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authorPhilippe Mathieu-Daudé <f4bug@amsat.org>2021-04-13 20:21:16 +0200
committerPhilippe Mathieu-Daudé <f4bug@amsat.org>2021-05-02 16:49:35 +0200
commitecdbcb0a9450e9109ae3dd6cfa10c71fda753bda (patch)
tree8ec95dfa2a174e9e1e5ce10801bda9f913ecb0f3 /target/mips/op_helper.c
parentd60146a9389db771fa4061d9376ba3e208ff2cdb (diff)
target/mips: Move helper_cache() to tcg/sysemu/special_helper.c
Move helper_cache() to tcg/sysemu/special_helper.c. The CACHE opcode is privileged and is not accessible in user emulation. However we get a link failure when restricting the symbol to sysemu. For now, add a stub helper to satisfy linking, which abort if ever called. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-25-f4bug@amsat.org>
Diffstat (limited to 'target/mips/op_helper.c')
-rw-r--r--target/mips/op_helper.c35
1 files changed, 0 insertions, 35 deletions
diff --git a/target/mips/op_helper.c b/target/mips/op_helper.c
index a077535194..a7fe1de8c4 100644
--- a/target/mips/op_helper.c
+++ b/target/mips/op_helper.c
@@ -788,38 +788,3 @@ void mips_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr,
}
}
#endif /* !CONFIG_USER_ONLY */
-
-void helper_cache(CPUMIPSState *env, target_ulong addr, uint32_t op)
-{
-#ifndef CONFIG_USER_ONLY
- static const char *const type_name[] = {
- "Primary Instruction",
- "Primary Data or Unified Primary",
- "Tertiary",
- "Secondary"
- };
- uint32_t cache_type = extract32(op, 0, 2);
- uint32_t cache_operation = extract32(op, 2, 3);
- target_ulong index = addr & 0x1fffffff;
-
- switch (cache_operation) {
- case 0b010: /* Index Store Tag */
- memory_region_dispatch_write(env->itc_tag, index, env->CP0_TagLo,
- MO_64, MEMTXATTRS_UNSPECIFIED);
- break;
- case 0b001: /* Index Load Tag */
- memory_region_dispatch_read(env->itc_tag, index, &env->CP0_TagLo,
- MO_64, MEMTXATTRS_UNSPECIFIED);
- break;
- case 0b000: /* Index Invalidate */
- case 0b100: /* Hit Invalidate */
- case 0b110: /* Hit Writeback */
- /* no-op */
- break;
- default:
- qemu_log_mask(LOG_UNIMP, "cache operation:%u (type: %s cache)\n",
- cache_operation, type_name[cache_type]);
- break;
- }
-#endif
-}