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nexedi
linux
Commits
8b0a9c34
Commit
8b0a9c34
authored
Mar 24, 2003
by
Ivan Kokshaysky
Committed by
Richard Henderson
Mar 24, 2003
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[PATCH] alpha: nautilus_init_pci() cleanup
parent
8d09b87b
Changes
1
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Showing
1 changed file
with
17 additions
and
23 deletions
+17
-23
arch/alpha/kernel/sys_nautilus.c
arch/alpha/kernel/sys_nautilus.c
+17
-23
No files found.
arch/alpha/kernel/sys_nautilus.c
View file @
8b0a9c34
...
...
@@ -183,14 +183,17 @@ nautilus_machine_check(unsigned long vector, unsigned long la_ptr,
extern
void
free_reserved_mem
(
void
*
,
void
*
);
static
struct
resource
irongate_mem
=
{
.
name
=
"Irongate PCI MEM"
,
.
flags
=
IORESOURCE_MEM
,
};
void
__init
nautilus_init_pci
(
void
)
{
struct
pci_controller
*
hose
=
hose_head
;
struct
pci_bus
*
bus
;
struct
pci_dev
*
irongate
;
unsigned
long
saved_io_start
,
saved_io_end
;
unsigned
long
saved_mem_start
,
saved_mem_end
;
unsigned
long
bus_align
,
bus_size
,
pci_mem
;
unsigned
long
memtop
=
max_low_pfn
<<
PAGE_SHIFT
;
...
...
@@ -199,50 +202,41 @@ nautilus_init_pci(void)
hose
->
bus
=
bus
;
hose
->
last_busno
=
bus
->
subordinate
;
/* We're going to size the root bus, so we must
- have a non-NULL PCI device associated with the bus
- preserve hose resources. */
irongate
=
pci_find_slot
(
0
,
0
);
bus
->
self
=
irongate
;
saved_io_start
=
bus
->
resource
[
0
]
->
start
;
saved_io_end
=
bus
->
resource
[
0
]
->
end
;
saved_mem_start
=
bus
->
resource
[
1
]
->
start
;
saved_mem_end
=
bus
->
resource
[
1
]
->
end
;
bus
->
resource
[
1
]
=
&
irongate_mem
;
pci_bus_size_bridges
(
bus
);
/*
Don't care about IO
. */
bus
->
resource
[
0
]
->
start
=
saved_io_start
;
bus
->
resource
[
0
]
->
end
=
saved_io_end
;
/*
IO port range
. */
bus
->
resource
[
0
]
->
start
=
0
;
bus
->
resource
[
0
]
->
end
=
0xffff
;
/* Set up PCI memory range - limit is hardwired to 0xffffffff,
base must be at aligned to 16Mb. */
bus_align
=
bus
->
resource
[
1
]
->
start
;
bus_size
=
bus
->
resource
[
1
]
->
end
+
1
-
bus_align
;
/* Align to 16Mb. */
if
(
bus_align
<
0x1000000UL
)
bus_align
=
0x1000000UL
;
/* Restore hose MEM resource. */
bus
->
resource
[
1
]
->
start
=
saved_mem_start
;
bus
->
resource
[
1
]
->
end
=
saved_mem_end
;
pci_mem
=
(
0x100000000UL
-
bus_size
)
&
-
bus_align
;
bus
->
resource
[
1
]
->
start
=
pci_mem
;
bus
->
resource
[
1
]
->
end
=
0xffffffffUL
;
if
(
request_resource
(
&
iomem_resource
,
bus
->
resource
[
1
])
<
0
)
printk
(
KERN_ERR
"Failed to request MEM on hose 0
\n
"
);
if
(
pci_mem
<
memtop
&&
pci_mem
>
alpha_mv
.
min_mem_address
)
{
free_reserved_mem
(
__va
(
alpha_mv
.
min_mem_address
),
__va
(
pci_mem
));
printk
(
"nautilus_init_
arch
: %ldk freed
\n
"
,
printk
(
"nautilus_init_
pci
: %ldk freed
\n
"
,
(
pci_mem
-
alpha_mv
.
min_mem_address
)
>>
10
);
}
alpha_mv
.
min_mem_address
=
pci_mem
;
if
((
IRONGATE0
->
dev_vendor
>>
16
)
>
0x7006
)
/* Albacore? */
IRONGATE0
->
pci_mem
=
pci_mem
;
pci_bus_assign_resources
(
bus
);
/* To break the loop in common_swizzle() */
bus
->
self
=
NULL
;
pci_fixup_irqs
(
alpha_mv
.
pci_swizzle
,
alpha_mv
.
pci_map_irq
);
}
...
...
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