[PATCH v3 4/9] xen/arm: gic: set_type: Pass the type in parameter rather than in desc->arch.type

[Julien Grall <julien.grall@arm.com>]

A follow-up patch will not store the type in desc->arch.type. Also, the
callback prototype is more logical.

Signed-off-by: Julien Grall <julien.grall@arm.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>

---
    Changes in v3:
        - Add Stefano's reviewed-by

    Changes in v2:
        - gic_set_irq_type has been dropped by mistake in
        gic_route_irq_to_xen. Re-add it!
---
 xen/arch/arm/gic-v2.c     |  3 +--
 xen/arch/arm/gic-v3.c     |  3 +--
 xen/arch/arm/gic.c        | 10 +++++-----
 xen/include/asm-arm/gic.h |  4 ++--
 4 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/xen/arch/arm/gic-v2.c b/xen/arch/arm/gic-v2.c
index 69ed72d..9bd9d0b 100644
--- a/xen/arch/arm/gic-v2.c
+++ b/xen/arch/arm/gic-v2.c
@@ -236,11 +236,10 @@ static unsigned int gicv2_read_irq(void)
     return (readl_gicc(GICC_IAR) & GICC_IA_IRQ);
 }
 
-static void gicv2_set_irq_type(struct irq_desc *desc)
+static void gicv2_set_irq_type(struct irq_desc *desc, unsigned int type)
 {
     uint32_t cfg, actual, edgebit;
     unsigned int irq = desc->irq;
-    unsigned int type = desc->arch.type;
 
     spin_lock(&gicv2.lock);
     /* Set edge / level */
diff --git a/xen/arch/arm/gic-v3.c b/xen/arch/arm/gic-v3.c
index 781f25c..b8be395 100644
--- a/xen/arch/arm/gic-v3.c
+++ b/xen/arch/arm/gic-v3.c
@@ -471,12 +471,11 @@ static inline uint64_t gicv3_mpidr_to_affinity(int cpu)
              MPIDR_AFFINITY_LEVEL(mpidr, 0));
 }
 
-static void gicv3_set_irq_type(struct irq_desc *desc)
+static void gicv3_set_irq_type(struct irq_desc *desc, unsigned int type)
 {
     uint32_t cfg, actual, edgebit;
     void __iomem *base;
     unsigned int irq = desc->irq;
-    unsigned int type = desc->arch.type;
 
     /* SGI's are always edge-triggered not need to call GICD_ICFGR0 */
     ASSERT(irq >= NR_GIC_SGI);
diff --git a/xen/arch/arm/gic.c b/xen/arch/arm/gic.c
index c63c862..b9371a7 100644
--- a/xen/arch/arm/gic.c
+++ b/xen/arch/arm/gic.c
@@ -96,12 +96,12 @@ void gic_restore_state(struct vcpu *v)
     gic_restore_pending_irqs(v);
 }
 
-static void gic_set_irq_type(struct irq_desc *desc)
+static void gic_set_irq_type(struct irq_desc *desc, unsigned int type)
 {
     ASSERT(spin_is_locked(&desc->lock));
-    ASSERT(desc->arch.type != IRQ_TYPE_INVALID);
+    ASSERT(type != IRQ_TYPE_INVALID);
 
-    gic_hw_ops->set_irq_type(desc);
+    gic_hw_ops->set_irq_type(desc, type);
 }
 
 static void gic_set_irq_priority(struct irq_desc *desc, unsigned int priority)
@@ -121,7 +121,7 @@ void gic_route_irq_to_xen(struct irq_desc *desc, unsigned int priority)
 
     desc->handler = gic_hw_ops->gic_host_irq_type;
 
-    gic_set_irq_type(desc);
+    gic_set_irq_type(desc, desc->arch.type);
     gic_set_irq_priority(desc, priority);
 }
 
@@ -154,7 +154,7 @@ int gic_route_irq_to_guest(struct domain *d, unsigned int virq,
     desc->handler = gic_hw_ops->gic_guest_irq_type;
     set_bit(_IRQ_GUEST, &desc->status);
 
-    gic_set_irq_type(desc);
+    gic_set_irq_type(desc, desc->arch.type);
     gic_set_irq_priority(desc, priority);
 
     p->desc = desc;
diff --git a/xen/include/asm-arm/gic.h b/xen/include/asm-arm/gic.h
index 3f39f79..2214e87 100644
--- a/xen/include/asm-arm/gic.h
+++ b/xen/include/asm-arm/gic.h
@@ -328,8 +328,8 @@ struct gic_hw_operations {
     void (*deactivate_irq)(struct irq_desc *irqd);
     /* Read IRQ id and Ack */
     unsigned int (*read_irq)(void);
-    /* Set IRQ type - type is taken from desc->arch.type */
-    void (*set_irq_type)(struct irq_desc *desc);
+    /* Set IRQ type */
+    void (*set_irq_type)(struct irq_desc *desc, unsigned int type);
     /* Set IRQ priority */
     void (*set_irq_priority)(struct irq_desc *desc, unsigned int priority);
     /* Send SGI */
-- 
1.9.1


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