Patch "drm/amdgpu: fix enable_cp_power_gating in gfx_v8.0." has been added to the 4.9-stable tree

Patch "drm/amdgpu: fix enable_cp_power_gating in gfx_v8.0." has been added to the 4.9-stable tree

[gregkh]

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

    drm/amdgpu: fix enable_cp_power_gating in gfx_v8.0.

to the 4.9-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-enable_cp_power_gating-in-gfx_v8.0.patch
and it can be found in the queue-4.9 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 eb584241226958d45aa1f07f4f6a6ea9da98b29e Mon Sep 17 00:00:00 2001
From: Rex Zhu <Rex.Zhu@amd.com>
Date: Wed, 7 Dec 2016 17:22:25 +0800
Subject: drm/amdgpu: fix enable_cp_power_gating in gfx_v8.0.

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

commit eb584241226958d45aa1f07f4f6a6ea9da98b29e upstream.

the CP_PG_DISABLE bit was reversed.

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 |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -3994,7 +3994,7 @@ static void cz_enable_sck_slow_down_on_p
 
 static void cz_enable_cp_power_gating(struct amdgpu_device *adev, bool enable)
 {
-	WREG32_FIELD(RLC_PG_CNTL, CP_PG_DISABLE, enable ? 1 : 0);
+	WREG32_FIELD(RLC_PG_CNTL, CP_PG_DISABLE, enable ? 0 : 1);
 }
 
 static void gfx_v8_0_init_pg(struct amdgpu_device *adev)


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

queue-4.9/drm-amdgpu-fix-enable_cp_power_gating-in-gfx_v8.0.patch
queue-4.9/drm-amdgpu-fix-init-save-restore-list-in-gfx_v8.0.patch