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/*
* Tiny Code Generator for QEMU
*
* Copyright (c) 2009 Ulrich Hecht <uli@suse.de>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef S390_TCG_TARGET_H
#define S390_TCG_TARGET_H
#define TCG_TARGET_INSN_UNIT_SIZE 2
#define TCG_TARGET_TLB_DISPLACEMENT_BITS 19
/* We have a +- 4GB range on the branches; leave some slop. */
#define MAX_CODE_GEN_BUFFER_SIZE (3 * GiB)
typedef enum TCGReg {
TCG_REG_R0, TCG_REG_R1, TCG_REG_R2, TCG_REG_R3,
TCG_REG_R4, TCG_REG_R5, TCG_REG_R6, TCG_REG_R7,
TCG_REG_R8, TCG_REG_R9, TCG_REG_R10, TCG_REG_R11,
TCG_REG_R12, TCG_REG_R13, TCG_REG_R14, TCG_REG_R15,
TCG_REG_V0 = 32, TCG_REG_V1, TCG_REG_V2, TCG_REG_V3,
TCG_REG_V4, TCG_REG_V5, TCG_REG_V6, TCG_REG_V7,
TCG_REG_V8, TCG_REG_V9, TCG_REG_V10, TCG_REG_V11,
TCG_REG_V12, TCG_REG_V13, TCG_REG_V14, TCG_REG_V15,
TCG_REG_V16, TCG_REG_V17, TCG_REG_V18, TCG_REG_V19,
TCG_REG_V20, TCG_REG_V21, TCG_REG_V22, TCG_REG_V23,
TCG_REG_V24, TCG_REG_V25, TCG_REG_V26, TCG_REG_V27,
TCG_REG_V28, TCG_REG_V29, TCG_REG_V30, TCG_REG_V31,
TCG_AREG0 = TCG_REG_R10,
TCG_REG_CALL_STACK = TCG_REG_R15
} TCGReg;
#define TCG_TARGET_NB_REGS 64
/* A list of relevant facilities used by this translator. Some of these
are required for proper operation, and these are checked at startup. */
#define FACILITY_ZARCH_ACTIVE 2
#define FACILITY_LONG_DISP 18
#define FACILITY_EXT_IMM 21
#define FACILITY_GEN_INST_EXT 34
#define FACILITY_LOAD_ON_COND 45
#define FACILITY_FAST_BCR_SER FACILITY_LOAD_ON_COND
#define FACILITY_DISTINCT_OPS FACILITY_LOAD_ON_COND
#define FACILITY_LOAD_ON_COND2 53
#define FACILITY_VECTOR 129
#define FACILITY_VECTOR_ENH1 135
extern uint64_t s390_facilities[3];
#define HAVE_FACILITY(X) \
((s390_facilities[FACILITY_##X / 64] >> (63 - FACILITY_##X % 64)) & 1)
/* optional instructions */
#define TCG_TARGET_HAS_div2_i32 1
#define TCG_TARGET_HAS_rot_i32 1
#define TCG_TARGET_HAS_ext8s_i32 1
#define TCG_TARGET_HAS_ext16s_i32 1
#define TCG_TARGET_HAS_ext8u_i32 1
#define TCG_TARGET_HAS_ext16u_i32 1
#define TCG_TARGET_HAS_bswap16_i32 1
#define TCG_TARGET_HAS_bswap32_i32 1
#define TCG_TARGET_HAS_not_i32 0
#define TCG_TARGET_HAS_neg_i32 1
#define TCG_TARGET_HAS_andc_i32 0
#define TCG_TARGET_HAS_orc_i32 0
#define TCG_TARGET_HAS_eqv_i32 0
#define TCG_TARGET_HAS_nand_i32 0
#define TCG_TARGET_HAS_nor_i32 0
#define TCG_TARGET_HAS_clz_i32 0
#define TCG_TARGET_HAS_ctz_i32 0
#define TCG_TARGET_HAS_ctpop_i32 0
#define TCG_TARGET_HAS_deposit_i32 HAVE_FACILITY(GEN_INST_EXT)
#define TCG_TARGET_HAS_extract_i32 HAVE_FACILITY(GEN_INST_EXT)
#define TCG_TARGET_HAS_sextract_i32 0
#define TCG_TARGET_HAS_extract2_i32 0
#define TCG_TARGET_HAS_movcond_i32 1
#define TCG_TARGET_HAS_add2_i32 1
#define TCG_TARGET_HAS_sub2_i32 1
#define TCG_TARGET_HAS_mulu2_i32 0
#define TCG_TARGET_HAS_muls2_i32 0
#define TCG_TARGET_HAS_muluh_i32 0
#define TCG_TARGET_HAS_mulsh_i32 0
#define TCG_TARGET_HAS_extrl_i64_i32 0
#define TCG_TARGET_HAS_extrh_i64_i32 0
#define TCG_TARGET_HAS_direct_jump HAVE_FACILITY(GEN_INST_EXT)
#define TCG_TARGET_HAS_qemu_st8_i32 0
#define TCG_TARGET_HAS_div2_i64 1
#define TCG_TARGET_HAS_rot_i64 1
#define TCG_TARGET_HAS_ext8s_i64 1
#define TCG_TARGET_HAS_ext16s_i64 1
#define TCG_TARGET_HAS_ext32s_i64 1
#define TCG_TARGET_HAS_ext8u_i64 1
#define TCG_TARGET_HAS_ext16u_i64 1
#define TCG_TARGET_HAS_ext32u_i64 1
#define TCG_TARGET_HAS_bswap16_i64 1
#define TCG_TARGET_HAS_bswap32_i64 1
#define TCG_TARGET_HAS_bswap64_i64 1
#define TCG_TARGET_HAS_not_i64 0
#define TCG_TARGET_HAS_neg_i64 1
#define TCG_TARGET_HAS_andc_i64 0
#define TCG_TARGET_HAS_orc_i64 0
#define TCG_TARGET_HAS_eqv_i64 0
#define TCG_TARGET_HAS_nand_i64 0
#define TCG_TARGET_HAS_nor_i64 0
#define TCG_TARGET_HAS_clz_i64 HAVE_FACILITY(EXT_IMM)
#define TCG_TARGET_HAS_ctz_i64 0
#define TCG_TARGET_HAS_ctpop_i64 0
#define TCG_TARGET_HAS_deposit_i64 HAVE_FACILITY(GEN_INST_EXT)
#define TCG_TARGET_HAS_extract_i64 HAVE_FACILITY(GEN_INST_EXT)
#define TCG_TARGET_HAS_sextract_i64 0
#define TCG_TARGET_HAS_extract2_i64 0
#define TCG_TARGET_HAS_movcond_i64 1
#define TCG_TARGET_HAS_add2_i64 1
#define TCG_TARGET_HAS_sub2_i64 1
#define TCG_TARGET_HAS_mulu2_i64 1
#define TCG_TARGET_HAS_muls2_i64 0
#define TCG_TARGET_HAS_muluh_i64 0
#define TCG_TARGET_HAS_mulsh_i64 0
#define TCG_TARGET_HAS_v64 HAVE_FACILITY(VECTOR)
#define TCG_TARGET_HAS_v128 HAVE_FACILITY(VECTOR)
#define TCG_TARGET_HAS_v256 0
#define TCG_TARGET_HAS_andc_vec 1
#define TCG_TARGET_HAS_orc_vec HAVE_FACILITY(VECTOR_ENH1)
#define TCG_TARGET_HAS_not_vec 1
#define TCG_TARGET_HAS_neg_vec 1
#define TCG_TARGET_HAS_abs_vec 1
#define TCG_TARGET_HAS_roti_vec 0
#define TCG_TARGET_HAS_rots_vec 0
#define TCG_TARGET_HAS_rotv_vec 0
#define TCG_TARGET_HAS_shi_vec 0
#define TCG_TARGET_HAS_shs_vec 0
#define TCG_TARGET_HAS_shv_vec 0
#define TCG_TARGET_HAS_mul_vec 1
#define TCG_TARGET_HAS_sat_vec 0
#define TCG_TARGET_HAS_minmax_vec 0
#define TCG_TARGET_HAS_bitsel_vec 0
#define TCG_TARGET_HAS_cmpsel_vec 0
/* used for function call generation */
#define TCG_TARGET_STACK_ALIGN 8
#define TCG_TARGET_CALL_STACK_OFFSET 160
#define TCG_TARGET_EXTEND_ARGS 1
#define TCG_TARGET_HAS_MEMORY_BSWAP 1
#define TCG_TARGET_DEFAULT_MO (TCG_MO_ALL & ~TCG_MO_ST_LD)
static inline void tb_target_set_jmp_target(uintptr_t tc_ptr, uintptr_t jmp_rx,
uintptr_t jmp_rw, uintptr_t addr)
{
/* patch the branch destination */
intptr_t disp = addr - (jmp_rx - 2);
qatomic_set((int32_t *)jmp_rw, disp / 2);
/* no need to flush icache explicitly */
}
#ifdef CONFIG_SOFTMMU
#define TCG_TARGET_NEED_LDST_LABELS
#endif
#define TCG_TARGET_NEED_POOL_LABELS
#endif
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