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/* Copyright 2017 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <errno.h>
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <libpdbg.h>
#include "main.h"
#include "optcmd.h"
#include "path.h"
#define REG_CR -5
#define REG_XER -4
#define REG_MEM -3
#define REG_MSR -2
#define REG_NIA -1
#define REG_R31 31
static void print_proc_reg(struct pdbg_target *target, int reg, uint64_t *value, int rc)
{
int proc_index, chip_index, thread_index;
thread_index = pdbg_target_index(target);
chip_index = pdbg_parent_index(target, "core");
proc_index = pdbg_parent_index(target, "pib");
printf("p%d:c%d:t%d: ", proc_index, chip_index, thread_index);
if (reg == REG_MSR)
printf("msr: ");
else if (reg == REG_NIA)
printf("nia: ");
else if (reg == REG_XER)
printf("xer: ");
else if (reg == REG_CR)
printf("cr: ");
else if (reg > REG_R31)
printf("spr%03d: ", reg - REG_R31);
else if (reg >= 0 && reg <= 31)
printf("gpr%02d: ", reg);
if (rc == 1) {
printf("Check threadstatus - not all threads on this chiplet are quiesced\n");
} else if (rc == 2)
printf("Thread in incorrect state\n");
else
printf("0x%016" PRIx64 "\n", *value);
}
static int putprocreg(struct pdbg_target *target, int reg, uint64_t *value)
{
uint32_t u32;
int rc;
if (reg == REG_MSR)
rc = ram_putmsr(target, *value);
else if (reg == REG_NIA)
rc = ram_putnia(target, *value);
else if (reg == REG_XER)
rc = ram_putxer(target, *value);
else if (reg == REG_CR) {
u32 = *value;
rc = ram_putcr(target, u32);
} else if (reg > REG_R31)
rc = ram_putspr(target, reg - REG_R31, *value);
else if (reg >= 0 && reg <= 31)
rc = ram_putgpr(target, reg, *value);
else
assert(0);
return rc;
}
static int getprocreg(struct pdbg_target *target, uint32_t reg, uint64_t *value)
{
uint32_t u32 = 0;
int rc;
if (reg == REG_MSR)
rc = ram_getmsr(target, value);
else if (reg == REG_NIA)
rc = ram_getnia(target, value);
else if (reg == REG_XER)
rc = ram_getxer(target, value);
else if (reg == REG_CR) {
rc = ram_getcr(target, &u32);
*value = u32;
} else if (reg > REG_R31)
rc = ram_getspr(target, reg - REG_R31, value);
else if (reg >= 0 && reg <= 31)
rc = ram_getgpr(target, reg, value);
else
assert(0);
return rc;
}
static int getreg(int reg)
{
struct pdbg_target *target;
int count = 0;
for_each_path_target_class("thread", target) {
uint64_t value = 0;
int rc;
if (pdbg_target_status(target) != PDBG_TARGET_ENABLED)
continue;
rc = getprocreg(target, reg, &value);
print_proc_reg(target, reg, &value, rc);
if (!rc)
count++;
}
return count;
}
static int putreg(int reg, uint64_t *value)
{
struct pdbg_target *target;
int count = 0;
for_each_path_target_class("thread", target) {
int rc;
if (pdbg_target_status(target) != PDBG_TARGET_ENABLED)
continue;
rc = putprocreg(target, reg, value);
print_proc_reg(target, reg, value, rc);
if (!rc)
count++;
}
return count;
}
static int getgpr(int gpr)
{
return getreg(gpr);
}
OPTCMD_DEFINE_CMD_WITH_ARGS(getgpr, getgpr, (GPR));
static int putgpr(int gpr, uint64_t data)
{
return putreg(gpr, &data);
}
OPTCMD_DEFINE_CMD_WITH_ARGS(putgpr, putgpr, (GPR, DATA));
static int getnia(void)
{
return getreg(REG_NIA);
}
OPTCMD_DEFINE_CMD(getnia, getnia);
static int putnia(uint64_t nia)
{
return putreg(REG_NIA, &nia);
}
OPTCMD_DEFINE_CMD_WITH_ARGS(putnia, putnia, (DATA));
static int getspr(int spr)
{
return getreg(spr + REG_R31);
}
OPTCMD_DEFINE_CMD_WITH_ARGS(getspr, getspr, (SPR));
static int putspr(int spr, uint64_t data)
{
return putreg(spr + REG_R31, &data);
}
OPTCMD_DEFINE_CMD_WITH_ARGS(putspr, putspr, (SPR, DATA));
static int getmsr(void)
{
return getreg(REG_MSR);
}
OPTCMD_DEFINE_CMD(getmsr, getmsr);
static int putmsr(uint64_t data)
{
return putreg(REG_MSR, &data);
}
OPTCMD_DEFINE_CMD_WITH_ARGS(putmsr, putmsr, (DATA));
static int getxer(void)
{
return getreg(REG_XER);
}
OPTCMD_DEFINE_CMD(getxer, getxer);
static int putxer(uint64_t data)
{
return putreg(REG_XER, &data);
}
OPTCMD_DEFINE_CMD_WITH_ARGS(putxer, putxer, (DATA));
static int getcr(void)
{
return getreg(REG_CR);
}
OPTCMD_DEFINE_CMD(getcr, getcr);
static int putcr(uint32_t data)
{
uint64_t u64 = data;
return putreg(REG_CR, &u64);
}
OPTCMD_DEFINE_CMD_WITH_ARGS(putcr, putcr, (DATA32));
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