svn commit: r322523 - in stable/10/sys: amd64/amd64 amd64/include x86/x86

Sepherosa Ziehau sepherosa at gmail.com
Tue Aug 15 03:21:00 UTC 2017


Thank you!

On Tue, Aug 15, 2017 at 7:46 AM, Jung-uk Kim <jkim at freebsd.org> wrote:
> Author: jkim
> Date: Mon Aug 14 23:46:10 2017
> New Revision: 322523
> URL: https://svnweb.freebsd.org/changeset/base/322523
>
> Log:
>   MFC:  r322323
>
>   Split identify_cpu() into two functions for amd64 as we do for i386.  This
>   fixes a regression introduced in r322205.
>
>   Approved by:  re (marius)
>
> Modified:
>   stable/10/sys/amd64/amd64/machdep.c
>   stable/10/sys/amd64/include/md_var.h
>   stable/10/sys/x86/x86/identcpu.c
> Directory Properties:
>   stable/10/   (props changed)
>
> Modified: stable/10/sys/amd64/amd64/machdep.c
> ==============================================================================
> --- stable/10/sys/amd64/amd64/machdep.c Mon Aug 14 22:38:54 2017        (r322522)
> +++ stable/10/sys/amd64/amd64/machdep.c Mon Aug 14 23:46:10 2017        (r322523)
> @@ -1853,6 +1853,7 @@ hammer_time(u_int64_t modulep, u_int64_t physfree)
>         ksym_end = MD_FETCH(kmdp, MODINFOMD_ESYM, uintptr_t);
>  #endif
>
> +       identify_cpu();
>         identify_hypervisor();
>
>         /* Init basic tunables, hz etc */
> @@ -1950,7 +1951,7 @@ hammer_time(u_int64_t modulep, u_int64_t physfree)
>             MODINFO_METADATA | MODINFOMD_EFI_MAP) != NULL)
>                 vty_set_preferred(VTY_VT);
>
> -       identify_cpu();         /* Final stage of CPU initialization */
> +       finishidentcpu();       /* Final stage of CPU initialization */
>         initializecpu();        /* Initialize CPU registers */
>         initializecpucache();
>
>
> Modified: stable/10/sys/amd64/include/md_var.h
> ==============================================================================
> --- stable/10/sys/amd64/include/md_var.h        Mon Aug 14 22:38:54 2017        (r322522)
> +++ stable/10/sys/amd64/include/md_var.h        Mon Aug 14 23:46:10 2017        (r322523)
> @@ -119,6 +119,7 @@ void        fsbase_load_fault(void) __asm(__STRING(fsbase_loa
>  void   gsbase_load_fault(void) __asm(__STRING(gsbase_load_fault));
>  void   dump_add_page(vm_paddr_t);
>  void   dump_drop_page(vm_paddr_t);
> +void   finishidentcpu(void);
>  void   identify_cpu(void);
>  void   identify_hypervisor(void);
>  void   initializecpu(void);
>
> Modified: stable/10/sys/x86/x86/identcpu.c
> ==============================================================================
> --- stable/10/sys/x86/x86/identcpu.c    Mon Aug 14 22:38:54 2017        (r322522)
> +++ stable/10/sys/x86/x86/identcpu.c    Mon Aug 14 23:46:10 2017        (r322523)
> @@ -1346,23 +1346,12 @@ fix_cpuid(void)
>         return (false);
>  }
>
> -/*
> - * Final stage of CPU identification.
> - */
> -#ifdef __i386__
> +#ifdef __amd64__
>  void
> -finishidentcpu(void)
> -#else
> -void
>  identify_cpu(void)
> -#endif
>  {
> -       u_int regs[4], cpu_stdext_disable;
> -#ifdef __i386__
> -       u_char ccr3;
> -#endif
> +       u_int regs[4];
>
> -#ifdef __amd64__
>         do_cpuid(0, regs);
>         cpu_high = regs[0];
>         ((u_int *)&cpu_vendor)[0] = regs[1];
> @@ -1375,6 +1364,18 @@ identify_cpu(void)
>         cpu_procinfo = regs[1];
>         cpu_feature = regs[3];
>         cpu_feature2 = regs[2];
> +}
> +#endif
> +
> +/*
> + * Final stage of CPU identification.
> + */
> +void
> +finishidentcpu(void)
> +{
> +       u_int regs[4], cpu_stdext_disable;
> +#ifdef __i386__
> +       u_char ccr3;
>  #endif
>
>         cpu_vendor_id = find_cpu_vendor_id();
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