Adding dri-devel. This patch set basically adds a driver option to enable virtual display hw if the user needs it (e.g., virtualization environments, headless cards, pre-silicon environments, etc.). It looks like a regular KMS crtc/encoder/connector and works with existing userspace unchanged.
Alex On Thu, Aug 4, 2016 at 3:04 AM, Emily Deng <Emily.Deng at amd.com> wrote: > The Virtual Display feature is to fake a display engine in amdgpu kernel > driver, which allows any other kernel modules or user mode components to work > as expected even without real display HW. User can get the desktop/primary > surface through remote desktop tools instead of displaying HW associated with > the GPU. > The virtual display feature is designed for following cases: > 1)Headless GPU, which has no display engine, while for some reason the X > server is required to initialize in this GPU; > 2)GPU with head (display engine) but Video BIOS disables display capability > for some reason. For example, SR-IOV virtualization enabled Video BIOS often > disables display connector. Some S-series Pro-Graphics designed for headless > computer also disable display capability in Video BIOS; > 3)For whatever reason, end user wants to enable a virtual display (donât > need HW display capability). > > Emily Deng (13): > drm/amdgpu: Add virtual connector and encoder macros. > drm/amdgpu: Initialize dce_virtual_ip_funcs > drm/amdgpu: Initialize dce_virtual_display_funcs. > drm/amdgpu: Initialize crtc, pageflip irq funcs > drm/amdgpu: Initialize dce_virtual_crtc_helper_funcs > drm/amdgpu: Initialize dce_virtual_crtc_funcs. > drm/amdgpu: Disable VGA render and crtc when init GMC. > drm/amdgpu: Use software timer to generate vsync interrupt. > drm/amdgpu: Call pageflip irq funtion when receiced vsync interrupt. > drm/amdgpu: Add DRM_MODE_CONNECTOR_VIRTUAL connector in > amdgpu_connector_add. > drm/amdgpu: Define vitual display ip blocks. > drm/amdgpu: Define one variable for virtual display. > drm/amdgpu: Set ip_blocks according variable amdgpu_virtual_display. > > drivers/gpu/drm/amd/amdgpu/Makefile | 3 +- > drivers/gpu/drm/amd/amdgpu/ObjectID.h | 7 + > drivers/gpu/drm/amd/amdgpu/amdgpu.h | 3 + > drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | 27 + > drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h | 2 + > drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 95 +++ > drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 5 + > drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 5 +- > drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 4 + > drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h | 9 +- > drivers/gpu/drm/amd/amdgpu/cik.c | 445 +++++++++++-- > drivers/gpu/drm/amd/amdgpu/dce_v10_0.c | 75 +++ > drivers/gpu/drm/amd/amdgpu/dce_v10_0.h | 2 + > drivers/gpu/drm/amd/amdgpu/dce_v11_0.c | 83 +++ > drivers/gpu/drm/amd/amdgpu/dce_v11_0.h | 2 + > drivers/gpu/drm/amd/amdgpu/dce_v8_0.c | 82 +++ > drivers/gpu/drm/amd/amdgpu/dce_v8_0.h | 2 + > drivers/gpu/drm/amd/amdgpu/dce_virtual.c | 855 > +++++++++++++++++++++++++ > drivers/gpu/drm/amd/amdgpu/dce_virtual.h | 31 + > drivers/gpu/drm/amd/amdgpu/vi.c | 416 ++++++++++-- > 20 files changed, 2062 insertions(+), 91 deletions(-) > create mode 100644 drivers/gpu/drm/amd/amdgpu/dce_virtual.c > create mode 100644 drivers/gpu/drm/amd/amdgpu/dce_virtual.h > > -- > 1.9.1 > > _______________________________________________ > amd-gfx mailing list > amd-gfx at lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/amd-gfx
