| commit | 40a1db2434a1b62332b1af25cfa14d7b8c0301fe | [log] [tgz] |
|---|---|---|
| author | Will Deacon <will.deacon@arm.com> | Mon Jan 26 18:46:19 2015 +0000 |
| committer | Will Deacon <will.deacon@arm.com> | Mon Jul 27 14:34:39 2015 +0100 |
| tree | b98eadfd8f2e2e98b162a7b0a52635ed9c6d7ee4 | |
| parent | c275f76bb4ce16fd0205da1e15f31b875013678e [diff] |
arm64: elf: advertise 8.1 atomic instructions as new hwcap The ARM v8.1 architecture introduces new atomic instructions to the A64 instruction set for things like cmpxchg, so advertise their availability to userspace using a hwcap. Reviewed-by: Steve Capper <steve.capper@arm.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>