linux/arch/mips/include/uapi/asm/hwcap.h

#ifndef _UAPI_ASM_HWCAP_H
#define _UAPI_ASM_HWCAP_H

/* HWCAP flags */
#define HWCAP_MIPS_R6		(1 << 0)
#define HWCAP_MIPS_MSA		(1 << 1)

#endif /* _UAPI_ASM_HWCAP_H */
MIPS: AT_HWCAP aux vector infrastructure In order for userland to determine whether various features are safe to use, it will need to know both that the hardware supports those features and that the kernel is recent enough & configured appropriately to support them. For example under the O32 modeless FP proposal the dynamic linker & ifunc resolvers will need this information. The kernel is the only thing in a position to know availability accurately, so the kernel needs to provide the information to userland. This patch introduces the infrastructure to provide the AT_HWCAP aux vector to userland in order to provide that information. It also defines the 2 currently specified flags, which indicate MIPSr6 & MSA support. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Guenter Roeck <linux@roeck-us.net> Cc: Matthew Fortune <matthew.fortune@imgtec.com> Cc: Kees Cook <keescook@chromium.org> Cc: Huacai Chen <chenhc@lemote.com> Cc: Maciej W. Rozycki <macro@linux-mips.org> Cc: Alex Smith <alex@alex-smith.me.uk> Cc: linux-kernel@vger.kernel.org Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: Ingo Molnar <mingo@kernel.org> Patchwork: https://patchwork.linux-mips.org/patch/10797/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 2015-07-27 12:58:23 -07:00			`#ifndef _UAPI_ASM_HWCAP_H`
			`#define _UAPI_ASM_HWCAP_H`

			`/* HWCAP flags */`
			`#define HWCAP_MIPS_R6 (1 << 0)`
			`#define HWCAP_MIPS_MSA (1 << 1)`

			`#endif /* _UAPI_ASM_HWCAP_H */`