From e141ab52d2ea5d0bc6ad3b1ad32841127ca04adc Mon Sep 17 00:00:00 2001 From: Blue Swirl Date: Sun, 18 Sep 2011 14:55:46 +0000 Subject: softmmu templates: optionally pass CPUState to memory access functions Optionally, make memory access helpers take a parameter for CPUState instead of relying on global env. On most targets, perform simple moves to reorder registers. On i386, switch from regparm(3) calling convention to standard stack-based version. Signed-off-by: Blue Swirl --- tcg/ppc64/tcg-target.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) (limited to 'tcg/ppc64') diff --git a/tcg/ppc64/tcg-target.c b/tcg/ppc64/tcg-target.c index 7f723b5c2c..409a1ac1ce 100644 --- a/tcg/ppc64/tcg-target.c +++ b/tcg/ppc64/tcg-target.c @@ -552,6 +552,27 @@ static void tcg_out_ldsta (TCGContext *s, int ret, int addr, #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 void *qemu_ld_helpers[4] = { __ldb_mmu, __ldw_mmu, @@ -559,12 +580,15 @@ static void *qemu_ld_helpers[4] = { __ldq_mmu, }; +/* legacy helper signature: __st_mmu(target_ulong addr, uintxx_t val, + int mmu_idx) */ static void *qemu_st_helpers[4] = { __stb_mmu, __stw_mmu, __stl_mmu, __stq_mmu, }; +#endif static void tcg_out_tlb_read (TCGContext *s, int r0, int r1, int r2, int addr_reg, int s_bits, int offset) @@ -648,6 +672,15 @@ static void tcg_out_qemu_ld (TCGContext *s, const TCGArg *args, int opc) tcg_out_mov (s, TCG_TYPE_I64, 3, addr_reg); tcg_out_movi (s, TCG_TYPE_I64, 4, mem_index); +#ifdef CONFIG_TCG_PASS_AREG0 + /* XXX/FIXME: suboptimal */ + tcg_out_mov(s, TCG_TYPE_I32, 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 tcg_out_call (s, (tcg_target_long) qemu_ld_helpers[s_bits], 1); switch (opc) { @@ -796,6 +829,17 @@ static void tcg_out_qemu_st (TCGContext *s, const TCGArg *args, int opc) tcg_out_rld (s, RLDICL, 4, data_reg, 0, 64 - (1 << (3 + opc))); tcg_out_movi (s, TCG_TYPE_I64, 5, 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 tcg_out_call (s, (tcg_target_long) qemu_st_helpers[opc], 1); label2_ptr = s->code_ptr; -- cgit v1.2.3