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Rev 2131 Rev 2307
Line 36... Line 36...
36 
 
 36 
 
37 
phandle ofw_chosen;
 37 
phandle ofw_chosen;
38 
ihandle ofw_stdout;
 38 
ihandle ofw_stdout;
39 
phandle ofw_root;
 39 
phandle ofw_root;
40 
ihandle ofw_mmu;
 40 
ihandle ofw_mmu;
- 
 
 41 
ihandle ofw_memory_prop;
41 
phandle ofw_memory;
 42 
phandle ofw_memory;
42 
phandle ofw_aliases;
 43 
phandle ofw_aliases;
43 
 
 44 
 
44 
void ofw_init(void)
 45 
void ofw_init(void)
45 
{
 46 
{
46 
    ofw_chosen = ofw_find_device("/chosen");
 47 
    ofw_chosen = ofw_find_device("/chosen");
47 
    if (ofw_chosen == -1)
 48 
    if (ofw_chosen == -1)
48 
        halt();
 49 
        halt();
49 
   
 50 
   
50 
    if (ofw_get_property(ofw_chosen, "stdout",  &ofw_stdout, sizeof(ofw_stdout)) <= 0)
 51 
    if (ofw_get_property(ofw_chosen, "stdout", &ofw_stdout, sizeof(ofw_stdout)) <= 0)
51 
        ofw_stdout = 0;
 52 
        ofw_stdout = 0;
52 
   
 53 
   
53 
    ofw_root = ofw_find_device("/");
 54 
    ofw_root = ofw_find_device("/");
54 
    if (ofw_root == -1) {
 55 
    if (ofw_root == -1) {
55 
        puts("\r\nError: Unable to find / device, halted.\r\n");
 56 
        puts("\r\nError: Unable to find / device, halted.\r\n");
56 
        halt();
 57 
        halt();
57 
    }
 58 
    }
58 
   
 59 
   
59 
    if (ofw_get_property(ofw_chosen, "mmu",  &ofw_mmu, sizeof(ofw_mmu)) <= 0) {
 60 
    if (ofw_get_property(ofw_chosen, "mmu", &ofw_mmu, sizeof(ofw_mmu)) <= 0) {
60 
        puts("\r\nError: Unable to get mmu property, halted.\r\n");
 61 
        puts("\r\nError: Unable to get mmu property, halted.\r\n");
61 
        halt();
 62 
        halt();
62 
    }
 63 
    }
- 
 
 64 
    if (ofw_get_property(ofw_chosen, "memory", &ofw_memory_prop, sizeof(ofw_memory_prop)) <= 0) {
- 
 
 65 
        puts("\r\nError: Unable to get memory property, halted.\r\n");
- 
 
 66 
        halt();
- 
 
 67 
    }
63 
 
 68 
 
64 
    ofw_memory = ofw_find_device("/memory");
 69 
    ofw_memory = ofw_find_device("/memory");
65 
    if (ofw_memory == -1) {
 70 
    if (ofw_memory == -1) {
66 
        puts("\r\nError: Unable to find /memory device, halted.\r\n");
 71 
        puts("\r\nError: Unable to find /memory device, halted.\r\n");
67 
        halt();
 72 
        halt();
Line 198... Line 203...
198 
    if (sizeof(unative_t) == 8)
 203 
    if (sizeof(unative_t) == 8)
199 
        shift = 32;
 204 
        shift = 32;
200 
    else
 205 
    else
201 
        shift = 0;
 206 
        shift = 0;
202 
 
 207 
 
203 
    return (void *) ((result[2]<<shift)|result[3]);
 208 
    return (void *) ((result[2] << shift) | result[3]);
204 
}
 209 
}
205 
 
 210 
 
206 
void *ofw_claim(const void *virt, const int len)
 211 
void *ofw_claim_virt(const void *virt, const int len)
207 
{
 212 
{
208 
    ofw_arg_t retaddr;
 213 
    ofw_arg_t retaddr;
209 
    int shift;
 - 
 
210 
 
 214 
 
211 
    if (ofw_call("call-method", 5, 2, &retaddr, "claim", ofw_mmu, 0, len, virt) != 0) {
 215 
    if (ofw_call("call-method", 5, 2, &retaddr, "claim", ofw_mmu, 0, len, virt) != 0) {
212 
        puts("Error: MMU method claim() failed, halting.\n");
 216 
        puts("Error: MMU method claim() failed, halting.\n");
213 
        halt();
 217 
        halt();
214 
    }
 218 
    }
215 
 
 219 
 
216 
    return (void *) retaddr;
 220 
    return (void *) retaddr;
217 
}
 221 
}
218 
 
 222 
 
- 
 
 223 
void *ofw_claim_phys(const void *phys, const int len)
- 
 
 224 
{
- 
 
 225 
    ofw_arg_t retaddr[2];
- 
 
 226 
    int shift;
- 
 
 227 
 
- 
 
 228 
    if (sizeof(unative_t) == 8) {
- 
 
 229 
        shift = 32;
- 
 
 230 
        if (ofw_call("call-method", 6, 3, retaddr, "claim",
- 
 
 231 
            ofw_memory_prop, 0, len, ((uintptr_t) phys) >> shift,
- 
 
 232 
            ((uintptr_t) phys) & ((uint32_t) -1)) != 0) {
- 
 
 233 
            /*
- 
 
 234 
             * Note that this will help us to discover
- 
 
 235 
             * conflicts between OpenFirmware allocations
- 
 
 236 
             * and our use of physical memory.
- 
 
 237 
             * It is better to detect collisions here
- 
 
 238 
             * than to cope with weird errors later.
- 
 
 239 
             *
- 
 
 240 
             * So this is really not to make the loader
- 
 
 241 
             * more generic; it is here for debugging
- 
 
 242 
             * purposes.
- 
 
 243 
             */
- 
 
 244 
            puts("Error: memory method claim() failed, halting.\n");
- 
 
 245 
            halt();
- 
 
 246 
        }
- 
 
 247 
    } else {
- 
 
 248 
        shift = 0;
- 
 
 249 
        /*
- 
 
 250 
         * FIXME: the number of arguments is probably different...
- 
 
 251 
         */
- 
 
 252 
        puts("Error: 32-bit ofw_claim_phys not implemented.\n");
- 
 
 253 
        halt();
- 
 
 254 
    }
- 
 
 255 
 
- 
 
 256 
    return (void *) ((retaddr[0] << shift) | retaddr[1]);
- 
 
 257 
}
- 
 
 258 
 
219 
int ofw_map(const void *phys, const void *virt, const int size, const int mode)
 259 
int ofw_map(const void *phys, const void *virt, const int size, const int mode)
220 
{
 260 
{
221 
    uintptr_t phys_hi, phys_lo;
 261 
    uintptr_t phys_hi, phys_lo;
222 
 
 262 
 
223 
    if (sizeof(unative_t) == 8) {
 263 
    if (sizeof(unative_t) == 8) {
Line 228... Line 268...
228 
        phys_hi = 0;
 268 
        phys_hi = 0;
229 
        phys_lo = (uintptr_t) phys;
 269 
        phys_lo = (uintptr_t) phys;
230 
    }
 270 
    }
231 
 
 271 
 
232 
    return ofw_call("call-method", 7, 1, NULL, "map", ofw_mmu, mode, size, virt,
 272 
    return ofw_call("call-method", 7, 1, NULL, "map", ofw_mmu, mode, size, virt,
233 
        phys_hi, phys_lo);
 273 
        phys_hi, phys_lo);
234 
}
 274 
}
235 
 
 275 
 
236 
/** Save OpenFirmware physical memory map.
 276 
/** Save OpenFirmware physical memory map.
237 
 *
 277 
 *
238 
 * @param map Memory map structure where the map will be saved.
 278 
 * @param map Memory map structure where the map will be saved.
Line 250... Line 290...
250 
        return false;
 290 
        return false;
251 
 
 291 
 
252 
    int pos;
 292 
    int pos;
253 
    map->total = 0;
 293 
    map->total = 0;
254 
    map->count = 0;
 294 
    map->count = 0;
255 
    for (pos = 0; (pos < ret / sizeof(uint32_t)) && (map->count <
 295 
    for (pos = 0; (pos < ret / sizeof(uint32_t)) &&
256 
        MEMMAP_MAX_RECORDS); pos += ac + sc) {
 296 
        (map->count < MEMMAP_MAX_RECORDS); pos += ac + sc) {
257 
        void * start = (void *) ((uintptr_t) buf[pos + ac - 1]);
 297 
        void * start = (void *) ((uintptr_t) buf[pos + ac - 1]);
258 
        unsigned int size = buf[pos + ac + sc - 1];
 298 
        unsigned int size = buf[pos + ac + sc - 1];
259 
       
 299 
       
260 
        if (size > 0) {
 300 
        if (size > 0) {
261 
            map->zones[map->count].start = start;
 301 
            map->zones[map->count].start = start;