Mali Drivers

boredland

Hi there,

for a few days now the userspace drivers (r5p0-06rel0) are available. From what I understand we don't have the kernel drivers yet integrated into the kernel.

Therefore we'd have to recompile the kernel with the kernel drivers. Could anyone lead me into the direction how to integrate them?

Userspace drivers:

http://malideveloper.arm.com/develop-fo ... e-drivers/

Kernel drivers:

http://malideveloper.arm.com/develop-fo ... e-drivers/

And in addition: what else is needed for compiling some OpenCl-application?

Yours

Jonas

boredland

"In order to use this, you will also need to build the kernel-side driver and replace the kernel in your build.  This can be achieved by following the Firefly wiki page I mentioned earlier and starting with this Linux repository (master branch):

T-Firefly / Firefly-RK3288-kernel / Commits — Bitbucket

It has an early r4p1 kernel-side Mali GPU driver, which is not compatible with the new r5p0 user-side driver.  So you need to upgrade the kernel-side Mali driver with the source code archive from this page:

http://malideveloper.arm.com/develop-fo ... e-drivers/

You'll need to remove the main drivers files under drivers/gpu/arm/, but not drivers/gpu/arm/midgard/platform/rk which contains the RK3288 platform support files, and replace them with the files from the archive.  Some relatively small changes may be needed in the RK3288 platform files to make it work with the new r5p0 driver; sorry we haven't got a patch for that at the moment."

From http://community.arm.com/thread/7258

I'll try that in the next days.

boredland

Well. I don't get the kernel (tried it natively on the firefly directly):

"/home/firefly/firefly-rk3288-kernel/mkkrnlimg: 1: /home/firefly/firefly-rk3288-kernel/mkkrnlimg: Syntax error: "(" unexpected

make: *** [kernel.img] Error 2"

I did:

"git clone https://bitbucket.org/T-Firefly/firefly ... kernel.git"

"make firefly-rk3288-linux_defconfig"

"make -j8 firefly-rk3288.img"

boredland

I successfully got the Kernel to compile with the new Kernel drivers, propably. Sady I don't understand where and how I've got to change the parameter file. I think that, somehow, is wrong in the default version, since trying to flash brings me up:

"$ ./upgrade_tool di -b ../fireflyp5/firefly-rk3288-kernel/boot.img
parameter is invalid,please check!"