i386: move pci

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 302 deletions

diff --git a/arch/i386/pci/direct.c b/arch/i386/pci/direct.c
deleted file mode 100644
index 431c9a51b157..000000000000
--- a/arch/i386/pci/direct.c
+++ /dev/null
@@ -1,302 +0,0 @@
-/*
- * direct.c - Low-level direct PCI config space access
- */
-
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/dmi.h>
-#include "pci.h"
-
-/*
- * Functions for accessing PCI configuration space with type 1 accesses
- */
-
-#define PCI_CONF1_ADDRESS(bus, devfn, reg) \
-	(0x80000000 | (bus << 16) | (devfn << 8) | (reg & ~3))
-
-int pci_conf1_read(unsigned int seg, unsigned int bus,
-			  unsigned int devfn, int reg, int len, u32 *value)
-{
-	unsigned long flags;
-
-	if ((bus > 255) || (devfn > 255) || (reg > 255)) {
-		*value = -1;
-		return -EINVAL;
-	}
-
-	spin_lock_irqsave(&pci_config_lock, flags);
-
-	outl(PCI_CONF1_ADDRESS(bus, devfn, reg), 0xCF8);
-
-	switch (len) {
-	case 1:
-		*value = inb(0xCFC + (reg & 3));
-		break;
-	case 2:
-		*value = inw(0xCFC + (reg & 2));
-		break;
-	case 4:
-		*value = inl(0xCFC);
-		break;
-	}
-
-	spin_unlock_irqrestore(&pci_config_lock, flags);
-
-	return 0;
-}
-
-int pci_conf1_write(unsigned int seg, unsigned int bus,
-			   unsigned int devfn, int reg, int len, u32 value)
-{
-	unsigned long flags;
-
-	if ((bus > 255) || (devfn > 255) || (reg > 255)) 
-		return -EINVAL;
-
-	spin_lock_irqsave(&pci_config_lock, flags);
-
-	outl(PCI_CONF1_ADDRESS(bus, devfn, reg), 0xCF8);
-
-	switch (len) {
-	case 1:
-		outb((u8)value, 0xCFC + (reg & 3));
-		break;
-	case 2:
-		outw((u16)value, 0xCFC + (reg & 2));
-		break;
-	case 4:
-		outl((u32)value, 0xCFC);
-		break;
-	}
-
-	spin_unlock_irqrestore(&pci_config_lock, flags);
-
-	return 0;
-}
-
-#undef PCI_CONF1_ADDRESS
-
-struct pci_raw_ops pci_direct_conf1 = {
-	.read =		pci_conf1_read,
-	.write =	pci_conf1_write,
-};
-
-
-/*
- * Functions for accessing PCI configuration space with type 2 accesses
- */
-
-#define PCI_CONF2_ADDRESS(dev, reg)	(u16)(0xC000 | (dev << 8) | reg)
-
-static int pci_conf2_read(unsigned int seg, unsigned int bus,
-			  unsigned int devfn, int reg, int len, u32 *value)
-{
-	unsigned long flags;
-	int dev, fn;
-
-	if ((bus > 255) || (devfn > 255) || (reg > 255)) {
-		*value = -1;
-		return -EINVAL;
-	}
-
-	dev = PCI_SLOT(devfn);
-	fn = PCI_FUNC(devfn);
-
-	if (dev & 0x10) 
-		return PCIBIOS_DEVICE_NOT_FOUND;
-
-	spin_lock_irqsave(&pci_config_lock, flags);
-
-	outb((u8)(0xF0 | (fn << 1)), 0xCF8);
-	outb((u8)bus, 0xCFA);
-
-	switch (len) {
-	case 1:
-		*value = inb(PCI_CONF2_ADDRESS(dev, reg));
-		break;
-	case 2:
-		*value = inw(PCI_CONF2_ADDRESS(dev, reg));
-		break;
-	case 4:
-		*value = inl(PCI_CONF2_ADDRESS(dev, reg));
-		break;
-	}
-
-	outb(0, 0xCF8);
-
-	spin_unlock_irqrestore(&pci_config_lock, flags);
-
-	return 0;
-}
-
-static int pci_conf2_write(unsigned int seg, unsigned int bus,
-			   unsigned int devfn, int reg, int len, u32 value)
-{
-	unsigned long flags;
-	int dev, fn;
-
-	if ((bus > 255) || (devfn > 255) || (reg > 255)) 
-		return -EINVAL;
-
-	dev = PCI_SLOT(devfn);
-	fn = PCI_FUNC(devfn);
-
-	if (dev & 0x10) 
-		return PCIBIOS_DEVICE_NOT_FOUND;
-
-	spin_lock_irqsave(&pci_config_lock, flags);
-
-	outb((u8)(0xF0 | (fn << 1)), 0xCF8);
-	outb((u8)bus, 0xCFA);
-
-	switch (len) {
-	case 1:
-		outb((u8)value, PCI_CONF2_ADDRESS(dev, reg));
-		break;
-	case 2:
-		outw((u16)value, PCI_CONF2_ADDRESS(dev, reg));
-		break;
-	case 4:
-		outl((u32)value, PCI_CONF2_ADDRESS(dev, reg));
-		break;
-	}
-
-	outb(0, 0xCF8);    
-
-	spin_unlock_irqrestore(&pci_config_lock, flags);
-
-	return 0;
-}
-
-#undef PCI_CONF2_ADDRESS
-
-static struct pci_raw_ops pci_direct_conf2 = {
-	.read =		pci_conf2_read,
-	.write =	pci_conf2_write,
-};
-
-
-/*
- * Before we decide to use direct hardware access mechanisms, we try to do some
- * trivial checks to ensure it at least _seems_ to be working -- we just test
- * whether bus 00 contains a host bridge (this is similar to checking
- * techniques used in XFree86, but ours should be more reliable since we
- * attempt to make use of direct access hints provided by the PCI BIOS).
- *
- * This should be close to trivial, but it isn't, because there are buggy
- * chipsets (yes, you guessed it, by Intel and Compaq) that have no class ID.
- */
-static int __init pci_sanity_check(struct pci_raw_ops *o)
-{
-	u32 x = 0;
-	int devfn;
-
-	if (pci_probe & PCI_NO_CHECKS)
-		return 1;
-	/* Assume Type 1 works for newer systems.
-	   This handles machines that don't have anything on PCI Bus 0. */
-	if (dmi_get_year(DMI_BIOS_DATE) >= 2001)
-		return 1;
-
-	for (devfn = 0; devfn < 0x100; devfn++) {
-		if (o->read(0, 0, devfn, PCI_CLASS_DEVICE, 2, &x))
-			continue;
-		if (x == PCI_CLASS_BRIDGE_HOST || x == PCI_CLASS_DISPLAY_VGA)
-			return 1;
-
-		if (o->read(0, 0, devfn, PCI_VENDOR_ID, 2, &x))
-			continue;
-		if (x == PCI_VENDOR_ID_INTEL || x == PCI_VENDOR_ID_COMPAQ)
-			return 1;
-	}
-
-	DBG(KERN_WARNING "PCI: Sanity check failed\n");
-	return 0;
-}
-
-static int __init pci_check_type1(void)
-{
-	unsigned long flags;
-	unsigned int tmp;
-	int works = 0;
-
-	local_irq_save(flags);
-
-	outb(0x01, 0xCFB);
-	tmp = inl(0xCF8);
-	outl(0x80000000, 0xCF8);
-	if (inl(0xCF8) == 0x80000000 && pci_sanity_check(&pci_direct_conf1)) {
-		works = 1;
-	}
-	outl(tmp, 0xCF8);
-	local_irq_restore(flags);
-
-	return works;
-}
-
-static int __init pci_check_type2(void)
-{
-	unsigned long flags;
-	int works = 0;
-
-	local_irq_save(flags);
-
-	outb(0x00, 0xCFB);
-	outb(0x00, 0xCF8);
-	outb(0x00, 0xCFA);
-	if (inb(0xCF8) == 0x00 && inb(0xCFA) == 0x00 &&
-	    pci_sanity_check(&pci_direct_conf2)) {
-		works = 1;
-	}
-
-	local_irq_restore(flags);
-
-	return works;
-}
-
-void __init pci_direct_init(int type)
-{
-	if (type == 0)
-		return;
-	printk(KERN_INFO "PCI: Using configuration type %d\n", type);
-	if (type == 1)
-		raw_pci_ops = &pci_direct_conf1;
-	else
-		raw_pci_ops = &pci_direct_conf2;
-}
-
-int __init pci_direct_probe(void)
-{
-	struct resource *region, *region2;
-
-	if ((pci_probe & PCI_PROBE_CONF1) == 0)
-		goto type2;
-	region = request_region(0xCF8, 8, "PCI conf1");
-	if (!region)
-		goto type2;
-
-	if (pci_check_type1())
-		return 1;
-	release_resource(region);
-
- type2:
-	if ((pci_probe & PCI_PROBE_CONF2) == 0)
-		return 0;
-	region = request_region(0xCF8, 4, "PCI conf2");
-	if (!region)
-		return 0;
-	region2 = request_region(0xC000, 0x1000, "PCI conf2");
-	if (!region2)
-		goto fail2;
-
-	if (pci_check_type2()) {
-		printk(KERN_INFO "PCI: Using configuration type 2\n");
-		raw_pci_ops = &pci_direct_conf2;
-		return 2;
-	}
-
-	release_resource(region2);
- fail2:
-	release_resource(region);
-	return 0;
-}