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author | Blue Swirl <blauwirbel@gmail.com> | 2011-09-18 14:55:46 +0000 |
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committer | Blue Swirl <blauwirbel@gmail.com> | 2012-03-18 12:21:52 +0000 |
commit | e141ab52d2ea5d0bc6ad3b1ad32841127ca04adc (patch) | |
tree | 9290ef9ce78430649ba092b1c755577c48bcf81c /tcg/ppc | |
parent | 6a18ae2d2947532d5c26439548afa0481c4529f9 (diff) | |
download | qemu-e141ab52d2ea5d0bc6ad3b1ad32841127ca04adc.zip qemu-e141ab52d2ea5d0bc6ad3b1ad32841127ca04adc.tar.gz qemu-e141ab52d2ea5d0bc6ad3b1ad32841127ca04adc.tar.bz2 |
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 <blauwirbel@gmail.com>
Diffstat (limited to 'tcg/ppc')
-rw-r--r-- | tcg/ppc/tcg-target.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/tcg/ppc/tcg-target.c b/tcg/ppc/tcg-target.c index 6a34cab..b0aa914 100644 --- a/tcg/ppc/tcg-target.c +++ b/tcg/ppc/tcg-target.c @@ -508,6 +508,27 @@ static void tcg_out_call (TCGContext *s, tcg_target_long arg, int const_arg) #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, @@ -515,6 +536,8 @@ static void *qemu_ld_helpers[4] = { __ldq_mmu, }; +/* legacy helper signature: __ld_mmu(target_ulong addr, int + mmu_idx) */ static void *qemu_st_helpers[4] = { __stb_mmu, __stw_mmu, @@ -522,6 +545,7 @@ static void *qemu_st_helpers[4] = { __stq_mmu, }; #endif +#endif static void tcg_out_qemu_ld (TCGContext *s, const TCGArg *args, int opc) { @@ -598,6 +622,16 @@ static void tcg_out_qemu_ld (TCGContext *s, const TCGArg *args, int opc) tcg_out_movi (s, TCG_TYPE_I32, 5, mem_index); #endif +#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) { case 0|4: @@ -829,6 +863,17 @@ static void tcg_out_qemu_st (TCGContext *s, const TCGArg *args, int opc) ir++; tcg_out_movi (s, TCG_TYPE_I32, ir, 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; tcg_out32 (s, B); |