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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2016-07-24 09:27:23 +1000 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2016-08-22 15:26:52 +1000 |
| commit | 9567e18728d0559bc5f79ea927d684dc3b1e3555 (patch) | |
| tree | 17dc839a890c54fd9d437321ab4756585e8e72c4 /include | |
| parent | 514406fa44279996bfc9c85c1e4e53689d375e64 (diff) | |
| download | skiboot-9567e18728d0559bc5f79ea927d684dc3b1e3555.zip skiboot-9567e18728d0559bc5f79ea927d684dc3b1e3555.tar.gz skiboot-9567e18728d0559bc5f79ea927d684dc3b1e3555.tar.bz2 | |
cpu: Add support for nap mode on P8
This allows us to send threads to nap mode when either idle (waiting
for a job) or when in a sleep delay (time_wait*).
We only enable the functionality after the 0x100 vector has been
patched, and we disable it before transferring control to Linux.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/cpu.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/cpu.h b/include/cpu.h index 4164151..341e73d 100644 --- a/include/cpu.h +++ b/include/cpu.h @@ -66,6 +66,8 @@ struct cpu_thread { bool in_mcount; bool in_poller; bool in_reinit; + bool in_sleep; + bool in_idle; uint32_t hbrt_spec_wakeup; /* primary only */ uint64_t save_l2_fir_action1; uint64_t current_token; @@ -251,6 +253,8 @@ extern void cpu_process_jobs(void); extern void cpu_process_local_jobs(void); /* Check if there's any job pending */ bool cpu_check_jobs(struct cpu_thread *cpu); +/* Enable/disable PM */ +void cpu_set_pm_enable(bool pm_enabled); static inline void cpu_give_self_os(void) { |