7336303b7f
Where MCP = Maximum Controlled Priority This commit adds: * seL4_TCB_SetMCPriority and changes the arguments to * seL4_TCB_Configure As of this commit, a thread cannot create or set a threads priority (including itself) above its mcp. Previously the kernel did this check against a threads priority, which prevented a thread from setting it's own priority down and then up again.
69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
/*
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* Copyright 2014, General Dynamics C4 Systems
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*
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* This software may be distributed and modified according to the terms of
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* the GNU General Public License version 2. Note that NO WARRANTY is provided.
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* See "LICENSE_GPLv2.txt" for details.
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*
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* @TAG(GD_GPL)
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*/
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#ifndef __KERNEL_THREAD_H
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#define __KERNEL_THREAD_H
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#include <types.h>
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#include <util.h>
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#include <object/structures.h>
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#include <arch/machine.h>
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static inline CONST word_t
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ready_queues_index(word_t dom, word_t prio)
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{
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if (CONFIG_NUM_DOMAINS > 1) {
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return dom * CONFIG_NUM_PRIORITIES + prio;
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} else {
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assert(dom == 0);
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return prio;
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}
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}
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static inline CONST word_t
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prio_to_l1index(word_t prio)
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{
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return (prio >> wordRadix);
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}
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static inline CONST word_t
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l1index_to_prio(word_t l1index)
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{
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return (l1index << wordRadix);
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}
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void configureIdleThread(tcb_t *tcb);
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void activateThread(void) VISIBLE;
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void suspend(tcb_t *target);
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void restart(tcb_t *target);
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void doIPCTransfer(tcb_t *sender, endpoint_t *endpoint,
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word_t badge, bool_t grant, tcb_t *receiver);
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void doReplyTransfer(tcb_t *sender, tcb_t *receiver, cte_t *slot);
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void doNormalTransfer(tcb_t *sender, word_t *sendBuffer, endpoint_t *endpoint,
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word_t badge, bool_t canGrant, tcb_t *receiver,
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word_t *receiveBuffer);
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void doFaultTransfer(word_t badge, tcb_t *sender, tcb_t *receiver,
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word_t *receiverIPCBuffer);
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void doNBRecvFailedTransfer(tcb_t *thread);
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void schedule(void);
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void chooseThread(void);
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void switchToThread(tcb_t *thread) VISIBLE;
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void switchToIdleThread(void);
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void setDomain(tcb_t *tptr, dom_t dom);
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void setPriority(tcb_t *tptr, prio_t prio);
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void setMCPriority(tcb_t *tptr, prio_t mcp);
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void scheduleTCB(tcb_t *tptr);
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void attemptSwitchTo(tcb_t *tptr);
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void switchIfRequiredTo(tcb_t *tptr);
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void setThreadState(tcb_t *tptr, _thread_state_t ts) VISIBLE;
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void timerTick(void);
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void rescheduleRequired(void);
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#endif
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