On 11 March 2015 at 08:32, Scott Bambrough <scott.bambrough@linaro.org> wrote:

ANDROID
---------------------------------
HiSilicon has provided the following files to Linaro for Android:

android/32bit: gralloc.hi6210sft.so, libGLES_mali.so, libion.so
android/64bit: gralloc.hi6210sft.so, libGLES_mali.so, libion.so

The library "libion.so" is needed for Android L. HiSilicon has some vendor specific interfaces in "gralloc.hi6210sft.so", and the provided implementation of "libion.so" will use those interfaces.

/media/scottb/linaro/hikey/android/device/linaro/hikey/device.mk
Need to add a appropriate PRODUCT_COPY_FILES macro to this makefile.

#Copy Graphics binaries
PRODUCT_COPY_FILES += $(call add-to-product-copy-files-if-exists,\
$(LOCAL_PATH)/mali/64bit/libGLES_mali.so:system/lib64/egl/libGLES_mali.so\
$(LOCAL_PATH)/mali/64bit/gralloc.hi6210sft.so:system/lib64/gralloc.hi6210sft.so\
$(LOCAL_PATH)/mali/64bit/libion.so:system/lib64/libion.so \
$(LOCAL_PATH)/mali/32bit/libGLES_mali.so:system/lib/egl/libGLES_mali.so \
$(LOCAL_PATH)/mali/32bit/gralloc.hi6210sft.so:system/lib/gralloc.hi6210sft.so \
$(LOCAL_PATH)/mali/32bit/libion.so:system/lib/libion.so)

I suspect a set of symlinks like those described for X below are required in /system/lib64 and /system/lib.  Not entirely sure how to get these setup.

To do:

1. Obtain MALI kernel GPU driver from Guillaume Tucker.

I see a hikey-mali branch with the Mali driver. Will the same driver work with Android without any changes ? 

1. Obtain kernel ION driver from HiSilicon

 What is the status with this one ?

LINUX/X11
---------------------------------

HiSilicon has provided the following files to Linaro for Linux/X11:

x11/32bit: none
x11/64bit: libMali.so (untested)

To install the 64bit library (libMali.so)

1. Create the file /etc/ld.so.conf.d/arm64-linux-gnu_EGL.conf.  This file should contain the single line: /usr/lib/arm64-linux-gnu/mali-egl
2. Install libMali.so to /usr/lib/arm64-linux-gnu/mali-egl, root:root, 644
3. Create the following symlinks in /usr/lib/arm64-linux-gnu/mali-egl
• libEGL.so -> libEGL.so.1.0.0
• libEGL.so.1 -> libEGL.so.1.4
• libEGL.so.1.4 -> libMali.so
• libGLESv1_CM.so -> libGLESv1_CM.so.1
• libGLESv1_CM.so.1 -> libGLESv1_CM.so.1.1.0
• libGLESv1_CM.so.1.1.0 -> libMali.so
• libGLESv2.so -> libGLESv2.so.2.0.0
• libGLESv2.so.2 -> libGLESv2.so.2.0.0
• libGLESv2.so.2.0.0 -> libMali.so
4. Install an xf86 driver for X.org that will work with the frame buffer.
   

We currently cannot support multiarch for ARM 32-bit code, as we will be able to in Android.  For that we need  a 32bit driver for Linux/X11 from HiSilicon.

To install a 32bit library (libMali.so)

1. Create the file /etc/ld.so.conf.d/arm-linux-gnu_EGL.conf.  This file should contain the single line: /usr/lib/arm-linux-gnu/mali-egl
2. Install libMali.so to /usr/lib/arm-linux-gnu/mali-egl, root:root, 644
3. Create the following symlinks in /usr/lib/arm64-linux-gnu/mali-egl
• libEGL.so -> libEGL.so.1.0.0
• libEGL.so.1 -> libEGL.so.1.4
• libEGL.so.1.4 -> libMali.so
• libGLESv1_CM.so -> libGLESv1_CM.so.1
• libGLESv1_CM.so.1 -> libGLESv1_CM.so.1.1.0
• libGLESv1_CM.so.1.1.0 -> libMali.so
• libGLESv2.so -> libGLESv2.so.2.0.0
• libGLESv2.so.2 -> libGLESv2.so.2.0.0
• libGLESv2.so.2.0.0 -> libMali.so

To do:

1. Obtain MALI kernel GPU driver from Guillaume Tucker.
2. Obtain 32bit libMali.so for Linux/X11 from HiSilicon.
   
3. DRM kernel display driver.
• To implement and test X11 needed ioctl interfaces.
• To integrate some mali private ioctl interfaces, such as dma_buf fb.
4. DRM userspace work.  Need a DRM enabled xf86 driver for X.org. 
• http://cgit.freedesktop.org/xorg/driver/xf86-video-armsoc/
• Expect some related work like that done by ARM as described here: http://lists.x.org/archives/xorg-devel/2012-May/031250.html
• There also might be some changes needed in libdrm to add support for the HiKey platform.
5. Fathi to package the Mali libs and create the symlinks required on installation.

If I have missed anything or got anything wrong, please feel free to provide additions/corrections.

Regards,

Scott

--

Scott Bambrough
Technical Director, Member Services
Linaro