x86, pci: move arch/x86/pci/pci.h to arch/x86/include/asm/pci_x86.h

Impact: cleanup

Now that arch/x86/pci/pci.h is used in a number of other places as well,
move the lowlevel x86 pci definitions into the architecture include files.
(not to be confused with the existing arch/x86/include/asm/pci.h file,
which provides public details about x86 PCI)

Tested on: X86_32_UP, X86_32_SMP and X86_64_SMP

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 165 insertions, 0 deletions

diff --git a/arch/x86/include/asm/pci_x86.h b/arch/x86/include/asm/pci_x86.h
new file mode 100644
index 000000000000..e60fd3e14bdf
--- /dev/null
+++ b/arch/x86/include/asm/pci_x86.h
@@ -0,0 +1,165 @@
+/*
+ *      Low-Level PCI Access for i386 machines.
+ *
+ *      (c) 1999 Martin Mares <mj@ucw.cz>
+ */
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+#define PCI_PROBE_BIOS          0x0001
+#define PCI_PROBE_CONF1         0x0002
+#define PCI_PROBE_CONF2         0x0004
+#define PCI_PROBE_MMCONF        0x0008
+#define PCI_PROBE_MASK          0x000f
+#define PCI_PROBE_NOEARLY       0x0010
+
+#define PCI_NO_CHECKS           0x0400
+#define PCI_USE_PIRQ_MASK       0x0800
+#define PCI_ASSIGN_ROMS         0x1000
+#define PCI_BIOS_IRQ_SCAN       0x2000
+#define PCI_ASSIGN_ALL_BUSSES   0x4000
+#define PCI_CAN_SKIP_ISA_ALIGN  0x8000
+#define PCI_USE__CRS            0x10000
+#define PCI_CHECK_ENABLE_AMD_MMCONF     0x20000
+#define PCI_HAS_IO_ECS          0x40000
+#define PCI_NOASSIGN_ROMS       0x80000
+
+extern unsigned int pci_probe;
+extern unsigned long pirq_table_addr;
+
+enum pci_bf_sort_state {
+        pci_bf_sort_default,
+        pci_force_nobf,
+        pci_force_bf,
+        pci_dmi_bf,
+};
+
+/* pci-i386.c */
+
+extern unsigned int pcibios_max_latency;
+
+void pcibios_resource_survey(void);
+
+/* pci-pc.c */
+
+extern int pcibios_last_bus;
+extern struct pci_bus *pci_root_bus;
+extern struct pci_ops pci_root_ops;
+
+/* pci-irq.c */
+
+struct irq_info {
+        u8 bus, devfn;                  /* Bus, device and function */
+        struct {
+                u8 link;                /* IRQ line ID, chipset dependent,
+                                           0 = not routed */
+                u16 bitmap;             /* Available IRQs */
+        } __attribute__((packed)) irq[4];
+        u8 slot;                        /* Slot number, 0=onboard */
+        u8 rfu;
+} __attribute__((packed));
+
+struct irq_routing_table {
+        u32 signature;                  /* PIRQ_SIGNATURE should be here */
+        u16 version;                    /* PIRQ_VERSION */
+        u16 size;                       /* Table size in bytes */
+        u8 rtr_bus, rtr_devfn;          /* Where the interrupt router lies */
+        u16 exclusive_irqs;             /* IRQs devoted exclusively to
+                                           PCI usage */
+        u16 rtr_vendor, rtr_device;     /* Vendor and device ID of
+                                           interrupt router */
+        u32 miniport_data;              /* Crap */
+        u8 rfu[11];
+        u8 checksum;                    /* Modulo 256 checksum must give 0 */
+        struct irq_info slots[0];
+} __attribute__((packed));
+
+extern unsigned int pcibios_irq_mask;
+
+extern int pcibios_scanned;
+extern spinlock_t pci_config_lock;
+
+extern int (*pcibios_enable_irq)(struct pci_dev *dev);
+extern void (*pcibios_disable_irq)(struct pci_dev *dev);
+
+struct pci_raw_ops {
+        int (*read)(unsigned int domain, unsigned int bus, unsigned int devfn,
+                                                int reg, int len, u32 *val);
+        int (*write)(unsigned int domain, unsigned int bus, unsigned int devfn,
+                                                int reg, int len, u32 val);
+};
+
+extern struct pci_raw_ops *raw_pci_ops;
+extern struct pci_raw_ops *raw_pci_ext_ops;
+
+extern struct pci_raw_ops pci_direct_conf1;
+extern bool port_cf9_safe;
+
+/* arch_initcall level */
+extern int pci_direct_probe(void);
+extern void pci_direct_init(int type);
+extern void pci_pcbios_init(void);
+extern int pci_olpc_init(void);
+extern void __init dmi_check_pciprobe(void);
+extern void __init dmi_check_skip_isa_align(void);
+
+/* some common used subsys_initcalls */
+extern int __init pci_acpi_init(void);
+extern int __init pcibios_irq_init(void);
+extern int __init pci_visws_init(void);
+extern int __init pci_numaq_init(void);
+extern int __init pcibios_init(void);
+
+/* pci-mmconfig.c */
+
+extern int __init pci_mmcfg_arch_init(void);
+extern void __init pci_mmcfg_arch_free(void);
+
+/*
+ * AMD Fam10h CPUs are buggy, and cannot access MMIO config space
+ * on their northbrige except through the * %eax register. As such, you MUST
+ * NOT use normal IOMEM accesses, you need to only use the magic mmio-config
+ * accessor functions.
+ * In fact just use pci_config_*, nothing else please.
+ */
+static inline unsigned char mmio_config_readb(void __iomem *pos)
+{
+        u8 val;
+        asm volatile("movb (%1),%%al" : "=a" (val) : "r" (pos));
+        return val;
+}
+
+static inline unsigned short mmio_config_readw(void __iomem *pos)
+{
+        u16 val;
+        asm volatile("movw (%1),%%ax" : "=a" (val) : "r" (pos));
+        return val;
+}
+
+static inline unsigned int mmio_config_readl(void __iomem *pos)
+{
+        u32 val;
+        asm volatile("movl (%1),%%eax" : "=a" (val) : "r" (pos));
+        return val;
+}
+
+static inline void mmio_config_writeb(void __iomem *pos, u8 val)
+{
+        asm volatile("movb %%al,(%1)" : : "a" (val), "r" (pos) : "memory");
+}
+
+static inline void mmio_config_writew(void __iomem *pos, u16 val)
+{
+        asm volatile("movw %%ax,(%1)" : : "a" (val), "r" (pos) : "memory");
+}
+
+static inline void mmio_config_writel(void __iomem *pos, u32 val)
+{
+        asm volatile("movl %%eax,(%1)" : : "a" (val), "r" (pos) : "memory");
+}