Hi,Now I need to use a 3MP image sensor to do jpegenc process.But my program hang at the memory allocation in linux kernel: 1.I find the linux kernel will allocate and reserved VPFE_DEFNUM_FBUFS x PFE_MT9T001_MAX_FBUF_SIZE DMA memory in the VPFE initialization code.In ther driver,VPFE_DEFNUM_FBUFS=3 and VPFE_MT9T001_MAX_FBUF_SIZE =1920x1080x2,I want to know How much DMA memory in the dm355 system and is the allocated memory for ccdc?If I want to use the ipipe to process the 3MP resolution,do I need to change the VPFE_MT9T001_MAX_FBUF_SIZE to be 3Mx2? 2.In the ipipe initialization code, I need to allocate 2 buffers whose size will be 3Mx2,and my program hang at this point,the error message is "not enough memory",so I dive into the ipipe driver code,and I find that the ipipe buffers also need to be allocated with the flag GFP_DMA.My linux kernel has 80M memory,so I think the reason is the kernel DMA region doesn't have enough memory,is it right?How do I to solve this prolbem? Thank you!Any help or tips will be appreciated!
2008-09-08 Pavel Han Oplinx Co.,Ltd Address:Hanggang Fuchun Business Mansion 2116# Futian, Shenzhen 518041,PRC Tel: (086)0755-88359865 Website:www.oplinx.com.cn E-mail: [EMAIL PROTECTED]
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