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authorLinus Torvalds <torvalds@linux-foundation.org>2008-08-15 12:19:40 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-15 12:19:40 -0400
commit024b246ed24492d6c2ee14c34d742b137fce1b94 (patch)
tree428444950025503218c96b03c86f749403626dec /arch/alpha/include/asm/mmzone.h
parent9419fc1c957d600093baaea247fef23cca3b4e93 (diff)
alpha: move include/asm-alpha to arch/alpha/include/asm
Sam Ravnborg did the build-test that the direct header file move works, I'm just committing it. This is a pure move: mkdir arch/alpha/include git mv include/asm-alpha arch/alpha/include/asm with no other changes. Requested-and-tested-by: Sam Ravnborg <sam@ravnborg.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/alpha/include/asm/mmzone.h')
-rw-r--r--arch/alpha/include/asm/mmzone.h115
1 files changed, 115 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/mmzone.h b/arch/alpha/include/asm/mmzone.h
new file mode 100644
index 000000000000..8af56ce346ad
--- /dev/null
+++ b/arch/alpha/include/asm/mmzone.h
@@ -0,0 +1,115 @@
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#define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn)
60
61/*
62 * Given a kaddr, LOCAL_BASE_ADDR finds the owning node of the memory
63 * and returns the kaddr corresponding to first physical page in the
64 * node's mem_map.
65 */
66#define LOCAL_BASE_ADDR(kaddr) \
67 ((unsigned long)__va(NODE_DATA(kvaddr_to_nid(kaddr))->node_start_pfn \
68 << PAGE_SHIFT))
69
70/* XXX: FIXME -- wli */
71#define kern_addr_valid(kaddr) (0)
72
73#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
74
75#define VALID_PAGE(page) (((page) - mem_map) < max_mapnr)
76
77#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> 32))
78#define pgd_page(pgd) (pfn_to_page(pgd_val(pgd) >> 32))
79#define pte_pfn(pte) (pte_val(pte) >> 32)
80
81#define mk_pte(page, pgprot) \
82({ \
83 pte_t pte; \
84 unsigned long pfn; \
85 \
86 pfn = page_to_pfn(page) << 32; \
87 pte_val(pte) = pfn | pgprot_val(pgprot); \
88 \
89 pte; \
90})
91
92#define pte_page(x) \
93({ \
94 unsigned long kvirt; \
95 struct page * __xx; \
96 \
97 kvirt = (unsigned long)__va(pte_val(x) >> (32-PAGE_SHIFT)); \
98 __xx = virt_to_page(kvirt); \
99 \
100 __xx; \
101})
102
103#define page_to_pa(page) \
104 (page_to_pfn(page) << PAGE_SHIFT)
105
106#define pfn_to_nid(pfn) pa_to_nid(((u64)(pfn) << PAGE_SHIFT))
107#define pfn_valid(pfn) \
108 (((pfn) - node_start_pfn(pfn_to_nid(pfn))) < \
109 node_spanned_pages(pfn_to_nid(pfn))) \
110
111#define virt_addr_valid(kaddr) pfn_valid((__pa(kaddr) >> PAGE_SHIFT))
112
113#endif /* CONFIG_DISCONTIGMEM */
114
115#endif /* _ASM_MMZONE_H_ */