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5ae7e037de
linux/arch/mips/kernel
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Jiaxun Yang 5ae7e037de MIPS: cevt-r4k: Offset the value used to clear compare interrupt 
In c0_compare_int_usable we clear compare interrupt by write value
just read out from counter to compare register.

However sometimes if those all instructions are graduated together
then it's possible that at the time compare register is written, the
counter haven't progressed, thus the interrupt is triggered again.

It also applies to QEMU that instructions is executed significantly
faster then counter.

Offset the value used to clear interrupt by one to prevent that happen.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2023-02-27 23:45:17 +01:00
..
syscalls arch: syscalls: simplify uapi/kapi directory creation 2022-03-31 12:03:46 +09:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
access-helper.h MIPS: Fix new sparse warnings 2021-04-07 16:11:05 +02:00
asm-offsets.c mips: rename PGD_ORDER to PGD_TABLE_ORDER 2022-07-17 17:14:42 -07:00
bmips_5xxx_init.S MIPS: BCM5xxx: Remove dead init_fpu code 2018-11-08 11:20:57 -08:00
bmips_vec.S
branch.c MIPS: kernel: include probes-common.h header in branch.c 2020-09-21 22:14:24 +02:00
cacheinfo.c drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION() 2021-09-01 10:29:10 +02:00
cevt-bcm1480.c MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
cevt-ds1287.c MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
cevt-gt641xx.c MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
cevt-r4k.c MIPS: cevt-r4k: Offset the value used to clear compare interrupt 2023-02-27 23:45:17 +01:00
cevt-sb1250.c MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
cevt-txx9.c mips: kernel: convert comma to semicolon 2020-12-28 22:32:28 +01:00
cmpxchg.c MIPS: fix typos in comments 2022-05-04 22:22:59 +02:00
cps-vec-ns16550.S mips: Add CPS_NS16550_WIDTH config 2020-05-22 09:12:52 +02:00
cps-vec.S MIPS: smp-cps: Don't rely on CP0_CMGCRBASE 2023-02-27 23:44:57 +01:00
cpu-probe.c MIPS: Remove VR41xx support 2022-07-14 11:52:29 +02:00
cpu-r3k-probe.c MIPS: Remove TX39XX support 2022-03-01 10:07:22 +01:00
crash_dump.c vmcore: convert copy_oldmem_page() to take an iov_iter 2022-04-29 14:37:59 -07:00
crash.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
csrc-bcm1480.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
csrc-ioasic.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
csrc-r4k.c mips: csrc-r4k: Mark R4K timer as unstable if CPU freq changes 2020-05-22 09:14:06 +02:00
csrc-sb1250.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
early_printk_8250.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
early_printk.c mips: unify prom_putchar() declarations 2018-07-17 09:40:17 -07:00
elf.c MIPS: Modernize READ_IMPLIES_EXEC 2022-02-23 13:08:30 +01:00
entry.S MIPS: Remove TX39XX support 2022-03-01 10:07:22 +01:00
fpu-probe.c MIPS: cpu-probe: move fpu probing/handling into its own file 2020-10-12 12:04:50 +02:00
fpu-probe.h MIPS: cpu-probe: move fpu probing/handling into its own file 2020-10-12 12:04:50 +02:00
ftrace.c MIPS: kernel: Remove not needed set_fs calls 2021-04-06 14:36:56 +02:00
genex.S MIPS: Remove TX39XX support 2022-03-01 10:07:22 +01:00
gpio_txx9.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
head.S MIPS: of: Introduce helper function to get DTB 2021-02-04 13:34:51 +01:00
i8253.c MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
idle.c MIPS: fix typos in comments 2022-05-04 22:22:59 +02:00
irq_txx9.c MIPS: Remove TX39XX support 2022-03-01 10:07:22 +01:00
irq-gt641xx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
irq-msc01.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
irq.c MIPS: Only use current_stack_pointer on GCC 2022-03-14 15:02:53 +01:00
jump_label.c MIPS: jump_label: Fix compat branch range check 2022-11-11 15:46:03 +01:00
kgdb.c MIPS: kernel: Drop kgdb_call_nmi_hook 2021-02-15 12:23:54 +01:00
kprobes.c MIPS: Use NOKPROBE_SYMBOL() instead of __kprobes annotation 2022-05-12 18:00:51 +02:00
linux32.c MIPS: Delete unused code in linux32.c 2018-08-01 13:20:27 -07:00
machine_kexec.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 230 2019-06-19 17:09:06 +02:00
Makefile kbuild: use obj-y instead extra-y for objects placed at the head 2022-10-02 18:04:05 +09:00
mcount.S
mips-cm.c mips: cm: Convert to bitfield API to fix out-of-bounds access 2021-11-02 10:53:52 +01:00
mips-cpc.c mips: cpc: Fix refcount leak in mips_cpc_default_phys_base 2022-04-26 15:11:25 +02:00
mips-mt-fpaff.c MIPS: Replace deprecated CPU-hotplug functions. 2021-08-05 10:57:01 +02:00
mips-mt.c mips: rename mt_init to mips_mt_init 2022-07-29 18:07:13 -07:00
mips-r2-to-r6-emul.c MIPS: Fix build error due to PTR used in more places 2022-01-27 09:04:19 +01:00
module.c jump_label: mips: move module NOP patching into arch code 2022-06-24 09:48:55 +02:00
octeon_switch.S
perf_event_mipsxx.c MIPS: fix typos in comments 2022-05-04 22:22:59 +02:00
perf_event.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
perf_regs.c MIPS: kernel: Support extracting off-line stack traces from user-space with perf 2021-02-04 21:55:45 +01:00
pm-cps.c MIPS: barrier: Add __SYNC() infrastructure 2019-10-07 09:42:17 -07:00
pm.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
probes-common.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
proc.c MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK 2022-07-14 11:49:40 +02:00
process.c treewide: use get_random_u32_below() instead of deprecated function 2022-11-18 02:15:15 +01:00
prom.c MIPS: move from strlcpy with unused retval to strscpy 2022-09-12 15:34:04 +02:00
ptrace32.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
ptrace.c mips: ptrace: user_regset_copyin_ignore() always returns 0 2022-11-15 14:30:40 -08:00
r4k_fpu.S MIPS: Fix build error due to PTR used in more places 2022-01-27 09:04:19 +01:00
r4k_switch.S
r4k-bugs64.c MIPS: remove asm/war.h 2022-02-22 09:35:49 +01:00
r2300_fpu.S MIPS: Fix build error due to PTR used in more places 2022-01-27 09:04:19 +01:00
r2300_switch.S
relocate_kernel.S MIPS: fix duplicate definitions for exported symbols 2022-11-11 15:44:44 +01:00
relocate.c MIPS: move from strlcpy with unused retval to strscpy 2022-09-12 15:34:04 +02:00
reset.c mips: Use do_kernel_power_off() 2022-05-19 19:30:31 +02:00
rtlx-cmp.c
rtlx-mt.c MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
rtlx.c
scall32-o32.S MIPS: remove asm/war.h 2022-02-22 09:35:49 +01:00
scall64-n32.S MIPS: Fix build error due to PTR used in more places 2022-01-27 09:04:19 +01:00
scall64-n64.S MIPS: remove asm/war.h 2022-02-22 09:35:49 +01:00
scall64-o32.S MIPS: Fix build error due to PTR used in more places 2022-01-27 09:04:19 +01:00
segment.c mips: kernel: convert to DEFINE_SHOW_ATTRIBUTE 2022-09-19 16:40:17 +02:00
setup.c bitmap patches for v6.1-rc1 2022-10-10 12:49:34 -07:00
signal32.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
signal_n32.c MIPS: remove asm/war.h 2022-02-22 09:35:49 +01:00
signal_o32.c signal: Remove task parameter from force_sig 2019-05-27 09:36:28 -05:00
signal-common.h
signal.c ptrace: Cleanups for v5.18 2022-03-28 17:29:53 -07:00
smp-bmips.c MIPS: BMIPS: Remove use of irq_cpu_offline 2021-10-20 20:06:32 +01:00
smp-cmp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 182 2019-05-30 11:29:20 -07:00
smp-cps.c MIPS: smp-cps: Don't rely on CP0_CMGCRBASE 2023-02-27 23:44:57 +01:00
smp-mt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 182 2019-05-30 11:29:20 -07:00
smp-up.c
smp.c MIPS: smp: optimization for flush_tlb_mm when exiting 2022-05-12 17:56:21 +02:00
spinlock_test.c mips: kernel: use DEFINE_DEBUGFS_ATTRIBUTE with debugfs_create_file_unsafe() 2021-03-14 14:09:49 +01:00
spram.c mips: Add CONFIG/CONFIG6/Cause reg fields macro 2020-05-22 09:12:22 +02:00
stacktrace.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
sync-r4k.c MIPS: sync-r4k: do slave counter synchronization with disabled HW interrupts 2020-01-22 10:16:18 -08:00
syscall.c MIPS: Fix build error due to PTR used in more places 2022-01-27 09:04:19 +01:00
sysrq.c MIPS: constify sysrq_key_op 2020-05-15 14:53:19 +02:00
time.c MIPS: Fix CP0 counter erratum detection for R4k CPUs 2022-04-29 15:52:00 +02:00
topology.c drivers/base/node: consolidate node device subsystem initialization in node_dev_init() 2022-03-22 15:57:10 -07:00
traps.c MIPS: fix fortify panic when copying asm exception handlers 2022-03-07 13:09:28 +01:00
unaligned.c MIPS: Handle address errors for accesses above CPU max virtual user address 2022-02-25 09:36:05 +01:00
uprobes.c MIPS: Fix fall-through warnings for Clang 2021-10-13 14:47:42 -05:00
vdso.c treewide: use get_random_u32_below() instead of deprecated function 2022-11-18 02:15:15 +01:00
vmlinux.lds.S MIPS: vmlinux.lds.S: Fix appended dtb not properly aligned 2021-03-16 22:53:08 +01:00
vpe-cmp.c MIPS: vpe-cmp: fix possible memory leak while module exiting 2022-11-22 13:09:36 +01:00
vpe-mt.c MIPS: vpe-mt: drop physical_memsize 2023-02-20 15:11:01 +01:00
vpe.c MIPS: vpe: Remove vpe_getcwd 2021-01-27 21:49:16 +01:00
watch.c MIPS: Use fallthrough for arch/mips 2020-05-07 11:55:47 +02:00