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target-arm queue:

Browse Source 
* Don't require 'virt' board to be compiled in for ACPI GHES code
  * docs: Document which architecture extensions we emulate
  * Fix bugs in M-profile FPCXT_NS accesses
  * First slice of MVE patches
  * Implement MTE3
  * docs/system: arm: Add nRF boards description
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210624' into staging

target-arm queue:
 * Don't require 'virt' board to be compiled in for ACPI GHES code
 * docs: Document which architecture extensions we emulate
 * Fix bugs in M-profile FPCXT_NS accesses
 * First slice of MVE patches
 * Implement MTE3
 * docs/system: arm: Add nRF boards description

# gpg: Signature made Thu 24 Jun 2021 14:59:16 BST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20210624: (57 commits)
  docs/system: arm: Add nRF boards description
  target/arm: Implement MTE3
  target/arm: Make VMOV scalar <-> gpreg beatwise for MVE
  target/arm: Implement MVE VADDV
  target/arm: Implement MVE VHCADD
  target/arm: Implement MVE VCADD
  target/arm: Implement MVE VADC, VSBC
  target/arm: Implement MVE VRHADD
  target/arm: Implement MVE VQDMULL (vector)
  target/arm: Implement MVE VQDMLSDH and VQRDMLSDH
  target/arm: Implement MVE VQDMLADH and VQRDMLADH
  target/arm: Implement MVE VRSHL
  target/arm: Implement MVE VSHL insn
  target/arm: Implement MVE VQRSHL
  target/arm: Implement MVE VQSHL (vector)
  target/arm: Implement MVE VQADD, VQSUB (vector)
  target/arm: Implement MVE VQDMULH, VQRDMULH (vector)
  target/arm: Implement MVE VQDMULL scalar
  target/arm: Implement MVE VQDMULH and VQRDMULH (scalar)
  target/arm: Implement MVE VQADD and VQSUB
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2021-06-24 15:00:33 +01:00
commit ecba223da6
27 changed files with 3578 additions and 629 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
MAINTAINERS
View File

@ -1032,6 +1032,7 @@ F: hw/*/microbit*.c
F: include/hw/*/nrf51*.h
F: include/hw/*/microbit*.h
F: tests/qtest/microbit-test.c
F: docs/system/arm/nrf.rst
AVR Machines
-------------

103
docs/system/arm/emulation.rst Normal file
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@ -0,0 +1,103 @@
A-profile CPU architecture support
==================================
QEMU's TCG emulation includes support for the Armv5, Armv6, Armv7 and
Armv8 versions of the A-profile architecture. It also has support for
the following architecture extensions:
- FEAT_AA32BF16 (AArch32 BFloat16 instructions)
- FEAT_AA32HPD (AArch32 hierarchical permission disables)
- FEAT_AA32I8MM (AArch32 Int8 matrix multiplication instructions)
- FEAT_AES (AESD and AESE instructions)
- FEAT_BF16 (AArch64 BFloat16 instructions)
- FEAT_BTI (Branch Target Identification)
- FEAT_DIT (Data Independent Timing instructions)
- FEAT_DPB (DC CVAP instruction)
- FEAT_DotProd (Advanced SIMD dot product instructions)
- FEAT_FCMA (Floating-point complex number instructions)
- FEAT_FHM (Floating-point half-precision multiplication instructions)
- FEAT_FP16 (Half-precision floating-point data processing)
- FEAT_FRINTTS (Floating-point to integer instructions)
- FEAT_FlagM (Flag manipulation instructions v2)
- FEAT_FlagM2 (Enhancements to flag manipulation instructions)
- FEAT_HPDS (Hierarchical permission disables)
- FEAT_I8MM (AArch64 Int8 matrix multiplication instructions)
- FEAT_JSCVT (JavaScript conversion instructions)
- FEAT_LOR (Limited ordering regions)
- FEAT_LRCPC (Load-acquire RCpc instructions)
- FEAT_LRCPC2 (Load-acquire RCpc instructions v2)
- FEAT_LSE (Large System Extensions)
- FEAT_MTE (Memory Tagging Extension)
- FEAT_MTE2 (Memory Tagging Extension)
- FEAT_MTE3 (MTE Asymmetric Fault Handling)
- FEAT_PAN (Privileged access never)
- FEAT_PAN2 (AT S1E1R and AT S1E1W instruction variants affected by PSTATE.PAN)
- FEAT_PAuth (Pointer authentication)
- FEAT_PMULL (PMULL, PMULL2 instructions)
- FEAT_PMUv3p1 (PMU Extensions v3.1)
- FEAT_PMUv3p4 (PMU Extensions v3.4)
- FEAT_RDM (Advanced SIMD rounding double multiply accumulate instructions)
- FEAT_RNG (Random number generator)
- FEAT_SB (Speculation Barrier)
- FEAT_SEL2 (Secure EL2)
- FEAT_SHA1 (SHA1 instructions)
- FEAT_SHA256 (SHA256 instructions)
- FEAT_SHA3 (Advanced SIMD SHA3 instructions)
- FEAT_SHA512 (Advanced SIMD SHA512 instructions)
- FEAT_SM3 (Advanced SIMD SM3 instructions)
- FEAT_SM4 (Advanced SIMD SM4 instructions)
- FEAT_SPECRES (Speculation restriction instructions)
- FEAT_SSBS (Speculative Store Bypass Safe)
- FEAT_TLBIOS (TLB invalidate instructions in Outer Shareable domain)
- FEAT_TLBIRANGE (TLB invalidate range instructions)
- FEAT_TTCNP (Translation table Common not private translations)
- FEAT_TTST (Small translation tables)
- FEAT_UAO (Unprivileged Access Override control)
- FEAT_VHE (Virtualization Host Extensions)
- FEAT_VMID16 (16-bit VMID)
- FEAT_XNX (Translation table stage 2 Unprivileged Execute-never)
- SVE (The Scalable Vector Extension)
- SVE2 (The Scalable Vector Extension v2)
For information on the specifics of these extensions, please refer
to the `Armv8-A Arm Architecture Reference Manual
<https://developer.arm.com/documentation/ddi0487/latest>`_.
When a specific named CPU is being emulated, only those features which
are present in hardware for that CPU are emulated. (If a feature is
not in the list above then it is not supported, even if the real
hardware should have it.) The ``max`` CPU enables all features.
R-profile CPU architecture support
==================================
QEMU's TCG emulation support for R-profile CPUs is currently limited.
We emulate only the Cortex-R5 and Cortex-R5F CPUs.
M-profile CPU architecture support
==================================
QEMU's TCG emulation includes support for Armv6-M, Armv7-M, Armv8-M, and
Armv8.1-M versions of the M-profile architucture. It also has support
for the following architecture extensions:
- FP (Floating-point Extension)
- FPCXT (FPCXT access instructions)
- HP (Half-precision floating-point instructions)
- LOB (Low Overhead loops and Branch future)
- M (Main Extension)
- MPU (Memory Protection Unit Extension)
- PXN (Privileged Execute Never)
- RAS (Reliability, Serviceability and Availability): "minimum RAS Extension" only
- S (Security Extension)
- ST (System Timer Extension)
For information on the specifics of these extensions, please refer
to the `Armv8-M Arm Architecture Reference Manual
<https://developer.arm.com/documentation/ddi0553/latest>`_.
When a specific named CPU is being emulated, only those features which
are present in hardware for that CPU are emulated. (If a feature is
not in the list above then it is not supported, even if the real
hardware should have it.) There is no equivalent of the ``max`` CPU for
M-profile.

51
docs/system/arm/nrf.rst Normal file
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@ -0,0 +1,51 @@
Nordic nRF boards (``microbit``)
================================
The `Nordic nRF`_ chips are a family of ARM-based System-on-Chip that
are designed to be used for low-power and short-range wireless solutions.
.. _Nordic nRF: https://www.nordicsemi.com/Products
The nRF51 series is the first series for short range wireless applications.
It is superseded by the nRF52 series.
The following machines are based on this chip :
- ``microbit`` BBC micro:bit board with nRF51822 SoC
There are other series such as nRF52, nRF53 and nRF91 which are currently not
supported by QEMU.
Supported devices
-----------------
* ARM Cortex-M0 (ARMv6-M)
* Serial ports (UART)
* Clock controller
* Timers
* Random Number Generator (RNG)
* GPIO controller
* NVMC
* SWI
Missing devices
---------------
* Watchdog
* Real-Time Clock (RTC) controller
* TWI (i2c)
* SPI controller
* Analog to Digital Converter (ADC)
* Quadrature decoder
* Radio
Boot options
------------
The Micro:bit machine can be started using the ``-device`` option to load a
firmware in `ihex format`_. Example:
.. _ihex format: https://en.wikipedia.org/wiki/Intel_HEX
.. code-block:: bash
$ qemu-system-arm -M microbit -device loader,file=test.hex

7
docs/system/target-arm.rst
View File

@ -87,6 +87,7 @@ undocumented; you can get a complete list by running
arm/digic
arm/musicpal
arm/gumstix
arm/nrf
arm/nseries
arm/nuvoton
arm/orangepi
@ -99,6 +100,12 @@ undocumented; you can get a complete list by running
arm/virt
arm/xlnx-versal-virt
Emulated CPU architecture support
=================================
.. toctree::
arm/emulation
Arm CPU features
================

22
hw/acpi/ghes-stub.c Normal file
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@ -0,0 +1,22 @@
/*
* Support for generating APEI tables and recording CPER for Guests:
* stub functions.
*
* Copyright (c) 2021 Linaro, Ltd
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "hw/acpi/ghes.h"
int acpi_ghes_record_errors(uint8_t source_id, uint64_t physical_address)
{
return -1;
}
bool acpi_ghes_present(void)
{
return false;
}

17
hw/acpi/ghes.c
View File

@ -386,6 +386,8 @@ void acpi_ghes_add_fw_cfg(AcpiGhesState *ags, FWCfgState *s,
/* Create a read-write fw_cfg file for Address */
fw_cfg_add_file_callback(s, ACPI_GHES_DATA_ADDR_FW_CFG_FILE, NULL, NULL,
NULL, &(ags->ghes_addr_le), sizeof(ags->ghes_addr_le), false);
ags->present = true;
}
int acpi_ghes_record_errors(uint8_t source_id, uint64_t physical_address)
@ -443,3 +445,18 @@ int acpi_ghes_record_errors(uint8_t source_id, uint64_t physical_address)
return ret;
}
bool acpi_ghes_present(void)
{
AcpiGedState *acpi_ged_state;
AcpiGhesState *ags;
acpi_ged_state = ACPI_GED(object_resolve_path_type("", TYPE_ACPI_GED,
NULL));
if (!acpi_ged_state) {
return false;
}
ags = &acpi_ged_state->ghes_state;
return ags->present;
}

6
hw/acpi/meson.build
View File

@ -13,13 +13,13 @@ acpi_ss.add(when: 'CONFIG_ACPI_PCI', if_true: files('pci.c'))
acpi_ss.add(when: 'CONFIG_ACPI_VMGENID', if_true: files('vmgenid.c'))
acpi_ss.add(when: 'CONFIG_ACPI_HW_REDUCED', if_true: files('generic_event_device.c'))
acpi_ss.add(when: 'CONFIG_ACPI_HMAT', if_true: files('hmat.c'))
acpi_ss.add(when: 'CONFIG_ACPI_APEI', if_true: files('ghes.c'))
acpi_ss.add(when: 'CONFIG_ACPI_APEI', if_true: files('ghes.c'), if_false: files('ghes-stub.c'))
acpi_ss.add(when: 'CONFIG_ACPI_X86', if_true: files('core.c', 'piix4.c', 'pcihp.c'), if_false: files('acpi-stub.c'))
acpi_ss.add(when: 'CONFIG_ACPI_X86_ICH', if_true: files('ich9.c', 'tco.c'))
acpi_ss.add(when: 'CONFIG_IPMI', if_true: files('ipmi.c'), if_false: files('ipmi-stub.c'))
acpi_ss.add(when: 'CONFIG_PC', if_false: files('acpi-x86-stub.c'))
acpi_ss.add(when: 'CONFIG_TPM', if_true: files('tpm.c'))
softmmu_ss.add(when: 'CONFIG_ACPI', if_false: files('acpi-stub.c', 'aml-build-stub.c'))
softmmu_ss.add(when: 'CONFIG_ACPI', if_false: files('acpi-stub.c', 'aml-build-stub.c', 'ghes-stub.c'))
softmmu_ss.add_all(when: 'CONFIG_ACPI', if_true: acpi_ss)
softmmu_ss.add(when: 'CONFIG_ALL', if_true: files('acpi-stub.c', 'aml-build-stub.c',
'acpi-x86-stub.c', 'ipmi-stub.c'))
'acpi-x86-stub.c', 'ipmi-stub.c', 'ghes-stub.c'))

9
include/hw/acpi/ghes.h
View File

@ -64,6 +64,7 @@ enum {
typedef struct AcpiGhesState {
uint64_t ghes_addr_le;
bool present; /* True if GHES is present at all on this board */
} AcpiGhesState;
void build_ghes_error_table(GArray *hardware_errors, BIOSLinker *linker);
@ -72,4 +73,12 @@ void acpi_build_hest(GArray *table_data, BIOSLinker *linker,
void acpi_ghes_add_fw_cfg(AcpiGhesState *vms, FWCfgState *s,
GArray *hardware_errors);
int acpi_ghes_record_errors(uint8_t notify, uint64_t error_physical_addr);
/**
* acpi_ghes_present: Report whether ACPI GHES table is present
*
* Returns: true if the system has an ACPI GHES table and it is
* safe to call acpi_ghes_record_errors() to record a memory error.
*/
bool acpi_ghes_present(void);
#endif

8
include/tcg/tcg-op.h
View File

@ -338,6 +338,9 @@ void tcg_gen_umin_i32(TCGv_i32, TCGv_i32 arg1, TCGv_i32 arg2);
void tcg_gen_umax_i32(TCGv_i32, TCGv_i32 arg1, TCGv_i32 arg2);
void tcg_gen_abs_i32(TCGv_i32, TCGv_i32);
/* Replicate a value of size @vece from @in to all the lanes in @out */
void tcg_gen_dup_i32(unsigned vece, TCGv_i32 out, TCGv_i32 in);
static inline void tcg_gen_discard_i32(TCGv_i32 arg)
{
tcg_gen_op1_i32(INDEX_op_discard, arg);
@ -534,6 +537,9 @@ void tcg_gen_umin_i64(TCGv_i64, TCGv_i64 arg1, TCGv_i64 arg2);
void tcg_gen_umax_i64(TCGv_i64, TCGv_i64 arg1, TCGv_i64 arg2);
void tcg_gen_abs_i64(TCGv_i64, TCGv_i64);
/* Replicate a value of size @vece from @in to all the lanes in @out */
void tcg_gen_dup_i64(unsigned vece, TCGv_i64 out, TCGv_i64 in);
#if TCG_TARGET_REG_BITS == 64
static inline void tcg_gen_discard_i64(TCGv_i64 arg)
{
@ -1127,6 +1133,7 @@ void tcg_gen_stl_vec(TCGv_vec r, TCGv_ptr base, TCGArg offset, TCGType t);
#define tcg_gen_atomic_smax_fetch_tl tcg_gen_atomic_smax_fetch_i64
#define tcg_gen_atomic_umax_fetch_tl tcg_gen_atomic_umax_fetch_i64
#define tcg_gen_dup_tl_vec tcg_gen_dup_i64_vec
#define tcg_gen_dup_tl tcg_gen_dup_i64
#else
#define tcg_gen_movi_tl tcg_gen_movi_i32
#define tcg_gen_mov_tl tcg_gen_mov_i32
@ -1241,6 +1248,7 @@ void tcg_gen_stl_vec(TCGv_vec r, TCGv_ptr base, TCGArg offset, TCGType t);
#define tcg_gen_atomic_smax_fetch_tl tcg_gen_atomic_smax_fetch_i32
#define tcg_gen_atomic_umax_fetch_tl tcg_gen_atomic_umax_fetch_i32
#define tcg_gen_dup_tl_vec tcg_gen_dup_i32_vec
#define tcg_gen_dup_tl tcg_gen_dup_i32
#endif
#if UINTPTR_MAX == UINT32_MAX

1
include/tcg/tcg.h
View File

@ -1264,7 +1264,6 @@ uint64_t dup_const(unsigned vece, uint64_t c);
: (qemu_build_not_reached_always(), 0)) \
: dup_const(VECE, C))
/*
* Memory helpers that will be used by TCG generated code.
*/

2
target/arm/cpu64.c
View File

@ -683,7 +683,7 @@ static void aarch64_max_initfn(Object *obj)
* during realize if the board provides no tag memory, much like
* we do for EL2 with the virtualization=on property.
*/
t = FIELD_DP64(t, ID_AA64PFR1, MTE, 2);
t = FIELD_DP64(t, ID_AA64PFR1, MTE, 3);
cpu->isar.id_aa64pfr1 = t;
t = cpu->isar.id_aa64mmfr0;

357
target/arm/helper-mve.h Normal file
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@ -0,0 +1,357 @@
/*
* M-profile MVE specific helper definitions
*
* Copyright (c) 2021 Linaro, Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
DEF_HELPER_FLAGS_3(mve_vldrb, TCG_CALL_NO_WG, void, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vldrh, TCG_CALL_NO_WG, void, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vldrw, TCG_CALL_NO_WG, void, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vstrb, TCG_CALL_NO_WG, void, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vstrh, TCG_CALL_NO_WG, void, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vstrw, TCG_CALL_NO_WG, void, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vldrb_sh, TCG_CALL_NO_WG, void, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vldrb_sw, TCG_CALL_NO_WG, void, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vldrb_uh, TCG_CALL_NO_WG, void, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vldrb_uw, TCG_CALL_NO_WG, void, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vldrh_sw, TCG_CALL_NO_WG, void, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vldrh_uw, TCG_CALL_NO_WG, void, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vstrb_h, TCG_CALL_NO_WG, void, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vstrb_w, TCG_CALL_NO_WG, void, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vstrh_w, TCG_CALL_NO_WG, void, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vdup, TCG_CALL_NO_WG, void, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vclsb, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vclsh, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vclsw, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vclzb, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vclzh, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vclzw, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vrev16b, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vrev32b, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vrev32h, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vrev64b, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vrev64h, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vrev64w, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vmvn, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vabsb, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vabsh, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vabsw, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vfabsh, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vfabss, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vnegb, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vnegh, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vnegw, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vfnegh, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_3(mve_vfnegs, TCG_CALL_NO_WG, void, env, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vand, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vbic, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vorr, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vorn, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_veor, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vaddb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vaddh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vaddw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vsubb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vsubh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vsubw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmulb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmulh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmulw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmulhsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmulhsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmulhsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmulhub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmulhuh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmulhuw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vrmulhsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vrmulhsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vrmulhsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vrmulhub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vrmulhuh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vrmulhuw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmaxsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmaxsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmaxsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmaxub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmaxuh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmaxuw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vminsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vminsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vminsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vminub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vminuh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vminuw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vabdsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vabdsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vabdsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vabdub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vabduh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vabduw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vhaddsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vhaddsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vhaddsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vhaddub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vhadduh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vhadduw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vhsubsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vhsubsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vhsubsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vhsubub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vhsubuh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vhsubuw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmullbsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmullbsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmullbsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmullbub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmullbuh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmullbuw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmulltsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmulltsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmulltsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmulltub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmulltuh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vmulltuw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmulhb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmulhh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmulhw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrdmulhb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrdmulhh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrdmulhw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqaddsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqaddsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqaddsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqaddub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqadduh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqadduw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqsubsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqsubsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqsubsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqsubub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqsubuh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqsubuw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vshlsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vshlsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vshlsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vshlub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vshluh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vshluw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vrshlsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vrshlsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vrshlsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vrshlub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vrshluh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vrshluw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqshlsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqshlsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqshlsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqshlub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqshluh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqshluw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrshlsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrshlsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrshlsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrshlub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrshluh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrshluw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmladhb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmladhh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmladhw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmladhxb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmladhxh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmladhxw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrdmladhb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrdmladhh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrdmladhw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrdmladhxb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrdmladhxh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrdmladhxw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmlsdhb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmlsdhh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmlsdhw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmlsdhxb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmlsdhxh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmlsdhxw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrdmlsdhb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrdmlsdhh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrdmlsdhw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrdmlsdhxb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrdmlsdhxh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqrdmlsdhxw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmullbh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmullbw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmullth, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vqdmulltw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vrhaddsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vrhaddsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vrhaddsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vrhaddub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vrhadduh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vrhadduw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vadc, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vadci, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vsbc, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vsbci, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vcadd90b, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vcadd90h, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vcadd90w, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vcadd270b, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vcadd270h, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vcadd270w, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vhcadd90b, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vhcadd90h, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vhcadd90w, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vhcadd270b, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vhcadd270h, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vhcadd270w, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
DEF_HELPER_FLAGS_4(mve_vadd_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vadd_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vadd_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vsub_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vsub_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vsub_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vmul_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vmul_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vmul_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vhadds_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vhadds_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vhadds_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vhaddu_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vhaddu_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vhaddu_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vhsubs_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vhsubs_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vhsubs_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vhsubu_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vhsubu_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vhsubu_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqadds_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqadds_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqadds_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqaddu_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqaddu_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqaddu_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqsubs_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqsubs_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqsubs_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqsubu_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqsubu_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqsubu_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqdmulh_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqdmulh_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqdmulh_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqrdmulh_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqrdmulh_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqrdmulh_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vbrsrb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vbrsrh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vbrsrw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqdmullb_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqdmullb_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqdmullt_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqdmullt_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vmlaldavsh, TCG_CALL_NO_WG, i64, env, ptr, ptr, i64)
DEF_HELPER_FLAGS_4(mve_vmlaldavsw, TCG_CALL_NO_WG, i64, env, ptr, ptr, i64)
DEF_HELPER_FLAGS_4(mve_vmlaldavxsh, TCG_CALL_NO_WG, i64, env, ptr, ptr, i64)
DEF_HELPER_FLAGS_4(mve_vmlaldavxsw, TCG_CALL_NO_WG, i64, env, ptr, ptr, i64)
DEF_HELPER_FLAGS_4(mve_vmlaldavuh, TCG_CALL_NO_WG, i64, env, ptr, ptr, i64)
DEF_HELPER_FLAGS_4(mve_vmlaldavuw, TCG_CALL_NO_WG, i64, env, ptr, ptr, i64)
DEF_HELPER_FLAGS_4(mve_vmlsldavsh, TCG_CALL_NO_WG, i64, env, ptr, ptr, i64)
DEF_HELPER_FLAGS_4(mve_vmlsldavsw, TCG_CALL_NO_WG, i64, env, ptr, ptr, i64)
DEF_HELPER_FLAGS_4(mve_vmlsldavxsh, TCG_CALL_NO_WG, i64, env, ptr, ptr, i64)
DEF_HELPER_FLAGS_4(mve_vmlsldavxsw, TCG_CALL_NO_WG, i64, env, ptr, ptr, i64)
DEF_HELPER_FLAGS_4(mve_vrmlaldavhsw, TCG_CALL_NO_WG, i64, env, ptr, ptr, i64)
DEF_HELPER_FLAGS_4(mve_vrmlaldavhxsw, TCG_CALL_NO_WG, i64, env, ptr, ptr, i64)
DEF_HELPER_FLAGS_4(mve_vrmlaldavhuw, TCG_CALL_NO_WG, i64, env, ptr, ptr, i64)
DEF_HELPER_FLAGS_4(mve_vrmlsldavhsw, TCG_CALL_NO_WG, i64, env, ptr, ptr, i64)
DEF_HELPER_FLAGS_4(mve_vrmlsldavhxsw, TCG_CALL_NO_WG, i64, env, ptr, ptr, i64)
DEF_HELPER_FLAGS_3(mve_vaddvsb, TCG_CALL_NO_WG, i32, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vaddvub, TCG_CALL_NO_WG, i32, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vaddvsh, TCG_CALL_NO_WG, i32, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vaddvuh, TCG_CALL_NO_WG, i32, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vaddvsw, TCG_CALL_NO_WG, i32, env, ptr, i32)
DEF_HELPER_FLAGS_3(mve_vaddvuw, TCG_CALL_NO_WG, i32, env, ptr, i32)

2
target/arm/helper.h
View File

@ -1019,3 +1019,5 @@ DEF_HELPER_FLAGS_6(gvec_bfmlal_idx, TCG_CALL_NO_RWG,
#include "helper-a64.h"
#include "helper-sve.h"
#endif
#include "helper-mve.h"

11
target/arm/internals.h
View File

@ -1202,4 +1202,15 @@ static inline uint64_t useronly_maybe_clean_ptr(uint32_t desc, uint64_t ptr)
return ptr;
}
/* Values for M-profile PSR.ECI for MVE insns */
enum MVEECIState {
ECI_NONE = 0, /* No completed beats */
ECI_A0 = 1, /* Completed: A0 */
ECI_A0A1 = 2, /* Completed: A0, A1 */
/* 3 is reserved */
ECI_A0A1A2 = 4, /* Completed: A0, A1, A2 */
ECI_A0A1A2B0 = 5, /* Completed: A0, A1, A2, B0 */
/* All other values reserved */
};
#endif

6
target/arm/kvm64.c
View File

@ -1410,14 +1410,10 @@ void kvm_arch_on_sigbus_vcpu(CPUState *c, int code, void *addr)
{
ram_addr_t ram_addr;
hwaddr paddr;
Object *obj = qdev_get_machine();
VirtMachineState *vms = VIRT_MACHINE(obj);
bool acpi_enabled = virt_is_acpi_enabled(vms);
assert(code == BUS_MCEERR_AR || code == BUS_MCEERR_AO);
if (acpi_enabled && addr &&
object_property_get_bool(obj, "ras", NULL)) {
if (acpi_ghes_present() && addr) {
ram_addr = qemu_ram_addr_from_host(addr);
if (ram_addr != RAM_ADDR_INVALID &&
kvm_physical_memory_addr_from_host(c->kvm_state, addr, &paddr)) {

24
target/arm/m-nocp.decode
View File

@ -34,6 +34,14 @@
&nocp cp
# M-profile VLDR/VSTR to sysreg
%vldr_sysreg 22:1 13:3
%imm7_0x4 0:7 !function=times_4
&vldr_sysreg rn reg imm a w p
@vldr_sysreg .... ... . a:1 . . . rn:4 ... . ... .. ....... \
reg=%vldr_sysreg imm=%imm7_0x4 &vldr_sysreg
{
# Special cases which do not take an early NOCP: VLLDM and VLSTM
VLLDM_VLSTM 1110 1100 001 l:1 rn:4 0000 1010 op:1 000 0000
@ -41,6 +49,22 @@
VSCCLRM 1110 1100 1.01 1111 .... 1011 imm:7 0 vd=%vd_dp size=3
VSCCLRM 1110 1100 1.01 1111 .... 1010 imm:8 vd=%vd_sp size=2
# FP system register accesses: these are a special case because accesses
# to FPCXT_NS succeed even if the FPU is disabled. We therefore need
# to handle them before the big NOCP blocks. Note that within these
# insns NOCP still has higher priority than UNDEFs; this is implemented
# by their returning 'false' for UNDEF so as to fall through into the
# NOCP check (in contrast to VLLDM etc, which call unallocated_encoding()
# for the UNDEFs there that must take precedence over NOCP.)
VMSR_VMRS ---- 1110 111 l:1 reg:4 rt:4 1010 0001 0000
# P=0 W=0 is SEE "Related encodings", so split into two patterns
VLDR_sysreg ---- 110 1 . . w:1 1 .... ... 0 111 11 ....... @vldr_sysreg p=1
VLDR_sysreg ---- 110 0 . . 1 1 .... ... 0 111 11 ....... @vldr_sysreg p=0 w=1
VSTR_sysreg ---- 110 1 . . w:1 0 .... ... 0 111 11 ....... @vldr_sysreg p=1
VSTR_sysreg ---- 110 0 . . 1 0 .... ... 0 111 11 ....... @vldr_sysreg p=0 w=1
NOCP 111- 1110 ---- ---- ---- cp:4 ---- ---- &nocp
NOCP 111- 110- ---- ---- ---- cp:4 ---- ---- &nocp
# From v8.1M onwards this range will also NOCP:

1
target/arm/meson.build
View File

@ -23,6 +23,7 @@ arm_ss.add(files(
'helper.c',
'iwmmxt_helper.c',
'm_helper.c',
'mve_helper.c',
'neon_helper.c',
'op_helper.c',
'tlb_helper.c',

82
target/arm/mte_helper.c
View File

@ -538,13 +538,50 @@ void HELPER(stzgm_tags)(CPUARMState *env, uint64_t ptr, uint64_t val)
}
}
static void mte_sync_check_fail(CPUARMState *env, uint32_t desc,
uint64_t dirty_ptr, uintptr_t ra)
{
int is_write, syn;
env->exception.vaddress = dirty_ptr;
is_write = FIELD_EX32(desc, MTEDESC, WRITE);
syn = syn_data_abort_no_iss(arm_current_el(env) != 0, 0, 0, 0, 0, is_write,
0x11);
raise_exception_ra(env, EXCP_DATA_ABORT, syn, exception_target_el(env), ra);
g_assert_not_reached();
}
static void mte_async_check_fail(CPUARMState *env, uint64_t dirty_ptr,
uintptr_t ra, ARMMMUIdx arm_mmu_idx, int el)
{
int select;
if (regime_has_2_ranges(arm_mmu_idx)) {
select = extract64(dirty_ptr, 55, 1);
} else {
select = 0;
}
env->cp15.tfsr_el[el] |= 1 << select;
#ifdef CONFIG_USER_ONLY
/*
* Stand in for a timer irq, setting _TIF_MTE_ASYNC_FAULT,
* which then sends a SIGSEGV when the thread is next scheduled.
* This cpu will return to the main loop at the end of the TB,
* which is rather sooner than "normal". But the alternative
* is waiting until the next syscall.
*/
qemu_cpu_kick(env_cpu(env));
#endif
}
/* Record a tag check failure. */
static void mte_check_fail(CPUARMState *env, uint32_t desc,
uint64_t dirty_ptr, uintptr_t ra)
{
int mmu_idx = FIELD_EX32(desc, MTEDESC, MIDX);
ARMMMUIdx arm_mmu_idx = core_to_aa64_mmu_idx(mmu_idx);
int el, reg_el, tcf, select, is_write, syn;
int el, reg_el, tcf;
uint64_t sctlr;
reg_el = regime_el(env, arm_mmu_idx);
@ -564,14 +601,8 @@ static void mte_check_fail(CPUARMState *env, uint32_t desc,
switch (tcf) {
case 1:
/* Tag check fail causes a synchronous exception. */
env->exception.vaddress = dirty_ptr;
is_write = FIELD_EX32(desc, MTEDESC, WRITE);
syn = syn_data_abort_no_iss(arm_current_el(env) != 0, 0, 0, 0, 0,
is_write, 0x11);
raise_exception_ra(env, EXCP_DATA_ABORT, syn,
exception_target_el(env), ra);
/* noreturn, but fall through to the assert anyway */
mte_sync_check_fail(env, desc, dirty_ptr, ra);
break;
case 0:
/*
@ -583,30 +614,19 @@ static void mte_check_fail(CPUARMState *env, uint32_t desc,
case 2:
/* Tag check fail causes asynchronous flag set. */
if (regime_has_2_ranges(arm_mmu_idx)) {
select = extract64(dirty_ptr, 55, 1);
} else {
select = 0;
}
env->cp15.tfsr_el[el] |= 1 << select;
#ifdef CONFIG_USER_ONLY
/*
* Stand in for a timer irq, setting _TIF_MTE_ASYNC_FAULT,
* which then sends a SIGSEGV when the thread is next scheduled.
* This cpu will return to the main loop at the end of the TB,
* which is rather sooner than "normal". But the alternative
* is waiting until the next syscall.
*/
qemu_cpu_kick(env_cpu(env));
#endif
mte_async_check_fail(env, dirty_ptr, ra, arm_mmu_idx, el);
break;
default:
/* Case 3: Reserved. */
qemu_log_mask(LOG_GUEST_ERROR,
"Tag check failure with SCTLR_EL%d.TCF%s "
"set to reserved value %d\n",
reg_el, el ? "" : "0", tcf);
case 3:
/*
* Tag check fail causes asynchronous flag set for stores, or
* a synchronous exception for loads.
*/
if (FIELD_EX32(desc, MTEDESC, WRITE)) {
mte_async_check_fail(env, dirty_ptr, ra, arm_mmu_idx, el);
} else {
mte_sync_check_fail(env, desc, dirty_ptr, ra);
}
break;
}
}

240
target/arm/mve.decode
View File

@ -18,3 +18,243 @@
#
# This file is processed by scripts/decodetree.py
#
%qd 22:1 13:3
%qm 5:1 1:3
%qn 7:1 17:3
# VQDMULL has size in bit 28: 0 for 16 bit, 1 for 32 bit
%size_28 28:1 !function=plus_1
&vldr_vstr rn qd imm p a w size l u
&1op qd qm size
&2op qd qm qn size
&2scalar qd qn rm size
@vldr_vstr ....... . . . . l:1 rn:4 ... ...... imm:7 &vldr_vstr qd=%qd u=0
# Note that both Rn and Qd are 3 bits only (no D bit)
@vldst_wn ... u:1 ... . . . . l:1 . rn:3 qd:3 . ... .. imm:7 &vldr_vstr
@1op .... .... .... size:2 .. .... .... .... .... &1op qd=%qd qm=%qm
@1op_nosz .... .... .... .... .... .... .... .... &1op qd=%qd qm=%qm size=0
@2op .... .... .. size:2 .... .... .... .... .... &2op qd=%qd qm=%qm qn=%qn
@2op_nosz .... .... .... .... .... .... .... .... &2op qd=%qd qm=%qm qn=%qn size=0
@2op_sz28 .... .... .... .... .... .... .... .... &2op qd=%qd qm=%qm qn=%qn \
size=%size_28
# The _rev suffix indicates that Vn and Vm are reversed. This is
# the case for shifts. In the Arm ARM these insns are documented
# with the Vm and Vn fields in their usual places, but in the
# assembly the operands are listed "backwards", ie in the order
# Qd, Qm, Qn where other insns use Qd, Qn, Qm. For QEMU we choose
# to consider Vm and Vn as being in different fields in the insn.
# This gives us consistency with A64 and Neon.
@2op_rev .... .... .. size:2 .... .... .... .... .... &2op qd=%qd qm=%qn qn=%qm
@2scalar .... .... .. size:2 .... .... .... .... rm:4 &2scalar qd=%qd qn=%qn
@2scalar_nosz .... .... .... .... .... .... .... rm:4 &2scalar qd=%qd qn=%qn
# Vector loads and stores
# Widening loads and narrowing stores:
# for these P=0 W=0 is 'related encoding'; sz=11 is 'related encoding'
# This means we need to expand out to multiple patterns for P, W, SZ.
# For stores the U bit must be 0 but we catch that in the trans_ function.
# The naming scheme here is "VLDSTB_H == in-memory byte load/store to/from
# signed halfword element in register", etc.
VLDSTB_H 111 . 110 0 a:1 0 1 . 0 ... ... 0 111 01 ....... @vldst_wn \
p=0 w=1 size=1
VLDSTB_H 111 . 110 1 a:1 0 w:1 . 0 ... ... 0 111 01 ....... @vldst_wn \
p=1 size=1
VLDSTB_W 111 . 110 0 a:1 0 1 . 0 ... ... 0 111 10 ....... @vldst_wn \
p=0 w=1 size=2
VLDSTB_W 111 . 110 1 a:1 0 w:1 . 0 ... ... 0 111 10 ....... @vldst_wn \
p=1 size=2
VLDSTH_W 111 . 110 0 a:1 0 1 . 1 ... ... 0 111 10 ....... @vldst_wn \
p=0 w=1 size=2
VLDSTH_W 111 . 110 1 a:1 0 w:1 . 1 ... ... 0 111 10 ....... @vldst_wn \
p=1 size=2
# Non-widening loads/stores (P=0 W=0 is 'related encoding')
VLDR_VSTR 1110110 0 a:1 . 1 . .... ... 111100 ....... @vldr_vstr \
size=0 p=0 w=1
VLDR_VSTR 1110110 0 a:1 . 1 . .... ... 111101 ....... @vldr_vstr \
size=1 p=0 w=1
VLDR_VSTR 1110110 0 a:1 . 1 . .... ... 111110 ....... @vldr_vstr \
size=2 p=0 w=1
VLDR_VSTR 1110110 1 a:1 . w:1 . .... ... 111100 ....... @vldr_vstr \
size=0 p=1
VLDR_VSTR 1110110 1 a:1 . w:1 . .... ... 111101 ....... @vldr_vstr \
size=1 p=1
VLDR_VSTR 1110110 1 a:1 . w:1 . .... ... 111110 ....... @vldr_vstr \
size=2 p=1
# Vector 2-op
VAND 1110 1111 0 . 00 ... 0 ... 0 0001 . 1 . 1 ... 0 @2op_nosz
VBIC 1110 1111 0 . 01 ... 0 ... 0 0001 . 1 . 1 ... 0 @2op_nosz
VORR 1110 1111 0 . 10 ... 0 ... 0 0001 . 1 . 1 ... 0 @2op_nosz
VORN 1110 1111 0 . 11 ... 0 ... 0 0001 . 1 . 1 ... 0 @2op_nosz
VEOR 1111 1111 0 . 00 ... 0 ... 0 0001 . 1 . 1 ... 0 @2op_nosz
VADD 1110 1111 0 . .. ... 0 ... 0 1000 . 1 . 0 ... 0 @2op
VSUB 1111 1111 0 . .. ... 0 ... 0 1000 . 1 . 0 ... 0 @2op
VMUL 1110 1111 0 . .. ... 0 ... 0 1001 . 1 . 1 ... 0 @2op
VMULH_S 111 0 1110 0 . .. ...1 ... 0 1110 . 0 . 0 ... 1 @2op
VMULH_U 111 1 1110 0 . .. ...1 ... 0 1110 . 0 . 0 ... 1 @2op
VRMULH_S 111 0 1110 0 . .. ...1 ... 1 1110 . 0 . 0 ... 1 @2op
VRMULH_U 111 1 1110 0 . .. ...1 ... 1 1110 . 0 . 0 ... 1 @2op
VMAX_S 111 0 1111 0 . .. ... 0 ... 0 0110 . 1 . 0 ... 0 @2op
VMAX_U 111 1 1111 0 . .. ... 0 ... 0 0110 . 1 . 0 ... 0 @2op
VMIN_S 111 0 1111 0 . .. ... 0 ... 0 0110 . 1 . 1 ... 0 @2op
VMIN_U 111 1 1111 0 . .. ... 0 ... 0 0110 . 1 . 1 ... 0 @2op
VABD_S 111 0 1111 0 . .. ... 0 ... 0 0111 . 1 . 0 ... 0 @2op
VABD_U 111 1 1111 0 . .. ... 0 ... 0 0111 . 1 . 0 ... 0 @2op
VHADD_S 111 0 1111 0 . .. ... 0 ... 0 0000 . 1 . 0 ... 0 @2op
VHADD_U 111 1 1111 0 . .. ... 0 ... 0 0000 . 1 . 0 ... 0 @2op
VHSUB_S 111 0 1111 0 . .. ... 0 ... 0 0010 . 1 . 0 ... 0 @2op
VHSUB_U 111 1 1111 0 . .. ... 0 ... 0 0010 . 1 . 0 ... 0 @2op
VMULL_BS 111 0 1110 0 . .. ... 1 ... 0 1110 . 0 . 0 ... 0 @2op
VMULL_BU 111 1 1110 0 . .. ... 1 ... 0 1110 . 0 . 0 ... 0 @2op
VMULL_TS 111 0 1110 0 . .. ... 1 ... 1 1110 . 0 . 0 ... 0 @2op
VMULL_TU 111 1 1110 0 . .. ... 1 ... 1 1110 . 0 . 0 ... 0 @2op
VQDMULH 1110 1111 0 . .. ... 0 ... 0 1011 . 1 . 0 ... 0 @2op
VQRDMULH 1111 1111 0 . .. ... 0 ... 0 1011 . 1 . 0 ... 0 @2op
VQADD_S 111 0 1111 0 . .. ... 0 ... 0 0000 . 1 . 1 ... 0 @2op
VQADD_U 111 1 1111 0 . .. ... 0 ... 0 0000 . 1 . 1 ... 0 @2op
VQSUB_S 111 0 1111 0 . .. ... 0 ... 0 0010 . 1 . 1 ... 0 @2op
VQSUB_U 111 1 1111 0 . .. ... 0 ... 0 0010 . 1 . 1 ... 0 @2op
VSHL_S 111 0 1111 0 . .. ... 0 ... 0 0100 . 1 . 0 ... 0 @2op_rev
VSHL_U 111 1 1111 0 . .. ... 0 ... 0 0100 . 1 . 0 ... 0 @2op_rev
VRSHL_S 111 0 1111 0 . .. ... 0 ... 0 0101 . 1 . 0 ... 0 @2op_rev
VRSHL_U 111 1 1111 0 . .. ... 0 ... 0 0101 . 1 . 0 ... 0 @2op_rev
VQSHL_S 111 0 1111 0 . .. ... 0 ... 0 0100 . 1 . 1 ... 0 @2op_rev
VQSHL_U 111 1 1111 0 . .. ... 0 ... 0 0100 . 1 . 1 ... 0 @2op_rev
VQRSHL_S 111 0 1111 0 . .. ... 0 ... 0 0101 . 1 . 1 ... 0 @2op_rev
VQRSHL_U 111 1 1111 0 . .. ... 0 ... 0 0101 . 1 . 1 ... 0 @2op_rev
VQDMLADH 1110 1110 0 . .. ... 0 ... 0 1110 . 0 . 0 ... 0 @2op
VQDMLADHX 1110 1110 0 . .. ... 0 ... 1 1110 . 0 . 0 ... 0 @2op
VQRDMLADH 1110 1110 0 . .. ... 0 ... 0 1110 . 0 . 0 ... 1 @2op
VQRDMLADHX 1110 1110 0 . .. ... 0 ... 1 1110 . 0 . 0 ... 1 @2op
VQDMLSDH 1111 1110 0 . .. ... 0 ... 0 1110 . 0 . 0 ... 0 @2op
VQDMLSDHX 1111 1110 0 . .. ... 0 ... 1 1110 . 0 . 0 ... 0 @2op
VQRDMLSDH 1111 1110 0 . .. ... 0 ... 0 1110 . 0 . 0 ... 1 @2op
VQRDMLSDHX 1111 1110 0 . .. ... 0 ... 1 1110 . 0 . 0 ... 1 @2op
VQDMULLB 111 . 1110 0 . 11 ... 0 ... 0 1111 . 0 . 0 ... 1 @2op_sz28
VQDMULLT 111 . 1110 0 . 11 ... 0 ... 1 1111 . 0 . 0 ... 1 @2op_sz28
VRHADD_S 111 0 1111 0 . .. ... 0 ... 0 0001 . 1 . 0 ... 0 @2op
VRHADD_U 111 1 1111 0 . .. ... 0 ... 0 0001 . 1 . 0 ... 0 @2op
{
VADC 1110 1110 0 . 11 ... 0 ... 0 1111 . 0 . 0 ... 0 @2op_nosz
VADCI 1110 1110 0 . 11 ... 0 ... 1 1111 . 0 . 0 ... 0 @2op_nosz
VHCADD90 1110 1110 0 . .. ... 0 ... 0 1111 . 0 . 0 ... 0 @2op
VHCADD270 1110 1110 0 . .. ... 0 ... 1 1111 . 0 . 0 ... 0 @2op
}
{
VSBC 1111 1110 0 . 11 ... 0 ... 0 1111 . 0 . 0 ... 0 @2op_nosz
VSBCI 1111 1110 0 . 11 ... 0 ... 1 1111 . 0 . 0 ... 0 @2op_nosz
VCADD90 1111 1110 0 . .. ... 0 ... 0 1111 . 0 . 0 ... 0 @2op
VCADD270 1111 1110 0 . .. ... 0 ... 1 1111 . 0 . 0 ... 0 @2op
}
# Vector miscellaneous
VCLS 1111 1111 1 . 11 .. 00 ... 0 0100 01 . 0 ... 0 @1op
VCLZ 1111 1111 1 . 11 .. 00 ... 0 0100 11 . 0 ... 0 @1op
VREV16 1111 1111 1 . 11 .. 00 ... 0 0001 01 . 0 ... 0 @1op
VREV32 1111 1111 1 . 11 .. 00 ... 0 0000 11 . 0 ... 0 @1op
VREV64 1111 1111 1 . 11 .. 00 ... 0 0000 01 . 0 ... 0 @1op
VMVN 1111 1111 1 . 11 00 00 ... 0 0101 11 . 0 ... 0 @1op_nosz
VABS 1111 1111 1 . 11 .. 01 ... 0 0011 01 . 0 ... 0 @1op
VABS_fp 1111 1111 1 . 11 .. 01 ... 0 0111 01 . 0 ... 0 @1op
VNEG 1111 1111 1 . 11 .. 01 ... 0 0011 11 . 0 ... 0 @1op
VNEG_fp 1111 1111 1 . 11 .. 01 ... 0 0111 11 . 0 ... 0 @1op
&vdup qd rt size
# Qd is in the fields usually named Qn
@vdup .... .... . . .. ... . rt:4 .... . . . . .... qd=%qn &vdup
# B and E bits encode size, which we decode here to the usual size values
VDUP 1110 1110 1 1 10 ... 0 .... 1011 . 0 0 1 0000 @vdup size=0
VDUP 1110 1110 1 0 10 ... 0 .... 1011 . 0 1 1 0000 @vdup size=1
VDUP 1110 1110 1 0 10 ... 0 .... 1011 . 0 0 1 0000 @vdup size=2
# multiply-add long dual accumulate
# rdahi: bits [3:1] from insn, bit 0 is 1
# rdalo: bits [3:1] from insn, bit 0 is 0
%rdahi 20:3 !function=times_2_plus_1
%rdalo 13:3 !function=times_2
# size bit is 0 for 16 bit, 1 for 32 bit
%size_16 16:1 !function=plus_1
&vmlaldav rdahi rdalo size qn qm x a
@vmlaldav .... .... . ... ... . ... . .... .... qm:3 . \
qn=%qn rdahi=%rdahi rdalo=%rdalo size=%size_16 &vmlaldav
@vmlaldav_nosz .... .... . ... ... . ... . .... .... qm:3 . \
qn=%qn rdahi=%rdahi rdalo=%rdalo size=0 &vmlaldav
VMLALDAV_S 1110 1110 1 ... ... . ... x:1 1110 . 0 a:1 0 ... 0 @vmlaldav
VMLALDAV_U 1111 1110 1 ... ... . ... x:1 1110 . 0 a:1 0 ... 0 @vmlaldav
VMLSLDAV 1110 1110 1 ... ... . ... x:1 1110 . 0 a:1 0 ... 1 @vmlaldav
VRMLALDAVH_S 1110 1110 1 ... ... 0 ... x:1 1111 . 0 a:1 0 ... 0 @vmlaldav_nosz
VRMLALDAVH_U 1111 1110 1 ... ... 0 ... x:1 1111 . 0 a:1 0 ... 0 @vmlaldav_nosz
VRMLSLDAVH 1111 1110 1 ... ... 0 ... x:1 1110 . 0 a:1 0 ... 1 @vmlaldav_nosz
# Scalar operations
VADD_scalar 1110 1110 0 . .. ... 1 ... 0 1111 . 100 .... @2scalar
VSUB_scalar 1110 1110 0 . .. ... 1 ... 1 1111 . 100 .... @2scalar
VMUL_scalar 1110 1110 0 . .. ... 1 ... 1 1110 . 110 .... @2scalar
VHADD_S_scalar 1110 1110 0 . .. ... 0 ... 0 1111 . 100 .... @2scalar
VHADD_U_scalar 1111 1110 0 . .. ... 0 ... 0 1111 . 100 .... @2scalar
VHSUB_S_scalar 1110 1110 0 . .. ... 0 ... 1 1111 . 100 .... @2scalar
VHSUB_U_scalar 1111 1110 0 . .. ... 0 ... 1 1111 . 100 .... @2scalar
{
VQADD_S_scalar 1110 1110 0 . .. ... 0 ... 0 1111 . 110 .... @2scalar
VQADD_U_scalar 1111 1110 0 . .. ... 0 ... 0 1111 . 110 .... @2scalar
VQDMULLB_scalar 111 . 1110 0 . 11 ... 0 ... 0 1111 . 110 .... @2scalar_nosz \
size=%size_28
}
{
VQSUB_S_scalar 1110 1110 0 . .. ... 0 ... 1 1111 . 110 .... @2scalar
VQSUB_U_scalar 1111 1110 0 . .. ... 0 ... 1 1111 . 110 .... @2scalar
VQDMULLT_scalar 111 . 1110 0 . 11 ... 0 ... 1 1111 . 110 .... @2scalar_nosz \
size=%size_28
}
VBRSR 1111 1110 0 . .. ... 1 ... 1 1110 . 110 .... @2scalar
VQDMULH_scalar 1110 1110 0 . .. ... 1 ... 0 1110 . 110 .... @2scalar
VQRDMULH_scalar 1111 1110 0 . .. ... 1 ... 0 1110 . 110 .... @2scalar
# Vector add across vector
VADDV 111 u:1 1110 1111 size:2 01 ... 0 1111 0 0 a:1 0 qm:3 0 rda=%rdalo
# Predicate operations
%mask_22_13 22:1 13:3
VPST 1111 1110 0 . 11 000 1 ... 0 1111 0100 1101 mask=%mask_22_13

1160
target/arm/mve_helper.c Normal file
View File

File diff suppressed because it is too large Load Diff

3
target/arm/translate-a32.h
View File

@ -32,6 +32,7 @@ bool disas_neon_shared(DisasContext *s, uint32_t insn);
void load_reg_var(DisasContext *s, TCGv_i32 var, int reg);
void arm_gen_condlabel(DisasContext *s);
bool vfp_access_check(DisasContext *s);
bool vfp_access_check_m(DisasContext *s, bool skip_context_update);
void read_neon_element32(TCGv_i32 dest, int reg, int ele, MemOp memop);
void read_neon_element64(TCGv_i64 dest, int reg, int ele, MemOp memop);
void write_neon_element32(TCGv_i32 src, int reg, int ele, MemOp memop);
@ -46,6 +47,8 @@ long neon_full_reg_offset(unsigned reg);
long neon_element_offset(int reg, int element, MemOp memop);
void gen_rev16(TCGv_i32 dest, TCGv_i32 var);
void clear_eci_state(DisasContext *s);
bool mve_eci_check(DisasContext *s);
void mve_update_and_store_eci(DisasContext *s);
static inline TCGv_i32 load_cpu_offset(int offset)
{

550
target/arm/translate-m-nocp.c
View File

@ -19,6 +19,7 @@
#include "qemu/osdep.h"
#include "tcg/tcg-op.h"
#include "tcg/tcg-op-gvec.h"
#include "translate.h"
#include "translate-a32.h"
@ -191,6 +192,555 @@ static bool trans_VSCCLRM(DisasContext *s, arg_VSCCLRM *a)
return true;
}
/*
* M-profile provides two different sets of instructions that can
* access floating point system registers: VMSR/VMRS (which move
* to/from a general purpose register) and VLDR/VSTR sysreg (which
* move directly to/from memory). In some cases there are also side
* effects which must happen after any write to memory (which could
* cause an exception). So we implement the common logic for the
* sysreg access in gen_M_fp_sysreg_write() and gen_M_fp_sysreg_read(),
* which take pointers to callback functions which will perform the
* actual "read/write general purpose register" and "read/write
* memory" operations.
*/
/*
* Emit code to store the sysreg to its final destination; frees the
* TCG temp 'value' it is passed. do_access is true to do the store,
* and false to skip it and only perform side-effects like base
* register writeback.
*/
typedef void fp_sysreg_storefn(DisasContext *s, void *opaque, TCGv_i32 value,
bool do_access);
/*
* Emit code to load the value to be copied to the sysreg; returns
* a new TCG temporary. do_access is true to do the store,
* and false to skip it and only perform side-effects like base
* register writeback.
*/
typedef TCGv_i32 fp_sysreg_loadfn(DisasContext *s, void *opaque,
bool do_access);
/* Common decode/access checks for fp sysreg read/write */
typedef enum FPSysRegCheckResult {
FPSysRegCheckFailed, /* caller should return false */
FPSysRegCheckDone, /* caller should return true */
FPSysRegCheckContinue, /* caller should continue generating code */
} FPSysRegCheckResult;
static FPSysRegCheckResult fp_sysreg_checks(DisasContext *s, int regno)
{
if (!dc_isar_feature(aa32_fpsp_v2, s) && !dc_isar_feature(aa32_mve, s)) {
return FPSysRegCheckFailed;
}
switch (regno) {
case ARM_VFP_FPSCR:
case QEMU_VFP_FPSCR_NZCV:
break;
case ARM_VFP_FPSCR_NZCVQC:
if (!arm_dc_feature(s, ARM_FEATURE_V8_1M)) {
return FPSysRegCheckFailed;
}
break;
case ARM_VFP_FPCXT_S:
case ARM_VFP_FPCXT_NS:
if (!arm_dc_feature(s, ARM_FEATURE_V8_1M)) {
return FPSysRegCheckFailed;
}
if (!s->v8m_secure) {
return FPSysRegCheckFailed;
}
break;
case ARM_VFP_VPR:
case ARM_VFP_P0:
if (!dc_isar_feature(aa32_mve, s)) {
return FPSysRegCheckFailed;
}
break;
default:
return FPSysRegCheckFailed;
}
/*
* FPCXT_NS is a special case: it has specific handling for
* "current FP state is inactive", and must do the PreserveFPState()
* but not the usual full set of actions done by ExecuteFPCheck().
* So we don't call vfp_access_check() and the callers must handle this.
*/
if (regno != ARM_VFP_FPCXT_NS && !vfp_access_check(s)) {
return FPSysRegCheckDone;
}
return FPSysRegCheckContinue;
}
static void gen_branch_fpInactive(DisasContext *s, TCGCond cond,
TCGLabel *label)
{
/*
* FPCXT_NS is a special case: it has specific handling for
* "current FP state is inactive", and must do the PreserveFPState()
* but not the usual full set of actions done by ExecuteFPCheck().
* We don't have a TB flag that matches the fpInactive check, so we
* do it at runtime as we don't expect FPCXT_NS accesses to be frequent.
*
* Emit code that checks fpInactive and does a conditional
* branch to label based on it:
* if cond is TCG_COND_NE then branch if fpInactive != 0 (ie if inactive)
* if cond is TCG_COND_EQ then branch if fpInactive == 0 (ie if active)
*/
assert(cond == TCG_COND_EQ || cond == TCG_COND_NE);
/* fpInactive = FPCCR_NS.ASPEN == 1 && CONTROL.FPCA == 0 */
TCGv_i32 aspen, fpca;
aspen = load_cpu_field(v7m.fpccr[M_REG_NS]);
fpca = load_cpu_field(v7m.control[M_REG_S]);
tcg_gen_andi_i32(aspen, aspen, R_V7M_FPCCR_ASPEN_MASK);
tcg_gen_xori_i32(aspen, aspen, R_V7M_FPCCR_ASPEN_MASK);
tcg_gen_andi_i32(fpca, fpca, R_V7M_CONTROL_FPCA_MASK);
tcg_gen_or_i32(fpca, fpca, aspen);
tcg_gen_brcondi_i32(tcg_invert_cond(cond), fpca, 0, label);
tcg_temp_free_i32(aspen);
tcg_temp_free_i32(fpca);
}
static bool gen_M_fp_sysreg_write(DisasContext *s, int regno,
fp_sysreg_loadfn *loadfn,
void *opaque)
{
/* Do a write to an M-profile floating point system register */
TCGv_i32 tmp;
TCGLabel *lab_end = NULL;
switch (fp_sysreg_checks(s, regno)) {
case FPSysRegCheckFailed:
return false;
case FPSysRegCheckDone:
return true;
case FPSysRegCheckContinue:
break;
}
switch (regno) {
case ARM_VFP_FPSCR:
tmp = loadfn(s, opaque, true);
gen_helper_vfp_set_fpscr(cpu_env, tmp);
tcg_temp_free_i32(tmp);
gen_lookup_tb(s);
break;
case ARM_VFP_FPSCR_NZCVQC:
{
TCGv_i32 fpscr;
tmp = loadfn(s, opaque, true);
if (dc_isar_feature(aa32_mve, s)) {
/* QC is only present for MVE; otherwise RES0 */
TCGv_i32 qc = tcg_temp_new_i32();
tcg_gen_andi_i32(qc, tmp, FPCR_QC);
/*
* The 4 vfp.qc[] fields need only be "zero" vs "non-zero";
* here writing the same value into all elements is simplest.
*/
tcg_gen_gvec_dup_i32(MO_32, offsetof(CPUARMState, vfp.qc),
16, 16, qc);
}
tcg_gen_andi_i32(tmp, tmp, FPCR_NZCV_MASK);
fpscr = load_cpu_field(vfp.xregs[ARM_VFP_FPSCR]);
tcg_gen_andi_i32(fpscr, fpscr, ~FPCR_NZCV_MASK);
tcg_gen_or_i32(fpscr, fpscr, tmp);
store_cpu_field(fpscr, vfp.xregs[ARM_VFP_FPSCR]);
tcg_temp_free_i32(tmp);
break;
}
case ARM_VFP_FPCXT_NS:
{
TCGLabel *lab_active = gen_new_label();
lab_end = gen_new_label();
gen_branch_fpInactive(s, TCG_COND_EQ, lab_active);
/*
* fpInactive case: write is a NOP, so only do side effects
* like register writeback before we branch to end
*/
loadfn(s, opaque, false);
tcg_gen_br(lab_end);
gen_set_label(lab_active);
/*
* !fpInactive: if FPU disabled, take NOCP exception;
* otherwise PreserveFPState(), and then FPCXT_NS writes
* behave the same as FPCXT_S writes.
*/
if (!vfp_access_check_m(s, true)) {
/*
* This was only a conditional exception, so override
* gen_exception_insn()'s default to DISAS_NORETURN
*/
s->base.is_jmp = DISAS_NEXT;
break;
}
}
/* fall through */
case ARM_VFP_FPCXT_S:
{
TCGv_i32 sfpa, control;
/*
* Set FPSCR and CONTROL.SFPA from value; the new FPSCR takes
* bits [27:0] from value and zeroes bits [31:28].
*/
tmp = loadfn(s, opaque, true);
sfpa = tcg_temp_new_i32();
tcg_gen_shri_i32(sfpa, tmp, 31);
control = load_cpu_field(v7m.control[M_REG_S]);
tcg_gen_deposit_i32(control, control, sfpa,
R_V7M_CONTROL_SFPA_SHIFT, 1);
store_cpu_field(control, v7m.control[M_REG_S]);
tcg_gen_andi_i32(tmp, tmp, ~FPCR_NZCV_MASK);
gen_helper_vfp_set_fpscr(cpu_env, tmp);
tcg_temp_free_i32(tmp);
tcg_temp_free_i32(sfpa);
break;
}
case ARM_VFP_VPR:
/* Behaves as NOP if not privileged */
if (IS_USER(s)) {
loadfn(s, opaque, false);
break;
}
tmp = loadfn(s, opaque, true);
store_cpu_field(tmp, v7m.vpr);
break;
case ARM_VFP_P0:
{
TCGv_i32 vpr;
tmp = loadfn(s, opaque, true);
vpr = load_cpu_field(v7m.vpr);
tcg_gen_deposit_i32(vpr, vpr, tmp,
R_V7M_VPR_P0_SHIFT, R_V7M_VPR_P0_LENGTH);
store_cpu_field(vpr, v7m.vpr);
tcg_temp_free_i32(tmp);
break;
}
default:
g_assert_not_reached();
}
if (lab_end) {
gen_set_label(lab_end);
}
return true;
}
static bool gen_M_fp_sysreg_read(DisasContext *s, int regno,
fp_sysreg_storefn *storefn,
void *opaque)
{
/* Do a read from an M-profile floating point system register */
TCGv_i32 tmp;
TCGLabel *lab_end = NULL;
bool lookup_tb = false;
switch (fp_sysreg_checks(s, regno)) {
case FPSysRegCheckFailed:
return false;
case FPSysRegCheckDone:
return true;
case FPSysRegCheckContinue:
break;
}
if (regno == ARM_VFP_FPSCR_NZCVQC && !dc_isar_feature(aa32_mve, s)) {
/* QC is RES0 without MVE, so NZCVQC simplifies to NZCV */
regno = QEMU_VFP_FPSCR_NZCV;
}
switch (regno) {
case ARM_VFP_FPSCR:
tmp = tcg_temp_new_i32();
gen_helper_vfp_get_fpscr(tmp, cpu_env);
storefn(s, opaque, tmp, true);
break;
case ARM_VFP_FPSCR_NZCVQC:
tmp = tcg_temp_new_i32();
gen_helper_vfp_get_fpscr(tmp, cpu_env);
tcg_gen_andi_i32(tmp, tmp, FPCR_NZCVQC_MASK);
storefn(s, opaque, tmp, true);
break;
case QEMU_VFP_FPSCR_NZCV:
/*
* Read just NZCV; this is a special case to avoid the
* helper call for the "VMRS to CPSR.NZCV" insn.
*/
tmp = load_cpu_field(vfp.xregs[ARM_VFP_FPSCR]);
tcg_gen_andi_i32(tmp, tmp, FPCR_NZCV_MASK);
storefn(s, opaque, tmp, true);
break;
case ARM_VFP_FPCXT_S:
{
TCGv_i32 control, sfpa, fpscr;
/* Bits [27:0] from FPSCR, bit [31] from CONTROL.SFPA */
tmp = tcg_temp_new_i32();
sfpa = tcg_temp_new_i32();
gen_helper_vfp_get_fpscr(tmp, cpu_env);
tcg_gen_andi_i32(tmp, tmp, ~FPCR_NZCV_MASK);
control = load_cpu_field(v7m.control[M_REG_S]);
tcg_gen_andi_i32(sfpa, control, R_V7M_CONTROL_SFPA_MASK);
tcg_gen_shli_i32(sfpa, sfpa, 31 - R_V7M_CONTROL_SFPA_SHIFT);
tcg_gen_or_i32(tmp, tmp, sfpa);
tcg_temp_free_i32(sfpa);
/*
* Store result before updating FPSCR etc, in case
* it is a memory write which causes an exception.
*/
storefn(s, opaque, tmp, true);
/*
* Now we must reset FPSCR from FPDSCR_NS, and clear
* CONTROL.SFPA; so we'll end the TB here.
*/
tcg_gen_andi_i32(control, control, ~R_V7M_CONTROL_SFPA_MASK);
store_cpu_field(control, v7m.control[M_REG_S]);
fpscr = load_cpu_field(v7m.fpdscr[M_REG_NS]);
gen_helper_vfp_set_fpscr(cpu_env, fpscr);
tcg_temp_free_i32(fpscr);
lookup_tb = true;
break;
}
case ARM_VFP_FPCXT_NS:
{
TCGv_i32 control, sfpa, fpscr, fpdscr, zero;
TCGLabel *lab_active = gen_new_label();
lookup_tb = true;
gen_branch_fpInactive(s, TCG_COND_EQ, lab_active);
/* fpInactive case: reads as FPDSCR_NS */
TCGv_i32 tmp = load_cpu_field(v7m.fpdscr[M_REG_NS]);
storefn(s, opaque, tmp, true);
lab_end = gen_new_label();
tcg_gen_br(lab_end);
gen_set_label(lab_active);
/*
* !fpInactive: if FPU disabled, take NOCP exception;
* otherwise PreserveFPState(), and then FPCXT_NS
* reads the same as FPCXT_S.
*/
if (!vfp_access_check_m(s, true)) {
/*
* This was only a conditional exception, so override
* gen_exception_insn()'s default to DISAS_NORETURN
*/
s->base.is_jmp = DISAS_NEXT;
break;
}
tmp = tcg_temp_new_i32();
sfpa = tcg_temp_new_i32();
fpscr = tcg_temp_new_i32();
gen_helper_vfp_get_fpscr(fpscr, cpu_env);
tcg_gen_andi_i32(tmp, fpscr, ~FPCR_NZCV_MASK);
control = load_cpu_field(v7m.control[M_REG_S]);
tcg_gen_andi_i32(sfpa, control, R_V7M_CONTROL_SFPA_MASK);
tcg_gen_shli_i32(sfpa, sfpa, 31 - R_V7M_CONTROL_SFPA_SHIFT);
tcg_gen_or_i32(tmp, tmp, sfpa);
tcg_temp_free_i32(control);
/* Store result before updating FPSCR, in case it faults */
storefn(s, opaque, tmp, true);
/* If SFPA is zero then set FPSCR from FPDSCR_NS */
fpdscr = load_cpu_field(v7m.fpdscr[M_REG_NS]);
zero = tcg_const_i32(0);
tcg_gen_movcond_i32(TCG_COND_EQ, fpscr, sfpa, zero, fpdscr, fpscr);
gen_helper_vfp_set_fpscr(cpu_env, fpscr);
tcg_temp_free_i32(zero);
tcg_temp_free_i32(sfpa);
tcg_temp_free_i32(fpdscr);
tcg_temp_free_i32(fpscr);
break;
}
case ARM_VFP_VPR:
/* Behaves as NOP if not privileged */
if (IS_USER(s)) {
storefn(s, opaque, NULL, false);
break;
}
tmp = load_cpu_field(v7m.vpr);
storefn(s, opaque, tmp, true);
break;
case ARM_VFP_P0:
tmp = load_cpu_field(v7m.vpr);
tcg_gen_extract_i32(tmp, tmp, R_V7M_VPR_P0_SHIFT, R_V7M_VPR_P0_LENGTH);
storefn(s, opaque, tmp, true);
break;
default:
g_assert_not_reached();
}
if (lab_end) {
gen_set_label(lab_end);
}
if (lookup_tb) {
gen_lookup_tb(s);
}
return true;
}
static void fp_sysreg_to_gpr(DisasContext *s, void *opaque, TCGv_i32 value,
bool do_access)
{
arg_VMSR_VMRS *a = opaque;
if (!do_access) {
return;
}
if (a->rt == 15) {
/* Set the 4 flag bits in the CPSR */
gen_set_nzcv(value);
tcg_temp_free_i32(value);
} else {
store_reg(s, a->rt, value);
}
}
static TCGv_i32 gpr_to_fp_sysreg(DisasContext *s, void *opaque, bool do_access)
{
arg_VMSR_VMRS *a = opaque;
if (!do_access) {
return NULL;
}
return load_reg(s, a->rt);
}
static bool trans_VMSR_VMRS(DisasContext *s, arg_VMSR_VMRS *a)
{
/*
* Accesses to R15 are UNPREDICTABLE; we choose to undef.
* FPSCR -> r15 is a special case which writes to the PSR flags;
* set a->reg to a special value to tell gen_M_fp_sysreg_read()
* we only care about the top 4 bits of FPSCR there.
*/
if (a->rt == 15) {
if (a->l && a->reg == ARM_VFP_FPSCR) {
a->reg = QEMU_VFP_FPSCR_NZCV;
} else {
return false;
}
}
if (a->l) {
/* VMRS, move FP system register to gp register */
return gen_M_fp_sysreg_read(s, a->reg, fp_sysreg_to_gpr, a);
} else {
/* VMSR, move gp register to FP system register */
return gen_M_fp_sysreg_write(s, a->reg, gpr_to_fp_sysreg, a);
}
}
static void fp_sysreg_to_memory(DisasContext *s, void *opaque, TCGv_i32 value,
bool do_access)
{
arg_vldr_sysreg *a = opaque;
uint32_t offset = a->imm;
TCGv_i32 addr;
if (!a->a) {
offset = -offset;
}
if (!do_access && !a->w) {
return;
}
addr = load_reg(s, a->rn);
if (a->p) {
tcg_gen_addi_i32(addr, addr, offset);
}
if (s->v8m_stackcheck && a->rn == 13 && a->w) {
gen_helper_v8m_stackcheck(cpu_env, addr);
}
if (do_access) {
gen_aa32_st_i32(s, value, addr, get_mem_index(s),
MO_UL | MO_ALIGN | s->be_data);
tcg_temp_free_i32(value);
}
if (a->w) {
/* writeback */
if (!a->p) {
tcg_gen_addi_i32(addr, addr, offset);
}
store_reg(s, a->rn, addr);
} else {
tcg_temp_free_i32(addr);
}
}
static TCGv_i32 memory_to_fp_sysreg(DisasContext *s, void *opaque,
bool do_access)
{
arg_vldr_sysreg *a = opaque;
uint32_t offset = a->imm;
TCGv_i32 addr;
TCGv_i32 value = NULL;
if (!a->a) {
offset = -offset;
}
if (!do_access && !a->w) {
return NULL;
}
addr = load_reg(s, a->rn);
if (a->p) {
tcg_gen_addi_i32(addr, addr, offset);
}
if (s->v8m_stackcheck && a->rn == 13 && a->w) {
gen_helper_v8m_stackcheck(cpu_env, addr);
}
if (do_access) {
value = tcg_temp_new_i32();
gen_aa32_ld_i32(s, value, addr, get_mem_index(s),
MO_UL | MO_ALIGN | s->be_data);
}
if (a->w) {
/* writeback */
if (!a->p) {
tcg_gen_addi_i32(addr, addr, offset);
}
store_reg(s, a->rn, addr);
} else {
tcg_temp_free_i32(addr);
}
return value;
}
static bool trans_VLDR_sysreg(DisasContext *s, arg_vldr_sysreg *a)
{
if (!arm_dc_feature(s, ARM_FEATURE_V8_1M)) {
return false;
}
if (a->rn == 15) {
return false;
}
return gen_M_fp_sysreg_write(s, a->reg, memory_to_fp_sysreg, a);
}
static bool trans_VSTR_sysreg(DisasContext *s, arg_vldr_sysreg *a)
{
if (!arm_dc_feature(s, ARM_FEATURE_V8_1M)) {
return false;
}
if (a->rn == 15) {
return false;
}
return gen_M_fp_sysreg_read(s, a->reg, fp_sysreg_to_memory, a);
}
static bool trans_NOCP(DisasContext *s, arg_nocp *a)
{
/*

759
target/arm/translate-mve.c
View File

@ -27,3 +27,762 @@
/* Include the generated decoder */
#include "decode-mve.c.inc"
typedef void MVEGenLdStFn(TCGv_ptr, TCGv_ptr, TCGv_i32);
typedef void MVEGenOneOpFn(TCGv_ptr, TCGv_ptr, TCGv_ptr);
typedef void MVEGenTwoOpFn(TCGv_ptr, TCGv_ptr, TCGv_ptr, TCGv_ptr);
typedef void MVEGenTwoOpScalarFn(TCGv_ptr, TCGv_ptr, TCGv_ptr, TCGv_i32);
typedef void MVEGenDualAccOpFn(TCGv_i64, TCGv_ptr, TCGv_ptr, TCGv_ptr, TCGv_i64);
typedef void MVEGenVADDVFn(TCGv_i32, TCGv_ptr, TCGv_ptr, TCGv_i32);
/* Return the offset of a Qn register (same semantics as aa32_vfp_qreg()) */
static inline long mve_qreg_offset(unsigned reg)
{
return offsetof(CPUARMState, vfp.zregs[reg].d[0]);
}
static TCGv_ptr mve_qreg_ptr(unsigned reg)
{
TCGv_ptr ret = tcg_temp_new_ptr();
tcg_gen_addi_ptr(ret, cpu_env, mve_qreg_offset(reg));
return ret;
}
static bool mve_check_qreg_bank(DisasContext *s, int qmask)
{
/*
* Check whether Qregs are in range. For v8.1M only Q0..Q7
* are supported, see VFPSmallRegisterBank().
*/
return qmask < 8;
}
bool mve_eci_check(DisasContext *s)
{
/*
* This is a beatwise insn: check that ECI is valid (not a
* reserved value) and note that we are handling it.
* Return true if OK, false if we generated an exception.
*/
s->eci_handled = true;
switch (s->eci) {
case ECI_NONE:
case ECI_A0:
case ECI_A0A1:
case ECI_A0A1A2:
case ECI_A0A1A2B0:
return true;
default:
/* Reserved value: INVSTATE UsageFault */
gen_exception_insn(s, s->pc_curr, EXCP_INVSTATE, syn_uncategorized(),
default_exception_el(s));
return false;
}
}
static void mve_update_eci(DisasContext *s)
{
/*
* The helper function will always update the CPUState field,
* so we only need to update the DisasContext field.
*/
if (s->eci) {
s->eci = (s->eci == ECI_A0A1A2B0) ? ECI_A0 : ECI_NONE;
}
}
void mve_update_and_store_eci(DisasContext *s)
{
/*
* For insns which don't call a helper function that will call
* mve_advance_vpt(), this version updates s->eci and also stores
* it out to the CPUState field.
*/
if (s->eci) {
mve_update_eci(s);
store_cpu_field(tcg_constant_i32(s->eci << 4), condexec_bits);
}
}
static bool mve_skip_first_beat(DisasContext *s)
{
/* Return true if PSR.ECI says we must skip the first beat of this insn */
switch (s->eci) {
case ECI_NONE:
return false;
case ECI_A0:
case ECI_A0A1:
case ECI_A0A1A2:
case ECI_A0A1A2B0:
return true;
default:
g_assert_not_reached();
}
}
static bool do_ldst(DisasContext *s, arg_VLDR_VSTR *a, MVEGenLdStFn *fn)
{
TCGv_i32 addr;
uint32_t offset;
TCGv_ptr qreg;
if (!dc_isar_feature(aa32_mve, s) ||
!mve_check_qreg_bank(s, a->qd) ||
!fn) {
return false;
}
/* CONSTRAINED UNPREDICTABLE: we choose to UNDEF */
if (a->rn == 15 || (a->rn == 13 && a->w)) {
return false;
}
if (!mve_eci_check(s) || !vfp_access_check(s)) {
return true;
}
offset = a->imm << a->size;
if (!a->a) {
offset = -offset;
}
addr = load_reg(s, a->rn);
if (a->p) {
tcg_gen_addi_i32(addr, addr, offset);
}
qreg = mve_qreg_ptr(a->qd);
fn(cpu_env, qreg, addr);
tcg_temp_free_ptr(qreg);
/*
* Writeback always happens after the last beat of the insn,
* regardless of predication
*/
if (a->w) {
if (!a->p) {
tcg_gen_addi_i32(addr, addr, offset);
}
store_reg(s, a->rn, addr);
} else {
tcg_temp_free_i32(addr);
}
mve_update_eci(s);
return true;
}
static bool trans_VLDR_VSTR(DisasContext *s, arg_VLDR_VSTR *a)
{
static MVEGenLdStFn * const ldstfns[4][2] = {
{ gen_helper_mve_vstrb, gen_helper_mve_vldrb },
{ gen_helper_mve_vstrh, gen_helper_mve_vldrh },
{ gen_helper_mve_vstrw, gen_helper_mve_vldrw },
{ NULL, NULL }
};
return do_ldst(s, a, ldstfns[a->size][a->l]);
}
#define DO_VLDST_WIDE_NARROW(OP, SLD, ULD, ST) \
static bool trans_##OP(DisasContext *s, arg_VLDR_VSTR *a) \
{ \
static MVEGenLdStFn * const ldstfns[2][2] = { \
{ gen_helper_mve_##ST, gen_helper_mve_##SLD }, \
{ NULL, gen_helper_mve_##ULD }, \
}; \
return do_ldst(s, a, ldstfns[a->u][a->l]); \
}
DO_VLDST_WIDE_NARROW(VLDSTB_H, vldrb_sh, vldrb_uh, vstrb_h)
DO_VLDST_WIDE_NARROW(VLDSTB_W, vldrb_sw, vldrb_uw, vstrb_w)
DO_VLDST_WIDE_NARROW(VLDSTH_W, vldrh_sw, vldrh_uw, vstrh_w)
static bool trans_VDUP(DisasContext *s, arg_VDUP *a)
{
TCGv_ptr qd;
TCGv_i32 rt;
if (!dc_isar_feature(aa32_mve, s) ||
!mve_check_qreg_bank(s, a->qd)) {
return false;
}
if (a->rt == 13 || a->rt == 15) {
/* UNPREDICTABLE; we choose to UNDEF */
return false;
}
if (!mve_eci_check(s) || !vfp_access_check(s)) {
return true;
}
qd = mve_qreg_ptr(a->qd);
rt = load_reg(s, a->rt);
tcg_gen_dup_i32(a->size, rt, rt);
gen_helper_mve_vdup(cpu_env, qd, rt);
tcg_temp_free_ptr(qd);
tcg_temp_free_i32(rt);
mve_update_eci(s);
return true;
}
static bool do_1op(DisasContext *s, arg_1op *a, MVEGenOneOpFn fn)
{
TCGv_ptr qd, qm;
if (!dc_isar_feature(aa32_mve, s) ||
!mve_check_qreg_bank(s, a->qd | a->qm) ||
!fn) {
return false;
}
if (!mve_eci_check(s) || !vfp_access_check(s)) {
return true;
}
qd = mve_qreg_ptr(a->qd);
qm = mve_qreg_ptr(a->qm);
fn(cpu_env, qd, qm);
tcg_temp_free_ptr(qd);
tcg_temp_free_ptr(qm);
mve_update_eci(s);
return true;
}
#define DO_1OP(INSN, FN) \
static bool trans_##INSN(DisasContext *s, arg_1op *a) \
{ \
static MVEGenOneOpFn * const fns[] = { \
gen_helper_mve_##FN##b, \
gen_helper_mve_##FN##h, \
gen_helper_mve_##FN##w, \
NULL, \
}; \
return do_1op(s, a, fns[a->size]); \
}
DO_1OP(VCLZ, vclz)
DO_1OP(VCLS, vcls)
DO_1OP(VABS, vabs)
DO_1OP(VNEG, vneg)
static bool trans_VREV16(DisasContext *s, arg_1op *a)
{
static MVEGenOneOpFn * const fns[] = {
gen_helper_mve_vrev16b,
NULL,
NULL,
NULL,
};
return do_1op(s, a, fns[a->size]);
}
static bool trans_VREV32(DisasContext *s, arg_1op *a)
{
static MVEGenOneOpFn * const fns[] = {
gen_helper_mve_vrev32b,
gen_helper_mve_vrev32h,
NULL,
NULL,
};
return do_1op(s, a, fns[a->size]);
}
static bool trans_VREV64(DisasContext *s, arg_1op *a)
{
static MVEGenOneOpFn * const fns[] = {
gen_helper_mve_vrev64b,
gen_helper_mve_vrev64h,
gen_helper_mve_vrev64w,
NULL,
};
return do_1op(s, a, fns[a->size]);
}
static bool trans_VMVN(DisasContext *s, arg_1op *a)
{
return do_1op(s, a, gen_helper_mve_vmvn);
}
static bool trans_VABS_fp(DisasContext *s, arg_1op *a)
{
static MVEGenOneOpFn * const fns[] = {
NULL,
gen_helper_mve_vfabsh,
gen_helper_mve_vfabss,
NULL,
};
if (!dc_isar_feature(aa32_mve_fp, s)) {
return false;
}
return do_1op(s, a, fns[a->size]);
}
static bool trans_VNEG_fp(DisasContext *s, arg_1op *a)
{
static MVEGenOneOpFn * const fns[] = {
NULL,
gen_helper_mve_vfnegh,
gen_helper_mve_vfnegs,
NULL,
};
if (!dc_isar_feature(aa32_mve_fp, s)) {
return false;
}
return do_1op(s, a, fns[a->size]);
}
static bool do_2op(DisasContext *s, arg_2op *a, MVEGenTwoOpFn fn)
{
TCGv_ptr qd, qn, qm;
if (!dc_isar_feature(aa32_mve, s) ||
!mve_check_qreg_bank(s, a->qd | a->qn | a->qm) ||
!fn) {
return false;
}
if (!mve_eci_check(s) || !vfp_access_check(s)) {
return true;
}
qd = mve_qreg_ptr(a->qd);
qn = mve_qreg_ptr(a->qn);
qm = mve_qreg_ptr(a->qm);
fn(cpu_env, qd, qn, qm);
tcg_temp_free_ptr(qd);
tcg_temp_free_ptr(qn);
tcg_temp_free_ptr(qm);
mve_update_eci(s);
return true;
}
#define DO_LOGIC(INSN, HELPER) \
static bool trans_##INSN(DisasContext *s, arg_2op *a) \
{ \
return do_2op(s, a, HELPER); \
}
DO_LOGIC(VAND, gen_helper_mve_vand)
DO_LOGIC(VBIC, gen_helper_mve_vbic)
DO_LOGIC(VORR, gen_helper_mve_vorr)
DO_LOGIC(VORN, gen_helper_mve_vorn)
DO_LOGIC(VEOR, gen_helper_mve_veor)
#define DO_2OP(INSN, FN) \
static bool trans_##INSN(DisasContext *s, arg_2op *a) \
{ \
static MVEGenTwoOpFn * const fns[] = { \
gen_helper_mve_##FN##b, \
gen_helper_mve_##FN##h, \
gen_helper_mve_##FN##w, \
NULL, \
}; \
return do_2op(s, a, fns[a->size]); \
}
DO_2OP(VADD, vadd)
DO_2OP(VSUB, vsub)
DO_2OP(VMUL, vmul)
DO_2OP(VMULH_S, vmulhs)
DO_2OP(VMULH_U, vmulhu)
DO_2OP(VRMULH_S, vrmulhs)
DO_2OP(VRMULH_U, vrmulhu)
DO_2OP(VMAX_S, vmaxs)
DO_2OP(VMAX_U, vmaxu)
DO_2OP(VMIN_S, vmins)
DO_2OP(VMIN_U, vminu)
DO_2OP(VABD_S, vabds)
DO_2OP(VABD_U, vabdu)
DO_2OP(VHADD_S, vhadds)
DO_2OP(VHADD_U, vhaddu)
DO_2OP(VHSUB_S, vhsubs)
DO_2OP(VHSUB_U, vhsubu)
DO_2OP(VMULL_BS, vmullbs)
DO_2OP(VMULL_BU, vmullbu)
DO_2OP(VMULL_TS, vmullts)
DO_2OP(VMULL_TU, vmulltu)
DO_2OP(VQDMULH, vqdmulh)
DO_2OP(VQRDMULH, vqrdmulh)
DO_2OP(VQADD_S, vqadds)
DO_2OP(VQADD_U, vqaddu)
DO_2OP(VQSUB_S, vqsubs)
DO_2OP(VQSUB_U, vqsubu)
DO_2OP(VSHL_S, vshls)
DO_2OP(VSHL_U, vshlu)
DO_2OP(VRSHL_S, vrshls)
DO_2OP(VRSHL_U, vrshlu)
DO_2OP(VQSHL_S, vqshls)
DO_2OP(VQSHL_U, vqshlu)
DO_2OP(VQRSHL_S, vqrshls)
DO_2OP(VQRSHL_U, vqrshlu)
DO_2OP(VQDMLADH, vqdmladh)
DO_2OP(VQDMLADHX, vqdmladhx)
DO_2OP(VQRDMLADH, vqrdmladh)
DO_2OP(VQRDMLADHX, vqrdmladhx)
DO_2OP(VQDMLSDH, vqdmlsdh)
DO_2OP(VQDMLSDHX, vqdmlsdhx)
DO_2OP(VQRDMLSDH, vqrdmlsdh)
DO_2OP(VQRDMLSDHX, vqrdmlsdhx)
DO_2OP(VRHADD_S, vrhadds)
DO_2OP(VRHADD_U, vrhaddu)
/*
* VCADD Qd == Qm at size MO_32 is UNPREDICTABLE; we choose not to diagnose
* so we can reuse the DO_2OP macro. (Our implementation calculates the
* "expected" results in this case.) Similarly for VHCADD.
*/
DO_2OP(VCADD90, vcadd90)
DO_2OP(VCADD270, vcadd270)
DO_2OP(VHCADD90, vhcadd90)
DO_2OP(VHCADD270, vhcadd270)
static bool trans_VQDMULLB(DisasContext *s, arg_2op *a)
{
static MVEGenTwoOpFn * const fns[] = {
NULL,
gen_helper_mve_vqdmullbh,
gen_helper_mve_vqdmullbw,
NULL,
};
if (a->size == MO_32 && (a->qd == a->qm || a->qd == a->qn)) {
/* UNPREDICTABLE; we choose to undef */
return false;
}
return do_2op(s, a, fns[a->size]);
}
static bool trans_VQDMULLT(DisasContext *s, arg_2op *a)
{
static MVEGenTwoOpFn * const fns[] = {
NULL,
gen_helper_mve_vqdmullth,
gen_helper_mve_vqdmulltw,
NULL,
};
if (a->size == MO_32 && (a->qd == a->qm || a->qd == a->qn)) {
/* UNPREDICTABLE; we choose to undef */
return false;
}
return do_2op(s, a, fns[a->size]);
}
/*
* VADC and VSBC: these perform an add-with-carry or subtract-with-carry
* of the 32-bit elements in each lane of the input vectors, where the
* carry-out of each add is the carry-in of the next. The initial carry
* input is either fixed (0 for VADCI, 1 for VSBCI) or is from FPSCR.C
* (for VADC and VSBC); the carry out at the end is written back to FPSCR.C.
* These insns are subject to beat-wise execution. Partial execution
* of an I=1 (initial carry input fixed) insn which does not
* execute the first beat must start with the current FPSCR.NZCV
* value, not the fixed constant input.
*/
static bool trans_VADC(DisasContext *s, arg_2op *a)
{
return do_2op(s, a, gen_helper_mve_vadc);
}
static bool trans_VADCI(DisasContext *s, arg_2op *a)
{
if (mve_skip_first_beat(s)) {
return trans_VADC(s, a);
}
return do_2op(s, a, gen_helper_mve_vadci);
}
static bool trans_VSBC(DisasContext *s, arg_2op *a)
{
return do_2op(s, a, gen_helper_mve_vsbc);
}
static bool trans_VSBCI(DisasContext *s, arg_2op *a)
{
if (mve_skip_first_beat(s)) {
return trans_VSBC(s, a);
}
return do_2op(s, a, gen_helper_mve_vsbci);
}
static bool do_2op_scalar(DisasContext *s, arg_2scalar *a,
MVEGenTwoOpScalarFn fn)
{
TCGv_ptr qd, qn;
TCGv_i32 rm;
if (!dc_isar_feature(aa32_mve, s) ||
!mve_check_qreg_bank(s, a->qd | a->qn) ||
!fn) {
return false;
}
if (a->rm == 13 || a->rm == 15) {
/* UNPREDICTABLE */
return false;
}
if (!mve_eci_check(s) || !vfp_access_check(s)) {
return true;
}
qd = mve_qreg_ptr(a->qd);
qn = mve_qreg_ptr(a->qn);
rm = load_reg(s, a->rm);
fn(cpu_env, qd, qn, rm);
tcg_temp_free_i32(rm);
tcg_temp_free_ptr(qd);
tcg_temp_free_ptr(qn);
mve_update_eci(s);
return true;
}
#define DO_2OP_SCALAR(INSN, FN) \
static bool trans_##INSN(DisasContext *s, arg_2scalar *a) \
{ \
static MVEGenTwoOpScalarFn * const fns[] = { \
gen_helper_mve_##FN##b, \
gen_helper_mve_##FN##h, \
gen_helper_mve_##FN##w, \
NULL, \
}; \
return do_2op_scalar(s, a, fns[a->size]); \
}
DO_2OP_SCALAR(VADD_scalar, vadd_scalar)
DO_2OP_SCALAR(VSUB_scalar, vsub_scalar)
DO_2OP_SCALAR(VMUL_scalar, vmul_scalar)
DO_2OP_SCALAR(VHADD_S_scalar, vhadds_scalar)
DO_2OP_SCALAR(VHADD_U_scalar, vhaddu_scalar)
DO_2OP_SCALAR(VHSUB_S_scalar, vhsubs_scalar)
DO_2OP_SCALAR(VHSUB_U_scalar, vhsubu_scalar)
DO_2OP_SCALAR(VQADD_S_scalar, vqadds_scalar)
DO_2OP_SCALAR(VQADD_U_scalar, vqaddu_scalar)
DO_2OP_SCALAR(VQSUB_S_scalar, vqsubs_scalar)
DO_2OP_SCALAR(VQSUB_U_scalar, vqsubu_scalar)
DO_2OP_SCALAR(VQDMULH_scalar, vqdmulh_scalar)
DO_2OP_SCALAR(VQRDMULH_scalar, vqrdmulh_scalar)
DO_2OP_SCALAR(VBRSR, vbrsr)
static bool trans_VQDMULLB_scalar(DisasContext *s, arg_2scalar *a)
{
static MVEGenTwoOpScalarFn * const fns[] = {
NULL,
gen_helper_mve_vqdmullb_scalarh,
gen_helper_mve_vqdmullb_scalarw,
NULL,
};
if (a->qd == a->qn && a->size == MO_32) {
/* UNPREDICTABLE; we choose to undef */
return false;
}
return do_2op_scalar(s, a, fns[a->size]);
}
static bool trans_VQDMULLT_scalar(DisasContext *s, arg_2scalar *a)
{
static MVEGenTwoOpScalarFn * const fns[] = {
NULL,
gen_helper_mve_vqdmullt_scalarh,
gen_helper_mve_vqdmullt_scalarw,
NULL,
};
if (a->qd == a->qn && a->size == MO_32) {
/* UNPREDICTABLE; we choose to undef */
return false;
}
return do_2op_scalar(s, a, fns[a->size]);
}
static bool do_long_dual_acc(DisasContext *s, arg_vmlaldav *a,
MVEGenDualAccOpFn *fn)
{
TCGv_ptr qn, qm;
TCGv_i64 rda;
TCGv_i32 rdalo, rdahi;
if (!dc_isar_feature(aa32_mve, s) ||
!mve_check_qreg_bank(s, a->qn | a->qm) ||
!fn) {
return false;
}
/*
* rdahi == 13 is UNPREDICTABLE; rdahi == 15 is a related
* encoding; rdalo always has bit 0 clear so cannot be 13 or 15.
*/
if (a->rdahi == 13 || a->rdahi == 15) {
return false;
}
if (!mve_eci_check(s) || !vfp_access_check(s)) {
return true;
}
qn = mve_qreg_ptr(a->qn);
qm = mve_qreg_ptr(a->qm);
/*
* This insn is subject to beat-wise execution. Partial execution
* of an A=0 (no-accumulate) insn which does not execute the first
* beat must start with the current rda value, not 0.
*/
if (a->a || mve_skip_first_beat(s)) {
rda = tcg_temp_new_i64();
rdalo = load_reg(s, a->rdalo);
rdahi = load_reg(s, a->rdahi);
tcg_gen_concat_i32_i64(rda, rdalo, rdahi);
tcg_temp_free_i32(rdalo);
tcg_temp_free_i32(rdahi);
} else {
rda = tcg_const_i64(0);
}
fn(rda, cpu_env, qn, qm, rda);
tcg_temp_free_ptr(qn);
tcg_temp_free_ptr(qm);
rdalo = tcg_temp_new_i32();
rdahi = tcg_temp_new_i32();
tcg_gen_extrl_i64_i32(rdalo, rda);
tcg_gen_extrh_i64_i32(rdahi, rda);
store_reg(s, a->rdalo, rdalo);
store_reg(s, a->rdahi, rdahi);
tcg_temp_free_i64(rda);
mve_update_eci(s);
return true;
}
static bool trans_VMLALDAV_S(DisasContext *s, arg_vmlaldav *a)
{
static MVEGenDualAccOpFn * const fns[4][2] = {
{ NULL, NULL },
{ gen_helper_mve_vmlaldavsh, gen_helper_mve_vmlaldavxsh },
{ gen_helper_mve_vmlaldavsw, gen_helper_mve_vmlaldavxsw },
{ NULL, NULL },
};
return do_long_dual_acc(s, a, fns[a->size][a->x]);
}
static bool trans_VMLALDAV_U(DisasContext *s, arg_vmlaldav *a)
{
static MVEGenDualAccOpFn * const fns[4][2] = {
{ NULL, NULL },
{ gen_helper_mve_vmlaldavuh, NULL },
{ gen_helper_mve_vmlaldavuw, NULL },
{ NULL, NULL },
};
return do_long_dual_acc(s, a, fns[a->size][a->x]);
}
static bool trans_VMLSLDAV(DisasContext *s, arg_vmlaldav *a)
{
static MVEGenDualAccOpFn * const fns[4][2] = {
{ NULL, NULL },
{ gen_helper_mve_vmlsldavsh, gen_helper_mve_vmlsldavxsh },
{ gen_helper_mve_vmlsldavsw, gen_helper_mve_vmlsldavxsw },
{ NULL, NULL },
};
return do_long_dual_acc(s, a, fns[a->size][a->x]);
}
static bool trans_VRMLALDAVH_S(DisasContext *s, arg_vmlaldav *a)
{
static MVEGenDualAccOpFn * const fns[] = {
gen_helper_mve_vrmlaldavhsw, gen_helper_mve_vrmlaldavhxsw,
};
return do_long_dual_acc(s, a, fns[a->x]);
}
static bool trans_VRMLALDAVH_U(DisasContext *s, arg_vmlaldav *a)
{
static MVEGenDualAccOpFn * const fns[] = {
gen_helper_mve_vrmlaldavhuw, NULL,
};
return do_long_dual_acc(s, a, fns[a->x]);
}
static bool trans_VRMLSLDAVH(DisasContext *s, arg_vmlaldav *a)
{
static MVEGenDualAccOpFn * const fns[] = {
gen_helper_mve_vrmlsldavhsw, gen_helper_mve_vrmlsldavhxsw,
};
return do_long_dual_acc(s, a, fns[a->x]);
}
static bool trans_VPST(DisasContext *s, arg_VPST *a)
{
TCGv_i32 vpr;
/* mask == 0 is a "related encoding" */
if (!dc_isar_feature(aa32_mve, s) || !a->mask) {
return false;
}
if (!mve_eci_check(s) || !vfp_access_check(s)) {
return true;
}
/*
* Set the VPR mask fields. We take advantage of MASK01 and MASK23
* being adjacent fields in the register.
*
* This insn is not predicated, but it is subject to beat-wise
* execution, and the mask is updated on the odd-numbered beats.
* So if PSR.ECI says we should skip beat 1, we mustn't update the
* 01 mask field.
*/
vpr = load_cpu_field(v7m.vpr);
switch (s->eci) {
case ECI_NONE:
case ECI_A0:
/* Update both 01 and 23 fields */
tcg_gen_deposit_i32(vpr, vpr,
tcg_constant_i32(a->mask | (a->mask << 4)),
R_V7M_VPR_MASK01_SHIFT,
R_V7M_VPR_MASK01_LENGTH + R_V7M_VPR_MASK23_LENGTH);
break;
case ECI_A0A1:
case ECI_A0A1A2:
case ECI_A0A1A2B0:
/* Update only the 23 mask field */
tcg_gen_deposit_i32(vpr, vpr,
tcg_constant_i32(a->mask),
R_V7M_VPR_MASK23_SHIFT, R_V7M_VPR_MASK23_LENGTH);
break;
default:
g_assert_not_reached();
}
store_cpu_field(vpr, v7m.vpr);
mve_update_and_store_eci(s);
return true;
}
static bool trans_VADDV(DisasContext *s, arg_VADDV *a)
{
/* VADDV: vector add across vector */
static MVEGenVADDVFn * const fns[4][2] = {
{ gen_helper_mve_vaddvsb, gen_helper_mve_vaddvub },
{ gen_helper_mve_vaddvsh, gen_helper_mve_vaddvuh },
{ gen_helper_mve_vaddvsw, gen_helper_mve_vaddvuw },
{ NULL, NULL }
};
TCGv_ptr qm;
TCGv_i32 rda;
if (!dc_isar_feature(aa32_mve, s) ||
a->size == 3) {
return false;
}
if (!mve_eci_check(s) || !vfp_access_check(s)) {
return true;
}
/*
* This insn is subject to beat-wise execution. Partial execution
* of an A=0 (no-accumulate) insn which does not execute the first
* beat must start with the current value of Rda, not zero.
*/
if (a->a || mve_skip_first_beat(s)) {
/* Accumulate input from Rda */
rda = load_reg(s, a->rda);
} else {
/* Accumulate starting at zero */
rda = tcg_const_i32(0);
}
qm = mve_qreg_ptr(a->qm);
fns[a->size][a->u](rda, cpu_env, qm, rda);
store_reg(s, a->rda, rda);
tcg_temp_free_ptr(qm);
mve_update_eci(s);
return true;
}

741
target/arm/translate-vfp.c
View File

@ -132,32 +132,75 @@ static void gen_preserve_fp_state(DisasContext *s)
}
/*
* Check that VFP access is enabled. If it is, do the necessary
* M-profile lazy-FP handling and then return true.
* If not, emit code to generate an appropriate exception and
* return false.
* Generate code for M-profile FP context handling: update the
* ownership of the FP context, and create a new context if
* necessary. This corresponds to the parts of the pseudocode
* ExecuteFPCheck() after the inital PreserveFPState() call.
*/
static void gen_update_fp_context(DisasContext *s)
{
/* Update ownership of FP context: set FPCCR.S to match current state */
if (s->v8m_fpccr_s_wrong) {
TCGv_i32 tmp;
tmp = load_cpu_field(v7m.fpccr[M_REG_S]);
if (s->v8m_secure) {
tcg_gen_ori_i32(tmp, tmp, R_V7M_FPCCR_S_MASK);
} else {
tcg_gen_andi_i32(tmp, tmp, ~R_V7M_FPCCR_S_MASK);
}
store_cpu_field(tmp, v7m.fpccr[M_REG_S]);
/* Don't need to do this for any further FP insns in this TB */
s->v8m_fpccr_s_wrong = false;
}
if (s->v7m_new_fp_ctxt_needed) {
/*
* Create new FP context by updating CONTROL.FPCA, CONTROL.SFPA,
* the FPSCR, and VPR.
*/
TCGv_i32 control, fpscr;
uint32_t bits = R_V7M_CONTROL_FPCA_MASK;
fpscr = load_cpu_field(v7m.fpdscr[s->v8m_secure]);
gen_helper_vfp_set_fpscr(cpu_env, fpscr);
tcg_temp_free_i32(fpscr);
if (dc_isar_feature(aa32_mve, s)) {
TCGv_i32 z32 = tcg_const_i32(0);
store_cpu_field(z32, v7m.vpr);
}
/*
* We don't need to arrange to end the TB, because the only
* parts of FPSCR which we cache in the TB flags are the VECLEN
* and VECSTRIDE, and those don't exist for M-profile.
*/
if (s->v8m_secure) {
bits |= R_V7M_CONTROL_SFPA_MASK;
}
control = load_cpu_field(v7m.control[M_REG_S]);
tcg_gen_ori_i32(control, control, bits);
store_cpu_field(control, v7m.control[M_REG_S]);
/* Don't need to do this for any further FP insns in this TB */
s->v7m_new_fp_ctxt_needed = false;
}
}
/*
* Check that VFP access is enabled, A-profile specific version.
*
* If VFP is enabled, return true. If not, emit code to generate an
* appropriate exception and return false.
* The ignore_vfp_enabled argument specifies that we should ignore
* whether VFP is enabled via FPEXC[EN]: this should be true for FMXR/FMRX
* whether VFP is enabled via FPEXC.EN: this should be true for FMXR/FMRX
* accesses to FPSID, FPEXC, MVFR0, MVFR1, MVFR2, and false for all other insns.
*/
static bool full_vfp_access_check(DisasContext *s, bool ignore_vfp_enabled)
static bool vfp_access_check_a(DisasContext *s, bool ignore_vfp_enabled)
{
if (s->fp_excp_el) {
if (arm_dc_feature(s, ARM_FEATURE_M)) {
/*
* M-profile mostly catches the "FPU disabled" case early, in
* disas_m_nocp(), but a few insns (eg LCTP, WLSTP, DLSTP)
* which do coprocessor-checks are outside the large ranges of
* the encoding space handled by the patterns in m-nocp.decode,
* and for them we may need to raise NOCP here.
*/
gen_exception_insn(s, s->pc_curr, EXCP_NOCP,
syn_uncategorized(), s->fp_excp_el);
} else {
gen_exception_insn(s, s->pc_curr, EXCP_UDEF,
syn_fp_access_trap(1, 0xe, false),
s->fp_excp_el);
}
gen_exception_insn(s, s->pc_curr, EXCP_UDEF,
syn_fp_access_trap(1, 0xe, false), s->fp_excp_el);
return false;
}
@ -166,59 +209,40 @@ static bool full_vfp_access_check(DisasContext *s, bool ignore_vfp_enabled)
unallocated_encoding(s);
return false;
}
return true;
}
if (arm_dc_feature(s, ARM_FEATURE_M)) {
/* Handle M-profile lazy FP state mechanics */
/*
* Check that VFP access is enabled, M-profile specific version.
*
* If VFP is enabled, do the necessary M-profile lazy-FP handling and then
* return true. If not, emit code to generate an appropriate exception and
* return false.
* skip_context_update is true to skip the "update FP context" part of this.
*/
bool vfp_access_check_m(DisasContext *s, bool skip_context_update)
{
if (s->fp_excp_el) {
/*
* M-profile mostly catches the "FPU disabled" case early, in
* disas_m_nocp(), but a few insns (eg LCTP, WLSTP, DLSTP)
* which do coprocessor-checks are outside the large ranges of
* the encoding space handled by the patterns in m-nocp.decode,
* and for them we may need to raise NOCP here.
*/
gen_exception_insn(s, s->pc_curr, EXCP_NOCP,
syn_uncategorized(), s->fp_excp_el);
return false;
}
/* Trigger lazy-state preservation if necessary */
gen_preserve_fp_state(s);
/* Handle M-profile lazy FP state mechanics */
/* Update ownership of FP context: set FPCCR.S to match current state */
if (s->v8m_fpccr_s_wrong) {
TCGv_i32 tmp;
/* Trigger lazy-state preservation if necessary */
gen_preserve_fp_state(s);
tmp = load_cpu_field(v7m.fpccr[M_REG_S]);
if (s->v8m_secure) {
tcg_gen_ori_i32(tmp, tmp, R_V7M_FPCCR_S_MASK);
} else {
tcg_gen_andi_i32(tmp, tmp, ~R_V7M_FPCCR_S_MASK);
}
store_cpu_field(tmp, v7m.fpccr[M_REG_S]);
/* Don't need to do this for any further FP insns in this TB */
s->v8m_fpccr_s_wrong = false;
}
if (s->v7m_new_fp_ctxt_needed) {
/*
* Create new FP context by updating CONTROL.FPCA, CONTROL.SFPA,
* the FPSCR, and VPR.
*/
TCGv_i32 control, fpscr;
uint32_t bits = R_V7M_CONTROL_FPCA_MASK;
fpscr = load_cpu_field(v7m.fpdscr[s->v8m_secure]);
gen_helper_vfp_set_fpscr(cpu_env, fpscr);
tcg_temp_free_i32(fpscr);
if (dc_isar_feature(aa32_mve, s)) {
TCGv_i32 z32 = tcg_const_i32(0);
store_cpu_field(z32, v7m.vpr);
}
/*
* We don't need to arrange to end the TB, because the only
* parts of FPSCR which we cache in the TB flags are the VECLEN
* and VECSTRIDE, and those don't exist for M-profile.
*/
if (s->v8m_secure) {
bits |= R_V7M_CONTROL_SFPA_MASK;
}
control = load_cpu_field(v7m.control[M_REG_S]);
tcg_gen_ori_i32(control, control, bits);
store_cpu_field(control, v7m.control[M_REG_S]);
/* Don't need to do this for any further FP insns in this TB */
s->v7m_new_fp_ctxt_needed = false;
}
if (!skip_context_update) {
/* Update ownership of FP context and create new FP context if needed */
gen_update_fp_context(s);
}
return true;
@ -230,7 +254,11 @@ static bool full_vfp_access_check(DisasContext *s, bool ignore_vfp_enabled)
*/
bool vfp_access_check(DisasContext *s)
{
return full_vfp_access_check(s, false);
if (arm_dc_feature(s, ARM_FEATURE_M)) {
return vfp_access_check_m(s, false);
} else {
return vfp_access_check_a(s, false);
}
}
static bool trans_VSEL(DisasContext *s, arg_VSEL *a)
@ -553,6 +581,48 @@ static bool trans_VCVT(DisasContext *s, arg_VCVT *a)
return true;
}
static bool mve_skip_vmov(DisasContext *s, int vn, int index, int size)
{
/*
* In a CPU with MVE, the VMOV (vector lane to general-purpose register)
* and VMOV (general-purpose register to vector lane) insns are not
* predicated, but they are subject to beatwise execution if they are
* not in an IT block.
*
* Since our implementation always executes all 4 beats in one tick,
* this means only that if PSR.ECI says we should not be executing
* the beat corresponding to the lane of the vector register being
* accessed then we should skip performing the move, and that we need
* to do the usual check for bad ECI state and advance of ECI state.
*
* Note that if PSR.ECI is non-zero then we cannot be in an IT block.
*
* Return true if this VMOV scalar <-> gpreg should be skipped because
* the MVE PSR.ECI state says we skip the beat where the store happens.
*/
/* Calculate the byte offset into Qn which we're going to access */
int ofs = (index << size) + ((vn & 1) * 8);
if (!dc_isar_feature(aa32_mve, s)) {
return false;
}
switch (s->eci) {
case ECI_NONE:
return false;
case ECI_A0:
return ofs < 4;
case ECI_A0A1:
return ofs < 8;
case ECI_A0A1A2:
case ECI_A0A1A2B0:
return ofs < 12;
default:
g_assert_not_reached();
}
}
static bool trans_VMOV_to_gp(DisasContext *s, arg_VMOV_to_gp *a)
{
/* VMOV scalar to general purpose register */
@ -575,14 +645,26 @@ static bool trans_VMOV_to_gp(DisasContext *s, arg_VMOV_to_gp *a)
return false;
}
if (dc_isar_feature(aa32_mve, s)) {
if (!mve_eci_check(s)) {
return true;
}
}
if (!vfp_access_check(s)) {
return true;
}
tmp = tcg_temp_new_i32();
read_neon_element32(tmp, a->vn, a->index, a->size | (a->u ? 0 : MO_SIGN));
store_reg(s, a->rt, tmp);
if (!mve_skip_vmov(s, a->vn, a->index, a->size)) {
tmp = tcg_temp_new_i32();
read_neon_element32(tmp, a->vn, a->index,
a->size | (a->u ? 0 : MO_SIGN));
store_reg(s, a->rt, tmp);
}
if (dc_isar_feature(aa32_mve, s)) {
mve_update_and_store_eci(s);
}
return true;
}
@ -608,14 +690,25 @@ static bool trans_VMOV_from_gp(DisasContext *s, arg_VMOV_from_gp *a)
return false;
}
if (dc_isar_feature(aa32_mve, s)) {
if (!mve_eci_check(s)) {
return true;
}
}
if (!vfp_access_check(s)) {
return true;
}
tmp = load_reg(s, a->rt);
write_neon_element32(tmp, a->vn, a->index, a->size);
tcg_temp_free_i32(tmp);
if (!mve_skip_vmov(s, a->vn, a->index, a->size)) {
tmp = load_reg(s, a->rt);
write_neon_element32(tmp, a->vn, a->index, a->size);
tcg_temp_free_i32(tmp);
}
if (dc_isar_feature(aa32_mve, s)) {
mve_update_and_store_eci(s);
}
return true;
}
@ -663,408 +756,14 @@ static bool trans_VDUP(DisasContext *s, arg_VDUP *a)
return true;
}
/*
* M-profile provides two different sets of instructions that can
* access floating point system registers: VMSR/VMRS (which move
* to/from a general purpose register) and VLDR/VSTR sysreg (which
* move directly to/from memory). In some cases there are also side
* effects which must happen after any write to memory (which could
* cause an exception). So we implement the common logic for the
* sysreg access in gen_M_fp_sysreg_write() and gen_M_fp_sysreg_read(),
* which take pointers to callback functions which will perform the
* actual "read/write general purpose register" and "read/write
* memory" operations.
*/
/*
* Emit code to store the sysreg to its final destination; frees the
* TCG temp 'value' it is passed.
*/
typedef void fp_sysreg_storefn(DisasContext *s, void *opaque, TCGv_i32 value);
/*
* Emit code to load the value to be copied to the sysreg; returns
* a new TCG temporary
*/
typedef TCGv_i32 fp_sysreg_loadfn(DisasContext *s, void *opaque);
/* Common decode/access checks for fp sysreg read/write */
typedef enum FPSysRegCheckResult {
FPSysRegCheckFailed, /* caller should return false */
FPSysRegCheckDone, /* caller should return true */
FPSysRegCheckContinue, /* caller should continue generating code */
} FPSysRegCheckResult;
static FPSysRegCheckResult fp_sysreg_checks(DisasContext *s, int regno)
{
if (!dc_isar_feature(aa32_fpsp_v2, s) && !dc_isar_feature(aa32_mve, s)) {
return FPSysRegCheckFailed;
}
switch (regno) {
case ARM_VFP_FPSCR:
case QEMU_VFP_FPSCR_NZCV:
break;
case ARM_VFP_FPSCR_NZCVQC:
if (!arm_dc_feature(s, ARM_FEATURE_V8_1M)) {
return FPSysRegCheckFailed;
}
break;
case ARM_VFP_FPCXT_S:
case ARM_VFP_FPCXT_NS:
if (!arm_dc_feature(s, ARM_FEATURE_V8_1M)) {
return FPSysRegCheckFailed;
}
if (!s->v8m_secure) {
return FPSysRegCheckFailed;
}
break;
case ARM_VFP_VPR:
case ARM_VFP_P0:
if (!dc_isar_feature(aa32_mve, s)) {
return FPSysRegCheckFailed;
}
break;
default:
return FPSysRegCheckFailed;
}
/*
* FPCXT_NS is a special case: it has specific handling for
* "current FP state is inactive", and must do the PreserveFPState()
* but not the usual full set of actions done by ExecuteFPCheck().
* So we don't call vfp_access_check() and the callers must handle this.
*/
if (regno != ARM_VFP_FPCXT_NS && !vfp_access_check(s)) {
return FPSysRegCheckDone;
}
return FPSysRegCheckContinue;
}
static void gen_branch_fpInactive(DisasContext *s, TCGCond cond,
TCGLabel *label)
{
/*
* FPCXT_NS is a special case: it has specific handling for
* "current FP state is inactive", and must do the PreserveFPState()
* but not the usual full set of actions done by ExecuteFPCheck().
* We don't have a TB flag that matches the fpInactive check, so we
* do it at runtime as we don't expect FPCXT_NS accesses to be frequent.
*
* Emit code that checks fpInactive and does a conditional
* branch to label based on it:
* if cond is TCG_COND_NE then branch if fpInactive != 0 (ie if inactive)
* if cond is TCG_COND_EQ then branch if fpInactive == 0 (ie if active)
*/
assert(cond == TCG_COND_EQ || cond == TCG_COND_NE);
/* fpInactive = FPCCR_NS.ASPEN == 1 && CONTROL.FPCA == 0 */
TCGv_i32 aspen, fpca;
aspen = load_cpu_field(v7m.fpccr[M_REG_NS]);
fpca = load_cpu_field(v7m.control[M_REG_S]);
tcg_gen_andi_i32(aspen, aspen, R_V7M_FPCCR_ASPEN_MASK);
tcg_gen_xori_i32(aspen, aspen, R_V7M_FPCCR_ASPEN_MASK);
tcg_gen_andi_i32(fpca, fpca, R_V7M_CONTROL_FPCA_MASK);
tcg_gen_or_i32(fpca, fpca, aspen);
tcg_gen_brcondi_i32(tcg_invert_cond(cond), fpca, 0, label);
tcg_temp_free_i32(aspen);
tcg_temp_free_i32(fpca);
}
static bool gen_M_fp_sysreg_write(DisasContext *s, int regno,
fp_sysreg_loadfn *loadfn,
void *opaque)
{
/* Do a write to an M-profile floating point system register */
TCGv_i32 tmp;
TCGLabel *lab_end = NULL;
switch (fp_sysreg_checks(s, regno)) {
case FPSysRegCheckFailed:
return false;
case FPSysRegCheckDone:
return true;
case FPSysRegCheckContinue:
break;
}
switch (regno) {
case ARM_VFP_FPSCR:
tmp = loadfn(s, opaque);
gen_helper_vfp_set_fpscr(cpu_env, tmp);
tcg_temp_free_i32(tmp);
gen_lookup_tb(s);
break;
case ARM_VFP_FPSCR_NZCVQC:
{
TCGv_i32 fpscr;
tmp = loadfn(s, opaque);
if (dc_isar_feature(aa32_mve, s)) {
/* QC is only present for MVE; otherwise RES0 */
TCGv_i32 qc = tcg_temp_new_i32();
tcg_gen_andi_i32(qc, tmp, FPCR_QC);
/*
* The 4 vfp.qc[] fields need only be "zero" vs "non-zero";
* here writing the same value into all elements is simplest.
*/
tcg_gen_gvec_dup_i32(MO_32, offsetof(CPUARMState, vfp.qc),
16, 16, qc);
}
tcg_gen_andi_i32(tmp, tmp, FPCR_NZCV_MASK);
fpscr = load_cpu_field(vfp.xregs[ARM_VFP_FPSCR]);
tcg_gen_andi_i32(fpscr, fpscr, ~FPCR_NZCV_MASK);
tcg_gen_or_i32(fpscr, fpscr, tmp);
store_cpu_field(fpscr, vfp.xregs[ARM_VFP_FPSCR]);
tcg_temp_free_i32(tmp);
break;
}
case ARM_VFP_FPCXT_NS:
lab_end = gen_new_label();
/* fpInactive case: write is a NOP, so branch to end */
gen_branch_fpInactive(s, TCG_COND_NE, lab_end);
/* !fpInactive: PreserveFPState(), and reads same as FPCXT_S */
gen_preserve_fp_state(s);
/* fall through */
case ARM_VFP_FPCXT_S:
{
TCGv_i32 sfpa, control;
/*
* Set FPSCR and CONTROL.SFPA from value; the new FPSCR takes
* bits [27:0] from value and zeroes bits [31:28].
*/
tmp = loadfn(s, opaque);
sfpa = tcg_temp_new_i32();
tcg_gen_shri_i32(sfpa, tmp, 31);
control = load_cpu_field(v7m.control[M_REG_S]);
tcg_gen_deposit_i32(control, control, sfpa,
R_V7M_CONTROL_SFPA_SHIFT, 1);
store_cpu_field(control, v7m.control[M_REG_S]);
tcg_gen_andi_i32(tmp, tmp, ~FPCR_NZCV_MASK);
gen_helper_vfp_set_fpscr(cpu_env, tmp);
tcg_temp_free_i32(tmp);
tcg_temp_free_i32(sfpa);
break;
}
case ARM_VFP_VPR:
/* Behaves as NOP if not privileged */
if (IS_USER(s)) {
break;
}
tmp = loadfn(s, opaque);
store_cpu_field(tmp, v7m.vpr);
break;
case ARM_VFP_P0:
{
TCGv_i32 vpr;
tmp = loadfn(s, opaque);
vpr = load_cpu_field(v7m.vpr);
tcg_gen_deposit_i32(vpr, vpr, tmp,
R_V7M_VPR_P0_SHIFT, R_V7M_VPR_P0_LENGTH);
store_cpu_field(vpr, v7m.vpr);
tcg_temp_free_i32(tmp);
break;
}
default:
g_assert_not_reached();
}
if (lab_end) {
gen_set_label(lab_end);
}
return true;
}
static bool gen_M_fp_sysreg_read(DisasContext *s, int regno,
fp_sysreg_storefn *storefn,
void *opaque)
{
/* Do a read from an M-profile floating point system register */
TCGv_i32 tmp;
TCGLabel *lab_end = NULL;
bool lookup_tb = false;
switch (fp_sysreg_checks(s, regno)) {
case FPSysRegCheckFailed:
return false;
case FPSysRegCheckDone:
return true;
case FPSysRegCheckContinue:
break;
}
if (regno == ARM_VFP_FPSCR_NZCVQC && !dc_isar_feature(aa32_mve, s)) {
/* QC is RES0 without MVE, so NZCVQC simplifies to NZCV */
regno = QEMU_VFP_FPSCR_NZCV;
}
switch (regno) {
case ARM_VFP_FPSCR:
tmp = tcg_temp_new_i32();
gen_helper_vfp_get_fpscr(tmp, cpu_env);
storefn(s, opaque, tmp);
break;
case ARM_VFP_FPSCR_NZCVQC:
tmp = tcg_temp_new_i32();
gen_helper_vfp_get_fpscr(tmp, cpu_env);
tcg_gen_andi_i32(tmp, tmp, FPCR_NZCVQC_MASK);
storefn(s, opaque, tmp);
break;
case QEMU_VFP_FPSCR_NZCV:
/*
* Read just NZCV; this is a special case to avoid the
* helper call for the "VMRS to CPSR.NZCV" insn.
*/
tmp = load_cpu_field(vfp.xregs[ARM_VFP_FPSCR]);
tcg_gen_andi_i32(tmp, tmp, FPCR_NZCV_MASK);
storefn(s, opaque, tmp);
break;
case ARM_VFP_FPCXT_S:
{
TCGv_i32 control, sfpa, fpscr;
/* Bits [27:0] from FPSCR, bit [31] from CONTROL.SFPA */
tmp = tcg_temp_new_i32();
sfpa = tcg_temp_new_i32();
gen_helper_vfp_get_fpscr(tmp, cpu_env);
tcg_gen_andi_i32(tmp, tmp, ~FPCR_NZCV_MASK);
control = load_cpu_field(v7m.control[M_REG_S]);
tcg_gen_andi_i32(sfpa, control, R_V7M_CONTROL_SFPA_MASK);
tcg_gen_shli_i32(sfpa, sfpa, 31 - R_V7M_CONTROL_SFPA_SHIFT);
tcg_gen_or_i32(tmp, tmp, sfpa);
tcg_temp_free_i32(sfpa);
/*
* Store result before updating FPSCR etc, in case
* it is a memory write which causes an exception.
*/
storefn(s, opaque, tmp);
/*
* Now we must reset FPSCR from FPDSCR_NS, and clear
* CONTROL.SFPA; so we'll end the TB here.
*/
tcg_gen_andi_i32(control, control, ~R_V7M_CONTROL_SFPA_MASK);
store_cpu_field(control, v7m.control[M_REG_S]);
fpscr = load_cpu_field(v7m.fpdscr[M_REG_NS]);
gen_helper_vfp_set_fpscr(cpu_env, fpscr);
tcg_temp_free_i32(fpscr);
lookup_tb = true;
break;
}
case ARM_VFP_FPCXT_NS:
{
TCGv_i32 control, sfpa, fpscr, fpdscr, zero;
TCGLabel *lab_active = gen_new_label();
lookup_tb = true;
gen_branch_fpInactive(s, TCG_COND_EQ, lab_active);
/* fpInactive case: reads as FPDSCR_NS */
TCGv_i32 tmp = load_cpu_field(v7m.fpdscr[M_REG_NS]);
storefn(s, opaque, tmp);
lab_end = gen_new_label();
tcg_gen_br(lab_end);
gen_set_label(lab_active);
/* !fpInactive: Reads the same as FPCXT_S, but side effects differ */
gen_preserve_fp_state(s);
tmp = tcg_temp_new_i32();
sfpa = tcg_temp_new_i32();
fpscr = tcg_temp_new_i32();
gen_helper_vfp_get_fpscr(fpscr, cpu_env);
tcg_gen_andi_i32(tmp, fpscr, ~FPCR_NZCV_MASK);
control = load_cpu_field(v7m.control[M_REG_S]);
tcg_gen_andi_i32(sfpa, control, R_V7M_CONTROL_SFPA_MASK);
tcg_gen_shli_i32(sfpa, sfpa, 31 - R_V7M_CONTROL_SFPA_SHIFT);
tcg_gen_or_i32(tmp, tmp, sfpa);
tcg_temp_free_i32(control);
/* Store result before updating FPSCR, in case it faults */
storefn(s, opaque, tmp);
/* If SFPA is zero then set FPSCR from FPDSCR_NS */
fpdscr = load_cpu_field(v7m.fpdscr[M_REG_NS]);
zero = tcg_const_i32(0);
tcg_gen_movcond_i32(TCG_COND_EQ, fpscr, sfpa, zero, fpdscr, fpscr);
gen_helper_vfp_set_fpscr(cpu_env, fpscr);
tcg_temp_free_i32(zero);
tcg_temp_free_i32(sfpa);
tcg_temp_free_i32(fpdscr);
tcg_temp_free_i32(fpscr);
break;
}
case ARM_VFP_VPR:
/* Behaves as NOP if not privileged */
if (IS_USER(s)) {
break;
}
tmp = load_cpu_field(v7m.vpr);
storefn(s, opaque, tmp);
break;
case ARM_VFP_P0:
tmp = load_cpu_field(v7m.vpr);
tcg_gen_extract_i32(tmp, tmp, R_V7M_VPR_P0_SHIFT, R_V7M_VPR_P0_LENGTH);
storefn(s, opaque, tmp);
break;
default:
g_assert_not_reached();
}
if (lab_end) {
gen_set_label(lab_end);
}
if (lookup_tb) {
gen_lookup_tb(s);
}
return true;
}
static void fp_sysreg_to_gpr(DisasContext *s, void *opaque, TCGv_i32 value)
{
arg_VMSR_VMRS *a = opaque;
if (a->rt == 15) {
/* Set the 4 flag bits in the CPSR */
gen_set_nzcv(value);
tcg_temp_free_i32(value);
} else {
store_reg(s, a->rt, value);
}
}
static TCGv_i32 gpr_to_fp_sysreg(DisasContext *s, void *opaque)
{
arg_VMSR_VMRS *a = opaque;
return load_reg(s, a->rt);
}
static bool gen_M_VMSR_VMRS(DisasContext *s, arg_VMSR_VMRS *a)
{
/*
* Accesses to R15 are UNPREDICTABLE; we choose to undef.
* FPSCR -> r15 is a special case which writes to the PSR flags;
* set a->reg to a special value to tell gen_M_fp_sysreg_read()
* we only care about the top 4 bits of FPSCR there.
*/
if (a->rt == 15) {
if (a->l && a->reg == ARM_VFP_FPSCR) {
a->reg = QEMU_VFP_FPSCR_NZCV;
} else {
return false;
}
}
if (a->l) {
/* VMRS, move FP system register to gp register */
return gen_M_fp_sysreg_read(s, a->reg, fp_sysreg_to_gpr, a);
} else {
/* VMSR, move gp register to FP system register */
return gen_M_fp_sysreg_write(s, a->reg, gpr_to_fp_sysreg, a);
}
}
static bool trans_VMSR_VMRS(DisasContext *s, arg_VMSR_VMRS *a)
{
TCGv_i32 tmp;
bool ignore_vfp_enabled = false;
if (arm_dc_feature(s, ARM_FEATURE_M)) {
return gen_M_VMSR_VMRS(s, a);
/* M profile version was already handled in m-nocp.decode */
return false;
}
if (!dc_isar_feature(aa32_fpsp_v2, s)) {
@ -1114,7 +813,11 @@ static bool trans_VMSR_VMRS(DisasContext *s, arg_VMSR_VMRS *a)
return false;
}
if (!full_vfp_access_check(s, ignore_vfp_enabled)) {
/*
* Call vfp_access_check_a() directly, because we need to tell
* it to ignore FPEXC.EN for some register accesses.
*/
if (!vfp_access_check_a(s, ignore_vfp_enabled)) {
return true;
}
@ -1200,96 +903,6 @@ static bool trans_VMSR_VMRS(DisasContext *s, arg_VMSR_VMRS *a)
return true;
}
static void fp_sysreg_to_memory(DisasContext *s, void *opaque, TCGv_i32 value)
{
arg_vldr_sysreg *a = opaque;
uint32_t offset = a->imm;
TCGv_i32 addr;
if (!a->a) {
offset = - offset;
}
addr = load_reg(s, a->rn);
if (a->p) {
tcg_gen_addi_i32(addr, addr, offset);
}
if (s->v8m_stackcheck && a->rn == 13 && a->w) {
gen_helper_v8m_stackcheck(cpu_env, addr);
}
gen_aa32_st_i32(s, value, addr, get_mem_index(s),
MO_UL | MO_ALIGN | s->be_data);
tcg_temp_free_i32(value);
if (a->w) {
/* writeback */
if (!a->p) {
tcg_gen_addi_i32(addr, addr, offset);
}
store_reg(s, a->rn, addr);
} else {
tcg_temp_free_i32(addr);
}
}
static TCGv_i32 memory_to_fp_sysreg(DisasContext *s, void *opaque)
{
arg_vldr_sysreg *a = opaque;
uint32_t offset = a->imm;
TCGv_i32 addr;
TCGv_i32 value = tcg_temp_new_i32();
if (!a->a) {
offset = - offset;
}
addr = load_reg(s, a->rn);
if (a->p) {
tcg_gen_addi_i32(addr, addr, offset);
}
if (s->v8m_stackcheck && a->rn == 13 && a->w) {
gen_helper_v8m_stackcheck(cpu_env, addr);
}
gen_aa32_ld_i32(s, value, addr, get_mem_index(s),
MO_UL | MO_ALIGN | s->be_data);
if (a->w) {
/* writeback */
if (!a->p) {
tcg_gen_addi_i32(addr, addr, offset);
}
store_reg(s, a->rn, addr);
} else {
tcg_temp_free_i32(addr);
}
return value;
}
static bool trans_VLDR_sysreg(DisasContext *s, arg_vldr_sysreg *a)
{
if (!arm_dc_feature(s, ARM_FEATURE_V8_1M)) {
return false;
}
if (a->rn == 15) {
return false;
}
return gen_M_fp_sysreg_write(s, a->reg, memory_to_fp_sysreg, a);
}
static bool trans_VSTR_sysreg(DisasContext *s, arg_vldr_sysreg *a)
{
if (!arm_dc_feature(s, ARM_FEATURE_V8_1M)) {
return false;
}
if (a->rn == 15) {
return false;
}
return gen_M_fp_sysreg_read(s, a->reg, fp_sysreg_to_memory, a);
}
static bool trans_VMOV_half(DisasContext *s, arg_VMOV_single *a)
{

10
target/arm/translate.h
View File

@ -136,6 +136,11 @@ static inline int negate(DisasContext *s, int x)
return -x;
}
static inline int plus_1(DisasContext *s, int x)
{
return x + 1;
}
static inline int plus_2(DisasContext *s, int x)
{
return x + 2;
@ -151,6 +156,11 @@ static inline int times_4(DisasContext *s, int x)
return x * 4;
}
static inline int times_2_plus_1(DisasContext *s, int x)
{
return x * 2 + 1;
}
static inline int arm_dc_feature(DisasContext *dc, int feature)
{
return (dc->features & (1ULL << feature)) != 0;

14
target/arm/vfp.decode
View File

@ -84,20 +84,6 @@ VLDR_VSTR_hp ---- 1101 u:1 .0 l:1 rn:4 .... 1001 imm:8 vd=%vd_sp
VLDR_VSTR_sp ---- 1101 u:1 .0 l:1 rn:4 .... 1010 imm:8 vd=%vd_sp
VLDR_VSTR_dp ---- 1101 u:1 .0 l:1 rn:4 .... 1011 imm:8 vd=%vd_dp
# M-profile VLDR/VSTR to sysreg
%vldr_sysreg 22:1 13:3
%imm7_0x4 0:7 !function=times_4
&vldr_sysreg rn reg imm a w p
@vldr_sysreg .... ... . a:1 . . . rn:4 ... . ... .. ....... \
reg=%vldr_sysreg imm=%imm7_0x4 &vldr_sysreg
# P=0 W=0 is SEE "Related encodings", so split into two patterns
VLDR_sysreg ---- 110 1 . . w:1 1 .... ... 0 111 11 ....... @vldr_sysreg p=1
VLDR_sysreg ---- 110 0 . . 1 1 .... ... 0 111 11 ....... @vldr_sysreg p=0 w=1
VSTR_sysreg ---- 110 1 . . w:1 0 .... ... 0 111 11 ....... @vldr_sysreg p=1
VSTR_sysreg ---- 110 0 . . 1 0 .... ... 0 111 11 ....... @vldr_sysreg p=0 w=1
# We split the load/store multiple up into two patterns to avoid
# overlap with other insns in the "Advanced SIMD load/store and 64-bit move"
# grouping:

20
tcg/tcg-op-gvec.c
View File

@ -386,7 +386,7 @@ uint64_t (dup_const)(unsigned vece, uint64_t c)
}
/* Duplicate IN into OUT as per VECE. */
static void gen_dup_i32(unsigned vece, TCGv_i32 out, TCGv_i32 in)
void tcg_gen_dup_i32(unsigned vece, TCGv_i32 out, TCGv_i32 in)
{
switch (vece) {
case MO_8:
@ -404,7 +404,7 @@ static void gen_dup_i32(unsigned vece, TCGv_i32 out, TCGv_i32 in)
}
}
static void gen_dup_i64(unsigned vece, TCGv_i64 out, TCGv_i64 in)
void tcg_gen_dup_i64(unsigned vece, TCGv_i64 out, TCGv_i64 in)
{
switch (vece) {
case MO_8:
@ -578,15 +578,15 @@ static void do_dup(unsigned vece, uint32_t dofs, uint32_t oprsz,
&& (vece != MO_32 || !check_size_impl(oprsz, 4))) {
t_64 = tcg_temp_new_i64();
tcg_gen_extu_i32_i64(t_64, in_32);
gen_dup_i64(vece, t_64, t_64);
tcg_gen_dup_i64(vece, t_64, t_64);
} else {
t_32 = tcg_temp_new_i32();
gen_dup_i32(vece, t_32, in_32);
tcg_gen_dup_i32(vece, t_32, in_32);
}
} else if (in_64) {
/* We are given a 64-bit variable input. */
t_64 = tcg_temp_new_i64();
gen_dup_i64(vece, t_64, in_64);
tcg_gen_dup_i64(vece, t_64, in_64);
} else {
/* We are given a constant input. */
/* For 64-bit hosts, use 64-bit constants for "simple" constants
@ -1311,14 +1311,14 @@ void tcg_gen_gvec_2s(uint32_t dofs, uint32_t aofs, uint32_t oprsz,
} else if (g->fni8 && check_size_impl(oprsz, 8)) {
TCGv_i64 t64 = tcg_temp_new_i64();
gen_dup_i64(g->vece, t64, c);
tcg_gen_dup_i64(g->vece, t64, c);
expand_2s_i64(dofs, aofs, oprsz, t64, g->scalar_first, g->fni8);
tcg_temp_free_i64(t64);
} else if (g->fni4 && check_size_impl(oprsz, 4)) {
TCGv_i32 t32 = tcg_temp_new_i32();
tcg_gen_extrl_i64_i32(t32, c);
gen_dup_i32(g->vece, t32, t32);
tcg_gen_dup_i32(g->vece, t32, t32);
expand_2s_i32(dofs, aofs, oprsz, t32, g->scalar_first, g->fni4);
tcg_temp_free_i32(t32);
} else {
@ -2538,7 +2538,7 @@ void tcg_gen_gvec_ands(unsigned vece, uint32_t dofs, uint32_t aofs,
TCGv_i64 c, uint32_t oprsz, uint32_t maxsz)
{
TCGv_i64 tmp = tcg_temp_new_i64();
gen_dup_i64(vece, tmp, c);
tcg_gen_dup_i64(vece, tmp, c);
tcg_gen_gvec_2s(dofs, aofs, oprsz, maxsz, tmp, &gop_ands);
tcg_temp_free_i64(tmp);
}
@ -2562,7 +2562,7 @@ void tcg_gen_gvec_xors(unsigned vece, uint32_t dofs, uint32_t aofs,
TCGv_i64 c, uint32_t oprsz, uint32_t maxsz)
{
TCGv_i64 tmp = tcg_temp_new_i64();
gen_dup_i64(vece, tmp, c);
tcg_gen_dup_i64(vece, tmp, c);
tcg_gen_gvec_2s(dofs, aofs, oprsz, maxsz, tmp, &gop_xors);
tcg_temp_free_i64(tmp);
}
@ -2586,7 +2586,7 @@ void tcg_gen_gvec_ors(unsigned vece, uint32_t dofs, uint32_t aofs,
TCGv_i64 c, uint32_t oprsz, uint32_t maxsz)
{
TCGv_i64 tmp = tcg_temp_new_i64();
gen_dup_i64(vece, tmp, c);
tcg_gen_dup_i64(vece, tmp, c);
tcg_gen_gvec_2s(dofs, aofs, oprsz, maxsz, tmp, &gop_ors);
tcg_temp_free_i64(tmp);
}