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It's Still Going To Be Tough Getting The OpenChrome VIA KMS Driver In The Linux Kernel

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  • #21
    Originally posted by the_scx View Post
    As far as I know, Chrome 640/645 (C-640/645) from the VX11 chipset (release date: August 2012) had support for DX11. And the latest GPU model is Chrome 860 (C-860) from the ZX-D SoC, released in December 2017.

    ...

    Unfortunately, none of them is supported by the OpenChrome driver. However, Linux drivers exist ("via_chrome9_dri.so"/"via_drv.so", "s3g_dri.so"/"s3g_drv.so").
    That was kinda my point. OpenChrome —as is— only supports ancient hardware that only a few people would ever consider using these days, and only because they already had it and had no option to use something newer. There's no VX11 support and no 3D support in anything newer than the Unichrome Pro II (12yo). It's a driver that hasn't kept up with hardware, a driver that seems woefully unsupported by its hardware manufacturer (who insist on binary drivers, one assumes to mask their development techniques, IP pilfering, etc).

    I've nothing against people maintaining this driver, I'm sure it's useful to somebody, but trying to get this included upstream seems like a waste of upstream's time.

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    • #22
      Originally posted by libv View Post
      Those later chipsets are still too expensive for me to waste money on.
      I fully understand you. If I had to choose the graphics for my main computer right now, I would choose the Intel iGPU (and maybe NVIDIA dGPU) without any hesitation.

      Originally posted by libv View Post
      Do you have a handle on where to get any Zhaoxin hw, if at all?
      I am afraid that this hardware is currently unavailable outside of China. However, they are considering entering the consumer market in the future.
      http://dy.163.com/v2/article/detail/...J0511A3C8.html

      There are some rumors on the Anandtech forum, but I'm not sure if they are reliable.
      https://forums.anandtech.com/threads...#post-39436241
      https://forums.anandtech.com/threads...#post-39437293

      Originally posted by libv View Post
      *sigh* Those are pretty much just old-school BIOS vendors but chinese versions, right? They could've gone for coreboot, as coreboot is aligned even better with the chinese communist party goals. It's a sure sign of copying, not improving, and therefore bad execution again.
      This is actually UEFI BIOS.
      http://www.byosoft.com.cn/products/index.jhtml
      http://www.byosoft.com.cn/u/cms/www/...091544dnd4.jpg

      Originally posted by libv View Post
      Hrm, that's the first time i hear of those. I think i would trust those even less than existing hash/encryption algorithms.
      The main reason for implementing this was that China does not trust the western algorithms.
      http://dy.163.com/v2/article/detail/...J0511A3C8.html
      "ZX-C+ quad-core processor also supports SM3 and SM4 high-speed national secret algorithm instructions. The high-speed national secret algorithm command is a set of algorithm commands independently developed by Siucore, which can not only greatly increase the speed of operation of the SM3 and SM4 national secret algorithms, but also make the development and deployment and promotion of cryptography-related applications more convenient. This is not available on other X86 processors on the market." (Google Translate)
      "For the average consumer, they do not use SM3, SM4 national secret algorithm, the algorithm is mainly embedded in commercial, telecommunications, financial applications, and when these applications establish communication channels, enable the two encryption algorithms. In computer applications, the secret algorithm is to mainly protect those files that are subject to secrecy laws, involving confidential documents, party and government agencies, and file transfers from the e-government network. Similar encryption is used. The software will encrypt itself when it is transmitted, and then decrypt it at the other end. However, if the processor does not support the SM3, SM4 algorithm instruction set, then they will use software acceleration to encrypt and decrypt, and the speed will be very slow. Since the SMIC core ZX-C+ processor supports the SM3 and SM4 high-speed national secret algorithm commands in hardware design, its encryption and decryption speed will be significantly faster than that of ordinary X86 processors, thereby effectively improving office efficiency." (Google Translate)
      "According to SMIC's live demonstration during the Capital Cyber ​​Security Day series, the speed of the SM3 calculation is above 3200Mb/s when using the high speed country secret algorithm command, and the SM4's calculation speed is also near the high level of 2400Mb/s. In terms of performance, Siu-Hsin said that this achievement is more than two times that of other international mainstream general-purpose processor platforms, which is also the biggest advantage of this domestic processor." (Google Translate)
      "More importantly, SMIC processors support the secret algorithm instruction sets that are not available in foreign processors and can easily and quickly encrypt or decrypt confidential files, and have security capabilities that cannot be replaced by any foreign processor." (Google Translate)

      Of course, it's not something you have to use. PadLock also supports AES, SHA*, etc. Actually, VIA processors had hardware support for encryption, hash algorithms, RNG, etc. long time before Intel introduced the AES-NI instructions.
      The problem was the software. It's quite a similar situation as with video acceleration in the Linux world, where at first only the special variant of MPlayer was supported ("S3 Graphics MPlayer"). Fortunately, the situation has significantly improved over the last years.

      Originally posted by libv View Post
      I read: trying to make it competitive again. All laudable though.
      It's obvious that they can not yet compete with Intel and AMD in terms of performance or even the performance-price ratio. However, I think that this may change in the next 10 years.

      Originally posted by libv View Post
      Now this is where it will all seriously fall down.
      I see it a bit differently. Zhaoxin can develop processors without looking at costs and profitability. National security and technological independence have the highest priority here. And if they (or VIA/Centaur) decide to offer products abroad (in EU/US), they do not have to limit themselves to their own factories. They can use the TSMC, for example.

      Currently, China strongly invest in its own semiconductor industry. They probably care not only for technological independence, but also for being competitive in the future. That's why I believe that something can come of this.

      https://www.extremetech.com/computin...chinese-market
      "AMD has formed a new joint venture with THATIC (Tianjin Haiguang Advanced Technology Investment Co., Ltd). to build SoCs for the Chinese server market. AMD expects the total value of the deal to be $293 million, with $52 million in revenue recognized over the course of 2016."
      "According to AMD, it is licensing technology to its Chinese partner, not market-ready products — but the company noted that its core expertise is in x86 processors with some additional valuable IP in server fabrics (likely acquired via SeaMicro). Asked point-blank whether AMD had licensed x86 IP to the THATIC joint venture, CEO Lisa Su confirmed that it had."

      https://www.theregister.co.uk/2017/0...rivate_equity/
      "British chip designer Imagination Technologies Group has sold itself to China-aligned private equity outfit Canyon Bridge."

      https://defence.pk/pdf/threads/china...-china.537212/
      "For the computer SERVER market, Advanced Micro Devices (AMD) had licensed its next-generation x86 architecture Zen-based server chips to China for $293 million."

      https://www.golem.de/news/halbleiter...05-134314.html
      "China pumps $ 47 billion into its own chip industry" (Google Translate)
      "The fastest publicly listed supercomputer in the world, the Chinese Sunway Taihu Light, uses Sunway SW26010 CPUs from Shanghai's National High Performance Integrated Circuit Design Center. The currently second fastest supercomputer, also from China, is currently being upgraded to the Tianhe 2A and then using its own Matrix 2000 GPDSPs." (Google Translate)
      "When it comes to (LP) DDR4 memory and NAND Flash, this division will also benefit from the $ 47 billion: companies such as Xi'an UniIC Semiconductors or the YMTC subsidiary (Yangtze Memory Technologies Corporation) of the state-funded Tsinghua Unigroup together invest more than $ 100 billion in development and manufacturing." (Google Translate)

      https://www.reddit.com/r/AMD_Stock/c...hina_uses_amd/
      "New «Ruyi» gaming console from China uses AMD customized architecture chip"

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