diff mbox

[PATCHv2,29/31] ppc: Use a helper to generate "LE unsupported" alignment interrupts

Message ID 1469602609-31349-29-git-send-email-benh@kernel.crashing.org
State New
Headers show

Commit Message

Benjamin Herrenschmidt July 27, 2016, 6:56 a.m. UTC 
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>
---
 target-ppc/translate.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)
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Patch

diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 4640a29..0723c97 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -2426,6 +2426,12 @@  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)
 {
@@ -2646,10 +2652,9 @@  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)) {
@@ -2780,7 +2785,7 @@  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;
         }