mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-06-28 08:16:54 +00:00
hv: pirq: clean up unnecessary fields of irq_desc
This commit cleans up fiels of struct irq_desc: - remove name, irq_desc_state, irq_cnt and irq_lost_cnt which are not used. - remove irq_ prefix of irq_lock field of struct irq_desc; - change enum irq_state to enum irq_use_state; Signed-off-by: Yan, Like <like.yan@intel.com> Reviewed-by: Li, Fei <fei1.li@intel.com> Acked-by: Anthony Xu <anthony.xu@intel.com>
This commit is contained in:
Yan, Like
lijinxia
parent
bdcc3aef22
commit
f77d885d7e
@ -27,7 +27,7 @@ static void init_irq_desc(void)
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for (i = 0U; i < NR_IRQS; i++) {
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irq_desc_array[i].irq = i;
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irq_desc_array[i].vector = VECTOR_INVALID;
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spinlock_init(&irq_desc_array[i].irq_lock);
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spinlock_init(&irq_desc_array[i].lock);
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}
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for (i = 0U; i <= NR_MAX_VECTOR; i++) {
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@ -75,11 +75,11 @@ uint32_t irq_mark_used(uint32_t irq)
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}
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desc = &irq_desc_array[irq];
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spinlock_irqsave_obtain(&desc->irq_lock, &rflags);
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spinlock_irqsave_obtain(&desc->lock, &rflags);
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if (desc->used == IRQ_NOT_ASSIGNED) {
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desc->used = IRQ_ASSIGNED;
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}
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spinlock_irqrestore_release(&desc->irq_lock, rflags);
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spinlock_irqrestore_release(&desc->lock, rflags);
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return irq;
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}
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@ -96,18 +96,18 @@ static uint32_t alloc_irq(void)
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for (i = irq_gsi_num(); i < NR_IRQS; i++) {
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desc = &irq_desc_array[i];
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spinlock_irqsave_obtain(&desc->irq_lock, &rflags);
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spinlock_irqsave_obtain(&desc->lock, &rflags);
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if (desc->used == IRQ_NOT_ASSIGNED) {
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desc->used = IRQ_ASSIGNED;
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spinlock_irqrestore_release(&desc->irq_lock, rflags);
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spinlock_irqrestore_release(&desc->lock, rflags);
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break;
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}
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spinlock_irqrestore_release(&desc->irq_lock, rflags);
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spinlock_irqrestore_release(&desc->lock, rflags);
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}
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return (i == NR_IRQS) ? IRQ_INVALID : i;
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}
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/* need irq_lock protection before use */
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/* need lock protection before use */
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static void local_irq_desc_set_vector(uint32_t irq, uint32_t vr)
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{
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struct irq_desc *desc;
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@ -124,13 +124,13 @@ static void irq_desc_set_vector(uint32_t irq, uint32_t vr)
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struct irq_desc *desc;
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desc = &irq_desc_array[irq];
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spinlock_irqsave_obtain(&desc->irq_lock, &rflags);
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spinlock_irqsave_obtain(&desc->lock, &rflags);
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vector_to_irq[vr] = irq;
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desc->vector = vr;
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spinlock_irqrestore_release(&desc->irq_lock, rflags);
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spinlock_irqrestore_release(&desc->lock, rflags);
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}
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/* used with holding irq_lock outside */
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/* used with holding lock outside */
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static void _irq_desc_free_vector(uint32_t irq)
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{
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struct irq_desc *desc;
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@ -145,7 +145,6 @@ static void _irq_desc_free_vector(uint32_t irq)
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vr = desc->vector;
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desc->used = IRQ_NOT_ASSIGNED;
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desc->state = IRQ_DESC_PENDING;
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desc->vector = VECTOR_INVALID;
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vr &= NR_MAX_VECTOR;
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@ -166,8 +165,7 @@ static void disable_pic_irq(void)
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int32_t request_irq(uint32_t irq_arg,
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irq_action_t action_fn,
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void *priv_data,
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const char *name)
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void *priv_data)
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{
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struct irq_desc *desc;
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uint32_t irq = irq_arg, vector;
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@ -235,25 +233,20 @@ int32_t request_irq(uint32_t irq_arg,
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}
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if (desc->action == NULL) {
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spinlock_irqsave_obtain(&desc->irq_lock, &rflags);
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spinlock_irqsave_obtain(&desc->lock, &rflags);
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desc->priv_data = priv_data;
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desc->action = action_fn;
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/* we are okay using strcpy_s here even with spinlock
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* since no #PG in HV right now
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*/
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(void)strcpy_s(desc->name, 32U, name);
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spinlock_irqrestore_release(&desc->irq_lock, rflags);
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spinlock_irqrestore_release(&desc->lock, rflags);
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} else {
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pr_err("%s: request irq(%u) vr(%u) for %s failed,\
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pr_err("%s: request irq(%u) vr(%u) failed,\
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already requested", __func__,
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irq, irq_to_vector(irq), name);
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irq, irq_to_vector(irq));
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return -EBUSY;
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}
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dev_dbg(ACRN_DBG_IRQ, "[%s] %s irq%d vr:0x%x",
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__func__, desc->name, irq, desc->vector);
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dev_dbg(ACRN_DBG_IRQ, "[%s] irq%d vr:0x%x",
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__func__, irq, desc->vector);
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return (int32_t)irq;
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}
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@ -272,7 +265,7 @@ uint32_t irq_desc_alloc_vector(uint32_t irq)
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}
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desc = &irq_desc_array[irq];
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spinlock_irqsave_obtain(&desc->irq_lock, &rflags);
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spinlock_irqsave_obtain(&desc->lock, &rflags);
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if (desc->vector != VECTOR_INVALID) {
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/* already allocated a vector */
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goto OUT;
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@ -286,7 +279,7 @@ uint32_t irq_desc_alloc_vector(uint32_t irq)
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}
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local_irq_desc_set_vector(irq, vr);
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OUT:
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spinlock_irqrestore_release(&desc->irq_lock, rflags);
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spinlock_irqrestore_release(&desc->lock, rflags);
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return vr;
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}
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@ -301,12 +294,12 @@ void irq_desc_try_free_vector(uint32_t irq)
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}
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desc = &irq_desc_array[irq];
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spinlock_irqsave_obtain(&desc->irq_lock, &rflags);
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spinlock_irqsave_obtain(&desc->lock, &rflags);
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if (desc->action == NULL) {
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_irq_desc_free_vector(irq);
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}
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spinlock_irqrestore_release(&desc->irq_lock, rflags);
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spinlock_irqrestore_release(&desc->lock, rflags);
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}
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@ -421,18 +414,7 @@ int handle_level_interrupt_common(struct irq_desc *desc,
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uint64_t rflags;
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irq_action_t action = desc->action;
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/*
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* give other Core a try to return without hold irq_lock
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* and record irq_lost count here
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*/
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if (desc->state != IRQ_DESC_PENDING) {
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send_lapic_eoi();
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desc->irq_lost_cnt++;
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return 0;
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}
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spinlock_irqsave_obtain(&desc->irq_lock, &rflags);
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desc->state = IRQ_DESC_IN_PROCESS;
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spinlock_irqsave_obtain(&desc->lock, &rflags);
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/* mask iopaic pin */
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if (irq_is_gsi(desc->irq)) {
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@ -450,8 +432,7 @@ int handle_level_interrupt_common(struct irq_desc *desc,
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GSI_UNMASK_IRQ(desc->irq);
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}
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desc->state = IRQ_DESC_PENDING;
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spinlock_irqrestore_release(&desc->irq_lock, rflags);
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spinlock_irqrestore_release(&desc->lock, rflags);
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return 0;
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}
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@ -461,18 +442,7 @@ int common_handler_edge(struct irq_desc *desc, __unused void *handler_data)
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uint64_t rflags;
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irq_action_t action = desc->action;
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/*
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* give other Core a try to return without hold irq_lock
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* and record irq_lost count here
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*/
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if (desc->state != IRQ_DESC_PENDING) {
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send_lapic_eoi();
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desc->irq_lost_cnt++;
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return 0;
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}
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spinlock_irqsave_obtain(&desc->irq_lock, &rflags);
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desc->state = IRQ_DESC_IN_PROCESS;
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spinlock_irqsave_obtain(&desc->lock, &rflags);
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/* Send EOI to LAPIC/IOAPIC IRR */
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send_lapic_eoi();
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@ -481,8 +451,7 @@ int common_handler_edge(struct irq_desc *desc, __unused void *handler_data)
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action(desc->irq, desc->priv_data);
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}
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desc->state = IRQ_DESC_PENDING;
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spinlock_irqrestore_release(&desc->irq_lock, rflags);
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spinlock_irqrestore_release(&desc->lock, rflags);
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return 0;
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}
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@ -492,18 +461,7 @@ int common_dev_handler_level(struct irq_desc *desc, __unused void *handler_data)
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uint64_t rflags;
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irq_action_t action = desc->action;
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/*
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* give other Core a try to return without hold irq_lock
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* and record irq_lost count here
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*/
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if (desc->state != IRQ_DESC_PENDING) {
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send_lapic_eoi();
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desc->irq_lost_cnt++;
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return 0;
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}
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spinlock_irqsave_obtain(&desc->irq_lock, &rflags);
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desc->state = IRQ_DESC_IN_PROCESS;
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spinlock_irqsave_obtain(&desc->lock, &rflags);
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/* mask iopaic pin */
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if (irq_is_gsi(desc->irq)) {
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@ -517,14 +475,13 @@ int common_dev_handler_level(struct irq_desc *desc, __unused void *handler_data)
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action(desc->irq, desc->priv_data);
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}
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desc->state = IRQ_DESC_PENDING;
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spinlock_irqrestore_release(&desc->irq_lock, rflags);
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spinlock_irqrestore_release(&desc->lock, rflags);
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/* we did not unmask irq until guest EOI the vector */
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return 0;
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}
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/* no desc->irq_lock for quick handling local interrupt like lapic timer */
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/* no desc->lock for quick handling local interrupt like lapic timer */
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int quick_handler_nolock(struct irq_desc *desc, __unused void *handler_data)
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{
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irq_action_t action = desc->action;
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@ -549,9 +506,9 @@ void update_irq_handler(uint32_t irq, irq_handler_t func)
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}
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desc = &irq_desc_array[irq];
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spinlock_irqsave_obtain(&desc->irq_lock, &rflags);
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spinlock_irqsave_obtain(&desc->lock, &rflags);
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desc->irq_handler = func;
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spinlock_irqrestore_release(&desc->irq_lock, rflags);
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spinlock_irqrestore_release(&desc->lock, rflags);
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}
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void free_irq(uint32_t irq)
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@ -564,16 +521,15 @@ void free_irq(uint32_t irq)
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}
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desc = &irq_desc_array[irq];
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dev_dbg(ACRN_DBG_IRQ, "[%s] %s irq%d vr:0x%x",
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__func__, desc->name, irq, irq_to_vector(irq));
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dev_dbg(ACRN_DBG_IRQ, "[%s] irq%d vr:0x%x",
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__func__, irq, irq_to_vector(irq));
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spinlock_irqsave_obtain(&desc->irq_lock, &rflags);
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spinlock_irqsave_obtain(&desc->lock, &rflags);
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desc->action = NULL;
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desc->priv_data = NULL;
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memset(desc->name, '\0', 32U);
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spinlock_irqrestore_release(&desc->irq_lock, rflags);
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spinlock_irqrestore_release(&desc->lock, rflags);
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irq_desc_try_free_vector(desc->irq);
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}
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@ -594,9 +550,6 @@ void get_cpu_interrupt_info(char *str_arg, int str_max)
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size -= len;
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str += len;
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}
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len = snprintf(str, size, "\tLOST");
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size -= len;
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str += len;
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for (irq = 0U; irq < NR_IRQS; irq++) {
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desc = &irq_desc_array[irq];
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@ -612,9 +565,6 @@ void get_cpu_interrupt_info(char *str_arg, int str_max)
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size -= len;
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str += len;
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}
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len = snprintf(str, size, "\t%d", desc->irq_lost_cnt);
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size -= len;
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str += len;
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}
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}
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snprintf(str, size, "\r\n");
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@ -55,8 +55,7 @@ void smp_call_function(uint64_t mask, smp_call_func_t func, void *data)
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wait_sync_change(&smp_call_mask, 0UL);
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}
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static int request_notification_irq(irq_action_t func, void *data,
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const char *name)
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static int request_notification_irq(irq_action_t func, void *data)
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{
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int32_t retval;
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@ -67,7 +66,7 @@ static int request_notification_irq(irq_action_t func, void *data,
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}
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/* all cpu register the same notification vector */
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retval = request_irq(NOTIFY_IRQ, func, data, name);
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retval = request_irq(NOTIFY_IRQ, func, data);
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if (retval < 0) {
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pr_err("Failed to add notify isr");
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return -ENODEV;
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@ -80,17 +79,14 @@ static int request_notification_irq(irq_action_t func, void *data,
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void setup_notification(void)
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{
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uint16_t cpu;
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char name[32] = {0};
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uint16_t cpu = get_cpu_id();
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cpu = get_cpu_id();
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if (cpu > 0U) {
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return;
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}
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/* support IPI notification, VM0 will register all CPU */
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snprintf(name, 32, "NOTIFY_ISR%d", cpu);
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if (request_notification_irq(kick_notification, NULL, name) < 0) {
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if (request_notification_irq(kick_notification, NULL) < 0) {
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pr_err("Failed to setup notification");
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return;
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}
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@ -107,11 +107,11 @@ void del_timer(struct hv_timer *timer)
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}
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}
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static int request_timer_irq(irq_action_t func, const char *name)
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static int request_timer_irq(irq_action_t func)
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{
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int32_t retval;
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retval = request_irq(TIMER_IRQ, func, NULL, name);
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retval = request_irq(TIMER_IRQ, func, NULL);
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if (retval >= 0) {
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update_irq_handler(TIMER_IRQ, quick_handler_nolock);
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} else {
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@ -185,16 +185,14 @@ static void timer_softirq(uint16_t pcpu_id)
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void timer_init(void)
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{
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char name[32] = {0};
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uint16_t pcpu_id = get_cpu_id();
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init_percpu_timer(pcpu_id);
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snprintf(name, 32, "timer_tick[%hu]", pcpu_id);
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if (pcpu_id == BOOT_CPU_ID) {
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register_softirq(SOFTIRQ_TIMER, timer_softirq);
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if (request_timer_irq((irq_action_t)tsc_deadline_handler, name)
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if (request_timer_irq((irq_action_t)tsc_deadline_handler)
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< 0) {
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pr_err("Timer setup failed");
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return;
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@ -828,8 +828,7 @@ static int dmar_setup_interrupt(struct dmar_drhd_rt *dmar_uint)
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retval = request_irq(IRQ_INVALID,
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dmar_fault_handler,
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dmar_uint,
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"dmar_fault_event");
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dmar_uint);
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if (retval < 0 ) {
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pr_err("%s: fail to setup interrupt", __func__);
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@ -136,7 +136,7 @@ ptdev_activate_entry(struct ptdev_remapping_info *entry, uint32_t phys_irq)
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/* register and allocate host vector/irq */
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retval = request_irq(phys_irq, ptdev_interrupt_handler,
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(void *)entry, "dev assign");
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(void *)entry);
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ASSERT(retval >= 0, "dev register failed");
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entry->allocated_pirq = (uint32_t)retval;
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@ -13,34 +13,25 @@ enum irq_mode {
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IRQ_DEASSERT,
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};
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enum irq_state {
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enum irq_use_state {
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IRQ_NOT_ASSIGNED = 0,
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IRQ_ASSIGNED,
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};
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enum irq_desc_state {
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IRQ_DESC_PENDING,
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IRQ_DESC_IN_PROCESS,
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};
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typedef int (*irq_action_t)(uint32_t irq, void *priv_data);
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/* any field change in below required irq_lock protection with irqsave */
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struct irq_desc {
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uint32_t irq; /* index to irq_desc_base */
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enum irq_state used; /* this irq have assigned to device */
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enum irq_desc_state state; /* irq_desc status */
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enum irq_use_state used; /* this irq have assigned to device */
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uint32_t vector; /* assigned vector */
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int (*irq_handler)(struct irq_desc *irq_desc, void *handler_data);
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/* callback for irq flow handling */
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irq_action_t action; /* callback registered from component */
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void *priv_data; /* irq_action private data */
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char name[32]; /* name of component */
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spinlock_t irq_lock;
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uint64_t *irq_cnt; /* this irq cnt happened on CPUs */
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uint64_t irq_lost_cnt;
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spinlock_t lock;
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};
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uint32_t irq_mark_used(uint32_t irq);
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@ -52,8 +43,7 @@ uint32_t irq_to_vector(uint32_t irq);
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int32_t request_irq(uint32_t irq,
|
||||
irq_action_t action_fn,
|
||||
void *priv_data,
|
||||
const char *name);
|
||||
void *priv_data);
|
||||
|
||||
void free_irq(uint32_t irq);
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user