[RFC,v1,34/43] target/hexagon: Add get_tb_mmu_index()

Commit Message

Anton Johansson Nov. 21, 2024, 1:49 a.m. UTC

Adds a functions to return the current mmu index given tb_flags of the
current translation block.  Required by helper-to-tcg in order to
retrieve the mmu index for memory operations without changing the
signature of helper functions.

Signed-off-by: Anton Johansson <[e-mail]>
---
 target/hexagon/cpu.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

Patch

diff --git a/target/hexagon/cpu.h b/target/hexagon/cpu.h
index 764f3c38cc..7be4b5769e 100644
--- a/target/hexagon/cpu.h
+++ b/target/hexagon/cpu.h
@@ -153,6 +153,18 @@  static inline void cpu_get_tb_cpu_state(CPUHexagonState *env, vaddr *pc,
     }
 }
 
+// Returns the current mmu index given tb_flags of the current translation
+// block.  Required by helper-to-tcg in order to retrieve the mmu index for
+// memory operations without changing the signature of helper functions.
+static inline int get_tb_mmu_index(uint32_t flags)
+{
+#ifdef CONFIG_USER_ONLY
+    return MMU_USER_IDX;
+#else
+#error System mode not supported on Hexagon yet
+#endif
+}
+
 typedef HexagonCPU ArchCPU;
 
 void hexagon_translate_init(void);