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1 #ifndef _SPARC64_UPA_H
2 #define _SPARC64_UPA_H
3 
4 #include <asm/asi.h>
5 
6 /* UPA level registers and defines. */
7 
8 /* UPA Config Register */
9 #define UPA_CONFIG_RESV		0xffffffffc0000000 /* Reserved.                    */
10 #define UPA_CONFIG_PCON		0x000000003fc00000 /* Depth of various sys queues. */
11 #define UPA_CONFIG_MID		0x00000000003e0000 /* Module ID.                   */
12 #define UPA_CONFIG_PCAP		0x000000000001ffff /* Port Capabilities.           */
13 
14 /* UPA Port ID Register */
15 #define UPA_PORTID_FNP		0xff00000000000000 /* Hardcoded to 0xfc on ultra.  */
16 #define UPA_PORTID_RESV		0x00fffff800000000 /* Reserved.                    */
17 #define UPA_PORTID_ECCVALID     0x0000000400000000 /* Zero if mod can generate ECC */
18 #define UPA_PORTID_ONEREAD      0x0000000200000000 /* Set if mod generates P_RASB  */
19 #define UPA_PORTID_PINTRDQ      0x0000000180000000 /* # outstanding P_INT_REQ's    */
20 #define UPA_PORTID_PREQDQ       0x000000007e000000 /* slave-wr's to mod supported  */
21 #define UPA_PORTID_PREQRD       0x0000000001e00000 /* # incoming P_REQ's supported */
22 #define UPA_PORTID_UPACAP       0x00000000001f0000 /* UPA capabilities of mod      */
23 #define UPA_PORTID_ID           0x000000000000ffff /* Module Identification bits  */
24 
25 /* UPA I/O space accessors */
26 #if defined(__KERNEL__) && !defined(__ASSEMBLY__)
_upa_readb(unsigned long addr)27 static inline unsigned char _upa_readb(unsigned long addr)
28 {
29 	unsigned char ret;
30 
31 	__asm__ __volatile__("lduba\t[%1] %2, %0\t/* upa_readb */"
32 			     : "=r" (ret)
33 			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
34 
35 	return ret;
36 }
37 
_upa_readw(unsigned long addr)38 static inline unsigned short _upa_readw(unsigned long addr)
39 {
40 	unsigned short ret;
41 
42 	__asm__ __volatile__("lduha\t[%1] %2, %0\t/* upa_readw */"
43 			     : "=r" (ret)
44 			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
45 
46 	return ret;
47 }
48 
_upa_readl(unsigned long addr)49 static inline unsigned int _upa_readl(unsigned long addr)
50 {
51 	unsigned int ret;
52 
53 	__asm__ __volatile__("lduwa\t[%1] %2, %0\t/* upa_readl */"
54 			     : "=r" (ret)
55 			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
56 
57 	return ret;
58 }
59 
_upa_readq(unsigned long addr)60 static inline unsigned long _upa_readq(unsigned long addr)
61 {
62 	unsigned long ret;
63 
64 	__asm__ __volatile__("ldxa\t[%1] %2, %0\t/* upa_readq */"
65 			     : "=r" (ret)
66 			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
67 
68 	return ret;
69 }
70 
_upa_writeb(unsigned char b,unsigned long addr)71 static inline void _upa_writeb(unsigned char b, unsigned long addr)
72 {
73 	__asm__ __volatile__("stba\t%0, [%1] %2\t/* upa_writeb */"
74 			     : /* no outputs */
75 			     : "r" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
76 }
77 
_upa_writew(unsigned short w,unsigned long addr)78 static inline void _upa_writew(unsigned short w, unsigned long addr)
79 {
80 	__asm__ __volatile__("stha\t%0, [%1] %2\t/* upa_writew */"
81 			     : /* no outputs */
82 			     : "r" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
83 }
84 
_upa_writel(unsigned int l,unsigned long addr)85 static inline void _upa_writel(unsigned int l, unsigned long addr)
86 {
87 	__asm__ __volatile__("stwa\t%0, [%1] %2\t/* upa_writel */"
88 			     : /* no outputs */
89 			     : "r" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
90 }
91 
_upa_writeq(unsigned long q,unsigned long addr)92 static inline void _upa_writeq(unsigned long q, unsigned long addr)
93 {
94 	__asm__ __volatile__("stxa\t%0, [%1] %2\t/* upa_writeq */"
95 			     : /* no outputs */
96 			     : "r" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
97 }
98 
99 #define upa_readb(__addr)		(_upa_readb((unsigned long)(__addr)))
100 #define upa_readw(__addr)		(_upa_readw((unsigned long)(__addr)))
101 #define upa_readl(__addr)		(_upa_readl((unsigned long)(__addr)))
102 #define upa_readq(__addr)		(_upa_readq((unsigned long)(__addr)))
103 #define upa_writeb(__b, __addr)		(_upa_writeb((__b), (unsigned long)(__addr)))
104 #define upa_writew(__w, __addr)		(_upa_writew((__w), (unsigned long)(__addr)))
105 #define upa_writel(__l, __addr)		(_upa_writel((__l), (unsigned long)(__addr)))
106 #define upa_writeq(__q, __addr)		(_upa_writeq((__q), (unsigned long)(__addr)))
107 #endif /* __KERNEL__ && !__ASSEMBLY__ */
108 
109 #endif /* !(_SPARC64_UPA_H) */
110