diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 693e353999cdfbda06f6dedf3ece288990ebffa9..cab4e562b5cbda0e7f4a4b67b670a7538fa5cc34 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -63,7 +63,7 @@ static __cpuinit int amd_apic_timer_broken(void) int force_mwait __cpuinitdata; -void __cpuinit early_init_amd(struct cpuinfo_x86 *c) +static void __cpuinit early_init_amd(struct cpuinfo_x86 *c) { if (cpuid_eax(0x80000000) >= 0x80000007) { c->x86_power = cpuid_edx(0x80000007); @@ -336,6 +336,7 @@ static struct cpu_dev amd_cpu_dev __cpuinitdata = { } }, }, + .c_early_init = early_init_amd, .c_init = init_amd, .c_size_cache = amd_size_cache, }; @@ -345,3 +346,5 @@ int __init amd_init_cpu(void) cpu_devs[X86_VENDOR_AMD] = &amd_cpu_dev; return 0; } + +cpu_vendor_dev_register(X86_VENDOR_AMD, &amd_cpu_dev); diff --git a/arch/x86/kernel/cpu/centaur.c b/arch/x86/kernel/cpu/centaur.c index 9681fa15ddf076f43e02741c7f4f9bbadfab6554..194ec8311c3b46e1f8a18806abfde190d41ebb95 100644 --- a/arch/x86/kernel/cpu/centaur.c +++ b/arch/x86/kernel/cpu/centaur.c @@ -464,8 +464,4 @@ static struct cpu_dev centaur_cpu_dev __cpuinitdata = { .c_size_cache = centaur_size_cache, }; -int __init centaur_init_cpu(void) -{ - cpu_devs[X86_VENDOR_CENTAUR] = ¢aur_cpu_dev; - return 0; -} +cpu_vendor_dev_register(X86_VENDOR_CENTAUR, ¢aur_cpu_dev); diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index a38aafaefc230b4bfc49c34c98fc2c443fff8318..0fd6be154d5db9c8a620322af78ce4247d9267d1 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -328,14 +328,9 @@ static void __init early_cpu_detect(void) get_cpu_vendor(c, 1); - switch (c->x86_vendor) { - case X86_VENDOR_AMD: - early_init_amd(c); - break; - case X86_VENDOR_INTEL: - early_init_intel(c); - break; - } + if (c->x86_vendor != X86_VENDOR_UNKNOWN && + cpu_devs[c->x86_vendor]->c_early_init) + cpu_devs[c->x86_vendor]->c_early_init(c); early_get_cap(c); } @@ -616,23 +611,15 @@ __setup("clearcpuid=", setup_disablecpuid); cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE; -/* This is hacky. :) - * We're emulating future behavior. - * In the future, the cpu-specific init functions will be called implicitly - * via the magic of initcalls. - * They will insert themselves into the cpu_devs structure. - * Then, when cpu_init() is called, we can just iterate over that array. - */ void __init early_cpu_init(void) { - intel_cpu_init(); - cyrix_init_cpu(); - nsc_init_cpu(); - amd_init_cpu(); - centaur_init_cpu(); - transmeta_init_cpu(); - nexgen_init_cpu(); - umc_init_cpu(); + struct cpu_vendor_dev *cvdev; + + for (cvdev = __x86cpuvendor_start ; + cvdev < __x86cpuvendor_end ; + cvdev++) + cpu_devs[cvdev->vendor] = cvdev->cpu_dev; + early_cpu_detect(); } diff --git a/arch/x86/kernel/cpu/cpu.h b/arch/x86/kernel/cpu/cpu.h index e0b38c33d84276c971110146960ecdcc1b11fdb3..783691b2a7381648bbc03ccf98842b0fcad6df22 100644 --- a/arch/x86/kernel/cpu/cpu.h +++ b/arch/x86/kernel/cpu/cpu.h @@ -14,6 +14,7 @@ struct cpu_dev { struct cpu_model_info c_models[4]; + void (*c_early_init)(struct cpuinfo_x86 *c); void (*c_init)(struct cpuinfo_x86 * c); void (*c_identify)(struct cpuinfo_x86 * c); unsigned int (*c_size_cache)(struct cpuinfo_x86 * c, unsigned int size); @@ -21,18 +22,17 @@ struct cpu_dev { extern struct cpu_dev * cpu_devs [X86_VENDOR_NUM]; +struct cpu_vendor_dev { + int vendor; + struct cpu_dev *cpu_dev; +}; + +#define cpu_vendor_dev_register(cpu_vendor_id, cpu_dev) \ + static struct cpu_vendor_dev __cpu_vendor_dev_##cpu_vendor_id __used \ + __attribute__((__section__(".x86cpuvendor.init"))) = \ + { cpu_vendor_id, cpu_dev } + +extern struct cpu_vendor_dev __x86cpuvendor_start[], __x86cpuvendor_end[]; + extern int get_model_name(struct cpuinfo_x86 *c); extern void display_cacheinfo(struct cpuinfo_x86 *c); - -extern void early_init_intel(struct cpuinfo_x86 *c); -extern void early_init_amd(struct cpuinfo_x86 *c); - -/* Specific CPU type init functions */ -int intel_cpu_init(void); -int amd_init_cpu(void); -int cyrix_init_cpu(void); -int nsc_init_cpu(void); -int centaur_init_cpu(void); -int transmeta_init_cpu(void); -int nexgen_init_cpu(void); -int umc_init_cpu(void); diff --git a/arch/x86/kernel/cpu/cyrix.c b/arch/x86/kernel/cpu/cyrix.c index 7139b02627034cb3f69482541b62b1102bbe6287..9c4ee98f2cb8a0ab07553c9292e4cea115c50ea2 100644 --- a/arch/x86/kernel/cpu/cyrix.c +++ b/arch/x86/kernel/cpu/cyrix.c @@ -439,11 +439,7 @@ static struct cpu_dev cyrix_cpu_dev __cpuinitdata = { .c_identify = cyrix_identify, }; -int __init cyrix_init_cpu(void) -{ - cpu_devs[X86_VENDOR_CYRIX] = &cyrix_cpu_dev; - return 0; -} +cpu_vendor_dev_register(X86_VENDOR_CYRIX, &cyrix_cpu_dev); static struct cpu_dev nsc_cpu_dev __cpuinitdata = { .c_vendor = "NSC", @@ -451,9 +447,4 @@ static struct cpu_dev nsc_cpu_dev __cpuinitdata = { .c_init = init_nsc, }; -int __init nsc_init_cpu(void) -{ - cpu_devs[X86_VENDOR_NSC] = &nsc_cpu_dev; - return 0; -} - +cpu_vendor_dev_register(X86_VENDOR_NSC, &nsc_cpu_dev); diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index fae31ce747bdc042d0d94723a4e8da4fe5b61721..34468b2e25072ab2667dac23bfb58d46774b12c5 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -30,7 +30,7 @@ struct movsl_mask movsl_mask __read_mostly; #endif -void __cpuinit early_init_intel(struct cpuinfo_x86 *c) +static void __cpuinit early_init_intel(struct cpuinfo_x86 *c) { /* Netburst reports 64 bytes clflush size, but does IO in 128 bytes */ if (c->x86 == 15 && c->x86_cache_alignment == 64) @@ -290,15 +290,12 @@ static struct cpu_dev intel_cpu_dev __cpuinitdata = { } }, }, + .c_early_init = early_init_intel, .c_init = init_intel, .c_size_cache = intel_size_cache, }; -__init int intel_cpu_init(void) -{ - cpu_devs[X86_VENDOR_INTEL] = &intel_cpu_dev; - return 0; -} +cpu_vendor_dev_register(X86_VENDOR_INTEL, &intel_cpu_dev); #ifndef CONFIG_X86_CMPXCHG unsigned long cmpxchg_386_u8(volatile void *ptr, u8 old, u8 new) diff --git a/arch/x86/kernel/cpu/transmeta.c b/arch/x86/kernel/cpu/transmeta.c index e8b422c1c51267419275e5db474fbd2b5e237ea3..c2d168e992f4eb50896fe11b13603eadfa269bf8 100644 --- a/arch/x86/kernel/cpu/transmeta.c +++ b/arch/x86/kernel/cpu/transmeta.c @@ -102,8 +102,4 @@ static struct cpu_dev transmeta_cpu_dev __cpuinitdata = { .c_identify = transmeta_identify, }; -int __init transmeta_init_cpu(void) -{ - cpu_devs[X86_VENDOR_TRANSMETA] = &transmeta_cpu_dev; - return 0; -} +cpu_vendor_dev_register(X86_VENDOR_TRANSMETA, &transmeta_cpu_dev); diff --git a/arch/x86/kernel/cpu/umc.c b/arch/x86/kernel/cpu/umc.c index a7a4e75bdcd71e7d33a5cd7a45cbcc4646c0782d..b1acf08245fbbc105ee667d13c0f0f253a49bc95 100644 --- a/arch/x86/kernel/cpu/umc.c +++ b/arch/x86/kernel/cpu/umc.c @@ -19,8 +19,5 @@ static struct cpu_dev umc_cpu_dev __cpuinitdata = { }, }; -int __init umc_init_cpu(void) -{ - cpu_devs[X86_VENDOR_UMC] = &umc_cpu_dev; - return 0; -} +cpu_vendor_dev_register(X86_VENDOR_UMC, &umc_cpu_dev); + diff --git a/arch/x86/kernel/vmlinux_32.lds.S b/arch/x86/kernel/vmlinux_32.lds.S index 2ffa9656fe7ac5ea3fe5fc2b175e996d37972f7a..ce5ed083a1e905e463486e8f05e9125d2f41d157 100644 --- a/arch/x86/kernel/vmlinux_32.lds.S +++ b/arch/x86/kernel/vmlinux_32.lds.S @@ -149,6 +149,11 @@ SECTIONS *(.con_initcall.init) __con_initcall_end = .; } + .x86cpuvendor.init : AT(ADDR(.x86cpuvendor.init) - LOAD_OFFSET) { + __x86cpuvendor_start = .; + *(.x86cpuvendor.init) + __x86cpuvendor_end = .; + } SECURITY_INIT . = ALIGN(4); .altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) { diff --git a/arch/x86/kernel/vmlinux_64.lds.S b/arch/x86/kernel/vmlinux_64.lds.S index 4c369451007bba516e24fe592e2bbc765426887b..b7ab3c335fae73242ace2deec574165f05ce774a 100644 --- a/arch/x86/kernel/vmlinux_64.lds.S +++ b/arch/x86/kernel/vmlinux_64.lds.S @@ -177,6 +177,11 @@ SECTIONS *(.con_initcall.init) } __con_initcall_end = .; + __x86cpuvendor_start = .; + .x86cpuvendor.init : AT(ADDR(.x86cpuvendor.init) - LOAD_OFFSET) { + *(.x86cpuvendor.init) + } + __x86cpuvendor_end = .; SECURITY_INIT . = ALIGN(8);