Re: MPU configuration during task switch for Cortex R4
Probably not. I say probably because I don't know the details of your system. The data/instructions in the caches from the old task will still be in the cache after the re-programming of the MPU...
View ArticleRe: how BL instruction operate in arm and thumb state...?
Yes, it's the same memonic - BL. Both ARM and Thumb also have a BLX instruction, which additionally causes a state change. Useful for calling a sub-routine written in the "other" instruction set. See...
View ArticleRe: get a dram addr's corresponding way number in Cache .
The index field is the middle address bits, and tells you the set (which line within a given way). So if you know the cache size, number of ways and line length you can work it it. For a Cortex-A9...
View ArticleRe: flush L2 DCache by MVA问题
是的，使用MVA的cache 操作的单位是cache line, 例如DCIMVAC， 目前都是64B1个byte改变整个cacheline都是dirty的，flush时需要对整个cacheline操作。
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ARM DS-5 Streamline - Events-based profiling - YouTube
ARM DS-5 Streamline - Events-based profilingYouTubeLearn how to use ARM DS-5™ Streamline to find out which processes, threads, functions, and even source code lines are slowing down your Linux/Android...
View ArticleRe: flush L2 DCache by MVA问题
hi, yongfeng:感谢回复！ 还有2个问题：1. CA7的没一个cacheline，dirty bit只有一个bit位吗？2. 对于一个给定的DRAM addr，如何得到它对应的way? 比如： 一个32bit DRAM addr：我们从此地址，可以得到它占用的set index / offset in a cache line. 好像无法得出它位于哪一个way. best...
View ArticleRe: MPU configuration during task switch for Cortex R4
Hi Martin, Thanks for the reply. I am using different memory location for the DMA based operations. The stack contents are only accessed by processor. Also is it good to group the global symbols along...
View ArticleRe: Mali Graphics Debugger : libGLES_mgd.so makes crash application
Hi ybe42, Can you attach the logcat output when the interceptor library is named libGLES_mgd.so? Also can you give me a file listing of /vendor/lib/egl and /system/lib/egl? Thanks,Chris
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Re: get a dram addr's corresponding way number in Cache .
> But it seems programmer could not get way index from a 32bit dram addr, right? Correct. You can sometimes work out which set is used, but the decision of which cache way is used pseudo-random, and...
View ArticleRe: Is the ARM Mali - 450 MP video chip a dual core or quad core chip for...
See the answer in your other thread. Are the ARM MALI 450 MP and ARM MALI 450 MP4 the same thing or not? Please don't post the same question twice - it just makes tracking answers confusing. Thanks, Pete
View ArticleContent Keyword Notifications
I want ARM Connected Community to send me email notifications of new content containing keywords that I specify. Is there any way to do that?
View ArticleRe: Content Keyword Notifications
Hi Scott - Thank you for the great question. The best way to follow keywords or tags is by creating an RSS feed or a QuickLink (bookmark). See this previous discussion as it will help with setting both...
View ArticleGL_OES_EGL_image_external with GLSL 3.0 shader and GLES 3.0 context?
Hello Mali driver devs, It appears the GLSL 3.0 compiler doesn't support GL_OES_EGL_image_external extension, required by Android 3.0+ for use with SurfaceTexture. Recompilation for #version 100...
View ArticleRe: GL_OES_EGL_image_external with GLSL 3.0 shader and GLES 3.0 context?
Hi Stephane, Thanks for reporting - I'll raise with the driver team - this does indeed look like a bug. Based on your past reports I assume this is on the Nexus 10? Can you share the build number of...
View ArticleDS-5 auto updates aren't working, how can I update manually?
I would like to upgrade from 5.15.0 to 5.17.1 and I have logged into my account and enabled the auto update check. I don't get any pop ups about updating and I'd like to do so without having to...
View ArticleRe: GL_OES_EGL_image_external with GLSL 3.0 shader and GLES 3.0 context?
Hi Peter, No problem at all. Thankfully, simple workaround.The device tested on is the Galaxy Note 10.1 2014 edition, running Mali T628. No seeing an clear driver version unfortunately, but the device...
View ArticleNew Partner Rewards Program
Thank you for your contributions in 2013, we are delighted to see the increasing number of participation from our partners. In 2014, we will be hosting a Partner Rewards Program– our way of saying...
View Article合作伙伴奖励活动
各位尊敬的合作伙伴们， 非常感谢您在2013年的杰出贡献，我们也很高兴地看到参与的伙伴们逐渐增多起来了。 为此，请允许我们在2014年举办这个合作伙伴奖励活动，来回馈您对我们ARM互联社区的厚爱。 合作伙伴奖励活动细则： 在2014年6月30日之前，只要您合作伙伴空间（Partner...
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