diff options
| author | Max Filippov <jcmvbkbc@gmail.com> | 2013-02-17 16:38:09 +0400 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2017-01-15 13:01:55 -0800 |
| commit | 17ab14acd488289d2f85ad6212b212c21f050b3d (patch) | |
| tree | a7d97ebfe90da6e529dcebc5099aea32d728ab51 /target/xtensa | |
| parent | a470b33259bf82ef2336bfcd5d07640562d3f63b (diff) | |
target/xtensa: add static vectors selection
Xtensa cores may have two distinct addresses for the static vectors
group. Provide a function to select one of them.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'target/xtensa')
| -rw-r--r-- | target/xtensa/cpu.c | 2 | ||||
| -rw-r--r-- | target/xtensa/cpu.h | 10 | ||||
| -rw-r--r-- | target/xtensa/overlay_tool.h | 11 |
3 files changed, 20 insertions, 3 deletions
diff --git a/target/xtensa/cpu.c b/target/xtensa/cpu.c index e8e9f9175b..09b53c76d4 100644 --- a/target/xtensa/cpu.c +++ b/target/xtensa/cpu.c @@ -60,7 +60,7 @@ static void xtensa_cpu_reset(CPUState *s) xcc->parent_reset(s); env->exception_taken = 0; - env->pc = env->config->exception_vector[EXC_RESET]; + env->pc = env->config->exception_vector[EXC_RESET0 + env->static_vectors]; env->sregs[LITBASE] &= ~1; env->sregs[PS] = xtensa_option_enabled(env->config, XTENSA_OPTION_INTERRUPT) ? 0x1f : 0x10; diff --git a/target/xtensa/cpu.h b/target/xtensa/cpu.h index 7fe82a37af..6b044d32f6 100644 --- a/target/xtensa/cpu.h +++ b/target/xtensa/cpu.h @@ -209,7 +209,8 @@ enum { enum { /* Static vectors */ - EXC_RESET, + EXC_RESET0, + EXC_RESET1, EXC_MEMORY_ERROR, /* Dynamic vectors */ @@ -373,6 +374,7 @@ typedef struct CPUXtensaState { int64_t halt_clock; int exception_taken; + unsigned static_vectors; /* Watchpoints for DBREAK registers */ struct CPUWatchpoint *cpu_watchpoint[MAX_NDBREAK]; @@ -461,6 +463,12 @@ void reset_mmu(CPUXtensaState *env); void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUXtensaState *env); void debug_exception_env(CPUXtensaState *new_env, uint32_t cause); +static inline void xtensa_select_static_vectors(CPUXtensaState *env, + unsigned n) +{ + assert(n < 2); + env->static_vectors = n; +} #define XTENSA_OPTION_BIT(opt) (((uint64_t)1) << (opt)) #define XTENSA_OPTION_ALL (~(uint64_t)0) diff --git a/target/xtensa/overlay_tool.h b/target/xtensa/overlay_tool.h index e8a7fda3d8..535714243b 100644 --- a/target/xtensa/overlay_tool.h +++ b/target/xtensa/overlay_tool.h @@ -47,6 +47,14 @@ #define XCHAL_VECBASE_RESET_VADDR 0 #endif +#ifndef XCHAL_RESET_VECTOR0_VADDR +#define XCHAL_RESET_VECTOR0_VADDR XCHAL_RESET_VECTOR_VADDR +#endif + +#ifndef XCHAL_RESET_VECTOR1_VADDR +#define XCHAL_RESET_VECTOR1_VADDR XCHAL_RESET_VECTOR_VADDR +#endif + #ifndef XCHAL_HW_MIN_VERSION #define XCHAL_HW_MIN_VERSION 0 #endif @@ -133,7 +141,8 @@ #endif #define EXCEPTION_VECTORS { \ - [EXC_RESET] = XCHAL_RESET_VECTOR_VADDR, \ + [EXC_RESET0] = XCHAL_RESET_VECTOR0_VADDR, \ + [EXC_RESET1] = XCHAL_RESET_VECTOR1_VADDR, \ WINDOW_VECTORS \ [EXC_KERNEL] = XCHAL_KERNEL_VECTOR_VADDR, \ [EXC_USER] = XCHAL_USER_VECTOR_VADDR, \ |