search for: cpu_init

...sor.h b/arch/x86/include/asm/processor.h index d8a82e650810..5ac507586769 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -696,6 +696,7 @@ extern void load_direct_gdt(int); extern void load_fixmap_gdt(int); extern void load_percpu_segment(int); extern void cpu_init(void); +extern void cpu_init_exception_handling(void); extern void cr4_init(void); static inline unsigned long get_debugctlmsr(void) diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 1d65365363a1..a9527c0c38fb 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86...

...ype defaults to `int'' arch/xen/x86_64/kernel/setup64.c:231: warning: conflicting types for ''check_efer'' include/asm/proto.h:83: warning: previous declaration of ''check_efer'' was here arch/xen/x86_64/kernel/setup64.c:247: error: parse error before "cpu_init" arch/xen/x86_64/kernel/setup64.c:248: warning: return type defaults to `int'' arch/xen/x86_64/kernel/setup64.c:248: warning: conflicting types for ''cpu_init'' include/linux/sched.h:174: warning: previous declaration of ''cpu_init'' was here make[4]:...

...-git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 97143d87994c..2cc72d583003 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -697,6 +697,13 @@ extern void load_fixmap_gdt(int); extern void load_percpu_segment(int); extern void cpu_init(void); extern void cr4_init(void); +extern void tss_setup(int cpu); + +#ifdef CONFIG_X86_64 +extern void setup_getcpu(int cpu); +#else +static inline void setup_getcpu(int cpu) { } +#endif static inline unsigned long get_debugctlmsr(void) { diff --git a/arch/x86/include/asm/setup.h b/arch/x86/...

...hen CONFIG_X86_IOPORT. > > bloat-o-meter shows a net reduction of 17681 bytes on 32-bit and 9719 > bytes on 64-bit: > > 32-bit bloat-o-meter: > add/remove: 0/3 grow/shrink: 0/10 up/down: 0/-17681 (-17681) > function old new delta > cpu_init 676 668 -8 > ioperm_active 18 7 -11 > init_task 1296 1284 -12 > exit_thread 179 91 -88 > ioperm_get...

...hen CONFIG_X86_IOPORT. > > bloat-o-meter shows a net reduction of 17681 bytes on 32-bit and 9719 > bytes on 64-bit: > > 32-bit bloat-o-meter: > add/remove: 0/3 grow/shrink: 0/10 up/down: 0/-17681 (-17681) > function old new delta > cpu_init 676 668 -8 > ioperm_active 18 7 -11 > init_task 1296 1284 -12 > exit_thread 179 91 -88 > ioperm_get...

...,14 @@ void __init trap_init(void) #endif /* + * Set the IDT descriptor to a fixed read-only location, so that the + * "sidt" instruction will not leak the location of the kernel, and + * to defend the IDT against arbitrary memory write vulnerabilities. + * It will be reloaded in cpu_init() */ + __set_fixmap(FIX_RO_IDT, __pa_symbol(idt_table), PAGE_KERNEL_RO); + idt_descr.address = fix_to_virt(FIX_RO_IDT); + + /* * Should be a barrier for any external CPU state: */ cpu_init(); diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 6afbb2c..8bc4dec 100644 --- a/arch/x86/x...

...,14 @@ void __init trap_init(void) #endif /* + * Set the IDT descriptor to a fixed read-only location, so that the + * "sidt" instruction will not leak the location of the kernel, and + * to defend the IDT against arbitrary memory write vulnerabilities. + * It will be reloaded in cpu_init() */ + __set_fixmap(FIX_RO_IDT, __pa_symbol(idt_table), PAGE_KERNEL_RO); + idt_descr.address = fix_to_virt(FIX_RO_IDT); + + /* * Should be a barrier for any external CPU state: */ cpu_init(); diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 6afbb2c..8bc4dec 100644 --- a/arch/x86/x...

Seems to work OK for native and Xen. I had to play a bit with the paravirt-sched-clock patch to deal with the VMI changes. Zach, can you check that it still works? Thanks, J

Seems to work OK for native and Xen. I had to play a bit with the paravirt-sched-clock patch to deal with the VMI changes. Zach, can you check that it still works? Thanks, J

...th a scalable proc_info_list which including cpu id and cpu initialize function. In head.S, search cpu specific MIDR in procinfo and call such initialize function. Currently, support Cortex-A7 and Cortex-A15. Signed-off-by: Bamvor Jian Zhang <bjzhang@suse.com> --- changes since v2 1), define cpu_init function instead of assemble jump code in struct proc_info_list 2), add commit in look up proc info in assemble code. 3), merge __v7_ca7mp and __v7_ca15mp and relative definition into prov-v7.S 4), move MIDR mask definition from headers to prov-v7.S 5), move procinfo.h from xen/include/asm-arm/arm3...

...ls anymore, and anything new should be using /dev/port instead, or better yet writing a driver. Copying the bloat-o-meter stats from the final patch: 32-bit bloat-o-meter: add/remove: 0/3 grow/shrink: 0/10 up/down: 0/-17681 (-17681) function old new delta cpu_init 676 668 -8 ioperm_active 18 7 -11 init_task 1296 1284 -12 exit_thread 179 91 -88 ioperm_get 103...

...ls anymore, and anything new should be using /dev/port instead, or better yet writing a driver. Copying the bloat-o-meter stats from the final patch: 32-bit bloat-o-meter: add/remove: 0/3 grow/shrink: 0/10 up/down: 0/-17681 (-17681) function old new delta cpu_init 676 668 -8 ioperm_active 18 7 -11 init_task 1296 1284 -12 exit_thread 179 91 -88 ioperm_get 103...

...W_PSTATE) - pol->cur = find_khz_freq_from_fiddid(data->currfid, data->currdid); + pol->cur = find_khz_freq_from_pstate(data->powernow_table, newstate); else pol->cur = find_khz_freq_from_fid(data->currfid); ret = 0; @@ -1259,7 +1209,7 @@ static int __cpuinit powernowk8_cpu_init + (3 * (1 << data->irt) * 10)) * 1000; if (cpu_family == CPU_HW_PSTATE) - pol->cur = find_khz_freq_from_fiddid(data->currfid, data->currdid); + pol->cur = find_khz_freq_from_pstate(data->powernow_table, data->currpstate); else pol->cur = find_khz_freq_...

...sor.h > index d8a82e650810..5ac507586769 100644 > --- a/arch/x86/include/asm/processor.h > +++ b/arch/x86/include/asm/processor.h > @@ -696,6 +696,7 @@ extern void load_direct_gdt(int); > extern void load_fixmap_gdt(int); > extern void load_percpu_segment(int); > extern void cpu_init(void); > +extern void cpu_init_exception_handling(void); > extern void cr4_init(void); > > static inline unsigned long get_debugctlmsr(void) > diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c > index 1d65365363a1..a9527c0c38fb 100644 > --- a/arch/x86...

OK, here it is. Benchmarks still coming. This is against Andi's 2.6.18-rc7-git3 tree, and replaces the patches between (and not including) i386-pda-asm-offsets and i386-early-fault. One patch is identical, one is mildly modified, the rest are re-implemented but inspired by Jeremy's PDA work. Thanks, Rusty. -- Help! Save Australia from the worst of the DMCA: http://linux.org.au/law

OK, here it is. Benchmarks still coming. This is against Andi's 2.6.18-rc7-git3 tree, and replaces the patches between (and not including) i386-pda-asm-offsets and i386-early-fault. One patch is identical, one is mildly modified, the rest are re-implemented but inspired by Jeremy's PDA work. Thanks, Rusty. -- Help! Save Australia from the worst of the DMCA: http://linux.org.au/law

...inline functions, which become no-ops when CONFIG_X86_IOPORT. bloat-o-meter shows a net reduction of 17681 bytes on 32-bit and 9719 bytes on 64-bit: 32-bit bloat-o-meter: add/remove: 0/3 grow/shrink: 0/10 up/down: 0/-17681 (-17681) function old new delta cpu_init 676 668 -8 ioperm_active 18 7 -11 init_task 1296 1284 -12 exit_thread 179 91 -88 ioperm_get 103...

...d 9491 bytes on 64-bit: 32-bit bloat-o-meter: add/remove: 0/3 grow/shrink: 0/8 up/down: 0/-9223 (-9223) function old new delta ioperm_active 14 3 -11 init_task 888 876 -12 cpu_init 497 465 -32 exit_thread 147 75 -72 ioperm_get 100 6 -94 __switch_to_xtra 239 141 -98 sys_iopl 114...

...when CONFIG_X86_IOPORT. > > bloat-o-meter shows a net reduction of 17681 bytes on 32-bit and 9719 > bytes on 64-bit: > > 32-bit bloat-o-meter: > add/remove: 0/3 grow/shrink: 0/10 up/down: 0/-17681 (-17681) > function old new delta > cpu_init 676 668 -8 > ioperm_active 18 7 -11 > init_task 1296 1284 -12 > exit_thread 179 91 -88 > ioperm_get...

...when CONFIG_X86_IOPORT. > > bloat-o-meter shows a net reduction of 17681 bytes on 32-bit and 9719 > bytes on 64-bit: > > 32-bit bloat-o-meter: > add/remove: 0/3 grow/shrink: 0/10 up/down: 0/-17681 (-17681) > function old new delta > cpu_init 676 668 -8 > ioperm_active 18 7 -11 > init_task 1296 1284 -12 > exit_thread 179 91 -88 > ioperm_get...