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tcg-ppc: Convert to le/be ldst helpers

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Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2013-09-10 08:54:04 -07:00
parent a058557381
commit 92d0acda27
1 changed files with 33 additions and 24 deletions
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49
tcg/ppc/tcg-target.c
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@ -550,25 +550,31 @@ static void add_qemu_ldst_label (TCGContext *s,
/* helper signature: helper_ret_ld_mmu(CPUState *env, target_ulong addr, /* helper signature: helper_ret_ld_mmu(CPUState *env, target_ulong addr,
* int mmu_idx, uintptr_t ra) * int mmu_idx, uintptr_t ra)
*/ */
static const void * const qemu_ld_helpers[4] = { static const void * const qemu_ld_helpers[16] = {
helper_ret_ldub_mmu, [MO_UB] = helper_ret_ldub_mmu,
helper_ret_lduw_mmu, [MO_LEUW] = helper_le_lduw_mmu,
helper_ret_ldul_mmu, [MO_LEUL] = helper_le_ldul_mmu,
helper_ret_ldq_mmu, [MO_LEQ] = helper_le_ldq_mmu,
[MO_BEUW] = helper_be_lduw_mmu,
[MO_BEUL] = helper_be_ldul_mmu,
[MO_BEQ] = helper_be_ldq_mmu,
}; };
/* helper signature: helper_ret_st_mmu(CPUState *env, target_ulong addr, /* helper signature: helper_ret_st_mmu(CPUState *env, target_ulong addr,
* uintxx_t val, int mmu_idx, uintptr_t ra) * uintxx_t val, int mmu_idx, uintptr_t ra)
*/ */
static const void * const qemu_st_helpers[4] = { static const void * const qemu_st_helpers[16] = {
helper_ret_stb_mmu, [MO_UB] = helper_ret_stb_mmu,
helper_ret_stw_mmu, [MO_LEUW] = helper_le_stw_mmu,
helper_ret_stl_mmu, [MO_LEUL] = helper_le_stl_mmu,
helper_ret_stq_mmu, [MO_LEQ] = helper_le_stq_mmu,
[MO_BEUW] = helper_be_stw_mmu,
[MO_BEUL] = helper_be_stl_mmu,
[MO_BEQ] = helper_be_stq_mmu,
}; };
static void *ld_trampolines[4]; static void *ld_trampolines[16];
static void *st_trampolines[4]; static void *st_trampolines[16];
/* Perform the TLB load and compare. Branches to the slow path, placing the /* Perform the TLB load and compare. Branches to the slow path, placing the
address of the branch in *LABEL_PTR. Loads the addend of the TLB into R0. address of the branch in *LABEL_PTR. Loads the addend of the TLB into R0.
@ -783,7 +789,7 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, TCGMemOp opc)
static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l) static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
{ {
TCGReg ir, datalo, datahi; TCGReg ir, datalo, datahi;
TCGMemOp opc = l->opc & MO_SSIZE; TCGMemOp opc = l->opc;
reloc_pc14 (l->label_ptr[0], (uintptr_t)s->code_ptr); reloc_pc14 (l->label_ptr[0], (uintptr_t)s->code_ptr);
@ -799,10 +805,10 @@ static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
} }
tcg_out_movi(s, TCG_TYPE_I32, ir++, l->mem_index); tcg_out_movi(s, TCG_TYPE_I32, ir++, l->mem_index);
tcg_out32(s, MFSPR | RT(ir++) | LR); tcg_out32(s, MFSPR | RT(ir++) | LR);
tcg_out_b(s, LK, (uintptr_t)ld_trampolines[opc & MO_SIZE]); tcg_out_b(s, LK, (uintptr_t)ld_trampolines[opc & ~MO_SIGN]);
datalo = l->datalo_reg; datalo = l->datalo_reg;
switch (opc) { switch (opc & MO_SSIZE) {
case MO_SB: case MO_SB:
tcg_out32(s, EXTSB | RA(datalo) | RS(TCG_REG_R3)); tcg_out32(s, EXTSB | RA(datalo) | RS(TCG_REG_R3));
break; break;
@ -833,7 +839,7 @@ static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *l) static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
{ {
TCGReg ir, datalo; TCGReg ir, datalo;
TCGMemOp s_bits = l->opc & MO_SIZE; TCGMemOp opc = l->opc;
reloc_pc14 (l->label_ptr[0], (tcg_target_long) s->code_ptr); reloc_pc14 (l->label_ptr[0], (tcg_target_long) s->code_ptr);
@ -849,7 +855,7 @@ static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
} }
datalo = l->datalo_reg; datalo = l->datalo_reg;
switch (s_bits) { switch (opc & MO_SIZE) {
case MO_8: case MO_8:
tcg_out32(s, (RLWINM | RA (ir) | RS (datalo) tcg_out32(s, (RLWINM | RA (ir) | RS (datalo)
| SH (0) | MB (24) | ME (31))); | SH (0) | MB (24) | ME (31)));
@ -873,7 +879,7 @@ static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
tcg_out_movi(s, TCG_TYPE_I32, ir++, l->mem_index); tcg_out_movi(s, TCG_TYPE_I32, ir++, l->mem_index);
tcg_out32(s, MFSPR | RT(ir++) | LR); tcg_out32(s, MFSPR | RT(ir++) | LR);
tcg_out_b(s, LK, (uintptr_t)st_trampolines[l->opc]); tcg_out_b(s, LK, (uintptr_t)st_trampolines[opc]);
tcg_out_b(s, 0, (uintptr_t)l->raddr); tcg_out_b(s, 0, (uintptr_t)l->raddr);
} }
#endif #endif
@ -948,13 +954,16 @@ static void tcg_target_qemu_prologue (TCGContext *s)
tcg_out32 (s, BCLR | BO_ALWAYS); tcg_out32 (s, BCLR | BO_ALWAYS);
#ifdef CONFIG_SOFTMMU #ifdef CONFIG_SOFTMMU
for (i = 0; i < 4; ++i) { for (i = 0; i < 16; ++i) {
if (qemu_ld_helpers[i]) {
ld_trampolines[i] = s->code_ptr; ld_trampolines[i] = s->code_ptr;
emit_ldst_trampoline(s, qemu_ld_helpers[i]); emit_ldst_trampoline(s, qemu_ld_helpers[i]);
}
if (qemu_st_helpers[i]) {
st_trampolines[i] = s->code_ptr; st_trampolines[i] = s->code_ptr;
emit_ldst_trampoline(s, qemu_st_helpers[i]); emit_ldst_trampoline(s, qemu_st_helpers[i]);
} }
}
#endif #endif
} }