Patch "drm/amdgpu: fix init save/restore list in gfx_v8.0" has been added to the 4.8-stable tree

Patch "drm/amdgpu: fix init save/restore list in gfx_v8.0" has been added to the 4.8-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    drm/amdgpu: fix init save/restore list in gfx_v8.0

to the 4.8-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-amdgpu-fix-init-save-restore-list-in-gfx_v8.0.patch
and it can be found in the queue-4.8 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 202e0b227b906cb80a2791f21216a55d9468d61b Mon Sep 17 00:00:00 2001
From: Rex Zhu <Rex.Zhu@amd.com>
Date: Wed, 7 Dec 2016 17:44:20 +0800
Subject: drm/amdgpu: fix init save/restore list in gfx_v8.0

From: Rex Zhu <Rex.Zhu@amd.com>

commit 202e0b227b906cb80a2791f21216a55d9468d61b upstream.

set valid data to mmRLC_SRM_INDEX_CNTL_ADDRx/DATAx.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -3798,8 +3798,12 @@ static int gfx_v8_0_init_save_restore_li
 	temp = mmRLC_SRM_INDEX_CNTL_ADDR_0;
 	data = mmRLC_SRM_INDEX_CNTL_DATA_0;
 	for (i = 0; i < sizeof(unique_indices) / sizeof(int); i++) {
-		amdgpu_mm_wreg(adev, temp + i, unique_indices[i] & 0x3FFFF, false);
-		amdgpu_mm_wreg(adev, data + i, unique_indices[i] >> 20, false);
+		if (unique_indices[i] != 0) {
+			amdgpu_mm_wreg(adev, temp + i,
+					unique_indices[i] & 0x3FFFF, false);
+			amdgpu_mm_wreg(adev, data + i,
+					unique_indices[i] >> 20, false);
+		}
 	}
 	kfree(register_list_format);
 


Patches currently in stable-queue which might be from Rex.Zhu@amd.com are

queue-4.8/drm-amdgpu-fix-init-save-restore-list-in-gfx_v8.0.patch