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New scheduling code in kernel. Work in progress.

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Round-robin within one priority queue works fine.
Ageing algorithm to be done.
This commit is contained in:
Jorrit Herder
2005-08-19 16:43:28 +00:00
parent d45066257c
commit a01645b788
18 changed files with 164 additions and 136 deletions
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25
kernel/table.c
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@@ -46,10 +46,10 @@
PUBLIC char *t_stack[TOT_STACK_SPACE / sizeof(char *)];
/* Define flags for the various process types. */
#define IDL_F (BILLABLE | SYS_PROC) /* idle task */
#define IDL_F (SYS_PROC | PREEMPTIBLE | BILLABLE) /* idle task */
#define TSK_F (SYS_PROC) /* kernel tasks */
#define SRV_F (BILLABLE | PREEMPTIBLE | SYS_PROC) /* system services */
#define USR_F (PREEMPTIBLE | BILLABLE) /* user processes */
#define SRV_F (SYS_PROC | PREEMPTIBLE) /* system services */
#define USR_F (BILLABLE | PREEMPTIBLE) /* user processes */
/* Define system call traps for the various process types. These call masks
* determine what system call traps a process is allowed to make.
@@ -83,7 +83,8 @@ PUBLIC char *t_stack[TOT_STACK_SPACE / sizeof(char *)];
#define FS_C (c(SYS_KILL) | c(SYS_VIRCOPY) | c(SYS_VIRVCOPY) | c(SYS_UMAP) \
| c(SYS_GETINFO) | c(SYS_EXIT) | c(SYS_TIMES) | c(SYS_SETALARM))
#define DRV_C (FS_C | c(SYS_SEGCTL) | c(SYS_IRQCTL) | c(SYS_INT86) \
| c(SYS_DEVIO) | c(SYS_VDEVIO) | c(SYS_SDEVIO) | c(SYS_PHYSCOPY) | c(SYS_PHYSVCOPY))
| c(SYS_DEVIO) | c(SYS_VDEVIO) | c(SYS_SDEVIO))
#define MEM_C (DRV_C | c(SYS_PHYSCOPY) | c(SYS_PHYSVCOPY))
/* The system image table lists all programs that are part of the boot image.
* The order of the entries here MUST agree with the order of the programs
@@ -94,15 +95,15 @@ PUBLIC char *t_stack[TOT_STACK_SPACE / sizeof(char *)];
*/
PUBLIC struct boot_image image[] = {
/* process nr, pc, flags, qs, queue, stack, traps, ipcto, call, name */
{ IDLE, idle_task, IDL_F, 32, IDLE_Q, IDL_S, 0, 0, 0, "IDLE" },
{ CLOCK,clock_task, TSK_F, 0, TASK_Q, TSK_S, TSK_T, 0, 0, "CLOCK" },
{ SYSTEM, sys_task, TSK_F, 0, TASK_Q, TSK_S, TSK_T, 0, 0, "SYSTEM"},
{ HARDWARE, 0, TSK_F, 0, TASK_Q, HRD_S, 0, 0, 0, "KERNEL"},
{ PM_PROC_NR, 0, SRV_F, 16, 3, 0, SRV_T, SRV_M, PM_C, "pm" },
{ FS_PROC_NR, 0, SRV_F, 16, 4, 0, SRV_T, SRV_M, FS_C, "fs" },
{ SM_PROC_NR, 0, SRV_F, 16, 3, 0, SRV_T, SYS_M, SM_C, "sm" },
{ IDLE, idle_task, IDL_F, 8, IDLE_Q, IDL_S, 0, 0, 0, "IDLE" },
{ CLOCK,clock_task, TSK_F, 64, TASK_Q, TSK_S, TSK_T, 0, 0, "CLOCK" },
{ SYSTEM, sys_task, TSK_F, 64, TASK_Q, TSK_S, TSK_T, 0, 0, "SYSTEM"},
{ HARDWARE, 0, TSK_F, 64, TASK_Q, HRD_S, 0, 0, 0, "KERNEL"},
{ PM_PROC_NR, 0, SRV_F, 32, 3, 0, SRV_T, SRV_M, PM_C, "pm" },
{ FS_PROC_NR, 0, SRV_F, 32, 4, 0, SRV_T, SRV_M, FS_C, "fs" },
{ SM_PROC_NR, 0, SRV_F, 32, 3, 0, SRV_T, SYS_M, SM_C, "sm" },
{ TTY_PROC_NR, 0, SRV_F, 16, 1, 0, SRV_T, SYS_M, DRV_C, "tty" },
{ MEM_PROC_NR, 0, SRV_F, 16, 2, 0, SRV_T, DRV_M, DRV_C, "memory"},
{ MEM_PROC_NR, 0, SRV_F, 16, 2, 0, SRV_T, DRV_M, MEM_C, "memory"},
{ LOG_PROC_NR, 0, SRV_F, 16, 2, 0, SRV_T, SYS_M, DRV_C, "log" },
{ DRVR_PROC_NR, 0, SRV_F, 16, 2, 0, SRV_T, SYS_M, DRV_C, "driver"},
{ INIT_PROC_NR, 0, USR_F, 8, USER_Q, 0, USR_T, USR_M, 0, "init" },