Subsequent patches for smmuv3 accel support will make use of this.
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Signed-off-by: Shameer Kolothum <skolothumtho@nvidia.com>
---
hw/arm/smmu-common.c | 44 +++++++++++++++++++++---------------
include/hw/arm/smmu-common.h | 6 +++++
2 files changed, 32 insertions(+), 18 deletions(-)
diff --git a/hw/arm/smmu-common.c b/hw/arm/smmu-common.c
index 62a7612184..59d6147ec9 100644
--- a/hw/arm/smmu-common.c
+++ b/hw/arm/smmu-common.c
@@ -847,12 +847,24 @@ SMMUPciBus *smmu_find_smmu_pcibus(SMMUState *s, uint8_t bus_num)
return NULL;
}
-static AddressSpace *smmu_find_add_as(PCIBus *bus, void *opaque, int devfn)
+void smmu_init_sdev(SMMUState *s, SMMUDevice *sdev, PCIBus *bus, int devfn)
{
- SMMUState *s = opaque;
- SMMUPciBus *sbus = g_hash_table_lookup(s->smmu_pcibus_by_busptr, bus);
- SMMUDevice *sdev;
static unsigned int index;
+ g_autofree char *name = g_strdup_printf("%s-%d-%d", s->mrtypename, devfn,
+ index++);
+ sdev->smmu = s;
+ sdev->bus = bus;
+ sdev->devfn = devfn;
+
+ memory_region_init_iommu(&sdev->iommu, sizeof(sdev->iommu),
+ s->mrtypename, OBJECT(s), name, UINT64_MAX);
+ address_space_init(&sdev->as, MEMORY_REGION(&sdev->iommu), name);
+ trace_smmu_add_mr(name);
+}
+
+SMMUPciBus *smmu_get_sbus(SMMUState *s, PCIBus *bus)
+{
+ SMMUPciBus *sbus = g_hash_table_lookup(s->smmu_pcibus_by_busptr, bus);
if (!sbus) {
sbus = g_malloc0(sizeof(SMMUPciBus) +
@@ -861,23 +873,19 @@ static AddressSpace *smmu_find_add_as(PCIBus *bus, void *opaque, int devfn)
g_hash_table_insert(s->smmu_pcibus_by_busptr, bus, sbus);
}
+ return sbus;
+}
+
+static AddressSpace *smmu_find_add_as(PCIBus *bus, void *opaque, int devfn)
+{
+ SMMUState *s = opaque;
+ SMMUPciBus *sbus = smmu_get_sbus(s, bus);
+ SMMUDevice *sdev;
+
sdev = sbus->pbdev[devfn];
if (!sdev) {
- char *name = g_strdup_printf("%s-%d-%d", s->mrtypename, devfn, index++);
-
sdev = sbus->pbdev[devfn] = g_new0(SMMUDevice, 1);
-
- sdev->smmu = s;
- sdev->bus = bus;
- sdev->devfn = devfn;
-
- memory_region_init_iommu(&sdev->iommu, sizeof(sdev->iommu),
- s->mrtypename,
- OBJECT(s), name, UINT64_MAX);
- address_space_init(&sdev->as,
- MEMORY_REGION(&sdev->iommu), name);
- trace_smmu_add_mr(name);
- g_free(name);
+ smmu_init_sdev(s, sdev, bus, devfn);
}
return &sdev->as;
diff --git a/include/hw/arm/smmu-common.h b/include/hw/arm/smmu-common.h
index 80d0fecfde..c6f899e403 100644
--- a/include/hw/arm/smmu-common.h
+++ b/include/hw/arm/smmu-common.h
@@ -180,6 +180,12 @@ OBJECT_DECLARE_TYPE(SMMUState, SMMUBaseClass, ARM_SMMU)
/* Return the SMMUPciBus handle associated to a PCI bus number */
SMMUPciBus *smmu_find_smmu_pcibus(SMMUState *s, uint8_t bus_num);
+/* Return the SMMUPciBus handle associated to a PCI bus */
+SMMUPciBus *smmu_get_sbus(SMMUState *s, PCIBus *bus);
+
+/* Initialize SMMUDevice handle associated to a SMMUPCIBus */
+void smmu_init_sdev(SMMUState *s, SMMUDevice *sdev, PCIBus *bus, int devfn);
+
/* Return the stream ID of an SMMU device */
static inline uint16_t smmu_get_sid(SMMUDevice *sdev)
{
--
2.43.0