Merge remote-tracking branch 'qemu-kvm/memory/urgent' into staging

* qemu-kvm/memory/urgent: (42 commits)
  memory: check for watchpoints when getting code ram_addr
  exec: fix write tlb entry misused as iotlb
  Sparc: avoid AREG0 wrappers for memory access helpers
  Sparc: avoid AREG0 for memory access helpers
  TCG: add 5 arg helpers to def-helper.h
  softmmu templates: optionally pass CPUState to memory access functions
  i386: Remove REGPARM
  sparc64: implement PCI and ISA irqs
  sparc: reset CPU state on reset
  apb: use normal PCI device header for PBM device
  w64: Fix data type of next_tb and tcg_qemu_tb_exec
  softfloat: fix for C99
  vmstate: fix varrays with uint32_t indexes
  Fix large memory chunks allocation with tcg_malloc.
  hw/pxa2xx.c: Fix handling of pxa2xx_i2c variable offset within region
  hw/pxa2xx_lcd.c: drop target_phys_addr_t usage in device state
  hw/pxa2xx_dma.c: drop target_phys_addr_t usage in device state
  ARM: Remove unnecessary subpage workarounds
  malta: Fix display for LED array
  malta: Use symbolic hardware addresses
  ...

1 files changed, 47 insertions, 3 deletions

diff --git a/tcg/sparc/tcg-target.c b/tcg/sparc/tcg-target.c
index b287122df5..80f0818679 100644
--- a/tcg/sparc/tcg-target.c
+++ b/tcg/sparc/tcg-target.c
@@ -59,6 +59,12 @@ static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
 };
 #endif
 
+#ifdef CONFIG_TCG_PASS_AREG0
+#define ARG_OFFSET 1
+#else
+#define ARG_OFFSET 0
+#endif
+
 static const int tcg_target_reg_alloc_order[] = {
     TCG_REG_L0,
     TCG_REG_L1,
@@ -86,9 +92,9 @@ static const int tcg_target_call_iarg_regs[6] = {
 
 static const int tcg_target_call_oarg_regs[] = {
     TCG_REG_O0,
-#if TCG_TARGET_REG_BITS == 32
-    TCG_REG_O1
-#endif
+    TCG_REG_O1,
+    TCG_REG_O2,
+    TCG_REG_O3,
 };
 
 static inline int check_fit_tl(tcg_target_long val, unsigned int bits)
@@ -155,6 +161,9 @@ static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str)
         tcg_regset_reset_reg(ct->u.regs, TCG_REG_O0);
         tcg_regset_reset_reg(ct->u.regs, TCG_REG_O1);
         tcg_regset_reset_reg(ct->u.regs, TCG_REG_O2);
+#ifdef CONFIG_TCG_PASS_AREG0
+        tcg_regset_reset_reg(ct->u.regs, TCG_REG_O3);
+#endif
         break;
     case 'I':
         ct->ct |= TCG_CT_CONST_S11;
@@ -706,6 +715,27 @@ static void tcg_target_qemu_prologue(TCGContext *s)
 
 #include "../../softmmu_defs.h"
 
+#ifdef CONFIG_TCG_PASS_AREG0
+/* helper signature: helper_ld_mmu(CPUState *env, target_ulong addr,
+   int mmu_idx) */
+static const void * const qemu_ld_helpers[4] = {
+    helper_ldb_mmu,
+    helper_ldw_mmu,
+    helper_ldl_mmu,
+    helper_ldq_mmu,
+};
+
+/* helper signature: helper_st_mmu(CPUState *env, target_ulong addr,
+   uintxx_t val, int mmu_idx) */
+static const void * const qemu_st_helpers[4] = {
+    helper_stb_mmu,
+    helper_stw_mmu,
+    helper_stl_mmu,
+    helper_stq_mmu,
+};
+#else
+/* legacy helper signature: __ld_mmu(target_ulong addr, int
+   mmu_idx) */
 static const void * const qemu_ld_helpers[4] = {
     __ldb_mmu,
     __ldw_mmu,
@@ -713,6 +743,8 @@ static const void * const qemu_ld_helpers[4] = {
     __ldq_mmu,
 };
 
+/* legacy helper signature: __st_mmu(target_ulong addr, uintxx_t val,
+   int mmu_idx) */
 static const void * const qemu_st_helpers[4] = {
     __stb_mmu,
     __stw_mmu,
@@ -720,6 +752,7 @@ static const void * const qemu_st_helpers[4] = {
     __stq_mmu,
 };
 #endif
+#endif
 
 #if TARGET_LONG_BITS == 32
 #define TARGET_LD_OP LDUW
@@ -801,6 +834,17 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args,
 
     /* mov */
     tcg_out_movi(s, TCG_TYPE_I32, arg1, mem_index);
+#ifdef CONFIG_TCG_PASS_AREG0
+    /* XXX/FIXME: suboptimal */
+    tcg_out_mov(s, TCG_TYPE_I32, tcg_target_call_iarg_regs[3],
+                tcg_target_call_iarg_regs[2]);
+    tcg_out_mov(s, TCG_TYPE_I64, tcg_target_call_iarg_regs[2],
+                tcg_target_call_iarg_regs[1]);
+    tcg_out_mov(s, TCG_TYPE_TL, tcg_target_call_iarg_regs[1],
+                tcg_target_call_iarg_regs[0]);
+    tcg_out_mov(s, TCG_TYPE_PTR, tcg_target_call_iarg_regs[0],
+                TCG_AREG0);
+#endif
 
     /* XXX: move that code at the end of the TB */
     /* qemu_ld_helper[s_bits](arg0, arg1) */