Ignore:
Timestamp:
Mar 26, 2014, 6:44:44 PM (10 years ago)
Author:
alain
Message:

Introducing a major release, to suppoort the tsar_generic_leti platform
and the various (external or internal) peripherals configurations.
The map.xml format has been modified, in order to support the new
vci_iopic componentand a new policy for peripherals initialisation.
The IRQs are nom described in the XICU and IOPIC components
(and not anymore in the processors).
To enforce this major change, the map.xml file signature changed:
The signature value must be: 0xDACE2014

This new release has been tested on the tsar_generic_leti platform
for the following mappings:

  • 4c_4p_sort_leti
  • 4c_4p_sort_leti_ext
  • 4c_4p_transpose_leti
  • 4c_4p_transpose_leti_ext
  • 4c_1p_four_leti_ext
File:
1 edited

Legend:

Unmodified
Added
Removed

  • soft/giet_vm/giet_drivers/tim_driver.c

    r263 r295  
    1818// The global index is cluster_xy * (NB_PROCS_MAX + NB_TIM_CHANNELS) + local_id
    1919//
    20 // The NB_PROCS_MAX and NB_TIM_CHANNELS values must be defined in the
    21 // hard_config.h file.
    22 //
    23 // The register offsets must be defined in the hwr_mapping.h file.
     20// The NB_PROCS_MAX and NB_TIM_CHANNELS values must be defined in hard_config.h file.
    2421/////////////////////////////////////////////////////////////////////////////////////
    2522// The virtual base address of the segment associated to a channel is:
    … …  
    3330#include <giet_config.h>
    3431#include <tim_driver.h>
     32#include <xcu_driver.h>
     33#include <tty_driver.h>
    3534#include <utils.h>
    3635
    … …  
    6867
    6968#if (NB_TIM_CHANNELS > 0)
    70 in_unckdata volatile unsigned char _user_timer_event[X_SIZE*Y_SIZE*NB_TIM_CHANNELS]
    71                             = { [0 ... ((X_SIZE*Y_SIZE*NB_TIM_CHANNELS) - 1)] = 0 };
     69in_unckdata volatile unsigned char _user_timer_event[(1<<X_WIDTH)*(1<<Y_WIDTH)*NB_TIM_CHANNELS]
     70                        = { [0 ... (((1<<X_WIDTH)*(1<<Y_WIDTH)*NB_TIM_CHANNELS) - 1)] = 0 };
    7271#endif
    7372
    7473////////////////////////////////////////////////////////////////////////////////////
    75 //     _timer_start()
    7674// This function activates a timer in the vci_timer component
    7775// by writing in the proper register the period value.
    7876// It can be used by both the kernel to initialise a "system" timer,
    7977// or by a task (through a system call) to configure an "user" timer.
    80 // Returns 0 if success, > 0 if error.
    81 //////////////////////////////////////////////////////////////////////////////
    82 unsigned int _timer_start( unsigned int cluster_xy,
    83                            unsigned int local_id,
    84                            unsigned int period)
    85 {
    86     // parameters checking
    87     unsigned int x = cluster_xy >> Y_WIDTH;
    88     unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1);
    89     if (x >= X_SIZE)                  return 1;
    90     if (y >= Y_SIZE)                  return 1;
    91     if (local_id >= NB_TIM_CHANNELS)  return 1;
     78///////////////////////////////////////////////////////////////////////////////////
     79void _timer_start( unsigned int cluster_xy,
     80                   unsigned int local_id,
     81                   unsigned int period)
     82{
     83#if NB_TIM_CHANNELS
     84
     85    // parameters checking
     86    unsigned int x = cluster_xy >> Y_WIDTH;
     87    unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1);
     88    if ( (x >= X_SIZE) || (y >= Y_SIZE) || (local_id >= NB_TIM_CHANNELS) )
     89    {
     90        _printf("[GIET ERROR] in _timer_start()\n");
     91        _exit();
     92    }
    9293
    9394    unsigned int* timer_address = (unsigned int *) ((unsigned int)&seg_tim_base +
    … …  
    9697    timer_address[local_id * TIMER_SPAN + TIMER_PERIOD] = period;
    9798    timer_address[local_id * TIMER_SPAN + TIMER_MODE] = 0x3;
    98     return 0;
    99 }
    100 
    101 //////////////////////////////////////////////////////////////////////////////
    102 //     _timer_stop()
     99
     100#else
     101    _printf("[GIET ERROR] _timer_start() should not be called when NB_TIM_CHANNELS is 0\n");
     102    _exit();
     103#endif
     104}
     105
     106//////////////////////////////////////////////////////////////////////////////
    103107// This function desactivates a timer in the vci_timer component
    104108// by writing in the proper register.
    105109// Returns 0 if success, > 0 if error.
    106110//////////////////////////////////////////////////////////////////////////////
    107 unsigned int _timer_stop( unsigned int cluster_xy,
    108                           unsigned int local_id)
    109 {
    110     // parameters checking
    111     unsigned int x = cluster_xy >> Y_WIDTH;
    112     unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1);
    113     if (x >= X_SIZE)                  return 1;
    114     if (y >= Y_SIZE)                  return 1;
    115     if (local_id >= NB_TIM_CHANNELS)  return 1;
     111void _timer_stop( unsigned int cluster_xy,
     112                  unsigned int local_id)
     113{
     114#if NB_TIM_CHANNELS
     115
     116    // parameters checking
     117    unsigned int x = cluster_xy >> Y_WIDTH;
     118    unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1);
     119    if ( (x >= X_SIZE) || (y >= Y_SIZE) || (local_id >= NB_TIM_CHANNELS) )
     120    {
     121        _printf("[GIET ERROR] in _timer_stop()\n");
     122        _exit();
     123    }
    116124
    117125    unsigned int* timer_address = (unsigned int *) ((unsigned int)&seg_tim_base +
    … …  
    119127
    120128    timer_address[local_id * TIMER_SPAN + TIMER_MODE] = 0;
    121     return 0;
    122 }
    123 
    124 //////////////////////////////////////////////////////////////////////////////
    125 //     _timer_reset_irq()
     129
     130#else
     131    _printf("[GIET ERROR] _timer_stop() should not be called when NB_TIM_CHANNELS is 0\n");
     132    _exit();
     133#endif
     134}
     135
     136//////////////////////////////////////////////////////////////////////////////
    126137// This function acknowlegge a timer interrupt in the vci_timer 
    127138// component by writing in the proper register.
    … …  
    130141// Returns 0 if success, > 0 if error.
    131142//////////////////////////////////////////////////////////////////////////////
    132 unsigned int _timer_reset_irq( unsigned int cluster_xy,
    133                                unsigned int local_id )
    134 {
    135     // parameters checking
    136     unsigned int x = cluster_xy >> Y_WIDTH;
    137     unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1);
    138     if (x >= X_SIZE)                  return 1;
    139     if (y >= Y_SIZE)                  return 1;
    140     if (local_id >= NB_TIM_CHANNELS)  return 1;
     143void _timer_reset_irq( unsigned int cluster_xy,
     144                       unsigned int local_id )
     145{
     146#if NB_TIM_CHANNELS
     147
     148    // parameters checking
     149    unsigned int x = cluster_xy >> Y_WIDTH;
     150    unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1);
     151    if ( (x >= X_SIZE) || (y >= Y_SIZE) || (local_id >= NB_TIM_CHANNELS) )
     152    {
     153        _printf("[GIET ERROR] in _timer_reset_irq()\n");
     154        _exit();
     155    }
    141156
    142157    unsigned int * timer_address = (unsigned int *) ((unsigned int)&seg_tim_base +
    … …  
    144159
    145160    timer_address[local_id * TIMER_SPAN + TIMER_RESETIRQ] = 0;
    146     return 0;
     161
     162#else
     163    _printf("[GIET ERROR] _timer_reset_irq() should not be called when NB_TIM_CHANNELS is 0\n");
     164    _exit();
     165#endif
    147166}
    148167
    149168/////////////////////////////////////////////////////////////////////////////
    150 //     _timer_reset_cpt()
    151169// This function resets the timer counter. To do so, we re-write the period
    152170// in the proper register, what causes the count to restart.
    … …  
    156174// This function is called during a context switch (user or preemptive)
    157175//////////////////////////////////////////////////////////////////////i//////
    158 unsigned int _timer_reset_cpt( unsigned int cluster_xy,
    159                                unsigned int local_id)
    160 {
    161     // parameters checking
    162     unsigned int x = cluster_xy >> Y_WIDTH;
    163     unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1);
    164     if (x >= X_SIZE)                  return 1;
    165     if (y >= Y_SIZE)                  return 1;
    166     if (local_id >= NB_TIM_CHANNELS)  return 1;
     176void _timer_reset_cpt( unsigned int cluster_xy,
     177                       unsigned int local_id)
     178{
     179#if NB_TIM_CHANNELS
     180
     181    // parameters checking
     182    unsigned int x = cluster_xy >> Y_WIDTH;
     183    unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1);
     184    if ( (x >= X_SIZE) || (y >= Y_SIZE) || (local_id >= NB_TIM_CHANNELS) )
     185    {
     186        _printf("[GIET ERROR in _timer_reset_cpt()\n");
     187        _exit();
     188    }
    167189
    168190    // We suppose that the TIMER_MODE register value is 0x3
    … …  
    172194    unsigned int period = timer_address[local_id * TIMER_SPAN + TIMER_PERIOD];
    173195    timer_address[local_id * TIMER_SPAN + TIMER_PERIOD] = period;
    174     return 0;
    175 }
     196
     197#else
     198    _printf("[GIET ERROR] _timer_reset_cpt should not be called when NB_TIM_CHANNELS is 0\n");
     199    _exit();
     200#endif
     201}
     202
     203///////////////////////////////////////////////////////////////////////////////////
     204// This ISR handles the IRQs generated by the "user" timers that are
     205// replicated in all clusters.
     206// The IRQs generated by the "system" timers should be handled by _isr_switch().
     207// It can be a HWI or a PTI.
     208// The channel argument is the user timer local index.
     209//     timer_global_id = cluster_id*(NB_TIM_CHANNELS) + channel
     210// The ISR acknowledges the IRQ and registers the event in the proper entry
     211// of the _user_timer_event[] array, and a log message is displayed on TTY0.
     212///////////////////////////////////////////////////////////////////////////////////
     213void _timer_isr( unsigned int irq_type,   // HWI / PTI
     214                 unsigned int irq_id,     // index returned by XCU
     215                 unsigned int channel )   // user timer index
     216{
     217#if NB_TIM_CHANNELS
     218
     219    unsigned int cluster_xy = _get_procid() / NB_PROCS_MAX;
     220
     221    // acknowledge IRQ depending on type
     222    if   ( irq_type == IRQ_TYPE_HWI )  _timer_reset_irq( cluster_xy, channel );
     223    else                               _xcu_timer_reset_irq( cluster_xy, irq_id );
     224
     225    // register the event
     226    _user_timer_event[cluster_xy * NB_TIM_CHANNELS + channel] = 1;
     227
     228    // display a message on TTY 0
     229    _printf("\n[GIET WARNING] User Timer IRQ at cycle %d / cluster = %x / channel = %d\n",
     230            _get_proctime(), cluster_xy, channel );
     231
     232#else
     233    _printf("[GIET ERROR] _timer_isr() should not be called when NB_TIM_CHANNELS == 0\n");
     234    _exit();
     235#endif
     236}
     237
    176238
    177239
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