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1/*
2 * Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99
3 * Adapted for the alpha wildfire architecture Jan 2001.
4 */
5#ifndef _ASM_MMZONE_H_
6#define _ASM_MMZONE_H_
7
8#include <asm/smp.h>
9
10struct bootmem_data_t; /* stupid forward decl. */
11
12/*
13 * Following are macros that are specific to this numa platform.
14 */
15
16extern pg_data_t node_data[];
17
18#define alpha_pa_to_nid(pa) \
19 (alpha_mv.pa_to_nid \
20 ? alpha_mv.pa_to_nid(pa) \
21 : (0))
22#define node_mem_start(nid) \
23 (alpha_mv.node_mem_start \
24 ? alpha_mv.node_mem_start(nid) \
25 : (0UL))
26#define node_mem_size(nid) \
27 (alpha_mv.node_mem_size \
28 ? alpha_mv.node_mem_size(nid) \
29 : ((nid) ? (0UL) : (~0UL)))
30
31#define pa_to_nid(pa) alpha_pa_to_nid(pa)
32#define NODE_DATA(nid) (&node_data[(nid)])
33
34#define node_localnr(pfn, nid) ((pfn) - NODE_DATA(nid)->node_start_pfn)
35
36#if 1
37#define PLAT_NODE_DATA_LOCALNR(p, n) \
38 (((p) >> PAGE_SHIFT) - PLAT_NODE_DATA(n)->gendata.node_start_pfn)
39#else
40static inline unsigned long
41PLAT_NODE_DATA_LOCALNR(unsigned long p, int n)
42{
43 unsigned long temp;
44 temp = p >> PAGE_SHIFT;
45 return temp - PLAT_NODE_DATA(n)->gendata.node_start_pfn;
46}
47#endif
48
49#ifdef CONFIG_DISCONTIGMEM
50
51/*
52 * Following are macros that each numa implementation must define.
53 */
54
55/*
56 * Given a kernel address, find the home node of the underlying memory.
57 */
58#define kvaddr_to_nid(kaddr) pa_to_nid(__pa(kaddr))
59
60/*
61 * Given a kaddr, LOCAL_BASE_ADDR finds the owning node of the memory
62 * and returns the kaddr corresponding to first physical page in the
63 * node's mem_map.
64 */
65#define LOCAL_BASE_ADDR(kaddr) \
66 ((unsigned long)__va(NODE_DATA(kvaddr_to_nid(kaddr))->node_start_pfn \
67 << PAGE_SHIFT))
68
69/* XXX: FIXME -- wli */
70#define kern_addr_valid(kaddr) (0)
71
72#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
73
74#define VALID_PAGE(page) (((page) - mem_map) < max_mapnr)
75
76#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> 32))
77#define pgd_page(pgd) (pfn_to_page(pgd_val(pgd) >> 32))
78#define pte_pfn(pte) (pte_val(pte) >> 32)
79
80#define mk_pte(page, pgprot) \
81({ \
82 pte_t pte; \
83 unsigned long pfn; \
84 \
85 pfn = page_to_pfn(page) << 32; \
86 pte_val(pte) = pfn | pgprot_val(pgprot); \
87 \
88 pte; \
89})
90
91#define pte_page(x) \
92({ \
93 unsigned long kvirt; \
94 struct page * __xx; \
95 \
96 kvirt = (unsigned long)__va(pte_val(x) >> (32-PAGE_SHIFT)); \
97 __xx = virt_to_page(kvirt); \
98 \
99 __xx; \
100})
101
102#define page_to_pa(page) \
103 (page_to_pfn(page) << PAGE_SHIFT)
104
105#define pfn_to_nid(pfn) pa_to_nid(((u64)(pfn) << PAGE_SHIFT))
106#define pfn_valid(pfn) \
107 (((pfn) - node_start_pfn(pfn_to_nid(pfn))) < \
108 node_spanned_pages(pfn_to_nid(pfn))) \
109
110#define virt_addr_valid(kaddr) pfn_valid((__pa(kaddr) >> PAGE_SHIFT))
111
112#endif /* CONFIG_DISCONTIGMEM */
113
114#endif /* _ASM_MMZONE_H_ */
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99
4 * Adapted for the alpha wildfire architecture Jan 2001.
5 */
6#ifndef _ASM_MMZONE_H_
7#define _ASM_MMZONE_H_
8
9#include <asm/smp.h>
10
11/*
12 * Following are macros that are specific to this numa platform.
13 */
14
15extern pg_data_t node_data[];
16
17#define alpha_pa_to_nid(pa) \
18 (alpha_mv.pa_to_nid \
19 ? alpha_mv.pa_to_nid(pa) \
20 : (0))
21#define node_mem_start(nid) \
22 (alpha_mv.node_mem_start \
23 ? alpha_mv.node_mem_start(nid) \
24 : (0UL))
25#define node_mem_size(nid) \
26 (alpha_mv.node_mem_size \
27 ? alpha_mv.node_mem_size(nid) \
28 : ((nid) ? (0UL) : (~0UL)))
29
30#define pa_to_nid(pa) alpha_pa_to_nid(pa)
31#define NODE_DATA(nid) (&node_data[(nid)])
32
33#define node_localnr(pfn, nid) ((pfn) - NODE_DATA(nid)->node_start_pfn)
34
35#if 1
36#define PLAT_NODE_DATA_LOCALNR(p, n) \
37 (((p) >> PAGE_SHIFT) - PLAT_NODE_DATA(n)->gendata.node_start_pfn)
38#else
39static inline unsigned long
40PLAT_NODE_DATA_LOCALNR(unsigned long p, int n)
41{
42 unsigned long temp;
43 temp = p >> PAGE_SHIFT;
44 return temp - PLAT_NODE_DATA(n)->gendata.node_start_pfn;
45}
46#endif
47
48#ifdef CONFIG_DISCONTIGMEM
49
50/*
51 * Following are macros that each numa implementation must define.
52 */
53
54/*
55 * Given a kernel address, find the home node of the underlying memory.
56 */
57#define kvaddr_to_nid(kaddr) pa_to_nid(__pa(kaddr))
58
59/*
60 * Given a kaddr, LOCAL_BASE_ADDR finds the owning node of the memory
61 * and returns the kaddr corresponding to first physical page in the
62 * node's mem_map.
63 */
64#define LOCAL_BASE_ADDR(kaddr) \
65 ((unsigned long)__va(NODE_DATA(kvaddr_to_nid(kaddr))->node_start_pfn \
66 << PAGE_SHIFT))
67
68/* XXX: FIXME -- nyc */
69#define kern_addr_valid(kaddr) (0)
70
71#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
72
73#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> 32))
74#define pte_pfn(pte) (pte_val(pte) >> 32)
75
76#define mk_pte(page, pgprot) \
77({ \
78 pte_t pte; \
79 unsigned long pfn; \
80 \
81 pfn = page_to_pfn(page) << 32; \
82 pte_val(pte) = pfn | pgprot_val(pgprot); \
83 \
84 pte; \
85})
86
87#define pte_page(x) \
88({ \
89 unsigned long kvirt; \
90 struct page * __xx; \
91 \
92 kvirt = (unsigned long)__va(pte_val(x) >> (32-PAGE_SHIFT)); \
93 __xx = virt_to_page(kvirt); \
94 \
95 __xx; \
96})
97
98#define page_to_pa(page) \
99 (page_to_pfn(page) << PAGE_SHIFT)
100
101#define pfn_to_nid(pfn) pa_to_nid(((u64)(pfn) << PAGE_SHIFT))
102#define pfn_valid(pfn) \
103 (((pfn) - node_start_pfn(pfn_to_nid(pfn))) < \
104 node_spanned_pages(pfn_to_nid(pfn))) \
105
106#define virt_addr_valid(kaddr) pfn_valid((__pa(kaddr) >> PAGE_SHIFT))
107
108#endif /* CONFIG_DISCONTIGMEM */
109
110#endif /* _ASM_MMZONE_H_ */