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	dpavlin	14	/*
2	dpavlin	24	* Copyright (C) 2005-2006 Anders Gavare. All rights reserved.
3	dpavlin	14	*
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	dpavlin	20	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19	dpavlin	14	* 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	dpavlin	26	* $Id: cpu_hppa.c,v 1.14 2006/06/24 21:47:23 debug Exp $
29	dpavlin	14	*
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	dpavlin	18	cpu->invalidate_translation_caches =
75			hppa32_invalidate_translation_caches;
76	dpavlin	14	cpu->invalidate_code_translation =
77			hppa32_invalidate_code_translation;
78			} else {
79			cpu->update_translation_table = hppa_update_translation_table;
80	dpavlin	18	cpu->invalidate_translation_caches =
81			hppa_invalidate_translation_caches;
82	dpavlin	14	cpu->invalidate_code_translation =
83			hppa_invalidate_code_translation;
84			}
85
86	dpavlin	20	/* Only show name and caches etc for CPU nr 0 (in SMP machines): */
87	dpavlin	14	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	dpavlin	20	uint64_t offset;
129	dpavlin	14	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	dpavlin	24	debug("%08"PRIx32, (uint32_t) cpu->pc);
140	dpavlin	14	else
141	dpavlin	24	debug("%016"PRIx64, (uint64_t) cpu->pc);
142	dpavlin	14	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	dpavlin	24	debug(" r%02i = 0x%08"PRIx32" ", i,
150			(uint32_t)cpu->cd.hppa.r[i]);
151	dpavlin	14	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	dpavlin	24	debug(" r%02i = 0x%016"PRIx64" ", r,
161			(uint64_t) cpu->cd.hppa.r[r]);
162	dpavlin	14	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	dpavlin	24	* 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	dpavlin	14	* 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	dpavlin	20	* If running is 1, cpu->pc should be the address of the instruction.
247	dpavlin	14	*
248			* If running is 0, things that depend on the runtime environment (eg.
249	dpavlin	20	* register contents) will not be shown, and addr will be used instead of
250	dpavlin	14	* cpu->pc for relative addresses.
251			*/
252			int hppa_cpu_disassemble_instr(struct cpu cpu, unsigned char instr,
253	dpavlin	24	int running, uint64_t dumpaddr)
254	dpavlin	14	{
255	dpavlin	20	uint64_t offset;
256	dpavlin	14	uint32_t iword;
257	dpavlin	20	char *symbol;
258	dpavlin	14
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	dpavlin	24	debug("%08"PRIx32, (uint32_t) dumpaddr);
272	dpavlin	14	else
273	dpavlin	24	debug("%016"PRIx64, (uint64_t) dumpaddr);
274	dpavlin	14
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	dpavlin	24	debug(": %08"PRIx32"\t", (uint32_t) iword);
283	dpavlin	14
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