LLD/SCD opcodes have been removed from the Release 6.
Add a single decodetree entry for the opcodes, triggering
Reserved Instruction if ever used.
Remove unreachable check_insn_opc_removed() calls.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201208203704.243704-13-f4bug@amsat.org>
LDL/LDR/SDL/SDR opcodes have been removed from the Release 6.
Add a single decodetree entry for the opcodes, triggering
Reserved Instruction if ever used.
Remove unreachable check_insn_opc_removed() calls.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201208203704.243704-12-f4bug@amsat.org>
LWLE/LWRE/SWLE/SWRE (EVA) opcodes have been removed from
the Release 6. Add a single decodetree entry for the opcodes,
triggering Reserved Instruction if ever used.
Remove unreachable check_insn_opc_removed() calls.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201208203704.243704-11-f4bug@amsat.org>
LWL/LWR/SWL/SWR opcodes have been removed from the Release 6.
Add a single decodetree entry for the opcodes, triggering
Reserved Instruction if ever used.
Remove unreachable check_insn_opc_removed() calls.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201208203704.243704-10-f4bug@amsat.org>
CACHE/PREF opcodes have been removed from the Release 6.
Add a single decodetree entry for the opcodes, triggering
Reserved Instruction if ever used.
Remove unreachable check_insn_opc_removed() calls.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201208203704.243704-9-f4bug@amsat.org>
COP1x opcode has been removed from the Release 6.
Add a single decodetree entry for it, triggering
Reserved Instruction if ever used.
Remove unreachable check_insn_opc_removed() call.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201208203704.243704-8-f4bug@amsat.org>
Special2 opcode have been removed from the Release 6.
Add a single decodetree entry for all the opcode class,
triggering Reserved Instruction if ever used.
Remove unreachable check_insn_opc_removed() call.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201208203704.243704-7-f4bug@amsat.org>
Since we switched to decodetree-generated processing,
we can remove this now unreachable code.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201208203704.243704-6-f4bug@amsat.org>
LSA and LDSA opcodes are also available with MIPS release 6.
Introduce the decodetree config files and call the decode()
helpers in the main decode_opc() loop.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201215225757.764263-24-f4bug@amsat.org>
Extract gen_lsa() from translate.c and explode it as
gen_LSA() and gen_DLSA().
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201215225757.764263-22-f4bug@amsat.org>
Now that we can decode the MSA ASE with decode_ase_msa(),
use it and remove the previous code, now unreachable.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201215225757.764263-21-f4bug@amsat.org>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Extract 2200 lines from the huge translate.c to a new file,
'msa_translate.c'. As there are too many inter-dependencies
we don't compile it as another object yet, but keep including
it in the big translate.o. We gain in code maintainability.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201120210844.2625602-5-f4bug@amsat.org>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Make gen_msa() and gen_msa_branch() public declarations
so we can keep calling them once extracted from the big
translate.c in the next commit.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201215225757.764263-18-f4bug@amsat.org>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
In preparation of using the decodetree script, explode
gen_msa_branch() as following:
- OPC_BZ_V -> BxZ_V(EQ)
- OPC_BNZ_V -> BxZ_V(NE)
- OPC_BZ_[BHWD] -> BxZ(false)
- OPC_BNZ_[BHWD] -> BxZ(true)
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <20201208003702.4088927-10-f4bug@amsat.org>
The gen_msa*() methods don't use the "CPUMIPSState *env"
argument. Remove it to simplify.
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <20201208003702.4088927-9-f4bug@amsat.org>
The msa_wr_d[] registers are only initialized/used by MSA.
They are declared static. We want to move them to the new
'msa_translate.c' unit in few commits, without having to
declare them global (with extern).
Extract first the logic initialization of the MSA registers
from the generic initialization. We will later move this
function along with the MSA registers to the new C unit.
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <20201208003702.4088927-8-f4bug@amsat.org>
Commits 863f264d10f ("add msa_reset(), global msa register") and
cb269f273fd ("fix multiple TCG registers covering same data")
removed the FPU scalar registers and replaced them by aliases to
the MSA vector registers.
It is not very clear to have FPU registers displayed with MSA
register names, even if MSA ASE is not present.
Instead of aliasing FPU registers to the MSA ones (even when MSA
is absent), we now alias the MSA ones to the FPU ones (only when
MSA is present).
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <20201208003702.4088927-7-f4bug@amsat.org>
Only decode MSA opcodes if MSA is present (implemented).
Now than check_msa_access() will only be called if MSA is
present, the only way to have MIPS_HFLAG_MSA unset is if
MSA is disabled (bit CP0C5_MSAEn cleared, see previous
commit). Therefore we can remove the 'reserved instruction'
exception.
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <20201208003702.4088927-5-f4bug@amsat.org>
Instead of accessing CP0_Config3 directly and checking
the 'MSA Present' bit, introduce an explicit helper,
making the code easier to read.
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <20201208003702.4088927-2-f4bug@amsat.org>
To allow compiling 64-bit specific translation code more
generically (and removing #ifdef'ry), allow compiling
check_mips_64() on 32-bit targets.
If ever called on 32-bit, we obviously emit a reserved
instruction exception.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <20201215225757.764263-3-f4bug@amsat.org>
As we will slowly move to decodetree generated decoders,
extract the legacy decoding from decode_opc(), so new
decoders are added in decode_opc() while old code is
removed from decode_opc_legacy().
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201215225757.764263-2-f4bug@amsat.org>
Extract FPU specific definitions that can be used by
ISA / ASE / extensions to translate.h header.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201214183739.500368-16-f4bug@amsat.org>
Some FPU / Coprocessor translation functions / registers can be
used by ISA / ASE / extensions out of the big translate.c file.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201214183739.500368-15-f4bug@amsat.org>
gen_reserved_instruction() is easier to read than
generate_exception_end(ctx, EXCP_RI), replace it.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201214183739.500368-12-f4bug@amsat.org>
generate_exception_err(err=0) is simply generate_exception_end().
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201214183739.500368-11-f4bug@amsat.org>
Some CPU translation functions / registers / macros and
definitions can be used by ISA / ASE / extensions out of
the big translate.c file. Declare them in "translate.h".
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201207235539.4070364-3-f4bug@amsat.org>
Extract DisasContext to a new 'translate.h' header so
different translation files (ISA, ASE, extensions)
can use it.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201207235539.4070364-2-f4bug@amsat.org>
Extract FPU specific helpers from "internal.h" to "fpu_helper.h".
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20201120210844.2625602-2-f4bug@amsat.org>
The MIPS ISA release 6 is common to 32/64-bit CPUs.
To avoid holes in the insn_flags type, update the
definition with the next available bit.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210104221154.3127610-16-f4bug@amsat.org>
The MIPS ISA release 5 is common to 32/64-bit CPUs.
To avoid holes in the insn_flags type, update the
definition with the next available bit.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210104221154.3127610-15-f4bug@amsat.org>
The MIPS ISA release 2 is common to 32/64-bit CPUs.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210104221154.3127610-13-f4bug@amsat.org>
The MIPS ISA release '1' is common to 32/64-bit CPUs.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210104221154.3127610-12-f4bug@amsat.org>
Use the single ISA_MIPS32R6 definition to check if the Release 6
ISA is supported, whether the CPU support 32/64-bit.
For now we keep '32' in the definition name, we will rename it
as ISA_MIPS_R6 in few commits.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210104221154.3127610-11-f4bug@amsat.org>
Use the single ISA_MIPS32R2 definition to check if the Release 2
ISA is supported, whether the CPU support 32/64-bit.
For now we keep '32' in the definition name, we will rename it
as ISA_MIPS_R2 in few commits.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210104221154.3127610-8-f4bug@amsat.org>
Use the single ISA_MIPS32 definition to check if the Release 1
ISA is supported, whether the CPU support 32/64-bit.
For now we keep '32' in the definition name, we will rename it
as ISA_MIPS_R1 in few commits.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210104221154.3127610-7-f4bug@amsat.org>
Nothing TCG specific there, move to common cpu code.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201206233949.3783184-16-f4bug@amsat.org>
Move cpu_supports*() and cpu_set_exception_base() from
translate.c to cpu.c.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201206233949.3783184-9-f4bug@amsat.org>
Instead of accessing CP0_Config3 directly and checking
the 'Multi-Threading Present' bit, introduce an helper
to simplify code review.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201204222622.2743175-3-f4bug@amsat.org>
mvp_init() doesn't require any CPU definition (beside the
information accessible via CPUMIPSState). Remove the unused
argument.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201204222622.2743175-2-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201206233949.3783184-3-f4bug@amsat.org>
Address translation is an architectural thing (not hardware
related). Move the helpers from hw/ to target/.
As physical address and KVM are specific to system mode
emulation, restrict this file to softmmu, so it doesn't
get compiled for user-mode emulation.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201206233949.3783184-2-f4bug@amsat.org>
As cpu_supports_isa() / cpu_supports_cps_smp() take a 'cpu_type'
name argument, rename them cpu_type_supports_FEAT().
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201207215257.4004222-2-f4bug@amsat.org>
MIPSR6 (not only MIPS32R6) processors support unaligned access in
hardware, so set MO_UNALN in their default_tcg_memop_mask. Btw, new
Loongson-3 (such as Loongson-3A4000) also support unaligned access,
since both old and new Loongson-3 use the same binaries, we can simply
set MO_UNALN for all Loongson-3 processors.
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1604053541-27822-3-git-send-email-chenhc@lemote.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
There is no "version 2" of the "Lesser" General Public License.
It is either "GPL version 2.0" or "Lesser GPL version 2.1".
This patch replaces all occurrences of "Lesser GPL version 2" with
"Lesser GPL version 2.1" in comment section.
Signed-off-by: Chetan Pant <chetan4windows@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201016143509.26692-1-chetan4windows@gmail.com>
[PMD: Split hw/ vs target/]
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
LDC2/SDC2 opcodes have been rewritten as "load & store with offset"
group of instructions by loongson-ext ASE.
This patch add implementation of these instructions:
gslbx: load 1 bytes to GPR
gslhx: load 2 bytes to GPR
gslwx: load 4 bytes to GPR
gsldx: load 8 bytes to GPR
gslwxc1: load 4 bytes to FPR
gsldxc1: load 8 bytes to FPR
gssbx: store 1 bytes from GPR
gsshx: store 2 bytes from GPR
gsswx: store 4 bytes from GPR
gssdx: store 8 bytes from GPR
gsswxc1: store 4 bytes from FPR
gssdxc1: store 8 bytes from FPR
Details of Loongson-EXT is here:
https://github.com/FlyGoat/loongson-insn/blob/master/loongson-ext.md
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1602831120-3377-5-git-send-email-chenhc@lemote.com>
LWC2 & SWC2 have been rewritten by Loongson EXT vendor ASE
as "load/store quad word" and "shifted load/store" groups of
instructions.
This patch add implementation of these instructions:
gslwlc1: similar to lwl but RT is FPR instead of GPR
gslwrc1: similar to lwr but RT is FPR instead of GPR
gsldlc1: similar to ldl but RT is FPR instead of GPR
gsldrc1: similar to ldr but RT is FPR instead of GPR
gsswlc1: similar to swl but RT is FPR instead of GPR
gsswrc1: similar to swr but RT is FPR instead of GPR
gssdlc1: similar to sdl but RT is FPR instead of GPR
gssdrc1: similar to sdr but RT is FPR instead of GPR
Details of Loongson-EXT is here:
https://github.com/FlyGoat/loongson-insn/blob/master/loongson-ext.md
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Message-Id: <1602831120-3377-4-git-send-email-chenhc@lemote.com>
[PMD: Reuse t1 on MIPS32, reintroduce t2/fp0]
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
LWC2 & SWC2 have been rewritten by Loongson EXT vendor ASE
as "load/store quad word" and "shifted load/store" groups of
instructions.
This patch add implementation of these instructions:
gslq: load 16 bytes to GPR
gssq: store 16 bytes from GPR
gslqc1: load 16 bytes to FPR
gssqc1: store 16 bytes from FPR
Details of Loongson-EXT is here:
https://github.com/FlyGoat/loongson-insn/blob/master/loongson-ext.md
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Message-Id: <1602831120-3377-3-git-send-email-chenhc@lemote.com>
[PMD: Restrict t1 variable to TARGET_MIPS64, remove unused t2/fp0]
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
There are many spelling errors in the comments in target/mips/.
Use spellcheck to check the spelling errors.
Signed-off-by: zhaolichang <zhaolichang@huawei.com>
Reviewed-by: David Edmondson <david.edmondson@oracle.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20201009064449.2336-7-zhaolichang@huawei.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
One of the Travis builds was complaining about:
qemu/include/tcg/tcg.h:437:12: error: ‘cond’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
return (TCGCond)(c ^ 1);
../target/mips/translate.c:20031:13: note: ‘cond’ was declared here
TCGCond cond;
Rather than figure out exactly which one was causing the complaint I
just defaulted to TCG_COND_ALWAYS and allowed that state to double up
for the now defunct bcond_compute variable.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200909112742.25730-5-alex.bennee@linaro.org>
With Makefiles that have automatically generated dependencies, you
generated includes are set as dependencies of the Makefile, so that they
are built before everything else and they are available when first
building the .c files.
Alternatively you can use a fine-grained dependency, e.g.
target/arm/translate.o: target/arm/decode-neon-shared.inc.c
With Meson you have only one choice and it is a third option, namely
"build at the beginning of the corresponding target"; the way you
express it is to list the includes in the sources of that target.
The problem is that Meson decides if something is a source vs. a
generated include by looking at the extension: '.c', '.cc', '.m', '.C'
are sources, while everything else is considered an include---including
'.inc.c'.
Use '.c.inc' to avoid this, as it is consistent with our other convention
of using '.rst.inc' for included reStructuredText files. The editorconfig
file is adjusted.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
