diff options
Diffstat (limited to 'arch/arm/include/asm/armv8/cpu.h')
| -rw-r--r-- | arch/arm/include/asm/armv8/cpu.h | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/arch/arm/include/asm/armv8/cpu.h b/arch/arm/include/asm/armv8/cpu.h index 40d54dc85ab..4dbb589aab8 100644 --- a/arch/arm/include/asm/armv8/cpu.h +++ b/arch/arm/include/asm/armv8/cpu.h @@ -3,11 +3,13 @@ * Copyright 2018 NXP */ -#define MIDR_PARTNUM_CORTEX_A35 0xD04 -#define MIDR_PARTNUM_CORTEX_A53 0xD03 -#define MIDR_PARTNUM_CORTEX_A72 0xD08 -#define MIDR_PARTNUM_SHIFT 0x4 -#define MIDR_PARTNUM_MASK (0xFFF << 0x4) +#define MIDR_PARTNUM_CORTEX_A35 0xD04 +#define MIDR_PARTNUM_CORTEX_A53 0xD03 +#define MIDR_PARTNUM_CORTEX_A57 0xD07 +#define MIDR_PARTNUM_CORTEX_A72 0xD08 +#define MIDR_PARTNUM_CORTEX_A76 0xD0B +#define MIDR_PARTNUM_SHIFT 0x4 +#define MIDR_PARTNUM_MASK (0xFFF << MIDR_PARTNUM_SHIFT) static inline unsigned int read_midr(void) { @@ -18,9 +20,17 @@ static inline unsigned int read_midr(void) return val; } -#define is_cortex_a35() (((read_midr() & MIDR_PARTNUM_MASK) >> \ - MIDR_PARTNUM_SHIFT) == MIDR_PARTNUM_CORTEX_A35) -#define is_cortex_a53() (((read_midr() & MIDR_PARTNUM_MASK) >> \ - MIDR_PARTNUM_SHIFT) == MIDR_PARTNUM_CORTEX_A53) -#define is_cortex_a72() (((read_midr() & MIDR_PARTNUM_MASK) >>\ - MIDR_PARTNUM_SHIFT) == MIDR_PARTNUM_CORTEX_A72) +#define is_cortex_a(__n) \ + static inline int is_cortex_a##__n(void) \ + { \ + unsigned int midr = read_midr(); \ + midr &= MIDR_PARTNUM_MASK; \ + midr >>= MIDR_PARTNUM_SHIFT; \ + return midr == MIDR_PARTNUM_CORTEX_A##__n; \ + } + +is_cortex_a(35) +is_cortex_a(53) +is_cortex_a(57) +is_cortex_a(72) +is_cortex_a(76) |