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| author | Bill Hoffa <wghoffa@us.ibm.com> | 2016-01-13 14:06:31 -0600 |
|---|---|---|
| committer | Daniel M. Crowell <dcrowell@us.ibm.com> | 2016-05-06 11:03:22 -0400 |
| commit | b42194c6063f64d59fe1c360fa4ae4edd85ad2f3 (patch) | |
| tree | b055e27081164600409203f31c3eac93f32397cb /src/include/kernel/intmsghandler.H | |
| parent | daf95f9b2b66313079186c2d8669ffa75155056f (diff) | |
| download | talos-hostboot-b42194c6063f64d59fe1c360fa4ae4edd85ad2f3.tar.gz talos-hostboot-b42194c6063f64d59fe1c360fa4ae4edd85ad2f3.zip | |
Doorbell Interrupt Base Support for Core/Thread Wakeup
This change includes:
- Implementation of a generic KernelWorkItem Class
- Kernel functionality for doorbell send to specific PIRs
- Kernel changes to send core/thread Wakeup doorbells using
doorbell_send() + placing KernelWorkItems on a cpu stack obj
to be executed during doorbell wakeup
- Kernel Interrupt Message handler changes to send wakeup msgs
- Interrupt Resource Provider (INTRRP) Changes to handle
wakeup msgs and monitor for timeouts
- Changes to the IPL flow to invoke proper Core/Thread Wakeup
- A basic outline (commented out) for how IPC messages can be
implemented in the future
Change-Id: I547fb8719bac657def561565ae11ab18cde72096
CMVC-Prereq: 992722
RTC:137564
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/22815
Tested-by: Jenkins Server
Tested-by: FSP CI Jenkins
Reviewed-by: Andrew J. Geissler <andrewg@us.ibm.com>
Reviewed-by: Prachi Gupta <pragupta@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Diffstat (limited to 'src/include/kernel/intmsghandler.H')
| -rw-r--r-- | src/include/kernel/intmsghandler.H | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/src/include/kernel/intmsghandler.H b/src/include/kernel/intmsghandler.H index 8fd4e34b6..8f7c08559 100644 --- a/src/include/kernel/intmsghandler.H +++ b/src/include/kernel/intmsghandler.H @@ -145,14 +145,15 @@ class InterruptMsgHdlr : public MessageHandler static void addCpuCore(uint64_t i_pir); /** - * Issue an IPI to the core. + * Send message to interrupt resource provider (intrrp) in userspace to + * indicate a wakeup occurred for core/thread indicated by given pir. + * The intrrp monitors the expected cores/threads wakeup and will issue + * a timeout/error in the event that not all expected cores/threads + * send this message * - * @param[in] i_pir - The PIR of the CPU to send IPI at. - * @param[in] i_favor - How favored the interrupt is; 0 = most favored - * 254 = least favored, 255 = no interrupt - * Default 0x1 - IPI from kernel side (wakeup) + * @param[in] i_pir - The PIR of the CPU to send doorbell to. */ - static void sendIPI(uint64_t i_pir, uint8_t i_favor = 0x1); + static void sendThreadWakeupMsg(uint64_t i_pir); /** * Issue the sbe/mailbox workaround (issue a mbox EOI to mailbox) |
