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-rw-r--r--include/asm-sparc/mmu_64.h123
1 files changed, 0 insertions, 123 deletions
diff --git a/include/asm-sparc/mmu_64.h b/include/asm-sparc/mmu_64.h
deleted file mode 100644
index 9067dc500535..000000000000
--- a/include/asm-sparc/mmu_64.h
+++ /dev/null
@@ -1,123 +0,0 @@
1#ifndef __MMU_H
2#define __MMU_H
3
4#include <linux/const.h>
5#include <asm/page.h>
6#include <asm/hypervisor.h>
7
8#define CTX_NR_BITS 13
9
10#define TAG_CONTEXT_BITS ((_AC(1,UL) << CTX_NR_BITS) - _AC(1,UL))
11
12/* UltraSPARC-III+ and later have a feature whereby you can
13 * select what page size the various Data-TLB instances in the
14 * chip. In order to gracefully support this, we put the version
15 * field in a spot outside of the areas of the context register
16 * where this parameter is specified.
17 */
18#define CTX_VERSION_SHIFT 22
19#define CTX_VERSION_MASK ((~0UL) << CTX_VERSION_SHIFT)
20
21#define CTX_PGSZ_8KB _AC(0x0,UL)
22#define CTX_PGSZ_64KB _AC(0x1,UL)
23#define CTX_PGSZ_512KB _AC(0x2,UL)
24#define CTX_PGSZ_4MB _AC(0x3,UL)
25#define CTX_PGSZ_BITS _AC(0x7,UL)
26#define CTX_PGSZ0_NUC_SHIFT 61
27#define CTX_PGSZ1_NUC_SHIFT 58
28#define CTX_PGSZ0_SHIFT 16
29#define CTX_PGSZ1_SHIFT 19
30#define CTX_PGSZ_MASK ((CTX_PGSZ_BITS << CTX_PGSZ0_SHIFT) | \
31 (CTX_PGSZ_BITS << CTX_PGSZ1_SHIFT))
32
33#if defined(CONFIG_SPARC64_PAGE_SIZE_8KB)
34#define CTX_PGSZ_BASE CTX_PGSZ_8KB
35#elif defined(CONFIG_SPARC64_PAGE_SIZE_64KB)
36#define CTX_PGSZ_BASE CTX_PGSZ_64KB
37#else
38#error No page size specified in kernel configuration
39#endif
40
41#if defined(CONFIG_HUGETLB_PAGE_SIZE_4MB)
42#define CTX_PGSZ_HUGE CTX_PGSZ_4MB
43#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K)
44#define CTX_PGSZ_HUGE CTX_PGSZ_512KB
45#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
46#define CTX_PGSZ_HUGE CTX_PGSZ_64KB
47#endif
48
49#define CTX_PGSZ_KERN CTX_PGSZ_4MB
50
51/* Thus, when running on UltraSPARC-III+ and later, we use the following
52 * PRIMARY_CONTEXT register values for the kernel context.
53 */
54#define CTX_CHEETAH_PLUS_NUC \
55 ((CTX_PGSZ_KERN << CTX_PGSZ0_NUC_SHIFT) | \
56 (CTX_PGSZ_BASE << CTX_PGSZ1_NUC_SHIFT))
57
58#define CTX_CHEETAH_PLUS_CTX0 \
59 ((CTX_PGSZ_KERN << CTX_PGSZ0_SHIFT) | \
60 (CTX_PGSZ_BASE << CTX_PGSZ1_SHIFT))
61
62/* If you want "the TLB context number" use CTX_NR_MASK. If you
63 * want "the bits I program into the context registers" use
64 * CTX_HW_MASK.
65 */
66#define CTX_NR_MASK TAG_CONTEXT_BITS
67#define CTX_HW_MASK (CTX_NR_MASK | CTX_PGSZ_MASK)
68
69#define CTX_FIRST_VERSION ((_AC(1,UL) << CTX_VERSION_SHIFT) + _AC(1,UL))
70#define CTX_VALID(__ctx) \
71 (!(((__ctx.sparc64_ctx_val) ^ tlb_context_cache) & CTX_VERSION_MASK))
72#define CTX_HWBITS(__ctx) ((__ctx.sparc64_ctx_val) & CTX_HW_MASK)
73#define CTX_NRBITS(__ctx) ((__ctx.sparc64_ctx_val) & CTX_NR_MASK)
74
75#ifndef __ASSEMBLY__
76
77#define TSB_ENTRY_ALIGNMENT 16
78
79struct tsb {
80 unsigned long tag;
81 unsigned long pte;
82} __attribute__((aligned(TSB_ENTRY_ALIGNMENT)));
83
84extern void __tsb_insert(unsigned long ent, unsigned long tag, unsigned long pte);
85extern void tsb_flush(unsigned long ent, unsigned long tag);
86extern void tsb_init(struct tsb *tsb, unsigned long size);
87
88struct tsb_config {
89 struct tsb *tsb;
90 unsigned long tsb_rss_limit;
91 unsigned long tsb_nentries;
92 unsigned long tsb_reg_val;
93 unsigned long tsb_map_vaddr;
94 unsigned long tsb_map_pte;
95};
96
97#define MM_TSB_BASE 0
98
99#ifdef CONFIG_HUGETLB_PAGE
100#define MM_TSB_HUGE 1
101#define MM_NUM_TSBS 2
102#else
103#define MM_NUM_TSBS 1
104#endif
105
106typedef struct {
107 spinlock_t lock;
108 unsigned long sparc64_ctx_val;
109 unsigned long huge_pte_count;
110 struct tsb_config tsb_block[MM_NUM_TSBS];
111 struct hv_tsb_descr tsb_descr[MM_NUM_TSBS];
112} mm_context_t;
113
114#endif /* !__ASSEMBLY__ */
115
116#define TSB_CONFIG_TSB 0x00
117#define TSB_CONFIG_RSS_LIMIT 0x08
118#define TSB_CONFIG_NENTRIES 0x10
119#define TSB_CONFIG_REG_VAL 0x18
120#define TSB_CONFIG_MAP_VADDR 0x20
121#define TSB_CONFIG_MAP_PTE 0x28
122
123#endif /* __MMU_H */