diff options
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/macro.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/include/asm/macro.h b/arch/arm/include/asm/macro.h index 1c8c425..5f7c7e0 100644 --- a/arch/arm/include/asm/macro.h +++ b/arch/arm/include/asm/macro.h @@ -74,6 +74,28 @@ lr .req x30 .endm /* + * Branch if current processor is a Cortex-A57 core. + */ +.macro branch_if_a57_core, xreg, a57_label + mrs \xreg, midr_el1 + lsr \xreg, \xreg, #4 + and \xreg, \xreg, #0x00000FFF + cmp \xreg, #0xD07 /* Cortex-A57 MPCore processor. */ + b.eq \a57_label +.endm + +/* + * Branch if current processor is a Cortex-A53 core. + */ +.macro branch_if_a53_core, xreg, a53_label + mrs \xreg, midr_el1 + lsr \xreg, \xreg, #4 + and \xreg, \xreg, #0x00000FFF + cmp \xreg, #0xD03 /* Cortex-A53 MPCore processor. */ + b.eq \a53_label +.endm + +/* * Branch if current processor is a slave, * choose processor with all zero affinity value as the master. */ |