Lines Matching full:split

30  * Split/unsplit procedure:
32  * A core can be in one of three states, unsplit, 2-way split, and 4-way split.
39  *  2-way split |        2
40  *  4-way split |        4
42  * The core is split along thread boundaries, the mapping between subcores and
52  *  2-way split:
59  *  4-way split:
70  * It is not possible to transition between either of the split states, the
74  *  |         |  <---->  | 2-way split |
78  *  |         |  <---->  | 4-way split |
104  * complicated by the fact that after the split occurs, the newly created
108  * means they must not be running in virtual mode when the split occurs. The
115  * to see the core split.
120  * to request the split, and spins waiting to see that the split has happened.
122  * Concurrently the secondaries will notice the split. When they do they set up
132  * offline loop and do a split or unsplit.
134  * 0 - no split happening
136  * 2 - split to 2 in progress
137  * 4 - split to 4 in progress
344 		pr_err("Unable to change split core mode while KVM active.\n");  in set_subcores_per_core()
433 	 * We need all threads in a core to be present to split/unsplit so  in subcore_init()