Translators are no longer required to free tcg temporaries.
Reviewed-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Translators are no longer required to free tcg temporaries,
therefore there's no need to record temps for later freeing.
Replace the few uses with tcg_temp_new.
Reviewed-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
According to the 3A5000 manual 4.1 implement Chip Configuration
Version Register(0x0000).
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230227071046.1445572-1-gaosong@loongson.cn>
Since commit a0e61807a3 ("qapi: Remove QMP events and commands from
user-mode builds") we don't generate the "qapi-commands-machine.h"
header in a user-emulation-only build.
Extract the QMP functions from cpu.c (which is always compiled)
to the new 'loongarch-qmp-cmds.c' unit (which is only compiled
when system emulation is selected).
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230223155540.30370-4-philmd@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
In preparation for returning the number of insns generated
via the same pointer. Adjust only the prototypes so far.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230227135202.9710-22-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Missed in 0093b9a5ee ("target/loongarch: Adjust functions
and structure to support user-mode") while cleaning commit
f84a2aacf5 ("target/loongarch: Add LoongArch IOCSR instruction").
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221217172907.8364-4-philmd@linaro.org>
The cpu is used in both user and system emulation context while
sysbus.h is system-only. Remove it since it's not needed anyway.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221217172907.8364-3-philmd@linaro.org>
Tracked down with the help of scripts/clean-includes.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20230202133830.2152150-21-armbru@redhat.com>
Print both the raw field and the resolved pc-relative
address, as we do for branches.
Reviewed-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
While jirl shares the same instruction format as bne etc,
it is not assembled the same. In particular, rd is printed
first not second and the immediate is not pc-relative.
Decode into the arg_rr_i structure, which prints correctly.
This changes the "offs" member to "imm", to update translate.
Reviewed-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reuse the decodetree based disassembler from
target/loongarch/ for tcg/loongarch64/.
The generation of decode-insns.c.inc into ./libcommon.fa.p/ could
eventually result in conflict, if any other host requires the same
trick, but this is good enough for now.
Reviewed-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The 'hwaddr' type is defined in "exec/hwaddr.h" as:
hwaddr is the type of a physical address
(its size can be different from 'target_ulong').
All definitions use the 'HWADDR_' prefix, except TARGET_FMT_plx:
$ fgrep define include/exec/hwaddr.h
#define HWADDR_H
#define HWADDR_BITS 64
#define HWADDR_MAX UINT64_MAX
#define TARGET_FMT_plx "%016" PRIx64
^^^^^^
#define HWADDR_PRId PRId64
#define HWADDR_PRIi PRIi64
#define HWADDR_PRIo PRIo64
#define HWADDR_PRIu PRIu64
#define HWADDR_PRIx PRIx64
#define HWADDR_PRIX PRIX64
Since hwaddr's size can be *different* from target_ulong, it is
very confusing to read one of its format using the 'TARGET_FMT_'
prefix, normally used for the target_long / target_ulong types:
$ fgrep TARGET_FMT_ include/exec/cpu-defs.h
#define TARGET_FMT_lx "%08x"
#define TARGET_FMT_ld "%d"
#define TARGET_FMT_lu "%u"
#define TARGET_FMT_lx "%016" PRIx64
#define TARGET_FMT_ld "%" PRId64
#define TARGET_FMT_lu "%" PRIu64
Apparently this format was missed during commit a8170e5e97
("Rename target_phys_addr_t to hwaddr"), so complete it by
doing a bulk-rename with:
$ sed -i -e s/TARGET_FMT_plx/HWADDR_FMT_plx/g $(git grep -l TARGET_FMT_plx)
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230110212947.34557-1-philmd@linaro.org>
[thuth: Fix some warnings from checkpatch.pl along the way]
Signed-off-by: Thomas Huth <thuth@redhat.com>
Convert the loongarch CPU class to use 3-phase reset, so it doesn't
need to use device_class_set_parent_reset() any more.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Edgar E. Iglesias <edgar@zeroasic.com>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Message-id: 20221124115023.2437291-8-peter.maydell@linaro.org
Tweak the semantic patch to drop redundant parenthesis around the
return expression.
Coccinelle drops a comment in hw/rdma/vmw/pvrdma_cmd.c; restored
manually.
Coccinelle messes up vmdk_co_create(), not sure why. Change dropped,
will be done manually in the next commit.
Line breaks in target/avr/cpu.h and hw/rdma/vmw/pvrdma_cmd.c tidied up
manually.
Whitespace in tools/virtiofsd/fuse_lowlevel.c tidied up manually.
checkpatch.pl complains "return of an errno should typically be -ve"
two times for hw/9pfs/9p-synth.c. Preexisting, the patch merely makes
it visible to checkpatch.pl.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221122134917.1217307-2-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Regarding the patchset v3 has been merged into main line, and not
approved, this patch updates to patchset v4.
Fixes: 2419978c ("target/loongarch: Fix emulation of float-point disable exception")
Link: https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg00808.html
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Rui Wang <wangrui@loongson.cn>
Message-Id: <20221107024526.702297-3-wangrui@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Regarding the patchset v3 has been merged into main line, and not
approved, this patch updates to patchset v4.
Fixes: b4bda200 ("target/loongarch: Adjust the layout of hardware flags bit fields")
Link: https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg00808.html
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Rui Wang <wangrui@loongson.cn>
Message-Id: <20221107024526.702297-2-wangrui@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
We need to emulate it to generate a floating point disable exception
when CSR.EUEN.FPE is zero.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Rui Wang <wangrui@loongson.cn>
Message-Id: <20221104040517.222059-3-wangrui@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Rui Wang <wangrui@loongson.cn>
Message-Id: <20221104040517.222059-2-wangrui@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
When the address is invalid address, We should set exception_index
according to MMUAccessType, and EXCCODE_ADEF need't update badinstr.
Otherwise, The system enters an infinite loop. e.g:
run test.c on system mode
test.c:
#include<stdio.h>
void (*func)(int *);
int main()
{
int i = 8;
void *ptr = (void *)0x4000000000000000;
func = ptr;
func(&i);
return 0;
}
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20221101073210.3934280-2-gaosong@loongson.cn>
We need subcodes to distinguish the same excode cs->exception_indexs,
such as EXCCODE_ADEF/EXCCODE_ADEM.
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20221101073210.3934280-1-gaosong@loongson.cn>
1. When cpu read or write extioi COREISR reg, it should access
the reg belonged to itself, so the cpu index of 's->coreisr'
is current cpu number. Using MemTxAttrs' requester_id to get
the cpu index.
2. it need not to mask 0x1f when calculate the coreisr array index.
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221021015307.2570844-3-yangxiaojuan@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20220930024510.800005-3-gaosong@loongson.cn>
use gen_bstrins/gen_bstrpic to replace gen_rr_ms_ls.
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220930024510.800005-2-gaosong@loongson.cn>
The availability of tb->pc will shortly be conditional.
Introduce accessor functions to minimize ifdefs.
Pass around a known pc to places like tcg_gen_code,
where the caller must already have the value.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Pass these along to translator_loop -- pc may be used instead
of tb->pc, and host_pc is currently unused. Adjust all targets
at one time.
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Tested-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
1. Add some information about how to boot the LoongArch virt
machine by uefi bios and linux kernel and how to access the
source code or binary file.
2. Move the explanation of LoongArch system emulation in the
target/loongarch/README to docs/system/loongarch/loongson3.rst
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20220812091957.3338126-1-yangxiaojuan@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
All of the fpu operations are defined with TCG_CALL_NO_WG, but they
all modify FCSR0. The most efficient way to fix this is to remove
cpu_fcsr0, and instead use explicit load and store operations for the
two instructions that manipulate that value.
Acked-by: Qi Hu <huqi@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Reported-by: Feiyang Chen <chenfeiyang@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
GDB LoongArch fpu use fcc register, update gdb_set_fpu()
and gdb_get_fpu() to match it.
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220805033523.1416837-6-gaosong@loongson.cn>
Rename loongarch-fpu64.xml to loongarch-fpu.xml and update
loongarch-fpu.xml to match upstream GDB [1]
[1]:https://github.com/bminor/binutils-gdb/blob/master/gdb/features/loongarch/fpu.xml
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220805033523.1416837-5-gaosong@loongson.cn>
GDB LoongArch add a register orig_a0, see the base64.xml [1].
We should add the orig_a0 to match the upstream GDB.
[1]: https://github.com/bminor/binutils-gdb/blob/master/gdb/features/loongarch/base64.xml
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220805033523.1416837-2-gaosong@loongson.cn>
The macros SET_FPU_* are used to set corresponding bits of fcsr.
Unfortunately it forgets to set the result and it causes fcsr's
"CAUSE" never being updated. This patch is to fix this bug.
Signed-off-by: Qi Hu <huqi@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20220804132450.314329-1-huqi@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
1. Rename 'loongson3.c' to 'virt.c' and change the meson.build file.
2. Rename 'loongson3.rst' to 'virt.rst'.
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Message-Id: <20220729073018.27037-2-yangxiaojuan@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Add LoongArch flatted device tree, adding cpu device node, firmware cfg node,
pcie node into it, and create fdt rom memory region. Now fdt info is not
full since only uefi bios uses fdt, linux kernel does not use fdt.
Loongarch Linux kernel uses acpi table which is full in qemu virt
machine.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Message-Id: <20220712083206.4187715-7-yangxiaojuan@loongson.cn>
[rth: Set TARGET_NEED_FDT, add fdt to meson.build]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We should result zero when exception is invalid and operation is nan
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20220716085426.3098060-4-gaosong@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We should config cpucfg[20] to set value for the scache's ways, sets,
and size arguments when loongarch cpu init. However, the old code
wirte 'sets argument' twice, so we change one of them to 'size argument'.
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220715064829.1521482-1-yangxiaojuan@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The boundary size of cpucfg array should be 0 to ARRAY_SIZE(cpucfg)-1.
So, using index bigger than max boundary to access cpucfg[] must be
forbidden.
Fix coverity CID: 1489760
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220715060740.1500628-6-yangxiaojuan@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Fix out-of-bounds errors when access excp_names[] array. the valid
boundary size of excp_names should be 0 to ARRAY_SIZE(excp_names)-1.
However, the general code do not consider the max boundary.
Fix coverity CID: 1489758
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220715060740.1500628-4-yangxiaojuan@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The cpu_model argument may already have the '-loongarch-cpu' suffix,
e.g. when using the default for the LS7A1000 machine. If that fails,
try again with the suffix. Validate that the object created by the
function is derived from the proper base class.
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220715060740.1500628-2-yangxiaojuan@loongson.cn>
[rth: Try without and then with the suffix, to avoid testsuite breakage.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We should make sure that tlb is clean when cpu reset.
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20220705070950.2364243-1-gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
There is such error info when running linux kernel:
tcg_handle_interrupt: assertion failed: (qemu_mutex_iothread_locked()).
calling stack:
#0 in raise () at /lib64/libc.so.6
#1 in abort () at /lib64/libc.so.6
#2 in g_assertion_message_expr.cold () at /lib64/libglib-2.0.so.0
#3 in g_assertion_message_expr () at /lib64/libglib-2.0.so.0
#4 in tcg_handle_interrupt (cpu=0x632000030800, mask=2) at ../accel/tcg/tcg-accel-ops.c:79
#5 in cpu_interrupt (cpu=0x632000030800, mask=2) at ../softmmu/cpus.c:248
#6 in loongarch_cpu_set_irq (opaque=0x632000030800, irq=11, level=0)
at ../target/loongarch/cpu.c:100
#7 in helper_csrwr_ticlr (env=0x632000039440, val=1) at ../target/loongarch/csr_helper.c:85
#8 in code_gen_buffer ()
#9 in cpu_tb_exec (cpu=0x632000030800, itb=0x7fff946ac280, tb_exit=0x7ffe4fcb6c30)
at ../accel/tcg/cpu-exec.c:358
Add mutex iothread lock around loongarch_cpu_set_irq in csrwr_ticlr() to
fix the bug.
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220701093407.2150607-10-yangxiaojuan@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
By the manual of LoongArch CSR, the VS field(18:16 bits) of
ECFG reg means that the number of instructions between each
exception entry is 2^VS.
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220701093407.2150607-9-yangxiaojuan@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Some functions and member of the structure are different with softmmu-mode
So we need adjust them to support user-mode.
Signed-off-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220624031049.1716097-12-gaosong@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220624031049.1716097-11-gaosong@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Richard Henderson
Song Gao
Peter Maydell
Philippe Mathieu-Daudé
Anton Johansson
Bernhard Beschow
Markus Armbruster
Rui Wang
Xiaojuan Yang
Qi Hu