Changes between Version 12 and Version 13 of boot_loader

Timestamp:

Nov 5, 2014, 6:21:00 PM (10 years ago)

Author:

alain

Comment:

--

boot_loader

@@ -56 +56 @@
 This code is executed by all processors in parallel. All processors enter the same [source:soft/giet_vm/giet_kernel/kernel_init.c kernel_init()] function that makes the following actions:
 
- .1 : each processor get its scheduler virtual address from CP0_SCHED register and contributes to _schedulers[] array initialisation.
- .2 : each processor loops on all allocated tasks to build the _ptabs_vaddr[] & _ptabs_ptprs[] arrays from the tasks contexts.
- .3 : each processor computes and set the XCU masks, as specified in the HWI, PTI, and WTI interrupt vectors.
- .4 : each processor starts its TICK timer if it has at least at least one task allocated.
- .5 : each processor updates the idle_task context (CTX_SP, CTX_RA, CTX_EPC). 
- .6 : when all processors reach the synchronisation barrier, each processor set registers SP, SR, PTPR, EPC, with the values corresponding to the first allocated task, and jump to user code.
+ 1. each processor get its scheduler virtual address from CP0_SCHED register and contributes to _schedulers[] array initialisation.
+ 2. each processor loops on all allocated tasks to build the _ptabs_vaddr[] & _ptabs_ptprs[] arrays from the tasks contexts.
+ 3. each processor computes and set the XCU masks, as specified in the HWI, PTI, and WTI interrupt vectors.
+ 4. each processor starts its TICK timer if it has at least at least one task allocated.
+ 5. each processor updates the idle_task context (CTX_SP, CTX_RA, CTX_EPC). 
+ 6. when all processors reach the synchronisation barrier, each processor set registers SP, SR, PTPR, EPC, with the values corresponding to the first allocated task, and jump to user code.