FreeCalypso > hg > fc-tourmaline
view src/nucleus/hii.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 */ /* */ /* hii.c Nucleus PLUS 1.14 */ /* */ /* COMPONENT */ /* */ /* HI - History Management */ /* */ /* DESCRIPTION */ /* */ /* This file contains the initialization routine for the History */ /* Management component. */ /* */ /* DATA STRUCTURES */ /* */ /* None */ /* */ /* FUNCTIONS */ /* */ /* HII_Initialize History Management Initialize*/ /* */ /* DEPENDENCIES */ /* */ /* hi_defs.h History component constants */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 03-01-1994 Replaced void with VOID, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* 04-17-1996 updated to version 1.2 */ /* 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 "hi_defs.h" /* History constants */ #include "hi_extr.h" /* History interfaces */ /* Define external inner-component global data references. */ extern INT HID_History_Enable; extern INT HID_Write_Index; extern INT HID_Read_Index; extern INT HID_Entry_Count; extern TC_PROTECT HID_History_Protect; /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* HII_Initialize */ /* */ /* DESCRIPTION */ /* */ /* This function initializes the data structures that control the */ /* operation of the History component (HI). This routine must be */ /* called from Supervisor mode in Supervisor/User mode switching */ /* kernels. */ /* */ /* CALLED BY */ /* */ /* INC_Initialize System initialization */ /* */ /* CALLS */ /* */ /* None */ /* */ /* INPUTS */ /* */ /* None */ /* */ /* OUTPUTS */ /* */ /* HID_Current_Index Next available table index */ /* HID_Entry_Count Counter of entries in table */ /* HID_Table_Protect History table protection */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 03-01-1994 Replaced void with VOID, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* */ /*************************************************************************/ VOID HII_Initialize(VOID) { /* Initialize the history enable flag to false. */ HID_History_Enable = NU_FALSE; /* Initialize the starting indices to the first entry. */ HID_Write_Index = 0; HID_Read_Index = 0; /* Initialize the entry counter to 0. */ HID_Entry_Count = 0; /* Initialize the history protection structure. */ HID_History_Protect.tc_tcb_pointer = NU_NULL; }