From: Kumar Gala <galak@kernel•crashing.org>
To: linuxppc-dev@ozlabs•org
Subject: [PATCH 9/9] powerpc/pci: clean up direct access to sysdata by celleb platforms
Date: Thu, 30 Apr 2009 08:10:15 -0500 [thread overview]
Message-ID: <1241097015-11208-9-git-send-email-galak@kernel.crashing.org> (raw)
In-Reply-To: <1241097015-11208-8-git-send-email-galak@kernel.crashing.org>
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>
---
arch/powerpc/platforms/cell/celleb_pci.c | 10 ++--------
arch/powerpc/platforms/cell/celleb_scc_epci.c | 13 ++-----------
arch/powerpc/platforms/cell/celleb_scc_pciex.c | 12 ++----------
3 files changed, 6 insertions(+), 29 deletions(-)
diff --git a/arch/powerpc/platforms/cell/celleb_pci.c b/arch/powerpc/platforms/cell/celleb_pci.c
index f39a3b2..00eaaa7 100644
--- a/arch/powerpc/platforms/cell/celleb_pci.c
+++ b/arch/powerpc/platforms/cell/celleb_pci.c
@@ -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)
diff --git a/arch/powerpc/platforms/cell/celleb_scc_epci.c b/arch/powerpc/platforms/cell/celleb_scc_epci.c
index 48ec88a..05b0db3 100644
--- a/arch/powerpc/platforms/cell/celleb_scc_epci.c
+++ b/arch/powerpc/platforms/cell/celleb_scc_epci.c
@@ -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;
diff --git a/arch/powerpc/platforms/cell/celleb_scc_pciex.c b/arch/powerpc/platforms/cell/celleb_scc_pciex.c
index 3e7e0f1..7fca09f 100644
--- a/arch/powerpc/platforms/cell/celleb_scc_pciex.c
+++ b/arch/powerpc/platforms/cell/celleb_scc_pciex.c
@@ -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;
--
1.6.0.6
prev parent reply other threads:[~2009-04-30 13:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-30 13:10 [PATCH 1/9] powerpc/pci: clean up direct access to sysdata by indirect ops Kumar Gala
2009-04-30 13:10 ` [PATCH 2/9] powerpc/pci: clean up direct access to sysdata by FSL platforms Kumar Gala
2009-04-30 13:10 ` [PATCH 3/9] powerpc/pci: clean up direct access to sysdata by 52xx platforms Kumar Gala
2009-04-30 13:10 ` [PATCH 4/9] powerpc/pci: clean up direct access to sysdata by 4xx platforms Kumar Gala
2009-04-30 13:10 ` [PATCH 5/9] powerpc/pci: clean up direct access to sysdata by CHRP platforms Kumar Gala
2009-04-30 13:10 ` [PATCH 6/9] powerpc/pci: clean up direct access to sysdata on tsi108 platforms Kumar Gala
2009-04-30 13:10 ` [PATCH 7/9] powerpc/pci: clean up direct access to sysdata by powermac platforms Kumar Gala
2009-04-30 13:10 ` [PATCH 8/9] powerpc/pci: clean up direct access to sysdata by RTAS Kumar Gala
2009-04-30 13:10 ` Kumar Gala [this message]
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