FreeCalypso > hg > fc-tourmaline
view src/nucleus/quf.c @ 223:740a8e8fc9d7
startup sync logic rework for the new PWON button boot scheme
Previously we added logic to the MMI task to hold off PEI init until
R2D is running, and then extended that condition to wait for FCHG
init too. However, the dependencies of MMI upon R2D and FCHG don't
start until mmiInit(), and that call is driven by Switch_ON() code,
hence the wait for R2D and FCHG init can be made in that code path
instead of the MMI task. Furthermore, with our new way of signaling
PWON button boot to MMI, we need a new wait to ensure that the MMI
task is up - previously this assurance was provided by the wait for
Kp pointers to be set.
Solution: revert our previous PEI init hold-off additions to MMI,
add a new flag indicating MMI task init done, and put the combined
wait for all needed conditions into our new PWON button boot code
in power.c.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Tue, 27 Apr 2021 06:24:52 +0000 |
| parents | 4e78acac3d88 |
| children |
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/*************************************************************************/ /* */ /* Copyright Mentor Graphics Corporation 2002 */ /* All Rights Reserved. */ /* */ /* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */ /* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */ /* SUBJECT TO LICENSE TERMS. */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* FILE NAME VERSION */ /* */ /* quf.c Nucleus PLUS 1.14 */ /* */ /* COMPONENT */ /* */ /* QU - Queue Management */ /* */ /* DESCRIPTION */ /* */ /* This file contains routines to obtain facts about the Queue */ /* management component. */ /* */ /* DATA STRUCTURES */ /* */ /* None */ /* */ /* FUNCTIONS */ /* */ /* QUF_Established_Queues Number of created queues */ /* QUF_Queue_Information Retrieve queue information */ /* QUF_Queue_Pointers Build queue pointer list */ /* */ /* DEPENDENCIES */ /* */ /* cs_extr.h Common Service functions */ /* tc_extr.h Thread Control functions */ /* qu_extr.h Queue functions */ /* hi_extr.h History functions */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1994 Initial version of queue fact */ /* service file, version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* 04-17-1996 updated to version 1.2 */ /* 11-18-1996 Protected Informational service */ /* from NULL Control Block pointers */ /* creating 1.2a. (SPR220) */ /* 03-24-1998 Released version 1.3. */ /* 03-26-1999 Released 1.11m (new release */ /* numbering scheme) */ /* 04-17-2002 Released version 1.13m */ /* 11-07-2002 Released version 1.14 */ /*************************************************************************/ #define NU_SOURCE_FILE #include "cs_extr.h" /* Common service functions */ #include "tc_extr.h" /* Thread control functions */ #include "qu_extr.h" /* Queue functions */ #include "hi_extr.h" /* History functions */ /* Define external inner-component global data references. */ extern CS_NODE *QUD_Created_Queues_List; extern UNSIGNED QUD_Total_Queues; extern TC_PROTECT QUD_List_Protect; /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* QUF_Established_Queues */ /* */ /* DESCRIPTION */ /* */ /* This function returns the current number of established */ /* queues. Queues previously deleted are no longer considered */ /* established. */ /* */ /* CALLED BY */ /* */ /* Application */ /* */ /* CALLS */ /* */ /* [TCT_Check_Stack] Stack checking function */ /* */ /* INPUTS */ /* */ /* None */ /* */ /* OUTPUTS */ /* */ /* QUD_Total_Queues Number of established */ /* queues */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 03-01-1994 Modified function interface, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* */ /*************************************************************************/ UNSIGNED QUF_Established_Queues(VOID) { #ifdef NU_ENABLE_STACK_CHECK /* Call stack checking function to check for an overflow condition. */ TCT_Check_Stack(); #endif /* Return the number of established queues. */ return(QUD_Total_Queues); } /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* QUF_Queue_Pointers */ /* */ /* DESCRIPTION */ /* */ /* This function builds a list of queue pointers, starting at the */ /* specified location. The number of queue pointers placed in the */ /* list is equivalent to the total number of queues or the maximum */ /* number of pointers specified in the call. */ /* */ /* CALLED BY */ /* */ /* Application */ /* */ /* CALLS */ /* */ /* [TCT_Check_Stack] Stack checking function */ /* TCT_Protect Protect created list */ /* TCT_Unprotect Release protection */ /* */ /* INPUTS */ /* */ /* pointer_list Pointer to the list area */ /* maximum_pointers Maximum number of pointers */ /* */ /* OUTPUTS */ /* */ /* pointers Number of queue pointers */ /* placed in the list */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 08-09-1993 Corrected pointer retrieval */ /* loop, resulting in version 1.0a */ /* 08-09-1993 Verified version 1.0a */ /* 03-01-1994 Modified function interface, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* */ /*************************************************************************/ UNSIGNED QUF_Queue_Pointers(NU_QUEUE **pointer_list,UNSIGNED maximum_pointers) { CS_NODE *node_ptr; /* Pointer to each QCB */ UNSIGNED pointers; /* Number of pointers in list*/ NU_SUPERV_USER_VARIABLES /* Switch to supervisor mode */ NU_SUPERVISOR_MODE(); #ifdef NU_ENABLE_STACK_CHECK /* Call stack checking function to check for an overflow condition. */ TCT_Check_Stack(); #endif /* Initialize the number of pointers returned. */ pointers = 0; /* Protect against access to the list of created queues. */ TCT_Protect(&QUD_List_Protect); /* Loop until all queue pointers are in the list or until the maximum list size is reached. */ node_ptr = QUD_Created_Queues_List; while ((node_ptr) && (pointers < maximum_pointers)) { /* Place the node into the destination list. */ *pointer_list++ = (NU_QUEUE *) node_ptr; /* Increment the pointers variable. */ pointers++; /* Position the node pointer to the next node. */ node_ptr = node_ptr -> cs_next; /* Determine if the pointer is at the head of the list. */ if (node_ptr == QUD_Created_Queues_List) /* The list search is complete. */ node_ptr = NU_NULL; } /* Release protection against access to the list of created queues. */ TCT_Unprotect(); /* Return to user mode */ NU_USER_MODE(); /* Return the number of pointers in the list. */ return(pointers); } /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* QUF_Queue_Information */ /* */ /* DESCRIPTION */ /* */ /* This function returns information about the specified queue. */ /* However, if the supplied queue pointer is invalid, the */ /* function simply returns an error status. */ /* */ /* CALLED BY */ /* */ /* Application */ /* */ /* CALLS */ /* */ /* [TCT_Check_Stack] Stack checking function */ /* TCT_System_Protect Protect queue */ /* TCT_Unprotect Release protection */ /* */ /* INPUTS */ /* */ /* queue_ptr Pointer to the queue */ /* name Destination for the name */ /* start_address Destination for the start */ /* address of the queue */ /* queue_size Destination for queue size */ /* available Destination for available */ /* room in queue */ /* messages Destination for number of */ /* messages queued */ /* message_type Destination for message type */ /* message_size Destination for message size */ /* suspend_type Destination for suspension */ /* type */ /* tasks_waiting Destination for the tasks */ /* waiting count */ /* first_task Destination for the pointer */ /* to the first task waiting */ /* */ /* OUTPUTS */ /* */ /* NU_SUCCESS If a valid queue pointer */ /* is supplied */ /* NU_INVALID_QUEUE If queue pointer invalid */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 03-01-1994 Modified function interface, */ /* changed protection logic, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* 11-18-1996 Corrected SPR220. */ /* */ /*************************************************************************/ STATUS QUF_Queue_Information(NU_QUEUE *queue_ptr, CHAR *name, VOID **start_address, UNSIGNED *queue_size, UNSIGNED *available, UNSIGNED *messages, OPTION *message_type, UNSIGNED *message_size, OPTION *suspend_type, UNSIGNED *tasks_waiting, NU_TASK **first_task) { QU_QCB *queue; /* Queue control block ptr */ INT i; /* Working integer variable */ STATUS completion; /* Completion status */ NU_SUPERV_USER_VARIABLES /* Switch to supervisor mode */ NU_SUPERVISOR_MODE(); /* Move input queue pointer into internal pointer. */ queue = (QU_QCB *) queue_ptr; #ifdef NU_ENABLE_STACK_CHECK /* Call stack checking function to check for an overflow condition. */ TCT_Check_Stack(); #endif /* Determine if this queue id is valid. */ if ((queue != NU_NULL) && (queue -> qu_id == QU_QUEUE_ID)) { /* Setup protection of the queue. */ TCT_System_Protect(); /* The queue pointer is valid. Reflect this in the completion status and fill in the actual information. */ completion = NU_SUCCESS; /* Copy the queue's name. */ for (i = 0; i < NU_MAX_NAME; i++) *name++ = queue -> qu_name[i]; /* Determine the suspension type. */ if (queue -> qu_fifo_suspend) *suspend_type = NU_FIFO; else *suspend_type = NU_PRIORITY; /* Determine the message type. */ if (queue -> qu_fixed_size) *message_type = NU_FIXED_SIZE; else *message_type = NU_VARIABLE_SIZE; /* Get various information about the queue. */ *start_address = (UNSIGNED *) queue -> qu_start; *queue_size = queue -> qu_queue_size; *available = queue -> qu_available; *messages = queue -> qu_messages; *message_size = queue -> qu_message_size; /* Retrieve the number of tasks waiting and the pointer to the first task waiting. */ *tasks_waiting = queue -> qu_tasks_waiting; if (queue -> qu_suspension_list) /* There is a task waiting. */ *first_task = (NU_TASK *) (queue -> qu_suspension_list) -> qu_suspended_task; else /* There are no tasks waiting. */ *first_task = NU_NULL; /* Release protection of the queue. */ TCT_Unprotect(); } else /* Indicate that the queue pointer is invalid. */ completion = NU_INVALID_QUEUE; /* Return to user mode */ NU_USER_MODE(); /* Return the appropriate completion status. */ return(completion); }