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Release 6.1.6

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This commit is contained in:
Yuxin Zhou
2021-04-03 01:03:21 +00:00
parent 6ffaf848a0
commit b12bd44faa
388 changed files with 33113 additions and 1136 deletions
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117
ports/arc_em/metaware/src/tx_thread_schedule.s
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@@ -8,73 +8,67 @@
;/* and in the root directory of this software. */
;/* */
;/**************************************************************************/
;
;
;/**************************************************************************/
;/**************************************************************************/
;/** */
;/** ThreadX Component */
;/** */
;/** ThreadX Component */
;/** */
;/** Thread */
;/** */
;/**************************************************************************/
;/**************************************************************************/
;
;
;#define TX_SOURCE_CODE
;
;
.equ BTA, 0x412
.equ KSTACK_TOP, 0x264
.equ KSTACK_BASE, 0x265
.equ STATUS32_SC, 0x4000
;
;/* Include necessary system files. */
;
;#include "tx_api.h"
;#include "tx_thread.h"
;#include "tx_timer.h"
;
;
;/**************************************************************************/
;/* */
;/* FUNCTION RELEASE */
;/* */
;/**************************************************************************/
;/* */
;/* FUNCTION RELEASE */
;/* */
;/* _tx_thread_schedule ARCv2_EM/MetaWare */
;/* 6.1 */
;/* 6.1.6 */
;/* AUTHOR */
;/* */
;/* William E. Lamie, Microsoft Corporation */
;/* */
;/* DESCRIPTION */
;/* */
;/* This function waits for a thread control block pointer to appear in */
;/* the _tx_thread_execute_ptr variable. Once a thread pointer appears */
;/* in the variable, the corresponding thread is resumed. */
;/* */
;/* INPUT */
;/* */
;/* None */
;/* */
;/* OUTPUT */
;/* */
;/* */
;/* This function waits for a thread control block pointer to appear in */
;/* the _tx_thread_execute_ptr variable. Once a thread pointer appears */
;/* in the variable, the corresponding thread is resumed. */
;/* */
;/* INPUT */
;/* */
;/* None */
;/* */
;/* CALLS */
;/* */
;/* */
;/* OUTPUT */
;/* */
;/* None */
;/* */
;/* CALLED BY */
;/* */
;/* _tx_initialize_kernel_enter ThreadX entry function */
;/* _tx_thread_system_return Return to system from thread */
;/* _tx_thread_context_restore Restore thread's context */
;/* */
;/* RELEASE HISTORY */
;/* */
;/* */
;/* CALLS */
;/* */
;/* None */
;/* */
;/* CALLED BY */
;/* */
;/* _tx_initialize_kernel_enter ThreadX entry function */
;/* _tx_thread_system_return Return to system from thread */
;/* _tx_thread_context_restore Restore thread's context */
;/* */
;/* RELEASE HISTORY */
;/* */
;/* DATE NAME DESCRIPTION */
;/* */
;/* 09-30-2020 William E. Lamie Initial Version 6.1 */
;/* 04-02-2021 Andres Mlinar Modified comment(s), and */
;/* fixed interrupt priority */
;/* overwritting bug, and */
;/* fixed hardware stack checker*/
;/* disable and reenable logic, */
;/* resulting in version 6.1.6 */
;/* */
;/**************************************************************************/
;VOID _tx_thread_schedule(VOID)
@@ -85,8 +79,13 @@ _tx_thread_schedule:
;
; /* Enable interrupts. */
;
mov r0, 0x1F ; Build enable interrupt value
seti r0 ; Enable interrupts
seti 0 ; Enable interrupts without changing threshold level
.ifdef TX_ENABLE_HW_STACK_CHECKING
lr r2, [status32] ; Pickup current STATUS32
and r2, r2, ~STATUS32_SC ; Clear the hardware stack checking enable bit (SC)
kflag r2 ; Disable hardware stack checking
.endif
;
; /* Wait for a thread to execute. */
; do
@@ -99,7 +98,7 @@ __tx_thread_schedule_loop:
;
; }
; while(_tx_thread_execute_ptr == TX_NULL);
;
;
; /* Yes! We have a thread to execute. Lockout interrupts and
; transfer control to it. */
;
@@ -118,16 +117,6 @@ __tx_thread_schedule_loop:
ld r4, [r0, 24] ; Pickup time-slice for this thread
add r3, r3, 1 ; Increment run counter
st r3, [r0, 4] ; Store the new run counter
.ifdef TX_ENABLE_HW_STACK_CHECKING
lr r2, [status32] ; Pickup current STATUS32
and r2, r2, ~STATUS32_SC ; Clear the hardware stack checking enable bit (SC)
kflag r2 ; Disable hardware stack checking
ld r3, [r0, 12] ; Pickup the top of the thread's stack (lowest address)
sr r3, [KSTACK_TOP] ; Setup KSTACK_TOP
ld r3, [r0, 16] ; Pickup the base of the thread's stack (highest address)
sr r3, [KSTACK_BASE] ; Setup KSTACK_BASE
.endif
;
; /* Setup time-slice, if present. */
; _tx_timer_time_slice = _tx_thread_current_ptr -> tx_thread_time_slice;
@@ -135,6 +124,10 @@ __tx_thread_schedule_loop:
ld sp, [r0, 8] ; Switch to thread's stack
.ifdef TX_ENABLE_HW_STACK_CHECKING
ld r3, [r0, 12] ; Pickup the top of the thread's stack (lowest address)
sr r3, [KSTACK_TOP] ; Setup KSTACK_TOP
ld r3, [r0, 16] ; Pickup the base of the thread's stack (highest address)
sr r3, [KSTACK_BASE] ; Setup KSTACK_BASE
or r2, r2, STATUS32_SC ; Or in hardware stack checking enable bit (SC)
kflag r2 ; Enable hardware stack checking
.endif
@@ -176,8 +169,8 @@ __tx_thread_schedule_loop:
ld r13, [sp, 64] ; Recover r13
ld r1, [sp, 68] ; Pickup status32
ld r30, [sp, 72] ; Recover r30
add sp, sp, 76 ; Recover solicited stack frame
j_s.d [blink] ; Return to thread and restore flags
add sp, sp, 76 ; Recover solicited stack frame
j_s.d [blink] ; Return to thread and restore flags
seti r1 ; Recover STATUS32
;
__tx_thread_schedule_int_ret:
@@ -189,7 +182,7 @@ __tx_thread_schedule_int_ret:
sr r0, [LP_START] ; Restore LP_START
ld r1, [sp, 8] ; Recover LP_END
sr r1, [LP_END] ; Restore LP_END
ld r2, [sp, 12] ; Recover LP_COUNT
ld r2, [sp, 12] ; Recover LP_COUNT
mov LP_COUNT, r2
ld r0, [sp, 156] ; Pickup saved BTA
sr r0, [BTA] ; Recover BTA
@@ -230,7 +223,7 @@ __tx_thread_schedule_int_ret:
.endif
add sp, sp, 160 ; Recover interrupt stack frame
rtie ; Return to point of interrupt
;
;}
;