Begin replacing the Berkeley float128 routines with FloatParts128.
- includes a new implementation of float128_muladd
- includes the snan silencing that was missing from
float{32,64}_to_float128 and float128_to_float{32,64}.
- does not include float128_min/max* (written but not yet reviewed).
-----BEGIN PGP SIGNATURE-----
iQFRBAABCgA7FiEEekgeeIaLTbaoWgXAZN846K9+IV8FAmChD54dHHJpY2hhcmQu
aGVuZGVyc29uQGxpbmFyby5vcmcACgkQZN846K9+IV94uAgApJMxVvkRkDuyOXG2
cM0dC+GQQ0prm5id2AW2JREiET+jo2NV7uU8IQGEQq3rtG8trws45gMQFgSRYJk2
sLlAIt4QqD6qzb2H9z+JhOx1yITlsuwrvr+BAwVtK7gw6l4LxKAs35SwWpz/Z5/2
R63bLyontVzzi40Bc4pB/h3CxdOR+UjZ2a2kDIZFuI/j+9pnPoEL/Vp9XMg85ex+
g21rRwE6qv4hrGMhej5YBKQoleoieL3FQ0sXQLi5lLNYejBpU45PjdgdEwbZIBhT
4sQkzV2HRrd84OrQIJU3Jd+zHZoSq6JQUZRSGAnqC7Mvigplo24J5GRjh6T8WoaI
y495Lg==
=MR2G
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/rth-gitlab/tags/pull-fp-20210516' into staging
Reorg FloatParts to use QEMU_GENERIC.
Begin replacing the Berkeley float128 routines with FloatParts128.
- includes a new implementation of float128_muladd
- includes the snan silencing that was missing from
float{32,64}_to_float128 and float128_to_float{32,64}.
- does not include float128_min/max* (written but not yet reviewed).
# gpg: Signature made Sun 16 May 2021 13:27:10 BST
# gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg: issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F
* remotes/rth-gitlab/tags/pull-fp-20210516: (46 commits)
softfloat: Move round_to_int_and_pack to softfloat-parts.c.inc
softfloat: Move round_to_int to softfloat-parts.c.inc
softfloat: Convert float-to-float conversions with float128
softfloat: Split float_to_float
softfloat: Move div_floats to softfloat-parts.c.inc
softfloat: Introduce sh[lr]_double primitives
softfloat: Tidy mul128By64To192
softfloat: Use add192 in mul128To256
softfloat: Use mulu64 for mul64To128
softfloat: Move muladd_floats to softfloat-parts.c.inc
softfloat: Move mul_floats to softfloat-parts.c.inc
softfloat: Implement float128_add/sub via parts
softfloat: Move addsub_floats to softfloat-parts.c.inc
softfloat: Use uadd64_carry, usub64_borrow in softfloat-macros.h
softfloat: Move round_canonical to softfloat-parts.c.inc
softfloat: Move sf_canonicalize to softfloat-parts.c.inc
softfloat: Move pick_nan_muladd to softfloat-parts.c.inc
softfloat: Move pick_nan to softfloat-parts.c.inc
softfloat: Move return_nan to softfloat-parts.c.inc
softfloat: Convert float128_default_nan to parts
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
- drop block/io write notifiers
- qemu-iotests enhancements to make debugging easier
- rbd parsing fix
- HMP qemu-io fix (for iothreads)
- mirror job cancel relaxation (do not cancel in-flight requests when a
READY mirror job is canceled with force=false)
- document qcow2's data_file and data_file_raw features
- fix iotest 297 for pylint 2.8
- block/copy-on-read refactoring
-----BEGIN PGP SIGNATURE-----
iQFGBAABCAAwFiEEkb62CjDbPohX0Rgp9AfbAGHVz0AFAmCeqLwSHG1yZWl0ekBy
ZWRoYXQuY29tAAoJEPQH2wBh1c9A9pMIAKYIlLQfSSMdy0fZ+6AHiAjaTZAaDr4G
d6NDz/RONZEoxcl01LkUWJfvqH/IdCLx5q4cl9SU4+JzMdKW9K1xBLdAGousuhk/
geYqymbORj/VntJDYwp30KUlC0pLUBbuuzYN+QXrLp5qJvS9nPBcxEPjfSc6GX9z
Bt+GCRW08+C4WKJ3lGu9zNGe47gTFUE/VodUYG4tKg5xZFzsAWd/PZZaVOdW0fCz
/0tdxN4N82XT+cE/lA0Tm6B6L3ZueMAt8byu4BPz21M7kULNn2roVMiFKJELZlZQ
0RyDXH2jb/aH/ha6gJ4S+JhMvq45rH9GuQeAYl6IPngbta+NbZW+U4w=
=+Kha
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2021-05-14' into staging
Block patches:
- drop block/io write notifiers
- qemu-iotests enhancements to make debugging easier
- rbd parsing fix
- HMP qemu-io fix (for iothreads)
- mirror job cancel relaxation (do not cancel in-flight requests when a
READY mirror job is canceled with force=false)
- document qcow2's data_file and data_file_raw features
- fix iotest 297 for pylint 2.8
- block/copy-on-read refactoring
# gpg: Signature made Fri 14 May 2021 17:43:40 BST
# gpg: using RSA key 91BEB60A30DB3E8857D11829F407DB0061D5CF40
# gpg: issuer "mreitz@redhat.com"
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>" [full]
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1 1829 F407 DB00 61D5 CF40
* remotes/maxreitz/tags/pull-block-2021-05-14:
write-threshold: deal with includes
test-write-threshold: drop extra TestStruct structure
test-write-threshold: drop extra tests
block/write-threshold: drop extra APIs
test-write-threshold: rewrite test_threshold_(not_)trigger tests
block: drop write notifiers
block/write-threshold: don't use write notifiers
qemu-iotests: fix pylint 2.8 consider-using-with error
block/copy-on-read: use bdrv_drop_filter() and drop s->active
Document qemu-img options data_file and data_file_raw
qemu-iotests: fix case of SOCK_DIR already in the environment
qemu-iotests: let "check" spawn an arbitrary test command
qemu-iotests: move command line and environment handling from TestRunner to TestEnv
qemu-iotests: allow passing unittest.main arguments to the test scripts
qemu-iotests: do not buffer the test output
mirror: stop cancelling in-flight requests on non-force cancel in READY
monitor: hmp_qemu_io: acquire aio contex, fix crash
block/rbd: Add an escape-aware strchr helper
iotests/231: Update expected deprecation message
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Fixes all over the place. Faster boot for virtio. ioeventfd support for
mmio.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-----BEGIN PGP SIGNATURE-----
iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAmCeiMEPHG1zdEByZWRo
YXQuY29tAAoJECgfDbjSjVRpqsIH/A49Av5Bv8huL75lf9GzCx3E1a/z2W9Fphik
OcQ1ahR+7CRDARub+vTG40MBmZBVefIWjLAj3BwBWzFGPX0DZq0zeI102VzlEVKY
OeUx8ixuiKOSLcS+QxE7ZXIBL2Pn7l+MFUi4nLMYKti7c/kola7zlB57qsmXh+VD
AOQ7Utj6NWoi6QocWJsMSCyHCh3Fk9QzcStLlr6/MkSJa1zqv8l22+8oWH07Fk2M
wZfhrm9k094on28iSejsFYL5e4ROeXUajbOdfyMIxWvAB7boC9Jxk/e0oAbuSB4y
2f71Gfk3mU6irS7PvrxcKbk6BVD2zxM2WumOchZJgxFAujDO6yg=
=fvkT
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pc,pci,virtio: bugfixes, improvements
Fixes all over the place. Faster boot for virtio. ioeventfd support for
mmio.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Fri 14 May 2021 15:27:13 BST
# gpg: using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg: issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67
# Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469
* remotes/mst/tags/for_upstream:
Fix build with 64 bits time_t
vhost-vdpa: Make vhost_vdpa_get_device_id() static
hw/virtio: enable ioeventfd configuring for mmio
hw/smbios: support for type 41 (onboard devices extended information)
checkpatch: Fix use of uninitialized value
virtio-scsi: Configure all host notifiers in a single MR transaction
virtio-scsi: Set host notifiers and callbacks separately
virtio-blk: Configure all host notifiers in a single MR transaction
virtio-blk: Fix rollback path in virtio_blk_data_plane_start()
pc-dimm: remove unnecessary get_vmstate_memory_region() method
amd_iommu: fix wrong MMIO operations
virtio-net: Constify VirtIOFeature feature_sizes[]
virtio-blk: Constify VirtIOFeature feature_sizes[]
hw/virtio: Pass virtio_feature_get_config_size() a const argument
x86: acpi: use offset instead of pointer when using build_header()
amd_iommu: Fix pte_override_page_mask()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
# Conflicts:
# hw/arm/virt.c
To better visualize the data dumped at the end of a TB, left-align it
(padding it with 0). Print ".long" instead of ".quad" on 32-bit hosts.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210515104202.241504-1-f4bug@amsat.org>
[rth: Split the qemu_log and print .long for 32-bit hosts.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Rename to parts$N_float_to_sint. Reimplement
float128_to_int{32,64}{_round_to_zero} with FloatParts128.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
At the same time, convert to pointers, split out
parts$N_round_to_int_normal, define a macro for
parts_round_to_int using QEMU_GENERIC.
This necessarily meant some rearrangement to the
rount_to_{,u}int_and_pack routines, so go ahead and
convert to parts_round_to_int_normal, which in turn
allows cleaning up of the raised exception handling.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Introduce parts_float_to_float_widen and parts_float_to_float_narrow.
Use them for float128_to_float{32,64} and float{32,64}_to_float128.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Split out parts_float_to_ahp and parts_float_to_float.
Convert to pointers.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Rename to parts$N_div.
Implement float128_div with FloatParts128.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Have x86_64 assembly for them, with a fallback.
This avoids shuffling values through %cl in the x86 case.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Clean up the formatting and variables; no functional change.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We can perform the operation in 6 total adds instead of 8.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Via host-utils.h, we use a host widening multiply for
64-bit hosts, and a common subroutine for 32-bit hosts.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Rename to parts$N_muladd.
Implement float128_muladd with FloatParts128.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Rename to parts$N_mul.
Reimplement float128_mul with FloatParts128.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Replace the existing Berkeley implementation with the
FloatParts implementation.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
In preparation for implementing multiple sizes. Rename to parts_addsub,
split out parts_add/sub_normal for future reuse with muladd.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use compiler support for carry arithmetic.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
At the same time, convert to pointers, renaming to parts$N_uncanon,
and define a macro for parts_uncanon using QEMU_GENERIC.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
At the same time, convert to pointers, rename to parts$N_canonicalize
and define a macro for parts_canonicalize using QEMU_GENERIC.
Rearrange the cases to recognize float_class_normal as
early as possible.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
At the same time, convert to pointers, rename to pick_nan_muladd$N
and define a macro for pick_nan_muladd using QEMU_GENERIC.
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
At the same time, convert to pointers, rename to parts$N_pick_nan
and define a macro for parts_pick_nan using QEMU_GENERIC.
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
At the same time, convert to pointers, rename to return_nan$N
and define a macro for return_nan using QEMU_GENERIC.
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This is the minimal change that also introduces float128_params,
float128_unpack_raw, and float128_pack_raw without running into
unused symbol Werrors.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Shuffle the fraction to the end, otherwise sort by size.
Add frac_hi and frac_lo members to alias frac.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
At the same time, rename to parts64_silence_nan, split out
parts_silence_nan_frac, and define a macro for parts_silence_nan.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
At the same time, rename to pack_raw64.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
At the same time, rename to unpack_raw64.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
At the same time, rename to parts64_default_nan and add a
macro for parts_default_nan. This will be flushed out once
128-bit support is added.
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
In preparation from moving sf_canonicalize.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Require default_nan_mode to be set instead.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This behavior is currently hard-coded in parts_silence_nan,
but setting this bit properly will allow this to be cleaned up.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Do not call parts_silence_nan when default_nan_mode is in
effect. This will avoid an assert in a later patch.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Testing more than one class at a time is better done with masks.
This reduces the static branch count.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
No reason to set values in 'a', when we already
have float_class_inf in 'c', and can flip that sign.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We have been somewhat inconsistent about when to use
float_raise and when to or in the bit by hand.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Rather than point the binary point at msb-1, put it at the msb.
Use uadd64_overflow to detect when addition overflows instead
of DECOMPOSED_OVERFLOW_BIT.
This reduces the number of special cases within the code, such
as shifting an int64_t either left or right during conversion.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Currently this only support softfloat calculations because working out
if the hardware supports 128 bit floats needs configure magic. The 3
op muladd operation is currently unimplemented so commented out for
now.
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20201020163738.27700-8-alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Obvious uses of the new functions.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
These builtins came in clang 3.8, but are not present in gcc through
version 11. Even in clang the optimization is only ideal on x86_64,
but never worse than the hand-coding that we currently do.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
