projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| f159f4ed TL |
1 | #ifndef __ASMARM_TLS_H |
| 2 | #define __ASMARM_TLS_H | |
| 3 | ||
| 4 | #ifdef __ASSEMBLY__ | |
| 5 | .macro set_tls_none, tp, tmp1, tmp2 | |
| 6 | .endm | |
| 7 | ||
| 8 | .macro set_tls_v6k, tp, tmp1, tmp2 | |
| 9 | mcr p15, 0, \tp, c13, c0, 3 @ set TLS register | |
| 10 | .endm | |
| 11 | ||
| 12 | .macro set_tls_v6, tp, tmp1, tmp2 | |
| 13 | ldr \tmp1, =elf_hwcap | |
| 14 | ldr \tmp1, [\tmp1, #0] | |
| 15 | mov \tmp2, #0xffff0fff | |
| 16 | tst \tmp1, #HWCAP_TLS @ hardware TLS available? | |
| 17 | mcrne p15, 0, \tp, c13, c0, 3 @ yes, set TLS register | |
| 18 | streq \tp, [\tmp2, #-15] @ set TLS value at 0xffff0ff0 | |
| 19 | .endm | |
| 20 | ||
| 21 | .macro set_tls_software, tp, tmp1, tmp2 | |
| 22 | mov \tmp1, #0xffff0fff | |
| 23 | str \tp, [\tmp1, #-15] @ set TLS value at 0xffff0ff0 | |
| 24 | .endm | |
| 25 | #endif | |
| 26 | ||
| 27 | #ifdef CONFIG_TLS_REG_EMUL | |
| 28 | #define tls_emu 1 | |
| 29 | #define has_tls_reg 1 | |
| 30 | #define set_tls set_tls_none | |
| 31 | #elif __LINUX_ARM_ARCH__ >= 7 || \ | |
| 32 | (__LINUX_ARM_ARCH__ == 6 && defined(CONFIG_CPU_32v6K)) | |
| 33 | #define tls_emu 0 | |
| 34 | #define has_tls_reg 1 | |
| 35 | #define set_tls set_tls_v6k | |
| 36 | #elif __LINUX_ARM_ARCH__ == 6 | |
| 37 | #define tls_emu 0 | |
| 38 | #define has_tls_reg (elf_hwcap & HWCAP_TLS) | |
| 39 | #define set_tls set_tls_v6 | |
| 40 | #else | |
| 41 | #define tls_emu 0 | |
| 42 | #define has_tls_reg 0 | |
| 43 | #define set_tls set_tls_software | |
| 44 | #endif | |
| 45 | ||
| 46 | #endif /* __ASMARM_TLS_H */ |