#ifndef __ALPHA_JENSEN_H#define __ALPHA_JENSEN_H#include <asm/compiler.h>/* * Defines for the AlphaPC EISA IO and memory address space. *//* The Jensen is strange */#define AUX_IRQ (9)/* * NOTE! The memory operations do not set any memory barriers, as it's * not needed for cases like a frame buffer that is essentially memory-like. * You need to do them by hand if the operations depend on ordering. * * Similarly, the port IO operations do a "mb" only after a write operation: * if an mb is needed before (as in the case of doing memory mapped IO * first, and then a port IO operation to the same device), it needs to be * done by hand. * * After the above has bitten me 100 times, I'll give up and just do the * mb all the time, but right now I'm hoping this will work out.  Avoiding * mb's may potentially be a noticeable speed improvement, but I can't * honestly say I've tested it. * * Handling interrupts that need to do mb's to synchronize to non-interrupts * is another fun race area.  Don't do it (because if you do, I'll have to * do *everything* with interrupts disabled, ugh). *//* * EISA Interrupt Acknowledge address */#define EISA_INTA		(IDENT_ADDR + 0x100000000UL)/* * FEPROM addresses */#define EISA_FEPROM0		(IDENT_ADDR + 0x180000000UL)#define EISA_FEPROM1		(IDENT_ADDR + 0x1A0000000UL)/* * VL82C106 base address */#define EISA_VL82C106		(IDENT_ADDR + 0x1C0000000UL)/* * EISA "Host Address Extension" address (bits 25-31 of the EISA address) */#define EISA_HAE		(IDENT_ADDR + 0x1D0000000UL)/* * "SYSCTL" register address */#define EISA_SYSCTL		(IDENT_ADDR + 0x1E0000000UL)/* * "spare" register address */#define EISA_SPARE		(IDENT_ADDR + 0x1F0000000UL)/* * EISA memory address offset */#define EISA_MEM		(IDENT_ADDR + 0x200000000UL)/* * EISA IO address offset */#define EISA_IO			(IDENT_ADDR + 0x300000000UL)#ifdef __KERNEL__#ifndef __EXTERN_INLINE#define __EXTERN_INLINE extern inline#define __IO_EXTERN_INLINE#endif/* * Handle the "host address register". This needs to be set * to the high 7 bits of the EISA address.  This is also needed * for EISA IO addresses, which are only 16 bits wide (the * hae needs to be set to 0). * * HAE isn't needed for the local IO operations, though. */#define JENSEN_HAE_ADDRESS	EISA_HAE#define JENSEN_HAE_MASK		0x1ffffff__EXTERN_INLINE void jensen_set_hae(unsigned long addr){	/* hae on the Jensen is bits 31:25 shifted right */	addr >>= 25;	if (addr != alpha_mv.hae_cache)		set_hae(addr);}#define vuip	volatile unsigned int */* * IO functions * * The "local" functions are those that don't go out to the EISA bus, * but instead act on the VL82C106 chip directly.. This is mainly the * keyboard, RTC,  printer and first two serial lines.. * * The local stuff makes for some complications, but it seems to be * gone in the PCI version. I hope I can get DEC suckered^H^H^H^H^H^H^H^H * convinced that I need one of the newer machines. */static inline unsigned int jensen_local_inb(unsigned long addr){	return 0xff & *(vuip)((addr << 9) + EISA_VL82C106);}static inline void jensen_local_outb(u8 b, unsigned long addr){	*(vuip)((addr << 9) + EISA_VL82C106) = b;	mb();}static inline unsigned int jensen_bus_inb(unsigned long addr){	long result;	jensen_set_hae(0);	result = *(volatile int *)((addr << 7) + EISA_IO + 0x00);	return __kernel_extbl(result, addr & 3);}static inline void jensen_bus_outb(u8 b, unsigned long addr){	jensen_set_hae(0);	*(vuip)((addr << 7) + EISA_IO + 0x00) = b * 0x01010101;	mb();}/* * It seems gcc is not very good at optimizing away logical * operations that result in operations across inline functions. * Which is why this is a macro. */#define jensen_is_local(addr) ( \/* keyboard */	(addr == 0x60 || addr == 0x64) || \/* RTC */	(addr == 0x170 || addr == 0x171) || \/* mb COM2 */	(addr >= 0x2f8 && addr <= 0x2ff) || \/* mb LPT1 */	(addr >= 0x3bc && addr <= 0x3be) || \/* mb COM2 */	(addr >= 0x3f8 && addr <= 0x3ff))__EXTERN_INLINE u8 jensen_inb(unsigned long addr){	if (jensen_is_local(addr))		return jensen_local_inb(addr);	else		return jensen_bus_inb(addr);}__EXTERN_INLINE void jensen_outb(u8 b, unsigned long addr){	if (jensen_is_local(addr))		jensen_local_outb(b, addr);	else		jensen_bus_outb(b, addr);}__EXTERN_INLINE u16 jensen_inw(unsigned long addr){	long result;	jensen_set_hae(0);	result = *(volatile int *) ((addr << 7) + EISA_IO + 0x20);	result >>= (addr & 3) * 8;	return 0xffffUL & result;}__EXTERN_INLINE u32 jensen_inl(unsigned long addr){	jensen_set_hae(0);	return *(vuip) ((addr << 7) + EISA_IO + 0x60);}__EXTERN_INLINE void jensen_outw(u16 b, unsigned long addr){	jensen_set_hae(0);	*(vuip) ((addr << 7) + EISA_IO + 0x20) = b * 0x00010001;	mb();}__EXTERN_INLINE void jensen_outl(u32 b, unsigned long addr){	jensen_set_hae(0);	*(vuip) ((addr << 7) + EISA_IO + 0x60) = b;	mb();}/* * Memory functions. */__EXTERN_INLINE u8 jensen_readb(unsigned long addr){	long result;	jensen_set_hae(addr);	addr &= JENSEN_HAE_MASK;	result = *(volatile int *) ((addr << 7) + EISA_MEM + 0x00);	result >>= (addr & 3) * 8;	return 0xffUL & result;}__EXTERN_INLINE u16 jensen_readw(unsigned long addr){	long result;	jensen_set_hae(addr);	addr &= JENSEN_HAE_MASK;	result = *(volatile int *) ((addr << 7) + EISA_MEM + 0x20);	result >>= (addr & 3) * 8;	return 0xffffUL & result;}__EXTERN_INLINE u32 jensen_readl(unsigned long addr){	jensen_set_hae(addr);	addr &= JENSEN_HAE_MASK;	return *(vuip) ((addr << 7) + EISA_MEM + 0x60);}__EXTERN_INLINE u64 jensen_readq(unsigned long addr){	unsigned long r0, r1;	jensen_set_hae(addr);	addr &= JENSEN_HAE_MASK;	addr = (addr << 7) + EISA_MEM + 0x60;	r0 = *(vuip) (addr);	r1 = *(vuip) (addr + (4 << 7));	return r1 << 32 | r0;}__EXTERN_INLINE void jensen_writeb(u8 b, unsigned long addr){	jensen_set_hae(addr);	addr &= JENSEN_HAE_MASK;	*(vuip) ((addr << 7) + EISA_MEM + 0x00) = b * 0x01010101;}__EXTERN_INLINE void jensen_writew(u16 b, unsigned long addr){	jensen_set_hae(addr);	addr &= JENSEN_HAE_MASK;	*(vuip) ((addr << 7) + EISA_MEM + 0x20) = b * 0x00010001;}__EXTERN_INLINE void jensen_writel(u32 b, unsigned long addr){	jensen_set_hae(addr);	addr &= JENSEN_HAE_MASK;	*(vuip) ((addr << 7) + EISA_MEM + 0x60) = b;}__EXTERN_INLINE void jensen_writeq(u64 b, unsigned long addr){	jensen_set_hae(addr);	addr &= JENSEN_HAE_MASK;	addr = (addr << 7) + EISA_MEM + 0x60;	*(vuip) (addr) = b;	*(vuip) (addr + (4 << 7)) = b >> 32;}__EXTERN_INLINE unsigned long jensen_ioremap(unsigned long addr, 					     unsigned long size){	return addr;}__EXTERN_INLINE void jensen_iounmap(unsigned long addr){	return;}__EXTERN_INLINE int jensen_is_ioaddr(unsigned long addr){	return (long)addr >= 0;}#undef vuip#ifdef __WANT_IO_DEF#define __inb		jensen_inb#define __inw		jensen_inw#define __inl		jensen_inl#define __outb		jensen_outb#define __outw		jensen_outw#define __outl		jensen_outl#define __readb		jensen_readb#define __readw		jensen_readw#define __writeb	jensen_writeb#define __writew	jensen_writew#define __readl		jensen_readl#define __readq		jensen_readq#define __writel	jensen_writel#define __writeq	jensen_writeq#define __ioremap	jensen_ioremap#define __iounmap(a)	jensen_iounmap((unsigned long)a)#define __is_ioaddr	jensen_is_ioaddr/* * The above have so much overhead that it probably doesn't make * sense to have them inlined (better icache behaviour). */#define inb(port) \(__builtin_constant_p((port))?__inb(port):_inb(port))#define outb(x, port) \(__builtin_constant_p((port))?__outb((x),(port)):_outb((x),(port)))#endif /* __WANT_IO_DEF */#ifdef __IO_EXTERN_INLINE#undef __EXTERN_INLINE#undef __IO_EXTERN_INLINE#endif#endif /* __KERNEL__ */#endif /* __ALPHA_JENSEN_H */