powerpc/eeh: Remove eeh information from pci_dn

The patch removes the eeh information from pci_dn since the eeh
device (struct eeh_dev) already contained those information and
the copy in pci_dn is no longer used except for the pseries iommu
mapping code, which we change to retrieve the PE address from eeh
device instead.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h
index 21f99ae..ac39e6a 100644 (file)
--- a/arch/powerpc/include/asm/pci-bridge.h
+++ b/arch/powerpc/include/asm/pci-bridge.h
@@ -156,14 +156,6 @@ struct pci_dn {
        struct  pci_dev *pcidev;        /* back-pointer to the pci device */
 #ifdef CONFIG_EEH
        struct eeh_dev *edev;           /* eeh device */
-       int     class_code;             /* pci device class */
-       int     eeh_mode;               /* See eeh.h for possible EEH_MODEs */
-       int     eeh_config_addr;
-       int     eeh_pe_config_addr; /* new-style partition endpoint address */
-       int     eeh_check_count;        /* # times driver ignored error */
-       int     eeh_freeze_count;       /* # times this device froze up. */
-       int     eeh_false_positives;    /* # times this device reported #ff's */
-       u32     config_space[16];       /* saved PCI config space */
 #endif
 #define IODA_INVALID_PE                (-1)
 #ifdef CONFIG_PPC_POWERNV

diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index c442f2b..0915b1a 100644 (file)
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -809,8 +809,7 @@ machine_arch_initcall(pseries, find_existing_ddw_windows);
 static int query_ddw(struct pci_dev *dev, const u32 *ddw_avail,
                        struct ddw_query_response *query)
 {
-       struct device_node *dn;
-       struct pci_dn *pcidn;
+       struct eeh_dev *edev;
        u32 cfg_addr;
        u64 buid;
        int ret;
@@ -821,12 +820,12 @@ static int query_ddw(struct pci_dev *dev, const u32 *ddw_avail,
         * Retrieve them from the pci device, not the node with the
         * dma-window property
         */
-       dn = pci_device_to_OF_node(dev);
-       pcidn = PCI_DN(dn);
-       cfg_addr = pcidn->eeh_config_addr;
-       if (pcidn->eeh_pe_config_addr)
-               cfg_addr = pcidn->eeh_pe_config_addr;
-       buid = pcidn->phb->buid;
+       edev = pci_dev_to_eeh_dev(dev);
+       cfg_addr = edev->config_addr;
+       if (edev->pe_config_addr)
+               cfg_addr = edev->pe_config_addr;
+       buid = edev->phb->buid;
+
        ret = rtas_call(ddw_avail[0], 3, 5, (u32 *)query,
                  cfg_addr, BUID_HI(buid), BUID_LO(buid));
        dev_info(&dev->dev, "ibm,query-pe-dma-windows(%x) %x %x %x"
@@ -839,8 +838,7 @@ static int create_ddw(struct pci_dev *dev, const u32 *ddw_avail,
                        struct ddw_create_response *create, int page_shift,
                        int window_shift)
 {
-       struct device_node *dn;
-       struct pci_dn *pcidn;
+       struct eeh_dev *edev;
        u32 cfg_addr;
        u64 buid;
        int ret;
@@ -851,12 +849,11 @@ static int create_ddw(struct pci_dev *dev, const u32 *ddw_avail,
         * Retrieve them from the pci device, not the node with the
         * dma-window property
         */
-       dn = pci_device_to_OF_node(dev);
-       pcidn = PCI_DN(dn);
-       cfg_addr = pcidn->eeh_config_addr;
-       if (pcidn->eeh_pe_config_addr)
-               cfg_addr = pcidn->eeh_pe_config_addr;
-       buid = pcidn->phb->buid;
+       edev = pci_dev_to_eeh_dev(dev);
+       cfg_addr = edev->config_addr;
+       if (edev->pe_config_addr)
+               cfg_addr = edev->pe_config_addr;
+       buid = edev->phb->buid;
 
        do {
                /* extra outputs are LIOBN and dma-addr (hi, lo) */