diff mbox

[PULL,43/66] ppc: Use a helper to generate "LE unsupported" alignment interrupts

Message ID 1473133396-18940-44-git-send-email-david@gibson.dropbear.id.au
State New
Headers show

Commit Message

David Gibson Sept. 6, 2016, 3:42 a.m. UTC 
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>

Some operations aren't allowed in LE mode, use a helper rather than
open coding the exception generation.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 target-ppc/translate.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)
diff mbox

Patch

diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 5986435..1315656 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -2427,6 +2427,12 @@  static inline void gen_check_align(DisasContext *ctx, TCGv EA, int mask)
     tcg_temp_free(t0);
 }
 
+static inline void gen_align_no_le(DisasContext *ctx)
+{
+    gen_exception_err(ctx, POWERPC_EXCP_ALIGN,
+                      (ctx->opcode & 0x03FF0000) | POWERPC_EXCP_ALIGN_LE);
+}
+
 /***                             Integer load                              ***/
 static inline void gen_qemu_ld8u(DisasContext *ctx, TCGv arg1, TCGv arg2)
 {
@@ -2647,10 +2653,9 @@  static void gen_lq(DisasContext *ctx)
     }
 
     if (!le_is_supported && ctx->le_mode) {
-        gen_exception_err(ctx, POWERPC_EXCP_ALIGN, POWERPC_EXCP_ALIGN_LE);
+        gen_align_no_le(ctx);
         return;
     }
-
     ra = rA(ctx->opcode);
     rd = rD(ctx->opcode);
     if (unlikely((rd & 1) || rd == ra)) {
@@ -2781,7 +2786,7 @@  static void gen_std(DisasContext *ctx)
         }
 
         if (!le_is_supported && ctx->le_mode) {
-            gen_exception_err(ctx, POWERPC_EXCP_ALIGN, POWERPC_EXCP_ALIGN_LE);
+            gen_align_no_le(ctx);
             return;
         }