forked from Minki/linux
ppc64 iSeries: use device_node instead of iSeries_Device_node
There needs to be more cleanup after this. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
This commit is contained in:
Stephen Rothwell
parent
c111d0bda8
commit
252e75a51d
@ -89,15 +89,17 @@ static void tce_free_iSeries(struct iommu_table *tbl, long index, long npages)
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*/
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static struct iommu_table *iommu_table_find(struct iommu_table * tbl)
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{
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struct iSeries_Device_Node *dp;
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struct device_node *dp;
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list_for_each_entry(dp, &iSeries_Global_Device_List, Device_List) {
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if ((dp->iommu_table != NULL) &&
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(dp->iommu_table->it_type == TCE_PCI) &&
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(dp->iommu_table->it_offset == tbl->it_offset) &&
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(dp->iommu_table->it_index == tbl->it_index) &&
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(dp->iommu_table->it_size == tbl->it_size))
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return dp->iommu_table;
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struct iommu_table *it = PCI_DN(dp)->iommu_table;
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if ((it != NULL) &&
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(it->it_type == TCE_PCI) &&
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(it->it_offset == tbl->it_offset) &&
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(it->it_index == tbl->it_index) &&
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(it->it_size == tbl->it_size))
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return it;
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}
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return NULL;
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}
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@ -111,7 +113,7 @@ static struct iommu_table *iommu_table_find(struct iommu_table * tbl)
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* 2. TCE table per Bus.
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* 3. TCE Table per IOA.
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*/
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static void iommu_table_getparms(struct iSeries_Device_Node* dn,
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static void iommu_table_getparms(struct device_node *dn,
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struct iommu_table* tbl)
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{
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struct iommu_table_cb *parms;
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@ -123,7 +125,7 @@ static void iommu_table_getparms(struct iSeries_Device_Node* dn,
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memset(parms, 0, sizeof(*parms));
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parms->itc_busno = ISERIES_BUS(dn);
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parms->itc_slotno = dn->LogicalSlot;
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parms->itc_slotno = PCI_DN(dn)->LogicalSlot;
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parms->itc_virtbus = 0;
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HvCallXm_getTceTableParms(ISERIES_HV_ADDR(parms));
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@ -143,18 +145,19 @@ static void iommu_table_getparms(struct iSeries_Device_Node* dn,
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}
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void iommu_devnode_init_iSeries(struct iSeries_Device_Node *dn)
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void iommu_devnode_init_iSeries(struct device_node *dn)
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{
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struct iommu_table *tbl;
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struct pci_dn *pdn = PCI_DN(dn);
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tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
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iommu_table_getparms(dn, tbl);
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/* Look for existing tce table */
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dn->iommu_table = iommu_table_find(tbl);
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if (dn->iommu_table == NULL)
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dn->iommu_table = iommu_init_table(tbl);
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pdn->iommu_table = iommu_table_find(tbl);
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if (pdn->iommu_table == NULL)
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pdn->iommu_table = iommu_init_table(tbl);
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else
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kfree(tbl);
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}
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@ -48,7 +48,7 @@ extern unsigned long io_page_mask;
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/*
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* Forward declares of prototypes.
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*/
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static struct iSeries_Device_Node *find_Device_Node(int bus, int devfn);
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static struct device_node *find_Device_Node(int bus, int devfn);
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static void scan_PHB_slots(struct pci_controller *Phb);
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static void scan_EADS_bridge(HvBusNumber Bus, HvSubBusNumber SubBus, int IdSel);
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static int scan_bridge_slot(HvBusNumber Bus, struct HvCallPci_BridgeInfo *Info);
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@ -85,7 +85,7 @@ static long current_iomm_table_entry;
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/*
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* Lookup Tables.
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*/
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static struct iSeries_Device_Node **iomm_table;
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static struct device_node **iomm_table;
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static u8 *iobar_table;
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/*
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@ -199,29 +199,35 @@ static void pci_Log_Error(char *Error_Text, int Bus, int SubBus,
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/*
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* build_device_node(u16 Bus, int SubBus, u8 DevFn)
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*/
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static struct iSeries_Device_Node *build_device_node(HvBusNumber Bus,
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static struct device_node *build_device_node(HvBusNumber Bus,
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HvSubBusNumber SubBus, int AgentId, int Function)
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{
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struct iSeries_Device_Node *node;
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struct device_node *node;
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struct pci_dn *pdn;
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PPCDBG(PPCDBG_BUSWALK,
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"-build_device_node 0x%02X.%02X.%02X Function: %02X\n",
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Bus, SubBus, AgentId, Function);
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node = kmalloc(sizeof(struct iSeries_Device_Node), GFP_KERNEL);
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node = kmalloc(sizeof(struct device_node), GFP_KERNEL);
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if (node == NULL)
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return NULL;
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memset(node, 0, sizeof(struct iSeries_Device_Node));
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memset(node, 0, sizeof(struct device_node));
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pdn = kzalloc(sizeof(*pdn), GFP_KERNEL);
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if (pdn == NULL) {
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kfree(node);
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return NULL;
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}
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node->data = pdn;
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list_add_tail(&node->Device_List, &iSeries_Global_Device_List);
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#if 0
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node->DsaAddr = ((u64)Bus << 48) + ((u64)SubBus << 40) + ((u64)0x10 << 32);
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pdn->DsaAddr = ((u64)Bus << 48) + ((u64)SubBus << 40) + ((u64)0x10 << 32);
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#endif
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node->DsaAddr.DsaAddr = 0;
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node->DsaAddr.Dsa.busNumber = Bus;
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node->DsaAddr.Dsa.subBusNumber = SubBus;
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node->DsaAddr.Dsa.deviceId = 0x10;
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node->DevFn = PCI_DEVFN(ISERIES_ENCODE_DEVICE(AgentId), Function);
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pdn->DsaAddr.DsaAddr = 0;
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pdn->DsaAddr.Dsa.busNumber = Bus;
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pdn->DsaAddr.Dsa.subBusNumber = SubBus;
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pdn->DsaAddr.Dsa.deviceId = 0x10;
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pdn->devfn = PCI_DEVFN(ISERIES_ENCODE_DEVICE(AgentId), Function);
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return node;
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}
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@ -294,7 +300,7 @@ void iSeries_pcibios_init(void)
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void __init iSeries_pci_final_fixup(void)
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{
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struct pci_dev *pdev = NULL;
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struct iSeries_Device_Node *node;
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struct device_node *node;
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int DeviceCount = 0;
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PPCDBG(PPCDBG_BUSWALK, "iSeries_pcibios_fixup Entry.\n");
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@ -311,7 +317,7 @@ void __init iSeries_pci_final_fixup(void)
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if (node != NULL) {
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++DeviceCount;
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pdev->sysdata = (void *)node;
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node->PciDev = pdev;
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PCI_DN(node)->pcidev = pdev;
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PPCDBG(PPCDBG_BUSWALK,
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"pdev 0x%p <==> DevNode 0x%p\n",
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pdev, node);
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@ -321,7 +327,7 @@ void __init iSeries_pci_final_fixup(void)
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} else
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printk("PCI: Device Tree not found for 0x%016lX\n",
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(unsigned long)pdev);
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pdev->irq = node->Irq;
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pdev->irq = PCI_DN(node)->Irq;
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}
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iSeries_activate_IRQs();
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mf_display_src(0xC9000200);
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@ -439,7 +445,7 @@ static void scan_EADS_bridge(HvBusNumber bus, HvSubBusNumber SubBus,
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static int scan_bridge_slot(HvBusNumber Bus,
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struct HvCallPci_BridgeInfo *BridgeInfo)
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{
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struct iSeries_Device_Node *node;
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struct device_node *node;
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HvSubBusNumber SubBus = BridgeInfo->subBusNumber;
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u16 VendorId = 0;
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int HvRc = 0;
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@ -489,8 +495,8 @@ static int scan_bridge_slot(HvBusNumber Bus,
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++DeviceCount;
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node = build_device_node(Bus, SubBus, EADsIdSel, Function);
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node->Irq = Irq;
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node->LogicalSlot = BridgeInfo->logicalSlotNumber;
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PCI_DN(node)->Irq = Irq;
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PCI_DN(node)->LogicalSlot = BridgeInfo->logicalSlotNumber;
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} /* for (Function = 0; Function < 8; ++Function) */
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} /* for (IdSel = 1; IdSel <= MaxAgents; ++IdSel) */
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@ -540,15 +546,16 @@ EXPORT_SYMBOL(iSeries_memcpy_fromio);
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/*
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* Look down the chain to find the matching Device Device
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*/
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static struct iSeries_Device_Node *find_Device_Node(int bus, int devfn)
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static struct device_node *find_Device_Node(int bus, int devfn)
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{
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struct list_head *pos;
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list_for_each(pos, &iSeries_Global_Device_List) {
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struct iSeries_Device_Node *node =
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list_entry(pos, struct iSeries_Device_Node, Device_List);
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struct device_node *node =
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list_entry(pos, struct device_node, Device_List);
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if ((bus == ISERIES_BUS(node)) && (devfn == node->DevFn))
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if ((bus == ISERIES_BUS(node)) &&
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(devfn == PCI_DN(node)->devfn))
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return node;
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}
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return NULL;
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@ -560,12 +567,12 @@ static struct iSeries_Device_Node *find_Device_Node(int bus, int devfn)
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* Sanity Check Node PciDev to passed pci_dev
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* If none is found, returns a NULL which the client must handle.
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*/
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static struct iSeries_Device_Node *get_Device_Node(struct pci_dev *pdev)
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static struct device_node *get_Device_Node(struct pci_dev *pdev)
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{
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struct iSeries_Device_Node *node;
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struct device_node *node;
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node = pdev->sysdata;
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if (node == NULL || node->PciDev != pdev)
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if (node == NULL || PCI_DN(node)->pcidev != pdev)
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node = find_Device_Node(pdev->bus->number, pdev->devfn);
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return node;
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}
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@ -593,7 +600,7 @@ static u64 hv_cfg_write_func[4] = {
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static int iSeries_pci_read_config(struct pci_bus *bus, unsigned int devfn,
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int offset, int size, u32 *val)
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{
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struct iSeries_Device_Node *node = find_Device_Node(bus->number, devfn);
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struct device_node *node = find_Device_Node(bus->number, devfn);
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u64 fn;
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struct HvCallPci_LoadReturn ret;
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@ -605,7 +612,7 @@ static int iSeries_pci_read_config(struct pci_bus *bus, unsigned int devfn,
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}
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fn = hv_cfg_read_func[(size - 1) & 3];
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HvCall3Ret16(fn, &ret, node->DsaAddr.DsaAddr, offset, 0);
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HvCall3Ret16(fn, &ret, PCI_DN(node)->DsaAddr.DsaAddr, offset, 0);
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if (ret.rc != 0) {
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*val = ~0;
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@ -623,7 +630,7 @@ static int iSeries_pci_read_config(struct pci_bus *bus, unsigned int devfn,
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static int iSeries_pci_write_config(struct pci_bus *bus, unsigned int devfn,
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int offset, int size, u32 val)
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{
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struct iSeries_Device_Node *node = find_Device_Node(bus->number, devfn);
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struct device_node *node = find_Device_Node(bus->number, devfn);
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u64 fn;
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u64 ret;
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@ -633,7 +640,7 @@ static int iSeries_pci_write_config(struct pci_bus *bus, unsigned int devfn,
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return PCIBIOS_BAD_REGISTER_NUMBER;
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fn = hv_cfg_write_func[(size - 1) & 3];
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ret = HvCall4(fn, node->DsaAddr.DsaAddr, offset, val, 0);
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ret = HvCall4(fn, PCI_DN(node)->DsaAddr.DsaAddr, offset, val, 0);
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if (ret != 0)
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return PCIBIOS_DEVICE_NOT_FOUND;
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@ -655,14 +662,16 @@ static struct pci_ops iSeries_pci_ops = {
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* PCI: Device 23.90 ReadL Retry( 1)
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* PCI: Device 23.90 ReadL Retry Successful(1)
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*/
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static int CheckReturnCode(char *TextHdr, struct iSeries_Device_Node *DevNode,
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static int CheckReturnCode(char *TextHdr, struct device_node *DevNode,
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int *retry, u64 ret)
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{
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if (ret != 0) {
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struct pci_dn *pdn = PCI_DN(DevNode);
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++Pci_Error_Count;
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(*retry)++;
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printk("PCI: %s: Device 0x%04X:%02X I/O Error(%2d): 0x%04X\n",
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TextHdr, DevNode->DsaAddr.Dsa.busNumber, DevNode->DevFn,
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TextHdr, pdn->DsaAddr.Dsa.busNumber, pdn->devfn,
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*retry, (int)ret);
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/*
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* Bump the retry and check for retry count exceeded.
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@ -685,14 +694,14 @@ static int CheckReturnCode(char *TextHdr, struct iSeries_Device_Node *DevNode,
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* Note: Make sure the passed variable end up on the stack to avoid
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* the exposure of being device global.
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*/
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static inline struct iSeries_Device_Node *xlate_iomm_address(
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static inline struct device_node *xlate_iomm_address(
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const volatile void __iomem *IoAddress,
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u64 *dsaptr, u64 *BarOffsetPtr)
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{
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unsigned long OrigIoAddr;
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unsigned long BaseIoAddr;
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unsigned long TableIndex;
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struct iSeries_Device_Node *DevNode;
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struct device_node *DevNode;
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OrigIoAddr = (unsigned long __force)IoAddress;
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if ((OrigIoAddr < BASE_IO_MEMORY) || (OrigIoAddr >= max_io_memory))
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@ -703,7 +712,7 @@ static inline struct iSeries_Device_Node *xlate_iomm_address(
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if (DevNode != NULL) {
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int barnum = iobar_table[TableIndex];
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*dsaptr = DevNode->DsaAddr.DsaAddr | (barnum << 24);
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*dsaptr = PCI_DN(DevNode)->DsaAddr.DsaAddr | (barnum << 24);
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*BarOffsetPtr = BaseIoAddr % IOMM_TABLE_ENTRY_SIZE;
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} else
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panic("PCI: Invalid PCI IoAddress detected!\n");
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@ -725,7 +734,7 @@ u8 iSeries_Read_Byte(const volatile void __iomem *IoAddress)
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u64 dsa;
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int retry = 0;
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struct HvCallPci_LoadReturn ret;
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struct iSeries_Device_Node *DevNode =
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struct device_node *DevNode =
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xlate_iomm_address(IoAddress, &dsa, &BarOffset);
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if (DevNode == NULL) {
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@ -755,7 +764,7 @@ u16 iSeries_Read_Word(const volatile void __iomem *IoAddress)
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u64 dsa;
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int retry = 0;
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struct HvCallPci_LoadReturn ret;
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struct iSeries_Device_Node *DevNode =
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struct device_node *DevNode =
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xlate_iomm_address(IoAddress, &dsa, &BarOffset);
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if (DevNode == NULL) {
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@ -786,7 +795,7 @@ u32 iSeries_Read_Long(const volatile void __iomem *IoAddress)
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u64 dsa;
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int retry = 0;
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struct HvCallPci_LoadReturn ret;
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struct iSeries_Device_Node *DevNode =
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struct device_node *DevNode =
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xlate_iomm_address(IoAddress, &dsa, &BarOffset);
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if (DevNode == NULL) {
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@ -824,7 +833,7 @@ void iSeries_Write_Byte(u8 data, volatile void __iomem *IoAddress)
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u64 dsa;
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int retry = 0;
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u64 rc;
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struct iSeries_Device_Node *DevNode =
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struct device_node *DevNode =
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xlate_iomm_address(IoAddress, &dsa, &BarOffset);
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if (DevNode == NULL) {
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@ -852,7 +861,7 @@ void iSeries_Write_Word(u16 data, volatile void __iomem *IoAddress)
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u64 dsa;
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int retry = 0;
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u64 rc;
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struct iSeries_Device_Node *DevNode =
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struct device_node *DevNode =
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xlate_iomm_address(IoAddress, &dsa, &BarOffset);
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if (DevNode == NULL) {
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@ -880,7 +889,7 @@ void iSeries_Write_Long(u32 data, volatile void __iomem *IoAddress)
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u64 dsa;
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int retry = 0;
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u64 rc;
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struct iSeries_Device_Node *DevNode =
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struct device_node *DevNode =
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xlate_iomm_address(IoAddress, &dsa, &BarOffset);
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if (DevNode == NULL) {
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@ -240,7 +240,7 @@ out_free:
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*/
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void __init iSeries_Device_Information(struct pci_dev *PciDev, int count)
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{
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struct iSeries_Device_Node *DevNode = PciDev->sysdata;
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struct device_node *DevNode = PciDev->sysdata;
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u16 bus;
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u8 frame;
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char card[4];
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@ -61,13 +61,7 @@ static inline struct iommu_table *devnode_table(struct device *dev)
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} else
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pdev = to_pci_dev(dev);
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#ifdef CONFIG_PPC_ISERIES
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return ISERIES_DEVNODE(pdev)->iommu_table;
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#endif /* CONFIG_PPC_ISERIES */
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#ifdef CONFIG_PPC_MULTIPLATFORM
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return PCI_DN(PCI_GET_DN(pdev))->iommu_table;
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#endif /* CONFIG_PPC_MULTIPLATFORM */
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}
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@ -30,21 +30,19 @@
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* End Change Activity
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*/
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#include <asm/iSeries/HvCallPci.h>
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#include <asm/abs_addr.h>
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#include <asm/prom.h>
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#include <asm/pci-bridge.h>
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struct pci_dev; /* For Forward Reference */
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struct iSeries_Device_Node;
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/*
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* Gets iSeries Bus, SubBus, DevFn using iSeries_Device_Node structure
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* Gets iSeries Bus, SubBus, DevFn using device_node structure
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*/
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#define ISERIES_BUS(DevPtr) DevPtr->DsaAddr.Dsa.busNumber
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#define ISERIES_SUBBUS(DevPtr) DevPtr->DsaAddr.Dsa.subBusNumber
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#define ISERIES_DEVICE(DevPtr) DevPtr->DsaAddr.Dsa.deviceId
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#define ISERIES_DSA(DevPtr) DevPtr->DsaAddr.DsaAddr
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#define ISERIES_DEVNODE(PciDev) ((struct iSeries_Device_Node *)PciDev->sysdata)
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#define ISERIES_BUS(DevPtr) PCI_DN(DevPtr)->DsaAddr.Dsa.busNumber
|
||||
#define ISERIES_SUBBUS(DevPtr) PCI_DN(DevPtr)->DsaAddr.Dsa.subBusNumber
|
||||
#define ISERIES_DEVNODE(PciDev) ((struct device_node *)PciDev->sysdata)
|
||||
|
||||
#define EADsMaxAgents 7
|
||||
|
||||
@ -67,22 +65,6 @@ struct iSeries_Device_Node;
|
||||
#define ISERIES_HV_ADDR(virtaddr) \
|
||||
(0x8000000000000000 | virt_to_abs(virtaddr))
|
||||
|
||||
/*
|
||||
* iSeries Device Information
|
||||
*/
|
||||
struct iSeries_Device_Node {
|
||||
struct list_head Device_List;
|
||||
struct pci_dev *PciDev;
|
||||
union HvDsaMap DsaAddr; /* Direct Select Address */
|
||||
/* busNumber, subBusNumber, */
|
||||
/* deviceId, barNumber */
|
||||
int DevFn; /* Linux devfn */
|
||||
int Irq; /* Assigned IRQ */
|
||||
int Flags; /* Possible flags(disable/bist)*/
|
||||
u8 LogicalSlot; /* Hv Slot Index for Tces */
|
||||
struct iommu_table *iommu_table;/* Device TCE Table */
|
||||
};
|
||||
|
||||
extern void iSeries_Device_Information(struct pci_dev*, int);
|
||||
|
||||
#endif /* _ISERIES_64_PCI_H */
|
||||
|
||||
@ -49,6 +49,7 @@ struct iommu_table {
|
||||
};
|
||||
|
||||
struct scatterlist;
|
||||
struct device_node;
|
||||
|
||||
#ifdef CONFIG_PPC_MULTIPLATFORM
|
||||
|
||||
@ -70,9 +71,8 @@ extern void iommu_devnode_init_pSeries(struct device_node *dn);
|
||||
|
||||
#ifdef CONFIG_PPC_ISERIES
|
||||
|
||||
struct iSeries_Device_Node;
|
||||
/* Creates table for an individual device node */
|
||||
extern void iommu_devnode_init_iSeries(struct iSeries_Device_Node *dn);
|
||||
extern void iommu_devnode_init_iSeries(struct device_node *dn);
|
||||
|
||||
#endif /* CONFIG_PPC_ISERIES */
|
||||
|
||||
|
||||
@ -4,6 +4,8 @@
|
||||
|
||||
#include <linux/pci.h>
|
||||
|
||||
#include <asm/iSeries/HvCallPci.h>
|
||||
|
||||
/*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
@ -71,6 +73,14 @@ struct pci_dn {
|
||||
struct iommu_table *iommu_table; /* for phb's or bridges */
|
||||
struct pci_dev *pcidev; /* back-pointer to the pci device */
|
||||
struct device_node *node; /* back-pointer to the device_node */
|
||||
#ifdef CONFIG_PPC_ISERIES
|
||||
union HvDsaMap DsaAddr; /* Direct Select Address */
|
||||
/* busNumber, subBusNumber, */
|
||||
/* deviceId, barNumber */
|
||||
int Irq; /* Assigned IRQ */
|
||||
int Flags; /* Possible flags(disable/bist)*/
|
||||
u8 LogicalSlot; /* Hv Slot Index for Tces */
|
||||
#endif
|
||||
u32 config_space[16]; /* saved PCI config space */
|
||||
};
|
||||
|
||||
|
||||
@ -137,6 +137,9 @@ struct device_node {
|
||||
struct kref kref;
|
||||
unsigned long _flags;
|
||||
void *data;
|
||||
#ifdef CONFIG_PPC_ISERIES
|
||||
struct list_head Device_List;
|
||||
#endif
|
||||
};
|
||||
|
||||
extern struct device_node *of_chosen;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user