xref: /linux/arch/mips/include/asm/sn/agent.h (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732)
1 /*
2  * This file is subject to the terms and conditions of the GNU General Public
3  * License.  See the file "COPYING" in the main directory of this archive
4  * for more details.
5  *
6  * This file has definitions for the hub and snac interfaces.
7  *
8  * Copyright (C) 1992 - 1997, 1999, 2000 Silcon Graphics, Inc.
9  * Copyright (C) 1999, 2000 Ralf Baechle (ralf@gnu.org)
10  */
11 #ifndef _ASM_SGI_SN_AGENT_H
12 #define _ASM_SGI_SN_AGENT_H
13 
14 #include <asm/sn/addrs.h>
15 #include <asm/sn/arch.h>
16 
17 #if defined(CONFIG_SGI_IP27)
18 #include <asm/sn/sn0/hub.h>
19 #elif defined(CONFIG_SGI_IP35)
20 #include <asm/sn/sn1/hub.h>
21 #endif	/* !CONFIG_SGI_IP27 && !CONFIG_SGI_IP35 */
22 
23 /*
24  * NIC register macros
25  */
26 
27 #if defined(CONFIG_SGI_IP27)
28 #define HUB_NIC_ADDR(_cpuid)						   \
29 	REMOTE_HUB_ADDR(COMPACT_TO_NASID_NODEID(cpu_to_node(_cpuid)),	    \
30 		MD_MLAN_CTL)
31 #endif
32 
33 #define SET_HUB_NIC(_my_cpuid, _val)					   \
34 	(HUB_S(HUB_NIC_ADDR(_my_cpuid), (_val)))
35 
36 #define SET_MY_HUB_NIC(_v)						   \
37 	SET_HUB_NIC(cpuid(), (_v))
38 
39 #define GET_HUB_NIC(_my_cpuid)						   \
40 	(HUB_L(HUB_NIC_ADDR(_my_cpuid)))
41 
42 #define GET_MY_HUB_NIC()						   \
43 	GET_HUB_NIC(cpuid())
44 
45 #endif /* _ASM_SGI_SN_AGENT_H */
46