diff options
Diffstat (limited to 'src/arch/arm64/include/armv8')
| -rw-r--r-- | src/arch/arm64/include/armv8/arch/lib_helpers.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/arch/arm64/include/armv8/arch/lib_helpers.h b/src/arch/arm64/include/armv8/arch/lib_helpers.h index ba41f45440..1e04d48cfa 100644 --- a/src/arch/arm64/include/armv8/arch/lib_helpers.h +++ b/src/arch/arm64/include/armv8/arch/lib_helpers.h @@ -126,6 +126,28 @@ #define SCTLR_LITTLE_END (0 << SCTLR_ENDIAN_SHIFT) #define SCTLR_BIG_END (1 << SCTLR_ENDIAN_SHIFT) +#define CPTR_EL3_TCPAC_SHIFT (31) +#define CPTR_EL3_TTA_SHIFT (20) +#define CPTR_EL3_TFP_SHIFT (10) +#define CPTR_EL3_TCPAC_DISABLE (0 << CPTR_EL3_TCPAC_SHIFT) +#define CPTR_EL3_TCPAC_ENABLE (1 << CPTR_EL3_TCPAC_SHIFT) +#define CPTR_EL3_TTA_DISABLE (0 << CPTR_EL3_TTA_SHIFT) +#define CPTR_EL3_TTA_ENABLE (1 << CPTR_EL3_TTA_SHIFT) +#define CPTR_EL3_TFP_DISABLE (0 << CPTR_EL3_TFP_SHIFT) +#define CPTR_EL3_TFP_ENABLE (1 << CPTR_EL3_TFP_SHIFT) + +#define CPACR_TTA_SHIFT (28) +#define CPACR_TTA_ENABLE (1 << CPACR_TTA_SHIFT) +#define CPACR_TTA_DISABLE (0 << CPACR_TTA_SHIFT) +#define CPACR_FPEN_SHIFT (20) +/* + * ARMv8-A spec: Values 0b00 and 0b10 both seem to enable traps from el0 and el1 + * for fp reg access. + */ +#define CPACR_TRAP_FP_EL0_EL1 (0 << CPACR_FPEN_SHIFT) +#define CPACR_TRAP_FP_EL0 (1 << CPACR_FPEN_SHIFT) +#define CPACR_TRAP_FP_DISABLE (3 << CPACR_FPEN_SHIFT) + #ifdef __ASSEMBLY__ /* Macro to switch to label based on current el */ |