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提交 46bb0137 编写于 作者: M Mark Cave-Ayland
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SPARC64: add icount support 

This patch adds gen_io_start()/gen_io_end() to various instructions as required
in order to boot my OpenBIOS test images on qemu-system-sparc64 with icount
enabled.
Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: NRichard Henderson <richard.henderson@linaro.org>
Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
上级 a2a5a7b5
隐藏空白更改
内联 并排
Showing with 110 addition and 1 deletion
target/sparc/translate.c
浏览文件 @ 46bb0137
......@@ -41,6 +41,8 @@
#define JUMP_PC 2 /* dynamic pc value which takes only two values
according to jump_pc[T2] */
#define DISAS_EXIT DISAS_TARGET_0
/* global register indexes */
static TCGv_ptr cpu_regwptr;
static TCGv cpu_cc_src, cpu_cc_src2, cpu_cc_dst;
......@@ -3400,11 +3402,17 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
r_const = tcg_const_i32(dc->mem_idx);
tcg_gen_ld_ptr(r_tickptr, cpu_env,
offsetof(CPUSPARCState, tick));
if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
gen_io_start();
}
gen_helper_tick_get_count(cpu_dst, cpu_env, r_tickptr,
r_const);
tcg_temp_free_ptr(r_tickptr);
tcg_temp_free_i32(r_const);
gen_store_gpr(dc, rd, cpu_dst);
if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
gen_io_end();
}
}
break;
case 0x5: /* V9 rdpc */
......@@ -3447,11 +3455,17 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
r_const = tcg_const_i32(dc->mem_idx);
tcg_gen_ld_ptr(r_tickptr, cpu_env,
offsetof(CPUSPARCState, stick));
if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
gen_io_start();
}
gen_helper_tick_get_count(cpu_dst, cpu_env, r_tickptr,
r_const);
tcg_temp_free_ptr(r_tickptr);
tcg_temp_free_i32(r_const);
gen_store_gpr(dc, rd, cpu_dst);
if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
gen_io_end();
}
}
break;
case 0x19: /* System tick compare */
......@@ -3576,10 +3590,16 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
r_const = tcg_const_i32(dc->mem_idx);
tcg_gen_ld_ptr(r_tickptr, cpu_env,
offsetof(CPUSPARCState, tick));
if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
gen_io_start();
}
gen_helper_tick_get_count(cpu_tmp0, cpu_env,
r_tickptr, r_const);
tcg_temp_free_ptr(r_tickptr);
tcg_temp_free_i32(r_const);
if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
gen_io_end();
}
}
break;
case 5: // tba
......@@ -4385,9 +4405,19 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
r_tickptr = tcg_temp_new_ptr();
tcg_gen_ld_ptr(r_tickptr, cpu_env,
offsetof(CPUSPARCState, tick));
if (tb_cflags(dc->base.tb) &
CF_USE_ICOUNT) {
gen_io_start();
}
gen_helper_tick_set_limit(r_tickptr,
cpu_tick_cmpr);
tcg_temp_free_ptr(r_tickptr);
if (tb_cflags(dc->base.tb) &
CF_USE_ICOUNT) {
gen_io_end();
}
/* End TB to handle timer interrupt */
dc->base.is_jmp = DISAS_EXIT;
}
break;
case 0x18: /* System tick */
......@@ -4403,9 +4433,19 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
r_tickptr = tcg_temp_new_ptr();
tcg_gen_ld_ptr(r_tickptr, cpu_env,
offsetof(CPUSPARCState, stick));
if (tb_cflags(dc->base.tb) &
CF_USE_ICOUNT) {
gen_io_start();
}
gen_helper_tick_set_count(r_tickptr,
cpu_tmp0);
tcg_temp_free_ptr(r_tickptr);
if (tb_cflags(dc->base.tb) &
CF_USE_ICOUNT) {
gen_io_end();
}
/* End TB to handle timer interrupt */
dc->base.is_jmp = DISAS_EXIT;
}
break;
case 0x19: /* System tick compare */
......@@ -4421,9 +4461,19 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
r_tickptr = tcg_temp_new_ptr();
tcg_gen_ld_ptr(r_tickptr, cpu_env,
offsetof(CPUSPARCState, stick));
if (tb_cflags(dc->base.tb) &
CF_USE_ICOUNT) {
gen_io_start();
}
gen_helper_tick_set_limit(r_tickptr,
cpu_stick_cmpr);
tcg_temp_free_ptr(r_tickptr);
if (tb_cflags(dc->base.tb) &
CF_USE_ICOUNT) {
gen_io_end();
}
/* End TB to handle timer interrupt */
dc->base.is_jmp = DISAS_EXIT;
}
break;
......@@ -4531,9 +4581,19 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
r_tickptr = tcg_temp_new_ptr();
tcg_gen_ld_ptr(r_tickptr, cpu_env,
offsetof(CPUSPARCState, tick));
if (tb_cflags(dc->base.tb) &
CF_USE_ICOUNT) {
gen_io_start();
}
gen_helper_tick_set_count(r_tickptr,
cpu_tmp0);
tcg_temp_free_ptr(r_tickptr);
if (tb_cflags(dc->base.tb) &
CF_USE_ICOUNT) {
gen_io_end();
}
/* End TB to handle timer interrupt */
dc->base.is_jmp = DISAS_EXIT;
}
break;
case 5: // tba
......@@ -4541,7 +4601,13 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
break;
case 6: // pstate
save_state(dc);
if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
gen_io_start();
}
gen_helper_wrpstate(cpu_env, cpu_tmp0);
if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
gen_io_end();
}
dc->npc = DYNAMIC_PC;
break;
case 7: // tl
......@@ -4551,7 +4617,13 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
dc->npc = DYNAMIC_PC;
break;
case 8: // pil
if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
gen_io_start();
}
gen_helper_wrpil(cpu_env, cpu_tmp0);
if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
gen_io_end();
}
break;
case 9: // cwp
gen_helper_wrcwp(cpu_env, cpu_tmp0);
......@@ -4642,9 +4714,19 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
r_tickptr = tcg_temp_new_ptr();
tcg_gen_ld_ptr(r_tickptr, cpu_env,
offsetof(CPUSPARCState, hstick));
if (tb_cflags(dc->base.tb) &
CF_USE_ICOUNT) {
gen_io_start();
}
gen_helper_tick_set_limit(r_tickptr,
cpu_hstick_cmpr);
tcg_temp_free_ptr(r_tickptr);
if (tb_cflags(dc->base.tb) &
CF_USE_ICOUNT) {
gen_io_end();
}
/* End TB to handle timer interrupt */
dc->base.is_jmp = DISAS_EXIT;
}
break;
case 6: // hver readonly
......@@ -5265,14 +5347,26 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
goto priv_insn;
dc->npc = DYNAMIC_PC;
dc->pc = DYNAMIC_PC;
if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
gen_io_start();
}
gen_helper_done(cpu_env);
if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
gen_io_end();
}
goto jmp_insn;
case 1:
if (!supervisor(dc))
goto priv_insn;
dc->npc = DYNAMIC_PC;
dc->pc = DYNAMIC_PC;
if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
gen_io_start();
}
gen_helper_retry(cpu_env);
if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
gen_io_end();
}
goto jmp_insn;
default:
goto illegal_insn;
......@@ -5822,7 +5916,9 @@ static void sparc_tr_tb_stop(DisasContextBase *dcbase, CPUState *cs)
{
DisasContext *dc = container_of(dcbase, DisasContext, base);
if (dc->base.is_jmp != DISAS_NORETURN) {
switch (dc->base.is_jmp) {
case DISAS_NEXT:
case DISAS_TOO_MANY:
if (dc->pc != DYNAMIC_PC &&
(dc->npc != DYNAMIC_PC && dc->npc != JUMP_PC)) {
/* static PC and NPC: we can use direct chaining */
......@@ -5834,6 +5930,19 @@ static void sparc_tr_tb_stop(DisasContextBase *dcbase, CPUState *cs)
save_npc(dc);
tcg_gen_exit_tb(NULL, 0);
}
break;
case DISAS_NORETURN:
break;
case DISAS_EXIT:
/* Exit TB */
save_state(dc);
tcg_gen_exit_tb(NULL, 0);
break;
default:
g_assert_not_reached();
}
}
......
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