Lines Matching refs:processor

20 a particular processor model in it depends on whether or not it recognizes that
21 processor model and may also depend on information coming from the platform
26 ``intel_idle`` uses the ``MWAIT`` instruction to inform the processor that the
28 processor's functional blocks into low-power states.  That instruction takes two
30 first of which, referred to as a *hint*, can be used by the processor to
47 Each ``MWAIT`` hint value is interpreted by the processor as a license to
48 reconfigure itself in a certain way in order to save energy.  The processor
52 processor) corresponding to them depends on the processor model and it may also
59 for different processor models included in the driver itself and the ACPI tables
60 of the system.  The former are always used if the processor model at hand is
62 the given processor model (which is the case for all server processor models
63 recognized by ``intel_idle``) or if the processor model is not recognized.
65 tables with any processor model recognized by it; see
78 ``MWAIT`` instruction is expected to be used to tell the processor that it can
90 If the processor model at hand is recognized by ``intel_idle``, there is a
95 (depending on the processor model), all of the listed idle state are enabled by
107 If the given processor model is not recognized by ``intel_idle``, but it
119 various processor models recognized by ``intel_idle``) and for the other idle
122 in the majority of cases for the processor models recognized by ``intel_idle``).
135 The next step is to check whether or not the processor model is known to the
137 `above <intel-idle-enumeration-of-states_>`_), and whether or not the processor
139 the ``MWAIT`` support in the processor is enumerated through ``CPUID`` and the
159 required for the given processor model.
198 recognized processor models, respectively (they both are unset by default and
225 Typically, in a processor supporting the ``MWAIT`` instruction there are (at
227 "core C-states", covers individual cores in the processor, whereas the other
228 level, referred to as "package C-states", covers the entire processor package
232 Some of the ``MWAIT`` hint values allow the processor to use core C-states only
238 ``MWAIT`` hint value representing the ``C3`` idle state allows the processor to
243 cases) it gives the processor a license to put the entire package (possibly
251 As a rule, there is no simple way to make the processor use core C-states only
254 only (like for ``C1``) must always assume that this may cause the processor to