summaryrefslogtreecommitdiffstats
path: root/include/asm-mips/smtc_ipi.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-mips/smtc_ipi.h')
-rw-r--r--include/asm-mips/smtc_ipi.h128
1 files changed, 0 insertions, 128 deletions
diff --git a/include/asm-mips/smtc_ipi.h b/include/asm-mips/smtc_ipi.h
deleted file mode 100644
index 8ce5175..0000000
--- a/include/asm-mips/smtc_ipi.h
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * Definitions used in MIPS MT SMTC "Interprocessor Interrupt" code.
- */
-#ifndef __ASM_SMTC_IPI_H
-#define __ASM_SMTC_IPI_H
-
-#include <linux/spinlock.h>
-
-//#define SMTC_IPI_DEBUG
-
-#ifdef SMTC_IPI_DEBUG
-#include <asm/mipsregs.h>
-#include <asm/mipsmtregs.h>
-#endif /* SMTC_IPI_DEBUG */
-
-/*
- * An IPI "message"
- */
-
-struct smtc_ipi {
- struct smtc_ipi *flink;
- int type;
- void *arg;
- int dest;
-#ifdef SMTC_IPI_DEBUG
- int sender;
- long stamp;
-#endif /* SMTC_IPI_DEBUG */
-};
-
-/*
- * Defined IPI Types
- */
-
-#define LINUX_SMP_IPI 1
-#define SMTC_CLOCK_TICK 2
-#define IRQ_AFFINITY_IPI 3
-
-/*
- * A queue of IPI messages
- */
-
-struct smtc_ipi_q {
- struct smtc_ipi *head;
- spinlock_t lock;
- struct smtc_ipi *tail;
- int depth;
-};
-
-static inline void smtc_ipi_nq(struct smtc_ipi_q *q, struct smtc_ipi *p)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&q->lock, flags);
- if (q->head == NULL)
- q->head = q->tail = p;
- else
- q->tail->flink = p;
- p->flink = NULL;
- q->tail = p;
- q->depth++;
-#ifdef SMTC_IPI_DEBUG
- p->sender = read_c0_tcbind();
- p->stamp = read_c0_count();
-#endif /* SMTC_IPI_DEBUG */
- spin_unlock_irqrestore(&q->lock, flags);
-}
-
-static inline struct smtc_ipi *__smtc_ipi_dq(struct smtc_ipi_q *q)
-{
- struct smtc_ipi *p;
-
- if (q->head == NULL)
- p = NULL;
- else {
- p = q->head;
- q->head = q->head->flink;
- q->depth--;
- /* Arguably unnecessary, but leaves queue cleaner */
- if (q->head == NULL)
- q->tail = NULL;
- }
-
- return p;
-}
-
-static inline struct smtc_ipi *smtc_ipi_dq(struct smtc_ipi_q *q)
-{
- unsigned long flags;
- struct smtc_ipi *p;
-
- spin_lock_irqsave(&q->lock, flags);
- p = __smtc_ipi_dq(q);
- spin_unlock_irqrestore(&q->lock, flags);
-
- return p;
-}
-
-static inline void smtc_ipi_req(struct smtc_ipi_q *q, struct smtc_ipi *p)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&q->lock, flags);
- if (q->head == NULL) {
- q->head = q->tail = p;
- p->flink = NULL;
- } else {
- p->flink = q->head;
- q->head = p;
- }
- q->depth++;
- spin_unlock_irqrestore(&q->lock, flags);
-}
-
-static inline int smtc_ipi_qdepth(struct smtc_ipi_q *q)
-{
- unsigned long flags;
- int retval;
-
- spin_lock_irqsave(&q->lock, flags);
- retval = q->depth;
- spin_unlock_irqrestore(&q->lock, flags);
- return retval;
-}
-
-extern void smtc_send_ipi(int cpu, int type, unsigned int action);
-
-#endif /* __ASM_SMTC_IPI_H */
OpenPOWER on IntegriCloud