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Commit 6a506238 authored by Kumar Gala's avatar Kumar Gala
Browse files

[POWERPC] Removed dead code related to PCI on ppc32 



There are no in kernel users of any off these functions and some of
them were not even EXPORT_SYMBOL:

- pci_bus_io_base()
- pci_bus_io_base_phys()
- pci_bus_mem_base_phys()
- pci_resource_to_bus()
- phys_to_bus()
- pci_phys_to_bus()
- pci_bus_to_phys()
- pci_init_resource()
- resource_fixup()

Signed-off-by: default avatarKumar Gala <galak@kernel.crashing.org>
parent bf440b71

arch/powerpc/kernel/pci_32.c

+0 −112
Original line number Diff line number Diff line
@@ -1319,12 +1319,6 @@ pcibios_init(void) 


subsys_initcall(pcibios_init);



unsigned long resource_fixup(struct pci_dev * dev, struct resource * res,

			     unsigned long start, unsigned long size)

{

	return start;

}



void __init pcibios_fixup_bus(struct pci_bus *bus)

{

	struct pci_controller *hose = (struct pci_controller *) bus->sysdata;
@@ -1508,53 +1502,6 @@ pci_bus_to_hose(int bus) 
	return NULL;

}



void __iomem *

pci_bus_io_base(unsigned int bus)

{

	struct pci_controller *hose;



	hose = pci_bus_to_hose(bus);

	if (!hose)

		return NULL;

	return hose->io_base_virt;

}



unsigned long

pci_bus_io_base_phys(unsigned int bus)

{

	struct pci_controller *hose;



	hose = pci_bus_to_hose(bus);

	if (!hose)

		return 0;

	return hose->io_base_phys;

}



unsigned long

pci_bus_mem_base_phys(unsigned int bus)

{

	struct pci_controller *hose;



	hose = pci_bus_to_hose(bus);

	if (!hose)

		return 0;

	return hose->pci_mem_offset;

}



unsigned long

pci_resource_to_bus(struct pci_dev *pdev, struct resource *res)

{

	/* Hack alert again ! See comments in chrp_pci.c

	 */

	struct pci_controller* hose =

		(struct pci_controller *)pdev->sysdata;

	if (hose && res->flags & IORESOURCE_MEM)

		return res->start - hose->pci_mem_offset;

	/* We may want to do something with IOs here... */

	return res->start;

}





static struct resource *__pci_mmap_make_offset(struct pci_dev *dev,

					       resource_size_t *offset,

					       enum pci_mmap_state mmap_state)
@@ -1725,53 +1672,6 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, 
	return ret;

}



/* Obsolete functions. Should be removed once the symbios driver

 * is fixed

 */

unsigned long

phys_to_bus(unsigned long pa)

{

	struct pci_controller *hose;

	int i;



	for (hose = hose_head; hose; hose = hose->next) {

		for (i = 0; i < 3; ++i) {

			if (pa >= hose->mem_resources[i].start

			    && pa <= hose->mem_resources[i].end) {

				/*

				 * XXX the hose->pci_mem_offset really

				 * only applies to mem_resources[0].

				 * We need a way to store an offset for

				 * the others.  -- paulus

				 */

				if (i == 0)

					pa -= hose->pci_mem_offset;

				return pa;

			}

		}

	}

	/* hmmm, didn't find it */

	return 0;

}



unsigned long

pci_phys_to_bus(unsigned long pa, int busnr)

{

	struct pci_controller* hose = pci_bus_to_hose(busnr);

	if (!hose)

		return pa;

	return pa - hose->pci_mem_offset;

}



unsigned long

pci_bus_to_phys(unsigned int ba, int busnr)

{

	struct pci_controller* hose = pci_bus_to_hose(busnr);

	if (!hose)

		return ba;

	return ba + hose->pci_mem_offset;

}



/* Provide information on locations of various I/O regions in physical

 * memory.  Do this on a per-card basis so that we choose the right

 * root bridge.
@@ -1853,18 +1753,6 @@ void pci_resource_to_user(const struct pci_dev *dev, int bar, 
	*end = rsrc->end - offset;

}



void __init pci_init_resource(struct resource *res, resource_size_t start,

			      resource_size_t end, int flags, char *name)

{

	res->start = start;

	res->end = end;

	res->flags = flags;

	res->name = name;

	res->parent = NULL;

	res->sibling = NULL;

	res->child = NULL;

}



unsigned long pci_address_to_pio(phys_addr_t address)

{

	struct pci_controller* hose = hose_head;

arch/powerpc/kernel/ppc_ksyms.c

+0 −3
Original line number Diff line number Diff line
@@ -106,9 +106,6 @@ EXPORT_SYMBOL(isa_mem_base); 
EXPORT_SYMBOL(pci_dram_offset);

EXPORT_SYMBOL(pci_alloc_consistent);

EXPORT_SYMBOL(pci_free_consistent);

EXPORT_SYMBOL(pci_bus_io_base);

EXPORT_SYMBOL(pci_bus_io_base_phys);

EXPORT_SYMBOL(pci_bus_mem_base_phys);

EXPORT_SYMBOL(pci_bus_to_hose);

#endif /* CONFIG_PCI */

include/asm-powerpc/pci-bridge.h

+0 −12
Original line number Diff line number Diff line
@@ -9,21 +9,9 @@ 
struct device_node;

struct pci_controller;



/*

 * pci_io_base returns the memory address at which you can access

 * the I/O space for PCI bus number `bus' (or NULL on error).

 */

extern void __iomem *pci_bus_io_base(unsigned int bus);

extern unsigned long pci_bus_io_base_phys(unsigned int bus);

extern unsigned long pci_bus_mem_base_phys(unsigned int bus);



/* Allocate a new PCI host bridge structure */

extern struct pci_controller* pcibios_alloc_controller(void);



/* Helper function for setting up resources */

extern void pci_init_resource(struct resource *res, resource_size_t start,

			      resource_size_t end, int flags, char *name);



/* Get the PCI host controller for a bus */

extern struct pci_controller* pci_bus_to_hose(int bus);