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nexedi
linux
Commits
2404c561
Commit
2404c561
authored
Dec 07, 2002
by
David S. Miller
Browse files
Options
Browse Files
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Plain Diff
Merge davem@nuts.ninka.net:/home/davem/src/BK/sparc-2.5
into kernel.bkbits.net:/home/davem/sparc-2.5
parents
a7d3162c
51a169c1
Changes
12
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Showing
12 changed files
with
113 additions
and
70 deletions
+113
-70
arch/alpha/kernel/core_cia.c
arch/alpha/kernel/core_cia.c
+19
-24
arch/alpha/kernel/pci.c
arch/alpha/kernel/pci.c
+42
-14
arch/alpha/kernel/signal.c
arch/alpha/kernel/signal.c
+20
-7
arch/alpha/kernel/systbls.S
arch/alpha/kernel/systbls.S
+1
-0
arch/alpha/lib/ev6-stxncpy.S
arch/alpha/lib/ev6-stxncpy.S
+5
-5
arch/alpha/lib/stxncpy.S
arch/alpha/lib/stxncpy.S
+5
-6
include/asm-alpha/core_cia.h
include/asm-alpha/core_cia.h
+4
-0
include/asm-alpha/current.h
include/asm-alpha/current.h
+1
-1
include/asm-alpha/pci.h
include/asm-alpha/pci.h
+2
-0
include/asm-alpha/thread_info.h
include/asm-alpha/thread_info.h
+5
-0
include/asm-alpha/topology.h
include/asm-alpha/topology.h
+7
-12
include/asm-alpha/unistd.h
include/asm-alpha/unistd.h
+2
-1
No files found.
arch/alpha/kernel/core_cia.c
View file @
2404c561
...
...
@@ -336,7 +336,7 @@ cia_pci_tbi_try2(struct pci_controller *hose,
}
static
inline
void
cia_prepare_tbia_workaround
(
int
cia_rev
,
int
is_pyxis
)
cia_prepare_tbia_workaround
(
int
window
)
{
unsigned
long
*
ppte
,
pte
;
long
i
;
...
...
@@ -348,20 +348,10 @@ cia_prepare_tbia_workaround(int cia_rev, int is_pyxis)
for
(
i
=
0
;
i
<
CIA_BROKEN_TBIA_SIZE
/
sizeof
(
unsigned
long
);
++
i
)
ppte
[
i
]
=
pte
;
if
(
is_pyxis
||
cia_rev
!=
1
)
{
/* We can use W1 for SG on PYXIS/CIA rev 2. */
*
(
vip
)
CIA_IOC_PCI_W1_BASE
=
CIA_BROKEN_TBIA_BASE
|
3
;
*
(
vip
)
CIA_IOC_PCI_W1_MASK
=
(
CIA_BROKEN_TBIA_SIZE
*
1024
-
1
)
&
0xfff00000
;
*
(
vip
)
CIA_IOC_PCI_T1_BASE
=
virt_to_phys
(
ppte
)
>>
2
;
}
else
{
/* CIA rev 1 can't use W1 or W2 for SG, apparently,
so use W3, which we made sure is not used for DAC. */
*
(
vip
)
CIA_IOC_PCI_W3_BASE
=
CIA_BROKEN_TBIA_BASE
|
3
;
*
(
vip
)
CIA_IOC_PCI_W3_MASK
=
(
CIA_BROKEN_TBIA_SIZE
*
1024
-
1
)
&
0xfff00000
;
*
(
vip
)
CIA_IOC_PCI_T3_BASE
=
virt_to_phys
(
ppte
)
>>
2
;
}
*
(
vip
)
CIA_IOC_PCI_Wn_BASE
(
window
)
=
CIA_BROKEN_TBIA_BASE
|
3
;
*
(
vip
)
CIA_IOC_PCI_Wn_MASK
(
window
)
=
(
CIA_BROKEN_TBIA_SIZE
*
1024
-
1
)
&
0xfff00000
;
*
(
vip
)
CIA_IOC_PCI_Tn_BASE
(
window
)
=
virt_to_phys
(
ppte
)
>>
2
;
}
static
void
__init
...
...
@@ -581,8 +571,7 @@ static void __init
do_init_arch
(
int
is_pyxis
)
{
struct
pci_controller
*
hose
;
int
temp
;
int
cia_rev
;
int
temp
,
cia_rev
,
tbia_window
;
cia_rev
=
*
(
vip
)
CIA_IOC_CIA_REV
&
CIA_REV_MASK
;
printk
(
"pci: cia revision %d%s
\n
"
,
...
...
@@ -712,12 +701,18 @@ do_init_arch(int is_pyxis)
elsewhere, we should not claim that we support DAC unless that
4GB covers all of physical memory.
Also, don't do DAC on CIA rev 1, it has other problems and is
unlikely to have more than 2GB of memory anyway, so direct is
fine.
*/
if
(
cia_rev
==
1
||
is_pyxis
||
max_low_pfn
>
(
0x100000000UL
>>
PAGE_SHIFT
))
{
On CIA rev 1, apparently W1 and W2 can't be used for SG.
At least, there are reports that it doesn't work for Alcor.
In that case, we have no choice but to use W3 for the TBIA
workaround, which means we can't use DAC at all. */
tbia_window
=
1
;
if
(
is_pyxis
)
{
*
(
vip
)
CIA_IOC_PCI_W3_BASE
=
0
;
}
else
if
(
cia_rev
==
1
)
{
*
(
vip
)
CIA_IOC_PCI_W1_BASE
=
0
;
tbia_window
=
3
;
}
else
if
(
max_low_pfn
>
(
0x100000000UL
>>
PAGE_SHIFT
))
{
*
(
vip
)
CIA_IOC_PCI_W3_BASE
=
0
;
}
else
{
*
(
vip
)
CIA_IOC_PCI_W3_BASE
=
0x00000000
|
1
|
8
;
...
...
@@ -729,7 +724,7 @@ do_init_arch(int is_pyxis)
}
/* Prepare workaround for apparently broken tbia. */
cia_prepare_tbia_workaround
(
cia_rev
,
is_pyxis
);
cia_prepare_tbia_workaround
(
tbia_window
);
}
void
__init
...
...
arch/alpha/kernel/pci.c
View file @
2404c561
...
...
@@ -99,20 +99,13 @@ quirk_cypress(struct pci_dev *dev)
them on. So if we use a large direct-map window, or a large SG
window, we must avoid the entire 0xfff00000-0xffffffff region. */
else
if
(
dev
->
class
>>
8
==
PCI_CLASS_BRIDGE_ISA
)
{
#define DMAPSZ (max_low_pfn << PAGE_SHIFT)
/* memory size, not window size */
if
((
__direct_map_base
+
DMAPSZ
-
1
)
>=
0xfff00000UL
)
{
if
(
__direct_map_base
+
__direct_map_size
>=
0xfff00000UL
)
__direct_map_size
=
0xfff00000UL
-
__direct_map_base
;
printk
(
"%s: adjusting direct map size to 0x%lx
\n
"
,
__FUNCTION__
,
__direct_map_size
);
}
else
{
else
{
struct
pci_controller
*
hose
=
dev
->
sysdata
;
struct
pci_iommu_arena
*
pci
=
hose
->
sg_pci
;
if
(
pci
&&
(
pci
->
dma_base
+
pci
->
size
-
1
)
>=
0xfff00000UL
)
{
if
(
pci
&&
pci
->
dma_base
+
pci
->
size
>=
0xfff00000UL
)
pci
->
size
=
0xfff00000UL
-
pci
->
dma_base
;
printk
(
"%s: adjusting PCI S/G size to 0x%x
\n
"
,
__FUNCTION__
,
pci
->
size
);
}
}
}
}
...
...
@@ -263,9 +256,20 @@ pcibios_fixup_bus(struct pci_bus *bus)
struct
pci_dev
*
dev
=
bus
->
self
;
if
(
!
dev
)
{
/* Root bus */
/* Root bus. */
u32
pci_mem_end
;
u32
sg_base
=
hose
->
sg_pci
?
hose
->
sg_pci
->
dma_base
:
~
0
;
unsigned
long
end
;
bus
->
resource
[
0
]
=
hose
->
io_space
;
bus
->
resource
[
1
]
=
hose
->
mem_space
;
/* Adjust hose mem_space limit to prevent PCI allocations
in the iommu windows. */
pci_mem_end
=
min
((
u32
)
__direct_map_base
,
sg_base
)
-
1
;
end
=
hose
->
mem_space
->
start
+
pci_mem_end
;
if
(
hose
->
mem_space
->
end
>
end
)
hose
->
mem_space
->
end
=
end
;
}
for
(
ln
=
bus
->
devices
.
next
;
ln
!=
&
bus
->
devices
;
ln
=
ln
->
next
)
{
...
...
@@ -276,10 +280,11 @@ pcibios_fixup_bus(struct pci_bus *bus)
}
void
pcibios_update_resource
(
struct
pci_dev
*
dev
,
struct
resource
*
roo
t
,
pcibios_update_resource
(
struct
pci_dev
*
dev
,
struct
resource
*
paren
t
,
struct
resource
*
res
,
int
resource
)
{
struct
pci_controller
*
hose
=
dev
->
sysdata
;
struct
resource
*
root
;
int
where
;
u32
reg
;
...
...
@@ -294,8 +299,11 @@ pcibios_update_resource(struct pci_dev *dev, struct resource *root,
/* Point root at the hose root. */
if
(
res
->
flags
&
IORESOURCE_IO
)
root
=
hose
->
io_space
;
if
(
res
->
flags
&
IORESOURCE_MEM
)
else
if
(
res
->
flags
&
IORESOURCE_MEM
)
root
=
hose
->
mem_space
;
else
{
return
;
/* Don't update non-standard resources here. */
}
reg
=
(
res
->
start
-
root
->
start
)
|
(
res
->
flags
&
0xf
);
pci_write_config_dword
(
dev
,
where
,
reg
);
...
...
@@ -359,7 +367,27 @@ pcibios_fixup_pbus_ranges(struct pci_bus * bus,
int
pcibios_enable_device
(
struct
pci_dev
*
dev
,
int
mask
)
{
/* Nothing to do, since we enable all devices at startup. */
u16
cmd
,
oldcmd
;
int
i
;
pci_read_config_word
(
dev
,
PCI_COMMAND
,
&
cmd
);
oldcmd
=
cmd
;
for
(
i
=
0
;
i
<
PCI_NUM_RESOURCES
;
i
++
)
{
struct
resource
*
res
=
&
dev
->
resource
[
i
];
if
(
res
->
flags
&
IORESOURCE_IO
)
cmd
|=
PCI_COMMAND_IO
;
else
if
(
res
->
flags
&
IORESOURCE_MEM
)
cmd
|=
PCI_COMMAND_MEMORY
;
}
if
(
cmd
!=
oldcmd
)
{
printk
(
KERN_DEBUG
"PCI: Enabling device: (%s), cmd %x
\n
"
,
dev
->
slot_name
,
cmd
);
/* Enable the appropriate bits in the PCI command register. */
pci_write_config_word
(
dev
,
PCI_COMMAND
,
cmd
);
}
return
0
;
}
...
...
arch/alpha/kernel/signal.c
View file @
2404c561
...
...
@@ -587,6 +587,10 @@ syscall_restart(unsigned long r0, unsigned long r19,
regs
->
r19
=
r19
;
regs
->
pc
-=
4
;
break
;
case
ERESTART_RESTARTBLOCK
:
current_thread_info
()
->
restart_block
.
fn
=
do_no_restart_syscall
;
regs
->
r0
=
EINTR
;
break
;
}
}
...
...
@@ -628,13 +632,22 @@ do_signal(sigset_t *oldset, struct pt_regs * regs, struct switch_stack * sw,
return
1
;
}
if
(
r0
&&
(
regs
->
r0
==
ERESTARTNOHAND
||
regs
->
r0
==
ERESTARTSYS
||
regs
->
r0
==
ERESTARTNOINTR
))
{
regs
->
r0
=
r0
;
/* reset v0 and a3 and replay syscall */
regs
->
r19
=
r19
;
regs
->
pc
-=
4
;
if
(
r0
)
{
switch
(
regs
->
r0
)
{
case
ERESTARTNOHAND
:
case
ERESTARTSYS
:
case
ERESTARTNOINTR
:
/* Reset v0 and a3 and replay syscall. */
regs
->
r0
=
r0
;
regs
->
r19
=
r19
;
regs
->
pc
-=
4
;
break
;
case
ERESTART_RESTARTBLOCK
:
/* Force v0 to the restart syscall and reply. */
regs
->
r0
=
__NR_restart_syscall
;
regs
->
pc
-=
4
;
break
;
}
}
if
(
single_stepping
)
ptrace_set_bpt
(
current
);
/* re-set breakpoint */
...
...
arch/alpha/kernel/systbls.S
View file @
2404c561
...
...
@@ -431,6 +431,7 @@ sys_call_table:
.
quad
sys_epoll_wait
.
quad
sys_remap_file_pages
/*
410
*/
.
quad
sys_set_tid_address
.
quad
sys_restart_syscall
.
size
sys_call_table
,
.
-
sys_call_table
.
type
sys_call_table
,
@
object
...
...
arch/alpha/lib/ev6-stxncpy.S
View file @
2404c561
...
...
@@ -25,7 +25,7 @@
*
a0
=
unaligned
address
of
the
last
*
word
*
written
*
a2
=
the
number
of
full
words
left
in
COUNT
*
*
Furthermore
,
v0
,
a3
-
a5
,
t11
,
t12
,
and
$at
are
untouched
.
*
Furthermore
,
v0
,
a3
-
a5
,
t11
,
and
$at
are
untouched
.
*
*
Much
of
the
information
about
21264
scheduling
/
coding
comes
from
:
*
Compiler
Writer
's Guide for the Alpha 21264
...
...
@@ -324,7 +324,7 @@ $u_eoc:
extqh
t2
,
a1
,
t0
#
U
:
extract
low
bits
for
last
word
(
stall
)
or
t1
,
t0
,
t1
#
E
:
(
stall
)
cmpbge
zero
,
t1
,
t8
#
E
:
1
:
cmpbge
zero
,
t1
,
t8
#
E
:
mov
t1
,
t0
#
E
:
$u_eocfin
:
#
end
-
of
-
count
,
final
word
...
...
@@ -350,17 +350,17 @@ $unaligned:
mskql
t6
,
a0
,
t6
#
U
:
nop
nop
1
:
subq
a1
,
t4
,
a1
#
E
:
sub
dest
misalignment
from
src
addr
subq
a1
,
t4
,
a1
#
E
:
sub
dest
misalignment
from
src
addr
/
*
If
source
misalignment
is
larger
than
dest
misalignment
,
we
need
extra
startup
checks
to
avoid
SEGV
.
*/
cmplt
t4
,
t5
,
t12
#
E
:
1
:
cmplt
t4
,
t5
,
t12
#
E
:
extql
t1
,
a1
,
t1
#
U
:
shift
src
into
place
lda
t2
,
-
1
#
E
:
for
creating
masks
later
beq
t12
,
$u_head
#
U
:
(
stall
)
mskqh
t2
,
t5
,
t2
#
U
:
begin
src
byte
validity
mask
nop
cmpbge
zero
,
t1
,
t8
#
E
:
is
there
a
zero
?
extql
t2
,
a1
,
t2
#
U
:
or
t8
,
t10
,
t5
#
E
:
test
for
end
-
of
-
count
too
...
...
arch/alpha/lib/stxncpy.S
View file @
2404c561
...
...
@@ -25,7 +25,7 @@
*
a0
=
unaligned
address
of
the
last
*
word
*
written
*
a2
=
the
number
of
full
words
left
in
COUNT
*
*
Furthermore
,
v0
,
a3
-
a5
,
t11
,
t12
,
and
$at
are
untouched
.
*
Furthermore
,
v0
,
a3
-
a5
,
t11
,
and
$at
are
untouched
.
*/
#include <asm/regdef.h>
...
...
@@ -269,7 +269,7 @@ $u_final:
t1
==
the
shifted
high
-
order
bits
from
the
previous
source
word
*/
$u_eoc
:
and
a1
,
7
,
t6
#
e1
:
sll
t1
2
,
t6
,
t6
#
e0
:
sll
t1
0
,
t6
,
t6
#
e0
:
and
t6
,
0xff
,
t6
#
e0
:
bne
t6
,
1
f
#
..
e1
:
...
...
@@ -303,18 +303,17 @@ $unaligned:
ldq_u
t0
,
0
(
a0
)
#
e0
:
lda
t6
,
-
1
#
..
e1
:
mskql
t6
,
a0
,
t6
#
e0
:
1
:
subq
a1
,
t4
,
a1
#
..
e1
:
sub
dest
misalignment
from
src
addr
/
*
If
source
misalignment
is
larger
than
dest
misalignment
,
we
need
extra
startup
checks
to
avoid
SEGV
.
*/
cmplt
t4
,
t5
,
t12
#
e1
:
1
:
cmplt
t4
,
t5
,
t12
#
e1
:
extql
t1
,
a1
,
t1
#
..
e0
:
shift
src
into
place
lda
t2
,
-
1
#
e0
:
for
creating
masks
later
beq
t12
,
$u_head
#
e1
:
beq
t12
,
$u_head
#
..
e1
:
mskqh
t2
,
t5
,
t2
#
e0
:
begin
src
byte
validity
mask
nop
#
e0
:
cmpbge
zero
,
t1
,
t8
#
..
e1
:
is
there
a
zero
?
extql
t2
,
a1
,
t2
#
e0
:
or
t8
,
t10
,
t5
#
..
e1
:
test
for
end
-
of
-
count
too
...
...
include/asm-alpha/core_cia.h
View file @
2404c561
...
...
@@ -202,6 +202,10 @@
#define CIA_IOC_PCI_W3_MASK (IDENT_ADDR + 0x8760000740UL)
#define CIA_IOC_PCI_T3_BASE (IDENT_ADDR + 0x8760000780UL)
#define CIA_IOC_PCI_Wn_BASE(N) (IDENT_ADDR + 0x8760000400UL + (N)*0x100)
#define CIA_IOC_PCI_Wn_MASK(N) (IDENT_ADDR + 0x8760000440UL + (N)*0x100)
#define CIA_IOC_PCI_Tn_BASE(N) (IDENT_ADDR + 0x8760000480UL + (N)*0x100)
#define CIA_IOC_PCI_W_DAC (IDENT_ADDR + 0x87600007C0UL)
/*
...
...
include/asm-alpha/current.h
View file @
2404c561
#ifndef _ALPHA_CURRENT_H
#define _ALPHA_CURRENT_H
#include <
asm
/thread_info.h>
#include <
linux
/thread_info.h>
#define get_current() (current_thread_info()->task + 0)
#define current get_current()
...
...
include/asm-alpha/pci.h
View file @
2404c561
...
...
@@ -6,6 +6,8 @@
#include <linux/spinlock.h>
#include <asm/scatterlist.h>
#include <asm/machvec.h>
#include <asm/io.h>
/*
* The following structure is used to manage multiple PCI busses.
...
...
include/asm-alpha/thread_info.h
View file @
2404c561
...
...
@@ -25,6 +25,8 @@ struct thread_info {
int
bpt_nsaved
;
unsigned
long
bpt_addr
[
2
];
/* breakpoint handling */
unsigned
int
bpt_insn
[
2
];
struct
restart_block
restart_block
;
};
/*
...
...
@@ -35,6 +37,9 @@ struct thread_info {
task: &tsk, \
exec_domain: &default_exec_domain, \
addr_limit: KERNEL_DS, \
.restart_block = { \
.fn = do_no_restart_syscall, \
}, \
}
#define init_thread_info (init_thread_union.thread_info)
...
...
include/asm-alpha/topology.h
View file @
2404c561
#ifndef _ASM_ALPHA_TOPOLOGY_H
#define _ASM_ALPHA_TOPOLOGY_H
#if
def CONFIG_NUMA
#ifdef CONFIG_ALPHA_WILDFIRE
#if
defined(CONFIG_NUMA) && defined(CONFIG_ALPHA_WILDFIRE)
/* With wildfire assume 4 CPUs per node */
#define __cpu_to_node(cpu) ((cpu) >> 2)
#endif
/* CONFIG_ALPHA_WILDFIRE */
#endif
/* CONFIG_NUMA */
#if !defined(CONFIG_NUMA) || !defined(CONFIG_ALPHA_WILDFIRE)
#define __cpu_to_node(cpu) (0)
#define __memblk_to_node(memblk) (0)
#define __parent_node(nid) (0)
#define __node_to_first_cpu(node) (0)
#define __node_to_cpu_mask(node) (cpu_online_map)
#define __node_to_memblk(node) (0)
#endif
/* !CONFIG_NUMA || !CONFIG_ALPHA_WILDFIRE */
#else
/* !CONFIG_NUMA || !CONFIG_ALPHA_WILDFIRE */
#include <asm-generic/topology.h>
#endif
/* CONFIG_NUMA && CONFIG_ALPHA_WILDFIRE */
#endif
/* _ASM_ALPHA_TOPOLOGY_H */
include/asm-alpha/unistd.h
View file @
2404c561
...
...
@@ -349,7 +349,8 @@
#define __NR_sys_epoll_wait 409
#define __NR_remap_file_pages 410
#define __NR_set_tid_address 411
#define NR_SYSCALLS 412
#define __NR_restart_syscall 412
#define NR_SYSCALLS 413
#if defined(__GNUC__)
...
...
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