haraldwolff/qemu-patch-raspberry4
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target-ppc: rework exception code

Browse source 
... also remove two warnings.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5989 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2008-12-11 22:42:14 +00:00
parent 2a3ec4b5b3
commit e06fcd754e
7 changed files with 288 additions and 304 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
cpu-exec.c
View file

@ -918,7 +918,7 @@ static inline int handle_cpu_signal(unsigned long pc, unsigned long address,
/* we restore the process signal mask as the sigreturn should
do it (XXX: use sigsetjmp) */
sigprocmask(SIG_SETMASK, old_set, NULL);
raise_exception_err(env, env->exception_index, env->error_code);
cpu_loop_exit();
} else {
/* activate soft MMU for this block */
cpu_resume_from_signal(env, puc);

3
target-ppc/exec.h
View file

@ -38,9 +38,6 @@ register struct CPUPPCState *env asm(AREG0);
#include "softmmu_exec.h"
#endif /* !defined(CONFIG_USER_ONLY) */
void raise_exception_err (CPUState *env, int exception, int error_code);
void raise_exception (CPUState *env, int exception);
int get_physical_address (CPUState *env, mmu_ctx_t *ctx, target_ulong vaddr,
int rw, int access_type);

18
target-ppc/helper.c
View file

@ -39,24 +39,6 @@
//#define DEBUG_EXCEPTIONS
//#define FLUSH_ALL_TLBS
/*****************************************************************************/
/* Exceptions processing */
void raise_exception_err (CPUState *env, int exception, int error_code)
{
#if 0
printf("Raise exception %3x code : %d\n", exception, error_code);
#endif
env->exception_index = exception;
env->error_code = error_code;
cpu_loop_exit();
}
void raise_exception (CPUState *env, int exception)
{
helper_raise_exception_err(exception, 0);
}
/*****************************************************************************/
/* PowerPC MMU emulation */

2
target-ppc/helper.h
View file

@ -1,7 +1,7 @@
#include "def-helper.h"
DEF_HELPER_2(raise_exception_err, void, i32, i32)
DEF_HELPER_0(raise_debug, void)
DEF_HELPER_1(raise_exception, void, i32)
DEF_HELPER_3(tw, void, tl, tl, i32)
#if defined(TARGET_PPC64)
DEF_HELPER_3(td, void, tl, tl, i32)

51
target-ppc/op_helper.c
View file

@ -32,12 +32,17 @@
void helper_raise_exception_err (uint32_t exception, uint32_t error_code)
{
raise_exception_err(env, exception, error_code);
#if 0
printf("Raise exception %3x code : %d\n", exception, error_code);
#endif
env->exception_index = exception;
env->error_code = error_code;
cpu_loop_exit();
}
void helper_raise_debug (void)
void helper_raise_exception (uint32_t exception)
{
raise_exception(env, EXCP_DEBUG);
helper_raise_exception_err(exception, 0);
}
/*****************************************************************************/
@ -315,9 +320,9 @@ void helper_lswx(target_ulong addr, uint32_t reg, uint32_t ra, uint32_t rb)
if (likely(xer_bc != 0)) {
if (unlikely((ra != 0 && reg < ra && (reg + xer_bc) > ra) ||
(reg < rb && (reg + xer_bc) > rb))) {
raise_exception_err(env, POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_INVAL |
POWERPC_EXCP_INVAL_LSWX);
helper_raise_exception_err(POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_INVAL |
POWERPC_EXCP_INVAL_LSWX);
} else {
helper_lsw(addr, xer_bc, reg);
}
@ -738,7 +743,7 @@ static always_inline uint64_t fload_invalid_op_excp (int op)
/* Update the floating-point enabled exception summary */
env->fpscr |= 1 << FPSCR_FEX;
if (msr_fe0 != 0 || msr_fe1 != 0)
raise_exception_err(env, POWERPC_EXCP_PROGRAM, POWERPC_EXCP_FP | op);
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, POWERPC_EXCP_FP | op);
}
return ret;
}
@ -753,8 +758,8 @@ static always_inline uint64_t float_zero_divide_excp (uint64_t arg1, uint64_t ar
/* Update the floating-point enabled exception summary */
env->fpscr |= 1 << FPSCR_FEX;
if (msr_fe0 != 0 || msr_fe1 != 0) {
raise_exception_err(env, POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX);
helper_raise_exception_err(POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX);
}
} else {
/* Set the result to infinity */
@ -994,7 +999,7 @@ void helper_float_check_status (void)
(env->error_code & POWERPC_EXCP_FP)) {
/* Differred floating-point exception after target FPR update */
if (msr_fe0 != 0 || msr_fe1 != 0)
raise_exception_err(env, env->exception_index, env->error_code);
helper_raise_exception_err(env->exception_index, env->error_code);
} else if (env->fp_status.float_exception_flags & float_flag_overflow) {
float_overflow_excp();
} else if (env->fp_status.float_exception_flags & float_flag_underflow) {
@ -1007,7 +1012,7 @@ void helper_float_check_status (void)
(env->error_code & POWERPC_EXCP_FP)) {
/* Differred floating-point exception after target FPR update */
if (msr_fe0 != 0 || msr_fe1 != 0)
raise_exception_err(env, env->exception_index, env->error_code);
helper_raise_exception_err(env->exception_index, env->error_code);
}
#endif
}
@ -1660,7 +1665,7 @@ void helper_store_msr (target_ulong val)
val = hreg_store_msr(env, val, 0);
if (val != 0) {
env->interrupt_request |= CPU_INTERRUPT_EXITTB;
raise_exception(env, val);
helper_raise_exception(val);
}
}
@ -1723,7 +1728,7 @@ void helper_tw (target_ulong arg1, target_ulong arg2, uint32_t flags)
((int32_t)arg1 == (int32_t)arg2 && (flags & 0x04)) ||
((uint32_t)arg1 < (uint32_t)arg2 && (flags & 0x02)) ||
((uint32_t)arg1 > (uint32_t)arg2 && (flags & 0x01))))) {
raise_exception_err(env, POWERPC_EXCP_PROGRAM, POWERPC_EXCP_TRAP);
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, POWERPC_EXCP_TRAP);
}
}
@ -1735,7 +1740,7 @@ void helper_td (target_ulong arg1, target_ulong arg2, uint32_t flags)
((int64_t)arg1 == (int64_t)arg2 && (flags & 0x04)) ||
((uint64_t)arg1 < (uint64_t)arg2 && (flags & 0x02)) ||
((uint64_t)arg1 > (uint64_t)arg2 && (flags & 0x01)))))
raise_exception_err(env, POWERPC_EXCP_PROGRAM, POWERPC_EXCP_TRAP);
helper_raise_exception_err(POWERPC_EXCP_PROGRAM, POWERPC_EXCP_TRAP);
}
#endif
@ -1902,14 +1907,14 @@ target_ulong helper_load_dcr (target_ulong dcrn)
if (loglevel != 0) {
fprintf(logfile, "No DCR environment\n");
}
raise_exception_err(env, POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL);
helper_raise_exception_err(POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL);
} else if (unlikely(ppc_dcr_read(env->dcr_env, dcrn, &val) != 0)) {
if (loglevel != 0) {
fprintf(logfile, "DCR read error %d %03x\n", (int)dcrn, (int)dcrn);
}
raise_exception_err(env, POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG);
helper_raise_exception_err(POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG);
}
return val;
}
@ -1920,14 +1925,14 @@ void helper_store_dcr (target_ulong dcrn, target_ulong val)
if (loglevel != 0) {
fprintf(logfile, "No DCR environment\n");
}
raise_exception_err(env, POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL);
helper_raise_exception_err(POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL);
} else if (unlikely(ppc_dcr_write(env->dcr_env, dcrn, val) != 0)) {
if (loglevel != 0) {
fprintf(logfile, "DCR write error %d %03x\n", (int)dcrn, (int)dcrn);
}
raise_exception_err(env, POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG);
helper_raise_exception_err(POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG);
}
}
@ -2671,7 +2676,7 @@ void tlb_fill (target_ulong addr, int is_write, int mmu_idx, void *retaddr)
cpu_restore_state(tb, env, pc, NULL);
}
}
raise_exception_err(env, env->exception_index, env->error_code);
helper_raise_exception_err(env->exception_index, env->error_code);
}
env = saved_env;
}

510
target-ppc/translate.c
View file

File diff suppressed because it is too large Load diff

6
target-ppc/translate_init.c
View file

@ -347,7 +347,7 @@ static void spr_write_hid0_601 (void *opaque, int sprn, int gprn)
gen_helper_store_hid0_601(cpu_gpr[gprn]);
/* Must stop the translation as endianness may have changed */
GEN_STOP(ctx);
gen_stop_exception(ctx);
}
#endif
@ -391,7 +391,7 @@ static void spr_write_40x_dbcr0 (void *opaque, int sprn, int gprn)
gen_helper_store_40x_dbcr0(cpu_gpr[gprn]);
/* We must stop translation as we may have rebooted */
GEN_STOP(ctx);
gen_stop_exception(ctx);
}
static void spr_write_40x_sler (void *opaque, int sprn, int gprn)
@ -466,7 +466,7 @@ static void spr_write_excp_vector (void *opaque, int sprn, int gprn)
} else {
printf("Trying to write an unknown exception vector %d %03x\n",
sprn, sprn);
GEN_EXCP_PRIVREG(ctx);
gen_inval_exception(ctx, POWERPC_EXCP_PRIV_REG);
}
}
#endif