diff options
Diffstat (limited to 'src/include/kernel')
| -rw-r--r-- | src/include/kernel/ipc.H | 24 | ||||
| -rw-r--r-- | src/include/kernel/misc.H | 4 |
2 files changed, 27 insertions, 1 deletions
diff --git a/src/include/kernel/ipc.H b/src/include/kernel/ipc.H index f411808c3..2350b6076 100644 --- a/src/include/kernel/ipc.H +++ b/src/include/kernel/ipc.H @@ -39,7 +39,31 @@ struct ipc_data_area_t uint32_t pir; }; +/** + * This stucture maps an IPC data area needed by start_payload that is common + * to all HB instances. + * @note Don't change the order or size of this stucture + * w/o also changing src/kernel/shutdown.S + */ +struct start_payload_data_area_t +{ + /** barriers needed in shutdown.S - see src/kernel/shutdown.S + * barrier[0] blocks until all nodes have reported cpu/node_count + * barrier[1] blocks until safe to update HRMOR on master + * barrier[2] blocks until HRMORs updated + * barrier[3] blocks until SLBs, ERATs etc. cleared + * barrier[4] blocks until all CPUs have jumpted to payload except the + * one with the lowest PIR + */ + uint64_t barrier[5]; + uint64_t lowest_PIR; //!< Lowest cpu PIR in entire system (all nodes) + uint64_t cpu_count; //!< Total number of cpu threads in entire system + uint64_t node_count; //!< Total number of nodes in entire system +}; + + extern ipc_data_area_t ipc_data_area; +extern start_payload_data_area_t start_payload_data_area; }; #endif diff --git a/src/include/kernel/misc.H b/src/include/kernel/misc.H index 42cfd3fa0..a7e40356d 100644 --- a/src/include/kernel/misc.H +++ b/src/include/kernel/misc.H @@ -5,7 +5,7 @@ /* */ /* IBM CONFIDENTIAL */ /* */ -/* COPYRIGHT International Business Machines Corp. 2011,2013 */ +/* COPYRIGHT International Business Machines Corp. 2011,2014 */ /* */ /* p1 */ /* */ @@ -47,6 +47,8 @@ namespace KernelMisc extern uint64_t g_payload_entry; /** @brief Address from base of payload data pointer. */ extern uint64_t g_payload_data; + /** @brief master host boot instance number (node) */ + extern uint64_t g_masterHBInstance; /** @fn in_kernel_mode * @brief Determine if the code is currently in kernel mode or not. |
