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target-arm: a64: Add endianness support

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Set the dc->mo_endianness flag for AA64 and use it in all ldst ops.

Backports commit aa6489da4e297fb3ffcbc09b50afd700395b6386 from qemu
This commit is contained in:
Peter Crosthwaite 2018-02-21 02:30:42 -05:00 committed by Lioncash
parent 9ab3d105fd
commit 50a3c7f2ee
No known key found for this signature in database
GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 29 additions and 19 deletions
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48
qemu/target-arm/translate-a64.c
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@ -748,7 +748,7 @@ static void do_gpr_st_memidx(DisasContext *s, TCGv_i64 source,
TCGv_i64 tcg_addr, int size, int memidx)
{
g_assert(size <= 3);
tcg_gen_qemu_st_i64(s->uc, source, tcg_addr, memidx, MO_TE + size);
tcg_gen_qemu_st_i64(s->uc, source, tcg_addr, memidx, s->be_data + size);
}
static void do_gpr_st(DisasContext *s, TCGv_i64 source,
@ -764,7 +764,7 @@ static void do_gpr_ld_memidx(DisasContext *s, TCGv_i64 dest, TCGv_i64 tcg_addr,
int size, bool is_signed, bool extend, int memidx)
{
TCGContext *tcg_ctx = s->uc->tcg_ctx;
TCGMemOp memop = MO_TE + size;
TCGMemOp memop = s->be_data + size;
g_assert(size <= 3);
@ -797,13 +797,17 @@ static void do_fp_st(DisasContext *s, int srcidx, TCGv_i64 tcg_addr, int size)
TCGv_i64 tmp = tcg_temp_new_i64(tcg_ctx);
tcg_gen_ld_i64(tcg_ctx, tmp, tcg_ctx->cpu_env, fp_reg_offset(s, srcidx, MO_64));
if (size < 4) {
tcg_gen_qemu_st_i64(s->uc, tmp, tcg_addr, get_mem_index(s), MO_TE + size);
tcg_gen_qemu_st_i64(s->uc, tmp, tcg_addr, get_mem_index(s),
s->be_data + size);
} else {
bool be = s->be_data == MO_BE;
TCGv_i64 tcg_hiaddr = tcg_temp_new_i64(tcg_ctx);
tcg_gen_qemu_st_i64(s->uc, tmp, tcg_addr, get_mem_index(s), MO_TEQ);
tcg_gen_ld_i64(tcg_ctx, tmp, tcg_ctx->cpu_env, fp_reg_hi_offset(s, srcidx));
tcg_gen_addi_i64(tcg_ctx, tcg_hiaddr, tcg_addr, 8);
tcg_gen_qemu_st_i64(s->uc, tmp, tcg_hiaddr, get_mem_index(s), MO_TEQ);
tcg_gen_qemu_st_i64(s->uc, tmp, be ? tcg_hiaddr : tcg_addr, get_mem_index(s),
s->be_data | MO_Q);
tcg_gen_ld_i64(tcg_ctx, tmp, tcg_ctx->cpu_env, fp_reg_hi_offset(s, srcidx));
tcg_gen_qemu_st_i64(s->uc, tmp, be ? tcg_addr : tcg_hiaddr, get_mem_index(s),
s->be_data | MO_Q);
tcg_temp_free_i64(tcg_ctx, tcg_hiaddr);
}
@ -821,17 +825,21 @@ static void do_fp_ld(DisasContext *s, int destidx, TCGv_i64 tcg_addr, int size)
TCGv_i64 tmphi;
if (size < 4) {
TCGMemOp memop = MO_TE + size;
TCGMemOp memop = s->be_data + size;
tmphi = tcg_const_i64(tcg_ctx, 0);
tcg_gen_qemu_ld_i64(s->uc, tmplo, tcg_addr, get_mem_index(s), memop);
} else {
bool be = s->be_data == MO_BE;
TCGv_i64 tcg_hiaddr;
tmphi = tcg_temp_new_i64(tcg_ctx);
tcg_hiaddr = tcg_temp_new_i64(tcg_ctx);
tcg_gen_qemu_ld_i64(s->uc, tmplo, tcg_addr, get_mem_index(s), MO_TEQ);
tcg_gen_addi_i64(tcg_ctx, tcg_hiaddr, tcg_addr, 8);
tcg_gen_qemu_ld_i64(s->uc, tmphi, tcg_hiaddr, get_mem_index(s), MO_TEQ);
tcg_gen_qemu_ld_i64(s->uc, tmplo, be ? tcg_hiaddr : tcg_addr, get_mem_index(s),
s->be_data | MO_Q);
tcg_gen_qemu_ld_i64(s->uc, tmphi, be ? tcg_addr : tcg_hiaddr, get_mem_index(s),
s->be_data | MO_Q);
tcg_temp_free_i64(tcg_ctx, tcg_hiaddr);
}
@ -976,7 +984,7 @@ static void do_vec_st(DisasContext *s, int srcidx, int element,
TCGv_i64 tcg_addr, int size)
{
TCGContext *tcg_ctx = s->uc->tcg_ctx;
TCGMemOp memop = MO_TE + size;
TCGMemOp memop = s->be_data + size;
TCGv_i64 tcg_tmp = tcg_temp_new_i64(tcg_ctx);
read_vec_element(s, tcg_tmp, srcidx, element, size);
@ -990,7 +998,7 @@ static void do_vec_ld(DisasContext *s, int destidx, int element,
TCGv_i64 tcg_addr, int size)
{
TCGContext *tcg_ctx = s->uc->tcg_ctx;
TCGMemOp memop = MO_TE + size;
TCGMemOp memop = s->be_data + size;
TCGv_i64 tcg_tmp = tcg_temp_new_i64(tcg_ctx);
tcg_gen_qemu_ld_i64(s->uc, tcg_tmp, tcg_addr, get_mem_index(s), memop);
@ -1739,7 +1747,7 @@ static void gen_load_exclusive(DisasContext *s, int rt, int rt2,
{
TCGContext *tcg_ctx = s->uc->tcg_ctx;
TCGv_i64 tmp = tcg_temp_new_i64(tcg_ctx);
TCGMemOp memop = MO_TE + size;
TCGMemOp memop = s->be_data + size;
g_assert(size <= 3);
tcg_gen_qemu_ld_i64(s->uc, tmp, addr, get_mem_index(s), memop);
@ -1802,7 +1810,7 @@ static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2,
tcg_gen_brcond_i64(tcg_ctx, TCG_COND_NE, addr, tcg_ctx->cpu_exclusive_addr, fail_label);
tmp = tcg_temp_new_i64(tcg_ctx);
tcg_gen_qemu_ld_i64(s->uc, tmp, addr, get_mem_index(s), MO_TE + size);
tcg_gen_qemu_ld_i64(s->uc, tmp, addr, get_mem_index(s), s->be_data + size);
tcg_gen_brcond_i64(tcg_ctx, TCG_COND_NE, tmp, tcg_ctx->cpu_exclusive_val, fail_label);
tcg_temp_free_i64(tcg_ctx, tmp);
@ -1811,7 +1819,8 @@ static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2,
TCGv_i64 tmphi = tcg_temp_new_i64(tcg_ctx);
tcg_gen_addi_i64(tcg_ctx, addrhi, addr, 1ULL << size);
tcg_gen_qemu_ld_i64(s->uc, tmphi, addrhi, get_mem_index(s), MO_TE + size);
tcg_gen_qemu_ld_i64(s->uc, tmphi, addrhi, get_mem_index(s),
s->be_data + size);
tcg_gen_brcond_i64(tcg_ctx, TCG_COND_NE, tmphi, tcg_ctx->cpu_exclusive_high, fail_label);
tcg_temp_free_i64(tcg_ctx, tmphi);
@ -1819,13 +1828,14 @@ static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2,
}
/* We seem to still have the exclusive monitor, so do the store */
tcg_gen_qemu_st_i64(s->uc, cpu_reg(s, rt), addr, get_mem_index(s), MO_TE + size);
tcg_gen_qemu_st_i64(s->uc, cpu_reg(s, rt), addr, get_mem_index(s),
s->be_data + size);
if (is_pair) {
TCGv_i64 addrhi = tcg_temp_new_i64(tcg_ctx);
tcg_gen_addi_i64(tcg_ctx, addrhi, addr, 1ULL << size);
tcg_gen_qemu_st_i64(s->uc, cpu_reg(s, rt2), addrhi,
get_mem_index(s), MO_TE + size);
get_mem_index(s), s->be_data + size);
tcg_temp_free_i64(tcg_ctx, addrhi);
}
@ -2652,7 +2662,7 @@ static void disas_ldst_single_struct(DisasContext *s, uint32_t insn)
TCGv_i64 tcg_tmp = tcg_temp_new_i64(tcg_ctx);
tcg_gen_qemu_ld_i64(s->uc, tcg_tmp, tcg_addr,
get_mem_index(s), MO_TE + scale);
get_mem_index(s), s->be_data + scale);
switch (scale) {
case 0:
mulconst = 0x0101010101010101ULL;
@ -2682,9 +2692,9 @@ static void disas_ldst_single_struct(DisasContext *s, uint32_t insn)
} else {
/* Load/store one element per register */
if (is_load) {
do_vec_ld(s, rt, index, tcg_addr, MO_TE + scale);
do_vec_ld(s, rt, index, tcg_addr, s->be_data + scale);
} else {
do_vec_st(s, rt, index, tcg_addr, MO_TE + scale);
do_vec_st(s, rt, index, tcg_addr, s->be_data + scale);
}
}
tcg_gen_addi_i64(tcg_ctx, tcg_addr, tcg_addr, ebytes);