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qemu / qemu / 92707992103effc3e4f6f8a03da59e627acc1e34 / . / target / ppc / translate.c
blob: 0bc16d72515284c0d15a7b7ee43b163c7f14e844 [file] [log] [blame]
/*
* PowerPC emulation for qemu: main translation routines.
*
* Copyright (c) 2003-2007 Jocelyn Mayer
* Copyright (C) 2011 Freescale Semiconductor, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include "cpu.h"
#include "internal.h"
#include "exec/exec-all.h"
#include "tcg/tcg-op.h"
#include "tcg/tcg-op-gvec.h"
#include "qemu/host-utils.h"
#include "exec/helper-proto.h"
#include "exec/helper-gen.h"
#include "exec/translator.h"
#include "exec/log.h"
#include "qemu/atomic128.h"
#include "spr_common.h"
#include "power8-pmu.h"
#include "qemu/qemu-print.h"
#include "qapi/error.h"
#define HELPER_H "helper.h"
#include "exec/helper-info.c.inc"
#undef HELPER_H
#define CPU_SINGLE_STEP 0x1
#define CPU_BRANCH_STEP 0x2
/* Include definitions for instructions classes and implementations flags */
/* #define PPC_DEBUG_DISAS */
#ifdef PPC_DEBUG_DISAS
# define LOG_DISAS(...) qemu_log_mask(CPU_LOG_TB_IN_ASM, ## __VA_ARGS__)
#else
# define LOG_DISAS(...) do { } while (0)
#endif
/*****************************************************************************/
/* Code translation helpers */
/* global register indexes */
static char cpu_reg_names[10 * 3 + 22 * 4 /* GPR */
+ 10 * 4 + 22 * 5 /* SPE GPRh */
+ 8 * 5 /* CRF */];
static TCGv cpu_gpr[32];
static TCGv cpu_gprh[32];
static TCGv_i32 cpu_crf[8];
static TCGv cpu_nip;
static TCGv cpu_msr;
static TCGv cpu_ctr;
static TCGv cpu_lr;
#if defined(TARGET_PPC64)
static TCGv cpu_cfar;
#endif
static TCGv cpu_xer, cpu_so, cpu_ov, cpu_ca, cpu_ov32, cpu_ca32;
static TCGv cpu_reserve;
static TCGv cpu_reserve_length;
static TCGv cpu_reserve_val;
#if defined(TARGET_PPC64)
static TCGv cpu_reserve_val2;
#endif
static TCGv cpu_fpscr;
static TCGv_i32 cpu_access_type;
void ppc_translate_init(void)
{
int i;
char *p;
size_t cpu_reg_names_size;
p = cpu_reg_names;
cpu_reg_names_size = sizeof(cpu_reg_names);
for (i = 0; i < 8; i++) {
snprintf(p, cpu_reg_names_size, "crf%d", i);
cpu_crf[i] = tcg_global_mem_new_i32(tcg_env,
offsetof(CPUPPCState, crf[i]), p);
p += 5;
cpu_reg_names_size -= 5;
}
for (i = 0; i < 32; i++) {
snprintf(p, cpu_reg_names_size, "r%d", i);
cpu_gpr[i] = tcg_global_mem_new(tcg_env,
offsetof(CPUPPCState, gpr[i]), p);
p += (i < 10) ? 3 : 4;
cpu_reg_names_size -= (i < 10) ? 3 : 4;
snprintf(p, cpu_reg_names_size, "r%dH", i);
cpu_gprh[i] = tcg_global_mem_new(tcg_env,
offsetof(CPUPPCState, gprh[i]), p);
p += (i < 10) ? 4 : 5;
cpu_reg_names_size -= (i < 10) ? 4 : 5;
}
cpu_nip = tcg_global_mem_new(tcg_env,
offsetof(CPUPPCState, nip), "nip");
cpu_msr = tcg_global_mem_new(tcg_env,
offsetof(CPUPPCState, msr), "msr");
cpu_ctr = tcg_global_mem_new(tcg_env,
offsetof(CPUPPCState, ctr), "ctr");
cpu_lr = tcg_global_mem_new(tcg_env,
offsetof(CPUPPCState, lr), "lr");
#if defined(TARGET_PPC64)
cpu_cfar = tcg_global_mem_new(tcg_env,
offsetof(CPUPPCState, cfar), "cfar");
#endif
cpu_xer = tcg_global_mem_new(tcg_env,
offsetof(CPUPPCState, xer), "xer");
cpu_so = tcg_global_mem_new(tcg_env,
offsetof(CPUPPCState, so), "SO");
cpu_ov = tcg_global_mem_new(tcg_env,
offsetof(CPUPPCState, ov), "OV");
cpu_ca = tcg_global_mem_new(tcg_env,
offsetof(CPUPPCState, ca), "CA");
cpu_ov32 = tcg_global_mem_new(tcg_env,
offsetof(CPUPPCState, ov32), "OV32");
cpu_ca32 = tcg_global_mem_new(tcg_env,
offsetof(CPUPPCState, ca32), "CA32");
cpu_reserve = tcg_global_mem_new(tcg_env,
offsetof(CPUPPCState, reserve_addr),
"reserve_addr");
cpu_reserve_length = tcg_global_mem_new(tcg_env,
offsetof(CPUPPCState,
reserve_length),
"reserve_length");
cpu_reserve_val = tcg_global_mem_new(tcg_env,
offsetof(CPUPPCState, reserve_val),
"reserve_val");
#if defined(TARGET_PPC64)
cpu_reserve_val2 = tcg_global_mem_new(tcg_env,
offsetof(CPUPPCState, reserve_val2),
"reserve_val2");
#endif
cpu_fpscr = tcg_global_mem_new(tcg_env,
offsetof(CPUPPCState, fpscr), "fpscr");
cpu_access_type = tcg_global_mem_new_i32(tcg_env,
offsetof(CPUPPCState, access_type),
"access_type");
}
/* internal defines */
struct DisasContext {
DisasContextBase base;
target_ulong cia; /* current instruction address */
uint32_t opcode;
/* Routine used to access memory */
bool pr, hv, dr, le_mode;
bool lazy_tlb_flush;
bool need_access_type;
int mem_idx;
int access_type;
/* Translation flags */
MemOp default_tcg_memop_mask;
#if defined(TARGET_PPC64)
bool sf_mode;
bool has_cfar;
bool has_bhrb;
#endif
bool fpu_enabled;
bool altivec_enabled;
bool vsx_enabled;
bool spe_enabled;
bool tm_enabled;
bool gtse;
bool hr;
bool mmcr0_pmcc0;
bool mmcr0_pmcc1;
bool mmcr0_pmcjce;
bool pmc_other;
bool pmu_insn_cnt;
bool bhrb_enable;
ppc_spr_t *spr_cb; /* Needed to check rights for mfspr/mtspr */
int singlestep_enabled;
uint32_t flags;
uint64_t insns_flags;
uint64_t insns_flags2;
};
#define DISAS_EXIT DISAS_TARGET_0 /* exit to main loop, pc updated */
#define DISAS_EXIT_UPDATE DISAS_TARGET_1 /* exit to main loop, pc stale */
#define DISAS_CHAIN DISAS_TARGET_2 /* lookup next tb, pc updated */
#define DISAS_CHAIN_UPDATE DISAS_TARGET_3 /* lookup next tb, pc stale */
/* Return true iff byteswap is needed in a scalar memop */
static inline bool need_byteswap(const DisasContext *ctx)
{
#if TARGET_BIG_ENDIAN
return ctx->le_mode;
#else
return !ctx->le_mode;
#endif
}
/* True when active word size < size of target_long. */
#ifdef TARGET_PPC64
# define NARROW_MODE(C) (!(C)->sf_mode)
#else
# define NARROW_MODE(C) 0
#endif
struct opc_handler_t {
/* invalid bits for instruction 1 (Rc(opcode) == 0) */
uint32_t inval1;
/* invalid bits for instruction 2 (Rc(opcode) == 1) */
uint32_t inval2;
/* instruction type */
uint64_t type;
/* extended instruction type */
uint64_t type2;
/* handler */
void (*handler)(DisasContext *ctx);
};
static inline bool gen_serialize(DisasContext *ctx)
{
if (tb_cflags(ctx->base.tb) & CF_PARALLEL) {
/* Restart with exclusive lock. */
gen_helper_exit_atomic(tcg_env);
ctx->base.is_jmp = DISAS_NORETURN;
return false;
}
return true;
}
#if !defined(CONFIG_USER_ONLY)
#if defined(TARGET_PPC64)
static inline bool gen_serialize_core(DisasContext *ctx)
{
if (ctx->flags & POWERPC_FLAG_SMT) {
return gen_serialize(ctx);
}
return true;
}
#endif
static inline bool gen_serialize_core_lpar(DisasContext *ctx)
{
#if defined(TARGET_PPC64)
if (ctx->flags & POWERPC_FLAG_SMT_1LPAR) {
return gen_serialize(ctx);
}
#endif
return true;
}
#endif
/* SPR load/store helpers */
static inline void gen_load_spr(TCGv t, int reg)
{
tcg_gen_ld_tl(t, tcg_env, offsetof(CPUPPCState, spr[reg]));
}
static inline void gen_store_spr(int reg, TCGv t)
{
tcg_gen_st_tl(t, tcg_env, offsetof(CPUPPCState, spr[reg]));
}
static inline void gen_set_access_type(DisasContext *ctx, int access_type)
{
if (ctx->need_access_type && ctx->access_type != access_type) {
tcg_gen_movi_i32(cpu_access_type, access_type);
ctx->access_type = access_type;
}
}
static inline void gen_update_nip(DisasContext *ctx, target_ulong nip)
{
if (NARROW_MODE(ctx)) {
nip = (uint32_t)nip;
}
tcg_gen_movi_tl(cpu_nip, nip);
}
static void gen_exception_err_nip(DisasContext *ctx, uint32_t excp,
uint32_t error, target_ulong nip)
{
TCGv_i32 t0, t1;
gen_update_nip(ctx, nip);
t0 = tcg_constant_i32(excp);
t1 = tcg_constant_i32(error);
gen_helper_raise_exception_err(tcg_env, t0, t1);
ctx->base.is_jmp = DISAS_NORETURN;
}
static inline void gen_exception_err(DisasContext *ctx, uint32_t excp,
uint32_t error)
{
/*
* These are all synchronous exceptions, we set the PC back to the
* faulting instruction
*/
gen_exception_err_nip(ctx, excp, error, ctx->cia);
}
static void gen_exception_nip(DisasContext *ctx, uint32_t excp,
target_ulong nip)
{
TCGv_i32 t0;
gen_update_nip(ctx, nip);
t0 = tcg_constant_i32(excp);
gen_helper_raise_exception(tcg_env, t0);
ctx->base.is_jmp = DISAS_NORETURN;
}
static inline void gen_exception(DisasContext *ctx, uint32_t excp)
{
/*
* These are all synchronous exceptions, we set the PC back to the
* faulting instruction
*/
gen_exception_nip(ctx, excp, ctx->cia);
}
#if !defined(CONFIG_USER_ONLY)
static void gen_ppc_maybe_interrupt(DisasContext *ctx)
{
translator_io_start(&ctx->base);
gen_helper_ppc_maybe_interrupt(tcg_env);
}
#endif
/*
* Tells the caller what is the appropriate exception to generate and prepares
* SPR registers for this exception.
*
* The exception can be either POWERPC_EXCP_TRACE (on most PowerPCs) or
* POWERPC_EXCP_DEBUG (on BookE).
*/
static void gen_debug_exception(DisasContext *ctx, bool rfi_type)
{
#if !defined(CONFIG_USER_ONLY)
if (ctx->flags & POWERPC_FLAG_DE) {
target_ulong dbsr = 0;
if (ctx->singlestep_enabled & CPU_SINGLE_STEP) {
dbsr = DBCR0_ICMP;
} else {
/* Must have been branch */
dbsr = DBCR0_BRT;
}
TCGv t0 = tcg_temp_new();
gen_load_spr(t0, SPR_BOOKE_DBSR);
tcg_gen_ori_tl(t0, t0, dbsr);
gen_store_spr(SPR_BOOKE_DBSR, t0);
gen_helper_raise_exception(tcg_env,
tcg_constant_i32(POWERPC_EXCP_DEBUG));
ctx->base.is_jmp = DISAS_NORETURN;
} else {
if (!rfi_type) { /* BookS does not single step rfi type instructions */
TCGv t0 = tcg_temp_new();
tcg_gen_movi_tl(t0, ctx->cia);
gen_helper_book3s_trace(tcg_env, t0);
ctx->base.is_jmp = DISAS_NORETURN;
}
}
#endif
}
static inline void gen_inval_exception(DisasContext *ctx, uint32_t error)
{
/* Will be converted to program check if needed */
gen_exception_err(ctx, POWERPC_EXCP_HV_EMU, POWERPC_EXCP_INVAL | error);
}
static inline void gen_priv_exception(DisasContext *ctx, uint32_t error)
{
gen_exception_err(ctx, POWERPC_EXCP_PROGRAM, POWERPC_EXCP_PRIV | error);
}
static inline void gen_hvpriv_exception(DisasContext *ctx, uint32_t error)
{
/* Will be converted to program check if needed */
gen_exception_err(ctx, POWERPC_EXCP_HV_EMU, POWERPC_EXCP_PRIV | error);
}
/*****************************************************************************/
/* SPR READ/WRITE CALLBACKS */
void spr_noaccess(DisasContext *ctx, int gprn, int sprn)
{
#if 0
sprn = ((sprn >> 5) & 0x1F) | ((sprn & 0x1F) << 5);
printf("ERROR: try to access SPR %d !\n", sprn);
#endif
}
/* #define PPC_DUMP_SPR_ACCESSES */
/*
* Generic callbacks:
* do nothing but store/retrieve spr value
*/
static void spr_load_dump_spr(int sprn)
{
#ifdef PPC_DUMP_SPR_ACCESSES
TCGv_i32 t0 = tcg_constant_i32(sprn);
gen_helper_load_dump_spr(tcg_env, t0);
#endif
}
void spr_read_generic(DisasContext *ctx, int gprn, int sprn)
{
gen_load_spr(cpu_gpr[gprn], sprn);
spr_load_dump_spr(sprn);
}
static void spr_store_dump_spr(int sprn)
{
#ifdef PPC_DUMP_SPR_ACCESSES
TCGv_i32 t0 = tcg_constant_i32(sprn);
gen_helper_store_dump_spr(tcg_env, t0);
#endif
}
void spr_write_generic(DisasContext *ctx, int sprn, int gprn)
{
gen_store_spr(sprn, cpu_gpr[gprn]);
spr_store_dump_spr(sprn);
}
void spr_write_generic32(DisasContext *ctx, int sprn, int gprn)
{
#ifdef TARGET_PPC64
TCGv t0 = tcg_temp_new();
tcg_gen_ext32u_tl(t0, cpu_gpr[gprn]);
gen_store_spr(sprn, t0);
spr_store_dump_spr(sprn);
#else
spr_write_generic(ctx, sprn, gprn);
#endif
}
void spr_core_write_generic(DisasContext *ctx, int sprn, int gprn)
{
if (!(ctx->flags & POWERPC_FLAG_SMT)) {
spr_write_generic(ctx, sprn, gprn);
return;
}
if (!gen_serialize(ctx)) {
return;
}
gen_helper_spr_core_write_generic(tcg_env, tcg_constant_i32(sprn),
cpu_gpr[gprn]);
spr_store_dump_spr(sprn);
}
void spr_core_write_generic32(DisasContext *ctx, int sprn, int gprn)
{
TCGv t0;
if (!(ctx->flags & POWERPC_FLAG_SMT)) {
spr_write_generic32(ctx, sprn, gprn);
return;
}
if (!gen_serialize(ctx)) {
return;
}
t0 = tcg_temp_new();
tcg_gen_ext32u_tl(t0, cpu_gpr[gprn]);
gen_helper_spr_core_write_generic(tcg_env, tcg_constant_i32(sprn), t0);
spr_store_dump_spr(sprn);
}
void spr_core_lpar_write_generic(DisasContext *ctx, int sprn, int gprn)
{
if (ctx->flags & POWERPC_FLAG_SMT_1LPAR) {
spr_core_write_generic(ctx, sprn, gprn);
} else {
spr_write_generic(ctx, sprn, gprn);
}
}
static void spr_write_CTRL_ST(DisasContext *ctx, int sprn, int gprn)
{
/* This does not implement >1 thread */
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
tcg_gen_extract_tl(t0, cpu_gpr[gprn], 0, 1); /* Extract RUN field */
tcg_gen_shli_tl(t1, t0, 8); /* Duplicate the bit in TS */
tcg_gen_or_tl(t1, t1, t0);
gen_store_spr(sprn, t1);
}
void spr_write_CTRL(DisasContext *ctx, int sprn, int gprn)
{
if (!(ctx->flags & POWERPC_FLAG_SMT_1LPAR)) {
/* CTRL behaves as 1-thread in LPAR-per-thread mode */
spr_write_CTRL_ST(ctx, sprn, gprn);
goto out;
}
if (!gen_serialize(ctx)) {
return;
}
gen_helper_spr_write_CTRL(tcg_env, tcg_constant_i32(sprn),
cpu_gpr[gprn]);
out:
spr_store_dump_spr(sprn);
/*
* SPR_CTRL writes must force a new translation block,
* allowing the PMU to calculate the run latch events with
* more accuracy.
*/
ctx->base.is_jmp = DISAS_EXIT_UPDATE;
}
#if !defined(CONFIG_USER_ONLY)
void spr_write_clear(DisasContext *ctx, int sprn, int gprn)
{
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
gen_load_spr(t0, sprn);
tcg_gen_neg_tl(t1, cpu_gpr[gprn]);
tcg_gen_and_tl(t0, t0, t1);
gen_store_spr(sprn, t0);
}
void spr_access_nop(DisasContext *ctx, int sprn, int gprn)
{
}
#endif
/* SPR common to all PowerPC */
/* XER */
void spr_read_xer(DisasContext *ctx, int gprn, int sprn)
{
TCGv dst = cpu_gpr[gprn];
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
TCGv t2 = tcg_temp_new();
tcg_gen_mov_tl(dst, cpu_xer);
tcg_gen_shli_tl(t0, cpu_so, XER_SO);
tcg_gen_shli_tl(t1, cpu_ov, XER_OV);
tcg_gen_shli_tl(t2, cpu_ca, XER_CA);
tcg_gen_or_tl(t0, t0, t1);
tcg_gen_or_tl(dst, dst, t2);
tcg_gen_or_tl(dst, dst, t0);
if (is_isa300(ctx)) {
tcg_gen_shli_tl(t0, cpu_ov32, XER_OV32);
tcg_gen_or_tl(dst, dst, t0);
tcg_gen_shli_tl(t0, cpu_ca32, XER_CA32);
tcg_gen_or_tl(dst, dst, t0);
}
}
void spr_write_xer(DisasContext *ctx, int sprn, int gprn)
{
TCGv src = cpu_gpr[gprn];
/* Write all flags, while reading back check for isa300 */
tcg_gen_andi_tl(cpu_xer, src,
~((1u << XER_SO) |
(1u << XER_OV) | (1u << XER_OV32) |
(1u << XER_CA) | (1u << XER_CA32)));
tcg_gen_extract_tl(cpu_ov32, src, XER_OV32, 1);
tcg_gen_extract_tl(cpu_ca32, src, XER_CA32, 1);
tcg_gen_extract_tl(cpu_so, src, XER_SO, 1);
tcg_gen_extract_tl(cpu_ov, src, XER_OV, 1);
tcg_gen_extract_tl(cpu_ca, src, XER_CA, 1);
}
/* LR */
void spr_read_lr(DisasContext *ctx, int gprn, int sprn)
{
tcg_gen_mov_tl(cpu_gpr[gprn], cpu_lr);
}
void spr_write_lr(DisasContext *ctx, int sprn, int gprn)
{
tcg_gen_mov_tl(cpu_lr, cpu_gpr[gprn]);
}
#if defined(TARGET_PPC64) && !defined(CONFIG_USER_ONLY)
/* Debug facilities */
/* CFAR */
void spr_read_cfar(DisasContext *ctx, int gprn, int sprn)
{
tcg_gen_mov_tl(cpu_gpr[gprn], cpu_cfar);
}
void spr_write_cfar(DisasContext *ctx, int sprn, int gprn)
{
tcg_gen_mov_tl(cpu_cfar, cpu_gpr[gprn]);
}
/* Breakpoint */
void spr_write_ciabr(DisasContext *ctx, int sprn, int gprn)
{
translator_io_start(&ctx->base);
gen_helper_store_ciabr(tcg_env, cpu_gpr[gprn]);
}
/* Watchpoint */
void spr_write_dawr0(DisasContext *ctx, int sprn, int gprn)
{
translator_io_start(&ctx->base);
gen_helper_store_dawr0(tcg_env, cpu_gpr[gprn]);
}
void spr_write_dawrx0(DisasContext *ctx, int sprn, int gprn)
{
translator_io_start(&ctx->base);
gen_helper_store_dawrx0(tcg_env, cpu_gpr[gprn]);
}
#endif /* defined(TARGET_PPC64) && !defined(CONFIG_USER_ONLY) */
/* CTR */
void spr_read_ctr(DisasContext *ctx, int gprn, int sprn)
{
tcg_gen_mov_tl(cpu_gpr[gprn], cpu_ctr);
}
void spr_write_ctr(DisasContext *ctx, int sprn, int gprn)
{
tcg_gen_mov_tl(cpu_ctr, cpu_gpr[gprn]);
}
/* User read access to SPR */
/* USPRx */
/* UMMCRx */
/* UPMCx */
/* USIA */
/* UDECR */
void spr_read_ureg(DisasContext *ctx, int gprn, int sprn)
{
gen_load_spr(cpu_gpr[gprn], sprn + 0x10);
}
#if defined(TARGET_PPC64) && !defined(CONFIG_USER_ONLY)
void spr_write_ureg(DisasContext *ctx, int sprn, int gprn)
{
gen_store_spr(sprn + 0x10, cpu_gpr[gprn]);
}
#endif
/* SPR common to all non-embedded PowerPC */
/* DECR */
#if !defined(CONFIG_USER_ONLY)
void spr_read_decr(DisasContext *ctx, int gprn, int sprn)
{
translator_io_start(&ctx->base);
gen_helper_load_decr(cpu_gpr[gprn], tcg_env);
}
void spr_write_decr(DisasContext *ctx, int sprn, int gprn)
{
translator_io_start(&ctx->base);
gen_helper_store_decr(tcg_env, cpu_gpr[gprn]);
}
#endif
/* SPR common to all non-embedded PowerPC, except 601 */
/* Time base */
void spr_read_tbl(DisasContext *ctx, int gprn, int sprn)
{
translator_io_start(&ctx->base);
gen_helper_load_tbl(cpu_gpr[gprn], tcg_env);
}
void spr_read_tbu(DisasContext *ctx, int gprn, int sprn)
{
translator_io_start(&ctx->base);
gen_helper_load_tbu(cpu_gpr[gprn], tcg_env);
}
void spr_read_atbl(DisasContext *ctx, int gprn, int sprn)
{
gen_helper_load_atbl(cpu_gpr[gprn], tcg_env);
}
void spr_read_atbu(DisasContext *ctx, int gprn, int sprn)
{
gen_helper_load_atbu(cpu_gpr[gprn], tcg_env);
}
#if !defined(CONFIG_USER_ONLY)
void spr_write_tbl(DisasContext *ctx, int sprn, int gprn)
{
if (!gen_serialize_core_lpar(ctx)) {
return;
}
translator_io_start(&ctx->base);
gen_helper_store_tbl(tcg_env, cpu_gpr[gprn]);
}
void spr_write_tbu(DisasContext *ctx, int sprn, int gprn)
{
if (!gen_serialize_core_lpar(ctx)) {
return;
}
translator_io_start(&ctx->base);
gen_helper_store_tbu(tcg_env, cpu_gpr[gprn]);
}
void spr_write_atbl(DisasContext *ctx, int sprn, int gprn)
{
gen_helper_store_atbl(tcg_env, cpu_gpr[gprn]);
}
void spr_write_atbu(DisasContext *ctx, int sprn, int gprn)
{
gen_helper_store_atbu(tcg_env, cpu_gpr[gprn]);
}
#if defined(TARGET_PPC64)
void spr_read_purr(DisasContext *ctx, int gprn, int sprn)
{
translator_io_start(&ctx->base);
gen_helper_load_purr(cpu_gpr[gprn], tcg_env);
}
void spr_write_purr(DisasContext *ctx, int sprn, int gprn)
{
if (!gen_serialize_core_lpar(ctx)) {
return;
}
translator_io_start(&ctx->base);
gen_helper_store_purr(tcg_env, cpu_gpr[gprn]);
}
/* HDECR */
void spr_read_hdecr(DisasContext *ctx, int gprn, int sprn)
{
translator_io_start(&ctx->base);
gen_helper_load_hdecr(cpu_gpr[gprn], tcg_env);
}
void spr_write_hdecr(DisasContext *ctx, int sprn, int gprn)
{
if (!gen_serialize_core_lpar(ctx)) {
return;
}
translator_io_start(&ctx->base);
gen_helper_store_hdecr(tcg_env, cpu_gpr[gprn]);
}
void spr_read_vtb(DisasContext *ctx, int gprn, int sprn)
{
translator_io_start(&ctx->base);
gen_helper_load_vtb(cpu_gpr[gprn], tcg_env);
}
void spr_write_vtb(DisasContext *ctx, int sprn, int gprn)
{
if (!gen_serialize_core_lpar(ctx)) {
return;
}
translator_io_start(&ctx->base);
gen_helper_store_vtb(tcg_env, cpu_gpr[gprn]);
}
void spr_write_tbu40(DisasContext *ctx, int sprn, int gprn)
{
if (!gen_serialize_core_lpar(ctx)) {
return;
}
translator_io_start(&ctx->base);
gen_helper_store_tbu40(tcg_env, cpu_gpr[gprn]);
}
#endif
#endif
#if !defined(CONFIG_USER_ONLY)
/* IBAT0U...IBAT0U */
/* IBAT0L...IBAT7L */
void spr_read_ibat(DisasContext *ctx, int gprn, int sprn)
{
tcg_gen_ld_tl(cpu_gpr[gprn], tcg_env,
offsetof(CPUPPCState,
IBAT[sprn & 1][(sprn - SPR_IBAT0U) / 2]));
}
void spr_read_ibat_h(DisasContext *ctx, int gprn, int sprn)
{
tcg_gen_ld_tl(cpu_gpr[gprn], tcg_env,
offsetof(CPUPPCState,
IBAT[sprn & 1][((sprn - SPR_IBAT4U) / 2) + 4]));
}
void spr_write_ibatu(DisasContext *ctx, int sprn, int gprn)
{
TCGv_i32 t0 = tcg_constant_i32((sprn - SPR_IBAT0U) / 2);
gen_helper_store_ibatu(tcg_env, t0, cpu_gpr[gprn]);
}
void spr_write_ibatu_h(DisasContext *ctx, int sprn, int gprn)
{
TCGv_i32 t0 = tcg_constant_i32(((sprn - SPR_IBAT4U) / 2) + 4);
gen_helper_store_ibatu(tcg_env, t0, cpu_gpr[gprn]);
}
void spr_write_ibatl(DisasContext *ctx, int sprn, int gprn)
{
TCGv_i32 t0 = tcg_constant_i32((sprn - SPR_IBAT0L) / 2);
gen_helper_store_ibatl(tcg_env, t0, cpu_gpr[gprn]);
}
void spr_write_ibatl_h(DisasContext *ctx, int sprn, int gprn)
{
TCGv_i32 t0 = tcg_constant_i32(((sprn - SPR_IBAT4L) / 2) + 4);
gen_helper_store_ibatl(tcg_env, t0, cpu_gpr[gprn]);
}
/* DBAT0U...DBAT7U */
/* DBAT0L...DBAT7L */
void spr_read_dbat(DisasContext *ctx, int gprn, int sprn)
{
tcg_gen_ld_tl(cpu_gpr[gprn], tcg_env,
offsetof(CPUPPCState,
DBAT[sprn & 1][(sprn - SPR_DBAT0U) / 2]));
}
void spr_read_dbat_h(DisasContext *ctx, int gprn, int sprn)
{
tcg_gen_ld_tl(cpu_gpr[gprn], tcg_env,
offsetof(CPUPPCState,
DBAT[sprn & 1][((sprn - SPR_DBAT4U) / 2) + 4]));
}
void spr_write_dbatu(DisasContext *ctx, int sprn, int gprn)
{
TCGv_i32 t0 = tcg_constant_i32((sprn - SPR_DBAT0U) / 2);
gen_helper_store_dbatu(tcg_env, t0, cpu_gpr[gprn]);
}
void spr_write_dbatu_h(DisasContext *ctx, int sprn, int gprn)
{
TCGv_i32 t0 = tcg_constant_i32(((sprn - SPR_DBAT4U) / 2) + 4);
gen_helper_store_dbatu(tcg_env, t0, cpu_gpr[gprn]);
}
void spr_write_dbatl(DisasContext *ctx, int sprn, int gprn)
{
TCGv_i32 t0 = tcg_constant_i32((sprn - SPR_DBAT0L) / 2);
gen_helper_store_dbatl(tcg_env, t0, cpu_gpr[gprn]);
}
void spr_write_dbatl_h(DisasContext *ctx, int sprn, int gprn)
{
TCGv_i32 t0 = tcg_constant_i32(((sprn - SPR_DBAT4L) / 2) + 4);
gen_helper_store_dbatl(tcg_env, t0, cpu_gpr[gprn]);
}
/* SDR1 */
void spr_write_sdr1(DisasContext *ctx, int sprn, int gprn)
{
gen_helper_store_sdr1(tcg_env, cpu_gpr[gprn]);
}
#if defined(TARGET_PPC64)
/* 64 bits PowerPC specific SPRs */
/* PIDR */
void spr_write_pidr(DisasContext *ctx, int sprn, int gprn)
{
gen_helper_store_pidr(tcg_env, cpu_gpr[gprn]);
}
void spr_write_lpidr(DisasContext *ctx, int sprn, int gprn)
{
gen_helper_store_lpidr(tcg_env, cpu_gpr[gprn]);
}
void spr_read_hior(DisasContext *ctx, int gprn, int sprn)
{
tcg_gen_ld_tl(cpu_gpr[gprn], tcg_env, offsetof(CPUPPCState, excp_prefix));
}
void spr_write_hior(DisasContext *ctx, int sprn, int gprn)
{
TCGv t0 = tcg_temp_new();
tcg_gen_andi_tl(t0, cpu_gpr[gprn], 0x3FFFFF00000ULL);
tcg_gen_st_tl(t0, tcg_env, offsetof(CPUPPCState, excp_prefix));
}
void spr_write_ptcr(DisasContext *ctx, int sprn, int gprn)
{
if (!gen_serialize_core(ctx)) {
return;
}
gen_helper_store_ptcr(tcg_env, cpu_gpr[gprn]);
}
void spr_write_pcr(DisasContext *ctx, int sprn, int gprn)
{
gen_helper_store_pcr(tcg_env, cpu_gpr[gprn]);
}
/* DPDES */
void spr_read_dpdes(DisasContext *ctx, int gprn, int sprn)
{
if (!gen_serialize_core_lpar(ctx)) {
return;
}
gen_helper_load_dpdes(cpu_gpr[gprn], tcg_env);
}
void spr_write_dpdes(DisasContext *ctx, int sprn, int gprn)
{
if (!gen_serialize_core_lpar(ctx)) {
return;
}
gen_helper_store_dpdes(tcg_env, cpu_gpr[gprn]);
}
#endif
#endif
/* PowerPC 40x specific registers */
#if !defined(CONFIG_USER_ONLY)
void spr_read_40x_pit(DisasContext *ctx, int gprn, int sprn)
{
translator_io_start(&ctx->base);
gen_helper_load_40x_pit(cpu_gpr[gprn], tcg_env);
}
void spr_write_40x_pit(DisasContext *ctx, int sprn, int gprn)
{
translator_io_start(&ctx->base);
gen_helper_store_40x_pit(tcg_env, cpu_gpr[gprn]);
}
void spr_write_40x_dbcr0(DisasContext *ctx, int sprn, int gprn)
{
translator_io_start(&ctx->base);
gen_store_spr(sprn, cpu_gpr[gprn]);
gen_helper_store_40x_dbcr0(tcg_env, cpu_gpr[gprn]);
/* We must stop translation as we may have rebooted */
ctx->base.is_jmp = DISAS_EXIT_UPDATE;
}
void spr_write_40x_sler(DisasContext *ctx, int sprn, int gprn)
{
translator_io_start(&ctx->base);
gen_helper_store_40x_sler(tcg_env, cpu_gpr[gprn]);
}
void spr_write_40x_tcr(DisasContext *ctx, int sprn, int gprn)
{
translator_io_start(&ctx->base);
gen_helper_store_40x_tcr(tcg_env, cpu_gpr[gprn]);
}
void spr_write_40x_tsr(DisasContext *ctx, int sprn, int gprn)
{
translator_io_start(&ctx->base);
gen_helper_store_40x_tsr(tcg_env, cpu_gpr[gprn]);
}
void spr_write_40x_pid(DisasContext *ctx, int sprn, int gprn)
{
TCGv t0 = tcg_temp_new();
tcg_gen_andi_tl(t0, cpu_gpr[gprn], 0xFF);
gen_helper_store_40x_pid(tcg_env, t0);
}
void spr_write_booke_tcr(DisasContext *ctx, int sprn, int gprn)
{
translator_io_start(&ctx->base);
gen_helper_store_booke_tcr(tcg_env, cpu_gpr[gprn]);
}
void spr_write_booke_tsr(DisasContext *ctx, int sprn, int gprn)
{
translator_io_start(&ctx->base);
gen_helper_store_booke_tsr(tcg_env, cpu_gpr[gprn]);
}
#endif
/* PIR */
#if !defined(CONFIG_USER_ONLY)
void spr_write_pir(DisasContext *ctx, int sprn, int gprn)
{
TCGv t0 = tcg_temp_new();
tcg_gen_andi_tl(t0, cpu_gpr[gprn], 0xF);
gen_store_spr(SPR_PIR, t0);
}
#endif
/* SPE specific registers */
void spr_read_spefscr(DisasContext *ctx, int gprn, int sprn)
{
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_ld_i32(t0, tcg_env, offsetof(CPUPPCState, spe_fscr));
tcg_gen_extu_i32_tl(cpu_gpr[gprn], t0);
}
void spr_write_spefscr(DisasContext *ctx, int sprn, int gprn)
{
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(t0, cpu_gpr[gprn]);
tcg_gen_st_i32(t0, tcg_env, offsetof(CPUPPCState, spe_fscr));
}
#if !defined(CONFIG_USER_ONLY)
/* Callback used to write the exception vector base */
void spr_write_excp_prefix(DisasContext *ctx, int sprn, int gprn)
{
TCGv t0 = tcg_temp_new();
tcg_gen_ld_tl(t0, tcg_env, offsetof(CPUPPCState, ivpr_mask));
tcg_gen_and_tl(t0, t0, cpu_gpr[gprn]);
tcg_gen_st_tl(t0, tcg_env, offsetof(CPUPPCState, excp_prefix));
gen_store_spr(sprn, t0);
}
void spr_write_excp_vector(DisasContext *ctx, int sprn, int gprn)
{
int sprn_offs;
if (sprn >= SPR_BOOKE_IVOR0 && sprn <= SPR_BOOKE_IVOR15) {
sprn_offs = sprn - SPR_BOOKE_IVOR0;
} else if (sprn >= SPR_BOOKE_IVOR32 && sprn <= SPR_BOOKE_IVOR37) {
sprn_offs = sprn - SPR_BOOKE_IVOR32 + 32;
} else if (sprn >= SPR_BOOKE_IVOR38 && sprn <= SPR_BOOKE_IVOR42) {
sprn_offs = sprn - SPR_BOOKE_IVOR38 + 38;
} else {
qemu_log_mask(LOG_GUEST_ERROR, "Trying to write an unknown exception"
" vector 0x%03x\n", sprn);
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
return;
}
TCGv t0 = tcg_temp_new();
tcg_gen_ld_tl(t0, tcg_env, offsetof(CPUPPCState, ivor_mask));
tcg_gen_and_tl(t0, t0, cpu_gpr[gprn]);
tcg_gen_st_tl(t0, tcg_env, offsetof(CPUPPCState, excp_vectors[sprn_offs]));
gen_store_spr(sprn, t0);
}
#endif
#ifdef TARGET_PPC64
#ifndef CONFIG_USER_ONLY
void spr_write_amr(DisasContext *ctx, int sprn, int gprn)
{
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
TCGv t2 = tcg_temp_new();
/*
* Note, the HV=1 PR=0 case is handled earlier by simply using
* spr_write_generic for HV mode in the SPR table
*/
/* Build insertion mask into t1 based on context */
if (ctx->pr) {
gen_load_spr(t1, SPR_UAMOR);
} else {
gen_load_spr(t1, SPR_AMOR);
}
/* Mask new bits into t2 */
tcg_gen_and_tl(t2, t1, cpu_gpr[gprn]);
/* Load AMR and clear new bits in t0 */
gen_load_spr(t0, SPR_AMR);
tcg_gen_andc_tl(t0, t0, t1);
/* Or'in new bits and write it out */
tcg_gen_or_tl(t0, t0, t2);
gen_store_spr(SPR_AMR, t0);
spr_store_dump_spr(SPR_AMR);
}
void spr_write_uamor(DisasContext *ctx, int sprn, int gprn)
{
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
TCGv t2 = tcg_temp_new();
/*
* Note, the HV=1 case is handled earlier by simply using
* spr_write_generic for HV mode in the SPR table
*/
/* Build insertion mask into t1 based on context */
gen_load_spr(t1, SPR_AMOR);
/* Mask new bits into t2 */
tcg_gen_and_tl(t2, t1, cpu_gpr[gprn]);
/* Load AMR and clear new bits in t0 */
gen_load_spr(t0, SPR_UAMOR);
tcg_gen_andc_tl(t0, t0, t1);
/* Or'in new bits and write it out */
tcg_gen_or_tl(t0, t0, t2);
gen_store_spr(SPR_UAMOR, t0);
spr_store_dump_spr(SPR_UAMOR);
}
void spr_write_iamr(DisasContext *ctx, int sprn, int gprn)
{
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
TCGv t2 = tcg_temp_new();
/*
* Note, the HV=1 case is handled earlier by simply using
* spr_write_generic for HV mode in the SPR table
*/
/* Build insertion mask into t1 based on context */
gen_load_spr(t1, SPR_AMOR);
/* Mask new bits into t2 */
tcg_gen_and_tl(t2, t1, cpu_gpr[gprn]);
/* Load AMR and clear new bits in t0 */
gen_load_spr(t0, SPR_IAMR);
tcg_gen_andc_tl(t0, t0, t1);
/* Or'in new bits and write it out */
tcg_gen_or_tl(t0, t0, t2);
gen_store_spr(SPR_IAMR, t0);
spr_store_dump_spr(SPR_IAMR);
}
#endif
#endif
#ifndef CONFIG_USER_ONLY
void spr_read_thrm(DisasContext *ctx, int gprn, int sprn)
{
gen_helper_fixup_thrm(tcg_env);
gen_load_spr(cpu_gpr[gprn], sprn);
spr_load_dump_spr(sprn);
}
#endif /* !CONFIG_USER_ONLY */
#if !defined(CONFIG_USER_ONLY)
void spr_write_e500_l1csr0(DisasContext *ctx, int sprn, int gprn)
{
TCGv t0 = tcg_temp_new();
tcg_gen_andi_tl(t0, cpu_gpr[gprn], L1CSR0_DCE | L1CSR0_CPE);
gen_store_spr(sprn, t0);
}
void spr_write_e500_l1csr1(DisasContext *ctx, int sprn, int gprn)
{
TCGv t0 = tcg_temp_new();
tcg_gen_andi_tl(t0, cpu_gpr[gprn], L1CSR1_ICE | L1CSR1_CPE);
gen_store_spr(sprn, t0);
}
void spr_write_e500_l2csr0(DisasContext *ctx, int sprn, int gprn)
{
TCGv t0 = tcg_temp_new();
tcg_gen_andi_tl(t0, cpu_gpr[gprn],
~(E500_L2CSR0_L2FI | E500_L2CSR0_L2FL | E500_L2CSR0_L2LFC));
gen_store_spr(sprn, t0);
}
void spr_write_booke206_mmucsr0(DisasContext *ctx, int sprn, int gprn)
{
gen_helper_booke206_tlbflush(tcg_env, cpu_gpr[gprn]);
}
void spr_write_booke_pid(DisasContext *ctx, int sprn, int gprn)
{
TCGv_i32 t0 = tcg_constant_i32(sprn);
gen_helper_booke_setpid(tcg_env, t0, cpu_gpr[gprn]);
}
void spr_write_eplc(DisasContext *ctx, int sprn, int gprn)
{
gen_helper_booke_set_eplc(tcg_env, cpu_gpr[gprn]);
}
void spr_write_epsc(DisasContext *ctx, int sprn, int gprn)
{
gen_helper_booke_set_epsc(tcg_env, cpu_gpr[gprn]);
}
#endif
#if !defined(CONFIG_USER_ONLY)
void spr_write_mas73(DisasContext *ctx, int sprn, int gprn)
{
TCGv val = tcg_temp_new();
tcg_gen_ext32u_tl(val, cpu_gpr[gprn]);
gen_store_spr(SPR_BOOKE_MAS3, val);
tcg_gen_shri_tl(val, cpu_gpr[gprn], 32);
gen_store_spr(SPR_BOOKE_MAS7, val);
}
void spr_read_mas73(DisasContext *ctx, int gprn, int sprn)
{
TCGv mas7 = tcg_temp_new();
TCGv mas3 = tcg_temp_new();
gen_load_spr(mas7, SPR_BOOKE_MAS7);
tcg_gen_shli_tl(mas7, mas7, 32);
gen_load_spr(mas3, SPR_BOOKE_MAS3);
tcg_gen_or_tl(cpu_gpr[gprn], mas3, mas7);
}
#endif
#ifdef TARGET_PPC64
static void gen_fscr_facility_check(DisasContext *ctx, int facility_sprn,
int bit, int sprn, int cause)
{
TCGv_i32 t1 = tcg_constant_i32(bit);
TCGv_i32 t2 = tcg_constant_i32(sprn);
TCGv_i32 t3 = tcg_constant_i32(cause);
gen_helper_fscr_facility_check(tcg_env, t1, t2, t3);
}
static void gen_msr_facility_check(DisasContext *ctx, int facility_sprn,
int bit, int sprn, int cause)
{
TCGv_i32 t1 = tcg_constant_i32(bit);
TCGv_i32 t2 = tcg_constant_i32(sprn);
TCGv_i32 t3 = tcg_constant_i32(cause);
gen_helper_msr_facility_check(tcg_env, t1, t2, t3);
}
void spr_read_prev_upper32(DisasContext *ctx, int gprn, int sprn)
{
TCGv spr_up = tcg_temp_new();
TCGv spr = tcg_temp_new();
gen_load_spr(spr, sprn - 1);
tcg_gen_shri_tl(spr_up, spr, 32);
tcg_gen_ext32u_tl(cpu_gpr[gprn], spr_up);
}
void spr_write_prev_upper32(DisasContext *ctx, int sprn, int gprn)
{
TCGv spr = tcg_temp_new();
gen_load_spr(spr, sprn - 1);
tcg_gen_deposit_tl(spr, spr, cpu_gpr[gprn], 32, 32);
gen_store_spr(sprn - 1, spr);
}
#if !defined(CONFIG_USER_ONLY)
void spr_write_hmer(DisasContext *ctx, int sprn, int gprn)
{
TCGv hmer = tcg_temp_new();
gen_load_spr(hmer, sprn);
tcg_gen_and_tl(hmer, cpu_gpr[gprn], hmer);
gen_store_spr(sprn, hmer);
spr_store_dump_spr(sprn);
}
void spr_read_tfmr(DisasContext *ctx, int gprn, int sprn)
{
/* Reading TFMR can cause it to be updated, so serialize threads here too */
if (!gen_serialize_core(ctx)) {
return;
}
gen_helper_load_tfmr(cpu_gpr[gprn], tcg_env);
}
void spr_write_tfmr(DisasContext *ctx, int sprn, int gprn)
{
if (!gen_serialize_core(ctx)) {
return;
}
gen_helper_store_tfmr(tcg_env, cpu_gpr[gprn]);
}
void spr_write_sprc(DisasContext *ctx, int sprn, int gprn)
{
gen_helper_store_sprc(tcg_env, cpu_gpr[gprn]);
}
void spr_read_sprd(DisasContext *ctx, int gprn, int sprn)
{
gen_helper_load_sprd(cpu_gpr[gprn], tcg_env);
}
void spr_write_sprd(DisasContext *ctx, int sprn, int gprn)
{
if (!gen_serialize_core(ctx)) {
return;
}
gen_helper_store_sprd(tcg_env, cpu_gpr[gprn]);
}
void spr_write_lpcr(DisasContext *ctx, int sprn, int gprn)
{
translator_io_start(&ctx->base);
gen_helper_store_lpcr(tcg_env, cpu_gpr[gprn]);
}
#endif /* !defined(CONFIG_USER_ONLY) */
void spr_read_tar(DisasContext *ctx, int gprn, int sprn)
{
gen_fscr_facility_check(ctx, SPR_FSCR, FSCR_TAR, sprn, FSCR_IC_TAR);
spr_read_generic(ctx, gprn, sprn);
}
void spr_write_tar(DisasContext *ctx, int sprn, int gprn)
{
gen_fscr_facility_check(ctx, SPR_FSCR, FSCR_TAR, sprn, FSCR_IC_TAR);
spr_write_generic(ctx, sprn, gprn);
}
void spr_read_tm(DisasContext *ctx, int gprn, int sprn)
{
gen_msr_facility_check(ctx, SPR_FSCR, MSR_TM, sprn, FSCR_IC_TM);
spr_read_generic(ctx, gprn, sprn);
}
void spr_write_tm(DisasContext *ctx, int sprn, int gprn)
{
gen_msr_facility_check(ctx, SPR_FSCR, MSR_TM, sprn, FSCR_IC_TM);
spr_write_generic(ctx, sprn, gprn);
}
void spr_read_tm_upper32(DisasContext *ctx, int gprn, int sprn)
{
gen_msr_facility_check(ctx, SPR_FSCR, MSR_TM, sprn, FSCR_IC_TM);
spr_read_prev_upper32(ctx, gprn, sprn);
}
void spr_write_tm_upper32(DisasContext *ctx, int sprn, int gprn)
{
gen_msr_facility_check(ctx, SPR_FSCR, MSR_TM, sprn, FSCR_IC_TM);
spr_write_prev_upper32(ctx, sprn, gprn);
}
void spr_read_ebb(DisasContext *ctx, int gprn, int sprn)
{
gen_fscr_facility_check(ctx, SPR_FSCR, FSCR_EBB, sprn, FSCR_IC_EBB);
spr_read_generic(ctx, gprn, sprn);
}
void spr_write_ebb(DisasContext *ctx, int sprn, int gprn)
{
gen_fscr_facility_check(ctx, SPR_FSCR, FSCR_EBB, sprn, FSCR_IC_EBB);
spr_write_generic(ctx, sprn, gprn);
}
void spr_read_ebb_upper32(DisasContext *ctx, int gprn, int sprn)
{
gen_fscr_facility_check(ctx, SPR_FSCR, FSCR_EBB, sprn, FSCR_IC_EBB);
spr_read_prev_upper32(ctx, gprn, sprn);
}
void spr_write_ebb_upper32(DisasContext *ctx, int sprn, int gprn)
{
gen_fscr_facility_check(ctx, SPR_FSCR, FSCR_EBB, sprn, FSCR_IC_EBB);
spr_write_prev_upper32(ctx, sprn, gprn);
}
void spr_read_dexcr_ureg(DisasContext *ctx, int gprn, int sprn)
{
TCGv t0 = tcg_temp_new();
/*
* Access to the (H)DEXCR in problem state is done using separated
* SPR indexes which are 16 below the SPR indexes which have full
* access to the (H)DEXCR in privileged state. Problem state can
* only read bits 32:63, bits 0:31 return 0.
*
* See section 9.3.1-9.3.2 of PowerISA v3.1B
*/
gen_load_spr(t0, sprn + 16);
tcg_gen_ext32u_tl(cpu_gpr[gprn], t0);
}
/* The PPR32 SPR accesses the upper 32-bits of PPR */
void spr_read_ppr32(DisasContext *ctx, int gprn, int sprn)
{
gen_load_spr(cpu_gpr[gprn], SPR_PPR);
tcg_gen_shri_tl(cpu_gpr[gprn], cpu_gpr[gprn], 32);
spr_load_dump_spr(SPR_PPR);
}
void spr_write_ppr32(DisasContext *ctx, int sprn, int gprn)
{
TCGv t0 = tcg_temp_new();
/*
* Don't clobber the low 32-bits of the PPR. These are all reserved bits
* but TCG does implement them, so it would be surprising to zero them
* here. "Priority nops" are similarly careful not to clobber reserved
* bits.
*/
gen_load_spr(t0, SPR_PPR);
tcg_gen_deposit_tl(t0, t0, cpu_gpr[gprn], 32, 32);
gen_store_spr(SPR_PPR, t0);
spr_store_dump_spr(SPR_PPR);
}
#endif
#define GEN_HANDLER(name, opc1, opc2, opc3, inval, type) \
GEN_OPCODE(name, opc1, opc2, opc3, inval, type, PPC_NONE)
#define GEN_HANDLER_E(name, opc1, opc2, opc3, inval, type, type2) \
GEN_OPCODE(name, opc1, opc2, opc3, inval, type, type2)
#define GEN_HANDLER2(name, onam, opc1, opc2, opc3, inval, type) \
GEN_OPCODE2(name, onam, opc1, opc2, opc3, inval, type, PPC_NONE)
#define GEN_HANDLER2_E(name, onam, opc1, opc2, opc3, inval, type, type2) \
GEN_OPCODE2(name, onam, opc1, opc2, opc3, inval, type, type2)
#define GEN_HANDLER_E_2(name, opc1, opc2, opc3, opc4, inval, type, type2) \
GEN_OPCODE3(name, opc1, opc2, opc3, opc4, inval, type, type2)
#define GEN_HANDLER2_E_2(name, onam, opc1, opc2, opc3, opc4, inval, typ, typ2) \
GEN_OPCODE4(name, onam, opc1, opc2, opc3, opc4, inval, typ, typ2)
typedef struct opcode_t {
unsigned char opc1, opc2, opc3, opc4;
#if HOST_LONG_BITS == 64 /* Explicitly align to 64 bits */
unsigned char pad[4];
#endif
opc_handler_t handler;
const char *oname;
} opcode_t;
static void gen_priv_opc(DisasContext *ctx)
{
gen_priv_exception(ctx, POWERPC_EXCP_PRIV_OPC);
}
/* Helpers for priv. check */
#define GEN_PRIV(CTX) \
do { \
gen_priv_opc(CTX); return; \
} while (0)
#if defined(CONFIG_USER_ONLY)
#define CHK_HV(CTX) GEN_PRIV(CTX)
#define CHK_SV(CTX) GEN_PRIV(CTX)
#define CHK_HVRM(CTX) GEN_PRIV(CTX)
#else
#define CHK_HV(CTX) \
do { \
if (unlikely(ctx->pr || !ctx->hv)) {\
GEN_PRIV(CTX); \
} \
} while (0)
#define CHK_SV(CTX) \
do { \
if (unlikely(ctx->pr)) { \
GEN_PRIV(CTX); \
} \
} while (0)
#define CHK_HVRM(CTX) \
do { \
if (unlikely(ctx->pr || !ctx->hv || ctx->dr)) { \
GEN_PRIV(CTX); \
} \
} while (0)
#endif
#define CHK_NONE(CTX)
/*****************************************************************************/
/* PowerPC instructions table */
#define GEN_OPCODE(name, op1, op2, op3, invl, _typ, _typ2) \
{ \
.opc1 = op1, \
.opc2 = op2, \
.opc3 = op3, \
.opc4 = 0xff, \
.handler = { \
.inval1 = invl, \
.type = _typ, \
.type2 = _typ2, \
.handler = &gen_##name, \
}, \
.oname = stringify(name), \
}
#define GEN_OPCODE_DUAL(name, op1, op2, op3, invl1, invl2, _typ, _typ2) \
{ \
.opc1 = op1, \
.opc2 = op2, \
.opc3 = op3, \
.opc4 = 0xff, \
.handler = { \
.inval1 = invl1, \
.inval2 = invl2, \
.type = _typ, \
.type2 = _typ2, \
.handler = &gen_##name, \
}, \
.oname = stringify(name), \
}
#define GEN_OPCODE2(name, onam, op1, op2, op3, invl, _typ, _typ2) \
{ \
.opc1 = op1, \
.opc2 = op2, \
.opc3 = op3, \
.opc4 = 0xff, \
.handler = { \
.inval1 = invl, \
.type = _typ, \
.type2 = _typ2, \
.handler = &gen_##name, \
}, \
.oname = onam, \
}
#define GEN_OPCODE3(name, op1, op2, op3, op4, invl, _typ, _typ2) \
{ \
.opc1 = op1, \
.opc2 = op2, \
.opc3 = op3, \
.opc4 = op4, \
.handler = { \
.inval1 = invl, \
.type = _typ, \
.type2 = _typ2, \
.handler = &gen_##name, \
}, \
.oname = stringify(name), \
}
#define GEN_OPCODE4(name, onam, op1, op2, op3, op4, invl, _typ, _typ2) \
{ \
.opc1 = op1, \
.opc2 = op2, \
.opc3 = op3, \
.opc4 = op4, \
.handler = { \
.inval1 = invl, \
.type = _typ, \
.type2 = _typ2, \
.handler = &gen_##name, \
}, \
.oname = onam, \
}
/* Invalid instruction */
static void gen_invalid(DisasContext *ctx)
{
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
}
static opc_handler_t invalid_handler = {
.inval1 = 0xFFFFFFFF,
.inval2 = 0xFFFFFFFF,
.type = PPC_NONE,
.type2 = PPC_NONE,
.handler = gen_invalid,
};
/*** Integer comparison ***/
static inline void gen_op_cmp(TCGv arg0, TCGv arg1, int s, int crf)
{
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
TCGv_i32 t = tcg_temp_new_i32();
tcg_gen_movi_tl(t0, CRF_EQ);
tcg_gen_movi_tl(t1, CRF_LT);
tcg_gen_movcond_tl((s ? TCG_COND_LT : TCG_COND_LTU),
t0, arg0, arg1, t1, t0);
tcg_gen_movi_tl(t1, CRF_GT);
tcg_gen_movcond_tl((s ? TCG_COND_GT : TCG_COND_GTU),
t0, arg0, arg1, t1, t0);
tcg_gen_trunc_tl_i32(t, t0);
tcg_gen_trunc_tl_i32(cpu_crf[crf], cpu_so);
tcg_gen_or_i32(cpu_crf[crf], cpu_crf[crf], t);
}
static inline void gen_op_cmpi(TCGv arg0, target_ulong arg1, int s, int crf)
{
TCGv t0 = tcg_constant_tl(arg1);
gen_op_cmp(arg0, t0, s, crf);
}
static inline void gen_op_cmp32(TCGv arg0, TCGv arg1, int s, int crf)
{
TCGv t0, t1;
t0 = tcg_temp_new();
t1 = tcg_temp_new();
if (s) {
tcg_gen_ext32s_tl(t0, arg0);
tcg_gen_ext32s_tl(t1, arg1);
} else {
tcg_gen_ext32u_tl(t0, arg0);
tcg_gen_ext32u_tl(t1, arg1);
}
gen_op_cmp(t0, t1, s, crf);
}
static inline void gen_op_cmpi32(TCGv arg0, target_ulong arg1, int s, int crf)
{
TCGv t0 = tcg_constant_tl(arg1);
gen_op_cmp32(arg0, t0, s, crf);
}
static inline void gen_set_Rc0(DisasContext *ctx, TCGv reg)
{
if (NARROW_MODE(ctx)) {
gen_op_cmpi32(reg, 0, 1, 0);
} else {
gen_op_cmpi(reg, 0, 1, 0);
}
}
/*** Integer arithmetic ***/
static inline void gen_op_arith_compute_ov(DisasContext *ctx, TCGv arg0,
TCGv arg1, TCGv arg2, int sub)
{
TCGv t0 = tcg_temp_new();
tcg_gen_xor_tl(cpu_ov, arg0, arg2);
tcg_gen_xor_tl(t0, arg1, arg2);
if (sub) {
tcg_gen_and_tl(cpu_ov, cpu_ov, t0);
} else {
tcg_gen_andc_tl(cpu_ov, cpu_ov, t0);
}
if (NARROW_MODE(ctx)) {
tcg_gen_extract_tl(cpu_ov, cpu_ov, 31, 1);
if (is_isa300(ctx)) {
tcg_gen_mov_tl(cpu_ov32, cpu_ov);
}
} else {
if (is_isa300(ctx)) {
tcg_gen_extract_tl(cpu_ov32, cpu_ov, 31, 1);
}
tcg_gen_extract_tl(cpu_ov, cpu_ov, TARGET_LONG_BITS - 1, 1);
}
tcg_gen_or_tl(cpu_so, cpu_so, cpu_ov);
}
static inline void gen_op_arith_compute_ca32(DisasContext *ctx,
TCGv res, TCGv arg0, TCGv arg1,
TCGv ca32, int sub)
{
TCGv t0;
if (!is_isa300(ctx)) {
return;
}
t0 = tcg_temp_new();
if (sub) {
tcg_gen_eqv_tl(t0, arg0, arg1);
} else {
tcg_gen_xor_tl(t0, arg0, arg1);
}
tcg_gen_xor_tl(t0, t0, res);
tcg_gen_extract_tl(ca32, t0, 32, 1);
}
/* Common add function */
static inline void gen_op_arith_add(DisasContext *ctx, TCGv ret, TCGv arg1,
TCGv arg2, TCGv ca, TCGv ca32,
bool add_ca, bool compute_ca,
bool compute_ov, bool compute_rc0)
{
TCGv t0 = ret;
if (compute_ca || compute_ov) {
t0 = tcg_temp_new();
}
if (compute_ca) {
if (NARROW_MODE(ctx)) {
/*
* Caution: a non-obvious corner case of the spec is that
* we must produce the *entire* 64-bit addition, but
* produce the carry into bit 32.
*/
TCGv t1 = tcg_temp_new();
tcg_gen_xor_tl(t1, arg1, arg2); /* add without carry */
tcg_gen_add_tl(t0, arg1, arg2);
if (add_ca) {
tcg_gen_add_tl(t0, t0, ca);
}
tcg_gen_xor_tl(ca, t0, t1); /* bits changed w/ carry */
tcg_gen_extract_tl(ca, ca, 32, 1);
if (is_isa300(ctx)) {
tcg_gen_mov_tl(ca32, ca);
}
} else {
TCGv zero = tcg_constant_tl(0);
if (add_ca) {
tcg_gen_add2_tl(t0, ca, arg1, zero, ca, zero);
tcg_gen_add2_tl(t0, ca, t0, ca, arg2, zero);
} else {
tcg_gen_add2_tl(t0, ca, arg1, zero, arg2, zero);
}
gen_op_arith_compute_ca32(ctx, t0, arg1, arg2, ca32, 0);
}
} else {
tcg_gen_add_tl(t0, arg1, arg2);
if (add_ca) {
tcg_gen_add_tl(t0, t0, ca);
}
}
if (compute_ov) {
gen_op_arith_compute_ov(ctx, t0, arg1, arg2, 0);
}
if (unlikely(compute_rc0)) {
gen_set_Rc0(ctx, t0);
}
if (t0 != ret) {
tcg_gen_mov_tl(ret, t0);
}
}
static inline void gen_op_arith_divw(DisasContext *ctx, TCGv ret,
TCGv arg1, TCGv arg2, bool sign,
bool compute_ov, bool compute_rc0)
{
TCGv_i32 t0 = tcg_temp_new_i32();
TCGv_i32 t1 = tcg_temp_new_i32();
TCGv_i32 t2 = tcg_temp_new_i32();
TCGv_i32 t3 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(t0, arg1);
tcg_gen_trunc_tl_i32(t1, arg2);
if (sign) {
tcg_gen_setcondi_i32(TCG_COND_EQ, t2, t0, INT_MIN);
tcg_gen_setcondi_i32(TCG_COND_EQ, t3, t1, -1);
tcg_gen_and_i32(t2, t2, t3);
tcg_gen_setcondi_i32(TCG_COND_EQ, t3, t1, 0);
tcg_gen_or_i32(t2, t2, t3);
tcg_gen_movi_i32(t3, 0);
tcg_gen_movcond_i32(TCG_COND_NE, t1, t2, t3, t2, t1);
tcg_gen_div_i32(t3, t0, t1);
tcg_gen_extu_i32_tl(ret, t3);
} else {
tcg_gen_setcondi_i32(TCG_COND_EQ, t2, t1, 0);
tcg_gen_movi_i32(t3, 0);
tcg_gen_movcond_i32(TCG_COND_NE, t1, t2, t3, t2, t1);
tcg_gen_divu_i32(t3, t0, t1);
tcg_gen_extu_i32_tl(ret, t3);
}
if (compute_ov) {
tcg_gen_extu_i32_tl(cpu_ov, t2);
if (is_isa300(ctx)) {
tcg_gen_extu_i32_tl(cpu_ov32, t2);
}
tcg_gen_or_tl(cpu_so, cpu_so, cpu_ov);
}
if (unlikely(compute_rc0)) {
gen_set_Rc0(ctx, ret);
}
}
#if defined(TARGET_PPC64)
static inline void gen_op_arith_divd(DisasContext *ctx, TCGv ret,
TCGv arg1, TCGv arg2, bool sign,
bool compute_ov, bool compute_rc0)
{
TCGv_i64 t0 = tcg_temp_new_i64();
TCGv_i64 t1 = tcg_temp_new_i64();
TCGv_i64 t2 = tcg_temp_new_i64();
TCGv_i64 t3 = tcg_temp_new_i64();
tcg_gen_mov_i64(t0, arg1);
tcg_gen_mov_i64(t1, arg2);
if (sign) {
tcg_gen_setcondi_i64(TCG_COND_EQ, t2, t0, INT64_MIN);
tcg_gen_setcondi_i64(TCG_COND_EQ, t3, t1, -1);
tcg_gen_and_i64(t2, t2, t3);
tcg_gen_setcondi_i64(TCG_COND_EQ, t3, t1, 0);
tcg_gen_or_i64(t2, t2, t3);
tcg_gen_movi_i64(t3, 0);
tcg_gen_movcond_i64(TCG_COND_NE, t1, t2, t3, t2, t1);
tcg_gen_div_i64(ret, t0, t1);
} else {
tcg_gen_setcondi_i64(TCG_COND_EQ, t2, t1, 0);
tcg_gen_movi_i64(t3, 0);
tcg_gen_movcond_i64(TCG_COND_NE, t1, t2, t3, t2, t1);
tcg_gen_divu_i64(ret, t0, t1);
}
if (compute_ov) {
tcg_gen_mov_tl(cpu_ov, t2);
if (is_isa300(ctx)) {
tcg_gen_mov_tl(cpu_ov32, t2);
}
tcg_gen_or_tl(cpu_so, cpu_so, cpu_ov);
}
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, ret);
}
}
#endif
static inline void gen_op_arith_modw(DisasContext *ctx, TCGv ret, TCGv arg1,
TCGv arg2, int sign)
{
TCGv_i32 t0 = tcg_temp_new_i32();
TCGv_i32 t1 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(t0, arg1);
tcg_gen_trunc_tl_i32(t1, arg2);
if (sign) {
TCGv_i32 t2 = tcg_temp_new_i32();
TCGv_i32 t3 = tcg_temp_new_i32();
tcg_gen_setcondi_i32(TCG_COND_EQ, t2, t0, INT_MIN);
tcg_gen_setcondi_i32(TCG_COND_EQ, t3, t1, -1);
tcg_gen_and_i32(t2, t2, t3);
tcg_gen_setcondi_i32(TCG_COND_EQ, t3, t1, 0);
tcg_gen_or_i32(t2, t2, t3);
tcg_gen_movi_i32(t3, 0);
tcg_gen_movcond_i32(TCG_COND_NE, t1, t2, t3, t2, t1);
tcg_gen_rem_i32(t3, t0, t1);
tcg_gen_ext_i32_tl(ret, t3);
} else {
TCGv_i32 t2 = tcg_constant_i32(1);
TCGv_i32 t3 = tcg_constant_i32(0);
tcg_gen_movcond_i32(TCG_COND_EQ, t1, t1, t3, t2, t1);
tcg_gen_remu_i32(t0, t0, t1);
tcg_gen_extu_i32_tl(ret, t0);
}
}
#if defined(TARGET_PPC64)
static inline void gen_op_arith_modd(DisasContext *ctx, TCGv ret, TCGv arg1,
TCGv arg2, int sign)
{
TCGv_i64 t0 = tcg_temp_new_i64();
TCGv_i64 t1 = tcg_temp_new_i64();
tcg_gen_mov_i64(t0, arg1);
tcg_gen_mov_i64(t1, arg2);
if (sign) {
TCGv_i64 t2 = tcg_temp_new_i64();
TCGv_i64 t3 = tcg_temp_new_i64();
tcg_gen_setcondi_i64(TCG_COND_EQ, t2, t0, INT64_MIN);
tcg_gen_setcondi_i64(TCG_COND_EQ, t3, t1, -1);
tcg_gen_and_i64(t2, t2, t3);
tcg_gen_setcondi_i64(TCG_COND_EQ, t3, t1, 0);
tcg_gen_or_i64(t2, t2, t3);
tcg_gen_movi_i64(t3, 0);
tcg_gen_movcond_i64(TCG_COND_NE, t1, t2, t3, t2, t1);
tcg_gen_rem_i64(ret, t0, t1);
} else {
TCGv_i64 t2 = tcg_constant_i64(1);
TCGv_i64 t3 = tcg_constant_i64(0);
tcg_gen_movcond_i64(TCG_COND_EQ, t1, t1, t3, t2, t1);
tcg_gen_remu_i64(ret, t0, t1);
}
}
#endif
/* Common subf function */
static inline void gen_op_arith_subf(DisasContext *ctx, TCGv ret, TCGv arg1,
TCGv arg2, bool add_ca, bool compute_ca,
bool compute_ov, bool compute_rc0)
{
TCGv t0 = ret;
if (compute_ca || compute_ov) {
t0 = tcg_temp_new();
}
if (compute_ca) {
/* dest = ~arg1 + arg2 [+ ca]. */
if (NARROW_MODE(ctx)) {
/*
* Caution: a non-obvious corner case of the spec is that
* we must produce the *entire* 64-bit addition, but
* produce the carry into bit 32.
*/
TCGv inv1 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
tcg_gen_not_tl(inv1, arg1);
if (add_ca) {
tcg_gen_add_tl(t0, arg2, cpu_ca);
} else {
tcg_gen_addi_tl(t0, arg2, 1);
}
tcg_gen_xor_tl(t1, arg2, inv1); /* add without carry */
tcg_gen_add_tl(t0, t0, inv1);
tcg_gen_xor_tl(cpu_ca, t0, t1); /* bits changes w/ carry */
tcg_gen_extract_tl(cpu_ca, cpu_ca, 32, 1);
if (is_isa300(ctx)) {
tcg_gen_mov_tl(cpu_ca32, cpu_ca);
}
} else if (add_ca) {
TCGv zero, inv1 = tcg_temp_new();
tcg_gen_not_tl(inv1, arg1);
zero = tcg_constant_tl(0);
tcg_gen_add2_tl(t0, cpu_ca, arg2, zero, cpu_ca, zero);
tcg_gen_add2_tl(t0, cpu_ca, t0, cpu_ca, inv1, zero);
gen_op_arith_compute_ca32(ctx, t0, inv1, arg2, cpu_ca32, 0);
} else {
tcg_gen_setcond_tl(TCG_COND_GEU, cpu_ca, arg2, arg1);
tcg_gen_sub_tl(t0, arg2, arg1);
gen_op_arith_compute_ca32(ctx, t0, arg1, arg2, cpu_ca32, 1);
}
} else if (add_ca) {
/*
* Since we're ignoring carry-out, we can simplify the
* standard ~arg1 + arg2 + ca to arg2 - arg1 + ca - 1.
*/
tcg_gen_sub_tl(t0, arg2, arg1);
tcg_gen_add_tl(t0, t0, cpu_ca);
tcg_gen_subi_tl(t0, t0, 1);
} else {
tcg_gen_sub_tl(t0, arg2, arg1);
}
if (compute_ov) {
gen_op_arith_compute_ov(ctx, t0, arg1, arg2, 1);
}
if (unlikely(compute_rc0)) {
gen_set_Rc0(ctx, t0);
}
if (t0 != ret) {
tcg_gen_mov_tl(ret, t0);
}
}
/*** Integer logical ***/
#if defined(TARGET_PPC64) && !defined(CONFIG_USER_ONLY)
static void gen_pause(DisasContext *ctx)
{
TCGv_i32 t0 = tcg_constant_i32(0);
tcg_gen_st_i32(t0, tcg_env,
-offsetof(PowerPCCPU, env) + offsetof(CPUState, halted));
/* Stop translation, this gives other CPUs a chance to run */
gen_exception_nip(ctx, EXCP_HLT, ctx->base.pc_next);
}
#endif /* defined(TARGET_PPC64) */
/*** Integer rotate ***/
/* rlwimi & rlwimi. */
static void gen_rlwimi(DisasContext *ctx)
{
TCGv t_ra = cpu_gpr[rA(ctx->opcode)];
TCGv t_rs = cpu_gpr[rS(ctx->opcode)];
uint32_t sh = SH(ctx->opcode);
uint32_t mb = MB(ctx->opcode);
uint32_t me = ME(ctx->opcode);
if (sh == (31 - me) && mb <= me) {
tcg_gen_deposit_tl(t_ra, t_ra, t_rs, sh, me - mb + 1);
} else {
target_ulong mask;
bool mask_in_32b = true;
TCGv t1;
#if defined(TARGET_PPC64)
mb += 32;
me += 32;
#endif
mask = MASK(mb, me);
#if defined(TARGET_PPC64)
if (mask > 0xffffffffu) {
mask_in_32b = false;
}
#endif
t1 = tcg_temp_new();
if (mask_in_32b) {
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(t0, t_rs);
tcg_gen_rotli_i32(t0, t0, sh);
tcg_gen_extu_i32_tl(t1, t0);
} else {
#if defined(TARGET_PPC64)
tcg_gen_deposit_i64(t1, t_rs, t_rs, 32, 32);
tcg_gen_rotli_i64(t1, t1, sh);
#else
g_assert_not_reached();
#endif
}
tcg_gen_andi_tl(t1, t1, mask);
tcg_gen_andi_tl(t_ra, t_ra, ~mask);
tcg_gen_or_tl(t_ra, t_ra, t1);
}
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, t_ra);
}
}
/* rlwinm & rlwinm. */
static void gen_rlwinm(DisasContext *ctx)
{
TCGv t_ra = cpu_gpr[rA(ctx->opcode)];
TCGv t_rs = cpu_gpr[rS(ctx->opcode)];
int sh = SH(ctx->opcode);
int mb = MB(ctx->opcode);
int me = ME(ctx->opcode);
int len = me - mb + 1;
int rsh = (32 - sh) & 31;
if (sh != 0 && len > 0 && me == (31 - sh)) {
tcg_gen_deposit_z_tl(t_ra, t_rs, sh, len);
} else if (me == 31 && rsh + len <= 32) {
tcg_gen_extract_tl(t_ra, t_rs, rsh, len);
} else {
target_ulong mask;
bool mask_in_32b = true;
#if defined(TARGET_PPC64)
mb += 32;
me += 32;
#endif
mask = MASK(mb, me);
#if defined(TARGET_PPC64)
if (mask > 0xffffffffu) {
mask_in_32b = false;
}
#endif
if (mask_in_32b) {
if (sh == 0) {
tcg_gen_andi_tl(t_ra, t_rs, mask);
} else {
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(t0, t_rs);
tcg_gen_rotli_i32(t0, t0, sh);
tcg_gen_andi_i32(t0, t0, mask);
tcg_gen_extu_i32_tl(t_ra, t0);
}
} else {
#if defined(TARGET_PPC64)
tcg_gen_deposit_i64(t_ra, t_rs, t_rs, 32, 32);
tcg_gen_rotli_i64(t_ra, t_ra, sh);
tcg_gen_andi_i64(t_ra, t_ra, mask);
#else
g_assert_not_reached();
#endif
}
}
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, t_ra);
}
}
/* rlwnm & rlwnm. */
static void gen_rlwnm(DisasContext *ctx)
{
TCGv t_ra = cpu_gpr[rA(ctx->opcode)];
TCGv t_rs = cpu_gpr[rS(ctx->opcode)];
TCGv t_rb = cpu_gpr[rB(ctx->opcode)];
uint32_t mb = MB(ctx->opcode);
uint32_t me = ME(ctx->opcode);
target_ulong mask;
bool mask_in_32b = true;
#if defined(TARGET_PPC64)
mb += 32;
me += 32;
#endif
mask = MASK(mb, me);
#if defined(TARGET_PPC64)
if (mask > 0xffffffffu) {
mask_in_32b = false;
}
#endif
if (mask_in_32b) {
TCGv_i32 t0 = tcg_temp_new_i32();
TCGv_i32 t1 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(t0, t_rb);
tcg_gen_trunc_tl_i32(t1, t_rs);
tcg_gen_andi_i32(t0, t0, 0x1f);
tcg_gen_rotl_i32(t1, t1, t0);
tcg_gen_extu_i32_tl(t_ra, t1);
} else {
#if defined(TARGET_PPC64)
TCGv_i64 t0 = tcg_temp_new_i64();
tcg_gen_andi_i64(t0, t_rb, 0x1f);
tcg_gen_deposit_i64(t_ra, t_rs, t_rs, 32, 32);
tcg_gen_rotl_i64(t_ra, t_ra, t0);
#else
g_assert_not_reached();
#endif
}
tcg_gen_andi_tl(t_ra, t_ra, mask);
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, t_ra);
}
}
#if defined(TARGET_PPC64)
#define GEN_PPC64_R2(name, opc1, opc2) \
static void glue(gen_, name##0)(DisasContext *ctx) \
{ \
gen_##name(ctx, 0); \
} \
\
static void glue(gen_, name##1)(DisasContext *ctx) \
{ \
gen_##name(ctx, 1); \
}
#define GEN_PPC64_R4(name, opc1, opc2) \
static void glue(gen_, name##0)(DisasContext *ctx) \
{ \
gen_##name(ctx, 0, 0); \
} \
\
static void glue(gen_, name##1)(DisasContext *ctx) \
{ \
gen_##name(ctx, 0, 1); \
} \
\
static void glue(gen_, name##2)(DisasContext *ctx) \
{ \
gen_##name(ctx, 1, 0); \
} \
\
static void glue(gen_, name##3)(DisasContext *ctx) \
{ \
gen_##name(ctx, 1, 1); \
}
static void gen_rldinm(DisasContext *ctx, int mb, int me, int sh)
{
TCGv t_ra = cpu_gpr[rA(ctx->opcode)];
TCGv t_rs = cpu_gpr[rS(ctx->opcode)];
int len = me - mb + 1;
int rsh = (64 - sh) & 63;
if (sh != 0 && len > 0 && me == (63 - sh)) {
tcg_gen_deposit_z_tl(t_ra, t_rs, sh, len);
} else if (me == 63 && rsh + len <= 64) {
tcg_gen_extract_tl(t_ra, t_rs, rsh, len);
} else {
tcg_gen_rotli_tl(t_ra, t_rs, sh);
tcg_gen_andi_tl(t_ra, t_ra, MASK(mb, me));
}
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, t_ra);
}
}
/* rldicl - rldicl. */
static inline void gen_rldicl(DisasContext *ctx, int mbn, int shn)
{
uint32_t sh, mb;
sh = SH(ctx->opcode) | (shn << 5);
mb = MB(ctx->opcode) | (mbn << 5);
gen_rldinm(ctx, mb, 63, sh);
}
GEN_PPC64_R4(rldicl, 0x1E, 0x00);
/* rldicr - rldicr. */
static inline void gen_rldicr(DisasContext *ctx, int men, int shn)
{
uint32_t sh, me;
sh = SH(ctx->opcode) | (shn << 5);
me = MB(ctx->opcode) | (men << 5);
gen_rldinm(ctx, 0, me, sh);
}
GEN_PPC64_R4(rldicr, 0x1E, 0x02);
/* rldic - rldic. */
static inline void gen_rldic(DisasContext *ctx, int mbn, int shn)
{
uint32_t sh, mb;
sh = SH(ctx->opcode) | (shn << 5);
mb = MB(ctx->opcode) | (mbn << 5);
gen_rldinm(ctx, mb, 63 - sh, sh);
}
GEN_PPC64_R4(rldic, 0x1E, 0x04);
static void gen_rldnm(DisasContext *ctx, int mb, int me)
{
TCGv t_ra = cpu_gpr[rA(ctx->opcode)];
TCGv t_rs = cpu_gpr[rS(ctx->opcode)];
TCGv t_rb = cpu_gpr[rB(ctx->opcode)];
TCGv t0;
t0 = tcg_temp_new();
tcg_gen_andi_tl(t0, t_rb, 0x3f);
tcg_gen_rotl_tl(t_ra, t_rs, t0);
tcg_gen_andi_tl(t_ra, t_ra, MASK(mb, me));
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, t_ra);
}
}
/* rldcl - rldcl. */
static inline void gen_rldcl(DisasContext *ctx, int mbn)
{
uint32_t mb;
mb = MB(ctx->opcode) | (mbn << 5);
gen_rldnm(ctx, mb, 63);
}
GEN_PPC64_R2(rldcl, 0x1E, 0x08);
/* rldcr - rldcr. */
static inline void gen_rldcr(DisasContext *ctx, int men)
{
uint32_t me;
me = MB(ctx->opcode) | (men << 5);
gen_rldnm(ctx, 0, me);
}
GEN_PPC64_R2(rldcr, 0x1E, 0x09);
/* rldimi - rldimi. */
static void gen_rldimi(DisasContext *ctx, int mbn, int shn)
{
TCGv t_ra = cpu_gpr[rA(ctx->opcode)];
TCGv t_rs = cpu_gpr[rS(ctx->opcode)];
uint32_t sh = SH(ctx->opcode) | (shn << 5);
uint32_t mb = MB(ctx->opcode) | (mbn << 5);
uint32_t me = 63 - sh;
if (mb <= me) {
tcg_gen_deposit_tl(t_ra, t_ra, t_rs, sh, me - mb + 1);
} else {
target_ulong mask = MASK(mb, me);
TCGv t1 = tcg_temp_new();
tcg_gen_rotli_tl(t1, t_rs, sh);
tcg_gen_andi_tl(t1, t1, mask);
tcg_gen_andi_tl(t_ra, t_ra, ~mask);
tcg_gen_or_tl(t_ra, t_ra, t1);
}
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, t_ra);
}
}
GEN_PPC64_R4(rldimi, 0x1E, 0x06);
#endif
/*** Integer shift ***/
/* slw & slw. */
static void gen_slw(DisasContext *ctx)
{
TCGv t0, t1;
t0 = tcg_temp_new();
/* AND rS with a mask that is 0 when rB >= 0x20 */
#if defined(TARGET_PPC64)
tcg_gen_shli_tl(t0, cpu_gpr[rB(ctx->opcode)], 0x3a);
tcg_gen_sari_tl(t0, t0, 0x3f);
#else
tcg_gen_shli_tl(t0, cpu_gpr[rB(ctx->opcode)], 0x1a);
tcg_gen_sari_tl(t0, t0, 0x1f);
#endif
tcg_gen_andc_tl(t0, cpu_gpr[rS(ctx->opcode)], t0);
t1 = tcg_temp_new();
tcg_gen_andi_tl(t1, cpu_gpr[rB(ctx->opcode)], 0x1f);
tcg_gen_shl_tl(cpu_gpr[rA(ctx->opcode)], t0, t1);
tcg_gen_ext32u_tl(cpu_gpr[rA(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]);
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, cpu_gpr[rA(ctx->opcode)]);
}
}
/* sraw & sraw. */
static void gen_sraw(DisasContext *ctx)
{
gen_helper_sraw(cpu_gpr[rA(ctx->opcode)], tcg_env,
cpu_gpr[rS(ctx->opcode)], cpu_gpr[rB(ctx->opcode)]);
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, cpu_gpr[rA(ctx->opcode)]);
}
}
/* srawi & srawi. */
static void gen_srawi(DisasContext *ctx)
{
int sh = SH(ctx->opcode);
TCGv dst = cpu_gpr[rA(ctx->opcode)];
TCGv src = cpu_gpr[rS(ctx->opcode)];
if (sh == 0) {
tcg_gen_ext32s_tl(dst, src);
tcg_gen_movi_tl(cpu_ca, 0);
if (is_isa300(ctx)) {
tcg_gen_movi_tl(cpu_ca32, 0);
}
} else {
TCGv t0;
tcg_gen_ext32s_tl(dst, src);
tcg_gen_andi_tl(cpu_ca, dst, (1ULL << sh) - 1);
t0 = tcg_temp_new();
tcg_gen_sari_tl(t0, dst, TARGET_LONG_BITS - 1);
tcg_gen_and_tl(cpu_ca, cpu_ca, t0);
tcg_gen_setcondi_tl(TCG_COND_NE, cpu_ca, cpu_ca, 0);
if (is_isa300(ctx)) {
tcg_gen_mov_tl(cpu_ca32, cpu_ca);
}
tcg_gen_sari_tl(dst, dst, sh);
}
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, dst);
}
}
/* srw & srw. */
static void gen_srw(DisasContext *ctx)
{
TCGv t0, t1;
t0 = tcg_temp_new();
/* AND rS with a mask that is 0 when rB >= 0x20 */
#if defined(TARGET_PPC64)
tcg_gen_shli_tl(t0, cpu_gpr[rB(ctx->opcode)], 0x3a);
tcg_gen_sari_tl(t0, t0, 0x3f);
#else
tcg_gen_shli_tl(t0, cpu_gpr[rB(ctx->opcode)], 0x1a);
tcg_gen_sari_tl(t0, t0, 0x1f);
#endif
tcg_gen_andc_tl(t0, cpu_gpr[rS(ctx->opcode)], t0);
tcg_gen_ext32u_tl(t0, t0);
t1 = tcg_temp_new();
tcg_gen_andi_tl(t1, cpu_gpr[rB(ctx->opcode)], 0x1f);
tcg_gen_shr_tl(cpu_gpr[rA(ctx->opcode)], t0, t1);
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, cpu_gpr[rA(ctx->opcode)]);
}
}
#if defined(TARGET_PPC64)
/* sld & sld. */
static void gen_sld(DisasContext *ctx)
{
TCGv t0, t1;
t0 = tcg_temp_new();
/* AND rS with a mask that is 0 when rB >= 0x40 */
tcg_gen_shli_tl(t0, cpu_gpr[rB(ctx->opcode)], 0x39);
tcg_gen_sari_tl(t0, t0, 0x3f);
tcg_gen_andc_tl(t0, cpu_gpr[rS(ctx->opcode)], t0);
t1 = tcg_temp_new();
tcg_gen_andi_tl(t1, cpu_gpr[rB(ctx->opcode)], 0x3f);
tcg_gen_shl_tl(cpu_gpr[rA(ctx->opcode)], t0, t1);
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, cpu_gpr[rA(ctx->opcode)]);
}
}
/* srad & srad. */
static void gen_srad(DisasContext *ctx)
{
gen_helper_srad(cpu_gpr[rA(ctx->opcode)], tcg_env,
cpu_gpr[rS(ctx->opcode)], cpu_gpr[rB(ctx->opcode)]);
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, cpu_gpr[rA(ctx->opcode)]);
}
}
/* sradi & sradi. */
static inline void gen_sradi(DisasContext *ctx, int n)
{
int sh = SH(ctx->opcode) + (n << 5);
TCGv dst = cpu_gpr[rA(ctx->opcode)];
TCGv src = cpu_gpr[rS(ctx->opcode)];
if (sh == 0) {
tcg_gen_mov_tl(dst, src);
tcg_gen_movi_tl(cpu_ca, 0);
if (is_isa300(ctx)) {
tcg_gen_movi_tl(cpu_ca32, 0);
}
} else {
TCGv t0;
tcg_gen_andi_tl(cpu_ca, src, (1ULL << sh) - 1);
t0 = tcg_temp_new();
tcg_gen_sari_tl(t0, src, TARGET_LONG_BITS - 1);
tcg_gen_and_tl(cpu_ca, cpu_ca, t0);
tcg_gen_setcondi_tl(TCG_COND_NE, cpu_ca, cpu_ca, 0);
if (is_isa300(ctx)) {
tcg_gen_mov_tl(cpu_ca32, cpu_ca);
}
tcg_gen_sari_tl(dst, src, sh);
}
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, dst);
}
}
static void gen_sradi0(DisasContext *ctx)
{
gen_sradi(ctx, 0);
}
static void gen_sradi1(DisasContext *ctx)
{
gen_sradi(ctx, 1);
}
/* extswsli & extswsli. */
static inline void gen_extswsli(DisasContext *ctx, int n)
{
int sh = SH(ctx->opcode) + (n << 5);
TCGv dst = cpu_gpr[rA(ctx->opcode)];
TCGv src = cpu_gpr[rS(ctx->opcode)];
tcg_gen_ext32s_tl(dst, src);
tcg_gen_shli_tl(dst, dst, sh);
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, dst);
}
}
static void gen_extswsli0(DisasContext *ctx)
{
gen_extswsli(ctx, 0);
}
static void gen_extswsli1(DisasContext *ctx)
{
gen_extswsli(ctx, 1);
}
/* srd & srd. */
static void gen_srd(DisasContext *ctx)
{
TCGv t0, t1;
t0 = tcg_temp_new();
/* AND rS with a mask that is 0 when rB >= 0x40 */
tcg_gen_shli_tl(t0, cpu_gpr[rB(ctx->opcode)], 0x39);
tcg_gen_sari_tl(t0, t0, 0x3f);
tcg_gen_andc_tl(t0, cpu_gpr[rS(ctx->opcode)], t0);
t1 = tcg_temp_new();
tcg_gen_andi_tl(t1, cpu_gpr[rB(ctx->opcode)], 0x3f);
tcg_gen_shr_tl(cpu_gpr[rA(ctx->opcode)], t0, t1);
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, cpu_gpr[rA(ctx->opcode)]);
}
}
#endif
/*** Addressing modes ***/
/* Register indirect with immediate index : EA = (rA|0) + SIMM */
static inline void gen_addr_imm_index(DisasContext *ctx, TCGv EA,
target_long maskl)
{
target_long simm = SIMM(ctx->opcode);
simm &= ~maskl;
if (rA(ctx->opcode) == 0) {
if (NARROW_MODE(ctx)) {
simm = (uint32_t)simm;
}
tcg_gen_movi_tl(EA, simm);
} else if (likely(simm != 0)) {
tcg_gen_addi_tl(EA, cpu_gpr[rA(ctx->opcode)], simm);
if (NARROW_MODE(ctx)) {
tcg_gen_ext32u_tl(EA, EA);
}
} else {
if (NARROW_MODE(ctx)) {
tcg_gen_ext32u_tl(EA, cpu_gpr[rA(ctx->opcode)]);
} else {
tcg_gen_mov_tl(EA, cpu_gpr[rA(ctx->opcode)]);
}
}
}
static inline void gen_addr_reg_index(DisasContext *ctx, TCGv EA)
{
if (rA(ctx->opcode) == 0) {
if (NARROW_MODE(ctx)) {
tcg_gen_ext32u_tl(EA, cpu_gpr[rB(ctx->opcode)]);
} else {
tcg_gen_mov_tl(EA, cpu_gpr[rB(ctx->opcode)]);
}
} else {
tcg_gen_add_tl(EA, cpu_gpr[rA(ctx->opcode)], cpu_gpr[rB(ctx->opcode)]);
if (NARROW_MODE(ctx)) {
tcg_gen_ext32u_tl(EA, EA);
}
}
}
static inline void gen_addr_register(DisasContext *ctx, TCGv EA)
{
if (rA(ctx->opcode) == 0) {
tcg_gen_movi_tl(EA, 0);
} else if (NARROW_MODE(ctx)) {
tcg_gen_ext32u_tl(EA, cpu_gpr[rA(ctx->opcode)]);
} else {
tcg_gen_mov_tl(EA, cpu_gpr[rA(ctx->opcode)]);
}
}
static inline void gen_addr_add(DisasContext *ctx, TCGv ret, TCGv arg1,
target_long val)
{
tcg_gen_addi_tl(ret, arg1, val);
if (NARROW_MODE(ctx)) {
tcg_gen_ext32u_tl(ret, ret);
}
}
static inline void gen_align_no_le(DisasContext *ctx)
{
gen_exception_err(ctx, POWERPC_EXCP_ALIGN,
(ctx->opcode & 0x03FF0000) | POWERPC_EXCP_ALIGN_LE);
}
static TCGv do_ea_calc(DisasContext *ctx, int ra, TCGv displ)
{
TCGv ea = tcg_temp_new();
if (ra) {
tcg_gen_add_tl(ea, cpu_gpr[ra], displ);
} else {
tcg_gen_mov_tl(ea, displ);
}
if (NARROW_MODE(ctx)) {
tcg_gen_ext32u_tl(ea, ea);
}
return ea;
}
/*** Integer load ***/
#define DEF_MEMOP(op) ((op) | ctx->default_tcg_memop_mask)
#define BSWAP_MEMOP(op) ((op) | (ctx->default_tcg_memop_mask ^ MO_BSWAP))
#define GEN_QEMU_LOAD_TL(ldop, op) \
static void glue(gen_qemu_, ldop)(DisasContext *ctx, \
TCGv val, \
TCGv addr) \
{ \
tcg_gen_qemu_ld_tl(val, addr, ctx->mem_idx, op); \
}
GEN_QEMU_LOAD_TL(ld8u, DEF_MEMOP(MO_UB))
GEN_QEMU_LOAD_TL(ld16u, DEF_MEMOP(MO_UW))
GEN_QEMU_LOAD_TL(ld16s, DEF_MEMOP(MO_SW))
GEN_QEMU_LOAD_TL(ld32u, DEF_MEMOP(MO_UL))
GEN_QEMU_LOAD_TL(ld32s, DEF_MEMOP(MO_SL))
GEN_QEMU_LOAD_TL(ld16ur, BSWAP_MEMOP(MO_UW))
GEN_QEMU_LOAD_TL(ld32ur, BSWAP_MEMOP(MO_UL))
#define GEN_QEMU_LOAD_64(ldop, op) \
static void glue(gen_qemu_, glue(ldop, _i64))(DisasContext *ctx, \
TCGv_i64 val, \
TCGv addr) \
{ \
tcg_gen_qemu_ld_i64(val, addr, ctx->mem_idx, op); \
}
GEN_QEMU_LOAD_64(ld8u, DEF_MEMOP(MO_UB))
GEN_QEMU_LOAD_64(ld16u, DEF_MEMOP(MO_UW))
GEN_QEMU_LOAD_64(ld32u, DEF_MEMOP(MO_UL))
GEN_QEMU_LOAD_64(ld32s, DEF_MEMOP(MO_SL))
GEN_QEMU_LOAD_64(ld64, DEF_MEMOP(MO_UQ))
#if defined(TARGET_PPC64)
GEN_QEMU_LOAD_64(ld64ur, BSWAP_MEMOP(MO_UQ))
#endif
#define GEN_QEMU_STORE_TL(stop, op) \
static void glue(gen_qemu_, stop)(DisasContext *ctx, \
TCGv val, \
TCGv addr) \
{ \
tcg_gen_qemu_st_tl(val, addr, ctx->mem_idx, op); \
}
#if defined(TARGET_PPC64) || !defined(CONFIG_USER_ONLY)
GEN_QEMU_STORE_TL(st8, DEF_MEMOP(MO_UB))
#endif
GEN_QEMU_STORE_TL(st16, DEF_MEMOP(MO_UW))
GEN_QEMU_STORE_TL(st32, DEF_MEMOP(MO_UL))
GEN_QEMU_STORE_TL(st16r, BSWAP_MEMOP(MO_UW))
GEN_QEMU_STORE_TL(st32r, BSWAP_MEMOP(MO_UL))
#define GEN_QEMU_STORE_64(stop, op) \
static void glue(gen_qemu_, glue(stop, _i64))(DisasContext *ctx, \
TCGv_i64 val, \
TCGv addr) \
{ \
tcg_gen_qemu_st_i64(val, addr, ctx->mem_idx, op); \
}
GEN_QEMU_STORE_64(st8, DEF_MEMOP(MO_UB))
GEN_QEMU_STORE_64(st16, DEF_MEMOP(MO_UW))
GEN_QEMU_STORE_64(st32, DEF_MEMOP(MO_UL))
GEN_QEMU_STORE_64(st64, DEF_MEMOP(MO_UQ))
#if defined(TARGET_PPC64)
GEN_QEMU_STORE_64(st64r, BSWAP_MEMOP(MO_UQ))
#endif
#define GEN_LDX_E(name, ldop, opc2, opc3, type, type2, chk) \
static void glue(gen_, name##x)(DisasContext *ctx) \
{ \
TCGv EA; \
chk(ctx); \
gen_set_access_type(ctx, ACCESS_INT); \
EA = tcg_temp_new(); \
gen_addr_reg_index(ctx, EA); \
gen_qemu_##ldop(ctx, cpu_gpr[rD(ctx->opcode)], EA); \
}
#define GEN_LDX(name, ldop, opc2, opc3, type) \
GEN_LDX_E(name, ldop, opc2, opc3, type, PPC_NONE, CHK_NONE)
#define GEN_LDX_HVRM(name, ldop, opc2, opc3, type) \
GEN_LDX_E(name, ldop, opc2, opc3, type, PPC_NONE, CHK_HVRM)
#define GEN_LDEPX(name, ldop, opc2, opc3) \
static void glue(gen_, name##epx)(DisasContext *ctx) \
{ \
TCGv EA; \
CHK_SV(ctx); \
gen_set_access_type(ctx, ACCESS_INT); \
EA = tcg_temp_new(); \
gen_addr_reg_index(ctx, EA); \
tcg_gen_qemu_ld_tl(cpu_gpr[rD(ctx->opcode)], EA, PPC_TLB_EPID_LOAD, ldop);\
}
GEN_LDEPX(lb, DEF_MEMOP(MO_UB), 0x1F, 0x02)
GEN_LDEPX(lh, DEF_MEMOP(MO_UW), 0x1F, 0x08)
GEN_LDEPX(lw, DEF_MEMOP(MO_UL), 0x1F, 0x00)
#if defined(TARGET_PPC64)
GEN_LDEPX(ld, DEF_MEMOP(MO_UQ), 0x1D, 0x00)
#endif
#if defined(TARGET_PPC64)
/* CI load/store variants */
GEN_LDX_HVRM(ldcix, ld64_i64, 0x15, 0x1b, PPC_CILDST)
GEN_LDX_HVRM(lwzcix, ld32u, 0x15, 0x15, PPC_CILDST)
GEN_LDX_HVRM(lhzcix, ld16u, 0x15, 0x19, PPC_CILDST)
GEN_LDX_HVRM(lbzcix, ld8u, 0x15, 0x1a, PPC_CILDST)
#endif
/*** Integer store ***/
#define GEN_STX_E(name, stop, opc2, opc3, type, type2, chk) \
static void glue(gen_, name##x)(DisasContext *ctx) \
{ \
TCGv EA; \
chk(ctx); \
gen_set_access_type(ctx, ACCESS_INT); \
EA = tcg_temp_new(); \
gen_addr_reg_index(ctx, EA); \
gen_qemu_##stop(ctx, cpu_gpr[rS(ctx->opcode)], EA); \
}
#define GEN_STX(name, stop, opc2, opc3, type) \
GEN_STX_E(name, stop, opc2, opc3, type, PPC_NONE, CHK_NONE)
#define GEN_STX_HVRM(name, stop, opc2, opc3, type) \
GEN_STX_E(name, stop, opc2, opc3, type, PPC_NONE, CHK_HVRM)
#define GEN_STEPX(name, stop, opc2, opc3) \
static void glue(gen_, name##epx)(DisasContext *ctx) \
{ \
TCGv EA; \
CHK_SV(ctx); \
gen_set_access_type(ctx, ACCESS_INT); \
EA = tcg_temp_new(); \
gen_addr_reg_index(ctx, EA); \
tcg_gen_qemu_st_tl( \
cpu_gpr[rD(ctx->opcode)], EA, PPC_TLB_EPID_STORE, stop); \
}
GEN_STEPX(stb, DEF_MEMOP(MO_UB), 0x1F, 0x06)
GEN_STEPX(sth, DEF_MEMOP(MO_UW), 0x1F, 0x0C)
GEN_STEPX(stw, DEF_MEMOP(MO_UL), 0x1F, 0x04)
#if defined(TARGET_PPC64)
GEN_STEPX(std, DEF_MEMOP(MO_UQ), 0x1d, 0x04)
#endif
#if defined(TARGET_PPC64)
GEN_STX_HVRM(stdcix, st64_i64, 0x15, 0x1f, PPC_CILDST)
GEN_STX_HVRM(stwcix, st32, 0x15, 0x1c, PPC_CILDST)
GEN_STX_HVRM(sthcix, st16, 0x15, 0x1d, PPC_CILDST)
GEN_STX_HVRM(stbcix, st8, 0x15, 0x1e, PPC_CILDST)
#endif
/*** Integer load and store with byte reverse ***/
/* lhbrx */
GEN_LDX(lhbr, ld16ur, 0x16, 0x18, PPC_INTEGER);
/* lwbrx */
GEN_LDX(lwbr, ld32ur, 0x16, 0x10, PPC_INTEGER);
#if defined(TARGET_PPC64)
/* ldbrx */
GEN_LDX_E(ldbr, ld64ur_i64, 0x14, 0x10, PPC_NONE, PPC2_DBRX, CHK_NONE);
/* stdbrx */
GEN_STX_E(stdbr, st64r_i64, 0x14, 0x14, PPC_NONE, PPC2_DBRX, CHK_NONE);
#endif /* TARGET_PPC64 */
/* sthbrx */
GEN_STX(sthbr, st16r, 0x16, 0x1C, PPC_INTEGER);
/* stwbrx */
GEN_STX(stwbr, st32r, 0x16, 0x14, PPC_INTEGER);
/*** Integer load and store multiple ***/
/* lmw */
static void gen_lmw(DisasContext *ctx)
{
TCGv t0;
TCGv_i32 t1;
if (ctx->le_mode) {
gen_align_no_le(ctx);
return;
}
gen_set_access_type(ctx, ACCESS_INT);
t0 = tcg_temp_new();
t1 = tcg_constant_i32(rD(ctx->opcode));
gen_addr_imm_index(ctx, t0, 0);
gen_helper_lmw(tcg_env, t0, t1);
}
/* stmw */
static void gen_stmw(DisasContext *ctx)
{
TCGv t0;
TCGv_i32 t1;
if (ctx->le_mode) {
gen_align_no_le(ctx);
return;
}
gen_set_access_type(ctx, ACCESS_INT);
t0 = tcg_temp_new();
t1 = tcg_constant_i32(rS(ctx->opcode));
gen_addr_imm_index(ctx, t0, 0);
gen_helper_stmw(tcg_env, t0, t1);
}
/*** Integer load and store strings ***/
/* lswi */
/*
* PowerPC32 specification says we must generate an exception if rA is
* in the range of registers to be loaded. In an other hand, IBM says
* this is valid, but rA won't be loaded. For now, I'll follow the
* spec...
*/
static void gen_lswi(DisasContext *ctx)
{
TCGv t0;
TCGv_i32 t1, t2;
int nb = NB(ctx->opcode);
int start = rD(ctx->opcode);
int ra = rA(ctx->opcode);
int nr;
if (ctx->le_mode) {
gen_align_no_le(ctx);
return;
}
if (nb == 0) {
nb = 32;
}
nr = DIV_ROUND_UP(nb, 4);
if (unlikely(lsw_reg_in_range(start, nr, ra))) {
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_LSWX);
return;
}
gen_set_access_type(ctx, ACCESS_INT);
t0 = tcg_temp_new();
gen_addr_register(ctx, t0);
t1 = tcg_constant_i32(nb);
t2 = tcg_constant_i32(start);
gen_helper_lsw(tcg_env, t0, t1, t2);
}
/* lswx */
static void gen_lswx(DisasContext *ctx)
{
TCGv t0;
TCGv_i32 t1, t2, t3;
if (ctx->le_mode) {
gen_align_no_le(ctx);
return;
}
gen_set_access_type(ctx, ACCESS_INT);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
t1 = tcg_constant_i32(rD(ctx->opcode));
t2 = tcg_constant_i32(rA(ctx->opcode));
t3 = tcg_constant_i32(rB(ctx->opcode));
gen_helper_lswx(tcg_env, t0, t1, t2, t3);
}
/* stswi */
static void gen_stswi(DisasContext *ctx)
{
TCGv t0;
TCGv_i32 t1, t2;
int nb = NB(ctx->opcode);
if (ctx->le_mode) {
gen_align_no_le(ctx);
return;
}
gen_set_access_type(ctx, ACCESS_INT);
t0 = tcg_temp_new();
gen_addr_register(ctx, t0);
if (nb == 0) {
nb = 32;
}
t1 = tcg_constant_i32(nb);
t2 = tcg_constant_i32(rS(ctx->opcode));
gen_helper_stsw(tcg_env, t0, t1, t2);
}
/* stswx */
static void gen_stswx(DisasContext *ctx)
{
TCGv t0;
TCGv_i32 t1, t2;
if (ctx->le_mode) {
gen_align_no_le(ctx);
return;
}
gen_set_access_type(ctx, ACCESS_INT);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
t1 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(t1, cpu_xer);
tcg_gen_andi_i32(t1, t1, 0x7F);
t2 = tcg_constant_i32(rS(ctx->opcode));
gen_helper_stsw(tcg_env, t0, t1, t2);
}
#if !defined(CONFIG_USER_ONLY)
static inline void gen_check_tlb_flush(DisasContext *ctx, bool global)
{
TCGv_i32 t;
TCGLabel *l;
if (!ctx->lazy_tlb_flush) {
return;
}
l = gen_new_label();
t = tcg_temp_new_i32();
tcg_gen_ld_i32(t, tcg_env, offsetof(CPUPPCState, tlb_need_flush));
tcg_gen_brcondi_i32(TCG_COND_EQ, t, 0, l);
if (global) {
gen_helper_check_tlb_flush_global(tcg_env);
} else {
gen_helper_check_tlb_flush_local(tcg_env);
}
gen_set_label(l);
if (global) {
/*
* Global TLB flush uses async-work which must run before the
* next instruction, so this must be the last in the TB.
*/
ctx->base.is_jmp = DISAS_EXIT_UPDATE;
}
}
#else
static inline void gen_check_tlb_flush(DisasContext *ctx, bool global) { }
#endif
/* isync */
static void gen_isync(DisasContext *ctx)
{
/*
* We need to check for a pending TLB flush. This can only happen in
* kernel mode however so check MSR_PR
*/
if (!ctx->pr) {
gen_check_tlb_flush(ctx, false);
}
tcg_gen_mb(TCG_MO_ALL | TCG_BAR_SC);
ctx->base.is_jmp = DISAS_EXIT_UPDATE;
}
static void gen_load_locked(DisasContext *ctx, MemOp memop)
{
TCGv gpr = cpu_gpr[rD(ctx->opcode)];
TCGv t0 = tcg_temp_new();
gen_set_access_type(ctx, ACCESS_RES);
gen_addr_reg_index(ctx, t0);
tcg_gen_qemu_ld_tl(gpr, t0, ctx->mem_idx, DEF_MEMOP(memop) | MO_ALIGN);
tcg_gen_mov_tl(cpu_reserve, t0);
tcg_gen_movi_tl(cpu_reserve_length, memop_size(memop));
tcg_gen_mov_tl(cpu_reserve_val, gpr);
}
#define LARX(name, memop) \
static void gen_##name(DisasContext *ctx) \
{ \
gen_load_locked(ctx, memop); \
}
/* lwarx */
LARX(lbarx, MO_UB)
LARX(lharx, MO_UW)
LARX(lwarx, MO_UL)
static void gen_fetch_inc_conditional(DisasContext *ctx, MemOp memop,
TCGv EA, TCGCond cond, int addend)
{
TCGv t = tcg_temp_new();
TCGv t2 = tcg_temp_new();
TCGv u = tcg_temp_new();
tcg_gen_qemu_ld_tl(t, EA, ctx->mem_idx, memop);
tcg_gen_addi_tl(t2, EA, memop_size(memop));
tcg_gen_qemu_ld_tl(t2, t2, ctx->mem_idx, memop);
tcg_gen_addi_tl(u, t, addend);
/* E.g. for fetch and increment bounded... */
/* mem(EA,s) = (t != t2 ? u = t + 1 : t) */
tcg_gen_movcond_tl(cond, u, t, t2, u, t);
tcg_gen_qemu_st_tl(u, EA, ctx->mem_idx, memop);
/* RT = (t != t2 ? t : u = 1<<(s*8-1)) */
tcg_gen_movi_tl(u, 1 << (memop_size(memop) * 8 - 1));
tcg_gen_movcond_tl(cond, cpu_gpr[rD(ctx->opcode)], t, t2, t, u);
}
static void gen_ld_atomic(DisasContext *ctx, MemOp memop)
{
uint32_t gpr_FC = FC(ctx->opcode);
TCGv EA = tcg_temp_new();
int rt = rD(ctx->opcode);
bool need_serial;
TCGv src, dst;
gen_addr_register(ctx, EA);
dst = cpu_gpr[rt];
src = cpu_gpr[(rt + 1) & 31];
need_serial = false;
memop |= MO_ALIGN;
switch (gpr_FC) {
case 0: /* Fetch and add */
tcg_gen_atomic_fetch_add_tl(dst, EA, src, ctx->mem_idx, memop);
break;
case 1: /* Fetch and xor */
tcg_gen_atomic_fetch_xor_tl(dst, EA, src, ctx->mem_idx, memop);
break;
case 2: /* Fetch and or */
tcg_gen_atomic_fetch_or_tl(dst, EA, src, ctx->mem_idx, memop);
break;
case 3: /* Fetch and 'and' */
tcg_gen_atomic_fetch_and_tl(dst, EA, src, ctx->mem_idx, memop);
break;
case 4: /* Fetch and max unsigned */
tcg_gen_atomic_fetch_umax_tl(dst, EA, src, ctx->mem_idx, memop);
break;
case 5: /* Fetch and max signed */
tcg_gen_atomic_fetch_smax_tl(dst, EA, src, ctx->mem_idx, memop);
break;
case 6: /* Fetch and min unsigned */
tcg_gen_atomic_fetch_umin_tl(dst, EA, src, ctx->mem_idx, memop);
break;
case 7: /* Fetch and min signed */
tcg_gen_atomic_fetch_smin_tl(dst, EA, src, ctx->mem_idx, memop);
break;
case 8: /* Swap */
tcg_gen_atomic_xchg_tl(dst, EA, src, ctx->mem_idx, memop);
break;
case 16: /* Compare and swap not equal */
if (tb_cflags(ctx->base.tb) & CF_PARALLEL) {
need_serial = true;
} else {
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
tcg_gen_qemu_ld_tl(t0, EA, ctx->mem_idx, memop);
if ((memop & MO_SIZE) == MO_64 || TARGET_LONG_BITS == 32) {
tcg_gen_mov_tl(t1, src);
} else {
tcg_gen_ext32u_tl(t1, src);
}
tcg_gen_movcond_tl(TCG_COND_NE, t1, t0, t1,
cpu_gpr[(rt + 2) & 31], t0);
tcg_gen_qemu_st_tl(t1, EA, ctx->mem_idx, memop);
tcg_gen_mov_tl(dst, t0);
}
break;
case 24: /* Fetch and increment bounded */
if (tb_cflags(ctx->base.tb) & CF_PARALLEL) {
need_serial = true;
} else {
gen_fetch_inc_conditional(ctx, memop, EA, TCG_COND_NE, 1);
}
break;
case 25: /* Fetch and increment equal */
if (tb_cflags(ctx->base.tb) & CF_PARALLEL) {
need_serial = true;
} else {
gen_fetch_inc_conditional(ctx, memop, EA, TCG_COND_EQ, 1);
}
break;
case 28: /* Fetch and decrement bounded */
if (tb_cflags(ctx->base.tb) & CF_PARALLEL) {
need_serial = true;
} else {
gen_fetch_inc_conditional(ctx, memop, EA, TCG_COND_NE, -1);
}
break;
default:
/* invoke data storage error handler */
gen_exception_err(ctx, POWERPC_EXCP_DSI, POWERPC_EXCP_INVAL);
}
if (need_serial) {
/* Restart with exclusive lock. */
gen_helper_exit_atomic(tcg_env);
ctx->base.is_jmp = DISAS_NORETURN;
}
}
static void gen_lwat(DisasContext *ctx)
{
gen_ld_atomic(ctx, DEF_MEMOP(MO_UL));
}
#ifdef TARGET_PPC64
static void gen_ldat(DisasContext *ctx)
{
gen_ld_atomic(ctx, DEF_MEMOP(MO_UQ));
}
#endif
static void gen_st_atomic(DisasContext *ctx, MemOp memop)
{
uint32_t gpr_FC = FC(ctx->opcode);
TCGv EA = tcg_temp_new();
TCGv src, discard;
gen_addr_register(ctx, EA);
src = cpu_gpr[rD(ctx->opcode)];
discard = tcg_temp_new();
memop |= MO_ALIGN;
switch (gpr_FC) {
case 0: /* add and Store */
tcg_gen_atomic_add_fetch_tl(discard, EA, src, ctx->mem_idx, memop);
break;
case 1: /* xor and Store */
tcg_gen_atomic_xor_fetch_tl(discard, EA, src, ctx->mem_idx, memop);
break;
case 2: /* Or and Store */
tcg_gen_atomic_or_fetch_tl(discard, EA, src, ctx->mem_idx, memop);
break;
case 3: /* 'and' and Store */
tcg_gen_atomic_and_fetch_tl(discard, EA, src, ctx->mem_idx, memop);
break;
case 4: /* Store max unsigned */
tcg_gen_atomic_umax_fetch_tl(discard, EA, src, ctx->mem_idx, memop);
break;
case 5: /* Store max signed */
tcg_gen_atomic_smax_fetch_tl(discard, EA, src, ctx->mem_idx, memop);
break;
case 6: /* Store min unsigned */
tcg_gen_atomic_umin_fetch_tl(discard, EA, src, ctx->mem_idx, memop);
break;
case 7: /* Store min signed */
tcg_gen_atomic_smin_fetch_tl(discard, EA, src, ctx->mem_idx, memop);
break;
case 24: /* Store twin */
if (tb_cflags(ctx->base.tb) & CF_PARALLEL) {
/* Restart with exclusive lock. */
gen_helper_exit_atomic(tcg_env);
ctx->base.is_jmp = DISAS_NORETURN;
} else {
TCGv t = tcg_temp_new();
TCGv t2 = tcg_temp_new();
TCGv s = tcg_temp_new();
TCGv s2 = tcg_temp_new();
TCGv ea_plus_s = tcg_temp_new();
tcg_gen_qemu_ld_tl(t, EA, ctx->mem_idx, memop);
tcg_gen_addi_tl(ea_plus_s, EA, memop_size(memop));
tcg_gen_qemu_ld_tl(t2, ea_plus_s, ctx->mem_idx, memop);
tcg_gen_movcond_tl(TCG_COND_EQ, s, t, t2, src, t);
tcg_gen_movcond_tl(TCG_COND_EQ, s2, t, t2, src, t2);
tcg_gen_qemu_st_tl(s, EA, ctx->mem_idx, memop);
tcg_gen_qemu_st_tl(s2, ea_plus_s, ctx->mem_idx, memop);
}
break;
default:
/* invoke data storage error handler */
gen_exception_err(ctx, POWERPC_EXCP_DSI, POWERPC_EXCP_INVAL);
}
}
static void gen_stwat(DisasContext *ctx)
{
gen_st_atomic(ctx, DEF_MEMOP(MO_UL));
}
#ifdef TARGET_PPC64
static void gen_stdat(DisasContext *ctx)
{
gen_st_atomic(ctx, DEF_MEMOP(MO_UQ));
}
#endif
static void gen_conditional_store(DisasContext *ctx, MemOp memop)
{
TCGLabel *lfail;
TCGv EA;
TCGv cr0;
TCGv t0;
int rs = rS(ctx->opcode);
lfail = gen_new_label();
EA = tcg_temp_new();
cr0 = tcg_temp_new();
t0 = tcg_temp_new();
tcg_gen_mov_tl(cr0, cpu_so);
gen_set_access_type(ctx, ACCESS_RES);
gen_addr_reg_index(ctx, EA);
tcg_gen_brcond_tl(TCG_COND_NE, EA, cpu_reserve, lfail);
tcg_gen_brcondi_tl(TCG_COND_NE, cpu_reserve_length, memop_size(memop), lfail);
tcg_gen_atomic_cmpxchg_tl(t0, cpu_reserve, cpu_reserve_val,
cpu_gpr[rs], ctx->mem_idx,
DEF_MEMOP(memop) | MO_ALIGN);
tcg_gen_setcond_tl(TCG_COND_EQ, t0, t0, cpu_reserve_val);
tcg_gen_shli_tl(t0, t0, CRF_EQ_BIT);
tcg_gen_or_tl(cr0, cr0, t0);
gen_set_label(lfail);
tcg_gen_trunc_tl_i32(cpu_crf[0], cr0);
tcg_gen_movi_tl(cpu_reserve, -1);
}
#define STCX(name, memop) \
static void gen_##name(DisasContext *ctx) \
{ \
gen_conditional_store(ctx, memop); \
}
STCX(stbcx_, MO_UB)
STCX(sthcx_, MO_UW)
STCX(stwcx_, MO_UL)
#if defined(TARGET_PPC64)
/* ldarx */
LARX(ldarx, MO_UQ)
/* stdcx. */
STCX(stdcx_, MO_UQ)
/* lqarx */
static void gen_lqarx(DisasContext *ctx)
{
int rd = rD(ctx->opcode);
TCGv EA, hi, lo;
TCGv_i128 t16;
if (unlikely((rd & 1) || (rd == rA(ctx->opcode)) ||
(rd == rB(ctx->opcode)))) {
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
return;
}
gen_set_access_type(ctx, ACCESS_RES);
EA = tcg_temp_new();
gen_addr_reg_index(ctx, EA);
/* Note that the low part is always in RD+1, even in LE mode. */
lo = cpu_gpr[rd + 1];
hi = cpu_gpr[rd];
t16 = tcg_temp_new_i128();
tcg_gen_qemu_ld_i128(t16, EA, ctx->mem_idx, DEF_MEMOP(MO_128 | MO_ALIGN));
tcg_gen_extr_i128_i64(lo, hi, t16);
tcg_gen_mov_tl(cpu_reserve, EA);
tcg_gen_movi_tl(cpu_reserve_length, 16);
tcg_gen_st_tl(hi, tcg_env, offsetof(CPUPPCState, reserve_val));
tcg_gen_st_tl(lo, tcg_env, offsetof(CPUPPCState, reserve_val2));
}
/* stqcx. */
static void gen_stqcx_(DisasContext *ctx)
{
TCGLabel *lfail;
TCGv EA, t0, t1;
TCGv cr0;
TCGv_i128 cmp, val;
int rs = rS(ctx->opcode);
if (unlikely(rs & 1)) {
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
return;
}
lfail = gen_new_label();
EA = tcg_temp_new();
cr0 = tcg_temp_new();
tcg_gen_mov_tl(cr0, cpu_so);
gen_set_access_type(ctx, ACCESS_RES);
gen_addr_reg_index(ctx, EA);
tcg_gen_brcond_tl(TCG_COND_NE, EA, cpu_reserve, lfail);
tcg_gen_brcondi_tl(TCG_COND_NE, cpu_reserve_length, 16, lfail);
cmp = tcg_temp_new_i128();
val = tcg_temp_new_i128();
tcg_gen_concat_i64_i128(cmp, cpu_reserve_val2, cpu_reserve_val);
/* Note that the low part is always in RS+1, even in LE mode. */
tcg_gen_concat_i64_i128(val, cpu_gpr[rs + 1], cpu_gpr[rs]);
tcg_gen_atomic_cmpxchg_i128(val, cpu_reserve, cmp, val, ctx->mem_idx,
DEF_MEMOP(MO_128 | MO_ALIGN));
t0 = tcg_temp_new();
t1 = tcg_temp_new();
tcg_gen_extr_i128_i64(t1, t0, val);
tcg_gen_xor_tl(t1, t1, cpu_reserve_val2);
tcg_gen_xor_tl(t0, t0, cpu_reserve_val);
tcg_gen_or_tl(t0, t0, t1);
tcg_gen_setcondi_tl(TCG_COND_EQ, t0, t0, 0);
tcg_gen_shli_tl(t0, t0, CRF_EQ_BIT);
tcg_gen_or_tl(cr0, cr0, t0);
gen_set_label(lfail);
tcg_gen_trunc_tl_i32(cpu_crf[0], cr0);
tcg_gen_movi_tl(cpu_reserve, -1);
}
#endif /* defined(TARGET_PPC64) */
/* wait */
static void gen_wait(DisasContext *ctx)
{
uint32_t wc;
if (ctx->insns_flags & PPC_WAIT) {
/* v2.03-v2.07 define an older incompatible 'wait' encoding. */
if (ctx->insns_flags2 & PPC2_PM_ISA206) {
/* v2.06 introduced the WC field. WC > 0 may be treated as no-op. */
wc = WC(ctx->opcode);
} else {
wc = 0;
}
} else if (ctx->insns_flags2 & PPC2_ISA300) {
/* v3.0 defines a new 'wait' encoding. */
wc = WC(ctx->opcode);
if (ctx->insns_flags2 & PPC2_ISA310) {
uint32_t pl = PL(ctx->opcode);
/* WC 1,2 may be treated as no-op. WC 3 is reserved. */
if (wc == 3) {
gen_invalid(ctx);
return;
}
/* PL 1-3 are reserved. If WC=2 then the insn is treated as noop. */
if (pl > 0 && wc != 2) {
gen_invalid(ctx);
return;
}
} else { /* ISA300 */
/* WC 1-3 are reserved */
if (wc > 0) {
gen_invalid(ctx);
return;
}
}
} else {
warn_report("wait instruction decoded with wrong ISA flags.");
gen_invalid(ctx);
return;
}
/*
* wait without WC field or with WC=0 waits for an exception / interrupt
* to occur.
*/
if (wc == 0) {
TCGv_i32 t0 = tcg_constant_i32(1);
tcg_gen_st_i32(t0, tcg_env,
-offsetof(PowerPCCPU, env) + offsetof(CPUState, halted));
/* Stop translation, as the CPU is supposed to sleep from now */
gen_exception_nip(ctx, EXCP_HLT, ctx->base.pc_next);
}
/*
* Other wait types must not just wait until an exception occurs because
* ignoring their other wake-up conditions could cause a hang.
*
* For v2.06 and 2.07, wc=1,2,3 are architected but may be implemented as
* no-ops.
*
* wc=1 and wc=3 explicitly allow the instruction to be treated as a no-op.
*
* wc=2 waits for an implementation-specific condition, such could be
* always true, so it can be implemented as a no-op.
*
* For v3.1, wc=1,2 are architected but may be implemented as no-ops.
*
* wc=1 (waitrsv) waits for an exception or a reservation to be lost.
* Reservation-loss may have implementation-specific conditions, so it
* can be implemented as a no-op.
*
* wc=2 waits for an exception or an amount of time to pass. This
* amount is implementation-specific so it can be implemented as a
* no-op.
*
* ISA v3.1 allows for execution to resume "in the rare case of
* an implementation-dependent event", so in any case software must
* not depend on the architected resumption condition to become
* true, so no-op implementations should be architecturally correct
* (if suboptimal).
*/
}
#if defined(TARGET_PPC64)
static void gen_doze(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv_i32 t;
CHK_HV(ctx);
translator_io_start(&ctx->base);
t = tcg_constant_i32(PPC_PM_DOZE);
gen_helper_pminsn(tcg_env, t);
/* Stop translation, as the CPU is supposed to sleep from now */
gen_exception_nip(ctx, EXCP_HLT, ctx->base.pc_next);
#endif /* defined(CONFIG_USER_ONLY) */
}
static void gen_nap(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv_i32 t;
CHK_HV(ctx);
translator_io_start(&ctx->base);
t = tcg_constant_i32(PPC_PM_NAP);
gen_helper_pminsn(tcg_env, t);
/* Stop translation, as the CPU is supposed to sleep from now */
gen_exception_nip(ctx, EXCP_HLT, ctx->base.pc_next);
#endif /* defined(CONFIG_USER_ONLY) */
}
static void gen_stop(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv_i32 t;
CHK_HV(ctx);
translator_io_start(&ctx->base);
t = tcg_constant_i32(PPC_PM_STOP);
gen_helper_pminsn(tcg_env, t);
/* Stop translation, as the CPU is supposed to sleep from now */
gen_exception_nip(ctx, EXCP_HLT, ctx->base.pc_next);
#endif /* defined(CONFIG_USER_ONLY) */
}
static void gen_sleep(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv_i32 t;
CHK_HV(ctx);
translator_io_start(&ctx->base);
t = tcg_constant_i32(PPC_PM_SLEEP);
gen_helper_pminsn(tcg_env, t);
/* Stop translation, as the CPU is supposed to sleep from now */
gen_exception_nip(ctx, EXCP_HLT, ctx->base.pc_next);
#endif /* defined(CONFIG_USER_ONLY) */
}
static void gen_rvwinkle(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv_i32 t;
CHK_HV(ctx);
translator_io_start(&ctx->base);
t = tcg_constant_i32(PPC_PM_RVWINKLE);
gen_helper_pminsn(tcg_env, t);
/* Stop translation, as the CPU is supposed to sleep from now */
gen_exception_nip(ctx, EXCP_HLT, ctx->base.pc_next);
#endif /* defined(CONFIG_USER_ONLY) */
}
static inline TCGv gen_write_bhrb(TCGv_ptr base, TCGv offset, TCGv mask, TCGv value)
{
TCGv_ptr tmp = tcg_temp_new_ptr();
/* add base and offset to get address of bhrb entry */
tcg_gen_add_ptr(tmp, base, (TCGv_ptr)offset);
/* store value into bhrb at bhrb_offset */
tcg_gen_st_i64(value, tmp, 0);
/* add 8 to current bhrb_offset */
tcg_gen_addi_tl(offset, offset, 8);
/* apply offset mask */
tcg_gen_and_tl(offset, offset, mask);
return offset;
}
#endif /* #if defined(TARGET_PPC64) */
static inline void gen_update_branch_history(DisasContext *ctx,
target_ulong nip,
TCGv target,
target_long inst_type)
{
#if defined(TARGET_PPC64)
TCGv_ptr base;
TCGv tmp;
TCGv offset;
TCGv mask;
TCGLabel *no_update;
if (ctx->has_cfar) {
tcg_gen_movi_tl(cpu_cfar, nip);
}
if (!ctx->has_bhrb ||
!ctx->bhrb_enable ||
inst_type == BHRB_TYPE_NORECORD) {
return;
}
tmp = tcg_temp_new();
no_update = gen_new_label();
/* check for bhrb filtering */
tcg_gen_ld_tl(tmp, tcg_env, offsetof(CPUPPCState, bhrb_filter));
tcg_gen_andi_tl(tmp, tmp, inst_type);
tcg_gen_brcondi_tl(TCG_COND_EQ, tmp, 0, no_update);
base = tcg_temp_new_ptr();
offset = tcg_temp_new();
mask = tcg_temp_new();
/* load bhrb base address */
tcg_gen_ld_ptr(base, tcg_env, offsetof(CPUPPCState, bhrb_base));
/* load current bhrb_offset */
tcg_gen_ld_tl(offset, tcg_env, offsetof(CPUPPCState, bhrb_offset));
/* load a BHRB offset mask */
tcg_gen_ld_tl(mask, tcg_env, offsetof(CPUPPCState, bhrb_offset_mask));
offset = gen_write_bhrb(base, offset, mask, tcg_constant_i64(nip));
/* Also record the target address for XL-Form branches */
if (inst_type & BHRB_TYPE_XL_FORM) {
/* Set the 'T' bit for target entries */
tcg_gen_ori_tl(tmp, target, 0x2);
offset = gen_write_bhrb(base, offset, mask, tmp);
}
/* save updated bhrb_offset for next time */
tcg_gen_st_tl(offset, tcg_env, offsetof(CPUPPCState, bhrb_offset));
gen_set_label(no_update);
#endif
}
#if defined(TARGET_PPC64)
static void pmu_count_insns(DisasContext *ctx)
{
/*
* Do not bother calling the helper if the PMU isn't counting
* instructions.
*/
if (!ctx->pmu_insn_cnt) {
return;
}
#if !defined(CONFIG_USER_ONLY)
TCGLabel *l;
TCGv t0;
/*
* The PMU insns_inc() helper stops the internal PMU timer if a
* counter overflows happens. In that case, if the guest is
* running with icount and we do not handle it beforehand,
* the helper can trigger a 'bad icount read'.
*/
translator_io_start(&ctx->base);
/* Avoid helper calls when only PMC5-6 are enabled. */
if (!ctx->pmc_other) {
l = gen_new_label();
t0 = tcg_temp_new();
gen_load_spr(t0, SPR_POWER_PMC5);
tcg_gen_addi_tl(t0, t0, ctx->base.num_insns);
gen_store_spr(SPR_POWER_PMC5, t0);
/* Check for overflow, if it's enabled */
if (ctx->mmcr0_pmcjce) {
tcg_gen_brcondi_tl(TCG_COND_LT, t0, PMC_COUNTER_NEGATIVE_VAL, l);
gen_helper_handle_pmc5_overflow(tcg_env);
}
gen_set_label(l);
} else {
gen_helper_insns_inc(tcg_env, tcg_constant_i32(ctx->base.num_insns));
}
#else
/*
* User mode can read (but not write) PMC5 and start/stop
* the PMU via MMCR0_FC. In this case just increment
* PMC5 with base.num_insns.
*/
TCGv t0 = tcg_temp_new();
gen_load_spr(t0, SPR_POWER_PMC5);
tcg_gen_addi_tl(t0, t0, ctx->base.num_insns);
gen_store_spr(SPR_POWER_PMC5, t0);
#endif /* #if !defined(CONFIG_USER_ONLY) */
}
#else
static void pmu_count_insns(DisasContext *ctx)
{
return;
}
#endif /* #if defined(TARGET_PPC64) */
static inline bool use_goto_tb(DisasContext *ctx, target_ulong dest)
{
if (unlikely(ctx->singlestep_enabled)) {
return false;
}
return translator_use_goto_tb(&ctx->base, dest);
}
static void gen_lookup_and_goto_ptr(DisasContext *ctx)
{
if (unlikely(ctx->singlestep_enabled)) {
gen_debug_exception(ctx, false);
} else {
/*
* tcg_gen_lookup_and_goto_ptr will exit the TB if
* CF_NO_GOTO_PTR is set. Count insns now.
*/
if (ctx->base.tb->flags & CF_NO_GOTO_PTR) {
pmu_count_insns(ctx);
}
tcg_gen_lookup_and_goto_ptr();
}
}
/*** Branch ***/
static void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest)
{
if (NARROW_MODE(ctx)) {
dest = (uint32_t) dest;
}
if (use_goto_tb(ctx, dest)) {
pmu_count_insns(ctx);
tcg_gen_goto_tb(n);
tcg_gen_movi_tl(cpu_nip, dest & ~3);
tcg_gen_exit_tb(ctx->base.tb, n);
} else {
tcg_gen_movi_tl(cpu_nip, dest & ~3);
gen_lookup_and_goto_ptr(ctx);
}
}
static inline void gen_setlr(DisasContext *ctx, target_ulong nip)
{
if (NARROW_MODE(ctx)) {
nip = (uint32_t)nip;
}
tcg_gen_movi_tl(cpu_lr, nip);
}
/* b ba bl bla */
static void gen_b(DisasContext *ctx)
{
target_ulong li, target;
/* sign extend LI */
li = LI(ctx->opcode);
li = (li ^ 0x02000000) - 0x02000000;
if (likely(AA(ctx->opcode) == 0)) {
target = ctx->cia + li;
} else {
target = li;
}
if (LK(ctx->opcode)) {
gen_setlr(ctx, ctx->base.pc_next);
gen_update_branch_history(ctx, ctx->cia, NULL, BHRB_TYPE_CALL);
} else {
gen_update_branch_history(ctx, ctx->cia, NULL, BHRB_TYPE_OTHER);
}
gen_goto_tb(ctx, 0, target);
ctx->base.is_jmp = DISAS_NORETURN;
}
#define BCOND_IM 0
#define BCOND_LR 1
#define BCOND_CTR 2
#define BCOND_TAR 3
static void gen_bcond(DisasContext *ctx, int type)
{
uint32_t bo = BO(ctx->opcode);
TCGLabel *l1;
TCGv target;
target_long bhrb_type = BHRB_TYPE_OTHER;
if (type == BCOND_LR || type == BCOND_CTR || type == BCOND_TAR) {
target = tcg_temp_new();
if (type == BCOND_CTR) {
tcg_gen_mov_tl(target, cpu_ctr);
} else if (type == BCOND_TAR) {
gen_load_spr(target, SPR_TAR);
} else {
tcg_gen_mov_tl(target, cpu_lr);
}
if (!LK(ctx->opcode)) {
bhrb_type |= BHRB_TYPE_INDIRECT;
}
bhrb_type |= BHRB_TYPE_XL_FORM;
} else {
target = NULL;
}
if (LK(ctx->opcode)) {
gen_setlr(ctx, ctx->base.pc_next);
bhrb_type |= BHRB_TYPE_CALL;
}
l1 = gen_new_label();
if ((bo & 0x4) == 0) {
/* Decrement and test CTR */
TCGv temp = tcg_temp_new();
if (type == BCOND_CTR) {
/*
* All ISAs up to v3 describe this form of bcctr as invalid but
* some processors, ie. 64-bit server processors compliant with
* arch 2.x, do implement a "test and decrement" logic instead,
* as described in their respective UMs. This logic involves CTR
* to act as both the branch target and a counter, which makes
* it basically useless and thus never used in real code.
*
* This form was hence chosen to trigger extra micro-architectural
* side-effect on real HW needed for the Spectre v2 workaround.
* It is up to guests that implement such workaround, ie. linux, to
* use this form in a way it just triggers the side-effect without
* doing anything else harmful.
*/
if (unlikely(!is_book3s_arch2x(ctx))) {
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
return;
}
if (NARROW_MODE(ctx)) {
tcg_gen_ext32u_tl(temp, cpu_ctr);
} else {
tcg_gen_mov_tl(temp, cpu_ctr);
}
if (bo & 0x2) {
tcg_gen_brcondi_tl(TCG_COND_NE, temp, 0, l1);
} else {
tcg_gen_brcondi_tl(TCG_COND_EQ, temp, 0, l1);
}
tcg_gen_subi_tl(cpu_ctr, cpu_ctr, 1);
} else {
tcg_gen_subi_tl(cpu_ctr, cpu_ctr, 1);
if (NARROW_MODE(ctx)) {
tcg_gen_ext32u_tl(temp, cpu_ctr);
} else {
tcg_gen_mov_tl(temp, cpu_ctr);
}
if (bo & 0x2) {
tcg_gen_brcondi_tl(TCG_COND_NE, temp, 0, l1);
} else {
tcg_gen_brcondi_tl(TCG_COND_EQ, temp, 0, l1);
}
}
bhrb_type |= BHRB_TYPE_COND;
}
if ((bo & 0x10) == 0) {
/* Test CR */
uint32_t bi = BI(ctx->opcode);
uint32_t mask = 0x08 >> (bi & 0x03);
TCGv_i32 temp = tcg_temp_new_i32();
if (bo & 0x8) {
tcg_gen_andi_i32(temp, cpu_crf[bi >> 2], mask);
tcg_gen_brcondi_i32(TCG_COND_EQ, temp, 0, l1);
} else {
tcg_gen_andi_i32(temp, cpu_crf[bi >> 2], mask);
tcg_gen_brcondi_i32(TCG_COND_NE, temp, 0, l1);
}
bhrb_type |= BHRB_TYPE_COND;
}
gen_update_branch_history(ctx, ctx->cia, target, bhrb_type);
if (type == BCOND_IM) {
target_ulong li = (target_long)((int16_t)(BD(ctx->opcode)));
if (likely(AA(ctx->opcode) == 0)) {
gen_goto_tb(ctx, 0, ctx->cia + li);
} else {
gen_goto_tb(ctx, 0, li);
}
} else {
if (NARROW_MODE(ctx)) {
tcg_gen_andi_tl(cpu_nip, target, (uint32_t)~3);
} else {
tcg_gen_andi_tl(cpu_nip, target, ~3);
}
gen_lookup_and_goto_ptr(ctx);
}
if ((bo & 0x14) != 0x14) {
/* fallthrough case */
gen_set_label(l1);
gen_goto_tb(ctx, 1, ctx->base.pc_next);
}
ctx->base.is_jmp = DISAS_NORETURN;
}
static void gen_bc(DisasContext *ctx)
{
gen_bcond(ctx, BCOND_IM);
}
static void gen_bcctr(DisasContext *ctx)
{
gen_bcond(ctx, BCOND_CTR);
}
static void gen_bclr(DisasContext *ctx)
{
gen_bcond(ctx, BCOND_LR);
}
static void gen_bctar(DisasContext *ctx)
{
gen_bcond(ctx, BCOND_TAR);
}
/*** Condition register logical ***/
#define GEN_CRLOGIC(name, tcg_op, opc) \
static void glue(gen_, name)(DisasContext *ctx) \
{ \
uint8_t bitmask; \
int sh; \
TCGv_i32 t0, t1; \
sh = (crbD(ctx->opcode) & 0x03) - (crbA(ctx->opcode) & 0x03); \
t0 = tcg_temp_new_i32(); \
if (sh > 0) \
tcg_gen_shri_i32(t0, cpu_crf[crbA(ctx->opcode) >> 2], sh); \
else if (sh < 0) \
tcg_gen_shli_i32(t0, cpu_crf[crbA(ctx->opcode) >> 2], -sh); \
else \
tcg_gen_mov_i32(t0, cpu_crf[crbA(ctx->opcode) >> 2]); \
t1 = tcg_temp_new_i32(); \
sh = (crbD(ctx->opcode) & 0x03) - (crbB(ctx->opcode) & 0x03); \
if (sh > 0) \
tcg_gen_shri_i32(t1, cpu_crf[crbB(ctx->opcode) >> 2], sh); \
else if (sh < 0) \
tcg_gen_shli_i32(t1, cpu_crf[crbB(ctx->opcode) >> 2], -sh); \
else \
tcg_gen_mov_i32(t1, cpu_crf[crbB(ctx->opcode) >> 2]); \
tcg_op(t0, t0, t1); \
bitmask = 0x08 >> (crbD(ctx->opcode) & 0x03); \
tcg_gen_andi_i32(t0, t0, bitmask); \
tcg_gen_andi_i32(t1, cpu_crf[crbD(ctx->opcode) >> 2], ~bitmask); \
tcg_gen_or_i32(cpu_crf[crbD(ctx->opcode) >> 2], t0, t1); \
}
/* crand */
GEN_CRLOGIC(crand, tcg_gen_and_i32, 0x08);
/* crandc */
GEN_CRLOGIC(crandc, tcg_gen_andc_i32, 0x04);
/* creqv */
GEN_CRLOGIC(creqv, tcg_gen_eqv_i32, 0x09);
/* crnand */
GEN_CRLOGIC(crnand, tcg_gen_nand_i32, 0x07);
/* crnor */
GEN_CRLOGIC(crnor, tcg_gen_nor_i32, 0x01);
/* cror */
GEN_CRLOGIC(cror, tcg_gen_or_i32, 0x0E);
/* crorc */
GEN_CRLOGIC(crorc, tcg_gen_orc_i32, 0x0D);
/* crxor */
GEN_CRLOGIC(crxor, tcg_gen_xor_i32, 0x06);
/* mcrf */
static void gen_mcrf(DisasContext *ctx)
{
tcg_gen_mov_i32(cpu_crf[crfD(ctx->opcode)], cpu_crf[crfS(ctx->opcode)]);
}
/*** System linkage ***/
/* rfi (supervisor only) */
static void gen_rfi(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
/*
* This instruction doesn't exist anymore on 64-bit server
* processors compliant with arch 2.x
*/
if (is_book3s_arch2x(ctx)) {
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
return;
}
/* Restore CPU state */
CHK_SV(ctx);
translator_io_start(&ctx->base);
gen_update_branch_history(ctx, ctx->cia, NULL, BHRB_TYPE_NORECORD);
gen_helper_rfi(tcg_env);
ctx->base.is_jmp = DISAS_EXIT;
#endif
}
#if defined(TARGET_PPC64)
static void gen_rfid(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
/* Restore CPU state */
CHK_SV(ctx);
translator_io_start(&ctx->base);
gen_update_branch_history(ctx, ctx->cia, NULL, BHRB_TYPE_NORECORD);
gen_helper_rfid(tcg_env);
ctx->base.is_jmp = DISAS_EXIT;
#endif
}
#if !defined(CONFIG_USER_ONLY)
static void gen_rfscv(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
/* Restore CPU state */
CHK_SV(ctx);
translator_io_start(&ctx->base);
gen_update_branch_history(ctx, ctx->cia, NULL, BHRB_TYPE_NORECORD);
gen_helper_rfscv(tcg_env);
ctx->base.is_jmp = DISAS_EXIT;
#endif
}
#endif
static void gen_hrfid(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
/* Restore CPU state */
CHK_HV(ctx);
translator_io_start(&ctx->base);
gen_helper_hrfid(tcg_env);
ctx->base.is_jmp = DISAS_EXIT;
#endif
}
#endif
/* sc */
#if defined(CONFIG_USER_ONLY)
#define POWERPC_SYSCALL POWERPC_EXCP_SYSCALL_USER
#else
#define POWERPC_SYSCALL POWERPC_EXCP_SYSCALL
#endif
static void gen_sc(DisasContext *ctx)
{
uint32_t lev;
/*
* LEV is a 7-bit field, but the top 6 bits are treated as a reserved
* field (i.e., ignored). ISA v3.1 changes that to 5 bits, but that is
* for Ultravisor which TCG does not support, so just ignore the top 6.
*/
lev = (ctx->opcode >> 5) & 0x1;
gen_exception_err(ctx, POWERPC_SYSCALL, lev);
}
#if defined(TARGET_PPC64)
#if !defined(CONFIG_USER_ONLY)
static void gen_scv(DisasContext *ctx)
{
uint32_t lev = (ctx->opcode >> 5) & 0x7F;
/* Set the PC back to the faulting instruction. */
gen_update_nip(ctx, ctx->cia);
gen_helper_scv(tcg_env, tcg_constant_i32(lev));
ctx->base.is_jmp = DISAS_NORETURN;
}
#endif
#endif
/*** Trap ***/
/* Check for unconditional traps (always or never) */
static bool check_unconditional_trap(DisasContext *ctx, int to)
{
/* Trap never */
if (to == 0) {
return true;
}
/* Trap always */
if (to == 31) {
gen_exception_err(ctx, POWERPC_EXCP_PROGRAM, POWERPC_EXCP_TRAP);
return true;
}
return false;
}
/*** Processor control ***/
/* mcrxr */
static void gen_mcrxr(DisasContext *ctx)
{
TCGv_i32 t0 = tcg_temp_new_i32();
TCGv_i32 t1 = tcg_temp_new_i32();
TCGv_i32 dst = cpu_crf[crfD(ctx->opcode)];
tcg_gen_trunc_tl_i32(t0, cpu_so);
tcg_gen_trunc_tl_i32(t1, cpu_ov);
tcg_gen_trunc_tl_i32(dst, cpu_ca);
tcg_gen_shli_i32(t0, t0, 3);
tcg_gen_shli_i32(t1, t1, 2);
tcg_gen_shli_i32(dst, dst, 1);
tcg_gen_or_i32(dst, dst, t0);
tcg_gen_or_i32(dst, dst, t1);
tcg_gen_movi_tl(cpu_so, 0);
tcg_gen_movi_tl(cpu_ov, 0);
tcg_gen_movi_tl(cpu_ca, 0);
}
#ifdef TARGET_PPC64
/* mcrxrx */
static void gen_mcrxrx(DisasContext *ctx)
{
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
TCGv_i32 dst = cpu_crf[crfD(ctx->opcode)];
/* copy OV and OV32 */
tcg_gen_shli_tl(t0, cpu_ov, 1);
tcg_gen_or_tl(t0, t0, cpu_ov32);
tcg_gen_shli_tl(t0, t0, 2);
/* copy CA and CA32 */
tcg_gen_shli_tl(t1, cpu_ca, 1);
tcg_gen_or_tl(t1, t1, cpu_ca32);
tcg_gen_or_tl(t0, t0, t1);
tcg_gen_trunc_tl_i32(dst, t0);
}
#endif
/* mfcr mfocrf */
static void gen_mfcr(DisasContext *ctx)
{
uint32_t crm, crn;
if (likely(ctx->opcode & 0x00100000)) {
crm = CRM(ctx->opcode);
if (likely(crm && ((crm & (crm - 1)) == 0))) {
crn = ctz32(crm);
tcg_gen_extu_i32_tl(cpu_gpr[rD(ctx->opcode)], cpu_crf[7 - crn]);
tcg_gen_shli_tl(cpu_gpr[rD(ctx->opcode)],
cpu_gpr[rD(ctx->opcode)], crn * 4);
}
} else {
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_mov_i32(t0, cpu_crf[0]);
tcg_gen_shli_i32(t0, t0, 4);
tcg_gen_or_i32(t0, t0, cpu_crf[1]);
tcg_gen_shli_i32(t0, t0, 4);
tcg_gen_or_i32(t0, t0, cpu_crf[2]);
tcg_gen_shli_i32(t0, t0, 4);
tcg_gen_or_i32(t0, t0, cpu_crf[3]);
tcg_gen_shli_i32(t0, t0, 4);
tcg_gen_or_i32(t0, t0, cpu_crf[4]);
tcg_gen_shli_i32(t0, t0, 4);
tcg_gen_or_i32(t0, t0, cpu_crf[5]);
tcg_gen_shli_i32(t0, t0, 4);
tcg_gen_or_i32(t0, t0, cpu_crf[6]);
tcg_gen_shli_i32(t0, t0, 4);
tcg_gen_or_i32(t0, t0, cpu_crf[7]);
tcg_gen_extu_i32_tl(cpu_gpr[rD(ctx->opcode)], t0);
}
}
/* mfmsr */
static void gen_mfmsr(DisasContext *ctx)
{
CHK_SV(ctx);
tcg_gen_mov_tl(cpu_gpr[rD(ctx->opcode)], cpu_msr);
}
/* mfspr */
static inline void gen_op_mfspr(DisasContext *ctx)
{
void (*read_cb)(DisasContext *ctx, int gprn, int sprn);
uint32_t sprn = SPR(ctx->opcode);
#if defined(CONFIG_USER_ONLY)
read_cb = ctx->spr_cb[sprn].uea_read;
#else
if (ctx->pr) {
read_cb = ctx->spr_cb[sprn].uea_read;
} else if (ctx->hv) {
read_cb = ctx->spr_cb[sprn].hea_read;
} else {
read_cb = ctx->spr_cb[sprn].oea_read;
}
#endif
if (likely(read_cb != NULL)) {
if (likely(read_cb != SPR_NOACCESS)) {
(*read_cb)(ctx, rD(ctx->opcode), sprn);
} else {
/* Privilege exception */
/*
* This is a hack to avoid warnings when running Linux:
* this OS breaks the PowerPC virtualisation model,
* allowing userland application to read the PVR
*/
if (sprn != SPR_PVR) {
qemu_log_mask(LOG_GUEST_ERROR, "Trying to read privileged spr "
"%d (0x%03x) at " TARGET_FMT_lx "\n", sprn, sprn,
ctx->cia);
}
gen_priv_exception(ctx, POWERPC_EXCP_PRIV_REG);
}
} else {
/* ISA 2.07 defines these as no-ops */
if ((ctx->insns_flags2 & PPC2_ISA207S) &&
(sprn >= 808 && sprn <= 811)) {
/* This is a nop */
return;
}
/* Not defined */
qemu_log_mask(LOG_GUEST_ERROR,
"Trying to read invalid spr %d (0x%03x) at "
TARGET_FMT_lx "\n", sprn, sprn, ctx->cia);
/*
* The behaviour depends on MSR:PR and SPR# bit 0x10, it can
* generate a priv, a hv emu or a no-op
*/
if (sprn & 0x10) {
if (ctx->pr) {
gen_priv_exception(ctx, POWERPC_EXCP_PRIV_REG);
}
} else {
if (ctx->pr || sprn == 0 || sprn == 4 || sprn == 5 || sprn == 6) {
gen_hvpriv_exception(ctx, POWERPC_EXCP_PRIV_REG);
}
}
}
}
static void gen_mfspr(DisasContext *ctx)
{
gen_op_mfspr(ctx);
}
/* mftb */
static void gen_mftb(DisasContext *ctx)
{
gen_op_mfspr(ctx);
}
/* mtcrf mtocrf*/
static void gen_mtcrf(DisasContext *ctx)
{
uint32_t crm, crn;
crm = CRM(ctx->opcode);
if (likely((ctx->opcode & 0x00100000))) {
if (crm && ((crm & (crm - 1)) == 0)) {
TCGv_i32 temp = tcg_temp_new_i32();
crn = ctz32(crm);
tcg_gen_trunc_tl_i32(temp, cpu_gpr[rS(ctx->opcode)]);
tcg_gen_shri_i32(temp, temp, crn * 4);
tcg_gen_andi_i32(cpu_crf[7 - crn], temp, 0xf);
}
} else {
TCGv_i32 temp = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(temp, cpu_gpr[rS(ctx->opcode)]);
for (crn = 0 ; crn < 8 ; crn++) {
if (crm & (1 << crn)) {
tcg_gen_shri_i32(cpu_crf[7 - crn], temp, crn * 4);
tcg_gen_andi_i32(cpu_crf[7 - crn], cpu_crf[7 - crn], 0xf);
}
}
}
}
/* mtmsr */
#if defined(TARGET_PPC64)
static void gen_mtmsrd(DisasContext *ctx)
{
if (unlikely(!is_book3s_arch2x(ctx))) {
gen_invalid(ctx);
return;
}
CHK_SV(ctx);
#if !defined(CONFIG_USER_ONLY)
TCGv t0, t1;
target_ulong mask;
t0 = tcg_temp_new();
t1 = tcg_temp_new();
translator_io_start(&ctx->base);
if (ctx->opcode & 0x00010000) {
/* L=1 form only updates EE and RI */
mask = (1ULL << MSR_RI) | (1ULL << MSR_EE);
} else {
/* mtmsrd does not alter HV, S, ME, or LE */
mask = ~((1ULL << MSR_LE) | (1ULL << MSR_ME) | (1ULL << MSR_S) |
(1ULL << MSR_HV));
/*
* XXX: we need to update nip before the store if we enter
* power saving mode, we will exit the loop directly from
* ppc_store_msr
*/
gen_update_nip(ctx, ctx->base.pc_next);
}
tcg_gen_andi_tl(t0, cpu_gpr[rS(ctx->opcode)], mask);
tcg_gen_andi_tl(t1, cpu_msr, ~mask);
tcg_gen_or_tl(t0, t0, t1);
gen_helper_store_msr(tcg_env, t0);
/* Must stop the translation as machine state (may have) changed */
ctx->base.is_jmp = DISAS_EXIT_UPDATE;
#endif /* !defined(CONFIG_USER_ONLY) */
}
#endif /* defined(TARGET_PPC64) */
static void gen_mtmsr(DisasContext *ctx)
{
CHK_SV(ctx);
#if !defined(CONFIG_USER_ONLY)
TCGv t0, t1;
target_ulong mask = 0xFFFFFFFF;
t0 = tcg_temp_new();
t1 = tcg_temp_new();
translator_io_start(&ctx->base);
if (ctx->opcode & 0x00010000) {
/* L=1 form only updates EE and RI */
mask &= (1ULL << MSR_RI) | (1ULL << MSR_EE);
} else {
/* mtmsr does not alter S, ME, or LE */
mask &= ~((1ULL << MSR_LE) | (1ULL << MSR_ME) | (1ULL << MSR_S));
/*
* XXX: we need to update nip before the store if we enter
* power saving mode, we will exit the loop directly from
* ppc_store_msr
*/
gen_update_nip(ctx, ctx->base.pc_next);
}
tcg_gen_andi_tl(t0, cpu_gpr[rS(ctx->opcode)], mask);
tcg_gen_andi_tl(t1, cpu_msr, ~mask);
tcg_gen_or_tl(t0, t0, t1);
gen_helper_store_msr(tcg_env, t0);
/* Must stop the translation as machine state (may have) changed */
ctx->base.is_jmp = DISAS_EXIT_UPDATE;
#endif
}
/* mtspr */
static void gen_mtspr(DisasContext *ctx)
{
void (*write_cb)(DisasContext *ctx, int sprn, int gprn);
uint32_t sprn = SPR(ctx->opcode);
#if defined(CONFIG_USER_ONLY)
write_cb = ctx->spr_cb[sprn].uea_write;
#else
if (ctx->pr) {
write_cb = ctx->spr_cb[sprn].uea_write;
} else if (ctx->hv) {
write_cb = ctx->spr_cb[sprn].hea_write;
} else {
write_cb = ctx->spr_cb[sprn].oea_write;
}
#endif
if (likely(write_cb != NULL)) {
if (likely(write_cb != SPR_NOACCESS)) {
(*write_cb)(ctx, sprn, rS(ctx->opcode));
} else {
/* Privilege exception */
qemu_log_mask(LOG_GUEST_ERROR, "Trying to write privileged spr "
"%d (0x%03x) at " TARGET_FMT_lx "\n", sprn, sprn,
ctx->cia);
gen_priv_exception(ctx, POWERPC_EXCP_PRIV_REG);
}
} else {
/* ISA 2.07 defines these as no-ops */
if ((ctx->insns_flags2 & PPC2_ISA207S) &&
(sprn >= 808 && sprn <= 811)) {
/* This is a nop */
return;
}
/* Not defined */
qemu_log_mask(LOG_GUEST_ERROR,
"Trying to write invalid spr %d (0x%03x) at "
TARGET_FMT_lx "\n", sprn, sprn, ctx->cia);
/*
* The behaviour depends on MSR:PR and SPR# bit 0x10, it can
* generate a priv, a hv emu or a no-op
*/
if (sprn & 0x10) {
if (ctx->pr) {
gen_priv_exception(ctx, POWERPC_EXCP_PRIV_REG);
}
} else {
if (ctx->pr || sprn == 0) {
gen_hvpriv_exception(ctx, POWERPC_EXCP_PRIV_REG);
}
}
}
}
#if defined(TARGET_PPC64)
/* setb */
static void gen_setb(DisasContext *ctx)
{
TCGv_i32 t0 = tcg_temp_new_i32();
TCGv_i32 t8 = tcg_constant_i32(8);
TCGv_i32 tm1 = tcg_constant_i32(-1);
int crf = crfS(ctx->opcode);
tcg_gen_setcondi_i32(TCG_COND_GEU, t0, cpu_crf[crf], 4);
tcg_gen_movcond_i32(TCG_COND_GEU, t0, cpu_crf[crf], t8, tm1, t0);
tcg_gen_ext_i32_tl(cpu_gpr[rD(ctx->opcode)], t0);
}
#endif
/*** Cache management ***/
/* dcbf */
static void gen_dcbf(DisasContext *ctx)
{
/* XXX: specification says this is treated as a load by the MMU */
TCGv t0;
gen_set_access_type(ctx, ACCESS_CACHE);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
gen_qemu_ld8u(ctx, t0, t0);
}
/* dcbfep (external PID dcbf) */
static void gen_dcbfep(DisasContext *ctx)
{
/* XXX: specification says this is treated as a load by the MMU */
TCGv t0;
CHK_SV(ctx);
gen_set_access_type(ctx, ACCESS_CACHE);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
tcg_gen_qemu_ld_tl(t0, t0, PPC_TLB_EPID_LOAD, DEF_MEMOP(MO_UB));
}
/* dcbi (Supervisor only) */
static void gen_dcbi(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv EA, val;
CHK_SV(ctx);
EA = tcg_temp_new();
gen_set_access_type(ctx, ACCESS_CACHE);
gen_addr_reg_index(ctx, EA);
val = tcg_temp_new();
/* XXX: specification says this should be treated as a store by the MMU */
gen_qemu_ld8u(ctx, val, EA);
gen_qemu_st8(ctx, val, EA);
#endif /* defined(CONFIG_USER_ONLY) */
}
/* dcdst */
static void gen_dcbst(DisasContext *ctx)
{
/* XXX: specification say this is treated as a load by the MMU */
TCGv t0;
gen_set_access_type(ctx, ACCESS_CACHE);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
gen_qemu_ld8u(ctx, t0, t0);
}
/* dcbstep (dcbstep External PID version) */
static void gen_dcbstep(DisasContext *ctx)
{
/* XXX: specification say this is treated as a load by the MMU */
TCGv t0;
gen_set_access_type(ctx, ACCESS_CACHE);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
tcg_gen_qemu_ld_tl(t0, t0, PPC_TLB_EPID_LOAD, DEF_MEMOP(MO_UB));
}
/* dcbt */
static void gen_dcbt(DisasContext *ctx)
{
/*
* interpreted as no-op
* XXX: specification say this is treated as a load by the MMU but
* does not generate any exception
*/
}
/* dcbtep */
static void gen_dcbtep(DisasContext *ctx)
{
/*
* interpreted as no-op
* XXX: specification say this is treated as a load by the MMU but
* does not generate any exception
*/
}
/* dcbtst */
static void gen_dcbtst(DisasContext *ctx)
{
/*
* interpreted as no-op
* XXX: specification say this is treated as a load by the MMU but
* does not generate any exception
*/
}
/* dcbtstep */
static void gen_dcbtstep(DisasContext *ctx)
{
/*
* interpreted as no-op
* XXX: specification say this is treated as a load by the MMU but
* does not generate any exception
*/
}
/* dcbtls */
static void gen_dcbtls(DisasContext *ctx)
{
/* Always fails locking the cache */
TCGv t0 = tcg_temp_new();
gen_load_spr(t0, SPR_Exxx_L1CSR0);
tcg_gen_ori_tl(t0, t0, L1CSR0_CUL);
gen_store_spr(SPR_Exxx_L1CSR0, t0);
}
/* dcblc */
static void gen_dcblc(DisasContext *ctx)
{
/*
* interpreted as no-op
*/
}
/* dcbz */
static void gen_dcbz(DisasContext *ctx)
{
TCGv tcgv_addr;
TCGv_i32 tcgv_op;
gen_set_access_type(ctx, ACCESS_CACHE);
tcgv_addr = tcg_temp_new();
tcgv_op = tcg_constant_i32(ctx->opcode & 0x03FF000);
gen_addr_reg_index(ctx, tcgv_addr);
gen_helper_dcbz(tcg_env, tcgv_addr, tcgv_op);
}
/* dcbzep */
static void gen_dcbzep(DisasContext *ctx)
{
TCGv tcgv_addr;
TCGv_i32 tcgv_op;
gen_set_access_type(ctx, ACCESS_CACHE);
tcgv_addr = tcg_temp_new();
tcgv_op = tcg_constant_i32(ctx->opcode & 0x03FF000);
gen_addr_reg_index(ctx, tcgv_addr);
gen_helper_dcbzep(tcg_env, tcgv_addr, tcgv_op);
}
/* dst / dstt */
static void gen_dst(DisasContext *ctx)
{
if (rA(ctx->opcode) == 0) {
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
} else {
/* interpreted as no-op */
}
}
/* dstst /dststt */
static void gen_dstst(DisasContext *ctx)
{
if (rA(ctx->opcode) == 0) {
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
} else {
/* interpreted as no-op */
}
}
/* dss / dssall */
static void gen_dss(DisasContext *ctx)
{
/* interpreted as no-op */
}
/* icbi */
static void gen_icbi(DisasContext *ctx)
{
TCGv t0;
gen_set_access_type(ctx, ACCESS_CACHE);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
gen_helper_icbi(tcg_env, t0);
}
/* icbiep */
static void gen_icbiep(DisasContext *ctx)
{
TCGv t0;
gen_set_access_type(ctx, ACCESS_CACHE);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
gen_helper_icbiep(tcg_env, t0);
}
/* Optional: */
/* dcba */
static void gen_dcba(DisasContext *ctx)
{
/*
* interpreted as no-op
* XXX: specification say this is treated as a store by the MMU
* but does not generate any exception
*/
}
/*** Segment register manipulation ***/
/* Supervisor only: */
/* mfsr */
static void gen_mfsr(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv t0;
CHK_SV(ctx);
t0 = tcg_constant_tl(SR(ctx->opcode));
gen_helper_load_sr(cpu_gpr[rD(ctx->opcode)], tcg_env, t0);
#endif /* defined(CONFIG_USER_ONLY) */
}
/* mfsrin */
static void gen_mfsrin(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv t0;
CHK_SV(ctx);
t0 = tcg_temp_new();
tcg_gen_extract_tl(t0, cpu_gpr[rB(ctx->opcode)], 28, 4);
gen_helper_load_sr(cpu_gpr[rD(ctx->opcode)], tcg_env, t0);
#endif /* defined(CONFIG_USER_ONLY) */
}
/* mtsr */
static void gen_mtsr(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv t0;
CHK_SV(ctx);
t0 = tcg_constant_tl(SR(ctx->opcode));
gen_helper_store_sr(tcg_env, t0, cpu_gpr[rS(ctx->opcode)]);
#endif /* defined(CONFIG_USER_ONLY) */
}
/* mtsrin */
static void gen_mtsrin(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv t0;
CHK_SV(ctx);
t0 = tcg_temp_new();
tcg_gen_extract_tl(t0, cpu_gpr[rB(ctx->opcode)], 28, 4);
gen_helper_store_sr(tcg_env, t0, cpu_gpr[rD(ctx->opcode)]);
#endif /* defined(CONFIG_USER_ONLY) */
}
#if defined(TARGET_PPC64)
/* Specific implementation for PowerPC 64 "bridge" emulation using SLB */
/* mfsr */
static void gen_mfsr_64b(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv t0;
CHK_SV(ctx);
t0 = tcg_constant_tl(SR(ctx->opcode));
gen_helper_load_sr(cpu_gpr[rD(ctx->opcode)], tcg_env, t0);
#endif /* defined(CONFIG_USER_ONLY) */
}
/* mfsrin */
static void gen_mfsrin_64b(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv t0;
CHK_SV(ctx);
t0 = tcg_temp_new();
tcg_gen_extract_tl(t0, cpu_gpr[rB(ctx->opcode)], 28, 4);
gen_helper_load_sr(cpu_gpr[rD(ctx->opcode)], tcg_env, t0);
#endif /* defined(CONFIG_USER_ONLY) */
}
/* mtsr */
static void gen_mtsr_64b(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv t0;
CHK_SV(ctx);
t0 = tcg_constant_tl(SR(ctx->opcode));
gen_helper_store_sr(tcg_env, t0, cpu_gpr[rS(ctx->opcode)]);
#endif /* defined(CONFIG_USER_ONLY) */
}
/* mtsrin */
static void gen_mtsrin_64b(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv t0;
CHK_SV(ctx);
t0 = tcg_temp_new();
tcg_gen_extract_tl(t0, cpu_gpr[rB(ctx->opcode)], 28, 4);
gen_helper_store_sr(tcg_env, t0, cpu_gpr[rS(ctx->opcode)]);
#endif /* defined(CONFIG_USER_ONLY) */
}
#endif /* defined(TARGET_PPC64) */
/*** Lookaside buffer management ***/
/* Optional & supervisor only: */
/* tlbia */
static void gen_tlbia(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
CHK_HV(ctx);
gen_helper_tlbia(tcg_env);
#endif /* defined(CONFIG_USER_ONLY) */
}
/* tlbsync */
static void gen_tlbsync(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
if (ctx->gtse) {
CHK_SV(ctx); /* If gtse is set then tlbsync is supervisor privileged */
} else {
CHK_HV(ctx); /* Else hypervisor privileged */
}
/* BookS does both ptesync and tlbsync make tlbsync a nop for server */
if (ctx->insns_flags & PPC_BOOKE) {
gen_check_tlb_flush(ctx, true);
}
#endif /* defined(CONFIG_USER_ONLY) */
}
/*** External control ***/
/* Optional: */
/* eciwx */
static void gen_eciwx(DisasContext *ctx)
{
TCGv t0;
/* Should check EAR[E] ! */
gen_set_access_type(ctx, ACCESS_EXT);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
tcg_gen_qemu_ld_tl(cpu_gpr[rD(ctx->opcode)], t0, ctx->mem_idx,
DEF_MEMOP(MO_UL | MO_ALIGN));
}
/* ecowx */
static void gen_ecowx(DisasContext *ctx)
{
TCGv t0;
/* Should check EAR[E] ! */
gen_set_access_type(ctx, ACCESS_EXT);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
tcg_gen_qemu_st_tl(cpu_gpr[rD(ctx->opcode)], t0, ctx->mem_idx,
DEF_MEMOP(MO_UL | MO_ALIGN));
}
/* 602 - 603 - G2 TLB management */
/* tlbld */
static void gen_tlbld_6xx(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
CHK_SV(ctx);
gen_helper_6xx_tlbd(tcg_env, cpu_gpr[rB(ctx->opcode)]);
#endif /* defined(CONFIG_USER_ONLY) */
}
/* tlbli */
static void gen_tlbli_6xx(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
CHK_SV(ctx);
gen_helper_6xx_tlbi(tcg_env, cpu_gpr[rB(ctx->opcode)]);
#endif /* defined(CONFIG_USER_ONLY) */
}
/* BookE specific instructions */
/* XXX: not implemented on 440 ? */
static void gen_mfapidi(DisasContext *ctx)
{
/* XXX: TODO */
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
}
/* XXX: not implemented on 440 ? */
static void gen_tlbiva(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv t0;
CHK_SV(ctx);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
gen_helper_tlbiva(tcg_env, cpu_gpr[rB(ctx->opcode)]);
#endif /* defined(CONFIG_USER_ONLY) */
}
/* All 405 MAC instructions are translated here */
static inline void gen_405_mulladd_insn(DisasContext *ctx, int opc2, int opc3,
int ra, int rb, int rt, int Rc)
{
TCGv t0, t1;
t0 = tcg_temp_new();
t1 = tcg_temp_new();
switch (opc3 & 0x0D) {
case 0x05:
/* macchw - macchw. - macchwo - macchwo. */
/* macchws - macchws. - macchwso - macchwso. */
/* nmacchw - nmacchw. - nmacchwo - nmacchwo. */
/* nmacchws - nmacchws. - nmacchwso - nmacchwso. */
/* mulchw - mulchw. */
tcg_gen_ext16s_tl(t0, cpu_gpr[ra]);
tcg_gen_sari_tl(t1, cpu_gpr[rb], 16);
tcg_gen_ext16s_tl(t1, t1);
break;
case 0x04:
/* macchwu - macchwu. - macchwuo - macchwuo. */
/* macchwsu - macchwsu. - macchwsuo - macchwsuo. */
/* mulchwu - mulchwu. */
tcg_gen_ext16u_tl(t0, cpu_gpr[ra]);
tcg_gen_shri_tl(t1, cpu_gpr[rb], 16);
tcg_gen_ext16u_tl(t1, t1);
break;
case 0x01:
/* machhw - machhw. - machhwo - machhwo. */
/* machhws - machhws. - machhwso - machhwso. */
/* nmachhw - nmachhw. - nmachhwo - nmachhwo. */
/* nmachhws - nmachhws. - nmachhwso - nmachhwso. */
/* mulhhw - mulhhw. */
tcg_gen_sari_tl(t0, cpu_gpr[ra], 16);
tcg_gen_ext16s_tl(t0, t0);
tcg_gen_sari_tl(t1, cpu_gpr[rb], 16);
tcg_gen_ext16s_tl(t1, t1);
break;
case 0x00:
/* machhwu - machhwu. - machhwuo - machhwuo. */
/* machhwsu - machhwsu. - machhwsuo - machhwsuo. */
/* mulhhwu - mulhhwu. */
tcg_gen_shri_tl(t0, cpu_gpr[ra], 16);
tcg_gen_ext16u_tl(t0, t0);
tcg_gen_shri_tl(t1, cpu_gpr[rb], 16);
tcg_gen_ext16u_tl(t1, t1);
break;
case 0x0D:
/* maclhw - maclhw. - maclhwo - maclhwo. */
/* maclhws - maclhws. - maclhwso - maclhwso. */
/* nmaclhw - nmaclhw. - nmaclhwo - nmaclhwo. */
/* nmaclhws - nmaclhws. - nmaclhwso - nmaclhwso. */
/* mullhw - mullhw. */
tcg_gen_ext16s_tl(t0, cpu_gpr[ra]);
tcg_gen_ext16s_tl(t1, cpu_gpr[rb]);
break;
case 0x0C:
/* maclhwu - maclhwu. - maclhwuo - maclhwuo. */
/* maclhwsu - maclhwsu. - maclhwsuo - maclhwsuo. */
/* mullhwu - mullhwu. */
tcg_gen_ext16u_tl(t0, cpu_gpr[ra]);
tcg_gen_ext16u_tl(t1, cpu_gpr[rb]);
break;
}
if (opc2 & 0x04) {
/* (n)multiply-and-accumulate (0x0C / 0x0E) */
tcg_gen_mul_tl(t1, t0, t1);
if (opc2 & 0x02) {
/* nmultiply-and-accumulate (0x0E) */
tcg_gen_sub_tl(t0, cpu_gpr[rt], t1);
} else {
/* multiply-and-accumulate (0x0C) */
tcg_gen_add_tl(t0, cpu_gpr[rt], t1);
}
if (opc3 & 0x12) {
/* Check overflow and/or saturate */
TCGLabel *l1 = gen_new_label();
if (opc3 & 0x10) {
/* Start with XER OV disabled, the most likely case */
tcg_gen_movi_tl(cpu_ov, 0);
}
if (opc3 & 0x01) {
/* Signed */
tcg_gen_xor_tl(t1, cpu_gpr[rt], t1);
tcg_gen_brcondi_tl(TCG_COND_GE, t1, 0, l1);
tcg_gen_xor_tl(t1, cpu_gpr[rt], t0);
tcg_gen_brcondi_tl(TCG_COND_LT, t1, 0, l1);
if (opc3 & 0x02) {
/* Saturate */
tcg_gen_sari_tl(t0, cpu_gpr[rt], 31);
tcg_gen_xori_tl(t0, t0, 0x7fffffff);
}
} else {
/* Unsigned */
tcg_gen_brcond_tl(TCG_COND_GEU, t0, t1, l1);
if (opc3 & 0x02) {
/* Saturate */
tcg_gen_movi_tl(t0, UINT32_MAX);
}
}
if (opc3 & 0x10) {
/* Check overflow */
tcg_gen_movi_tl(cpu_ov, 1);
tcg_gen_movi_tl(cpu_so, 1);
}
gen_set_label(l1);
tcg_gen_mov_tl(cpu_gpr[rt], t0);
}
} else {
tcg_gen_mul_tl(cpu_gpr[rt], t0, t1);
}
if (unlikely(Rc) != 0) {
/* Update Rc0 */
gen_set_Rc0(ctx, cpu_gpr[rt]);
}
}
#define GEN_MAC_HANDLER(name, opc2, opc3) \
static void glue(gen_, name)(DisasContext *ctx) \
{ \
gen_405_mulladd_insn(ctx, opc2, opc3, rA(ctx->opcode), rB(ctx->opcode), \
rD(ctx->opcode), Rc(ctx->opcode)); \
}
/* macchw - macchw. */
GEN_MAC_HANDLER(macchw, 0x0C, 0x05);
/* macchwo - macchwo. */
GEN_MAC_HANDLER(macchwo, 0x0C, 0x15);
/* macchws - macchws. */
GEN_MAC_HANDLER(macchws, 0x0C, 0x07);
/* macchwso - macchwso. */
GEN_MAC_HANDLER(macchwso, 0x0C, 0x17);
/* macchwsu - macchwsu. */
GEN_MAC_HANDLER(macchwsu, 0x0C, 0x06);
/* macchwsuo - macchwsuo. */
GEN_MAC_HANDLER(macchwsuo, 0x0C, 0x16);
/* macchwu - macchwu. */
GEN_MAC_HANDLER(macchwu, 0x0C, 0x04);
/* macchwuo - macchwuo. */
GEN_MAC_HANDLER(macchwuo, 0x0C, 0x14);
/* machhw - machhw. */
GEN_MAC_HANDLER(machhw, 0x0C, 0x01);
/* machhwo - machhwo. */
GEN_MAC_HANDLER(machhwo, 0x0C, 0x11);
/* machhws - machhws. */
GEN_MAC_HANDLER(machhws, 0x0C, 0x03);
/* machhwso - machhwso. */
GEN_MAC_HANDLER(machhwso, 0x0C, 0x13);
/* machhwsu - machhwsu. */
GEN_MAC_HANDLER(machhwsu, 0x0C, 0x02);
/* machhwsuo - machhwsuo. */
GEN_MAC_HANDLER(machhwsuo, 0x0C, 0x12);
/* machhwu - machhwu. */
GEN_MAC_HANDLER(machhwu, 0x0C, 0x00);
/* machhwuo - machhwuo. */
GEN_MAC_HANDLER(machhwuo, 0x0C, 0x10);
/* maclhw - maclhw. */
GEN_MAC_HANDLER(maclhw, 0x0C, 0x0D);
/* maclhwo - maclhwo. */
GEN_MAC_HANDLER(maclhwo, 0x0C, 0x1D);
/* maclhws - maclhws. */
GEN_MAC_HANDLER(maclhws, 0x0C, 0x0F);
/* maclhwso - maclhwso. */
GEN_MAC_HANDLER(maclhwso, 0x0C, 0x1F);
/* maclhwu - maclhwu. */
GEN_MAC_HANDLER(maclhwu, 0x0C, 0x0C);
/* maclhwuo - maclhwuo. */
GEN_MAC_HANDLER(maclhwuo, 0x0C, 0x1C);
/* maclhwsu - maclhwsu. */
GEN_MAC_HANDLER(maclhwsu, 0x0C, 0x0E);
/* maclhwsuo - maclhwsuo. */
GEN_MAC_HANDLER(maclhwsuo, 0x0C, 0x1E);
/* nmacchw - nmacchw. */
GEN_MAC_HANDLER(nmacchw, 0x0E, 0x05);
/* nmacchwo - nmacchwo. */
GEN_MAC_HANDLER(nmacchwo, 0x0E, 0x15);
/* nmacchws - nmacchws. */
GEN_MAC_HANDLER(nmacchws, 0x0E, 0x07);
/* nmacchwso - nmacchwso. */
GEN_MAC_HANDLER(nmacchwso, 0x0E, 0x17);
/* nmachhw - nmachhw. */
GEN_MAC_HANDLER(nmachhw, 0x0E, 0x01);
/* nmachhwo - nmachhwo. */
GEN_MAC_HANDLER(nmachhwo, 0x0E, 0x11);
/* nmachhws - nmachhws. */
GEN_MAC_HANDLER(nmachhws, 0x0E, 0x03);
/* nmachhwso - nmachhwso. */
GEN_MAC_HANDLER(nmachhwso, 0x0E, 0x13);
/* nmaclhw - nmaclhw. */
GEN_MAC_HANDLER(nmaclhw, 0x0E, 0x0D);
/* nmaclhwo - nmaclhwo. */
GEN_MAC_HANDLER(nmaclhwo, 0x0E, 0x1D);
/* nmaclhws - nmaclhws. */
GEN_MAC_HANDLER(nmaclhws, 0x0E, 0x0F);
/* nmaclhwso - nmaclhwso. */
GEN_MAC_HANDLER(nmaclhwso, 0x0E, 0x1F);
/* mulchw - mulchw. */
GEN_MAC_HANDLER(mulchw, 0x08, 0x05);
/* mulchwu - mulchwu. */
GEN_MAC_HANDLER(mulchwu, 0x08, 0x04);
/* mulhhw - mulhhw. */
GEN_MAC_HANDLER(mulhhw, 0x08, 0x01);
/* mulhhwu - mulhhwu. */
GEN_MAC_HANDLER(mulhhwu, 0x08, 0x00);
/* mullhw - mullhw. */
GEN_MAC_HANDLER(mullhw, 0x08, 0x0D);
/* mullhwu - mullhwu. */
GEN_MAC_HANDLER(mullhwu, 0x08, 0x0C);
/* mfdcr */
static void gen_mfdcr(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv dcrn;
CHK_SV(ctx);
dcrn = tcg_constant_tl(SPR(ctx->opcode));
gen_helper_load_dcr(cpu_gpr[rD(ctx->opcode)], tcg_env, dcrn);
#endif /* defined(CONFIG_USER_ONLY) */
}
/* mtdcr */
static void gen_mtdcr(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv dcrn;
CHK_SV(ctx);
dcrn = tcg_constant_tl(SPR(ctx->opcode));
gen_helper_store_dcr(tcg_env, dcrn, cpu_gpr[rS(ctx->opcode)]);
#endif /* defined(CONFIG_USER_ONLY) */
}
/* mfdcrx */
/* XXX: not implemented on 440 ? */
static void gen_mfdcrx(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
CHK_SV(ctx);
gen_helper_load_dcr(cpu_gpr[rD(ctx->opcode)], tcg_env,
cpu_gpr[rA(ctx->opcode)]);
/* Note: Rc update flag set leads to undefined state of Rc0 */
#endif /* defined(CONFIG_USER_ONLY) */
}
/* mtdcrx */
/* XXX: not implemented on 440 ? */
static void gen_mtdcrx(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
CHK_SV(ctx);
gen_helper_store_dcr(tcg_env, cpu_gpr[rA(ctx->opcode)],
cpu_gpr[rS(ctx->opcode)]);
/* Note: Rc update flag set leads to undefined state of Rc0 */
#endif /* defined(CONFIG_USER_ONLY) */
}
/* dccci */
static void gen_dccci(DisasContext *ctx)
{
CHK_SV(ctx);
/* interpreted as no-op */
}
/* dcread */
static void gen_dcread(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv EA, val;
CHK_SV(ctx);
gen_set_access_type(ctx, ACCESS_CACHE);
EA = tcg_temp_new();
gen_addr_reg_index(ctx, EA);
val = tcg_temp_new();
gen_qemu_ld32u(ctx, val, EA);
tcg_gen_mov_tl(cpu_gpr[rD(ctx->opcode)], EA);
#endif /* defined(CONFIG_USER_ONLY) */
}
/* icbt */
static void gen_icbt_40x(DisasContext *ctx)
{
/*
* interpreted as no-op
* XXX: specification say this is treated as a load by the MMU but
* does not generate any exception
*/
}
/* iccci */
static void gen_iccci(DisasContext *ctx)
{
CHK_SV(ctx);
/* interpreted as no-op */
}
/* icread */
static void gen_icread(DisasContext *ctx)
{
CHK_SV(ctx);
/* interpreted as no-op */
}
/* rfci (supervisor only) */
static void gen_rfci_40x(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
CHK_SV(ctx);
/* Restore CPU state */
gen_helper_40x_rfci(tcg_env);
ctx->base.is_jmp = DISAS_EXIT;
#endif /* defined(CONFIG_USER_ONLY) */
}
static void gen_rfci(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
CHK_SV(ctx);
/* Restore CPU state */
gen_helper_rfci(tcg_env);
ctx->base.is_jmp = DISAS_EXIT;
#endif /* defined(CONFIG_USER_ONLY) */
}
/* BookE specific */
/* XXX: not implemented on 440 ? */
static void gen_rfdi(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
CHK_SV(ctx);
/* Restore CPU state */
gen_helper_rfdi(tcg_env);
ctx->base.is_jmp = DISAS_EXIT;
#endif /* defined(CONFIG_USER_ONLY) */
}
/* XXX: not implemented on 440 ? */
static void gen_rfmci(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
CHK_SV(ctx);
/* Restore CPU state */
gen_helper_rfmci(tcg_env);
ctx->base.is_jmp = DISAS_EXIT;
#endif /* defined(CONFIG_USER_ONLY) */
}
/* TLB management - PowerPC 405 implementation */
/* tlbre */
static void gen_tlbre_40x(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
CHK_SV(ctx);
switch (rB(ctx->opcode)) {
case 0:
gen_helper_4xx_tlbre_hi(cpu_gpr[rD(ctx->opcode)], tcg_env,
cpu_gpr[rA(ctx->opcode)]);
break;
case 1:
gen_helper_4xx_tlbre_lo(cpu_gpr[rD(ctx->opcode)], tcg_env,
cpu_gpr[rA(ctx->opcode)]);
break;
default:
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
break;
}
#endif /* defined(CONFIG_USER_ONLY) */
}
/* tlbsx - tlbsx. */
static void gen_tlbsx_40x(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv t0;
CHK_SV(ctx);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
gen_helper_4xx_tlbsx(cpu_gpr[rD(ctx->opcode)], tcg_env, t0);
if (Rc(ctx->opcode)) {
TCGLabel *l1 = gen_new_label();
tcg_gen_trunc_tl_i32(cpu_crf[0], cpu_so);
tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_gpr[rD(ctx->opcode)], -1, l1);
tcg_gen_ori_i32(cpu_crf[0], cpu_crf[0], 0x02);
gen_set_label(l1);
}
#endif /* defined(CONFIG_USER_ONLY) */
}
/* tlbwe */
static void gen_tlbwe_40x(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
CHK_SV(ctx);
switch (rB(ctx->opcode)) {
case 0:
gen_helper_4xx_tlbwe_hi(tcg_env, cpu_gpr[rA(ctx->opcode)],
cpu_gpr[rS(ctx->opcode)]);
break;
case 1:
gen_helper_4xx_tlbwe_lo(tcg_env, cpu_gpr[rA(ctx->opcode)],
cpu_gpr[rS(ctx->opcode)]);
break;
default:
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
break;
}
#endif /* defined(CONFIG_USER_ONLY) */
}
/* TLB management - PowerPC 440 implementation */
/* tlbre */
static void gen_tlbre_440(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
CHK_SV(ctx);
switch (rB(ctx->opcode)) {
case 0:
case 1:
case 2:
{
TCGv_i32 t0 = tcg_constant_i32(rB(ctx->opcode));
gen_helper_440_tlbre(cpu_gpr[rD(ctx->opcode)], tcg_env,
t0, cpu_gpr[rA(ctx->opcode)]);
}
break;
default:
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
break;
}
#endif /* defined(CONFIG_USER_ONLY) */
}
/* tlbsx - tlbsx. */
static void gen_tlbsx_440(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv t0;
CHK_SV(ctx);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
gen_helper_440_tlbsx(cpu_gpr[rD(ctx->opcode)], tcg_env, t0);
if (Rc(ctx->opcode)) {
TCGLabel *l1 = gen_new_label();
tcg_gen_trunc_tl_i32(cpu_crf[0], cpu_so);
tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_gpr[rD(ctx->opcode)], -1, l1);
tcg_gen_ori_i32(cpu_crf[0], cpu_crf[0], 0x02);
gen_set_label(l1);
}
#endif /* defined(CONFIG_USER_ONLY) */
}
/* tlbwe */
static void gen_tlbwe_440(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
CHK_SV(ctx);
switch (rB(ctx->opcode)) {
case 0:
case 1:
case 2:
{
TCGv_i32 t0 = tcg_constant_i32(rB(ctx->opcode));
gen_helper_440_tlbwe(tcg_env, t0, cpu_gpr[rA(ctx->opcode)],
cpu_gpr[rS(ctx->opcode)]);
}
break;
default:
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
break;
}
#endif /* defined(CONFIG_USER_ONLY) */
}
/* TLB management - PowerPC BookE 2.06 implementation */
/* tlbre */
static void gen_tlbre_booke206(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
CHK_SV(ctx);
gen_helper_booke206_tlbre(tcg_env);
#endif /* defined(CONFIG_USER_ONLY) */
}
/* tlbsx - tlbsx. */
static void gen_tlbsx_booke206(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv t0;
CHK_SV(ctx);
if (rA(ctx->opcode)) {
t0 = tcg_temp_new();
tcg_gen_add_tl(t0, cpu_gpr[rA(ctx->opcode)], cpu_gpr[rB(ctx->opcode)]);
} else {
t0 = cpu_gpr[rB(ctx->opcode)];
}
gen_helper_booke206_tlbsx(tcg_env, t0);
#endif /* defined(CONFIG_USER_ONLY) */
}
/* tlbwe */
static void gen_tlbwe_booke206(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
CHK_SV(ctx);
gen_helper_booke206_tlbwe(tcg_env);
#endif /* defined(CONFIG_USER_ONLY) */
}
static void gen_tlbivax_booke206(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv t0;
CHK_SV(ctx);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
gen_helper_booke206_tlbivax(tcg_env, t0);
#endif /* defined(CONFIG_USER_ONLY) */
}
static void gen_tlbilx_booke206(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv t0;
CHK_SV(ctx);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
switch ((ctx->opcode >> 21) & 0x3) {
case 0:
gen_helper_booke206_tlbilx0(tcg_env, t0);
break;
case 1:
gen_helper_booke206_tlbilx1(tcg_env, t0);
break;
case 3:
gen_helper_booke206_tlbilx3(tcg_env, t0);
break;
default:
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
break;
}
#endif /* defined(CONFIG_USER_ONLY) */
}
/* wrtee */
static void gen_wrtee(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
TCGv t0;
CHK_SV(ctx);
t0 = tcg_temp_new();
tcg_gen_andi_tl(t0, cpu_gpr[rD(ctx->opcode)], (1 << MSR_EE));
tcg_gen_andi_tl(cpu_msr, cpu_msr, ~(1 << MSR_EE));
tcg_gen_or_tl(cpu_msr, cpu_msr, t0);
gen_ppc_maybe_interrupt(ctx);
/*
* Stop translation to have a chance to raise an exception if we
* just set msr_ee to 1
*/
ctx->base.is_jmp = DISAS_EXIT_UPDATE;
#endif /* defined(CONFIG_USER_ONLY) */
}
/* wrteei */
static void gen_wrteei(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
GEN_PRIV(ctx);
#else
CHK_SV(ctx);
if (ctx->opcode & 0x00008000) {
tcg_gen_ori_tl(cpu_msr, cpu_msr, (1 << MSR_EE));
gen_ppc_maybe_interrupt(ctx);
/* Stop translation to have a chance to raise an exception */
ctx->base.is_jmp = DISAS_EXIT_UPDATE;
} else {
tcg_gen_andi_tl(cpu_msr, cpu_msr, ~(1 << MSR_EE));
}
#endif /* defined(CONFIG_USER_ONLY) */
}
/* PowerPC 440 specific instructions */
/* dlmzb */
static void gen_dlmzb(DisasContext *ctx)
{
TCGv_i32 t0 = tcg_constant_i32(Rc(ctx->opcode));
gen_helper_dlmzb(cpu_gpr[rA(ctx->opcode)], tcg_env,
cpu_gpr[rS(ctx->opcode)], cpu_gpr[rB(ctx->opcode)], t0);
}
/* icbt */
static void gen_icbt_440(DisasContext *ctx)
{
/*
* interpreted as no-op
* XXX: specification say this is treated as a load by the MMU but
* does not generate any exception
*/
}
static void gen_tbegin(DisasContext *ctx)
{
if (unlikely(!ctx->tm_enabled)) {
gen_exception_err(ctx, POWERPC_EXCP_FU, FSCR_IC_TM);
return;
}
gen_helper_tbegin(tcg_env);
}
#define GEN_TM_NOOP(name) \
static inline void gen_##name(DisasContext *ctx) \
{ \
if (unlikely(!ctx->tm_enabled)) { \
gen_exception_err(ctx, POWERPC_EXCP_FU, FSCR_IC_TM); \
return; \
} \
/* \
* Because tbegin always fails in QEMU, these user \
* space instructions all have a simple implementation: \
* \
* CR[0] = 0b0 || MSR[TS] || 0b0 \
* = 0b0 || 0b00 || 0b0 \
*/ \
tcg_gen_movi_i32(cpu_crf[0], 0); \
}
GEN_TM_NOOP(tend);
GEN_TM_NOOP(tabort);
GEN_TM_NOOP(tabortwc);
GEN_TM_NOOP(tabortwci);
GEN_TM_NOOP(tabortdc);
GEN_TM_NOOP(tabortdci);
GEN_TM_NOOP(tsr);
static inline void gen_cp_abort(DisasContext *ctx)
{
/* Do Nothing */
}
#define GEN_CP_PASTE_NOOP(name) \
static inline void gen_##name(DisasContext *ctx) \
{ \
/* \
* Generate invalid exception until we have an \
* implementation of the copy paste facility \
*/ \
gen_invalid(ctx); \
}
GEN_CP_PASTE_NOOP(copy)
GEN_CP_PASTE_NOOP(paste)
static void gen_tcheck(DisasContext *ctx)
{
if (unlikely(!ctx->tm_enabled)) {
gen_exception_err(ctx, POWERPC_EXCP_FU, FSCR_IC_TM);
return;
}
/*
* Because tbegin always fails, the tcheck implementation is
* simple:
*
* CR[CRF] = TDOOMED || MSR[TS] || 0b0
* = 0b1 || 0b00 || 0b0
*/
tcg_gen_movi_i32(cpu_crf[crfD(ctx->opcode)], 0x8);
}
#if defined(CONFIG_USER_ONLY)
#define GEN_TM_PRIV_NOOP(name) \
static inline void gen_##name(DisasContext *ctx) \
{ \
gen_priv_opc(ctx); \
}
#else
#define GEN_TM_PRIV_NOOP(name) \
static inline void gen_##name(DisasContext *ctx) \
{ \
CHK_SV(ctx); \
if (unlikely(!ctx->tm_enabled)) { \
gen_exception_err(ctx, POWERPC_EXCP_FU, FSCR_IC_TM); \
return; \
} \
/* \
* Because tbegin always fails, the implementation is \
* simple: \
* \
* CR[0] = 0b0 || MSR[TS] || 0b0 \
* = 0b0 || 0b00 | 0b0 \
*/ \
tcg_gen_movi_i32(cpu_crf[0], 0); \
}
#endif
GEN_TM_PRIV_NOOP(treclaim);
GEN_TM_PRIV_NOOP(trechkpt);
static inline void get_fpr(TCGv_i64 dst, int regno)
{
tcg_gen_ld_i64(dst, tcg_env, fpr_offset(regno));
}
static inline void set_fpr(int regno, TCGv_i64 src)
{
tcg_gen_st_i64(src, tcg_env, fpr_offset(regno));
/*
* Before PowerISA v3.1 the result of doubleword 1 of the VSR
* corresponding to the target FPR was undefined. However,
* most (if not all) real hardware were setting the result to 0.
* Starting at ISA v3.1, the result for doubleword 1 is now defined
* to be 0.
*/
tcg_gen_st_i64(tcg_constant_i64(0), tcg_env, vsr64_offset(regno, false));
}
static inline void get_avr64(TCGv_i64 dst, int regno, bool high)
{
tcg_gen_ld_i64(dst, tcg_env, avr64_offset(regno, high));
}
static inline void set_avr64(int regno, TCGv_i64 src, bool high)
{
tcg_gen_st_i64(src, tcg_env, avr64_offset(regno, high));
}
/*
* Helpers for decodetree used by !function for decoding arguments.
*/
static int times_2(DisasContext *ctx, int x)
{
return x * 2;
}
static int times_4(DisasContext *ctx, int x)
{
return x * 4;
}
static int times_16(DisasContext *ctx, int x)
{
return x * 16;
}
static int64_t dw_compose_ea(DisasContext *ctx, int x)
{
return deposit64(0xfffffffffffffe00, 3, 6, x);
}
/*
* Helpers for trans_* functions to check for specific insns flags.
* Use token pasting to ensure that we use the proper flag with the
* proper variable.
*/
#define REQUIRE_INSNS_FLAGS(CTX, NAME) \
do { \
if (((CTX)->insns_flags & PPC_##NAME) == 0) { \
return false; \
} \
} while (0)
#define REQUIRE_INSNS_FLAGS2(CTX, NAME) \
do { \
if (((CTX)->insns_flags2 & PPC2_##NAME) == 0) { \
return false; \
} \
} while (0)
/* Then special-case the check for 64-bit so that we elide code for ppc32. */
#if TARGET_LONG_BITS == 32
# define REQUIRE_64BIT(CTX) return false
#else
# define REQUIRE_64BIT(CTX) REQUIRE_INSNS_FLAGS(CTX, 64B)
#endif
#define REQUIRE_VECTOR(CTX) \
do { \
if (unlikely(!(CTX)->altivec_enabled)) { \
gen_exception((CTX), POWERPC_EXCP_VPU); \
return true; \
} \
} while (0)
#define REQUIRE_VSX(CTX) \
do { \
if (unlikely(!(CTX)->vsx_enabled)) { \
gen_exception((CTX), POWERPC_EXCP_VSXU); \
return true; \
} \
} while (0)
#define REQUIRE_FPU(ctx) \
do { \
if (unlikely(!(ctx)->fpu_enabled)) { \
gen_exception((ctx), POWERPC_EXCP_FPU); \
return true; \
} \
} while (0)
#if !defined(CONFIG_USER_ONLY)
#define REQUIRE_SV(CTX) \
do { \
if (unlikely((CTX)->pr)) { \
gen_priv_opc(CTX); \
return true; \
} \
} while (0)
#define REQUIRE_HV(CTX) \
do { \
if (unlikely((CTX)->pr || !(CTX)->hv)) { \
gen_priv_opc(CTX); \
return true; \
} \
} while (0)
#else
#define REQUIRE_SV(CTX) do { gen_priv_opc(CTX); return true; } while (0)
#define REQUIRE_HV(CTX) do { gen_priv_opc(CTX); return true; } while (0)
#endif
/*
* Helpers for implementing sets of trans_* functions.
* Defer the implementation of NAME to FUNC, with optional extra arguments.
*/
#define TRANS(NAME, FUNC, ...) \
static bool trans_##NAME(DisasContext *ctx, arg_##NAME *a) \
{ return FUNC(ctx, a, __VA_ARGS__); }
#define TRANS_FLAGS(FLAGS, NAME, FUNC, ...) \
static bool trans_##NAME(DisasContext *ctx, arg_##NAME *a) \
{ \
REQUIRE_INSNS_FLAGS(ctx, FLAGS); \
return FUNC(ctx, a, __VA_ARGS__); \
}
#define TRANS_FLAGS2(FLAGS2, NAME, FUNC, ...) \
static bool trans_##NAME(DisasContext *ctx, arg_##NAME *a) \
{ \
REQUIRE_INSNS_FLAGS2(ctx, FLAGS2); \
return FUNC(ctx, a, __VA_ARGS__); \
}
#define TRANS64(NAME, FUNC, ...) \
static bool trans_##NAME(DisasContext *ctx, arg_##NAME *a) \
{ REQUIRE_64BIT(ctx); return FUNC(ctx, a, __VA_ARGS__); }
#define TRANS64_FLAGS2(FLAGS2, NAME, FUNC, ...) \
static bool trans_##NAME(DisasContext *ctx, arg_##NAME *a) \
{ \
REQUIRE_64BIT(ctx); \
REQUIRE_INSNS_FLAGS2(ctx, FLAGS2); \
return FUNC(ctx, a, __VA_ARGS__); \
}
/* TODO: More TRANS* helpers for extra insn_flags checks. */
#include "decode-insn32.c.inc"
#include "decode-insn64.c.inc"
#include "power8-pmu-regs.c.inc"
/*
* Incorporate CIA into the constant when R=1.
* Validate that when R=1, RA=0.
*/
static bool resolve_PLS_D(DisasContext *ctx, arg_D *d, arg_PLS_D *a)
{
d->rt = a->rt;
d->ra = a->ra;
d->si = a->si;
if (a->r) {
if (unlikely(a->ra != 0)) {
gen_invalid(ctx);
return false;
}
d->si += ctx->cia;
}
return true;
}
#include "translate/fixedpoint-impl.c.inc"
#include "translate/fp-impl.c.inc"
#include "translate/vmx-impl.c.inc"
#include "translate/vsx-impl.c.inc"
#include "translate/dfp-impl.c.inc"
#include "translate/spe-impl.c.inc"
#include "translate/branch-impl.c.inc"
#include "translate/processor-ctrl-impl.c.inc"
#include "translate/storage-ctrl-impl.c.inc"
#include "translate/misc-impl.c.inc"
#include "translate/bhrb-impl.c.inc"
/* Handles lfdp */
static void gen_dform39(DisasContext *ctx)
{
if ((ctx->opcode & 0x3) == 0) {
if (ctx->insns_flags2 & PPC2_ISA205) {
return gen_lfdp(ctx);
}
}
return gen_invalid(ctx);
}
/* Handles stfdp */
static void gen_dform3D(DisasContext *ctx)
{
if ((ctx->opcode & 3) == 0) { /* DS-FORM */
/* stfdp */
if (ctx->insns_flags2 & PPC2_ISA205) {
return gen_stfdp(ctx);
}
}
return gen_invalid(ctx);
}
#if defined(TARGET_PPC64)
/* brd */
static void gen_brd(DisasContext *ctx)
{
tcg_gen_bswap64_i64(cpu_gpr[rA(ctx->opcode)], cpu_gpr[rS(ctx->opcode)]);
}
/* brw */
static void gen_brw(DisasContext *ctx)
{
tcg_gen_bswap64_i64(cpu_gpr[rA(ctx->opcode)], cpu_gpr[rS(ctx->opcode)]);
tcg_gen_rotli_i64(cpu_gpr[rA(ctx->opcode)], cpu_gpr[rA(ctx->opcode)], 32);
}
/* brh */
static void gen_brh(DisasContext *ctx)
{
TCGv_i64 mask = tcg_constant_i64(0x00ff00ff00ff00ffull);
TCGv_i64 t1 = tcg_temp_new_i64();
TCGv_i64 t2 = tcg_temp_new_i64();
tcg_gen_shri_i64(t1, cpu_gpr[rS(ctx->opcode)], 8);
tcg_gen_and_i64(t2, t1, mask);
tcg_gen_and_i64(t1, cpu_gpr[rS(ctx->opcode)], mask);
tcg_gen_shli_i64(t1, t1, 8);
tcg_gen_or_i64(cpu_gpr[rA(ctx->opcode)], t1, t2);
}
#endif
static opcode_t opcodes[] = {
#if defined(TARGET_PPC64)
GEN_HANDLER_E(brd, 0x1F, 0x1B, 0x05, 0x0000F801, PPC_NONE, PPC2_ISA310),
GEN_HANDLER_E(brw, 0x1F, 0x1B, 0x04, 0x0000F801, PPC_NONE, PPC2_ISA310),
GEN_HANDLER_E(brh, 0x1F, 0x1B, 0x06, 0x0000F801, PPC_NONE, PPC2_ISA310),
#endif
GEN_HANDLER(invalid, 0x00, 0x00, 0x00, 0xFFFFFFFF, PPC_NONE),
GEN_HANDLER_E(copy, 0x1F, 0x06, 0x18, 0x03C00001, PPC_NONE, PPC2_ISA300),
GEN_HANDLER_E(cp_abort, 0x1F, 0x06, 0x1A, 0x03FFF801, PPC_NONE, PPC2_ISA300),
GEN_HANDLER_E(paste, 0x1F, 0x06, 0x1C, 0x03C00000, PPC_NONE, PPC2_ISA300),
GEN_HANDLER(rlwimi, 0x14, 0xFF, 0xFF, 0x00000000, PPC_INTEGER),
GEN_HANDLER(rlwinm, 0x15, 0xFF, 0xFF, 0x00000000, PPC_INTEGER),
GEN_HANDLER(rlwnm, 0x17, 0xFF, 0xFF, 0x00000000, PPC_INTEGER),
GEN_HANDLER(slw, 0x1F, 0x18, 0x00, 0x00000000, PPC_INTEGER),
GEN_HANDLER(sraw, 0x1F, 0x18, 0x18, 0x00000000, PPC_INTEGER),
GEN_HANDLER(srawi, 0x1F, 0x18, 0x19, 0x00000000, PPC_INTEGER),
GEN_HANDLER(srw, 0x1F, 0x18, 0x10, 0x00000000, PPC_INTEGER),
#if defined(TARGET_PPC64)
GEN_HANDLER(sld, 0x1F, 0x1B, 0x00, 0x00000000, PPC_64B),
GEN_HANDLER(srad, 0x1F, 0x1A, 0x18, 0x00000000, PPC_64B),
GEN_HANDLER2(sradi0, "sradi", 0x1F, 0x1A, 0x19, 0x00000000, PPC_64B),
GEN_HANDLER2(sradi1, "sradi", 0x1F, 0x1B, 0x19, 0x00000000, PPC_64B),
GEN_HANDLER(srd, 0x1F, 0x1B, 0x10, 0x00000000, PPC_64B),
GEN_HANDLER2_E(extswsli0, "extswsli", 0x1F, 0x1A, 0x1B, 0x00000000,
PPC_NONE, PPC2_ISA300),
GEN_HANDLER2_E(extswsli1, "extswsli", 0x1F, 0x1B, 0x1B, 0x00000000,
PPC_NONE, PPC2_ISA300),
#endif
/* handles lfdp, lxsd, lxssp */
GEN_HANDLER_E(dform39, 0x39, 0xFF, 0xFF, 0x00000000, PPC_NONE, PPC2_ISA205),
/* handles stfdp, stxsd, stxssp */
GEN_HANDLER_E(dform3D, 0x3D, 0xFF, 0xFF, 0x00000000, PPC_NONE, PPC2_ISA205),
GEN_HANDLER(lmw, 0x2E, 0xFF, 0xFF, 0x00000000, PPC_INTEGER),
GEN_HANDLER(stmw, 0x2F, 0xFF, 0xFF, 0x00000000, PPC_INTEGER),
GEN_HANDLER(lswi, 0x1F, 0x15, 0x12, 0x00000001, PPC_STRING),
GEN_HANDLER(lswx, 0x1F, 0x15, 0x10, 0x00000001, PPC_STRING),
GEN_HANDLER(stswi, 0x1F, 0x15, 0x16, 0x00000001, PPC_STRING),
GEN_HANDLER(stswx, 0x1F, 0x15, 0x14, 0x00000001, PPC_STRING),
GEN_HANDLER(isync, 0x13, 0x16, 0x04, 0x03FFF801, PPC_MEM),
GEN_HANDLER_E(lbarx, 0x1F, 0x14, 0x01, 0, PPC_NONE, PPC2_ATOMIC_ISA206),
GEN_HANDLER_E(lharx, 0x1F, 0x14, 0x03, 0, PPC_NONE, PPC2_ATOMIC_ISA206),
GEN_HANDLER(lwarx, 0x1F, 0x14, 0x00, 0x00000000, PPC_RES),
GEN_HANDLER_E(lwat, 0x1F, 0x06, 0x12, 0x00000001, PPC_NONE, PPC2_ISA300),
GEN_HANDLER_E(stwat, 0x1F, 0x06, 0x16, 0x00000001, PPC_NONE, PPC2_ISA300),
GEN_HANDLER_E(stbcx_, 0x1F, 0x16, 0x15, 0, PPC_NONE, PPC2_ATOMIC_ISA206),
GEN_HANDLER_E(sthcx_, 0x1F, 0x16, 0x16, 0, PPC_NONE, PPC2_ATOMIC_ISA206),
GEN_HANDLER2(stwcx_, "stwcx.", 0x1F, 0x16, 0x04, 0x00000000, PPC_RES),
#if defined(TARGET_PPC64)
GEN_HANDLER_E(ldat, 0x1F, 0x06, 0x13, 0x00000001, PPC_NONE, PPC2_ISA300),
GEN_HANDLER_E(stdat, 0x1F, 0x06, 0x17, 0x00000001, PPC_NONE, PPC2_ISA300),
GEN_HANDLER(ldarx, 0x1F, 0x14, 0x02, 0x00000000, PPC_64B),
GEN_HANDLER_E(lqarx, 0x1F, 0x14, 0x08, 0, PPC_NONE, PPC2_LSQ_ISA207),
GEN_HANDLER2(stdcx_, "stdcx.", 0x1F, 0x16, 0x06, 0x00000000, PPC_64B),
GEN_HANDLER_E(stqcx_, 0x1F, 0x16, 0x05, 0, PPC_NONE, PPC2_LSQ_ISA207),
#endif
/* ISA v3.0 changed the extended opcode from 62 to 30 */
GEN_HANDLER(wait, 0x1F, 0x1E, 0x01, 0x039FF801, PPC_WAIT),
GEN_HANDLER_E(wait, 0x1F, 0x1E, 0x00, 0x039CF801, PPC_NONE, PPC2_ISA300),
GEN_HANDLER(b, 0x12, 0xFF, 0xFF, 0x00000000, PPC_FLOW),
GEN_HANDLER(bc, 0x10, 0xFF, 0xFF, 0x00000000, PPC_FLOW),
GEN_HANDLER(bcctr, 0x13, 0x10, 0x10, 0x00000000, PPC_FLOW),
GEN_HANDLER(bclr, 0x13, 0x10, 0x00, 0x00000000, PPC_FLOW),
GEN_HANDLER_E(bctar, 0x13, 0x10, 0x11, 0x0000E000, PPC_NONE, PPC2_BCTAR_ISA207),
GEN_HANDLER(mcrf, 0x13, 0x00, 0xFF, 0x00000001, PPC_INTEGER),
GEN_HANDLER(rfi, 0x13, 0x12, 0x01, 0x03FF8001, PPC_FLOW),
#if defined(TARGET_PPC64)
GEN_HANDLER(rfid, 0x13, 0x12, 0x00, 0x03FF8001, PPC_64B),
#if !defined(CONFIG_USER_ONLY)
/* Top bit of opc2 corresponds with low bit of LEV, so use two handlers */
GEN_HANDLER_E(scv, 0x11, 0x10, 0xFF, 0x03FFF01E, PPC_NONE, PPC2_ISA300),
GEN_HANDLER_E(scv, 0x11, 0x00, 0xFF, 0x03FFF01E, PPC_NONE, PPC2_ISA300),
GEN_HANDLER_E(rfscv, 0x13, 0x12, 0x02, 0x03FF8001, PPC_NONE, PPC2_ISA300),
#endif
GEN_HANDLER_E(stop, 0x13, 0x12, 0x0b, 0x03FFF801, PPC_NONE, PPC2_ISA300),
GEN_HANDLER_E(doze, 0x13, 0x12, 0x0c, 0x03FFF801, PPC_NONE, PPC2_PM_ISA206),
GEN_HANDLER_E(nap, 0x13, 0x12, 0x0d, 0x03FFF801, PPC_NONE, PPC2_PM_ISA206),
GEN_HANDLER_E(sleep, 0x13, 0x12, 0x0e, 0x03FFF801, PPC_NONE, PPC2_PM_ISA206),
GEN_HANDLER_E(rvwinkle, 0x13, 0x12, 0x0f, 0x03FFF801, PPC_NONE, PPC2_PM_ISA206),
GEN_HANDLER(hrfid, 0x13, 0x12, 0x08, 0x03FF8001, PPC_64H),
#endif
/* Top bit of opc2 corresponds with low bit of LEV, so use two handlers */
GEN_HANDLER(sc, 0x11, 0x11, 0xFF, 0x03FFF01D, PPC_FLOW),
GEN_HANDLER(sc, 0x11, 0x01, 0xFF, 0x03FFF01D, PPC_FLOW),
GEN_HANDLER(mcrxr, 0x1F, 0x00, 0x10, 0x007FF801, PPC_MISC),
GEN_HANDLER(mfcr, 0x1F, 0x13, 0x00, 0x00000801, PPC_MISC),
GEN_HANDLER(mfmsr, 0x1F, 0x13, 0x02, 0x001FF801, PPC_MISC),
GEN_HANDLER(mfspr, 0x1F, 0x13, 0x0A, 0x00000001, PPC_MISC),
GEN_HANDLER(mftb, 0x1F, 0x13, 0x0B, 0x00000001, PPC_MFTB),
GEN_HANDLER(mtcrf, 0x1F, 0x10, 0x04, 0x00000801, PPC_MISC),
#if defined(TARGET_PPC64)
GEN_HANDLER(mtmsrd, 0x1F, 0x12, 0x05, 0x001EF801, PPC_64B),
GEN_HANDLER_E(setb, 0x1F, 0x00, 0x04, 0x0003F801, PPC_NONE, PPC2_ISA300),
GEN_HANDLER_E(mcrxrx, 0x1F, 0x00, 0x12, 0x007FF801, PPC_NONE, PPC2_ISA300),
#endif
GEN_HANDLER(mtmsr, 0x1F, 0x12, 0x04, 0x001EF801, PPC_MISC),
GEN_HANDLER(mtspr, 0x1F, 0x13, 0x0E, 0x00000000, PPC_MISC),
GEN_HANDLER(dcbf, 0x1F, 0x16, 0x02, 0x03C00001, PPC_CACHE),
GEN_HANDLER_E(dcbfep, 0x1F, 0x1F, 0x03, 0x03C00001, PPC_NONE, PPC2_BOOKE206),
GEN_HANDLER(dcbi, 0x1F, 0x16, 0x0E, 0x03E00001, PPC_CACHE),
GEN_HANDLER(dcbst, 0x1F, 0x16, 0x01, 0x03E00001, PPC_CACHE),
GEN_HANDLER_E(dcbstep, 0x1F, 0x1F, 0x01, 0x03E00001, PPC_NONE, PPC2_BOOKE206),
GEN_HANDLER(dcbt, 0x1F, 0x16, 0x08, 0x00000001, PPC_CACHE),
GEN_HANDLER_E(dcbtep, 0x1F, 0x1F, 0x09, 0x00000001, PPC_NONE, PPC2_BOOKE206),
GEN_HANDLER(dcbtst, 0x1F, 0x16, 0x07, 0x00000001, PPC_CACHE),
GEN_HANDLER_E(dcbtstep, 0x1F, 0x1F, 0x07, 0x00000001, PPC_NONE, PPC2_BOOKE206),
GEN_HANDLER_E(dcbtls, 0x1F, 0x06, 0x05, 0x02000001, PPC_BOOKE, PPC2_BOOKE206),
GEN_HANDLER_E(dcblc, 0x1F, 0x06, 0x0c, 0x02000001, PPC_BOOKE, PPC2_BOOKE206),
GEN_HANDLER(dcbz, 0x1F, 0x16, 0x1F, 0x03C00001, PPC_CACHE_DCBZ),
GEN_HANDLER_E(dcbzep, 0x1F, 0x1F, 0x1F, 0x03C00001, PPC_NONE, PPC2_BOOKE206),
GEN_HANDLER(dst, 0x1F, 0x16, 0x0A, 0x01800001, PPC_ALTIVEC),
GEN_HANDLER(dstst, 0x1F, 0x16, 0x0B, 0x01800001, PPC_ALTIVEC),
GEN_HANDLER(dss, 0x1F, 0x16, 0x19, 0x019FF801, PPC_ALTIVEC),
GEN_HANDLER(icbi, 0x1F, 0x16, 0x1E, 0x03E00001, PPC_CACHE_ICBI),
GEN_HANDLER_E(icbiep, 0x1F, 0x1F, 0x1E, 0x03E00001, PPC_NONE, PPC2_BOOKE206),
GEN_HANDLER(dcba, 0x1F, 0x16, 0x17, 0x03E00001, PPC_CACHE_DCBA),
GEN_HANDLER(mfsr, 0x1F, 0x13, 0x12, 0x0010F801, PPC_SEGMENT),
GEN_HANDLER(mfsrin, 0x1F, 0x13, 0x14, 0x001F0001, PPC_SEGMENT),
GEN_HANDLER(mtsr, 0x1F, 0x12, 0x06, 0x0010F801, PPC_SEGMENT),
GEN_HANDLER(mtsrin, 0x1F, 0x12, 0x07, 0x001F0001, PPC_SEGMENT),
#if defined(TARGET_PPC64)
GEN_HANDLER2(mfsr_64b, "mfsr", 0x1F, 0x13, 0x12, 0x0010F801, PPC_SEGMENT_64B),
GEN_HANDLER2(mfsrin_64b, "mfsrin", 0x1F, 0x13, 0x14, 0x001F0001,
PPC_SEGMENT_64B),
GEN_HANDLER2(mtsr_64b, "mtsr", 0x1F, 0x12, 0x06, 0x0010F801, PPC_SEGMENT_64B),
GEN_HANDLER2(mtsrin_64b, "mtsrin", 0x1F, 0x12, 0x07, 0x001F0001,
PPC_SEGMENT_64B),
#endif
GEN_HANDLER(tlbia, 0x1F, 0x12, 0x0B, 0x03FFFC01, PPC_MEM_TLBIA),
/*
* XXX Those instructions will need to be handled differently for
* different ISA versions
*/
GEN_HANDLER(tlbsync, 0x1F, 0x16, 0x11, 0x03FFF801, PPC_MEM_TLBSYNC),
GEN_HANDLER(eciwx, 0x1F, 0x16, 0x0D, 0x00000001, PPC_EXTERN),
GEN_HANDLER(ecowx, 0x1F, 0x16, 0x09, 0x00000001, PPC_EXTERN),
GEN_HANDLER2(tlbld_6xx, "tlbld", 0x1F, 0x12, 0x1E, 0x03FF0001, PPC_6xx_TLB),
GEN_HANDLER2(tlbli_6xx, "tlbli", 0x1F, 0x12, 0x1F, 0x03FF0001, PPC_6xx_TLB),
GEN_HANDLER(mfapidi, 0x1F, 0x13, 0x08, 0x0000F801, PPC_MFAPIDI),
GEN_HANDLER(tlbiva, 0x1F, 0x12, 0x18, 0x03FFF801, PPC_TLBIVA),
GEN_HANDLER(mfdcr, 0x1F, 0x03, 0x0A, 0x00000001, PPC_DCR),
GEN_HANDLER(mtdcr, 0x1F, 0x03, 0x0E, 0x00000001, PPC_DCR),
GEN_HANDLER(mfdcrx, 0x1F, 0x03, 0x08, 0x00000000, PPC_DCRX),
GEN_HANDLER(mtdcrx, 0x1F, 0x03, 0x0C, 0x00000000, PPC_DCRX),
GEN_HANDLER(dccci, 0x1F, 0x06, 0x0E, 0x03E00001, PPC_4xx_COMMON),
GEN_HANDLER(dcread, 0x1F, 0x06, 0x0F, 0x00000001, PPC_4xx_COMMON),
GEN_HANDLER2(icbt_40x, "icbt", 0x1F, 0x06, 0x08, 0x03E00001, PPC_40x_ICBT),
GEN_HANDLER(iccci, 0x1F, 0x06, 0x1E, 0x00000001, PPC_4xx_COMMON),
GEN_HANDLER(icread, 0x1F, 0x06, 0x1F, 0x03E00001, PPC_4xx_COMMON),
GEN_HANDLER2(rfci_40x, "rfci", 0x13, 0x13, 0x01, 0x03FF8001, PPC_40x_EXCP),
GEN_HANDLER_E(rfci, 0x13, 0x13, 0x01, 0x03FF8001, PPC_BOOKE, PPC2_BOOKE206),
GEN_HANDLER(rfdi, 0x13, 0x07, 0x01, 0x03FF8001, PPC_RFDI),
GEN_HANDLER(rfmci, 0x13, 0x06, 0x01, 0x03FF8001, PPC_RFMCI),
GEN_HANDLER2(tlbre_40x, "tlbre", 0x1F, 0x12, 0x1D, 0x00000001, PPC_40x_TLB),
GEN_HANDLER2(tlbsx_40x, "tlbsx", 0x1F, 0x12, 0x1C, 0x00000000, PPC_40x_TLB),
GEN_HANDLER2(tlbwe_40x, "tlbwe", 0x1F, 0x12, 0x1E, 0x00000001, PPC_40x_TLB),
GEN_HANDLER2(tlbre_440, "tlbre", 0x1F, 0x12, 0x1D, 0x00000001, PPC_BOOKE),
GEN_HANDLER2(tlbsx_440, "tlbsx", 0x1F, 0x12, 0x1C, 0x00000000, PPC_BOOKE),
GEN_HANDLER2(tlbwe_440, "tlbwe", 0x1F, 0x12, 0x1E, 0x00000001, PPC_BOOKE),
GEN_HANDLER2_E(tlbre_booke206, "tlbre", 0x1F, 0x12, 0x1D, 0x00000001,
PPC_NONE, PPC2_BOOKE206),
GEN_HANDLER2_E(tlbsx_booke206, "tlbsx", 0x1F, 0x12, 0x1C, 0x00000000,
PPC_NONE, PPC2_BOOKE206),
GEN_HANDLER2_E(tlbwe_booke206, "tlbwe", 0x1F, 0x12, 0x1E, 0x00000001,
PPC_NONE, PPC2_BOOKE206),
GEN_HANDLER2_E(tlbivax_booke206, "tlbivax", 0x1F, 0x12, 0x18, 0x00000001,
PPC_NONE, PPC2_BOOKE206),
GEN_HANDLER2_E(tlbilx_booke206, "tlbilx", 0x1F, 0x12, 0x00, 0x03800001,
PPC_NONE, PPC2_BOOKE206),
GEN_HANDLER(wrtee, 0x1F, 0x03, 0x04, 0x000FFC01, PPC_WRTEE),
GEN_HANDLER(wrteei, 0x1F, 0x03, 0x05, 0x000E7C01, PPC_WRTEE),
GEN_HANDLER(dlmzb, 0x1F, 0x0E, 0x02, 0x00000000, PPC_440_SPEC),
GEN_HANDLER2_E(icbt_440, "icbt", 0x1F, 0x16, 0x00, 0x03E00001,
PPC_BOOKE, PPC2_BOOKE206),
GEN_HANDLER2(icbt_440, "icbt", 0x1F, 0x06, 0x08, 0x03E00001,
PPC_440_SPEC),
GEN_HANDLER(mfvscr, 0x04, 0x2, 0x18, 0x001ff800, PPC_ALTIVEC),
GEN_HANDLER(mtvscr, 0x04, 0x2, 0x19, 0x03ff0000, PPC_ALTIVEC),
#if defined(TARGET_PPC64)
#undef GEN_PPC64_R2
#undef GEN_PPC64_R4
#define GEN_PPC64_R2(name, opc1, opc2) \
GEN_HANDLER2(name##0, stringify(name), opc1, opc2, 0xFF, 0x00000000, PPC_64B),\
GEN_HANDLER2(name##1, stringify(name), opc1, opc2 | 0x10, 0xFF, 0x00000000, \
PPC_64B)
#define GEN_PPC64_R4(name, opc1, opc2) \
GEN_HANDLER2(name##0, stringify(name), opc1, opc2, 0xFF, 0x00000000, PPC_64B),\
GEN_HANDLER2(name##1, stringify(name), opc1, opc2 | 0x01, 0xFF, 0x00000000, \
PPC_64B), \
GEN_HANDLER2(name##2, stringify(name), opc1, opc2 | 0x10, 0xFF, 0x00000000, \
PPC_64B), \
GEN_HANDLER2(name##3, stringify(name), opc1, opc2 | 0x11, 0xFF, 0x00000000, \
PPC_64B)
GEN_PPC64_R4(rldicl, 0x1E, 0x00),
GEN_PPC64_R4(rldicr, 0x1E, 0x02),
GEN_PPC64_R4(rldic, 0x1E, 0x04),
GEN_PPC64_R2(rldcl, 0x1E, 0x08),
GEN_PPC64_R2(rldcr, 0x1E, 0x09),
GEN_PPC64_R4(rldimi, 0x1E, 0x06),
#endif
#undef GEN_LDX_E
#define GEN_LDX_E(name, ldop, opc2, opc3, type, type2, chk) \
GEN_HANDLER_E(name##x, 0x1F, opc2, opc3, 0x00000001, type, type2),
#if defined(TARGET_PPC64)
GEN_LDX_E(ldbr, ld64ur_i64, 0x14, 0x10, PPC_NONE, PPC2_DBRX, CHK_NONE)
/* HV/P7 and later only */
GEN_LDX_HVRM(ldcix, ld64_i64, 0x15, 0x1b, PPC_CILDST)
GEN_LDX_HVRM(lwzcix, ld32u, 0x15, 0x18, PPC_CILDST)
GEN_LDX_HVRM(lhzcix, ld16u, 0x15, 0x19, PPC_CILDST)
GEN_LDX_HVRM(lbzcix, ld8u, 0x15, 0x1a, PPC_CILDST)
#endif
GEN_LDX(lhbr, ld16ur, 0x16, 0x18, PPC_INTEGER)
GEN_LDX(lwbr, ld32ur, 0x16, 0x10, PPC_INTEGER)
/* External PID based load */
#undef GEN_LDEPX
#define GEN_LDEPX(name, ldop, opc2, opc3) \
GEN_HANDLER_E(name##epx, 0x1F, opc2, opc3, \
0x00000001, PPC_NONE, PPC2_BOOKE206),
GEN_LDEPX(lb, DEF_MEMOP(MO_UB), 0x1F, 0x02)
GEN_LDEPX(lh, DEF_MEMOP(MO_UW), 0x1F, 0x08)
GEN_LDEPX(lw, DEF_MEMOP(MO_UL), 0x1F, 0x00)
#if defined(TARGET_PPC64)
GEN_LDEPX(ld, DEF_MEMOP(MO_UQ), 0x1D, 0x00)
#endif
#undef GEN_STX_E
#define GEN_STX_E(name, stop, opc2, opc3, type, type2, chk) \
GEN_HANDLER_E(name##x, 0x1F, opc2, opc3, 0x00000000, type, type2),
#if defined(TARGET_PPC64)
GEN_STX_E(stdbr, st64r_i64, 0x14, 0x14, PPC_NONE, PPC2_DBRX, CHK_NONE)
GEN_STX_HVRM(stdcix, st64_i64, 0x15, 0x1f, PPC_CILDST)
GEN_STX_HVRM(stwcix, st32, 0x15, 0x1c, PPC_CILDST)
GEN_STX_HVRM(sthcix, st16, 0x15, 0x1d, PPC_CILDST)
GEN_STX_HVRM(stbcix, st8, 0x15, 0x1e, PPC_CILDST)
#endif
GEN_STX(sthbr, st16r, 0x16, 0x1C, PPC_INTEGER)
GEN_STX(stwbr, st32r, 0x16, 0x14, PPC_INTEGER)
#undef GEN_STEPX
#define GEN_STEPX(name, ldop, opc2, opc3) \
GEN_HANDLER_E(name##epx, 0x1F, opc2, opc3, \
0x00000001, PPC_NONE, PPC2_BOOKE206),
GEN_STEPX(stb, DEF_MEMOP(MO_UB), 0x1F, 0x06)
GEN_STEPX(sth, DEF_MEMOP(MO_UW), 0x1F, 0x0C)
GEN_STEPX(stw, DEF_MEMOP(MO_UL), 0x1F, 0x04)
#if defined(TARGET_PPC64)
GEN_STEPX(std, DEF_MEMOP(MO_UQ), 0x1D, 0x04)
#endif
#undef GEN_CRLOGIC
#define GEN_CRLOGIC(name, tcg_op, opc) \
GEN_HANDLER(name, 0x13, 0x01, opc, 0x00000001, PPC_INTEGER)
GEN_CRLOGIC(crand, tcg_gen_and_i32, 0x08),
GEN_CRLOGIC(crandc, tcg_gen_andc_i32, 0x04),
GEN_CRLOGIC(creqv, tcg_gen_eqv_i32, 0x09),
GEN_CRLOGIC(crnand, tcg_gen_nand_i32, 0x07),
GEN_CRLOGIC(crnor, tcg_gen_nor_i32, 0x01),
GEN_CRLOGIC(cror, tcg_gen_or_i32, 0x0E),
GEN_CRLOGIC(crorc, tcg_gen_orc_i32, 0x0D),
GEN_CRLOGIC(crxor, tcg_gen_xor_i32, 0x06),
#undef GEN_MAC_HANDLER
#define GEN_MAC_HANDLER(name, opc2, opc3) \
GEN_HANDLER(name, 0x04, opc2, opc3, 0x00000000, PPC_405_MAC)
GEN_MAC_HANDLER(macchw, 0x0C, 0x05),
GEN_MAC_HANDLER(macchwo, 0x0C, 0x15),
GEN_MAC_HANDLER(macchws, 0x0C, 0x07),
GEN_MAC_HANDLER(macchwso, 0x0C, 0x17),
GEN_MAC_HANDLER(macchwsu, 0x0C, 0x06),
GEN_MAC_HANDLER(macchwsuo, 0x0C, 0x16),
GEN_MAC_HANDLER(macchwu, 0x0C, 0x04),
GEN_MAC_HANDLER(macchwuo, 0x0C, 0x14),
GEN_MAC_HANDLER(machhw, 0x0C, 0x01),
GEN_MAC_HANDLER(machhwo, 0x0C, 0x11),
GEN_MAC_HANDLER(machhws, 0x0C, 0x03),
GEN_MAC_HANDLER(machhwso, 0x0C, 0x13),
GEN_MAC_HANDLER(machhwsu, 0x0C, 0x02),
GEN_MAC_HANDLER(machhwsuo, 0x0C, 0x12),
GEN_MAC_HANDLER(machhwu, 0x0C, 0x00),
GEN_MAC_HANDLER(machhwuo, 0x0C, 0x10),
GEN_MAC_HANDLER(maclhw, 0x0C, 0x0D),
GEN_MAC_HANDLER(maclhwo, 0x0C, 0x1D),
GEN_MAC_HANDLER(maclhws, 0x0C, 0x0F),
GEN_MAC_HANDLER(maclhwso, 0x0C, 0x1F),
GEN_MAC_HANDLER(maclhwu, 0x0C, 0x0C),
GEN_MAC_HANDLER(maclhwuo, 0x0C, 0x1C),
GEN_MAC_HANDLER(maclhwsu, 0x0C, 0x0E),
GEN_MAC_HANDLER(maclhwsuo, 0x0C, 0x1E),
GEN_MAC_HANDLER(nmacchw, 0x0E, 0x05),
GEN_MAC_HANDLER(nmacchwo, 0x0E, 0x15),
GEN_MAC_HANDLER(nmacchws, 0x0E, 0x07),
GEN_MAC_HANDLER(nmacchwso, 0x0E, 0x17),
GEN_MAC_HANDLER(nmachhw, 0x0E, 0x01),
GEN_MAC_HANDLER(nmachhwo, 0x0E, 0x11),
GEN_MAC_HANDLER(nmachhws, 0x0E, 0x03),
GEN_MAC_HANDLER(nmachhwso, 0x0E, 0x13),
GEN_MAC_HANDLER(nmaclhw, 0x0E, 0x0D),
GEN_MAC_HANDLER(nmaclhwo, 0x0E, 0x1D),
GEN_MAC_HANDLER(nmaclhws, 0x0E, 0x0F),
GEN_MAC_HANDLER(nmaclhwso, 0x0E, 0x1F),
GEN_MAC_HANDLER(mulchw, 0x08, 0x05),
GEN_MAC_HANDLER(mulchwu, 0x08, 0x04),
GEN_MAC_HANDLER(mulhhw, 0x08, 0x01),
GEN_MAC_HANDLER(mulhhwu, 0x08, 0x00),
GEN_MAC_HANDLER(mullhw, 0x08, 0x0D),
GEN_MAC_HANDLER(mullhwu, 0x08, 0x0C),
GEN_HANDLER2_E(tbegin, "tbegin", 0x1F, 0x0E, 0x14, 0x01DFF800, \
PPC_NONE, PPC2_TM),
GEN_HANDLER2_E(tend, "tend", 0x1F, 0x0E, 0x15, 0x01FFF800, \
PPC_NONE, PPC2_TM),
GEN_HANDLER2_E(tabort, "tabort", 0x1F, 0x0E, 0x1C, 0x03E0F800, \
PPC_NONE, PPC2_TM),
GEN_HANDLER2_E(tabortwc, "tabortwc", 0x1F, 0x0E, 0x18, 0x00000000, \
PPC_NONE, PPC2_TM),
GEN_HANDLER2_E(tabortwci, "tabortwci", 0x1F, 0x0E, 0x1A, 0x00000000, \
PPC_NONE, PPC2_TM),
GEN_HANDLER2_E(tabortdc, "tabortdc", 0x1F, 0x0E, 0x19, 0x00000000, \
PPC_NONE, PPC2_TM),
GEN_HANDLER2_E(tabortdci, "tabortdci", 0x1F, 0x0E, 0x1B, 0x00000000, \
PPC_NONE, PPC2_TM),
GEN_HANDLER2_E(tsr, "tsr", 0x1F, 0x0E, 0x17, 0x03DFF800, \
PPC_NONE, PPC2_TM),
GEN_HANDLER2_E(tcheck, "tcheck", 0x1F, 0x0E, 0x16, 0x007FF800, \
PPC_NONE, PPC2_TM),
GEN_HANDLER2_E(treclaim, "treclaim", 0x1F, 0x0E, 0x1D, 0x03E0F800, \
PPC_NONE, PPC2_TM),
GEN_HANDLER2_E(trechkpt, "trechkpt", 0x1F, 0x0E, 0x1F, 0x03FFF800, \
PPC_NONE, PPC2_TM),
#include "translate/fp-ops.c.inc"
#include "translate/vmx-ops.c.inc"
#include "translate/vsx-ops.c.inc"
#include "translate/spe-ops.c.inc"
};
/*****************************************************************************/
/* Opcode types */
enum {
PPC_DIRECT = 0, /* Opcode routine */
PPC_INDIRECT = 1, /* Indirect opcode table */
};
#define PPC_OPCODE_MASK 0x3
static inline int is_indirect_opcode(void *handler)
{
return ((uintptr_t)handler & PPC_OPCODE_MASK) == PPC_INDIRECT;
}
static inline opc_handler_t **ind_table(void *handler)
{
return (opc_handler_t **)((uintptr_t)handler & ~PPC_OPCODE_MASK);
}
/* Instruction table creation */
/* Opcodes tables creation */
static void fill_new_table(opc_handler_t **table, int len)
{
int i;
for (i = 0; i < len; i++) {
table[i] = &invalid_handler;
}
}
static int create_new_table(opc_handler_t **table, unsigned char idx)
{
opc_handler_t **tmp;
tmp = g_new(opc_handler_t *, PPC_CPU_INDIRECT_OPCODES_LEN);
fill_new_table(tmp, PPC_CPU_INDIRECT_OPCODES_LEN);
table[idx] = (opc_handler_t *)((uintptr_t)tmp | PPC_INDIRECT);
return 0;
}
static int insert_in_table(opc_handler_t **table, unsigned char idx,
opc_handler_t *handler)
{
if (table[idx] != &invalid_handler) {
return -1;
}
table[idx] = handler;
return 0;
}
static int register_direct_insn(opc_handler_t **ppc_opcodes,
unsigned char idx, opc_handler_t *handler)
{
if (insert_in_table(ppc_opcodes, idx, handler) < 0) {
printf("*** ERROR: opcode %02x already assigned in main "
"opcode table\n", idx);
return -1;
}
return 0;
}
static int register_ind_in_table(opc_handler_t **table,
unsigned char idx1, unsigned char idx2,
opc_handler_t *handler)
{
if (table[idx1] == &invalid_handler) {
if (create_new_table(table, idx1) < 0) {
printf("*** ERROR: unable to create indirect table "
"idx=%02x\n", idx1);
return -1;
}
} else {
if (!is_indirect_opcode(table[idx1])) {
printf("*** ERROR: idx %02x already assigned to a direct "
"opcode\n", idx1);
return -1;
}
}
if (handler != NULL &&
insert_in_table(ind_table(table[idx1]), idx2, handler) < 0) {
printf("*** ERROR: opcode %02x already assigned in "
"opcode table %02x\n", idx2, idx1);
return -1;
}
return 0;
}
static int register_ind_insn(opc_handler_t **ppc_opcodes,
unsigned char idx1, unsigned char idx2,
opc_handler_t *handler)
{
return register_ind_in_table(ppc_opcodes, idx1, idx2, handler);
}
static int register_dblind_insn(opc_handler_t **ppc_opcodes,
unsigned char idx1, unsigned char idx2,
unsigned char idx3, opc_handler_t *handler)
{
if (register_ind_in_table(ppc_opcodes, idx1, idx2, NULL) < 0) {
printf("*** ERROR: unable to join indirect table idx "
"[%02x-%02x]\n", idx1, idx2);
return -1;
}
if (register_ind_in_table(ind_table(ppc_opcodes[idx1]), idx2, idx3,
handler) < 0) {
printf("*** ERROR: unable to insert opcode "
"[%02x-%02x-%02x]\n", idx1, idx2, idx3);
return -1;
}
return 0;
}
static int register_trplind_insn(opc_handler_t **ppc_opcodes,
unsigned char idx1, unsigned char idx2,
unsigned char idx3, unsigned char idx4,
opc_handler_t *handler)
{
opc_handler_t **table;
if (register_ind_in_table(ppc_opcodes, idx1, idx2, NULL) < 0) {
printf("*** ERROR: unable to join indirect table idx "
"[%02x-%02x]\n", idx1, idx2);
return -1;
}
table = ind_table(ppc_opcodes[idx1]);
if (register_ind_in_table(table, idx2, idx3, NULL) < 0) {
printf("*** ERROR: unable to join 2nd-level indirect table idx "
"[%02x-%02x-%02x]\n", idx1, idx2, idx3);
return -1;
}
table = ind_table(table[idx2]);
if (register_ind_in_table(table, idx3, idx4, handler) < 0) {
printf("*** ERROR: unable to insert opcode "
"[%02x-%02x-%02x-%02x]\n", idx1, idx2, idx3, idx4);
return -1;
}
return 0;
}
static int register_insn(opc_handler_t **ppc_opcodes, opcode_t *insn)
{
if (insn->opc2 != 0xFF) {
if (insn->opc3 != 0xFF) {
if (insn->opc4 != 0xFF) {
if (register_trplind_insn(ppc_opcodes, insn->opc1, insn->opc2,
insn->opc3, insn->opc4,
&insn->handler) < 0) {
return -1;
}
} else {
if (register_dblind_insn(ppc_opcodes, insn->opc1, insn->opc2,
insn->opc3, &insn->handler) < 0) {
return -1;
}
}
} else {
if (register_ind_insn(ppc_opcodes, insn->opc1,
insn->opc2, &insn->handler) < 0) {
return -1;
}
}
} else {
if (register_direct_insn(ppc_opcodes, insn->opc1, &insn->handler) < 0) {
return -1;
}
}
return 0;
}
static int test_opcode_table(opc_handler_t **table, int len)
{
int i, count, tmp;
for (i = 0, count = 0; i < len; i++) {
/* Consistency fixup */
if (table[i] == NULL) {
table[i] = &invalid_handler;
}
if (table[i] != &invalid_handler) {
if (is_indirect_opcode(table[i])) {
tmp = test_opcode_table(ind_table(table[i]),
PPC_CPU_INDIRECT_OPCODES_LEN);
if (tmp == 0) {
g_free(table[i]);
table[i] = &invalid_handler;
} else {
count++;
}
} else {
count++;
}
}
}
return count;
}
static void fix_opcode_tables(opc_handler_t **ppc_opcodes)
{
if (test_opcode_table(ppc_opcodes, PPC_CPU_OPCODES_LEN) == 0) {
printf("*** WARNING: no opcode defined !\n");
}
}
/*****************************************************************************/
void create_ppc_opcodes(PowerPCCPU *cpu, Error **errp)
{
PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu);
opcode_t *opc;
fill_new_table(cpu->opcodes, PPC_CPU_OPCODES_LEN);
for (opc = opcodes; opc < &opcodes[ARRAY_SIZE(opcodes)]; opc++) {
if (((opc->handler.type & pcc->insns_flags) != 0) ||
((opc->handler.type2 & pcc->insns_flags2) != 0)) {
if (register_insn(cpu->opcodes, opc) < 0) {
error_setg(errp, "ERROR initializing PowerPC instruction "
"0x%02x 0x%02x 0x%02x", opc->opc1, opc->opc2,
opc->opc3);
return;
}
}
}
fix_opcode_tables(cpu->opcodes);
fflush(stdout);
fflush(stderr);
}
void destroy_ppc_opcodes(PowerPCCPU *cpu)
{
opc_handler_t **table, **table_2;
int i, j, k;
for (i = 0; i < PPC_CPU_OPCODES_LEN; i++) {
if (cpu->opcodes[i] == &invalid_handler) {
continue;
}
if (is_indirect_opcode(cpu->opcodes[i])) {
table = ind_table(cpu->opcodes[i]);
for (j = 0; j < PPC_CPU_INDIRECT_OPCODES_LEN; j++) {
if (table[j] == &invalid_handler) {
continue;
}
if (is_indirect_opcode(table[j])) {
table_2 = ind_table(table[j]);
for (k = 0; k < PPC_CPU_INDIRECT_OPCODES_LEN; k++) {
if (table_2[k] != &invalid_handler &&
is_indirect_opcode(table_2[k])) {
g_free((opc_handler_t *)((uintptr_t)table_2[k] &
~PPC_INDIRECT));
}
}
g_free((opc_handler_t *)((uintptr_t)table[j] &
~PPC_INDIRECT));
}
}
g_free((opc_handler_t *)((uintptr_t)cpu->opcodes[i] &
~PPC_INDIRECT));
}
}
}
int ppc_fixup_cpu(PowerPCCPU *cpu)
{
CPUPPCState *env = &cpu->env;
/*
* TCG doesn't (yet) emulate some groups of instructions that are
* implemented on some otherwise supported CPUs (e.g. VSX and
* decimal floating point instructions on POWER7). We remove
* unsupported instruction groups from the cpu state's instruction
* masks and hope the guest can cope. For at least the pseries
* machine, the unavailability of these instructions can be
* advertised to the guest via the device tree.
*/
if ((env->insns_flags & ~PPC_TCG_INSNS)
|| (env->insns_flags2 & ~PPC_TCG_INSNS2)) {
warn_report("Disabling some instructions which are not "
"emulated by TCG (0x%" PRIx64 ", 0x%" PRIx64 ")",
env->insns_flags & ~PPC_TCG_INSNS,
env->insns_flags2 & ~PPC_TCG_INSNS2);
}
env->insns_flags &= PPC_TCG_INSNS;
env->insns_flags2 &= PPC_TCG_INSNS2;
return 0;
}
static bool decode_legacy(PowerPCCPU *cpu, DisasContext *ctx, uint32_t insn)
{
opc_handler_t **table, *handler;
uint32_t inval;
ctx->opcode = insn;
LOG_DISAS("translate opcode %08x (%02x %02x %02x %02x) (%s)\n",
insn, opc1(insn), opc2(insn), opc3(insn), opc4(insn),
ctx->le_mode ? "little" : "big");
table = cpu->opcodes;
handler = table[opc1(insn)];
if (is_indirect_opcode(handler)) {
table = ind_table(handler);
handler = table[opc2(insn)];
if (is_indirect_opcode(handler)) {
table = ind_table(handler);
handler = table[opc3(insn)];
if (is_indirect_opcode(handler)) {
table = ind_table(handler);
handler = table[opc4(insn)];
}
}
}
/* Is opcode *REALLY* valid ? */
if (unlikely(handler->handler == &gen_invalid)) {
qemu_log_mask(LOG_GUEST_ERROR, "invalid/unsupported opcode: "
"%02x - %02x - %02x - %02x (%08x) "
TARGET_FMT_lx "\n",
opc1(insn), opc2(insn), opc3(insn), opc4(insn),
insn, ctx->cia);
return false;
}
if (unlikely(handler->type & (PPC_SPE | PPC_SPE_SINGLE | PPC_SPE_DOUBLE)
&& Rc(insn))) {
inval = handler->inval2;
} else {
inval = handler->inval1;
}
if (unlikely((insn & inval) != 0)) {
qemu_log_mask(LOG_GUEST_ERROR, "invalid bits: %08x for opcode: "
"%02x - %02x - %02x - %02x (%08x) "
TARGET_FMT_lx "\n", insn & inval,
opc1(insn), opc2(insn), opc3(insn), opc4(insn),
insn, ctx->cia);
return false;
}
handler->handler(ctx);
return true;
}
static void ppc_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs)
{
DisasContext *ctx = container_of(dcbase, DisasContext, base);
CPUPPCState *env = cpu_env(cs);
uint32_t hflags = ctx->base.tb->flags;
ctx->spr_cb = env->spr_cb;
ctx->pr = (hflags >> HFLAGS_PR) & 1;
ctx->mem_idx = (hflags >> HFLAGS_DMMU_IDX) & 7;
ctx->dr = (hflags >> HFLAGS_DR) & 1;
ctx->hv = (hflags >> HFLAGS_HV) & 1;
ctx->insns_flags = env->insns_flags;
ctx->insns_flags2 = env->insns_flags2;
ctx->access_type = -1;
ctx->need_access_type = !mmu_is_64bit(env->mmu_model);
ctx->le_mode = (hflags >> HFLAGS_LE) & 1;
ctx->default_tcg_memop_mask = ctx->le_mode ? MO_LE : MO_BE;
ctx->flags = env->flags;
#if defined(TARGET_PPC64)
ctx->sf_mode = (hflags >> HFLAGS_64) & 1;
ctx->has_cfar = !!(env->flags & POWERPC_FLAG_CFAR);
ctx->has_bhrb = !!(env->flags & POWERPC_FLAG_BHRB);
#endif
ctx->lazy_tlb_flush = env->mmu_model == POWERPC_MMU_32B
|| env->mmu_model & POWERPC_MMU_64;
ctx->fpu_enabled = (hflags >> HFLAGS_FP) & 1;
ctx->spe_enabled = (hflags >> HFLAGS_SPE) & 1;
ctx->altivec_enabled = (hflags >> HFLAGS_VR) & 1;
ctx->vsx_enabled = (hflags >> HFLAGS_VSX) & 1;
ctx->tm_enabled = (hflags >> HFLAGS_TM) & 1;
ctx->gtse = (hflags >> HFLAGS_GTSE) & 1;
ctx->hr = (hflags >> HFLAGS_HR) & 1;
ctx->mmcr0_pmcc0 = (hflags >> HFLAGS_PMCC0) & 1;
ctx->mmcr0_pmcc1 = (hflags >> HFLAGS_PMCC1) & 1;
ctx->mmcr0_pmcjce = (hflags >> HFLAGS_PMCJCE) & 1;
ctx->pmc_other = (hflags >> HFLAGS_PMC_OTHER) & 1;
ctx->pmu_insn_cnt = (hflags >> HFLAGS_INSN_CNT) & 1;
ctx->bhrb_enable = (hflags >> HFLAGS_BHRB_ENABLE) & 1;
ctx->singlestep_enabled = 0;
if ((hflags >> HFLAGS_SE) & 1) {
ctx->singlestep_enabled |= CPU_SINGLE_STEP;
ctx->base.max_insns = 1;
}
if ((hflags >> HFLAGS_BE) & 1) {
ctx->singlestep_enabled |= CPU_BRANCH_STEP;
}
}
static void ppc_tr_tb_start(DisasContextBase *db, CPUState *cs)
{
}
static void ppc_tr_insn_start(DisasContextBase *dcbase, CPUState *cs)
{
tcg_gen_insn_start(dcbase->pc_next);
}
static bool is_prefix_insn(DisasContext *ctx, uint32_t insn)
{
REQUIRE_INSNS_FLAGS2(ctx, ISA310);
return opc1(insn) == 1;
}
static void ppc_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
{
DisasContext *ctx = container_of(dcbase, DisasContext, base);
PowerPCCPU *cpu = POWERPC_CPU(cs);
CPUPPCState *env = cpu_env(cs);
target_ulong pc;
uint32_t insn;
bool ok;
LOG_DISAS("----------------\n");
LOG_DISAS("nip=" TARGET_FMT_lx " super=%d ir=%d\n",
ctx->base.pc_next, ctx->mem_idx, (int)msr_ir);
ctx->cia = pc = ctx->base.pc_next;
insn = translator_ldl_swap(env, dcbase, pc, need_byteswap(ctx));
ctx->base.pc_next = pc += 4;
if (!is_prefix_insn(ctx, insn)) {
ok = (decode_insn32(ctx, insn) ||
decode_legacy(cpu, ctx, insn));
} else if ((pc & 63) == 0) {
/*
* Power v3.1, section 1.9 Exceptions:
* attempt to execute a prefixed instruction that crosses a
* 64-byte address boundary (system alignment error).
*/
gen_exception_err(ctx, POWERPC_EXCP_ALIGN, POWERPC_EXCP_ALIGN_INSN);
ok = true;
} else {
uint32_t insn2 = translator_ldl_swap(env, dcbase, pc,
need_byteswap(ctx));
ctx->base.pc_next = pc += 4;
ok = decode_insn64(ctx, deposit64(insn2, 32, 32, insn));
}
if (!ok) {
gen_invalid(ctx);
}
/* End the TB when crossing a page boundary. */
if (ctx->base.is_jmp == DISAS_NEXT && !(pc & ~TARGET_PAGE_MASK)) {
ctx->base.is_jmp = DISAS_TOO_MANY;
}
}
static void ppc_tr_tb_stop(DisasContextBase *dcbase, CPUState *cs)
{
DisasContext *ctx = container_of(dcbase, DisasContext, base);
DisasJumpType is_jmp = ctx->base.is_jmp;
target_ulong nip = ctx->base.pc_next;
if (is_jmp == DISAS_NORETURN) {
/* We have already exited the TB. */
return;
}
/* Honor single stepping. */
if (unlikely(ctx->singlestep_enabled & CPU_SINGLE_STEP)) {
bool rfi_type = false;
switch (is_jmp) {
case DISAS_TOO_MANY:
case DISAS_EXIT_UPDATE:
case DISAS_CHAIN_UPDATE:
gen_update_nip(ctx, nip);
break;
case DISAS_EXIT:
case DISAS_CHAIN:
/*
* This is a heuristic, to put it kindly. The rfi class of
* instructions are among the few outside branches that change
* NIP without taking an interrupt. Single step trace interrupts
* do not fire on completion of these instructions.
*/
rfi_type = true;
break;
default:
g_assert_not_reached();
}
gen_debug_exception(ctx, rfi_type);
return;
}
switch (is_jmp) {
case DISAS_TOO_MANY:
if (use_goto_tb(ctx, nip)) {
pmu_count_insns(ctx);
tcg_gen_goto_tb(0);
gen_update_nip(ctx, nip);
tcg_gen_exit_tb(ctx->base.tb, 0);
break;
}
/* fall through */
case DISAS_CHAIN_UPDATE:
gen_update_nip(ctx, nip);
/* fall through */
case DISAS_CHAIN:
/*
* tcg_gen_lookup_and_goto_ptr will exit the TB if
* CF_NO_GOTO_PTR is set. Count insns now.
*/
if (ctx->base.tb->flags & CF_NO_GOTO_PTR) {
pmu_count_insns(ctx);
}
tcg_gen_lookup_and_goto_ptr();
break;
case DISAS_EXIT_UPDATE:
gen_update_nip(ctx, nip);
/* fall through */
case DISAS_EXIT:
pmu_count_insns(ctx);
tcg_gen_exit_tb(NULL, 0);
break;
default:
g_assert_not_reached();
}
}
static const TranslatorOps ppc_tr_ops = {
.init_disas_context = ppc_tr_init_disas_context,
.tb_start = ppc_tr_tb_start,
.insn_start = ppc_tr_insn_start,
.translate_insn = ppc_tr_translate_insn,
.tb_stop = ppc_tr_tb_stop,
};
void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns,
vaddr pc, void *host_pc)
{
DisasContext ctx;
translator_loop(cs, tb, max_insns, pc, host_pc, &ppc_tr_ops, &ctx.base);
}