diff options
| author | Andreas Dannenberg <dannenberg@ti.com> | 2019-06-07 19:24:40 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-07-26 21:49:21 -0400 |
| commit | 410adcc9e2750d6852afe9f544cd74ad434f8937 (patch) | |
| tree | 7c6b8240e16bc94fc1b994800b34f56123eae5d7 /include | |
| parent | ae0b8a2bc8f46f2b4aadca50f9110803463ddb7e (diff) | |
firmware: ti_sci: Add processor shutdown API method
Add and expose a new processor shutdown API that wraps the two TISCI
messages involved in initiating a core shutdown. The API will first
queue a message to have the DMSC wait for a certain processor boot
status to happen followed by a message to trigger the actual shutdown-
with both messages being sent without waiting or requesting for a
response. Note that the processor shutdown API call will need to be
followed up by user software placing the respective core into either
WFE or WFI mode.
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/soc/ti/ti_sci_protocol.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/soc/ti/ti_sci_protocol.h b/include/linux/soc/ti/ti_sci_protocol.h index 842fb596f7..cd6e5853b4 100644 --- a/include/linux/soc/ti/ti_sci_protocol.h +++ b/include/linux/soc/ti/ti_sci_protocol.h @@ -266,6 +266,8 @@ struct ti_sci_core_ops { * @set_proc_boot_ctrl: Setup limited control flags in specific cases. * @proc_auth_boot_image: * @get_proc_boot_status: Get the state of physical processor + * @proc_shutdown_no_wait: Shutdown a core without requesting or waiting for a + * response. * * NOTE: for all these functions, the following parameters are generic in * nature: @@ -287,6 +289,8 @@ struct ti_sci_proc_ops { int (*get_proc_boot_status)(const struct ti_sci_handle *handle, u8 pid, u64 *bv, u32 *cfg_flags, u32 *ctrl_flags, u32 *sts_flags); + int (*proc_shutdown_no_wait)(const struct ti_sci_handle *handle, + u8 pid); }; #define TI_SCI_RING_MODE_RING (0) |