Merge remote-tracking branch 'remotes/philmd/tags/mips-20210502' into staging

MIPS patches queue

- Fix CACHEE opcode
- Add missing CP0 checks to nanoMIPS RDPGPR / WRPGPR opcodes
- Remove isa_get_ir

Merge remote-tracking branch 'remotes/philmd/tags/mips-20210502' into staging

MIPS patches queue

- Fix CACHEE opcode
- Add missing CP0 checks to nanoMIPS RDPGPR / WRPGPR opcodes
- Remove isa_get_irq() call in PIIX4 south bridge
- Add various missing fields to the MIPS CPU migration vmstate
- Lot of code moved around to allow TCG or KVM only builds
- Restrict non-virtualized machines to TCG
- Add KVM mips64el cross-build jobs to gitlab-ci

# gpg: Signature made Sun 02 May 2021 15:56:51 BST
# gpg: using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD 6BB2 E3E3 2C2C DEAD C0DE

* remotes/philmd/tags/mips-20210502: (36 commits)
gitlab-ci: Add KVM mips64el cross-build jobs
hw/mips: Restrict non-virtualized machines to TCG
target/mips: Move TCG source files under tcg/ sub directory
target/mips: Move CP0 helpers to sysemu/cp0.c
target/mips: Move exception management code to exception.c
target/mips: Move TLB management helpers to tcg/sysemu/tlb_helper.c
target/mips: Move helper_cache() to tcg/sysemu/special_helper.c
target/mips: Move Special opcodes to tcg/sysemu/special_helper.c
target/mips: Restrict CPUMIPSTLBContext::map_address() handlers scope
target/mips: Move tlb_helper.c to tcg/sysemu/
target/mips: Restrict mmu_init() to TCG
target/mips: Move sysemu TCG-specific code to tcg/sysemu/ subfolder
target/mips: Restrict cpu_mips_get_random() / update_pagemask() to TCG
target/mips: Move physical addressing code to sysemu/physaddr.c
target/mips: Move sysemu specific files under sysemu/ subfolder
target/mips: Move cpu_signal_handler definition around
target/mips: Add simple user-mode mips_cpu_tlb_fill()
target/mips: Add simple user-mode mips_cpu_do_interrupt()
target/mips: Introduce tcg-internal.h for TCG specific declarations
meson: Introduce meson_user_arch source set for arch-specific user-mode
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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target/mips: Optimize CPU/FPU regnames[] arrays

Since all entries are no more than 4 bytes (including nul
terminator), can save space and pie runtime relocations by
declaring regnames[] as array of

target/mips: Optimize CPU/FPU regnames[] arrays

Since all entries are no more than 4 bytes (including nul
terminator), can save space and pie runtime relocations by
declaring regnames[] as array of 4 const char.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210428170410.479308-6-f4bug@amsat.org>

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target/mips: Make CPU/FPU regnames[] arrays global

The CPU/FPU regnames[] arrays is used in mips_tcg_init() and
mips_cpu_dump_state(), which while being in translate.c is
not specific to TCG.

To be

target/mips: Make CPU/FPU regnames[] arrays global

The CPU/FPU regnames[] arrays is used in mips_tcg_init() and
mips_cpu_dump_state(), which while being in translate.c is
not specific to TCG.

To be able to move mips_cpu_dump_state() to cpu.c, which is
compiled for all accelerator, we need to make the regnames[]
arrays global to target/mips/ by declaring them in "internal.h".

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210428170410.479308-5-f4bug@amsat.org>

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target/mips: Move IEEE rounding mode array to new source file

restore_msa_fp_status() is declared inlined in fpu_helper.h,
and uses the ieee_rm[] array. Therefore any code calling
restore_msa_fp_sta

target/mips: Move IEEE rounding mode array to new source file

restore_msa_fp_status() is declared inlined in fpu_helper.h,
and uses the ieee_rm[] array. Therefore any code calling
restore_msa_fp_status() must have access to this ieee_rm[] array.

kvm_mips_get_fpu_registers(), which is in target/mips/kvm.c,
calls restore_msa_fp_status.

Except this tiny array, the rest of fpu_helper.c is only useful
for the TCG accelerator.

To be able to restrict fpu_helper.c to TCG, we need to move the
ieee_rm[] array to a new source file.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210428170410.479308-3-f4bug@amsat.org>

show more ...