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qemu/0030-target-unicore32-switch-to-AREG0-free-mode.patch

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Pull patches queued for qemu 1.2.1
2012-10-28 18:05:07 +00:00
From 23ff6fa6a883d210aab33e09d0bb9470df5083fc Mon Sep 17 00:00:00 2001
From: Blue Swirl <blauwirbel@gmail.com>
Date: Sun, 2 Sep 2012 07:42:33 +0000
Subject: [PATCH] target-unicore32: switch to AREG0 free mode
Add an explicit CPUState parameter instead of relying on AREG0
and switch to AREG0 free mode.
Tested-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
configure | 2 +-
target-unicore32/Makefile.objs | 2 --
target-unicore32/helper.h | 26 ++++++++---------
target-unicore32/op_helper.c | 65 ++++++++++++++++--------------------------
target-unicore32/translate.c | 38 ++++++++++++------------
5 files changed, 58 insertions(+), 75 deletions(-)
diff --git a/configure b/configure
index af03942..a8827ba 100755
--- a/configure
+++ b/configure
@@ -3839,7 +3839,7 @@ symlink "$source_path/Makefile.target" "$target_dir/Makefile"
case "$target_arch2" in
- alpha | i386 | lm32 | m68k | or32 | s390x | sparc* | x86_64 | xtensa* | ppc*)
+ alpha | i386 | lm32 | m68k | or32 | s390x | sparc* | unicore32 | x86_64 | xtensa* | ppc*)
echo "CONFIG_TCG_PASS_AREG0=y" >> $config_target_mak
;;
esac
diff --git a/target-unicore32/Makefile.objs b/target-unicore32/Makefile.objs
index 777f01f..8e143da 100644
--- a/target-unicore32/Makefile.objs
+++ b/target-unicore32/Makefile.objs
@@ -2,5 +2,3 @@ obj-y += translate.o op_helper.o helper.o cpu.o
obj-y += ucf64_helper.o
obj-$(CONFIG_SOFTMMU) += machine.o softmmu.o
-
-$(obj)/op_helper.o: QEMU_CFLAGS += $(HELPER_CFLAGS)
diff --git a/target-unicore32/helper.h b/target-unicore32/helper.h
index 305318a..a4b8149 100644
--- a/target-unicore32/helper.h
+++ b/target-unicore32/helper.h
@@ -17,26 +17,26 @@ DEF_HELPER_1(cp1_putc, void, i32)
DEF_HELPER_1(clz, i32, i32)
DEF_HELPER_1(clo, i32, i32)
-DEF_HELPER_1(exception, void, i32)
+DEF_HELPER_2(exception, void, env, i32)
-DEF_HELPER_2(asr_write, void, i32, i32)
-DEF_HELPER_0(asr_read, i32)
+DEF_HELPER_3(asr_write, void, env, i32, i32)
+DEF_HELPER_1(asr_read, i32, env)
-DEF_HELPER_1(get_user_reg, i32, i32)
-DEF_HELPER_2(set_user_reg, void, i32, i32)
+DEF_HELPER_2(get_user_reg, i32, env, i32)
+DEF_HELPER_3(set_user_reg, void, env, i32, i32)
-DEF_HELPER_2(add_cc, i32, i32, i32)
-DEF_HELPER_2(adc_cc, i32, i32, i32)
-DEF_HELPER_2(sub_cc, i32, i32, i32)
-DEF_HELPER_2(sbc_cc, i32, i32, i32)
+DEF_HELPER_3(add_cc, i32, env, i32, i32)
+DEF_HELPER_3(adc_cc, i32, env, i32, i32)
+DEF_HELPER_3(sub_cc, i32, env, i32, i32)
+DEF_HELPER_3(sbc_cc, i32, env, i32, i32)
DEF_HELPER_2(shl, i32, i32, i32)
DEF_HELPER_2(shr, i32, i32, i32)
DEF_HELPER_2(sar, i32, i32, i32)
-DEF_HELPER_2(shl_cc, i32, i32, i32)
-DEF_HELPER_2(shr_cc, i32, i32, i32)
-DEF_HELPER_2(sar_cc, i32, i32, i32)
-DEF_HELPER_2(ror_cc, i32, i32, i32)
+DEF_HELPER_3(shl_cc, i32, env, i32, i32)
+DEF_HELPER_3(shr_cc, i32, env, i32, i32)
+DEF_HELPER_3(sar_cc, i32, env, i32, i32)
+DEF_HELPER_3(ror_cc, i32, env, i32, i32)
DEF_HELPER_1(ucf64_get_fpscr, i32, env)
DEF_HELPER_2(ucf64_set_fpscr, void, env, i32)
diff --git a/target-unicore32/op_helper.c b/target-unicore32/op_helper.c
index c63789d..f474d1b 100644
--- a/target-unicore32/op_helper.c
+++ b/target-unicore32/op_helper.c
@@ -9,19 +9,18 @@
* later version. See the COPYING file in the top-level directory.
*/
#include "cpu.h"
-#include "dyngen-exec.h"
#include "helper.h"
#define SIGNBIT (uint32_t)0x80000000
#define SIGNBIT64 ((uint64_t)1 << 63)
-void HELPER(exception)(uint32_t excp)
+void HELPER(exception)(CPUUniCore32State *env, uint32_t excp)
{
env->exception_index = excp;
cpu_loop_exit(env);
}
-static target_ulong asr_read(void)
+static target_ulong asr_read(CPUUniCore32State *env)
{
int ZF;
ZF = (env->ZF == 0);
@@ -29,24 +28,18 @@ static target_ulong asr_read(void)
(env->CF << 29) | ((env->VF & 0x80000000) >> 3);
}
-target_ulong cpu_asr_read(CPUUniCore32State *env1)
+target_ulong cpu_asr_read(CPUUniCore32State *env)
{
- CPUUniCore32State *saved_env;
- target_ulong ret;
-
- saved_env = env;
- env = env1;
- ret = asr_read();
- env = saved_env;
- return ret;
+ return asr_read(env);
}
-target_ulong HELPER(asr_read)(void)
+target_ulong HELPER(asr_read)(CPUUniCore32State *env)
{
- return asr_read();
+ return asr_read(env);
}
-static void asr_write(target_ulong val, target_ulong mask)
+static void asr_write(CPUUniCore32State *env, target_ulong val,
+ target_ulong mask)
{
if (mask & ASR_NZCV) {
env->ZF = (~val) & ASR_Z;
@@ -62,23 +55,19 @@ static void asr_write(target_ulong val, target_ulong mask)
env->uncached_asr = (env->uncached_asr & ~mask) | (val & mask);
}
-void cpu_asr_write(CPUUniCore32State *env1, target_ulong val, target_ulong mask)
+void cpu_asr_write(CPUUniCore32State *env, target_ulong val, target_ulong mask)
{
- CPUUniCore32State *saved_env;
-
- saved_env = env;
- env = env1;
- asr_write(val, mask);
- env = saved_env;
+ asr_write(env, val, mask);
}
-void HELPER(asr_write)(target_ulong val, target_ulong mask)
+void HELPER(asr_write)(CPUUniCore32State *env, target_ulong val,
+ target_ulong mask)
{
- asr_write(val, mask);
+ asr_write(env, val, mask);
}
/* Access to user mode registers from privileged modes. */
-uint32_t HELPER(get_user_reg)(uint32_t regno)
+uint32_t HELPER(get_user_reg)(CPUUniCore32State *env, uint32_t regno)
{
uint32_t val;
@@ -92,7 +81,7 @@ uint32_t HELPER(get_user_reg)(uint32_t regno)
return val;
}
-void HELPER(set_user_reg)(uint32_t regno, uint32_t val)
+void HELPER(set_user_reg)(CPUUniCore32State *env, uint32_t regno, uint32_t val)
{
if (regno == 29) {
env->banked_r29[0] = val;
@@ -107,7 +96,7 @@ void HELPER(set_user_reg)(uint32_t regno, uint32_t val)
The only way to do that in TCG is a conditional branch, which clobbers
all our temporaries. For now implement these as helper functions. */
-uint32_t HELPER(add_cc)(uint32_t a, uint32_t b)
+uint32_t HELPER(add_cc)(CPUUniCore32State *env, uint32_t a, uint32_t b)
{
uint32_t result;
result = a + b;
@@ -117,7 +106,7 @@ uint32_t HELPER(add_cc)(uint32_t a, uint32_t b)
return result;
}
-uint32_t HELPER(adc_cc)(uint32_t a, uint32_t b)
+uint32_t HELPER(adc_cc)(CPUUniCore32State *env, uint32_t a, uint32_t b)
{
uint32_t result;
if (!env->CF) {
@@ -132,7 +121,7 @@ uint32_t HELPER(adc_cc)(uint32_t a, uint32_t b)
return result;
}
-uint32_t HELPER(sub_cc)(uint32_t a, uint32_t b)
+uint32_t HELPER(sub_cc)(CPUUniCore32State *env, uint32_t a, uint32_t b)
{
uint32_t result;
result = a - b;
@@ -142,7 +131,7 @@ uint32_t HELPER(sub_cc)(uint32_t a, uint32_t b)
return result;
}
-uint32_t HELPER(sbc_cc)(uint32_t a, uint32_t b)
+uint32_t HELPER(sbc_cc)(CPUUniCore32State *env, uint32_t a, uint32_t b)
{
uint32_t result;
if (!env->CF) {
@@ -186,7 +175,7 @@ uint32_t HELPER(sar)(uint32_t x, uint32_t i)
return (int32_t)x >> shift;
}
-uint32_t HELPER(shl_cc)(uint32_t x, uint32_t i)
+uint32_t HELPER(shl_cc)(CPUUniCore32State *env, uint32_t x, uint32_t i)
{
int shift = i & 0xff;
if (shift >= 32) {
@@ -203,7 +192,7 @@ uint32_t HELPER(shl_cc)(uint32_t x, uint32_t i)
return x;
}
-uint32_t HELPER(shr_cc)(uint32_t x, uint32_t i)
+uint32_t HELPER(shr_cc)(CPUUniCore32State *env, uint32_t x, uint32_t i)
{
int shift = i & 0xff;
if (shift >= 32) {
@@ -220,7 +209,7 @@ uint32_t HELPER(shr_cc)(uint32_t x, uint32_t i)
return x;
}
-uint32_t HELPER(sar_cc)(uint32_t x, uint32_t i)
+uint32_t HELPER(sar_cc)(CPUUniCore32State *env, uint32_t x, uint32_t i)
{
int shift = i & 0xff;
if (shift >= 32) {
@@ -233,7 +222,7 @@ uint32_t HELPER(sar_cc)(uint32_t x, uint32_t i)
return x;
}
-uint32_t HELPER(ror_cc)(uint32_t x, uint32_t i)
+uint32_t HELPER(ror_cc)(CPUUniCore32State *env, uint32_t x, uint32_t i)
{
int shift1, shift;
shift1 = i & 0xff;
@@ -264,16 +253,13 @@ uint32_t HELPER(ror_cc)(uint32_t x, uint32_t i)
#define SHIFT 3
#include "softmmu_template.h"
-void tlb_fill(CPUUniCore32State *env1, target_ulong addr, int is_write,
- int mmu_idx, uintptr_t retaddr)
+void tlb_fill(CPUUniCore32State *env, target_ulong addr, int is_write,
+ int mmu_idx, uintptr_t retaddr)
{
TranslationBlock *tb;
- CPUUniCore32State *saved_env;
unsigned long pc;
int ret;
- saved_env = env;
- env = env1;
ret = uc32_cpu_handle_mmu_fault(env, addr, is_write, mmu_idx);
if (unlikely(ret)) {
if (retaddr) {
@@ -287,6 +273,5 @@ void tlb_fill(CPUUniCore32State *env1, target_ulong addr, int is_write,
}
cpu_loop_exit(env);
}
- env = saved_env;
}
#endif
diff --git a/target-unicore32/translate.c b/target-unicore32/translate.c
index 188bf8c..b786a6b 100644
--- a/target-unicore32/translate.c
+++ b/target-unicore32/translate.c
@@ -253,7 +253,7 @@ static void disas_ocd_insn(CPUUniCore32State *env, DisasContext *s,
static inline void gen_set_asr(TCGv var, uint32_t mask)
{
TCGv tmp_mask = tcg_const_i32(mask);
- gen_helper_asr_write(var, tmp_mask);
+ gen_helper_asr_write(cpu_env, var, tmp_mask);
tcg_temp_free_i32(tmp_mask);
}
/* Set NZCV flags from the high 4 bits of var. */
@@ -263,7 +263,7 @@ static void gen_exception(int excp)
{
TCGv tmp = new_tmp();
tcg_gen_movi_i32(tmp, excp);
- gen_helper_exception(tmp);
+ gen_helper_exception(cpu_env, tmp);
dead_tmp(tmp);
}
@@ -416,16 +416,16 @@ static inline void gen_uc32_shift_reg(TCGv var, int shiftop,
if (flags) {
switch (shiftop) {
case 0:
- gen_helper_shl_cc(var, var, shift);
+ gen_helper_shl_cc(var, cpu_env, var, shift);
break;
case 1:
- gen_helper_shr_cc(var, var, shift);
+ gen_helper_shr_cc(var, cpu_env, var, shift);
break;
case 2:
- gen_helper_sar_cc(var, var, shift);
+ gen_helper_sar_cc(var, cpu_env, var, shift);
break;
case 3:
- gen_helper_ror_cc(var, var, shift);
+ gen_helper_ror_cc(var, cpu_env, var, shift);
break;
}
} else {
@@ -1323,11 +1323,11 @@ static void do_datap(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
if (IS_USER(s)) {
ILLEGAL;
}
- gen_helper_sub_cc(tmp, tmp, tmp2);
+ gen_helper_sub_cc(tmp, cpu_env, tmp, tmp2);
gen_exception_return(s, tmp);
} else {
if (UCOP_SET_S) {
- gen_helper_sub_cc(tmp, tmp, tmp2);
+ gen_helper_sub_cc(tmp, cpu_env, tmp, tmp2);
} else {
tcg_gen_sub_i32(tmp, tmp, tmp2);
}
@@ -1336,7 +1336,7 @@ static void do_datap(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
break;
case 0x03:
if (UCOP_SET_S) {
- gen_helper_sub_cc(tmp, tmp2, tmp);
+ gen_helper_sub_cc(tmp, cpu_env, tmp2, tmp);
} else {
tcg_gen_sub_i32(tmp, tmp2, tmp);
}
@@ -1344,7 +1344,7 @@ static void do_datap(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
break;
case 0x04:
if (UCOP_SET_S) {
- gen_helper_add_cc(tmp, tmp, tmp2);
+ gen_helper_add_cc(tmp, cpu_env, tmp, tmp2);
} else {
tcg_gen_add_i32(tmp, tmp, tmp2);
}
@@ -1352,7 +1352,7 @@ static void do_datap(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
break;
case 0x05:
if (UCOP_SET_S) {
- gen_helper_adc_cc(tmp, tmp, tmp2);
+ gen_helper_adc_cc(tmp, cpu_env, tmp, tmp2);
} else {
gen_add_carry(tmp, tmp, tmp2);
}
@@ -1360,7 +1360,7 @@ static void do_datap(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
break;
case 0x06:
if (UCOP_SET_S) {
- gen_helper_sbc_cc(tmp, tmp, tmp2);
+ gen_helper_sbc_cc(tmp, cpu_env, tmp, tmp2);
} else {
gen_sub_carry(tmp, tmp, tmp2);
}
@@ -1368,7 +1368,7 @@ static void do_datap(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
break;
case 0x07:
if (UCOP_SET_S) {
- gen_helper_sbc_cc(tmp, tmp2, tmp);
+ gen_helper_sbc_cc(tmp, cpu_env, tmp2, tmp);
} else {
gen_sub_carry(tmp, tmp2, tmp);
}
@@ -1390,13 +1390,13 @@ static void do_datap(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
break;
case 0x0a:
if (UCOP_SET_S) {
- gen_helper_sub_cc(tmp, tmp, tmp2);
+ gen_helper_sub_cc(tmp, cpu_env, tmp, tmp2);
}
dead_tmp(tmp);
break;
case 0x0b:
if (UCOP_SET_S) {
- gen_helper_add_cc(tmp, tmp, tmp2);
+ gen_helper_add_cc(tmp, cpu_env, tmp, tmp2);
}
dead_tmp(tmp);
break;
@@ -1536,7 +1536,7 @@ static void do_misc(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
tmp = load_cpu_field(bsr);
} else {
tmp = new_tmp();
- gen_helper_asr_read(tmp);
+ gen_helper_asr_read(tmp, cpu_env);
}
store_reg(s, UCOP_REG_D, tmp);
return;
@@ -1760,7 +1760,7 @@ static void do_ldst_m(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
gen_bx(s, tmp);
} else if (user) {
tmp2 = tcg_const_i32(reg);
- gen_helper_set_user_reg(tmp2, tmp);
+ gen_helper_set_user_reg(cpu_env, tmp2, tmp);
tcg_temp_free_i32(tmp2);
dead_tmp(tmp);
} else if (reg == UCOP_REG_N) {
@@ -1778,7 +1778,7 @@ static void do_ldst_m(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
} else if (user) {
tmp = new_tmp();
tmp2 = tcg_const_i32(reg);
- gen_helper_get_user_reg(tmp, tmp2);
+ gen_helper_get_user_reg(tmp, cpu_env, tmp2);
tcg_temp_free_i32(tmp2);
} else {
tmp = load_reg(s, reg);
@@ -1861,7 +1861,7 @@ static void disas_uc32_insn(CPUUniCore32State *env, DisasContext *s)
{
unsigned int insn;
- insn = ldl_code(s->pc);
+ insn = cpu_ldl_code(env, s->pc);
s->pc += 4;
/* UniCore instructions class:
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