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| author | Tony Lindgren <tony@atomide.com> | 2010-07-05 14:53:10 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-07-09 14:41:35 +0100 |
| commit | f159f4ed55bb0fa5470800641e03a13a7e0eae6e (patch) | |
| tree | c2ed54b103c2a1c58fa4b50740fec462ccfeec74 /arch/arm/include/asm/hwcap.h | |
| parent | c1b2d9704c77ddaec46d5d681e1360ac40268743 (diff) | |
| download | linux-f159f4ed55bb0fa5470800641e03a13a7e0eae6e.tar.gz linux-f159f4ed55bb0fa5470800641e03a13a7e0eae6e.tar.bz2 linux-f159f4ed55bb0fa5470800641e03a13a7e0eae6e.zip | |
ARM: 6207/1: Replace CONFIG_HAS_TLS_REG with HWCAP_TLS and check for it on V6
The TLS register is only available on ARM1136 r1p0 and later.
Set HWCAP_TLS flags if hardware TLS is available and test for
it if CONFIG_CPU_32v6K is not set for V6.
Note that we set the TLS instruction in __kuser_get_tls
dynamically as suggested by Jamie Lokier <jamie@shareable.org>.
Also the __switch_to code is optimized out in most cases as
suggested by Nicolas Pitre <nico@fluxnic.net>.
Reviewed-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include/asm/hwcap.h')
| -rw-r--r-- | arch/arm/include/asm/hwcap.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/include/asm/hwcap.h b/arch/arm/include/asm/hwcap.h index f7bd52b1c365..c1062c317103 100644 --- a/arch/arm/include/asm/hwcap.h +++ b/arch/arm/include/asm/hwcap.h @@ -19,6 +19,7 @@ #define HWCAP_NEON 4096 #define HWCAP_VFPv3 8192 #define HWCAP_VFPv3D16 16384 +#define HWCAP_TLS 32768 #if defined(__KERNEL__) && !defined(__ASSEMBLY__) /* |