linux/arch/riscv/include/uapi/asm/vendor/thead.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

#define		RISCV_HWPROBE_VENDOR_EXT_XTHEADVECTOR	(1 << 0)
riscv: hwprobe: Add thead vendor extension probing Add a new hwprobe key "RISCV_HWPROBE_KEY_VENDOR_EXT_THEAD_0" which allows userspace to probe for the new RISCV_ISA_VENDOR_EXT_XTHEADVECTOR vendor extension. This new key will allow userspace code to probe for which thead vendor extensions are supported. This API is modeled to be consistent with RISCV_HWPROBE_KEY_IMA_EXT_0. The bitmask returned will have each bit corresponding to a supported thead vendor extension of the cpumask set. Just like RISCV_HWPROBE_KEY_IMA_EXT_0, this allows a userspace program to determine all of the supported thead vendor extensions in one call. Signed-off-by: Charlie Jenkins <charlie@rivosinc.com> Reviewed-by: Evan Green <evan@rivosinc.com> Tested-by: Yangyu Chen <cyy@cyyself.name> Link: https://lore.kernel.org/r/20241113-xtheadvector-v11-10-236c22791ef9@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com> 2024-11-13 18:21:16 -08:00			`/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */`

			`#define RISCV_HWPROBE_VENDOR_EXT_XTHEADVECTOR (1 << 0)`