blob: bee350d55f88c54282c51a9ac097c3542154350c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
OPAL_REINIT_CPUS
================
::
static int64_t opal_reinit_cpus(uint64_t flags);
This OPAL call reinitializes some bit of CPU state across *ALL* CPUs.
Consequently, all CPUs must be in OPAL for this call to succeed (either
at boot time or after OPAL_RETURN_CPU is called)
Arguments
---------
Currently, possible flags are: ::
enum {
OPAL_REINIT_CPUS_HILE_BE = (1 << 0),
OPAL_REINIT_CPUS_HILE_LE = (1 << 1),
OPAL_REINIT_CPUS_MMU_HASH = (1 << 2),
OPAL_REINIT_CPUS_MMU_RADIX = (1 << 3),
OPAL_REINIT_CPUS_TM_SUSPEND_DISABLED = (1 << 4),
};
Extra flags may be added in the future, so other bits *must* be 0.
On POWER7 CPUs, only OPAL_REINIT_CPUS_HILE_BE is supported. All other
flags will return OPAL_UNSUPPORTED.
On POWER8 CPUs, only OPAL_REINIT_CPUS_HILE_BE and OPAL_REINIT_CPUS_HILE_LE
are support and other bits *MUST NOT* be set.
On POWER9 CPUs, all options including OPAL_REINIT_CPUS_MMU_HASH and
OPAL_REINIT_CPUS_MMU_RADIX.
OPAL_REINIT_CPUS_TM_SUSPEND_DISABLED
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
This flag requests that CPUs be configured with TM (Transactional Memory)
suspend mode disabled. This may only be supported on some CPU versions.
Returns
-------
``OPAL_SUCCESS``
Success!
``OPAL_UNSUPPORTED``
Processor does not suport reinit flags.
|
