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| author | Bill Hoffa <wghoffa@us.ibm.com> | 2018-01-09 08:16:44 -0600 |
|---|---|---|
| committer | Daniel M. Crowell <dcrowell@us.ibm.com> | 2018-01-25 17:44:20 -0500 |
| commit | cb444552aebafa54ceb0417c12d61cd48fbc65e0 (patch) | |
| tree | 0668b3062d19ceea3cf3ca626a5a5fcbda1acd1d /src/include/kernel/intmsghandler.H | |
| parent | de1c2d1d9e39215b8c7012a0dbfde029de6bec2d (diff) | |
| download | talos-hostboot-cb444552aebafa54ceb0417c12d61cd48fbc65e0.tar.gz talos-hostboot-cb444552aebafa54ceb0417c12d61cd48fbc65e0.zip | |
Multi-Drawer (IPC) Interrupt/Messaging Support
- Use doorbells instead of IPIs (no IPI support
using LSI interupts in the XIVE intr architecture)
- New message type from kernel to userspace so the
kernel can notify the HB userspace Interrupt
Resource Provider (INTRP) that an IPC message was
sent to the particular HB instance (in P8 this
happened automatically as that was part of the
IPI architecture).
- Re-enable testcase that validates that an IPC
message can be successfully sent.
Change-Id: Ic846f8dca45217205ed61d8381a573e995cb16f2
RTC: 150861
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/52004
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Reviewed-by: Christian R. Geddes <crgeddes@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@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 | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/src/include/kernel/intmsghandler.H b/src/include/kernel/intmsghandler.H index 8f7c08559..9e5a001ed 100644 --- a/src/include/kernel/intmsghandler.H +++ b/src/include/kernel/intmsghandler.H @@ -5,7 +5,7 @@ /* */ /* OpenPOWER HostBoot Project */ /* */ -/* Contributors Listed Below - COPYRIGHT 2011,2016 */ +/* Contributors Listed Below - COPYRIGHT 2011,2018 */ /* [+] International Business Machines Corp. */ /* */ /* */ @@ -73,8 +73,11 @@ class InterruptMsgHdlr : public MessageHandler ACK_HYPERVISOR_INT_REG_OFFSET = 0x830, INTP_BAR_VALUE = 0xFFFFE000, // upper 32 bits of IPCBAR - INTERPROC_XISR = 2, //IPI XISR is 2 + + MSG_KEY_THREAD_WKUP = 0x8000000000000000ul, + MSG_KEY_ADD_CPU_CORE = 0x4000000000000000ul, + MSG_KEY_IPC_MSG = 0x2000000000000000ul, }; /** @@ -156,6 +159,15 @@ class InterruptMsgHdlr : public MessageHandler static void sendThreadWakeupMsg(uint64_t i_pir); /** + * Send message to interrupt resource provider (intrrP) in userspace to + * indicate it was sent an IPC message. The intrrp will re-route the + * message to the appropriate handler. + * + * @param[in] i_pir - The PIR of the CPU to send doorbell to. + */ + static void sendIpcMsg(uint64_t i_pir); + + /** * Issue the sbe/mailbox workaround (issue a mbox EOI to mailbox) * */ |
