linux-kernel - [PATCH 4.9 048/116] drm/amdgpu: fix enable_cp_power_gating in gfx

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Message-Id: <20170106213911.078916677@linuxfoundation.org>
Date:   Fri,  6 Jan 2017 22:43:30 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Rex Zhu <Rex.Zhu@....com>,
        Alex Deucher <alexander.deucher@....com>
Subject: [PATCH 4.9 048/116] drm/amdgpu: fix enable_cp_power_gating in gfx_v8.0.

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

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

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

commit eb584241226958d45aa1f07f4f6a6ea9da98b29e upstream.

the CP_PG_DISABLE bit was reversed.

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