AMD News Archives
AMD Wowed Linux Users In 2020 With Their Fantastic Zen 3 CPUs, Timely New Open-Source GPU Support

AMD this year not only delivered the very powerful Ryzen 5000 "Zen 3" desktop processors and initial Radeon RX 6000 "Big Navi" graphics cards but for exciting Linux users was the timely open-source support for the new GPUs well in advance (and also already preparing for some 2021 graphics products) as well as more timely support around Zen 3 thermal support and other additions. AMD's open-source timing is still improving although not yet optimal but all in it was a hell of a year for AMD Linux users.

29 December 2020 - 2020 AMD Highlights - 28 Comments
Linux 5.11 Is Looking Like A Wild And Bumpy Ride On AMD CPUs So Far

A few days ago I noted nice AMD EPYC performance improvements with PostgreSQL when running on Linux 5.11 compared to prior kernels. I've confirmed that for even more AMD EPYC servers now that the PostgreSQL uplift is there, but other workloads are unfortunately regressing for both Ryzen and EPYC. Here's the start of an exciting Christmas benchmarking adventure looking at this change with Linux 5.11...

24 December 2020 - PostgreSQL - 5 Comments
AMD SB-TSI Sensor Driver Set To Appear With Linux 5.11

There are a lot of changes coming with Linux 5.11 and on the AMD side includes the likes of VanGogh and Dimgrey Cavefish graphics support, AMD EPYC Zen 3 support in the AMD_Energy driver, AMD RAPL Zen1/Zen2/Zen3 PowerCap support, an AMD SoC PMC driver, and the AMD Sensor Fusion Hub driver for Ryzen laptops is finally being mainlined... Another new addition was queued up this weekend by way of hwmon-next and that's the AMD SB-TSI sensor driver.

13 December 2020 - AMD SB-TSI - 2 Comments
Mesa 21.0 Begins Landing Optimizations For AMD Smart Access Memory

While AMD Smart Access Memory has already been supported under Linux for some time with its resizable BAR functionality, only now with all the excitement around the feature being promoted with the Ryzen 5000 series and Radeon RX 6000 series hardware is the Mesa driver code beginning to see some optimizations for it.

9 December 2020 - Mesa 21.0 - 10 Comments
The AMD Ryzen 5000 Series Continue To Impress On Linux

It's been just over one month since AMD launched the Ryzen 5000 series as the first processors part of the Zen 3 family. The Linux performance continues to be terrific with the Ryzen 5600X / 5800X / 5900X / 5950X parts in our continued benchmarking.

9 December 2020 - Ryzen 5000 Series - 13 Comments
A Quick Look At The Spectre Mitigation State For AMD Zen 3 On Windows 10

Earlier this week I looked at the Spectre mitigation performance impact on AMD Zen+ / Zen 2 / Zen 3 processors given the recent launch of the Ryzen 5000 series and those newest CPUs still requiring some mitigation handling. Questions were raised about the Spectre mitigation handling on Windows, so I ran some quick tests there as I happened to have a Windows 10 install on the Ryzen 9 5900X test box at the moment for some unrelated Windows vs. Linux gaming.

5 December 2020 - Spectre + STIBP - 4 Comments
AMD Is Making Progress On Open-Source Firmware - Initially With OpenBMC

While we are still waiting to see what AMD might do for returning to open-source AGESA or better supporting Coreboot and the like, they are making some inroads with open-source firmware support -- beyond the context of Chromebooks where they continue to engage due to Google's engineering requirements. AMD is working to "align with the industry direction of open-source firmware stacks" with their initial focus being on open-source OpenBMC firmware support for their server platforms.

3 December 2020 - Open-Source AMD OpenBMC - 22 Comments
Many More AMD Ryzen 5000 Series "Zen 3" Linux Benchmarks

Over the past week we have published our Linux performance reviews of the Ryzen 5 5600X, Ryzen 7 5800X, and Ryzen 9 5900X + 5950X "Zen 3" processors. For as much data that has been available in those reviews, here is even more data accumulating thanks to the open-source Phoronix Test Suite and Thousands of data points are building up for these very exciting AMD Zen 3 desktop processors.

13 November 2020 - Zen 3 Benchmarks - 24 Comments
AMD + IBM Team Up To Tackle Confidential Computing

AMD and IBM are this morning announcing a multi-year, joint development agreement focused on "building upon open-source software, open standards, and open system architectures to drive Confidential Computing in the cloud and support a broad range of accelerators across high-performance computing (HPC), and enterprise critical capabilities such as virtualization and encryption."

11 November 2020 - Confidential Computing - 22 Comments
AMD Renoir Running Smooth On Linux 5.10

After last week sharing some Intel Tiger Lake benchmarks on Linux 5.10, the tables have turned and here are some similar tests when running Linux 5.10 on an AMD Ryzen 4000 series "Renoir" notebook.

10 November 2020 - AMD Renoir + Linux 5.10 - 8 Comments
"Project X" - Pure Open-Source Coreboot Support On AMD Zen

Not only are AMD Ryzen 5000 series completely dominating in performance but they could soon see open-source Coreboot support as an alternative to the proprietary firmware/BIOS. Project X is an interesting effort around blob-free Coreboot/Oreboot support on AMD Zen.

5 November 2020 - AMD Zen + Open-Source Firmware - 32 Comments
RadeonSI Gallium3D Adds Support for EGL Protected Surfaces Using AMDGPU TMZ

Landing in Mesa 20.3 during this final week of feature development is support in RadeonSI Gallium3D for EGL_EXT_protected_surface. This long-standing EGL extension allows surfaces/windows to beset as protected and in which case the contents are only accessible to secure accesses. Outside/insecure accesses to the window (surface) contents are blocked.

2 November 2020 - Encrypted vRAM - 26 Comments
LLVM Lands Very Basic Support For AMD Zen 3 CPUs

While AMD has landed Znver3 support in GNU Binutils, the company hasn't yet sent out patches for either the GCC or LLVM/Clang compilers in setting up the Zen 3 target with its new instructions or optimized scheduling model / cost table. But a basic implementation has been merged to LLVM for allowing "-march=znver3" based on the limited public details thus far.

25 October 2020 - -march=znver3 - 7 Comments
Intel Core i7 1165G7 Tiger Lake vs. AMD Ryzen 7 PRO 4750U Linux Performance

For the Intel Tiger Lake Linux benchmarking thus far with the Core i7 1165G7 on the Dell XPS 13 9310 it's primarily been compared against the Ryzen 5 4500U and Ryzen 7 4700U on the AMD side since those are the only Renoir units within my possession. But a Phoronix reader recently provided me with remote access to his Lenovo ThinkPad X13 with Ryzen 7 PRO 4750U (8 cores / 16 threads) for seeing how the Tiger Lake performance compares against that higher-end SKU.

24 October 2020 - 8 Cores / 16 Threads Of Zen 2 - 17 Comments
Linux Gets Fix For AMD Zen 3 CPU Frequency Handling Stemming From 8 Year Old Workaround

Since 2012 there has been a quirk in the Linux kernel to disable/override using ACPI _PSD data on all AMD processors as a workaround in turn for Windows-specific behavior that clashes with the semantics of the Linux ACPI CPUFreq driver for CPU frequency scaling. With AMD Zen 3 this quirk is no longer needed to behave correctly and thus Linux 5.10 is going to drop this eight year old quirk on Zen 3 and newer.

24 October 2020 - ACPI _PSD Mess - 8 Comments

1198 AMD news articles published on Phoronix.