25 |
* SUCH DAMAGE. |
* SUCH DAMAGE. |
26 |
* |
* |
27 |
* |
* |
28 |
* $Id: memory_arm.c,v 1.30 2005/11/05 17:56:46 debug Exp $ |
* $Id: memory_arm.c,v 1.33 2006/01/25 05:51:12 debug Exp $ |
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* |
* |
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 |
37 |
#include <stdlib.h> |
#include <stdlib.h> |
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#include <string.h> |
#include <string.h> |
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|
|
40 |
|
#include "arm_cpu_types.h" |
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#include "cpu.h" |
#include "cpu.h" |
42 |
#include "memory.h" |
#include "memory.h" |
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#include "misc.h" |
#include "misc.h" |
200 |
ap &= 3; |
ap &= 3; |
201 |
*return_addr = (d2 & 0xffff0000) | (vaddr & 0x0000ffff); |
*return_addr = (d2 & 0xffff0000) | (vaddr & 0x0000ffff); |
202 |
break; |
break; |
203 |
case 3: { |
case 3: if (cpu->cd.arm.cpu_type.flags & ARM_XSCALE) { |
204 |
static int first = 1; |
/* 4KB page (Xscale) */ |
205 |
if (first) { |
subpage = 0; |
206 |
fatal("[ WARNING! ARM course second " |
} else { |
207 |
"level page table seems to contain" |
/* 1KB page */ |
208 |
" tiny pages; treating as 4K ]\n"); |
subpage = 1; |
209 |
first = 0; |
ap = (d2 >> 4) & 3; |
210 |
} |
*return_addr = (d2 & 0xfffffc00) | |
211 |
|
(vaddr & 0x000003ff); |
212 |
|
break; |
213 |
} |
} |
214 |
subpage = 1; |
/* NOTE: Fall-through for XScale! */ |
215 |
case 2: /* 4KB page: */ |
case 2: /* 4KB page: */ |
216 |
ap3 = (d2 >> 10) & 3; |
ap3 = (d2 >> 10) & 3; |
217 |
ap2 = (d2 >> 8) & 3; |
ap2 = (d2 >> 8) & 3; |
223 |
case 0x800: ap = ap2; break; |
case 0x800: ap = ap2; break; |
224 |
default: ap = ap3; |
default: ap = ap3; |
225 |
} |
} |
226 |
/* Ugly hack: (TODO) */ |
/* NOTE: Ugly hack for XScale: */ |
227 |
if ((d2 & 3) == 3) |
if ((d2 & 3) == 3) { |
228 |
|
/* Treated as 4KB page: */ |
229 |
ap = ap0; |
ap = ap0; |
230 |
if (ap0 != ap1 || ap0 != ap2 || ap0 != ap3) |
} else { |
231 |
subpage = 1; |
if (ap0 != ap1 || ap0 != ap2 || ap0 != ap3) |
232 |
|
subpage = 1; |
233 |
|
} |
234 |
*return_addr = (d2 & 0xfffff000) | (vaddr & 0x00000fff); |
*return_addr = (d2 & 0xfffff000) | (vaddr & 0x00000fff); |
235 |
break; |
break; |
|
#if 0 |
|
|
case 3: /* 1KB page: */ |
|
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subpage = 1; |
|
|
ap = (d2 >> 4) & 3; |
|
|
*return_addr = (d2 & 0xfffffc00) | (vaddr & 0x000003ff); |
|
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break; |
|
|
#endif |
|
236 |
} |
} |
237 |
access = arm_check_access(cpu, ap, dav, user); |
access = arm_check_access(cpu, ap, dav, user); |
238 |
if (access > writeflag) |
if (access > writeflag) |
266 |
fatal("{ arm memory fault: vaddr=0x%08x domain=%i dav=%i ap=%i " |
fatal("{ arm memory fault: vaddr=0x%08x domain=%i dav=%i ap=%i " |
267 |
"access=%i user=%i", (int)vaddr, domain, dav, ap, |
"access=%i user=%i", (int)vaddr, domain, dav, ap, |
268 |
access, user); |
access, user); |
269 |
fatal(" d=0x%08x d2=0x%08x }\n", d, d2); |
fatal(" d=0x%08x d2=0x%08x pc=0x%08x }\n", d, d2, (int)cpu->pc); |
270 |
} |
} |
271 |
|
|
272 |
if (instr) |
if (instr) |