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powerpc/pci: Clean up direct access to sysdata by celleb platforms 

We shouldn't directly access sysdata to get the device node to just
go get the pci_controller.  We can call pci_bus_to_host() for this
purpose.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Kumar Gala 2009-04-30 03:10:15 +00:00 committed by Benjamin Herrenschmidt
parent 2f52297665
commit 58513dc40d
3 changed files with 6 additions and 29 deletions
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10
arch/powerpc/platforms/cell/celleb_pci.c
View File

@ -162,8 +162,7 @@ static int celleb_fake_pci_read_config(struct pci_bus *bus,
unsigned int devfn, int where, int size, u32 *val)
{
char *config;
struct device_node *node;
struct pci_controller *hose;
struct pci_controller *hose = pci_bus_to_host(bus);
unsigned int devno = devfn >> 3;
unsigned int fn = devfn & 0x7;
@ -171,8 +170,6 @@ static int celleb_fake_pci_read_config(struct pci_bus *bus,
BUG_ON(where % size);
pr_debug(" fake read: bus=0x%x, ", bus->number);
node = (struct device_node *)bus->sysdata;
hose = pci_find_hose_for_OF_device(node);
config = get_fake_config_start(hose, devno, fn);
pr_debug("devno=0x%x, where=0x%x, size=0x%x, ", devno, where, size);
@ -192,8 +189,7 @@ static int celleb_fake_pci_write_config(struct pci_bus *bus,
unsigned int devfn, int where, int size, u32 val)
{
char *config;
struct device_node *node;
struct pci_controller *hose;
struct pci_controller *hose = pci_bus_to_host(bus);
struct celleb_pci_resource *res;
unsigned int devno = devfn >> 3;
unsigned int fn = devfn & 0x7;
@ -201,8 +197,6 @@ static int celleb_fake_pci_write_config(struct pci_bus *bus,
/* allignment check */
BUG_ON(where % size);
node = (struct device_node *)bus->sysdata;
hose = pci_find_hose_for_OF_device(node);
config = get_fake_config_start(hose, devno, fn);
if (!config)

13
arch/powerpc/platforms/cell/celleb_scc_epci.c
View File

@ -134,15 +134,11 @@ static int celleb_epci_read_config(struct pci_bus *bus,
{
PCI_IO_ADDR epci_base;
PCI_IO_ADDR addr;
struct device_node *node;
struct pci_controller *hose;
struct pci_controller *hose = pci_bus_to_host(bus);
/* allignment check */
BUG_ON(where % size);
node = (struct device_node *)bus->sysdata;
hose = pci_find_hose_for_OF_device(node);
if (!celleb_epci_get_epci_cfg(hose))
return PCIBIOS_DEVICE_NOT_FOUND;
@ -198,16 +194,11 @@ static int celleb_epci_write_config(struct pci_bus *bus,
{
PCI_IO_ADDR epci_base;
PCI_IO_ADDR addr;
struct device_node *node;
struct pci_controller *hose;
struct pci_controller *hose = pci_bus_to_host(bus);
/* allignment check */
BUG_ON(where % size);
node = (struct device_node *)bus->sysdata;
hose = pci_find_hose_for_OF_device(node);
if (!celleb_epci_get_epci_cfg(hose))
return PCIBIOS_DEVICE_NOT_FOUND;

12
arch/powerpc/platforms/cell/celleb_scc_pciex.c
View File

@ -366,11 +366,7 @@ static void config_write_pciex_rc(unsigned int __iomem *base, uint32_t where,
static int scc_pciex_read_config(struct pci_bus *bus, unsigned int devfn,
int where, int size, unsigned int *val)
{
struct device_node *dn;
struct pci_controller *phb;
dn = bus->sysdata;
phb = pci_find_hose_for_OF_device(dn);
struct pci_controller *phb = pci_bus_to_host(bus);
if (bus->number == phb->first_busno && PCI_SLOT(devfn) != 1) {
*val = ~0;
@ -389,11 +385,7 @@ static int scc_pciex_read_config(struct pci_bus *bus, unsigned int devfn,
static int scc_pciex_write_config(struct pci_bus *bus, unsigned int devfn,
int where, int size, unsigned int val)
{
struct device_node *dn;
struct pci_controller *phb;
dn = bus->sysdata;
phb = pci_find_hose_for_OF_device(dn);
struct pci_controller *phb = pci_bus_to_host(bus);
if (bus->number == phb->first_busno && PCI_SLOT(devfn) != 1)
return PCIBIOS_DEVICE_NOT_FOUND;