riscv: Add support for Zicbop

Zicbop introduces cache blocks prefetching instructions, add the necessary support for the kernel to use it in the coming commits. Co-developed-by: Guo Ren <guoren@kernel.org> Signed-off-by: Guo Ren <guoren@kernel.org> Tested-by: Andrea Parri <parri.andrea@gmail.com> Link: https://lore.kernel.org/r/20250421142441.395849-3-alexghiti@rivosinc.com Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
2026-11-02 19:05:42 +00:00 · 2025-04-21 16:24:39 +02:00 · 2025-04-21 16:24:39 +02:00 · 8d496b5a98
commit 8d496b5a98
parent f0f4e64b9e
8 changed files with 55 additions and 9 deletions
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
--- a/arch/riscv/include/asm/barrier.h
+++ b/arch/riscv/include/asm/barrier.h
--- a/arch/riscv/include/asm/cacheflush.h
+++ b/arch/riscv/include/asm/cacheflush.h
--- a/arch/riscv/include/asm/hwcap.h
+++ b/arch/riscv/include/asm/hwcap.h
--- a/arch/riscv/include/asm/insn-def.h
+++ b/arch/riscv/include/asm/insn-def.h
--- a/arch/riscv/include/asm/processor.h
+++ b/arch/riscv/include/asm/processor.h
--- a/arch/riscv/kernel/cpufeature.c
+++ b/arch/riscv/kernel/cpufeature.c
--- a/arch/riscv/mm/cacheflush.c
+++ b/arch/riscv/mm/cacheflush.c