| 1 | /*
|
|---|
| 2 | * sys_get_config.c - get hardware platform parameters.
|
|---|
| 3 | *
|
|---|
| 4 | * Author Alain Greiner (2016,2017,2018)
|
|---|
| 5 | *
|
|---|
| 6 | * Copyright (c) UPMC Sorbonne Universites
|
|---|
| 7 | *
|
|---|
| 8 | * This file is part of ALMOS-MKH.
|
|---|
| 9 | *
|
|---|
| 10 | * ALMOS-MKH is free software; you can redistribute it and/or modify it
|
|---|
| 11 | * under the terms of the GNU General Public License as published by
|
|---|
| 12 | * the Free Software Foundation; version 2.0 of the License.
|
|---|
| 13 | *
|
|---|
| 14 | * ALMOS-MKH is distributed in the hope that it will be useful, but
|
|---|
| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|---|
| 17 | * General Public License for more details.
|
|---|
| 18 | *
|
|---|
| 19 | * You should have received a copy of the GNU General Public License
|
|---|
| 20 | * along with ALMOS-MKH; if not, write to the Free Software Foundation,
|
|---|
| 21 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|---|
| 22 | */
|
|---|
| 23 |
|
|---|
| 24 | #include <hal_kernel_types.h>
|
|---|
| 25 | #include <hal_uspace.h>
|
|---|
| 26 | #include <hal_special.h>
|
|---|
| 27 | #include <errno.h>
|
|---|
| 28 | #include <core.h>
|
|---|
| 29 | #include <thread.h>
|
|---|
| 30 | #include <process.h>
|
|---|
| 31 | #include <vmm.h>
|
|---|
| 32 | #include <printk.h>
|
|---|
| 33 |
|
|---|
| 34 | #include <syscalls.h>
|
|---|
| 35 |
|
|---|
| 36 | //////////////////////////////////////
|
|---|
| 37 | int sys_get_config( uint32_t * x_size,
|
|---|
| 38 | uint32_t * y_size,
|
|---|
| 39 | uint32_t * y_width,
|
|---|
| 40 | uint32_t * ncores )
|
|---|
| 41 | {
|
|---|
| 42 | error_t error;
|
|---|
| 43 | vseg_t * vseg;
|
|---|
| 44 | uint32_t k_x_size;
|
|---|
| 45 | uint32_t k_y_size;
|
|---|
| 46 | uint32_t k_ncores;
|
|---|
| 47 |
|
|---|
| 48 | thread_t * this = CURRENT_THREAD;
|
|---|
| 49 | process_t * process = this->process;
|
|---|
| 50 |
|
|---|
| 51 | #if DEBUG_SYS_GET_CONFIG
|
|---|
| 52 | uint64_t tm_start;
|
|---|
| 53 | uint64_t tm_end;
|
|---|
| 54 | tm_start = hal_get_cycles();
|
|---|
| 55 | if( DEBUG_SYS_GET_CONFIG < tm_start )
|
|---|
| 56 | printk("\n[DBG] %s : thread %x enter / process %x / cycle %d\n",
|
|---|
| 57 | __FUNCTION__, this, process->pid, (uint32_t)tm_start );
|
|---|
| 58 | #endif
|
|---|
| 59 |
|
|---|
| 60 | // check x_size buffer in user space
|
|---|
| 61 | error = vmm_get_vseg( process , (intptr_t)x_size , &vseg );
|
|---|
| 62 |
|
|---|
| 63 | if( error )
|
|---|
| 64 | {
|
|---|
| 65 |
|
|---|
| 66 | #if DEBUG_SYSCALLS_ERROR
|
|---|
| 67 | printk("\n[ERROR] in %s : x_size buffer unmapped / thread %x / process %x\n",
|
|---|
| 68 | __FUNCTION__ , (intptr_t)x_size , this->trdid , process->pid );
|
|---|
| 69 | vmm_display( process , false );
|
|---|
| 70 | #endif
|
|---|
| 71 | this->errno = EINVAL;
|
|---|
| 72 | return -1;
|
|---|
| 73 | }
|
|---|
| 74 |
|
|---|
| 75 | // check y_size buffer in user space
|
|---|
| 76 | error = vmm_get_vseg( process , (intptr_t)y_size , &vseg );
|
|---|
| 77 |
|
|---|
| 78 | if( error )
|
|---|
| 79 | {
|
|---|
| 80 |
|
|---|
| 81 | #if DEBUG_SYSCALLS_ERROR
|
|---|
| 82 | printk("\n[ERROR] in %s : y_size buffer unmapped / thread %x / process %x\n",
|
|---|
| 83 | __FUNCTION__ , (intptr_t)y_size , this->trdid , process->pid );
|
|---|
| 84 | vmm_display( process , false );
|
|---|
| 85 | #endif
|
|---|
| 86 | this->errno = EINVAL;
|
|---|
| 87 | return -1;
|
|---|
| 88 | }
|
|---|
| 89 |
|
|---|
| 90 | // check ncores buffer in user space
|
|---|
| 91 | error = vmm_get_vseg( process , (intptr_t)ncores , &vseg );
|
|---|
| 92 |
|
|---|
| 93 | if( error )
|
|---|
| 94 | {
|
|---|
| 95 |
|
|---|
| 96 | #if DEBUG_SYSCALLS_ERROR
|
|---|
| 97 | printk("\n[ERROR] in %s : ncores buffer unmapped / thread %x / process %x\n",
|
|---|
| 98 | __FUNCTION__ , (intptr_t)ncores , this->trdid , process->pid );
|
|---|
| 99 | vmm_display( process , false );
|
|---|
| 100 | #endif
|
|---|
| 101 | this->errno = EINVAL;
|
|---|
| 102 | return -1;
|
|---|
| 103 | }
|
|---|
| 104 |
|
|---|
| 105 | // get parameters
|
|---|
| 106 | k_x_size = LOCAL_CLUSTER->x_size;
|
|---|
| 107 | k_y_size = LOCAL_CLUSTER->y_size;
|
|---|
| 108 | k_ncores = LOCAL_CLUSTER->cores_nr;
|
|---|
| 109 |
|
|---|
| 110 | // copy to user space
|
|---|
| 111 | hal_copy_to_uspace( x_size , &k_x_size , sizeof(uint32_t) );
|
|---|
| 112 | hal_copy_to_uspace( y_size , &k_y_size , sizeof(uint32_t) );
|
|---|
| 113 | hal_copy_to_uspace( ncores , &k_ncores , sizeof(uint32_t) );
|
|---|
| 114 |
|
|---|
| 115 | hal_fence();
|
|---|
| 116 |
|
|---|
| 117 | #if DEBUG_SYS_GET_CONFIG
|
|---|
| 118 | tm_end = hal_get_cycles();
|
|---|
| 119 | if( DEBUG_SYS_GET_CONFIG < tm_end )
|
|---|
| 120 | printk("\n[DBG] %s : thread %x exit / process %x / cost %d / cycle %d\n",
|
|---|
| 121 | __FUNCTION__, this, process->pid, (uint32_t)(tm_end-tm_start), (uint32_t)tm_end );
|
|---|
| 122 | #endif
|
|---|
| 123 |
|
|---|
| 124 | return 0;
|
|---|
| 125 |
|
|---|
| 126 | } // end sys_get_config()
|
|---|
