RE: DSP MMU Fault

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Hi Hari,

How can I map the address? At what part do I specify these mappings;
bridge installation, at DSP side program (with the tci file etc.)? By the
way just before that in the program I do a malloc(32) to another short
pointer but |it doesn't return any errors?

Please forgive me if this is a trivial question but I'm just learning the
DSP programming. Thanks a lot.

Best regards,
Can


> Hi Can,
>
>> Do you have any ideas why this might be happening and how to fix it?
>> Thanks a lot.
>
> Most probably you might not have mapped the address 0x230674a0.
>
>
> Thank you,
> Best regards,
> Hari
>
>> -----Original Message-----
>> From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap-
>> owner@xxxxxxxxxxxxxxx] On Behalf Of Can Bal
>> Sent: Thursday, June 04, 2009 6:54 AM
>> To: linux-omap@xxxxxxxxxxxxxxx
>> Subject: DSP MMU Fault
>>
>> Hi everyone,
>>
>> I'm implementing a code on DSP but at the time I do a memory allocation
>> at
>> the DSP side as:
>>
>> short *a;
>> a = malloc(192); // (short*)malloc(192) does not work either
>>
>> But at this line I get the following error and DSP fails afterwards.
>> Then
>> I need to reboot until I can run the application again.
>>
>> <6>***** DSPMMU FAULT ***** IRQStatus 0x2
>> ***** DSPMMU FAULT ***** IRQStatus 0x2
>> <6>***** DSPMMU FAULT ***** faultAddr 0x230674a0
>> ***** DSPMMU FAULT ***** faultAddr 0x230674a0
>> <6>WMD_DEH_Notify: ********** DEVICE EXCEPTION **********
>> WMD_DEH_Notify: ********** DEVICE EXCEPTION **********
>> <6>WMD_DEH_Notify: DSP_MMUFAULT,errInfo = 0x0
>> WMD_DEH_Notify: DSP_MMUFAULT,errInfo = 0x0
>> <6>WMD_DEH_Notify: DSP_MMUFAULT, High Address = 0x2306
>> WMD_DEH_Notify: DSP_MMUFAULT, High Address = 0x2306
>> <6>WMD_DEH_Notify: DSP_MMUFAULT, Low Address = 0x74a0
>> WMD_DEH_Notify: DSP_MMUFAULT, Low Address = 0x74a0
>> <6>WMD_DEH_Notify: DSP_MMUFAULT, fault address = 0x230674a0
>> WMD_DEH_Notify: DSP_MMUFAULT, fault address = 0x230674a0
>>
>> Do you have any ideas why this might be happening and how to fix it?
>> Thanks a lot.
>>
>> Can
>>
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