Changeset 2835b3a5 in rtems


Ignore:
Timestamp:
02/01/02 15:15:02 (22 years ago)
Author:
Joel Sherrill <joel.sherrill@…>
Branches:
4.10, 4.11, 4.8, 4.9, 5, master
Children:
7de58239
Parents:
e6dec71c
Message:

2001-02-01 Greg Menke <gregory.menke@…>

  • Lots of tinkering and tuning as part of improving interrupt latency and improving the per-task interrupt level control and FP mask handling. With these modifications interrupt latency was measured at a worst-case of 100us, average below 60 us on a 12 Mhz R3000 class CPU with 50 RTEMS tasks in the application.
  • mongoosev/README: Updated.
  • mongoosev/include/mongoose-v.h: Masks modified.
  • mongoosev/vectorisrs/vectorisrs.c: Significant overhaul to address software prioritization of interrupts. If a higher priority interrupt occurs while we are looking for new interrupts, we will reinitiate the scan of all interrupts.
  • shared/interrupts/vectorexceptions.c: Removed warning and deleted blank lines.
Location:
c/src/lib/libcpu/mips
Files:
5 edited

Legend:

Unmodified
Added
Removed

  • c/src/lib/libcpu/mips/ChangeLog

    re6dec71c r2835b3a5  
     12001-02-01      Greg Menke <gregory.menke@gsfc.nasa.gov>
     2
     3        * Lots of tinkering and tuning as part of improving interrupt latency
     4        and improving the per-task interrupt level control and FP mask handling.
     5        With these modifications interrupt latency was measured at a worst-case
     6        of 100us, average below 60 us on a 12 Mhz R3000 class CPU with 50
     7        RTEMS tasks in the application.
     8        * mongoosev/README: Updated. 
     9        * mongoosev/include/mongoose-v.h: Masks modified.
     10        * mongoosev/vectorisrs/vectorisrs.c: Significant overhaul to address
     11        software prioritization of interrupts.  If a higher priority interrupt
     12        occurs while we are looking for new interrupts, we will reinitiate the
     13        scan of all interrupts.
     14        * shared/interrupts/vectorexceptions.c: Removed warning and deleted
     15        blank lines.
     16
    1172002-01-03      Ralf Corsepius <corsepiu@faw.uni-ulm.de>
    218

  • c/src/lib/libcpu/mips/mongoosev/README

    re6dec71c r2835b3a5  
    55The Synova Mongoose-V is a radiation hardened derivative of the
    66LSI 33K with on-CPU peripherals.
     7
     8Status
     9======
     10
     11Per-task floating point enable/disable is supported for both immediate
     12and deferred FPU context swaps.
     13
     14Interrupt Levels are adapted reasonably well to the MIPS interrupt
     15model. Bit 0 of the int level is a global enable/disable, corresponding
     16to bit 0 of the processor's SR register.  Bits 1 thru 6 are configured
     17as masks for the Int0 thru Int5 interrupts.  The 2 software interrupt
     18bits are always enabled by default.  Each task maintains its own
     19Interrupt Level setting, reconfiguring the SR register's interrupt bits
     20whenever scheduled in.  The software ints, though not addressable via
     21the various Interrupt Level functions, are maintained on a per-task
     22basis, so if software manipulates them directly, things should behave as
     23expected.  At the time of these udpates, the Interrupt Level was only 8
     24bits, and completely supporting the global enable, software ints and the
     25hardware ints would require 9 bits.  When more than 8 bits are
     26available, there is no reason the software interrupts could not be added
     27to the Interrupt Level.
     28
     29While supporting the Int0 thru Int5 bits in this way doesn't seem
     30wonderfully useful, it does increase the level of compliance with the
     31RTEMS spec.
     32
     33Interrupt Level 0 corresponds to interrupts globally enabled, software
     34ints enabled and Int0 thru Int5 enabled.  If values other than 0 are
     35supplied, they should be formulated to impose the desired bitmask.
     36Interrupt priority is not a strong concept on this bsp, it is provided
     37only by the order in which interrupts are checked. 
     38
     39If during the vectoring of an interrupt, others arrive, they will all be
     40processed in accordance with their ordering in SR & the peripheral
     41register.  For example, if while we're vectoring Int4, Int3 and Int5 are
     42asserted, Int3 will be serviced before Int5.  The peripheral interrupts
     43are individually vectored as a consequence of Int5 being asserted,
     44however Int5 is not itself vectored.  Within the set of peripheral
     45interrupts, bit 0 is vectored first, 31 is last.
     46
     47Interrupts are not nested for MIPS1 or MIPS3 processors, but are
     48processed serially as possible.  On an unloaded 50 task RTEMS program,
     49runnning on a 12mhz MIPS1 processor, worst-case latencies of 100us were
     50observed, the average being down at 60us or below.
     51
     52
     53These features are principally a consequence of fixes and tweaks to the
     54MIPS1 and MIPS3 processor support, and should be equally effective on
     55both levels of MIPS processors for any of their bsp's.
     56
     57
     58
     59
     60

  • c/src/lib/libcpu/mips/mongoosev/include/mongoose-v.h

    re6dec71c r2835b3a5  
    9999
    100100#define MONGOOSEV_UART_CMD_TX_ENABLE_1 \
    101         (MONGOOSEV_UART_CMD_TX_ENABLE << MONGOOSEV_UART0_CMD_SHIFT)
     101        (MONGOOSEV_UART_CMD_TX_ENABLE << MONGOOSEV_UART1_CMD_SHIFT)
    102102#define MONGOOSEV_UART_CMD_RX_ENABLE_1 \
    103         (MONGOOSEV_UART_CMD_RX_ENABLE << MONGOOSEV_UART0_CMD_SHIFT)
     103        (MONGOOSEV_UART_CMD_RX_ENABLE << MONGOOSEV_UART1_CMD_SHIFT)
    104104#define MONGOOSEV_UART_CMD_TX_READY_1 \
    105         (MONGOOSEV_UART_CMD_TX_READY << MONGOOSEV_UART0_CMD_SHIFT)
     105        (MONGOOSEV_UART_CMD_TX_READY << MONGOOSEV_UART1_CMD_SHIFT)
    106106#define MONGOOSEV_UART_CMD_PARITY_ENABLE_1 \
    107         (MONGOOSEV_UART_CMD_PARITY_ENABLE << MONGOOSEV_UART0_CMD_SHIFT)
     107        (MONGOOSEV_UART_CMD_PARITY_ENABLE << MONGOOSEV_UART1_CMD_SHIFT)
    108108#define MONGOOSEV_UART_CMD_PARITY_DISABLE_1 \
    109         (MONGOOSEV_UART_CMD_PARITY_DISABLE << MONGOOSEV_UART0_CMD_SHIFT)
     109        (MONGOOSEV_UART_CMD_PARITY_DISABLE << MONGOOSEV_UART1_CMD_SHIFT)
    110110#define MONGOOSEV_UART_CMD_PARITY_EVEN_1 \
    111         (MONGOOSEV_UART_CMD_PARITY_EVEN << MONGOOSEV_UART0_CMD_SHIFT)
     111        (MONGOOSEV_UART_CMD_PARITY_EVEN << MONGOOSEV_UART1_CMD_SHIFT)
    112112#define MONGOOSEV_UART_CMD_PARITY_ODD_1 \
    113         (MONGOOSEV_UART_CMD_PARITY_ODD << MONGOOSEV_UART0_CMD_SHIFT)
     113        (MONGOOSEV_UART_CMD_PARITY_ODD << MONGOOSEV_UART1_CMD_SHIFT)
    114114
    115115/* UART Bits in Peripheral Status and Interrupt Cause Register */
    … …  
    131131#define MONGOOSEV_UART0_IRQ_SHIFT 11
    132132#define MONGOOSEV_UART1_IRQ_SHIFT 17
     133
     134#define MONGOOSEV_UART_FRAME_ERROR_0 \
     135        (MONGOOSEV_UART_FRAME_ERROR << MONGOOSEV_UART0_IRQ_SHIFT)
     136#define MONGOOSEV_UART_RX_OVERRUN_ERROR_0 \
     137        (MONGOOSEV_UART_RX_OVERRUN_ERROR << MONGOOSEV_UART0_IRQ_SHIFT)
     138#define MONGOOSEV_UART_TX_EMPTY_0 \
     139        (MONGOOSEV_UART_TX_EMPTY << MONGOOSEV_UART0_IRQ_SHIFT)
     140#define MONGOOSEV_UART_TX_READY_0 \
     141        (MONGOOSEV_UART_TX_READY << MONGOOSEV_UART0_IRQ_SHIFT)
     142#define MONGOOSEV_UART_RX_READY_0 \
     143        (MONGOOSEV_UART_RX_READY << MONGOOSEV_UART0_IRQ_SHIFT)
    133144
    134145#define MONGOOSEV_UART_FRAME_ERROR_1 \
    … …  
    143154        (MONGOOSEV_UART_RX_READY << MONGOOSEV_UART1_IRQ_SHIFT)
    144155
    145 #define MONGOOSEV_UART_FRAME_ERROR_0 \
    146         (MONGOOSEV_UART_FRAME_ERROR << MONGOOSEV_UART1_IRQ_SHIFT)
    147 #define MONGOOSEV_UART_RX_OVERRUN_ERROR_0 \
    148         (MONGOOSEV_UART_RX_OVERRUN_ERROR << MONGOOSEV_UART1_IRQ_SHIFT)
    149 #define MONGOOSEV_UART_TX_EMPTY_0 \
    150         (MONGOOSEV_UART_TX_EMPTY << MONGOOSEV_UART1_IRQ_SHIFT)
    151 #define MONGOOSEV_UART_TX_READY_0 \
    152         (MONGOOSEV_UART_TX_READY << MONGOOSEV_UART1_IRQ_SHIFT)
    153 #define MONGOOSEV_UART_RX_READY_0 \
    154         (MONGOOSEV_UART_RX_READY << MONGOOSEV_UART1_IRQ_SHIFT)
    155 
    156156/*
    157157 *  Bits in the Peripheral Interrupt Mask Register
    … …  
    163163#define MONGOOSEV_EDAC_SERR_BIT          0x80000000
    164164#define MONGOOSEV_EDAC_MERR_BIT          0x40000000
     165/* 29 - 24 reserved */
    165166#define MONGOOSEV_MAVN_WRITE_ACCESS      0x00800000
    166167#define MONGOOSEV_MAVN_READ_ACCESS       0x00400000
    167 /* 29 - 24 reserved */
    168168#define MONGOOSEV_UART_1_RX_READY        0x00200000
    169169#define MONGOOSEV_UART_1_TX_READY        0x00100000
    … …  
    188188#define MONGOOSEV_EXTERN_INT_1           0x00000002
    189189#define MONGOOSEV_EXTERN_INT_0           0x00000001
     190
     191
     192/*
     193** Peripheral Command bits (non-uart, those are defined above)
     194*/
     195#define MONGOOSEV_COMMAND_ENABLE_EDAC   MONGOOSEV_EDAC_SERR_BIT
     196#define MONGOOSEV_COMMAND_OVERRIDE_EDAC MONGOOSEV_EDAC_MERR_BIT         
     197
    190198
    191199

  • c/src/lib/libcpu/mips/mongoosev/vectorisrs/vectorisrs.c

    re6dec71c r2835b3a5  
    2020
    2121
     22#include <bspIo.h>  /* for printk */
     23
     24
     25
     26int mips_default_isr( int vector )
     27{
     28  unsigned int sr, sr2;
     29  unsigned int cause;
     30
     31  mips_get_sr( sr );
     32  mips_get_cause( cause );
     33
     34  sr2 = sr & ~0xff;
     35  mips_set_sr(sr2);
     36
     37  printk( "Unhandled isr exception: vector 0x%02x, cause 0x%08X, sr 0x%08X\n", vector, cause, sr );
     38  rtems_fatal_error_occurred(1);
     39  return 0;
     40}
     41
     42/* userspace routine to assert either software interrupt */
     43
     44int assertSoftwareInterrupt( unsigned32 n )
     45{
     46   if( n<2 )
     47   {
     48      unsigned32 c;
     49
     50      mips_get_cause(c);
     51      c = ((n+1) << CAUSE_IPSHIFT);
     52      mips_set_cause(c);
     53
     54      return n;
     55   }
     56   else return -1;
     57}
     58
     59
     60
     61
     62
     63
    2264#define CALL_ISR(_vector,_frame) \
    2365  do { \
    24     if ( _ISR_Vector_table[_vector] ) \
     66    if( _ISR_Vector_table[_vector] ) \
    2567      (_ISR_Vector_table[_vector])(_vector,_frame); \
    2668    else \
    … …  
    2870  } while (0)
    2971
    30 #include <rtems/bspIo.h>  /* for printk */
    31 
     72
     73//
     74// Instrumentation tweaks for isr timing measurement, turning them off
     75// via this #if will remove the code entirely from the RTEMS kernel.
     76//
     77
     78#if 1
     79#define SET_ISR_FLAG( offset )  *((unsigned32 *)(0x8001e000+offset)) = 1;
     80#define CLR_ISR_FLAG( offset )  *((unsigned32 *)(0x8001e000+offset)) = 0;
     81#else
     82#define SET_ISR_FLAG( offset )
     83#define CLR_ISR_FLAG( offset )
     84#endif
     85
     86
     87
     88
     89
     90
     91static volatile unsigned32 _ivcause, _ivsr;
     92
     93
     94static unsigned32 READ_CAUSE(void)
     95{
     96   mips_get_cause( _ivcause );
     97   _ivcause &= SR_IMASK;        // mask off everything other than the interrupt bits
     98
     99   return ((_ivcause & (_ivsr & SR_IMASK)) >> CAUSE_IPSHIFT);
     100}
     101
     102
     103
     104//
     105// This rather strangely coded routine enforces an interrupt priority
     106// scheme.  As it runs thru finding whichever interrupt caused it to get
     107// here, it test for other interrupts arriving in the meantime (maybe it
     108// occured while the vector code is executing for instance).  Each new
     109// interrupt will be served in order of its priority.  In an effort to
     110// minimize overhead, the cause register is only fetched after an
     111// interrupt is serviced.  Because of the intvect goto's, this routine
     112// will only exit when all interrupts have been serviced and no more
     113// have arrived, this improves interrupt latency at the cost of
     114// increasing scheduling jitter; though scheduling jitter should only
     115// become apparent in high interrupt load conditions.
     116//
    32117void mips_vector_isr_handlers( CPU_Interrupt_frame *frame )
    33118{
    34   unsigned32  sr, srmaskoff;
    35   unsigned32  cause, cshifted;
    36   unsigned32  bit;
    37   unsigned32  pf_icr;
    38 
    39   /* mips_get_sr( sr ); */
    40   sr = frame->regs[ R_SR ];
    41 
    42   mips_get_cause( cause );
    43 
    44   /* mask off everything other than the interrupt bits */
    45   cause &= SR_IMASK;
    46 
    47   /* mask off the pending interrupts in the status register */
    48   srmaskoff = sr & ~cause;
    49   mips_set_sr( srmaskoff );
    50 
    51   /* allow nesting for all non-pending interrupts */
    52   asm volatile( "rfe" );
    53 
    54   cshifted = (cause & (sr & SR_IMASK)) >> CAUSE_IPSHIFT;
    55 
    56   if ( cshifted & 0x04 )       /* IP[0] ==> INT0 == TIMER1 */
    57     CALL_ISR( MONGOOSEV_IRQ_TIMER1, frame );
    58    
    59   if ( cshifted & 0x08 )       /* IP[1] ==> INT1 == TIMER2*/
    60     CALL_ISR( MONGOOSEV_IRQ_TIMER2, frame );
    61    
    62   if ( cshifted & 0x10 )       /* IP[2] ==> INT2 */
    63     CALL_ISR( MONGOOSEV_IRQ_INT2, frame );
    64    
    65   if ( cshifted & 0x20 )       /* IP[3] ==> INT3 == FPU interrupt */
    66     CALL_ISR( MONGOOSEV_IRQ_INT3, frame );
    67    
    68   if ( cshifted & 0x40 )       /* IP[4] ==> INT4, external interrupt */
    69     CALL_ISR( MONGOOSEV_IRQ_INT4, frame );
    70 
    71   if ( cshifted & 0x80 )       /* IP[5] ==> INT5, peripheral interrupt */
    72   {
    73      pf_icr = MONGOOSEV_READ( MONGOOSEV_PERIPHERAL_FUNCTION_INTERRUPT_CAUSE_REGISTER );
    74 
    75      /* if !pf_icr */
    76      for ( bit=0 ; bit <= 31 ; bit++, pf_icr >>= 1 )
    77      {
    78         if ( pf_icr & 1 )
    79         {
    80            CALL_ISR( MONGOOSEV_IRQ_PERIPHERAL_BASE + bit, frame );
    81         }
    82      }
    83   }
    84 
    85 
    86   /* all the pending interrupts were serviced, now re-enable them */
    87   mips_get_sr( sr );
    88 
    89   /* we allow the 2 software interrupts to nest freely, under the
    90    * assumption that the program knows what its doing... 
    91    */
    92 
    93   if( cshifted & 0x3 )
    94   {
    95      sr |= (SR_IBIT1 | SR_IBIT1);
    96      cause &= ~(SR_IBIT1 | SR_IBIT1);
    97 
    98      mips_set_cause(cause);
    99      mips_set_sr(sr);
    100 
    101      if ( cshifted & 0x01 )       /* SW[0] */
    102      {
    103         CALL_ISR( MONGOOSEV_IRQ_SOFTWARE_1, frame );
    104      }
    105      if ( cshifted & 0x02 )       /* SW[1] */
    106      {
    107         CALL_ISR( MONGOOSEV_IRQ_SOFTWARE_2, frame );
    108      }
    109   }
    110 
    111   sr |= cause;
    112   mips_set_sr( sr );
    113 }
    114 
    115 void mips_default_isr( int vector )
    116 {
    117   unsigned int sr;
    118   unsigned int cause;
    119 
    120   mips_get_sr( sr );
    121   mips_get_cause( cause );
    122 
    123   printk( "Unhandled isr exception: vector 0x%02x, cause 0x%08X, sr 0x%08X\n",
    124     vector, cause, sr );
    125   rtems_fatal_error_occurred(1);
    126 }
    127 
    128 /* userspace routine to assert either software interrupt */
    129 
    130 int assertSoftwareInterrupt( unsigned32 n )
    131 {
    132    if( n >= 0 && n<2 )
    133    {
    134       unsigned32 c;
    135 
    136       mips_get_cause(c);
    137       c = ((n+1) << 8);
    138       mips_set_cause(c);
    139 
    140       return n;
    141    }
    142    else return -1;
    143 }
    144 
     119   unsigned32   cshifted;
     120
     121   /* mips_get_sr( sr ); */
     122   _ivsr = frame->regs[ R_SR ];
     123
     124   cshifted = READ_CAUSE();
     125
     126  intvect:
     127
     128   if( cshifted & 0x3 )
     129   {
     130      // making the software interrupt the highest priority is kind of
     131      // stupid, but it makes the bit testing lots easier.  On the other
     132      // hand, these ints are infrequently used and the testing overhead
     133      // is minimal.  Who knows, high-priority software ints might be
     134      // handy in some situation.
     135
     136      /* unset both software int cause bits */
     137      mips_set_cause( _ivcause & ~(3 << CAUSE_IPSHIFT) );
     138
     139      if ( cshifted & 0x01 )       /* SW[0] */
     140      {
     141         CALL_ISR( MONGOOSEV_IRQ_SOFTWARE_1, frame );
     142      }
     143      if ( cshifted & 0x02 )       /* SW[1] */
     144      {
     145         CALL_ISR( MONGOOSEV_IRQ_SOFTWARE_2, frame );
     146      }
     147      cshifted = READ_CAUSE();
     148   }
     149
     150
     151   if ( cshifted & 0x04 )       /* IP[0] ==> INT0 == TIMER1 */
     152   {
     153      SET_ISR_FLAG( 0x4 );
     154      CALL_ISR( MONGOOSEV_IRQ_TIMER1, frame );
     155      CLR_ISR_FLAG( 0x4 );
     156      if( (cshifted = READ_CAUSE()) & 0x3 ) goto intvect;
     157   }
     158   
     159   if ( cshifted & 0x08 )       /* IP[1] ==> INT1 == TIMER2*/
     160   {
     161      SET_ISR_FLAG( 0x8 );
     162      CALL_ISR( MONGOOSEV_IRQ_TIMER2, frame );
     163      CLR_ISR_FLAG( 0x8 );
     164      if( (cshifted = READ_CAUSE()) & 0x7 ) goto intvect;
     165   }
     166   
     167   if ( cshifted & 0x10 )       /* IP[2] ==> INT2 */
     168   {
     169      SET_ISR_FLAG( 0x10 );
     170      CALL_ISR( MONGOOSEV_IRQ_INT2, frame );
     171      CLR_ISR_FLAG( 0x10 );
     172      if( (cshifted = READ_CAUSE()) & 0xf ) goto intvect;
     173   }
     174   
     175   if ( cshifted & 0x20 )       /* IP[3] ==> INT3 == FPU interrupt */
     176   {
     177      SET_ISR_FLAG( 0x20 );
     178      CALL_ISR( MONGOOSEV_IRQ_INT3, frame );
     179      CLR_ISR_FLAG( 0x20 );
     180      if( (cshifted = READ_CAUSE()) & 0x1f ) goto intvect;
     181   }
     182   
     183   if ( cshifted & 0x40 )       /* IP[4] ==> INT4, external interrupt */
     184   {
     185      SET_ISR_FLAG( 0x40 );
     186      CALL_ISR( MONGOOSEV_IRQ_INT4, frame );
     187      CLR_ISR_FLAG( 0x40 );
     188      if( (cshifted = READ_CAUSE()) & 0x3f ) goto intvect;
     189   }
     190
     191   if ( cshifted & 0x80 )       /* IP[5] ==> INT5, peripheral interrupt */
     192   {
     193      unsigned32  bit;
     194      unsigned32  pf_icr, pf_mask, pf_reset = 0;
     195      unsigned32  i, m;
     196
     197      pf_icr = MONGOOSEV_READ( MONGOOSEV_PERIPHERAL_FUNCTION_INTERRUPT_CAUSE_REGISTER );
     198
     199/*
     200      for (bit=0, pf_mask = 1;    bit < 32;     bit++, pf_mask <<= 1 )
     201      {
     202         if ( pf_icr & pf_mask )
     203         {
     204            SET_ISR_FLAG( 0x80 + (bit*4) );
     205            CALL_ISR( MONGOOSEV_IRQ_PERIPHERAL_BASE + bit, frame );
     206            CLR_ISR_FLAG( 0x80 + (bit*4) );
     207            pf_reset |= pf_mask;
     208            if( (cshifted = READ_CAUSE()) & 0xff ) break;
     209         }
     210      }
     211*/
     212
     213      //
     214      // iterate thru 32 bits in 4 chunks of 8 bits each.  This lets us
     215      // quickly get past unasserted interrupts instead of flogging our
     216      // way thru a full 32 bits.  pf_mask shifts left 8 bits at a time
     217      // to serve as a interrupt cause test mask.
     218      //
     219      for( bit=0, pf_mask = 0xff;    (bit < 32 && pf_icr);     (bit+=8, pf_mask <<= 8) )
     220      {
     221         if ( pf_icr & pf_mask )
     222         {
     223            // one or more of the 8 bits we're testing is high
     224
     225            m = (1 << bit);
     226
     227            // iterate thru the 8 bits, servicing any of the interrupts
     228            for(i=0; (i<8 && pf_icr); (i++, m <<= 1))
     229            {
     230               if( pf_icr & m )
     231               {
     232                  SET_ISR_FLAG( 0x80 + ((bit + i) * 4) );
     233                  CALL_ISR( MONGOOSEV_IRQ_PERIPHERAL_BASE + bit + i, frame );
     234                  CLR_ISR_FLAG( 0x80 + ((bit + i) * 4) );
     235
     236                  // or each serviced interrupt into our interrupt clear
     237                  // mask
     238                  pf_reset |= m;
     239
     240                  // xor off each int we service so we can immediately
     241                  // exit once we get the last one
     242                  pf_icr   %= m;
     243
     244                  // if another interrupt has arrived, jump out right
     245                  // away but be sure to reset all the interrupts we've
     246                  // already serviced
     247                  //if( READ_CAUSE() & 0xff ) goto pfexit;
     248               }
     249            }
     250         }
     251      }
     252     pfexit:
     253      MONGOOSEV_WRITE( MONGOOSEV_PERIPHERAL_STATUS_REGISTER, pf_reset );
     254   }
     255
     256   //
     257   // this is a last ditch interrupt check, if an interrupt arrives
     258   // after this step, servicing it will incur the entire interrupt
     259   // overhead cost.
     260   //
     261   if( (cshifted = READ_CAUSE()) & 0xff ) goto intvect;
     262}
     263
     264
     265
     266// eof

  • c/src/lib/libcpu/mips/shared/interrupts/vectorexceptions.c

    re6dec71c r2835b3a5  
    1212#include "iregdef.h"
    1313#include "idtcpu.h"
    14 #include <rtems/bspIo.h>
     14#include <bspIo.h>
    1515
    1616char *cause_strings[32] =
    … …  
    9090}
    9191
     92
     93
     94
    9295#define CALL_EXC(_vector,_frame) \
    9396   do { \
    … …  
    97100             mips_default_exception_code_handler( _vector, _frame ); \
    98101   } while(0)
     102
     103
     104
    99105
    100106/*
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