Pu Lehui dd642ccb45 riscv, bpf: Implement more atomic operations for RV64 ... This patch implement more BPF atomic operations for RV64. The newly added operations are shown below: atomic[64]_[fetch_]add atomic[64]_[fetch_]and atomic[64]_[fetch_]or atomic[64]_xchg atomic[64]_cmpxchg Since riscv specification does not provide AMO instruction for CAS operation, we use lr/sc instruction for cmpxchg operation, and AMO instructions for the rest ops. Tests "test_bpf.ko" and "test_progs -t atomic" have passed, as well as "test_verifier" with no new failure cases. Signed-off-by: Pu Lehui <pulehui@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Song Liu <songliubraving@fb.com> Acked-by: Björn Töpel <bjorn@kernel.org> Link: https://lore.kernel.org/bpf/20220410101246.232875-1-pulehui@huawei.com		2022-04-11 16:54:54 +02:00
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boot	RISC-V Patches for the 5.18 Merge Window, Part 2	2022-04-01 13:31:57 -07:00
configs	RISC-V: K210 defconfigs: Drop redundant MEMBARRIER=n	2022-03-31 17:19:27 -07:00
errata	riscv: errata: alternative: mark vendor_patch_func __initdata	2022-01-09 11:02:46 -08:00
include	RISC-V Patches for the 5.18 Merge Window, Part 2	2022-04-01 13:31:57 -07:00
kernel	RISC-V Patches for the 5.18 Merge Window, Part 2	2022-04-01 13:31:57 -07:00
kvm	RISC-V: KVM: Implement SBI HSM suspend call	2022-03-11 19:02:39 +05:30
lib	riscv: Fixed misaligned memory access. Fixed pointer comparison.	2022-03-10 10:24:04 -08:00
mm	RISC-V Patches for the 5.18 Merge Window, Part 1	2022-03-25 10:11:38 -07:00
net	riscv, bpf: Implement more atomic operations for RV64	2022-04-11 16:54:54 +02:00
Kbuild	kbuild: use more subdir- for visiting subdirectories while cleaning	2021-10-24 13:49:46 +09:00
Kconfig	RISC-V CPU Idle Support	2022-03-30 16:17:54 -07:00
Kconfig.debug	RISC-V: Remove EARLY_PRINTK support	2018-12-17 10:23:46 -08:00
Kconfig.erratas	riscv: alternative only works on !XIP_KERNEL	2022-03-10 10:05:19 -08:00
Kconfig.socs	RISC-V CPU Idle Support	2022-03-30 16:17:54 -07:00
Makefile	riscv: fix build with binutils 2.38	2022-02-10 09:17:01 -08:00