Let's detect normal and denormal ("subnormal") numbers reliably. Also
test for quiet NaN's. As only one class is possible, test common cases
first.
While at it, use a better check to test for the mask bits in the data
class mask. The data class mask has 12 bits, whereby bit 0 is the
leftmost bit and bit 11 the rightmost bit. In the PoP an easy to read
table with the numbers is provided for the VECTOR FP TEST DATA CLASS
IMMEDIATE instruction, the table for TEST DATA CLASS is more confusing
as it is based on 64 bit values.
Factor the checks out into separate functions, as they will also be
needed for floating point vector instructions. We can use a makro to
generate the functions.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190218122710.23639-2-david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Use a new CC helper to calculate the CC lazily if needed. While the
PoP mentions that "A 32-bit unsigned binary integer" is placed into the
first operand, there is no word telling that the other 32 bits (high
part) are left untouched. Maybe the other 32-bit are unpredictable.
So store 64 bit for now.
Bit magic courtesy of Richard.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190225200318.16102-8-david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Nice trick to load a 32 bit value into vector element 0 (32 bit element
size) from memory, zeroing out element1. The short HFP to long HFP
conversion really only is a shift.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190225200318.16102-7-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Also properly wrap in 24bit mode. While at it, convert the comment (and
drop the comment about fundamental TCG optimizations).
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190225200318.16102-6-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
We'll use that a lot along with gvec helpers, to calculate the start
address of a vector.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190225200318.16102-5-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
We will use s390x speak "Element Size" (es) for MO_8 == 0, MO_16 == 1
... Simple rename of variables.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190225200318.16102-4-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Will be needed, so add it to the format description.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190225200318.16102-2-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Let's update the vfio-ap.txt document to include the hot plug/unplug
support.
Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Message-Id: <1550519397-25359-3-git-send-email-akrowiak@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Introduces hot plug/unplug support for the vfio-ap device.
To hot plug a vfio-ap device using the QEMU device_add command:
(qemu) device_add vfio-ap,sysfsdev=$path-to-mdev
Where $path-to-mdev is the absolute path to the mediated matrix device
to which AP resources to be used by the guest have been assigned.
A vfio-ap device can be hot plugged only if:
1. A vfio-ap device has not been attached to the virtual machine's ap-bus
via the QEMU command line or a prior hot plug action.
2. The guest was started with the CPU model feature for AP enabled
(e.g., -cpu host,ap=on)
To hot unplug a vfio-ap device using the QEMU device_del command:
(qemu) device_del vfio-ap,sysfsdev=$path-to-mdev
Where $path-to-mdev is the absolute path to the mediated matrix device
specified when the vfio-ap device was attached to the virtual machine's
ap-bus.
A vfio-ap device can be hot unplugged only if:
1. A vfio-ap device has been attached to the virtual machine's ap-bus
via the QEMU command line or a prior hot plug action.
2. The guest was started with the CPU model feature for AP enabled
(e.g., -cpu host,ap=on)
Please note that a hot plug handler is not necessary for the vfio-ap device
because the AP matrix configuration for the guest is performed by the
kernel device driver when the vfio-ap device is realized. The vfio-ap device
represents a VFIO mediated device created in the host sysfs for use by a guest.
The mdev device is configured with an AP matrix (i.e., adapters and domains) via
its sysfs attribute interfaces prior to starting the guest or plugging a vfio-ap
device in. When the device is realized, a file descriptor is opened on the mdev
device which results in a callback to the vfio_ap kernel device driver. The
device driver then configures the AP matrix in the guest's SIE state description
from the AP matrix assigned via the mdev device's sysfs interfaces. The AP
devices will be created for the guest when the AP bus running on the guest
subsequently performs its periodic scan for AP devices.
The qdev_simple_device_unplug_cb() callback function is used for the same
reaons; namely, the vfio_ap kernel device driver will perform the AP resource
de-configuration for the guest when the vfio-ap device is unplugged. When the
vfio-ap device is unrealized, the mdev device file descriptor is closed which
results in a callback to the vfio_ap kernel device driver. The device driver
then clears the AP matrix configuration in the guest's SIE state description
and resets all of the affected queues. The AP devices created for the guest
will be removed when the AP bus running on the guest subsequently performs
its periodic scan and finds there are no longer any AP resources assigned to the
guest.
Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
Tested-by: Pierre Morel <pmorel@linux.ibm.com>
Message-Id: <1550519397-25359-2-git-send-email-akrowiak@linux.ibm.com>
[CH: adapt to changed qbus_set_hotplug_handler() signature]
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
If we have vector registers and the designation is not zero, we have
to try to write the vector registers. If the designation is zero or
if storing fails, we must not indicate validity. s390_build_validity_mcic()
automatically already sets validity if the vector instruction facility
is installed.
As long as we don't support the guarded-storage facility, the alignment
and size of the area is always 1024 bytes.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190222081153.14206-4-david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Convert this to QEMU style.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190222081153.14206-3-david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
As we will support vector instructions soon, and vector registers are
stored in 64bit host chunks, let's use cpu_to_be64. Same applies to the
guarded storage control block.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190222081153.14206-2-david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This was changed a little bit since my post on Feb 20 (to which
there were no comments) due to changes I had to work around:
Change b296b664ab "smbus: Add a helper to generate SPD EEPROM
data" added a function to include/hw/i2c/smbus.h, which I had to move to
include/hw/smbus_eeprom.h.
There were some changes to hw/i2c/Makefile.objs that I had to fix up.
Beyond that, no changes.
Thanks,
-corey
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krnc4CNhfmyiJxd7GvVA23GHUgC4jMOq6P0qlUu2XcDDQC/jnbs=
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Merge remote-tracking branch 'remotes/cminyard/tags/i2c-for-release-20190228' into staging
This has been out there long enough, I need to get this in.
This was changed a little bit since my post on Feb 20 (to which
there were no comments) due to changes I had to work around:
Change b296b664ab "smbus: Add a helper to generate SPD EEPROM
data" added a function to include/hw/i2c/smbus.h, which I had to move to
include/hw/smbus_eeprom.h.
There were some changes to hw/i2c/Makefile.objs that I had to fix up.
Beyond that, no changes.
Thanks,
-corey
# gpg: Signature made Thu 28 Feb 2019 18:05:49 GMT
# gpg: using RSA key FD0D5CE67CE0F59A6688268661F38C90919BFF81
# gpg: Good signature from "Corey Minyard <cminyard@mvista.com>" [unknown]
# gpg: aka "Corey Minyard <minyard@acm.org>" [unknown]
# gpg: aka "Corey Minyard <corey@minyard.net>" [unknown]
# gpg: aka "Corey Minyard <minyard@mvista.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: FD0D 5CE6 7CE0 F59A 6688 2686 61F3 8C90 919B FF81
* remotes/cminyard/tags/i2c-for-release-20190228:
i2c: Verify that the count passed in to smbus_eeprom_init() is valid
i2c:smbus_eeprom: Add a reset function to smbus_eeprom
i2c:smbus_eeprom: Add vmstate handling to the smbus eeprom
i2c:smbus_eeprom: Add a size constant for the smbus_eeprom size
i2c:smbus_eeprom: Add normal type name and cast to smbus_eeprom.c
i2c:smbus_slave: Add an SMBus vmstate structure
i2c:pm_smbus: Fix state transfer
migration: Add a VMSTATE_BOOL_TEST() macro
i2c:pm_smbus: Fix pm_smbus handling of I2C block read
boards.h: Ignore migration for SMBus devices on older machines
i2c:smbus: Make white space in switch statements consistent
i2c:smbus_eeprom: Get rid of the quick command
i2c:smbus: Simplify read handling
i2c:smbus: Simplify write operation
i2c:smbus: Correct the working of quick commands
i2c: Don't check return value from i2c_recv()
arm:i2c: Don't mask return from i2c_recv()
i2c: have I2C receive operation return uint8_t
i2c: Split smbus into parts
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
- Re-enable the guest-agent test
- Add the possibility to load a bios image on the mcf5208evb machine
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Version: GnuPG v2.0.22 (GNU/Linux)
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vaehdDS135MQupk0bcDB/EVCgCQ/OAIQ1+vn224zbBea78ZdkjohlN7skW+o+HVP
fC0FIIqQkLGnK/nfmXz7Lj/wEQRTYuoC7SZGiFDRsyd56S/09FcNLZsre+CTytUX
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nOP4B3D8nXjYigZ5Cx7Dotdk9VVOznH55M1RVEsAnzTT26wDAg2Qa7Zd1tR/eG5E
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XLotEtlcdycHLBxWtAlVLhm3/D2Shlwc+QjKsPXhNmZ+fHa4cJ4vY7AR3h9+Td5E
5zv40ibH5G4dx6/qpetFfN9bkfYEodhyxQb1XguKfDMAPu0SRg4hSWY9xrwwGfiS
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=Lzgr
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Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2019-02-28' into staging
- Updates to MAINTAINERS file
- Re-enable the guest-agent test
- Add the possibility to load a bios image on the mcf5208evb machine
# gpg: Signature made Thu 28 Feb 2019 12:23:25 GMT
# gpg: using RSA key 2ED9D774FE702DB5
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg: aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg: aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5
* remotes/huth-gitlab/tags/pull-request-2019-02-28:
hw/m68k/mcf5208: Support loading of bios images
tests/test-qga: Reenable guest-agent qtest
MAINTAINERS: Clean up the RISC-V TCG backend section
MAINTAINERS: Add some missing entries for the sun4m machine
MAINTAINERS: Add maintainer to the TCG/i386 subsystem
MAINTAINERS: Add maintainers to the Linux subsystem
MAINTAINERS: Orphanize the 'GDB stub' subsystem
MAINTAINERS: Add maintainer to the POSIX subsystem
MAINTAINERS: Add an entry for the Dino machine
MAINTAINERS: Add missing test entries to the Cryptography section
MAINTAINERS: Add missing entries for the QObject section
MAINTAINERS: Add missing entries for the PC machines
MAINTAINERS: Add missing entries for the sun4u machines
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* add MHU and dual-core support to Musca boards
* refactor some VFP insns to be gated by ID registers
* Revert "arm: Allow system registers for KVM guests to be changed by QEMU code"
* Implement ARMv8.2-FHM extension
* Advertise JSCVT via HWCAP for linux-user
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xDnEwN8Ath5jhcIlwjB4sPg44wO1dTy9PXK75UskGbUXnJfl4VFQsTVOg6GELVPc
RJJ7S1hBjaipRxaS7tgBl+sE03JFSFniGaYuU5cpwxh62HWlZRBZ85+Pw3iNb9So
UgrnQeThPNb9STKt2x0T8TvgjmwuS6fRYqA0DSVqUWT7FRNgIpfJ+dVkGxAhC8Mh
YJVmLfR1Z/HS3lWRHkZHDBkv036by7XnrRdTEb7yftNflmFHaX0OdSO/4+Uueslf
Lz9uem7LUOwnz9x0tBDSdaUrfJ4hmJSNXZhoeINR0V4MUKQBVWvRUrlfymRlFL15
SlI7i19FS0OleFTZs26TflGutgLwvMTRzAvhVR/F+pBqlYs1UxvNk4eMPLZFYPuc
OlRsgoUUtmF722TjW2l+Uewixo22AMatyv9VsiR6Ut7etmLIj8HHABkDX5kQbqFc
wz60pkUvPcywGGATaMImQJ+uoHOTXZhegBPyfYZYhbTVXshjvEYxFSLtmfhoyVAo
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n2tWg1Gzt/KjeM0md8B/Lg==
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20190228-1' into staging
target-arm queue:
* add MHU and dual-core support to Musca boards
* refactor some VFP insns to be gated by ID registers
* Revert "arm: Allow system registers for KVM guests to be changed by QEMU code"
* Implement ARMv8.2-FHM extension
* Advertise JSCVT via HWCAP for linux-user
# gpg: Signature made Thu 28 Feb 2019 11:06:55 GMT
# 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-20190228-1:
linux-user: Enable HWCAP_ASIMDFHM, HWCAP_JSCVT
target/arm: Enable ARMv8.2-FHM for -cpu max
target/arm: Implement VFMAL and VFMSL for aarch32
target/arm: Implement FMLAL and FMLSL for aarch64
target/arm: Add helpers for FMLAL
Revert "arm: Allow system registers for KVM guests to be changed by QEMU code"
target/arm: Gate "miscellaneous FP" insns by ID register field
target/arm: Use MVFR1 feature bits to gate A32/T32 FP16 instructions
hw/arm/armsse: Unify init-svtor and cpuwait handling
hw/arm/iotkit-sysctl: Implement CPUWAIT and INITSVTOR*
hw/arm/iotkit-sysctl: Add SSE-200 registers
hw/misc/iotkit-sysctl: Correct typo in INITSVTOR0 register name
target/arm/arm-powerctl: Add new arm_set_cpu_on_and_reset()
target/arm/cpu: Allow init-svtor property to be set after realize
hw/arm/armsse: Wire up the MHUs
hw/misc/armsse-mhu.c: Model the SSE-200 Message Handling Unit
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The locally allocated QDict-s need to be freed. ('file_layer' will be
freed implicitly since it is added as an object to 'driver_layer').
Spotted by Coverity: CID 1398649
While in the neighbourhood free 'driver' and 'filename' as soon as they are
added to the QDicts. Freeing after the 'done' label doesn't make that much
sense as, if the error path jumps to that label, the values would be NULL
anyway.
This patch also makes that more obvious by taking the error path if
'params' is NULL and then asserting that both driver and filename are
non-NULL in the normal path.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Message-Id: <20190219163440.15702-1-paul.durrant@citrix.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
The function needs to make sure it is passed a valid disk name. This is
easily done by making sure that the parsing loop results in a non-zero
value.
Spotted by Coverity: CID 1398640
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <20190215162533.19475-4-paul.durrant@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
The assignment to 'p' is unnecessary as the code will either goto 'invalid'
or p will get overwritten.
Spotted by Coverity: CID 1398638
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <20190215162533.19475-3-paul.durrant@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
The if() statement is clearly bogus (dead code which should have been
cleaned up when grant mapping was removed).
Spotted by Coverity: CID 1398635
While in the neighbourhood, add a missing 'fall through' annotation.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <20190215162533.19475-2-paul.durrant@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
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Version: GnuPG v1
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5HDeyubff8bMKBzTUWFuM1J8t0uuQsRDqR61WptQ0rxf5Qf9Uiv9OcAww+LIENI=
=9h9l
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Merge remote-tracking branch 'remotes/amarkovic/tags/mips-queue-feb-27-2019' into staging
MIPS queue for February 27th, 2019
# gpg: Signature made Wed 27 Feb 2019 13:27:36 GMT
# gpg: using RSA key D4972A8967F75A65
# gpg: Good signature from "Aleksandar Markovic <amarkovic@wavecomp.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 8526 FBF1 5DA3 811F 4A01 DD75 D497 2A89 67F7 5A65
* remotes/amarkovic/tags/mips-queue-feb-27-2019:
target/mips: Preparing for adding MMI instructions
tests/tcg: target/mips: Add tests for MSA integer max/min instructions
tests/tcg: target/mips: Add wrappers for MSA integer max/min instructions
qemu-doc: Add section on MIPS' Boston board
qemu-doc: Add section on MIPS' Fulong 2E board
qemu-doc: Move section on MIPS' mipssim pseudo board
disas: nanoMIPS: Fix a function misnomer
tests/tcg: target/mips: Add tests for MSA integer compare instructions
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Make windowed register tests conditional on the presence of this option.
Fix tests to work correctly for both 32 and 64 physical registers.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Make s32c1i tests conditional on the presence of this option. Initialize
ATOMCTL SR when it's present to allow RCW transactions on uncached
memory.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
SR tests generate instructions that the assembler does not recognize and
thus must take care about configuration endianness.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Make tests for specific special registers conditional on the presence of
the options that add these registers and test that the registers are not
accessible otherwise.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Make timer/CCOUNT tests conditional on the presence of timer option and
number of configured timers. Don't use hard coded interrupt levels for
timers, use configured values.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Make interrupt tests conditional on the presence of interrupt option and
on the presence of level-1 and high level software interrupts. Don't use
hard-coded interrupt level for the high level interrupt tests, choose
high level software IRQ and use its configured level.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Make tests for optional instruction groups conditional on the presence
of corresponding options in the config.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Make data/instruction tests conditional on the presence of
data/instruction cache, whether they're lockable and whether data cache
is writeback.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Make debug tests conditional on the presence of the debug option in the
config and tests that depend on the presence/number of instruction or
data breakpoint registers on the corresponding definitions. Use
configured debug interrupt level instead of the hardcoded value to set
up IRQ handler and access debug EPC register.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Uncomment test_boolean in the test makefile. Make actual tests code
conditional on the presence of boolean option in the config.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Use bbci.l/bbsi.l instead of bbci/bbsi, as they are assembly macros that
accept little-endian bit number and produce correct immediate for both
little and big endian configurations. Choose value loaded into register
for bbc/bbs opcodes based on configuration endianness.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Don't use 'loop' opcode in generic testsuite completion code, only use
core opcodes to make it work with any configuration.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Configurations with LITBASE register may use absolute literals by
default. Pass --no-absolute-literals option to assembler to use
PC-relative literals instead.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Configurations w/o vecbase may have vectors not grouped together and not
in fixed order. They may not always be grouped into single output
sections by assigning next offset to dot, as it may sometimes move dot
backwards and sometimes they may even belong to different memory region.
Don't group vectors into single output section. Instead put each vector
into its own section ant put it at its default virtual address.
Reserve 4KBytes from the default vectors base and put rest of the code
and data starting from there. Mark vectors sections as executable,
otherwise their contents is discarded. There may be as little as 16
bytes reserved for some vectors, load handler address into a0 and use
ret.n to jump there to make vector code fit into this 16 byte space.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
When test suite with multiple tests fails it's not obvious which test
failed. Pring "failed" in every invocation of test_fail. Do printing
when DEBUG preprocessor macro is defined.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Load/store opcodes may raise MMU exceptions. Normally exceptions should
be checked in priority order before any actual operations, but since MMU
exceptions are tightly coupled with actual memory access, there's
currently no way to do it.
Approximate this behavior by executing all load, then all store, and
then all other opcodes in the FLIX bundles. Use opcode dependency
mechanism to express ordering. Mark load/store opcodes with
XTENSA_OP_{LOAD,STORE} flags. Newer libisa has classifier functions that
can tell whether opcode is a load or store, but this information is not
available in the existing overlays.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Currently topologic opcode sorting stops at the first detected
dependency loop. Introduce struct opcode_arg_copy that describes
temporary register copy. Scan remaining opcodes searching for
dependencies that can be broken, break them by introducing temporary
register copies and record them in an array. In case of success
create local temporaries and initialize them with current register
values. Share single temporary copy between all register users. Delete
temporaries after translation.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
libisa represents boolean registers b0..b16 as a BR register file and as
BR4 and BR8 register groups. Add these register files and use
OpcodeArg::{in,out} parameters to access boolean registers in
translators.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
