[3] | 1 | /* |
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[647] | 2 | * dev_fbf.c - FBF (Frame Buffer) generic device API implementation. |
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[3] | 3 | * |
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[657] | 4 | * Author Alain Greiner (2016,2017,2018,2019,2020) |
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[3] | 5 | * |
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| 6 | * Copyright (c) UPMC Sorbonne Universites |
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| 7 | * |
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| 8 | * This file is part of ALMOS-MK |
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| 9 | * |
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| 10 | * ALMOS-MKH.is free software; you can redistribute it and/or modify it |
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| 11 | * under the terms of the GNU General Public License as published by |
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| 12 | * the Free Software Foundation; version 2.0 of the License. |
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| 13 | * |
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| 14 | * ALMOS-MKH.is distributed in the hope that it will be useful, but |
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| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 17 | * General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with ALMOS-kernel; if not, write to the Free Software Foundation, |
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| 21 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 22 | */ |
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| 23 | |
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[14] | 24 | #include <kernel_config.h> |
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[457] | 25 | #include <hal_kernel_types.h> |
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[3] | 26 | #include <hal_gpt.h> |
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[647] | 27 | #include <hal_drivers.h> |
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[657] | 28 | #include <hal_irqmask.h> |
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| 29 | #include <hal_macros.h> |
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| 30 | #include <hal_uspace.h> |
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| 31 | #include <hal_vmm.h> |
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[3] | 32 | #include <thread.h> |
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| 33 | #include <printk.h> |
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[422] | 34 | #include <string.h> |
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[657] | 35 | #include <memcpy.h> |
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[3] | 36 | #include <chdev.h> |
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| 37 | #include <dev_fbf.h> |
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| 38 | |
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| 39 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 40 | // Extern global variables |
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| 41 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 42 | |
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| 43 | extern chdev_directory_t chdev_dir; // allocated in kernel_init.c |
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| 44 | |
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[647] | 45 | /////////////////////////////////////////// |
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| 46 | char * dev_fbf_cmd_str( uint32_t cmd_type ) |
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| 47 | { |
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[657] | 48 | if ( cmd_type == FBF_GET_CONFIG ) return "GET_CONFIG"; |
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| 49 | else if( cmd_type == FBF_CREATE_WINDOW ) return "CREATE_WINDOW"; |
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| 50 | else if( cmd_type == FBF_DELETE_WINDOW ) return "DELETE_WINDOW"; |
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| 51 | else if( cmd_type == FBF_MOVE_WINDOW ) return "MOVE_WINDOW"; |
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| 52 | else if( cmd_type == FBF_REFRESH_WINDOW ) return "REFRESH_WINDOW"; |
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| 53 | else if( cmd_type == FBF_DIRECT_WRITE ) return "DIRECT_WRITE"; |
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| 54 | else if( cmd_type == FBF_DIRECT_READ ) return "DIRECT_READ"; |
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| 55 | else return "undefined"; |
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[647] | 56 | } |
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| 57 | |
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[3] | 58 | //////////////////////////////////// |
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[647] | 59 | void dev_fbf_init( chdev_t * fbf ) |
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[3] | 60 | { |
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[657] | 61 | uint32_t wid; |
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| 62 | |
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[23] | 63 | // set chdev name |
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[647] | 64 | strcpy( fbf->name, "fbf" ); |
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[188] | 65 | |
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[657] | 66 | // initialize lock protecting the windows |
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| 67 | remote_rwlock_init( XPTR( local_cxy , &fbf->ext.fbf.windows_lock ), |
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| 68 | LOCK_FBF_WINDOWS ); |
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| 69 | |
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| 70 | // initialize root of windows xlist |
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| 71 | xlist_root_init( XPTR( local_cxy , &fbf->ext.fbf.windows_root ) ); |
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| 72 | |
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| 73 | // initialize windows_tbl[] array |
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| 74 | for( wid = 0 ; wid < CONFIG_FBF_WINDOWS_MAX_NR ; wid++ ) |
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| 75 | { |
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| 76 | fbf->ext.fbf.windows_tbl[wid] = XPTR_NULL; |
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| 77 | } |
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| 78 | |
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| 79 | // initialize wid allocator bitmap |
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| 80 | bitmap_init( fbf->ext.fbf.windows_bitmap , CONFIG_FBF_WINDOWS_MAX_NR ); |
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| 81 | |
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| 82 | // call driver init function to initialize the harware FBF |
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| 83 | // and initialize the width, height, and subsampling FBF chdev fields |
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[647] | 84 | hal_drivers_fbf_init( fbf ); |
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[3] | 85 | |
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| 86 | } // end dev_fbf_init() |
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| 87 | |
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[647] | 88 | ////////////////////////////////////////// |
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| 89 | void dev_fbf_get_config( uint32_t * width, |
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| 90 | uint32_t * height, |
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| 91 | uint32_t * type ) |
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[3] | 92 | { |
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| 93 | // get extended pointer on FBF chdev descriptor |
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| 94 | xptr_t dev_xp = chdev_dir.fbf[0]; |
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| 95 | |
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[657] | 96 | assert( (dev_xp != XPTR_NULL) , "undefined FBF chdev descriptor" ); |
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[3] | 97 | |
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| 98 | // get FBF chdev cluster and local pointer |
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| 99 | cxy_t dev_cxy = GET_CXY( dev_xp ); |
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| 100 | chdev_t * dev_ptr = (chdev_t *)GET_PTR( dev_xp ); |
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| 101 | |
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| 102 | // return values |
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[565] | 103 | *width = hal_remote_l32( XPTR( dev_cxy , &dev_ptr->ext.fbf.width ) ); |
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| 104 | *height = hal_remote_l32( XPTR( dev_cxy , &dev_ptr->ext.fbf.height ) ); |
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[647] | 105 | *type = hal_remote_l32( XPTR( dev_cxy , &dev_ptr->ext.fbf.subsampling ) ); |
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[3] | 106 | |
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[647] | 107 | } // end dev_fbf_get_config() |
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[3] | 108 | |
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[657] | 109 | /////////////////////////////////////////////// |
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| 110 | uint32_t dev_fbf_create_window( uint32_t nlines, |
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| 111 | uint32_t npixels, |
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| 112 | uint32_t l_min, |
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| 113 | uint32_t p_min, |
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| 114 | intptr_t * user_buffer ) |
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| 115 | { |
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| 116 | kmem_req_t req; |
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| 117 | fbf_window_t * window; // window descriptor (created in local cluster) |
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| 118 | vseg_t * vseg; // vseg descriptor (created in reference cluster) |
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| 119 | intptr_t vseg_base; // vseg base address in user space |
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| 120 | |
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| 121 | // get local pointers on calling thread and process |
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| 122 | thread_t * this = CURRENT_THREAD; |
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| 123 | process_t * process = this->process; |
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| 124 | |
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| 125 | #if DEBUG_DEV_FBF |
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| 126 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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| 127 | if( DEBUG_DEV_FBF < cycle ) |
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| 128 | printk("\n[%s] thread[%x,%x] enter : nlines %d / npixels %d / l_min %d / p_min %d / cycle %d\n", |
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| 129 | __FUNCTION__ , process->pid, this->trdid, nlines, npixels, l_min, p_min, cycle ); |
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| 130 | #endif |
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| 131 | |
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| 132 | // get cluster and pointers on FBF chdev |
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| 133 | xptr_t fbf_xp = chdev_dir.fbf[0]; |
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| 134 | cxy_t fbf_cxy = GET_CXY( fbf_xp ); |
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| 135 | chdev_t * fbf_ptr = GET_PTR( fbf_xp ); |
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| 136 | |
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| 137 | // check fbf_xp definition |
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| 138 | assert( (fbf_xp != XPTR_NULL) , "undefined FBF chdev descriptor" ); |
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| 139 | |
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| 140 | // get FBF width and height |
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| 141 | uint32_t fbf_width = hal_remote_l32( XPTR( fbf_cxy , &fbf_ptr->ext.fbf.width ) ); |
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| 142 | uint32_t fbf_height = hal_remote_l32( XPTR( fbf_cxy , &fbf_ptr->ext.fbf.height ) ); |
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| 143 | |
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| 144 | // check new window size and coordinates |
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| 145 | if( (((l_min + nlines) > fbf_height) || ((p_min + npixels) > fbf_width)) ) |
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| 146 | { |
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| 147 | printk("\n[ERROR] in %s / thread[%x,%x]" |
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| 148 | "illegal new coordinates (%d,%d) for window (%d,%d) in fbf (%d,%d)\n", |
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| 149 | process->pid, this->trdid, p_min, l_min, npixels, nlines, fbf_width, fbf_height ); |
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| 150 | return -1; |
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| 151 | } |
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| 152 | |
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| 153 | // build extended pointers on windows lock, root, and wid allocator |
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| 154 | xptr_t windows_lock_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_lock ); |
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| 155 | xptr_t windows_root_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_root ); |
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| 156 | xptr_t windows_bitmap_xp = XPTR( fbf_cxy , fbf_ptr->ext.fbf.windows_bitmap ); |
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| 157 | |
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| 158 | // allocate memory for the window descriptor in local cluster |
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| 159 | req.type = KMEM_KCM; |
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| 160 | req.order = bits_log2( sizeof(fbf_window_t) ); |
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| 161 | req.flags = AF_ZERO | AF_KERNEL; |
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| 162 | window = kmem_alloc( &req ); |
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| 163 | |
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| 164 | if( window == NULL ) |
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| 165 | { |
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| 166 | printk("\n[ERROR] in %s / thread[%x,%x] cannot allocate window descriptor\n", |
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| 167 | __FUNCTION__, process->pid, this->trdid ); |
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| 168 | return -1; |
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| 169 | } |
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| 170 | |
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| 171 | #if (DEBUG_DEV_FBF & 1) |
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| 172 | cycle = (uint32_t)hal_get_cycles(); |
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| 173 | if( DEBUG_DEV_FBF < cycle ) |
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| 174 | printk("\n[%s] thread[%x,%x] created window descriptor %x / cycle %d\n", |
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| 175 | __FUNCTION__ , process->pid, this->trdid, window, cycle ); |
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| 176 | #endif |
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| 177 | |
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| 178 | // getpointers on reference process |
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| 179 | xptr_t ref_xp = process->ref_xp; |
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| 180 | process_t * ref_ptr = GET_PTR( ref_xp ); |
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| 181 | cxy_t ref_cxy = GET_CXY( ref_xp ); |
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| 182 | |
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| 183 | // allocate a new vseg, and introduce it in the reference process VSL |
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| 184 | if( ref_cxy == local_cxy ) |
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| 185 | { |
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| 186 | vseg = vmm_create_vseg( process, // owner process |
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| 187 | VSEG_TYPE_ANON, // localised, public |
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| 188 | 0, // base, unused for ANON |
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| 189 | nlines * npixels, // size |
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| 190 | 0, // file_offset, unused for ANON |
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| 191 | 0, // file_size, unused for ANON |
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| 192 | XPTR_NULL, // mapper_xp, unused for ANON |
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| 193 | local_cxy ); // mapping cluster |
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| 194 | } |
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| 195 | else |
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| 196 | { |
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| 197 | rpc_vmm_create_vseg_client( ref_cxy, |
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| 198 | ref_ptr, |
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| 199 | VSEG_TYPE_ANON, |
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| 200 | 0, // base, unused for ANON |
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| 201 | nlines * npixels, // size |
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| 202 | 0, // file_offset, unused for ANON |
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| 203 | 0, // file size, unused for ANON |
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| 204 | XPTR_NULL, // mapper_xp, unused for ANON |
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| 205 | local_cxy, |
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| 206 | &vseg ); |
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| 207 | } |
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| 208 | |
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| 209 | if( vseg == NULL ) |
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| 210 | { |
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| 211 | printk("\n[ERROR] in %s / thread[%x,%x] cannot create vseg in reference cluster\n", |
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| 212 | __FUNCTION__, process->pid, this->trdid ); |
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| 213 | req.ptr = (void *)window; |
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| 214 | kmem_free( &req ); |
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| 215 | return -1; |
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| 216 | } |
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| 217 | |
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| 218 | // get vseg base |
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| 219 | vseg_base = (intptr_t)hal_remote_lpt( XPTR( ref_cxy , &vseg->min ) ); |
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| 220 | |
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| 221 | #if (DEBUG_DEV_FBF & 1) |
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| 222 | cycle = (uint32_t)hal_get_cycles(); |
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| 223 | if( DEBUG_DEV_FBF < cycle ) |
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| 224 | printk("\n[%s] thread[%x,%x] allocated vseg / base %x / cycle %d\n", |
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| 225 | __FUNCTION__ , process->pid, this->trdid, vseg_base, cycle ); |
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| 226 | #endif |
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| 227 | |
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| 228 | // take the lock protecting windows in write mode |
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| 229 | remote_rwlock_wr_acquire( windows_lock_xp ); |
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| 230 | |
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| 231 | // allocate a wid from allocator in FBF descriptor extension |
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| 232 | uint32_t wid = bitmap_remote_alloc( windows_bitmap_xp , CONFIG_FBF_WINDOWS_MAX_NR ); |
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| 233 | |
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| 234 | if( wid == 0xFFFFFFFF ) |
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| 235 | { |
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| 236 | printk("\n[ERROR] in %s / thread[%x,%x] cannot allocate buffer for window\n", |
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| 237 | __FUNCTION__, process->pid, this->trdid ); |
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| 238 | req.ptr = (void *)window; |
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| 239 | kmem_free( &req ); |
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| 240 | vmm_remove_vseg( process , vseg ); |
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| 241 | return -1; |
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| 242 | } |
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| 243 | |
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| 244 | // initialize window descriptor |
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| 245 | window->pid = process->pid; |
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| 246 | window->wid = wid; |
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| 247 | window->height = nlines; |
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| 248 | window->width = npixels; |
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| 249 | window->l_min = l_min; |
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| 250 | window->p_min = p_min; |
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| 251 | window->hidden = false; |
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| 252 | window->buffer = (uint8_t *)vseg_base; |
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| 253 | |
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| 254 | // register new window in xlist rooted in FBF extension |
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| 255 | xlist_add_last( windows_root_xp , XPTR( local_cxy , &window->xlist ) ); |
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| 256 | |
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| 257 | // build extended pointer on relevant entry in windows_tbl[] array |
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| 258 | xptr_t windows_tbl_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_tbl[wid] ); |
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| 259 | |
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| 260 | // register new window in windows_tbl[] stored in FBF extension |
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| 261 | hal_remote_s64( windows_tbl_xp , XPTR( local_cxy , window ) ); |
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| 262 | |
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| 263 | // release the lock protecting windows in write mode |
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| 264 | remote_rwlock_wr_release( windows_lock_xp ); |
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| 265 | |
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| 266 | #if DEBUG_DEV_FBF |
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| 267 | cycle = (uint32_t)hal_get_cycles(); |
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| 268 | if( DEBUG_DEV_FBF < cycle ) |
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| 269 | printk("\n[%s] thread[%x,%x] exit / wid %d / buffer %x / cycle %d\n", |
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| 270 | __FUNCTION__ , this->process->pid, this->trdid, wid , window->buffer, cycle ); |
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| 271 | #endif |
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| 272 | |
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| 273 | #if (DEBUG_DEV_FBF & 1) |
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| 274 | hal_vmm_display( ref_xp , true ); |
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| 275 | #endif |
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| 276 | |
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| 277 | // return pointer on allocated buffer |
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| 278 | *user_buffer = vseg_base; |
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| 279 | |
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| 280 | return wid; |
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| 281 | |
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| 282 | } // end dev_fbf_create_window() |
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| 283 | |
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| 284 | //////////////////////////////////////////////////////////////////////////////////////// |
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| 285 | // This static function is called by the dev_fbf_display() function. |
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| 286 | // For a partial FBF line, identified by the <f_line>, <f_p_min>, <f_p_max> arguments |
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| 287 | // in FBF reference, and for one remote window, identified by the <window_xp> argument, |
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| 288 | // it updates the target buffer identified by <t_buffer>, and containing exactly |
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| 289 | // (f_p_max - f_p_min) pixels. |
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| 290 | // Depending on the actual overlap between the window and the <t_buffer> representing |
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| 291 | // the partial FBF line, it moves up to (f_p_max - f_p_min) pixels from the window |
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| 292 | // buffer to the target buffer. The number of moved pixels can be nul if no overlap. |
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| 293 | //////////////////////////////////////////////////////////////////////////////////////// |
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| 294 | // @ f_line : [in] line index in FBF reference (from 0 to fbf_height-1). |
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| 295 | // @ f_p_min : [in] first pixel in FBF line. |
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| 296 | // @ f_p_max : [in] last pixel in FBF line (excluded). |
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| 297 | // @ window_xp : [in] extended pointer on checked window . |
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| 298 | // @ t_buffer : [out] local pointer on target buffer to be updated. |
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| 299 | /////////////////////////////////////////////////////////////////////////////////////// |
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| 300 | __attribute__ ((noinline)) static void handle_one_window( uint32_t f_line, |
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| 301 | uint32_t f_p_min, |
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| 302 | uint32_t f_p_max, |
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| 303 | xptr_t window_xp, |
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| 304 | uint8_t * t_buffer ) |
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| 305 | { |
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| 306 | // get remote window descriptor cluster and local pointer |
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| 307 | cxy_t window_cxy = GET_CXY( window_xp ); |
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| 308 | fbf_window_t * window_ptr = GET_PTR( window_xp ); |
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| 309 | |
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| 310 | // get remote window min/max coordinates in FBF reference |
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| 311 | uint32_t w_l_min = hal_remote_l32( XPTR( window_cxy , &window_ptr->l_min ) ); |
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| 312 | uint32_t w_p_min = hal_remote_l32( XPTR( window_cxy , &window_ptr->p_min ) ); |
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| 313 | uint32_t w_height = hal_remote_l32( XPTR( window_cxy , &window_ptr->height ) ); |
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| 314 | uint32_t w_width = hal_remote_l32( XPTR( window_cxy , &window_ptr->width ) ); |
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| 315 | uint32_t w_l_max = w_l_min + w_height; |
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| 316 | uint32_t w_p_max = w_p_min + w_width; |
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| 317 | |
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| 318 | // does nothing if partial FBF line does not overlap the window |
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| 319 | if( (f_line < w_l_min) || (f_line >= w_l_max) || |
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| 320 | (f_p_max < w_p_min) || (f_p_min >= w_p_max) ) return; |
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| 321 | |
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| 322 | // get pointer on window buffer in user space |
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| 323 | uint8_t * w_buffer = hal_remote_lpt( XPTR( window_cxy , &window_ptr->buffer ) ); |
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| 324 | |
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| 325 | // get min & max indexes for pixels to be moved in FBF reference |
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| 326 | uint32_t f_pixel_min = (f_p_min < w_p_min) ? w_p_min : f_p_min; |
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| 327 | uint32_t f_pixel_max = (f_p_max < w_p_max) ? f_p_max : w_p_max; |
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| 328 | |
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| 329 | // compute number of pixels to move from w_buffer to f_buffer |
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| 330 | uint32_t npixels = f_pixel_max - f_pixel_min; |
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| 331 | |
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| 332 | // compute offset in target buffer |
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| 333 | uint32_t t_offset = f_pixel_min - f_p_min; |
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| 334 | |
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| 335 | // compute line index in window |
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| 336 | uint32_t w_line = f_line - w_l_min; |
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| 337 | |
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| 338 | // compute offset in window buffer |
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| 339 | uint32_t w_offset = (w_line * w_height) + f_pixel_min - w_p_min; |
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| 340 | |
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| 341 | // move pixels from w_buffer (user space) to t_buffer in kernel space |
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| 342 | hal_copy_from_uspace( XPTR( local_cxy , &t_buffer[t_offset] ), |
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| 343 | &w_buffer[w_offset], |
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| 344 | npixels ); |
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| 345 | |
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| 346 | } // end handle_one_window() |
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| 347 | |
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| 348 | //////////////////////////////////////////////////////////////////////////////////////// |
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| 349 | // This static function is called by dev_fbf_refresh_window(), dev_fbf_move_window(), |
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| 350 | // dev_fbf_resize_window(), and dev_fbf_delete_window(). It updates all lines of the |
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| 351 | // window identified by the <window_xp>, <line_first>, and <line_last>> arguments. |
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| 352 | // It scan all registered windows to take into account the overlap priorities defined |
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| 353 | // by the windows xlist. It does not take the lock protecting the xlist, that must be |
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| 354 | // taken by the calling function. |
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| 355 | //////////////////////////////////////////////////////////////////////////////////////// |
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| 356 | // @ window_xp : [in] extended pointer on window defining the FBF pixels to refresh. |
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| 357 | // @ line_first : [in] first line index. |
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| 358 | // @ line_last : [in] last line index (excluded). |
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| 359 | //////////////////////////////////////////////////////////////////////////////////////// |
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| 360 | error_t fbf_update( xptr_t window_xp, |
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| 361 | uint32_t line_first, |
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| 362 | uint32_t line_last ) |
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| 363 | { |
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| 364 | uint32_t line; // iterator to scan the FBF lines |
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| 365 | uint32_t pixel; // iterator to scan pixels in one FBF line |
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| 366 | xptr_t iter_xp; // iterator to scan the list of windows |
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| 367 | error_t error; |
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| 368 | |
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| 369 | // this intermediate buffer stores one line in |
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| 370 | // target window, to handle other windows overlap |
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| 371 | uint8_t line_buffer[CONFIG_FBF_WINDOWS_MAX_WIDTH]; |
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| 372 | |
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| 373 | // get pointer on calling thread and core lid |
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| 374 | thread_t * this = CURRENT_THREAD; |
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| 375 | |
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| 376 | // get window cluster and local pointer |
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| 377 | cxy_t window_cxy = GET_CXY( window_xp ); |
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| 378 | fbf_window_t * window_ptr = GET_PTR( window_xp ); |
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| 379 | |
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| 380 | #if DEBUG_DEV_FBF |
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| 381 | uint32_t wid = hal_remote_l32( XPTR( window_cxy , &window_ptr->wid ) ); |
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| 382 | uint32_t lid = this->core->lid; |
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| 383 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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| 384 | if( DEBUG_DEV_FBF < cycle ) |
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| 385 | printk("\n[%s] core[%x,%d] enter / wid %d / cycle %d\n", |
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| 386 | __FUNCTION__, local_cxy, lid, wid, cycle ); |
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| 387 | #endif |
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| 388 | |
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| 389 | // get pointers on FBF chdev |
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| 390 | xptr_t fbf_xp = chdev_dir.fbf[0]; |
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| 391 | cxy_t fbf_cxy = GET_CXY( fbf_xp ); |
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| 392 | chdev_t * fbf_ptr = GET_PTR( fbf_xp ); |
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| 393 | |
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| 394 | // get frame buffer width |
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| 395 | uint32_t fbf_width = hal_remote_l32( XPTR( fbf_cxy , &fbf_ptr->ext.fbf.width ) ); |
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| 396 | |
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| 397 | // get pointer on driver command function |
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| 398 | dev_cmd_t * cmd = hal_remote_lpt( XPTR( fbf_cxy , &fbf_ptr->cmd ) ); |
---|
| 399 | |
---|
| 400 | // build extended pointers on windows xlist root |
---|
| 401 | xptr_t windows_root_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_root ); |
---|
| 402 | |
---|
| 403 | // get window size and coordinates |
---|
| 404 | uint32_t p_min = hal_remote_l32( XPTR( window_cxy , &window_ptr->p_min ) ); |
---|
| 405 | uint32_t l_min = hal_remote_l32( XPTR( window_cxy , &window_ptr->l_min ) ); |
---|
| 406 | uint32_t w_pixels = hal_remote_l32( XPTR( window_cxy , &window_ptr->width ) ); |
---|
| 407 | |
---|
| 408 | error = 0; |
---|
| 409 | |
---|
| 410 | // loop on target window lines (FBF coordinates) |
---|
| 411 | for( line = l_min + line_first ; line < (l_min + line_last) ; line++ ) |
---|
| 412 | { |
---|
| 413 | // reset the line buffer to default value |
---|
| 414 | for( pixel = 0 ; pixel < w_pixels ; pixel++ ) line_buffer[pixel] = 127; |
---|
| 415 | |
---|
| 416 | // loop on all windows |
---|
| 417 | XLIST_FOREACH( windows_root_xp , iter_xp ) |
---|
| 418 | { |
---|
| 419 | // get pointers on remote window |
---|
| 420 | xptr_t tgt_xp = XLIST_ELEMENT( iter_xp , fbf_window_t , xlist ); |
---|
| 421 | fbf_window_t * tgt_ptr = GET_PTR( window_xp ); |
---|
| 422 | cxy_t tgt_cxy = GET_CXY( window_xp ); |
---|
| 423 | |
---|
| 424 | bool_t hidden = hal_remote_l32( XPTR( tgt_cxy , &tgt_ptr->hidden ) ); |
---|
| 425 | |
---|
| 426 | // fill the line_buf for this window if not hidden |
---|
| 427 | if( hidden == false ) handle_one_window( line, // line index |
---|
| 428 | p_min, // pixel_min |
---|
| 429 | p_min + w_pixels, // pixel_max |
---|
| 430 | tgt_xp, // window_xp |
---|
| 431 | line_buffer ); |
---|
| 432 | } // end for windows |
---|
| 433 | |
---|
| 434 | // compute offset in FBF |
---|
| 435 | uint32_t fbf_offset = p_min + (line * fbf_width); |
---|
| 436 | |
---|
| 437 | // register command in calling thread descriptor |
---|
| 438 | this->fbf_cmd.dev_xp = fbf_xp; |
---|
| 439 | this->fbf_cmd.type = FBF_DRIVER_KERNEL_WRITE; |
---|
| 440 | this->fbf_cmd.buffer = line_buffer; |
---|
| 441 | this->fbf_cmd.npixels = w_pixels; |
---|
| 442 | this->fbf_cmd.offset = fbf_offset; |
---|
| 443 | |
---|
| 444 | // call driver to display one line |
---|
| 445 | cmd( XPTR( local_cxy , this ) ); |
---|
| 446 | |
---|
| 447 | error |= this->fbf_cmd.error; |
---|
| 448 | |
---|
| 449 | } // end for lines |
---|
| 450 | |
---|
| 451 | #if DEBUG_DEV_FBF |
---|
| 452 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 453 | if( DEBUG_DEV_FBF < cycle ) |
---|
| 454 | printk("\n[%s] core[%x,%d] exit / wid %d / cycle %d\n", |
---|
| 455 | __FUNCTION__, local_cxy, this->core->lid, wid, cycle ); |
---|
| 456 | #endif |
---|
| 457 | |
---|
| 458 | // return I/O operation status |
---|
| 459 | return error; |
---|
| 460 | |
---|
| 461 | } // end fbf_update() |
---|
| 462 | |
---|
| 463 | ////////////////////////////////////////////// |
---|
| 464 | error_t dev_fbf_delete_window( uint32_t wid ) |
---|
| 465 | { |
---|
| 466 | kmem_req_t req; |
---|
| 467 | |
---|
| 468 | thread_t * this = CURRENT_THREAD; |
---|
| 469 | process_t * process = this->process; |
---|
| 470 | |
---|
| 471 | #if DEBUG_DEV_FBF |
---|
| 472 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 473 | if( DEBUG_DEV_FBF < cycle ) |
---|
| 474 | printk("\n[%s] thread[%x,%x] enters : wid %d / cycle %d\n", |
---|
| 475 | __FUNCTION__ , process->pid, this->trdid, wid, cycle ); |
---|
| 476 | #endif |
---|
| 477 | |
---|
| 478 | // get cluster and pointers on FBF chdev |
---|
| 479 | xptr_t fbf_xp = chdev_dir.fbf[0]; |
---|
| 480 | cxy_t fbf_cxy = GET_CXY( fbf_xp ); |
---|
| 481 | chdev_t * fbf_ptr = GET_PTR( fbf_xp ); |
---|
| 482 | |
---|
| 483 | // build extended pointers on windows lock, and wid allocator |
---|
| 484 | xptr_t windows_lock_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_lock ); |
---|
| 485 | xptr_t wid_bitmap_xp = XPTR( fbf_cxy , fbf_ptr->ext.fbf.windows_bitmap ); |
---|
| 486 | |
---|
| 487 | // build extended pointer on relevant entry in windows_tbl[] array |
---|
| 488 | xptr_t windows_tbl_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_tbl[wid] ); |
---|
| 489 | |
---|
| 490 | // get extended pointer on remote window descriptor |
---|
| 491 | xptr_t window_xp = hal_remote_l64( windows_tbl_xp ); |
---|
| 492 | |
---|
| 493 | if( window_xp == XPTR_NULL ) |
---|
| 494 | { |
---|
| 495 | printk("\n[ERROR] in %s / thread[%x,%x] / wid %d non registered\n", |
---|
| 496 | __FUNCTION__, process->pid, this->trdid, wid ); |
---|
| 497 | return -1; |
---|
| 498 | } |
---|
| 499 | |
---|
| 500 | // get cluster and local pointer on remote window |
---|
| 501 | cxy_t window_cxy = GET_CXY( window_xp ); |
---|
| 502 | fbf_window_t * window_ptr = GET_PTR( window_xp ); |
---|
| 503 | |
---|
| 504 | // get process owner PID |
---|
| 505 | pid_t owner_pid = hal_remote_l32( XPTR( window_cxy , &window_ptr->pid ) ); |
---|
| 506 | |
---|
| 507 | // check caller PID / owner PID |
---|
| 508 | if( owner_pid != process->pid ) |
---|
| 509 | { |
---|
| 510 | printk("\n[ERROR] in %s : caller PID (%x) != owner PID (%x)\n", |
---|
| 511 | __FUNCTION__, process->pid , owner_pid ); |
---|
| 512 | return -1; |
---|
| 513 | } |
---|
| 514 | |
---|
| 515 | // get associated buffer, and number of lines |
---|
| 516 | uint8_t * buffer = hal_remote_lpt( XPTR( window_cxy , &window_ptr->buffer ) ); |
---|
| 517 | uint32_t nlines = hal_remote_l32( XPTR( window_cxy , &window_ptr->height ) ); |
---|
| 518 | |
---|
| 519 | // 1. take the lock protecting windows in write mode |
---|
| 520 | remote_rwlock_wr_acquire( windows_lock_xp ); |
---|
| 521 | |
---|
| 522 | // 2. update the FBF window |
---|
| 523 | fbf_update( window_xp , 0 , nlines ); |
---|
| 524 | |
---|
| 525 | // 3. remove the window from windows_tbl[] array |
---|
| 526 | hal_remote_s64( windows_tbl_xp , XPTR_NULL ); |
---|
| 527 | |
---|
| 528 | // 4. remove the window from xlist |
---|
| 529 | xlist_unlink( XPTR( window_cxy , &window_ptr->xlist ) ); |
---|
| 530 | |
---|
| 531 | // 5. release wid to bitmap |
---|
| 532 | bitmap_remote_clear( wid_bitmap_xp , wid ); |
---|
| 533 | |
---|
| 534 | // 6. release the lock protecting windows in write mode |
---|
| 535 | remote_rwlock_wr_release( windows_lock_xp ); |
---|
| 536 | |
---|
| 537 | // 7. release memory allocated for window descriptor |
---|
| 538 | req.type = KMEM_KCM; |
---|
| 539 | req.ptr = window_ptr; |
---|
| 540 | kmem_remote_free( window_cxy , &req ); |
---|
| 541 | |
---|
| 542 | // 8. release the associated vseg |
---|
| 543 | vmm_global_delete_vseg( process , (intptr_t)buffer ); |
---|
| 544 | |
---|
| 545 | #if DEBUG_DEV_FBF |
---|
| 546 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 547 | if( DEBUG_DEV_FBF < cycle ) |
---|
| 548 | printk("\n[%s] thread[%x,%x] exit / cycle %d\n", |
---|
| 549 | __FUNCTION__ , process->pid, this->trdid, cycle ); |
---|
| 550 | #endif |
---|
| 551 | |
---|
| 552 | return 0; |
---|
| 553 | |
---|
| 554 | } // end dev_fbf_delete_window() |
---|
| 555 | |
---|
| 556 | //////////////////////////////////////////// |
---|
| 557 | error_t dev_fbf_move_window( uint32_t wid, |
---|
| 558 | uint32_t l_min, |
---|
| 559 | uint32_t p_min ) |
---|
| 560 | { |
---|
| 561 | thread_t * this = CURRENT_THREAD; |
---|
| 562 | process_t * process = this->process; |
---|
| 563 | |
---|
| 564 | #if DEBUG_DEV_FBF |
---|
| 565 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 566 | if( DEBUG_DEV_FBF < cycle ) |
---|
| 567 | printk("\n[%s] thread[%x,%x] enters : wid %d / l_min %d / p_min %d / cycle %d\n", |
---|
| 568 | __FUNCTION__ , process->pid, this->trdid, wid, l_min, p_min, cycle ); |
---|
| 569 | #endif |
---|
| 570 | |
---|
| 571 | // get cluster and pointers on FBF chdev |
---|
| 572 | xptr_t fbf_xp = chdev_dir.fbf[0]; |
---|
| 573 | cxy_t fbf_cxy = GET_CXY( fbf_xp ); |
---|
| 574 | chdev_t * fbf_ptr = GET_PTR( fbf_xp ); |
---|
| 575 | |
---|
| 576 | // build extended pointers on windows lock and root |
---|
| 577 | xptr_t windows_lock_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_lock ); |
---|
| 578 | xptr_t windows_root_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_root ); |
---|
| 579 | |
---|
| 580 | // build extended pointer on relevant entry in windows_tbl[] array |
---|
| 581 | xptr_t windows_tbl_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_tbl[wid] ); |
---|
| 582 | |
---|
| 583 | // get extended pointer on remote window descriptor |
---|
| 584 | xptr_t window_xp = hal_remote_l64( windows_tbl_xp ); |
---|
| 585 | |
---|
| 586 | if( window_xp == XPTR_NULL ) |
---|
| 587 | { |
---|
| 588 | printk("\n[ERROR] in %s / thread[%x,%x] / wid %d non registered\n", |
---|
| 589 | __FUNCTION__, process->pid, this->trdid, wid ); |
---|
| 590 | return -1; |
---|
| 591 | } |
---|
| 592 | |
---|
| 593 | // get cluster and local pointer for remote window |
---|
| 594 | cxy_t window_cxy = GET_CXY( window_xp ); |
---|
| 595 | fbf_window_t * window_ptr = GET_PTR( window_xp ); |
---|
| 596 | |
---|
| 597 | // get process owner PID, coordinates, and number of lines |
---|
| 598 | pid_t owner_pid = hal_remote_l32( XPTR( window_cxy , &window_ptr->pid ) ); |
---|
| 599 | uint32_t p_zero = hal_remote_l32( XPTR( window_cxy , &window_ptr->p_min ) ); |
---|
| 600 | uint32_t l_zero = hal_remote_l32( XPTR( window_cxy , &window_ptr->l_min ) ); |
---|
| 601 | uint32_t nlines = hal_remote_l32( XPTR( window_cxy , &window_ptr->height ) ); |
---|
| 602 | |
---|
| 603 | // check caller PID / owner PID |
---|
| 604 | if( owner_pid != process->pid ) |
---|
| 605 | { |
---|
| 606 | printk("\n[ERROR] in %s : caller PID (%x) != owner PID (%x)\n", |
---|
| 607 | __FUNCTION__, process->pid , owner_pid ); |
---|
| 608 | return -1; |
---|
| 609 | } |
---|
| 610 | |
---|
| 611 | // does nothing if no change |
---|
| 612 | if( (p_zero == p_min) && (l_zero == l_min) ) return 0; |
---|
| 613 | |
---|
| 614 | // 1. take the lock protecting windows in write mode |
---|
| 615 | remote_rwlock_wr_acquire( windows_lock_xp ); |
---|
| 616 | |
---|
| 617 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 618 | printk("\n[%s] lock taken\n", __FUNCTION__ ); |
---|
| 619 | #endif |
---|
| 620 | |
---|
| 621 | // 2. gives the window the lowest priority |
---|
| 622 | xptr_t xlist_entry_xp = XPTR( window_cxy , &window_ptr->xlist ); |
---|
| 623 | xlist_unlink( xlist_entry_xp ); |
---|
| 624 | xlist_add_first( windows_root_xp , xlist_entry_xp ); |
---|
| 625 | |
---|
| 626 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 627 | printk("\n[%s] set low priority \n", __FUNCTION__ ); |
---|
| 628 | #endif |
---|
| 629 | |
---|
| 630 | // 3. set the "hidden" flag in window descriptor |
---|
| 631 | hal_remote_s32( XPTR( window_cxy , &window_ptr->hidden ) , true ); |
---|
| 632 | |
---|
| 633 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 634 | printk("\n[%s] hidden set\n", __FUNCTION__ ); |
---|
| 635 | #endif |
---|
| 636 | |
---|
| 637 | // 4. refresh the FBF for the current window position |
---|
| 638 | fbf_update( window_xp , 0 , nlines ); |
---|
| 639 | |
---|
| 640 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 641 | printk("\n[%s] refreshed old position\n", __FUNCTION__ ); |
---|
| 642 | #endif |
---|
| 643 | |
---|
| 644 | // 5. set the new coordinates in the window descriptor, |
---|
| 645 | hal_remote_s32( XPTR( window_cxy , &window_ptr->l_min ), l_min ); |
---|
| 646 | hal_remote_s32( XPTR( window_cxy , &window_ptr->p_min ), p_min ); |
---|
| 647 | |
---|
| 648 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 649 | printk("\n[%s] l_min & p_min updated\n", __FUNCTION__ ); |
---|
| 650 | #endif |
---|
| 651 | |
---|
| 652 | // 6. gives the window the highest priority |
---|
| 653 | xlist_unlink( xlist_entry_xp ); |
---|
| 654 | xlist_add_last( windows_root_xp , xlist_entry_xp ); |
---|
| 655 | |
---|
| 656 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 657 | printk("\n[%s] set high priority\n", __FUNCTION__ ); |
---|
| 658 | #endif |
---|
| 659 | |
---|
| 660 | // 7. reset the "hidden" flag in window descriptor |
---|
| 661 | hal_remote_s32( XPTR( window_cxy , &window_ptr->hidden ) , false ); |
---|
| 662 | |
---|
| 663 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 664 | printk("\n[%s] hidden reset\n", __FUNCTION__ ); |
---|
| 665 | #endif |
---|
| 666 | |
---|
| 667 | // 8. refresh the FBF for the new window position |
---|
| 668 | fbf_update( window_xp , 0 , nlines ); |
---|
| 669 | |
---|
| 670 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 671 | printk("\n[%s] refresh new position\n", __FUNCTION__ ); |
---|
| 672 | #endif |
---|
| 673 | |
---|
| 674 | // 9. release the lock protecting windows in write mode |
---|
| 675 | remote_rwlock_wr_release( windows_lock_xp ); |
---|
| 676 | |
---|
| 677 | #if DEBUG_DEV_FBF |
---|
| 678 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 679 | if( DEBUG_DEV_FBF < cycle ) |
---|
| 680 | printk("\n[%s] thread[%x,%x] exit / cycle %d\n", |
---|
| 681 | __FUNCTION__ , process->pid, this->trdid, cycle ); |
---|
| 682 | #endif |
---|
| 683 | |
---|
| 684 | return 0; |
---|
| 685 | |
---|
| 686 | } // end dev_fbf_move_window() |
---|
| 687 | |
---|
| 688 | ///////////////////////////////////////////// |
---|
| 689 | error_t dev_fbf_resize_window( uint32_t wid, |
---|
| 690 | uint32_t width, |
---|
| 691 | uint32_t height ) |
---|
| 692 | { |
---|
| 693 | thread_t * this = CURRENT_THREAD; |
---|
| 694 | process_t * process = this->process; |
---|
| 695 | |
---|
| 696 | #if DEBUG_DEV_FBF |
---|
| 697 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 698 | if( DEBUG_DEV_FBF < cycle ) |
---|
| 699 | printk("\n[%s] thread[%x,%x] enters : wid %d / width %d / height %d / cycle %d\n", |
---|
| 700 | __FUNCTION__ , process->pid , this->trdid , wid, width , height , cycle ); |
---|
| 701 | #endif |
---|
| 702 | |
---|
| 703 | // get cluster and pointers on FBF chdev |
---|
| 704 | xptr_t fbf_xp = chdev_dir.fbf[0]; |
---|
| 705 | cxy_t fbf_cxy = GET_CXY( fbf_xp ); |
---|
| 706 | chdev_t * fbf_ptr = GET_PTR( fbf_xp ); |
---|
| 707 | |
---|
| 708 | // build extended pointers on windows lock and root |
---|
| 709 | xptr_t windows_lock_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_lock ); |
---|
| 710 | xptr_t windows_root_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_root ); |
---|
| 711 | |
---|
| 712 | // build extended pointer on relevant entry in windows_tbl[] array |
---|
| 713 | xptr_t windows_tbl_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_tbl[wid] ); |
---|
| 714 | |
---|
| 715 | // get extended pointer on remote window descriptor |
---|
| 716 | xptr_t window_xp = hal_remote_l64( windows_tbl_xp ); |
---|
| 717 | |
---|
| 718 | if( window_xp == XPTR_NULL ) |
---|
| 719 | { |
---|
| 720 | printk("\n[ERROR] in %s / thread[%x,%x] / wid %d non registered\n", |
---|
| 721 | __FUNCTION__, process->pid, this->trdid, wid ); |
---|
| 722 | return -1; |
---|
| 723 | } |
---|
| 724 | |
---|
| 725 | // get cluster and local pointer for remote window |
---|
| 726 | cxy_t window_cxy = GET_CXY( window_xp ); |
---|
| 727 | fbf_window_t * window_ptr = GET_PTR( window_xp ); |
---|
| 728 | |
---|
| 729 | // get process owner PID, width, height, and buffer |
---|
| 730 | pid_t owner_pid = hal_remote_l32( XPTR( window_cxy , &window_ptr->pid ) ); |
---|
| 731 | uint32_t nlines = hal_remote_l32( XPTR( window_cxy , &window_ptr->height ) ); |
---|
| 732 | uint32_t npixels = hal_remote_l32( XPTR( window_cxy , &window_ptr->width ) ); |
---|
| 733 | void * base = hal_remote_lpt( XPTR( window_cxy , &window_ptr->buffer ) ); |
---|
| 734 | |
---|
| 735 | // check caller PID / owner PID |
---|
| 736 | if( owner_pid != process->pid ) |
---|
| 737 | { |
---|
| 738 | printk("\n[ERROR] in %s : caller PID (%x) != owner PID (%x)\n", |
---|
| 739 | __FUNCTION__, process->pid , owner_pid ); |
---|
| 740 | return -1; |
---|
| 741 | } |
---|
| 742 | |
---|
| 743 | // does nothing if no change |
---|
| 744 | if( (width == npixels) && (height == nlines) ) return 0; |
---|
| 745 | |
---|
| 746 | // compute old_size and new size |
---|
| 747 | uint32_t old_size = nlines * npixels; |
---|
| 748 | uint32_t new_size = width * height; |
---|
| 749 | |
---|
| 750 | // 1. take the lock protecting windows in write mode |
---|
| 751 | remote_rwlock_wr_acquire( windows_lock_xp ); |
---|
| 752 | |
---|
| 753 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 754 | printk("\n[%s] lock taken\n", __FUNCTION__ ); |
---|
| 755 | #endif |
---|
| 756 | |
---|
| 757 | // 2. gives the window the lowest priority (remove, then add first) |
---|
| 758 | xptr_t xlist_entry_xp = XPTR( window_cxy , &window_ptr->xlist ); |
---|
| 759 | xlist_unlink( xlist_entry_xp ); |
---|
| 760 | xlist_add_first( windows_root_xp , xlist_entry_xp ); |
---|
| 761 | |
---|
| 762 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 763 | printk("\n[%s] set low priority\n", __FUNCTION__ ); |
---|
| 764 | #endif |
---|
| 765 | |
---|
| 766 | // 3. set the "hidden" flag in window descriptor |
---|
| 767 | hal_remote_s32( XPTR( window_cxy , &window_ptr->hidden ) , true ); |
---|
| 768 | |
---|
| 769 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 770 | printk("\n[%s] hidden set\n", __FUNCTION__ ); |
---|
| 771 | #endif |
---|
| 772 | |
---|
| 773 | // 4. refresh the FBF for the current window size |
---|
| 774 | fbf_update( window_xp , 0 , nlines ); |
---|
| 775 | |
---|
| 776 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 777 | printk("\n[%s] refreshed old window\n", __FUNCTION__ ); |
---|
| 778 | #endif |
---|
| 779 | |
---|
| 780 | // 5. set the new width & height in the window descriptor, |
---|
| 781 | hal_remote_s32( XPTR( window_cxy , &window_ptr->width ), width ); |
---|
| 782 | hal_remote_s32( XPTR( window_cxy , &window_ptr->height ), height ); |
---|
| 783 | |
---|
| 784 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 785 | printk("\n[%s] width & height updated\n", __FUNCTION__ ); |
---|
| 786 | #endif |
---|
| 787 | |
---|
| 788 | // 6. resize vseg if required |
---|
| 789 | vmm_global_resize_vseg( process, (intptr_t)base, (intptr_t)base, width * height ); |
---|
| 790 | |
---|
| 791 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 792 | printk("\n[%s] vseg resized\n", __FUNCTION__ ); |
---|
| 793 | #endif |
---|
| 794 | |
---|
| 795 | // 7. fill buffer extension if required |
---|
| 796 | if( new_size > old_size ) memset( base + old_size , 0 , new_size - old_size ); |
---|
| 797 | |
---|
| 798 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 799 | printk("\n[%s] buffer extension initialized\n", __FUNCTION__ ); |
---|
| 800 | #endif |
---|
| 801 | |
---|
| 802 | // 8. gives the window the highest priority |
---|
| 803 | xlist_unlink( xlist_entry_xp ); |
---|
| 804 | xlist_add_last( windows_root_xp , xlist_entry_xp ); |
---|
| 805 | |
---|
| 806 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 807 | printk("\n[%s] set high priority\n", __FUNCTION__ ); |
---|
| 808 | #endif |
---|
| 809 | |
---|
| 810 | // 9. reset the "hidden" flag in window descriptor |
---|
| 811 | hal_remote_s32( XPTR( window_cxy , &window_ptr->hidden ) , false ); |
---|
| 812 | |
---|
| 813 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 814 | printk("\n[%s] hidden reset\n", __FUNCTION__ ); |
---|
| 815 | #endif |
---|
| 816 | |
---|
| 817 | // 10. refresh the FBF for the new window position |
---|
| 818 | fbf_update( window_xp , 0 , height ); |
---|
| 819 | |
---|
| 820 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 821 | printk("\n[%s] refresh new position\n", __FUNCTION__ ); |
---|
| 822 | #endif |
---|
| 823 | |
---|
| 824 | // 11. release the lock protecting windows in write mode |
---|
| 825 | remote_rwlock_wr_release( windows_lock_xp ); |
---|
| 826 | |
---|
| 827 | #if DEBUG_DEV_FBF |
---|
| 828 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 829 | if( DEBUG_DEV_FBF < cycle ) |
---|
| 830 | printk("\n[%s] thread[%x,%x] exit / cycle %d\n", |
---|
| 831 | __FUNCTION__ , process->pid, this->trdid, cycle ); |
---|
| 832 | #endif |
---|
| 833 | |
---|
| 834 | return 0; |
---|
| 835 | |
---|
| 836 | } // end dev_fbf_resize_window() |
---|
| 837 | |
---|
| 838 | /////////////////////////////////////////////// |
---|
| 839 | error_t dev_fbf_refresh_window( uint32_t wid, |
---|
| 840 | uint32_t line_first, |
---|
| 841 | uint32_t line_last ) |
---|
| 842 | { |
---|
| 843 | // get local pointers on calling thread and process |
---|
| 844 | thread_t * this = CURRENT_THREAD; |
---|
| 845 | process_t * process = this->process; |
---|
| 846 | |
---|
| 847 | #if DEBUG_DEV_FBF |
---|
| 848 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 849 | if( DEBUG_DEV_FBF < cycle ) |
---|
| 850 | printk("\n[%s] thread[%x,%x] enters for wid %d / first %d / last %d / cycle %d\n", |
---|
| 851 | __FUNCTION__ , process->pid, this->trdid, wid, line_first, line_last, cycle ); |
---|
| 852 | #endif |
---|
| 853 | |
---|
| 854 | // get cluster and pointers on FBF chdev |
---|
| 855 | xptr_t fbf_xp = chdev_dir.fbf[0]; |
---|
| 856 | cxy_t fbf_cxy = GET_CXY( fbf_xp ); |
---|
| 857 | chdev_t * fbf_ptr = GET_PTR( fbf_xp ); |
---|
| 858 | |
---|
| 859 | // build extended pointer on windows lock |
---|
| 860 | xptr_t windows_lock_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_lock ); |
---|
| 861 | |
---|
| 862 | // build extended pointer on relevant entry in windows_tbl[] array |
---|
| 863 | xptr_t windows_tbl_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_tbl[wid] ); |
---|
| 864 | |
---|
| 865 | // get pointers on remote window descriptor |
---|
| 866 | xptr_t window_xp = hal_remote_l64( windows_tbl_xp ); |
---|
| 867 | cxy_t window_cxy = GET_CXY( window_xp ); |
---|
| 868 | fbf_window_t * window_ptr = GET_PTR( window_xp ); |
---|
| 869 | |
---|
| 870 | // check <wid> argument |
---|
| 871 | if( window_xp == XPTR_NULL ) |
---|
| 872 | { |
---|
| 873 | printk("\n[ERROR] in %s / thread[%x,%x] / wid %d non registered\n", |
---|
| 874 | __FUNCTION__, process->pid, this->trdid, wid ); |
---|
| 875 | return -1; |
---|
| 876 | } |
---|
| 877 | |
---|
| 878 | // get process owner PID |
---|
| 879 | pid_t owner_pid = hal_remote_l32( XPTR( window_cxy , &window_ptr->pid ) ); |
---|
| 880 | |
---|
| 881 | // check caller PID / owner PID |
---|
| 882 | if( owner_pid != process->pid ) |
---|
| 883 | { |
---|
| 884 | printk("\n[ERROR] in %s : caller PID (%x) != owner PID (%x)\n", |
---|
| 885 | __FUNCTION__, process->pid , owner_pid ); |
---|
| 886 | return -1; |
---|
| 887 | } |
---|
| 888 | |
---|
| 889 | // get number of lines in window |
---|
| 890 | uint32_t nlines = hal_remote_l32( XPTR( window_cxy , &window_ptr->height ) ); |
---|
| 891 | |
---|
| 892 | // check <line_first> and <line_last> arguments |
---|
| 893 | if( (line_first >= nlines) || (line_last > nlines) || (line_first >= line_last) ) |
---|
| 894 | { |
---|
| 895 | printk("\n[ERROR] in %s : illegal (l_first %d , l_last %d) / height %d\n", |
---|
| 896 | __FUNCTION__, line_first, line_last, nlines ); |
---|
| 897 | return -1; |
---|
| 898 | } |
---|
| 899 | |
---|
| 900 | // take the lock protecting windows xlist in read mode |
---|
| 901 | remote_rwlock_rd_acquire( windows_lock_xp ); |
---|
| 902 | |
---|
| 903 | // update FBF |
---|
| 904 | fbf_update( window_xp , line_first , line_last ); |
---|
| 905 | |
---|
| 906 | // release the lock protecting windows xlist in write mode |
---|
| 907 | remote_rwlock_rd_release( windows_lock_xp ); |
---|
| 908 | |
---|
| 909 | #if DEBUG_DEV_FBF |
---|
| 910 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 911 | if( DEBUG_DEV_FBF < cycle ) |
---|
| 912 | printk("\n[%s] thread[%x,%x] exit for wid %d / cycle %d\n", |
---|
| 913 | __FUNCTION__, process->pid, this->trdid, wid, cycle ); |
---|
| 914 | #endif |
---|
| 915 | |
---|
| 916 | return 0; |
---|
| 917 | |
---|
| 918 | } // end dev_fbf_refresh_window() |
---|
| 919 | |
---|
| 920 | /////////////////////////////////////////////// |
---|
| 921 | // TODO Deprecated : january 2020 [AG] |
---|
| 922 | /////////////////////////////////////////////// |
---|
| 923 | error_t dev_fbf_move_data( bool_t is_write, |
---|
[647] | 924 | void * user_buffer, |
---|
[657] | 925 | uint32_t npixels, |
---|
[647] | 926 | uint32_t offset ) |
---|
[3] | 927 | { |
---|
[647] | 928 | // get pointer on calling thread |
---|
| 929 | thread_t * this = CURRENT_THREAD; |
---|
[3] | 930 | |
---|
[647] | 931 | #if DEBUG_DEV_FBF |
---|
| 932 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 933 | if( DEBUG_DEV_FBF < cycle ) |
---|
[657] | 934 | printk("\n[%s] thread[%x,%x] : buffer %x / npixels %d / offset %x / cycle %d\n", |
---|
[647] | 935 | __FUNCTION__ , this->process->pid, this->trdid, |
---|
[657] | 936 | user_buffer, npixels, offset, cycle ); |
---|
[647] | 937 | #endif |
---|
[3] | 938 | |
---|
[647] | 939 | // get pointers on FBF chdev |
---|
| 940 | xptr_t fbf_xp = chdev_dir.fbf[0]; |
---|
| 941 | cxy_t fbf_cxy = GET_CXY( fbf_xp ); |
---|
| 942 | chdev_t * fbf_ptr = GET_PTR( fbf_xp ); |
---|
[3] | 943 | |
---|
[647] | 944 | // get frame buffer width and height |
---|
[565] | 945 | uint32_t width = hal_remote_l32 ( XPTR( fbf_cxy , &fbf_ptr->ext.fbf.width ) ); |
---|
| 946 | uint32_t height = hal_remote_l32 ( XPTR( fbf_cxy , &fbf_ptr->ext.fbf.height ) ); |
---|
[3] | 947 | |
---|
[657] | 948 | // check offset and npixels versus FBF size |
---|
| 949 | if( ((offset + npixels) > (width * height)) ) |
---|
| 950 | { |
---|
| 951 | printk("\n[ERROR] in %s : offset (%d) + npixels (%d) / width (%d) / height (%d)\n", |
---|
| 952 | __FUNCTION__, offset, npixels, width, height ); |
---|
| 953 | return -1; |
---|
| 954 | } |
---|
[3] | 955 | |
---|
[647] | 956 | // register command in calling thread descriptor |
---|
| 957 | this->fbf_cmd.dev_xp = fbf_xp; |
---|
[657] | 958 | this->fbf_cmd.type = is_write ? FBF_DRIVER_USER_WRITE : FBF_DRIVER_USER_READ; |
---|
[647] | 959 | this->fbf_cmd.buffer = user_buffer; |
---|
| 960 | this->fbf_cmd.offset = offset; |
---|
[657] | 961 | this->fbf_cmd.npixels = npixels; |
---|
[3] | 962 | |
---|
[647] | 963 | // get driver command function |
---|
| 964 | dev_cmd_t * cmd = (dev_cmd_t *)hal_remote_lpt( XPTR( fbf_cxy , &fbf_ptr->cmd ) ); |
---|
[3] | 965 | |
---|
[647] | 966 | // call driver |
---|
| 967 | cmd( XPTR( local_cxy , this ) ); |
---|
[3] | 968 | |
---|
[647] | 969 | error_t error = this->fbf_cmd.error; |
---|
[3] | 970 | |
---|
[647] | 971 | #if DEBUG_DEV_FBF |
---|
[471] | 972 | cycle = (uint32_t)hal_get_cycles(); |
---|
[647] | 973 | if( DEBUG_DEV_FBF < cycle ) |
---|
[657] | 974 | printk("\n[%s] thread[%x,%x] exit / cycle %d\n", |
---|
| 975 | __FUNCTION__ , this->process->pid, this->trdid, cycle ); |
---|
[437] | 976 | #endif |
---|
| 977 | |
---|
[647] | 978 | // return I/O operation status |
---|
| 979 | return error; |
---|
[3] | 980 | |
---|
[647] | 981 | } // end dev_fbf_move_data() |
---|
[657] | 982 | |
---|
| 983 | |
---|