Qualcomm device使用ION memory manager取代PMEM

今天写好device,成功编译出CM,接下来肯定是调戏啦(你什么都没看到)~

BUG肯定也是一堆堆的!一开机,果然一堆error~可是尼玛,大蛋一放假就不见人了!!!

我自己折腾几个小时容易么我,我谷歌了几个小时容易么我ヽ(｀д´)ﾉ

06-09 17:15:48.570: D/memalloc(138): init_pmem_area: Initializing pmem area
06-09 17:15:48.570: D/memalloc(138): init_pmem_area_locked: Opening master pmem FD
06-09 17:15:48.570: E/memalloc(138): /dev/pmem: Failed to open pmem device: No such file or directory
06-09 17:15:48.570: E/memalloc(138): /dev/pmem: failed to initialize pmem area
06-09 17:15:48.570: E/gralloc(138): gralloc failed err=No such file or directory
06-09 17:15:48.570: W/GraphicBufferAllocator(138): WOW! gralloc alloc failed, waiting for pending frees!
06-09 17:15:48.570: E/gralloc(138): gralloc failed err=No such file or directory
06-09 17:15:48.570: W/GraphicBufferAllocator(138): alloc(480, 800, 2, 00000b03, ...) failed -2 (No such file or directory)
06-09 17:15:48.570: E/SurfaceFlinger(138): GraphicBufferAlloc::createGraphicBuffer(w=480, h=800) failed (No such file or directory), handle=0x0
06-09 17:15:48.570: E/BufferQueue(138): [BootAnimation] dequeueBuffer: SurfaceComposer::createGraphicBuffer failed
06-09 17:15:48.570: W/Adreno200-EGLSUB(412): <DequeueBuffer:420>: dequeue native buffer fail: No such file or directory
06-09 17:15:48.580: W/Adreno200-EGL(412): <qeglDrvAPI_eglMakeCurrent:2855>: EGL_BAD_ALLOC
06-09 17:15:48.580: E/libEGL(412): eglMakeCurrent:593 error 3003 (EGL_BAD_ALLOC)
06-09 17:15:48.580: E/SurfaceFlinger(138): GL error 0x0505
06-09 17:15:48.580: W/Adreno200-EGLSUB(138): <GetBackBuffer:2181>: handle base address is NULL
06-09 17:15:48.580: W/Adreno200-ES20(138): <gl2_surface_swap:43>: GL_OUT_OF_MEMORY
06-09 17:15:48.580: W/Adreno200-EGL(138): <qeglDrvAPI_eglSwapBuffers:3482>: EGL_BAD_ALLOC

上面就是错误信息啦,一眼看过去就看出了pmem驱动无法打开

What,为神马打不开啊???因为文件不存在啊,魂淡!

然后我就把kernel的config给提取出来看了下

$ adb pull /proc/config.gz

245 KB/s (20151 bytes in 0.080s)

$ gunzip -c config.gz |grep PMEM
CONFIG_ANDROID_PMEM=y

次奥,内核都开启了PMEM为神马还是不行啊!!!(つД`)

好吧,接着我就去看dmesg,看看到底是神马回事...

<6>[ 2.445319] loop: module loaded
<1>[ 2.447678] pmem: pmem_setup: unable to register pmem driver(pmem) - zero size passed in!
<4>[ 2.455961] android_pmem: probe of android_pmem.0 failed with error -1
<1>[ 2.462321] pmem: pmem_setup: unable to register pmem driver(pmem_adsp) - zero size passed in!
<4>[ 2.471003] android_pmem: probe of android_pmem.1 failed with error -1
<1>[ 2.477379] pmem: pmem_setup: unable to register pmem driver(pmem_audio) - zero size passed in!
<4>[ 2.486199] android_pmem: probe of android_pmem.2 failed with error -1

好吧,pmem都起不来了,怪不得找不到驱动...

个人感觉那货需要从内核源码搞了,但是没有源码啊,肿么破???

那俺就只好用ION取代PMEM了,pougai!!!!

打开device/{manufacturer}/{device}/BoardConfig.mk,添加下面的代码

# Uses ION memory manager,Renounce the use of PMEM
TARGET_USES_ION := true

然后重新编译,你也可以用mmm单独编译模块~

刷进手机,重启,看log!!欧耶,这个BUG没有了,但是剩下的BUG还有一堆堆...