openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

powerpc/pseries: Fix endian issues in pseries EEH code 

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Anton Blanchard 2013-11-20 22:14:58 +11:00 committed by Benjamin Herrenschmidt
parent 0c4888ef1d
commit b91da2d4ce
1 changed files with 12 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
arch/powerpc/platforms/pseries/eeh_pseries.c
View File

@ -189,8 +189,9 @@ static void *pseries_eeh_of_probe(struct device_node *dn, void *flag)
struct eeh_dev *edev;
struct eeh_pe pe;
struct pci_dn *pdn = PCI_DN(dn);
const u32 *class_code, *vendor_id, *device_id;
const u32 *regs;
const __be32 *classp, *vendorp, *devicep;
u32 class_code;
const __be32 *regs;
u32 pcie_flags;
int enable = 0;
int ret;
@ -201,22 +202,24 @@ static void *pseries_eeh_of_probe(struct device_node *dn, void *flag)
return NULL;
/* Retrieve class/vendor/device IDs */
class_code = of_get_property(dn, "class-code", NULL);
vendor_id = of_get_property(dn, "vendor-id", NULL);
device_id = of_get_property(dn, "device-id", NULL);
classp = of_get_property(dn, "class-code", NULL);
vendorp = of_get_property(dn, "vendor-id", NULL);
devicep = of_get_property(dn, "device-id", NULL);
/* Skip for bad OF node or PCI-ISA bridge */
if (!class_code || !vendor_id || !device_id)
if (!classp || !vendorp || !devicep)
return NULL;
if (dn->type && !strcmp(dn->type, "isa"))
return NULL;
class_code = of_read_number(classp, 1);
/*
* Update class code and mode of eeh device. We need
* correctly reflects that current device is root port
* or PCIe switch downstream port.
*/
edev->class_code = *class_code;
edev->class_code = class_code;
edev->pcie_cap = pseries_eeh_find_cap(dn, PCI_CAP_ID_EXP);
edev->mode &= 0xFFFFFF00;
if ((edev->class_code >> 8) == PCI_CLASS_BRIDGE_PCI) {
@ -243,12 +246,12 @@ static void *pseries_eeh_of_probe(struct device_node *dn, void *flag)
/* Initialize the fake PE */
memset(&pe, 0, sizeof(struct eeh_pe));
pe.phb = edev->phb;
pe.config_addr = regs[0];
pe.config_addr = of_read_number(regs, 1);
/* Enable EEH on the device */
ret = eeh_ops->set_option(&pe, EEH_OPT_ENABLE);
if (!ret) {
edev->config_addr = regs[0];
edev->config_addr = of_read_number(regs, 1);
/* Retrieve PE address */
edev->pe_config_addr = eeh_ops->get_pe_addr(&pe);
pe.addr = edev->pe_config_addr;