1 /*
2 * nosun4c.c: This file is a bunch of dummies for SMP compiles,
3 * so that it does not need sun4c and avoid ifdefs.
4 *
5 * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
6 */
7
8 #include <linux/kernel.h>
9 #include <linux/mm.h>
10 #include <linux/init.h>
11 #include <asm/pgtable.h>
12
13 static char shouldnothappen[] __initdata = "32bit SMP kernel only supports sun4m and sun4d\n";
14
15 /* Dummies */
16 struct sun4c_mmu_ring {
17 unsigned long xxx1[3];
18 unsigned char xxx2[2];
19 int xxx3;
20 };
21 struct sun4c_mmu_ring sun4c_kernel_ring;
22 struct sun4c_mmu_ring sun4c_kfree_ring;
23 unsigned long sun4c_kernel_faults;
24 unsigned long *sun4c_memerr_reg;
25
should_not_happen(void)26 static void __init should_not_happen(void)
27 {
28 prom_printf(shouldnothappen);
29 prom_halt();
30 }
31
sun4c_paging_init(unsigned long start_mem,unsigned long end_mem)32 unsigned long __init sun4c_paging_init(unsigned long start_mem, unsigned long end_mem)
33 {
34 should_not_happen();
35 return 0;
36 }
37
ld_mmu_sun4c(void)38 void __init ld_mmu_sun4c(void)
39 {
40 should_not_happen();
41 }
42
sun4c_mapioaddr(unsigned long physaddr,unsigned long virt_addr,int bus_type,int rdonly)43 void sun4c_mapioaddr(unsigned long physaddr, unsigned long virt_addr, int bus_type, int rdonly)
44 {
45 }
46
sun4c_unmapioaddr(unsigned long virt_addr)47 void sun4c_unmapioaddr(unsigned long virt_addr)
48 {
49 }
50
sun4c_complete_all_stores(void)51 void sun4c_complete_all_stores(void)
52 {
53 }
54
sun4c_pte_offset(pmd_t * dir,unsigned long address)55 pte_t *sun4c_pte_offset(pmd_t * dir, unsigned long address)
56 {
57 return NULL;
58 }
59
sun4c_pte_offset_kernel(pmd_t * dir,unsigned long address)60 pte_t *sun4c_pte_offset_kernel(pmd_t *dir, unsigned long address)
61 {
62 return NULL;
63 }
64
sun4c_update_mmu_cache(struct vm_area_struct * vma,unsigned long address,pte_t * ptep)65 void sun4c_update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep)
66 {
67 }
68
sun4c_probe_vac(void)69 void __init sun4c_probe_vac(void)
70 {
71 should_not_happen();
72 }
73
sun4c_probe_memerr_reg(void)74 void __init sun4c_probe_memerr_reg(void)
75 {
76 should_not_happen();
77 }
78