1
The following changes since commit ad1b4ec39caa5b3f17cbd8160283a03a3dcfe2ae:
1
This is mostly RTH's tcg_constant refactoring work, plus a few
2
other things.
2
3
3
Merge remote-tracking branch 'remotes/kraxel/tags/input-20180515-pull-request' into staging (2018-05-15 12:50:06 +0100)
4
thanks
5
-- PMM
6
7
The following changes since commit cf6f26d6f9b2015ee12b4604b79359e76784163a:
8
9
Merge tag 'kraxel-20220427-pull-request' of git://git.kraxel.org/qemu into staging (2022-04-27 10:49:28 -0700)
4
10
5
are available in the Git repository at:
11
are available in the Git repository at:
6
12
7
git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20180515
13
https://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20220428
8
14
9
for you to fetch changes up to ae7651804748c6b479d5ae09aeac4edb9c44f76e:
15
for you to fetch changes up to f8e7163d9e6740b5cef02bf73a17a59d0bef8bdb:
10
16
11
tcg: Optionally log FPU state in TCG -d cpu logging (2018-05-15 14:58:44 +0100)
17
hw/arm/smmuv3: Advertise support for SMMUv3.2-BBML2 (2022-04-28 13:59:23 +0100)
12
18
13
----------------------------------------------------------------
19
----------------------------------------------------------------
14
target-arm queue:
20
target-arm queue:
15
* Fix coverity nit in int_to_float code
21
* refactor to use tcg_constant where appropriate
16
* Don't set Invalid for float-to-int(MAXINT)
22
* Advertise support for FEAT_TTL and FEAT_BBM level 2
17
* Fix fp_status_f16 tininess before rounding
23
* smmuv3: Cache event fault record
18
* Add various missing insns from the v8.2-FP16 extension
24
* smmuv3: Add space in guest error message
19
* Fix sqrt_f16 exception raising
25
* smmuv3: Advertise support for SMMUv3.2-BBML2
20
* sdcard: Correct CRC16 offset in sd_function_switch()
21
* tcg: Optionally log FPU state in TCG -d cpu logging
22
26
23
----------------------------------------------------------------
27
----------------------------------------------------------------
24
Alex Bennée (5):
28
Damien Hedde (1):
25
fpu/softfloat: int_to_float ensure r fully initialised
29
target/arm: Disable cryptographic instructions when neon is disabled
26
target/arm: Implement FCMP for fp16
30
27
target/arm: Implement FCSEL for fp16
31
Jean-Philippe Brucker (2):
28
target/arm: Implement FMOV (immediate) for fp16
32
hw/arm/smmuv3: Cache event fault record
29
target/arm: Fix sqrt_f16 exception raising
33
hw/arm/smmuv3: Add space in guest error message
30
34
31
Peter Maydell (3):
35
Peter Maydell (3):
32
fpu/softfloat: Don't set Invalid for float-to-int(MAXINT)
36
target/arm: Advertise support for FEAT_TTL
33
target/arm: Fix fp_status_f16 tininess before rounding
37
target/arm: Advertise support for FEAT_BBM level 2
34
tcg: Optionally log FPU state in TCG -d cpu logging
38
hw/arm/smmuv3: Advertise support for SMMUv3.2-BBML2
35
39
36
Philippe Mathieu-Daudé (1):
40
Richard Henderson (48):
37
sdcard: Correct CRC16 offset in sd_function_switch()
41
target/arm: Use tcg_constant in gen_probe_access
42
target/arm: Use tcg_constant in gen_mte_check*
43
target/arm: Use tcg_constant in gen_exception*
44
target/arm: Use tcg_constant in gen_adc_CC
45
target/arm: Use tcg_constant in handle_msr_i
46
target/arm: Use tcg_constant in handle_sys
47
target/arm: Use tcg_constant in disas_exc
48
target/arm: Use tcg_constant in gen_compare_and_swap_pair
49
target/arm: Use tcg_constant in disas_ld_lit
50
target/arm: Use tcg_constant in disas_ldst_*
51
target/arm: Use tcg_constant in disas_add_sum_imm*
52
target/arm: Use tcg_constant in disas_movw_imm
53
target/arm: Use tcg_constant in shift_reg_imm
54
target/arm: Use tcg_constant in disas_cond_select
55
target/arm: Use tcg_constant in handle_{rev16,crc32}
56
target/arm: Use tcg_constant in disas_data_proc_2src
57
target/arm: Use tcg_constant in disas_fp*
58
target/arm: Use tcg_constant in simd shift expanders
59
target/arm: Use tcg_constant in simd fp/int conversion
60
target/arm: Use tcg_constant in 2misc expanders
61
target/arm: Use tcg_constant in balance of translate-a64.c
62
target/arm: Use tcg_constant for aa32 exceptions
63
target/arm: Use tcg_constant for disas_iwmmxt_insn
64
target/arm: Use tcg_constant for gen_{msr,mrs}
65
target/arm: Use tcg_constant for vector shift expanders
66
target/arm: Use tcg_constant for do_coproc_insn
67
target/arm: Use tcg_constant for gen_srs
68
target/arm: Use tcg_constant for op_s_{rri,rxi}_rot
69
target/arm: Use tcg_constant for MOVW, UMAAL, CRC32
70
target/arm: Use tcg_constant for v7m MRS, MSR
71
target/arm: Use tcg_constant for TT, SAT, SMMLA
72
target/arm: Use tcg_constant in LDM, STM
73
target/arm: Use tcg_constant in CLRM, DLS, WLS, LE
74
target/arm: Use tcg_constant in trans_CPS_v7m
75
target/arm: Use tcg_constant in trans_CSEL
76
target/arm: Use tcg_constant for trans_INDEX_*
77
target/arm: Use tcg_constant in SINCDEC, INCDEC
78
target/arm: Use tcg_constant in FCPY, CPY
79
target/arm: Use tcg_constant in {incr, wrap}_last_active
80
target/arm: Use tcg_constant in do_clast_scalar
81
target/arm: Use tcg_constant in WHILE
82
target/arm: Use tcg_constant in LD1, ST1
83
target/arm: Use tcg_constant in SUBR
84
target/arm: Use tcg_constant in do_zzi_{sat, ool}, do_fp_imm
85
target/arm: Use tcg_constant for predicate descriptors
86
target/arm: Use tcg_constant for do_brk{2,3}
87
target/arm: Use tcg_constant for vector descriptor
88
target/arm: Use field names for accessing DBGWCRn
38
89
39
Richard Henderson (7):
90
docs/system/arm/emulation.rst | 2 +
40
target/arm: Implement FMOV (general) for fp16
91
hw/arm/smmuv3-internal.h | 2 +-
41
target/arm: Early exit after unallocated_encoding in disas_fp_int_conv
92
include/hw/arm/smmu-common.h | 1 +
42
target/arm: Implement FCVT (scalar, integer) for fp16
93
target/arm/internals.h | 12 ++
43
target/arm: Implement FCVT (scalar, fixed-point) for fp16
94
hw/arm/smmuv3.c | 17 +--
44
target/arm: Introduce and use read_fp_hreg
95
target/arm/cpu.c | 9 ++
45
target/arm: Implement FP data-processing (2 source) for fp16
96
target/arm/cpu64.c | 2 +
46
target/arm: Implement FP data-processing (3 source) for fp16
97
target/arm/debug_helper.c | 10 +-
47
98
target/arm/helper.c | 8 +-
48
include/qemu/log.h | 1 +
99
target/arm/kvm64.c | 14 +-
49
target/arm/helper-a64.h | 2 +
100
target/arm/translate-a64.c | 301 +++++++++++++-----------------------------
50
target/arm/helper.h | 6 +
101
target/arm/translate-sve.c | 202 ++++++++++------------------
51
accel/tcg/cpu-exec.c | 9 +-
102
target/arm/translate.c | 244 ++++++++++++----------------------
52
fpu/softfloat.c | 6 +-
103
13 files changed, 293 insertions(+), 531 deletions(-)
53
hw/sd/sd.c | 2 +-
54
target/arm/cpu.c | 2 +
55
target/arm/helper-a64.c | 10 ++
56
target/arm/helper.c | 38 +++-
57
target/arm/translate-a64.c | 421 ++++++++++++++++++++++++++++++++++++++-------
58
util/log.c | 2 +
59
11 files changed, 428 insertions(+), 71 deletions(-)
60
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-2-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-a64.c | 12 ++++--------
9
1 file changed, 4 insertions(+), 8 deletions(-)
10
11
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-a64.c
14
+++ b/target/arm/translate-a64.c
15
@@ -XXX,XX +XXX,XX @@ static void gen_address_with_allocation_tag0(TCGv_i64 dst, TCGv_i64 src)
16
static void gen_probe_access(DisasContext *s, TCGv_i64 ptr,
17
MMUAccessType acc, int log2_size)
18
{
19
- TCGv_i32 t_acc = tcg_const_i32(acc);
20
- TCGv_i32 t_idx = tcg_const_i32(get_mem_index(s));
21
- TCGv_i32 t_size = tcg_const_i32(1 << log2_size);
22
-
23
- gen_helper_probe_access(cpu_env, ptr, t_acc, t_idx, t_size);
24
- tcg_temp_free_i32(t_acc);
25
- tcg_temp_free_i32(t_idx);
26
- tcg_temp_free_i32(t_size);
27
+ gen_helper_probe_access(cpu_env, ptr,
28
+ tcg_constant_i32(acc),
29
+ tcg_constant_i32(get_mem_index(s)),
30
+ tcg_constant_i32(1 << log2_size));
31
}
32
33
/*
34
--
35
2.25.1
diff view generated by jsdifflib
1
From: Richard Henderson <richard.henderson@linaro.org>
1
From: Richard Henderson <richard.henderson@linaro.org>
2
2
3
Cc: qemu-stable@nongnu.org
4
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
5
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
6
Tested-by: Alex Bennée <alex.bennee@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
7
Message-id: 20180512003217.9105-5-richard.henderson@linaro.org
5
Message-id: 20220426163043.100432-3-richard.henderson@linaro.org
8
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9
---
7
---
10
target/arm/translate-a64.c | 17 +++++++++++++++--
8
target/arm/translate-a64.c | 10 ++--------
11
1 file changed, 15 insertions(+), 2 deletions(-)
9
1 file changed, 2 insertions(+), 8 deletions(-)
12
10
13
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
11
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
14
index XXXXXXX..XXXXXXX 100644
12
index XXXXXXX..XXXXXXX 100644
15
--- a/target/arm/translate-a64.c
13
--- a/target/arm/translate-a64.c
16
+++ b/target/arm/translate-a64.c
14
+++ b/target/arm/translate-a64.c
17
@@ -XXX,XX +XXX,XX @@ static void disas_fp_fixed_conv(DisasContext *s, uint32_t insn)
15
@@ -XXX,XX +XXX,XX @@ static TCGv_i64 gen_mte_check1_mmuidx(DisasContext *s, TCGv_i64 addr,
18
bool sf = extract32(insn, 31, 1);
16
int core_idx)
19
bool itof;
17
{
20
18
if (tag_checked && s->mte_active[is_unpriv]) {
21
- if (sbit || (type > 1)
19
- TCGv_i32 tcg_desc;
22
- || (!sf && scale < 32)) {
20
TCGv_i64 ret;
23
+ if (sbit || (!sf && scale < 32)) {
21
int desc = 0;
24
+ unallocated_encoding(s);
22
25
+ return;
23
@@ -XXX,XX +XXX,XX @@ static TCGv_i64 gen_mte_check1_mmuidx(DisasContext *s, TCGv_i64 addr,
26
+ }
24
desc = FIELD_DP32(desc, MTEDESC, TCMA, s->tcma);
27
+
25
desc = FIELD_DP32(desc, MTEDESC, WRITE, is_write);
28
+ switch (type) {
26
desc = FIELD_DP32(desc, MTEDESC, SIZEM1, (1 << log2_size) - 1);
29
+ case 0: /* float32 */
27
- tcg_desc = tcg_const_i32(desc);
30
+ case 1: /* float64 */
28
31
+ break;
29
ret = new_tmp_a64(s);
32
+ case 3: /* float16 */
30
- gen_helper_mte_check(ret, cpu_env, tcg_desc, addr);
33
+ if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
31
- tcg_temp_free_i32(tcg_desc);
34
+ break;
32
+ gen_helper_mte_check(ret, cpu_env, tcg_constant_i32(desc), addr);
35
+ }
33
36
+ /* fallthru */
34
return ret;
37
+ default:
35
}
38
unallocated_encoding(s);
36
@@ -XXX,XX +XXX,XX @@ TCGv_i64 gen_mte_checkN(DisasContext *s, TCGv_i64 addr, bool is_write,
39
return;
37
bool tag_checked, int size)
38
{
39
if (tag_checked && s->mte_active[0]) {
40
- TCGv_i32 tcg_desc;
41
TCGv_i64 ret;
42
int desc = 0;
43
44
@@ -XXX,XX +XXX,XX @@ TCGv_i64 gen_mte_checkN(DisasContext *s, TCGv_i64 addr, bool is_write,
45
desc = FIELD_DP32(desc, MTEDESC, TCMA, s->tcma);
46
desc = FIELD_DP32(desc, MTEDESC, WRITE, is_write);
47
desc = FIELD_DP32(desc, MTEDESC, SIZEM1, size - 1);
48
- tcg_desc = tcg_const_i32(desc);
49
50
ret = new_tmp_a64(s);
51
- gen_helper_mte_check(ret, cpu_env, tcg_desc, addr);
52
- tcg_temp_free_i32(tcg_desc);
53
+ gen_helper_mte_check(ret, cpu_env, tcg_constant_i32(desc), addr);
54
55
return ret;
40
}
56
}
41
--
57
--
42
2.17.0
58
2.25.1
43
44
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-4-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-a64.c | 11 ++---------
9
1 file changed, 2 insertions(+), 9 deletions(-)
10
11
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-a64.c
14
+++ b/target/arm/translate-a64.c
15
@@ -XXX,XX +XXX,XX @@ static void gen_rebuild_hflags(DisasContext *s)
16
17
static void gen_exception_internal(int excp)
18
{
19
- TCGv_i32 tcg_excp = tcg_const_i32(excp);
20
-
21
assert(excp_is_internal(excp));
22
- gen_helper_exception_internal(cpu_env, tcg_excp);
23
- tcg_temp_free_i32(tcg_excp);
24
+ gen_helper_exception_internal(cpu_env, tcg_constant_i32(excp));
25
}
26
27
static void gen_exception_internal_insn(DisasContext *s, uint64_t pc, int excp)
28
@@ -XXX,XX +XXX,XX @@ static void gen_exception_internal_insn(DisasContext *s, uint64_t pc, int excp)
29
30
static void gen_exception_bkpt_insn(DisasContext *s, uint32_t syndrome)
31
{
32
- TCGv_i32 tcg_syn;
33
-
34
gen_a64_set_pc_im(s->pc_curr);
35
- tcg_syn = tcg_const_i32(syndrome);
36
- gen_helper_exception_bkpt_insn(cpu_env, tcg_syn);
37
- tcg_temp_free_i32(tcg_syn);
38
+ gen_helper_exception_bkpt_insn(cpu_env, tcg_constant_i32(syndrome));
39
s->base.is_jmp = DISAS_NORETURN;
40
}
41
42
--
43
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Note that tmp was doing double-duty as zero
4
and then later as a temporary in its own right.
5
Split the use of 0 to a new variable 'zero'.
6
7
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
9
Message-id: 20220426163043.100432-5-richard.henderson@linaro.org
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
11
---
12
target/arm/translate-a64.c | 26 +++++++++++++-------------
13
1 file changed, 13 insertions(+), 13 deletions(-)
14
15
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
16
index XXXXXXX..XXXXXXX 100644
17
--- a/target/arm/translate-a64.c
18
+++ b/target/arm/translate-a64.c
19
@@ -XXX,XX +XXX,XX @@ static void gen_adc(int sf, TCGv_i64 dest, TCGv_i64 t0, TCGv_i64 t1)
20
static void gen_adc_CC(int sf, TCGv_i64 dest, TCGv_i64 t0, TCGv_i64 t1)
21
{
22
if (sf) {
23
- TCGv_i64 result, cf_64, vf_64, tmp;
24
- result = tcg_temp_new_i64();
25
- cf_64 = tcg_temp_new_i64();
26
- vf_64 = tcg_temp_new_i64();
27
- tmp = tcg_const_i64(0);
28
+ TCGv_i64 result = tcg_temp_new_i64();
29
+ TCGv_i64 cf_64 = tcg_temp_new_i64();
30
+ TCGv_i64 vf_64 = tcg_temp_new_i64();
31
+ TCGv_i64 tmp = tcg_temp_new_i64();
32
+ TCGv_i64 zero = tcg_constant_i64(0);
33
34
tcg_gen_extu_i32_i64(cf_64, cpu_CF);
35
- tcg_gen_add2_i64(result, cf_64, t0, tmp, cf_64, tmp);
36
- tcg_gen_add2_i64(result, cf_64, result, cf_64, t1, tmp);
37
+ tcg_gen_add2_i64(result, cf_64, t0, zero, cf_64, zero);
38
+ tcg_gen_add2_i64(result, cf_64, result, cf_64, t1, zero);
39
tcg_gen_extrl_i64_i32(cpu_CF, cf_64);
40
gen_set_NZ64(result);
41
42
@@ -XXX,XX +XXX,XX @@ static void gen_adc_CC(int sf, TCGv_i64 dest, TCGv_i64 t0, TCGv_i64 t1)
43
tcg_temp_free_i64(cf_64);
44
tcg_temp_free_i64(result);
45
} else {
46
- TCGv_i32 t0_32, t1_32, tmp;
47
- t0_32 = tcg_temp_new_i32();
48
- t1_32 = tcg_temp_new_i32();
49
- tmp = tcg_const_i32(0);
50
+ TCGv_i32 t0_32 = tcg_temp_new_i32();
51
+ TCGv_i32 t1_32 = tcg_temp_new_i32();
52
+ TCGv_i32 tmp = tcg_temp_new_i32();
53
+ TCGv_i32 zero = tcg_constant_i32(0);
54
55
tcg_gen_extrl_i64_i32(t0_32, t0);
56
tcg_gen_extrl_i64_i32(t1_32, t1);
57
- tcg_gen_add2_i32(cpu_NF, cpu_CF, t0_32, tmp, cpu_CF, tmp);
58
- tcg_gen_add2_i32(cpu_NF, cpu_CF, cpu_NF, cpu_CF, t1_32, tmp);
59
+ tcg_gen_add2_i32(cpu_NF, cpu_CF, t0_32, zero, cpu_CF, zero);
60
+ tcg_gen_add2_i32(cpu_NF, cpu_CF, cpu_NF, cpu_CF, t1_32, zero);
61
62
tcg_gen_mov_i32(cpu_ZF, cpu_NF);
63
tcg_gen_xor_i32(cpu_VF, cpu_NF, t0_32);
64
--
65
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-6-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-a64.c | 13 +++----------
9
1 file changed, 3 insertions(+), 10 deletions(-)
10
11
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-a64.c
14
+++ b/target/arm/translate-a64.c
15
@@ -XXX,XX +XXX,XX @@ static void gen_axflag(void)
16
static void handle_msr_i(DisasContext *s, uint32_t insn,
17
unsigned int op1, unsigned int op2, unsigned int crm)
18
{
19
- TCGv_i32 t1;
20
int op = op1 << 3 | op2;
21
22
/* End the TB by default, chaining is ok. */
23
@@ -XXX,XX +XXX,XX @@ static void handle_msr_i(DisasContext *s, uint32_t insn,
24
if (s->current_el == 0) {
25
goto do_unallocated;
26
}
27
- t1 = tcg_const_i32(crm & PSTATE_SP);
28
- gen_helper_msr_i_spsel(cpu_env, t1);
29
- tcg_temp_free_i32(t1);
30
+ gen_helper_msr_i_spsel(cpu_env, tcg_constant_i32(crm & PSTATE_SP));
31
break;
32
33
case 0x19: /* SSBS */
34
@@ -XXX,XX +XXX,XX @@ static void handle_msr_i(DisasContext *s, uint32_t insn,
35
break;
36
37
case 0x1e: /* DAIFSet */
38
- t1 = tcg_const_i32(crm);
39
- gen_helper_msr_i_daifset(cpu_env, t1);
40
- tcg_temp_free_i32(t1);
41
+ gen_helper_msr_i_daifset(cpu_env, tcg_constant_i32(crm));
42
break;
43
44
case 0x1f: /* DAIFClear */
45
- t1 = tcg_const_i32(crm);
46
- gen_helper_msr_i_daifclear(cpu_env, t1);
47
- tcg_temp_free_i32(t1);
48
+ gen_helper_msr_i_daifclear(cpu_env, tcg_constant_i32(crm));
49
/* For DAIFClear, exit the cpu loop to re-evaluate pending IRQs. */
50
s->base.is_jmp = DISAS_UPDATE_EXIT;
51
break;
52
--
53
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-7-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-a64.c | 31 +++++++++----------------------
9
1 file changed, 9 insertions(+), 22 deletions(-)
10
11
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-a64.c
14
+++ b/target/arm/translate-a64.c
15
@@ -XXX,XX +XXX,XX @@ static void handle_sys(DisasContext *s, uint32_t insn, bool isread,
16
/* Emit code to perform further access permissions checks at
17
* runtime; this may result in an exception.
18
*/
19
- TCGv_ptr tmpptr;
20
- TCGv_i32 tcg_syn, tcg_isread;
21
uint32_t syndrome;
22
23
- gen_a64_set_pc_im(s->pc_curr);
24
- tmpptr = tcg_const_ptr(ri);
25
syndrome = syn_aa64_sysregtrap(op0, op1, op2, crn, crm, rt, isread);
26
- tcg_syn = tcg_const_i32(syndrome);
27
- tcg_isread = tcg_const_i32(isread);
28
- gen_helper_access_check_cp_reg(cpu_env, tmpptr, tcg_syn, tcg_isread);
29
- tcg_temp_free_ptr(tmpptr);
30
- tcg_temp_free_i32(tcg_syn);
31
- tcg_temp_free_i32(tcg_isread);
32
+ gen_a64_set_pc_im(s->pc_curr);
33
+ gen_helper_access_check_cp_reg(cpu_env,
34
+ tcg_constant_ptr(ri),
35
+ tcg_constant_i32(syndrome),
36
+ tcg_constant_i32(isread));
37
} else if (ri->type & ARM_CP_RAISES_EXC) {
38
/*
39
* The readfn or writefn might raise an exception;
40
@@ -XXX,XX +XXX,XX @@ static void handle_sys(DisasContext *s, uint32_t insn, bool isread,
41
case ARM_CP_DC_ZVA:
42
/* Writes clear the aligned block of memory which rt points into. */
43
if (s->mte_active[0]) {
44
- TCGv_i32 t_desc;
45
int desc = 0;
46
47
desc = FIELD_DP32(desc, MTEDESC, MIDX, get_mem_index(s));
48
desc = FIELD_DP32(desc, MTEDESC, TBI, s->tbid);
49
desc = FIELD_DP32(desc, MTEDESC, TCMA, s->tcma);
50
- t_desc = tcg_const_i32(desc);
51
52
tcg_rt = new_tmp_a64(s);
53
- gen_helper_mte_check_zva(tcg_rt, cpu_env, t_desc, cpu_reg(s, rt));
54
- tcg_temp_free_i32(t_desc);
55
+ gen_helper_mte_check_zva(tcg_rt, cpu_env,
56
+ tcg_constant_i32(desc), cpu_reg(s, rt));
57
} else {
58
tcg_rt = clean_data_tbi(s, cpu_reg(s, rt));
59
}
60
@@ -XXX,XX +XXX,XX @@ static void handle_sys(DisasContext *s, uint32_t insn, bool isread,
61
if (ri->type & ARM_CP_CONST) {
62
tcg_gen_movi_i64(tcg_rt, ri->resetvalue);
63
} else if (ri->readfn) {
64
- TCGv_ptr tmpptr;
65
- tmpptr = tcg_const_ptr(ri);
66
- gen_helper_get_cp_reg64(tcg_rt, cpu_env, tmpptr);
67
- tcg_temp_free_ptr(tmpptr);
68
+ gen_helper_get_cp_reg64(tcg_rt, cpu_env, tcg_constant_ptr(ri));
69
} else {
70
tcg_gen_ld_i64(tcg_rt, cpu_env, ri->fieldoffset);
71
}
72
@@ -XXX,XX +XXX,XX @@ static void handle_sys(DisasContext *s, uint32_t insn, bool isread,
73
/* If not forbidden by access permissions, treat as WI */
74
return;
75
} else if (ri->writefn) {
76
- TCGv_ptr tmpptr;
77
- tmpptr = tcg_const_ptr(ri);
78
- gen_helper_set_cp_reg64(cpu_env, tmpptr, tcg_rt);
79
- tcg_temp_free_ptr(tmpptr);
80
+ gen_helper_set_cp_reg64(cpu_env, tcg_constant_ptr(ri), tcg_rt);
81
} else {
82
tcg_gen_st_i64(tcg_rt, cpu_env, ri->fieldoffset);
83
}
84
--
85
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-8-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-a64.c | 5 +----
9
1 file changed, 1 insertion(+), 4 deletions(-)
10
11
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-a64.c
14
+++ b/target/arm/translate-a64.c
15
@@ -XXX,XX +XXX,XX @@ static void disas_exc(DisasContext *s, uint32_t insn)
16
int opc = extract32(insn, 21, 3);
17
int op2_ll = extract32(insn, 0, 5);
18
int imm16 = extract32(insn, 5, 16);
19
- TCGv_i32 tmp;
20
21
switch (opc) {
22
case 0:
23
@@ -XXX,XX +XXX,XX @@ static void disas_exc(DisasContext *s, uint32_t insn)
24
break;
25
}
26
gen_a64_set_pc_im(s->pc_curr);
27
- tmp = tcg_const_i32(syn_aa64_smc(imm16));
28
- gen_helper_pre_smc(cpu_env, tmp);
29
- tcg_temp_free_i32(tmp);
30
+ gen_helper_pre_smc(cpu_env, tcg_constant_i32(syn_aa64_smc(imm16)));
31
gen_ss_advance(s);
32
gen_exception_insn(s, s->base.pc_next, EXCP_SMC,
33
syn_aa64_smc(imm16), 3);
34
--
35
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-9-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-a64.c | 6 ++----
9
1 file changed, 2 insertions(+), 4 deletions(-)
10
11
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-a64.c
14
+++ b/target/arm/translate-a64.c
15
@@ -XXX,XX +XXX,XX @@ static void gen_compare_and_swap_pair(DisasContext *s, int rs, int rt,
16
tcg_temp_free_i64(cmp);
17
} else if (tb_cflags(s->base.tb) & CF_PARALLEL) {
18
if (HAVE_CMPXCHG128) {
19
- TCGv_i32 tcg_rs = tcg_const_i32(rs);
20
+ TCGv_i32 tcg_rs = tcg_constant_i32(rs);
21
if (s->be_data == MO_LE) {
22
gen_helper_casp_le_parallel(cpu_env, tcg_rs,
23
clean_addr, t1, t2);
24
@@ -XXX,XX +XXX,XX @@ static void gen_compare_and_swap_pair(DisasContext *s, int rs, int rt,
25
gen_helper_casp_be_parallel(cpu_env, tcg_rs,
26
clean_addr, t1, t2);
27
}
28
- tcg_temp_free_i32(tcg_rs);
29
} else {
30
gen_helper_exit_atomic(cpu_env);
31
s->base.is_jmp = DISAS_NORETURN;
32
@@ -XXX,XX +XXX,XX @@ static void gen_compare_and_swap_pair(DisasContext *s, int rs, int rt,
33
TCGv_i64 a2 = tcg_temp_new_i64();
34
TCGv_i64 c1 = tcg_temp_new_i64();
35
TCGv_i64 c2 = tcg_temp_new_i64();
36
- TCGv_i64 zero = tcg_const_i64(0);
37
+ TCGv_i64 zero = tcg_constant_i64(0);
38
39
/* Load the two words, in memory order. */
40
tcg_gen_qemu_ld_i64(d1, clean_addr, memidx,
41
@@ -XXX,XX +XXX,XX @@ static void gen_compare_and_swap_pair(DisasContext *s, int rs, int rt,
42
tcg_temp_free_i64(a2);
43
tcg_temp_free_i64(c1);
44
tcg_temp_free_i64(c2);
45
- tcg_temp_free_i64(zero);
46
47
/* Write back the data from memory to Rs. */
48
tcg_gen_mov_i64(s1, d1);
49
--
50
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-10-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-a64.c | 3 +--
9
1 file changed, 1 insertion(+), 2 deletions(-)
10
11
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-a64.c
14
+++ b/target/arm/translate-a64.c
15
@@ -XXX,XX +XXX,XX @@ static void disas_ld_lit(DisasContext *s, uint32_t insn)
16
17
tcg_rt = cpu_reg(s, rt);
18
19
- clean_addr = tcg_const_i64(s->pc_curr + imm);
20
+ clean_addr = tcg_constant_i64(s->pc_curr + imm);
21
if (is_vector) {
22
do_fp_ld(s, rt, clean_addr, size);
23
} else {
24
@@ -XXX,XX +XXX,XX @@ static void disas_ld_lit(DisasContext *s, uint32_t insn)
25
do_gpr_ld(s, tcg_rt, clean_addr, size + is_signed * MO_SIGN,
26
false, true, rt, iss_sf, false);
27
}
28
- tcg_temp_free_i64(clean_addr);
29
}
30
31
/*
32
--
33
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-11-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-a64.c | 9 +++------
9
1 file changed, 3 insertions(+), 6 deletions(-)
10
11
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-a64.c
14
+++ b/target/arm/translate-a64.c
15
@@ -XXX,XX +XXX,XX @@ static void disas_ldst_multiple_struct(DisasContext *s, uint32_t insn)
16
mop = endian | size | align;
17
18
elements = (is_q ? 16 : 8) >> size;
19
- tcg_ebytes = tcg_const_i64(1 << size);
20
+ tcg_ebytes = tcg_constant_i64(1 << size);
21
for (r = 0; r < rpt; r++) {
22
int e;
23
for (e = 0; e < elements; e++) {
24
@@ -XXX,XX +XXX,XX @@ static void disas_ldst_multiple_struct(DisasContext *s, uint32_t insn)
25
}
26
}
27
}
28
- tcg_temp_free_i64(tcg_ebytes);
29
30
if (!is_store) {
31
/* For non-quad operations, setting a slice of the low
32
@@ -XXX,XX +XXX,XX @@ static void disas_ldst_single_struct(DisasContext *s, uint32_t insn)
33
total);
34
mop = finalize_memop(s, scale);
35
36
- tcg_ebytes = tcg_const_i64(1 << scale);
37
+ tcg_ebytes = tcg_constant_i64(1 << scale);
38
for (xs = 0; xs < selem; xs++) {
39
if (replicate) {
40
/* Load and replicate to all elements */
41
@@ -XXX,XX +XXX,XX @@ static void disas_ldst_single_struct(DisasContext *s, uint32_t insn)
42
tcg_gen_add_i64(clean_addr, clean_addr, tcg_ebytes);
43
rt = (rt + 1) % 32;
44
}
45
- tcg_temp_free_i64(tcg_ebytes);
46
47
if (is_postidx) {
48
if (rm == 31) {
49
@@ -XXX,XX +XXX,XX @@ static void disas_ldst_tag(DisasContext *s, uint32_t insn)
50
51
if (is_zero) {
52
TCGv_i64 clean_addr = clean_data_tbi(s, addr);
53
- TCGv_i64 tcg_zero = tcg_const_i64(0);
54
+ TCGv_i64 tcg_zero = tcg_constant_i64(0);
55
int mem_index = get_mem_index(s);
56
int i, n = (1 + is_pair) << LOG2_TAG_GRANULE;
57
58
@@ -XXX,XX +XXX,XX @@ static void disas_ldst_tag(DisasContext *s, uint32_t insn)
59
tcg_gen_addi_i64(clean_addr, clean_addr, 8);
60
tcg_gen_qemu_st_i64(tcg_zero, clean_addr, mem_index, MO_UQ);
61
}
62
- tcg_temp_free_i64(tcg_zero);
63
}
64
65
if (index != 0) {
66
--
67
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-12-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-a64.c | 12 ++++--------
9
1 file changed, 4 insertions(+), 8 deletions(-)
10
11
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-a64.c
14
+++ b/target/arm/translate-a64.c
15
@@ -XXX,XX +XXX,XX @@ static void disas_add_sub_imm(DisasContext *s, uint32_t insn)
16
tcg_gen_addi_i64(tcg_result, tcg_rn, imm);
17
}
18
} else {
19
- TCGv_i64 tcg_imm = tcg_const_i64(imm);
20
+ TCGv_i64 tcg_imm = tcg_constant_i64(imm);
21
if (sub_op) {
22
gen_sub_CC(is_64bit, tcg_result, tcg_rn, tcg_imm);
23
} else {
24
gen_add_CC(is_64bit, tcg_result, tcg_rn, tcg_imm);
25
}
26
- tcg_temp_free_i64(tcg_imm);
27
}
28
29
if (is_64bit) {
30
@@ -XXX,XX +XXX,XX @@ static void disas_add_sub_imm_with_tags(DisasContext *s, uint32_t insn)
31
tcg_rd = cpu_reg_sp(s, rd);
32
33
if (s->ata) {
34
- TCGv_i32 offset = tcg_const_i32(imm);
35
- TCGv_i32 tag_offset = tcg_const_i32(uimm4);
36
-
37
- gen_helper_addsubg(tcg_rd, cpu_env, tcg_rn, offset, tag_offset);
38
- tcg_temp_free_i32(tag_offset);
39
- tcg_temp_free_i32(offset);
40
+ gen_helper_addsubg(tcg_rd, cpu_env, tcg_rn,
41
+ tcg_constant_i32(imm),
42
+ tcg_constant_i32(uimm4));
43
} else {
44
tcg_gen_addi_i64(tcg_rd, tcg_rn, imm);
45
gen_address_with_allocation_tag0(tcg_rd, tcg_rd);
46
--
47
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-13-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-a64.c | 5 +----
9
1 file changed, 1 insertion(+), 4 deletions(-)
10
11
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-a64.c
14
+++ b/target/arm/translate-a64.c
15
@@ -XXX,XX +XXX,XX @@ static void disas_movw_imm(DisasContext *s, uint32_t insn)
16
int opc = extract32(insn, 29, 2);
17
int pos = extract32(insn, 21, 2) << 4;
18
TCGv_i64 tcg_rd = cpu_reg(s, rd);
19
- TCGv_i64 tcg_imm;
20
21
if (!sf && (pos >= 32)) {
22
unallocated_encoding(s);
23
@@ -XXX,XX +XXX,XX @@ static void disas_movw_imm(DisasContext *s, uint32_t insn)
24
tcg_gen_movi_i64(tcg_rd, imm);
25
break;
26
case 3: /* MOVK */
27
- tcg_imm = tcg_const_i64(imm);
28
- tcg_gen_deposit_i64(tcg_rd, tcg_rd, tcg_imm, pos, 16);
29
- tcg_temp_free_i64(tcg_imm);
30
+ tcg_gen_deposit_i64(tcg_rd, tcg_rd, tcg_constant_i64(imm), pos, 16);
31
if (!sf) {
32
tcg_gen_ext32u_i64(tcg_rd, tcg_rd);
33
}
34
--
35
2.25.1
diff view generated by jsdifflib
1
From: Alex Bennée <alex.bennee@linaro.org>
1
From: Richard Henderson <richard.henderson@linaro.org>
2
2
3
We are meant to explicitly pass fpst, not cpu_env.
4
5
Cc: qemu-stable@nongnu.org
6
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
7
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
8
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
9
Tested-by: Alex Bennée <alex.bennee@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
10
Message-id: 20180512003217.9105-12-richard.henderson@linaro.org
5
Message-id: 20220426163043.100432-14-richard.henderson@linaro.org
11
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
12
---
7
---
13
target/arm/translate-a64.c | 3 ++-
8
target/arm/translate-a64.c | 6 +-----
14
1 file changed, 2 insertions(+), 1 deletion(-)
9
1 file changed, 1 insertion(+), 5 deletions(-)
15
10
16
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
11
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
17
index XXXXXXX..XXXXXXX 100644
12
index XXXXXXX..XXXXXXX 100644
18
--- a/target/arm/translate-a64.c
13
--- a/target/arm/translate-a64.c
19
+++ b/target/arm/translate-a64.c
14
+++ b/target/arm/translate-a64.c
20
@@ -XXX,XX +XXX,XX @@ static void handle_fp_1src_half(DisasContext *s, int opcode, int rd, int rn)
15
@@ -XXX,XX +XXX,XX @@ static void shift_reg_imm(TCGv_i64 dst, TCGv_i64 src, int sf,
21
tcg_gen_xori_i32(tcg_res, tcg_op, 0x8000);
16
if (shift_i == 0) {
22
break;
17
tcg_gen_mov_i64(dst, src);
23
case 0x3: /* FSQRT */
18
} else {
24
- gen_helper_sqrt_f16(tcg_res, tcg_op, cpu_env);
19
- TCGv_i64 shift_const;
25
+ fpst = get_fpstatus_ptr(true);
20
-
26
+ gen_helper_sqrt_f16(tcg_res, tcg_op, fpst);
21
- shift_const = tcg_const_i64(shift_i);
27
break;
22
- shift_reg(dst, src, sf, shift_type, shift_const);
28
case 0x8: /* FRINTN */
23
- tcg_temp_free_i64(shift_const);
29
case 0x9: /* FRINTP */
24
+ shift_reg(dst, src, sf, shift_type, tcg_constant_i64(shift_i));
25
}
26
}
27
30
--
28
--
31
2.17.0
29
2.25.1
32
33
diff view generated by jsdifflib
1
From: Richard Henderson <richard.henderson@linaro.org>
1
From: Richard Henderson <richard.henderson@linaro.org>
2
2
3
Cc: qemu-stable@nongnu.org
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
5
Message-id: 20220426163043.100432-15-richard.henderson@linaro.org
6
Tested-by: Alex Bennée <alex.bennee@linaro.org>
7
Message-id: 20180512003217.9105-6-richard.henderson@linaro.org
8
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9
---
7
---
10
target/arm/translate-a64.c | 30 ++++++++++++++----------------
8
target/arm/translate-a64.c | 3 +--
11
1 file changed, 14 insertions(+), 16 deletions(-)
9
1 file changed, 1 insertion(+), 2 deletions(-)
12
10
13
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
11
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
14
index XXXXXXX..XXXXXXX 100644
12
index XXXXXXX..XXXXXXX 100644
15
--- a/target/arm/translate-a64.c
13
--- a/target/arm/translate-a64.c
16
+++ b/target/arm/translate-a64.c
14
+++ b/target/arm/translate-a64.c
17
@@ -XXX,XX +XXX,XX @@ static TCGv_i32 read_fp_sreg(DisasContext *s, int reg)
15
@@ -XXX,XX +XXX,XX @@ static void disas_cond_select(DisasContext *s, uint32_t insn)
18
return v;
16
tcg_rd = cpu_reg(s, rd);
19
}
17
20
18
a64_test_cc(&c, cond);
21
+static TCGv_i32 read_fp_hreg(DisasContext *s, int reg)
19
- zero = tcg_const_i64(0);
22
+{
20
+ zero = tcg_constant_i64(0);
23
+ TCGv_i32 v = tcg_temp_new_i32();
21
24
+
22
if (rn == 31 && rm == 31 && (else_inc ^ else_inv)) {
25
+ tcg_gen_ld16u_i32(v, cpu_env, fp_reg_offset(s, reg, MO_16));
23
/* CSET & CSETM. */
26
+ return v;
24
@@ -XXX,XX +XXX,XX @@ static void disas_cond_select(DisasContext *s, uint32_t insn)
27
+}
25
tcg_gen_movcond_i64(c.cond, tcg_rd, c.value, zero, t_true, t_false);
28
+
29
/* Clear the bits above an N-bit vector, for N = (is_q ? 128 : 64).
30
* If SVE is not enabled, then there are only 128 bits in the vector.
31
*/
32
@@ -XXX,XX +XXX,XX @@ static void disas_fp_csel(DisasContext *s, uint32_t insn)
33
static void handle_fp_1src_half(DisasContext *s, int opcode, int rd, int rn)
34
{
35
TCGv_ptr fpst = NULL;
36
- TCGv_i32 tcg_op = tcg_temp_new_i32();
37
+ TCGv_i32 tcg_op = read_fp_hreg(s, rn);
38
TCGv_i32 tcg_res = tcg_temp_new_i32();
39
40
- read_vec_element_i32(s, tcg_op, rn, 0, MO_16);
41
-
42
switch (opcode) {
43
case 0x0: /* FMOV */
44
tcg_gen_mov_i32(tcg_res, tcg_op);
45
@@ -XXX,XX +XXX,XX @@ static void disas_simd_scalar_three_reg_diff(DisasContext *s, uint32_t insn)
46
tcg_temp_free_i64(tcg_op2);
47
tcg_temp_free_i64(tcg_res);
48
} else {
49
- TCGv_i32 tcg_op1 = tcg_temp_new_i32();
50
- TCGv_i32 tcg_op2 = tcg_temp_new_i32();
51
+ TCGv_i32 tcg_op1 = read_fp_hreg(s, rn);
52
+ TCGv_i32 tcg_op2 = read_fp_hreg(s, rm);
53
TCGv_i64 tcg_res = tcg_temp_new_i64();
54
55
- read_vec_element_i32(s, tcg_op1, rn, 0, MO_16);
56
- read_vec_element_i32(s, tcg_op2, rm, 0, MO_16);
57
-
58
gen_helper_neon_mull_s16(tcg_res, tcg_op1, tcg_op2);
59
gen_helper_neon_addl_saturate_s32(tcg_res, cpu_env, tcg_res, tcg_res);
60
61
@@ -XXX,XX +XXX,XX @@ static void disas_simd_scalar_three_reg_same_fp16(DisasContext *s,
62
63
fpst = get_fpstatus_ptr(true);
64
65
- tcg_op1 = tcg_temp_new_i32();
66
- tcg_op2 = tcg_temp_new_i32();
67
+ tcg_op1 = read_fp_hreg(s, rn);
68
+ tcg_op2 = read_fp_hreg(s, rm);
69
tcg_res = tcg_temp_new_i32();
70
71
- read_vec_element_i32(s, tcg_op1, rn, 0, MO_16);
72
- read_vec_element_i32(s, tcg_op2, rm, 0, MO_16);
73
-
74
switch (fpopcode) {
75
case 0x03: /* FMULX */
76
gen_helper_advsimd_mulxh(tcg_res, tcg_op1, tcg_op2, fpst);
77
@@ -XXX,XX +XXX,XX @@ static void disas_simd_two_reg_misc_fp16(DisasContext *s, uint32_t insn)
78
}
26
}
79
27
80
if (is_scalar) {
28
- tcg_temp_free_i64(zero);
81
- TCGv_i32 tcg_op = tcg_temp_new_i32();
29
a64_free_cc(&c);
82
+ TCGv_i32 tcg_op = read_fp_hreg(s, rn);
30
83
TCGv_i32 tcg_res = tcg_temp_new_i32();
31
if (!sf) {
84
85
- read_vec_element_i32(s, tcg_op, rn, 0, MO_16);
86
-
87
switch (fpop) {
88
case 0x1a: /* FCVTNS */
89
case 0x1b: /* FCVTMS */
90
--
32
--
91
2.17.0
33
2.25.1
92
93
diff view generated by jsdifflib
1
From: Richard Henderson <richard.henderson@linaro.org>
1
From: Richard Henderson <richard.henderson@linaro.org>
2
2
3
We missed all of the scalar fp16 fma operations.
4
5
Cc: qemu-stable@nongnu.org
6
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
7
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8
Tested-by: Alex Bennée <alex.bennee@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
9
Message-id: 20180512003217.9105-8-richard.henderson@linaro.org
5
Message-id: 20220426163043.100432-16-richard.henderson@linaro.org
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
11
---
7
---
12
target/arm/translate-a64.c | 48 ++++++++++++++++++++++++++++++++++++++
8
target/arm/translate-a64.c | 7 ++-----
13
1 file changed, 48 insertions(+)
9
1 file changed, 2 insertions(+), 5 deletions(-)
14
10
15
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
11
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
16
index XXXXXXX..XXXXXXX 100644
12
index XXXXXXX..XXXXXXX 100644
17
--- a/target/arm/translate-a64.c
13
--- a/target/arm/translate-a64.c
18
+++ b/target/arm/translate-a64.c
14
+++ b/target/arm/translate-a64.c
19
@@ -XXX,XX +XXX,XX @@ static void handle_fp_3src_double(DisasContext *s, bool o0, bool o1,
15
@@ -XXX,XX +XXX,XX @@ static void handle_rev16(DisasContext *s, unsigned int sf,
20
tcg_temp_free_i64(tcg_res);
16
TCGv_i64 tcg_rd = cpu_reg(s, rd);
17
TCGv_i64 tcg_tmp = tcg_temp_new_i64();
18
TCGv_i64 tcg_rn = read_cpu_reg(s, rn, sf);
19
- TCGv_i64 mask = tcg_const_i64(sf ? 0x00ff00ff00ff00ffull : 0x00ff00ff);
20
+ TCGv_i64 mask = tcg_constant_i64(sf ? 0x00ff00ff00ff00ffull : 0x00ff00ff);
21
22
tcg_gen_shri_i64(tcg_tmp, tcg_rn, 8);
23
tcg_gen_and_i64(tcg_rd, tcg_rn, mask);
24
@@ -XXX,XX +XXX,XX @@ static void handle_rev16(DisasContext *s, unsigned int sf,
25
tcg_gen_shli_i64(tcg_rd, tcg_rd, 8);
26
tcg_gen_or_i64(tcg_rd, tcg_rd, tcg_tmp);
27
28
- tcg_temp_free_i64(mask);
29
tcg_temp_free_i64(tcg_tmp);
21
}
30
}
22
31
23
+/* Floating-point data-processing (3 source) - half precision */
32
@@ -XXX,XX +XXX,XX @@ static void handle_crc32(DisasContext *s,
24
+static void handle_fp_3src_half(DisasContext *s, bool o0, bool o1,
25
+ int rd, int rn, int rm, int ra)
26
+{
27
+ TCGv_i32 tcg_op1, tcg_op2, tcg_op3;
28
+ TCGv_i32 tcg_res = tcg_temp_new_i32();
29
+ TCGv_ptr fpst = get_fpstatus_ptr(true);
30
+
31
+ tcg_op1 = read_fp_hreg(s, rn);
32
+ tcg_op2 = read_fp_hreg(s, rm);
33
+ tcg_op3 = read_fp_hreg(s, ra);
34
+
35
+ /* These are fused multiply-add, and must be done as one
36
+ * floating point operation with no rounding between the
37
+ * multiplication and addition steps.
38
+ * NB that doing the negations here as separate steps is
39
+ * correct : an input NaN should come out with its sign bit
40
+ * flipped if it is a negated-input.
41
+ */
42
+ if (o1 == true) {
43
+ tcg_gen_xori_i32(tcg_op3, tcg_op3, 0x8000);
44
+ }
45
+
46
+ if (o0 != o1) {
47
+ tcg_gen_xori_i32(tcg_op1, tcg_op1, 0x8000);
48
+ }
49
+
50
+ gen_helper_advsimd_muladdh(tcg_res, tcg_op1, tcg_op2, tcg_op3, fpst);
51
+
52
+ write_fp_sreg(s, rd, tcg_res);
53
+
54
+ tcg_temp_free_ptr(fpst);
55
+ tcg_temp_free_i32(tcg_op1);
56
+ tcg_temp_free_i32(tcg_op2);
57
+ tcg_temp_free_i32(tcg_op3);
58
+ tcg_temp_free_i32(tcg_res);
59
+}
60
+
61
/* Floating point data-processing (3 source)
62
* 31 30 29 28 24 23 22 21 20 16 15 14 10 9 5 4 0
63
* +---+---+---+-----------+------+----+------+----+------+------+------+
64
@@ -XXX,XX +XXX,XX @@ static void disas_fp_3src(DisasContext *s, uint32_t insn)
65
}
66
handle_fp_3src_double(s, o0, o1, rd, rn, rm, ra);
67
break;
68
+ case 3:
69
+ if (!arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
70
+ unallocated_encoding(s);
71
+ return;
72
+ }
73
+ if (!fp_access_check(s)) {
74
+ return;
75
+ }
76
+ handle_fp_3src_half(s, o0, o1, rd, rn, rm, ra);
77
+ break;
78
default:
79
unallocated_encoding(s);
80
}
33
}
34
35
tcg_acc = cpu_reg(s, rn);
36
- tcg_bytes = tcg_const_i32(1 << sz);
37
+ tcg_bytes = tcg_constant_i32(1 << sz);
38
39
if (crc32c) {
40
gen_helper_crc32c_64(cpu_reg(s, rd), tcg_acc, tcg_val, tcg_bytes);
41
} else {
42
gen_helper_crc32_64(cpu_reg(s, rd), tcg_acc, tcg_val, tcg_bytes);
43
}
44
-
45
- tcg_temp_free_i32(tcg_bytes);
46
}
47
48
/* Data-processing (2 source)
81
--
49
--
82
2.17.0
50
2.25.1
83
84
diff view generated by jsdifflib
1
From: Richard Henderson <richard.henderson@linaro.org>
1
From: Richard Henderson <richard.henderson@linaro.org>
2
2
3
No sense in emitting code after the exception.
3
Existing temp usage treats t1 as both zero and as a
4
temporary. Rearrange to only require one temporary,
5
so remove t1 and rename t2.
4
6
5
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
7
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
6
Tested-by: Alex Bennée <alex.bennee@linaro.org>
7
Message-id: 20180512003217.9105-3-richard.henderson@linaro.org
8
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
8
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
9
Message-id: 20220426163043.100432-17-richard.henderson@linaro.org
9
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10
---
11
---
11
target/arm/translate-a64.c | 2 +-
12
target/arm/translate-a64.c | 12 +++++-------
12
1 file changed, 1 insertion(+), 1 deletion(-)
13
1 file changed, 5 insertions(+), 7 deletions(-)
13
14
14
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
15
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
15
index XXXXXXX..XXXXXXX 100644
16
index XXXXXXX..XXXXXXX 100644
16
--- a/target/arm/translate-a64.c
17
--- a/target/arm/translate-a64.c
17
+++ b/target/arm/translate-a64.c
18
+++ b/target/arm/translate-a64.c
18
@@ -XXX,XX +XXX,XX @@ static void disas_fp_int_conv(DisasContext *s, uint32_t insn)
19
@@ -XXX,XX +XXX,XX @@ static void disas_data_proc_2src(DisasContext *s, uint32_t insn)
19
default:
20
if (sf == 0 || !dc_isar_feature(aa64_mte_insn_reg, s)) {
20
/* all other sf/type/rmode combinations are invalid */
21
goto do_unallocated;
21
unallocated_encoding(s);
22
} else {
22
- break;
23
- TCGv_i64 t1 = tcg_const_i64(1);
23
+ return;
24
- TCGv_i64 t2 = tcg_temp_new_i64();
25
+ TCGv_i64 t = tcg_temp_new_i64();
26
27
- tcg_gen_extract_i64(t2, cpu_reg_sp(s, rn), 56, 4);
28
- tcg_gen_shl_i64(t1, t1, t2);
29
- tcg_gen_or_i64(cpu_reg(s, rd), cpu_reg(s, rm), t1);
30
+ tcg_gen_extract_i64(t, cpu_reg_sp(s, rn), 56, 4);
31
+ tcg_gen_shl_i64(t, tcg_constant_i64(1), t);
32
+ tcg_gen_or_i64(cpu_reg(s, rd), cpu_reg(s, rm), t);
33
34
- tcg_temp_free_i64(t1);
35
- tcg_temp_free_i64(t2);
36
+ tcg_temp_free_i64(t);
24
}
37
}
25
38
break;
26
if (!fp_access_check(s)) {
39
case 8: /* LSLV */
27
--
40
--
28
2.17.0
41
2.25.1
29
30
diff view generated by jsdifflib
1
From: Alex Bennée <alex.bennee@linaro.org>
1
From: Richard Henderson <richard.henderson@linaro.org>
2
2
3
These were missed out from the rest of the half-precision work.
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
5
Cc: qemu-stable@nongnu.org
6
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
7
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
5
Message-id: 20220426163043.100432-18-richard.henderson@linaro.org
8
Tested-by: Alex Bennée <alex.bennee@linaro.org>
6
[PMM: Restore incorrectly removed free of t_false in disas_fp_csel()]
9
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
10
Message-id: 20180512003217.9105-10-richard.henderson@linaro.org
11
[rth: Fix erroneous check vs type]
12
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
13
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
14
---
8
---
15
target/arm/translate-a64.c | 31 +++++++++++++++++++++++++------
9
target/arm/translate-a64.c | 23 +++++++----------------
16
1 file changed, 25 insertions(+), 6 deletions(-)
10
1 file changed, 7 insertions(+), 16 deletions(-)
17
11
18
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
12
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
19
index XXXXXXX..XXXXXXX 100644
13
index XXXXXXX..XXXXXXX 100644
20
--- a/target/arm/translate-a64.c
14
--- a/target/arm/translate-a64.c
21
+++ b/target/arm/translate-a64.c
15
+++ b/target/arm/translate-a64.c
16
@@ -XXX,XX +XXX,XX @@ static void handle_fp_compare(DisasContext *s, int size,
17
18
tcg_vn = read_fp_dreg(s, rn);
19
if (cmp_with_zero) {
20
- tcg_vm = tcg_const_i64(0);
21
+ tcg_vm = tcg_constant_i64(0);
22
} else {
23
tcg_vm = read_fp_dreg(s, rm);
24
}
25
@@ -XXX,XX +XXX,XX @@ static void disas_fp_compare(DisasContext *s, uint32_t insn)
26
static void disas_fp_ccomp(DisasContext *s, uint32_t insn)
27
{
28
unsigned int mos, type, rm, cond, rn, op, nzcv;
29
- TCGv_i64 tcg_flags;
30
TCGLabel *label_continue = NULL;
31
int size;
32
33
@@ -XXX,XX +XXX,XX @@ static void disas_fp_ccomp(DisasContext *s, uint32_t insn)
34
label_continue = gen_new_label();
35
arm_gen_test_cc(cond, label_match);
36
/* nomatch: */
37
- tcg_flags = tcg_const_i64(nzcv << 28);
38
- gen_set_nzcv(tcg_flags);
39
- tcg_temp_free_i64(tcg_flags);
40
+ gen_set_nzcv(tcg_constant_i64(nzcv << 28));
41
tcg_gen_br(label_continue);
42
gen_set_label(label_match);
43
}
44
@@ -XXX,XX +XXX,XX @@ static void disas_fp_ccomp(DisasContext *s, uint32_t insn)
45
static void disas_fp_csel(DisasContext *s, uint32_t insn)
46
{
47
unsigned int mos, type, rm, cond, rn, rd;
48
- TCGv_i64 t_true, t_false, t_zero;
49
+ TCGv_i64 t_true, t_false;
50
DisasCompare64 c;
51
MemOp sz;
52
22
@@ -XXX,XX +XXX,XX @@ static void disas_fp_csel(DisasContext *s, uint32_t insn)
53
@@ -XXX,XX +XXX,XX @@ static void disas_fp_csel(DisasContext *s, uint32_t insn)
23
unsigned int mos, type, rm, cond, rn, rd;
54
read_vec_element(s, t_false, rm, 0, sz);
24
TCGv_i64 t_true, t_false, t_zero;
25
DisasCompare64 c;
26
+ TCGMemOp sz;
27
28
mos = extract32(insn, 29, 3);
29
- type = extract32(insn, 22, 2); /* 0 = single, 1 = double */
30
+ type = extract32(insn, 22, 2);
31
rm = extract32(insn, 16, 5);
32
cond = extract32(insn, 12, 4);
33
rn = extract32(insn, 5, 5);
34
rd = extract32(insn, 0, 5);
35
36
- if (mos || type > 1) {
37
+ if (mos) {
38
+ unallocated_encoding(s);
39
+ return;
40
+ }
41
+
42
+ switch (type) {
43
+ case 0:
44
+ sz = MO_32;
45
+ break;
46
+ case 1:
47
+ sz = MO_64;
48
+ break;
49
+ case 3:
50
+ sz = MO_16;
51
+ if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
52
+ break;
53
+ }
54
+ /* fallthru */
55
+ default:
56
unallocated_encoding(s);
57
return;
58
}
59
@@ -XXX,XX +XXX,XX @@ static void disas_fp_csel(DisasContext *s, uint32_t insn)
60
return;
61
}
62
63
- /* Zero extend sreg inputs to 64 bits now. */
64
+ /* Zero extend sreg & hreg inputs to 64 bits now. */
65
t_true = tcg_temp_new_i64();
66
t_false = tcg_temp_new_i64();
67
- read_vec_element(s, t_true, rn, 0, type ? MO_64 : MO_32);
68
- read_vec_element(s, t_false, rm, 0, type ? MO_64 : MO_32);
69
+ read_vec_element(s, t_true, rn, 0, sz);
70
+ read_vec_element(s, t_false, rm, 0, sz);
71
55
72
a64_test_cc(&c, cond);
56
a64_test_cc(&c, cond);
73
t_zero = tcg_const_i64(0);
57
- t_zero = tcg_const_i64(0);
74
@@ -XXX,XX +XXX,XX @@ static void disas_fp_csel(DisasContext *s, uint32_t insn)
58
- tcg_gen_movcond_i64(c.cond, t_true, c.value, t_zero, t_true, t_false);
59
- tcg_temp_free_i64(t_zero);
60
+ tcg_gen_movcond_i64(c.cond, t_true, c.value, tcg_constant_i64(0),
61
+ t_true, t_false);
75
tcg_temp_free_i64(t_false);
62
tcg_temp_free_i64(t_false);
76
a64_free_cc(&c);
63
a64_free_cc(&c);
77
64
78
- /* Note that sregs write back zeros to the high bits,
65
@@ -XXX,XX +XXX,XX @@ static void disas_fp_imm(DisasContext *s, uint32_t insn)
79
+ /* Note that sregs & hregs write back zeros to the high bits,
66
int type = extract32(insn, 22, 2);
80
and we've already done the zero-extension. */
67
int mos = extract32(insn, 29, 3);
81
write_fp_dreg(s, rd, t_true);
68
uint64_t imm;
82
tcg_temp_free_i64(t_true);
69
- TCGv_i64 tcg_res;
70
MemOp sz;
71
72
if (mos || imm5) {
73
@@ -XXX,XX +XXX,XX @@ static void disas_fp_imm(DisasContext *s, uint32_t insn)
74
}
75
76
imm = vfp_expand_imm(sz, imm8);
77
-
78
- tcg_res = tcg_const_i64(imm);
79
- write_fp_dreg(s, rd, tcg_res);
80
- tcg_temp_free_i64(tcg_res);
81
+ write_fp_dreg(s, rd, tcg_constant_i64(imm));
82
}
83
84
/* Handle floating point <=> fixed point conversions. Note that we can
85
@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
86
87
tcg_fpstatus = fpstatus_ptr(type == 3 ? FPST_FPCR_F16 : FPST_FPCR);
88
89
- tcg_shift = tcg_const_i32(64 - scale);
90
+ tcg_shift = tcg_constant_i32(64 - scale);
91
92
if (itof) {
93
TCGv_i64 tcg_int = cpu_reg(s, rn);
94
@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
95
}
96
97
tcg_temp_free_ptr(tcg_fpstatus);
98
- tcg_temp_free_i32(tcg_shift);
99
}
100
101
/* Floating point <-> fixed point conversions
83
--
102
--
84
2.17.0
103
2.25.1
85
86
diff view generated by jsdifflib
1
From: Richard Henderson <richard.henderson@linaro.org>
1
From: Richard Henderson <richard.henderson@linaro.org>
2
2
3
We missed all of the scalar fp16 binary operations.
4
5
Cc: qemu-stable@nongnu.org
6
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
7
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8
Tested-by: Alex Bennée <alex.bennee@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
9
Message-id: 20180512003217.9105-7-richard.henderson@linaro.org
5
Message-id: 20220426163043.100432-19-richard.henderson@linaro.org
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
11
---
7
---
12
target/arm/translate-a64.c | 65 ++++++++++++++++++++++++++++++++++++++
8
target/arm/translate-a64.c | 21 +++++----------------
13
1 file changed, 65 insertions(+)
9
1 file changed, 5 insertions(+), 16 deletions(-)
14
10
15
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
11
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
16
index XXXXXXX..XXXXXXX 100644
12
index XXXXXXX..XXXXXXX 100644
17
--- a/target/arm/translate-a64.c
13
--- a/target/arm/translate-a64.c
18
+++ b/target/arm/translate-a64.c
14
+++ b/target/arm/translate-a64.c
19
@@ -XXX,XX +XXX,XX @@ static void handle_fp_2src_double(DisasContext *s, int opcode,
15
@@ -XXX,XX +XXX,XX @@ static void handle_shri_with_rndacc(TCGv_i64 tcg_res, TCGv_i64 tcg_src,
20
tcg_temp_free_i64(tcg_res);
16
/* Deal with the rounding step */
17
if (round) {
18
if (extended_result) {
19
- TCGv_i64 tcg_zero = tcg_const_i64(0);
20
+ TCGv_i64 tcg_zero = tcg_constant_i64(0);
21
if (!is_u) {
22
/* take care of sign extending tcg_res */
23
tcg_gen_sari_i64(tcg_src_hi, tcg_src, 63);
24
@@ -XXX,XX +XXX,XX @@ static void handle_shri_with_rndacc(TCGv_i64 tcg_res, TCGv_i64 tcg_src,
25
tcg_src, tcg_zero,
26
tcg_rnd, tcg_zero);
27
}
28
- tcg_temp_free_i64(tcg_zero);
29
} else {
30
tcg_gen_add_i64(tcg_src, tcg_src, tcg_rnd);
31
}
32
@@ -XXX,XX +XXX,XX @@ static void handle_scalar_simd_shri(DisasContext *s,
33
}
34
35
if (round) {
36
- uint64_t round_const = 1ULL << (shift - 1);
37
- tcg_round = tcg_const_i64(round_const);
38
+ tcg_round = tcg_constant_i64(1ULL << (shift - 1));
39
} else {
40
tcg_round = NULL;
41
}
42
@@ -XXX,XX +XXX,XX @@ static void handle_scalar_simd_shri(DisasContext *s,
43
44
tcg_temp_free_i64(tcg_rn);
45
tcg_temp_free_i64(tcg_rd);
46
- if (round) {
47
- tcg_temp_free_i64(tcg_round);
48
- }
21
}
49
}
22
50
23
+/* Floating-point data-processing (2 source) - half precision */
51
/* SHL/SLI - Scalar shift left */
24
+static void handle_fp_2src_half(DisasContext *s, int opcode,
52
@@ -XXX,XX +XXX,XX @@ static void handle_vec_simd_sqshrn(DisasContext *s, bool is_scalar, bool is_q,
25
+ int rd, int rn, int rm)
53
tcg_final = tcg_const_i64(0);
26
+{
54
27
+ TCGv_i32 tcg_op1;
55
if (round) {
28
+ TCGv_i32 tcg_op2;
56
- uint64_t round_const = 1ULL << (shift - 1);
29
+ TCGv_i32 tcg_res;
57
- tcg_round = tcg_const_i64(round_const);
30
+ TCGv_ptr fpst;
58
+ tcg_round = tcg_constant_i64(1ULL << (shift - 1));
31
+
59
} else {
32
+ tcg_res = tcg_temp_new_i32();
60
tcg_round = NULL;
33
+ fpst = get_fpstatus_ptr(true);
61
}
34
+ tcg_op1 = read_fp_hreg(s, rn);
62
@@ -XXX,XX +XXX,XX @@ static void handle_vec_simd_sqshrn(DisasContext *s, bool is_scalar, bool is_q,
35
+ tcg_op2 = read_fp_hreg(s, rm);
63
write_vec_element(s, tcg_final, rd, 1, MO_64);
36
+
64
}
37
+ switch (opcode) {
65
38
+ case 0x0: /* FMUL */
66
- if (round) {
39
+ gen_helper_advsimd_mulh(tcg_res, tcg_op1, tcg_op2, fpst);
67
- tcg_temp_free_i64(tcg_round);
40
+ break;
68
- }
41
+ case 0x1: /* FDIV */
69
tcg_temp_free_i64(tcg_rn);
42
+ gen_helper_advsimd_divh(tcg_res, tcg_op1, tcg_op2, fpst);
70
tcg_temp_free_i64(tcg_rd);
43
+ break;
71
tcg_temp_free_i32(tcg_rd_narrowed);
44
+ case 0x2: /* FADD */
72
@@ -XXX,XX +XXX,XX @@ static void handle_simd_qshl(DisasContext *s, bool scalar, bool is_q,
45
+ gen_helper_advsimd_addh(tcg_res, tcg_op1, tcg_op2, fpst);
73
}
46
+ break;
74
47
+ case 0x3: /* FSUB */
75
if (size == 3) {
48
+ gen_helper_advsimd_subh(tcg_res, tcg_op1, tcg_op2, fpst);
76
- TCGv_i64 tcg_shift = tcg_const_i64(shift);
49
+ break;
77
+ TCGv_i64 tcg_shift = tcg_constant_i64(shift);
50
+ case 0x4: /* FMAX */
78
static NeonGenTwo64OpEnvFn * const fns[2][2] = {
51
+ gen_helper_advsimd_maxh(tcg_res, tcg_op1, tcg_op2, fpst);
79
{ gen_helper_neon_qshl_s64, gen_helper_neon_qshlu_s64 },
52
+ break;
80
{ NULL, gen_helper_neon_qshl_u64 },
53
+ case 0x5: /* FMIN */
81
@@ -XXX,XX +XXX,XX @@ static void handle_simd_qshl(DisasContext *s, bool scalar, bool is_q,
54
+ gen_helper_advsimd_minh(tcg_res, tcg_op1, tcg_op2, fpst);
82
55
+ break;
83
tcg_temp_free_i64(tcg_op);
56
+ case 0x6: /* FMAXNM */
57
+ gen_helper_advsimd_maxnumh(tcg_res, tcg_op1, tcg_op2, fpst);
58
+ break;
59
+ case 0x7: /* FMINNM */
60
+ gen_helper_advsimd_minnumh(tcg_res, tcg_op1, tcg_op2, fpst);
61
+ break;
62
+ case 0x8: /* FNMUL */
63
+ gen_helper_advsimd_mulh(tcg_res, tcg_op1, tcg_op2, fpst);
64
+ tcg_gen_xori_i32(tcg_res, tcg_res, 0x8000);
65
+ break;
66
+ default:
67
+ g_assert_not_reached();
68
+ }
69
+
70
+ write_fp_sreg(s, rd, tcg_res);
71
+
72
+ tcg_temp_free_ptr(fpst);
73
+ tcg_temp_free_i32(tcg_op1);
74
+ tcg_temp_free_i32(tcg_op2);
75
+ tcg_temp_free_i32(tcg_res);
76
+}
77
+
78
/* Floating point data-processing (2 source)
79
* 31 30 29 28 24 23 22 21 20 16 15 12 11 10 9 5 4 0
80
* +---+---+---+-----------+------+---+------+--------+-----+------+------+
81
@@ -XXX,XX +XXX,XX @@ static void disas_fp_2src(DisasContext *s, uint32_t insn)
82
}
84
}
83
handle_fp_2src_double(s, opcode, rd, rn, rm);
85
- tcg_temp_free_i64(tcg_shift);
84
break;
86
clear_vec_high(s, is_q, rd);
85
+ case 3:
87
} else {
86
+ if (!arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
88
- TCGv_i32 tcg_shift = tcg_const_i32(shift);
87
+ unallocated_encoding(s);
89
+ TCGv_i32 tcg_shift = tcg_constant_i32(shift);
88
+ return;
90
static NeonGenTwoOpEnvFn * const fns[2][2][3] = {
89
+ }
91
{
90
+ if (!fp_access_check(s)) {
92
{ gen_helper_neon_qshl_s8,
91
+ return;
93
@@ -XXX,XX +XXX,XX @@ static void handle_simd_qshl(DisasContext *s, bool scalar, bool is_q,
92
+ }
94
93
+ handle_fp_2src_half(s, opcode, rd, rn, rm);
95
tcg_temp_free_i32(tcg_op);
94
+ break;
96
}
95
default:
97
- tcg_temp_free_i32(tcg_shift);
96
unallocated_encoding(s);
98
97
}
99
if (!scalar) {
100
clear_vec_high(s, is_q, rd);
98
--
101
--
99
2.17.0
102
2.25.1
100
101
diff view generated by jsdifflib
1
From: Alex Bennée <alex.bennee@linaro.org>
1
From: Richard Henderson <richard.henderson@linaro.org>
2
2
3
All the hard work is already done by vfp_expand_imm, we just need to
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
make sure we pick up the correct size.
5
6
Cc: qemu-stable@nongnu.org
7
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
8
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
5
Message-id: 20220426163043.100432-20-richard.henderson@linaro.org
9
Tested-by: Alex Bennée <alex.bennee@linaro.org>
10
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
11
Message-id: 20180512003217.9105-11-richard.henderson@linaro.org
12
[rth: Merge unallocated_encoding check with TCGMemOp conversion.]
13
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
14
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
15
---
7
---
16
target/arm/translate-a64.c | 20 +++++++++++++++++---
8
target/arm/translate-a64.c | 26 ++++++--------------------
17
1 file changed, 17 insertions(+), 3 deletions(-)
9
1 file changed, 6 insertions(+), 20 deletions(-)
18
10
19
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
11
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
20
index XXXXXXX..XXXXXXX 100644
12
index XXXXXXX..XXXXXXX 100644
21
--- a/target/arm/translate-a64.c
13
--- a/target/arm/translate-a64.c
22
+++ b/target/arm/translate-a64.c
14
+++ b/target/arm/translate-a64.c
23
@@ -XXX,XX +XXX,XX @@ static void disas_fp_imm(DisasContext *s, uint32_t insn)
15
@@ -XXX,XX +XXX,XX @@ static void handle_simd_intfp_conv(DisasContext *s, int rd, int rn,
24
{
16
int pass;
25
int rd = extract32(insn, 0, 5);
17
26
int imm8 = extract32(insn, 13, 8);
18
if (fracbits || size == MO_64) {
27
- int is_double = extract32(insn, 22, 2);
19
- tcg_shift = tcg_const_i32(fracbits);
28
+ int type = extract32(insn, 22, 2);
20
+ tcg_shift = tcg_constant_i32(fracbits);
29
uint64_t imm;
30
TCGv_i64 tcg_res;
31
+ TCGMemOp sz;
32
33
- if (is_double > 1) {
34
+ switch (type) {
35
+ case 0:
36
+ sz = MO_32;
37
+ break;
38
+ case 1:
39
+ sz = MO_64;
40
+ break;
41
+ case 3:
42
+ sz = MO_16;
43
+ if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
44
+ break;
45
+ }
46
+ /* fallthru */
47
+ default:
48
unallocated_encoding(s);
49
return;
50
}
21
}
51
@@ -XXX,XX +XXX,XX @@ static void disas_fp_imm(DisasContext *s, uint32_t insn)
22
52
return;
23
if (size == MO_64) {
24
@@ -XXX,XX +XXX,XX @@ static void handle_simd_intfp_conv(DisasContext *s, int rd, int rn,
53
}
25
}
54
26
55
- imm = vfp_expand_imm(MO_32 + is_double, imm8);
27
tcg_temp_free_ptr(tcg_fpst);
56
+ imm = vfp_expand_imm(sz, imm8);
28
- if (tcg_shift) {
57
29
- tcg_temp_free_i32(tcg_shift);
58
tcg_res = tcg_const_i64(imm);
30
- }
59
write_fp_dreg(s, rd, tcg_res);
31
32
clear_vec_high(s, elements << size == 16, rd);
33
}
34
@@ -XXX,XX +XXX,XX @@ static void handle_simd_shift_fpint_conv(DisasContext *s, bool is_scalar,
35
tcg_fpstatus = fpstatus_ptr(size == MO_16 ? FPST_FPCR_F16 : FPST_FPCR);
36
gen_helper_set_rmode(tcg_rmode, tcg_rmode, tcg_fpstatus);
37
fracbits = (16 << size) - immhb;
38
- tcg_shift = tcg_const_i32(fracbits);
39
+ tcg_shift = tcg_constant_i32(fracbits);
40
41
if (size == MO_64) {
42
int maxpass = is_scalar ? 1 : 2;
43
@@ -XXX,XX +XXX,XX @@ static void handle_simd_shift_fpint_conv(DisasContext *s, bool is_scalar,
44
}
45
}
46
47
- tcg_temp_free_i32(tcg_shift);
48
gen_helper_set_rmode(tcg_rmode, tcg_rmode, tcg_fpstatus);
49
tcg_temp_free_ptr(tcg_fpstatus);
50
tcg_temp_free_i32(tcg_rmode);
51
@@ -XXX,XX +XXX,XX @@ static void handle_2misc_64(DisasContext *s, int opcode, bool u,
52
case 0x1c: /* FCVTAS */
53
case 0x3a: /* FCVTPS */
54
case 0x3b: /* FCVTZS */
55
- {
56
- TCGv_i32 tcg_shift = tcg_const_i32(0);
57
- gen_helper_vfp_tosqd(tcg_rd, tcg_rn, tcg_shift, tcg_fpstatus);
58
- tcg_temp_free_i32(tcg_shift);
59
+ gen_helper_vfp_tosqd(tcg_rd, tcg_rn, tcg_constant_i32(0), tcg_fpstatus);
60
break;
61
- }
62
case 0x5a: /* FCVTNU */
63
case 0x5b: /* FCVTMU */
64
case 0x5c: /* FCVTAU */
65
case 0x7a: /* FCVTPU */
66
case 0x7b: /* FCVTZU */
67
- {
68
- TCGv_i32 tcg_shift = tcg_const_i32(0);
69
- gen_helper_vfp_touqd(tcg_rd, tcg_rn, tcg_shift, tcg_fpstatus);
70
- tcg_temp_free_i32(tcg_shift);
71
+ gen_helper_vfp_touqd(tcg_rd, tcg_rn, tcg_constant_i32(0), tcg_fpstatus);
72
break;
73
- }
74
case 0x18: /* FRINTN */
75
case 0x19: /* FRINTM */
76
case 0x38: /* FRINTP */
77
@@ -XXX,XX +XXX,XX @@ static void handle_2misc_fcmp_zero(DisasContext *s, int opcode,
78
79
if (is_double) {
80
TCGv_i64 tcg_op = tcg_temp_new_i64();
81
- TCGv_i64 tcg_zero = tcg_const_i64(0);
82
+ TCGv_i64 tcg_zero = tcg_constant_i64(0);
83
TCGv_i64 tcg_res = tcg_temp_new_i64();
84
NeonGenTwoDoubleOpFn *genfn;
85
bool swap = false;
86
@@ -XXX,XX +XXX,XX @@ static void handle_2misc_fcmp_zero(DisasContext *s, int opcode,
87
write_vec_element(s, tcg_res, rd, pass, MO_64);
88
}
89
tcg_temp_free_i64(tcg_res);
90
- tcg_temp_free_i64(tcg_zero);
91
tcg_temp_free_i64(tcg_op);
92
93
clear_vec_high(s, !is_scalar, rd);
94
} else {
95
TCGv_i32 tcg_op = tcg_temp_new_i32();
96
- TCGv_i32 tcg_zero = tcg_const_i32(0);
97
+ TCGv_i32 tcg_zero = tcg_constant_i32(0);
98
TCGv_i32 tcg_res = tcg_temp_new_i32();
99
NeonGenTwoSingleOpFn *genfn;
100
bool swap = false;
101
@@ -XXX,XX +XXX,XX @@ static void handle_2misc_fcmp_zero(DisasContext *s, int opcode,
102
}
103
}
104
tcg_temp_free_i32(tcg_res);
105
- tcg_temp_free_i32(tcg_zero);
106
tcg_temp_free_i32(tcg_op);
107
if (!is_scalar) {
108
clear_vec_high(s, is_q, rd);
60
--
109
--
61
2.17.0
110
2.25.1
62
63
diff view generated by jsdifflib
1
From: Richard Henderson <richard.henderson@linaro.org>
1
From: Richard Henderson <richard.henderson@linaro.org>
2
2
3
Adding the fp16 moves to/from general registers.
4
5
Cc: qemu-stable@nongnu.org
6
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
7
Tested-by: Alex Bennée <alex.bennee@linaro.org>
8
Message-id: 20180512003217.9105-2-richard.henderson@linaro.org
9
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-21-richard.henderson@linaro.org
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
11
---
7
---
12
target/arm/translate-a64.c | 21 +++++++++++++++++++++
8
target/arm/translate-a64.c | 40 ++++++++++----------------------------
13
1 file changed, 21 insertions(+)
9
1 file changed, 10 insertions(+), 30 deletions(-)
14
10
15
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
11
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
16
index XXXXXXX..XXXXXXX 100644
12
index XXXXXXX..XXXXXXX 100644
17
--- a/target/arm/translate-a64.c
13
--- a/target/arm/translate-a64.c
18
+++ b/target/arm/translate-a64.c
14
+++ b/target/arm/translate-a64.c
19
@@ -XXX,XX +XXX,XX @@ static void handle_fmov(DisasContext *s, int rd, int rn, int type, bool itof)
15
@@ -XXX,XX +XXX,XX @@ static void handle_2misc_narrow(DisasContext *s, bool scalar,
20
tcg_gen_st_i64(tcg_rn, cpu_env, fp_reg_hi_offset(s, rd));
16
int passes = scalar ? 1 : 2;
21
clear_vec_high(s, true, rd);
17
18
if (scalar) {
19
- tcg_res[1] = tcg_const_i32(0);
20
+ tcg_res[1] = tcg_constant_i32(0);
21
}
22
23
for (pass = 0; pass < passes; pass++) {
24
@@ -XXX,XX +XXX,XX @@ static void handle_2misc_satacc(DisasContext *s, bool is_scalar, bool is_u,
25
}
26
27
if (is_scalar) {
28
- TCGv_i64 tcg_zero = tcg_const_i64(0);
29
- write_vec_element(s, tcg_zero, rd, 0, MO_64);
30
- tcg_temp_free_i64(tcg_zero);
31
+ write_vec_element(s, tcg_constant_i64(0), rd, 0, MO_64);
32
}
33
write_vec_element_i32(s, tcg_rd, rd, pass, MO_32);
34
}
35
@@ -XXX,XX +XXX,XX @@ static void disas_simd_scalar_two_reg_misc(DisasContext *s, uint32_t insn)
36
case 0x1c: /* FCVTAS */
37
case 0x3a: /* FCVTPS */
38
case 0x3b: /* FCVTZS */
39
- {
40
- TCGv_i32 tcg_shift = tcg_const_i32(0);
41
- gen_helper_vfp_tosls(tcg_rd, tcg_rn, tcg_shift, tcg_fpstatus);
42
- tcg_temp_free_i32(tcg_shift);
43
+ gen_helper_vfp_tosls(tcg_rd, tcg_rn, tcg_constant_i32(0),
44
+ tcg_fpstatus);
22
break;
45
break;
23
+ case 3:
46
- }
24
+ /* 16 bit */
47
case 0x5a: /* FCVTNU */
25
+ tmp = tcg_temp_new_i64();
48
case 0x5b: /* FCVTMU */
26
+ tcg_gen_ext16u_i64(tmp, tcg_rn);
49
case 0x5c: /* FCVTAU */
27
+ write_fp_dreg(s, rd, tmp);
50
case 0x7a: /* FCVTPU */
28
+ tcg_temp_free_i64(tmp);
51
case 0x7b: /* FCVTZU */
29
+ break;
52
- {
30
+ default:
53
- TCGv_i32 tcg_shift = tcg_const_i32(0);
31
+ g_assert_not_reached();
54
- gen_helper_vfp_touls(tcg_rd, tcg_rn, tcg_shift, tcg_fpstatus);
55
- tcg_temp_free_i32(tcg_shift);
56
+ gen_helper_vfp_touls(tcg_rd, tcg_rn, tcg_constant_i32(0),
57
+ tcg_fpstatus);
58
break;
59
- }
60
default:
61
g_assert_not_reached();
32
}
62
}
63
@@ -XXX,XX +XXX,XX @@ static void handle_vec_simd_shrn(DisasContext *s, bool is_q,
64
read_vec_element(s, tcg_final, rd, is_q ? 1 : 0, MO_64);
65
66
if (round) {
67
- uint64_t round_const = 1ULL << (shift - 1);
68
- tcg_round = tcg_const_i64(round_const);
69
+ tcg_round = tcg_constant_i64(1ULL << (shift - 1));
33
} else {
70
} else {
34
TCGv_i64 tcg_rd = cpu_reg(s, rd);
71
tcg_round = NULL;
35
@@ -XXX,XX +XXX,XX @@ static void handle_fmov(DisasContext *s, int rd, int rn, int type, bool itof)
72
}
36
/* 64 bits from top half */
73
@@ -XXX,XX +XXX,XX @@ static void handle_vec_simd_shrn(DisasContext *s, bool is_q,
37
tcg_gen_ld_i64(tcg_rd, cpu_env, fp_reg_hi_offset(s, rn));
74
} else {
38
break;
75
write_vec_element(s, tcg_final, rd, 1, MO_64);
39
+ case 3:
76
}
40
+ /* 16 bit */
77
- if (round) {
41
+ tcg_gen_ld16u_i64(tcg_rd, cpu_env, fp_reg_offset(s, rn, MO_16));
78
- tcg_temp_free_i64(tcg_round);
42
+ break;
79
- }
43
+ default:
80
tcg_temp_free_i64(tcg_rn);
44
+ g_assert_not_reached();
81
tcg_temp_free_i64(tcg_rd);
82
tcg_temp_free_i64(tcg_final);
83
@@ -XXX,XX +XXX,XX @@ static void handle_2misc_pairwise(DisasContext *s, int opcode, bool u,
45
}
84
}
46
}
85
}
47
}
86
if (!is_q) {
48
@@ -XXX,XX +XXX,XX @@ static void disas_fp_int_conv(DisasContext *s, uint32_t insn)
87
- tcg_res[1] = tcg_const_i64(0);
49
case 0xa: /* 64 bit */
88
+ tcg_res[1] = tcg_constant_i64(0);
50
case 0xd: /* 64 bit to top half of quad */
89
}
51
break;
90
for (pass = 0; pass < 2; pass++) {
52
+ case 0x6: /* 16-bit float, 32-bit int */
91
write_vec_element(s, tcg_res[pass], rd, pass, MO_64);
53
+ case 0xe: /* 16-bit float, 64-bit int */
92
@@ -XXX,XX +XXX,XX @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn)
54
+ if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
93
case 0x1c: /* FCVTAS */
55
+ break;
94
case 0x3a: /* FCVTPS */
56
+ }
95
case 0x3b: /* FCVTZS */
57
+ /* fallthru */
96
- {
58
default:
97
- TCGv_i32 tcg_shift = tcg_const_i32(0);
59
/* all other sf/type/rmode combinations are invalid */
98
gen_helper_vfp_tosls(tcg_res, tcg_op,
60
unallocated_encoding(s);
99
- tcg_shift, tcg_fpstatus);
100
- tcg_temp_free_i32(tcg_shift);
101
+ tcg_constant_i32(0), tcg_fpstatus);
102
break;
103
- }
104
case 0x5a: /* FCVTNU */
105
case 0x5b: /* FCVTMU */
106
case 0x5c: /* FCVTAU */
107
case 0x7a: /* FCVTPU */
108
case 0x7b: /* FCVTZU */
109
- {
110
- TCGv_i32 tcg_shift = tcg_const_i32(0);
111
gen_helper_vfp_touls(tcg_res, tcg_op,
112
- tcg_shift, tcg_fpstatus);
113
- tcg_temp_free_i32(tcg_shift);
114
+ tcg_constant_i32(0), tcg_fpstatus);
115
break;
116
- }
117
case 0x18: /* FRINTN */
118
case 0x19: /* FRINTM */
119
case 0x38: /* FRINTP */
61
--
120
--
62
2.17.0
121
2.25.1
63
64
diff view generated by jsdifflib
1
From: Alex Bennée <alex.bennee@linaro.org>
1
From: Richard Henderson <richard.henderson@linaro.org>
2
2
3
These where missed out from the rest of the half-precision work.
3
Finish conversion of the file to tcg_constant_*.
4
4
5
Cc: qemu-stable@nongnu.org
5
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
6
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
6
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
7
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
7
Message-id: 20220426163043.100432-22-richard.henderson@linaro.org
8
Tested-by: Alex Bennée <alex.bennee@linaro.org>
9
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
10
Message-id: 20180512003217.9105-9-richard.henderson@linaro.org
11
[rth: Diagnose lack of FP16 before fp_access_check]
12
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
13
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
14
---
9
---
15
target/arm/helper-a64.h | 2 +
10
target/arm/translate-a64.c | 20 ++++++++------------
16
target/arm/helper-a64.c | 10 +++++
11
1 file changed, 8 insertions(+), 12 deletions(-)
17
target/arm/translate-a64.c | 88 ++++++++++++++++++++++++++++++--------
18
3 files changed, 83 insertions(+), 17 deletions(-)
19
12
20
diff --git a/target/arm/helper-a64.h b/target/arm/helper-a64.h
21
index XXXXXXX..XXXXXXX 100644
22
--- a/target/arm/helper-a64.h
23
+++ b/target/arm/helper-a64.h
24
@@ -XXX,XX +XXX,XX @@
25
DEF_HELPER_FLAGS_2(udiv64, TCG_CALL_NO_RWG_SE, i64, i64, i64)
26
DEF_HELPER_FLAGS_2(sdiv64, TCG_CALL_NO_RWG_SE, s64, s64, s64)
27
DEF_HELPER_FLAGS_1(rbit64, TCG_CALL_NO_RWG_SE, i64, i64)
28
+DEF_HELPER_3(vfp_cmph_a64, i64, f16, f16, ptr)
29
+DEF_HELPER_3(vfp_cmpeh_a64, i64, f16, f16, ptr)
30
DEF_HELPER_3(vfp_cmps_a64, i64, f32, f32, ptr)
31
DEF_HELPER_3(vfp_cmpes_a64, i64, f32, f32, ptr)
32
DEF_HELPER_3(vfp_cmpd_a64, i64, f64, f64, ptr)
33
diff --git a/target/arm/helper-a64.c b/target/arm/helper-a64.c
34
index XXXXXXX..XXXXXXX 100644
35
--- a/target/arm/helper-a64.c
36
+++ b/target/arm/helper-a64.c
37
@@ -XXX,XX +XXX,XX @@ static inline uint32_t float_rel_to_flags(int res)
38
return flags;
39
}
40
41
+uint64_t HELPER(vfp_cmph_a64)(float16 x, float16 y, void *fp_status)
42
+{
43
+ return float_rel_to_flags(float16_compare_quiet(x, y, fp_status));
44
+}
45
+
46
+uint64_t HELPER(vfp_cmpeh_a64)(float16 x, float16 y, void *fp_status)
47
+{
48
+ return float_rel_to_flags(float16_compare(x, y, fp_status));
49
+}
50
+
51
uint64_t HELPER(vfp_cmps_a64)(float32 x, float32 y, void *fp_status)
52
{
53
return float_rel_to_flags(float32_compare_quiet(x, y, fp_status));
54
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
13
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
55
index XXXXXXX..XXXXXXX 100644
14
index XXXXXXX..XXXXXXX 100644
56
--- a/target/arm/translate-a64.c
15
--- a/target/arm/translate-a64.c
57
+++ b/target/arm/translate-a64.c
16
+++ b/target/arm/translate-a64.c
58
@@ -XXX,XX +XXX,XX @@ static void disas_data_proc_reg(DisasContext *s, uint32_t insn)
17
@@ -XXX,XX +XXX,XX @@ static void disas_simd_indexed(DisasContext *s, uint32_t insn)
18
}
19
20
if (is_scalar) {
21
- tcg_res[1] = tcg_const_i64(0);
22
+ tcg_res[1] = tcg_constant_i64(0);
23
}
24
25
for (pass = 0; pass < 2; pass++) {
26
@@ -XXX,XX +XXX,XX @@ static void disas_crypto_four_reg(DisasContext *s, uint32_t insn)
27
tcg_op2 = tcg_temp_new_i32();
28
tcg_op3 = tcg_temp_new_i32();
29
tcg_res = tcg_temp_new_i32();
30
- tcg_zero = tcg_const_i32(0);
31
+ tcg_zero = tcg_constant_i32(0);
32
33
read_vec_element_i32(s, tcg_op1, rn, 3, MO_32);
34
read_vec_element_i32(s, tcg_op2, rm, 3, MO_32);
35
@@ -XXX,XX +XXX,XX @@ static void disas_crypto_four_reg(DisasContext *s, uint32_t insn)
36
tcg_temp_free_i32(tcg_op2);
37
tcg_temp_free_i32(tcg_op3);
38
tcg_temp_free_i32(tcg_res);
39
- tcg_temp_free_i32(tcg_zero);
59
}
40
}
60
}
41
}
61
42
62
-static void handle_fp_compare(DisasContext *s, bool is_double,
43
@@ -XXX,XX +XXX,XX @@ static void aarch64_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu)
63
+static void handle_fp_compare(DisasContext *s, int size,
44
gen_helper_yield(cpu_env);
64
unsigned int rn, unsigned int rm,
45
break;
65
bool cmp_with_zero, bool signal_all_nans)
46
case DISAS_WFI:
66
{
47
- {
67
TCGv_i64 tcg_flags = tcg_temp_new_i64();
48
- /* This is a special case because we don't want to just halt the CPU
68
- TCGv_ptr fpst = get_fpstatus_ptr(false);
49
- * if trying to debug across a WFI.
69
+ TCGv_ptr fpst = get_fpstatus_ptr(size == MO_16);
50
+ /*
70
51
+ * This is a special case because we don't want to just halt
71
- if (is_double) {
52
+ * the CPU if trying to debug across a WFI.
72
+ if (size == MO_64) {
53
*/
73
TCGv_i64 tcg_vn, tcg_vm;
54
- TCGv_i32 tmp = tcg_const_i32(4);
74
55
-
75
tcg_vn = read_fp_dreg(s, rn);
56
gen_a64_set_pc_im(dc->base.pc_next);
76
@@ -XXX,XX +XXX,XX @@ static void handle_fp_compare(DisasContext *s, bool is_double,
57
- gen_helper_wfi(cpu_env, tmp);
77
tcg_temp_free_i64(tcg_vn);
58
- tcg_temp_free_i32(tmp);
78
tcg_temp_free_i64(tcg_vm);
59
- /* The helper doesn't necessarily throw an exception, but we
79
} else {
60
+ gen_helper_wfi(cpu_env, tcg_constant_i32(4));
80
- TCGv_i32 tcg_vn, tcg_vm;
61
+ /*
81
+ TCGv_i32 tcg_vn = tcg_temp_new_i32();
62
+ * The helper doesn't necessarily throw an exception, but we
82
+ TCGv_i32 tcg_vm = tcg_temp_new_i32();
63
* must go back to the main loop to check for interrupts anyway.
83
64
*/
84
- tcg_vn = read_fp_sreg(s, rn);
65
tcg_gen_exit_tb(NULL, 0);
85
+ read_vec_element_i32(s, tcg_vn, rn, 0, size);
66
break;
86
if (cmp_with_zero) {
87
- tcg_vm = tcg_const_i32(0);
88
+ tcg_gen_movi_i32(tcg_vm, 0);
89
} else {
90
- tcg_vm = read_fp_sreg(s, rm);
91
+ read_vec_element_i32(s, tcg_vm, rm, 0, size);
92
}
67
}
93
- if (signal_all_nans) {
68
- }
94
- gen_helper_vfp_cmpes_a64(tcg_flags, tcg_vn, tcg_vm, fpst);
95
- } else {
96
- gen_helper_vfp_cmps_a64(tcg_flags, tcg_vn, tcg_vm, fpst);
97
+
98
+ switch (size) {
99
+ case MO_32:
100
+ if (signal_all_nans) {
101
+ gen_helper_vfp_cmpes_a64(tcg_flags, tcg_vn, tcg_vm, fpst);
102
+ } else {
103
+ gen_helper_vfp_cmps_a64(tcg_flags, tcg_vn, tcg_vm, fpst);
104
+ }
105
+ break;
106
+ case MO_16:
107
+ if (signal_all_nans) {
108
+ gen_helper_vfp_cmpeh_a64(tcg_flags, tcg_vn, tcg_vm, fpst);
109
+ } else {
110
+ gen_helper_vfp_cmph_a64(tcg_flags, tcg_vn, tcg_vm, fpst);
111
+ }
112
+ break;
113
+ default:
114
+ g_assert_not_reached();
115
}
116
+
117
tcg_temp_free_i32(tcg_vn);
118
tcg_temp_free_i32(tcg_vm);
119
}
69
}
120
@@ -XXX,XX +XXX,XX @@ static void handle_fp_compare(DisasContext *s, bool is_double,
121
static void disas_fp_compare(DisasContext *s, uint32_t insn)
122
{
123
unsigned int mos, type, rm, op, rn, opc, op2r;
124
+ int size;
125
126
mos = extract32(insn, 29, 3);
127
- type = extract32(insn, 22, 2); /* 0 = single, 1 = double */
128
+ type = extract32(insn, 22, 2);
129
rm = extract32(insn, 16, 5);
130
op = extract32(insn, 14, 2);
131
rn = extract32(insn, 5, 5);
132
opc = extract32(insn, 3, 2);
133
op2r = extract32(insn, 0, 3);
134
135
- if (mos || op || op2r || type > 1) {
136
+ if (mos || op || op2r) {
137
+ unallocated_encoding(s);
138
+ return;
139
+ }
140
+
141
+ switch (type) {
142
+ case 0:
143
+ size = MO_32;
144
+ break;
145
+ case 1:
146
+ size = MO_64;
147
+ break;
148
+ case 3:
149
+ size = MO_16;
150
+ if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
151
+ break;
152
+ }
153
+ /* fallthru */
154
+ default:
155
unallocated_encoding(s);
156
return;
157
}
158
@@ -XXX,XX +XXX,XX @@ static void disas_fp_compare(DisasContext *s, uint32_t insn)
159
return;
160
}
161
162
- handle_fp_compare(s, type, rn, rm, opc & 1, opc & 2);
163
+ handle_fp_compare(s, size, rn, rm, opc & 1, opc & 2);
164
}
70
}
165
71
166
/* Floating point conditional compare
167
@@ -XXX,XX +XXX,XX @@ static void disas_fp_ccomp(DisasContext *s, uint32_t insn)
168
unsigned int mos, type, rm, cond, rn, op, nzcv;
169
TCGv_i64 tcg_flags;
170
TCGLabel *label_continue = NULL;
171
+ int size;
172
173
mos = extract32(insn, 29, 3);
174
- type = extract32(insn, 22, 2); /* 0 = single, 1 = double */
175
+ type = extract32(insn, 22, 2);
176
rm = extract32(insn, 16, 5);
177
cond = extract32(insn, 12, 4);
178
rn = extract32(insn, 5, 5);
179
op = extract32(insn, 4, 1);
180
nzcv = extract32(insn, 0, 4);
181
182
- if (mos || type > 1) {
183
+ if (mos) {
184
+ unallocated_encoding(s);
185
+ return;
186
+ }
187
+
188
+ switch (type) {
189
+ case 0:
190
+ size = MO_32;
191
+ break;
192
+ case 1:
193
+ size = MO_64;
194
+ break;
195
+ case 3:
196
+ size = MO_16;
197
+ if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
198
+ break;
199
+ }
200
+ /* fallthru */
201
+ default:
202
unallocated_encoding(s);
203
return;
204
}
205
@@ -XXX,XX +XXX,XX @@ static void disas_fp_ccomp(DisasContext *s, uint32_t insn)
206
gen_set_label(label_match);
207
}
208
209
- handle_fp_compare(s, type, rn, rm, false, op);
210
+ handle_fp_compare(s, size, rn, rm, false, op);
211
212
if (cond < 0x0e) {
213
gen_set_label(label_continue);
214
--
72
--
215
2.17.0
73
2.25.1
216
217
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-23-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate.c | 32 +++++++-------------------------
9
1 file changed, 7 insertions(+), 25 deletions(-)
10
11
diff --git a/target/arm/translate.c b/target/arm/translate.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate.c
14
+++ b/target/arm/translate.c
15
@@ -XXX,XX +XXX,XX @@ static void store_sp_checked(DisasContext *s, TCGv_i32 var)
16
17
void gen_set_cpsr(TCGv_i32 var, uint32_t mask)
18
{
19
- TCGv_i32 tmp_mask = tcg_const_i32(mask);
20
- gen_helper_cpsr_write(cpu_env, var, tmp_mask);
21
- tcg_temp_free_i32(tmp_mask);
22
+ gen_helper_cpsr_write(cpu_env, var, tcg_constant_i32(mask));
23
}
24
25
static void gen_rebuild_hflags(DisasContext *s, bool new_el)
26
@@ -XXX,XX +XXX,XX @@ static void gen_rebuild_hflags(DisasContext *s, bool new_el)
27
28
static void gen_exception_internal(int excp)
29
{
30
- TCGv_i32 tcg_excp = tcg_const_i32(excp);
31
-
32
assert(excp_is_internal(excp));
33
- gen_helper_exception_internal(cpu_env, tcg_excp);
34
- tcg_temp_free_i32(tcg_excp);
35
+ gen_helper_exception_internal(cpu_env, tcg_constant_i32(excp));
36
}
37
38
static void gen_singlestep_exception(DisasContext *s)
39
@@ -XXX,XX +XXX,XX @@ static inline void gen_smc(DisasContext *s)
40
/* As with HVC, we may take an exception either before or after
41
* the insn executes.
42
*/
43
- TCGv_i32 tmp;
44
-
45
gen_set_pc_im(s, s->pc_curr);
46
- tmp = tcg_const_i32(syn_aa32_smc());
47
- gen_helper_pre_smc(cpu_env, tmp);
48
- tcg_temp_free_i32(tmp);
49
+ gen_helper_pre_smc(cpu_env, tcg_constant_i32(syn_aa32_smc()));
50
gen_set_pc_im(s, s->base.pc_next);
51
s->base.is_jmp = DISAS_SMC;
52
}
53
@@ -XXX,XX +XXX,XX @@ void gen_exception_insn(DisasContext *s, uint64_t pc, int excp,
54
55
static void gen_exception_bkpt_insn(DisasContext *s, uint32_t syn)
56
{
57
- TCGv_i32 tcg_syn;
58
-
59
gen_set_condexec(s);
60
gen_set_pc_im(s, s->pc_curr);
61
- tcg_syn = tcg_const_i32(syn);
62
- gen_helper_exception_bkpt_insn(cpu_env, tcg_syn);
63
- tcg_temp_free_i32(tcg_syn);
64
+ gen_helper_exception_bkpt_insn(cpu_env, tcg_constant_i32(syn));
65
s->base.is_jmp = DISAS_NORETURN;
66
}
67
68
@@ -XXX,XX +XXX,XX @@ void unallocated_encoding(DisasContext *s)
69
static void gen_exception_el(DisasContext *s, int excp, uint32_t syn,
70
TCGv_i32 tcg_el)
71
{
72
- TCGv_i32 tcg_excp;
73
- TCGv_i32 tcg_syn;
74
-
75
gen_set_condexec(s);
76
gen_set_pc_im(s, s->pc_curr);
77
- tcg_excp = tcg_const_i32(excp);
78
- tcg_syn = tcg_const_i32(syn);
79
- gen_helper_exception_with_syndrome(cpu_env, tcg_excp, tcg_syn, tcg_el);
80
- tcg_temp_free_i32(tcg_syn);
81
- tcg_temp_free_i32(tcg_excp);
82
+ gen_helper_exception_with_syndrome(cpu_env,
83
+ tcg_constant_i32(excp),
84
+ tcg_constant_i32(syn), tcg_el);
85
s->base.is_jmp = DISAS_NORETURN;
86
}
87
88
--
89
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-24-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate.c | 25 ++++++++++---------------
9
1 file changed, 10 insertions(+), 15 deletions(-)
10
11
diff --git a/target/arm/translate.c b/target/arm/translate.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate.c
14
+++ b/target/arm/translate.c
15
@@ -XXX,XX +XXX,XX @@ static int disas_iwmmxt_insn(DisasContext *s, uint32_t insn)
16
gen_op_iwmmxt_movq_M0_wRn(wrd);
17
switch ((insn >> 6) & 3) {
18
case 0:
19
- tmp2 = tcg_const_i32(0xff);
20
- tmp3 = tcg_const_i32((insn & 7) << 3);
21
+ tmp2 = tcg_constant_i32(0xff);
22
+ tmp3 = tcg_constant_i32((insn & 7) << 3);
23
break;
24
case 1:
25
- tmp2 = tcg_const_i32(0xffff);
26
- tmp3 = tcg_const_i32((insn & 3) << 4);
27
+ tmp2 = tcg_constant_i32(0xffff);
28
+ tmp3 = tcg_constant_i32((insn & 3) << 4);
29
break;
30
case 2:
31
- tmp2 = tcg_const_i32(0xffffffff);
32
- tmp3 = tcg_const_i32((insn & 1) << 5);
33
+ tmp2 = tcg_constant_i32(0xffffffff);
34
+ tmp3 = tcg_constant_i32((insn & 1) << 5);
35
break;
36
default:
37
- tmp2 = NULL;
38
- tmp3 = NULL;
39
+ g_assert_not_reached();
40
}
41
gen_helper_iwmmxt_insr(cpu_M0, cpu_M0, tmp, tmp2, tmp3);
42
- tcg_temp_free_i32(tmp3);
43
- tcg_temp_free_i32(tmp2);
44
tcg_temp_free_i32(tmp);
45
gen_op_iwmmxt_movq_wRn_M0(wrd);
46
gen_op_iwmmxt_set_mup();
47
@@ -XXX,XX +XXX,XX @@ static int disas_iwmmxt_insn(DisasContext *s, uint32_t insn)
48
rd0 = (insn >> 16) & 0xf;
49
rd1 = (insn >> 0) & 0xf;
50
gen_op_iwmmxt_movq_M0_wRn(rd0);
51
- tmp = tcg_const_i32((insn >> 20) & 3);
52
iwmmxt_load_reg(cpu_V1, rd1);
53
- gen_helper_iwmmxt_align(cpu_M0, cpu_M0, cpu_V1, tmp);
54
- tcg_temp_free_i32(tmp);
55
+ gen_helper_iwmmxt_align(cpu_M0, cpu_M0, cpu_V1,
56
+ tcg_constant_i32((insn >> 20) & 3));
57
gen_op_iwmmxt_movq_wRn_M0(wrd);
58
gen_op_iwmmxt_set_mup();
59
break;
60
@@ -XXX,XX +XXX,XX @@ static int disas_iwmmxt_insn(DisasContext *s, uint32_t insn)
61
wrd = (insn >> 12) & 0xf;
62
rd0 = (insn >> 16) & 0xf;
63
gen_op_iwmmxt_movq_M0_wRn(rd0);
64
- tmp = tcg_const_i32(((insn >> 16) & 0xf0) | (insn & 0x0f));
65
+ tmp = tcg_constant_i32(((insn >> 16) & 0xf0) | (insn & 0x0f));
66
gen_helper_iwmmxt_shufh(cpu_M0, cpu_env, cpu_M0, tmp);
67
- tcg_temp_free_i32(tmp);
68
gen_op_iwmmxt_movq_wRn_M0(wrd);
69
gen_op_iwmmxt_set_mup();
70
gen_op_iwmmxt_set_cup();
71
--
72
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-25-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate.c | 22 +++++++++-------------
9
1 file changed, 9 insertions(+), 13 deletions(-)
10
11
diff --git a/target/arm/translate.c b/target/arm/translate.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate.c
14
+++ b/target/arm/translate.c
15
@@ -XXX,XX +XXX,XX @@ static bool msr_banked_access_decode(DisasContext *s, int r, int sysm, int rn,
16
tcg_gen_sextract_i32(tcg_el, tcg_el, ctz32(SCR_EEL2), 1);
17
tcg_gen_addi_i32(tcg_el, tcg_el, 3);
18
} else {
19
- tcg_el = tcg_const_i32(3);
20
+ tcg_el = tcg_constant_i32(3);
21
}
22
23
gen_exception_el(s, EXCP_UDEF, syn_uncategorized(), tcg_el);
24
@@ -XXX,XX +XXX,XX @@ undef:
25
26
static void gen_msr_banked(DisasContext *s, int r, int sysm, int rn)
27
{
28
- TCGv_i32 tcg_reg, tcg_tgtmode, tcg_regno;
29
+ TCGv_i32 tcg_reg;
30
int tgtmode = 0, regno = 0;
31
32
if (!msr_banked_access_decode(s, r, sysm, rn, &tgtmode, &regno)) {
33
@@ -XXX,XX +XXX,XX @@ static void gen_msr_banked(DisasContext *s, int r, int sysm, int rn)
34
gen_set_condexec(s);
35
gen_set_pc_im(s, s->pc_curr);
36
tcg_reg = load_reg(s, rn);
37
- tcg_tgtmode = tcg_const_i32(tgtmode);
38
- tcg_regno = tcg_const_i32(regno);
39
- gen_helper_msr_banked(cpu_env, tcg_reg, tcg_tgtmode, tcg_regno);
40
- tcg_temp_free_i32(tcg_tgtmode);
41
- tcg_temp_free_i32(tcg_regno);
42
+ gen_helper_msr_banked(cpu_env, tcg_reg,
43
+ tcg_constant_i32(tgtmode),
44
+ tcg_constant_i32(regno));
45
tcg_temp_free_i32(tcg_reg);
46
s->base.is_jmp = DISAS_UPDATE_EXIT;
47
}
48
49
static void gen_mrs_banked(DisasContext *s, int r, int sysm, int rn)
50
{
51
- TCGv_i32 tcg_reg, tcg_tgtmode, tcg_regno;
52
+ TCGv_i32 tcg_reg;
53
int tgtmode = 0, regno = 0;
54
55
if (!msr_banked_access_decode(s, r, sysm, rn, &tgtmode, &regno)) {
56
@@ -XXX,XX +XXX,XX @@ static void gen_mrs_banked(DisasContext *s, int r, int sysm, int rn)
57
gen_set_condexec(s);
58
gen_set_pc_im(s, s->pc_curr);
59
tcg_reg = tcg_temp_new_i32();
60
- tcg_tgtmode = tcg_const_i32(tgtmode);
61
- tcg_regno = tcg_const_i32(regno);
62
- gen_helper_mrs_banked(tcg_reg, cpu_env, tcg_tgtmode, tcg_regno);
63
- tcg_temp_free_i32(tcg_tgtmode);
64
- tcg_temp_free_i32(tcg_regno);
65
+ gen_helper_mrs_banked(tcg_reg, cpu_env,
66
+ tcg_constant_i32(tgtmode),
67
+ tcg_constant_i32(regno));
68
store_reg(s, rn, tcg_reg);
69
s->base.is_jmp = DISAS_UPDATE_EXIT;
70
}
71
--
72
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-26-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate.c | 27 +++++++++------------------
9
1 file changed, 9 insertions(+), 18 deletions(-)
10
11
diff --git a/target/arm/translate.c b/target/arm/translate.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate.c
14
+++ b/target/arm/translate.c
15
@@ -XXX,XX +XXX,XX @@ void gen_gvec_sqrdmlsh_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
16
} \
17
static void gen_##NAME##0_vec(unsigned vece, TCGv_vec d, TCGv_vec a) \
18
{ \
19
- TCGv_vec zero = tcg_const_zeros_vec_matching(d); \
20
+ TCGv_vec zero = tcg_constant_vec_matching(d, vece, 0); \
21
tcg_gen_cmp_vec(COND, vece, d, a, zero); \
22
- tcg_temp_free_vec(zero); \
23
} \
24
void gen_gvec_##NAME##0(unsigned vece, uint32_t d, uint32_t m, \
25
uint32_t opr_sz, uint32_t max_sz) \
26
@@ -XXX,XX +XXX,XX @@ void gen_ushl_i32(TCGv_i32 dst, TCGv_i32 src, TCGv_i32 shift)
27
TCGv_i32 rval = tcg_temp_new_i32();
28
TCGv_i32 lsh = tcg_temp_new_i32();
29
TCGv_i32 rsh = tcg_temp_new_i32();
30
- TCGv_i32 zero = tcg_const_i32(0);
31
- TCGv_i32 max = tcg_const_i32(32);
32
+ TCGv_i32 zero = tcg_constant_i32(0);
33
+ TCGv_i32 max = tcg_constant_i32(32);
34
35
/*
36
* Rely on the TCG guarantee that out of range shifts produce
37
@@ -XXX,XX +XXX,XX @@ void gen_ushl_i32(TCGv_i32 dst, TCGv_i32 src, TCGv_i32 shift)
38
tcg_temp_free_i32(rval);
39
tcg_temp_free_i32(lsh);
40
tcg_temp_free_i32(rsh);
41
- tcg_temp_free_i32(zero);
42
- tcg_temp_free_i32(max);
43
}
44
45
void gen_ushl_i64(TCGv_i64 dst, TCGv_i64 src, TCGv_i64 shift)
46
@@ -XXX,XX +XXX,XX @@ void gen_ushl_i64(TCGv_i64 dst, TCGv_i64 src, TCGv_i64 shift)
47
TCGv_i64 rval = tcg_temp_new_i64();
48
TCGv_i64 lsh = tcg_temp_new_i64();
49
TCGv_i64 rsh = tcg_temp_new_i64();
50
- TCGv_i64 zero = tcg_const_i64(0);
51
- TCGv_i64 max = tcg_const_i64(64);
52
+ TCGv_i64 zero = tcg_constant_i64(0);
53
+ TCGv_i64 max = tcg_constant_i64(64);
54
55
/*
56
* Rely on the TCG guarantee that out of range shifts produce
57
@@ -XXX,XX +XXX,XX @@ void gen_ushl_i64(TCGv_i64 dst, TCGv_i64 src, TCGv_i64 shift)
58
tcg_temp_free_i64(rval);
59
tcg_temp_free_i64(lsh);
60
tcg_temp_free_i64(rsh);
61
- tcg_temp_free_i64(zero);
62
- tcg_temp_free_i64(max);
63
}
64
65
static void gen_ushl_vec(unsigned vece, TCGv_vec dst,
66
@@ -XXX,XX +XXX,XX @@ void gen_sshl_i32(TCGv_i32 dst, TCGv_i32 src, TCGv_i32 shift)
67
TCGv_i32 rval = tcg_temp_new_i32();
68
TCGv_i32 lsh = tcg_temp_new_i32();
69
TCGv_i32 rsh = tcg_temp_new_i32();
70
- TCGv_i32 zero = tcg_const_i32(0);
71
- TCGv_i32 max = tcg_const_i32(31);
72
+ TCGv_i32 zero = tcg_constant_i32(0);
73
+ TCGv_i32 max = tcg_constant_i32(31);
74
75
/*
76
* Rely on the TCG guarantee that out of range shifts produce
77
@@ -XXX,XX +XXX,XX @@ void gen_sshl_i32(TCGv_i32 dst, TCGv_i32 src, TCGv_i32 shift)
78
tcg_temp_free_i32(rval);
79
tcg_temp_free_i32(lsh);
80
tcg_temp_free_i32(rsh);
81
- tcg_temp_free_i32(zero);
82
- tcg_temp_free_i32(max);
83
}
84
85
void gen_sshl_i64(TCGv_i64 dst, TCGv_i64 src, TCGv_i64 shift)
86
@@ -XXX,XX +XXX,XX @@ void gen_sshl_i64(TCGv_i64 dst, TCGv_i64 src, TCGv_i64 shift)
87
TCGv_i64 rval = tcg_temp_new_i64();
88
TCGv_i64 lsh = tcg_temp_new_i64();
89
TCGv_i64 rsh = tcg_temp_new_i64();
90
- TCGv_i64 zero = tcg_const_i64(0);
91
- TCGv_i64 max = tcg_const_i64(63);
92
+ TCGv_i64 zero = tcg_constant_i64(0);
93
+ TCGv_i64 max = tcg_constant_i64(63);
94
95
/*
96
* Rely on the TCG guarantee that out of range shifts produce
97
@@ -XXX,XX +XXX,XX @@ void gen_sshl_i64(TCGv_i64 dst, TCGv_i64 src, TCGv_i64 shift)
98
tcg_temp_free_i64(rval);
99
tcg_temp_free_i64(lsh);
100
tcg_temp_free_i64(rsh);
101
- tcg_temp_free_i64(zero);
102
- tcg_temp_free_i64(max);
103
}
104
105
static void gen_sshl_vec(unsigned vece, TCGv_vec dst,
106
--
107
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-27-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate.c | 43 +++++++++++++-----------------------------
9
1 file changed, 13 insertions(+), 30 deletions(-)
10
11
diff --git a/target/arm/translate.c b/target/arm/translate.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate.c
14
+++ b/target/arm/translate.c
15
@@ -XXX,XX +XXX,XX @@ static void do_coproc_insn(DisasContext *s, int cpnum, int is64,
16
* Note that on XScale all cp0..c13 registers do an access check
17
* call in order to handle c15_cpar.
18
*/
19
- TCGv_ptr tmpptr;
20
- TCGv_i32 tcg_syn, tcg_isread;
21
uint32_t syndrome;
22
23
/* Note that since we are an implementation which takes an
24
@@ -XXX,XX +XXX,XX @@ static void do_coproc_insn(DisasContext *s, int cpnum, int is64,
25
26
gen_set_condexec(s);
27
gen_set_pc_im(s, s->pc_curr);
28
- tmpptr = tcg_const_ptr(ri);
29
- tcg_syn = tcg_const_i32(syndrome);
30
- tcg_isread = tcg_const_i32(isread);
31
- gen_helper_access_check_cp_reg(cpu_env, tmpptr, tcg_syn,
32
- tcg_isread);
33
- tcg_temp_free_ptr(tmpptr);
34
- tcg_temp_free_i32(tcg_syn);
35
- tcg_temp_free_i32(tcg_isread);
36
+ gen_helper_access_check_cp_reg(cpu_env,
37
+ tcg_constant_ptr(ri),
38
+ tcg_constant_i32(syndrome),
39
+ tcg_constant_i32(isread));
40
} else if (ri->type & ARM_CP_RAISES_EXC) {
41
/*
42
* The readfn or writefn might raise an exception;
43
@@ -XXX,XX +XXX,XX @@ static void do_coproc_insn(DisasContext *s, int cpnum, int is64,
44
TCGv_i64 tmp64;
45
TCGv_i32 tmp;
46
if (ri->type & ARM_CP_CONST) {
47
- tmp64 = tcg_const_i64(ri->resetvalue);
48
+ tmp64 = tcg_constant_i64(ri->resetvalue);
49
} else if (ri->readfn) {
50
- TCGv_ptr tmpptr;
51
tmp64 = tcg_temp_new_i64();
52
- tmpptr = tcg_const_ptr(ri);
53
- gen_helper_get_cp_reg64(tmp64, cpu_env, tmpptr);
54
- tcg_temp_free_ptr(tmpptr);
55
+ gen_helper_get_cp_reg64(tmp64, cpu_env,
56
+ tcg_constant_ptr(ri));
57
} else {
58
tmp64 = tcg_temp_new_i64();
59
tcg_gen_ld_i64(tmp64, cpu_env, ri->fieldoffset);
60
@@ -XXX,XX +XXX,XX @@ static void do_coproc_insn(DisasContext *s, int cpnum, int is64,
61
} else {
62
TCGv_i32 tmp;
63
if (ri->type & ARM_CP_CONST) {
64
- tmp = tcg_const_i32(ri->resetvalue);
65
+ tmp = tcg_constant_i32(ri->resetvalue);
66
} else if (ri->readfn) {
67
- TCGv_ptr tmpptr;
68
tmp = tcg_temp_new_i32();
69
- tmpptr = tcg_const_ptr(ri);
70
- gen_helper_get_cp_reg(tmp, cpu_env, tmpptr);
71
- tcg_temp_free_ptr(tmpptr);
72
+ gen_helper_get_cp_reg(tmp, cpu_env, tcg_constant_ptr(ri));
73
} else {
74
tmp = load_cpu_offset(ri->fieldoffset);
75
}
76
@@ -XXX,XX +XXX,XX @@ static void do_coproc_insn(DisasContext *s, int cpnum, int is64,
77
tcg_temp_free_i32(tmplo);
78
tcg_temp_free_i32(tmphi);
79
if (ri->writefn) {
80
- TCGv_ptr tmpptr = tcg_const_ptr(ri);
81
- gen_helper_set_cp_reg64(cpu_env, tmpptr, tmp64);
82
- tcg_temp_free_ptr(tmpptr);
83
+ gen_helper_set_cp_reg64(cpu_env, tcg_constant_ptr(ri),
84
+ tmp64);
85
} else {
86
tcg_gen_st_i64(tmp64, cpu_env, ri->fieldoffset);
87
}
88
tcg_temp_free_i64(tmp64);
89
} else {
90
+ TCGv_i32 tmp = load_reg(s, rt);
91
if (ri->writefn) {
92
- TCGv_i32 tmp;
93
- TCGv_ptr tmpptr;
94
- tmp = load_reg(s, rt);
95
- tmpptr = tcg_const_ptr(ri);
96
- gen_helper_set_cp_reg(cpu_env, tmpptr, tmp);
97
- tcg_temp_free_ptr(tmpptr);
98
+ gen_helper_set_cp_reg(cpu_env, tcg_constant_ptr(ri), tmp);
99
tcg_temp_free_i32(tmp);
100
} else {
101
- TCGv_i32 tmp = load_reg(s, rt);
102
store_cpu_offset(tmp, ri->fieldoffset, 4);
103
}
104
}
105
--
106
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-28-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate.c | 8 ++------
9
1 file changed, 2 insertions(+), 6 deletions(-)
10
11
diff --git a/target/arm/translate.c b/target/arm/translate.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate.c
14
+++ b/target/arm/translate.c
15
@@ -XXX,XX +XXX,XX @@ static void gen_srs(DisasContext *s,
16
}
17
18
addr = tcg_temp_new_i32();
19
- tmp = tcg_const_i32(mode);
20
/* get_r13_banked() will raise an exception if called from System mode */
21
gen_set_condexec(s);
22
gen_set_pc_im(s, s->pc_curr);
23
- gen_helper_get_r13_banked(addr, cpu_env, tmp);
24
- tcg_temp_free_i32(tmp);
25
+ gen_helper_get_r13_banked(addr, cpu_env, tcg_constant_i32(mode));
26
switch (amode) {
27
case 0: /* DA */
28
offset = -4;
29
@@ -XXX,XX +XXX,XX @@ static void gen_srs(DisasContext *s,
30
abort();
31
}
32
tcg_gen_addi_i32(addr, addr, offset);
33
- tmp = tcg_const_i32(mode);
34
- gen_helper_set_r13_banked(cpu_env, tmp, addr);
35
- tcg_temp_free_i32(tmp);
36
+ gen_helper_set_r13_banked(cpu_env, tcg_constant_i32(mode), addr);
37
}
38
tcg_temp_free_i32(addr);
39
s->base.is_jmp = DISAS_UPDATE_EXIT;
40
--
41
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-29-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate.c | 11 +++++------
9
1 file changed, 5 insertions(+), 6 deletions(-)
10
11
diff --git a/target/arm/translate.c b/target/arm/translate.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate.c
14
+++ b/target/arm/translate.c
15
@@ -XXX,XX +XXX,XX @@ static bool op_s_rri_rot(DisasContext *s, arg_s_rri_rot *a,
16
void (*gen)(TCGv_i32, TCGv_i32, TCGv_i32),
17
int logic_cc, StoreRegKind kind)
18
{
19
- TCGv_i32 tmp1, tmp2;
20
+ TCGv_i32 tmp1;
21
uint32_t imm;
22
23
imm = ror32(a->imm, a->rot);
24
if (logic_cc && a->rot) {
25
tcg_gen_movi_i32(cpu_CF, imm >> 31);
26
}
27
- tmp2 = tcg_const_i32(imm);
28
tmp1 = load_reg(s, a->rn);
29
30
- gen(tmp1, tmp1, tmp2);
31
- tcg_temp_free_i32(tmp2);
32
+ gen(tmp1, tmp1, tcg_constant_i32(imm));
33
34
if (logic_cc) {
35
gen_logic_CC(tmp1);
36
@@ -XXX,XX +XXX,XX @@ static bool op_s_rxi_rot(DisasContext *s, arg_s_rri_rot *a,
37
if (logic_cc && a->rot) {
38
tcg_gen_movi_i32(cpu_CF, imm >> 31);
39
}
40
- tmp = tcg_const_i32(imm);
41
42
- gen(tmp, tmp);
43
+ tmp = tcg_temp_new_i32();
44
+ gen(tmp, tcg_constant_i32(imm));
45
+
46
if (logic_cc) {
47
gen_logic_CC(tmp);
48
}
49
--
50
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-30-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate.c | 11 +++--------
9
1 file changed, 3 insertions(+), 8 deletions(-)
10
11
diff --git a/target/arm/translate.c b/target/arm/translate.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate.c
14
+++ b/target/arm/translate.c
15
@@ -XXX,XX +XXX,XX @@ static bool trans_ADR(DisasContext *s, arg_ri *a)
16
17
static bool trans_MOVW(DisasContext *s, arg_MOVW *a)
18
{
19
- TCGv_i32 tmp;
20
-
21
if (!ENABLE_ARCH_6T2) {
22
return false;
23
}
24
25
- tmp = tcg_const_i32(a->imm);
26
- store_reg(s, a->rd, tmp);
27
+ store_reg(s, a->rd, tcg_constant_i32(a->imm));
28
return true;
29
}
30
31
@@ -XXX,XX +XXX,XX @@ static bool trans_UMAAL(DisasContext *s, arg_UMAAL *a)
32
t0 = load_reg(s, a->rm);
33
t1 = load_reg(s, a->rn);
34
tcg_gen_mulu2_i32(t0, t1, t0, t1);
35
- zero = tcg_const_i32(0);
36
+ zero = tcg_constant_i32(0);
37
t2 = load_reg(s, a->ra);
38
tcg_gen_add2_i32(t0, t1, t0, t1, t2, zero);
39
tcg_temp_free_i32(t2);
40
t2 = load_reg(s, a->rd);
41
tcg_gen_add2_i32(t0, t1, t0, t1, t2, zero);
42
tcg_temp_free_i32(t2);
43
- tcg_temp_free_i32(zero);
44
store_reg(s, a->ra, t0);
45
store_reg(s, a->rd, t1);
46
return true;
47
@@ -XXX,XX +XXX,XX @@ static bool op_crc32(DisasContext *s, arg_rrr *a, bool c, MemOp sz)
48
default:
49
g_assert_not_reached();
50
}
51
- t3 = tcg_const_i32(1 << sz);
52
+ t3 = tcg_constant_i32(1 << sz);
53
if (c) {
54
gen_helper_crc32c(t1, t1, t2, t3);
55
} else {
56
gen_helper_crc32(t1, t1, t2, t3);
57
}
58
tcg_temp_free_i32(t2);
59
- tcg_temp_free_i32(t3);
60
store_reg(s, a->rd, t1);
61
return true;
62
}
63
--
64
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-31-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate.c | 7 +++----
9
1 file changed, 3 insertions(+), 4 deletions(-)
10
11
diff --git a/target/arm/translate.c b/target/arm/translate.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate.c
14
+++ b/target/arm/translate.c
15
@@ -XXX,XX +XXX,XX @@ static bool trans_MRS_v7m(DisasContext *s, arg_MRS_v7m *a)
16
if (!arm_dc_feature(s, ARM_FEATURE_M)) {
17
return false;
18
}
19
- tmp = tcg_const_i32(a->sysm);
20
- gen_helper_v7m_mrs(tmp, cpu_env, tmp);
21
+ tmp = tcg_temp_new_i32();
22
+ gen_helper_v7m_mrs(tmp, cpu_env, tcg_constant_i32(a->sysm));
23
store_reg(s, a->rd, tmp);
24
return true;
25
}
26
@@ -XXX,XX +XXX,XX @@ static bool trans_MSR_v7m(DisasContext *s, arg_MSR_v7m *a)
27
if (!arm_dc_feature(s, ARM_FEATURE_M)) {
28
return false;
29
}
30
- addr = tcg_const_i32((a->mask << 10) | a->sysm);
31
+ addr = tcg_constant_i32((a->mask << 10) | a->sysm);
32
reg = load_reg(s, a->rn);
33
gen_helper_v7m_msr(cpu_env, addr, reg);
34
- tcg_temp_free_i32(addr);
35
tcg_temp_free_i32(reg);
36
/* If we wrote to CONTROL, the EL might have changed */
37
gen_rebuild_hflags(s, true);
38
--
39
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-32-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate.c | 14 +++++---------
9
1 file changed, 5 insertions(+), 9 deletions(-)
10
11
diff --git a/target/arm/translate.c b/target/arm/translate.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate.c
14
+++ b/target/arm/translate.c
15
@@ -XXX,XX +XXX,XX @@ static bool trans_TT(DisasContext *s, arg_TT *a)
16
}
17
18
addr = load_reg(s, a->rn);
19
- tmp = tcg_const_i32((a->A << 1) | a->T);
20
- gen_helper_v7m_tt(tmp, cpu_env, addr, tmp);
21
+ tmp = tcg_temp_new_i32();
22
+ gen_helper_v7m_tt(tmp, cpu_env, addr, tcg_constant_i32((a->A << 1) | a->T));
23
tcg_temp_free_i32(addr);
24
store_reg(s, a->rd, tmp);
25
return true;
26
@@ -XXX,XX +XXX,XX @@ static bool trans_PKH(DisasContext *s, arg_PKH *a)
27
static bool op_sat(DisasContext *s, arg_sat *a,
28
void (*gen)(TCGv_i32, TCGv_env, TCGv_i32, TCGv_i32))
29
{
30
- TCGv_i32 tmp, satimm;
31
+ TCGv_i32 tmp;
32
int shift = a->imm;
33
34
if (!ENABLE_ARCH_6) {
35
@@ -XXX,XX +XXX,XX @@ static bool op_sat(DisasContext *s, arg_sat *a,
36
tcg_gen_shli_i32(tmp, tmp, shift);
37
}
38
39
- satimm = tcg_const_i32(a->satimm);
40
- gen(tmp, cpu_env, tmp, satimm);
41
- tcg_temp_free_i32(satimm);
42
+ gen(tmp, cpu_env, tmp, tcg_constant_i32(a->satimm));
43
44
store_reg(s, a->rd, tmp);
45
return true;
46
@@ -XXX,XX +XXX,XX @@ static bool op_smmla(DisasContext *s, arg_rrrr *a, bool round, bool sub)
47
* a non-zero multiplicand lowpart, and the correct result
48
* lowpart for rounding.
49
*/
50
- TCGv_i32 zero = tcg_const_i32(0);
51
- tcg_gen_sub2_i32(t2, t1, zero, t3, t2, t1);
52
- tcg_temp_free_i32(zero);
53
+ tcg_gen_sub2_i32(t2, t1, tcg_constant_i32(0), t3, t2, t1);
54
} else {
55
tcg_gen_add_i32(t1, t1, t3);
56
}
57
--
58
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-33-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate.c | 12 ++++--------
9
1 file changed, 4 insertions(+), 8 deletions(-)
10
11
diff --git a/target/arm/translate.c b/target/arm/translate.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate.c
14
+++ b/target/arm/translate.c
15
@@ -XXX,XX +XXX,XX @@ static bool op_stm(DisasContext *s, arg_ldst_block *a, int min_n)
16
{
17
int i, j, n, list, mem_idx;
18
bool user = a->u;
19
- TCGv_i32 addr, tmp, tmp2;
20
+ TCGv_i32 addr, tmp;
21
22
if (user) {
23
/* STM (user) */
24
@@ -XXX,XX +XXX,XX @@ static bool op_stm(DisasContext *s, arg_ldst_block *a, int min_n)
25
26
if (user && i != 15) {
27
tmp = tcg_temp_new_i32();
28
- tmp2 = tcg_const_i32(i);
29
- gen_helper_get_user_reg(tmp, cpu_env, tmp2);
30
- tcg_temp_free_i32(tmp2);
31
+ gen_helper_get_user_reg(tmp, cpu_env, tcg_constant_i32(i));
32
} else {
33
tmp = load_reg(s, i);
34
}
35
@@ -XXX,XX +XXX,XX @@ static bool do_ldm(DisasContext *s, arg_ldst_block *a, int min_n)
36
bool loaded_base;
37
bool user = a->u;
38
bool exc_return = false;
39
- TCGv_i32 addr, tmp, tmp2, loaded_var;
40
+ TCGv_i32 addr, tmp, loaded_var;
41
42
if (user) {
43
/* LDM (user), LDM (exception return) */
44
@@ -XXX,XX +XXX,XX @@ static bool do_ldm(DisasContext *s, arg_ldst_block *a, int min_n)
45
tmp = tcg_temp_new_i32();
46
gen_aa32_ld_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
47
if (user) {
48
- tmp2 = tcg_const_i32(i);
49
- gen_helper_set_user_reg(cpu_env, tmp2, tmp);
50
- tcg_temp_free_i32(tmp2);
51
+ gen_helper_set_user_reg(cpu_env, tcg_constant_i32(i), tmp);
52
tcg_temp_free_i32(tmp);
53
} else if (i == a->rn) {
54
loaded_var = tmp;
55
--
56
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-34-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate.c | 16 +++++-----------
9
1 file changed, 5 insertions(+), 11 deletions(-)
10
11
diff --git a/target/arm/translate.c b/target/arm/translate.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate.c
14
+++ b/target/arm/translate.c
15
@@ -XXX,XX +XXX,XX @@ static bool trans_CLRM(DisasContext *s, arg_CLRM *a)
16
17
s->eci_handled = true;
18
19
- zero = tcg_const_i32(0);
20
+ zero = tcg_constant_i32(0);
21
for (i = 0; i < 15; i++) {
22
if (extract32(a->list, i, 1)) {
23
/* Clear R[i] */
24
@@ -XXX,XX +XXX,XX @@ static bool trans_CLRM(DisasContext *s, arg_CLRM *a)
25
* Clear APSR (by calling the MSR helper with the same argument
26
* as for "MSR APSR_nzcvqg, Rn": mask = 0b1100, SYSM=0)
27
*/
28
- TCGv_i32 maskreg = tcg_const_i32(0xc << 8);
29
- gen_helper_v7m_msr(cpu_env, maskreg, zero);
30
- tcg_temp_free_i32(maskreg);
31
+ gen_helper_v7m_msr(cpu_env, tcg_constant_i32(0xc00), zero);
32
}
33
- tcg_temp_free_i32(zero);
34
clear_eci_state(s);
35
return true;
36
}
37
@@ -XXX,XX +XXX,XX @@ static bool trans_DLS(DisasContext *s, arg_DLS *a)
38
store_reg(s, 14, tmp);
39
if (a->size != 4) {
40
/* DLSTP: set FPSCR.LTPSIZE */
41
- tmp = tcg_const_i32(a->size);
42
- store_cpu_field(tmp, v7m.ltpsize);
43
+ store_cpu_field(tcg_constant_i32(a->size), v7m.ltpsize);
44
s->base.is_jmp = DISAS_UPDATE_NOCHAIN;
45
}
46
return true;
47
@@ -XXX,XX +XXX,XX @@ static bool trans_WLS(DisasContext *s, arg_WLS *a)
48
*/
49
bool ok = vfp_access_check(s);
50
assert(ok);
51
- tmp = tcg_const_i32(a->size);
52
- store_cpu_field(tmp, v7m.ltpsize);
53
+ store_cpu_field(tcg_constant_i32(a->size), v7m.ltpsize);
54
/*
55
* LTPSIZE updated, but MVE_NO_PRED will always be the same thing (0)
56
* when we take this upcoming exit from this TB, so gen_jmp_tb() is OK.
57
@@ -XXX,XX +XXX,XX @@ static bool trans_LE(DisasContext *s, arg_LE *a)
58
gen_set_label(loopend);
59
if (a->tp) {
60
/* Exits from tail-pred loops must reset LTPSIZE to 4 */
61
- tmp = tcg_const_i32(4);
62
- store_cpu_field(tmp, v7m.ltpsize);
63
+ store_cpu_field(tcg_constant_i32(4), v7m.ltpsize);
64
}
65
/* End TB, continuing to following insn */
66
gen_jmp_tb(s, s->base.pc_next, 1);
67
--
68
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-35-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate.c | 9 +++------
9
1 file changed, 3 insertions(+), 6 deletions(-)
10
11
diff --git a/target/arm/translate.c b/target/arm/translate.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate.c
14
+++ b/target/arm/translate.c
15
@@ -XXX,XX +XXX,XX @@ static bool trans_CPS_v7m(DisasContext *s, arg_CPS_v7m *a)
16
return true;
17
}
18
19
- tmp = tcg_const_i32(a->im);
20
+ tmp = tcg_constant_i32(a->im);
21
/* FAULTMASK */
22
if (a->F) {
23
- addr = tcg_const_i32(19);
24
+ addr = tcg_constant_i32(19);
25
gen_helper_v7m_msr(cpu_env, addr, tmp);
26
- tcg_temp_free_i32(addr);
27
}
28
/* PRIMASK */
29
if (a->I) {
30
- addr = tcg_const_i32(16);
31
+ addr = tcg_constant_i32(16);
32
gen_helper_v7m_msr(cpu_env, addr, tmp);
33
- tcg_temp_free_i32(addr);
34
}
35
gen_rebuild_hflags(s, false);
36
- tcg_temp_free_i32(tmp);
37
gen_lookup_tb(s);
38
return true;
39
}
40
--
41
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-36-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate.c | 7 +++----
9
1 file changed, 3 insertions(+), 4 deletions(-)
10
11
diff --git a/target/arm/translate.c b/target/arm/translate.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate.c
14
+++ b/target/arm/translate.c
15
@@ -XXX,XX +XXX,XX @@ static bool trans_CSEL(DisasContext *s, arg_CSEL *a)
16
}
17
18
/* In this insn input reg fields of 0b1111 mean "zero", not "PC" */
19
+ zero = tcg_constant_i32(0);
20
if (a->rn == 15) {
21
- rn = tcg_const_i32(0);
22
+ rn = zero;
23
} else {
24
rn = load_reg(s, a->rn);
25
}
26
if (a->rm == 15) {
27
- rm = tcg_const_i32(0);
28
+ rm = zero;
29
} else {
30
rm = load_reg(s, a->rm);
31
}
32
@@ -XXX,XX +XXX,XX @@ static bool trans_CSEL(DisasContext *s, arg_CSEL *a)
33
}
34
35
arm_test_cc(&c, a->fcond);
36
- zero = tcg_const_i32(0);
37
tcg_gen_movcond_i32(c.cond, rn, c.value, zero, rn, rm);
38
arm_free_cc(&c);
39
- tcg_temp_free_i32(zero);
40
41
store_reg(s, a->rd, rn);
42
tcg_temp_free_i32(rm);
43
--
44
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-37-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-sve.c | 12 ++++--------
9
1 file changed, 4 insertions(+), 8 deletions(-)
10
11
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-sve.c
14
+++ b/target/arm/translate-sve.c
15
@@ -XXX,XX +XXX,XX @@ static void do_index(DisasContext *s, int esz, int rd,
16
static bool trans_INDEX_ii(DisasContext *s, arg_INDEX_ii *a)
17
{
18
if (sve_access_check(s)) {
19
- TCGv_i64 start = tcg_const_i64(a->imm1);
20
- TCGv_i64 incr = tcg_const_i64(a->imm2);
21
+ TCGv_i64 start = tcg_constant_i64(a->imm1);
22
+ TCGv_i64 incr = tcg_constant_i64(a->imm2);
23
do_index(s, a->esz, a->rd, start, incr);
24
- tcg_temp_free_i64(start);
25
- tcg_temp_free_i64(incr);
26
}
27
return true;
28
}
29
@@ -XXX,XX +XXX,XX @@ static bool trans_INDEX_ii(DisasContext *s, arg_INDEX_ii *a)
30
static bool trans_INDEX_ir(DisasContext *s, arg_INDEX_ir *a)
31
{
32
if (sve_access_check(s)) {
33
- TCGv_i64 start = tcg_const_i64(a->imm);
34
+ TCGv_i64 start = tcg_constant_i64(a->imm);
35
TCGv_i64 incr = cpu_reg(s, a->rm);
36
do_index(s, a->esz, a->rd, start, incr);
37
- tcg_temp_free_i64(start);
38
}
39
return true;
40
}
41
@@ -XXX,XX +XXX,XX @@ static bool trans_INDEX_ri(DisasContext *s, arg_INDEX_ri *a)
42
{
43
if (sve_access_check(s)) {
44
TCGv_i64 start = cpu_reg(s, a->rn);
45
- TCGv_i64 incr = tcg_const_i64(a->imm);
46
+ TCGv_i64 incr = tcg_constant_i64(a->imm);
47
do_index(s, a->esz, a->rd, start, incr);
48
- tcg_temp_free_i64(incr);
49
}
50
return true;
51
}
52
--
53
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-38-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-sve.c | 18 ++++++------------
9
1 file changed, 6 insertions(+), 12 deletions(-)
10
11
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-sve.c
14
+++ b/target/arm/translate-sve.c
15
@@ -XXX,XX +XXX,XX @@ static bool trans_SINCDEC_r_32(DisasContext *s, arg_incdec_cnt *a)
16
tcg_gen_ext32s_i64(reg, reg);
17
}
18
} else {
19
- TCGv_i64 t = tcg_const_i64(inc);
20
- do_sat_addsub_32(reg, t, a->u, a->d);
21
- tcg_temp_free_i64(t);
22
+ do_sat_addsub_32(reg, tcg_constant_i64(inc), a->u, a->d);
23
}
24
return true;
25
}
26
@@ -XXX,XX +XXX,XX @@ static bool trans_SINCDEC_r_64(DisasContext *s, arg_incdec_cnt *a)
27
TCGv_i64 reg = cpu_reg(s, a->rd);
28
29
if (inc != 0) {
30
- TCGv_i64 t = tcg_const_i64(inc);
31
- do_sat_addsub_64(reg, t, a->u, a->d);
32
- tcg_temp_free_i64(t);
33
+ do_sat_addsub_64(reg, tcg_constant_i64(inc), a->u, a->d);
34
}
35
return true;
36
}
37
@@ -XXX,XX +XXX,XX @@ static bool trans_INCDEC_v(DisasContext *s, arg_incdec2_cnt *a)
38
39
if (inc != 0) {
40
if (sve_access_check(s)) {
41
- TCGv_i64 t = tcg_const_i64(a->d ? -inc : inc);
42
tcg_gen_gvec_adds(a->esz, vec_full_reg_offset(s, a->rd),
43
vec_full_reg_offset(s, a->rn),
44
- t, fullsz, fullsz);
45
- tcg_temp_free_i64(t);
46
+ tcg_constant_i64(a->d ? -inc : inc),
47
+ fullsz, fullsz);
48
}
49
} else {
50
do_mov_z(s, a->rd, a->rn);
51
@@ -XXX,XX +XXX,XX @@ static bool trans_SINCDEC_v(DisasContext *s, arg_incdec2_cnt *a)
52
53
if (inc != 0) {
54
if (sve_access_check(s)) {
55
- TCGv_i64 t = tcg_const_i64(inc);
56
- do_sat_addsub_vec(s, a->esz, a->rd, a->rn, t, a->u, a->d);
57
- tcg_temp_free_i64(t);
58
+ do_sat_addsub_vec(s, a->esz, a->rd, a->rn,
59
+ tcg_constant_i64(inc), a->u, a->d);
60
}
61
} else {
62
do_mov_z(s, a->rd, a->rn);
63
--
64
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-39-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-sve.c | 13 ++++---------
9
1 file changed, 4 insertions(+), 9 deletions(-)
10
11
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-sve.c
14
+++ b/target/arm/translate-sve.c
15
@@ -XXX,XX +XXX,XX @@ static bool trans_FCPY(DisasContext *s, arg_FCPY *a)
16
if (sve_access_check(s)) {
17
/* Decode the VFP immediate. */
18
uint64_t imm = vfp_expand_imm(a->esz, a->imm);
19
- TCGv_i64 t_imm = tcg_const_i64(imm);
20
- do_cpy_m(s, a->esz, a->rd, a->rn, a->pg, t_imm);
21
- tcg_temp_free_i64(t_imm);
22
+ do_cpy_m(s, a->esz, a->rd, a->rn, a->pg, tcg_constant_i64(imm));
23
}
24
return true;
25
}
26
@@ -XXX,XX +XXX,XX @@ static bool trans_CPY_m_i(DisasContext *s, arg_rpri_esz *a)
27
return false;
28
}
29
if (sve_access_check(s)) {
30
- TCGv_i64 t_imm = tcg_const_i64(a->imm);
31
- do_cpy_m(s, a->esz, a->rd, a->rn, a->pg, t_imm);
32
- tcg_temp_free_i64(t_imm);
33
+ do_cpy_m(s, a->esz, a->rd, a->rn, a->pg, tcg_constant_i64(a->imm));
34
}
35
return true;
36
}
37
@@ -XXX,XX +XXX,XX @@ static bool trans_CPY_z_i(DisasContext *s, arg_CPY_z_i *a)
38
}
39
if (sve_access_check(s)) {
40
unsigned vsz = vec_full_reg_size(s);
41
- TCGv_i64 t_imm = tcg_const_i64(a->imm);
42
tcg_gen_gvec_2i_ool(vec_full_reg_offset(s, a->rd),
43
pred_full_reg_offset(s, a->pg),
44
- t_imm, vsz, vsz, 0, fns[a->esz]);
45
- tcg_temp_free_i64(t_imm);
46
+ tcg_constant_i64(a->imm),
47
+ vsz, vsz, 0, fns[a->esz]);
48
}
49
return true;
50
}
51
--
52
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-40-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-sve.c | 12 ++++--------
9
1 file changed, 4 insertions(+), 8 deletions(-)
10
11
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-sve.c
14
+++ b/target/arm/translate-sve.c
15
@@ -XXX,XX +XXX,XX @@ static void incr_last_active(DisasContext *s, TCGv_i32 last, int esz)
16
if (is_power_of_2(vsz)) {
17
tcg_gen_andi_i32(last, last, vsz - 1);
18
} else {
19
- TCGv_i32 max = tcg_const_i32(vsz);
20
- TCGv_i32 zero = tcg_const_i32(0);
21
+ TCGv_i32 max = tcg_constant_i32(vsz);
22
+ TCGv_i32 zero = tcg_constant_i32(0);
23
tcg_gen_movcond_i32(TCG_COND_GEU, last, last, max, zero, last);
24
- tcg_temp_free_i32(max);
25
- tcg_temp_free_i32(zero);
26
}
27
}
28
29
@@ -XXX,XX +XXX,XX @@ static void wrap_last_active(DisasContext *s, TCGv_i32 last, int esz)
30
if (is_power_of_2(vsz)) {
31
tcg_gen_andi_i32(last, last, vsz - 1);
32
} else {
33
- TCGv_i32 max = tcg_const_i32(vsz - (1 << esz));
34
- TCGv_i32 zero = tcg_const_i32(0);
35
+ TCGv_i32 max = tcg_constant_i32(vsz - (1 << esz));
36
+ TCGv_i32 zero = tcg_constant_i32(0);
37
tcg_gen_movcond_i32(TCG_COND_LT, last, last, zero, max, last);
38
- tcg_temp_free_i32(max);
39
- tcg_temp_free_i32(zero);
40
}
41
}
42
43
--
44
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-41-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-sve.c | 7 +++----
9
1 file changed, 3 insertions(+), 4 deletions(-)
10
11
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-sve.c
14
+++ b/target/arm/translate-sve.c
15
@@ -XXX,XX +XXX,XX @@ static void do_clast_scalar(DisasContext *s, int esz, int pg, int rm,
16
bool before, TCGv_i64 reg_val)
17
{
18
TCGv_i32 last = tcg_temp_new_i32();
19
- TCGv_i64 ele, cmp, zero;
20
+ TCGv_i64 ele, cmp;
21
22
find_last_active(s, last, esz, pg);
23
24
@@ -XXX,XX +XXX,XX @@ static void do_clast_scalar(DisasContext *s, int esz, int pg, int rm,
25
ele = load_last_active(s, last, rm, esz);
26
tcg_temp_free_i32(last);
27
28
- zero = tcg_const_i64(0);
29
- tcg_gen_movcond_i64(TCG_COND_GE, reg_val, cmp, zero, ele, reg_val);
30
+ tcg_gen_movcond_i64(TCG_COND_GE, reg_val, cmp, tcg_constant_i64(0),
31
+ ele, reg_val);
32
33
- tcg_temp_free_i64(zero);
34
tcg_temp_free_i64(cmp);
35
tcg_temp_free_i64(ele);
36
}
37
--
38
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-42-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-sve.c | 20 +++++++-------------
9
1 file changed, 7 insertions(+), 13 deletions(-)
10
11
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-sve.c
14
+++ b/target/arm/translate-sve.c
15
@@ -XXX,XX +XXX,XX @@ static bool trans_CTERM(DisasContext *s, arg_CTERM *a)
16
static bool trans_WHILE(DisasContext *s, arg_WHILE *a)
17
{
18
TCGv_i64 op0, op1, t0, t1, tmax;
19
- TCGv_i32 t2, t3;
20
+ TCGv_i32 t2;
21
TCGv_ptr ptr;
22
unsigned vsz = vec_full_reg_size(s);
23
unsigned desc = 0;
24
@@ -XXX,XX +XXX,XX @@ static bool trans_WHILE(DisasContext *s, arg_WHILE *a)
25
}
26
}
27
28
- tmax = tcg_const_i64(vsz >> a->esz);
29
+ tmax = tcg_constant_i64(vsz >> a->esz);
30
if (eq) {
31
/* Equality means one more iteration. */
32
tcg_gen_addi_i64(t0, t0, 1);
33
@@ -XXX,XX +XXX,XX @@ static bool trans_WHILE(DisasContext *s, arg_WHILE *a)
34
35
/* Bound to the maximum. */
36
tcg_gen_umin_i64(t0, t0, tmax);
37
- tcg_temp_free_i64(tmax);
38
39
/* Set the count to zero if the condition is false. */
40
tcg_gen_movi_i64(t1, 0);
41
@@ -XXX,XX +XXX,XX @@ static bool trans_WHILE(DisasContext *s, arg_WHILE *a)
42
43
desc = FIELD_DP32(desc, PREDDESC, OPRSZ, vsz / 8);
44
desc = FIELD_DP32(desc, PREDDESC, ESZ, a->esz);
45
- t3 = tcg_const_i32(desc);
46
47
ptr = tcg_temp_new_ptr();
48
tcg_gen_addi_ptr(ptr, cpu_env, pred_full_reg_offset(s, a->rd));
49
50
if (a->lt) {
51
- gen_helper_sve_whilel(t2, ptr, t2, t3);
52
+ gen_helper_sve_whilel(t2, ptr, t2, tcg_constant_i32(desc));
53
} else {
54
- gen_helper_sve_whileg(t2, ptr, t2, t3);
55
+ gen_helper_sve_whileg(t2, ptr, t2, tcg_constant_i32(desc));
56
}
57
do_pred_flags(t2);
58
59
tcg_temp_free_ptr(ptr);
60
tcg_temp_free_i32(t2);
61
- tcg_temp_free_i32(t3);
62
return true;
63
}
64
65
static bool trans_WHILE_ptr(DisasContext *s, arg_WHILE_ptr *a)
66
{
67
TCGv_i64 op0, op1, diff, t1, tmax;
68
- TCGv_i32 t2, t3;
69
+ TCGv_i32 t2;
70
TCGv_ptr ptr;
71
unsigned vsz = vec_full_reg_size(s);
72
unsigned desc = 0;
73
@@ -XXX,XX +XXX,XX @@ static bool trans_WHILE_ptr(DisasContext *s, arg_WHILE_ptr *a)
74
op0 = read_cpu_reg(s, a->rn, 1);
75
op1 = read_cpu_reg(s, a->rm, 1);
76
77
- tmax = tcg_const_i64(vsz);
78
+ tmax = tcg_constant_i64(vsz);
79
diff = tcg_temp_new_i64();
80
81
if (a->rw) {
82
@@ -XXX,XX +XXX,XX @@ static bool trans_WHILE_ptr(DisasContext *s, arg_WHILE_ptr *a)
83
84
/* Bound to the maximum. */
85
tcg_gen_umin_i64(diff, diff, tmax);
86
- tcg_temp_free_i64(tmax);
87
88
/* Since we're bounded, pass as a 32-bit type. */
89
t2 = tcg_temp_new_i32();
90
@@ -XXX,XX +XXX,XX @@ static bool trans_WHILE_ptr(DisasContext *s, arg_WHILE_ptr *a)
91
92
desc = FIELD_DP32(desc, PREDDESC, OPRSZ, vsz / 8);
93
desc = FIELD_DP32(desc, PREDDESC, ESZ, a->esz);
94
- t3 = tcg_const_i32(desc);
95
96
ptr = tcg_temp_new_ptr();
97
tcg_gen_addi_ptr(ptr, cpu_env, pred_full_reg_offset(s, a->rd));
98
99
- gen_helper_sve_whilel(t2, ptr, t2, t3);
100
+ gen_helper_sve_whilel(t2, ptr, t2, tcg_constant_i32(desc));
101
do_pred_flags(t2);
102
103
tcg_temp_free_ptr(ptr);
104
tcg_temp_free_i32(t2);
105
- tcg_temp_free_i32(t3);
106
return true;
107
}
108
109
--
110
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-43-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-sve.c | 12 ++++--------
9
1 file changed, 4 insertions(+), 8 deletions(-)
10
11
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-sve.c
14
+++ b/target/arm/translate-sve.c
15
@@ -XXX,XX +XXX,XX @@ static bool trans_LD1_zpiz(DisasContext *s, arg_LD1_zpiz *a)
16
gen_helper_gvec_mem_scatter *fn = NULL;
17
bool be = s->be_data == MO_BE;
18
bool mte = s->mte_active[0];
19
- TCGv_i64 imm;
20
21
if (a->esz < a->msz || (a->esz == a->msz && !a->u)) {
22
return false;
23
@@ -XXX,XX +XXX,XX @@ static bool trans_LD1_zpiz(DisasContext *s, arg_LD1_zpiz *a)
24
/* Treat LD1_zpiz (zn[x] + imm) the same way as LD1_zprz (rn + zm[x])
25
* by loading the immediate into the scalar parameter.
26
*/
27
- imm = tcg_const_i64(a->imm << a->msz);
28
- do_mem_zpz(s, a->rd, a->pg, a->rn, 0, imm, a->msz, false, fn);
29
- tcg_temp_free_i64(imm);
30
+ do_mem_zpz(s, a->rd, a->pg, a->rn, 0,
31
+ tcg_constant_i64(a->imm << a->msz), a->msz, false, fn);
32
return true;
33
}
34
35
@@ -XXX,XX +XXX,XX @@ static bool trans_ST1_zpiz(DisasContext *s, arg_ST1_zpiz *a)
36
gen_helper_gvec_mem_scatter *fn = NULL;
37
bool be = s->be_data == MO_BE;
38
bool mte = s->mte_active[0];
39
- TCGv_i64 imm;
40
41
if (a->esz < a->msz) {
42
return false;
43
@@ -XXX,XX +XXX,XX @@ static bool trans_ST1_zpiz(DisasContext *s, arg_ST1_zpiz *a)
44
/* Treat ST1_zpiz (zn[x] + imm) the same way as ST1_zprz (rn + zm[x])
45
* by loading the immediate into the scalar parameter.
46
*/
47
- imm = tcg_const_i64(a->imm << a->msz);
48
- do_mem_zpz(s, a->rd, a->pg, a->rn, 0, imm, a->msz, true, fn);
49
- tcg_temp_free_i64(imm);
50
+ do_mem_zpz(s, a->rd, a->pg, a->rn, 0,
51
+ tcg_constant_i64(a->imm << a->msz), a->msz, true, fn);
52
return true;
53
}
54
55
--
56
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-44-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-sve.c | 4 +---
9
1 file changed, 1 insertion(+), 3 deletions(-)
10
11
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-sve.c
14
+++ b/target/arm/translate-sve.c
15
@@ -XXX,XX +XXX,XX @@ static bool trans_SUBR_zzi(DisasContext *s, arg_rri_esz *a)
16
}
17
if (sve_access_check(s)) {
18
unsigned vsz = vec_full_reg_size(s);
19
- TCGv_i64 c = tcg_const_i64(a->imm);
20
tcg_gen_gvec_2s(vec_full_reg_offset(s, a->rd),
21
vec_full_reg_offset(s, a->rn),
22
- vsz, vsz, c, &op[a->esz]);
23
- tcg_temp_free_i64(c);
24
+ vsz, vsz, tcg_constant_i64(a->imm), &op[a->esz]);
25
}
26
return true;
27
}
28
--
29
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-45-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-sve.c | 15 +++++----------
9
1 file changed, 5 insertions(+), 10 deletions(-)
10
11
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-sve.c
14
+++ b/target/arm/translate-sve.c
15
@@ -XXX,XX +XXX,XX @@ static bool do_zzi_sat(DisasContext *s, arg_rri_esz *a, bool u, bool d)
16
return false;
17
}
18
if (sve_access_check(s)) {
19
- TCGv_i64 val = tcg_const_i64(a->imm);
20
- do_sat_addsub_vec(s, a->esz, a->rd, a->rn, val, u, d);
21
- tcg_temp_free_i64(val);
22
+ do_sat_addsub_vec(s, a->esz, a->rd, a->rn,
23
+ tcg_constant_i64(a->imm), u, d);
24
}
25
return true;
26
}
27
@@ -XXX,XX +XXX,XX @@ static bool do_zzi_ool(DisasContext *s, arg_rri_esz *a, gen_helper_gvec_2i *fn)
28
{
29
if (sve_access_check(s)) {
30
unsigned vsz = vec_full_reg_size(s);
31
- TCGv_i64 c = tcg_const_i64(a->imm);
32
-
33
tcg_gen_gvec_2i_ool(vec_full_reg_offset(s, a->rd),
34
vec_full_reg_offset(s, a->rn),
35
- c, vsz, vsz, 0, fn);
36
- tcg_temp_free_i64(c);
37
+ tcg_constant_i64(a->imm), vsz, vsz, 0, fn);
38
}
39
return true;
40
}
41
@@ -XXX,XX +XXX,XX @@ static void do_fp_scalar(DisasContext *s, int zd, int zn, int pg, bool is_fp16,
42
static void do_fp_imm(DisasContext *s, arg_rpri_esz *a, uint64_t imm,
43
gen_helper_sve_fp2scalar *fn)
44
{
45
- TCGv_i64 temp = tcg_const_i64(imm);
46
- do_fp_scalar(s, a->rd, a->rn, a->pg, a->esz == MO_16, temp, fn);
47
- tcg_temp_free_i64(temp);
48
+ do_fp_scalar(s, a->rd, a->rn, a->pg, a->esz == MO_16,
49
+ tcg_constant_i64(imm), fn);
50
}
51
52
#define DO_FP_IMM(NAME, name, const0, const1) \
53
--
54
2.25.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
In these cases, 't' did double-duty as zero source and
4
temporary destination. Split the two uses.
5
6
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
7
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
8
Message-id: 20220426163043.100432-46-richard.henderson@linaro.org
9
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10
---
11
target/arm/translate-sve.c | 17 ++++++++---------
12
1 file changed, 8 insertions(+), 9 deletions(-)
13
14
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
15
index XXXXXXX..XXXXXXX 100644
16
--- a/target/arm/translate-sve.c
17
+++ b/target/arm/translate-sve.c
18
@@ -XXX,XX +XXX,XX @@ static void do_predtest(DisasContext *s, int dofs, int gofs, int words)
19
{
20
TCGv_ptr dptr = tcg_temp_new_ptr();
21
TCGv_ptr gptr = tcg_temp_new_ptr();
22
- TCGv_i32 t;
23
+ TCGv_i32 t = tcg_temp_new_i32();
24
25
tcg_gen_addi_ptr(dptr, cpu_env, dofs);
26
tcg_gen_addi_ptr(gptr, cpu_env, gofs);
27
- t = tcg_const_i32(words);
28
29
- gen_helper_sve_predtest(t, dptr, gptr, t);
30
+ gen_helper_sve_predtest(t, dptr, gptr, tcg_constant_i32(words));
31
tcg_temp_free_ptr(dptr);
32
tcg_temp_free_ptr(gptr);
33
34
@@ -XXX,XX +XXX,XX @@ static bool do_pfirst_pnext(DisasContext *s, arg_rr_esz *a,
35
36
tcg_gen_addi_ptr(t_pd, cpu_env, pred_full_reg_offset(s, a->rd));
37
tcg_gen_addi_ptr(t_pg, cpu_env, pred_full_reg_offset(s, a->rn));
38
- t = tcg_const_i32(desc);
39
+ t = tcg_temp_new_i32();
40
41
- gen_fn(t, t_pd, t_pg, t);
42
+ gen_fn(t, t_pd, t_pg, tcg_constant_i32(desc));
43
tcg_temp_free_ptr(t_pd);
44
tcg_temp_free_ptr(t_pg);
45
46
@@ -XXX,XX +XXX,XX @@ static bool do_ppzz_flags(DisasContext *s, arg_rprr_esz *a,
47
}
48
49
vsz = vec_full_reg_size(s);
50
- t = tcg_const_i32(simd_desc(vsz, vsz, 0));
51
+ t = tcg_temp_new_i32();
52
pd = tcg_temp_new_ptr();
53
zn = tcg_temp_new_ptr();
54
zm = tcg_temp_new_ptr();
55
@@ -XXX,XX +XXX,XX @@ static bool do_ppzz_flags(DisasContext *s, arg_rprr_esz *a,
56
tcg_gen_addi_ptr(zm, cpu_env, vec_full_reg_offset(s, a->rm));
57
tcg_gen_addi_ptr(pg, cpu_env, pred_full_reg_offset(s, a->pg));
58
59
- gen_fn(t, pd, zn, zm, pg, t);
60
+ gen_fn(t, pd, zn, zm, pg, tcg_constant_i32(simd_desc(vsz, vsz, 0)));
61
62
tcg_temp_free_ptr(pd);
63
tcg_temp_free_ptr(zn);
64
@@ -XXX,XX +XXX,XX @@ static bool do_ppzi_flags(DisasContext *s, arg_rpri_esz *a,
65
}
66
67
vsz = vec_full_reg_size(s);
68
- t = tcg_const_i32(simd_desc(vsz, vsz, a->imm));
69
+ t = tcg_temp_new_i32();
70
pd = tcg_temp_new_ptr();
71
zn = tcg_temp_new_ptr();
72
pg = tcg_temp_new_ptr();
73
@@ -XXX,XX +XXX,XX @@ static bool do_ppzi_flags(DisasContext *s, arg_rpri_esz *a,
74
tcg_gen_addi_ptr(zn, cpu_env, vec_full_reg_offset(s, a->rn));
75
tcg_gen_addi_ptr(pg, cpu_env, pred_full_reg_offset(s, a->pg));
76
77
- gen_fn(t, pd, zn, pg, t);
78
+ gen_fn(t, pd, zn, pg, tcg_constant_i32(simd_desc(vsz, vsz, a->imm)));
79
80
tcg_temp_free_ptr(pd);
81
tcg_temp_free_ptr(zn);
82
--
83
2.25.1
diff view generated by jsdifflib
1
From: Philippe Mathieu-Daudé <f4bug@amsat.org>
1
From: Richard Henderson <richard.henderson@linaro.org>
2
2
3
Per the Physical Layer Simplified Spec. "4.3.10.4 Switch Function Status":
3
In these cases, 't' did double-duty as zero source and
4
temporary destination. Split the two uses and narrow
5
the scope of the temp.
4
6
5
The block length is predefined to 512 bits
7
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
6
7
and "4.10.2 SD Status":
8
9
The SD Status contains status bits that are related to the SD Memory Card
10
proprietary features and may be used for future application-specific usage.
11
The size of the SD Status is one data block of 512 bit. The content of this
12
register is transmitted to the Host over the DAT bus along with a 16-bit CRC.
13
14
Thus the 16-bit CRC goes at offset 64.
15
16
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
17
Message-id: 20180509060104.4458-3-f4bug@amsat.org
18
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
8
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
9
Message-id: 20220426163043.100432-47-richard.henderson@linaro.org
19
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
20
---
11
---
21
hw/sd/sd.c | 2 +-
12
target/arm/translate-sve.c | 18 ++++++++++--------
22
1 file changed, 1 insertion(+), 1 deletion(-)
13
1 file changed, 10 insertions(+), 8 deletions(-)
23
14
24
diff --git a/hw/sd/sd.c b/hw/sd/sd.c
15
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
25
index XXXXXXX..XXXXXXX 100644
16
index XXXXXXX..XXXXXXX 100644
26
--- a/hw/sd/sd.c
17
--- a/target/arm/translate-sve.c
27
+++ b/hw/sd/sd.c
18
+++ b/target/arm/translate-sve.c
28
@@ -XXX,XX +XXX,XX @@ static void sd_function_switch(SDState *sd, uint32_t arg)
19
@@ -XXX,XX +XXX,XX @@ static bool do_brk3(DisasContext *s, arg_rprr_s *a,
29
sd->data[14 + (i >> 1)] = new_func << ((i * 4) & 4);
20
TCGv_ptr n = tcg_temp_new_ptr();
21
TCGv_ptr m = tcg_temp_new_ptr();
22
TCGv_ptr g = tcg_temp_new_ptr();
23
- TCGv_i32 t = tcg_const_i32(FIELD_DP32(0, PREDDESC, OPRSZ, vsz));
24
+ TCGv_i32 desc = tcg_constant_i32(FIELD_DP32(0, PREDDESC, OPRSZ, vsz));
25
26
tcg_gen_addi_ptr(d, cpu_env, pred_full_reg_offset(s, a->rd));
27
tcg_gen_addi_ptr(n, cpu_env, pred_full_reg_offset(s, a->rn));
28
@@ -XXX,XX +XXX,XX @@ static bool do_brk3(DisasContext *s, arg_rprr_s *a,
29
tcg_gen_addi_ptr(g, cpu_env, pred_full_reg_offset(s, a->pg));
30
31
if (a->s) {
32
- fn_s(t, d, n, m, g, t);
33
+ TCGv_i32 t = tcg_temp_new_i32();
34
+ fn_s(t, d, n, m, g, desc);
35
do_pred_flags(t);
36
+ tcg_temp_free_i32(t);
37
} else {
38
- fn(d, n, m, g, t);
39
+ fn(d, n, m, g, desc);
30
}
40
}
31
memset(&sd->data[17], 0, 47);
41
tcg_temp_free_ptr(d);
32
- stw_be_p(sd->data + 65, sd_crc16(sd->data, 64));
42
tcg_temp_free_ptr(n);
33
+ stw_be_p(sd->data + 64, sd_crc16(sd->data, 64));
43
tcg_temp_free_ptr(m);
44
tcg_temp_free_ptr(g);
45
- tcg_temp_free_i32(t);
46
return true;
34
}
47
}
35
48
36
static inline bool sd_wp_addr(SDState *sd, uint64_t addr)
49
@@ -XXX,XX +XXX,XX @@ static bool do_brk2(DisasContext *s, arg_rpr_s *a,
50
TCGv_ptr d = tcg_temp_new_ptr();
51
TCGv_ptr n = tcg_temp_new_ptr();
52
TCGv_ptr g = tcg_temp_new_ptr();
53
- TCGv_i32 t = tcg_const_i32(FIELD_DP32(0, PREDDESC, OPRSZ, vsz));
54
+ TCGv_i32 desc = tcg_constant_i32(FIELD_DP32(0, PREDDESC, OPRSZ, vsz));
55
56
tcg_gen_addi_ptr(d, cpu_env, pred_full_reg_offset(s, a->rd));
57
tcg_gen_addi_ptr(n, cpu_env, pred_full_reg_offset(s, a->rn));
58
tcg_gen_addi_ptr(g, cpu_env, pred_full_reg_offset(s, a->pg));
59
60
if (a->s) {
61
- fn_s(t, d, n, g, t);
62
+ TCGv_i32 t = tcg_temp_new_i32();
63
+ fn_s(t, d, n, g, desc);
64
do_pred_flags(t);
65
+ tcg_temp_free_i32(t);
66
} else {
67
- fn(d, n, g, t);
68
+ fn(d, n, g, desc);
69
}
70
tcg_temp_free_ptr(d);
71
tcg_temp_free_ptr(n);
72
tcg_temp_free_ptr(g);
73
- tcg_temp_free_i32(t);
74
return true;
75
}
76
37
--
77
--
38
2.17.0
78
2.25.1
39
40
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20220426163043.100432-48-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
target/arm/translate-sve.c | 54 ++++++++++----------------------------
9
1 file changed, 14 insertions(+), 40 deletions(-)
10
11
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/target/arm/translate-sve.c
14
+++ b/target/arm/translate-sve.c
15
@@ -XXX,XX +XXX,XX @@ static bool do_vpz_ool(DisasContext *s, arg_rpr_esz *a,
16
return true;
17
}
18
19
- desc = tcg_const_i32(simd_desc(vsz, vsz, 0));
20
+ desc = tcg_constant_i32(simd_desc(vsz, vsz, 0));
21
temp = tcg_temp_new_i64();
22
t_zn = tcg_temp_new_ptr();
23
t_pg = tcg_temp_new_ptr();
24
@@ -XXX,XX +XXX,XX @@ static bool do_vpz_ool(DisasContext *s, arg_rpr_esz *a,
25
fn(temp, t_zn, t_pg, desc);
26
tcg_temp_free_ptr(t_zn);
27
tcg_temp_free_ptr(t_pg);
28
- tcg_temp_free_i32(desc);
29
30
write_fp_dreg(s, a->rd, temp);
31
tcg_temp_free_i64(temp);
32
@@ -XXX,XX +XXX,XX @@ static void do_index(DisasContext *s, int esz, int rd,
33
TCGv_i64 start, TCGv_i64 incr)
34
{
35
unsigned vsz = vec_full_reg_size(s);
36
- TCGv_i32 desc = tcg_const_i32(simd_desc(vsz, vsz, 0));
37
+ TCGv_i32 desc = tcg_constant_i32(simd_desc(vsz, vsz, 0));
38
TCGv_ptr t_zd = tcg_temp_new_ptr();
39
40
tcg_gen_addi_ptr(t_zd, cpu_env, vec_full_reg_offset(s, rd));
41
@@ -XXX,XX +XXX,XX @@ static void do_index(DisasContext *s, int esz, int rd,
42
tcg_temp_free_i32(i32);
43
}
44
tcg_temp_free_ptr(t_zd);
45
- tcg_temp_free_i32(desc);
46
}
47
48
static bool trans_INDEX_ii(DisasContext *s, arg_INDEX_ii *a)
49
@@ -XXX,XX +XXX,XX @@ static void do_sat_addsub_vec(DisasContext *s, int esz, int rd, int rn,
50
nptr = tcg_temp_new_ptr();
51
tcg_gen_addi_ptr(dptr, cpu_env, vec_full_reg_offset(s, rd));
52
tcg_gen_addi_ptr(nptr, cpu_env, vec_full_reg_offset(s, rn));
53
- desc = tcg_const_i32(simd_desc(vsz, vsz, 0));
54
+ desc = tcg_constant_i32(simd_desc(vsz, vsz, 0));
55
56
switch (esz) {
57
case MO_8:
58
@@ -XXX,XX +XXX,XX @@ static void do_sat_addsub_vec(DisasContext *s, int esz, int rd, int rn,
59
60
tcg_temp_free_ptr(dptr);
61
tcg_temp_free_ptr(nptr);
62
- tcg_temp_free_i32(desc);
63
}
64
65
static bool trans_CNT_r(DisasContext *s, arg_CNT_r *a)
66
@@ -XXX,XX +XXX,XX @@ static void do_cpy_m(DisasContext *s, int esz, int rd, int rn, int pg,
67
gen_helper_sve_cpy_m_s, gen_helper_sve_cpy_m_d,
68
};
69
unsigned vsz = vec_full_reg_size(s);
70
- TCGv_i32 desc = tcg_const_i32(simd_desc(vsz, vsz, 0));
71
+ TCGv_i32 desc = tcg_constant_i32(simd_desc(vsz, vsz, 0));
72
TCGv_ptr t_zd = tcg_temp_new_ptr();
73
TCGv_ptr t_zn = tcg_temp_new_ptr();
74
TCGv_ptr t_pg = tcg_temp_new_ptr();
75
@@ -XXX,XX +XXX,XX @@ static void do_cpy_m(DisasContext *s, int esz, int rd, int rn, int pg,
76
tcg_temp_free_ptr(t_zd);
77
tcg_temp_free_ptr(t_zn);
78
tcg_temp_free_ptr(t_pg);
79
- tcg_temp_free_i32(desc);
80
}
81
82
static bool trans_FCPY(DisasContext *s, arg_FCPY *a)
83
@@ -XXX,XX +XXX,XX @@ static void do_insr_i64(DisasContext *s, arg_rrr_esz *a, TCGv_i64 val)
84
gen_helper_sve_insr_s, gen_helper_sve_insr_d,
85
};
86
unsigned vsz = vec_full_reg_size(s);
87
- TCGv_i32 desc = tcg_const_i32(simd_desc(vsz, vsz, 0));
88
+ TCGv_i32 desc = tcg_constant_i32(simd_desc(vsz, vsz, 0));
89
TCGv_ptr t_zd = tcg_temp_new_ptr();
90
TCGv_ptr t_zn = tcg_temp_new_ptr();
91
92
@@ -XXX,XX +XXX,XX @@ static void do_insr_i64(DisasContext *s, arg_rrr_esz *a, TCGv_i64 val)
93
94
tcg_temp_free_ptr(t_zd);
95
tcg_temp_free_ptr(t_zn);
96
- tcg_temp_free_i32(desc);
97
}
98
99
static bool trans_INSR_f(DisasContext *s, arg_rrr_esz *a)
100
@@ -XXX,XX +XXX,XX @@ static bool do_perm_pred3(DisasContext *s, arg_rrr_esz *a, bool high_odd,
101
TCGv_ptr t_d = tcg_temp_new_ptr();
102
TCGv_ptr t_n = tcg_temp_new_ptr();
103
TCGv_ptr t_m = tcg_temp_new_ptr();
104
- TCGv_i32 t_desc;
105
uint32_t desc = 0;
106
107
desc = FIELD_DP32(desc, PREDDESC, OPRSZ, vsz);
108
@@ -XXX,XX +XXX,XX @@ static bool do_perm_pred3(DisasContext *s, arg_rrr_esz *a, bool high_odd,
109
tcg_gen_addi_ptr(t_d, cpu_env, pred_full_reg_offset(s, a->rd));
110
tcg_gen_addi_ptr(t_n, cpu_env, pred_full_reg_offset(s, a->rn));
111
tcg_gen_addi_ptr(t_m, cpu_env, pred_full_reg_offset(s, a->rm));
112
- t_desc = tcg_const_i32(desc);
113
114
- fn(t_d, t_n, t_m, t_desc);
115
+ fn(t_d, t_n, t_m, tcg_constant_i32(desc));
116
117
tcg_temp_free_ptr(t_d);
118
tcg_temp_free_ptr(t_n);
119
tcg_temp_free_ptr(t_m);
120
- tcg_temp_free_i32(t_desc);
121
return true;
122
}
123
124
@@ -XXX,XX +XXX,XX @@ static bool do_perm_pred2(DisasContext *s, arg_rr_esz *a, bool high_odd,
125
unsigned vsz = pred_full_reg_size(s);
126
TCGv_ptr t_d = tcg_temp_new_ptr();
127
TCGv_ptr t_n = tcg_temp_new_ptr();
128
- TCGv_i32 t_desc;
129
uint32_t desc = 0;
130
131
tcg_gen_addi_ptr(t_d, cpu_env, pred_full_reg_offset(s, a->rd));
132
@@ -XXX,XX +XXX,XX @@ static bool do_perm_pred2(DisasContext *s, arg_rr_esz *a, bool high_odd,
133
desc = FIELD_DP32(desc, PREDDESC, OPRSZ, vsz);
134
desc = FIELD_DP32(desc, PREDDESC, ESZ, a->esz);
135
desc = FIELD_DP32(desc, PREDDESC, DATA, high_odd);
136
- t_desc = tcg_const_i32(desc);
137
138
- fn(t_d, t_n, t_desc);
139
+ fn(t_d, t_n, tcg_constant_i32(desc));
140
141
- tcg_temp_free_i32(t_desc);
142
tcg_temp_free_ptr(t_d);
143
tcg_temp_free_ptr(t_n);
144
return true;
145
@@ -XXX,XX +XXX,XX @@ static void find_last_active(DisasContext *s, TCGv_i32 ret, int esz, int pg)
146
* round up, as we do elsewhere, because we need the exact size.
147
*/
148
TCGv_ptr t_p = tcg_temp_new_ptr();
149
- TCGv_i32 t_desc;
150
unsigned desc = 0;
151
152
desc = FIELD_DP32(desc, PREDDESC, OPRSZ, pred_full_reg_size(s));
153
desc = FIELD_DP32(desc, PREDDESC, ESZ, esz);
154
155
tcg_gen_addi_ptr(t_p, cpu_env, pred_full_reg_offset(s, pg));
156
- t_desc = tcg_const_i32(desc);
157
158
- gen_helper_sve_last_active_element(ret, t_p, t_desc);
159
+ gen_helper_sve_last_active_element(ret, t_p, tcg_constant_i32(desc));
160
161
- tcg_temp_free_i32(t_desc);
162
tcg_temp_free_ptr(t_p);
163
}
164
165
@@ -XXX,XX +XXX,XX @@ static void do_cntp(DisasContext *s, TCGv_i64 val, int esz, int pn, int pg)
166
TCGv_ptr t_pn = tcg_temp_new_ptr();
167
TCGv_ptr t_pg = tcg_temp_new_ptr();
168
unsigned desc = 0;
169
- TCGv_i32 t_desc;
170
171
desc = FIELD_DP32(desc, PREDDESC, OPRSZ, psz);
172
desc = FIELD_DP32(desc, PREDDESC, ESZ, esz);
173
174
tcg_gen_addi_ptr(t_pn, cpu_env, pred_full_reg_offset(s, pn));
175
tcg_gen_addi_ptr(t_pg, cpu_env, pred_full_reg_offset(s, pg));
176
- t_desc = tcg_const_i32(desc);
177
178
- gen_helper_sve_cntp(val, t_pn, t_pg, t_desc);
179
+ gen_helper_sve_cntp(val, t_pn, t_pg, tcg_constant_i32(desc));
180
tcg_temp_free_ptr(t_pn);
181
tcg_temp_free_ptr(t_pg);
182
- tcg_temp_free_i32(t_desc);
183
}
184
}
185
186
@@ -XXX,XX +XXX,XX @@ static void do_reduce(DisasContext *s, arg_rpr_esz *a,
187
{
188
unsigned vsz = vec_full_reg_size(s);
189
unsigned p2vsz = pow2ceil(vsz);
190
- TCGv_i32 t_desc = tcg_const_i32(simd_desc(vsz, vsz, p2vsz));
191
+ TCGv_i32 t_desc = tcg_constant_i32(simd_desc(vsz, vsz, p2vsz));
192
TCGv_ptr t_zn, t_pg, status;
193
TCGv_i64 temp;
194
195
@@ -XXX,XX +XXX,XX @@ static void do_reduce(DisasContext *s, arg_rpr_esz *a,
196
tcg_temp_free_ptr(t_zn);
197
tcg_temp_free_ptr(t_pg);
198
tcg_temp_free_ptr(status);
199
- tcg_temp_free_i32(t_desc);
200
201
write_fp_dreg(s, a->rd, temp);
202
tcg_temp_free_i64(temp);
203
@@ -XXX,XX +XXX,XX @@ static bool trans_FADDA(DisasContext *s, arg_rprr_esz *a)
204
tcg_gen_addi_ptr(t_rm, cpu_env, vec_full_reg_offset(s, a->rm));
205
tcg_gen_addi_ptr(t_pg, cpu_env, pred_full_reg_offset(s, a->pg));
206
t_fpst = fpstatus_ptr(a->esz == MO_16 ? FPST_FPCR_F16 : FPST_FPCR);
207
- t_desc = tcg_const_i32(simd_desc(vsz, vsz, 0));
208
+ t_desc = tcg_constant_i32(simd_desc(vsz, vsz, 0));
209
210
fns[a->esz - 1](t_val, t_val, t_rm, t_pg, t_fpst, t_desc);
211
212
- tcg_temp_free_i32(t_desc);
213
tcg_temp_free_ptr(t_fpst);
214
tcg_temp_free_ptr(t_pg);
215
tcg_temp_free_ptr(t_rm);
216
@@ -XXX,XX +XXX,XX @@ static void do_fp_scalar(DisasContext *s, int zd, int zn, int pg, bool is_fp16,
217
tcg_gen_addi_ptr(t_pg, cpu_env, pred_full_reg_offset(s, pg));
218
219
status = fpstatus_ptr(is_fp16 ? FPST_FPCR_F16 : FPST_FPCR);
220
- desc = tcg_const_i32(simd_desc(vsz, vsz, 0));
221
+ desc = tcg_constant_i32(simd_desc(vsz, vsz, 0));
222
fn(t_zd, t_zn, t_pg, scalar, status, desc);
223
224
- tcg_temp_free_i32(desc);
225
tcg_temp_free_ptr(status);
226
tcg_temp_free_ptr(t_pg);
227
tcg_temp_free_ptr(t_zn);
228
@@ -XXX,XX +XXX,XX @@ static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr,
229
{
230
unsigned vsz = vec_full_reg_size(s);
231
TCGv_ptr t_pg;
232
- TCGv_i32 t_desc;
233
int desc = 0;
234
235
/*
236
@@ -XXX,XX +XXX,XX @@ static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr,
237
}
238
239
desc = simd_desc(vsz, vsz, zt | desc);
240
- t_desc = tcg_const_i32(desc);
241
t_pg = tcg_temp_new_ptr();
242
243
tcg_gen_addi_ptr(t_pg, cpu_env, pred_full_reg_offset(s, pg));
244
- fn(cpu_env, t_pg, addr, t_desc);
245
+ fn(cpu_env, t_pg, addr, tcg_constant_i32(desc));
246
247
tcg_temp_free_ptr(t_pg);
248
- tcg_temp_free_i32(t_desc);
249
}
250
251
/* Indexed by [mte][be][dtype][nreg] */
252
@@ -XXX,XX +XXX,XX @@ static void do_mem_zpz(DisasContext *s, int zt, int pg, int zm,
253
TCGv_ptr t_zm = tcg_temp_new_ptr();
254
TCGv_ptr t_pg = tcg_temp_new_ptr();
255
TCGv_ptr t_zt = tcg_temp_new_ptr();
256
- TCGv_i32 t_desc;
257
int desc = 0;
258
259
if (s->mte_active[0]) {
260
@@ -XXX,XX +XXX,XX @@ static void do_mem_zpz(DisasContext *s, int zt, int pg, int zm,
261
desc <<= SVE_MTEDESC_SHIFT;
262
}
263
desc = simd_desc(vsz, vsz, desc | scale);
264
- t_desc = tcg_const_i32(desc);
265
266
tcg_gen_addi_ptr(t_pg, cpu_env, pred_full_reg_offset(s, pg));
267
tcg_gen_addi_ptr(t_zm, cpu_env, vec_full_reg_offset(s, zm));
268
tcg_gen_addi_ptr(t_zt, cpu_env, vec_full_reg_offset(s, zt));
269
- fn(cpu_env, t_zt, t_pg, t_zm, scalar, t_desc);
270
+ fn(cpu_env, t_zt, t_pg, t_zm, scalar, tcg_constant_i32(desc));
271
272
tcg_temp_free_ptr(t_zt);
273
tcg_temp_free_ptr(t_zm);
274
tcg_temp_free_ptr(t_pg);
275
- tcg_temp_free_i32(t_desc);
276
}
277
278
/* Indexed by [mte][be][ff][xs][u][msz]. */
279
--
280
2.25.1
diff view generated by jsdifflib
1
In commit d81ce0ef2c4f105 we added an extra float_status field
1
From: Damien Hedde <damien.hedde@greensocs.com>
2
fp_status_fp16 for Arm, but forgot to initialize it correctly
3
by setting it to float_tininess_before_rounding. This currently
4
will only cause problems for the new V8_FP16 feature, since the
5
float-to-float conversion code doesn't use it yet. The effect
6
would be that we failed to set the Underflow IEEE exception flag
7
in all the cases where we should.
8
2
9
Add the missing initialization.
3
As of now, cryptographic instructions ISAR fields are never cleared so
4
we can end up with a cpu with cryptographic instructions but no
5
floating-point/neon instructions which is not a possible configuration
6
according to Arm specifications.
10
7
11
Fixes: d81ce0ef2c4f105
8
In QEMU, we have 3 kinds of cpus regarding cryptographic instructions:
12
Cc: qemu-stable@nongnu.org
9
+ no support
10
+ cortex-a57/a72: cryptographic extension is optional,
11
floating-point/neon is not.
12
+ cortex-a53: crytographic extension is optional as well as
13
floating-point/neon. But cryptographic requires
14
floating-point/neon support.
15
16
Therefore we can safely clear the ISAR fields when neon is disabled.
17
18
Note that other Arm cpus seem to follow this. For example cortex-a55 is
19
like cortex-a53 and cortex-a76/cortex-a710 are like cortex-a57/a72.
20
21
Signed-off-by: Damien Hedde <damien.hedde@greensocs.com>
13
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
22
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
14
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
23
Message-id: 20220427090117.6954-1-damien.hedde@greensocs.com
24
[PMM: fixed commit message typos]
15
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
25
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
16
Message-id: 20180512004311.9299-16-richard.henderson@linaro.org
17
---
26
---
18
target/arm/cpu.c | 2 ++
27
target/arm/cpu.c | 9 +++++++++
19
1 file changed, 2 insertions(+)
28
1 file changed, 9 insertions(+)
20
29
21
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
30
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
22
index XXXXXXX..XXXXXXX 100644
31
index XXXXXXX..XXXXXXX 100644
23
--- a/target/arm/cpu.c
32
--- a/target/arm/cpu.c
24
+++ b/target/arm/cpu.c
33
+++ b/target/arm/cpu.c
25
@@ -XXX,XX +XXX,XX @@ static void arm_cpu_reset(CPUState *s)
34
@@ -XXX,XX +XXX,XX @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
26
&env->vfp.fp_status);
35
unset_feature(env, ARM_FEATURE_NEON);
27
set_float_detect_tininess(float_tininess_before_rounding,
36
28
&env->vfp.standard_fp_status);
37
t = cpu->isar.id_aa64isar0;
29
+ set_float_detect_tininess(float_tininess_before_rounding,
38
+ t = FIELD_DP64(t, ID_AA64ISAR0, AES, 0);
30
+ &env->vfp.fp_status_f16);
39
+ t = FIELD_DP64(t, ID_AA64ISAR0, SHA1, 0);
31
#ifndef CONFIG_USER_ONLY
40
+ t = FIELD_DP64(t, ID_AA64ISAR0, SHA2, 0);
32
if (kvm_enabled()) {
41
+ t = FIELD_DP64(t, ID_AA64ISAR0, SHA3, 0);
33
kvm_arm_reset_vcpu(cpu);
42
+ t = FIELD_DP64(t, ID_AA64ISAR0, SM3, 0);
43
+ t = FIELD_DP64(t, ID_AA64ISAR0, SM4, 0);
44
t = FIELD_DP64(t, ID_AA64ISAR0, DP, 0);
45
cpu->isar.id_aa64isar0 = t;
46
47
@@ -XXX,XX +XXX,XX @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
48
cpu->isar.id_aa64pfr0 = t;
49
50
u = cpu->isar.id_isar5;
51
+ u = FIELD_DP32(u, ID_ISAR5, AES, 0);
52
+ u = FIELD_DP32(u, ID_ISAR5, SHA1, 0);
53
+ u = FIELD_DP32(u, ID_ISAR5, SHA2, 0);
54
u = FIELD_DP32(u, ID_ISAR5, RDM, 0);
55
u = FIELD_DP32(u, ID_ISAR5, VCMA, 0);
56
cpu->isar.id_isar5 = u;
34
--
57
--
35
2.17.0
58
2.25.1
36
37
diff view generated by jsdifflib
1
From: Richard Henderson <richard.henderson@linaro.org>
1
From: Richard Henderson <richard.henderson@linaro.org>
2
2
3
Cc: qemu-stable@nongnu.org
3
While defining these names, use the correct field width of 5 not 4 for
4
DBGWCR.MASK. This typo prevented setting a watchpoint larger than 32k.
5
6
Reported-by: Chris Howard <cvz185@web.de>
7
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
4
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
8
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
5
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
9
Message-id: 20220427051926.295223-1-richard.henderson@linaro.org
6
Tested-by: Alex Bennée <alex.bennee@linaro.org>
7
Message-id: 20180512003217.9105-4-richard.henderson@linaro.org
8
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9
---
11
---
10
target/arm/helper.h | 6 +++
12
target/arm/internals.h | 12 ++++++++++++
11
target/arm/helper.c | 38 ++++++++++++++-
13
target/arm/debug_helper.c | 10 +++++-----
12
target/arm/translate-a64.c | 96 +++++++++++++++++++++++++++++++-------
14
target/arm/helper.c | 8 ++++----
13
3 files changed, 122 insertions(+), 18 deletions(-)
15
target/arm/kvm64.c | 14 +++++++-------
16
4 files changed, 28 insertions(+), 16 deletions(-)
14
17
15
diff --git a/target/arm/helper.h b/target/arm/helper.h
18
diff --git a/target/arm/internals.h b/target/arm/internals.h
16
index XXXXXXX..XXXXXXX 100644
19
index XXXXXXX..XXXXXXX 100644
17
--- a/target/arm/helper.h
20
--- a/target/arm/internals.h
18
+++ b/target/arm/helper.h
21
+++ b/target/arm/internals.h
19
@@ -XXX,XX +XXX,XX @@ DEF_HELPER_3(vfp_touhd_round_to_zero, i64, f64, i32, ptr)
22
@@ -XXX,XX +XXX,XX @@ FIELD(V7M_EXCRET, RES1, 7, 25) /* including the must-be-1 prefix */
20
DEF_HELPER_3(vfp_tould_round_to_zero, i64, f64, i32, ptr)
23
*/
21
DEF_HELPER_3(vfp_touhh, i32, f16, i32, ptr)
24
#define FNC_RETURN_MIN_MAGIC 0xfefffffe
22
DEF_HELPER_3(vfp_toshh, i32, f16, i32, ptr)
25
23
+DEF_HELPER_3(vfp_toulh, i32, f16, i32, ptr)
26
+/* Bit definitions for DBGWCRn and DBGWCRn_EL1 */
24
+DEF_HELPER_3(vfp_toslh, i32, f16, i32, ptr)
27
+FIELD(DBGWCR, E, 0, 1)
25
+DEF_HELPER_3(vfp_touqh, i64, f16, i32, ptr)
28
+FIELD(DBGWCR, PAC, 1, 2)
26
+DEF_HELPER_3(vfp_tosqh, i64, f16, i32, ptr)
29
+FIELD(DBGWCR, LSC, 3, 2)
27
DEF_HELPER_3(vfp_toshs, i32, f32, i32, ptr)
30
+FIELD(DBGWCR, BAS, 5, 8)
28
DEF_HELPER_3(vfp_tosls, i32, f32, i32, ptr)
31
+FIELD(DBGWCR, HMC, 13, 1)
29
DEF_HELPER_3(vfp_tosqs, i64, f32, i32, ptr)
32
+FIELD(DBGWCR, SSC, 14, 2)
30
@@ -XXX,XX +XXX,XX @@ DEF_HELPER_3(vfp_ultod, f64, i64, i32, ptr)
33
+FIELD(DBGWCR, LBN, 16, 4)
31
DEF_HELPER_3(vfp_uqtod, f64, i64, i32, ptr)
34
+FIELD(DBGWCR, WT, 20, 1)
32
DEF_HELPER_3(vfp_sltoh, f16, i32, i32, ptr)
35
+FIELD(DBGWCR, MASK, 24, 5)
33
DEF_HELPER_3(vfp_ultoh, f16, i32, i32, ptr)
36
+FIELD(DBGWCR, SSCE, 29, 1)
34
+DEF_HELPER_3(vfp_sqtoh, f16, i64, i32, ptr)
37
+
35
+DEF_HELPER_3(vfp_uqtoh, f16, i64, i32, ptr)
38
/* We use a few fake FSR values for internal purposes in M profile.
36
39
* M profile cores don't have A/R format FSRs, but currently our
37
DEF_HELPER_FLAGS_2(set_rmode, TCG_CALL_NO_RWG, i32, i32, ptr)
40
* get_phys_addr() code assumes A/R profile and reports failures via
38
DEF_HELPER_FLAGS_2(set_neon_rmode, TCG_CALL_NO_RWG, i32, i32, env)
41
diff --git a/target/arm/debug_helper.c b/target/arm/debug_helper.c
42
index XXXXXXX..XXXXXXX 100644
43
--- a/target/arm/debug_helper.c
44
+++ b/target/arm/debug_helper.c
45
@@ -XXX,XX +XXX,XX @@ static bool bp_wp_matches(ARMCPU *cpu, int n, bool is_wp)
46
* Non-Secure to simplify the code slightly compared to the full
47
* table in the ARM ARM.
48
*/
49
- pac = extract64(cr, 1, 2);
50
- hmc = extract64(cr, 13, 1);
51
- ssc = extract64(cr, 14, 2);
52
+ pac = FIELD_EX64(cr, DBGWCR, PAC);
53
+ hmc = FIELD_EX64(cr, DBGWCR, HMC);
54
+ ssc = FIELD_EX64(cr, DBGWCR, SSC);
55
56
switch (ssc) {
57
case 0:
58
@@ -XXX,XX +XXX,XX @@ static bool bp_wp_matches(ARMCPU *cpu, int n, bool is_wp)
59
g_assert_not_reached();
60
}
61
62
- wt = extract64(cr, 20, 1);
63
- lbn = extract64(cr, 16, 4);
64
+ wt = FIELD_EX64(cr, DBGWCR, WT);
65
+ lbn = FIELD_EX64(cr, DBGWCR, LBN);
66
67
if (wt && !linked_bp_matches(cpu, lbn)) {
68
return false;
39
diff --git a/target/arm/helper.c b/target/arm/helper.c
69
diff --git a/target/arm/helper.c b/target/arm/helper.c
40
index XXXXXXX..XXXXXXX 100644
70
index XXXXXXX..XXXXXXX 100644
41
--- a/target/arm/helper.c
71
--- a/target/arm/helper.c
42
+++ b/target/arm/helper.c
72
+++ b/target/arm/helper.c
43
@@ -XXX,XX +XXX,XX @@ VFP_CONV_FIX_A64(uq, s, 32, 64, uint64)
73
@@ -XXX,XX +XXX,XX @@ void hw_watchpoint_update(ARMCPU *cpu, int n)
44
#undef VFP_CONV_FIX_A64
74
env->cpu_watchpoint[n] = NULL;
45
75
}
46
/* Conversion to/from f16 can overflow to infinity before/after scaling.
76
47
- * Therefore we convert to f64 (which does not round), scale,
77
- if (!extract64(wcr, 0, 1)) {
48
- * and then convert f64 to f16 (which may round).
78
+ if (!FIELD_EX64(wcr, DBGWCR, E)) {
49
+ * Therefore we convert to f64, scale, and then convert f64 to f16; or
79
/* E bit clear : watchpoint disabled */
50
+ * vice versa for conversion to integer.
80
return;
51
+ *
81
}
52
+ * For 16- and 32-bit integers, the conversion to f64 never rounds.
82
53
+ * For 64-bit integers, any integer that would cause rounding will also
83
- switch (extract64(wcr, 3, 2)) {
54
+ * overflow to f16 infinity, so there is no double rounding problem.
84
+ switch (FIELD_EX64(wcr, DBGWCR, LSC)) {
55
*/
85
case 0:
56
86
/* LSC 00 is reserved and must behave as if the wp is disabled */
57
static float16 do_postscale_fp16(float64 f, int shift, float_status *fpst)
87
return;
58
@@ -XXX,XX +XXX,XX @@ float16 HELPER(vfp_ultoh)(uint32_t x, uint32_t shift, void *fpst)
88
@@ -XXX,XX +XXX,XX @@ void hw_watchpoint_update(ARMCPU *cpu, int n)
59
return do_postscale_fp16(uint32_to_float64(x, fpst), shift, fpst);
89
* CONSTRAINED UNPREDICTABLE; we opt to ignore BAS in this case,
60
}
90
* thus generating a watchpoint for every byte in the masked region.
61
91
*/
62
+float16 HELPER(vfp_sqtoh)(uint64_t x, uint32_t shift, void *fpst)
92
- mask = extract64(wcr, 24, 4);
63
+{
93
+ mask = FIELD_EX64(wcr, DBGWCR, MASK);
64
+ return do_postscale_fp16(int64_to_float64(x, fpst), shift, fpst);
94
if (mask == 1 || mask == 2) {
65
+}
95
/* Reserved values of MASK; we must act as if the mask value was
66
+
96
* some non-reserved value, or as if the watchpoint were disabled.
67
+float16 HELPER(vfp_uqtoh)(uint64_t x, uint32_t shift, void *fpst)
97
@@ -XXX,XX +XXX,XX @@ void hw_watchpoint_update(ARMCPU *cpu, int n)
68
+{
98
wvr &= ~(len - 1);
69
+ return do_postscale_fp16(uint64_to_float64(x, fpst), shift, fpst);
99
} else {
70
+}
100
/* Watchpoint covers bytes defined by the byte address select bits */
71
+
101
- int bas = extract64(wcr, 5, 8);
72
static float64 do_prescale_fp16(float16 f, int shift, float_status *fpst)
102
+ int bas = FIELD_EX64(wcr, DBGWCR, BAS);
103
int basstart;
104
105
if (extract64(wvr, 2, 1)) {
106
diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
107
index XXXXXXX..XXXXXXX 100644
108
--- a/target/arm/kvm64.c
109
+++ b/target/arm/kvm64.c
110
@@ -XXX,XX +XXX,XX @@ static int insert_hw_watchpoint(target_ulong addr,
111
target_ulong len, int type)
73
{
112
{
74
if (unlikely(float16_is_any_nan(f))) {
113
HWWatchpoint wp = {
75
@@ -XXX,XX +XXX,XX @@ uint32_t HELPER(vfp_touhh)(float16 x, uint32_t shift, void *fpst)
114
- .wcr = 1, /* E=1, enable */
76
return float64_to_uint16(do_prescale_fp16(x, shift, fpst), fpst);
115
+ .wcr = R_DBGWCR_E_MASK, /* E=1, enable */
77
}
116
.wvr = addr & (~0x7ULL),
78
117
.details = { .vaddr = addr, .len = len }
79
+uint32_t HELPER(vfp_toslh)(float16 x, uint32_t shift, void *fpst)
118
};
80
+{
119
@@ -XXX,XX +XXX,XX @@ static int insert_hw_watchpoint(target_ulong addr,
81
+ return float64_to_int32(do_prescale_fp16(x, shift, fpst), fpst);
120
* HMC=0 SSC=0 PAC=3 will hit EL0 or EL1, any security state,
82
+}
121
* valid whether EL3 is implemented or not
83
+
122
*/
84
+uint32_t HELPER(vfp_toulh)(float16 x, uint32_t shift, void *fpst)
123
- wp.wcr = deposit32(wp.wcr, 1, 2, 3);
85
+{
124
+ wp.wcr = FIELD_DP64(wp.wcr, DBGWCR, PAC, 3);
86
+ return float64_to_uint32(do_prescale_fp16(x, shift, fpst), fpst);
125
87
+}
126
switch (type) {
88
+
127
case GDB_WATCHPOINT_READ:
89
+uint64_t HELPER(vfp_tosqh)(float16 x, uint32_t shift, void *fpst)
128
- wp.wcr = deposit32(wp.wcr, 3, 2, 1);
90
+{
129
+ wp.wcr = FIELD_DP64(wp.wcr, DBGWCR, LSC, 1);
91
+ return float64_to_int64(do_prescale_fp16(x, shift, fpst), fpst);
130
wp.details.flags = BP_MEM_READ;
92
+}
131
break;
93
+
132
case GDB_WATCHPOINT_WRITE:
94
+uint64_t HELPER(vfp_touqh)(float16 x, uint32_t shift, void *fpst)
133
- wp.wcr = deposit32(wp.wcr, 3, 2, 2);
95
+{
134
+ wp.wcr = FIELD_DP64(wp.wcr, DBGWCR, LSC, 2);
96
+ return float64_to_uint64(do_prescale_fp16(x, shift, fpst), fpst);
135
wp.details.flags = BP_MEM_WRITE;
97
+}
136
break;
98
+
137
case GDB_WATCHPOINT_ACCESS:
99
/* Set the current fp rounding mode and return the old one.
138
- wp.wcr = deposit32(wp.wcr, 3, 2, 3);
100
* The argument is a softfloat float_round_ value.
139
+ wp.wcr = FIELD_DP64(wp.wcr, DBGWCR, LSC, 3);
101
*/
140
wp.details.flags = BP_MEM_ACCESS;
102
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
141
break;
103
index XXXXXXX..XXXXXXX 100644
142
default:
104
--- a/target/arm/translate-a64.c
143
@@ -XXX,XX +XXX,XX @@ static int insert_hw_watchpoint(target_ulong addr,
105
+++ b/target/arm/translate-a64.c
144
int bits = ctz64(len);
106
@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
145
107
bool itof, int rmode, int scale, int sf, int type)
146
wp.wvr &= ~((1 << bits) - 1);
108
{
147
- wp.wcr = deposit32(wp.wcr, 24, 4, bits);
109
bool is_signed = !(opcode & 1);
148
- wp.wcr = deposit32(wp.wcr, 5, 8, 0xff);
110
- bool is_double = type;
149
+ wp.wcr = FIELD_DP64(wp.wcr, DBGWCR, MASK, bits);
111
TCGv_ptr tcg_fpstatus;
150
+ wp.wcr = FIELD_DP64(wp.wcr, DBGWCR, BAS, 0xff);
112
- TCGv_i32 tcg_shift;
151
} else {
113
+ TCGv_i32 tcg_shift, tcg_single;
152
return -ENOBUFS;
114
+ TCGv_i64 tcg_double;
115
116
- tcg_fpstatus = get_fpstatus_ptr(false);
117
+ tcg_fpstatus = get_fpstatus_ptr(type == 3);
118
119
tcg_shift = tcg_const_i32(64 - scale);
120
121
@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
122
tcg_int = tcg_extend;
123
}
124
125
- if (is_double) {
126
- TCGv_i64 tcg_double = tcg_temp_new_i64();
127
+ switch (type) {
128
+ case 1: /* float64 */
129
+ tcg_double = tcg_temp_new_i64();
130
if (is_signed) {
131
gen_helper_vfp_sqtod(tcg_double, tcg_int,
132
tcg_shift, tcg_fpstatus);
133
@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
134
}
135
write_fp_dreg(s, rd, tcg_double);
136
tcg_temp_free_i64(tcg_double);
137
- } else {
138
- TCGv_i32 tcg_single = tcg_temp_new_i32();
139
+ break;
140
+
141
+ case 0: /* float32 */
142
+ tcg_single = tcg_temp_new_i32();
143
if (is_signed) {
144
gen_helper_vfp_sqtos(tcg_single, tcg_int,
145
tcg_shift, tcg_fpstatus);
146
@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
147
}
148
write_fp_sreg(s, rd, tcg_single);
149
tcg_temp_free_i32(tcg_single);
150
+ break;
151
+
152
+ case 3: /* float16 */
153
+ tcg_single = tcg_temp_new_i32();
154
+ if (is_signed) {
155
+ gen_helper_vfp_sqtoh(tcg_single, tcg_int,
156
+ tcg_shift, tcg_fpstatus);
157
+ } else {
158
+ gen_helper_vfp_uqtoh(tcg_single, tcg_int,
159
+ tcg_shift, tcg_fpstatus);
160
+ }
161
+ write_fp_sreg(s, rd, tcg_single);
162
+ tcg_temp_free_i32(tcg_single);
163
+ break;
164
+
165
+ default:
166
+ g_assert_not_reached();
167
}
168
} else {
169
TCGv_i64 tcg_int = cpu_reg(s, rd);
170
@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
171
172
gen_helper_set_rmode(tcg_rmode, tcg_rmode, tcg_fpstatus);
173
174
- if (is_double) {
175
- TCGv_i64 tcg_double = read_fp_dreg(s, rn);
176
+ switch (type) {
177
+ case 1: /* float64 */
178
+ tcg_double = read_fp_dreg(s, rn);
179
if (is_signed) {
180
if (!sf) {
181
gen_helper_vfp_tosld(tcg_int, tcg_double,
182
@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
183
tcg_shift, tcg_fpstatus);
184
}
185
}
186
+ if (!sf) {
187
+ tcg_gen_ext32u_i64(tcg_int, tcg_int);
188
+ }
189
tcg_temp_free_i64(tcg_double);
190
- } else {
191
- TCGv_i32 tcg_single = read_fp_sreg(s, rn);
192
+ break;
193
+
194
+ case 0: /* float32 */
195
+ tcg_single = read_fp_sreg(s, rn);
196
if (sf) {
197
if (is_signed) {
198
gen_helper_vfp_tosqs(tcg_int, tcg_single,
199
@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
200
tcg_temp_free_i32(tcg_dest);
201
}
202
tcg_temp_free_i32(tcg_single);
203
+ break;
204
+
205
+ case 3: /* float16 */
206
+ tcg_single = read_fp_sreg(s, rn);
207
+ if (sf) {
208
+ if (is_signed) {
209
+ gen_helper_vfp_tosqh(tcg_int, tcg_single,
210
+ tcg_shift, tcg_fpstatus);
211
+ } else {
212
+ gen_helper_vfp_touqh(tcg_int, tcg_single,
213
+ tcg_shift, tcg_fpstatus);
214
+ }
215
+ } else {
216
+ TCGv_i32 tcg_dest = tcg_temp_new_i32();
217
+ if (is_signed) {
218
+ gen_helper_vfp_toslh(tcg_dest, tcg_single,
219
+ tcg_shift, tcg_fpstatus);
220
+ } else {
221
+ gen_helper_vfp_toulh(tcg_dest, tcg_single,
222
+ tcg_shift, tcg_fpstatus);
223
+ }
224
+ tcg_gen_extu_i32_i64(tcg_int, tcg_dest);
225
+ tcg_temp_free_i32(tcg_dest);
226
+ }
227
+ tcg_temp_free_i32(tcg_single);
228
+ break;
229
+
230
+ default:
231
+ g_assert_not_reached();
232
}
233
234
gen_helper_set_rmode(tcg_rmode, tcg_rmode, tcg_fpstatus);
235
tcg_temp_free_i32(tcg_rmode);
236
-
237
- if (!sf) {
238
- tcg_gen_ext32u_i64(tcg_int, tcg_int);
239
- }
240
}
241
242
tcg_temp_free_ptr(tcg_fpstatus);
243
@@ -XXX,XX +XXX,XX @@ static void disas_fp_int_conv(DisasContext *s, uint32_t insn)
244
/* actual FP conversions */
245
bool itof = extract32(opcode, 1, 1);
246
247
- if (type > 1 || (rmode != 0 && opcode > 1)) {
248
+ if (rmode != 0 && opcode > 1) {
249
+ unallocated_encoding(s);
250
+ return;
251
+ }
252
+ switch (type) {
253
+ case 0: /* float32 */
254
+ case 1: /* float64 */
255
+ break;
256
+ case 3: /* float16 */
257
+ if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
258
+ break;
259
+ }
260
+ /* fallthru */
261
+ default:
262
unallocated_encoding(s);
263
return;
264
}
153
}
265
--
154
--
266
2.17.0
155
2.25.1
267
156
268
157
diff view generated by jsdifflib
New patch
1
From: Jean-Philippe Brucker <jean-philippe@linaro.org>
1
2
3
The Record bit in the Context Descriptor tells the SMMU to report fault
4
events to the event queue. Since we don't cache the Record bit at the
5
moment, access faults from a cached Context Descriptor are never
6
reported. Store the Record bit in the cached SMMUTransCfg.
7
8
Fixes: 9bde7f0674fe ("hw/arm/smmuv3: Implement translate callback")
9
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
10
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
11
Reviewed-by: Eric Auger <eric.auger@redhat.com>
12
Message-id: 20220427111543.124620-1-jean-philippe@linaro.org
13
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
14
---
15
hw/arm/smmuv3-internal.h | 1 -
16
include/hw/arm/smmu-common.h | 1 +
17
hw/arm/smmuv3.c | 14 +++++++-------
18
3 files changed, 8 insertions(+), 8 deletions(-)
19
20
diff --git a/hw/arm/smmuv3-internal.h b/hw/arm/smmuv3-internal.h
21
index XXXXXXX..XXXXXXX 100644
22
--- a/hw/arm/smmuv3-internal.h
23
+++ b/hw/arm/smmuv3-internal.h
24
@@ -XXX,XX +XXX,XX @@ typedef struct SMMUEventInfo {
25
SMMUEventType type;
26
uint32_t sid;
27
bool recorded;
28
- bool record_trans_faults;
29
bool inval_ste_allowed;
30
union {
31
struct {
32
diff --git a/include/hw/arm/smmu-common.h b/include/hw/arm/smmu-common.h
33
index XXXXXXX..XXXXXXX 100644
34
--- a/include/hw/arm/smmu-common.h
35
+++ b/include/hw/arm/smmu-common.h
36
@@ -XXX,XX +XXX,XX @@ typedef struct SMMUTransCfg {
37
bool disabled; /* smmu is disabled */
38
bool bypassed; /* translation is bypassed */
39
bool aborted; /* translation is aborted */
40
+ bool record_faults; /* record fault events */
41
uint64_t ttb; /* TT base address */
42
uint8_t oas; /* output address width */
43
uint8_t tbi; /* Top Byte Ignore */
44
diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
45
index XXXXXXX..XXXXXXX 100644
46
--- a/hw/arm/smmuv3.c
47
+++ b/hw/arm/smmuv3.c
48
@@ -XXX,XX +XXX,XX @@ static int decode_cd(SMMUTransCfg *cfg, CD *cd, SMMUEventInfo *event)
49
trace_smmuv3_decode_cd_tt(i, tt->tsz, tt->ttb, tt->granule_sz, tt->had);
50
}
51
52
- event->record_trans_faults = CD_R(cd);
53
+ cfg->record_faults = CD_R(cd);
54
55
return 0;
56
57
@@ -XXX,XX +XXX,XX @@ static IOMMUTLBEntry smmuv3_translate(IOMMUMemoryRegion *mr, hwaddr addr,
58
59
tt = select_tt(cfg, addr);
60
if (!tt) {
61
- if (event.record_trans_faults) {
62
+ if (cfg->record_faults) {
63
event.type = SMMU_EVT_F_TRANSLATION;
64
event.u.f_translation.addr = addr;
65
event.u.f_translation.rnw = flag & 0x1;
66
@@ -XXX,XX +XXX,XX @@ static IOMMUTLBEntry smmuv3_translate(IOMMUMemoryRegion *mr, hwaddr addr,
67
if (cached_entry) {
68
if ((flag & IOMMU_WO) && !(cached_entry->entry.perm & IOMMU_WO)) {
69
status = SMMU_TRANS_ERROR;
70
- if (event.record_trans_faults) {
71
+ if (cfg->record_faults) {
72
event.type = SMMU_EVT_F_PERMISSION;
73
event.u.f_permission.addr = addr;
74
event.u.f_permission.rnw = flag & 0x1;
75
@@ -XXX,XX +XXX,XX @@ static IOMMUTLBEntry smmuv3_translate(IOMMUMemoryRegion *mr, hwaddr addr,
76
event.u.f_walk_eabt.addr2 = ptw_info.addr;
77
break;
78
case SMMU_PTW_ERR_TRANSLATION:
79
- if (event.record_trans_faults) {
80
+ if (cfg->record_faults) {
81
event.type = SMMU_EVT_F_TRANSLATION;
82
event.u.f_translation.addr = addr;
83
event.u.f_translation.rnw = flag & 0x1;
84
}
85
break;
86
case SMMU_PTW_ERR_ADDR_SIZE:
87
- if (event.record_trans_faults) {
88
+ if (cfg->record_faults) {
89
event.type = SMMU_EVT_F_ADDR_SIZE;
90
event.u.f_addr_size.addr = addr;
91
event.u.f_addr_size.rnw = flag & 0x1;
92
}
93
break;
94
case SMMU_PTW_ERR_ACCESS:
95
- if (event.record_trans_faults) {
96
+ if (cfg->record_faults) {
97
event.type = SMMU_EVT_F_ACCESS;
98
event.u.f_access.addr = addr;
99
event.u.f_access.rnw = flag & 0x1;
100
}
101
break;
102
case SMMU_PTW_ERR_PERMISSION:
103
- if (event.record_trans_faults) {
104
+ if (cfg->record_faults) {
105
event.type = SMMU_EVT_F_PERMISSION;
106
event.u.f_permission.addr = addr;
107
event.u.f_permission.rnw = flag & 0x1;
108
--
109
2.25.1
diff view generated by jsdifflib
1
From: Alex Bennée <alex.bennee@linaro.org>
1
From: Jean-Philippe Brucker <jean-philippe@linaro.org>
2
2
3
Reported by Coverity (CID1390635). We ensure this for uint_to_float
3
Make the translation error message prettier by adding a missing space
4
later on so we might as well mirror that.
4
before the parenthesis.
5
5
6
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
6
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
7
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
7
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
8
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
8
Reviewed-by: Eric Auger <eric.auger@redhat.com>
9
Message-id: 20220427111543.124620-2-jean-philippe@linaro.org
9
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10
---
11
---
11
fpu/softfloat.c | 2 +-
12
hw/arm/smmuv3.c | 2 +-
12
1 file changed, 1 insertion(+), 1 deletion(-)
13
1 file changed, 1 insertion(+), 1 deletion(-)
13
14
14
diff --git a/fpu/softfloat.c b/fpu/softfloat.c
15
diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
15
index XXXXXXX..XXXXXXX 100644
16
index XXXXXXX..XXXXXXX 100644
16
--- a/fpu/softfloat.c
17
--- a/hw/arm/smmuv3.c
17
+++ b/fpu/softfloat.c
18
+++ b/hw/arm/smmuv3.c
18
@@ -XXX,XX +XXX,XX @@ FLOAT_TO_UINT(64, 64)
19
@@ -XXX,XX +XXX,XX @@ epilogue:
19
20
break;
20
static FloatParts int_to_float(int64_t a, float_status *status)
21
case SMMU_TRANS_ERROR:
21
{
22
qemu_log_mask(LOG_GUEST_ERROR,
22
- FloatParts r;
23
- "%s translation failed for iova=0x%"PRIx64"(%s)\n",
23
+ FloatParts r = {};
24
+ "%s translation failed for iova=0x%"PRIx64" (%s)\n",
24
if (a == 0) {
25
mr->parent_obj.name, addr, smmu_event_string(event.type));
25
r.cls = float_class_zero;
26
smmuv3_record_event(s, &event);
26
r.sign = false;
27
break;
27
--
28
--
28
2.17.0
29
2.25.1
29
30
diff view generated by jsdifflib
New patch
1
The Arm FEAT_TTL architectural feature allows the guest to provide an
2
optional hint in an AArch64 TLB invalidate operation about which
3
translation table level holds the leaf entry for the address being
4
invalidated. QEMU's TLB implementation doesn't need that hint, and
5
we correctly ignore the (previously RES0) bits in TLB invalidate
6
operation values that are now used for the TTL field. So we can
7
simply advertise support for it in our 'max' CPU.
1
8
9
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
11
Message-id: 20220426160422.2353158-2-peter.maydell@linaro.org
12
---
13
docs/system/arm/emulation.rst | 1 +
14
target/arm/cpu64.c | 1 +
15
2 files changed, 2 insertions(+)
16
17
diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst
18
index XXXXXXX..XXXXXXX 100644
19
--- a/docs/system/arm/emulation.rst
20
+++ b/docs/system/arm/emulation.rst
21
@@ -XXX,XX +XXX,XX @@ the following architecture extensions:
22
- FEAT_TLBIOS (TLB invalidate instructions in Outer Shareable domain)
23
- FEAT_TLBIRANGE (TLB invalidate range instructions)
24
- FEAT_TTCNP (Translation table Common not private translations)
25
+- FEAT_TTL (Translation Table Level)
26
- FEAT_TTST (Small translation tables)
27
- FEAT_UAO (Unprivileged Access Override control)
28
- FEAT_VHE (Virtualization Host Extensions)
29
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
30
index XXXXXXX..XXXXXXX 100644
31
--- a/target/arm/cpu64.c
32
+++ b/target/arm/cpu64.c
33
@@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj)
34
t = FIELD_DP64(t, ID_AA64MMFR2, CNP, 1); /* TTCNP */
35
t = FIELD_DP64(t, ID_AA64MMFR2, ST, 1); /* TTST */
36
t = FIELD_DP64(t, ID_AA64MMFR2, VARANGE, 1); /* FEAT_LVA */
37
+ t = FIELD_DP64(t, ID_AA64MMFR2, TTL, 1); /* FEAT_TTL */
38
cpu->isar.id_aa64mmfr2 = t;
39
40
t = cpu->isar.id_aa64zfr0;
41
--
42
2.25.1
diff view generated by jsdifflib
1
In float-to-integer conversion, if the floating point input
1
The description in the Arm ARM of the requirements of FEAT_BBM is
2
converts exactly to the largest or smallest integer that
2
admirably clear on the guarantees it provides software, but slightly
3
fits in to the result type, this is not an overflow.
3
more obscure on what that means for implementations. The description
4
In this situation we were producing the correct result value,
4
of the equivalent SMMU feature in the SMMU specification (IHI0070D.b
5
but were incorrectly setting the Invalid flag.
5
section 3.21.1) is perhaps a bit more detailed and includes some
6
For example for Arm A64, "FCVTAS w0, d0" on an input of
6
example valid implementation choices. (The SMMU version of this
7
0x41dfffffffc00000 should produce 0x7fffffff and set no flags.
7
feature is slightly tighter than the CPU version: the CPU is permitted
8
to raise TLB Conflict aborts in some situations that the SMMU may
9
not. This doesn't matter for QEMU because we don't want to do TLB
10
Conflict aborts anyway.)
8
11
9
Fix the boundary case to take the right half of the if()
12
The informal summary of FEAT_BBM is that it is about permitting an OS
10
statements.
13
to switch a range of memory between "covered by a huge page" and
14
"covered by a sequence of normal pages" without having to engage in
15
the 'break-before-make' dance that has traditionally been
16
necessary. The 'break-before-make' sequence is:
11
17
12
This fixes a regression from 2.11 introduced by the softfloat
18
* replace the old translation table entry with an invalid entry
13
refactoring.
19
* execute a DSB insn
20
* execute a broadcast TLB invalidate insn
21
* execute a DSB insn
22
* write the new translation table entry
23
* execute a DSB insn
14
24
15
Cc: qemu-stable@nongnu.org
25
The point of this is to ensure that no TLB can simultaneously contain
16
Fixes: ab52f973a50
26
TLB entries for the old and the new entry, which would traditionally
27
be UNPREDICTABLE (allowing the CPU to generate a TLB Conflict fault
28
or to use a random mishmash of values from the old and the new
29
entry). FEAT_BBM level 2 says "for the specific case where the only
30
thing that changed is the size of the block, the TLB is guaranteed
31
not to do weird things even if there are multiple entries for an
32
address", which means that software can now do:
33
34
* replace old translation table entry with new entry
35
* DSB
36
* broadcast TLB invalidate
37
* DSB
38
39
As the SMMU spec notes, valid ways to do this include:
40
41
* if there are multiple entries in the TLB for an address,
42
choose one of them and use it, ignoring the others
43
* if there are multiple entries in the TLB for an address,
44
throw them all out and do a page table walk to get a new one
45
46
QEMU's page table walk implementation for Arm CPUs already meets the
47
requirements for FEAT_BBM level 2. When we cache an entry in our TCG
48
TLB, we do so only for the specific (non-huge) page that the address
49
is in, and there is no way for the TLB data structure to ever have
50
more than one TLB entry for that page. (We handle huge pages only in
51
that we track what part of the address space is covered by huge pages
52
so that a TLB invalidate operation for an address in a huge page
53
results in an invalidation of the whole TLB.) We ignore the Contiguous
54
bit in page table entries, so we don't have to do anything for the
55
parts of FEAT_BBM that deal with changis to the Contiguous bit.
56
57
FEAT_BBM level 2 also requires that the nT bit in block descriptors
58
must be ignored; since commit 39a1fd25287f5dece5 we do this.
59
60
It's therefore safe for QEMU to advertise FEAT_BBM level 2 by
61
setting ID_AA64MMFR2_EL1.BBM to 2.
62
17
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
63
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
18
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
64
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
19
Message-id: 20180510140141.12120-1-peter.maydell@linaro.org
65
Message-id: 20220426160422.2353158-3-peter.maydell@linaro.org
20
---
66
---
21
fpu/softfloat.c | 4 ++--
67
docs/system/arm/emulation.rst | 1 +
22
1 file changed, 2 insertions(+), 2 deletions(-)
68
target/arm/cpu64.c | 1 +
69
2 files changed, 2 insertions(+)
23
70
24
diff --git a/fpu/softfloat.c b/fpu/softfloat.c
71
diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst
25
index XXXXXXX..XXXXXXX 100644
72
index XXXXXXX..XXXXXXX 100644
26
--- a/fpu/softfloat.c
73
--- a/docs/system/arm/emulation.rst
27
+++ b/fpu/softfloat.c
74
+++ b/docs/system/arm/emulation.rst
28
@@ -XXX,XX +XXX,XX @@ static int64_t round_to_int_and_pack(FloatParts in, int rmode,
75
@@ -XXX,XX +XXX,XX @@ the following architecture extensions:
29
r = UINT64_MAX;
76
- FEAT_AA32HPD (AArch32 hierarchical permission disables)
30
}
77
- FEAT_AA32I8MM (AArch32 Int8 matrix multiplication instructions)
31
if (p.sign) {
78
- FEAT_AES (AESD and AESE instructions)
32
- if (r < -(uint64_t) min) {
79
+- FEAT_BBM at level 2 (Translation table break-before-make levels)
33
+ if (r <= -(uint64_t) min) {
80
- FEAT_BF16 (AArch64 BFloat16 instructions)
34
return -r;
81
- FEAT_BTI (Branch Target Identification)
35
} else {
82
- FEAT_DIT (Data Independent Timing instructions)
36
s->float_exception_flags = orig_flags | float_flag_invalid;
83
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
37
return min;
84
index XXXXXXX..XXXXXXX 100644
38
}
85
--- a/target/arm/cpu64.c
39
} else {
86
+++ b/target/arm/cpu64.c
40
- if (r < max) {
87
@@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj)
41
+ if (r <= max) {
88
t = FIELD_DP64(t, ID_AA64MMFR2, ST, 1); /* TTST */
42
return r;
89
t = FIELD_DP64(t, ID_AA64MMFR2, VARANGE, 1); /* FEAT_LVA */
43
} else {
90
t = FIELD_DP64(t, ID_AA64MMFR2, TTL, 1); /* FEAT_TTL */
44
s->float_exception_flags = orig_flags | float_flag_invalid;
91
+ t = FIELD_DP64(t, ID_AA64MMFR2, BBM, 2); /* FEAT_BBM at level 2 */
92
cpu->isar.id_aa64mmfr2 = t;
93
94
t = cpu->isar.id_aa64zfr0;
45
--
95
--
46
2.17.0
96
2.25.1
47
48
diff view generated by jsdifflib
1
Usually the logging of the CPU state produced by -d cpu is sufficient
1
The Arm SMMUv3 includes an optional feature equivalent to the CPU
2
to diagnose problems, but sometimes you want to see the state of
2
FEAT_BBM, which permits an OS to switch a range of memory between
3
the floating point registers as well. We don't want to enable that
3
"covered by a huge page" and "covered by a sequence of normal pages"
4
by default as it adds a lot of extra data to the log; instead,
4
without having to engage in the traditional 'break-before-make'
5
allow it to be optionally enabled via -d fpu.
5
dance. (This is particularly important for the SMMU, because devices
6
performing I/O through an SMMU are less likely to be able to cope with
7
the window in the sequence where an access results in a translation
8
fault.) The SMMU spec explicitly notes that one of the valid ways to
9
be a BBM level 2 compliant implementation is:
10
* if there are multiple entries in the TLB for an address,
11
choose one of them and use it, ignoring the others
12
13
Our SMMU TLB implementation (unlike our CPU TLB) does allow multiple
14
TLB entries for an address, because the translation table level is
15
part of the SMMUIOTLBKey, and so our IOTLB hashtable can include
16
entries for the same address where the leaf was at different levels
17
(i.e. both hugepage and normal page). Our TLB lookup implementation in
18
smmu_iotlb_lookup() will always find the entry with the lowest level
19
(i.e. it prefers the hugepage over the normal page) and ignore any
20
others. TLB invalidation correctly removes all TLB entries matching
21
the specified address or address range (unless the guest specifies the
22
leaf level explicitly, in which case it gets what it asked for). So we
23
can validly advertise support for BBML level 2.
24
25
Note that we still can't yet advertise ourselves as an SMMU v3.2,
26
because v3.2 requires support for the S2FWB feature, which we don't
27
yet implement.
6
28
7
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
29
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
30
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
9
Message-id: 20180510130024.31678-1-peter.maydell@linaro.org
31
Reviewed-by: Eric Auger <eric.auger@redhat.com>
32
Message-id: 20220426160422.2353158-4-peter.maydell@linaro.org
10
---
33
---
11
include/qemu/log.h | 1 +
34
hw/arm/smmuv3-internal.h | 1 +
12
accel/tcg/cpu-exec.c | 9 ++++++---
35
hw/arm/smmuv3.c | 1 +
13
util/log.c | 2 ++
36
2 files changed, 2 insertions(+)
14
3 files changed, 9 insertions(+), 3 deletions(-)
15
37
16
diff --git a/include/qemu/log.h b/include/qemu/log.h
38
diff --git a/hw/arm/smmuv3-internal.h b/hw/arm/smmuv3-internal.h
17
index XXXXXXX..XXXXXXX 100644
39
index XXXXXXX..XXXXXXX 100644
18
--- a/include/qemu/log.h
40
--- a/hw/arm/smmuv3-internal.h
19
+++ b/include/qemu/log.h
41
+++ b/hw/arm/smmuv3-internal.h
20
@@ -XXX,XX +XXX,XX @@ static inline bool qemu_log_separate(void)
42
@@ -XXX,XX +XXX,XX @@ REG32(IDR2, 0x8)
21
#define CPU_LOG_PAGE (1 << 14)
43
REG32(IDR3, 0xc)
22
/* LOG_TRACE (1 << 15) is defined in log-for-trace.h */
44
FIELD(IDR3, HAD, 2, 1);
23
#define CPU_LOG_TB_OP_IND (1 << 16)
45
FIELD(IDR3, RIL, 10, 1);
24
+#define CPU_LOG_TB_FPU (1 << 17)
46
+ FIELD(IDR3, BBML, 11, 2);
25
47
REG32(IDR4, 0x10)
26
/* Lock output for a series of related logs. Since this is not needed
48
REG32(IDR5, 0x14)
27
* for a single qemu_log / qemu_log_mask / qemu_log_mask_and_addr, we
49
FIELD(IDR5, OAS, 0, 3);
28
diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c
50
diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
29
index XXXXXXX..XXXXXXX 100644
51
index XXXXXXX..XXXXXXX 100644
30
--- a/accel/tcg/cpu-exec.c
52
--- a/hw/arm/smmuv3.c
31
+++ b/accel/tcg/cpu-exec.c
53
+++ b/hw/arm/smmuv3.c
32
@@ -XXX,XX +XXX,XX @@ static inline tcg_target_ulong cpu_tb_exec(CPUState *cpu, TranslationBlock *itb)
54
@@ -XXX,XX +XXX,XX @@ static void smmuv3_init_regs(SMMUv3State *s)
33
if (qemu_loglevel_mask(CPU_LOG_TB_CPU)
55
34
&& qemu_log_in_addr_range(itb->pc)) {
56
s->idr[3] = FIELD_DP32(s->idr[3], IDR3, RIL, 1);
35
qemu_log_lock();
57
s->idr[3] = FIELD_DP32(s->idr[3], IDR3, HAD, 1);
36
+ int flags = 0;
58
+ s->idr[3] = FIELD_DP32(s->idr[3], IDR3, BBML, 2);
37
+ if (qemu_loglevel_mask(CPU_LOG_TB_FPU)) {
59
38
+ flags |= CPU_DUMP_FPU;
60
/* 4K, 16K and 64K granule support */
39
+ }
61
s->idr[5] = FIELD_DP32(s->idr[5], IDR5, GRAN4K, 1);
40
#if defined(TARGET_I386)
41
- log_cpu_state(cpu, CPU_DUMP_CCOP);
42
-#else
43
- log_cpu_state(cpu, 0);
44
+ flags |= CPU_DUMP_CCOP;
45
#endif
46
+ log_cpu_state(cpu, flags);
47
qemu_log_unlock();
48
}
49
#endif /* DEBUG_DISAS */
50
diff --git a/util/log.c b/util/log.c
51
index XXXXXXX..XXXXXXX 100644
52
--- a/util/log.c
53
+++ b/util/log.c
54
@@ -XXX,XX +XXX,XX @@ const QEMULogItem qemu_log_items[] = {
55
"show trace before each executed TB (lots of logs)" },
56
{ CPU_LOG_TB_CPU, "cpu",
57
"show CPU registers before entering a TB (lots of logs)" },
58
+ { CPU_LOG_TB_FPU, "fpu",
59
+ "include FPU registers in the 'cpu' logging" },
60
{ CPU_LOG_MMU, "mmu",
61
"log MMU-related activities" },
62
{ CPU_LOG_PCALL, "pcall",
63
--
62
--
64
2.17.0
63
2.25.1
65
66
diff view generated by jsdifflib