patch-2.3.35 linux/include/asm-sparc64/upa.h

• Lines: 101
• Date: Mon Dec 20 22:05:52 1999
• Orig file: v2.3.34/linux/include/asm-sparc64/upa.h
• Orig date: Mon Apr 14 16:28:24 1997

diff -u --recursive --new-file v2.3.34/linux/include/asm-sparc64/upa.h linux/include/asm-sparc64/upa.h
@@ -1,7 +1,9 @@
-/* $Id: upa.h,v 1.2 1997/04/04 00:50:30 davem Exp $ */
+/* $Id: upa.h,v 1.3 1999/09/21 14:39:47 davem Exp $ */
 #ifndef _SPARC64_UPA_H
 #define _SPARC64_UPA_H
 
+#include <asm/asi.h>
+
 /* UPA level registers and defines. */
 
 /* UPA Config Register */
@@ -20,5 +22,89 @@
 #define UPA_PORTID_PREQRD       0x0000000001e00000 /* # incoming P_REQ's supported */
 #define UPA_PORTID_UPACAP       0x00000000001f0000 /* UPA capabilities of mod      */
 #define UPA_PORTID_ID           0x000000000000ffff /* Module Indentification bits  */
+
+/* UPA I/O space accessors */
+#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
+extern __inline__ unsigned char _upa_readb(unsigned long addr)
+{
+	unsigned char ret;
+
+	__asm__ __volatile__("lduba\t[%1] %2, %0\t/* upa_readb */"
+			     : "=r" (ret)
+			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+
+	return ret;
+}
+
+extern __inline__ unsigned short _upa_readw(unsigned long addr)
+{
+	unsigned short ret;
+
+	__asm__ __volatile__("lduha\t[%1] %2, %0\t/* upa_readw */"
+			     : "=r" (ret)
+			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+
+	return ret;
+}
+
+extern __inline__ unsigned int _upa_readl(unsigned long addr)
+{
+	unsigned int ret;
+
+	__asm__ __volatile__("lduwa\t[%1] %2, %0\t/* upa_readl */"
+			     : "=r" (ret)
+			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+
+	return ret;
+}
+
+extern __inline__ unsigned long _upa_readq(unsigned long addr)
+{
+	unsigned long ret;
+
+	__asm__ __volatile__("ldxa\t[%1] %2, %0\t/* upa_readq */"
+			     : "=r" (ret)
+			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+
+	return ret;
+}
+
+extern __inline__ void _upa_writeb(unsigned char b, unsigned long addr)
+{
+	__asm__ __volatile__("stba\t%0, [%1] %2\t/* upa_writeb */"
+			     : /* no outputs */
+			     : "r" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+}
+
+extern __inline__ void _upa_writew(unsigned short w, unsigned long addr)
+{
+	__asm__ __volatile__("stha\t%0, [%1] %2\t/* upa_writew */"
+			     : /* no outputs */
+			     : "r" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+}
+
+extern __inline__ void _upa_writel(unsigned int l, unsigned long addr)
+{
+	__asm__ __volatile__("stwa\t%0, [%1] %2\t/* upa_writel */"
+			     : /* no outputs */
+			     : "r" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+}
+
+extern __inline__ void _upa_writeq(unsigned long q, unsigned long addr)
+{
+	__asm__ __volatile__("stxa\t%0, [%1] %2\t/* upa_writeq */"
+			     : /* no outputs */
+			     : "r" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+}
+
+#define upa_readb(__addr)		(_upa_readb((unsigned long)(__addr)))
+#define upa_readw(__addr)		(_upa_readw((unsigned long)(__addr)))
+#define upa_readl(__addr)		(_upa_readl((unsigned long)(__addr)))
+#define upa_readq(__addr)		(_upa_readq((unsigned long)(__addr)))
+#define upa_writeb(__b, __addr)		(_upa_writeb((__b), (unsigned long)(__addr)))
+#define upa_writew(__w, __addr)		(_upa_writew((__w), (unsigned long)(__addr)))
+#define upa_writel(__l, __addr)		(_upa_writel((__l), (unsigned long)(__addr)))
+#define upa_writeq(__q, __addr)		(_upa_writeq((__q), (unsigned long)(__addr)))
+#endif /* __KERNEL__ && !__ASSEMBLY__ */
 
 #endif /* !(_SPARC64_UPA_H) */