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authorMichael Neuling <mikey@neuling.org>2013-04-17 17:33:11 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-04-26 16:08:16 +1000
commit2171364d1a92d0a101b455315de7a92efb566008 (patch)
treef9950115c41fc580b106d6c836ca567bb9af9b35 /arch/powerpc/include/asm
parent6263fb3bd79834411e41acb8b02153e034ab810d (diff)
powerpc: Add HWCAP2 aux entry
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>
Diffstat (limited to 'arch/powerpc/include/asm')
-rw-r--r--arch/powerpc/include/asm/cputable.h1
-rw-r--r--arch/powerpc/include/asm/elf.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index fb3245e928e..ccadad6db4e 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -52,6 +52,7 @@ struct cpu_spec {
char *cpu_name;
unsigned long cpu_features; /* Kernel features */
unsigned int cpu_user_features; /* Userland features */
+ unsigned int cpu_user_features2; /* Userland features v2 */
unsigned int mmu_features; /* MMU features */
/* cache line sizes */
diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
index ac9790fc383..cc0655a702a 100644
--- a/arch/powerpc/include/asm/elf.h
+++ b/arch/powerpc/include/asm/elf.h
@@ -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