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linux-stable-mirror/arch/sparc/include/asm
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Masami Hiramatsu (Google)andSteven Rostedt a494d3c8d5 ring-buffer: Flush and stop persistent ring buffer on panic 
On real hardware, panic and machine reboot may not flush hardware cache
to memory. This means the persistent ring buffer, which relies on a
coherent state of memory, may not have its events written to the buffer
and they may be lost. Moreover, there may be inconsistency with the
counters which are used for validation of the integrity of the
persistent ring buffer which may cause all data to be discarded.

To avoid this issue, stop recording of the ring buffer on panic and
flush the cache of the ring buffer's memory.

Fixes: e645535a95 ("tracing: Add option to use memmapped memory for trace boot instance")
Cc: stable@vger.kernel.org
Cc: Will Deacon <will@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Ian Rogers <irogers@google.com>
Link: https://patch.msgid.link/177751969602.2136606.12031934362587643488.stgit@mhiramat.tok.corp.google.com
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2026-05-21 08:20:58 -04:00
..
vdso
sparc64: vdso: Implement clock_gettime64()
2026-03-11 10:18:33 +01:00
adi_64.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
adi.h
…
apb.h
…
asm-offsets.h
…
asm-prototypes.h
sparc: move the XOR code to lib/raid/
2026-04-02 23:36:19 -07:00
asm.h
…
asmmacro.h
…
atomic_32.h
locking/atomic: sparc: add preprocessor symbols
2023-06-05 09:57:17 +02:00
atomic_64.h
locking/atomic: sparc: add preprocessor symbols
2023-06-05 09:57:17 +02:00
atomic.h
…
auxio_32.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
auxio_64.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
auxio.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
backoff.h
…
barrier_32.h
…
barrier_64.h
…
barrier.h
…
bbc.h
…
bitext.h
…
bitops_32.h
…
bitops_64.h
sparc: Add __attribute_const__ to ffs()-family implementations
2025-09-08 14:58:52 -07:00
bitops.h
…
btext.h
…
bug.h
…
cache.h
…
cacheflush_32.h
mm: Introduce flush_cache_vmap_early()
2023-12-14 00:23:17 -08:00
cacheflush_64.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
cacheflush.h
…
cachetlb_32.h
…
cachetype.h
Introduce cpu_dcache_is_aliasing() across all architectures
2024-02-22 15:27:19 -08:00
chafsr.h
…
checksum_32.h
…
checksum_64.h
…
checksum.h
…
chmctrl.h
…
clock.h
…
clocksource.h
sparc64: vdso: Switch to the generic vDSO library
2026-03-11 10:18:32 +01:00
cmpxchg_32.h
sparc32: add __cmpxchg_u{8,16}() and teach __cmpxchg() to handle those sizes
2024-04-09 22:06:00 -07:00
cmpxchg_64.h
sparc: mark __arch_xchg() as __always_inline
2023-07-13 09:54:32 -07:00
cmpxchg.h
…
compat_signal.h
…
compat.h
…
contregs.h
…
cpu_type.h
…
cpudata_32.h
…
cpudata_64.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
cpudata.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
current.h
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dcr.h
…
dcu.h
…
delay_32.h
…
delay_64.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
delay.h
…
device.h
…
dma-mapping.h
dma-mapping: no need to pass a bus_type into get_arch_dma_ops()
2023-02-15 12:35:20 +01:00
dma.h
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ebus_dma.h
…
ecc.h
…
eeprom.h
…
elf_32.h
…
elf_64.h
sparc/module: Add R_SPARC_UA64 relocation handling
2025-09-19 20:23:08 +02:00
elf.h
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estate.h
…
extable.h
…
fbio.h
…
fhc.h
…
floppy_32.h
floppy: Remove unused CROSS_64KB() macro from arch/ code
2025-08-25 14:46:42 -06:00
floppy_64.h
Merge tag 'sparc-for-6.18-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/alarsson/linux-sparc
2025-10-04 10:59:06 -07:00
floppy.h
…
fpumacro.h
…
ftrace.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
futex_32.h
…
futex_64.h
…
futex.h
…
hardirq_32.h
…
hardirq_64.h
…
hardirq.h
…
head_32.h
…
head_64.h
…
head.h
…
hibernate.h
…
highmem.h
…
hugetlb.h
sparc64: remove hugetlb_free_pgd_range()
2025-07-24 19:12:31 -07:00
hvtramp.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
hw_irq.h
…
hypervisor.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
idprom.h
…
intr_queue.h
…
io_32.h
…
io_64.h
sparc64: fix prototypes of reads[bwl]()
2025-09-19 20:55:34 +02:00
io-unit.h
…
io.h
…
ioctls.h
…
iommu_32.h
…
iommu_64.h
…
iommu-common.h
…
iommu.h
…
irq_32.h
init: consolidate prototypes in linux/init.h
2023-06-09 17:44:16 -07:00
irq_64.h
nmi_backtrace: allow excluding an arbitrary CPU
2023-08-18 10:19:00 -07:00
irq.h
…
irqflags_32.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
irqflags_64.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
irqflags.h
…
jump_label.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
Kbuild
ring-buffer: Flush and stop persistent ring buffer on panic
2026-05-21 08:20:58 -04:00
kdebug_32.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
kdebug_64.h
…
kdebug.h
…
kgdb.h
…
kprobes.h
kprobes: unify kprobes_exceptions_nofify() prototypes
2023-11-10 19:59:05 +09:00
ldc.h
sparc: Fix typos
2024-02-16 16:50:25 +01:00
leon_amba.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
leon_pci.h
…
leon.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
lsu.h
…
machines.h
…
mbus.h
…
mc146818rtc_32.h
…
mc146818rtc_64.h
…
mc146818rtc.h
…
mdesc.h
…
memctrl.h
…
mman.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
mmu_32.h
…
mmu_64.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
mmu_context_32.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
mmu_context_64.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
mmu_context.h
…
mmu.h
…
mmzone.h
arch, mm: move definition of node_data to generic code
2024-09-03 21:15:28 -07:00
mxcc.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
nmi.h
watchdog/hardlockup: declare arch_touch_nmi_watchdog() only in linux/nmi.h
2023-06-19 16:25:29 -07:00
ns87303.h
…
obio.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
opcodes.h
crypto: sparc - move opcodes.h into asm directory
2025-05-05 18:20:43 +08:00
openprom.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
oplib_32.h
…
oplib_64.h
sparc64: Fix incorrect function signature and add prototype for prom_cif_init
2024-07-11 15:58:28 +02:00
oplib.h
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page_32.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
page_64.h
treewide: provide a generic clear_user_page() variant
2026-01-20 19:24:39 -08:00
page.h
asm-generic: provide generic page_to_phys and phys_to_page implementations
2024-10-28 21:44:28 +00:00
parport_64.h
sparc: parport: Replace deprecated strcpy() with strscpy() in ecpp_probe()
2025-09-26 17:26:43 +02:00
parport.h
sparc32: Fix parport build with sparc32
2024-03-08 21:21:00 +01:00
pbm.h
…
pci.h
…
pcic.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
pcr.h
…
percpu_32.h
…
percpu_64.h
…
percpu.h
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perf_event.h
…
pgalloc_32.h
…
pgalloc_64.h
sparc: add pte_free_defer() for pte_t *pgtable_t
2023-08-18 10:12:24 -07:00
pgalloc.h
…
pgtable_32.h
arch, mm: consolidate empty_zero_page
2026-04-05 13:53:01 -07:00
pgtable_64.h
mm: cache struct page for empty_zero_page and return it from ZERO_PAGE()
2026-04-05 13:53:01 -07:00
pgtable.h
…
pgtsrmmu.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
pil.h
…
processor_32.h
sparc64: vdso: Introduce vdso/processor.h
2026-03-11 10:18:32 +01:00
processor_64.h
sparc64: vdso: Introduce vdso/processor.h
2026-03-11 10:18:32 +01:00
processor.h
sparc64: vdso: Introduce vdso/processor.h
2026-03-11 10:18:32 +01:00
prom.h
of: Make devtree_lock declaration private
2023-04-10 18:32:31 -05:00
psr.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
ptrace.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
qrwlock.h
…
qspinlock.h
…
ross.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
sbi.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
scratchpad.h
…
seccomp.h
…
sections.h
…
setup.h
arch, mm: consolidate empty_zero_page
2026-04-05 13:53:01 -07:00
sfafsr.h
…
sfp-machine_32.h
…
sfp-machine_64.h
…
sfp-machine.h
…
shmparam_32.h
…
shmparam_64.h
…
shmparam.h
…
sigcontext.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
signal.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
smp_32.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
smp_64.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
smp.h
…
sparsemem.h
…
spinlock_32.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
spinlock_64.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
spinlock_types.h
…
spinlock.h
…
spitfire.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
stacktrace.h
…
starfire.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
string_32.h
…
string_64.h
…
string.h
…
sunbpp.h
…
swift.h
…
switch_to_32.h
…
switch_to_64.h
sparc: Fix typos
2024-02-16 16:50:25 +01:00
switch_to.h
…
syscall.h
syscall.h: introduce syscall_set_nr()
2025-05-11 17:48:15 -07:00
syscalls.h
sparc: Add architecture support for clone3
2026-02-06 15:03:43 +01:00
termbits.h
…
thread_info_32.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
thread_info_64.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
thread_info.h
…
timer_32.h
…
timer_64.h
init: consolidate prototypes in linux/init.h
2023-06-09 17:44:16 -07:00
timer.h
…
timex_32.h
…
timex_64.h
…
timex.h
…
tlb_32.h
…
tlb_64.h
mm: convert __HAVE_ARCH_TLB_REMOVE_TABLE to CONFIG_HAVE_ARCH_TLB_REMOVE_TABLE config
2026-02-06 15:47:19 -08:00
tlb.h
…
tlbflush_32.h
…
tlbflush_64.h
sparc/mm: replace batch->active with is_lazy_mmu_mode_active()
2026-01-20 19:24:35 -08:00
tlbflush.h
…
topology_32.h
…
topology_64.h
…
topology.h
…
trap_block.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
traps.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
tsb.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
tsunami.h
…
ttable.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
turbosparc.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
uaccess_32.h
sparc32: Fix truncated relocation errors when linking large kernels
2024-07-11 15:58:18 +02:00
uaccess_64.h
mm: Introduce untagged_addr_remote()
2023-03-16 13:08:39 -07:00
uaccess.h
…
unistd.h
sparc: Add architecture support for clone3
2026-02-06 15:03:43 +01:00
upa.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
uprobes.h
…
user.h
…
vaddrs.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
vdso.h
sparc64: vdso2c: Drop sym_vvar_start handling
2026-03-11 10:18:32 +01:00
video.h
Fix access to video_is_primary_device() when compiled without CONFIG_VIDEO
2025-09-10 09:35:33 -05:00
viking.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
vio.h
driver core: have match() callback in struct bus_type take a const *
2024-07-03 15:16:54 +02:00
visasm.h
sparc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
2025-09-26 17:06:09 +02:00
vmalloc.h
…
winmacro.h
…