diff options
| author | Varun Wadekar <vwadekar@nvidia.com> | 2015-08-26 12:49:03 +0530 |
|---|---|---|
| committer | Varun Wadekar <vwadekar@nvidia.com> | 2015-09-30 10:38:28 +0530 |
| commit | cb790c5e486cba4fbc4a4d0cdb89b5c65c886355 (patch) | |
| tree | a1d199b96bd8f7d5d5f8b8cbd85e0bc6ed44b223 /include/bl32 | |
| parent | a6ef882c0e29f9459a927106fab36ea31587bf9a (diff) | |
Send power management events to the Trusted OS (TLK)
This patch adds PM handlers to TLKD for the system suspend/resume and
system poweroff/reset cases. TLK expects all SMCs through a single
handler, which then fork out into multiple handlers depending on the
SMC. We tap into the same single entrypoint by restoring the S-EL1
context before passing the PM event via register 'x0'. On completion
of the PM event, TLK sends a completion SMC and TLKD then moves on
with the PM process.
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Diffstat (limited to 'include/bl32')
| -rw-r--r-- | include/bl32/payloads/tlk.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/bl32/payloads/tlk.h b/include/bl32/payloads/tlk.h index bdfcc9a3..6ce1eb69 100644 --- a/include/bl32/payloads/tlk.h +++ b/include/bl32/payloads/tlk.h @@ -43,6 +43,9 @@ #define TLK_REGISTER_LOGBUF TLK_TOS_STD_FID(0x1) #define TLK_REGISTER_REQBUF TLK_TOS_STD_FID(0x2) #define TLK_RESUME_FID TLK_TOS_STD_FID(0x100) +#define TLK_SYSTEM_SUSPEND TLK_TOS_STD_FID(0xE001) +#define TLK_SYSTEM_RESUME TLK_TOS_STD_FID(0xE002) +#define TLK_SYSTEM_OFF TLK_TOS_STD_FID(0xE003) /* * SMC function IDs that TLK uses to signal various forms of completions @@ -52,6 +55,9 @@ #define TLK_PREEMPTED (0x32000002 | (1 << 31)) #define TLK_ENTRY_DONE (0x32000003 | (1 << 31)) #define TLK_VA_TRANSLATE (0x32000004 | (1 << 31)) +#define TLK_SUSPEND_DONE (0x32000005 | (1 << 31)) +#define TLK_RESUME_DONE (0x32000006 | (1 << 31)) +#define TLK_SYSTEM_OFF_DONE (0x32000007 | (1 << 31)) /* * Trusted Application specific function IDs |