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powerpc: Add HWCAP2 aux entry

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We are currently out of free bits in AT_HWCAP. With POWER8, we have
several hardware features that we need to advertise.

Tested on POWER and x86.

Signed-off-by: Michael Neuling <michael@neuling.org>
Signed-off-by: Nishanth Aravamudan <nacc@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Michael Neuling
2013-04-17 17:33:11 +00:00
committed by Benjamin Herrenschmidt
parent 6263fb3bd7
commit 2171364d1a
5 changed files with 10 additions and 4 deletions
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1
arch/powerpc/include/asm/elf.h
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@@ -61,6 +61,7 @@ typedef elf_vrregset_t elf_fpxregset_t;
instruction set this cpu supports. This could be done in userspace,
but it's not easy, and we've already done it here. */
# define ELF_HWCAP (cur_cpu_spec->cpu_user_features)
# define ELF_HWCAP2 (cur_cpu_spec->cpu_user_features2)
/* This yields a string that ld.so will use to load implementation
specific libraries for optimization. This is more specific in