Signed-off-by: WANG Xuerui
---
tcg/loongarch64/tcg-target-con-set.h | 2 +
tcg/loongarch64/tcg-target.c.inc | 353 +++
2 files changed, 355 insertions(+)
diff --git a/tcg/loongarch64/tcg-target-con-set.h
b/tcg/loongarch64/tcg-target-con-set.h
index e54ca9b2de..349c672687 100644
--- a/tcg/loongarch64/tcg-target-con-set.h
+++ b/tcg/loongarch64/tcg-target-con-set.h
@@ -17,7 +17,9 @@
C_O0_I1(r)
C_O0_I2(rZ, r)
C_O0_I2(rZ, rZ)
+C_O0_I2(LZ, L)
C_O1_I1(r, r)
+C_O1_I1(r, L)
C_O1_I2(r, r, rC)
C_O1_I2(r, r, ri)
C_O1_I2(r, r, rI)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index c4dcb120cf..d4f1fe5d58 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -117,6 +117,11 @@ static const int tcg_target_call_oarg_regs[] = {
TCG_REG_A1,
};
+#ifndef CONFIG_SOFTMMU
+#define USE_GUEST_BASE (guest_base != 0)
+#define TCG_GUEST_BASE_REG TCG_REG_S1
+#endif
+
#define TCG_CT_CONST_ZERO 0x100
#define TCG_CT_CONST_S12 0x200
#define TCG_CT_CONST_N12 0x400
@@ -604,6 +609,333 @@ static bool tcg_out_sti(TCGContext *s, TCGType type,
TCGArg val,
return false;
}
+/*
+ * Load/store helpers for SoftMMU, and qemu_ld/st implementations
+ */
+
+#if defined(CONFIG_SOFTMMU)
+#include "../tcg-ldst.c.inc"
+
+/*
+ * helper signature: helper_ret_ld_mmu(CPUState *env, target_ulong addr,
+ * TCGMemOpIdx oi, uintptr_t ra)
+ */
+static void * const qemu_ld_helpers[4] = {
+[MO_8] = helper_ret_ldub_mmu,
+[MO_16] = helper_le_lduw_mmu,
+[MO_32] = helper_le_ldul_mmu,
+[MO_64] = helper_le_ldq_mmu,
+};
+
+/*
+ * helper signature: helper_ret_st_mmu(CPUState *env, target_ulong addr,
+ * uintxx_t val, TCGMemOpIdx oi,
+ * uintptr_t ra)
+ */
+static void * const qemu_st_helpers[4] = {
+[MO_8] = helper_ret_stb_mmu,
+[MO_16] = helper_le_stw_mmu,
+[MO_32] = helper_le_stl_mmu,
+[MO_64] = helper_le_stq_mmu,
+};
+
+/* We expect to use a 12-bit negative offset from ENV. */
+QEMU_BUILD_BUG_ON(TLB_MASK_TABLE_OFS(0) > 0);
+QEMU_BUILD_BUG_ON(TLB_MASK_TABLE_OFS(0) < -(1 << 11));
+
+static bool tcg_out_goto(TCGContext *s, const tcg_insn_unit *target)
+{
+tcg_out_opc_b(s, 0);
+return reloc_br_sd10k16(s->code_ptr - 1, target);
+}
+
+/*
+ * Emits common code for TLB addend lookup, that eventually loads the
+ * addend in TCG_REG_TMP2.
+ */
+static void tcg_out_tlb_load(TCGContext *s, TCGReg addrl, TCGMemOpIdx oi,
+ tcg_insn_unit **label_ptr, bool is_load)
+{
+MemOp opc = get_memop(oi);
+unsigned s_bits = opc & MO_SIZE;
+unsigned a_bits = get_alignment_bits(opc);
+tcg_target_long compare_mask;
+int mem_index = get_mmuidx(oi);
+int fast_ofs = TLB_MASK_TABLE_OFS(mem_index);
+int mask_ofs = fast_ofs + offsetof(CPUTLBDescFast, mask);
+int table_ofs = fast_ofs + offsetof(CPUTLBDescFast, table);
+
+tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP0, TCG_AREG0, mask_ofs);
+tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP1, TCG_AREG0, table_ofs);
+
+tcg_out_opc_srli_d(s, TCG_REG_TMP2, addrl,
+TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS);
+tcg_out_opc_and(s, TCG_REG_TMP2, TCG_REG_TMP2, TCG_REG_TMP0);
+tcg_out_opc_add_d(s, TCG_REG_TMP2, TCG_REG_TMP2, TCG_REG_TMP1);
+
+/* Load the tlb comparator and the addend. */
+tcg_out_ld(s, TCG_TYPE_TL, TCG_REG_TMP0, TCG_REG_TMP2,
+ is_load ? offsetof(CPUTLBEntry, addr_read)
+ : offsetof(CPUTLBEntry, addr_write));
+tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP2, TCG_REG_TMP2,
+ offsetof(CPUTLBEntry, addend));
+
+/* We don't support unaligned accesses. */
+if (a_bits < s_bits) {
+a_bits = s_bits;
+}
+/* Clear the non-page, non-alignment bits from the address. */
+compare_mask = (tcg_target_long)TARGET_PAGE_MASK | ((1 << a_bits) - 1);
+tcg_out_movi(s, TCG_TYPE_TL, TCG_REG_TMP1, compare_mask);
+tcg_out_opc_and(s, TCG_REG_TMP1, TCG_REG_TMP1, addrl);
+
+/* Compare masked address with the TLB entry. */
+label_ptr[0] = s->code_ptr;
+tcg_out_opc_bne(s, TCG_REG_TMP0, TCG_REG_TMP1, 0);
+
+/* TLB Hit - addend in TCG_REG_TMP2, ready for use. */
+}
+
+static void add_qemu_ldst_label(TCGContext *s, int is_ld, TCGMemOpIdx oi,
+TCGType type,
+TCGReg datalo, TCGReg addrlo,
+void *raddr, tcg_insn_unit **label_ptr)
+{
+TCGLabelQemuLdst *label = new_ldst_label(s);
+
+label->is_ld = is_ld;
+label->oi = oi;
+label->type = type;
+label->datalo_reg = datalo;
+label->datahi_reg = 0; /* unused */
+label->addrlo_reg = addrlo;
+label->addrhi_reg = 0; /* unused */
+label->raddr = tcg_splitwx_to_rx(raddr);
+label->label_ptr[0] = label_ptr[0];
+}
+
+static bool
