[PATCH] OMAP3: l3: fix for "irq 10: nobody cared" message

[PATCH] OMAP3: l3: fix for "irq 10: nobody cared" message

[Omar Ramirez Luna]

If an error occurs in the L3 on any other initiator than MPU,
the interrupt goes unhandled given that the 'base' register
was calculated with the initialized err_base value (which
coincidentally points to MPU) and not with the actual source
of the error.

Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>
---
 arch/arm/mach-omap2/omap_l3_smx.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap2/omap_l3_smx.c b/arch/arm/mach-omap2/omap_l3_smx.c
index 5f2da75..da917c2 100644
--- a/arch/arm/mach-omap2/omap_l3_smx.c
+++ b/arch/arm/mach-omap2/omap_l3_smx.c
@@ -196,11 +196,12 @@ static irqreturn_t omap3_l3_app_irq(int irq, void *_l3)
 		/* No timeout error for debug sources */
 	}
 
-	base = ((l3->rt) + (*(omap3_l3_bases[int_type] + err_source)));
-
 	/* identify the error source */
 	for (err_source = 0; !(status & (1 << err_source)); err_source++)
 									;
+
+	base = ((l3->rt) + (*(omap3_l3_bases[int_type] + err_source)));
+
 	error = omap3_l3_readll(base, L3_ERROR_LOG);
 
 	if (error) {
-- 
1.7.1

Re: [PATCH] OMAP3: l3: fix for "irq 10: nobody cared" message

[Ramirez Luna, Omar]

On Fri, Mar 25, 2011 at 7:29 PM, Omar Ramirez Luna <omar.ramirez@ti.com> wrote:
> If an error occurs in the L3 on any other initiator than MPU,
> the interrupt goes unhandled given that the 'base' register
> was calculated with the initialized err_base value (which

s/err_base/err_source/

> coincidentally points to MPU) and not with the actual source
> of the error.
>
> Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>

Regards,

Omar

Re: [PATCH] OMAP3: l3: fix for "irq 10: nobody cared" message

[Sergei Shtylyov]

Hello.

On 26-03-2011 3:29, Omar Ramirez Luna wrote:

> If an error occurs in the L3 on any other initiator than MPU,
> the interrupt goes unhandled given that the 'base' register
> was calculated with the initialized err_base value (which
> coincidentally points to MPU) and not with the actual source
> of the error.

> Signed-off-by: Omar Ramirez Luna<omar.ramirez@ti.com>
> ---
>   arch/arm/mach-omap2/omap_l3_smx.c |    5 +++--
>   1 files changed, 3 insertions(+), 2 deletions(-)

> diff --git a/arch/arm/mach-omap2/omap_l3_smx.c b/arch/arm/mach-omap2/omap_l3_smx.c
> index 5f2da75..da917c2 100644
> --- a/arch/arm/mach-omap2/omap_l3_smx.c
> +++ b/arch/arm/mach-omap2/omap_l3_smx.c
> @@ -196,11 +196,12 @@ static irqreturn_t omap3_l3_app_irq(int irq, void *_l3)
>   		/* No timeout error for debug sources */
>   	}
>
> -	base = ((l3->rt) + (*(omap3_l3_bases[int_type] + err_source)));
> -
>   	/* identify the error source */
>   	for (err_source = 0; !(status&  (1<<  err_source)); err_source++)
>   									;
> +
> +	base = ((l3->rt) + (*(omap3_l3_bases[int_type] + err_source)));
> +

    What's the point of having () around rvalue? You could drop them, while at 
it...

WBR, Sergei

Re: [PATCH] OMAP3: l3: fix for "irq 10: nobody cared" message

[Felipe Contreras]

On Sat, Mar 26, 2011 at 2:29 AM, Omar Ramirez Luna <omar.ramirez@ti.com> wrote:
> If an error occurs in the L3 on any other initiator than MPU,
> the interrupt goes unhandled given that the 'base' register
> was calculated with the initialized err_base value (which
> coincidentally points to MPU) and not with the actual source
> of the error.
>
> Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>
> ---
>  arch/arm/mach-omap2/omap_l3_smx.c |    5 +++--
>  1 files changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/omap_l3_smx.c b/arch/arm/mach-omap2/omap_l3_smx.c
> index 5f2da75..da917c2 100644
> --- a/arch/arm/mach-omap2/omap_l3_smx.c
> +++ b/arch/arm/mach-omap2/omap_l3_smx.c
> @@ -196,11 +196,12 @@ static irqreturn_t omap3_l3_app_irq(int irq, void *_l3)
>                /* No timeout error for debug sources */
>        }
>
> -       base = ((l3->rt) + (*(omap3_l3_bases[int_type] + err_source)));
> -
>        /* identify the error source */
>        for (err_source = 0; !(status & (1 << err_source)); err_source++)
>                                                                        ;
> +
> +       base = ((l3->rt) + (*(omap3_l3_bases[int_type] + err_source)));
> +
>        error = omap3_l3_readll(base, L3_ERROR_LOG);

One extra space too much.

-- 
Felipe Contreras
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Re: [PATCH] OMAP3: l3: fix for "irq 10: nobody cared" message

[Ramirez Luna, Omar]

On Sun, Mar 27, 2011 at 8:30 PM, Felipe Contreras
<felipe.contreras@gmail.com> wrote:
> On Sat, Mar 26, 2011 at 2:29 AM, Omar Ramirez Luna <omar.ramirez@ti.com> wrote:
>> If an error occurs in the L3 on any other initiator than MPU,
>> the interrupt goes unhandled given that the 'base' register
>> was calculated with the initialized err_base value (which
>> coincidentally points to MPU) and not with the actual source
>> of the error.
>>
>> Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>
>> ---
>>  arch/arm/mach-omap2/omap_l3_smx.c |    5 +++--
>>  1 files changed, 3 insertions(+), 2 deletions(-)
>>
>> diff --git a/arch/arm/mach-omap2/omap_l3_smx.c b/arch/arm/mach-omap2/omap_l3_smx.c
>> index 5f2da75..da917c2 100644
>> --- a/arch/arm/mach-omap2/omap_l3_smx.c
>> +++ b/arch/arm/mach-omap2/omap_l3_smx.c
>> @@ -196,11 +196,12 @@ static irqreturn_t omap3_l3_app_irq(int irq, void *_l3)
>>                /* No timeout error for debug sources */
>>        }
>>
>> -       base = ((l3->rt) + (*(omap3_l3_bases[int_type] + err_source)));
>> -
>>        /* identify the error source */
>>        for (err_source = 0; !(status & (1 << err_source)); err_source++)
>>                                                                        ;
>> +
>> +       base = ((l3->rt) + (*(omap3_l3_bases[int_type] + err_source)));
>> +
>>        error = omap3_l3_readll(base, L3_ERROR_LOG);
>
> One extra space too much.

Between base and error assignments? Yep, I can remove it.

Regards,

Omar
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Re: [PATCH] OMAP3: l3: fix for "irq 10: nobody cared" message

[Ramirez Luna, Omar]

On Sat, Mar 26, 2011 at 4:38 PM, Sergei Shtylyov <sshtylyov@mvista.com> wrote:
> Hello.
>
> On 26-03-2011 3:29, Omar Ramirez Luna wrote:
>
>> If an error occurs in the L3 on any other initiator than MPU,
>> the interrupt goes unhandled given that the 'base' register
>> was calculated with the initialized err_base value (which
>> coincidentally points to MPU) and not with the actual source
>> of the error.
>
>> Signed-off-by: Omar Ramirez Luna<omar.ramirez@ti.com>
>> ---
>>  arch/arm/mach-omap2/omap_l3_smx.c |    5 +++--
>>  1 files changed, 3 insertions(+), 2 deletions(-)
>
>> diff --git a/arch/arm/mach-omap2/omap_l3_smx.c
>> b/arch/arm/mach-omap2/omap_l3_smx.c
>> index 5f2da75..da917c2 100644
>> --- a/arch/arm/mach-omap2/omap_l3_smx.c
>> +++ b/arch/arm/mach-omap2/omap_l3_smx.c
>> @@ -196,11 +196,12 @@ static irqreturn_t omap3_l3_app_irq(int irq, void
>> *_l3)
>>                /* No timeout error for debug sources */
>>        }
>>
>> -       base = ((l3->rt) + (*(omap3_l3_bases[int_type] + err_source)));
>> -
>>        /* identify the error source */
>>        for (err_source = 0; !(status&  (1<<  err_source)); err_source++)
>>                                                                        ;
>> +
>> +       base = ((l3->rt) + (*(omap3_l3_bases[int_type] + err_source)));
>> +
>
>   What's the point of having () around rvalue? You could drop them, while at
> it...

You're right, will do.

Regards,

Omar
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RE: [PATCH] OMAP3: l3: fix for "irq 10: nobody cared" message

[Santosh Shilimkar]

> -----Original Message-----
> From: Omar Ramirez Luna [mailto:omar.ramirez@ti.com]
> Sent: Saturday, March 26, 2011 6:00 AM
> To: Tony Lindgren
> Cc: Russell King; l-o; lak; sricharan; Santosh Shilimkar; Felipe
> Balbi; Benoit Cousson; Omar Ramirez Luna
> Subject: [PATCH] OMAP3: l3: fix for "irq 10: nobody cared" message
>
> If an error occurs in the L3 on any other initiator than MPU,
> the interrupt goes unhandled given that the 'base' register
> was calculated with the initialized err_base value (which
> coincidentally points to MPU) and not with the actual source
> of the error.
>
> Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>

Patch looks good. Did you observe this with DSP initiator??

Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>

> ---
>  arch/arm/mach-omap2/omap_l3_smx.c |    5 +++--
>  1 files changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/omap_l3_smx.c b/arch/arm/mach-
> omap2/omap_l3_smx.c
> index 5f2da75..da917c2 100644
> --- a/arch/arm/mach-omap2/omap_l3_smx.c
> +++ b/arch/arm/mach-omap2/omap_l3_smx.c
> @@ -196,11 +196,12 @@ static irqreturn_t omap3_l3_app_irq(int irq,
> void *_l3)
>  		/* No timeout error for debug sources */
>  	}
>
> -	base = ((l3->rt) + (*(omap3_l3_bases[int_type] +
> err_source)));
> -
>  	/* identify the error source */
>  	for (err_source = 0; !(status & (1 << err_source));
> err_source++)
>  									;
> +
> +	base = ((l3->rt) + (*(omap3_l3_bases[int_type] +
> err_source)));
> +
>  	error = omap3_l3_readll(base, L3_ERROR_LOG);
>
>  	if (error) {
> --
> 1.7.1

Re: [PATCH] OMAP3: l3: fix for "irq 10: nobody cared" message

[Sergei Shtylyov]

Hello.

On 28-03-2011 5:49, Ramirez Luna, Omar wrote:

>>> If an error occurs in the L3 on any other initiator than MPU,
>>> the interrupt goes unhandled given that the 'base' register
>>> was calculated with the initialized err_base value (which
>>> coincidentally points to MPU) and not with the actual source
>>> of the error.

>>> Signed-off-by: Omar Ramirez Luna<omar.ramirez@ti.com>
>>> ---
>>>   arch/arm/mach-omap2/omap_l3_smx.c |    5 +++--
>>>   1 files changed, 3 insertions(+), 2 deletions(-)

>>> diff --git a/arch/arm/mach-omap2/omap_l3_smx.c
>>> b/arch/arm/mach-omap2/omap_l3_smx.c
>>> index 5f2da75..da917c2 100644
>>> --- a/arch/arm/mach-omap2/omap_l3_smx.c
>>> +++ b/arch/arm/mach-omap2/omap_l3_smx.c
>>> @@ -196,11 +196,12 @@ static irqreturn_t omap3_l3_app_irq(int irq, void
>>> *_l3)
>>>                 /* No timeout error for debug sources */
>>>         }
>>>
>>> -       base = ((l3->rt) + (*(omap3_l3_bases[int_type] + err_source)));
>>> -
>>>         /* identify the error source */
>>>         for (err_source = 0; !(status&    (1<<    err_source)); err_source++)
>>>                                                                         ;
>>> +
>>> +       base = ((l3->rt) + (*(omap3_l3_bases[int_type] + err_source)));
>>> +

>>    What's the point of having () around rvalue? You could drop them, while at
>> it...

> You're right, will do.

    The same goes about 'l3->rt' and '*(omap3_l3_bases[int_type] + err_source)'...

> Regards,

> Omar

WBR, Sergei

Re: [PATCH] OMAP3: l3: fix for "irq 10: nobody cared" message

[Ramirez Luna, Omar]

Hi,

On Mon, Mar 28, 2011 at 12:38 AM, Santosh Shilimkar
<santosh.shilimkar@ti.com> wrote:
>> If an error occurs in the L3 on any other initiator than MPU,
>> the interrupt goes unhandled given that the 'base' register
>> was calculated with the initialized err_base value (which
>> coincidentally points to MPU) and not with the actual source
>> of the error.
>>
>> Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>
>
> Patch looks good. Did you observe this with DSP initiator??

Yes, when loading a base image for the DSP, I got an: In-band Error
Error seen by IVA_SS  at address 0; after this fix.

I was planning to remove the duplicated "Error" print too.

> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>

Thanks, I'll add it in my next version when I make the changes
affecting only these lines.

Regards,

Omar