Commit graph

17 commits

Author SHA1 Message Date
Peter Maydell c2c628eb71 target/arm: Add stubs for AArch32 Neon decodetree
Add the infrastructure for building and invoking a decodetree decoder
for the AArch32 Neon encodings. At the moment the new decoder covers
nothing, so we always fall back to the existing hand-written decode.

We follow the same pattern we did for the VFP decodetree conversion
(commit 78e138bc1f672c145ef6ace74617d and following): code that deals
with Neon will be moving gradually out to translate-neon.vfp.inc,
which we #include into translate.c.

In order to share the decode files between A32 and T32, we
split Neon into 3 parts:
* data-processing
* load-store
* 'shared' encodings

The first two groups of instructions have similar but not identical
A32 and T32 encodings, so we need to manually transform the T32
encoding into the A32 one before calling the decoder; the third group
covers the Neon instructions which are identical in A32 and T32.

Backports commit 625e3dd44a15dfbe9532daa6454df3f86cf04d3e from qemu
2020-05-07 08:59:42 -04:00
Richard Henderson 0b2f37afaf
target/arm: Add skeleton for T16 decodetree
Backports commit f97b454e9e7f5d018d34b5ea85a66cff016bd3b7 from qemu
2019-11-28 02:50:27 -05:00
Richard Henderson 9fc793b566
target/arm: Add stubs for aa32 decodetree
Add the infrastructure that will become the new decoder.
No instructions adjusted so far.

Backports commit 51409b9e8cfe997b1ac3365df7400e0c6e844437 from qemu
2019-11-28 02:38:49 -05:00
Philippe Mathieu-Daudé bde186433d
target/arm/helper: Move M profile routines to m_helper.c
In preparation for supporting TCG disablement on ARM, we move most
of TCG related v7m/v8m helpers and APIs into their own file.

Note: It is easier to review this commit using the 'histogram'
diff algorithm:

$ git diff --diff-algorithm=histogram ...
or
$ git diff --histogram ...

Backports commit 7aab5a8c8bb525ea390b4ebc17ab82c0835cfdb6 from qemu
2019-08-08 18:04:08 -04:00
Philippe Mathieu-Daudé 6295fd7156
target/arm: Move debug routines to debug_helper.c
These routines are TCG specific.

Backports commit 9dd5cca42448770a940fa2145f1ff18cdc7b01a9 from qemu
2019-08-08 17:46:56 -04:00
Philippe Mathieu-Daudé 91e264823e
target/arm: Move TLB related routines to tlb_helper.c
These routines are TCG specific.
The arm_deliver_fault() function is only used within the new
helper. Make it static.

Backports commit e21b551cb652663f2f2405a64d63ef6b4a1042b7 from qemu
2019-08-08 15:24:26 -04:00
Philippe Mathieu-Daudé b028a37fdb
target/arm: Makefile cleanup (softmmu)
Group SOFTMMU objects together.
Since PSCI is TCG specific, keep it separate.

Backports commit b601e0cd78c2c57548a468c6fdb566d514c05b89 from qemu
2019-08-08 14:42:00 -04:00
Philippe Mathieu-Daudé 348b813c03
target/arm: Makefile cleanup (ARM)
Group ARM objects together, TCG related ones at the bottom.
This will help when restricting TCG-only objects.

Backports commit 07774d584267488c8c2f104ae5b552791961908a from qemu
2019-08-08 14:39:52 -04:00
Philippe Mathieu-Daudé 5c0cff59f2
target/arm: Makefile cleanup (Aarch64)
Group Aarch64 rules together, TCG related ones at the bottom.
This will help when restricting TCG-only objects.

Backports commit 87f4f183484dba7a460c59e99dac0dbb9f42ed87 from qemu
2019-08-08 14:31:24 -04:00
Peter Maydell 9732ebba5c
target/arm: Add stubs for AArch32 VFP decodetree
Add the infrastructure for building and invoking a decodetree decoder
for the AArch32 VFP encodings. At the moment the new decoder covers
nothing, so we always fall back to the existing hand-written decode.

We need to have one decoder for the unconditional insns and one for
the conditional insns, as otherwise the patterns for conditional
insns would incorrectly match against the unconditional ones too.

Since translate.c is over 14,000 lines long and we're going to be
touching pretty much every line of the VFP code as part of the
decodetree conversion, we create a new translate-vfp.inc.c to hold
the code which deals with VFP in the new scheme. It should be
possible to convert this into a standalone translation unit
eventually, but the conversion process will be much simpler if we
simply #include it midway through translate.c to start with.

Backports commit 78e138bc1f672c145ef6ace74617db00eebaa2ba from qemu
2019-06-13 16:24:37 -04:00
Richard Henderson dbe623dacc
target/arm: Split out vfp_helper.c
Move all of the fp helpers out of helper.c into a new file.
This is code movement only. Since helper.c has no copyright
header, take the one from cpu.h for the new file.

Backports commit 37356079fcdb34e13abbed8ea0c00ca880c31247 from qemu
2019-02-22 18:48:44 -05:00
Richard Henderson e6196b2040
target/arm: Add PAuth helpers
The cryptographic internals are stubbed out for now,
but the enable and trap bits are checked.

Backports commit 0d43e1a2d29a05f7b0d5629caaff18733cbdf3bb from qemu
2019-01-22 15:27:15 -05:00
Lioncash 1eaa2e4571
target/arm: Implement SVE predicate test 2018-05-20 01:16:16 -04:00
Richard Henderson 49def4bbde
target/arm: Add SVE decode skeleton
Including only 4, as-yet unimplemented, instruction patterns
so that the whole thing compiles.

Backports commit 38388f7ee3adc04a7e7246c04352451c4f8d00fb from qemu
2018-05-20 00:48:14 -04:00
Richard Henderson 4f585f71fb
target/arm: Decode aa64 armv8.1 scalar three same extra
Backports commit d9061ec3d27eb940402a7eafee3fb77ce1146ad4 from qemu
2018-03-09 00:02:23 -05:00
Jean-Christophe DUBOIS 0aa0b849c2
ARM: Factor out ARM on/off PSCI control functions
Split ARM on/off function from PSCI support code.

This will allow to reuse these functions in other code.

Backports commit 825482adde1f971cbddf27e15fb4453ab3fae994 from qemu
2018-03-01 23:31:47 -05:00
Thomas Huth b2f1326437
Move target-* CPU file into a target/ folder
We've currently got 18 architectures in QEMU, and thus 18 target-xxx
folders in the root folder of the QEMU source tree. More architectures
(e.g. RISC-V, AVR) are likely to be included soon, too, so the main
folder of the QEMU sources slowly gets quite overcrowded with the
target-xxx folders.
To disburden the main folder a little bit, let's move the target-xxx
folders into a dedicated target/ folder, so that target-xxx/ simply
becomes target/xxx/ instead.

Backports commit fcf5ef2ab52c621a4617ebbef36bf43b4003f4c0 from qemu
2018-03-01 22:50:58 -05:00
Renamed from qemu/target-arm/Makefile.objs (Browse further)