mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

riscv: cpu_relax: switch to riscv_has_extension_likely() 

Switch cpu_relax() from static branch to the new helper
riscv_has_extension_likely()

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230128172856.3814-12-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This commit is contained in:
Jisheng Zhang 2023-01-29 01:28:54 +08:00 committed by Palmer Dabbelt
parent cabfd146b3
commit 95bc69a47b
No known key found for this signature in database
GPG Key ID: 2E1319F35FBB1889
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/riscv/include/asm/vdso/processor.h
View File

@ -10,7 +10,7 @@
static inline void cpu_relax(void)
{
if (!static_branch_likely(&riscv_isa_ext_keys[RISCV_ISA_EXT_KEY_ZIHINTPAUSE])) {
if (!riscv_has_extension_likely(RISCV_ISA_EXT_ZIHINTPAUSE)) {
#ifdef __riscv_muldiv
int dummy;
/* In lieu of a halt instruction, induce a long-latency stall. */