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2022-03-09Merge remote-tracking branch 'remotes/philmd/tags/mips-20220308' into stagingPeter Maydell
MIPS patches queue - Fix CP0 cycle counter timing - Fix VMState of gt64120 IRQs - Long due PIIX4 QOM cleanups - ISA IRQ QOM'ification / cleanups # gpg: Signature made Tue 08 Mar 2022 18:39:42 GMT # gpg: using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE # gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [unknown] # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: FAAB E75E 1291 7221 DCFD 6BB2 E3E3 2C2C DEAD C0DE * remotes/philmd/tags/mips-20220308: tests/avocado/linux_ssh_mips_malta.py: add missing accel (tcg) tag hw/isa: Inline and remove one-line isa_init_irq() hw/isa: Drop unused attributes from ISADevice hw/isa/isa-bus: Remove isabus_dev_print() hw/input/pckbd: QOM'ify IRQ numbers hw/rtc/m48t59-isa: QOM'ify IRQ number hw/rtc/mc146818rtc: QOM'ify IRQ number hw/mips/gt64xxx_pci: Resolve gt64120_register() hw/isa/piix4: Replace some magic IRQ constants hw/isa/piix4: Resolve global instance variable hw/isa/piix4: Pass PIIX4State as opaque parameter for piix4_set_irq() hw/isa/piix4: Resolve redundant i8259[] attribute malta: Move PCI interrupt handling from gt64xxx_pci to piix4 hw/mips/gt64xxx_pci: Fix PCI IRQ levels to be preserved during migration target/mips: Remove duplicated MIPSCPU::cp0_count_rate target/mips: Fix cycle counter timing calculations Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-03-07target/mips: Remove duplicated MIPSCPU::cp0_count_ratePhilippe Mathieu-Daudé
Since the previous commit 9ea89876f9d ("target/mips: Fix cycle counter timing calculations"), MIPSCPU::cp0_count_rate is not used anymore. We don't need it since it is already expressed as mips_def_t::CCRes. Remove the duplicate and clean. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <>20211213102340.1847248-1-f4bug@amsat.org>
2022-03-06target: Use forward declared type instead of structure typePhilippe Mathieu-Daudé
The CPU / CPU state are forward declared. $ git grep -E 'struct [A-Za-z]+CPU\ \*' target/arm/hvf_arm.h:16:void hvf_arm_set_cpu_features_from_host(struct ARMCPU *cpu); target/openrisc/cpu.h:234: int (*cpu_openrisc_map_address_code)(struct OpenRISCCPU *cpu, target/openrisc/cpu.h:238: int (*cpu_openrisc_map_address_data)(struct OpenRISCCPU *cpu, $ git grep -E 'struct CPU[A-Za-z0-9]+State\ \*' target/mips/internal.h:137: int (*map_address)(struct CPUMIPSState *env, hwaddr *physical, int *prot, target/mips/internal.h:139: void (*helper_tlbwi)(struct CPUMIPSState *env); target/mips/internal.h:140: void (*helper_tlbwr)(struct CPUMIPSState *env); target/mips/internal.h:141: void (*helper_tlbp)(struct CPUMIPSState *env); target/mips/internal.h:142: void (*helper_tlbr)(struct CPUMIPSState *env); target/mips/internal.h:143: void (*helper_tlbinv)(struct CPUMIPSState *env); target/mips/internal.h:144: void (*helper_tlbinvf)(struct CPUMIPSState *env); target/xtensa/cpu.h:347: struct CPUXtensaState *env; ... Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20220214183144.27402-12-f4bug@amsat.org>
2022-03-06target: Include missing 'cpu.h'Philippe Mathieu-Daudé
These target-specific files use the target-specific CPU state but lack to include "cpu.h"; i.e.: ../target/riscv/pmp.h:61:23: error: unknown type name 'CPURISCVState' void pmpcfg_csr_write(CPURISCVState *env, uint32_t reg_index, ^ ../target/nios2/mmu.h:43:18: error: unknown type name 'CPUNios2State' void mmu_flip_um(CPUNios2State *env, unsigned int um); ^ ../target/microblaze/mmu.h:88:19: error: unknown type name 'CPUMBState'; did you mean 'CPUState'? uint32_t mmu_read(CPUMBState *env, bool ea, uint32_t rn); ^~~~~~~~~~ CPUState Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20220214183144.27402-10-f4bug@amsat.org>
2021-09-21include/exec: Move cpu_signal_handler declarationRichard Henderson
There is nothing target specific about this. The implementation is host specific, but the declaration is 100% common. Reviewed-By: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-06-24target/mips: Optimize regnames[] arraysPhilippe Mathieu-Daudé
Since all entries are no more than 3/4/6 bytes (including nul terminator), can save space and pie runtime relocations by declaring regnames[] as array of 3/4/6 const char. Inspired-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210617174323.2900831-10-f4bug@amsat.org>
2021-05-02target/mips: Move TCG source files under tcg/ sub directoryPhilippe Mathieu-Daudé
To ease maintenance, move all TCG specific files under the tcg/ sub-directory. Adapt the Meson machinery. The following prototypes: - mips_tcg_init() - mips_cpu_do_unaligned_access() - mips_cpu_do_transaction_failed() can now be restricted to the "tcg-internal.h" header. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-29-f4bug@amsat.org>
2021-05-02target/mips: Move CP0 helpers to sysemu/cp0.cPhilippe Mathieu-Daudé
Opcodes accessing Coprocessor 0 are privileged. Move the CP0 helpers to sysemu/ and simplify the #ifdef'ry. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-28-f4bug@amsat.org>
2021-05-02target/mips: Move exception management code to exception.cPhilippe Mathieu-Daudé
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-27-f4bug@amsat.org>
2021-05-02target/mips: Move TLB management helpers to tcg/sysemu/tlb_helper.cPhilippe Mathieu-Daudé
Move TLB management helpers to tcg/sysemu/tlb_helper.c. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-26-f4bug@amsat.org>
2021-05-02target/mips: Restrict CPUMIPSTLBContext::map_address() handlers scopePhilippe Mathieu-Daudé
The 3 map_address() handlers are local to tlb_helper.c, no need to have their prototype declared publically. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-23-f4bug@amsat.org>
2021-05-02target/mips: Move tlb_helper.c to tcg/sysemu/Philippe Mathieu-Daudé
Move tlb_helper.c to the tcg/sysemu/ subdir, along with the following 3 declarations to tcg-internal.h: - cpu_mips_tlb_flush() - cpu_mips_translate_address() - r4k_invalidate_tlb() Simplify tlb_helper.c #ifdef'ry because files in tcg/sysemu/ are only build when sysemu mode is configured. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-22-f4bug@amsat.org>
2021-05-02target/mips: Restrict mmu_init() to TCGPhilippe Mathieu-Daudé
mmu_init() is only required by TCG accelerator. Restrict its declaration and call to TCG. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-21-f4bug@amsat.org>
2021-05-02target/mips: Restrict cpu_mips_get_random() / update_pagemask() to TCGPhilippe Mathieu-Daudé
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-19-f4bug@amsat.org>
2021-05-02target/mips: Move physical addressing code to sysemu/physaddr.cPhilippe Mathieu-Daudé
Declare get_physical_address() with local scope and move it along with mips_cpu_get_phys_page_debug() to sysemu/physaddr.c new file. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-18-f4bug@amsat.org>
2021-05-02target/mips: Move cpu_signal_handler definition aroundPhilippe Mathieu-Daudé
We have 2 blocks guarded with #ifdef for sysemu, which are simply separated by the cpu_signal_handler definition. To simplify the following commits which involve various changes in internal.h, first join the sysemu-guarded blocks. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-16-f4bug@amsat.org>
2021-05-02target/mips: Introduce tcg-internal.h for TCG specific declarationsPhilippe Mathieu-Daudé
We will gradually move TCG-specific declarations to a new local header: "tcg-internal.h". To keep review simple, first add this header with 2 TCG prototypes, which we are going to move in the next 2 commits. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-13-f4bug@amsat.org>
2021-05-02target/mips: Merge do_translate_address into cpu_mips_translate_addressPhilippe Mathieu-Daudé
Currently cpu_mips_translate_address() calls raise_mmu_exception(), and do_translate_address() calls cpu_loop_exit_restore(). This API split is dangerous, we could call cpu_mips_translate_address without returning to the main loop. As there is only one caller, it is trivial (and safer) to merge do_translate_address() back to cpu_mips_translate_address(). Reported-by: Richard Henderson <richard.henderson@linaro.org> 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: <20210428170410.479308-10-f4bug@amsat.org>
2021-05-02target/mips: Declare mips_env_set_pc() inlined in "internal.h"Philippe Mathieu-Daudé
Rename set_pc() as mips_env_set_pc(), declare it inlined and use it in cpu.c and op_helper.c. Reported-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210428170410.479308-9-f4bug@amsat.org>
2021-05-02target/mips: Restrict mips_cpu_dump_state() to cpu.cPhilippe Mathieu-Daudé
As mips_cpu_dump_state() is only used once to initialize the CPUClass::dump_state handler, we can move it to cpu.c to keep it symbol local. Beside, this handler is used by all accelerators, while the translate.c file targets TCG. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-7-f4bug@amsat.org>
2021-05-02target/mips: Optimize CPU/FPU regnames[] arraysPhilippe Mathieu-Daudé
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>
2021-05-02target/mips: Make CPU/FPU regnames[] arrays globalPhilippe Mathieu-Daudé
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>
2021-02-21target/mips: Let CPUMIPSTLBContext::map_address() take MMUAccessTypePhilippe Mathieu-Daudé
get_seg_physical_address() calls CPUMIPSTLBContext::map_address() handlers passing a MMUAccessType type. Update the prototype handlers to take a MMUAccessType argument, as it is stricter than an integer. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20210128144125.3696119-14-f4bug@amsat.org>
2021-02-21target/mips: Let cpu_mips_translate_address() take MMUAccessType argPhilippe Mathieu-Daudé
The single caller, do_translate_address(), passes MMUAccessType to cpu_mips_translate_address(). Let the prototype use it as argument, as it is stricter than an integer. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20210128144125.3696119-10-f4bug@amsat.org>
2021-02-21target/mips: Remove access_type argument from map_address() handlerPhilippe Mathieu-Daudé
TLB map_address() handlers don't use the 'access_type' argument, remove it to simplify. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20210128144125.3696119-2-f4bug@amsat.org>
2021-01-14target/mips: Move msa_reset() to msa_helper.cPhilippe Mathieu-Daudé
translate_init.c.inc mostly contains CPU definitions. msa_reset() doesn't belong here, move it with the MSA helpers. One comment style is updated to avoid checkpatch.pl warning. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201215225757.764263-15-f4bug@amsat.org> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
2021-01-14target/mips: Use CP0_Config3 to set MIPS_HFLAG_MSAPhilippe Mathieu-Daudé
MSA presence is expressed by the MSAP bit of CP0_Config3. We don't need to check anything else. 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: <20201208003702.4088927-4-f4bug@amsat.org>
2021-01-14target/mips: Move mmu_init() functions to tlb_helper.cPhilippe Mathieu-Daudé
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201206233949.3783184-15-f4bug@amsat.org>
2021-01-14target/mips: Move common helpers from helper.c to cpu.cPhilippe Mathieu-Daudé
The rest of helper.c is TLB related. Extract the non TLB specific functions to cpu.c, so we can rename helper.c as tlb_helper.c in the next commit. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201214183739.500368-6-f4bug@amsat.org>
2021-01-14target/mips: Extract FPU helpers to 'fpu_helper.h'Philippe Mathieu-Daudé
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>
2021-01-14target/mips/mips-defs: Rename ISA_MIPS32R6 as ISA_MIPS_R6Philippe Mathieu-Daudé
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>
2021-01-14target/mips/mips-defs: Rename ISA_MIPS32R2 as ISA_MIPS_R2Philippe Mathieu-Daudé
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>
2021-01-14target/mips/mips-defs: Rename ISA_MIPS32 as ISA_MIPS_R1Philippe Mathieu-Daudé
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>
2021-01-14target/mips/mips-defs: Use ISA_MIPS32R6 definition to check Release 6Philippe Mathieu-Daudé
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>
2020-12-13target/mips: Use FloatRoundMode enum for FCR31 modes conversionPhilippe Mathieu-Daudé
Use the FloatRoundMode enum type introduced in commit 3dede407cc6 ("softfloat: Name rounding mode enum") instead of 'unsigned int'. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201123204448.3260804-2-f4bug@amsat.org>
2020-12-13target/mips: Move cpu definitions, reset() and realize() to cpu.cPhilippe Mathieu-Daudé
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>
2020-12-13target/mips: Explicit Release 6 MMU typesPhilippe Mathieu-Daudé
As of Release 6, MMU type 4 is assigned to "Dual Variable-Page-Size and Fixed-Page-Size TLBs" and type 2 to "Block Address Translation. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201201132817.2863301-4-f4bug@amsat.org>
2020-12-13target/mips: Include "exec/memattrs.h" in 'internal.h'Philippe Mathieu-Daudé
mips_cpu_do_transaction_failed() requires MemTxAttrs and MemTxResult declarations. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201206233949.3783184-8-f4bug@amsat.org>
2020-10-17target/mips: Move cpu_mips_get_random() with CP0 helpersPhilippe Mathieu-Daudé
The get_random() helper uses the CP0_Wired register, which is unrelated to the CP0_Count register used as timer. Commit e16fe40c872 ("Move the MIPS CPU timer in a separate file") incorrectly moved this get_random() helper with timer specific code. Move it back to generic CP0 helpers. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com> Reviewed-by: Luc Michel <luc@lmichel.fr> Message-Id: <20201012095804.3335117-6-f4bug@amsat.org>
2020-10-17target/mips: Fix some comment spelling errorszhaolichang
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>
2020-06-09target/mips: Add Loongson-3 CPU definitionHuacai Chen
Loongson-3 CPU family include Loongson-3A R1/R2/R3/R4 and Loongson-3B R1/R2. Loongson-3A R1 is the oldest and its ISA is the smallest, while Loongson-3A R4 is the newest and its ISA is almost the superset of all others. To reduce complexity, we just define two CPU types: 1) "Loongson-3A1000" CPU which is corresponding to Loongson-3A R1. It is suitable for TCG because Loongson-3A R1 has fewest ASE. 2) "Loongson-3A4000" CPU which is corresponding to Loongson-3A R4. It is suitable for KVM because Loongson-3A R4 has the VZ ASE. Loongson-3A has CONFIG6 and CONFIG7, so add their bit-fields as well. [AM: Rearranged insn_flags, added comments, renamed lmi_helper.c, improved commit message, fixed checkpatch warnings] Signed-off-by: Huacai Chen <chenhc@lemote.com> Co-developed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com> Signed-off-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com> Message-Id: <1591065557-9174-3-git-send-email-chenhc@lemote.com>
2020-06-09target/mips: fpu: Refactor conversion from ieee to mips exception flagsAleksandar Markovic
The original coversion function is used for regular and MSA floating point instructions handling. Since there are some nuanced differences between regular and MSA floating point exception handling, provide two instances of the conversion function, rather than just a single common one. Inline both instances of this function instances for the sake of performance. Improve variable naming in surrounding code for clarity. Reviewed-by: Aleksandar Rikalo <aleksandar.rikalo@syrmia.com> Signed-off-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com> Message-Id: <20200518200920.17344-17-aleksandar.qemu.devel@gmail.com>
2020-03-17gdbstub: extend GByteArray to read register helpersAlex Bennée
Instead of passing a pointer to memory now just extend the GByteArray to all the read register helpers. They can then safely append their data through the normal way. We don't bother with this abstraction for write registers as we have already ensured the buffer being copied from is the correct size. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Damien Hedde <damien.hedde@greensocs.com> Message-Id: <20200316172155.971-15-alex.bennee@linaro.org>
2020-01-29target/mips: Add implementation of GINVT instructionYongbok Kim
Implement emulation of GINVT instruction. As QEMU doesn't support caches and virtualization, this implementation covers only one instruction (GINVT - Global Invalidate TLB) among all TLB-related MIPS instructions. Reviewed-by: Aleksandar Rikalo <aleksandar.rikalo@rt-rk.com> Signed-off-by: Yongbok Kim <yongbok.kim@mips.com> Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Message-Id: <1579883929-1517-5-git-send-email-aleksandar.markovic@rt-rk.com>
2019-10-01target/mips: Clean up internal.hAleksandar Markovic
Mostly fix errors and warnings reported by 'checkpatch.pl -f'. Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <1569331602-2586-3-git-send-email-aleksandar.markovic@rt-rk.com>
2019-09-12target/mips: Switch to do_transaction_failed() hookPeter Maydell
Switch the MIPS target from the old unassigned_access hook to the new do_transaction_failed hook. Unlike the old hook, do_transaction_failed is only ever called from the TCG memory access paths, so there is no need for the "ignore this if we're using KVM" hack that we were previously using to work around the way unassigned_access was called for all kinds of memory accesses to unassigned physical addresses. The MIPS target does not ever do direct memory reads by physical address (via either ldl_phys etc or address_space_ldl etc), so the only memory accesses this affects are the 'normal' guest loads and stores, which will be handled by the new hook; their behaviour is unchanged. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Hervé Poussineau <hpoussin@reactos.org> Message-Id: <20190802160458.25681-3-peter.maydell@linaro.org>
2019-08-19target/mips: rationalise softfloat includesAlex Bennée
We should avoid including the whole of softfloat headers in cpu.h and explicitly include it only where we will be calling softfloat functions. We can use the -types.h in cpu.h for the few bits that are global. We also move the restore_snan_bit_mode into internal.h and include -helpers.h there. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2019-08-16migration: Move the VMStateDescription typedef to typedefs.hMarkus Armbruster
We declare incomplete struct VMStateDescription in a couple of places so we don't have to include migration/vmstate.h for the typedef. That's fine with me. However, the next commit will drop migration/vmstate.h from a massive number of compiles. Move the typedef to qemu/typedefs.h now, so I don't have to insert struct in front of VMStateDescription all over the place then. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190812052359.30071-15-armbru@redhat.com>
2019-05-10target/mips: Convert to CPUClass::tlb_fillRichard Henderson
Note that env->active_tc.PC is removed from the qemu_log as that value is garbage. The PC isn't recovered until cpu_restore_state, called from cpu_loop_exit_restore, called from do_raise_exception_err. Cc: Aleksandar Markovic <amarkovic@wavecomp.com> Cc: Aleksandar Rikalo <arikalo@wavecomp.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-04-18qom/cpu: Simplify how CPUClass:cpu_dump_state() printsMarkus Armbruster
CPUClass method dump_statistics() takes an fprintf()-like callback and a FILE * to pass to it. Most callers pass fprintf() and stderr. log_cpu_state() passes fprintf() and qemu_log_file. hmp_info_registers() passes monitor_fprintf() and the current monitor cast to FILE *. monitor_fprintf() casts it right back, and is otherwise identical to monitor_printf(). The callback gets passed around a lot, which is tiresome. The type-punning around monitor_fprintf() is ugly. Drop the callback, and call qemu_fprintf() instead. Also gets rid of the type-punning, since qemu_fprintf() takes NULL instead of the current monitor cast to FILE *. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20190417191805.28198-15-armbru@redhat.com>
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