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eina_cpu: Detect NEON if available 

We may have a few conditionals around that think this has actually been
set at some point, let's surprise them by actually doing that.
This commit is contained in:
Derek Foreman 2016-09-16 13:05:56 -05:00
parent 0f98e1c6d3
commit a453599d26
2 changed files with 22 additions and 1 deletions
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2
configure.ac
View File

@ -449,6 +449,8 @@ sys/types.h \
sys/param.h \
sys/mman.h \
netinet/in.h \
sys/auxv.h \
asm/hwcap.h \
])
EFL_CHECK_PATH_MAX

21
src/lib/eina/eina_cpu.c
View File

@ -53,6 +53,11 @@
#include "eina_cpu_private.h"
#if defined(HAVE_SYS_AUXV_H) && defined(HAVE_ASM_HWCAP_H) && defined(__arm__) && defined(__linux__)
# include <sys/auxv.h>
# include <asm/hwcap.h>
#endif
/*============================================================================*
* Local *
*============================================================================*/
@ -129,6 +134,19 @@ void _x86_simd(Eina_Cpu_Features *features)
}
#endif
#if defined(HAVE_SYS_AUXV_H) && defined(HAVE_ASM_HWCAP_H) && defined(__arm__) && defined(__linux__)
static void
_arm_cpu_features(Eina_Cpu_Features *features)
{
unsigned long aux;
aux = getauxval(AT_HWCAP);
if (aux & HWCAP_NEON)
*features |= EINA_CPU_NEON;
}
#endif
/*============================================================================*
* Global *
*============================================================================*/
@ -147,8 +165,9 @@ eina_cpu_init(void)
{
#if defined(__i386__) || defined(__x86_64__)
_x86_simd(&eina_cpu_features);
#elif defined(HAVE_SYS_AUXV_H) && defined(HAVE_ASM_HWCAP_H) && defined(__arm__) && defined(__linux__)
_arm_cpu_features(&eina_cpu_features);
#endif
// FIXME: Handle NEON and friends
// Figure out the page size for this system
_eina_page_size();