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sim: pru: invert sim_cpu storage

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This commit is contained in:
Mike Frysinger 2022-11-01 11:53:01 +05:45
parent 86ecb89bb7
commit 3d165c11f0
3 changed files with 31 additions and 8 deletions
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30
sim/pru/interp.c
View file

@ -130,6 +130,8 @@ write_regval (uint32_t val, uint32_t *reg, uint32_t regsel)
static uint32_t
imem_wordaddr_to_byteaddr (SIM_CPU *cpu, uint16_t wa)
{
struct pru_regset *pru_cpu = PRU_SIM_CPU (cpu);
return (((uint32_t) wa << 2) & IMEM_ADDR_MASK) | PC_ADDR_SPACE_MARKER;
}
@ -147,6 +149,7 @@ static inline void
pru_reg2dmem (SIM_CPU *cpu, uint32_t addr, unsigned int nbytes,
int regn, int regb)
{
struct pru_regset *pru_cpu = PRU_SIM_CPU (cpu);
/* GDB assumes unconditional access to all memories, so enable additional
checks only in standalone mode. */
bool standalone = (STATE_OPEN_KIND (CPU_STATE (cpu)) == SIM_OPEN_STANDALONE);
@ -196,6 +199,7 @@ static inline void
pru_dmem2reg (SIM_CPU *cpu, uint32_t addr, unsigned int nbytes,
int regn, int regb)
{
struct pru_regset *pru_cpu = PRU_SIM_CPU (cpu);
/* GDB assumes unconditional access to all memories, so enable additional
checks only in standalone mode. */
bool standalone = (STATE_OPEN_KIND (CPU_STATE (cpu)) == SIM_OPEN_STANDALONE);
@ -247,6 +251,7 @@ pru_dmem2reg (SIM_CPU *cpu, uint32_t addr, unsigned int nbytes,
static void
set_initial_gprs (SIM_CPU *cpu)
{
struct pru_regset *pru_cpu = PRU_SIM_CPU (cpu);
int i;
/* Set up machine just out of reset. */
@ -325,6 +330,8 @@ static void
pru_sim_xin_mac (SIM_DESC sd, SIM_CPU *cpu, unsigned int rd_regn,
unsigned int rdb, unsigned int length)
{
struct pru_regset *pru_cpu = PRU_SIM_CPU (cpu);
if (rd_regn < 25 || (rd_regn * 4 + rdb + length) > (27 + 1) * 4)
sim_io_error (sd, "XIN MAC: invalid transfer regn=%u.%u, length=%u\n",
rd_regn, rdb, length);
@ -348,6 +355,8 @@ static void
pru_sim_xin (SIM_DESC sd, SIM_CPU *cpu, unsigned int wba,
unsigned int rd_regn, unsigned int rdb, unsigned int length)
{
struct pru_regset *pru_cpu = PRU_SIM_CPU (cpu);
if (wba == 0)
{
pru_sim_xin_mac (sd, cpu, rd_regn, rdb, length);
@ -393,6 +402,7 @@ static void
pru_sim_xout_mac (SIM_DESC sd, SIM_CPU *cpu, unsigned int rd_regn,
unsigned int rdb, unsigned int length)
{
struct pru_regset *pru_cpu = PRU_SIM_CPU (cpu);
const int modereg_accessed = (rd_regn == 25);
/* Multiple Accumulate. */
@ -453,6 +463,8 @@ static void
pru_sim_xout (SIM_DESC sd, SIM_CPU *cpu, unsigned int wba,
unsigned int rd_regn, unsigned int rdb, unsigned int length)
{
struct pru_regset *pru_cpu = PRU_SIM_CPU (cpu);
if (wba == 0)
{
pru_sim_xout_mac (sd, cpu, rd_regn, rdb, length);
@ -482,6 +494,8 @@ static void
pru_sim_xchg (SIM_DESC sd, SIM_CPU *cpu, unsigned int wba,
unsigned int rd_regn, unsigned int rdb, unsigned int length)
{
struct pru_regset *pru_cpu = PRU_SIM_CPU (cpu);
if (wba == XFRID_SCRATCH_BANK_0 || wba == XFRID_SCRATCH_BANK_1
|| wba == XFRID_SCRATCH_BANK_2 || wba == XFRID_SCRATCH_BANK_PEER)
{
@ -508,6 +522,7 @@ pru_sim_xchg (SIM_DESC sd, SIM_CPU *cpu, unsigned int wba,
static void
pru_sim_syscall (SIM_DESC sd, SIM_CPU *cpu)
{
struct pru_regset *pru_cpu = PRU_SIM_CPU (cpu);
/* If someday TI confirms that the "reserved" HALT opcode fields
can be used for extra arguments, then maybe we can embed
the syscall number there. Until then, let's use R1. */
@ -525,6 +540,7 @@ static void
sim_step_once (SIM_DESC sd)
{
SIM_CPU *cpu = STATE_CPU (sd, 0);
struct pru_regset *pru_cpu = PRU_SIM_CPU (cpu);
const struct pru_opcode *op;
uint32_t inst;
uint32_t _RDVAL, OP2; /* intermediate values. */
@ -635,16 +651,20 @@ sim_engine_run (SIM_DESC sd,
static sim_cia
pru_pc_get (sim_cpu *cpu)
{
struct pru_regset *pru_cpu = PRU_SIM_CPU (cpu);
/* Present PC as byte address. */
return imem_wordaddr_to_byteaddr (cpu, cpu->pru_cpu.pc);
return imem_wordaddr_to_byteaddr (cpu, pru_cpu->pc);
}
/* Implement callback for standard CPU_PC_STORE routine. */
static void
pru_pc_set (sim_cpu *cpu, sim_cia pc)
{
struct pru_regset *pru_cpu = PRU_SIM_CPU (cpu);
/* PC given as byte address. */
cpu->pru_cpu.pc = imem_byteaddr_to_wordaddr (cpu, pc);
pru_cpu->pc = imem_byteaddr_to_wordaddr (cpu, pc);
}
@ -652,6 +672,8 @@ pru_pc_set (sim_cpu *cpu, sim_cia pc)
static int
pru_store_register (SIM_CPU *cpu, int rn, const void *memory, int length)
{
struct pru_regset *pru_cpu = PRU_SIM_CPU (cpu);
if (rn < NUM_REGS && rn >= 0)
{
if (length == 4)
@ -675,6 +697,7 @@ pru_store_register (SIM_CPU *cpu, int rn, const void *memory, int length)
static int
pru_fetch_register (SIM_CPU *cpu, int rn, void *memory, int length)
{
struct pru_regset *pru_cpu = PRU_SIM_CPU (cpu);
long ival;
if (rn < NUM_REGS && rn >= 0)
@ -751,7 +774,7 @@ sim_open (SIM_OPEN_KIND kind, host_callback *cb,
current_target_byte_order = BFD_ENDIAN_LITTLE;
/* The cpu data is kept in a separately allocated chunk of memory. */
if (sim_cpu_alloc_all (sd, 1) != SIM_RC_OK)
if (sim_cpu_alloc_all_extra (sd, 1, sizeof (struct pru_regset)) != SIM_RC_OK)
{
free_state (sd);
return 0;
@ -831,6 +854,7 @@ sim_create_inferior (SIM_DESC sd, struct bfd *prog_bfd,
char * const *argv, char * const *env)
{
SIM_CPU *cpu = STATE_CPU (sd, 0);
struct pru_regset *pru_cpu = PRU_SIM_CPU (cpu);
host_callback *cb = STATE_CALLBACK (sd);
SIM_ADDR addr;

2
sim/pru/pru.h
View file

@ -41,7 +41,7 @@
#define XFRID_SCRATCH_BANK_PEER 14
#define XFRID_MAX 255
#define CPU (cpu->pru_cpu)
#define CPU (*pru_cpu)
#define PC (CPU.pc)
#define PC_byteaddr ((PC << 2) | PC_ADDR_SPACE_MARKER)

7
sim/pru/sim-main.h
View file

@ -19,6 +19,8 @@
#ifndef PRU_SIM_MAIN
#define PRU_SIM_MAIN
#define SIM_HAVE_COMMON_SIM_CPU
#include <stdint.h>
#include <stddef.h>
#include "pru.h"
@ -78,9 +80,6 @@ struct pru_regset
int insts;
};
struct _sim_cpu {
struct pru_regset pru_cpu;
sim_cpu_base base;
};
#define PRU_SIM_CPU(cpu) ((struct pru_regset *) CPU_ARCH_DATA (cpu))
#endif /* PRU_SIM_MAIN */