From 0184e266cb7584feefaf4b54abbaa9fa81b62fac Mon Sep 17 00:00:00 2001
From: Blue Swirl <blauwirbel@gmail.com>
Date: Mon, 1 Aug 2011 12:19:05 +0000
Subject: Sparc: avoid AREG0 wrappers for memory access helpers

Adjust generation of load and store templates so that the functions
take a parameter for CPUState instead of relying on global env.

Remove wrappers. Move remaining memory helpers to ldst_helper.c.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
---
 target-sparc/ldst_helper.c | 73 +++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 69 insertions(+), 4 deletions(-)

(limited to 'target-sparc/ldst_helper.c')

diff --git a/target-sparc/ldst_helper.c b/target-sparc/ldst_helper.c
index 8468cde07e..1418205f99 100644
--- a/target-sparc/ldst_helper.c
+++ b/target-sparc/ldst_helper.c
@@ -64,6 +64,24 @@
 #define QT0 (env->qt0)
 #define QT1 (env->qt1)
 
+#if !defined(CONFIG_USER_ONLY)
+#include "softmmu_exec.h"
+#define MMUSUFFIX _mmu
+#define ALIGNED_ONLY
+
+#define SHIFT 0
+#include "softmmu_template.h"
+
+#define SHIFT 1
+#include "softmmu_template.h"
+
+#define SHIFT 2
+#include "softmmu_template.h"
+
+#define SHIFT 3
+#include "softmmu_template.h"
+#endif
+
 #if defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY)
 /* Calculates TSB pointer value for fault page size 8k or 64k */
 static uint64_t ultrasparc_tsb_pointer(uint64_t tsb_register,
@@ -523,17 +541,17 @@ uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr, int asi, int size,
     case 9: /* Supervisor code access */
         switch (size) {
         case 1:
-            ret = ldub_code(addr);
+            ret = cpu_ldub_code(env, addr);
             break;
         case 2:
-            ret = lduw_code(addr);
+            ret = cpu_lduw_code(env, addr);
             break;
         default:
         case 4:
-            ret = ldl_code(addr);
+            ret = cpu_ldl_code(env, addr);
             break;
         case 8:
-            ret = ldq_code(addr);
+            ret = cpu_ldq_code(env, addr);
             break;
         }
         break;
@@ -2355,3 +2373,50 @@ void cpu_unassigned_access(CPUSPARCState *env, target_phys_addr_t addr,
 }
 #endif
 #endif
+
+#if !defined(CONFIG_USER_ONLY)
+/* XXX: make it generic ? */
+static void cpu_restore_state2(CPUSPARCState *env, void *retaddr)
+{
+    TranslationBlock *tb;
+    unsigned long pc;
+
+    if (retaddr) {
+        /* now we have a real cpu fault */
+        pc = (unsigned long)retaddr;
+        tb = tb_find_pc(pc);
+        if (tb) {
+            /* the PC is inside the translated code. It means that we have
+               a virtual CPU fault */
+            cpu_restore_state(tb, env, pc);
+        }
+    }
+}
+
+void do_unaligned_access(CPUSPARCState *env, target_ulong addr, int is_write,
+                         int is_user, void *retaddr)
+{
+#ifdef DEBUG_UNALIGNED
+    printf("Unaligned access to 0x" TARGET_FMT_lx " from 0x" TARGET_FMT_lx
+           "\n", addr, env->pc);
+#endif
+    cpu_restore_state2(env, retaddr);
+    helper_raise_exception(env, TT_UNALIGNED);
+}
+
+/* try to fill the TLB and return an exception if error. If retaddr is
+   NULL, it means that the function was called in C code (i.e. not
+   from generated code or from helper.c) */
+/* XXX: fix it to restore all registers */
+void tlb_fill(CPUSPARCState *env, target_ulong addr, int is_write, int mmu_idx,
+              void *retaddr)
+{
+    int ret;
+
+    ret = cpu_sparc_handle_mmu_fault(env, addr, is_write, mmu_idx);
+    if (ret) {
+        cpu_restore_state2(env, retaddr);
+        cpu_loop_exit(env);
+    }
+}
+#endif
-- 
cgit v1.2.1