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Initial amdgpu driver release
Alex Deucheralexdeucher at gmail.com
Mon Apr 20 15:49:06 PDT 2015
On Mon, Apr 20, 2015 at 6:33 PM, Alex Deucher <alexdeucher at gmail.com> wrote:> I'm pleased to announce the initial release of the new amdgpu driver.> This is a partial replacement for the radeon driver for newer AMD> asics. A number of components are still shared. Here is a comparison> of the radeon and amdgpu stacks:>> 1. radeon stack> kernel driver: radeon.ko> libdrm: libdrm_radeon> mesa: radeon, r200, r300, r600, radeonsi> ddx: xf86-video-ati>> 2. amdgpu stack> kernel driver: amdgpu.ko> libdrm: libdrm_amdgpu> mesa: radeonsi> ddx: xf86-video-amdgpu>> Older asics will continue to be supported by the radeon stack; new> asics will be supported by the amdgpu stack. CI (Sea Islands) asics> have support in both driver stacks, but this is purely for testing> purposes. CI parts are officially supported in the radeon stack.> Support for CI on the amdgpu stack is determined by a config option in> the kernel. CI support is not enabled by default for amdgpu.>> Most of our focus has been on Carrizo support, so there are some gaps> in the dGPU support for Tonga and Iceland, notably power management.> Those gaps will be filled in eventually.>> Also included in this code base are full register headers for just> about every block on the asics.>> Barring the gaps mentioned above, the driver stack is functionally on> par with radeon including:> - OpenGL 3.3 support using the radeonsi mesa driver> - Video decode support using UVD> - Video encode support using VCE>> The code can be found in the amdgpu branches of the following git trees.> xf86-video-amdgpu:>http://cgit.freedesktop.org/~agd5f/xf86-video-amdgpu/log/?h=amdgpu> libdrm:>http://cgit.freedesktop.org/~agd5f/drm/log/?h=amdgpu> kernel:>http://cgit.freedesktop.org/~agd5f/linux/log/?h=amdgpu> mesa:>http://cgit.freedesktop.org/~mareko/mesa/log/?h=amdgpu>I forgot to mention, the latest ucode can be found here:http://people.freedesktop.org/~agd5f/radeon_ucode/Alex> To test the new driver stack you will need to specify a device section> in your xorg.conf with the driver set to amdgpu rather than radeon.>> Please review!>> Thanks,>> The AMD Linux Driver Team
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