src/patches/suse-2.6.27.39/patches.xen/xen-cpufreq-report

   1 From: jbeulich@novell.com
   2 Subject: make /proc/cpuinfo track CPU speed
   3 Patch-mainline: obsolete
   4
   5 --- sle11-2009-07-31.orig/arch/x86/kernel/acpi/processor_extcntl_xen.c  2009-07-31 14:52:14.000000000 +0200
   6 +++ sle11-2009-07-31/arch/x86/kernel/acpi/processor_extcntl_xen.c       2009-07-31 15:14:03.000000000 +0200
   7 @@ -204,3 +204,14 @@ void arch_acpi_processor_init_extcntl(co
   8         *ops = &xen_extcntl_ops;
   9  }
  10  EXPORT_SYMBOL(arch_acpi_processor_init_extcntl);
  11 +
  12 +unsigned int cpufreq_quick_get(unsigned int cpu)
  13 +{
  14 +       xen_platform_op_t op = {
  15 +               .cmd                    = XENPF_get_cpu_freq,
  16 +               .interface_version      = XENPF_INTERFACE_VERSION,
  17 +               .u.get_cpu_freq.vcpu    = cpu
  18 +       };
  19 +
  20 +       return HYPERVISOR_platform_op(&op) == 0 ? op.u.get_cpu_freq.freq : 0;
  21 +}
  22 --- sle11-2009-07-31.orig/include/linux/cpufreq.h       2009-07-31 14:49:20.000000000 +0200
  23 +++ sle11-2009-07-31/include/linux/cpufreq.h    2008-10-01 16:44:34.000000000 +0200
  24 @@ -282,7 +282,7 @@ int cpufreq_update_policy(unsigned int c
  25  unsigned int cpufreq_get(unsigned int cpu);
  26
  27  /* query the last known CPU freq (in kHz). If zero, cpufreq couldn't detect it */
  28 -#ifdef CONFIG_CPU_FREQ
  29 +#if defined(CONFIG_CPU_FREQ) || defined(CONFIG_PROCESSOR_EXTERNAL_CONTROL)
  30  unsigned int cpufreq_quick_get(unsigned int cpu);
  31  #else
  32  static inline unsigned int cpufreq_quick_get(unsigned int cpu)
  33 --- sle11-2009-07-31.orig/include/xen/interface/platform.h      2009-07-31 14:49:20.000000000 +0200
  34 +++ sle11-2009-07-31/include/xen/interface/platform.h   2008-10-01 16:44:34.000000000 +0200
  35 @@ -312,6 +312,16 @@ struct xenpf_set_processor_pminfo {
  36  typedef struct xenpf_set_processor_pminfo xenpf_set_processor_pminfo_t;
  37  DEFINE_XEN_GUEST_HANDLE(xenpf_set_processor_pminfo_t);
  38
  39 +#define XENPF_get_cpu_freq        ('N' << 24)
  40 +struct xenpf_get_cpu_freq {
  41 +    /* IN variables */
  42 +    uint32_t vcpu;
  43 +    /* OUT variables */
  44 +    uint32_t freq; /* in kHz */
  45 +};
  46 +typedef struct xenpf_get_cpu_freq xenpf_get_cpu_freq_t;
  47 +DEFINE_XEN_GUEST_HANDLE(xenpf_get_cpu_freq_t);
  48 +
  49  struct xen_platform_op {
  50      uint32_t cmd;
  51      uint32_t interface_version; /* XENPF_INTERFACE_VERSION */
  52 @@ -327,6 +337,7 @@ struct xen_platform_op {
  53          struct xenpf_change_freq       change_freq;
  54          struct xenpf_getidletime       getidletime;
  55          struct xenpf_set_processor_pminfo set_pminfo;
  56 +        struct xenpf_get_cpu_freq      get_cpu_freq;
  57          uint8_t                        pad[128];
  58      } u;
  59  };