Commit 3803b6b427 ("target/mips: Fold jazz behaviour into
mips_cpu_do_transaction_failed") removed update on TCGCPUOps
and commit 119065574d ("hw/core: Constify TCGCPUOps") made
it const. Remove the now irrelevant comment.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241115152053.66442-2-philmd@linaro.org>
In preparation of heterogeneous emulation where cores with
different endianness can run concurrently, we need to remove
the tswap() calls -- which use a fixed per-binary endianness.
Get the endianness of the UHI CPU accessed using
mips_env_is_bigendian() and replace the tswap() calls
by bswap() ones when necessary.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20241211230357.97036-3-philmd@linaro.org>
The TranslationBlock flags are defined in 'exec/translation-block.h'.
tcg_cflags_has/set() use them, it is more logical to declare them in
the same place. Move them there too.
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241212144430.66224-2-philmd@linaro.org>
Headers in include/sysemu/ are not only related to system
*emulation*, they are also used by virtualization. Rename
as system/ which is clearer.
Files renamed manually then mechanical change using sed tool.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Lei Yang <leiyang@redhat.com>
Message-Id: <20241203172445.28576-1-philmd@linaro.org>
Now that all of the Property arrays are counted, we can remove
the terminator object from each array. Update the assertions
in device_class_set_props to match.
With struct Property being 88 bytes, this was a rather large
form of terminator. Saves 30k from qemu-system-aarch64.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Lei Yang <leiyang@redhat.com>
Link: https://lore.kernel.org/r/20241218134251.4724-21-richard.henderson@linaro.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Set the default NaN pattern explicitly for MIPS. Note that this
is our only target which currently changes the default NaN
at runtime (which it was previously doing indirectly when it
changed the snan_bit_is_one setting).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241202131347.498124-44-peter.maydell@linaro.org
Set the Float3NaNPropRule explicitly for Arm, and remove the
ifdef from pickNaNMulAdd().
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241202131347.498124-23-peter.maydell@linaro.org
Set the FloatInfZeroNaNRule explicitly for the MIPS target,
so we can remove the ifdef from pickNaNMulAdd().
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241202131347.498124-9-peter.maydell@linaro.org
Set the 2-NaN propagation rule explicitly in the float_status words
we use.
For active_fpu.fp_status, we do this in a new fp_reset() function
which mirrors the existing msa_reset() function in doing "first call
restore to set the fp status parts that depend on CPU state, then set
the fp status parts that are constant".
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20241025141254.2141506-5-peter.maydell@linaro.org
The 'current_fpu' field is unused since commit f01be15458
("Move the active FPU registers into env again, and use more
TCG registers to access them").
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241021151253.36443-1-philmd@linaro.org>
Similarly to commit 17c2c320f3 ("Introduce ase_mt_available helper"),
introduce the disas_mt_available() one which takes a DisasContext
argument to determine whether Multi-Threading is available by
checking the MT bit of the CP0_Config3 register.
Remove the then unused ASE_MT definition.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241024195447.44600-1-philmd@linaro.org>
Determine if the MIPS-3D ASE is implemented by checking
the state of the 3D bit in the FIR CP1 control register.
Remove the then unused ASE_MIPS3D definition.
Note, this allows using MIPS-3D on the mips64dspr2 model.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241021145832.34920-1-philmd@linaro.org>
Loongson fixed-point multiplies and divisions opcodes are
specific to 64-bit cores (Loongson-2 and Loongson-3 families).
Simplify by removing the 32-bit checks.
Reported-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20241026175349.84523-10-philmd@linaro.org>
Convert the following opcodes to decodetree:
- MULT.G - multiply 32-bit signed integers
- MULTU.G - multiply 32-bit unsigned integers
- DMULT.G - multiply 64-bit signed integers
- DMULTU.G - multiply 64-bit unsigned integers
Now that all opcodes from the extension have been converted, we
can remove completely gen_loongson_integer() and its 2 calls in
decode_opc_special2_legacy() and decode_opc_special3_legacy().
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241026175349.84523-9-philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Convert the following opcodes to decodetree:
- MOD.G - mod 32-bit signed integers
- MODU.G - mod 32-bit unsigned integers
- DMOD.G - mod 64-bit signed integers
- DMODU.G - mod 64-bit unsigned integers
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20241026175349.84523-8-philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
DIV.G and DDIV.G are very similar. Provide gen_lext_DIV_G() a
'is_double' argument so it can generate DIV.G (divide 32-bit
signed integers).
With this commit we explicit the template used to generate
opcode for 32/64-bit word variants. Next commits will be less
verbose by providing both variants at once.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20241026175349.84523-6-philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Introduce decode_loongson() to decode all Loongson vendor
specific opcodes. Start converting a single opcode: DDIV.G
(divide 64-bit signed integers).
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20241026175349.84523-5-philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
There is no issue having multiple enum declarations with
the same value. As we are going to remove the OPC_MULT_G_2E
definition in few commits, restore the OPC_ADDUH_QB_DSP and
OPC_MUL_PH_DSP definitions and use them where they belong.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241026175349.84523-4-philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Since MULTU opcodes don't record the most significant bits
of the infinite result, sign-extending the sources make no
difference in the result.
Once we remove the sign extension of source registers, MULT
and MULTU are identical (as are DMULT and DMULTU).
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241026175349.84523-3-philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Extract the decode_64bit_enabled() helper which detects
whether CPUs can run 64-bit instructions.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20241026175349.84523-2-philmd@linaro.org>
Enable MSA ASE for mips32r6-generic CPU.
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Faraz Shahbazker <fshahbazker@wavecomp.com>
Signed-off-by: Aleksandar Rakic <aleksandar.rakic@htecgroup.com>
Reviewed-by: Aleksandar Rikalo <arikalo@gmail.com>
Message-ID: <AM9PR09MB485153B7CB706E188DED763484402@AM9PR09MB4851.eurprd09.prod.outlook.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Include CP0 MemoryMapID register in migration state.
Fixes: 99029be1c2 ("target/mips: Add implementation of GINVT instruction")
Signed-off-by: Yongbok Kim <yongbok.kim@mips.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Aleksandar Rakic <aleksandar.rakic@htecgroup.com>
Reviewed-by: Aleksandar Rikalo <arikalo@gmail.com>
Message-ID: <AM9PR09MB4851FB6034EDB7FA191BA47E84402@AM9PR09MB4851.eurprd09.prod.outlook.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
mips_cpu_create_with_clock() creates a vCPU. Pass it the vCPU
endianness requested by argument. Update the board call sites.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241010215015.44326-17-philmd@linaro.org>
Add the "big-endian" property and set the CP0C0_BE bit in CP0_Config0.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241010215015.44326-15-philmd@linaro.org>
Directly use tcg_constant_tl() for constant integer, this
save a call to tcg_gen_movi_tl(), often saving a temp register.
Most of the places found using the following Coccinelle spatch script:
@@
identifier tmp;
constant val;
@@
* TCGv tmp = tcg_temp_new();
...
* tcg_gen_movi_tl(tmp, val);
@@
identifier tmp;
int val;
@@
* TCGv tmp = tcg_temp_new();
...
* tcg_gen_movi_i64(tmp, val);
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241004202621.4321-2-philmd@linaro.org>
Replace tcg_gen_movi_tl() + gen_op_addr_add() by a single
gen_op_addr_addi() call.
gen_op_addr_addi() calls tcg_gen_addi_tl() which might
optimize if the immediate is zero.
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241010215015.44326-13-philmd@linaro.org>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241010215015.44326-12-philmd@linaro.org>
Introduce mo_endian() which returns the endian MemOp
corresponding to the vCPU DisasContext.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241010215015.44326-10-philmd@linaro.org>
MEMOP_IDX() is unused since commit 948f88661c ("target/mips:
Use cpu_*_data_ra for msa load/store"), remove it.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241014232235.51988-1-philmd@linaro.org>
In commit 6d0cad1259 ("target/mips: Finish conversion to
tcg_gen_qemu_{ld,st}_*") we renamed the argument of the user
definition. Rename the system part for coherency. Since the
argument is ignored, prefix with 'ignored_'.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241010215015.44326-9-philmd@linaro.org>
Extract the implicit MO_TE definition in order to replace
it by runtime variable in the next commit.
Mechanical change using:
$ for n in UW UL UQ UO SW SL SQ; do \
sed -i -e "s/MO_TE$n/MO_TE | MO_$n/" \
$(git grep -l MO_TE$n target/mips); \
done
manually remove superfluous parenthesis in nanoMIPS gen_save().
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241010215015.44326-8-philmd@linaro.org>
Instead of swapping the reversed target endianness
using MO_BSWAP, directly return the correct endianness.
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241010215015.44326-7-philmd@linaro.org>
Functions are easier to rework than macros. Besides,
there is no gain here in inlining these.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241010215015.44326-6-philmd@linaro.org>
Replace compile-time MO_TE evaluation by runtime mo_endian_env()
one, which expand target endianness from vCPU env.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241010215015.44326-5-philmd@linaro.org>
Introduce mo_endian_env() which returns the endian
MemOp corresponding to the vCPU env.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241010215015.44326-4-philmd@linaro.org>
Methods using the 'cpu_' prefix usually take a (Arch)CPUState
argument. Since this method takes a DisasContext argument,
rename it as disas_is_bigendian().
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241010215015.44326-3-philmd@linaro.org>
In order to re-use cpu_is_bigendian(), declare it on "internal.h"
after renaming it as mips_env_is_bigendian().
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241010215015.44326-2-philmd@linaro.org>
It is used in a couple of places only, both within the same target.
Those can use the cflags just as well, so remove the separate field.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20241010083641.1785069-1-pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This is necessary to provide discernible error messages to the caller.
Signed-off-by: Julia Suvorova <jusual@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/20240927104743.218468-2-jusual@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The 'LGPL-2.0+' license identifier has been deprecated since license
list version 2.0rc2 [1] and replaced by the 'LGPL-2.0-or-later' [2]
tag.
[1] https://spdx.org/licenses/LGPL-2.0+.html
[2] https://spdx.org/licenses/LGPL-2.0-or-later.html
Mechanical patch running:
$ sed -i -e s/LGPL-2.0+/LGPL-2.0-or-later/ \
$(git grep -l 'SPDX-License-Identifier: LGPL-2.0+$')
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
PTE is not CODE so load it as normal DATA access.
Fixes: 074cfcb4da ("Implement hardware page table walker for MIPS32")
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240814090452.2591-4-philmd@linaro.org>
When refactoring page_table_walk_refill() in commit 4e999bf419
we missed the indirect call to cpu_mmu_index() in get_pte():
page_table_walk_refill()
-> get_pte()
-> cpu_ld[lq]_code()
-> cpu_mmu_index()
Since we don't mask anymore the modes in hflags, cpu_mmu_index()
can return UM or SM, while we only expect KM or ERL.
Fix by propagating ptw_mmu_idx to get_pte(), and use the
cpu_ld/st_code_mmu() API with the correct MemOpIdx.
Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reported-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2470
Fixes: 4e999bf419 ("target/mips: Pass ptw_mmu_idx down from mips_cpu_tlb_fill")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240814090452.2591-3-philmd@linaro.org>
In order to simplify the next commit, pass the PTE size as MemOp.
Rename:
native_shift -> native_op
directory_shift -> directory_mop
leaf_shift -> leaf_mop
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240814090452.2591-2-philmd@linaro.org>
