Alexandre Ghiti ab83647fad riscv: Add qspinlock support ... In order to produce a generic kernel, a user can select CONFIG_COMBO_SPINLOCKS which will fallback at runtime to the ticket spinlock implementation if Zabha or Ziccrse are not present. Note that we can't use alternatives here because the discovery of extensions is done too late and we need to start with the qspinlock implementation because the ticket spinlock implementation would pollute the spinlock value, so let's use static keys. This is largely based on Guo's work and Leonardo reviews at [1]. Link: https://lore.kernel.org/linux-riscv/20231225125847.2778638-1-guoren@kernel.org/ [1] Signed-off-by: Guo Ren <guoren@kernel.org> Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> Reviewed-by: Andrea Parri <parri.andrea@gmail.com> Link: https://lore.kernel.org/r/20241103145153.105097-14-alexghiti@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>		2024-11-11 07:33:20 -08:00
..
bitops	bitops: Change function return types from long to int	2024-05-03 17:04:50 +02:00
vdso
access_ok.h	uaccess: remove CONFIG_SET_FS	2022-02-25 09:36:06 +01:00
agp.h	char/agp: introduce asm-generic/agp.h	2023-02-13 22:13:29 +01:00
archrandom.h	random: handle archrandom with multiple longs	2022-07-25 13:26:14 +02:00
asm-offsets.h
asm-prototypes.h
atomic64.h
atomic.h	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
audit_change_attr.h
audit_dir_write.h
audit_read.h
audit_signal.h
audit_write.h
barrier.h	sched: Add missing memory barrier in switch_mm_cid	2024-04-16 13:59:45 +02:00
bitops.h
bitsperlong.h
bug.h	bug: Improve comment	2024-05-07 14:20:48 +02:00
cache.h
cacheflush.h	mm: Introduce flush_cache_vmap_early()	2023-12-14 00:23:17 -08:00
cfi.h	cfi: Flip headers	2023-12-15 16:25:55 -08:00
checksum.h	asm-generic: Improve csum_fold	2024-01-17 17:52:29 -08:00
cmpxchg-local.h	asm-generic: Fix 32 bit __generic_cmpxchg_local	2024-01-05 23:19:14 +01:00
cmpxchg.h	asm-generic: avoid __generic_cmpxchg_local warnings	2023-04-04 17:58:11 +02:00
codetag.lds.h	lib: add allocation tagging support for memory allocation profiling	2024-04-25 20:55:52 -07:00
compat.h	asm-generic: compat: fix compat_arg_u64() and compat_arg_u64_dual()	2022-11-01 10:20:11 +11:00
current.h	asm-generic: current: Don't include thread-info.h if building asm	2023-08-26 22:38:49 +02:00
delay.h
device.h
div64.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
early_ioremap.h
emergency-restart.h
error-injection.h	docs: fault-injection: add requirements of error injectable functions	2023-02-02 22:50:00 -08:00
exec.h
extable.h
fixmap.h	fixmap: Remove unused set_fixmap_offset_io()	2024-07-11 17:41:23 +02:00
flat.h
ftrace.h
futex.h
getorder.h
hardirq.h
hugetlb.h	mm: provide mm_struct and address to huge_ptep_get()	2024-07-12 15:52:15 -07:00
hw_irq.h
hyperv-tlfs.h	hyperv-fixes for v6.9-rc4	2024-04-11 16:23:56 -07:00
int-ll64.h
io.h	asm-generic/io.h: kill vmalloc.h dependency	2024-04-25 20:55:50 -07:00
ioctl.h
iomap.h	asm-generic/iomap.h: remove ARCH_HAS_IOREMAP_xx macros	2023-08-18 10:12:32 -07:00
irq_regs.h
irq_work.h
irq.h
irqflags.h
Kbuild	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
kdebug.h
kmap_size.h
kprobes.h
kvm_para.h
kvm_types.h
linkage.h
local64.h	locking/generic: Wire up local{,64}_try_cmpxchg()	2023-04-29 09:09:09 +02:00
local.h	locking/generic: Wire up local{,64}_try_cmpxchg()	2023-04-29 09:09:09 +02:00
logic_io.h
mcs_spinlock.h
memory_model.h	mm, arch: add generic implementation of pfn_valid() for FLATMEM	2023-02-09 16:51:41 -08:00
mm_hooks.h	mm: remove arch_unmap()	2024-09-01 20:26:13 -07:00
mmiowb_types.h
mmiowb.h
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
module.h
module.lds.h
mshyperv.h	hyperv-fixes for v6.9-rc4	2024-04-11 16:23:56 -07:00
msi.h	genirq: Get rid of GENERIC_MSI_IRQ_DOMAIN	2022-11-17 15:15:20 +01:00
nommu_context.h
numa.h	arch_numa: switch over to numa_memblks	2024-09-03 21:15:32 -07:00
param.h
parport.h
pci_iomap.h	PCI: Stub __pci_ioport_map() for arches that don't support it at all	2022-07-29 12:01:00 -05:00
pci.h	asm-generic: Add new pci.h and use it	2022-07-22 17:34:57 -05:00
percpu.h	percpu: Fix self-assignment of __old in raw_cpu_generic_try_cmpxchg()	2023-06-08 10:28:39 +02:00
pgalloc.h	mm: change inlined allocation helpers to account at the call site	2024-04-25 20:55:59 -07:00
pgtable_uffd.h
pgtable-nop4d.h
pgtable-nopmd.h	mm: recover pud_leaf() definitions in nopmd case	2024-03-13 12:12:21 -07:00
pgtable-nopud.h
preempt.h	riscv: support PREEMPT_DYNAMIC with static keys	2023-08-31 00:18:34 -07:00
qrwlock_types.h	locking/qrwlock: Change "queue rwlock" to "queued rwlock"	2022-05-11 16:27:04 +02:00
qrwlock.h	asm-generic changes for 5.19	2022-05-26 10:50:30 -07:00
qspinlock_types.h
qspinlock.h	riscv: Add qspinlock support	2024-11-11 07:33:20 -08:00
resource.h
runtime-const.h	runtime constants: add default dummy infrastructure	2024-06-19 12:34:34 -07:00
rwonce.h
seccomp.h
sections.h	jump_label,module: Don't alloc static_key_mod for __ro_after_init keys	2024-03-22 11:18:16 +01:00
serial.h
set_memory.h
shmparam.h
signal.h	asm-generic: Remove empty #ifdef SA_RESTORER	2022-09-10 09:56:53 +02:00
simd.h
softirq_stack.h	asm-generic: Conditionally enable do_softirq_own_stack() via Kconfig.	2022-09-05 17:20:55 +02:00
spinlock_types.h	asm-generic: ticket-lock: Reuse arch_spinlock_t of qspinlock	2024-11-11 07:33:16 -08:00
spinlock.h	asm-generic: ticket-lock: Add separate ticket-lock.h	2024-11-11 07:33:17 -08:00
statfs.h
string.h
switch_to.h
syscall.h	ptrace: Create ptrace_report_syscall_{entry,exit} in ptrace.h	2022-03-10 13:35:08 -06:00
syscalls.h	syscalls: mmap(): use unsigned offset type consistently	2024-06-25 15:57:38 +02:00
ticket_spinlock.h	riscv: Add qspinlock support	2024-11-11 07:33:20 -08:00
timex.h
tlb.h	mm/mmu_gather: add __tlb_remove_folio_pages()	2024-02-22 15:27:17 -08:00
tlbflush.h
topology.h
trace_clock.h
uaccess.h	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
user.h
vermagic.h
vga.h
video.h	arch: Rename fbdev header and source files	2024-05-03 17:07:50 +02:00
vmlinux.lds.h	asm-generic updates for 6.12	2024-09-26 11:54:40 -07:00
word-at-a-time.h	kernel.h: removed REPEAT_BYTE from kernel.h	2024-02-01 09:47:59 -08:00
xor.h	lib/xor: make xor prototypes more friendly to compiler vectorization	2022-02-11 20:39:39 +11:00