2 * linux/arch/alpha/kernel/machvec.h
4 * Copyright (C) 1997, 1998 Richard Henderson
6 * This file has goodies to help simplify instantiation of machine vectors.
9 #include <linux/config.h>
10 #include <asm/pgalloc.h>
12 /* Whee. These systems don't have an HAE:
13 IRONGATE, MARVEL, POLARIS, TSUNAMI, TITAN, WILDFIRE
14 Fix things up for the GENERIC kernel by defining the HAE address
15 to be that of the cache. Now we can read and write it as we like. ;-) */
16 #define IRONGATE_HAE_ADDRESS (&alpha_mv.hae_cache)
17 #define MARVEL_HAE_ADDRESS (&alpha_mv.hae_cache)
18 #define POLARIS_HAE_ADDRESS (&alpha_mv.hae_cache)
19 #define TSUNAMI_HAE_ADDRESS (&alpha_mv.hae_cache)
20 #define TITAN_HAE_ADDRESS (&alpha_mv.hae_cache)
21 #define WILDFIRE_HAE_ADDRESS (&alpha_mv.hae_cache)
23 #if CIA_ONE_HAE_WINDOW
24 #define CIA_HAE_ADDRESS (&alpha_mv.hae_cache)
26 #if MCPCIA_ONE_HAE_WINDOW
27 #define MCPCIA_HAE_ADDRESS (&alpha_mv.hae_cache)
30 /* Only a few systems don't define IACK_SC, handling all interrupts through
31 the SRM console. But splitting out that one case from IO() below
32 seems like such a pain. Define this to get things to compile. */
33 #define JENSEN_IACK_SC 1
35 #define WILDFIRE_IACK_SC 1 /* FIXME */
38 * Some helpful macros for filling in the blanks.
41 #define CAT1(x,y) x##y
42 #define CAT(x,y) CAT1(x,y)
44 #define DO_DEFAULT_RTC rtc_port: 0x70
47 max_asn: EV4_MAX_ASN, \
48 mv_switch_mm: ev4_switch_mm, \
49 mv_activate_mm: ev4_activate_mm, \
50 mv_flush_tlb_current: ev4_flush_tlb_current, \
51 mv_flush_tlb_current_page: ev4_flush_tlb_current_page
54 max_asn: EV5_MAX_ASN, \
55 mv_switch_mm: ev5_switch_mm, \
56 mv_activate_mm: ev5_activate_mm, \
57 mv_flush_tlb_current: ev5_flush_tlb_current, \
58 mv_flush_tlb_current_page: ev5_flush_tlb_current_page
61 max_asn: EV6_MAX_ASN, \
62 mv_switch_mm: ev5_switch_mm, \
63 mv_activate_mm: ev5_activate_mm, \
64 mv_flush_tlb_current: ev5_flush_tlb_current, \
65 mv_flush_tlb_current_page: ev5_flush_tlb_current_page
68 max_asn: EV6_MAX_ASN, \
69 mv_switch_mm: ev5_switch_mm, \
70 mv_activate_mm: ev5_activate_mm, \
71 mv_flush_tlb_current: ev5_flush_tlb_current, \
72 mv_flush_tlb_current_page: ev5_flush_tlb_current_page
74 #define IO_LITE(UP,low) \
75 hae_register: (unsigned long *) CAT(UP,_HAE_ADDRESS), \
76 iack_sc: CAT(UP,_IACK_SC), \
77 mv_inb: CAT(low,_inb), \
78 mv_inw: CAT(low,_inw), \
79 mv_inl: CAT(low,_inl), \
80 mv_outb: CAT(low,_outb), \
81 mv_outw: CAT(low,_outw), \
82 mv_outl: CAT(low,_outl), \
83 mv_readb: CAT(low,_readb), \
84 mv_readw: CAT(low,_readw), \
85 mv_readl: CAT(low,_readl), \
86 mv_readq: CAT(low,_readq), \
87 mv_writeb: CAT(low,_writeb), \
88 mv_writew: CAT(low,_writew), \
89 mv_writel: CAT(low,_writel), \
90 mv_writeq: CAT(low,_writeq), \
91 mv_ioremap: CAT(low,_ioremap), \
92 mv_iounmap: CAT(low,_iounmap) \
96 pci_ops: &CAT(low,_pci_ops)
98 #define DO_APECS_IO IO(APECS,apecs)
99 #define DO_CIA_IO IO(CIA,cia)
100 #define DO_IRONGATE_IO IO(IRONGATE,irongate)
101 #define DO_LCA_IO IO(LCA,lca)
102 #define DO_MARVEL_IO IO(MARVEL,marvel)
103 #define DO_MCPCIA_IO IO(MCPCIA,mcpcia)
104 #define DO_POLARIS_IO IO(POLARIS,polaris)
105 #define DO_T2_IO IO(T2,t2)
106 #define DO_TSUNAMI_IO IO(TSUNAMI,tsunami)
107 #define DO_TITAN_IO IO(TITAN,titan)
108 #define DO_WILDFIRE_IO IO(WILDFIRE,wildfire)
110 #define DO_PYXIS_IO IO_LITE(CIA,cia_bwx), \
111 pci_ops: &CAT(cia,_pci_ops)
114 mv_is_ioaddr: CAT(which,_is_ioaddr), \
115 mv_pci_tbi: CAT(which,_pci_tbi)
117 #define DO_APECS_BUS BUS(apecs)
118 #define DO_CIA_BUS BUS(cia)
119 #define DO_IRONGATE_BUS BUS(irongate)
120 #define DO_LCA_BUS BUS(lca)
121 #define DO_MARVEL_BUS BUS(marvel)
122 #define DO_MCPCIA_BUS BUS(mcpcia)
123 #define DO_POLARIS_BUS BUS(polaris)
124 #define DO_T2_BUS BUS(t2)
125 #define DO_TSUNAMI_BUS BUS(tsunami)
126 #define DO_TITAN_BUS BUS(titan)
127 #define DO_WILDFIRE_BUS BUS(wildfire)
130 * In a GENERIC kernel, we have lots of these vectors floating about,
131 * all but one of which we want to go away. In a non-GENERIC kernel,
132 * we want only one, ever.
134 * Accomplish this in the GENERIC kernel by putting all of the vectors
135 * in the .init.data section where they'll go away. We'll copy the
136 * one we want to the real alpha_mv vector in setup_arch.
138 * Accomplish this in a non-GENERIC kernel by ifdef'ing out all but
139 * one of the vectors, which will not reside in .init.data. We then
140 * alias this one vector to alpha_mv, so no copy is needed.
142 * Upshot: set __initdata to nothing for non-GENERIC kernels.
145 #ifdef CONFIG_ALPHA_GENERIC
146 #define __initmv __initdata
151 /* GCC actually has a syntax for defining aliases, but is under some
152 delusion that you shouldn't be able to declare it extern somewhere
153 else beforehand. Fine. We'll do it ourselves. */
155 #define ALIAS_MV(system) \
156 struct alpha_machine_vector alpha_mv __attribute__((alias(#system "_mv")));
158 #define ALIAS_MV(system) \
159 asm(".global alpha_mv\nalpha_mv = " #system "_mv");