Linux 4.15 Is Set To Sail Today With AMDGPU DC, Zen Temperature Monitoring, RISC-V

[phoronix]

Phoronix: Linux 4.15 Is Set To Sail Today With AMDGPU DC, Zen Temperature Monitoring, RISC-V

After going through nine weekly release candidates, the Linux 4.15 kernel is set to be released today as the first major stable update of 2018...

http://www.phoronix.com/scan.php?page=news_item&px=Linux-4.15-Release-Coming-Today

[czz0]

I wish there was a way to just enable the HDMI audio support but not anything else in AMDGPU DC. I still get terrible graphical performance even with 4.15-rc9 and amdgpu.dc=1 on my RX460. Did they even test it on polaris?

[Darknation]

Did you experience poor preformance prior to 4.15-rc9 or did it get worse?

[czz0]

Did you experience poor preformance prior to 4.15-rc9 or did it get worse?

Same from 4.15-rc1 to 4.15-rc9, all practically equally bad performance. I'm hoping 4.16-rc1 will show improvement.

[Marc Driftmeyer]

Did you experience poor preformance prior to 4.15-rc9 or did it get worse?

My RX 480 has no discernible degradation with it enabled. RC8 on Debian. Using Mesa 17.2.5 to keep AMDGPU PRO OpenCL for Blender working. Steady 75fps with Unigine Heaven 1920x1080 with Quality Ultra, Tessellation Normal, .

---- System ----
System: Linux 4.15.0-rc8-amd64 x86_64
CPU: AMD FX(tm)-8350 Eight-Core Processor 4018MHz MMX+ SSE SSE2 SSE3 SSSE3 SSE41 SSE42 SSE4A SSE5 AVX HTT x8
GPU: Unknown GPU x1
System memory: 32197 MB
Video memory: 256 MB
Sync threads: 7
Async threads: 8

---- MathLib ----
Set SSE2 simd processor

---- Sound ----
Renderer: OpenAL Soft
OpenAL vendor: OpenAL Community
OpenAL renderer: OpenAL Soft
OpenAL version: 1.1 ALSOFT 1.18.2
Found AL_EXT_LINEAR_DISTANCE
Found AL_EXT_OFFSET
Found ALC_EXT_EFX
Found EFX Filter
Found EFX Reverb
Found EAX Reverb
Found QUAD16 format
Found 51CHN16 format
Found 61CHN16 format
Found 71CHN16 format
Maximum sources: 256
Maximum effect slots: 16
Maximum auxiliary sends: 2

---- Render ----
GLRender::GLRender(): Unknown ATI GPU
OpenGL vendor: X.Org
OpenGL renderer: AMD Radeon (TM) RX 480 Graphics (AMD POLARIS10 / DRM 3.23.0 / 4.15.0-rc8-amd64, LLVM 5.0.0)
OpenGL version: 4.5 (Core Profile) Mesa 17.2.5
OpenGL flags: Core Profile
Found required GL_ARB_map_buffer_range
Found required GL_ARB_vertex_array_object
Found required GL_ARB_draw_instanced
Found required GL_ARB_draw_elements_base_vertex
Found required GL_ARB_transform_feedback
Found required GL_ARB_half_float_vertex
Found required GL_ARB_half_float_pixel
Found required GL_ARB_framebuffer_object
Found required GL_ARB_texture_multisample
Found required GL_ARB_uniform_buffer_object
Found required GL_ARB_geometry_shader4
Found optional GL_ARB_blend_func_extended
Found optional GL_ARB_tessellation_shader
Found optional GL_ARB_shader_bit_encoding
Found optional GL_ARB_sample_shading
Found optional GL_ARB_compute_shader
Found optional GL_ARB_gpu_shader5
Found optional GL_EXT_texture_compression_s3tc
Found optional GL_ARB_texture_compression_rgtc
Shading language: 4.50
Maximum texture size: 16384
Maximum texture units: 192
Maximum texture renders: 8

---- Physics ----
Physics: Multi-threaded

---- PathFind ----
PathFind: Multi-threaded

GPUMonitorPlugin::init(): can't initialize GPUMonitor
EnginePlugins::init(): can't initialize "GPUMonitor" plugin
---- Interpreter ----
Version: 2.52

Benchmark results:
Time: 260.652
Frames: 19510
FPS: 74.8508
Min FPS: 14.4261
Max FPS: 161.417
Score: 1885.49
Unigine~# quit
Close "libopenal.so.1"
Close "libGL.so.1"
Memory usage: none
Allocations: none
Shutdown

[Chewi]

I've been using DC for ages and switched to rc9 yesterday. I haven't noticed any performance issues on my RX 480.

[dwagner]

Does for any of you RX 4xx owners resume from S3 work with amdgpu?
I still have to use a kernel from October 2017, because all of the newer ones crash when trying trying to resume from S3 with amdgpu loaded.

[Darknation]

Does for any of you RX 4xx owners resume from S3 work with amdgpu?
I still have to use a kernel from October 2017, because all of the newer ones crash when trying trying to resume from S3 with amdgpu loaded.

What distribution are you using?

[tildearrow]

Typo:

But there is the initial KPTI and Retpolinue support baked in,

[randomsalad]

Does for any of you RX 4xx owners resume from S3 work with amdgpu?
I still have to use a kernel from October 2017, because all of the newer ones crash when trying trying to resume from S3 with amdgpu loaded.

Have you tried simply disabling suspend in the X server? Not that I think it's an actual solution, but if there are other features in the new kernel you want it could be worth trying.

All you need to do is add a ServerFlags section to your Xorg.conf file with the SuspendTime option set to 0.