Skip to content
Projects
Groups
Snippets
Help
Loading...
Help
Support
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
L
linux
Project overview
Project overview
Details
Activity
Releases
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Issues
0
Issues
0
List
Boards
Labels
Milestones
Merge Requests
0
Merge Requests
0
Analytics
Analytics
Repository
Value Stream
Wiki
Wiki
Snippets
Snippets
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Create a new issue
Commits
Issue Boards
Open sidebar
nexedi
linux
Commits
b13e3088
Commit
b13e3088
authored
Mar 11, 2003
by
David S. Miller
Committed by
David S. Miller
Mar 11, 2003
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
[SPARC64]: Move sparc64_init_timers into time.c
parent
e4c29577
Changes
3
Hide whitespace changes
Inline
Side-by-side
Showing
3 changed files
with
107 additions
and
109 deletions
+107
-109
arch/sparc64/kernel/irq.c
arch/sparc64/kernel/irq.c
+0
-107
arch/sparc64/kernel/time.c
arch/sparc64/kernel/time.c
+107
-0
include/asm-sparc64/irq.h
include/asm-sparc64/irq.h
+0
-2
No files found.
arch/sparc64/kernel/irq.c
View file @
b13e3088
...
...
@@ -946,113 +946,6 @@ int probe_irq_off(unsigned long mask)
return
0
;
}
/* This is gets the master TICK_INT timer going. */
void
sparc64_init_timers
(
void
(
*
cfunc
)(
int
,
void
*
,
struct
pt_regs
*
),
unsigned
long
*
clock
)
{
unsigned
long
pstate
;
extern
unsigned
long
timer_tick_offset
;
int
node
,
err
;
#ifdef CONFIG_SMP
extern
void
smp_tick_init
(
void
);
#endif
if
(
!
SPARC64_USE_STICK
)
{
node
=
linux_cpus
[
0
].
prom_node
;
*
clock
=
prom_getint
(
node
,
"clock-frequency"
);
}
else
{
node
=
prom_root_node
;
*
clock
=
prom_getint
(
node
,
"stick-frequency"
);
}
timer_tick_offset
=
*
clock
/
HZ
;
#ifdef CONFIG_SMP
smp_tick_init
();
#endif
/* Register IRQ handler. */
err
=
request_irq
(
build_irq
(
0
,
0
,
0UL
,
0UL
),
cfunc
,
SA_STATIC_ALLOC
,
"timer"
,
NULL
);
if
(
err
)
{
prom_printf
(
"Serious problem, cannot register TICK_INT
\n
"
);
prom_halt
();
}
/* Guarentee that the following sequences execute
* uninterrupted.
*/
__asm__
__volatile__
(
"rdpr %%pstate, %0
\n\t
"
"wrpr %0, %1, %%pstate"
:
"=r"
(
pstate
)
:
"i"
(
PSTATE_IE
));
/* Set things up so user can access tick register for profiling
* purposes. Also workaround BB_ERRATA_1 by doing a dummy
* read back of %tick after writing it.
*/
__asm__
__volatile__
(
" sethi %%hi(0x80000000), %%g1
\n
"
" ba,pt %%xcc, 1f
\n
"
" sllx %%g1, 32, %%g1
\n
"
" .align 64
\n
"
"1: rd %%tick, %%g2
\n
"
" add %%g2, 6, %%g2
\n
"
" andn %%g2, %%g1, %%g2
\n
"
" wrpr %%g2, 0, %%tick
\n
"
" rdpr %%tick, %%g0"
:
/* no outputs */
:
/* no inputs */
:
"g1"
,
"g2"
);
/* Workaround for Spitfire Errata (#54 I think??), I discovered
* this via Sun BugID 4008234, mentioned in Solaris-2.5.1 patch
* number 103640.
*
* On Blackbird writes to %tick_cmpr can fail, the
* workaround seems to be to execute the wr instruction
* at the start of an I-cache line, and perform a dummy
* read back from %tick_cmpr right after writing to it. -DaveM
*/
if
(
!
SPARC64_USE_STICK
)
{
__asm__
__volatile__
(
" rd %%tick, %%g1
\n
"
" ba,pt %%xcc, 1f
\n
"
" add %%g1, %0, %%g1
\n
"
" .align 64
\n
"
"1: wr %%g1, 0x0, %%tick_cmpr
\n
"
" rd %%tick_cmpr, %%g0"
:
/* no outputs */
:
"r"
(
timer_tick_offset
)
:
"g1"
);
}
else
{
/* Let the user get at STICK too. */
__asm__
__volatile__
(
" sethi %%hi(0x80000000), %%g1
\n
"
" sllx %%g1, 32, %%g1
\n
"
" rd %%asr24, %%g2
\n
"
" andn %%g2, %%g1, %%g2
\n
"
" wr %%g2, 0, %%asr24"
:
/* no outputs */
:
/* no inputs */
:
"g1"
,
"g2"
);
__asm__
__volatile__
(
" rd %%asr24, %%g1
\n
"
" add %%g1, %0, %%g1
\n
"
" wr %%g1, 0x0, %%asr25"
:
/* no outputs */
:
"r"
(
timer_tick_offset
)
:
"g1"
);
}
/* Restore PSTATE_IE. */
__asm__
__volatile__
(
"wrpr %0, 0x0, %%pstate"
:
/* no outputs */
:
"r"
(
pstate
));
local_irq_enable
();
}
#ifdef CONFIG_SMP
static
int
retarget_one_irq
(
struct
irqaction
*
p
,
int
goal_cpu
)
{
...
...
arch/sparc64/kernel/time.c
View file @
b13e3088
...
...
@@ -620,6 +620,113 @@ void __init clock_probe(void)
local_irq_restore
(
flags
);
}
/* This is gets the master TICK_INT timer going. */
static
void
sparc64_init_timers
(
void
(
*
cfunc
)(
int
,
void
*
,
struct
pt_regs
*
),
unsigned
long
*
clock
)
{
unsigned
long
pstate
;
extern
unsigned
long
timer_tick_offset
;
int
node
,
err
;
#ifdef CONFIG_SMP
extern
void
smp_tick_init
(
void
);
#endif
if
(
!
SPARC64_USE_STICK
)
{
node
=
linux_cpus
[
0
].
prom_node
;
*
clock
=
prom_getint
(
node
,
"clock-frequency"
);
}
else
{
node
=
prom_root_node
;
*
clock
=
prom_getint
(
node
,
"stick-frequency"
);
}
timer_tick_offset
=
*
clock
/
HZ
;
#ifdef CONFIG_SMP
smp_tick_init
();
#endif
/* Register IRQ handler. */
err
=
request_irq
(
build_irq
(
0
,
0
,
0UL
,
0UL
),
cfunc
,
SA_STATIC_ALLOC
,
"timer"
,
NULL
);
if
(
err
)
{
prom_printf
(
"Serious problem, cannot register TICK_INT
\n
"
);
prom_halt
();
}
/* Guarentee that the following sequences execute
* uninterrupted.
*/
__asm__
__volatile__
(
"rdpr %%pstate, %0
\n\t
"
"wrpr %0, %1, %%pstate"
:
"=r"
(
pstate
)
:
"i"
(
PSTATE_IE
));
/* Set things up so user can access tick register for profiling
* purposes. Also workaround BB_ERRATA_1 by doing a dummy
* read back of %tick after writing it.
*/
__asm__
__volatile__
(
" sethi %%hi(0x80000000), %%g1
\n
"
" ba,pt %%xcc, 1f
\n
"
" sllx %%g1, 32, %%g1
\n
"
" .align 64
\n
"
"1: rd %%tick, %%g2
\n
"
" add %%g2, 6, %%g2
\n
"
" andn %%g2, %%g1, %%g2
\n
"
" wrpr %%g2, 0, %%tick
\n
"
" rdpr %%tick, %%g0"
:
/* no outputs */
:
/* no inputs */
:
"g1"
,
"g2"
);
/* Workaround for Spitfire Errata (#54 I think??), I discovered
* this via Sun BugID 4008234, mentioned in Solaris-2.5.1 patch
* number 103640.
*
* On Blackbird writes to %tick_cmpr can fail, the
* workaround seems to be to execute the wr instruction
* at the start of an I-cache line, and perform a dummy
* read back from %tick_cmpr right after writing to it. -DaveM
*/
if
(
!
SPARC64_USE_STICK
)
{
__asm__
__volatile__
(
" rd %%tick, %%g1
\n
"
" ba,pt %%xcc, 1f
\n
"
" add %%g1, %0, %%g1
\n
"
" .align 64
\n
"
"1: wr %%g1, 0x0, %%tick_cmpr
\n
"
" rd %%tick_cmpr, %%g0"
:
/* no outputs */
:
"r"
(
timer_tick_offset
)
:
"g1"
);
}
else
{
/* Let the user get at STICK too. */
__asm__
__volatile__
(
" sethi %%hi(0x80000000), %%g1
\n
"
" sllx %%g1, 32, %%g1
\n
"
" rd %%asr24, %%g2
\n
"
" andn %%g2, %%g1, %%g2
\n
"
" wr %%g2, 0, %%asr24"
:
/* no outputs */
:
/* no inputs */
:
"g1"
,
"g2"
);
__asm__
__volatile__
(
" rd %%asr24, %%g1
\n
"
" add %%g1, %0, %%g1
\n
"
" wr %%g1, 0x0, %%asr25"
:
/* no outputs */
:
"r"
(
timer_tick_offset
)
:
"g1"
);
}
/* Restore PSTATE_IE. */
__asm__
__volatile__
(
"wrpr %0, 0x0, %%pstate"
:
/* no outputs */
:
"r"
(
pstate
));
local_irq_enable
();
}
void
__init
time_init
(
void
)
{
/* clock_probe() is now done at end of [se]bus_init on sparc64
...
...
include/asm-sparc64/irq.h
View file @
b13e3088
...
...
@@ -117,8 +117,6 @@ static __inline__ char *__irq_itoa(unsigned int irq)
extern
void
disable_irq
(
unsigned
int
);
#define disable_irq_nosync disable_irq
extern
void
enable_irq
(
unsigned
int
);
extern
void
sparc64_init_timers
(
void
(
*
lvl10_irq
)(
int
,
void
*
,
struct
pt_regs
*
),
unsigned
long
*
);
extern
unsigned
int
build_irq
(
int
pil
,
int
inofixup
,
unsigned
long
iclr
,
unsigned
long
imap
);
extern
unsigned
int
sbus_build_irq
(
void
*
sbus
,
unsigned
int
ino
);
extern
unsigned
int
psycho_build_irq
(
void
*
psycho
,
int
imap_off
,
int
ino
,
int
need_dma_sync
);
...
...
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment