This patch set adds Zero FrameBuffer (ZFB) support to amdgpu. This feature is used for emulators and early silicon before vram is available. System ram is used for "vram". Feifei Xu (6): drm/amdgpu: add new member in amdgpu_mc for zfb support drm/amdgpu: add amdgpu module parameter for zfb drm/amdgpu: init zfb start address and size drm/amdgpu: user reserved zfb to init vram base offset and size drm/amdgpu: enable physical transaction for ptd/pde when ZFB is enabled drm/amdgpu: program system bit for pte/pde when ZFB is enabled Hawking Zhang (1): drm/amdgpu: program AGP aperture as frame buffer when ZFB is enabled drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 9 ++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 4 ++++ drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | 4 ++++ drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c | 30 +++++++++++++++++++++------ drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 33 ++++++++++++++++++++++++------ drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c | 30 +++++++++++++++++++++------ 7 files changed, 93 insertions(+), 18 deletions(-) -- 2.13.6