Commit f8ef2705 authored by Paul Mackerras's avatar Paul Mackerras
Browse files

powerpc: Merge pci.h 



This involves some minor changes: a few unused functions that the
ppc32 pci.c provides are no longer declared here or exported;
pcibios_assign_all_busses now just refers to the pci_assign_all_buses
variable on both 32-bit and 64-bit; pcibios_scan_all_fns is now
just 0 instead of a function that always returns 0 on 64-bit.

Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 047ea784

arch/powerpc/kernel/pci_64.c

+1 −17
Original line number Diff line number Diff line
@@ -40,7 +40,7 @@ 
#endif



unsigned long pci_probe_only = 1;

unsigned long pci_assign_all_buses = 0;

int pci_assign_all_buses = 0;



/*

 * legal IO pages under MAX_ISA_PORT.  This is to ensure we don't touch
@@ -55,11 +55,6 @@ static void fixup_resource(struct resource *res, struct pci_dev *dev); 
static void do_bus_setup(struct pci_bus *bus);

#endif



unsigned int pcibios_assign_all_busses(void)

{

	return pci_assign_all_buses;

}



/* pci_io_base -- the base address from which io bars are offsets.

 * This is the lowest I/O base address (so bar values are always positive),

 * and it *must* be the start of ISA space if an ISA bus exists because
@@ -1186,17 +1181,6 @@ void phbs_remap_io(void) 
		remap_bus_range(hose->bus);

}



/*

 * ppc64 can have multifunction devices that do not respond to function 0.

 * In this case we must scan all functions.

 * XXX this can go now, we use the OF device tree in all the

 * cases that caused problems. -- paulus

 */

int pcibios_scan_all_fns(struct pci_bus *bus, int devfn)

{

       return 0;

}



static void __devinit fixup_resource(struct resource *res, struct pci_dev *dev)

{

	struct pci_controller *hose = pci_bus_to_host(dev->bus);

arch/powerpc/kernel/ppc_ksyms.c

+0 −3
Original line number Diff line number Diff line
@@ -146,9 +146,6 @@ 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);

EXPORT_SYMBOL(pci_resource_to_bus);

EXPORT_SYMBOL(pci_phys_to_bus);

EXPORT_SYMBOL(pci_bus_to_phys);

#endif /* CONFIG_PCI */



#ifdef CONFIG_NOT_COHERENT_CACHE

include/asm-ppc64/pci.h→include/asm-powerpc/pci.h

+82 −28
Original line number Diff line number Diff line 
#ifndef __PPC64_PCI_H

#define __PPC64_PCI_H

#ifndef __ASM_POWERPC_PCI_H

#define __ASM_POWERPC_PCI_H

#ifdef __KERNEL__



/*
@@ -18,6 +18,7 @@ 
#include <asm/scatterlist.h>

#include <asm/io.h>

#include <asm/prom.h>

#include <asm/pci-bridge.h>



#include <asm-generic/pci-dma-compat.h>
@@ -26,11 +27,21 @@ 


struct pci_dev;



#ifdef CONFIG_PPC_ISERIES

/* Values for the `which' argument to sys_pciconfig_iobase syscall.  */

#define IOBASE_BRIDGE_NUMBER	0

#define IOBASE_MEMORY		1

#define IOBASE_IO		2

#define IOBASE_ISA_IO		3

#define IOBASE_ISA_MEM		4



/*

 * Set this to 1 if you want the kernel to re-assign all PCI

 * bus numbers

 */

extern int pci_assign_all_buses;

#define pcibios_assign_all_busses()	(pci_assign_all_buses)



#define pcibios_scan_all_fns(a, b)	0

#else

extern int pcibios_scan_all_fns(struct pci_bus *bus, int devfn);

#endif



static inline void pcibios_set_master(struct pci_dev *dev)

{
@@ -50,6 +61,7 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) 
	return channel ? 15 : 14;

}



#ifdef CONFIG_PPC64

#define HAVE_ARCH_PCI_MWI 1

static inline int pcibios_prep_mwi(struct pci_dev *dev)

{
@@ -64,12 +76,10 @@ static inline int pcibios_prep_mwi(struct pci_dev *dev) 
	return 0;

}



extern unsigned int pcibios_assign_all_busses(void);



extern struct dma_mapping_ops pci_dma_ops;



/* For DAC DMA, we currently don't support it by default, but

 * we let the platform override this

 * we let 64-bit platforms override this.

 */

static inline int pci_dac_dma_supported(struct pci_dev *hwdev,u64 mask)

{
@@ -102,6 +112,35 @@ extern int pci_domain_nr(struct pci_bus *bus); 
/* Decide whether to display the domain number in /proc */

extern int pci_proc_domain(struct pci_bus *bus);



#else /* 32-bit */



#ifdef CONFIG_PCI

static inline void pci_dma_burst_advice(struct pci_dev *pdev,

					enum pci_dma_burst_strategy *strat,

					unsigned long *strategy_parameter)

{

	*strat = PCI_DMA_BURST_INFINITY;

	*strategy_parameter = ~0UL;

}

#endif



/*

 * At present there are very few 32-bit PPC machines that can have

 * memory above the 4GB point, and we don't support that.

 */

#define pci_dac_dma_supported(pci_dev, mask)	(0)



/* Return the index of the PCI controller for device PDEV. */

#define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index



/* Set the name of the bus as it appears in /proc/bus/pci */

static inline int pci_proc_domain(struct pci_bus *bus)

{

	return 0;

}



#endif /* CONFIG_PPC64 */



struct vm_area_struct;

/* Map a range of PCI memory or I/O space for a device into user space */

int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
@@ -110,6 +149,7 @@ int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, 
/* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */

#define HAVE_PCI_MMAP	1



#ifdef CONFIG_PPC64

/* pci_unmap_{single,page} is not a nop, thus... */

#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)	\

	dma_addr_t ADDR_NAME;
@@ -124,22 +164,40 @@ int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, 
#define pci_unmap_len_set(PTR, LEN_NAME, VAL)		\

	(((PTR)->LEN_NAME) = (VAL))



/* The PCI address space does equal the physical memory

 * address space.  The networking and block device layers use

/* The PCI address space does not equal the physical memory address

 * space (we have an IOMMU).  The IDE and SCSI device layers use

 * this boolean for bounce buffer decisions.

 */

#define PCI_DMA_BUS_IS_PHYS	(0)



extern void

pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,

#else /* 32-bit */



/* The PCI address space does equal the physical memory

 * address space (no IOMMU).  The IDE and SCSI device layers use

 * this boolean for bounce buffer decisions.

 */

#define PCI_DMA_BUS_IS_PHYS     (1)



/* pci_unmap_{page,single} is a nop so... */

#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)

#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)

#define pci_unmap_addr(PTR, ADDR_NAME)		(0)

#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL)	do { } while (0)

#define pci_unmap_len(PTR, LEN_NAME)		(0)

#define pci_unmap_len_set(PTR, LEN_NAME, VAL)	do { } while (0)



#endif /* CONFIG_PPC64 */

	

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,

extern void pcibios_bus_to_resource(struct pci_dev *dev,

			struct resource *res,

			struct pci_bus_region *region);



static inline struct resource *

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

static inline struct resource *pcibios_select_root(struct pci_dev *pdev,

			struct resource *res)

{

	struct resource *root = NULL;
@@ -151,14 +209,12 @@ pcibios_select_root(struct pci_dev *pdev, struct resource *res) 
	return root;

}



extern int

unmap_bus_range(struct pci_bus *bus);

extern int unmap_bus_range(struct pci_bus *bus);



extern int

remap_bus_range(struct pci_bus *bus);

extern int remap_bus_range(struct pci_bus *bus);



extern void

pcibios_fixup_device_resources(struct pci_dev *dev, struct pci_bus *bus);

extern void pcibios_fixup_device_resources(struct pci_dev *dev,

			struct pci_bus *bus);



extern struct pci_controller *init_phb_dynamic(struct device_node *dn);
@@ -180,14 +236,12 @@ extern pgprot_t pci_phys_mem_access_prot(struct file *file, 
					 unsigned long size,

					 pgprot_t prot);



#ifdef CONFIG_PPC_MULTIPLATFORM

#if defined(CONFIG_PPC_MULTIPLATFORM) || defined(CONFIG_PPC32)

#define HAVE_ARCH_PCI_RESOURCE_TO_USER

extern void pci_resource_to_user(const struct pci_dev *dev, int bar,

				 const struct resource *rsrc,

				 u64 *start, u64 *end);

#endif /* CONFIG_PPC_MULTIPLATFORM */



#endif /* CONFIG_PPC_MULTIPLATFORM || CONFIG_PPC32 */



#endif	/* __KERNEL__ */



#endif /* __PPC64_PCI_H */
 
#endif /* __ASM_POWERPC_PCI_H */

include/asm-powerpc/ppc-pci.h

+0 −2
Original line number Diff line number Diff line
@@ -48,8 +48,6 @@ extern void pSeries_final_fixup(void); 
extern void pSeries_irq_bus_setup(struct pci_bus *bus);



extern unsigned long pci_probe_only;

extern unsigned long pci_assign_all_buses;

extern int pci_read_irq_line(struct pci_dev *pci_dev);



/* ---- EEH internal-use-only related routines ---- */

#ifdef CONFIG_EEH

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