summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorPaul Mackerras <paulus@samba.org>2005-11-19 20:46:04 +1100
committerPaul Mackerras <paulus@samba.org>2005-11-19 20:46:04 +1100
commitf8ef2705969e0409efedeb889445da67806ba9ea (patch)
tree661acd5711b2bb662c659bb62adea116ce6d45f0
parent047ea7846565917c4a666635fa1fa4b5c587cd55 (diff)
downloadlinux-sh-f8ef2705969e0409efedeb889445da67806ba9ea.tar.gz
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: Paul Mackerras <paulus@samba.org>
-rw-r--r--arch/powerpc/kernel/pci_64.c18
-rw-r--r--arch/powerpc/kernel/ppc_ksyms.c3
-rw-r--r--include/asm-powerpc/pci.h (renamed from include/asm-ppc64/pci.h)110
-rw-r--r--include/asm-powerpc/ppc-pci.h2
4 files changed, 83 insertions, 50 deletions
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 5a5b24685081..8b6008ab217d 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -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);
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index 59846b40d521..af4d1bc9a2eb 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -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
diff --git a/include/asm-ppc64/pci.h b/include/asm-powerpc/pci.h
index fafdf885a3cc..d5934a076bd0 100644
--- a/include/asm-ppc64/pci.h
+++ b/include/asm-powerpc/pci.h
@@ -1,5 +1,5 @@
-#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)
+
+#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,
+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 */
diff --git a/include/asm-powerpc/ppc-pci.h b/include/asm-powerpc/ppc-pci.h
index 2e36e5a7f4f3..36cdc869e580 100644
--- a/include/asm-powerpc/ppc-pci.h
+++ b/include/asm-powerpc/ppc-pci.h
@@ -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