25 |
* SUCH DAMAGE. |
* SUCH DAMAGE. |
26 |
* |
* |
27 |
* |
* |
28 |
* $Id: memory_arm.c,v 1.27 2005/10/23 14:24:13 debug Exp $ |
* $Id: memory_arm.c,v 1.30 2005/11/05 17:56:46 debug Exp $ |
29 |
* |
* |
30 |
* |
* |
31 |
* TODO/NOTE: The B and/or C bits could also cause the return value to |
* TODO/NOTE: The B and/or C bits could also cause the return value to |
199 |
ap &= 3; |
ap &= 3; |
200 |
*return_addr = (d2 & 0xffff0000) | (vaddr & 0x0000ffff); |
*return_addr = (d2 & 0xffff0000) | (vaddr & 0x0000ffff); |
201 |
break; |
break; |
202 |
|
case 3: { |
203 |
|
static int first = 1; |
204 |
|
if (first) { |
205 |
|
fatal("[ WARNING! ARM course second " |
206 |
|
"level page table seems to contain" |
207 |
|
" tiny pages; treating as 4K ]\n"); |
208 |
|
first = 0; |
209 |
|
} |
210 |
|
} |
211 |
|
subpage = 1; |
212 |
case 2: /* 4KB page: */ |
case 2: /* 4KB page: */ |
213 |
ap3 = (d2 >> 10) & 3; |
ap3 = (d2 >> 10) & 3; |
214 |
ap2 = (d2 >> 8) & 3; |
ap2 = (d2 >> 8) & 3; |
220 |
case 0x800: ap = ap2; break; |
case 0x800: ap = ap2; break; |
221 |
default: ap = ap3; |
default: ap = ap3; |
222 |
} |
} |
223 |
|
/* Ugly hack: (TODO) */ |
224 |
|
if ((d2 & 3) == 3) |
225 |
|
ap = ap0; |
226 |
if (ap0 != ap1 || ap0 != ap2 || ap0 != ap3) |
if (ap0 != ap1 || ap0 != ap2 || ap0 != ap3) |
227 |
subpage = 1; |
subpage = 1; |
228 |
*return_addr = (d2 & 0xfffff000) | (vaddr & 0x00000fff); |
*return_addr = (d2 & 0xfffff000) | (vaddr & 0x00000fff); |
229 |
break; |
break; |
230 |
|
#if 0 |
231 |
case 3: /* 1KB page: */ |
case 3: /* 1KB page: */ |
232 |
subpage = 1; |
subpage = 1; |
233 |
ap = (d2 >> 4) & 3; |
ap = (d2 >> 4) & 3; |
234 |
*return_addr = (d2 & 0xfffffc00) | (vaddr & 0x000003ff); |
*return_addr = (d2 & 0xfffffc00) | (vaddr & 0x000003ff); |
235 |
break; |
break; |
236 |
|
#endif |
237 |
} |
} |
238 |
access = arm_check_access(cpu, ap, dav, user); |
access = arm_check_access(cpu, ap, dav, user); |
239 |
if (access > writeflag) |
if (access > writeflag) |