The "leon3_cache_control_int" (op_helper.c) function is called within leon3.c which leads to segfault error with the global "env".
Now cache control is a CPU feature and everything is handled in op_helper.c. Signed-off-by: Fabien Chouteau <chout...@adacore.com> --- hw/leon3.c | 1 - target-sparc/cpu.h | 4 ++-- target-sparc/helper.c | 2 +- target-sparc/op_helper.c | 23 +++++++++++++++++------ 4 files changed, 20 insertions(+), 10 deletions(-) diff --git a/hw/leon3.c b/hw/leon3.c index 69d8f3b..aaf26fd 100644 --- a/hw/leon3.c +++ b/hw/leon3.c @@ -59,7 +59,6 @@ static void main_cpu_reset(void *opaque) static void leon3_irq_ack(void *irq_manager, int intno) { grlib_irqmp_ack((DeviceState *)irq_manager, intno); - leon3_cache_control_int(); } static void leon3_set_pil_in(void *opaque, uint32_t pil_in) diff --git a/target-sparc/cpu.h b/target-sparc/cpu.h index 6f5990b..8141b32 100644 --- a/target-sparc/cpu.h +++ b/target-sparc/cpu.h @@ -268,6 +268,8 @@ typedef struct sparc_def_t { #define CPU_FEATURE_GL (1 << 13) #define CPU_FEATURE_TA0_SHUTDOWN (1 << 14) /* Shutdown on "ta 0x0" */ #define CPU_FEATURE_ASR17 (1 << 15) +#define CPU_FEATURE_CACHE_CTRL (1 << 16) + #ifndef TARGET_SPARC64 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | \ CPU_FEATURE_MUL | CPU_FEATURE_DIV | \ @@ -477,8 +479,6 @@ int cpu_cwp_inc(CPUState *env1, int cwp); int cpu_cwp_dec(CPUState *env1, int cwp); void cpu_set_cwp(CPUState *env1, int new_cwp); -void leon3_cache_control_int(void); - /* sun4m.c, sun4u.c */ void cpu_check_irqs(CPUSPARCState *env); diff --git a/target-sparc/helper.c b/target-sparc/helper.c index 2f3d1e6..b2d4d70 100644 --- a/target-sparc/helper.c +++ b/target-sparc/helper.c @@ -1289,7 +1289,7 @@ static const sparc_def_t sparc_defs[] = { .mmu_trcr_mask = 0xffffffff, .nwindows = 8, .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_TA0_SHUTDOWN | - CPU_FEATURE_ASR17, + CPU_FEATURE_ASR17 | CPU_FEATURE_CACHE_CTRL, }, #endif }; diff --git a/target-sparc/op_helper.c b/target-sparc/op_helper.c index d3e1b63..698c159 100644 --- a/target-sparc/op_helper.c +++ b/target-sparc/op_helper.c @@ -1653,7 +1653,7 @@ static void dump_asi(const char *txt, target_ulong addr, int asi, int size, /* Leon3 cache control */ -void leon3_cache_control_int(void) +static void leon3_cache_control_int(void) { uint32_t state = 0; @@ -1741,7 +1741,7 @@ static uint64_t leon3_cache_control_ld(target_ulong addr, int size) DPRINTF_CACHE_CONTROL("read unknown register %08x\n", addr); break; }; - DPRINTF_CACHE_CONTROL("st addr:%08x, ret:%" PRIx64 ", size:%d\n", + DPRINTF_CACHE_CONTROL("ld addr:%08x, ret:0x%" PRIx64 ", size:%d\n", addr, ret, size); return ret; } @@ -1760,7 +1760,9 @@ uint64_t helper_ld_asi(target_ulong addr, int asi, int size, int sign) case 0x00: /* Leon3 Cache Control */ case 0x08: /* Leon3 Instruction Cache config */ case 0x0C: /* Leon3 Date Cache config */ - ret = leon3_cache_control_ld(addr, size); + if (env->def->features & CPU_FEATURE_CACHE_CTRL) { + ret = leon3_cache_control_ld(addr, size); + } break; case 0x01c00a00: /* MXCC control register */ if (size == 8) @@ -1994,7 +1996,9 @@ void helper_st_asi(target_ulong addr, uint64_t val, int asi, int size) case 0x00: /* Leon3 Cache Control */ case 0x08: /* Leon3 Instruction Cache config */ case 0x0C: /* Leon3 Date Cache config */ - leon3_cache_control_st(addr, val, size); + if (env->def->features & CPU_FEATURE_CACHE_CTRL) { + leon3_cache_control_st(addr, val, size); + } break; case 0x01c00000: /* MXCC stream data register 0 */ @@ -4325,9 +4329,16 @@ void do_interrupt(CPUState *env) #if !defined(CONFIG_USER_ONLY) /* IRQ acknowledgment */ - if ((intno & ~15) == TT_EXTINT && env->qemu_irq_ack != NULL) { - env->qemu_irq_ack(env->irq_manager, intno); + if ((intno & ~15) == TT_EXTINT) { + if (env->qemu_irq_ack != NULL) { + env->qemu_irq_ack(env->irq_manager, intno); + } + + if (env->def->features & CPU_FEATURE_CACHE_CTRL) { + leon3_cache_control_int(); + } } + #endif } #endif -- 1.7.1