src/cpus/cpu_hppa.c

/*
 *  Copyright (C) 2005-2006  Anders Gavare.  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright  
 *     notice, this list of conditions and the following disclaimer in the 
 *     documentation and/or other materials provided with the distribution.
 *  3. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 *  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *  ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE   
 *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 *  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 *  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 *  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 *  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 *  SUCH DAMAGE.
 *
 *
 *  $Id: cpu_hppa.c,v 1.14 2006/06/24 21:47:23 debug Exp $
 *
 *  HP PA-RISC CPU emulation.
 *
 *  TODO
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>

#include "cpu.h"
#include "machine.h"
#include "memory.h"
#include "misc.h"
#include "symbol.h"


#define DYNTRANS_DUALMODE_32
#include "tmp_hppa_head.c"


/*
 *  hppa_cpu_new():
 *
 *  Create a new HPPA cpu object.
 *
 *  Returns 1 on success, 0 if there was no matching HPPA processor with
 *  this cpu_type_name.
 */
int hppa_cpu_new(struct cpu *cpu, struct memory *mem, struct machine *machine,
        int cpu_id, char *cpu_type_name)
{
        if (strcasecmp(cpu_type_name, "HPPA") != 0)
                return 0;

        cpu->memory_rw = hppa_memory_rw;

        /*  TODO: per CPU type?  */
        cpu->byte_order = EMUL_LITTLE_ENDIAN;
        cpu->is_32bit = 1;
        cpu->cd.hppa.bits = 32;

        if (cpu->is_32bit) {
                cpu->update_translation_table = hppa32_update_translation_table;
                cpu->invalidate_translation_caches =
                    hppa32_invalidate_translation_caches;
                cpu->invalidate_code_translation =
                    hppa32_invalidate_code_translation;
        } else {
                cpu->update_translation_table = hppa_update_translation_table;
                cpu->invalidate_translation_caches =
                    hppa_invalidate_translation_caches;
                cpu->invalidate_code_translation =
                    hppa_invalidate_code_translation;
        }

        /*  Only show name and caches etc for CPU nr 0 (in SMP machines):  */
        if (cpu_id == 0) {
                debug("%s", cpu->name);
        }

        return 1;
}


/*
 *  hppa_cpu_list_available_types():
 *
 *  Print a list of available HPPA CPU types.
 */
void hppa_cpu_list_available_types(void)
{
        debug("HPPA\n");
        /*  TODO  */
}


/*
 *  hppa_cpu_dumpinfo():
 */
void hppa_cpu_dumpinfo(struct cpu *cpu)
{
        debug("\n");
        /*  TODO  */
}


/*
 *  hppa_cpu_register_dump():
 *
 *  Dump cpu registers in a relatively readable format.
 *
 *  gprs: set to non-zero to dump GPRs and some special-purpose registers.
 *  coprocs: set bit 0..3 to dump registers in coproc 0..3.
 */
void hppa_cpu_register_dump(struct cpu *cpu, int gprs, int coprocs)
{
        char *symbol;
        uint64_t offset;
        int i, x = cpu->cpu_id, nregs = 32;
        int bits32 = cpu->cd.hppa.bits == 32;

        if (gprs) {
                /*  Special registers (pc, ...) first:  */
                symbol = get_symbol_name(&cpu->machine->symbol_context,
                    cpu->pc, &offset);

                debug("cpu%i: pc  = 0x", x);
                if (bits32)
                        debug("%08"PRIx32, (uint32_t) cpu->pc);
                else
                        debug("%016"PRIx64, (uint64_t) cpu->pc);
                debug("  <%s>\n", symbol != NULL? symbol : " no symbol ");

                if (bits32) {
                        /*  32-bit:  */
                        for (i=0; i<nregs; i++) {
                                if ((i % 4) == 0)
                                        debug("cpu%i:", x);
                                debug(" r%02i = 0x%08"PRIx32" ", i,
                                    (uint32_t)cpu->cd.hppa.r[i]);
                                if ((i % 4) == 3)
                                        debug("\n");
                        }
                } else {
                        /*  64-bit:  */
                        for (i=0; i<nregs; i++) {
                                int r = (i >> 1) + ((i & 1) << 4);
                                if ((i % 2) == 0)
                                        debug("cpu%i:", x);
                                debug(" r%02i = 0x%016"PRIx64" ", r,
                                    (uint64_t) cpu->cd.hppa.r[r]);
                                if ((i % 2) == 1)
                                        debug("\n");
                        }
                }
        }
}


/*
 *  hppa_cpu_register_match():
 */
void hppa_cpu_register_match(struct machine *m, char *name,
        int writeflag, uint64_t *valuep, int *match_register)
{
        int cpunr = 0;

        /*  CPU number:  */

        /*  TODO  */

        /*  Register name:  */
        if (strcasecmp(name, "pc") == 0) {
                if (writeflag) {
                        m->cpus[cpunr]->pc = *valuep;
                } else
                        *valuep = m->cpus[cpunr]->pc;
                *match_register = 1;
        }
}


/*
 *  hppa_cpu_tlbdump():
 *
 *  Called from the debugger to dump the TLB in a readable format.
 *  x is the cpu number to dump, or -1 to dump all CPUs.
 *
 *  If rawflag is nonzero, then the TLB contents isn't formated nicely,
 *  just dumped.
 */
void hppa_cpu_tlbdump(struct machine *m, int x, int rawflag)
{
}


/*
 *  hppa_cpu_gdb_stub():
 *
 *  Execute a "remote GDB" command. Returns a newly allocated response string
 *  on success, NULL on failure.
 */
char *hppa_cpu_gdb_stub(struct cpu *cpu, char *cmd)
{
        fatal("hppa_cpu_gdb_stub(): TODO\n");
        return NULL;
}


/*
 *  hppa_cpu_interrupt():
 */
int hppa_cpu_interrupt(struct cpu *cpu, uint64_t irq_nr)
{
        fatal("hppa_cpu_interrupt(): TODO\n");
        return 0;
}


/*
 *  hppa_cpu_interrupt_ack():
 */
int hppa_cpu_interrupt_ack(struct cpu *cpu, uint64_t irq_nr)
{
        /*  fatal("hppa_cpu_interrupt_ack(): TODO\n");  */
        return 0;
}


/*
 *  hppa_cpu_disassemble_instr():
 *
 *  Convert an instruction word into human readable format, for instruction
 *  tracing.
 *
 *  If running is 1, cpu->pc should be the address of the instruction.
 *
 *  If running is 0, things that depend on the runtime environment (eg.
 *  register contents) will not be shown, and addr will be used instead of
 *  cpu->pc for relative addresses.
 */
int hppa_cpu_disassemble_instr(struct cpu *cpu, unsigned char *instr,
        int running, uint64_t dumpaddr)
{
        uint64_t offset;
        uint32_t iword;
        char *symbol;

        if (running)
                dumpaddr = cpu->pc;

        symbol = get_symbol_name(&cpu->machine->symbol_context,
            dumpaddr, &offset);
        if (symbol != NULL && offset==0)
                debug("<%s>\n", symbol);

        if (cpu->machine->ncpus > 1 && running)
                debug("cpu%i: ", cpu->cpu_id);

        if (cpu->cd.hppa.bits == 32)
                debug("%08"PRIx32, (uint32_t) dumpaddr);
        else
                debug("%016"PRIx64, (uint64_t) dumpaddr);

        if (cpu->byte_order == EMUL_BIG_ENDIAN)
                iword = (instr[0] << 24) + (instr[1] << 16) + (instr[2] << 8)
                    + instr[3];
        else
                iword = (instr[3] << 24) + (instr[2] << 16) + (instr[1] << 8)
                    + instr[0];

        debug(": %08"PRIx32"\t", (uint32_t) iword);

        /*
         *  Decode the instruction:
         */

        debug("TODO\n");

        return sizeof(iword);
}


#include "tmp_hppa_tail.c"

1	/*
2	* Copyright (C) 2005-2006 Anders Gavare. All rights reserved.
3	*
4	* Redistribution and use in source and binary forms, with or without
5	* modification, are permitted provided that the following conditions are met:
6	*
7	* 1. Redistributions of source code must retain the above copyright
8	* notice, this list of conditions and the following disclaimer.
9	* 2. Redistributions in binary form must reproduce the above copyright
10	* notice, this list of conditions and the following disclaimer in the
11	* documentation and/or other materials provided with the distribution.
12	* 3. The name of the author may not be used to endorse or promote products
13	* derived from this software without specific prior written permission.
14	*
15	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25	* SUCH DAMAGE.
26	*
27	*
28	* $Id: cpu_hppa.c,v 1.14 2006/06/24 21:47:23 debug Exp $
29	*
30	* HP PA-RISC CPU emulation.
31	*
32	* TODO
33	*/
34
35	#include <stdio.h>
36	#include <stdlib.h>
37	#include <string.h>
38	#include <ctype.h>
39
40	#include "cpu.h"
41	#include "machine.h"
42	#include "memory.h"
43	#include "misc.h"
44	#include "symbol.h"
45
46
47	#define DYNTRANS_DUALMODE_32
48	#include "tmp_hppa_head.c"
49
50
51	/*
52	* hppa_cpu_new():
53	*
54	* Create a new HPPA cpu object.
55	*
56	* Returns 1 on success, 0 if there was no matching HPPA processor with
57	* this cpu_type_name.
58	*/
59	int hppa_cpu_new(struct cpu cpu, struct memory mem, struct machine *machine,
60	int cpu_id, char *cpu_type_name)
61	{
62	if (strcasecmp(cpu_type_name, "HPPA") != 0)
63	return 0;
64
65	cpu->memory_rw = hppa_memory_rw;
66
67	/* TODO: per CPU type? */
68	cpu->byte_order = EMUL_LITTLE_ENDIAN;
69	cpu->is_32bit = 1;
70	cpu->cd.hppa.bits = 32;
71
72	if (cpu->is_32bit) {
73	cpu->update_translation_table = hppa32_update_translation_table;
74	cpu->invalidate_translation_caches =
75	hppa32_invalidate_translation_caches;
76	cpu->invalidate_code_translation =
77	hppa32_invalidate_code_translation;
78	} else {
79	cpu->update_translation_table = hppa_update_translation_table;
80	cpu->invalidate_translation_caches =
81	hppa_invalidate_translation_caches;
82	cpu->invalidate_code_translation =
83	hppa_invalidate_code_translation;
84	}
85
86	/* Only show name and caches etc for CPU nr 0 (in SMP machines): */
87	if (cpu_id == 0) {
88	debug("%s", cpu->name);
89	}
90
91	return 1;
92	}
93
94
95	/*
96	* hppa_cpu_list_available_types():
97	*
98	* Print a list of available HPPA CPU types.
99	*/
100	void hppa_cpu_list_available_types(void)
101	{
102	debug("HPPA\n");
103	/* TODO */
104	}
105
106
107	/*
108	* hppa_cpu_dumpinfo():
109	*/
110	void hppa_cpu_dumpinfo(struct cpu *cpu)
111	{
112	debug("\n");
113	/* TODO */
114	}
115
116
117	/*
118	* hppa_cpu_register_dump():
119	*
120	* Dump cpu registers in a relatively readable format.
121	*
122	* gprs: set to non-zero to dump GPRs and some special-purpose registers.
123	* coprocs: set bit 0..3 to dump registers in coproc 0..3.
124	*/
125	void hppa_cpu_register_dump(struct cpu *cpu, int gprs, int coprocs)
126	{
127	char *symbol;
128	uint64_t offset;
129	int i, x = cpu->cpu_id, nregs = 32;
130	int bits32 = cpu->cd.hppa.bits == 32;
131
132	if (gprs) {
133	/* Special registers (pc, ...) first: */
134	symbol = get_symbol_name(&cpu->machine->symbol_context,
135	cpu->pc, &offset);
136
137	debug("cpu%i: pc = 0x", x);
138	if (bits32)
139	debug("%08"PRIx32, (uint32_t) cpu->pc);
140	else
141	debug("%016"PRIx64, (uint64_t) cpu->pc);
142	debug(" <%s>\n", symbol != NULL? symbol : " no symbol ");
143
144	if (bits32) {
145	/* 32-bit: */
146	for (i=0; i<nregs; i++) {
147	if ((i % 4) == 0)
148	debug("cpu%i:", x);
149	debug(" r%02i = 0x%08"PRIx32" ", i,
150	(uint32_t)cpu->cd.hppa.r[i]);
151	if ((i % 4) == 3)
152	debug("\n");
153	}
154	} else {
155	/* 64-bit: */
156	for (i=0; i<nregs; i++) {
157	int r = (i >> 1) + ((i & 1) << 4);
158	if ((i % 2) == 0)
159	debug("cpu%i:", x);
160	debug(" r%02i = 0x%016"PRIx64" ", r,
161	(uint64_t) cpu->cd.hppa.r[r]);
162	if ((i % 2) == 1)
163	debug("\n");
164	}
165	}
166	}
167	}
168
169
170	/*
171	* hppa_cpu_register_match():
172	*/
173	void hppa_cpu_register_match(struct machine m, char name,
174	int writeflag, uint64_t valuep, int match_register)
175	{
176	int cpunr = 0;
177
178	/* CPU number: */
179
180	/* TODO */
181
182	/* Register name: */
183	if (strcasecmp(name, "pc") == 0) {
184	if (writeflag) {
185	m->cpus[cpunr]->pc = *valuep;
186	} else
187	*valuep = m->cpus[cpunr]->pc;
188	*match_register = 1;
189	}
190	}
191
192
193	/*
194	* hppa_cpu_tlbdump():
195	*
196	* Called from the debugger to dump the TLB in a readable format.
197	* x is the cpu number to dump, or -1 to dump all CPUs.
198	*
199	* If rawflag is nonzero, then the TLB contents isn't formated nicely,
200	* just dumped.
201	*/
202	void hppa_cpu_tlbdump(struct machine *m, int x, int rawflag)
203	{
204	}
205
206
207	/*
208	* hppa_cpu_gdb_stub():
209	*
210	* Execute a "remote GDB" command. Returns a newly allocated response string
211	* on success, NULL on failure.
212	*/
213	char hppa_cpu_gdb_stub(struct cpu cpu, char *cmd)
214	{
215	fatal("hppa_cpu_gdb_stub(): TODO\n");
216	return NULL;
217	}
218
219
220	/*
221	* hppa_cpu_interrupt():
222	*/
223	int hppa_cpu_interrupt(struct cpu *cpu, uint64_t irq_nr)
224	{
225	fatal("hppa_cpu_interrupt(): TODO\n");
226	return 0;
227	}
228
229
230	/*
231	* hppa_cpu_interrupt_ack():
232	*/
233	int hppa_cpu_interrupt_ack(struct cpu *cpu, uint64_t irq_nr)
234	{
235	/* fatal("hppa_cpu_interrupt_ack(): TODO\n"); */
236	return 0;
237	}
238
239
240	/*
241	* hppa_cpu_disassemble_instr():
242	*
243	* Convert an instruction word into human readable format, for instruction
244	* tracing.
245	*
246	* If running is 1, cpu->pc should be the address of the instruction.
247	*
248	* If running is 0, things that depend on the runtime environment (eg.
249	* register contents) will not be shown, and addr will be used instead of
250	* cpu->pc for relative addresses.
251	*/
252	int hppa_cpu_disassemble_instr(struct cpu cpu, unsigned char instr,
253	int running, uint64_t dumpaddr)
254	{
255	uint64_t offset;
256	uint32_t iword;
257	char *symbol;
258
259	if (running)
260	dumpaddr = cpu->pc;
261
262	symbol = get_symbol_name(&cpu->machine->symbol_context,
263	dumpaddr, &offset);
264	if (symbol != NULL && offset==0)
265	debug("<%s>\n", symbol);
266
267	if (cpu->machine->ncpus > 1 && running)
268	debug("cpu%i: ", cpu->cpu_id);
269
270	if (cpu->cd.hppa.bits == 32)
271	debug("%08"PRIx32, (uint32_t) dumpaddr);
272	else
273	debug("%016"PRIx64, (uint64_t) dumpaddr);
274
275	if (cpu->byte_order == EMUL_BIG_ENDIAN)
276	iword = (instr[0] << 24) + (instr[1] << 16) + (instr[2] << 8)
277	+ instr[3];
278	else
279	iword = (instr[3] << 24) + (instr[2] << 16) + (instr[1] << 8)
280	+ instr[0];
281
282	debug(": %08"PRIx32"\t", (uint32_t) iword);
283
284	/*
285	* Decode the instruction:
286	*/
287
288	debug("TODO\n");
289
290	return sizeof(iword);
291	}
292
293
294	#include "tmp_hppa_tail.c"
295