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ARM: Align hwcap names and definitions with kernel, mark VFP and NEON as HWCAP_IMPORTANT. 

- Align hwcap names with kernel (arch/arm/kernel/setup.c)
- Align HWCAP_ARM_* definitions with kernel
- Make VFP and NEON as HWCAP_IMPORTANT, this can help in scenarios
where VFP/NEON HW optimizations can be utilized.
This commit is contained in:
Alexander Kanevskiy 2010-08-13 19:43:35 +00:00 committed by Joseph Myers
parent 32b9acf3d9
commit fd5fe45924
4 changed files with 21 additions and 5 deletions
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11
ChangeLog.arm
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@ -1,3 +1,14 @@
2010-08-13 Alexander Kanevskiy <kad@kad.name>
* sysdeps/unix/sysv/linux/arm/dl-procinfo.c (_dl_arm_cap_flags):
Change "fast-mult" to "fastmult". Add new HWCAP names.
* sysdeps/unix/sysv/linux/arm/dl-procinfo.h (_DL_HWCAP_COUNT):
Change to 15.
(HWCAP_IMPORTANT): Change to (HWCAP_ARM_VFP | HWCAP_ARM_NEON).
* sysdeps/unix/sysv/linux/arm/sysdep.h (HWCAP_ARM_CRUNCH,
HWCAP_ARM_THUMBEE, HWCAP_ARM_NEON, HWCAP_ARM_VFPv3,
HWCAP_ARM_VFPv3D16): Define.
2010-08-12 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/arm/syscalls.list: Add entry for

6
sysdeps/unix/sysv/linux/arm/dl-procinfo.c
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@ -47,12 +47,12 @@
#if !defined PROCINFO_DECL && defined SHARED
._dl_arm_cap_flags
#else
PROCINFO_CLASS const char _dl_arm_cap_flags[10][10]
PROCINFO_CLASS const char _dl_arm_cap_flags[15][10]
#endif
#ifndef PROCINFO_DECL
= {
"swp", "half", "thumb", "26bit", "fast-mult", "fpa", "vfp", "edsp",
"java", "iwmmxt",
"swp", "half", "thumb", "26bit", "fastmult", "fpa", "vfp", "edsp",
"java", "iwmmxt", "crunch", "thumbee", "neon", "vfpv3", "vfpv3d16",
}
#endif
#if !defined SHARED || defined PROCINFO_DECL

4
sysdeps/unix/sysv/linux/arm/dl-procinfo.h
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@ -24,7 +24,7 @@
#include <ldsodefs.h>
#include <sysdep.h>
#define _DL_HWCAP_COUNT 10
#define _DL_HWCAP_COUNT 15
/* The kernel provides platform data but it is not interesting. */
#define _DL_HWCAP_PLATFORM 0
@ -54,7 +54,7 @@ _dl_hwcap_string (int idx)
return GLRO(dl_arm_cap_flags)[idx];
};
#define HWCAP_IMPORTANT (HWCAP_ARM_HALF | HWCAP_ARM_FAST_MULT)
#define HWCAP_IMPORTANT (HWCAP_ARM_VFP | HWCAP_ARM_NEON)
static inline int
__attribute__ ((unused))

5
sysdeps/unix/sysv/linux/arm/sysdep.h
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@ -55,6 +55,11 @@
#define HWCAP_ARM_EDSP 128
#define HWCAP_ARM_JAVA 256
#define HWCAP_ARM_IWMMXT 512
#define HWCAP_ARM_CRUNCH 1024
#define HWCAP_ARM_THUMBEE 2048
#define HWCAP_ARM_NEON 4096
#define HWCAP_ARM_VFPv3 8192
#define HWCAP_ARM_VFPv3D16 16384
#ifdef __ASSEMBLER__