semihosting: Split out common_semi_has_synccache

We already have some larger ifdef blocks for ARM and RISCV;
split out a boolean test for SYS_SYNCCACHE.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 13 insertions, 7 deletions

diff --git a/semihosting/arm-compat-semi.c b/semihosting/arm-compat-semi.c
index 7550dce..50f40a2 100644
--- a/semihosting/arm-compat-semi.c
+++ b/semihosting/arm-compat-semi.c
@@ -224,6 +224,12 @@ static inline target_ulong common_semi_stack_bottom(CPUState *cs)
     CPUARMState *env = &cpu->env;
     return is_a64(env) ? env->xregs[31] : env->regs[13];
 }
+
+static inline bool common_semi_has_synccache(CPUArchState *env)
+{
+    /* Ok for A64, invalid for A32/T32. */
+    return is_a64(env);
+}
 #endif /* TARGET_ARM */
 
 #ifdef TARGET_RISCV
@@ -260,6 +266,11 @@ static inline target_ulong common_semi_stack_bottom(CPUState *cs)
     CPURISCVState *env = &cpu->env;
     return env->gpr[xSP];
 }
+
+static inline bool common_semi_has_synccache(CPUArchState *env)
+{
+    return true;
+}
 #endif
 
 /*
@@ -1102,16 +1113,11 @@ void do_common_semihosting(CPUState *cs)
          * virtual address range. This is a nop for us since we don't
          * implement caches. This is only present on A64.
          */
-#ifdef TARGET_ARM
-        if (is_a64(cs->env_ptr)) {
+        if (common_semi_has_synccache(env)) {
             common_semi_set_ret(cs, 0);
             break;
         }
-#endif
-#ifdef TARGET_RISCV
-        common_semi_set_ret(cs, 0);
-#endif
-        /* fall through -- invalid for A32/T32 */
+        /* fall through */
     default:
         fprintf(stderr, "qemu: Unsupported SemiHosting SWI 0x%02x\n", nr);
         cpu_dump_state(cs, stderr, 0);