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eb7fd7aa35bfcc1e1fda4ecc42ccfcb526cdc780
linux/arch/riscv/include/asm
History
Charlie Jenkins 5b3d6103b3 riscv: entry: Split ret_from_fork() into user and kernel 
This function was unified into a single function in commit ab9164dae2
("riscv: entry: Consolidate ret_from_kernel_thread into ret_from_fork").
However that imposed a performance degradation.

Partially reverting this commit to have ret_from_fork() split again,
results in a 1% increase on the number of times fork is able to be called
per second.

Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/all/20250320-riscv_optimize_entry-v6-2-63e187e26041@rivosinc.com
2025-04-29 08:27:10 +02:00
..
vdso
riscv: vdso: Switch to generic storage implementation
2025-02-21 09:54:02 +01:00
vendor_extensions
riscv: hwprobe: Add thead vendor extension probing
2025-01-18 12:33:35 -08:00
acenv.h
RISC-V: Add support to build the ACPI core
2023-06-01 08:45:01 -07:00
acpi.h
ACPI: RISCV: Make acpi_numa_get_nid() to be static
2024-09-17 12:02:48 -07:00
alternative-macros.h
riscv: Provide all alternative macros all the time
2025-04-14 13:07:08 +00:00
alternative.h
Merge patch series "Add non-coherent DMA support for AX45MP"
2023-09-08 11:24:34 -07:00
arch_hweight.h
RISC-V: separate Zbb optimisations requiring and not requiring toolchain support
2025-03-18 08:53:02 +00:00
archrandom.h
RISC-V: Implement archrandom when Zkr is available
2024-01-17 18:20:49 -08:00
asm-extable.h
riscv: select DCACHE_WORD_ACCESS for efficient unaligned access HW
2024-01-09 20:18:20 -08:00
asm-offsets.h
…
asm-prototypes.h
riscv: entry: Split ret_from_fork() into user and kernel
2025-04-29 08:27:10 +02:00
asm.h
riscv: Add runtime constant support
2025-03-20 09:15:03 +00:00
assembler.h
RISC-V: Add arch functions to support hibernation/suspend-to-disk
2023-04-29 11:25:13 -07:00
atomic.h
Merge patch series "Rework & improve riscv cmpxchg.h and atomic.h"
2024-04-28 14:50:33 -07:00
barrier.h
riscv: Add Zawrs support for spinlocks
2024-07-12 03:16:42 -07:00
bitops.h
Merge tag 'riscv-for-linus-6.15-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
2025-04-04 09:49:17 -07:00
bug.h
bug: Use normal relative pointers in 'struct bug_entry'
2022-05-19 23:46:10 +02:00
bugs.h
riscv: Add ghostwrite vulnerability
2025-01-18 12:33:39 -08:00
cache.h
riscv: mm: still create swiotlb buffer for kmalloc() bouncing if required
2024-04-30 10:35:45 -07:00
cacheflush.h
riscv: Replace function-like macro by static inline function
2025-04-24 13:20:01 -07:00
cacheinfo.h
riscv: Add cache information in AUX vector
2020-09-15 18:46:08 -07:00
cfi.h
bpf, riscv64/cfi: Support kCFI + BPF on riscv64
2024-03-06 15:18:16 -08:00
checksum.h
RISC-V: separate Zbb optimisations requiring and not requiring toolchain support
2025-03-18 08:53:02 +00:00
clint.h
RISC-V: Resurrect the MMIO timer implementation for M-mode systems
2020-09-19 13:21:11 -07:00
clocksource.h
riscv: use vDSO common flow to reduce the latency of the time-related functions
2020-06-10 19:47:16 -07:00
cmpxchg.h
riscv: Implement smp_cond_load8/16() with Zawrs
2025-03-18 09:12:45 +00:00
compat.h
RISC-V: Remove unnecessary include from compat.h
2024-11-26 11:48:53 -08:00
cpu_ops_sbi.h
riscv: ensure cpu_ops_sbi is declared
2022-08-11 13:46:51 -07:00
cpu_ops.h
riscv: Use the same CPU operations for all CPUs
2024-01-04 15:03:07 -08:00
cpu.h
RISC-V: Add support to build the ACPI core
2023-06-01 08:45:01 -07:00
cpufeature-macros.h
riscv: Move cpufeature.h macros into their own header
2024-11-11 07:33:08 -08:00
cpufeature.h
Merge patch series "Add some validation for vector, vector crypto and fp stuff"
2025-04-01 07:06:41 +00:00
cpuidle.h
RISC-V: Enable CPU_IDLE drivers
2022-03-10 09:29:21 -08:00
crash_reserve.h
kexec: split crashkernel reservation code out from crash_core.c
2024-02-23 17:48:21 -08:00
csr.h
Merge patch series "riscv: Add support for xtheadvector"
2025-01-18 12:33:43 -08:00
current.h
riscv: Rename "sp_in_global" to "current_stack_pointer"
2022-03-30 15:15:27 -07:00
delay.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286
2019-06-05 17:36:37 +02:00
dma-noncoherent.h
riscv: mm: dma-noncoherent: nonstandard cache operations support
2023-09-01 09:08:57 -07:00
dmi.h
riscv: dmi: Add SMBIOS/DMI support
2024-06-26 08:02:33 -07:00
efi.h
Merge patch series "riscv: Introduce KASLR"
2023-09-08 11:25:13 -07:00
elf.h
riscv: Introduce set_compat_task() in asm/compat.h
2024-03-19 16:39:40 -07:00
entry-common.h
riscv: Fix default misaligned access trap
2024-11-12 14:45:26 -08:00
errata_list.h
riscv: Add ghostwrite vulnerability
2025-01-18 12:33:39 -08:00
exec.h
riscv: Randomize lower bits of stack address
2024-09-17 08:05:10 -07:00
extable.h
riscv: mm: stub extable related functions/macros for !MMU
2023-06-14 07:17:45 -07:00
fence.h
riscv: Add license to fence.h
2024-09-03 07:18:33 -07:00
fixmap.h
riscv: Move early dtb mapping into the fixmap region
2023-04-13 18:14:26 -07:00
fpu.h
riscv: add support for kernel-mode FPU
2024-05-19 14:36:19 -07:00
ftrace.h
Merge patch series "riscv: Add runtime constant support"
2025-03-20 09:15:04 +00:00
futex.h
riscv/futex: sign extend compare value in atomic cmpxchg
2025-02-14 13:06:31 -08:00
gdb_xml.h
riscv: Avoid kgdb.h including gdb_xml.h to solve unused-const-variable warning
2020-07-09 20:12:28 -07:00
gpr-num.h
riscv: Add X register names to gpr-nums
2022-10-02 10:17:58 +05:30
hugetlb.h
mm: hugetlb: Add huge page size param to huge_ptep_get_and_clear()
2025-02-27 17:40:57 +00:00
hwcap.h
riscv: add parsing for Zaamo and Zalrsc extensions
2025-03-19 12:03:45 +00:00
hwprobe.h
RISC-V: hwprobe: Expose Zicbom extension and its block size
2025-03-18 12:43:56 +00:00
image.h
RISC-V: Typo fixes in image header and documentation.
2019-12-19 09:32:45 -07:00
insn-def.h
riscv: Move nop definition to insn-def.h
2025-03-20 09:14:42 +00:00
insn.h
RISC-V: fix vector insn load/store width mask
2024-06-25 08:47:10 -07:00
io.h
Merge tag 'mm-stable-2025-03-30-16-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-04-01 09:29:18 -07:00
irq_stack.h
riscv: Deduplicate IRQ stack switching
2023-10-27 14:43:06 -07:00
irq_work.h
arch: consolidate arch_irq_work_raise prototypes
2023-11-23 11:32:29 +01:00
irq.h
Merge tag 'riscv-for-linus-6.12-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
2024-09-24 10:59:17 -07:00
irqflags.h
riscv: Remove unnecessary irqflags processor.h include
2024-04-16 18:50:52 -07:00
jump_label.h
jump_label: adjust inline asm to be consistent
2024-11-04 16:21:45 -05:00
kasan.h
riscv: mm: Pre-allocate vmemmap/direct map/kasan PGD entries
2024-06-26 08:42:39 -07:00
Kbuild
fprobe: Add fprobe_header encoding feature
2024-12-26 10:50:05 -05:00
kdebug.h
riscv: Add KGDB support
2020-05-18 11:38:10 -07:00
kexec.h
RISC-V: kexec: Fix memory leak of fdt buffer
2022-12-05 10:59:51 -08:00
kfence.h
riscv: Fix IPIs usage in kfence_protect_page()
2024-12-11 11:44:03 -08:00
kgdb.h
riscv: KGDB: Do not inline arch_kgdb_breakpoint()
2025-04-16 07:29:33 -07:00
kprobes.h
riscv: Only consider swbp/ss handlers for correct privileged mode
2023-09-20 06:45:27 -07:00
kvm_aia.h
RISC-V: KVM: Expose IMSIC registers as attributes of AIA irqchip
2023-06-19 22:27:58 +05:30
kvm_host.h
KVM: Drop kvm_arch_sync_events() now that all implementations are nops
2025-02-26 13:17:23 -05:00
kvm_nacl.h
RISC-V: KVM: Use SBI sync SRET call when available
2024-10-28 16:44:03 +05:30
kvm_types.h
KVM: RISC-V: Use common KVM implementation of MMU memory caches
2022-01-06 14:38:50 +05:30
kvm_vcpu_fp.h
RISC-V: KVM: Improve ISA extension by using a bitmap
2022-07-29 17:14:11 +05:30
kvm_vcpu_insn.h
RISC-V: KVM: Add extensible CSR emulation framework
2022-07-29 17:14:53 +05:30
kvm_vcpu_pmu.h
RISC-V: KVM: Fix to allow hpmcounter31 from the guest
2024-08-19 08:58:21 +05:30
kvm_vcpu_sbi.h
RISC-V: KVM: Add SBI system suspend support
2024-12-30 14:01:01 +05:30
kvm_vcpu_timer.h
RISC-V: KVM: Fix kvm_riscv_vcpu_timer_pending() for Sstc
2022-10-21 11:52:45 +05:30
kvm_vcpu_vector.h
RISC-V: KVM: Improve vector save/restore functions
2023-08-08 17:26:05 +05:30
linkage.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286
2019-06-05 17:36:37 +02:00
membarrier.h
membarrier: riscv: Provide core serializing command
2024-02-15 08:04:14 -08:00
mmio.h
riscv/barrier: Consolidate fence definitions
2024-03-19 18:52:24 -07:00
mmiowb.h
riscv/barrier: Consolidate fence definitions
2024-03-19 18:52:24 -07:00
mmu_context.h
riscv: Add support for the tagged address ABI
2024-10-24 14:12:56 -07:00
mmu.h
riscv: Add support for the tagged address ABI
2024-10-24 14:12:56 -07:00
module.h
riscv: module: move find_section to module.h
2023-01-31 23:29:39 -08:00
module.lds.h
riscv module: remove (NOLOAD)
2022-03-29 14:31:07 -07:00
numa.h
riscv: Add numa support for riscv64 platform
2021-01-14 15:08:58 -08:00
page.h
riscv: Remove CONFIG_PAGE_OFFSET
2025-03-26 15:56:46 -07:00
paravirt_api_clock.h
RISC-V: paravirt: Add skeleton for pv-time support
2023-12-30 11:25:03 +05:30
paravirt.h
RISC-V: paravirt: Add skeleton for pv-time support
2023-12-30 11:25:03 +05:30
pci.h
Merge tag 'riscv-for-linus-5.20-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
2022-08-06 15:04:48 -07:00
perf_event.h
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2024-11-23 16:00:50 -08:00
pgalloc.h
riscv: pgtable: unconditionally use tlb_remove_ptdesc()
2025-04-01 15:17:14 -07:00
pgtable-32.h
RISC-V: Provide pgtable_l5_enabled on rv32
2023-10-31 19:15:50 -07:00
pgtable-64.h
riscv: mm: Add support for ZONE_DEVICE
2024-06-26 08:42:46 -07:00
pgtable-bits.h
riscv: mm: Add support for ZONE_DEVICE
2024-06-26 08:42:46 -07:00
pgtable.h
Merge patch series "riscv: Relocatable NOMMU kernels"
2025-03-26 15:56:49 -07:00
probes.h
riscv: Add kprobes supported
2021-01-14 15:09:06 -08:00
processor.h
riscv: Add support for userspace pointer masking
2024-10-24 14:12:55 -07:00
ptrace.h
riscv: tracing: Fix __write_overflow_field in ftrace_partial_regs()
2025-03-18 13:06:05 +00:00
runtime-const.h
riscv: Add norvc after .option arch in runtime const
2025-04-01 07:09:21 +00:00
sbi.h
drivers/perf: riscv: Fix Platform firmware event data
2025-01-09 09:37:08 -08:00
scs.h
riscv: Use separate IRQ shadow call stacks
2023-10-27 14:43:09 -07:00
seccomp.h
riscv: Enable seccomp architecture tracking
2020-11-20 11:16:35 -08:00
sections.h
riscv: Check if the code to patch lies in the exit section
2024-01-09 10:58:59 -08:00
semihost.h
riscv: Implement semihost.h for earlycon semihost driver
2023-01-19 14:58:19 +01:00
set_memory.h
arch: introduce set_direct_map_valid_noflush()
2024-11-07 14:25:15 -08:00
signal32.h
riscv: compat: signal: Add rt_frame implementation
2022-05-17 16:37:21 -07:00
simd.h
riscv: vector: Fix a typo of preempt_v
2024-03-15 10:17:38 -07:00
smp.h
riscv: Use IPIs for remote cache/TLB flushes by default
2024-04-29 10:49:26 -07:00
soc.h
riscv: Fix builtin DTB handling
2021-01-07 19:00:50 -08:00
sparsemem.h
RISC-V: Don't have MAX_PHYSMEM_BITS exceed phys_addr_t
2024-09-20 01:32:39 -07:00
spinlock.h
riscv: qspinlock: Fixup _Q_PENDING_LOOPS definition
2025-01-08 10:46:01 -08:00
stackprotector.h
stackprotector: actually use get_random_canary()
2022-11-18 02:18:10 +01:00
stacktrace.h
riscv: declare overflow_stack as exported from traps.c
2024-02-07 09:55:27 -08:00
string.h
riscv: Omit optimized string routines when using KASAN
2024-09-19 01:10:00 -07:00
suspend.h
riscv: Add stimecmp save and restore
2025-03-18 12:59:03 +00:00
switch_to.h
riscv: vector: Support xtheadvector save/restore
2025-01-18 12:33:33 -08:00
sync_core.h
membarrier: riscv: Provide core serializing command
2024-02-15 08:04:14 -08:00
syscall_table.h
riscv: convert to generic syscall table
2024-07-10 14:23:38 +02:00
syscall_wrapper.h
riscv: Mark __se_sys_* functions __used
2024-03-26 14:11:03 -07:00
syscall.h
riscv: Avoid fortify warning in syscall_get_arguments()
2025-04-16 11:09:38 +00:00
text-patching.h
asm-generic: introduce text-patching.h
2024-11-07 14:25:15 -08:00
thread_info.h
riscv: add PREEMPT_LAZY support
2024-11-05 12:55:39 +01:00
timex.h
init: consolidate prototypes in linux/init.h
2023-06-09 17:44:16 -07:00
tlb.h
mm: pgtable: introduce generic __tlb_remove_table()
2025-01-25 20:22:23 -08:00
tlbbatch.h
riscv: Add support for BATCHED_UNMAP_TLB_FLUSH
2024-01-11 08:01:53 -08:00
tlbflush.h
mm: support tlbbatch flush for a range of PTEs
2025-03-16 22:06:16 -07:00
topology.h
arch, mm: move definition of node_data to generic code
2024-09-03 21:15:28 -07:00
trace.h
riscv: Add tracepoints for SBI calls and returns
2024-07-10 13:23:09 -07:00
uaccess.h
riscv: Add support for the tagged address ABI
2024-10-24 14:12:56 -07:00
unistd.h
riscv: convert to generic syscall table
2024-07-10 14:23:38 +02:00
uprobes.h
asm-generic: introduce text-patching.h
2024-11-07 14:25:15 -08:00
vdso.h
riscv: vdso: Switch to generic storage implementation
2025-02-21 09:54:02 +01:00
vector.h
riscv: vector: Support xtheadvector save/restore
2025-01-18 12:33:33 -08:00
vendor_extensions.h
riscv: cpufeature: Extract common elements from extension checking
2024-07-22 15:36:57 -07:00
vendorid_list.h
riscv: sbi: vendorid_list: Add Microchip Technology to the vendor list
2025-01-20 10:25:05 -06:00
vermagic.h
arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h>
2020-04-23 10:50:26 +09:00
vmalloc.h
riscv: Add license to vmalloc.h
2024-09-03 07:18:34 -07:00
word-at-a-time.h
kernel.h: removed REPEAT_BYTE from kernel.h
2024-02-01 09:47:59 -08:00
xip_fixup.h
riscv: drop the use of XIP_OFFSET in XIP_FIXUP_FLASH_OFFSET
2024-09-12 07:22:59 -07:00
xor.h
riscv: Add vector extension XOR implementation
2024-01-16 07:13:55 -08:00