arm64: docs: describe ELF hwcaps
authorMark Rutland <mark.rutland@arm.com>
Wed, 11 Oct 2017 13:01:03 +0000 (14:01 +0100)
committerWill Deacon <will.deacon@arm.com>
Wed, 11 Oct 2017 14:28:40 +0000 (15:28 +0100)
commit611a7bc74ed2dcbab6693c20bb534cfcf15f9d1d
treefb11bfeac7b2dc087ded52f272fdb501393227e3
parentf5e035f8694c3bdddc66ea46ecda965ee6853718
arm64: docs: describe ELF hwcaps

We don't document our ELF hwcaps, leaving developers to interpret them
according to hearsay, guesswork, or (in exceptional cases) inspection of
the current kernel code.

This is less than optimal, and it would be far better if we had some
definitive description of each of the ELF hwcaps that developers could
refer to.

This patch adds a document describing the (native) arm64 ELF hwcaps.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
[ Updated new hwcap entries in the document ]
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Documentation/arm64/elf_hwcaps.txt [new file with mode: 0644]