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nexedi
linux
Commits
0a4a7535
Commit
0a4a7535
authored
Jun 09, 2004
by
Keith M. Wesolowski
Browse files
Options
Browse Files
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Plain Diff
Merge foobazco.org:/sources/2.5-bk
into foobazco.org:/sources/2.5-sparc-todave
parents
3c3daf31
21469996
Changes
10
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Showing
10 changed files
with
55 additions
and
94 deletions
+55
-94
arch/sparc/kernel/init_task.c
arch/sparc/kernel/init_task.c
+1
-1
arch/sparc/mm/srmmu.c
arch/sparc/mm/srmmu.c
+29
-35
arch/sparc/mm/sun4c.c
arch/sparc/mm/sun4c.c
+0
-4
include/asm-sparc/dma-mapping.h
include/asm-sparc/dma-mapping.h
+1
-0
include/asm-sparc/highmem.h
include/asm-sparc/highmem.h
+2
-2
include/asm-sparc/pgtable.h
include/asm-sparc/pgtable.h
+6
-25
include/asm-sparc/pgtsrmmu.h
include/asm-sparc/pgtsrmmu.h
+15
-20
include/asm-sparc/pgtsun4.h
include/asm-sparc/pgtsun4.h
+0
-3
include/asm-sparc/pgtsun4c.h
include/asm-sparc/pgtsun4c.h
+0
-3
include/asm-sparc/viking.h
include/asm-sparc/viking.h
+1
-1
No files found.
arch/sparc/kernel/init_task.c
View file @
0a4a7535
...
...
@@ -22,6 +22,6 @@ EXPORT_SYMBOL(init_task);
* in etrap.S which assumes it.
*/
union
thread_union
init_thread_union
__attribute__
((
section
(
".text"
)))
__attribute__
((
section
(
".text
,#alloc
"
)))
__attribute__
((
aligned
(
THREAD_SIZE
)))
=
{
INIT_THREAD_INFO
(
init_task
)
};
arch/sparc/mm/srmmu.c
View file @
0a4a7535
...
...
@@ -174,7 +174,7 @@ static inline int srmmu_pmd_present(pmd_t pmd)
static
inline
void
srmmu_pmd_clear
(
pmd_t
*
pmdp
)
{
int
i
;
for
(
i
=
0
;
i
<
SRMMU_PTRS_PER_PTE_SOFT
/
SRMMU
_PTRS_PER_PTE
;
i
++
)
for
(
i
=
0
;
i
<
PTRS_PER_PTE
/
SRMMU_REAL
_PTRS_PER_PTE
;
i
++
)
srmmu_set_pte
((
pte_t
*
)
&
pmdp
->
pmdv
[
i
],
__pte
(
0
));
}
...
...
@@ -234,9 +234,9 @@ static void srmmu_pmd_set(pmd_t *pmdp, pte_t *ptep)
int
i
;
ptp
=
__nocache_pa
((
unsigned
long
)
ptep
)
>>
4
;
for
(
i
=
0
;
i
<
SRMMU_PTRS_PER_PTE_SOFT
/
SRMMU
_PTRS_PER_PTE
;
i
++
)
{
for
(
i
=
0
;
i
<
PTRS_PER_PTE
/
SRMMU_REAL
_PTRS_PER_PTE
;
i
++
)
{
srmmu_set_pte
((
pte_t
*
)
&
pmdp
->
pmdv
[
i
],
SRMMU_ET_PTD
|
ptp
);
ptp
+=
(
SRMMU_PTRS_PER_PTE
*
sizeof
(
pte_t
)
>>
4
);
ptp
+=
(
SRMMU_
REAL_
PTRS_PER_PTE
*
sizeof
(
pte_t
)
>>
4
);
}
}
...
...
@@ -246,9 +246,9 @@ static void srmmu_pmd_populate(pmd_t *pmdp, struct page *ptep)
int
i
;
ptp
=
page_to_pfn
(
ptep
)
<<
(
PAGE_SHIFT
-
4
);
/* watch for overflow */
for
(
i
=
0
;
i
<
SRMMU_PTRS_PER_PTE_SOFT
/
SRMMU
_PTRS_PER_PTE
;
i
++
)
{
for
(
i
=
0
;
i
<
PTRS_PER_PTE
/
SRMMU_REAL
_PTRS_PER_PTE
;
i
++
)
{
srmmu_set_pte
((
pte_t
*
)
&
pmdp
->
pmdv
[
i
],
SRMMU_ET_PTD
|
ptp
);
ptp
+=
(
SRMMU_PTRS_PER_PTE
*
sizeof
(
pte_t
)
>>
4
);
ptp
+=
(
SRMMU_
REAL_
PTRS_PER_PTE
*
sizeof
(
pte_t
)
>>
4
);
}
}
...
...
@@ -263,7 +263,7 @@ extern inline pgd_t *srmmu_pgd_offset(struct mm_struct * mm, unsigned long addre
static
inline
pmd_t
*
srmmu_pmd_offset
(
pgd_t
*
dir
,
unsigned
long
address
)
{
return
(
pmd_t
*
)
srmmu_pgd_page
(
*
dir
)
+
((
address
>>
SRMMU_PMD_SHIFT_SOFT
)
&
(
SRMMU_PTRS_PER_PMD_SOFT
-
1
));
((
address
>>
PMD_SHIFT
)
&
(
PTRS_PER_PMD
-
1
));
}
/* Find an entry in the third-level page table.. */
...
...
@@ -273,7 +273,7 @@ static inline pte_t *srmmu_pte_offset(pmd_t * dir, unsigned long address)
pte
=
__nocache_va
((
dir
->
pmdv
[
0
]
&
SRMMU_PTD_PMASK
)
<<
4
);
return
(
pte_t
*
)
pte
+
((
address
>>
PAGE_SHIFT
)
&
(
SRMMU_PTRS_PER_PTE_SOFT
-
1
));
((
address
>>
PAGE_SHIFT
)
&
(
PTRS_PER_PTE
-
1
));
}
static
unsigned
long
srmmu_swp_type
(
swp_entry_t
entry
)
...
...
@@ -487,7 +487,7 @@ static void srmmu_pmd_free(pmd_t * pmd)
static
pte_t
*
srmmu_pte_alloc_one_kernel
(
struct
mm_struct
*
mm
,
unsigned
long
address
)
{
return
(
pte_t
*
)
srmmu_get_nocache
(
SRMMU_PTE_SZ_SOFT
,
SRMMU_PTE_SZ_SOFT
);
return
(
pte_t
*
)
srmmu_get_nocache
(
PTE_SIZE
,
PTE_SIZE
);
}
static
struct
page
*
...
...
@@ -502,7 +502,7 @@ srmmu_pte_alloc_one(struct mm_struct *mm, unsigned long address)
static
void
srmmu_free_pte_fast
(
pte_t
*
pte
)
{
srmmu_free_nocache
((
unsigned
long
)
pte
,
SRMMU_PTE_SZ_SOFT
);
srmmu_free_nocache
((
unsigned
long
)
pte
,
PTE_SIZE
);
}
static
void
srmmu_pte_free
(
struct
page
*
pte
)
...
...
@@ -514,7 +514,7 @@ static void srmmu_pte_free(struct page *pte)
BUG
();
p
=
page_to_pfn
(
pte
)
<<
PAGE_SHIFT
;
/* Physical address */
p
=
(
unsigned
long
)
__nocache_va
(
p
);
/* Nocached virtual */
srmmu_free_nocache
(
p
,
SRMMU_PTE_SZ_SOFT
);
srmmu_free_nocache
(
p
,
PTE_SIZE
);
}
/*
...
...
@@ -829,7 +829,7 @@ static void cypress_flush_cache_range(struct vm_area_struct *vma, unsigned long
a
=
0x20
;
b
=
0x40
;
c
=
0x60
;
d
=
0x80
;
e
=
0xa0
;
f
=
0xc0
;
g
=
0xe0
;
start
&=
SRMMU_PMD_MASK
;
start
&=
SRMMU_
REAL_
PMD_MASK
;
while
(
start
<
end
)
{
faddr
=
(
start
+
(
0x10000
-
0x100
));
goto
inside
;
...
...
@@ -849,7 +849,7 @@ static void cypress_flush_cache_range(struct vm_area_struct *vma, unsigned long
"r"
(
a
),
"r"
(
b
),
"r"
(
c
),
"r"
(
d
),
"r"
(
e
),
"r"
(
f
),
"r"
(
g
));
}
while
(
faddr
!=
start
);
start
+=
SRMMU_PMD_SIZE
;
start
+=
SRMMU_
REAL_
PMD_SIZE
;
}
srmmu_set_context
(
octx
);
local_irq_restore
(
flags
);
...
...
@@ -1067,16 +1067,15 @@ void __init srmmu_early_allocate_ptable_skeleton(unsigned long start, unsigned l
}
pmdp
=
srmmu_pmd_offset
(
__nocache_fix
(
pgdp
),
start
);
if
(
srmmu_pmd_none
(
*
(
pmd_t
*
)
__nocache_fix
(
pmdp
)))
{
ptep
=
(
pte_t
*
)
__srmmu_get_nocache
(
SRMMU_PTE_SZ_SOFT
,
SRMMU_PTE_SZ_SOFT
);
ptep
=
(
pte_t
*
)
__srmmu_get_nocache
(
PTE_SIZE
,
PTE_SIZE
);
if
(
ptep
==
NULL
)
early_pgtable_allocfail
(
"pte"
);
memset
(
__nocache_fix
(
ptep
),
0
,
SRMMU_PTE_SZ_SOFT
);
memset
(
__nocache_fix
(
ptep
),
0
,
PTE_SIZE
);
srmmu_pmd_set
(
__nocache_fix
(
pmdp
),
ptep
);
}
if
(
start
>
(
0xffffffffUL
-
SRMMU_PMD_SIZE_SOFT
))
if
(
start
>
(
0xffffffffUL
-
PMD_SIZE
))
break
;
start
=
(
start
+
SRMMU_PMD_SIZE_SOFT
)
&
SRMMU_PMD_MASK_SOFT
;
start
=
(
start
+
PMD_SIZE
)
&
PMD_MASK
;
}
}
...
...
@@ -1097,16 +1096,16 @@ void __init srmmu_allocate_ptable_skeleton(unsigned long start, unsigned long en
}
pmdp
=
srmmu_pmd_offset
(
pgdp
,
start
);
if
(
srmmu_pmd_none
(
*
pmdp
))
{
ptep
=
(
pte_t
*
)
__srmmu_get_nocache
(
SRMMU_PTE_SZ_SOFT
,
SRMMU_PTE_SZ_SOFT
);
ptep
=
(
pte_t
*
)
__srmmu_get_nocache
(
PTE_SIZE
,
PTE_SIZE
);
if
(
ptep
==
NULL
)
early_pgtable_allocfail
(
"pte"
);
memset
(
ptep
,
0
,
SRMMU_PTE_SZ_SOFT
);
memset
(
ptep
,
0
,
PTE_SIZE
);
srmmu_pmd_set
(
pmdp
,
ptep
);
}
if
(
start
>
(
0xffffffffUL
-
SRMMU_PMD_SIZE_SOFT
))
if
(
start
>
(
0xffffffffUL
-
PMD_SIZE
))
break
;
start
=
(
start
+
SRMMU_PMD_SIZE_SOFT
)
&
SRMMU_PMD_MASK_SOFT
;
start
=
(
start
+
PMD_SIZE
)
&
PMD_MASK
;
}
}
...
...
@@ -1136,8 +1135,8 @@ void __init srmmu_inherit_prom_mappings(unsigned long start,unsigned long end)
/* A red snapper, see what it really is. */
what
=
0
;
if
(
!
(
start
&
~
(
SRMMU_PMD_MASK
)))
{
if
(
srmmu_hwprobe
((
start
-
PAGE_SIZE
)
+
SRMMU_PMD_SIZE
)
==
prompte
)
if
(
!
(
start
&
~
(
SRMMU_
REAL_
PMD_MASK
)))
{
if
(
srmmu_hwprobe
((
start
-
PAGE_SIZE
)
+
SRMMU_
REAL_
PMD_SIZE
)
==
prompte
)
what
=
1
;
}
...
...
@@ -1162,11 +1161,11 @@ void __init srmmu_inherit_prom_mappings(unsigned long start,unsigned long end)
}
pmdp
=
srmmu_pmd_offset
(
__nocache_fix
(
pgdp
),
start
);
if
(
srmmu_pmd_none
(
*
(
pmd_t
*
)
__nocache_fix
(
pmdp
)))
{
ptep
=
(
pte_t
*
)
__srmmu_get_nocache
(
SRMMU_PTE_SZ_SOFT
,
SRMMU_PTE_SZ_SOFT
);
ptep
=
(
pte_t
*
)
__srmmu_get_nocache
(
PTE_SIZE
,
PTE_SIZE
);
if
(
ptep
==
NULL
)
early_pgtable_allocfail
(
"pte"
);
memset
(
__nocache_fix
(
ptep
),
0
,
SRMMU_PTE_SZ_SOFT
);
memset
(
__nocache_fix
(
ptep
),
0
,
PTE_SIZE
);
srmmu_pmd_set
(
__nocache_fix
(
pmdp
),
ptep
);
}
if
(
what
==
1
)
{
...
...
@@ -1176,9 +1175,9 @@ void __init srmmu_inherit_prom_mappings(unsigned long start,unsigned long end)
* good hardware PTE piece. Alternatives seem worse.
*/
unsigned
int
x
;
/* Index of HW PMD in soft cluster */
x
=
(
start
>>
SRMMU_
PMD_SHIFT
)
&
15
;
x
=
(
start
>>
PMD_SHIFT
)
&
15
;
*
(
unsigned
long
*
)
__nocache_fix
(
&
pmdp
->
pmdv
[
x
])
=
prompte
;
start
+=
SRMMU_PMD_SIZE
;
start
+=
SRMMU_
REAL_
PMD_SIZE
;
continue
;
}
ptep
=
srmmu_pte_offset
(
__nocache_fix
(
pmdp
),
start
);
...
...
@@ -2139,16 +2138,11 @@ void __init ld_mmu_srmmu(void)
extern
void
ld_mmu_iounit
(
void
);
extern
void
___xchg32_sun4md
(
void
);
BTFIXUPSET_SIMM13
(
pmd_shift
,
SRMMU_PMD_SHIFT_SOFT
);
BTFIXUPSET_SETHI
(
pmd_size
,
SRMMU_PMD_SIZE_SOFT
);
BTFIXUPSET_SETHI
(
pmd_mask
,
SRMMU_PMD_MASK_SOFT
);
BTFIXUPSET_SIMM13
(
pgdir_shift
,
SRMMU_PGDIR_SHIFT
);
BTFIXUPSET_SETHI
(
pgdir_size
,
SRMMU_PGDIR_SIZE
);
BTFIXUPSET_SETHI
(
pgdir_mask
,
SRMMU_PGDIR_MASK
);
BTFIXUPSET_SIMM13
(
ptrs_per_pte
,
SRMMU_PTRS_PER_PTE_SOFT
);
BTFIXUPSET_SIMM13
(
ptrs_per_pmd
,
SRMMU_PTRS_PER_PMD_SOFT
);
BTFIXUPSET_SIMM13
(
ptrs_per_pmd
,
SRMMU_PTRS_PER_PMD
);
BTFIXUPSET_SIMM13
(
ptrs_per_pgd
,
SRMMU_PTRS_PER_PGD
);
BTFIXUPSET_INT
(
page_none
,
pgprot_val
(
SRMMU_PAGE_NONE
));
...
...
arch/sparc/mm/sun4c.c
View file @
0a4a7535
...
...
@@ -2137,14 +2137,10 @@ void __init ld_mmu_sun4c(void)
printk
(
"Loading sun4c MMU routines
\n
"
);
/* First the constants */
BTFIXUPSET_SIMM13
(
pmd_shift
,
SUN4C_PMD_SHIFT
);
BTFIXUPSET_SETHI
(
pmd_size
,
SUN4C_PMD_SIZE
);
BTFIXUPSET_SETHI
(
pmd_mask
,
SUN4C_PMD_MASK
);
BTFIXUPSET_SIMM13
(
pgdir_shift
,
SUN4C_PGDIR_SHIFT
);
BTFIXUPSET_SETHI
(
pgdir_size
,
SUN4C_PGDIR_SIZE
);
BTFIXUPSET_SETHI
(
pgdir_mask
,
SUN4C_PGDIR_MASK
);
BTFIXUPSET_SIMM13
(
ptrs_per_pte
,
SUN4C_PTRS_PER_PTE
);
BTFIXUPSET_SIMM13
(
ptrs_per_pmd
,
SUN4C_PTRS_PER_PMD
);
BTFIXUPSET_SIMM13
(
ptrs_per_pgd
,
SUN4C_PTRS_PER_PGD
);
BTFIXUPSET_SIMM13
(
user_ptrs_per_pgd
,
KERNBASE
/
SUN4C_PGDIR_SIZE
);
...
...
include/asm-sparc/dma-mapping.h
View file @
0a4a7535
...
...
@@ -2,6 +2,7 @@
#define _ASM_SPARC_DMA_MAPPING_H
#include <linux/config.h>
#include <linux/device.h>
#ifdef CONFIG_PCI
#include <asm-generic/dma-mapping.h>
...
...
include/asm-sparc/highmem.h
View file @
0a4a7535
...
...
@@ -24,7 +24,7 @@
#include <asm/fixmap.h>
#include <asm/vaddrs.h>
#include <asm/kmap_types.h>
#include <asm/pgt
srmmu
.h>
#include <asm/pgt
able
.h>
/* declarations for highmem.c */
extern
unsigned
long
highstart_pfn
,
highend_pfn
;
...
...
@@ -43,7 +43,7 @@ extern void kmap_init(void) __init;
*/
#define LAST_PKMAP 1024
#define PKMAP_SIZE (LAST_PKMAP << PAGE_SHIFT)
#define PKMAP_BASE
SRMMU_PMD_ALIGN_SOFT
(SRMMU_NOCACHE_VADDR + (SRMMU_MAX_NOCACHE_PAGES << PAGE_SHIFT))
#define PKMAP_BASE
PMD_ALIGN
(SRMMU_NOCACHE_VADDR + (SRMMU_MAX_NOCACHE_PAGES << PAGE_SHIFT))
#define LAST_PKMAP_MASK (LAST_PKMAP - 1)
#define PKMAP_NR(virt) ((virt - PKMAP_BASE) >> PAGE_SHIFT)
...
...
include/asm-sparc/pgtable.h
View file @
0a4a7535
...
...
@@ -75,29 +75,10 @@ BTFIXUPDEF_CALL(void, mmu_unmap_dma_area, unsigned long busa, int len)
#define mmu_unmap_dma_area(ba,len) BTFIXUP_CALL(mmu_unmap_dma_area)(ba,len)
#define mmu_translate_dvma(ba) BTFIXUP_CALL(mmu_translate_dvma)(ba)
/*
*/
BTFIXUPDEF_SIMM13
(
pmd_shift
)
BTFIXUPDEF_SETHI
(
pmd_size
)
BTFIXUPDEF_SETHI
(
pmd_mask
)
extern
unsigned
int
pmd_align
(
unsigned
int
addr
)
__attribute_const__
;
extern
__inline__
unsigned
int
pmd_align
(
unsigned
int
addr
)
{
return
((
addr
+
~
BTFIXUP_SETHI
(
pmd_mask
))
&
BTFIXUP_SETHI
(
pmd_mask
));
}
BTFIXUPDEF_SIMM13
(
pgdir_shift
)
BTFIXUPDEF_SETHI
(
pgdir_size
)
BTFIXUPDEF_SETHI
(
pgdir_mask
)
extern
unsigned
int
pgdir_align
(
unsigned
int
addr
)
__attribute_const__
;
extern
__inline__
unsigned
int
pgdir_align
(
unsigned
int
addr
)
{
return
((
addr
+
~
BTFIXUP_SETHI
(
pgdir_mask
))
&
BTFIXUP_SETHI
(
pgdir_mask
));
}
BTFIXUPDEF_SIMM13
(
ptrs_per_pte
)
BTFIXUPDEF_SIMM13
(
ptrs_per_pmd
)
BTFIXUPDEF_SIMM13
(
ptrs_per_pgd
)
BTFIXUPDEF_SIMM13
(
user_ptrs_per_pgd
)
...
...
@@ -112,19 +93,19 @@ BTFIXUPDEF_INT(page_copy)
BTFIXUPDEF_INT
(
page_readonly
)
BTFIXUPDEF_INT
(
page_kernel
)
#define PMD_SHIFT
BTFIXUP_SIMM13(pmd_shift)
#define PMD_SIZE
BTFIXUP_SETHI(pmd_size
)
#define PMD_MASK
BTFIXUP_SETHI(pmd_mask
)
#define PMD_ALIGN(
addr) pmd_align(addr
)
#define PMD_SHIFT
SUN4C_PMD_SHIFT
#define PMD_SIZE
(1UL << PMD_SHIFT
)
#define PMD_MASK
(~(PMD_SIZE-1)
)
#define PMD_ALIGN(
__addr) (((__addr) + ~PMD_MASK) & PMD_MASK
)
#define PGDIR_SHIFT BTFIXUP_SIMM13(pgdir_shift)
#define PGDIR_SIZE BTFIXUP_SETHI(pgdir_size)
#define PGDIR_MASK BTFIXUP_SETHI(pgdir_mask)
#define PGDIR_ALIGN pgdir_align(addr)
#define PTRS_PER_PTE BTFIXUP_SIMM13(ptrs_per_pte)
#define PTRS_PER_PTE 1024
#define PTRS_PER_PMD BTFIXUP_SIMM13(ptrs_per_pmd)
#define PTRS_PER_PGD BTFIXUP_SIMM13(ptrs_per_pgd)
#define USER_PTRS_PER_PGD BTFIXUP_SIMM13(user_ptrs_per_pgd)
#define FIRST_USER_PGD_NR 0
#define PTE_SIZE (PTRS_PER_PTE*4)
#define PAGE_NONE __pgprot(BTFIXUP_INT(page_none))
#define PAGE_SHARED __pgprot(BTFIXUP_INT(page_shared))
...
...
include/asm-sparc/pgtsrmmu.h
View file @
0a4a7535
...
...
@@ -17,10 +17,10 @@
#define SRMMU_MAX_CONTEXTS 65536
/* PMD_SHIFT determines the size of the area a second-level page table entry can map */
#define SRMMU_
PMD_SHIFT
18
#define SRMMU_
PMD_SIZE (1UL << SRMMU
_PMD_SHIFT)
#define SRMMU_
PMD_MASK (~(SRMMU
_PMD_SIZE-1))
/* #define SRMMU_PMD_ALIGN(addr) (((addr)+SRMMU_PMD_SIZE-1)&SRMMU_PMD_MASK) */
#define SRMMU_
REAL_PMD_SHIFT
18
#define SRMMU_
REAL_PMD_SIZE (1UL << SRMMU_REAL
_PMD_SHIFT)
#define SRMMU_
REAL_PMD_MASK (~(SRMMU_REAL
_PMD_SIZE-1))
#define SRMMU_REAL_PMD_ALIGN(__addr) (((__addr)+SRMMU_REAL_PMD_SIZE-1)&SRMMU_REAL_PMD_MASK)
/* PGDIR_SHIFT determines what a third-level page table entry can map */
#define SRMMU_PGDIR_SHIFT 24
...
...
@@ -28,13 +28,13 @@
#define SRMMU_PGDIR_MASK (~(SRMMU_PGDIR_SIZE-1))
#define SRMMU_PGDIR_ALIGN(addr) (((addr)+SRMMU_PGDIR_SIZE-1)&SRMMU_PGDIR_MASK)
#define SRMMU_
PTRS_PER_PTE
64
#define SRMMU_
PTRS_PER_PMD
64
#define SRMMU_PTRS_PER_PGD
256
#define SRMMU_
REAL_PTRS_PER_PTE
64
#define SRMMU_
REAL_PTRS_PER_PMD
64
#define SRMMU_PTRS_PER_PGD
256
#define SRMMU_
PTE_TABLE_SIZE 0x100
/* 64 entries, 4 bytes a piece */
#define SRMMU_PMD_TABLE_SIZE
0x100
/* 64 entries, 4 bytes a piece */
#define SRMMU_PGD_TABLE_SIZE
0x400
/* 256 entries, 4 bytes a piece */
#define SRMMU_
REAL_PTE_TABLE_SIZE (SRMMU_REAL_PTRS_PER_PTE*4)
#define SRMMU_PMD_TABLE_SIZE
(SRMMU_REAL_PTRS_PER_PMD*4)
#define SRMMU_PGD_TABLE_SIZE
(SRMMU_PTRS_PER_PGD*4)
/*
* To support pagetables in highmem, Linux introduces APIs which
...
...
@@ -44,16 +44,11 @@
* software tables.
*
* PMD_SHIFT determines the size of the area a second-level page table entry
* can map, and our pmd_t is 16 times larger than normal.
* can map, and our pmd_t is 16 times larger than normal. The values which
* were once defined here are now generic for 4c and srmmu, so they're
* found in pgtable.h.
*/
#define SRMMU_PTRS_PER_PTE_SOFT (PAGE_SIZE/4)
/* 16 hard tables per 4K page */
#define SRMMU_PTRS_PER_PMD_SOFT 4
/* Each pmd_t contains 16 hard PTPs */
#define SRMMU_PTE_SZ_SOFT PAGE_SIZE
/* same as above, in bytes */
#define SRMMU_PMD_SHIFT_SOFT 22
#define SRMMU_PMD_SIZE_SOFT (1UL << SRMMU_PMD_SHIFT_SOFT)
#define SRMMU_PMD_MASK_SOFT (~(SRMMU_PMD_SIZE_SOFT-1))
#define SRMMU_PMD_ALIGN_SOFT(addr) (((addr)+SRMMU_PMD_SIZE_SOFT-1)&SRMMU_PMD_MASK_SOFT)
#define SRMMU_PTRS_PER_PMD 4
/* Definition of the values in the ET field of PTD's and PTE's */
#define SRMMU_ET_MASK 0x3
...
...
@@ -255,7 +250,7 @@ extern __inline__ void srmmu_flush_tlb_region(unsigned long addr)
extern
__inline__
void
srmmu_flush_tlb_segment
(
unsigned
long
addr
)
{
addr
&=
SRMMU_PMD_MASK
;
addr
&=
SRMMU_
REAL_
PMD_MASK
;
__asm__
__volatile__
(
"sta %%g0, [%0] %1
\n\t
"
:
:
"r"
(
addr
|
0x100
),
/* Flush TLB segment.. */
"i"
(
ASI_M_FLUSH_PROBE
)
:
"memory"
);
...
...
include/asm-sparc/pgtsun4.h
View file @
0a4a7535
...
...
@@ -11,9 +11,6 @@
/* PMD_SHIFT determines the size of the area a second-level page table can map */
#define SUN4C_PMD_SHIFT 23
#define SUN4C_PMD_SIZE (1UL << SUN4C_PMD_SHIFT)
#define SUN4C_PMD_MASK (~(SUN4C_PMD_SIZE-1))
#define SUN4C_PMD_ALIGN(addr) (((addr)+SUN4C_PMD_SIZE-1)&SUN4C_PMD_MASK)
/* PGDIR_SHIFT determines what a third-level page table entry can map */
#define SUN4C_PGDIR_SHIFT 23
...
...
include/asm-sparc/pgtsun4c.h
View file @
0a4a7535
...
...
@@ -10,9 +10,6 @@
/* PMD_SHIFT determines the size of the area a second-level page table can map */
#define SUN4C_PMD_SHIFT 22
#define SUN4C_PMD_SIZE (1UL << SUN4C_PMD_SHIFT)
#define SUN4C_PMD_MASK (~(SUN4C_PMD_SIZE-1))
#define SUN4C_PMD_ALIGN(addr) (((addr)+SUN4C_PMD_SIZE-1)&SUN4C_PMD_MASK)
/* PGDIR_SHIFT determines what a third-level page table entry can map */
#define SUN4C_PGDIR_SHIFT 22
...
...
include/asm-sparc/viking.h
View file @
0a4a7535
...
...
@@ -236,7 +236,7 @@ static inline unsigned long viking_hwprobe(unsigned long vaddr)
:
"=r"
(
val
)
:
"r"
(
vaddr
|
0x100
),
"i"
(
ASI_M_FLUSH_PROBE
));
if
((
val
&
SRMMU_ET_MASK
)
==
SRMMU_ET_PTE
)
{
vaddr
&=
~
SRMMU_PMD_MASK
;
vaddr
&=
~
SRMMU_
REAL_
PMD_MASK
;
vaddr
>>=
PAGE_SHIFT
;
return
val
|
(
vaddr
<<
8
);
}
...
...
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