fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / include / asm-sparc / ide.h
bloba6d735a1310e32aa6a31a1dd453cd86fcff34a5e
1 /* $Id: ide.h,v 1.7 2002/01/16 20:58:40 davem Exp $
2 * ide.h: SPARC PCI specific IDE glue.
4 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
5 * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
6 * Adaptation from sparc64 version to sparc by Pete Zaitcev.
7 */
9 #ifndef _SPARC_IDE_H
10 #define _SPARC_IDE_H
12 #ifdef __KERNEL__
14 #include <asm/pgtable.h>
15 #include <asm/io.h>
16 #include <asm/psr.h>
18 #undef MAX_HWIFS
19 #define MAX_HWIFS 2
21 #define IDE_ARCH_OBSOLETE_INIT
22 #define ide_default_io_ctl(base) ((base) + 0x206) /* obsolete */
24 #define __ide_insl(data_reg, buffer, wcount) \
25 __ide_insw(data_reg, buffer, (wcount)<<1)
26 #define __ide_outsl(data_reg, buffer, wcount) \
27 __ide_outsw(data_reg, buffer, (wcount)<<1)
29 /* On sparc, I/O ports and MMIO registers are accessed identically. */
30 #define __ide_mm_insw __ide_insw
31 #define __ide_mm_insl __ide_insl
32 #define __ide_mm_outsw __ide_outsw
33 #define __ide_mm_outsl __ide_outsl
35 static __inline__ void __ide_insw(unsigned long port,
36 void *dst,
37 unsigned long count)
39 volatile unsigned short *data_port;
40 /* unsigned long end = (unsigned long)dst + (count << 1); */ /* P3 */
41 u16 *ps = dst;
42 u32 *pi;
44 data_port = (volatile unsigned short *)port;
46 if(((unsigned long)ps) & 0x2) {
47 *ps++ = *data_port;
48 count--;
50 pi = (u32 *)ps;
51 while(count >= 2) {
52 u32 w;
54 w = (*data_port) << 16;
55 w |= (*data_port);
56 *pi++ = w;
57 count -= 2;
59 ps = (u16 *)pi;
60 if(count)
61 *ps++ = *data_port;
63 /* __flush_dcache_range((unsigned long)dst, end); */ /* P3 see hme */
66 static __inline__ void __ide_outsw(unsigned long port,
67 const void *src,
68 unsigned long count)
70 volatile unsigned short *data_port;
71 /* unsigned long end = (unsigned long)src + (count << 1); */
72 const u16 *ps = src;
73 const u32 *pi;
75 data_port = (volatile unsigned short *)port;
77 if(((unsigned long)src) & 0x2) {
78 *data_port = *ps++;
79 count--;
81 pi = (const u32 *)ps;
82 while(count >= 2) {
83 u32 w;
85 w = *pi++;
86 *data_port = (w >> 16);
87 *data_port = w;
88 count -= 2;
90 ps = (const u16 *)pi;
91 if(count)
92 *data_port = *ps;
94 /* __flush_dcache_range((unsigned long)src, end); */ /* P3 see hme */
97 #endif /* __KERNEL__ */
99 #endif /* _SPARC_IDE_H */