[PATCH 1/4] drm/amdgpu: don't try to reserve training bo for sriov

[Monk Liu]

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)

Signed-off-by: Monk Liu <Monk.Liu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 665db23..54cfa3a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -1859,9 +1859,10 @@ 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.
 	 */
-	r = amdgpu_ttm_training_reserve_vram_init(adev);
-	if (r)
-		return r;
+	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
-- 
2.7.4