From ecd2ada8a5e0b464dab54f71d4ba7bbf5708711f Mon Sep 17 00:00:00 2001 From: Greentime Hu Date: Mon, 15 Jan 2024 05:59:20 +0000 Subject: riscv: Add support for kernel mode vector MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add kernel_vector_begin() and kernel_vector_end() function declarations and corresponding definitions in kernel_mode_vector.c These are needed to wrap uses of vector in kernel mode. Co-developed-by: Vincent Chen Signed-off-by: Vincent Chen Signed-off-by: Greentime Hu Signed-off-by: Andy Chiu Reviewed-by: Eric Biggers Tested-by: Björn Töpel Tested-by: Lad Prabhakar Link: https://lore.kernel.org/r/20240115055929.4736-2-andy.chiu@sifive.com Signed-off-by: Palmer Dabbelt --- arch/riscv/include/asm/vector.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'arch/riscv/include/asm/vector.h') diff --git a/arch/riscv/include/asm/vector.h b/arch/riscv/include/asm/vector.h index 87aaef656257..71af3404fda1 100644 --- a/arch/riscv/include/asm/vector.h +++ b/arch/riscv/include/asm/vector.h @@ -22,6 +22,15 @@ extern unsigned long riscv_v_vsize; int riscv_v_setup_vsize(void); bool riscv_v_first_use_handler(struct pt_regs *regs); +void kernel_vector_begin(void); +void kernel_vector_end(void); +void get_cpu_vector_context(void); +void put_cpu_vector_context(void); + +static inline u32 riscv_v_flags(void) +{ + return current->thread.riscv_v_flags; +} static __always_inline bool has_vector(void) { -- cgit v1.2.3