[RFC PATCH 08/11] target/ppc: implement address swizzle for gen_ld_atomic()

[Mark Cave-Ayland]

The gen_ld_atomic() function uses a number of TCG atomic primitives within its
implementation. Update gen_ld_atomic() so that it implements the address swizzle
if required.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
---
 target/ppc/translate.c | 81 +++++++++++++++++++++++++++++++++++++-----
 1 file changed, 72 insertions(+), 9 deletions(-)

diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index 74aa398f25..b549525bb6 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -3039,31 +3039,94 @@ static void gen_ld_atomic(DisasContext *ctx, MemOp 
memop)
     memop |= MO_ALIGN;
     switch (gpr_FC) {
     case 0: /* Fetch and add */
-        tcg_gen_atomic_fetch_add_tl(dst, EA, src, ctx->mem_idx, memop);
+        if (need_addrswizzle_le(ctx)) {
+            TCGv ta = tcg_temp_new();
+
+            gen_addr_swizzle_le(ta, EA, memop);
+            tcg_gen_atomic_fetch_add_tl(dst, ta, src, ctx->mem_idx, memop);
+        } else {
+            tcg_gen_atomic_fetch_add_tl(dst, EA, src, ctx->mem_idx, memop);
+        }
         break;
     case 1: /* Fetch and xor */
-        tcg_gen_atomic_fetch_xor_tl(dst, EA, src, ctx->mem_idx, memop);
+        if (need_addrswizzle_le(ctx)) {
+            TCGv ta = tcg_temp_new();
+
+            gen_addr_swizzle_le(ta, EA, memop);
+            tcg_gen_atomic_fetch_xor_tl(dst, ta, src, ctx->mem_idx, memop);
+        } else {
+            tcg_gen_atomic_fetch_xor_tl(dst, EA, src, ctx->mem_idx, memop);
+        }
         break;
     case 2: /* Fetch and or */
-        tcg_gen_atomic_fetch_or_tl(dst, EA, src, ctx->mem_idx, memop);
+        if (need_addrswizzle_le(ctx)) {
+            TCGv ta = tcg_temp_new();
+
+            gen_addr_swizzle_le(ta, EA, memop);
+            tcg_gen_atomic_fetch_or_tl(dst, ta, src, ctx->mem_idx, memop);
+        } else {
+            tcg_gen_atomic_fetch_or_tl(dst, EA, src, ctx->mem_idx, memop);
+        }
         break;
     case 3: /* Fetch and 'and' */
-        tcg_gen_atomic_fetch_and_tl(dst, EA, src, ctx->mem_idx, memop);
+        if (need_addrswizzle_le(ctx)) {
+            TCGv ta = tcg_temp_new();
+
+            gen_addr_swizzle_le(ta, EA, memop);
+            tcg_gen_atomic_fetch_and_tl(dst, ta, src, ctx->mem_idx, memop);
+        } else {
+            tcg_gen_atomic_fetch_and_tl(dst, EA, src, ctx->mem_idx, memop);
+        }
         break;
     case 4:  /* Fetch and max unsigned */
-        tcg_gen_atomic_fetch_umax_tl(dst, EA, src, ctx->mem_idx, memop);
+        if (need_addrswizzle_le(ctx)) {
+            TCGv ta = tcg_temp_new();
+
+            gen_addr_swizzle_le(ta, EA, memop);
+            tcg_gen_atomic_fetch_umax_tl(dst, ta, src, ctx->mem_idx, memop);
+        } else {
+            tcg_gen_atomic_fetch_umax_tl(dst, EA, src, ctx->mem_idx, memop);
+        }
         break;
     case 5:  /* Fetch and max signed */
-        tcg_gen_atomic_fetch_smax_tl(dst, EA, src, ctx->mem_idx, memop);
+        if (need_addrswizzle_le(ctx)) {
+            TCGv ta = tcg_temp_new();
+
+            gen_addr_swizzle_le(ta, EA, memop);
+            tcg_gen_atomic_fetch_smax_tl(dst, ta, src, ctx->mem_idx, memop);
+        } else {
+            tcg_gen_atomic_fetch_smax_tl(dst, EA, src, ctx->mem_idx, memop);
+        }
         break;
     case 6:  /* Fetch and min unsigned */
-        tcg_gen_atomic_fetch_umin_tl(dst, EA, src, ctx->mem_idx, memop);
+        if (need_addrswizzle_le(ctx)) {
+            TCGv ta = tcg_temp_new();
+
+            gen_addr_swizzle_le(ta, EA, memop);
+            tcg_gen_atomic_fetch_umin_tl(dst, ta, src, ctx->mem_idx, memop);
+        } else {
+            tcg_gen_atomic_fetch_umin_tl(dst, EA, src, ctx->mem_idx, memop);
+        }
         break;
     case 7:  /* Fetch and min signed */
-        tcg_gen_atomic_fetch_smin_tl(dst, EA, src, ctx->mem_idx, memop);
+        if (need_addrswizzle_le(ctx)) {
+            TCGv ta = tcg_temp_new();
+
+            gen_addr_swizzle_le(ta, EA, memop);
+            tcg_gen_atomic_fetch_smin_tl(dst, ta, src, ctx->mem_idx, memop);
+        } else {
+            tcg_gen_atomic_fetch_smin_tl(dst, EA, src, ctx->mem_idx, memop);
+        }
         break;
     case 8: /* Swap */
-        tcg_gen_atomic_xchg_tl(dst, EA, src, ctx->mem_idx, memop);
+        if (need_addrswizzle_le(ctx)) {
+            TCGv ta = tcg_temp_new();
+
+            gen_addr_swizzle_le(ta, EA, memop);
+            tcg_gen_atomic_xchg_tl(dst, ta, src, ctx->mem_idx, memop);
+        } else {
+            tcg_gen_atomic_xchg_tl(dst, EA, src, ctx->mem_idx, memop);
+        }
         break;
 
     case 16: /* Compare and swap not equal */
-- 
2.39.5