#define LR_OFFSET 4
#endif
-#define FAST_PATH
-
#ifndef GUEST_BASE
#define GUEST_BASE 0
#endif
CR_SO
};
-static const uint32_t tcg_to_bc[10] = {
+static const uint32_t tcg_to_bc[] = {
[TCG_COND_EQ] = BC | BI (7, CR_EQ) | BO_COND_TRUE,
[TCG_COND_NE] = BC | BI (7, CR_EQ) | BO_COND_FALSE,
[TCG_COND_LT] = BC | BI (7, CR_LT) | BO_COND_TRUE,
#if defined(CONFIG_SOFTMMU)
-#include "../../softmmu_defs.h"
+static void add_qemu_ldst_label (TCGContext *s,
+ int is_ld,
+ int opc,
+ int data_reg,
+ int data_reg2,
+ int addrlo_reg,
+ int addrhi_reg,
+ int mem_index,
+ uint8_t *raddr,
+ uint8_t *label_ptr)
+{
+ int idx;
+ TCGLabelQemuLdst *label;
+
+ if (s->nb_qemu_ldst_labels >= TCG_MAX_QEMU_LDST) {
+ tcg_abort();
+ }
+
+ idx = s->nb_qemu_ldst_labels++;
+ label = (TCGLabelQemuLdst *)&s->qemu_ldst_labels[idx];
+ label->is_ld = is_ld;
+ label->opc = opc;
+ label->datalo_reg = data_reg;
+ label->datahi_reg = data_reg2;
+ label->addrlo_reg = addrlo_reg;
+ label->addrhi_reg = addrhi_reg;
+ label->mem_index = mem_index;
+ label->raddr = raddr;
+ label->label_ptr[0] = label_ptr;
+}
+
+#include "exec/softmmu_defs.h"
/* helper signature: helper_ld_mmu(CPUState *env, target_ulong addr,
int mmu_idx) */
helper_stl_mmu,
helper_stq_mmu,
};
-#endif
-static void tcg_out_qemu_ld (TCGContext *s, const TCGArg *args, int opc)
-{
- int addr_reg, data_reg, data_reg2, r0, r1, rbase, bswap;
-#ifdef CONFIG_SOFTMMU
- int mem_index, s_bits, r2, ir;
- void *label1_ptr, *label2_ptr;
-#if TARGET_LONG_BITS == 64
- int addr_reg2;
-#endif
-#endif
+static void *ld_trampolines[4];
+static void *st_trampolines[4];
- data_reg = *args++;
- if (opc == 3)
- data_reg2 = *args++;
- else
- data_reg2 = 0;
- addr_reg = *args++;
-
-#ifdef CONFIG_SOFTMMU
-#if TARGET_LONG_BITS == 64
- addr_reg2 = *args++;
-#endif
- mem_index = *args;
- s_bits = opc & 3;
- r0 = 3;
- r1 = 4;
- r2 = 0;
- rbase = 0;
+static void tcg_out_tlb_check (TCGContext *s, int r0, int r1, int r2,
+ int addr_reg, int addr_reg2, int s_bits,
+ int offset1, int offset2, uint8_t **label_ptr)
+{
+ uint16_t retranst;
tcg_out32 (s, (RLWINM
| RA (r0)
tcg_out32 (s, (LWZU
| RT (r1)
| RA (r0)
- | offsetof (CPUArchState, tlb_table[mem_index][0].addr_read)
+ | offset1
)
);
tcg_out32 (s, (RLWINM
tcg_out32 (s, CMP | BF (6) | RA (addr_reg2) | RB (r1));
tcg_out32 (s, CRAND | BT (7, CR_EQ) | BA (6, CR_EQ) | BB (7, CR_EQ));
#endif
+ *label_ptr = s->code_ptr;
+ retranst = ((uint16_t *) s->code_ptr)[1] & ~3;
+ tcg_out32 (s, BC | BI (7, CR_EQ) | retranst | BO_COND_FALSE);
- label1_ptr = s->code_ptr;
-#ifdef FAST_PATH
- tcg_out32 (s, BC | BI (7, CR_EQ) | BO_COND_TRUE);
-#endif
-
- /* slow path */
- ir = 3;
- tcg_out_mov (s, TCG_TYPE_I32, ir++, TCG_AREG0);
-#if TARGET_LONG_BITS == 32
- tcg_out_mov (s, TCG_TYPE_I32, ir++, addr_reg);
-#else
-#ifdef TCG_TARGET_CALL_ALIGN_ARGS
- ir |= 1;
-#endif
- tcg_out_mov (s, TCG_TYPE_I32, ir++, addr_reg2);
- tcg_out_mov (s, TCG_TYPE_I32, ir++, addr_reg);
-#endif
- tcg_out_movi (s, TCG_TYPE_I32, ir, mem_index);
-
- tcg_out_call (s, (tcg_target_long) qemu_ld_helpers[s_bits], 1);
- switch (opc) {
- case 0|4:
- tcg_out32 (s, EXTSB | RA (data_reg) | RS (3));
- break;
- case 1|4:
- tcg_out32 (s, EXTSH | RA (data_reg) | RS (3));
- break;
- case 0:
- case 1:
- case 2:
- if (data_reg != 3)
- tcg_out_mov (s, TCG_TYPE_I32, data_reg, 3);
- break;
- case 3:
- if (data_reg == 3) {
- if (data_reg2 == 4) {
- tcg_out_mov (s, TCG_TYPE_I32, 0, 4);
- tcg_out_mov (s, TCG_TYPE_I32, 4, 3);
- tcg_out_mov (s, TCG_TYPE_I32, 3, 0);
- }
- else {
- tcg_out_mov (s, TCG_TYPE_I32, data_reg2, 3);
- tcg_out_mov (s, TCG_TYPE_I32, 3, 4);
- }
- }
- else {
- if (data_reg != 4) tcg_out_mov (s, TCG_TYPE_I32, data_reg, 4);
- if (data_reg2 != 3) tcg_out_mov (s, TCG_TYPE_I32, data_reg2, 3);
- }
- break;
- }
- label2_ptr = s->code_ptr;
- tcg_out32 (s, B);
-
- /* label1: fast path */
-#ifdef FAST_PATH
- reloc_pc14 (label1_ptr, (tcg_target_long) s->code_ptr);
-#endif
-
- /* r0 now contains &env->tlb_table[mem_index][index].addr_read */
+ /* r0 now contains &env->tlb_table[mem_index][index].addr_x */
tcg_out32 (s, (LWZ
| RT (r0)
| RA (r0)
- | (offsetof (CPUTLBEntry, addend)
- - offsetof (CPUTLBEntry, addr_read))
- ));
+ | offset2
+ )
+ );
/* r0 = env->tlb_table[mem_index][index].addend */
tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (addr_reg));
/* r0 = env->tlb_table[mem_index][index].addend + addr */
+}
+#endif
+
+static void tcg_out_qemu_ld (TCGContext *s, const TCGArg *args, int opc)
+{
+ int addr_reg, data_reg, data_reg2, r0, r1, rbase, bswap;
+#ifdef CONFIG_SOFTMMU
+ int mem_index, s_bits, r2, addr_reg2;
+ uint8_t *label_ptr;
+#endif
+
+ data_reg = *args++;
+ if (opc == 3)
+ data_reg2 = *args++;
+ else
+ data_reg2 = 0;
+ addr_reg = *args++;
+
+#ifdef CONFIG_SOFTMMU
+#if TARGET_LONG_BITS == 64
+ addr_reg2 = *args++;
+#else
+ addr_reg2 = 0;
+#endif
+ mem_index = *args;
+ s_bits = opc & 3;
+ r0 = 3;
+ r1 = 4;
+ r2 = 0;
+ rbase = 0;
+
+ tcg_out_tlb_check (
+ s, r0, r1, r2, addr_reg, addr_reg2, s_bits,
+ offsetof (CPUArchState, tlb_table[mem_index][0].addr_read),
+ offsetof (CPUTLBEntry, addend) - offsetof (CPUTLBEntry, addr_read),
+ &label_ptr
+ );
#else /* !CONFIG_SOFTMMU */
r0 = addr_reg;
r1 = 3;
}
break;
}
-
#ifdef CONFIG_SOFTMMU
- reloc_pc24 (label2_ptr, (tcg_target_long) s->code_ptr);
+ add_qemu_ldst_label (s,
+ 1,
+ opc,
+ data_reg,
+ data_reg2,
+ addr_reg,
+ addr_reg2,
+ mem_index,
+ s->code_ptr,
+ label_ptr);
#endif
}
{
int addr_reg, r0, r1, data_reg, data_reg2, bswap, rbase;
#ifdef CONFIG_SOFTMMU
- int mem_index, r2, ir;
- void *label1_ptr, *label2_ptr;
-#if TARGET_LONG_BITS == 64
- int addr_reg2;
-#endif
+ int mem_index, r2, addr_reg2;
+ uint8_t *label_ptr;
#endif
data_reg = *args++;
#ifdef CONFIG_SOFTMMU
#if TARGET_LONG_BITS == 64
addr_reg2 = *args++;
+#else
+ addr_reg2 = 0;
#endif
mem_index = *args;
r0 = 3;
r2 = 0;
rbase = 0;
- tcg_out32 (s, (RLWINM
- | RA (r0)
- | RS (addr_reg)
- | SH (32 - (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS))
- | MB (32 - (CPU_TLB_ENTRY_BITS + CPU_TLB_BITS))
- | ME (31 - CPU_TLB_ENTRY_BITS)
- )
- );
- tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (TCG_AREG0));
- tcg_out32 (s, (LWZU
- | RT (r1)
- | RA (r0)
- | offsetof (CPUArchState, tlb_table[mem_index][0].addr_write)
- )
- );
- tcg_out32 (s, (RLWINM
- | RA (r2)
- | RS (addr_reg)
- | SH (0)
- | MB ((32 - opc) & 31)
- | ME (31 - TARGET_PAGE_BITS)
- )
+ tcg_out_tlb_check (
+ s, r0, r1, r2, addr_reg, addr_reg2, opc & 3,
+ offsetof (CPUArchState, tlb_table[mem_index][0].addr_write),
+ offsetof (CPUTLBEntry, addend) - offsetof (CPUTLBEntry, addr_write),
+ &label_ptr
);
+#else /* !CONFIG_SOFTMMU */
+ r0 = addr_reg;
+ r1 = 3;
+ rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
+#endif
- tcg_out32 (s, CMP | (7 << 23) | RA (r2) | RB (r1));
-#if TARGET_LONG_BITS == 64
- tcg_out32 (s, LWZ | RT (r1) | RA (r0) | 4);
- tcg_out32 (s, CMP | BF (6) | RA (addr_reg2) | RB (r1));
- tcg_out32 (s, CRAND | BT (7, CR_EQ) | BA (6, CR_EQ) | BB (7, CR_EQ));
+#ifdef TARGET_WORDS_BIGENDIAN
+ bswap = 0;
+#else
+ bswap = 1;
#endif
+ switch (opc) {
+ case 0:
+ tcg_out32 (s, STBX | SAB (data_reg, rbase, r0));
+ break;
+ case 1:
+ if (bswap)
+ tcg_out32 (s, STHBRX | SAB (data_reg, rbase, r0));
+ else
+ tcg_out32 (s, STHX | SAB (data_reg, rbase, r0));
+ break;
+ case 2:
+ if (bswap)
+ tcg_out32 (s, STWBRX | SAB (data_reg, rbase, r0));
+ else
+ tcg_out32 (s, STWX | SAB (data_reg, rbase, r0));
+ break;
+ case 3:
+ if (bswap) {
+ tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4);
+ tcg_out32 (s, STWBRX | SAB (data_reg, rbase, r0));
+ tcg_out32 (s, STWBRX | SAB (data_reg2, rbase, r1));
+ }
+ else {
+#ifdef CONFIG_USE_GUEST_BASE
+ tcg_out32 (s, STWX | SAB (data_reg2, rbase, r0));
+ tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4);
+ tcg_out32 (s, STWX | SAB (data_reg, rbase, r1));
+#else
+ tcg_out32 (s, STW | RS (data_reg2) | RA (r0));
+ tcg_out32 (s, STW | RS (data_reg) | RA (r0) | 4);
+#endif
+ }
+ break;
+ }
+
+#ifdef CONFIG_SOFTMMU
+ add_qemu_ldst_label (s,
+ 0,
+ opc,
+ data_reg,
+ data_reg2,
+ addr_reg,
+ addr_reg2,
+ mem_index,
+ s->code_ptr,
+ label_ptr);
+#endif
+}
+
+#if defined(CONFIG_SOFTMMU)
+static void tcg_out_qemu_ld_slow_path (TCGContext *s, TCGLabelQemuLdst *label)
+{
+ int s_bits;
+ int ir;
+ int opc = label->opc;
+ int mem_index = label->mem_index;
+ int data_reg = label->datalo_reg;
+ int data_reg2 = label->datahi_reg;
+ int addr_reg = label->addrlo_reg;
+ uint8_t *raddr = label->raddr;
+ uint8_t **label_ptr = &label->label_ptr[0];
+
+ s_bits = opc & 3;
- label1_ptr = s->code_ptr;
-#ifdef FAST_PATH
- tcg_out32 (s, BC | BI (7, CR_EQ) | BO_COND_TRUE);
+ /* resolve label address */
+ reloc_pc14 (label_ptr[0], (tcg_target_long) s->code_ptr);
+
+ /* slow path */
+ ir = 4;
+#if TARGET_LONG_BITS == 32
+ tcg_out_mov (s, TCG_TYPE_I32, ir++, addr_reg);
+#else
+#ifdef TCG_TARGET_CALL_ALIGN_ARGS
+ ir |= 1;
#endif
+ tcg_out_mov (s, TCG_TYPE_I32, ir++, label->addrhi_reg);
+ tcg_out_mov (s, TCG_TYPE_I32, ir++, addr_reg);
+#endif
+ tcg_out_movi (s, TCG_TYPE_I32, ir, mem_index);
+ tcg_out_call (s, (tcg_target_long) ld_trampolines[s_bits], 1);
+ tcg_out32 (s, (tcg_target_long) raddr);
+ switch (opc) {
+ case 0|4:
+ tcg_out32 (s, EXTSB | RA (data_reg) | RS (3));
+ break;
+ case 1|4:
+ tcg_out32 (s, EXTSH | RA (data_reg) | RS (3));
+ break;
+ case 0:
+ case 1:
+ case 2:
+ if (data_reg != 3)
+ tcg_out_mov (s, TCG_TYPE_I32, data_reg, 3);
+ break;
+ case 3:
+ if (data_reg == 3) {
+ if (data_reg2 == 4) {
+ tcg_out_mov (s, TCG_TYPE_I32, 0, 4);
+ tcg_out_mov (s, TCG_TYPE_I32, 4, 3);
+ tcg_out_mov (s, TCG_TYPE_I32, 3, 0);
+ }
+ else {
+ tcg_out_mov (s, TCG_TYPE_I32, data_reg2, 3);
+ tcg_out_mov (s, TCG_TYPE_I32, 3, 4);
+ }
+ }
+ else {
+ if (data_reg != 4) tcg_out_mov (s, TCG_TYPE_I32, data_reg, 4);
+ if (data_reg2 != 3) tcg_out_mov (s, TCG_TYPE_I32, data_reg2, 3);
+ }
+ break;
+ }
+ /* Jump to the code corresponding to next IR of qemu_st */
+ tcg_out_b (s, 0, (tcg_target_long) raddr);
+}
+
+static void tcg_out_qemu_st_slow_path (TCGContext *s, TCGLabelQemuLdst *label)
+{
+ int ir;
+ int opc = label->opc;
+ int mem_index = label->mem_index;
+ int data_reg = label->datalo_reg;
+ int data_reg2 = label->datahi_reg;
+ int addr_reg = label->addrlo_reg;
+ uint8_t *raddr = label->raddr;
+ uint8_t **label_ptr = &label->label_ptr[0];
+
+ /* resolve label address */
+ reloc_pc14 (label_ptr[0], (tcg_target_long) s->code_ptr);
/* slow path */
- ir = 3;
- tcg_out_mov (s, TCG_TYPE_I32, ir++, TCG_AREG0);
+ ir = 4;
#if TARGET_LONG_BITS == 32
tcg_out_mov (s, TCG_TYPE_I32, ir++, addr_reg);
#else
#ifdef TCG_TARGET_CALL_ALIGN_ARGS
ir |= 1;
#endif
- tcg_out_mov (s, TCG_TYPE_I32, ir++, addr_reg2);
+ tcg_out_mov (s, TCG_TYPE_I32, ir++, label->addrhi_reg);
tcg_out_mov (s, TCG_TYPE_I32, ir++, addr_reg);
#endif
ir++;
tcg_out_movi (s, TCG_TYPE_I32, ir, mem_index);
- tcg_out_call (s, (tcg_target_long) qemu_st_helpers[opc], 1);
- label2_ptr = s->code_ptr;
- tcg_out32 (s, B);
-
- /* label1: fast path */
-#ifdef FAST_PATH
- reloc_pc14 (label1_ptr, (tcg_target_long) s->code_ptr);
-#endif
-
- tcg_out32 (s, (LWZ
- | RT (r0)
- | RA (r0)
- | (offsetof (CPUTLBEntry, addend)
- - offsetof (CPUTLBEntry, addr_write))
- ));
- /* r0 = env->tlb_table[mem_index][index].addend */
- tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (addr_reg));
- /* r0 = env->tlb_table[mem_index][index].addend + addr */
-
-#else /* !CONFIG_SOFTMMU */
- r0 = addr_reg;
- r1 = 3;
- rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
-#endif
+ tcg_out_call (s, (tcg_target_long) st_trampolines[opc], 1);
+ tcg_out32 (s, (tcg_target_long) raddr);
+ tcg_out_b (s, 0, (tcg_target_long) raddr);
+}
-#ifdef TARGET_WORDS_BIGENDIAN
- bswap = 0;
-#else
- bswap = 1;
-#endif
- switch (opc) {
- case 0:
- tcg_out32 (s, STBX | SAB (data_reg, rbase, r0));
- break;
- case 1:
- if (bswap)
- tcg_out32 (s, STHBRX | SAB (data_reg, rbase, r0));
- else
- tcg_out32 (s, STHX | SAB (data_reg, rbase, r0));
- break;
- case 2:
- if (bswap)
- tcg_out32 (s, STWBRX | SAB (data_reg, rbase, r0));
- else
- tcg_out32 (s, STWX | SAB (data_reg, rbase, r0));
- break;
- case 3:
- if (bswap) {
- tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4);
- tcg_out32 (s, STWBRX | SAB (data_reg, rbase, r0));
- tcg_out32 (s, STWBRX | SAB (data_reg2, rbase, r1));
+void tcg_out_tb_finalize(TCGContext *s)
+{
+ int i;
+ TCGLabelQemuLdst *label;
+
+ /* qemu_ld/st slow paths */
+ for (i = 0; i < s->nb_qemu_ldst_labels; i++) {
+ label = (TCGLabelQemuLdst *) &s->qemu_ldst_labels[i];
+ if (label->is_ld) {
+ tcg_out_qemu_ld_slow_path (s, label);
}
else {
-#ifdef CONFIG_USE_GUEST_BASE
- tcg_out32 (s, STWX | SAB (data_reg2, rbase, r0));
- tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4);
- tcg_out32 (s, STWX | SAB (data_reg, rbase, r1));
-#else
- tcg_out32 (s, STW | RS (data_reg2) | RA (r0));
- tcg_out32 (s, STW | RS (data_reg) | RA (r0) | 4);
-#endif
+ tcg_out_qemu_st_slow_path (s, label);
}
- break;
}
+}
+#endif
#ifdef CONFIG_SOFTMMU
- reloc_pc24 (label2_ptr, (tcg_target_long) s->code_ptr);
-#endif
+static void emit_ldst_trampoline (TCGContext *s, const void *ptr)
+{
+ tcg_out32 (s, MFSPR | RT (3) | LR);
+ tcg_out32 (s, ADDI | RT (3) | RA (3) | 4);
+ tcg_out32 (s, MTSPR | RS (3) | LR);
+ tcg_out_mov (s, TCG_TYPE_I32, 3, TCG_AREG0);
+ tcg_out_b (s, 0, (tcg_target_long) ptr);
}
+#endif
static void tcg_target_qemu_prologue (TCGContext *s)
{
tcg_out32 (s, MTSPR | RS (0) | LR);
tcg_out32 (s, ADDI | RT (1) | RA (1) | frame_size);
tcg_out32 (s, BCLR | BO_ALWAYS);
+
+#ifdef CONFIG_SOFTMMU
+ for (i = 0; i < 4; ++i) {
+ ld_trampolines[i] = s->code_ptr;
+ emit_ldst_trampoline (s, qemu_ld_helpers[i]);
+
+ st_trampolines[i] = s->code_ptr;
+ emit_ldst_trampoline (s, qemu_st_helpers[i]);
+ }
+#endif
}
static void tcg_out_ld (TCGContext *s, TCGType type, TCGReg ret, TCGReg arg1,
case INDEX_op_call:
tcg_out_call (s, args[0], const_args[0]);
break;
- case INDEX_op_jmp:
- if (const_args[0]) {
- tcg_out_b (s, 0, args[0]);
- }
- else {
- tcg_out32 (s, MTSPR | RS (args[0]) | CTR);
- tcg_out32 (s, BCCTR | BO_ALWAYS);
- }
- break;
case INDEX_op_movi_i32:
tcg_out_movi(s, TCG_TYPE_I32, args[0], args[1]);
break;
tcg_out32 (s, DIVWU | TAB (args[0], args[1], args[2]));
break;
- case INDEX_op_rem_i32:
- tcg_out32 (s, DIVW | TAB (0, args[1], args[2]));
- tcg_out32 (s, MULLW | TAB (0, 0, args[2]));
- tcg_out32 (s, SUBF | TAB (args[0], 0, args[1]));
- break;
-
- case INDEX_op_remu_i32:
- tcg_out32 (s, DIVWU | TAB (0, args[1], args[2]));
- tcg_out32 (s, MULLW | TAB (0, 0, args[2]));
- tcg_out32 (s, SUBF | TAB (args[0], 0, args[1]));
- break;
-
case INDEX_op_mulu2_i32:
if (args[0] == args[2] || args[0] == args[3]) {
tcg_out32 (s, MULLW | TAB (0, args[2], args[3]));
{ INDEX_op_exit_tb, { } },
{ INDEX_op_goto_tb, { } },
{ INDEX_op_call, { "ri" } },
- { INDEX_op_jmp, { "ri" } },
{ INDEX_op_br, { } },
{ INDEX_op_mov_i32, { "r", "r" } },
{ INDEX_op_mul_i32, { "r", "r", "ri" } },
{ INDEX_op_div_i32, { "r", "r", "r" } },
{ INDEX_op_divu_i32, { "r", "r", "r" } },
- { INDEX_op_rem_i32, { "r", "r", "r" } },
- { INDEX_op_remu_i32, { "r", "r", "r" } },
{ INDEX_op_mulu2_i32, { "r", "r", "r", "r" } },
{ INDEX_op_sub_i32, { "r", "r", "ri" } },
{ INDEX_op_and_i32, { "r", "r", "ri" } },
projects / qemu.git / blobdiff