4 #include <linux/config.h>
5 #include <linux/types.h>
6 #include <asm/pgtable.h>
8 extern unsigned long parisc_vmerge_boundary;
9 extern unsigned long parisc_vmerge_max_size;
11 #define BIO_VMERGE_BOUNDARY parisc_vmerge_boundary
12 #define BIO_VMERGE_MAX_SIZE parisc_vmerge_max_size
14 #define virt_to_phys(a) ((unsigned long)__pa(a))
15 #define phys_to_virt(a) __va(a)
16 #define virt_to_bus virt_to_phys
17 #define bus_to_virt phys_to_virt
22 * readX()/writeX() do byteswapping and take an ioremapped address
23 * __raw_readX()/__raw_writeX() don't byteswap and take an ioremapped address.
24 * gsc_*() don't byteswap and operate on physical addresses;
25 * eg dev->hpa or 0xfee00000.
28 static inline unsigned char gsc_readb(unsigned long addr)
37 : "=&r" (flags), "=r" (ret) : "r" (addr) );
42 static inline unsigned short gsc_readw(unsigned long addr)
51 : "=&r" (flags), "=r" (ret) : "r" (addr) );
56 static inline unsigned int gsc_readl(unsigned long addr)
62 : "=r" (ret) : "r" (addr) );
67 static inline unsigned long long gsc_readq(unsigned long addr)
69 unsigned long long ret;
74 : "=r" (ret) : "r" (addr) );
76 /* two reads may have side effects.. */
77 ret = ((u64) gsc_readl(addr)) << 32;
78 ret |= gsc_readl(addr+4);
83 static inline void gsc_writeb(unsigned char val, unsigned long addr)
90 : "=&r" (flags) : "r" (val), "r" (addr) );
93 static inline void gsc_writew(unsigned short val, unsigned long addr)
100 : "=&r" (flags) : "r" (val), "r" (addr) );
103 static inline void gsc_writel(unsigned int val, unsigned long addr)
105 __asm__ __volatile__(
107 : : "r" (val), "r" (addr) );
110 static inline void gsc_writeq(unsigned long long val, unsigned long addr)
113 __asm__ __volatile__(
115 : : "r" (val), "r" (addr) );
117 /* two writes may have side effects.. */
118 gsc_writel(val >> 32, addr);
119 gsc_writel(val, addr+4);
124 * The standard PCI ioremap interfaces
127 extern void __iomem * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
129 /* Most machines react poorly to I/O-space being cacheable... Instead let's
130 * define ioremap() in terms of ioremap_nocache().
132 extern inline void __iomem * ioremap(unsigned long offset, unsigned long size)
134 return __ioremap(offset, size, _PAGE_NO_CACHE);
136 #define ioremap_nocache(off, sz) ioremap((off), (sz))
138 extern void iounmap(void __iomem *addr);
140 static inline unsigned char __raw_readb(const volatile void __iomem *addr)
142 return (*(volatile unsigned char __force *) (addr));
144 static inline unsigned short __raw_readw(const volatile void __iomem *addr)
146 return *(volatile unsigned short __force *) addr;
148 static inline unsigned int __raw_readl(const volatile void __iomem *addr)
150 return *(volatile unsigned int __force *) addr;
152 static inline unsigned long long __raw_readq(const volatile void __iomem *addr)
154 return *(volatile unsigned long long __force *) addr;
157 static inline void __raw_writeb(unsigned char b, volatile void __iomem *addr)
159 *(volatile unsigned char __force *) addr = b;
161 static inline void __raw_writew(unsigned short b, volatile void __iomem *addr)
163 *(volatile unsigned short __force *) addr = b;
165 static inline void __raw_writel(unsigned int b, volatile void __iomem *addr)
167 *(volatile unsigned int __force *) addr = b;
169 static inline void __raw_writeq(unsigned long long b, volatile void __iomem *addr)
171 *(volatile unsigned long long __force *) addr = b;
174 /* readb can never be const, so use __fswab instead of le*_to_cpu */
175 #define readb(addr) __raw_readb(addr)
176 #define readw(addr) __fswab16(__raw_readw(addr))
177 #define readl(addr) __fswab32(__raw_readl(addr))
178 #define readq(addr) __fswab64(__raw_readq(addr))
179 #define writeb(b, addr) __raw_writeb(b, addr)
180 #define writew(b, addr) __raw_writew(cpu_to_le16(b), addr)
181 #define writel(b, addr) __raw_writel(cpu_to_le32(b), addr)
182 #define writeq(b, addr) __raw_writeq(cpu_to_le64(b), addr)
184 #define readb_relaxed(addr) readb(addr)
185 #define readw_relaxed(addr) readw(addr)
186 #define readl_relaxed(addr) readl(addr)
187 #define readq_relaxed(addr) readq(addr)
189 #define mmiowb() do { } while (0)
191 void memset_io(volatile void __iomem *addr, unsigned char val, int count);
192 void memcpy_fromio(void *dst, const volatile void __iomem *src, int count);
193 void memcpy_toio(volatile void __iomem *dst, const void *src, int count);
196 * XXX - We don't have csum_partial_copy_fromio() yet, so we cheat here and
197 * just copy it. The net code will then do the checksum later. Presently
198 * only used by some shared memory 8390 Ethernet cards anyway.
201 #define eth_io_copy_and_sum(skb,src,len,unused) \
202 memcpy_fromio((skb)->data,(src),(len))
213 extern unsigned char eisa_in8(unsigned short port);
214 extern unsigned short eisa_in16(unsigned short port);
215 extern unsigned int eisa_in32(unsigned short port);
216 extern void eisa_out8(unsigned char data, unsigned short port);
217 extern void eisa_out16(unsigned short data, unsigned short port);
218 extern void eisa_out32(unsigned int data, unsigned short port);
220 #if defined(CONFIG_PCI)
221 extern unsigned char inb(int addr);
222 extern unsigned short inw(int addr);
223 extern unsigned int inl(int addr);
225 extern void outb(unsigned char b, int addr);
226 extern void outw(unsigned short b, int addr);
227 extern void outl(unsigned int b, int addr);
228 #elif defined(CONFIG_EISA)
230 #define inw eisa_in16
231 #define inl eisa_in32
232 #define outb eisa_out8
233 #define outw eisa_out16
234 #define outl eisa_out32
236 static inline char inb(unsigned long addr)
242 static inline short inw(unsigned long addr)
248 static inline int inl(unsigned long addr)
254 #define outb(x, y) BUG()
255 #define outw(x, y) BUG()
256 #define outl(x, y) BUG()
260 * String versions of in/out ops:
262 extern void insb (unsigned long port, void *dst, unsigned long count);
263 extern void insw (unsigned long port, void *dst, unsigned long count);
264 extern void insl (unsigned long port, void *dst, unsigned long count);
265 extern void outsb (unsigned long port, const void *src, unsigned long count);
266 extern void outsw (unsigned long port, const void *src, unsigned long count);
267 extern void outsl (unsigned long port, const void *src, unsigned long count);
270 /* IO Port space is : BBiiii where BB is HBA number. */
271 #define IO_SPACE_LIMIT 0x00ffffff
274 #define dma_cache_inv(_start,_size) do { flush_kernel_dcache_range(_start,_size); } while (0)
275 #define dma_cache_wback(_start,_size) do { flush_kernel_dcache_range(_start,_size); } while (0)
276 #define dma_cache_wback_inv(_start,_size) do { flush_kernel_dcache_range(_start,_size); } while (0)
278 /* PA machines have an MM I/O space from 0xf0000000-0xffffffff in 32
279 * bit mode and from 0xfffffffff0000000-0xfffffffffffffff in 64 bit
280 * mode (essentially just sign extending. This macro takes in a 32
281 * bit I/O address (still with the leading f) and outputs the correct
282 * value for either 32 or 64 bit mode */
283 #define F_EXTEND(x) ((unsigned long)((x) | (0xffffffff00000000ULL)))
285 #include <asm-generic/iomap.h>
288 * Convert a physical pointer to a virtual kernel pointer for /dev/mem
291 #define xlate_dev_mem_ptr(p) __va(p)
294 * Convert a virtual cached pointer to an uncached pointer
296 #define xlate_dev_kmem_ptr(p) p