i.MX ProcessorsのトピックRe: g2d_alloc: alloc memory fail with size 6220800

g2d_alloc: alloc memory fail with size 6220800

yongtang — Mon, 30 Nov 2015 06:21:01 GMT

Hi, Freescale

I use g2d for image scale,but failed on alloc g2d memory(size = 6220800):

g2d_open(&mhG2d);

nSrcBufSize = 6220800; //1080p yuv444

g2d_alloc(nSrcBufSize, 0);

error log:

g2d_alloc: alloc memory fail with size 6220800!

Alloc 4608000 bytes success(1920x1200, yuv422).

How can i fixed this issue? How much hard memory for G2D can i alloc?

Bio_TICFSL — Wed, 02 Dec 2015 16:51:28 GMT

Hi yong

g2d_alloc has the 32MB limit. Please check document provided at: Re: GPU3D Driver Support

Section 9 GPU memory, for instructions to change this reserved memory space.

Regards

yongtang — Thu, 17 Dec 2015 02:05:49 GMT

Hi, Bio_TICFSL

Thanks for your reply.

I have some questions related the gpu memory:

1. How can i observed the free memory size not be allocated?

2. If g2d_alloc failed,does there have some workaround for this?

Regards