linux-kernel - [PATCH 4.4 02/51] drm/amdgpu: fix IB alignment for UVD

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Message-Id: <20161029134922.594115893@linuxfoundation.org>
Date:   Sat, 29 Oct 2016 09:49:03 -0400
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Peter Fang <peter.fang@....com>,
        Alex Deucher <alexander.deucher@....com>
Subject: [PATCH 4.4 02/51] drm/amdgpu: fix IB alignment for UVD

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alex Deucher <alexander.deucher@....com>

commit c4795ca642b8bd76b5b6ffba41ba909543273d43 upstream.

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

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

---
 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- 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_
 			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;