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authorBlue Swirl <blauwirbel@gmail.com>2012-09-02 08:39:22 +0000
committerBlue Swirl <blauwirbel@gmail.com>2012-09-15 17:44:33 +0000
commit64254eba53198fd14b52128b3f0026000d2dc4ab (patch)
tree35fd4a6edfe7975d04888aca27357339456dc585 /target-microblaze/op_helper.c
parentd31dd73e48561de5f9d718febfb44224f7aab818 (diff)
downloadqemu-64254eba53198fd14b52128b3f0026000d2dc4ab.zip
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target-microblaze: switch to AREG0 free mode
Add an explicit CPUState parameter instead of relying on AREG0 and switch to AREG0 free mode. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'target-microblaze/op_helper.c')
-rw-r--r--target-microblaze/op_helper.c115
1 files changed, 52 insertions, 63 deletions
diff --git a/target-microblaze/op_helper.c b/target-microblaze/op_helper.c
index 3b1f072..c9789f4 100644
--- a/target-microblaze/op_helper.c
+++ b/target-microblaze/op_helper.c
@@ -20,7 +20,6 @@
#include <assert.h>
#include "cpu.h"
-#include "dyngen-exec.h"
#include "helper.h"
#include "host-utils.h"
@@ -42,17 +41,12 @@
/* Try to fill the TLB and return an exception if error. If retaddr is
NULL, it means that the function was called in C code (i.e. not
from generated code or from helper.c) */
-/* XXX: fix it to restore all registers */
-void tlb_fill(CPUMBState *env1, target_ulong addr, int is_write, int mmu_idx,
+void tlb_fill(CPUMBState *env, target_ulong addr, int is_write, int mmu_idx,
uintptr_t retaddr)
{
TranslationBlock *tb;
- CPUMBState *saved_env;
int ret;
- saved_env = env;
- env = env1;
-
ret = cpu_mb_handle_mmu_fault(env, addr, is_write, mmu_idx);
if (unlikely(ret)) {
if (retaddr) {
@@ -66,7 +60,6 @@ void tlb_fill(CPUMBState *env1, target_ulong addr, int is_write, int mmu_idx,
}
cpu_loop_exit(env);
}
- env = saved_env;
}
#endif
@@ -105,13 +98,13 @@ uint32_t helper_get(uint32_t id, uint32_t ctrl)
return 0xdead0000 | id;
}
-void helper_raise_exception(uint32_t index)
+void helper_raise_exception(CPUMBState *env, uint32_t index)
{
env->exception_index = index;
cpu_loop_exit(env);
}
-void helper_debug(void)
+void helper_debug(CPUMBState *env)
{
int i;
@@ -176,7 +169,7 @@ uint32_t helper_carry(uint32_t a, uint32_t b, uint32_t cf)
return ncf;
}
-static inline int div_prepare(uint32_t a, uint32_t b)
+static inline int div_prepare(CPUMBState *env, uint32_t a, uint32_t b)
{
if (b == 0) {
env->sregs[SR_MSR] |= MSR_DZ;
@@ -184,7 +177,7 @@ static inline int div_prepare(uint32_t a, uint32_t b)
if ((env->sregs[SR_MSR] & MSR_EE)
&& !(env->pvr.regs[2] & PVR2_DIV_ZERO_EXC_MASK)) {
env->sregs[SR_ESR] = ESR_EC_DIVZERO;
- helper_raise_exception(EXCP_HW_EXCP);
+ helper_raise_exception(env, EXCP_HW_EXCP);
}
return 0;
}
@@ -192,28 +185,30 @@ static inline int div_prepare(uint32_t a, uint32_t b)
return 1;
}
-uint32_t helper_divs(uint32_t a, uint32_t b)
+uint32_t helper_divs(CPUMBState *env, uint32_t a, uint32_t b)
{
- if (!div_prepare(a, b))
+ if (!div_prepare(env, a, b)) {
return 0;
+ }
return (int32_t)a / (int32_t)b;
}
-uint32_t helper_divu(uint32_t a, uint32_t b)
+uint32_t helper_divu(CPUMBState *env, uint32_t a, uint32_t b)
{
- if (!div_prepare(a, b))
+ if (!div_prepare(env, a, b)) {
return 0;
+ }
return a / b;
}
/* raise FPU exception. */
-static void raise_fpu_exception(void)
+static void raise_fpu_exception(CPUMBState *env)
{
env->sregs[SR_ESR] = ESR_EC_FPU;
- helper_raise_exception(EXCP_HW_EXCP);
+ helper_raise_exception(env, EXCP_HW_EXCP);
}
-static void update_fpu_flags(int flags)
+static void update_fpu_flags(CPUMBState *env, int flags)
{
int raise = 0;
@@ -236,11 +231,11 @@ static void update_fpu_flags(int flags)
if (raise
&& (env->pvr.regs[2] & PVR2_FPU_EXC_MASK)
&& (env->sregs[SR_MSR] & MSR_EE)) {
- raise_fpu_exception();
+ raise_fpu_exception(env);
}
}
-uint32_t helper_fadd(uint32_t a, uint32_t b)
+uint32_t helper_fadd(CPUMBState *env, uint32_t a, uint32_t b)
{
CPU_FloatU fd, fa, fb;
int flags;
@@ -251,11 +246,11 @@ uint32_t helper_fadd(uint32_t a, uint32_t b)
fd.f = float32_add(fa.f, fb.f, &env->fp_status);
flags = get_float_exception_flags(&env->fp_status);
- update_fpu_flags(flags);
+ update_fpu_flags(env, flags);
return fd.l;
}
-uint32_t helper_frsub(uint32_t a, uint32_t b)
+uint32_t helper_frsub(CPUMBState *env, uint32_t a, uint32_t b)
{
CPU_FloatU fd, fa, fb;
int flags;
@@ -265,11 +260,11 @@ uint32_t helper_frsub(uint32_t a, uint32_t b)
fb.l = b;
fd.f = float32_sub(fb.f, fa.f, &env->fp_status);
flags = get_float_exception_flags(&env->fp_status);
- update_fpu_flags(flags);
+ update_fpu_flags(env, flags);
return fd.l;
}
-uint32_t helper_fmul(uint32_t a, uint32_t b)
+uint32_t helper_fmul(CPUMBState *env, uint32_t a, uint32_t b)
{
CPU_FloatU fd, fa, fb;
int flags;
@@ -279,12 +274,12 @@ uint32_t helper_fmul(uint32_t a, uint32_t b)
fb.l = b;
fd.f = float32_mul(fa.f, fb.f, &env->fp_status);
flags = get_float_exception_flags(&env->fp_status);
- update_fpu_flags(flags);
+ update_fpu_flags(env, flags);
return fd.l;
}
-uint32_t helper_fdiv(uint32_t a, uint32_t b)
+uint32_t helper_fdiv(CPUMBState *env, uint32_t a, uint32_t b)
{
CPU_FloatU fd, fa, fb;
int flags;
@@ -294,12 +289,12 @@ uint32_t helper_fdiv(uint32_t a, uint32_t b)
fb.l = b;
fd.f = float32_div(fb.f, fa.f, &env->fp_status);
flags = get_float_exception_flags(&env->fp_status);
- update_fpu_flags(flags);
+ update_fpu_flags(env, flags);
return fd.l;
}
-uint32_t helper_fcmp_un(uint32_t a, uint32_t b)
+uint32_t helper_fcmp_un(CPUMBState *env, uint32_t a, uint32_t b)
{
CPU_FloatU fa, fb;
uint32_t r = 0;
@@ -308,7 +303,7 @@ uint32_t helper_fcmp_un(uint32_t a, uint32_t b)
fb.l = b;
if (float32_is_signaling_nan(fa.f) || float32_is_signaling_nan(fb.f)) {
- update_fpu_flags(float_flag_invalid);
+ update_fpu_flags(env, float_flag_invalid);
r = 1;
}
@@ -319,7 +314,7 @@ uint32_t helper_fcmp_un(uint32_t a, uint32_t b)
return r;
}
-uint32_t helper_fcmp_lt(uint32_t a, uint32_t b)
+uint32_t helper_fcmp_lt(CPUMBState *env, uint32_t a, uint32_t b)
{
CPU_FloatU fa, fb;
int r;
@@ -330,12 +325,12 @@ uint32_t helper_fcmp_lt(uint32_t a, uint32_t b)
fb.l = b;
r = float32_lt(fb.f, fa.f, &env->fp_status);
flags = get_float_exception_flags(&env->fp_status);
- update_fpu_flags(flags & float_flag_invalid);
+ update_fpu_flags(env, flags & float_flag_invalid);
return r;
}
-uint32_t helper_fcmp_eq(uint32_t a, uint32_t b)
+uint32_t helper_fcmp_eq(CPUMBState *env, uint32_t a, uint32_t b)
{
CPU_FloatU fa, fb;
int flags;
@@ -346,12 +341,12 @@ uint32_t helper_fcmp_eq(uint32_t a, uint32_t b)
fb.l = b;
r = float32_eq_quiet(fa.f, fb.f, &env->fp_status);
flags = get_float_exception_flags(&env->fp_status);
- update_fpu_flags(flags & float_flag_invalid);
+ update_fpu_flags(env, flags & float_flag_invalid);
return r;
}
-uint32_t helper_fcmp_le(uint32_t a, uint32_t b)
+uint32_t helper_fcmp_le(CPUMBState *env, uint32_t a, uint32_t b)
{
CPU_FloatU fa, fb;
int flags;
@@ -362,13 +357,13 @@ uint32_t helper_fcmp_le(uint32_t a, uint32_t b)
set_float_exception_flags(0, &env->fp_status);
r = float32_le(fa.f, fb.f, &env->fp_status);
flags = get_float_exception_flags(&env->fp_status);
- update_fpu_flags(flags & float_flag_invalid);
+ update_fpu_flags(env, flags & float_flag_invalid);
return r;
}
-uint32_t helper_fcmp_gt(uint32_t a, uint32_t b)
+uint32_t helper_fcmp_gt(CPUMBState *env, uint32_t a, uint32_t b)
{
CPU_FloatU fa, fb;
int flags, r;
@@ -378,11 +373,11 @@ uint32_t helper_fcmp_gt(uint32_t a, uint32_t b)
set_float_exception_flags(0, &env->fp_status);
r = float32_lt(fa.f, fb.f, &env->fp_status);
flags = get_float_exception_flags(&env->fp_status);
- update_fpu_flags(flags & float_flag_invalid);
+ update_fpu_flags(env, flags & float_flag_invalid);
return r;
}
-uint32_t helper_fcmp_ne(uint32_t a, uint32_t b)
+uint32_t helper_fcmp_ne(CPUMBState *env, uint32_t a, uint32_t b)
{
CPU_FloatU fa, fb;
int flags, r;
@@ -392,12 +387,12 @@ uint32_t helper_fcmp_ne(uint32_t a, uint32_t b)
set_float_exception_flags(0, &env->fp_status);
r = !float32_eq_quiet(fa.f, fb.f, &env->fp_status);
flags = get_float_exception_flags(&env->fp_status);
- update_fpu_flags(flags & float_flag_invalid);
+ update_fpu_flags(env, flags & float_flag_invalid);
return r;
}
-uint32_t helper_fcmp_ge(uint32_t a, uint32_t b)
+uint32_t helper_fcmp_ge(CPUMBState *env, uint32_t a, uint32_t b)
{
CPU_FloatU fa, fb;
int flags, r;
@@ -407,12 +402,12 @@ uint32_t helper_fcmp_ge(uint32_t a, uint32_t b)
set_float_exception_flags(0, &env->fp_status);
r = !float32_lt(fa.f, fb.f, &env->fp_status);
flags = get_float_exception_flags(&env->fp_status);
- update_fpu_flags(flags & float_flag_invalid);
+ update_fpu_flags(env, flags & float_flag_invalid);
return r;
}
-uint32_t helper_flt(uint32_t a)
+uint32_t helper_flt(CPUMBState *env, uint32_t a)
{
CPU_FloatU fd, fa;
@@ -421,7 +416,7 @@ uint32_t helper_flt(uint32_t a)
return fd.l;
}
-uint32_t helper_fint(uint32_t a)
+uint32_t helper_fint(CPUMBState *env, uint32_t a)
{
CPU_FloatU fa;
uint32_t r;
@@ -431,12 +426,12 @@ uint32_t helper_fint(uint32_t a)
fa.l = a;
r = float32_to_int32(fa.f, &env->fp_status);
flags = get_float_exception_flags(&env->fp_status);
- update_fpu_flags(flags);
+ update_fpu_flags(env, flags);
return r;
}
-uint32_t helper_fsqrt(uint32_t a)
+uint32_t helper_fsqrt(CPUMBState *env, uint32_t a)
{
CPU_FloatU fd, fa;
int flags;
@@ -445,7 +440,7 @@ uint32_t helper_fsqrt(uint32_t a)
fa.l = a;
fd.l = float32_sqrt(fa.f, &env->fp_status);
flags = get_float_exception_flags(&env->fp_status);
- update_fpu_flags(flags);
+ update_fpu_flags(env, flags);
return fd.l;
}
@@ -463,7 +458,8 @@ uint32_t helper_pcmpbf(uint32_t a, uint32_t b)
return 0;
}
-void helper_memalign(uint32_t addr, uint32_t dr, uint32_t wr, uint32_t mask)
+void helper_memalign(CPUMBState *env, uint32_t addr, uint32_t dr, uint32_t wr,
+ uint32_t mask)
{
if (addr & mask) {
qemu_log_mask(CPU_LOG_INT,
@@ -478,45 +474,39 @@ void helper_memalign(uint32_t addr, uint32_t dr, uint32_t wr, uint32_t mask)
if (!(env->sregs[SR_MSR] & MSR_EE)) {
return;
}
- helper_raise_exception(EXCP_HW_EXCP);
+ helper_raise_exception(env, EXCP_HW_EXCP);
}
}
-void helper_stackprot(uint32_t addr)
+void helper_stackprot(CPUMBState *env, uint32_t addr)
{
if (addr < env->slr || addr > env->shr) {
qemu_log("Stack protector violation at %x %x %x\n",
addr, env->slr, env->shr);
env->sregs[SR_EAR] = addr;
env->sregs[SR_ESR] = ESR_EC_STACKPROT;
- helper_raise_exception(EXCP_HW_EXCP);
+ helper_raise_exception(env, EXCP_HW_EXCP);
}
}
#if !defined(CONFIG_USER_ONLY)
/* Writes/reads to the MMU's special regs end up here. */
-uint32_t helper_mmu_read(uint32_t rn)
+uint32_t helper_mmu_read(CPUMBState *env, uint32_t rn)
{
return mmu_read(env, rn);
}
-void helper_mmu_write(uint32_t rn, uint32_t v)
+void helper_mmu_write(CPUMBState *env, uint32_t rn, uint32_t v)
{
mmu_write(env, rn, v);
}
-void cpu_unassigned_access(CPUMBState *env1, target_phys_addr_t addr,
+void cpu_unassigned_access(CPUMBState *env, target_phys_addr_t addr,
int is_write, int is_exec, int is_asi, int size)
{
- CPUMBState *saved_env;
-
- saved_env = env;
- env = env1;
-
qemu_log_mask(CPU_LOG_INT, "Unassigned " TARGET_FMT_plx " wr=%d exe=%d\n",
addr, is_write, is_exec);
if (!(env->sregs[SR_MSR] & MSR_EE)) {
- env = saved_env;
return;
}
@@ -524,14 +514,13 @@ void cpu_unassigned_access(CPUMBState *env1, target_phys_addr_t addr,
if (is_exec) {
if ((env->pvr.regs[2] & PVR2_IOPB_BUS_EXC_MASK)) {
env->sregs[SR_ESR] = ESR_EC_INSN_BUS;
- helper_raise_exception(EXCP_HW_EXCP);
+ helper_raise_exception(env, EXCP_HW_EXCP);
}
} else {
if ((env->pvr.regs[2] & PVR2_DOPB_BUS_EXC_MASK)) {
env->sregs[SR_ESR] = ESR_EC_DATA_BUS;
- helper_raise_exception(EXCP_HW_EXCP);
+ helper_raise_exception(env, EXCP_HW_EXCP);
}
}
- env = saved_env;
}
#endif