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arm/PCI: get rid of device resource fixups

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Tell the PCI core about host bridge address translation so it can take
care of bus-to-resource conversion for us.

CC: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Bjorn Helgaas 2012-02-23 20:19:01 -07:00
parent c04d9e3579
commit 9f786d033d
19 changed files with 57 additions and 117 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm/common/it8152.c
View File

@ -299,8 +299,8 @@ int __init it8152_pci_setup(int nr, struct pci_sys_data *sys)
goto err1;
}
pci_add_resource(&sys->resources, &it8152_io);
pci_add_resource(&sys->resources, &it8152_mem);
pci_add_resource_offset(&sys->resources, &it8152_io, sys->io_offset);
pci_add_resource_offset(&sys->resources, &it8152_mem, sys->mem_offset);
if (platform_notify || platform_notify_remove) {
printk(KERN_ERR "PCI: Can't use platform_notify\n");

8
arch/arm/include/asm/pci.h
View File

@ -57,13 +57,7 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
enum pci_mmap_state mmap_state, int write_combine);
extern void
pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
struct resource *res);
extern void
pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
struct pci_bus_region *region);
#define ARCH_HAS_GENERIC_PCI_OFFSETS
/*
* Dummy implementation; always return 0.

69
arch/arm/kernel/bios32.c
View File

@ -293,28 +293,6 @@ static inline int pdev_bad_for_parity(struct pci_dev *dev)
}
/*
* Adjust the device resources from bus-centric to Linux-centric.
*/
static void __devinit
pdev_fixup_device_resources(struct pci_sys_data *root, struct pci_dev *dev)
{
resource_size_t offset;
int i;
for (i = 0; i < PCI_NUM_RESOURCES; i++) {
if (dev->resource[i].start == 0)
continue;
if (dev->resource[i].flags & IORESOURCE_MEM)
offset = root->mem_offset;
else
offset = root->io_offset;
dev->resource[i].start += offset;
dev->resource[i].end += offset;
}
}
/*
* pcibios_fixup_bus - Called after each bus is probed,
* but before its children are examined.
@ -332,8 +310,6 @@ void pcibios_fixup_bus(struct pci_bus *bus)
list_for_each_entry(dev, &bus->devices, bus_list) {
u16 status;
pdev_fixup_device_resources(root, dev);
pci_read_config_word(dev, PCI_STATUS, &status);
/*
@ -398,43 +374,6 @@ void pcibios_fixup_bus(struct pci_bus *bus)
EXPORT_SYMBOL(pcibios_fixup_bus);
#endif
/*
* Convert from Linux-centric to bus-centric addresses for bridge devices.
*/
void
pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
struct resource *res)
{
struct pci_sys_data *root = dev->sysdata;
unsigned long offset = 0;
if (res->flags & IORESOURCE_IO)
offset = root->io_offset;
if (res->flags & IORESOURCE_MEM)
offset = root->mem_offset;
region->start = res->start - offset;
region->end = res->end - offset;
}
EXPORT_SYMBOL(pcibios_resource_to_bus);
void __devinit
pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
struct pci_bus_region *region)
{
struct pci_sys_data *root = dev->sysdata;
unsigned long offset = 0;
if (res->flags & IORESOURCE_IO)
offset = root->io_offset;
if (res->flags & IORESOURCE_MEM)
offset = root->mem_offset;
res->start = region->start + offset;
res->end = region->end + offset;
}
EXPORT_SYMBOL(pcibios_bus_to_resource);
/*
* Swizzle the device pin each time we cross a bridge.
* This might update pin and returns the slot number.
@ -496,10 +435,10 @@ static void __init pcibios_init_hw(struct hw_pci *hw)
if (ret > 0) {
if (list_empty(&sys->resources)) {
pci_add_resource(&sys->resources,
&ioport_resource);
pci_add_resource(&sys->resources,
&iomem_resource);
pci_add_resource_offset(&sys->resources,
&ioport_resource, sys->io_offset);
pci_add_resource_offset(&sys->resources,
&iomem_resource, sys->mem_offset);
}
sys->bus = hw->scan(nr, sys);

4
arch/arm/mach-cns3xxx/pcie.c
View File

@ -155,8 +155,8 @@ static int cns3xxx_pci_setup(int nr, struct pci_sys_data *sys)
BUG_ON(request_resource(&iomem_resource, res_io) ||
request_resource(&iomem_resource, res_mem));
pci_add_resource(&sys->resources, res_io);
pci_add_resource(&sys->resources, res_mem);
pci_add_resource_offset(&sys->resources, res_io, sys->io_offset);
pci_add_resource_offset(&sys->resources, res_mem, sys->mem_offset);
return 1;
}

4
arch/arm/mach-dove/pcie.c
View File

@ -69,7 +69,7 @@ static int __init dove_pcie_setup(int nr, struct pci_sys_data *sys)
pp->res[0].flags = IORESOURCE_IO;
if (request_resource(&ioport_resource, &pp->res[0]))
panic("Request PCIe IO resource failed\n");
pci_add_resource(&sys->resources, &pp->res[0]);
pci_add_resource_offset(&sys->resources, &pp->res[0], sys->io_offset);
/*
* IORESOURCE_MEM
@ -88,7 +88,7 @@ static int __init dove_pcie_setup(int nr, struct pci_sys_data *sys)
pp->res[1].flags = IORESOURCE_MEM;
if (request_resource(&iomem_resource, &pp->res[1]))
panic("Request PCIe Memory resource failed\n");
pci_add_resource(&sys->resources, &pp->res[1]);
pci_add_resource_offset(&sys->resources, &pp->res[1], sys->mem_offset);
return 1;
}

8
arch/arm/mach-footbridge/dc21285.c
View File

@ -275,11 +275,13 @@ int __init dc21285_setup(int nr, struct pci_sys_data *sys)
allocate_resource(&iomem_resource, &res[0], 0x40000000,
0x80000000, 0xffffffff, 0x40000000, NULL, NULL);
pci_add_resource(&sys->resources, &ioport_resource);
pci_add_resource(&sys->resources, &res[0]);
pci_add_resource(&sys->resources, &res[1]);
sys->mem_offset = DC21285_PCI_MEM;
pci_add_resource_offset(&sys->resources,
&ioport_resource, sys->io_offset);
pci_add_resource_offset(&sys->resources, &res[0], sys->mem_offset);
pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset);
return 1;
}

7
arch/arm/mach-integrator/pci_v3.c
View File

@ -378,9 +378,10 @@ static int __init pci_v3_setup_resources(struct pci_sys_data *sys)
* the mem resource for this bus
* the prefetch mem resource for this bus
*/
pci_add_resource(&sys->resources, &ioport_resource);
pci_add_resource(&sys->resources, &non_mem);
pci_add_resource(&sys->resources, &pre_mem);
pci_add_resource_offset(&sys->resources,
&ioport_resource, sys->io_offset);
pci_add_resource_offset(&sys->resources, &non_mem, sys->mem_offset);
pci_add_resource_offset(&sys->resources, &pre_mem, sys->mem_offset);
return 1;
}

4
arch/arm/mach-iop13xx/pci.c
View File

@ -1084,8 +1084,8 @@ int iop13xx_pci_setup(int nr, struct pci_sys_data *sys)
request_resource(&ioport_resource, &res[0]);
request_resource(&iomem_resource, &res[1]);
pci_add_resource(&sys->resources, &res[0]);
pci_add_resource(&sys->resources, &res[1]);
pci_add_resource_offset(&sys->resources, &res[0], sys->io_offset);
pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset);
return 1;
}

6
arch/arm/mach-ixp2000/pci.c
View File

@ -243,8 +243,10 @@ int ixp2000_pci_setup(int nr, struct pci_sys_data *sys)
if (nr >= 1)
return 0;
pci_add_resource(&sys->resources, &ixp2000_pci_io_space);
pci_add_resource(&sys->resources, &ixp2000_pci_mem_space);
pci_add_resource_offset(&sys->resources,
&ixp2000_pci_io_space, sys->io_offset);
pci_add_resource_offset(&sys->resources,
&ixp2000_pci_mem_space, sys->mem_offset);
return 1;
}

6
arch/arm/mach-ixp23xx/pci.c
View File

@ -281,8 +281,10 @@ int ixp23xx_pci_setup(int nr, struct pci_sys_data *sys)
if (nr >= 1)
return 0;
pci_add_resource(&sys->resources, &ixp23xx_pci_io_space);
pci_add_resource(&sys->resources, &ixp23xx_pci_mem_space);
pci_add_resource_offset(&sys->resources,
&ixp23xx_pci_io_space, sys->io_offset);
pci_add_resource_offset(&sys->resources,
&ixp23xx_pci_mem_space, sys->mem_offset);
return 1;
}

4
arch/arm/mach-ixp4xx/common-pci.c
View File

@ -472,8 +472,8 @@ int ixp4xx_setup(int nr, struct pci_sys_data *sys)
request_resource(&ioport_resource, &res[0]);
request_resource(&iomem_resource, &res[1]);
pci_add_resource(&sys->resources, &res[0]);
pci_add_resource(&sys->resources, &res[1]);
pci_add_resource_offset(&sys->resources, &res[0], sys->io_offset);
pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset);
platform_notify = ixp4xx_pci_platform_notify;
platform_notify_remove = ixp4xx_pci_platform_notify_remove;

4
arch/arm/mach-kirkwood/pcie.c
View File

@ -198,9 +198,9 @@ static int __init kirkwood_pcie_setup(int nr, struct pci_sys_data *sys)
if (request_resource(&iomem_resource, &pp->res[1]))
panic("Request PCIe%d Memory resource failed\n", index);
pci_add_resource(&sys->resources, &pp->res[0]);
pci_add_resource(&sys->resources, &pp->res[1]);
sys->io_offset = 0;
pci_add_resource_offset(&sys->resources, &pp->res[0], sys->io_offset);
pci_add_resource_offset(&sys->resources, &pp->res[1], sys->mem_offset);
/*
* Generic PCIe unit setup.

4
arch/arm/mach-ks8695/pci.c
View File

@ -169,8 +169,8 @@ static int __init ks8695_pci_setup(int nr, struct pci_sys_data *sys)
request_resource(&iomem_resource, &pci_mem);
request_resource(&ioport_resource, &pci_io);
pci_add_resource(&sys->resources, &pci_io);
pci_add_resource(&sys->resources, &pci_mem);
pci_add_resource_offset(&sys->resources, &pci_io, sys->io_offset);
pci_add_resource_offset(&sys->resources, &pci_mem, sys->mem_offset);
/* Assign and enable processor bridge */
ks8695_local_writeconfig(PCI_BASE_ADDRESS_0, KS8695_PCIMEM_PA);

4
arch/arm/mach-mv78xx0/pcie.c
View File

@ -155,8 +155,8 @@ static int __init mv78xx0_pcie_setup(int nr, struct pci_sys_data *sys)
orion_pcie_set_local_bus_nr(pp->base, sys->busnr);
orion_pcie_setup(pp->base);
pci_add_resource(&sys->resources, &pp->res[0]);
pci_add_resource(&sys->resources, &pp->res[1]);
pci_add_resource_offset(&sys->resources, &pp->res[0], sys->io_offset);
pci_add_resource_offset(&sys->resources, &pp->res[1], sys->mem_offset);
return 1;
}

14
arch/arm/mach-orion5x/pci.c
View File

@ -171,13 +171,14 @@ static int __init pcie_setup(struct pci_sys_data *sys)
/*
* IORESOURCE_IO
*/
sys->io_offset = 0;
res[0].name = "PCIe I/O Space";
res[0].flags = IORESOURCE_IO;
res[0].start = ORION5X_PCIE_IO_BUS_BASE;
res[0].end = res[0].start + ORION5X_PCIE_IO_SIZE - 1;
if (request_resource(&ioport_resource, &res[0]))
panic("Request PCIe IO resource failed\n");
pci_add_resource(&sys->resources, &res[0]);
pci_add_resource_offset(&sys->resources, &res[0], sys->io_offset);
/*
* IORESOURCE_MEM
@ -188,9 +189,7 @@ static int __init pcie_setup(struct pci_sys_data *sys)
res[1].end = res[1].start + ORION5X_PCIE_MEM_SIZE - 1;
if (request_resource(&iomem_resource, &res[1]))
panic("Request PCIe Memory resource failed\n");
pci_add_resource(&sys->resources, &res[1]);
sys->io_offset = 0;
pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset);
return 1;
}
@ -499,13 +498,14 @@ static int __init pci_setup(struct pci_sys_data *sys)
/*
* IORESOURCE_IO
*/
sys->io_offset = 0;
res[0].name = "PCI I/O Space";
res[0].flags = IORESOURCE_IO;
res[0].start = ORION5X_PCI_IO_BUS_BASE;
res[0].end = res[0].start + ORION5X_PCI_IO_SIZE - 1;
if (request_resource(&ioport_resource, &res[0]))
panic("Request PCI IO resource failed\n");
pci_add_resource(&sys->resources, &res[0]);
pci_add_resource_offset(&sys->resources, &res[0], sys->io_offset);
/*
* IORESOURCE_MEM
@ -516,9 +516,7 @@ static int __init pci_setup(struct pci_sys_data *sys)
res[1].end = res[1].start + ORION5X_PCI_MEM_SIZE - 1;
if (request_resource(&iomem_resource, &res[1]))
panic("Request PCI Memory resource failed\n");
pci_add_resource(&sys->resources, &res[1]);
sys->io_offset = 0;
pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset);
return 1;
}

8
arch/arm/mach-sa1100/pci-nanoengine.c
View File

@ -244,9 +244,11 @@ static int __init pci_nanoengine_setup_resources(struct pci_sys_data *sys)
printk(KERN_ERR "PCI: unable to allocate prefetchable\n");
return -EBUSY;
}
pci_add_resource(&sys->resources, &pci_io_ports);
pci_add_resource(&sys->resources, &pci_non_prefetchable_memory);
pci_add_resource(&sys->resources, &pci_prefetchable_memory);
pci_add_resource_offset(&sys->resources, &pci_io_ports, sys->io_offset);
pci_add_resource_offset(&sys->resources,
&pci_non_prefetchable_memory, sys->mem_offset);
pci_add_resource_offset(&sys->resources,
&pci_prefetchable_memory, sys->mem_offset);
return 1;
}

6
arch/arm/mach-tegra/pcie.c
View File

@ -408,7 +408,7 @@ static int tegra_pcie_setup(int nr, struct pci_sys_data *sys)
pp->res[0].flags = IORESOURCE_IO;
if (request_resource(&ioport_resource, &pp->res[0]))
panic("Request PCIe IO resource failed\n");
pci_add_resource(&sys->resources, &pp->res[0]);
pci_add_resource_offset(&sys->resources, &pp->res[0], sys->io_offset);
/*
* IORESOURCE_MEM
@ -427,7 +427,7 @@ static int tegra_pcie_setup(int nr, struct pci_sys_data *sys)
pp->res[1].flags = IORESOURCE_MEM;
if (request_resource(&iomem_resource, &pp->res[1]))
panic("Request PCIe Memory resource failed\n");
pci_add_resource(&sys->resources, &pp->res[1]);
pci_add_resource_offset(&sys->resources, &pp->res[1], sys->mem_offset);
/*
* IORESOURCE_MEM | IORESOURCE_PREFETCH
@ -446,7 +446,7 @@ static int tegra_pcie_setup(int nr, struct pci_sys_data *sys)
pp->res[2].flags = IORESOURCE_MEM | IORESOURCE_PREFETCH;
if (request_resource(&iomem_resource, &pp->res[2]))
panic("Request PCIe Prefetch Memory resource failed\n");
pci_add_resource(&sys->resources, &pp->res[2]);
pci_add_resource_offset(&sys->resources, &pp->res[2], sys->mem_offset);
return 1;
}

6
arch/arm/mach-versatile/pci.c
View File

@ -219,9 +219,9 @@ static int __init pci_versatile_setup_resources(struct list_head *resources)
* the mem resource for this bus
* the prefetch mem resource for this bus
*/
pci_add_resource(resources, &io_mem);
pci_add_resource(resources, &non_mem);
pci_add_resource(resources, &pre_mem);
pci_add_resource_offset(resources, &io_mem, sys->io_offset);
pci_add_resource_offset(resources, &non_mem, sys->mem_offset);
pci_add_resource_offset(resources, &pre_mem, sys->mem_offset);
goto out;

4
arch/arm/plat-iop/pci.c
View File

@ -215,8 +215,8 @@ int iop3xx_pci_setup(int nr, struct pci_sys_data *sys)
sys->mem_offset = IOP3XX_PCI_LOWER_MEM_PA - *IOP3XX_OMWTVR0;
sys->io_offset = IOP3XX_PCI_LOWER_IO_PA - *IOP3XX_OIOWTVR;
pci_add_resource(&sys->resources, &res[0]);
pci_add_resource(&sys->resources, &res[1]);
pci_add_resource_offset(&sys->resources, &res[0], sys->io_offset);
pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset);
return 1;
}