SGX driver and kernel 4.4

[terry...@yahoo.com]

So, I've been away from the sgx stuff for awhile.  I had it fully working on a Angstrom 3.x kernel quite a while ago.  Now I'm on a beagle black with Debian and kernel 4.4.80.

I'm a bit confused, as I working through the old Graphics_SDK_5_01_01_02 stuff, trying to get it compiled with all kinds of weird errors.

Then I saw these drivers omap5-sgx-ddk-linux, which seem to be for the newer kernels?  So I switched to this newer package and I was able to get this driver "pvrsrvkm" compiled and  loaded with this message on my beagle:

Sep 11 17:00:59 beaglebone kernel: [  154.509813] [drm] Initialized pvr 1.14.3699939 20110701 on minor 1

Sep 11 17:00:59 beaglebone kernel: [  154.626674] PVR_K: UM DDK-(3699939) and KM DDK-(3699939) match. [ OK ]

So the driver is talking to the sgx hardware, good!  But if I try any of the sgx demo stuff I get this:

root@beaglebone:/usr/local/bin# ./sgx_init_test

----------------------- Start -----------------------

Try calling PVRSRVConnect with an invalid argument:

PVR:(Error): PVRSRVConnect: Invalid connection. [0, ]

PVR:(Error): PVRSRVConnect: Unable to open connection. [0, ]

 OK

Call PVRSRVConnect with a valid argument:

 OK

Try calling PVRSRVEnumerateDevices with invalid puiNumDevices:

PVR:(Error): PVRSRVEnumerateDevices: Invalid params [0, ]

 OK

Get number of devices from PVRSRVEnumerateDevices:

 OK

.... Reported 1 devices

.... Device Number  | Device Type

            0000    | PVRSRV_DEVICE_ID_SGX

Attempt to acquire device 0:

 OK

Getting SGX Client info

 OK

.... ui32ProcessID:992

Display Class API: enumerate devices

./sgx_init_test: symbol lookup error: ./sgx_init_test: undefined symbol: PVRSRVEnumerateDeviceClass

All the sgx demos fail with:  undefined symbol: PVRSRVEnumerateDeviceClass.

Why is this?  Is the omap5-sgx-ddk-linux the correct driver to be using for my 4.4.80 kernel?  

Thanks!