trouble with the umplock branch

[gripped]

Hi

I know this is all experimental, and I have your r4p0 branch working on my Odroid U3 with Arch Linux.

But I noticed in the commit notes of your umplock branch you were getting better performance so I've been giving that a try.
I have compiled the r4p0-umplock armsoc branch along with your endless-r4p0-umplock kernel.

The Arch config is different in many places but I have copied over what seems relevant ?

CONFIG_MALI400=y
# CONFIG_MALI450 is not set
CONFIG_MALI400_DEBUG=y
# CONFIG_MALI400_PROFILING is not set
CONFIG_MALI400_UMP=y
# CONFIG_MALI400_POWER_PERFORMANCE_POLICY is not set
# CONFIG_MALI_DMA_BUF_MAP_ON_ATTACH is not set
# CONFIG_MALI_SHARED_INTERRUPTS is not set
# CONFIG_MALI_PMU_PARALLEL_POWER_UP is not set
CONFIG_UMP=y
CONFIG_UMP_MEM_SIZE=512
# CONFIG_UMP_DEBUG is not set
CONFIG_UMP_USING_OS_MEMORY=y

#
# Graphics support
#
CONFIG_DRM=y
CONFIG_DRM_USB=m
CONFIG_DRM_KMS_HELPER=y
CONFIG_DRM_LOAD_EDID_FIRMWARE=y

#
# I2C encoder or helper chips
#
# CONFIG_DRM_I2C_CH7006 is not set
# CONFIG_DRM_I2C_SIL164 is not set
CONFIG_DRM_MALI=y
CONFIG_DRM_EXYNOS=y

When I start anything GLES2 I get an error "Failed to open GEM name=3" with the number incrementing by 1 at each attempt.

odroid@odroidu3 ~ $ glmark2-es2 
Failed to open GEM name=3
Error: eglMakeCurrent failed with error: 0x3003
Error: CanvasX11EGL: Invalid EGL state
Error: main: Could not initialize canvas
odroid@odroidu3 ~ :( $ es2_info 
Failed to open GEM name=4
Error: eglMakeCurrent() failed
odroid@odroidu3 ~ :( $ es2gears_x11 
EGL_VERSION = 1.4 Linux-r4p0-00rel0
Failed to open GEM name=5
EGLUT: failed to make window current

I noticed with this commit
c6c0724
you said libmali CAN be built with umplock functionality. I'm wondering if the libs I've got (from an image on the odroid forum) have been ?

I've tried to work out what's up but have come to the end of my limited ability and was hoping you might have some idea

The full kernel config I used is here
https://gist.github.com/gripped/f563101782ec06eceec7

And while I remember I have applied your patches to xorg-server