diff options
Diffstat (limited to 'tcg/riscv/tcg-target.c.inc')
| -rw-r--r-- | tcg/riscv/tcg-target.c.inc | 52 |
1 files changed, 13 insertions, 39 deletions
diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc index 71c0badc02..20d5b5ef01 100644 --- a/tcg/riscv/tcg-target.c.inc +++ b/tcg/riscv/tcg-target.c.inc @@ -122,6 +122,19 @@ static const int tcg_target_call_oarg_regs[] = { #define TCG_CT_CONST_N12 0x400 #define TCG_CT_CONST_M12 0x800 +#define ALL_GENERAL_REGS MAKE_64BIT_MASK(0, 32) +/* + * For softmmu, we need to avoid conflicts with the first 5 + * argument registers to call the helper. Some of these are + * also used for the tlb lookup. + */ +#ifdef CONFIG_SOFTMMU +#define SOFTMMU_RESERVE_REGS MAKE_64BIT_MASK(TCG_REG_A0, 5) +#else +#define SOFTMMU_RESERVE_REGS 0 +#endif + + static inline tcg_target_long sextreg(tcg_target_long val, int pos, int len) { if (TCG_TARGET_REG_BITS == 32) { @@ -131,45 +144,6 @@ static inline tcg_target_long sextreg(tcg_target_long val, int pos, int len) } } -/* parse target specific constraints */ -static const char *target_parse_constraint(TCGArgConstraint *ct, - const char *ct_str, TCGType type) -{ - switch (*ct_str++) { - case 'r': - ct->regs = 0xffffffff; - break; - case 'L': - /* qemu_ld/qemu_st constraint */ - ct->regs = 0xffffffff; - /* qemu_ld/qemu_st uses TCG_REG_TMP0 */ -#if defined(CONFIG_SOFTMMU) - tcg_regset_reset_reg(ct->regs, tcg_target_call_iarg_regs[0]); - tcg_regset_reset_reg(ct->regs, tcg_target_call_iarg_regs[1]); - tcg_regset_reset_reg(ct->regs, tcg_target_call_iarg_regs[2]); - tcg_regset_reset_reg(ct->regs, tcg_target_call_iarg_regs[3]); - tcg_regset_reset_reg(ct->regs, tcg_target_call_iarg_regs[4]); -#endif - break; - case 'I': - ct->ct |= TCG_CT_CONST_S12; - break; - case 'N': - ct->ct |= TCG_CT_CONST_N12; - break; - case 'M': - ct->ct |= TCG_CT_CONST_M12; - break; - case 'Z': - /* we can use a zero immediate as a zero register argument. */ - ct->ct |= TCG_CT_CONST_ZERO; - break; - default: - return NULL; - } - return ct_str; -} - /* test if a constant matches the constraint */ static int tcg_target_const_match(tcg_target_long val, TCGType type, const TCGArgConstraint *arg_ct) |