Ignore:
Timestamp:
Oct 10, 2019, 1:42:04 PM (16 months ago)
Author:
alain
Message:
  • Fix several bugs.
  • Introduce the "stat" command in KSH.

This almos-mkh version sucessfully executed the FFT application
(65536 complex points) on the TSAR architecture from 1 to 64 cores.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • trunk/kernel/kern/thread.h

    r635 r641  
    2828#include <hal_kernel_types.h>
    2929#include <shared_syscalls.h>
     30#include <shared_almos.h>
    3031#include <hal_special.h>
    3132#include <hal_kentry.h>
     
    9596
    9697/***************************************************************************************
    97  * This structure defines thread instrumentation informations.
    98  **************************************************************************************/
    99 
    100 typedef struct thread_info_s
    101 {
    102         uint32_t     false_pgfault_nr;       /*! number of local page fault               */
    103         uint32_t     local_pgfault_nr;       /*! number of local page fault               */
    104         uint32_t     global_pgfault_nr;      /*! number of global page fault              */
    105     uint32_t     false_pgfault_cost;     /*! cumulated cost                           */
    106     uint32_t     local_pgfault_cost;     /*! cumulated cost                           */
    107     uint32_t     global_pgfault_cost;    /*! cumulated cost                           */
    108 
    109         cycle_t      last_cycle;             /*! last cycle counter value (date)          */
    110         cycle_t      usr_cycles;             /*! user execution duration (cycles)         */
    111         cycle_t      sys_cycles;             /*! system execution duration (cycles)       */
    112 }
    113 thread_info_t;
    114 
    115 /***************************************************************************************
    11698 * This structure defines a thread descriptor.
    11799 * It is used for both the user threads and the kernel threads.
     
    119101 * - The TRDID 16 LSB bits contain the LTID (Local Thread Index).
    120102 * - The TRDID 16 MSB bits contain the CXY of cluster containing the thread.
    121  * The main thread LTID value is always 0.
     103 * For the main thread the LTID value is always 0, in the owner cluster.
    122104 * The LTID is used to index the th_tbl[] array in the local process descriptor.
    123105 * This TRDID is computed by the process_register_thread() function, when the user
    124106 * thread is registered in the local copy of the process descriptor.
    125107 *
    126  * WARNING (1) Don't modify the first 4 fields order, as this order is used by the
    127  *             hal_kentry assembly code for the TSAR architectures.
    128  *
    129  * WARNING (2) Most of the thread state is private and accessed only by this thread,
    130  *             but some fields are shared, and can be modified by other threads.
    131  *             - the "blocked" bit_vector can be modified by another thread
    132  *               running in another cluster (using atomic instructions),
    133  *               to change this thread scheduling status.
    134  *             - the "flags" bit_vector can be modified by another thread
    135  *               running in another cluster (using atomic instructions),
    136  *               to register requests such as ACK or DELETE.
    137  *             - the "join_xp" field can be modified by the joining thread,
    138  *               and this rendez-vous is protected by the dedicated "join_lock".
    139  *
    140  * WARNING (3) When this thread is blocked on a shared resource (queuelock, condvar,
    141  *             or chdev), it registers in the associated waiting queue, using the
    142  *             "wait_list" (local list) or "wait_xlist" (trans-cluster list) fields.
     108 * Implementation notes:
     109 *
     110 * (1) Don't modify the first 4 fields order, as this order is used by the
     111 *     hal_kentry assembly code for the TSAR architectures.
     112 *
     113 * (2) Most of the thread state is private and accessed only by this thread,
     114 *     but some fields are shared, and can be modified by other threads.
     115 *     - the "blocked" bit_vector can be modified by another thread
     116 *       running in another cluster (using atomic instructions),
     117 *       to change this thread scheduling status.
     118 *     - the "flags" bit_vector can be modified by another thread
     119 *       running in another cluster (using atomic instructions),
     120 *       to register requests such as ACK or DELETE.
     121 *     - the "join_xp" field can be modified by the joining thread,
     122 *       and this rendez-vous is protected by the dedicated "join_lock".
     123 *
     124 * (3) When this thread is blocked on a shared resource (queuelock, condvar,
     125 *     or chdev), it registers in the associated waiting queue, using the
     126 *     "wait_list" (local list) or "wait_xlist" (trans-cluster list) fields.
     127 *
     128 * (4) The thread_info_t structure is defined in the shared_almos.h file in the
     129 *     /kernel/syscall/shared_include directory.
    143130 **************************************************************************************/
    144131
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