diff options
Diffstat (limited to 'arch/mips/include/asm/cpu-features.h')
| -rw-r--r-- | arch/mips/include/asm/cpu-features.h | 60 |
1 files changed, 35 insertions, 25 deletions
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h index 0edba3e75747..701e525641b8 100644 --- a/arch/mips/include/asm/cpu-features.h +++ b/arch/mips/include/asm/cpu-features.h @@ -15,6 +15,7 @@ #include <cpu-feature-overrides.h> #define __ase(ase) (cpu_data[0].ases & (ase)) +#define __isa(isa) (cpu_data[0].isa_level & (isa)) #define __opt(opt) (cpu_data[0].options & (opt)) /* @@ -53,6 +54,18 @@ #define __isa_lt_and_opt(isa, opt) ((MIPS_ISA_REV < (isa)) && __opt(opt)) /* + * Similarly allow for ISA level checks that take into account knowledge of the + * ISA targeted by the kernel build, provided by MIPS_ISA_REV. + */ +#define __isa_ge_and_flag(isa, flag) ((MIPS_ISA_REV >= (isa)) && __isa(flag)) +#define __isa_ge_or_flag(isa, flag) ((MIPS_ISA_REV >= (isa)) || __isa(flag)) +#define __isa_lt_and_flag(isa, flag) ((MIPS_ISA_REV < (isa)) && __isa(flag)) +#define __isa_range(ge, lt) \ + ((MIPS_ISA_REV >= (ge)) && (MIPS_ISA_REV < (lt))) +#define __isa_range_or_flag(ge, lt, flag) \ + (__isa_range(ge, lt) || ((MIPS_ISA_REV < (lt)) && __isa(flag))) + +/* * SMP assumption: Options of CPU 0 are a superset of all processors. * This is true for all known MIPS systems. */ @@ -115,10 +128,15 @@ #endif /* Don't override `cpu_has_fpu' to 1 or the "nofpu" option won't work. */ #ifndef cpu_has_fpu -#define cpu_has_fpu (current_cpu_data.options & MIPS_CPU_FPU) -#define raw_cpu_has_fpu (raw_current_cpu_data.options & MIPS_CPU_FPU) +# ifdef CONFIG_MIPS_FP_SUPPORT +# define cpu_has_fpu (current_cpu_data.options & MIPS_CPU_FPU) +# define raw_cpu_has_fpu (raw_current_cpu_data.options & MIPS_CPU_FPU) +# else +# define cpu_has_fpu 0 +# define raw_cpu_has_fpu 0 +# endif #else -#define raw_cpu_has_fpu cpu_has_fpu +# define raw_cpu_has_fpu cpu_has_fpu #endif #ifndef cpu_has_32fpr #define cpu_has_32fpr __isa_ge_or_opt(1, MIPS_CPU_32FPR) @@ -195,7 +213,9 @@ #endif #ifndef cpu_has_mmips -# ifdef CONFIG_SYS_SUPPORTS_MICROMIPS +# if defined(__mips_micromips) +# define cpu_has_mmips 1 +# elif defined(CONFIG_SYS_SUPPORTS_MICROMIPS) # define cpu_has_mmips __opt(MIPS_CPU_MICROMIPS) # else # define cpu_has_mmips 0 @@ -246,48 +266,38 @@ #endif #endif -/* __builtin_constant_p(cpu_has_mips_r) && cpu_has_mips_r */ -#if !((defined(cpu_has_mips32r1) && cpu_has_mips32r1) || \ - (defined(cpu_has_mips32r2) && cpu_has_mips32r2) || \ - (defined(cpu_has_mips32r6) && cpu_has_mips32r6) || \ - (defined(cpu_has_mips64r1) && cpu_has_mips64r1) || \ - (defined(cpu_has_mips64r2) && cpu_has_mips64r2) || \ - (defined(cpu_has_mips64r6) && cpu_has_mips64r6)) -#define CPU_NO_EFFICIENT_FFS 1 -#endif - #ifndef cpu_has_mips_1 -# define cpu_has_mips_1 (!cpu_has_mips_r6) +# define cpu_has_mips_1 (MIPS_ISA_REV < 6) #endif #ifndef cpu_has_mips_2 -# define cpu_has_mips_2 (cpu_data[0].isa_level & MIPS_CPU_ISA_II) +# define cpu_has_mips_2 __isa_lt_and_flag(6, MIPS_CPU_ISA_II) #endif #ifndef cpu_has_mips_3 -# define cpu_has_mips_3 (cpu_data[0].isa_level & MIPS_CPU_ISA_III) +# define cpu_has_mips_3 __isa_lt_and_flag(6, MIPS_CPU_ISA_III) #endif #ifndef cpu_has_mips_4 -# define cpu_has_mips_4 (cpu_data[0].isa_level & MIPS_CPU_ISA_IV) +# define cpu_has_mips_4 __isa_lt_and_flag(6, MIPS_CPU_ISA_IV) #endif #ifndef cpu_has_mips_5 -# define cpu_has_mips_5 (cpu_data[0].isa_level & MIPS_CPU_ISA_V) +# define cpu_has_mips_5 __isa_lt_and_flag(6, MIPS_CPU_ISA_V) #endif #ifndef cpu_has_mips32r1 -# define cpu_has_mips32r1 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R1) +# define cpu_has_mips32r1 __isa_range_or_flag(1, 6, MIPS_CPU_ISA_M32R1) #endif #ifndef cpu_has_mips32r2 -# define cpu_has_mips32r2 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R2) +# define cpu_has_mips32r2 __isa_range_or_flag(2, 6, MIPS_CPU_ISA_M32R2) #endif #ifndef cpu_has_mips32r6 -# define cpu_has_mips32r6 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R6) +# define cpu_has_mips32r6 __isa_ge_or_flag(6, MIPS_CPU_ISA_M32R6) #endif #ifndef cpu_has_mips64r1 -# define cpu_has_mips64r1 (cpu_data[0].isa_level & MIPS_CPU_ISA_M64R1) +# define cpu_has_mips64r1 __isa_range_or_flag(1, 6, MIPS_CPU_ISA_M64R1) #endif #ifndef cpu_has_mips64r2 -# define cpu_has_mips64r2 (cpu_data[0].isa_level & MIPS_CPU_ISA_M64R2) +# define cpu_has_mips64r2 __isa_range_or_flag(2, 6, MIPS_CPU_ISA_M64R2) #endif #ifndef cpu_has_mips64r6 -# define cpu_has_mips64r6 (cpu_data[0].isa_level & MIPS_CPU_ISA_M64R6) +# define cpu_has_mips64r6 __isa_ge_and_flag(6, MIPS_CPU_ISA_M64R6) #endif /* |