physical read access to a single byte in memory,
    276287// after a temporary paddr extension.
    277288////////////////////////////////////////////////////////////////////////////
    278 in_drivers unsigned char _byte_extended_read( unsigned int  cluster,
    279                                               unsigned int  address )
    280 {
    281     unsigned int value;
     289in_drivers volatile unsigned char _byte_extended_read( unsigned int  cluster,
     290                                                       unsigned int  address )
     291{
     292    int sr = _sr_read();
     293    volatile unsigned char value;
    282294    asm volatile(
    283295            "li      $3,        0xFFFFFFFE    \n"
    284             "mfc0    $2,        $12           \n"
    285             "and     $3,        $2, $3        \n"
     296            "and     $3,        %3,     $3    \n"
    286297            "mtc0    $3,        $12           \n"     /* IRQ disabled     */
    287298
    288             "mtc2    %2,        $24           \n"     /* PADDR_EXT <= msb */   
     299            "mtc2    %2,        $24           \n"     /* PADDR_EXT <= msb */
    289300            "lb      %0,        0(%1)         \n"     /* value <= *paddr  */
    290301            "mtc2    $0,        $24           \n"     /* PADDR_EXT <= 0   */
    291302
    292             "li      $3,        0x00000001    \n"
    293             "mfc0    $2,        $12           \n"
    294             "or      $3,        $3, $2        \n"
    295             "mtc0    $3,        $12           \n"     /* IRQ enabled      */
    296303            : "=r" (value)
    297             : "r" (address), "r" (cluster)
    298             : "$2", "$3" );
    299     return (unsigned char)value;
     304            : "r" (address), "r" (cluster), "r" (sr)
     305            : "$2", "$3", "memory" );
     306
     307    _sr_write(sr);
     308    return value;
    300309}
    301310////////////////////////////////////////////////////////////////////////////
    302 // This function makes a physical write access to a 32 bits word in memory, 
     311// This function makes a physical write access to a 32 bits word in memory,
    303312// after a temporary DTLB address extension.
    304313////////////////////////////////////////////////////////////////////////////
    305 in_drivers void _word_extended_write( unsigned int  cluster, 
     314in_drivers void _word_extended_write( unsigned int  cluster,
    306315                                      unsigned int  address,
    307                                       unsigned int  word )
    308 {
     316                                      unsigned int  word )
     317{
     318    int sr = _sr_read();
    309319    asm volatile(
    310320            "li      $3,        0xFFFFFFFE    \n"
    311             "mfc0    $2,        $12           \n"
    312             "and     $3,        $2, $3        \n"
     321            "and     $3,        %3,     $3    \n"
    313322            "mtc0    $3,        $12           \n"     /* IRQ disabled     */
    314323
    315             "mtc2    %2,        $24           \n"     /* PADDR_EXT <= msb */   
     324            "mtc2    %2,        $24           \n"     /* PADDR_EXT <= msb */
    316325            "sw      %0,        0(%1)         \n"     /* *paddr <= value  */
    317             "mtc2    $0,        $24           \n"     /* PADDR_EXT <= 0   */   
    318 
    319             "li      $3,        0x00000001    \n"
    320             "mfc0    $2,        $12           \n"
    321             "or      $3,        $2, $3        \n"
    322             "mtc0    $3,        $12           \n"     /* IRQ enabled      */
     326            "mtc2    $0,        $24           \n"     /* PADDR_EXT <= 0   */
     327
     328            "sync                             \n"
    323329            :
    324             : "r" (word), "r" (address), "r" (cluster)
    325             : "$2", "$3");
     330            : "r" (word), "r" (address), "r" (cluster), "r" (sr)
     331            : "$2", "$3", "memory");
     332
     333    _sr_write(sr);
    326334}
    327335////////////////////////////////////////////////////////////////////////////
    328 // This function makes a physical write access to single byte in memory, 
     336// This function makes a physical write access to single byte in memory,
    329337// after a temporary DTLB de-activation and address extension.
    330338////////////////////////////////////////////////////////////////////////////
    331 in_drivers void _byte_extended_write( unsigned int  cluster, 
     339in_drivers void _byte_extended_write( unsigned int  cluster,
    332340                                      unsigned int  address,
    333                                       unsigned char byte )
    334 {
     341                                      unsigned char byte )
     342{
     343    int sr = _sr_read();
    335344    asm volatile(
    336345            "li      $3,        0xFFFFFFFE    \n"
    337             "mfc0    $2,        $12           \n"
    338             "and     $3,        $2, $3        \n"
     346            "and     $3,        %3,     $3    \n"
    339347            "mtc0    $3,        $12           \n"     /* IRQ disabled     */
    340348
    341             "mtc2    %2,        $24           \n"     /* PADDR_EXT <= msb */   
     349            "mtc2    %2,        $24           \n"     /* PADDR_EXT <= msb */
    342350            "sb      %0,        0(%1)         \n"     /* *paddr <= value  */
    343             "mtc2    $0,        $24           \n"     /* PADDR_EXT <= 0   */   
    344 
    345             "li      $3,        0x00000001    \n"
    346             "mfc0    $2,        $12           \n"
    347             "or      $3,        $2, $3        \n"
    348             "mtc0    $3,        $12           \n"     /* IRQ enabled      */
     351            "mtc2    $0,        $24           \n"     /* PADDR_EXT <= 0   */
     352
     353            "sync                             \n"
    349354            :
    350             : "r" (byte), "r" (address), "r" (cluster)
    351             : "$2", "$3");
    352 }
    353 
    354 ///////////////////////////////////////////////////////////////////////////////////////
    355 // Exit (suicide) after printing message on TTY0
     355            : "r" (byte), "r" (address), "r" (cluster), "r" (sr)
     356            : "$2", "$3", "memory");
     357
     358    _sr_write(sr);
     359}
     360
     361///////////////////////////////////////////////////////////////////////////////////////
     362// Exit (suicide) after printing message on TTY0
    356363///////////////////////////////////////////////////////////////////////////////////////
    357364in_drivers void _exit()
     
    410417//  - If there is only one terminal, it is supposed to be shared, and used by
    411418//    all processors: a lock must be taken before display.
    412 //  - If there is several terminals, and the number of processors is smaller 
    413 //    than the number of terminals, there is one terminal per processor, but 
     419//  - If there is several terminals, and the number of processors is smaller
     420//    than the number of terminals, there is one terminal per processor, but
    414421//    the TTY index is not equal to the proc_id, due to cluster indexing policy:
    415422//    proc_id = cluster_xy * NB_PROCS_MAX + local_id (with cluster_xy = x << Y_WIDTH + y)
    416423//    tty_id  = cluster_id * NB_PROCS_MAX + local_id (with cluster_id = x * Y_SIZE + y)
    417424//  - If the computed tty_id is larger than NB_TTY_CHANNELS, an error is returned.
    418 ///////////////////////////////////////////////////////////////////////////////////////
    419 //  If USE_EXT_IO is set, we use the TTY controler implemented in cluster_io
    420 //  (x = X_SIZE-1 / y = Y_SIZE), which requires and extended address access.
    421 //  If USE_EXT_IO not set, we use the single channel TTY contrÃŽler in cluster (0,0).
    422425///////////////////////////////////////////////////////////////////////////////////////
    423426
     
    430433// returns  the number of characters that have been actually written.
    431434///////////////////////////////////////////////////////////////////////////////////////
    432 in_drivers int _tty_write( char*           buffer, 
    433                            unsigned int    length, 
     435in_drivers int _tty_write( char*           buffer,
     436                           unsigned int    length,
    434437                           unsigned int    channel )
    435438{
    436     unsigned int    base       = (unsigned int)&seg_tty_base + channel*TTY_SPAN*4;
    437     unsigned int    nwritten   = 0;
    438     unsigned int    cluster_io = ((X_SIZE-1)<<Y_WIDTH) + Y_SIZE;
     439    unsigned int    base     = (unsigned int)&seg_tty_base + channel*TTY_SPAN*4;
     440    unsigned int    nwritten = 0;
    439441    unsigned int    status;
    440     unsigned int        i;
     442    unsigned int    i;
    441443
    442444    for ( i=0 ; i < length ; i++ )
    443445    {
    444         if( USE_EXT_IO )    // extended addressing to reach cluster_io
     446        status = _word_extended_read( CLUSTER_IO, base + TTY_STATUS*4 );
     447        if ( (status & 0x2) == 0x2 ) break;
     448        else
    445449        {
    446             status = _word_extended_read( cluster_io, base + TTY_STATUS*4 );
    447             if ( (status & 0x2) == 0x2 ) break;
    448             else
    449             {
    450                 _byte_extended_write( cluster_io, base + TTY_WRITE*4 , buffer[i] );
    451                 nwritten++;
    452             }
    453         }
    454         else                // direct addressing to cluster(0,0)
    455         {
    456             char* tty = (char*)base;
    457             if ( (tty[TTY_STATUS*4] & 0x2) == 0x2 )  break;
    458             else
    459             {
    460                 tty[TTY_WRITE*4] = buffer[i]; // write character
    461                 nwritten++;
    462             }
     450            _byte_extended_write( CLUSTER_IO, base + TTY_WRITE*4 , buffer[i] );
     451            nwritten++;
    463452        }
    464453    }
     
    474463// and returns 1 if the register is full.
    475464///////////////////////////////////////////////////////////////////////////////////////
    476 in_drivers int _tty_read( char*          buffer, 
     465in_drivers int _tty_read( char*          buffer,
    477466                          unsigned int   channel )
    478467{
    479     unsigned int    base       = (unsigned int)&seg_tty_base + channel*TTY_SPAN*4;
    480     unsigned int    cluster_io = ((X_SIZE-1)<<Y_WIDTH) + Y_SIZE;
    481     unsigned int    status;
    482 
    483     if( USE_EXT_IO )
    484     {
    485         status = _word_extended_read( cluster_io, base + TTY_STATUS*4 );
    486         if ( (status & 0x1) == 0x1 )
    487         {
    488             buffer[0] = (char)_word_extended_read( cluster_io, base + TTY_READ*4 );
    489             return 1;
    490         }
    491         else
    492         {
    493             return 0;
    494         }
    495     }
    496     else
    497     {
    498         char* tty = (char*)base;
    499 
    500         if((tty[TTY_STATUS*4] & 0x1) == 0x1)
    501         {
    502             buffer[0] = tty[TTY_READ*4];
    503             return 1;
    504         }
    505         else
    506         {
    507             return 0;
    508         }
    509     }
     468    unsigned int base    = (unsigned int)&seg_tty_base + channel*TTY_SPAN*4;
     469    unsigned int status;
     470
     471    status = _word_extended_read( CLUSTER_IO, base + TTY_STATUS*4 );
     472    if ( (status & 0x1) == 0x1 )
     473    {
     474        buffer[0] = (char)_word_extended_read( CLUSTER_IO, base + TTY_READ*4 );
     475        return 1;
     476    }
     477    return 0;
    510478}
    511479
     
    524492// This function displays a 32 bits unsigned int as an hexa string on TTY0.
    525493///////////////////////////////////////////////////////////////////////////////
    526 in_drivers void _tty_putx(unsigned int val) 
     494in_drivers void _tty_putx(unsigned int val)
    527495{
    528496    static const char HexaTab[] = "0123456789ABCDEF";
     
    534502    buf[10] = 0;
    535503
    536     for (c = 0; c < 8; c++) 
    537     { 
     504    for (c = 0; c < 8; c++)
     505    {
    538506        buf[9 - c] = HexaTab[val & 0xF];
    539507        val = val >> 4;
     
    545513// This function displays a 32 bits unsigned int as a decimal string on TTY0.
    546514///////////////////////////////////////////////////////////////////////////////
    547 in_drivers void _tty_putd( unsigned int val ) 
     515in_drivers void _tty_putd( unsigned int val )
    548516{
    549517    static const char DecTab[] = "0123456789";
    550518    char buf[11];
    551519    unsigned int i;
    552     unsigned int first;
     520    unsigned int first = 0;
    553521
    554522    buf[10] = 0;
    555523
    556     for (i = 0; i < 10; i++) 
    557     {
    558         if ((val != 0) || (i == 0)) 
     524    for (i = 0; i < 10; i++)
     525    {
     526        if ((val != 0) || (i == 0))
    559527        {
    560528            buf[9 - i] = DecTab[val % 10];
    561529            first = 9 - i;
    562530        }
    563         else 
     531        else
    564532        {
    565533            break;
     
    571539
    572540//////////////////////////////////////////////////////////////////////////////
    573 // This function try to take the hardwired lock protecting exclusive access 
     541// This function try to take the hardwired lock protecting exclusive access
    574542// to TTY terminal identified by the channel argument.
    575543// It returns only when the lock has been successfully taken.
     
    577545in_drivers void _tty_get_lock( unsigned int channel )
    578546{
    579     if ( USE_EXT_IO )  // extended addressing to cluster_io
    580     {
    581         unsigned int    cluster_io = ((X_SIZE-1)<<Y_WIDTH) + Y_SIZE;
    582         unsigned int    address    = (unsigned int)&seg_tty_base
    583                                      + ((TTY_CONFIG + channel*TTY_SPAN)*4);
    584         while ( _word_extended_read( cluster_io, address ) ) asm volatile("nop");
    585     }
    586     else               // direct addressing to cluster(0,0)
    587     {
    588         unsigned int* tty = (unsigned int *) &seg_tty_base;
    589         while ( tty[channel * TTY_SPAN + TTY_CONFIG] ) asm volatile("nop");
    590     }
     547    unsigned int base = (unsigned int)&seg_tty_base;
     548    unsigned int offset = (TTY_CONFIG + channel*TTY_SPAN) << 2;
     549    while ( _word_extended_read( CLUSTER_IO, base + offset ) );
    591550}
    592551
    593552//////////////////////////////////////////////////////////////////////////////
    594 // This function releases the hardwired lock protecting exclusive access 
     553// This function releases the hardwired lock protecting exclusive access
    595554// to TTY terminal identified by the channel argument.
    596555//////////////////////////////////////////////////////////////////////////////
    597556in_drivers void _tty_release_lock( unsigned int channel )
    598557{
    599     if ( USE_EXT_IO )  // extended addressing to cluster_io
    600     {
    601         unsigned int    cluster_io = ((X_SIZE-1)<<Y_WIDTH) + Y_SIZE;
    602         unsigned int    address    = (unsigned int)&seg_tty_base
    603                                      + ((TTY_CONFIG + channel*TTY_SPAN)*4);
    604         _word_extended_write( cluster_io, address, 0 );
    605     }
    606     else               // direct addressing to cluster(0,0)
    607     {
    608         unsigned int* tty_address = (unsigned int *) &seg_tty_base;
    609         tty_address[channel * TTY_SPAN + TTY_CONFIG] = 0;
    610     }
     558    unsigned int base    = (unsigned int)&seg_tty_base;
     559    unsigned int offset  = (TTY_CONFIG + channel*TTY_SPAN) << 2;
     560    _word_extended_write( CLUSTER_IO, base + offset, 0 );
    611561}
    612562
     
    626576    // check TTY channel
    627577    l           = (proc_id % NB_PROCS_MAX);
    628     x           = (proc_id / NB_PROCS_MAX) >> Y_WIDTH; 
     578    x           = (proc_id / NB_PROCS_MAX) >> Y_WIDTH;
    629579    y           = (proc_id / NB_PROCS_MAX) & ((1<<Y_WIDTH) - 1);
    630580    channel = (x * Y_SIZE + y) * NB_PROCS_MAX + l;
     
    649599//  The <DEL> character is interpreted, and previous characters can be
    650600//  cancelled. All others characters are ignored.
    651 //  When the <LF> or <CR> character is received, the string is converted 
     601//  When the <LF> or <CR> character is received, the string is converted
    652602//  to an unsigned int value. If the number of decimal digit is too large
    653603//  for the 32 bits range, the zero value is returned.
     
    673623    // check TTY channel
    674624    l           = (proc_id % NB_PROCS_MAX);
    675     x           = (proc_id / NB_PROCS_MAX) >> Y_WIDTH; 
     625    x           = (proc_id / NB_PROCS_MAX) >> Y_WIDTH;
    676626    y           = (proc_id / NB_PROCS_MAX) & ((1<<Y_WIDTH) - 1);
    677627    channel = (x * Y_SIZE + y) * NB_PROCS_MAX + l;
     
    751701
    752702    // compute TTY channel :
    753     // if the number of TTY channels is smaller 
     703    // if the number of TTY channels is smaller
    754704    // than the number of clusters, use TTY_0_0
    755705    // else, TTY channel <= cluster index
     
    760710    else
    761711    {
    762         x           = (proc_id / NB_PROCS_MAX) >> Y_WIDTH; 
     712        x           = (proc_id / NB_PROCS_MAX) >> Y_WIDTH;
    763713        y           = (proc_id / NB_PROCS_MAX) & ((1<<Y_WIDTH) - 1);
    764714        channel     = (x * Y_SIZE + y);
    765715    }
    766716
    767     // take the TTY lock 
     717    // take the TTY lock
    768718    _tty_get_lock( channel );
    769719
    770720printf_text:
    771721
    772     while (*format) 
     722    while (*format)
    773723    {
    774724        unsigned int i;
    775725        for (i = 0; format[i] && format[i] != '%'; i++)
    776726            ;
    777         if (i) 
     727        if (i)
    778728        {
    779729            _tty_write( format, i, channel );
    780730            format += i;
    781731        }
    782         if (*format == '%') 
     732        if (*format == '%')
    783733        {
    784734            format++;
     
    811761                break;
    812762            case ('d'):             // decimal signed integer
    813                 if (val < 0) 
     763                if (val < 0)
    814764                {
    815765                    val = -val;
     
    817767                }
    818768            case ('u'):             // decimal unsigned integer
    819                 for( i=0 ; i<10 ; i++) 
     769                for( i=0 ; i<10 ; i++)
    820770                {
    821771                    buf[9-i] = HexaTab[val % 10];
     
    827777            case ('x'):             // hexadecimal integer
    828778                _tty_write( "0x", 2, channel );
    829                 for( i=0 ; i<8 ; i++) 
     779                for( i=0 ; i<8 ; i++)
    830780                {
    831781                    buf[7-i] = HexaTab[val % 16U];
     
    860810in_drivers void _tty_isr_indexed(size_t index)
    861811{
    862     if ( USE_EXT_IO )   // extended addressing to TTY in cluster_io
    863     {
    864         unsigned int  cluster = ((X_SIZE-1)<<Y_WIDTH) + Y_SIZE;
    865         unsigned int  base    = (unsigned int)&seg_tty_base +
    866                                 ((index*TTY_SPAN + TTY_READ)*4);
    867 
    868         _tty_get_buf[index] = (char)_word_extended_read( cluster, base );
    869     }
    870     else                // direct addressing to TTY in cluster(0,0)
    871     {
    872         char* tty = (char*)&seg_tty_base + index*TTY_SPAN*4;
    873 
    874         _tty_get_buf[index] = tty[TTY_READ*4];  // save character and reset IRQ
    875     }
     812    unsigned int base = (unsigned int)&seg_tty_base;
     813    unsigned int offset = (index*TTY_SPAN + TTY_READ) << 2;
     814
     815    _tty_get_buf[index] = _byte_extended_read(CLUSTER_IO, base + offset);
    876816    _tty_get_full[index] = 1;               // signals character available
    877817}
     
    917857//////////////////////////////////////////////////////////////////////////////////////////
    918858// The block size is 512 bytes.
    919 // The functions below use the three variables _ioc_lock _ioc_done, 
     859// The functions below use the three variables _ioc_lock _ioc_done,
    920860// and _ioc_status for synchronisation.
    921861// - As the IOC component can be used by several programs running in parallel,
    922862// the _ioc_lock variable guaranties exclusive access to the device.
    923863// The _ioc_read() and _ioc_write() functions use atomic LL/SC to get the lock.
    924 // and set _ioc_lock to a non zero value. 
     864// and set _ioc_lock to a non zero value.
    925865// The _ioc_write() and _ioc_read() functions are blocking, polling the _ioc_lock
    926866// variable until the device is available.
     
    932872// reset the _ioc_done variable to zero, and releases the _ioc_lock variable.
    933873///////////////////////////////////////////////////////////////////////////////////////
    934 //  If USE_EXT_IO is set, we use the IOC controler implemented in cluster_io
    935 //  (x = X_SIZE-1 / y = Y_SIZE), which requires and extended address access.
    936 //  If USE_EXT_IO not set, we use the IOC contrÃŽler in cluster (0,0).
    937 //
    938 //  If USE_RAMDISK is set, we access a "virtual" block device controler  implemented
     874//  If USE_RAMDISK is set, we access a "virtual" block device controler  implemented
    939875//  as a memory-mapped segment in cluster [0,0] at address seg_ramdisk_base.
    940876//  The tranfer being fully synchronous, the IOC interrupt is not activated.
     
    942878
    943879///////////////////////////////////////////////////////////////////////////////////////
    944 // This blocking function is used by the _ioc_read() and _ioc_write() functions 
     880// This blocking function is used by the _ioc_read() and _ioc_write() functions
    945881// to get _ioc_lock using LL/SC.
    946882///////////////////////////////////////////////////////////////////////////////////////
    947883in_drivers void _ioc_get_lock()
    948884{
    949     register unsigned int*      plock = (unsigned int*)&_ioc_lock;                     
    950 
    951     asm volatile ("_ioc_llsc:                       \n"
    952                   "ll   $2,    0(%0)                \n" // $2 <= _ioc_lock
    953                   "bnez $2,    _ioc_llsc            \n" // retry  if busy
    954                   "li   $3,    1                    \n" // prepare argument for sc 
    955                   "sc   $3,    0(%0)                \n" // try to set _ioc_busy
    956                   "beqz $3,    _ioc_llsc            \n" // retry if not atomic
    957                   ::"r"(plock):"$2","$3");
     885    register unsigned int*  plock = (unsigned int*)&_ioc_lock;
     886
     887    asm volatile (
     888            "1:                         \n"
     889            "ll     $2,     0(%0)       \n" // $2 <= _ioc_lock
     890            "bnez   $2,     1b          \n" // retry  if busy
     891            "li     $3,     1           \n" // prepare argument for sc
     892            "sc     $3,     0(%0)       \n" // try to set _ioc_busy
     893            "beqz   $3,     1b          \n" // retry if not atomic
     894            ::"r"(plock) :"$2","$3");
    958895}
    959896
     
    965902// - ext    : cluster index for the memory buffer
    966903///////////////////////////////////////////////////////////////////////////////////////
    967 in_drivers void _ioc_write( size_t   lba, 
    968                             void*    buffer, 
     904in_drivers void _ioc_write( size_t   lba,
     905                            void*    buffer,
    969906                            size_t   count,
    970907                            size_t   ext )
     
    985922                          src_address,
    986923                          count*512 );
    987        
     924
    988925        _ioc_status = BLOCK_DEVICE_WRITE_SUCCESS;
    989926        _ioc_done   = 1;
    990     }
    991     else if ( USE_EXT_IO )   // extended addressing to cluster_io
    992     {
    993         unsigned int    cluster = ((X_SIZE-1)<<Y_WIDTH) + Y_SIZE;
    994         unsigned int    base    = (unsigned int)&seg_ioc_base;
    995 
    996         _word_extended_write( cluster, base + BLOCK_DEVICE_BUFFER*4,     (unsigned int)buffer );
    997         _word_extended_write( cluster, base + BLOCK_DEVICE_BUFFER_EXT*4, ext );
    998         _word_extended_write( cluster, base + BLOCK_DEVICE_COUNT*4,      count );
    999         _word_extended_write( cluster, base + BLOCK_DEVICE_LBA*4,        lba );
    1000         _word_extended_write( cluster, base + BLOCK_DEVICE_IRQ_ENABLE*4, 1 );
    1001         _word_extended_write( cluster, base + BLOCK_DEVICE_OP*4,         BLOCK_DEVICE_WRITE );
    1002     }
    1003     else                // direct addressing to cluster(0,0)
    1004     {
    1005         unsigned int* ioc = (unsigned int*)&seg_ioc_base;
    1006 
    1007         ioc[BLOCK_DEVICE_BUFFER]     = (unsigned int)buffer;
    1008         ioc[BLOCK_DEVICE_BUFFER_EXT] = ext;
    1009         ioc[BLOCK_DEVICE_COUNT]      = count;
    1010         ioc[BLOCK_DEVICE_LBA]        = lba;
    1011         ioc[BLOCK_DEVICE_IRQ_ENABLE] = 1;
    1012         ioc[BLOCK_DEVICE_OP]         = BLOCK_DEVICE_WRITE;
    1013     }
     927
     928        return;
     929    }
     930
     931    unsigned int base = (unsigned int)&seg_ioc_base;
     932    _word_extended_write( CLUSTER_IO, base + BLOCK_DEVICE_BUFFER*4,     (unsigned int)buffer );
     933    _word_extended_write( CLUSTER_IO, base + BLOCK_DEVICE_BUFFER_EXT*4, ext );
     934    _word_extended_write( CLUSTER_IO, base + BLOCK_DEVICE_COUNT*4,      count );
     935    _word_extended_write( CLUSTER_IO, base + BLOCK_DEVICE_LBA*4,        lba );
     936    _word_extended_write( CLUSTER_IO, base + BLOCK_DEVICE_IRQ_ENABLE*4, 1 );
     937    _word_extended_write( CLUSTER_IO, base + BLOCK_DEVICE_OP*4,         BLOCK_DEVICE_WRITE );
    1014938}
    1015939
     
    1021945// - ext    : cluster index for the memory buffer
    1022946///////////////////////////////////////////////////////////////////////////////////////
    1023 in_drivers void _ioc_read( size_t   lba, 
    1024                            void*    buffer, 
     947in_drivers void _ioc_read( size_t   lba,
     948                           void*    buffer,
    1025949                           size_t   count,
    1026950                           size_t   ext )
     
    1044968        _ioc_status = BLOCK_DEVICE_READ_SUCCESS;
    1045969        _ioc_done   = 1;
    1046     }
    1047     else if ( USE_EXT_IO )   // extended addressing to cluster_io
    1048     {
    1049         unsigned int    cluster = ((X_SIZE-1)<<Y_WIDTH) + Y_SIZE;
    1050         unsigned int    base    = (unsigned int)&seg_ioc_base;
    1051 
    1052         _word_extended_write( cluster, base + BLOCK_DEVICE_BUFFER*4,     (unsigned int)buffer );
    1053         _word_extended_write( cluster, base + BLOCK_DEVICE_BUFFER_EXT*4, ext );
    1054         _word_extended_write( cluster, base + BLOCK_DEVICE_COUNT*4,      count );
    1055         _word_extended_write( cluster, base + BLOCK_DEVICE_LBA*4,        lba );
    1056         _word_extended_write( cluster, base + BLOCK_DEVICE_IRQ_ENABLE*4, 1 );
    1057         _word_extended_write( cluster, base + BLOCK_DEVICE_OP*4,         BLOCK_DEVICE_READ );
    1058     }
    1059     else                // direct addressing to cluster(0,0)
    1060     {
    1061         unsigned int* ioc = (unsigned int*)&seg_ioc_base;
    1062 
    1063         ioc[BLOCK_DEVICE_BUFFER]     = (unsigned int)buffer;
    1064         ioc[BLOCK_DEVICE_BUFFER_EXT] = ext;
    1065         ioc[BLOCK_DEVICE_COUNT]      = count;
    1066         ioc[BLOCK_DEVICE_LBA]        = lba;
    1067         ioc[BLOCK_DEVICE_IRQ_ENABLE] = 1;
    1068         ioc[BLOCK_DEVICE_OP]         = BLOCK_DEVICE_READ;
    1069     }
     970
     971        return;
     972    }
     973
     974    const unsigned int base = (unsigned int)&seg_ioc_base;
     975    _word_extended_write( CLUSTER_IO, base + BLOCK_DEVICE_BUFFER*4,     (unsigned int)buffer );
     976    _word_extended_write( CLUSTER_IO, base + BLOCK_DEVICE_BUFFER_EXT*4, ext );
     977    _word_extended_write( CLUSTER_IO, base + BLOCK_DEVICE_COUNT*4,      count );
     978    _word_extended_write( CLUSTER_IO, base + BLOCK_DEVICE_LBA*4,        lba );
     979    _word_extended_write( CLUSTER_IO, base + BLOCK_DEVICE_IRQ_ENABLE*4, 1 );
     980    _word_extended_write( CLUSTER_IO, base + BLOCK_DEVICE_OP*4,         BLOCK_DEVICE_READ );
     981}
     982
     983in_drivers inline unsigned int _ioc_get_blocksize() {
     984    const unsigned int base = (unsigned int)&seg_ioc_base;
     985    return _word_extended_read( CLUSTER_IO, base + BLOCK_DEVICE_BLOCK_SIZE*4 );
    1070986}
    1071987
     
    1078994{
    1079995    // waiting for completion
    1080     while (_ioc_done == 0)  asm volatile("nop"); 
    1081    
     996    while (_ioc_done == 0)  asm volatile("nop");
     997
    1082998    // reset synchronisation variables
    1083999    _ioc_done = 0;
     
    11021018in_drivers void _ioc_isr()
    11031019{
    1104     if ( USE_EXT_IO )  // extended addressing to cluster_io
    1105     {
    1106         unsigned int    cluster = ((X_SIZE-1)<<Y_WIDTH) + Y_SIZE;
    1107         unsigned int    base    = (unsigned int)&seg_ioc_base;
    1108 
    1109         _ioc_status = _word_extended_read( cluster, base + BLOCK_DEVICE_STATUS*4 );
    1110     }
    1111     else               // direct addressing to cluster(à,0)
    1112     {
    1113         unsigned int* ioc = (unsigned int*)&seg_ioc_base;
    1114    
    1115         _ioc_status = ioc[BLOCK_DEVICE_STATUS]; // save status & reset IRQ
    1116     }
    1117     _ioc_done   = 1;       // signals completion
     1020    unsigned int base = (unsigned int)&seg_ioc_base;
     1021
     1022    _ioc_status = _word_extended_read( CLUSTER_IO, base + BLOCK_DEVICE_STATUS*4 );
     1023    _ioc_done   = 1;       // signals completion
    11181024}
    11191025
     
    11211027//  FRAME_BUFFER
    11221028//////////////////////////////////////////////////////////////////////////////////////
    1123 // The _fb_sync_write & _fb_sync_read functions use a memcpy strategy to implement 
     1029// The _fb_sync_write & _fb_sync_read functions use a memcpy strategy to implement
    11241030// the transfer between a data buffer and the frame buffer.
    11251031// They are blocking until completion of the transfer.
     
    11341040// - ext    : cluster_xy for the user buffer
    11351041//////////////////////////////////////////////////////////////////////////////////////
    1136 in_drivers void _fb_sync_write( unsigned int  offset, 
    1137                                 unsigned int  buffer, 
     1042in_drivers void _fb_sync_write( unsigned int  offset,
     1043                                unsigned int  buffer,
    11381044                                unsigned int  length,
    11391045                                unsigned int  ext )
     
    11421048    unsigned int  src_cluster = ext;
    11431049    unsigned int  dst_address = (unsigned int)&seg_fbf_base + offset;
    1144     unsigned int  dst_cluster = ((X_SIZE-1)<<Y_WIDTH) + Y_SIZE;  // cluster_xy for I/O
    1145 
    1146     _extended_memcpy( dst_cluster,
     1050
     1051    _extended_memcpy( CLUSTER_IO,
    11471052                      dst_address,
    11481053                      src_cluster,
     
    11591064// - ext    : cluster_xy for the user buffer
    11601065//////////////////////////////////////////////////////////////////////////////////////
    1161 in_drivers void  _fb_sync_read( unsigned int  offset, 
    1162                                 unsigned int  buffer, 
     1066in_drivers void  _fb_sync_read( unsigned int  offset,
     1067                                unsigned int  buffer,
    11631068                                unsigned int  length,
    11641069                                unsigned int  ext )
     
    11671072    unsigned int  dst_cluster = ext;
    11681073    unsigned int  src_address = (unsigned int)&seg_fbf_base + offset;
    1169     unsigned int  src_cluster = ((X_SIZE-1)<<Y_WIDTH) + Y_SIZE;  // cluster_xy for I/O
    11701074
    11711075    _extended_memcpy( dst_cluster,
    11721076                      dst_address,
    1173                       src_cluster,
     1077                      CLUSTER_IO,
    11741078                      src_address,
    11751079                      length );
     
    11841088in_drivers void _mmc_isr()
    11851089{
    1186     int*         mmc_address = (int*)&seg_mmc_base;
     1090    //int*         mmc_address = (int*)&seg_mmc_base;
    11871091    unsigned int cluster_xy  = _procid() / NB_PROCS_MAX;
    1188    
     1092
    11891093    _tty_printf( "WRITE ERROR signaled by Memory Cache in cluster %x\n", cluster_xy );
    11901094}
    11911095
    11921096///////////////////////////////////////////////////////////////////////////////////////
    1193 // Release a software spin-lock 
     1097// Release a software spin-lock
    11941098///////////////////////////////////////////////////////////////////////////////////////
    11951099in_drivers void _release_lock(size_t index)
    11961100
    11971101{
    1198     if( index >= NB_LOCKS ) 
     1102    if( index >= NB_LOCKS )
    11991103    {
    12001104        _tty_get_lock( 0 );
     
    12031107        _exit();
    12041108    }
    1205    
     1109
    12061110    _spin_lock[index] = 0;
    12071111}
     
    12251129
    12261130    register int   delay = ((_proctime() +_procid()) & 0xF) << 4;
    1227     register int * plock = (int *) &_spin_lock[index];                 
    1228 
    1229     asm volatile ("_locks_llsc:                 \n"
    1230                   "ll   $2,    0(%0)            \n"     // $2 <= _locks_lock
    1231                   "bnez $2,    _locks_delay     \n"     // random delay if busy
    1232                   "li   $3,    1            \n"     // prepare argument for sc 
    1233                   "sc   $3,    0(%0)            \n"     // try to set _locks_busy
    1234                   "bnez $3,    _locks_ok    \n"     // exit if atomic 
     1131    register int * plock = (int *) &_spin_lock[index];
     1132
     1133    asm volatile ("_locks_llsc:             \n"
     1134                  "ll   $2,    0(%0)        \n"     // $2 <= _locks_lock
     1135                  "bnez $2,    _locks_delay \n"     // random delay if busy
     1136                  "li   $3,    1            \n"     // prepare argument for sc
     1137                  "sc   $3,    0(%0)        \n"     // try to set _locks_busy
     1138                  "bnez $3,    _locks_ok    \n"     // exit if atomic
    12351139                  "_locks_delay:            \n"
    12361140                  "move $4,    %1           \n"     // $4 <= delay
     
    12391143                  "beqz $4,    _locks_loop  \n"     // test end delay
    12401144                  "j           _locks_llsc  \n"     // retry
    1241                   "_locks_ok:                   \n"
     1145                  "_locks_ok:           \n"
    12421146                  ::"r"(plock),"r"(delay):"$2","$3","$4");
    12431147}
     
    12481152// - barrier_count[index] <= N
    12491153// - barrier_lock[index]  <= 0
    1250 // All tasks try to initialize the barrier, but the initialisation 
     1154// All tasks try to initialize the barrier, but the initialisation
    12511155// is done by only one task, using LL/SC instructions.
    1252 // This cooperative initialisation is questionnable, 
     1156// This cooperative initialisation is questionnable,
    12531157// because the barrier can ony be initialised once...
    12541158//////////////////////////////////////////////////////////////////////////////////////
    12551159in_drivers void _barrier_init(unsigned int index, unsigned int value)
    12561160{
    1257 
    1258     register int* pinit         = (int*)&_barrier_value[index];
    1259     register int* pcount        = (int*)&_barrier_count[index];
    1260     register int* plock         = (int*)&_barrier_lock[index];
     1161    register int* pinit     = (int*)&_barrier_value[index];
     1162    register int* pcount    = (int*)&_barrier_count[index];
     1163    register int* plock     = (int*)&_barrier_lock[index];
    12611164
    12621165    if ( index >= NB_BARRIERS )
     
    12691172
    12701173    // parallel initialisation using atomic instructions LL/SC
    1271     asm volatile ("_barrier_init_test:                  \n"
    1272                   "ll   $2,     0(%0)                   \n"     // read barrier_value
    1273                   "bnez $2,     _barrier_init_done      \n"
    1274                   "move $3,     %3                              \n"
    1275                   "sc   $3,     0(%0)                   \n"     // try to write barrier_value
    1276                   "beqz $3,     _barrier_init_test      \n"
    1277                   "move $3,     %3                                  \n"
    1278                   "sw   $3,     0(%1)                           \n"     // barrier_count <= barrier_value
    1279                   "move $3, $0                      \n" // 
    1280                   "sw   $3,     0(%2)                           \n"     // barrier_lock <= 0
    1281                   "_barrier_init_done:                  \n"
     1174    asm volatile ("_barrier_init_test:              \n"
     1175                  "ll   $2,     0(%0)               \n" // read barrier_value
     1176                  "bnez $2,     _barrier_init_done  \n"
     1177                  "move $3,     %3                  \n"
     1178                  "sc   $3,     0(%0)               \n" // try to write barrier_value
     1179                  "beqz $3,     _barrier_init_test  \n"
     1180                  "move $3, %3                      \n"
     1181                  "sw   $3, 0(%1)                   \n" // barrier_count <= barrier_value
     1182                  "move $3, $0                      \n" //
     1183                  "sw   $3, 0(%2)                   \n" // barrier_lock <= 0
     1184                  "_barrier_init_done:          \n"
    12821185                  ::"r"(pinit),"r"(pcount),"r"(plock),"r"(value):"$2","$3");
    12831186}
    12841187
    12851188//////////////////////////////////////////////////////////////////////////////////////
    1286 // This blocking function uses a busy_wait technics (on the barrier_lock value), 
    1287 // because the GIET does not support dynamic scheduling/descheduling of tasks. 
     1189// This blocking function uses a busy_wait technics (on the barrier_lock value),
     1190// because the GIET does not support dynamic scheduling/descheduling of tasks.
    12881191// The barrier state is actually defined by two variables:
    12891192// _barrier_count[index] define the number of particpants that are waiting
    1290 // _barrier_lock[index] define the bool variable whose value is polled 
     1193// _barrier_lock[index] define the bool variable whose value is polled
    12911194// The last participant change the value of _barrier_lock[index] to release the barrier...
    12921195// There is at most 16 independant barriers, and an error is returned
     
    12951198in_drivers void _barrier_wait(unsigned int index)
    12961199{
    1297     register int*       pcount          = (int*)&_barrier_count[index];         
    1298     register int        count;
    1299 
    1300     int                lock             = _barrier_lock[index];         
     1200    register int*   pcount      = (int*)&_barrier_count[index];
     1201    register int    count;
     1202    int             lock        = _barrier_lock[index];
    13011203
    13021204    if ( index >= NB_BARRIERS )
     
    13071209        _exit();
    13081210    }
    1309    
     1211
    13101212    // parallel decrement _barrier_count[index] using atomic instructions LL/SC
    13111213    // input : pointer on _barrier_count[index]
    13121214    // output : count = _barrier_count[index] (before decrementation)
    1313     asm volatile ("_barrier_decrement:                          \n"
    1314                   "ll   %0,     0(%1)                           \n"
    1315                   "addi $3,     %0,     -1                      \n"
    1316                   "sc   $3,     0(%1)                           \n"
    1317                   "beqz $3,     _barrier_decrement              \n"
     1215    asm volatile ("_barrier_decrement:                  \n"
     1216                  "ll   %0,     0(%1)                   \n"
     1217                  "addi $3,     %0,     -1              \n"
     1218                  "sc   $3,     0(%1)                   \n"
     1219                  "beqz $3,     _barrier_decrement      \n"
    13181220                  :"=&r"(count)
    13191221                  :"r"(pcount)
     
    13231225    // and the barrier_lock variable, waking up all other waiting tasks
    13241226
    1325     if ( count == 1 )   // last task
     1227    if ( count == 1 )   // last task
    13261228    {
    13271229        _barrier_count[index] = _barrier_value[index];
     
    13291231        _barrier_lock[index]   = (lock == 0) ? 1 : 0;
    13301232    }
    1331     else                // other tasks
    1332     {
    1333         while ( lock == _barrier_lock[index] )  asm volatile("nop");
    1334     }
    1335 } 
     1233    else        // other tasks
     1234    {
     1235        while ( lock == _barrier_lock[index] );
     1236    }
     1237}
    13361238
    13371239
  • branches/fault_tolerance/softs/giet_tsar/stdio.h

    r724 r745  
    11////////////////////////////////////////////////////////////////////////////////////////
    22// File : stdio.h
    3 // Written by Alain Greiner 
     3// Written by Alain Greiner
    44// Date : 17/01/2014
    55//
     
    4040typedef unsigned int    size_t;
    4141
    42 // global variables defined in stdio.c
     42// constants
    4343
    44 extern  int volatile    _ioc_lock;
    45 extern  int volatile    _ioc_done;
    46 extern  int volatile    _ioc_status;
    47 
    48 extern  char volatile   _tty_get_buf[];
    49 extern  int volatile    _tty_get_full[];
    50 
    51 extern int volatile     _barrier_value[];
    52 extern int volatile     _barrier_count[];
    53 extern int volatile     _barrier_lock[];
    54 
    55 extern int volatile     _spin_lock[];
     44#define CLUSTER_IO (((X_IO) << (Y_WIDTH)) | (Y_IO))
    5645
    5746// functions defined in stdio.c
     
    6453                                  unsigned int src_address,
    6554                                  unsigned int length );
    66 unsigned int    _procid();
    67 unsigned int    _proctime();
    68 unsigned int    _procnumber();
     55inline unsigned int _procid();
     56inline unsigned int _proctime();
     57inline unsigned int _procnumber();
     58
     59inline unsigned int _io_cluster();
    6960
    7061unsigned int    _rand();
     
    7263void            _it_mask();
    7364void            _it_enable();
     65
     66int             _sr_read();
     67void            _sr_write(int sr);
    7468
    7569void            _dcache_buf_invalidate( const void* buffer, size_t size );
     
    9589void            _ioc_write( size_t lba, void* buffer, size_t count, size_t ext );
    9690void            _ioc_read (size_t lba, void* buffer, size_t count, size_t ext );
     91unsigned int    _ioc_get_blocksize();
    9792void            _ioc_completed();
    9893void            _ioc_isr();
     
    10095void            _mmc_isr();
    10196
    102 void            _fb_sync_write( unsigned int offset, 
     97void            _fb_sync_write( unsigned int offset,
    10398                                unsigned int buffer,
    10499                                unsigned int length,
    105100                                unsigned int ext );
    106 void            _fb_sync_read(  unsigned int offset, 
     101void            _fb_sync_read(  unsigned int offset,
    107102                                unsigned int buffer,
    108103                                unsigned int length,
     
    115110void            _barrier_wait(size_t index);
    116111
    117 unsigned char   _byte_extended_read(  unsigned int   cluster,
    118                                       unsigned int   address );
    119 unsigned int    _word_extended_read(  unsigned int   cluster,
    120                                       unsigned int   address );
    121 void            _word_extended_write( unsigned int   cluster,
    122                                       unsigned int   address,
     112volatile unsigned char _byte_extended_read( unsigned int cluster,
     113                                            unsigned int address );
     114volatile unsigned int  _word_extended_read( unsigned int cluster,
     115                                            unsigned int address );
     116
     117void            _word_extended_write( unsigned int   cluster,
     118                                      unsigned int   address,
    123119                                      unsigned int   word );
    124 void            _byte_extended_write( unsigned int   cluster, 
    125                                       unsigned int   address, 
     120void            _byte_extended_write( unsigned int   cluster,
     121                                      unsigned int   address,
    126122                                      unsigned char  byte );
    127123#endif
  • branches/fault_tolerance/softs/soft_sort_giet/Makefile

    r724 r745  
    44DU = mipsel-unknown-elf-objdump
    55
    6 OBJS =   reset.o \
    7          giet.o \
    8          stdio.o \
    9          main.o
     6OBJS = reset.o \
     7       giet.o \
     8       stdio.o \
     9       main.o
    1010
    11 CFLAGS = -Wall -mno-gpopt -ffreestanding -fomit-frame-pointer -mips32 -ggdb
     11CFLAGS = -Wall -mno-gpopt -ffreestanding -fomit-frame-pointer -mips32
    1212
    1313GIET =  ../giet_tsar
  • branches/fault_tolerance/softs/soft_transpose_giet/Makefile

    r724 r745  
    44DU = mipsel-unknown-elf-objdump
    55
    6 OBJS =   reset.o \
    7          giet.o \
    8          stdio.o \
    9          main.o
     6OBJS = reset.o \
     7       giet.o \
     8       stdio.o \
     9       main.o
    1010
    11 CFLAGS = -Wall -mno-gpopt -ffreestanding -fomit-frame-pointer -mips32 -ggdb
     11CFLAGS = -Wall -mno-gpopt -ffreestanding -fomit-frame-pointer -mips32 \
     12         -msoft-float -O2 \
     13         # -ggdb -mlong-calls
    1214
    1315GIET =  ../giet_tsar
     
    1820
    1921reset.o: $(GIET)/reset.S hard_config.h
    20         $(CC) -I. $(CFLAGS) -c -o $@ $<
     22        $(CC) -I. -I$(GIET) $(CFLAGS) -c -o $@ $<
    2123        $(DU) -D $@ > $@.txt
    2224
  • branches/fault_tolerance/softs/soft_transpose_giet/hard_config.h

    r724 r745  
    77#define _HARD_CONFIG_H
    88
    9 #define  X_SIZE              2
    10 #define  Y_SIZE              2
     9#define  X_SIZE              6
     10#define  Y_SIZE              6
    1111#define  X_WIDTH             4
    1212#define  Y_WIDTH             4
     13#define  X_IO                0//(X_SIZE - 1)
     14#define  Y_IO                0//(Y_SIZE - 1)
    1315
    14 #define  NB_PROCS_MAX        1
     16#define  NB_PROCS_MAX        4
    1517
    16 #define  USE_RAMDISK         1
    17 #define  USE_EXT_IO          0
     18#define  USE_RAMDISK         0
     19#define  USE_PIC             1
    1820
    1921#define  NB_DMA_CHANNELS     0
     
    2123#define  NB_NIC_CHANNELS     0
    2224#define  NB_CMA_CHANNELS     0
    23 
    2425#define  NB_TTY_CHANNELS     1
    2526
  • branches/fault_tolerance/softs/soft_transpose_giet/ldscript

    r724 r745  
    1010peripherals are not present in the architecture */
    1111
    12 seg_reset_base   = 0x00000000;       /* boot code                   */
     12seg_reset_base   = 0xBFC00000;       /* boot code                   */
    1313
    1414seg_kcode_base   = 0x00010000;       /* kernel code                 */
     
    2020
    2121seg_heap_base    = 0x00100000;       /* heaps for applications      */
    22 seg_stack_base   = 0x00300000;       /* stacks ifor applications    */
     22seg_stack_base   = 0x00300000;       /* stacks for applications     */
    2323
    24 seg_ramdisk_base = 0x00800000;       /* virtual disk                */
     24seg_ramdisk_base = 0xFFFFFFFF;       /* virtual disk                */
    2525
    26 seg_xcu_base     = 0xF0000000;       /* controler XCU               */
    27 seg_tty_base     = 0xF4000000;       /* controler TTY               */
    28 seg_fbf_base     = 0xF3000000;       /* controler FBF               */
    29 seg_ioc_base     = 0xF2000000;       /* controler IOC               */
    30 seg_nic_base     = 0xF7000000;       /* controler NIC               */
    31 seg_cma_base     = 0xF8000000;       /* controler CMA               */
    32 seg_pic_base     = 0xF9000000;       /* controler PIC               */
    33 seg_mmc_base     = 0xE0000000;       /* config    MMC               */
     26seg_xcu_base     = 0xB0000000;       /* XCU controller              */
     27seg_dma_base     = 0xB1000000;       /* DMA controller              */
     28seg_mmc_base     = 0xB2000000;       /* config    MMC               */
     29seg_ioc_base     = 0xB3000000;       /* IOC controller              */
     30seg_tty_base     = 0xB4000000;       /* TTY controller              */
     31seg_nic_base     = 0xB5000000;       /* NIC controller              */
     32seg_cma_base     = 0xB6000000;       /* CMA controller              */
     33seg_fbf_base     = 0xB7000000;       /* FBF controller              */
     34seg_pic_base     = 0xB8000000;       /* PIC controller              */
    3435
     36ENTRY(reset)
    3537
    3638/* Grouping sections into segments */
     
    6062   seg_code : {
    6163      *(.text)
     64      *(.text.*)
    6265   }
    6366   . = seg_reset_base;
  • branches/fault_tolerance/softs/soft_transpose_giet/main.c

    r724 r745  
    1212#define PRINTF(...)      ({ if (lpid == 0) { _tty_printf(__VA_ARGS__); } })
    1313
    14 #define DISPLAY_OK          1   // enable display on frame buffer when non zero
    15 #define CHECK_VERBOSE        // display a detailed check on TTY  when non zero
    16 #define INSTRUMENTATION_OK  0   // display statistcs on TTY when non zero
     14#define DISPLAY_OK          1           // enable display on frame buffer when non zero
     15#define CHECK_VERBOSE       !DISPLAY_OK // display a detailed check on TTY  when non zero
     16#define INSTRUMENTATION_OK  0           // display statistcs on TTY when non zero
    1717
    1818// tricks to read some addresses from ldscript
     
    4141    unsigned int l;                                             // line index for loops
    4242    unsigned int p;                                             // pixel index for loops
    43 
    44     unsigned int * ioc_address = (unsigned int *) &seg_ioc_base;
    45     unsigned int block_size    = ioc_address[BLOCK_DEVICE_BLOCK_SIZE];
    46 
     43    unsigned int block_size  = _ioc_get_blocksize();            // get IOC block size
    4744    unsigned int proc_id     = _procid();                       // processor id
    4845    unsigned int nclusters   = X_SIZE*Y_SIZE;                   // number of clusters
     
    128125      LOAD_END[cluster_id][lpid] = _proctime();
    129126
     127
     128      _tty_printf("*** Proc [%d,%d,%d] barrier wait (0)\n", x, y, lpid);
    130129      _barrier_wait(0);
    131130
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