spd: tlkd: secure timer interrupt handler
This patch adds an interrupt handler for TLK. On receiving an
interrupt, the source of the interrupt is determined and the
interrupt is marked complete. The IRQ number is passed to
TLK along with a special SMC function ID. TLK issues an SMC
to notify completion of the interrupt handler in the S-EL1
world.
Change-Id: I76f28cee6537245c5e448d2078f86312219cea1a
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
diff --git a/include/bl32/payloads/tlk.h b/include/bl32/payloads/tlk.h
index ce8e3e8..fe6f352 100644
--- a/include/bl32/payloads/tlk.h
+++ b/include/bl32/payloads/tlk.h
@@ -27,6 +27,7 @@
#define TLK_SYSTEM_SUSPEND TLK_TOS_YIELD_FID(0xE001)
#define TLK_SYSTEM_RESUME TLK_TOS_YIELD_FID(0xE002)
#define TLK_SYSTEM_OFF TLK_TOS_YIELD_FID(0xE003)
+#define TLK_IRQ_FIRED TLK_TOS_YIELD_FID(0xE004)
/*
* SMC function IDs that TLK uses to signal various forms of completions
@@ -39,6 +40,7 @@
#define TLK_SUSPEND_DONE (0x32000005 | (ULL(1) << 31))
#define TLK_RESUME_DONE (0x32000006 | (ULL(1) << 31))
#define TLK_SYSTEM_OFF_DONE (0x32000007 | (ULL(1) << 31))
+#define TLK_IRQ_DONE (0x32000008 | (ULL(1) << 31))
/*
* Trusted Application specific function IDs