#ifndef __ASMARM_TLS_H #define __ASMARM_TLS_H #ifdef __ASSEMBLY__ .macro set_tls_none, tp, tmp1, tmp2 .endm .macro set_tls_v6k, tp, tmp1, tmp2 mcr p15, 0, \tp, c13, c0, 3 @ set TLS register .endm .macro set_tls_v6, tp, tmp1, tmp2 ldr \tmp1, =elf_hwcap ldr \tmp1, [\tmp1, #0] mov \tmp2, #0xffff0fff tst \tmp1, #HWCAP_TLS @ hardware TLS available? mcrne p15, 0, \tp, c13, c0, 3 @ yes, set TLS register streq \tp, [\tmp2, #-15] @ set TLS value at 0xffff0ff0 .endm .macro set_tls_software, tp, tmp1, tmp2 mov \tmp1, #0xffff0fff str \tp, [\tmp1, #-15] @ set TLS value at 0xffff0ff0 .endm #endif #ifdef CONFIG_TLS_REG_EMUL #define tls_emu 1 #define has_tls_reg 1 #define set_tls set_tls_none #elif __LINUX_ARM_ARCH__ >= 7 || \ (__LINUX_ARM_ARCH__ == 6 && defined(CONFIG_CPU_32v6K)) #define tls_emu 0 #define has_tls_reg 1 #define set_tls set_tls_v6k #elif __LINUX_ARM_ARCH__ == 6 #define tls_emu 0 #define has_tls_reg (elf_hwcap & HWCAP_TLS) #define set_tls set_tls_v6 #else #define tls_emu 0 #define has_tls_reg 0 #define set_tls set_tls_software #endif #endif /* __ASMARM_TLS_H */