Thread (11 messages) 11 messages, 3 authors, 2012-01-29

RE: Problem in getting shared memory access on P1022RDK

From: Arshad, Farrukh <hidden>
Date: 2012-01-04 06:49:51

How can I verify if the memory mapped is coherent on both cores. My memory =
partitioning is given below

Core		Base Address		Size
Core 0		0x0000,0000		0x1000,0000	--> CONFIG_PHYSICAL_START =3D bootm_low =
=3D Base Address
Core 1		0x1000,0000		0x0C00,0000	--> CONFIG_PHYSICAL_START =3D bootm_low =
=3D Base Address
Shared Mem	0x1C00,0000		0x0400,0000

Regards,
Farrukh Arshad

-----Original Message-----
From: Scott Wood [mailto:scottwood@freescale.com]=20
Sent: Tuesday, January 03, 2012 10:10 PM
To: Arshad, Farrukh
Cc: linuxppc-dev@lists.ozlabs.org
Subject: Re: Problem in getting shared memory access on P1022RDK

On 01/03/2012 03:42 AM, Arshad, Farrukh wrote:
Adding more to it,
=20
=20
=20
When I write from Core 1 on the shared memory region it is visible at=20
Core 0 and it can read what I have written from Core 1 but when I=20
write from Core 0 on this shared memory it is not visible on Core 1.
Is the memory mapped coherent on both cores?

-Scott
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