[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] x86/cpuidle: clean up hw residencies reading code
On 08/11/2011 15:38, "Jan Beulich" <JBeulich@xxxxxxxx> wrote: > Fold redundant code and eliminate pointless casts. > > Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> Acked-by: Keir Fraser <keir@xxxxxxx> > --- a/xen/arch/x86/acpi/cpu_idle.c > +++ b/xen/arch/x86/acpi/cpu_idle.c > @@ -99,13 +99,19 @@ struct hw_residencies > static void do_get_hw_residencies(void *arg) > { > struct cpuinfo_x86 *c = ¤t_cpu_data; > - struct hw_residencies *hw_res = (struct hw_residencies *)arg; > + struct hw_residencies *hw_res = arg; > > if ( c->x86_vendor != X86_VENDOR_INTEL || c->x86 != 6 ) > return; > > switch ( c->x86_model ) > { > + /* Sandy bridge */ > + case 0x2A: > + case 0x2D: > + GET_PC2_RES(hw_res->pc2); > + GET_CC7_RES(hw_res->cc7); > + /* fall through */ > /* Nehalem */ > case 0x1A: > case 0x1E: > @@ -120,32 +126,22 @@ static void do_get_hw_residencies(void * > GET_CC3_RES(hw_res->cc3); > GET_CC6_RES(hw_res->cc6); > break; > - /* Sandy bridge */ > - case 0x2A: > - case 0x2D: > - GET_PC2_RES(hw_res->pc2); > - GET_PC3_RES(hw_res->pc3); > - GET_PC6_RES(hw_res->pc6); > - GET_PC7_RES(hw_res->pc7); > - GET_CC3_RES(hw_res->cc3); > - GET_CC6_RES(hw_res->cc6); > - GET_CC7_RES(hw_res->cc7); > - break; > } > } > > static void get_hw_residencies(uint32_t cpu, struct hw_residencies *hw_res) > { > + memset(hw_res, 0, sizeof(*hw_res)); > + > if ( smp_processor_id() == cpu ) > - do_get_hw_residencies((void *)hw_res); > + do_get_hw_residencies(hw_res); > else > - on_selected_cpus(cpumask_of(cpu), > - do_get_hw_residencies, (void *)hw_res, 1); > + on_selected_cpus(cpumask_of(cpu), do_get_hw_residencies, hw_res, 1); > } > > static void print_hw_residencies(uint32_t cpu) > { > - struct hw_residencies hw_res = {0}; > + struct hw_residencies hw_res; > > get_hw_residencies(cpu, &hw_res); > > @@ -1042,7 +1038,7 @@ int pmstat_get_cx_stat(uint32_t cpuid, s > struct acpi_processor_power *power = processor_powers[cpuid]; > uint64_t usage, res, idle_usage = 0, idle_res = 0; > int i; > - struct hw_residencies hw_res = {0}; > + struct hw_residencies hw_res; > > if ( power == NULL ) > { > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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