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