Commit e862b08b authored Mar 04, 2020 by Monk Liu Committed by Alex Deucher Mar 25, 2020

drm/amdgpu: don't try to reserve training bo for sriov (v2)



1) SRIOV guest KMD doesn't care training buffer
2) if we resered training buffer that will overlap with IP discovery
reservation because training buffer is at vram_size - 0x8000 and
IP discovery is at ()vram_size - 0x10000 => vram_size -1)

v2: squash in warning fix from Nirmoy

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Emily Deng <Emily.Deng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent e1188aac

drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c

+5 −3

Original line number	Diff line number	Diff line
		@@ -1840,9 +1840,11 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
		*The reserved vram for memory training must be pinned to the specified
		*place on the VRAM, so reserve it early.
		*/
		if (!amdgpu_sriov_vf(adev)) {
		r = amdgpu_ttm_training_reserve_vram_init(adev);
		if (r)
		return r;
		}

		/* allocate memory as required for VGA
		* This is used for VGA emulation and pre-OS scanout buffers to

Admin message