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Commit a7ddc5e8 authored by Paul Mackerras's avatar Paul Mackerras
Browse files

powerpc: Add user CPU features for POWER4, POWER5, POWER5+ and Cell. 



This is at the request of the glibc folks, who want to use these bits
to select libraries optimized for the microarchitecture and new
instructions in these processors.

Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent cbe62e2b

arch/powerpc/kernel/cputable.c

+11 −8
Original line number Diff line number Diff line
@@ -52,6 +52,9 @@ extern void __setup_cpu_ppc970(unsigned long offset, struct cpu_spec* spec); 
#define COMMON_USER		(PPC_FEATURE_32 | PPC_FEATURE_HAS_FPU | \

				 PPC_FEATURE_HAS_MMU)

#define COMMON_USER_PPC64	(COMMON_USER | PPC_FEATURE_64)

#define COMMON_USER_POWER4	(COMMON_USER_PPC64 | PPC_FEATURE_POWER4)

#define COMMON_USER_POWER5	(COMMON_USER_PPC64 | PPC_FEATURE_POWER5)

#define COMMON_USER_POWER5_PLUS	(COMMON_USER_PPC64 | PPC_FEATURE_POWER5_PLUS)





/* We only set the spe features if the kernel was compiled with
@@ -160,7 +163,7 @@ struct cpu_spec cpu_specs[] = { 
		.pvr_value		= 0x00350000,

		.cpu_name		= "POWER4 (gp)",

		.cpu_features		= CPU_FTRS_POWER4,

		.cpu_user_features	= COMMON_USER_PPC64,

		.cpu_user_features	= COMMON_USER_POWER4,

		.icache_bsize		= 128,

		.dcache_bsize		= 128,

		.num_pmcs		= 8,
@@ -175,7 +178,7 @@ struct cpu_spec cpu_specs[] = { 
		.pvr_value		= 0x00380000,

		.cpu_name		= "POWER4+ (gq)",

		.cpu_features		= CPU_FTRS_POWER4,

		.cpu_user_features	= COMMON_USER_PPC64,

		.cpu_user_features	= COMMON_USER_POWER4,

		.icache_bsize		= 128,

		.dcache_bsize		= 128,

		.num_pmcs		= 8,
@@ -190,7 +193,7 @@ struct cpu_spec cpu_specs[] = { 
		.pvr_value		= 0x00390000,

		.cpu_name		= "PPC970",

		.cpu_features		= CPU_FTRS_PPC970,

		.cpu_user_features	= COMMON_USER_PPC64 |

		.cpu_user_features	= COMMON_USER_POWER4 |

			PPC_FEATURE_HAS_ALTIVEC_COMP,

		.icache_bsize		= 128,

		.dcache_bsize		= 128,
@@ -212,7 +215,7 @@ struct cpu_spec cpu_specs[] = { 
#else

		.cpu_features		= CPU_FTRS_PPC970,

#endif

		.cpu_user_features	= COMMON_USER_PPC64 |

		.cpu_user_features	= COMMON_USER_POWER4 |

			PPC_FEATURE_HAS_ALTIVEC_COMP,

		.icache_bsize		= 128,

		.dcache_bsize		= 128,
@@ -230,7 +233,7 @@ struct cpu_spec cpu_specs[] = { 
		.pvr_value		= 0x00440000,

		.cpu_name		= "PPC970MP",

		.cpu_features		= CPU_FTRS_PPC970,

		.cpu_user_features	= COMMON_USER_PPC64 |

		.cpu_user_features	= COMMON_USER_POWER4 |

			PPC_FEATURE_HAS_ALTIVEC_COMP,

		.icache_bsize		= 128,

		.dcache_bsize		= 128,
@@ -245,7 +248,7 @@ struct cpu_spec cpu_specs[] = { 
		.pvr_value		= 0x003a0000,

		.cpu_name		= "POWER5 (gr)",

		.cpu_features		= CPU_FTRS_POWER5,

		.cpu_user_features	= COMMON_USER_PPC64,

		.cpu_user_features	= COMMON_USER_POWER5,

		.icache_bsize		= 128,

		.dcache_bsize		= 128,

		.num_pmcs		= 6,
@@ -260,7 +263,7 @@ struct cpu_spec cpu_specs[] = { 
		.pvr_value		= 0x003b0000,

		.cpu_name		= "POWER5 (gs)",

		.cpu_features		= CPU_FTRS_POWER5,

		.cpu_user_features	= COMMON_USER_PPC64,

		.cpu_user_features	= COMMON_USER_POWER5_PLUS,

		.icache_bsize		= 128,

		.dcache_bsize		= 128,

		.num_pmcs		= 6,
@@ -276,7 +279,7 @@ struct cpu_spec cpu_specs[] = { 
		.cpu_name		= "Cell Broadband Engine",

		.cpu_features		= CPU_FTRS_CELL,

		.cpu_user_features	= COMMON_USER_PPC64 |

			PPC_FEATURE_HAS_ALTIVEC_COMP,

			PPC_FEATURE_CELL | PPC_FEATURE_HAS_ALTIVEC_COMP,

		.icache_bsize		= 128,

		.dcache_bsize		= 128,

		.cpu_setup		= __setup_cpu_be,

include/asm-powerpc/cputable.h

+4 −0
Original line number Diff line number Diff line
@@ -16,6 +16,10 @@ 
#define PPC_FEATURE_HAS_EFP_SINGLE	0x00400000

#define PPC_FEATURE_HAS_EFP_DOUBLE	0x00200000

#define PPC_FEATURE_NO_TB		0x00100000

#define PPC_FEATURE_POWER4		0x00080000

#define PPC_FEATURE_POWER5		0x00040000

#define PPC_FEATURE_POWER5_PLUS		0x00020000

#define PPC_FEATURE_CELL		0x00010000



#ifdef __KERNEL__

#ifndef __ASSEMBLY__