[linux-block.git] / include / asm-powerpc / eeh.h

/*
 * eeh.h
 * Copyright (C) 2001  Dave Engebretsen & Todd Inglett IBM Corporation.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

#ifndef _PPC64_EEH_H
#define _PPC64_EEH_H

#include <linux/config.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/string.h>

struct pci_dev;
struct device_node;

#ifdef CONFIG_EEH

extern int eeh_subsystem_enabled;

/* Values for eeh_mode bits in device_node */
#define EEH_MODE_SUPPORTED	(1<<0)
#define EEH_MODE_NOCHECK	(1<<1)
#define EEH_MODE_ISOLATED	(1<<2)

/* Max number of EEH freezes allowed before we consider the device
 * to be permanently disabled. */
#define EEH_MAX_ALLOWED_FREEZES 5

void __init eeh_init(void);
unsigned long eeh_check_failure(const volatile void __iomem *token,
				unsigned long val);
int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev);
void __init pci_addr_cache_build(void);

/**
 * eeh_add_device_early
 * eeh_add_device_late
 *
 * Perform eeh initialization for devices added after boot.
 * Call eeh_add_device_early before doing any i/o to the
 * device (including config space i/o).  Call eeh_add_device_late
 * to finish the eeh setup for this device.
 */
void eeh_add_device_early(struct device_node *);
void eeh_add_device_late(struct pci_dev *);

/**
 * eeh_remove_device - undo EEH setup for the indicated pci device
 * @dev: pci device to be removed
 *
 * This routine should be called when a device is removed from
 * a running system (e.g. by hotplug or dlpar).  It unregisters
 * the PCI device from the EEH subsystem.  I/O errors affecting
 * this device will no longer be detected after this call; thus,
 * i/o errors affecting this slot may leave this device unusable.
 */
void eeh_remove_device(struct pci_dev *);

/**
 * EEH_POSSIBLE_ERROR() -- test for possible MMIO failure.
 *
 * If this macro yields TRUE, the caller relays to eeh_check_failure()
 * which does further tests out of line.
 */
#define EEH_POSSIBLE_ERROR(val, type)	((val) == (type)~0 && eeh_subsystem_enabled)

/*
 * Reads from a device which has been isolated by EEH will return
 * all 1s.  This macro gives an all-1s value of the given size (in
 * bytes: 1, 2, or 4) for comparing with the result of a read.
 */
#define EEH_IO_ERROR_VALUE(size)	(~0U >> ((4 - (size)) * 8))

#else /* !CONFIG_EEH */
static inline void eeh_init(void) { }

static inline unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned long val)
{
	return val;
}

static inline int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
{
	return 0;
}

static inline void pci_addr_cache_build(void) { }

static inline void eeh_add_device_early(struct device_node *dn) { }

static inline void eeh_add_device_late(struct pci_dev *dev) { }

static inline void eeh_remove_device(struct pci_dev *dev) { }

#define EEH_POSSIBLE_ERROR(val, type) (0)
#define EEH_IO_ERROR_VALUE(size) (-1UL)
#endif /* CONFIG_EEH */

/*
 * MMIO read/write operations with EEH support.
 */
static inline u8 eeh_readb(const volatile void __iomem *addr)
{
	u8 val = in_8(addr);
	if (EEH_POSSIBLE_ERROR(val, u8))
		return eeh_check_failure(addr, val);
	return val;
}
static inline void eeh_writeb(u8 val, volatile void __iomem *addr)
{
	out_8(addr, val);
}

static inline u16 eeh_readw(const volatile void __iomem *addr)
{
	u16 val = in_le16(addr);
	if (EEH_POSSIBLE_ERROR(val, u16))
		return eeh_check_failure(addr, val);
	return val;
}
static inline void eeh_writew(u16 val, volatile void __iomem *addr)
{
	out_le16(addr, val);
}
static inline u16 eeh_raw_readw(const volatile void __iomem *addr)
{
	u16 val = in_be16(addr);
	if (EEH_POSSIBLE_ERROR(val, u16))
		return eeh_check_failure(addr, val);
	return val;
}
static inline void eeh_raw_writew(u16 val, volatile void __iomem *addr) {
	volatile u16 __iomem *vaddr = (volatile u16 __iomem *) addr;
	out_be16(vaddr, val);
}

static inline u32 eeh_readl(const volatile void __iomem *addr)
{
	u32 val = in_le32(addr);
	if (EEH_POSSIBLE_ERROR(val, u32))
		return eeh_check_failure(addr, val);
	return val;
}
static inline void eeh_writel(u32 val, volatile void __iomem *addr)
{
	out_le32(addr, val);
}
static inline u32 eeh_raw_readl(const volatile void __iomem *addr)
{
	u32 val = in_be32(addr);
	if (EEH_POSSIBLE_ERROR(val, u32))
		return eeh_check_failure(addr, val);
	return val;
}
static inline void eeh_raw_writel(u32 val, volatile void __iomem *addr)
{
	out_be32(addr, val);
}

static inline u64 eeh_readq(const volatile void __iomem *addr)
{
	u64 val = in_le64(addr);
	if (EEH_POSSIBLE_ERROR(val, u64))
		return eeh_check_failure(addr, val);
	return val;
}
static inline void eeh_writeq(u64 val, volatile void __iomem *addr)
{
	out_le64(addr, val);
}
static inline u64 eeh_raw_readq(const volatile void __iomem *addr)
{
	u64 val = in_be64(addr);
	if (EEH_POSSIBLE_ERROR(val, u64))
		return eeh_check_failure(addr, val);
	return val;
}
static inline void eeh_raw_writeq(u64 val, volatile void __iomem *addr)
{
	out_be64(addr, val);
}

#define EEH_CHECK_ALIGN(v,a) \
	((((unsigned long)(v)) & ((a) - 1)) == 0)

static inline void eeh_memset_io(volatile void __iomem *addr, int c,
				 unsigned long n)
{
	void *p = (void __force *)addr;
	u32 lc = c;
	lc |= lc << 8;
	lc |= lc << 16;

	while(n && !EEH_CHECK_ALIGN(p, 4)) {
		*((volatile u8 *)p) = c;
		p++;
		n--;
	}
	while(n >= 4) {
		*((volatile u32 *)p) = lc;
		p += 4;
		n -= 4;
	}
	while(n) {
		*((volatile u8 *)p) = c;
		p++;
		n--;
	}
	__asm__ __volatile__ ("sync" : : : "memory");
}
static inline void eeh_memcpy_fromio(void *dest, const volatile void __iomem *src,
				     unsigned long n)
{
	void *vsrc = (void __force *) src;
	void *destsave = dest;
	unsigned long nsave = n;

	while(n && (!EEH_CHECK_ALIGN(vsrc, 4) || !EEH_CHECK_ALIGN(dest, 4))) {
		*((u8 *)dest) = *((volatile u8 *)vsrc);
		__asm__ __volatile__ ("eieio" : : : "memory");
		vsrc++;
		dest++;
		n--;
	}
	while(n > 4) {
		*((u32 *)dest) = *((volatile u32 *)vsrc);
		__asm__ __volatile__ ("eieio" : : : "memory");
		vsrc += 4;
		dest += 4;
		n -= 4;
	}
	while(n) {
		*((u8 *)dest) = *((volatile u8 *)vsrc);
		__asm__ __volatile__ ("eieio" : : : "memory");
		vsrc++;
		dest++;
		n--;
	}
	__asm__ __volatile__ ("sync" : : : "memory");

	/* Look for ffff's here at dest[n].  Assume that at least 4 bytes
	 * were copied. Check all four bytes.
	 */
	if ((nsave >= 4) &&
		(EEH_POSSIBLE_ERROR((*((u32 *) destsave+nsave-4)), u32))) {
		eeh_check_failure(src, (*((u32 *) destsave+nsave-4)));
	}
}

static inline void eeh_memcpy_toio(volatile void __iomem *dest, const void *src,
				   unsigned long n)
{
	void *vdest = (void __force *) dest;

	while(n && (!EEH_CHECK_ALIGN(vdest, 4) || !EEH_CHECK_ALIGN(src, 4))) {
		*((volatile u8 *)vdest) = *((u8 *)src);
		src++;
		vdest++;
		n--;
	}
	while(n > 4) {
		*((volatile u32 *)vdest) = *((volatile u32 *)src);
		src += 4;
		vdest += 4;
		n-=4;
	}
	while(n) {
		*((volatile u8 *)vdest) = *((u8 *)src);
		src++;
		vdest++;
		n--;
	}
	__asm__ __volatile__ ("sync" : : : "memory");
}

#undef EEH_CHECK_ALIGN

static inline u8 eeh_inb(unsigned long port)
{
	u8 val;
	if (!_IO_IS_VALID(port))
		return ~0;
	val = in_8((u8 __iomem *)(port+pci_io_base));
	if (EEH_POSSIBLE_ERROR(val, u8))
		return eeh_check_failure((void __iomem *)(port), val);
	return val;
}

static inline void eeh_outb(u8 val, unsigned long port)
{
	if (_IO_IS_VALID(port))
		out_8((u8 __iomem *)(port+pci_io_base), val);
}

static inline u16 eeh_inw(unsigned long port)
{
	u16 val;
	if (!_IO_IS_VALID(port))
		return ~0;
	val = in_le16((u16 __iomem *)(port+pci_io_base));
	if (EEH_POSSIBLE_ERROR(val, u16))
		return eeh_check_failure((void __iomem *)(port), val);
	return val;
}

static inline void eeh_outw(u16 val, unsigned long port)
{
	if (_IO_IS_VALID(port))
		out_le16((u16 __iomem *)(port+pci_io_base), val);
}

static inline u32 eeh_inl(unsigned long port)
{
	u32 val;
	if (!_IO_IS_VALID(port))
		return ~0;
	val = in_le32((u32 __iomem *)(port+pci_io_base));
	if (EEH_POSSIBLE_ERROR(val, u32))
		return eeh_check_failure((void __iomem *)(port), val);
	return val;
}

static inline void eeh_outl(u32 val, unsigned long port)
{
	if (_IO_IS_VALID(port))
		out_le32((u32 __iomem *)(port+pci_io_base), val);
}

/* in-string eeh macros */
static inline void eeh_insb(unsigned long port, void * buf, int ns)
{
	_insb((u8 __iomem *)(port+pci_io_base), buf, ns);
	if (EEH_POSSIBLE_ERROR((*(((u8*)buf)+ns-1)), u8))
		eeh_check_failure((void __iomem *)(port), *(u8*)buf);
}

static inline void eeh_insw_ns(unsigned long port, void * buf, int ns)
{
	_insw_ns((u16 __iomem *)(port+pci_io_base), buf, ns);
	if (EEH_POSSIBLE_ERROR((*(((u16*)buf)+ns-1)), u16))
		eeh_check_failure((void __iomem *)(port), *(u16*)buf);
}

static inline void eeh_insl_ns(unsigned long port, void * buf, int nl)
{
	_insl_ns((u32 __iomem *)(port+pci_io_base), buf, nl);
	if (EEH_POSSIBLE_ERROR((*(((u32*)buf)+nl-1)), u32))
		eeh_check_failure((void __iomem *)(port), *(u32*)buf);
}

#endif /* _PPC64_EEH_H */
Commit	Line	Data
172ca926	1	/*
1da177e4 LT	2	* eeh.h
	3	* Copyright (C) 2001 Dave Engebretsen & Todd Inglett IBM Corporation.
	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License as published by
	7	* the Free Software Foundation; either version 2 of the License, or
	8	* (at your option) any later version.
172ca926	9	*
1da177e4 LT	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
172ca926	14	*
1da177e4 LT	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	18	*/
	19
	20	#ifndef _PPC64_EEH_H
	21	#define _PPC64_EEH_H
	22
	23	#include <linux/config.h>
	24	#include <linux/init.h>
	25	#include <linux/list.h>
	26	#include <linux/string.h>
	27
	28	struct pci_dev;
	29	struct device_node;
1da177e4 LT	30
	31	#ifdef CONFIG_EEH
	32
1e28a7dd DW	33	extern int eeh_subsystem_enabled;
1e28a7dd DW	34
1da177e4 LT	35	/* Values for eeh_mode bits in device_node */
	36	#define EEH_MODE_SUPPORTED (1<<0)
	37	#define EEH_MODE_NOCHECK (1<<1)
	38	#define EEH_MODE_ISOLATED (1<<2)
	39
172ca926 LV	40	/* Max number of EEH freezes allowed before we consider the device
	41	* to be permanently disabled. */
	42	#define EEH_MAX_ALLOWED_FREEZES 5
	43
1da177e4 LT	44	void __init eeh_init(void);
	45	unsigned long eeh_check_failure(const volatile void __iomem *token,
	46	unsigned long val);
	47	int eeh_dn_check_failure(struct device_node dn, struct pci_dev dev);
	48	void __init pci_addr_cache_build(void);
	49
	50	/**
	51	* eeh_add_device_early
	52	* eeh_add_device_late
	53	*
	54	* Perform eeh initialization for devices added after boot.
	55	* Call eeh_add_device_early before doing any i/o to the
	56	* device (including config space i/o). Call eeh_add_device_late
	57	* to finish the eeh setup for this device.
	58	*/
	59	void eeh_add_device_early(struct device_node *);
	60	void eeh_add_device_late(struct pci_dev *);
	61
	62	/**
	63	* eeh_remove_device - undo EEH setup for the indicated pci device
	64	* @dev: pci device to be removed
	65	*
172ca926 LV	66	* This routine should be called when a device is removed from
	67	* a running system (e.g. by hotplug or dlpar). It unregisters
	68	* the PCI device from the EEH subsystem. I/O errors affecting
	69	* this device will no longer be detected after this call; thus,
	70	* i/o errors affecting this slot may leave this device unusable.
1da177e4 LT	71	*/
	72	void eeh_remove_device(struct pci_dev *);
	73
1da177e4 LT	74	/**
	75	* EEH_POSSIBLE_ERROR() -- test for possible MMIO failure.
	76	*
	77	* If this macro yields TRUE, the caller relays to eeh_check_failure()
	78	* which does further tests out of line.
	79	*/
1e28a7dd	80	#define EEH_POSSIBLE_ERROR(val, type) ((val) == (type)~0 && eeh_subsystem_enabled)
1da177e4 LT	81
	82	/*
	83	* Reads from a device which has been isolated by EEH will return
	84	* all 1s. This macro gives an all-1s value of the given size (in
	85	* bytes: 1, 2, or 4) for comparing with the result of a read.
	86	*/
	87	#define EEH_IO_ERROR_VALUE(size) (~0U >> ((4 - (size)) * 8))
	88
	89	#else /* !CONFIG_EEH */
	90	static inline void eeh_init(void) { }
	91
	92	static inline unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned long val)
	93	{
	94	return val;
	95	}
	96
	97	static inline int eeh_dn_check_failure(struct device_node dn, struct pci_dev dev)
	98	{
	99	return 0;
	100	}
	101
	102	static inline void pci_addr_cache_build(void) { }
	103
	104	static inline void eeh_add_device_early(struct device_node *dn) { }
	105
	106	static inline void eeh_add_device_late(struct pci_dev *dev) { }
	107
	108	static inline void eeh_remove_device(struct pci_dev *dev) { }
	109
	110	#define EEH_POSSIBLE_ERROR(val, type) (0)
	111	#define EEH_IO_ERROR_VALUE(size) (-1UL)
	112	#endif /* CONFIG_EEH */
	113
172ca926	114	/*
1da177e4 LT	115	* MMIO read/write operations with EEH support.
	116	*/
	117	static inline u8 eeh_readb(const volatile void __iomem *addr)
	118	{
	119	u8 val = in_8(addr);
	120	if (EEH_POSSIBLE_ERROR(val, u8))
	121	return eeh_check_failure(addr, val);
	122	return val;
	123	}
	124	static inline void eeh_writeb(u8 val, volatile void __iomem *addr)
	125	{
	126	out_8(addr, val);
	127	}
	128
	129	static inline u16 eeh_readw(const volatile void __iomem *addr)
	130	{
	131	u16 val = in_le16(addr);
	132	if (EEH_POSSIBLE_ERROR(val, u16))
	133	return eeh_check_failure(addr, val);
	134	return val;
	135	}
	136	static inline void eeh_writew(u16 val, volatile void __iomem *addr)
	137	{
	138	out_le16(addr, val);
	139	}
	140	static inline u16 eeh_raw_readw(const volatile void __iomem *addr)
	141	{
	142	u16 val = in_be16(addr);
	143	if (EEH_POSSIBLE_ERROR(val, u16))
	144	return eeh_check_failure(addr, val);
	145	return val;
	146	}
	147	static inline void eeh_raw_writew(u16 val, volatile void __iomem *addr) {
	148	volatile u16 __iomem vaddr = (volatile u16 __iomem ) addr;
	149	out_be16(vaddr, val);
	150	}
	151
	152	static inline u32 eeh_readl(const volatile void __iomem *addr)
	153	{
	154	u32 val = in_le32(addr);
	155	if (EEH_POSSIBLE_ERROR(val, u32))
	156	return eeh_check_failure(addr, val);
	157	return val;
	158	}
	159	static inline void eeh_writel(u32 val, volatile void __iomem *addr)
	160	{
	161	out_le32(addr, val);
	162	}
	163	static inline u32 eeh_raw_readl(const volatile void __iomem *addr)
	164	{
	165	u32 val = in_be32(addr);
	166	if (EEH_POSSIBLE_ERROR(val, u32))
	167	return eeh_check_failure(addr, val);
	168	return val;
	169	}
	170	static inline void eeh_raw_writel(u32 val, volatile void __iomem *addr)
	171	{
	172	out_be32(addr, val);
	173	}
	174
	175	static inline u64 eeh_readq(const volatile void __iomem *addr)
	176	{
	177	u64 val = in_le64(addr);
	178	if (EEH_POSSIBLE_ERROR(val, u64))
179	return eeh_check_failure(addr, val);
180	return val;
181	}
182	static inline void eeh_writeq(u64 val, volatile void __iomem *addr)
183	{
184	out_le64(addr, val);
185	}
186	static inline u64 eeh_raw_readq(const volatile void __iomem *addr)
187	{
188	u64 val = in_be64(addr);
189	if (EEH_POSSIBLE_ERROR(val, u64))
190	return eeh_check_failure(addr, val);
191	return val;
192	}
193	static inline void eeh_raw_writeq(u64 val, volatile void __iomem *addr)
194	{
195	out_be64(addr, val);
196	}
197
198	#define EEH_CHECK_ALIGN(v,a) \
199	((((unsigned long)(v)) & ((a) - 1)) == 0)
200
201	static inline void eeh_memset_io(volatile void __iomem *addr, int c,
202	unsigned long n)
203	{
6c9afc65	204	void p = (void __force )addr;
1da177e4 LT	205	u32 lc = c;
	206	lc \|= lc << 8;
	207	lc \|= lc << 16;
	208
6c9afc65 Z	209	while(n && !EEH_CHECK_ALIGN(p, 4)) {
	210	((volatile u8 )p) = c;
	211	p++;
1da177e4 LT	212	n--;
	213	}
	214	while(n >= 4) {
6c9afc65 Z	215	((volatile u32 )p) = lc;
6c9afc65 Z	216	p += 4;
1da177e4 LT	217	n -= 4;
	218	}
	219	while(n) {
6c9afc65 Z	220	((volatile u8 )p) = c;
6c9afc65 Z	221	p++;
1da177e4 LT	222	n--;
	223	}
	224	__asm__ __volatile__ ("sync" : : : "memory");
	225	}
	226	static inline void eeh_memcpy_fromio(void dest, const volatile void __iomem src,
	227	unsigned long n)
	228	{
	229	void vsrc = (void __force ) src;
	230	void *destsave = dest;
	231	unsigned long nsave = n;
	232
	233	while(n && (!EEH_CHECK_ALIGN(vsrc, 4) \|\| !EEH_CHECK_ALIGN(dest, 4))) {
	234	((u8 )dest) = ((volatile u8 )vsrc);
	235	__asm__ __volatile__ ("eieio" : : : "memory");
6c9afc65 Z	236	vsrc++;
6c9afc65 Z	237	dest++;
1da177e4 LT	238	n--;
	239	}
	240	while(n > 4) {
	241	((u32 )dest) = ((volatile u32 )vsrc);
	242	__asm__ __volatile__ ("eieio" : : : "memory");
6c9afc65 Z	243	vsrc += 4;
6c9afc65 Z	244	dest += 4;
1da177e4 LT	245	n -= 4;
	246	}
	247	while(n) {
	248	((u8 )dest) = ((volatile u8 )vsrc);
	249	__asm__ __volatile__ ("eieio" : : : "memory");
6c9afc65 Z	250	vsrc++;
6c9afc65 Z	251	dest++;
1da177e4 LT	252	n--;
	253	}
	254	__asm__ __volatile__ ("sync" : : : "memory");
	255
	256	/* Look for ffff's here at dest[n]. Assume that at least 4 bytes
	257	* were copied. Check all four bytes.
	258	*/
	259	if ((nsave >= 4) &&
	260	(EEH_POSSIBLE_ERROR((((u32 ) destsave+nsave-4)), u32))) {
	261	eeh_check_failure(src, (((u32 ) destsave+nsave-4)));
	262	}
	263	}
	264
	265	static inline void eeh_memcpy_toio(volatile void __iomem dest, const void src,
	266	unsigned long n)
	267	{
	268	void vdest = (void __force ) dest;
	269
	270	while(n && (!EEH_CHECK_ALIGN(vdest, 4) \|\| !EEH_CHECK_ALIGN(src, 4))) {
	271	((volatile u8 )vdest) = ((u8 )src);
6c9afc65 Z	272	src++;
6c9afc65 Z	273	vdest++;
1da177e4 LT	274	n--;
	275	}
	276	while(n > 4) {
	277	((volatile u32 )vdest) = ((volatile u32 )src);
6c9afc65 Z	278	src += 4;
6c9afc65 Z	279	vdest += 4;
1da177e4 LT	280	n-=4;
	281	}
	282	while(n) {
	283	((volatile u8 )vdest) = ((u8 )src);
6c9afc65 Z	284	src++;
6c9afc65 Z	285	vdest++;
1da177e4 LT	286	n--;
	287	}
	288	__asm__ __volatile__ ("sync" : : : "memory");
	289	}
	290
	291	#undef EEH_CHECK_ALIGN
	292
	293	static inline u8 eeh_inb(unsigned long port)
	294	{
	295	u8 val;
	296	if (!_IO_IS_VALID(port))
	297	return ~0;
	298	val = in_8((u8 __iomem *)(port+pci_io_base));
	299	if (EEH_POSSIBLE_ERROR(val, u8))
	300	return eeh_check_failure((void __iomem *)(port), val);
	301	return val;
	302	}
	303
	304	static inline void eeh_outb(u8 val, unsigned long port)
	305	{
	306	if (_IO_IS_VALID(port))
	307	out_8((u8 __iomem *)(port+pci_io_base), val);
	308	}
	309
	310	static inline u16 eeh_inw(unsigned long port)
	311	{
	312	u16 val;
	313	if (!_IO_IS_VALID(port))
	314	return ~0;
	315	val = in_le16((u16 __iomem *)(port+pci_io_base));
	316	if (EEH_POSSIBLE_ERROR(val, u16))
	317	return eeh_check_failure((void __iomem *)(port), val);
	318	return val;
	319	}
	320
	321	static inline void eeh_outw(u16 val, unsigned long port)
	322	{
	323	if (_IO_IS_VALID(port))
	324	out_le16((u16 __iomem *)(port+pci_io_base), val);
	325	}
	326
	327	static inline u32 eeh_inl(unsigned long port)
	328	{
	329	u32 val;
	330	if (!_IO_IS_VALID(port))
	331	return ~0;
	332	val = in_le32((u32 __iomem *)(port+pci_io_base));
	333	if (EEH_POSSIBLE_ERROR(val, u32))
	334	return eeh_check_failure((void __iomem *)(port), val);
	335	return val;
	336	}
	337
	338	static inline void eeh_outl(u32 val, unsigned long port)
	339	{
	340	if (_IO_IS_VALID(port))
	341	out_le32((u32 __iomem *)(port+pci_io_base), val);
	342	}
	343
	344	/* in-string eeh macros */
	345	static inline void eeh_insb(unsigned long port, void * buf, int ns)
	346	{
	347	_insb((u8 __iomem *)(port+pci_io_base), buf, ns);
	348	if (EEH_POSSIBLE_ERROR(((((u8)buf)+ns-1)), u8))
	349	eeh_check_failure((void __iomem )(port), (u8*)buf);
350	}
351
352	static inline void eeh_insw_ns(unsigned long port, void * buf, int ns)
353	{
354	_insw_ns((u16 __iomem *)(port+pci_io_base), buf, ns);
355	if (EEH_POSSIBLE_ERROR(((((u16)buf)+ns-1)), u16))
356	eeh_check_failure((void __iomem )(port), (u16*)buf);
357	}
358
359	static inline void eeh_insl_ns(unsigned long port, void * buf, int nl)
360	{
361	_insl_ns((u32 __iomem *)(port+pci_io_base), buf, nl);
362	if (EEH_POSSIBLE_ERROR(((((u32)buf)+nl-1)), u32))
363	eeh_check_failure((void __iomem )(port), (u32*)buf);
364	}
365
366	#endif /* _PPC64_EEH_H */