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KVM: arm/arm64: vgic-its: rename itte into ite

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The actual abbreviation for the interrupt translation table entry
is ITE. Let's rename all itte instances by ite.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Christoffer Dall <cdall@linaro.org>
This commit is contained in:
Eric Auger 2017-02-08 06:09:29 +01:00 committed by Christoffer Dall
parent 100e62983e
commit 9ce91c7234
1 changed files with 74 additions and 74 deletions
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148
virt/kvm/arm/vgic/vgic-its.c
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@ -114,8 +114,8 @@ struct its_collection {
#define its_is_collection_mapped(coll) ((coll) && \ #define its_is_collection_mapped(coll) ((coll) && \
((coll)->target_addr != COLLECTION_NOT_MAPPED)) ((coll)->target_addr != COLLECTION_NOT_MAPPED))
struct its_itte { struct its_ite {
struct list_head itte_list; struct list_head ite_list;
struct vgic_irq *irq; struct vgic_irq *irq;
struct its_collection *collection; struct its_collection *collection;
@ -143,27 +143,27 @@ static struct its_device *find_its_device(struct vgic_its *its, u32 device_id)
* Device ID/Event ID pair on an ITS. * Device ID/Event ID pair on an ITS.
* Must be called with the its_lock mutex held. * Must be called with the its_lock mutex held.
*/ */
static struct its_itte *find_itte(struct vgic_its *its, u32 device_id, static struct its_ite *find_ite(struct vgic_its *its, u32 device_id,
u32 event_id) u32 event_id)
{ {
struct its_device *device; struct its_device *device;
struct its_itte *itte; struct its_ite *ite;
device = find_its_device(its, device_id); device = find_its_device(its, device_id);
if (device == NULL) if (device == NULL)
return NULL; return NULL;
list_for_each_entry(itte, &device->itt_head, itte_list) list_for_each_entry(ite, &device->itt_head, ite_list)
if (itte->event_id == event_id) if (ite->event_id == event_id)
return itte; return ite;
return NULL; return NULL;
} }
/* To be used as an iterator this macro misses the enclosing parentheses */ /* To be used as an iterator this macro misses the enclosing parentheses */
#define for_each_lpi_its(dev, itte, its) \ #define for_each_lpi_its(dev, ite, its) \
list_for_each_entry(dev, &(its)->device_list, dev_list) \ list_for_each_entry(dev, &(its)->device_list, dev_list) \
list_for_each_entry(itte, &(dev)->itt_head, itte_list) list_for_each_entry(ite, &(dev)->itt_head, ite_list)
/* /*
* We only implement 48 bits of PA at the moment, although the ITS * We only implement 48 bits of PA at the moment, although the ITS
@ -270,18 +270,18 @@ static int vgic_copy_lpi_list(struct kvm *kvm, u32 **intid_ptr)
* Needs to be called whenever either the collection for a LPIs has * Needs to be called whenever either the collection for a LPIs has
* changed or the collection itself got retargeted. * changed or the collection itself got retargeted.
*/ */
static void update_affinity_itte(struct kvm *kvm, struct its_itte *itte) static void update_affinity_ite(struct kvm *kvm, struct its_ite *ite)
{ {
struct kvm_vcpu *vcpu; struct kvm_vcpu *vcpu;
if (!its_is_collection_mapped(itte->collection)) if (!its_is_collection_mapped(ite->collection))
return; return;
vcpu = kvm_get_vcpu(kvm, itte->collection->target_addr); vcpu = kvm_get_vcpu(kvm, ite->collection->target_addr);
spin_lock(&itte->irq->irq_lock); spin_lock(&ite->irq->irq_lock);
itte->irq->target_vcpu = vcpu; ite->irq->target_vcpu = vcpu;
spin_unlock(&itte->irq->irq_lock); spin_unlock(&ite->irq->irq_lock);
} }
/* /*
@ -292,13 +292,13 @@ static void update_affinity_collection(struct kvm *kvm, struct vgic_its *its,
struct its_collection *coll) struct its_collection *coll)
{ {
struct its_device *device; struct its_device *device;
struct its_itte *itte; struct its_ite *ite;
for_each_lpi_its(device, itte, its) { for_each_lpi_its(device, ite, its) {
if (!itte->collection || coll != itte->collection) if (!ite->collection || coll != ite->collection)
continue; continue;
update_affinity_itte(kvm, itte); update_affinity_ite(kvm, ite);
} }
} }
@ -425,25 +425,25 @@ static int vgic_its_trigger_msi(struct kvm *kvm, struct vgic_its *its,
u32 devid, u32 eventid) u32 devid, u32 eventid)
{ {
struct kvm_vcpu *vcpu; struct kvm_vcpu *vcpu;
struct its_itte *itte; struct its_ite *ite;
if (!its->enabled) if (!its->enabled)
return -EBUSY; return -EBUSY;
itte = find_itte(its, devid, eventid); ite = find_ite(its, devid, eventid);
if (!itte || !its_is_collection_mapped(itte->collection)) if (!ite || !its_is_collection_mapped(ite->collection))
return E_ITS_INT_UNMAPPED_INTERRUPT; return E_ITS_INT_UNMAPPED_INTERRUPT;
vcpu = kvm_get_vcpu(kvm, itte->collection->target_addr); vcpu = kvm_get_vcpu(kvm, ite->collection->target_addr);
if (!vcpu) if (!vcpu)
return E_ITS_INT_UNMAPPED_INTERRUPT; return E_ITS_INT_UNMAPPED_INTERRUPT;
if (!vcpu->arch.vgic_cpu.lpis_enabled) if (!vcpu->arch.vgic_cpu.lpis_enabled)
return -EBUSY; return -EBUSY;
spin_lock(&itte->irq->irq_lock); spin_lock(&ite->irq->irq_lock);
itte->irq->pending_latch = true; ite->irq->pending_latch = true;
vgic_queue_irq_unlock(kvm, itte->irq); vgic_queue_irq_unlock(kvm, ite->irq);
return 0; return 0;
} }
@ -511,15 +511,15 @@ int vgic_its_inject_msi(struct kvm *kvm, struct kvm_msi *msi)
} }
/* Requires the its_lock to be held. */ /* Requires the its_lock to be held. */
static void its_free_itte(struct kvm *kvm, struct its_itte *itte) static void its_free_ite(struct kvm *kvm, struct its_ite *ite)
{ {
list_del(&itte->itte_list); list_del(&ite->ite_list);
/* This put matches the get in vgic_add_lpi. */ /* This put matches the get in vgic_add_lpi. */
if (itte->irq) if (ite->irq)
vgic_put_irq(kvm, itte->irq); vgic_put_irq(kvm, ite->irq);
kfree(itte); kfree(ite);
} }
static u64 its_cmd_mask_field(u64 *its_cmd, int word, int shift, int size) static u64 its_cmd_mask_field(u64 *its_cmd, int word, int shift, int size)
@ -544,17 +544,17 @@ static int vgic_its_cmd_handle_discard(struct kvm *kvm, struct vgic_its *its,
{ {
u32 device_id = its_cmd_get_deviceid(its_cmd); u32 device_id = its_cmd_get_deviceid(its_cmd);
u32 event_id = its_cmd_get_id(its_cmd); u32 event_id = its_cmd_get_id(its_cmd);
struct its_itte *itte; struct its_ite *ite;
itte = find_itte(its, device_id, event_id); ite = find_ite(its, device_id, event_id);
if (itte && itte->collection) { if (ite && ite->collection) {
/* /*
* Though the spec talks about removing the pending state, we * Though the spec talks about removing the pending state, we
* don't bother here since we clear the ITTE anyway and the * don't bother here since we clear the ITTE anyway and the
* pending state is a property of the ITTE struct. * pending state is a property of the ITTE struct.
*/ */
its_free_itte(kvm, itte); its_free_ite(kvm, ite);
return 0; return 0;
} }
@ -572,26 +572,26 @@ static int vgic_its_cmd_handle_movi(struct kvm *kvm, struct vgic_its *its,
u32 event_id = its_cmd_get_id(its_cmd); u32 event_id = its_cmd_get_id(its_cmd);
u32 coll_id = its_cmd_get_collection(its_cmd); u32 coll_id = its_cmd_get_collection(its_cmd);
struct kvm_vcpu *vcpu; struct kvm_vcpu *vcpu;
struct its_itte *itte; struct its_ite *ite;
struct its_collection *collection; struct its_collection *collection;
itte = find_itte(its, device_id, event_id); ite = find_ite(its, device_id, event_id);
if (!itte) if (!ite)
return E_ITS_MOVI_UNMAPPED_INTERRUPT; return E_ITS_MOVI_UNMAPPED_INTERRUPT;
if (!its_is_collection_mapped(itte->collection)) if (!its_is_collection_mapped(ite->collection))
return E_ITS_MOVI_UNMAPPED_COLLECTION; return E_ITS_MOVI_UNMAPPED_COLLECTION;
collection = find_collection(its, coll_id); collection = find_collection(its, coll_id);
if (!its_is_collection_mapped(collection)) if (!its_is_collection_mapped(collection))
return E_ITS_MOVI_UNMAPPED_COLLECTION; return E_ITS_MOVI_UNMAPPED_COLLECTION;
itte->collection = collection; ite->collection = collection;
vcpu = kvm_get_vcpu(kvm, collection->target_addr); vcpu = kvm_get_vcpu(kvm, collection->target_addr);
spin_lock(&itte->irq->irq_lock); spin_lock(&ite->irq->irq_lock);
itte->irq->target_vcpu = vcpu; ite->irq->target_vcpu = vcpu;
spin_unlock(&itte->irq->irq_lock); spin_unlock(&ite->irq->irq_lock);
return 0; return 0;
} }
@ -679,7 +679,7 @@ static void vgic_its_free_collection(struct vgic_its *its, u32 coll_id)
{ {
struct its_collection *collection; struct its_collection *collection;
struct its_device *device; struct its_device *device;
struct its_itte *itte; struct its_ite *ite;
/* /*
* Clearing the mapping for that collection ID removes the * Clearing the mapping for that collection ID removes the
@ -690,10 +690,10 @@ static void vgic_its_free_collection(struct vgic_its *its, u32 coll_id)
if (!collection) if (!collection)
return; return;
for_each_lpi_its(device, itte, its) for_each_lpi_its(device, ite, its)
if (itte->collection && if (ite->collection &&
itte->collection->collection_id == coll_id) ite->collection->collection_id == coll_id)
itte->collection = NULL; ite->collection = NULL;
list_del(&collection->coll_list); list_del(&collection->coll_list);
kfree(collection); kfree(collection);
@ -709,7 +709,7 @@ static int vgic_its_cmd_handle_mapi(struct kvm *kvm, struct vgic_its *its,
u32 device_id = its_cmd_get_deviceid(its_cmd); u32 device_id = its_cmd_get_deviceid(its_cmd);
u32 event_id = its_cmd_get_id(its_cmd); u32 event_id = its_cmd_get_id(its_cmd);
u32 coll_id = its_cmd_get_collection(its_cmd); u32 coll_id = its_cmd_get_collection(its_cmd);
struct its_itte *itte; struct its_ite *ite;
struct its_device *device; struct its_device *device;
struct its_collection *collection, *new_coll = NULL; struct its_collection *collection, *new_coll = NULL;
int lpi_nr; int lpi_nr;
@ -728,7 +728,7 @@ static int vgic_its_cmd_handle_mapi(struct kvm *kvm, struct vgic_its *its,
return E_ITS_MAPTI_PHYSICALID_OOR; return E_ITS_MAPTI_PHYSICALID_OOR;
/* If there is an existing mapping, behavior is UNPREDICTABLE. */ /* If there is an existing mapping, behavior is UNPREDICTABLE. */
if (find_itte(its, device_id, event_id)) if (find_ite(its, device_id, event_id))
return 0; return 0;
collection = find_collection(its, coll_id); collection = find_collection(its, coll_id);
@ -739,36 +739,36 @@ static int vgic_its_cmd_handle_mapi(struct kvm *kvm, struct vgic_its *its,
new_coll = collection; new_coll = collection;
} }
itte = kzalloc(sizeof(struct its_itte), GFP_KERNEL); ite = kzalloc(sizeof(struct its_ite), GFP_KERNEL);
if (!itte) { if (!ite) {
if (new_coll) if (new_coll)
vgic_its_free_collection(its, coll_id); vgic_its_free_collection(its, coll_id);
return -ENOMEM; return -ENOMEM;
} }
itte->event_id = event_id; ite->event_id = event_id;
list_add_tail(&itte->itte_list, &device->itt_head); list_add_tail(&ite->ite_list, &device->itt_head);
itte->collection = collection; ite->collection = collection;
itte->lpi = lpi_nr; ite->lpi = lpi_nr;
irq = vgic_add_lpi(kvm, lpi_nr); irq = vgic_add_lpi(kvm, lpi_nr);
if (IS_ERR(irq)) { if (IS_ERR(irq)) {
if (new_coll) if (new_coll)
vgic_its_free_collection(its, coll_id); vgic_its_free_collection(its, coll_id);
its_free_itte(kvm, itte); its_free_ite(kvm, ite);
return PTR_ERR(irq); return PTR_ERR(irq);
} }
itte->irq = irq; ite->irq = irq;
update_affinity_itte(kvm, itte); update_affinity_ite(kvm, ite);
/* /*
* We "cache" the configuration table entries in out struct vgic_irq's. * We "cache" the configuration table entries in out struct vgic_irq's.
* However we only have those structs for mapped IRQs, so we read in * However we only have those structs for mapped IRQs, so we read in
* the respective config data from memory here upon mapping the LPI. * the respective config data from memory here upon mapping the LPI.
*/ */
update_lpi_config(kvm, itte->irq, NULL); update_lpi_config(kvm, ite->irq, NULL);
return 0; return 0;
} }
@ -776,15 +776,15 @@ static int vgic_its_cmd_handle_mapi(struct kvm *kvm, struct vgic_its *its,
/* Requires the its_lock to be held. */ /* Requires the its_lock to be held. */
static void vgic_its_unmap_device(struct kvm *kvm, struct its_device *device) static void vgic_its_unmap_device(struct kvm *kvm, struct its_device *device)
{ {
struct its_itte *itte, *temp; struct its_ite *ite, *temp;
/* /*
* The spec says that unmapping a device with still valid * The spec says that unmapping a device with still valid
* ITTEs associated is UNPREDICTABLE. We remove all ITTEs, * ITTEs associated is UNPREDICTABLE. We remove all ITTEs,
* since we cannot leave the memory unreferenced. * since we cannot leave the memory unreferenced.
*/ */
list_for_each_entry_safe(itte, temp, &device->itt_head, itte_list) list_for_each_entry_safe(ite, temp, &device->itt_head, ite_list)
its_free_itte(kvm, itte); its_free_ite(kvm, ite);
list_del(&device->dev_list); list_del(&device->dev_list);
kfree(device); kfree(device);
@ -883,14 +883,14 @@ static int vgic_its_cmd_handle_clear(struct kvm *kvm, struct vgic_its *its,
{ {
u32 device_id = its_cmd_get_deviceid(its_cmd); u32 device_id = its_cmd_get_deviceid(its_cmd);
u32 event_id = its_cmd_get_id(its_cmd); u32 event_id = its_cmd_get_id(its_cmd);
struct its_itte *itte; struct its_ite *ite;
itte = find_itte(its, device_id, event_id); ite = find_ite(its, device_id, event_id);
if (!itte) if (!ite)
return E_ITS_CLEAR_UNMAPPED_INTERRUPT; return E_ITS_CLEAR_UNMAPPED_INTERRUPT;
itte->irq->pending_latch = false; ite->irq->pending_latch = false;
return 0; return 0;
} }
@ -904,14 +904,14 @@ static int vgic_its_cmd_handle_inv(struct kvm *kvm, struct vgic_its *its,
{ {
u32 device_id = its_cmd_get_deviceid(its_cmd); u32 device_id = its_cmd_get_deviceid(its_cmd);
u32 event_id = its_cmd_get_id(its_cmd); u32 event_id = its_cmd_get_id(its_cmd);
struct its_itte *itte; struct its_ite *ite;
itte = find_itte(its, device_id, event_id); ite = find_ite(its, device_id, event_id);
if (!itte) if (!ite)
return E_ITS_INV_UNMAPPED_INTERRUPT; return E_ITS_INV_UNMAPPED_INTERRUPT;
return update_lpi_config(kvm, itte->irq, NULL); return update_lpi_config(kvm, ite->irq, NULL);
} }
/* /*
@ -1435,7 +1435,7 @@ static void vgic_its_destroy(struct kvm_device *kvm_dev)
struct kvm *kvm = kvm_dev->kvm; struct kvm *kvm = kvm_dev->kvm;
struct vgic_its *its = kvm_dev->private; struct vgic_its *its = kvm_dev->private;
struct its_device *dev; struct its_device *dev;
struct its_itte *itte; struct its_ite *ite;
struct list_head *dev_cur, *dev_temp; struct list_head *dev_cur, *dev_temp;
struct list_head *cur, *temp; struct list_head *cur, *temp;
@ -1450,8 +1450,8 @@ static void vgic_its_destroy(struct kvm_device *kvm_dev)
list_for_each_safe(dev_cur, dev_temp, &its->device_list) { list_for_each_safe(dev_cur, dev_temp, &its->device_list) {
dev = container_of(dev_cur, struct its_device, dev_list); dev = container_of(dev_cur, struct its_device, dev_list);
list_for_each_safe(cur, temp, &dev->itt_head) { list_for_each_safe(cur, temp, &dev->itt_head) {
itte = (container_of(cur, struct its_itte, itte_list)); ite = (container_of(cur, struct its_ite, ite_list));
its_free_itte(kvm, itte); its_free_ite(kvm, ite);
} }
list_del(dev_cur); list_del(dev_cur);
kfree(dev); kfree(dev);