From: Alex Deucher <alexander.deucher@amd.com>
Date: Mon, 22 Aug 2016 20:31:36 +0000 (-0400)
Subject: drm/amdgpu: fix IB alignment for UVD
X-Git-Tag: firefly_0821_release~176^2~4^2~21^2~53
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2aedf0e301a3ac2305bd9e6b7112bd858e37abb0;p=firefly-linux-kernel-4.4.55.git

drm/amdgpu: fix IB alignment for UVD

commit c4795ca642b8bd76b5b6ffba41ba909543273d43 upstream.

According to the hw team, it should be 16, not 8.

Cc: Peter Fang <peter.fang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 4488e82f87b0..a5c824078472 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -227,7 +227,7 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
 			type = AMD_IP_BLOCK_TYPE_UVD;
 			ring_mask = adev->uvd.ring.ready ? 1 : 0;
 			ib_start_alignment = AMDGPU_GPU_PAGE_SIZE;
-			ib_size_alignment = 8;
+			ib_size_alignment = 16;
 			break;
 		case AMDGPU_HW_IP_VCE:
 			type = AMD_IP_BLOCK_TYPE_VCE;