Patch "drm/amdgpu/gfx6: properly cache mc_arb_ramcfg" has been added to the 4.12-stable tree

Patch "drm/amdgpu/gfx6: properly cache mc_arb_ramcfg" has been added to the 4.12-stable tree

[gregkh]

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

    drm/amdgpu/gfx6: properly cache mc_arb_ramcfg

to the 4.12-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-gfx6-properly-cache-mc_arb_ramcfg.patch
and it can be found in the queue-4.12 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 6653ebd48f493efe3f3598ff3fe7b3d5451665df Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Fri, 2 Jun 2017 16:30:46 -0400
Subject: drm/amdgpu/gfx6: properly cache mc_arb_ramcfg

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

commit 6653ebd48f493efe3f3598ff3fe7b3d5451665df upstream.

This was missing for gfx6.

Acked-by: Huang Rui <ray.huang@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_v6_0.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
@@ -1688,7 +1688,8 @@ static void gfx_v6_0_gpu_init(struct amd
 	WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
 
 	mc_shared_chmap = RREG32(mmMC_SHARED_CHMAP);
-	mc_arb_ramcfg = RREG32(mmMC_ARB_RAMCFG);
+	adev->gfx.config.mc_arb_ramcfg = RREG32(mmMC_ARB_RAMCFG);
+	mc_arb_ramcfg = adev->gfx.config.mc_arb_ramcfg;
 
 	adev->gfx.config.num_tile_pipes = adev->gfx.config.max_tile_pipes;
 	adev->gfx.config.mem_max_burst_length_bytes = 256;


Patches currently in stable-queue which might be from alexander.deucher@amd.com are

queue-4.12/drm-amdgpu-gfx6-properly-cache-mc_arb_ramcfg.patch