* [PATCH] powerpc: Make RTAS console init generic
@ 2006-08-17 4:12 Michael Neuling
0 siblings, 0 replies; 10+ messages in thread
From: Michael Neuling @ 2006-08-17 4:12 UTC (permalink / raw)
To: paulus; +Cc: linuxppc-dev, anton
The rtas console doesn't have to be Cell specific. If we get both
RTAS tokens, we should just enabled the console then and there.
Signed-off-by: Michael Neuling <mikey@neuling.org>
---
Fixed RTAS dependency bug.
arch/powerpc/Kconfig | 3 ++-
arch/powerpc/kernel/rtas.c | 5 +++++
arch/powerpc/platforms/cell/setup.c | 4 ----
3 files changed, 7 insertions(+), 5 deletions(-)
Index: linux-2.6-ozlabs/arch/powerpc/Kconfig
===================================================================
--- linux-2.6-ozlabs.orig/arch/powerpc/Kconfig
+++ linux-2.6-ozlabs/arch/powerpc/Kconfig
@@ -426,7 +426,8 @@ config PPC_IBM_CELL_BLADE
select UDBG_RTAS_CONSOLE
config UDBG_RTAS_CONSOLE
- bool
+ bool "RTAS based debug console"
+ depends on PPC_RTAS
default n
config XICS
Index: linux-2.6-ozlabs/arch/powerpc/kernel/rtas.c
===================================================================
--- linux-2.6-ozlabs.orig/arch/powerpc/kernel/rtas.c
+++ linux-2.6-ozlabs/arch/powerpc/kernel/rtas.c
@@ -910,6 +910,11 @@ int __init early_init_dt_scan_rtas(unsig
basep = of_get_flat_dt_prop(node, "get-term-char", NULL);
if (basep)
rtas_getchar_token = *basep;
+
+ if (rtas_putchar_token != RTAS_UNKNOWN_SERVICE &&
+ rtas_getchar_token != RTAS_UNKNOWN_SERVICE)
+ udbg_init_rtas_console();
+
#endif
/* break now */
Index: linux-2.6-ozlabs/arch/powerpc/platforms/cell/setup.c
===================================================================
--- linux-2.6-ozlabs.orig/arch/powerpc/platforms/cell/setup.c
+++ linux-2.6-ozlabs/arch/powerpc/platforms/cell/setup.c
@@ -150,10 +150,6 @@ static int __init cell_probe(void)
!of_flat_dt_is_compatible(root, "IBM,CPBW-1.0"))
return 0;
-#ifdef CONFIG_UDBG_RTAS_CONSOLE
- udbg_init_rtas_console();
-#endif
-
hpte_init_native();
return 1;
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH] powerpc: Make RTAS console init generic
@ 2006-08-16 19:42 Michael Neuling
2006-08-17 2:04 ` Michael Ellerman
0 siblings, 1 reply; 10+ messages in thread
From: Michael Neuling @ 2006-08-16 19:42 UTC (permalink / raw)
To: paulus; +Cc: linuxppc-dev, anton
The rtas console doesn't have to be Cell specific. If we get both
rtas tokens, we should just enabled the console then and there.
Signed-off-by: Michael Neuling <mikey@neuling.org>
---
Updated Kconfig so we can enable it.
arch/powerpc/Kconfig | 2 +-
arch/powerpc/kernel/rtas.c | 5 +++++
arch/powerpc/platforms/cell/setup.c | 4 ----
3 files changed, 6 insertions(+), 5 deletions(-)
Index: linux-2.6-ozlabs/arch/powerpc/Kconfig
===================================================================
--- linux-2.6-ozlabs.orig/arch/powerpc/Kconfig
+++ linux-2.6-ozlabs/arch/powerpc/Kconfig
@@ -426,7 +426,7 @@ config PPC_IBM_CELL_BLADE
select UDBG_RTAS_CONSOLE
config UDBG_RTAS_CONSOLE
- bool
+ bool "RTAS based debug console"
default n
config XICS
Index: linux-2.6-ozlabs/arch/powerpc/kernel/rtas.c
===================================================================
--- linux-2.6-ozlabs.orig/arch/powerpc/kernel/rtas.c
+++ linux-2.6-ozlabs/arch/powerpc/kernel/rtas.c
@@ -910,6 +910,11 @@ int __init early_init_dt_scan_rtas(unsig
basep = of_get_flat_dt_prop(node, "get-term-char", NULL);
if (basep)
rtas_getchar_token = *basep;
+
+ if (rtas_putchar_token != RTAS_UNKNOWN_SERVICE &&
+ rtas_getchar_token != RTAS_UNKNOWN_SERVICE)
+ udbg_init_rtas_console();
+
#endif
/* break now */
Index: linux-2.6-ozlabs/arch/powerpc/platforms/cell/setup.c
===================================================================
--- linux-2.6-ozlabs.orig/arch/powerpc/platforms/cell/setup.c
+++ linux-2.6-ozlabs/arch/powerpc/platforms/cell/setup.c
@@ -150,10 +150,6 @@ static int __init cell_probe(void)
!of_flat_dt_is_compatible(root, "IBM,CPBW-1.0"))
return 0;
-#ifdef CONFIG_UDBG_RTAS_CONSOLE
- udbg_init_rtas_console();
-#endif
-
hpte_init_native();
return 1;
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH] powerpc: Make RTAS console init generic
2006-08-16 19:42 Michael Neuling
@ 2006-08-17 2:04 ` Michael Ellerman
2006-08-17 3:27 ` Michael Neuling
0 siblings, 1 reply; 10+ messages in thread
From: Michael Ellerman @ 2006-08-17 2:04 UTC (permalink / raw)
To: Michael Neuling; +Cc: linuxppc-dev, paulus, anton
[-- Attachment #1: Type: text/plain, Size: 1246 bytes --]
On Wed, 2006-08-16 at 14:42 -0500, Michael Neuling wrote:
> The rtas console doesn't have to be Cell specific. If we get both
> rtas tokens, we should just enabled the console then and there.
>
Seems to work fine on Cell.
> Updated Kconfig so we can enable it.
I enable it via the early debugging menu (under kernel hacking), is that
not good enough?
> arch/powerpc/Kconfig | 2 +-
> arch/powerpc/kernel/rtas.c | 5 +++++
> arch/powerpc/platforms/cell/setup.c | 4 ----
> 3 files changed, 6 insertions(+), 5 deletions(-)
>
> Index: linux-2.6-ozlabs/arch/powerpc/Kconfig
> ===================================================================
> --- linux-2.6-ozlabs.orig/arch/powerpc/Kconfig
> +++ linux-2.6-ozlabs/arch/powerpc/Kconfig
> @@ -426,7 +426,7 @@ config PPC_IBM_CELL_BLADE
> select UDBG_RTAS_CONSOLE
>
> config UDBG_RTAS_CONSOLE
> - bool
> + bool "RTAS based debug console"
> default n
This should probably depend on RTAS?
cheers
--
Michael Ellerman
IBM OzLabs
wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)
We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person
[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 191 bytes --]
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH] powerpc: Make RTAS console init generic
2006-08-17 2:04 ` Michael Ellerman
@ 2006-08-17 3:27 ` Michael Neuling
2006-08-17 3:45 ` Michael Ellerman
0 siblings, 1 reply; 10+ messages in thread
From: Michael Neuling @ 2006-08-17 3:27 UTC (permalink / raw)
To: michael; +Cc: linuxppc-dev, paulus, anton
> Seems to work fine on Cell.
Kewl
> > Updated Kconfig so we can enable it.
>
> I enable it via the early debugging menu (under kernel hacking), is that
> not good enough?
Doesn't that enable CONFIG_PPC_EARLY_DEBUG_RTAS_CONSOLE not
CONFIG_UDBG_RTAS_CONSOLE?
Without the Kconfig update you don't seem to get presented with an
option but I'm no kbuild expert.
> > config UDBG_RTAS_CONSOLE
> > - bool
> > + bool "RTAS based debug console"
> > default n
>
> This should probably depend on RTAS?
Yeap.
Mikey
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH] powerpc: Make RTAS console init generic
2006-08-17 3:27 ` Michael Neuling
@ 2006-08-17 3:45 ` Michael Ellerman
2006-08-17 4:02 ` Michael Neuling
0 siblings, 1 reply; 10+ messages in thread
From: Michael Ellerman @ 2006-08-17 3:45 UTC (permalink / raw)
To: Michael Neuling; +Cc: linuxppc-dev, paulus, anton
[-- Attachment #1: Type: text/plain, Size: 812 bytes --]
On Wed, 2006-08-16 at 22:27 -0500, Michael Neuling wrote:
> > Seems to work fine on Cell.
>
> Kewl
>
> > > Updated Kconfig so we can enable it.
> >
> > I enable it via the early debugging menu (under kernel hacking), is that
> > not good enough?
>
> Doesn't that enable CONFIG_PPC_EARLY_DEBUG_RTAS_CONSOLE not
> CONFIG_UDBG_RTAS_CONSOLE?
Yeah, but that then turns on CONFIG_UDBG_RTAS_CONSOLE also. I guess you
guys want to be able to turn on the later without the former, so fair
enough. We turn it on always on the Cell via the PPC_IBM_CELL_BLADE
entry.
cheers
--
Michael Ellerman
IBM OzLabs
wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)
We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person
[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 191 bytes --]
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH] powerpc: Make RTAS console init generic
@ 2006-08-16 4:00 Michael Neuling
2006-08-16 5:21 ` Michael Ellerman
0 siblings, 1 reply; 10+ messages in thread
From: Michael Neuling @ 2006-08-16 4:00 UTC (permalink / raw)
To: paulus; +Cc: linuxppc-dev, anton
The RTAS console doesn't have to be Cell specific. If we have both
the put and get char RTAS functions, init the rtas console.
Signed-off-by: Michael Neuling <mikey@neuling.org>
---
Paulus: This is relatively low risk, so if the Cell guys ack it, it
could be a candidate for 2.6.18.
arch/powerpc/kernel/rtas.c | 5 +++++
arch/powerpc/platforms/cell/setup.c | 4 ----
2 files changed, 5 insertions(+), 4 deletions(-)
Index: linux-2.6-ozlabs/arch/powerpc/kernel/rtas.c
===================================================================
--- linux-2.6-ozlabs.orig/arch/powerpc/kernel/rtas.c
+++ linux-2.6-ozlabs/arch/powerpc/kernel/rtas.c
@@ -910,6 +910,11 @@ int __init early_init_dt_scan_rtas(unsig
basep = of_get_flat_dt_prop(node, "get-term-char", NULL);
if (basep)
rtas_getchar_token = *basep;
+
+ if (rtas_putchar_token != RTAS_UNKNOWN_SERVICE &&
+ rtas_getchar_token != RTAS_UNKNOWN_SERVICE)
+ udbg_init_rtas_console();
+
#endif
/* break now */
Index: linux-2.6-ozlabs/arch/powerpc/platforms/cell/setup.c
===================================================================
--- linux-2.6-ozlabs.orig/arch/powerpc/platforms/cell/setup.c
+++ linux-2.6-ozlabs/arch/powerpc/platforms/cell/setup.c
@@ -150,10 +150,6 @@ static int __init cell_probe(void)
!of_flat_dt_is_compatible(root, "IBM,CPBW-1.0"))
return 0;
-#ifdef CONFIG_UDBG_RTAS_CONSOLE
- udbg_init_rtas_console();
-#endif
-
hpte_init_native();
return 1;
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH] powerpc: Make RTAS console init generic
2006-08-16 4:00 Michael Neuling
@ 2006-08-16 5:21 ` Michael Ellerman
2006-08-16 15:22 ` Michael Neuling
0 siblings, 1 reply; 10+ messages in thread
From: Michael Ellerman @ 2006-08-16 5:21 UTC (permalink / raw)
To: Michael Neuling; +Cc: linuxppc-dev, paulus, anton
[-- Attachment #1: Type: text/plain, Size: 1694 bytes --]
On Tue, 2006-08-15 at 23:00 -0500, Michael Neuling wrote:
> The RTAS console doesn't have to be Cell specific. If we have both
> the put and get char RTAS functions, init the rtas console.
>
> Index: linux-2.6-ozlabs/arch/powerpc/kernel/rtas.c
> ===================================================================
> --- linux-2.6-ozlabs.orig/arch/powerpc/kernel/rtas.c
> +++ linux-2.6-ozlabs/arch/powerpc/kernel/rtas.c
> @@ -910,6 +910,11 @@ int __init early_init_dt_scan_rtas(unsig
> basep = of_get_flat_dt_prop(node, "get-term-char", NULL);
> if (basep)
> rtas_getchar_token = *basep;
> +
> + if (rtas_putchar_token != RTAS_UNKNOWN_SERVICE &&
> + rtas_getchar_token != RTAS_UNKNOWN_SERVICE)
> + udbg_init_rtas_console();
> +
> #endif
>
> /* break now */
> Index: linux-2.6-ozlabs/arch/powerpc/platforms/cell/setup.c
> ===================================================================
> --- linux-2.6-ozlabs.orig/arch/powerpc/platforms/cell/setup.c
> +++ linux-2.6-ozlabs/arch/powerpc/platforms/cell/setup.c
> @@ -150,10 +150,6 @@ static int __init cell_probe(void)
> !of_flat_dt_is_compatible(root, "IBM,CPBW-1.0"))
> return 0;
>
> -#ifdef CONFIG_UDBG_RTAS_CONSOLE
> - udbg_init_rtas_console();
> -#endif
> -
I'd like to see it still guarded by UDBG_RTAS_CONSOLE, otherwise there's
no way to select a different type of early console on a machine which
has those tokens in the device tree.
cheers
--
Michael Ellerman
IBM OzLabs
wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)
We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person
[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 191 bytes --]
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH] powerpc: Make RTAS console init generic
2006-08-16 5:21 ` Michael Ellerman
@ 2006-08-16 15:22 ` Michael Neuling
2006-08-17 0:44 ` Michael Ellerman
0 siblings, 1 reply; 10+ messages in thread
From: Michael Neuling @ 2006-08-16 15:22 UTC (permalink / raw)
To: michael; +Cc: linuxppc-dev, paulus, anton
In message <1155705695.12715.7.camel@localhost.localdomain> you wrote:
>
> --=-PNKyW5KJv4630LcmkXVt
> Content-Type: text/plain
> Content-Transfer-Encoding: quoted-printable
>
> On Tue, 2006-08-15 at 23:00 -0500, Michael Neuling wrote:
> > The RTAS console doesn't have to be Cell specific. If we have both
> > the put and get char RTAS functions, init the rtas console.
> >=20
> > Index: linux-2.6-ozlabs/arch/powerpc/kernel/rtas.c
> > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> > --- linux-2.6-ozlabs.orig/arch/powerpc/kernel/rtas.c
> > +++ linux-2.6-ozlabs/arch/powerpc/kernel/rtas.c
> > @@ -910,6 +910,11 @@ int __init early_init_dt_scan_rtas(unsig
> > basep =3D of_get_flat_dt_prop(node, "get-term-char", NULL);
> > if (basep)
> > rtas_getchar_token =3D *basep;
> > +
> > + if (rtas_putchar_token !=3D RTAS_UNKNOWN_SERVICE &&
> > + rtas_getchar_token !=3D RTAS_UNKNOWN_SERVICE)
> > + udbg_init_rtas_console();
> > +
> > #endif
> > =20
> > /* break now */
> > Index: linux-2.6-ozlabs/arch/powerpc/platforms/cell/setup.c
> > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> > --- linux-2.6-ozlabs.orig/arch/powerpc/platforms/cell/setup.c
> > +++ linux-2.6-ozlabs/arch/powerpc/platforms/cell/setup.c
> > @@ -150,10 +150,6 @@ static int __init cell_probe(void)
> > !of_flat_dt_is_compatible(root, "IBM,CPBW-1.0"))
> > return 0;
> > =20
> > -#ifdef CONFIG_UDBG_RTAS_CONSOLE
> > - udbg_init_rtas_console();
> > -#endif
> > -
>
> I'd like to see it still guarded by UDBG_RTAS_CONSOLE, otherwise there's
> no way to select a different type of early console on a machine which
> has those tokens in the device tree.
Agreed but that section in rtas.c is already guarded by
UDBG_RTAS_CONSOLE. After applying the patch, it looks like:
#ifdef CONFIG_UDBG_RTAS_CONSOLE
basep = of_get_flat_dt_prop(node, "put-term-char", NULL);
if (basep)
rtas_putchar_token = *basep;
basep = of_get_flat_dt_prop(node, "get-term-char", NULL);
if (basep)
rtas_getchar_token = *basep;
if (rtas_putchar_token != RTAS_UNKNOWN_SERVICE &&
rtas_getchar_token != RTAS_UNKNOWN_SERVICE)
udbg_init_rtas_console();
#endif
Mikey
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH] powerpc: Make RTAS console init generic
2006-08-16 15:22 ` Michael Neuling
@ 2006-08-17 0:44 ` Michael Ellerman
0 siblings, 0 replies; 10+ messages in thread
From: Michael Ellerman @ 2006-08-17 0:44 UTC (permalink / raw)
To: Michael Neuling; +Cc: linuxppc-dev, paulus, anton
[-- Attachment #1: Type: text/plain, Size: 2991 bytes --]
On Wed, 2006-08-16 at 10:22 -0500, Michael Neuling wrote:
> In message <1155705695.12715.7.camel@localhost.localdomain> you wrote:
> >
> > --=-PNKyW5KJv4630LcmkXVt
> > Content-Type: text/plain
> > Content-Transfer-Encoding: quoted-printable
> >
> > On Tue, 2006-08-15 at 23:00 -0500, Michael Neuling wrote:
> > > The RTAS console doesn't have to be Cell specific. If we have both
> > > the put and get char RTAS functions, init the rtas console.
> > >=20
> > > Index: linux-2.6-ozlabs/arch/powerpc/kernel/rtas.c
> > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
> > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
> > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> > > --- linux-2.6-ozlabs.orig/arch/powerpc/kernel/rtas.c
> > > +++ linux-2.6-ozlabs/arch/powerpc/kernel/rtas.c
> > > @@ -910,6 +910,11 @@ int __init early_init_dt_scan_rtas(unsig
> > > basep =3D of_get_flat_dt_prop(node, "get-term-char", NULL);
> > > if (basep)
> > > rtas_getchar_token =3D *basep;
> > > +
> > > + if (rtas_putchar_token !=3D RTAS_UNKNOWN_SERVICE &&
> > > + rtas_getchar_token !=3D RTAS_UNKNOWN_SERVICE)
> > > + udbg_init_rtas_console();
> > > +
> > > #endif
> > > =20
> > > /* break now */
> > > Index: linux-2.6-ozlabs/arch/powerpc/platforms/cell/setup.c
> > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
> > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
> > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> > > --- linux-2.6-ozlabs.orig/arch/powerpc/platforms/cell/setup.c
> > > +++ linux-2.6-ozlabs/arch/powerpc/platforms/cell/setup.c
> > > @@ -150,10 +150,6 @@ static int __init cell_probe(void)
> > > !of_flat_dt_is_compatible(root, "IBM,CPBW-1.0"))
> > > return 0;
> > > =20
> > > -#ifdef CONFIG_UDBG_RTAS_CONSOLE
> > > - udbg_init_rtas_console();
> > > -#endif
> > > -
> >
> > I'd like to see it still guarded by UDBG_RTAS_CONSOLE, otherwise there's
> > no way to select a different type of early console on a machine which
> > has those tokens in the device tree.
>
> Agreed but that section in rtas.c is already guarded by
> UDBG_RTAS_CONSOLE. After applying the patch, it looks like:
>
> #ifdef CONFIG_UDBG_RTAS_CONSOLE
> basep = of_get_flat_dt_prop(node, "put-term-char", NULL);
> if (basep)
> rtas_putchar_token = *basep;
>
> basep = of_get_flat_dt_prop(node, "get-term-char", NULL);
> if (basep)
> rtas_getchar_token = *basep;
>
> if (rtas_putchar_token != RTAS_UNKNOWN_SERVICE &&
> rtas_getchar_token != RTAS_UNKNOWN_SERVICE)
> udbg_init_rtas_console();
>
> #endif
Ah sorry, I just looked at the patch.
cheers
--
Michael Ellerman
IBM OzLabs
wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)
We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person
[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 191 bytes --]
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2006-08-17 4:12 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz follow: Atom feed
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2006-08-17 4:12 [PATCH] powerpc: Make RTAS console init generic Michael Neuling
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2006-08-16 19:42 Michael Neuling
2006-08-17 2:04 ` Michael Ellerman
2006-08-17 3:27 ` Michael Neuling
2006-08-17 3:45 ` Michael Ellerman
2006-08-17 4:02 ` Michael Neuling
2006-08-16 4:00 Michael Neuling
2006-08-16 5:21 ` Michael Ellerman
2006-08-16 15:22 ` Michael Neuling
2006-08-17 0:44 ` Michael Ellerman
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