diff options
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/fpu/api.h | 1 | ||||
| -rw-r--r-- | arch/s390/include/asm/fpu/internal.h | 10 | ||||
| -rw-r--r-- | arch/s390/include/asm/setup.h | 2 |
3 files changed, 9 insertions, 4 deletions
diff --git a/arch/s390/include/asm/fpu/api.h b/arch/s390/include/asm/fpu/api.h index dc34de234ed7..b6deca63b4c0 100644 --- a/arch/s390/include/asm/fpu/api.h +++ b/arch/s390/include/asm/fpu/api.h @@ -46,6 +46,7 @@ #include <linux/preempt.h> #include <asm/asm-extable.h> +#include <asm/fpu/internal.h> void save_fpu_regs(void); void load_fpu_regs(void); diff --git a/arch/s390/include/asm/fpu/internal.h b/arch/s390/include/asm/fpu/internal.h index 8634581b9011..d511c4cf5afb 100644 --- a/arch/s390/include/asm/fpu/internal.h +++ b/arch/s390/include/asm/fpu/internal.h @@ -10,8 +10,14 @@ #define _ASM_S390_FPU_INTERNAL_H #include <linux/string.h> +#include <asm/facility.h> #include <asm/fpu/types.h> +static inline bool cpu_has_vx(void) +{ + return likely(test_facility(129)); +} + static inline void save_vx_regs(__vector128 *vxrs) { asm volatile( @@ -41,7 +47,7 @@ static inline void fpregs_store(_s390_fp_regs *fpregs, struct fpu *fpu) { fpregs->pad = 0; fpregs->fpc = fpu->fpc; - if (MACHINE_HAS_VX) + if (cpu_has_vx()) convert_vx_to_fp((freg_t *)&fpregs->fprs, fpu->vxrs); else memcpy((freg_t *)&fpregs->fprs, fpu->fprs, @@ -51,7 +57,7 @@ static inline void fpregs_store(_s390_fp_regs *fpregs, struct fpu *fpu) static inline void fpregs_load(_s390_fp_regs *fpregs, struct fpu *fpu) { fpu->fpc = fpregs->fpc; - if (MACHINE_HAS_VX) + if (cpu_has_vx()) convert_fp_to_vx(fpu->vxrs, (freg_t *)&fpregs->fprs); else memcpy(fpu->fprs, (freg_t *)&fpregs->fprs, diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h index df316436d2e1..03bcaa8effb2 100644 --- a/arch/s390/include/asm/setup.h +++ b/arch/s390/include/asm/setup.h @@ -28,7 +28,6 @@ #define MACHINE_FLAG_TOPOLOGY BIT(10) #define MACHINE_FLAG_TE BIT(11) #define MACHINE_FLAG_TLB_LC BIT(12) -#define MACHINE_FLAG_VX BIT(13) #define MACHINE_FLAG_TLB_GUEST BIT(14) #define MACHINE_FLAG_NX BIT(15) #define MACHINE_FLAG_GS BIT(16) @@ -90,7 +89,6 @@ extern unsigned long mio_wb_bit_mask; #define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY) #define MACHINE_HAS_TE (S390_lowcore.machine_flags & MACHINE_FLAG_TE) #define MACHINE_HAS_TLB_LC (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_LC) -#define MACHINE_HAS_VX (S390_lowcore.machine_flags & MACHINE_FLAG_VX) #define MACHINE_HAS_TLB_GUEST (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_GUEST) #define MACHINE_HAS_NX (S390_lowcore.machine_flags & MACHINE_FLAG_NX) #define MACHINE_HAS_GS (S390_lowcore.machine_flags & MACHINE_FLAG_GS) |