Subversion Repositories HelenOS

Rev

Rev 2089 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 2089 Rev 2630
Line 72... Line 72...
72 
       
 72 
       
73 
        newmap = (uint8_t *) malloc(BITS2BYTES(bits), FRAME_ATOMIC);
 73 
        newmap = (uint8_t *) malloc(BITS2BYTES(bits), FRAME_ATOMIC);
74 
        if (!newmap)
 74 
        if (!newmap)
75 
            return ENOMEM;
 75 
            return ENOMEM;
76 
       
 76 
       
77 
        bitmap_initialize(&oldiomap, task->arch.iomap.map, task->arch.iomap.bits);
 77 
        bitmap_initialize(&oldiomap, task->arch.iomap.map,
- 
 
 78 
            task->arch.iomap.bits);
78 
        bitmap_initialize(&task->arch.iomap, newmap, bits);
 79 
        bitmap_initialize(&task->arch.iomap, newmap, bits);
79 
 
 80 
 
80 
        /*
 81 
        /*
81 
         * Mark the new range inaccessible.
 82 
         * Mark the new range inaccessible.
82 
         */
 83 
         */
83 
        bitmap_set_range(&task->arch.iomap, oldiomap.bits, bits - oldiomap.bits);
 84 
        bitmap_set_range(&task->arch.iomap, oldiomap.bits,
- 
 
 85 
            bits - oldiomap.bits);
84 
 
 86 
 
85 
        /*
 87 
        /*
86 
         * In case there really existed smaller iomap,
 88 
         * In case there really existed smaller iomap,
87 
         * copy its contents and deallocate it.
 89 
         * copy its contents and deallocate it.
88 
         */    
 90 
         */    
89 
        if (oldiomap.bits) {
 91 
        if (oldiomap.bits) {
90 
            bitmap_copy(&task->arch.iomap, &oldiomap, oldiomap.bits);
 92 
            bitmap_copy(&task->arch.iomap, &oldiomap,
- 
 
 93 
                oldiomap.bits);
91 
            free(oldiomap.map);
 94 
            free(oldiomap.map);
92 
        }
 95 
        }
93 
    }
 96 
    }
94 
 
 97 
 
95 
    /*
 98 
    /*
Line 125... Line 128...
125 
    ver = TASK->arch.iomapver;
 128 
    ver = TASK->arch.iomapver;
126 
    if ((bits = TASK->arch.iomap.bits)) {
 129 
    if ((bits = TASK->arch.iomap.bits)) {
127 
        bitmap_t iomap;
 130 
        bitmap_t iomap;
128 
   
 131 
   
129 
        ASSERT(TASK->arch.iomap.map);
 132 
        ASSERT(TASK->arch.iomap.map);
130 
        bitmap_initialize(&iomap, CPU->arch.tss->iomap, TSS_IOMAP_SIZE * 8);
 133 
        bitmap_initialize(&iomap, CPU->arch.tss->iomap,
- 
 
 134 
            TSS_IOMAP_SIZE * 8);
131 
        bitmap_copy(&iomap, &TASK->arch.iomap, TASK->arch.iomap.bits);
 135 
        bitmap_copy(&iomap, &TASK->arch.iomap, TASK->arch.iomap.bits);
132 
        /*
 136 
        /*
133 
         * It is safe to set the trailing eight bits because of the extra
 137 
         * It is safe to set the trailing eight bits because of the
134 
         * convenience byte in TSS_IOMAP_SIZE.
 138 
         * extra convenience byte in TSS_IOMAP_SIZE.
135 
         */
 139 
         */
136 
        bitmap_set_range(&iomap, ALIGN_UP(TASK->arch.iomap.bits, 8), 8);
 140 
        bitmap_set_range(&iomap, ALIGN_UP(TASK->arch.iomap.bits, 8), 8);
137 
    }
 141 
    }
138 
    spinlock_unlock(&TASK->lock);
 142 
    spinlock_unlock(&TASK->lock);
139 
 
 143