From: Rex Zhu <Rex.Zhu@amd.com>
Date: Thu, 18 Aug 2016 05:02:46 +0000 (+0800)
Subject: drm/amd/powerplay: add bypass mode for vce 2.0.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=cbb2fe8e967dbc88f236aa7da1bb3f79b61022f9;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

drm/amd/powerplay: add bypass mode for vce 2.0.

fix issue after vce encode, the eclk stay high.

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>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c
index 3fcc33f9ae70..58af0da387b8 100644
--- a/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c
@@ -30,10 +30,10 @@
 #include "amdgpu.h"
 #include "amdgpu_vce.h"
 #include "cikd.h"
-
 #include "vce/vce_2_0_d.h"
 #include "vce/vce_2_0_sh_mask.h"
-
+#include "smu/smu_7_0_1_d.h"
+#include "smu/smu_7_0_1_sh_mask.h"
 #include "oss/oss_2_0_d.h"
 #include "oss/oss_2_0_sh_mask.h"
 
@@ -539,11 +539,28 @@ static int vce_v2_0_process_interrupt(struct amdgpu_device *adev,
 	return 0;
 }
 
+static void vce_v2_0_set_bypass_mode(struct amdgpu_device *adev, bool enable)
+{
+	u32 tmp = RREG32_SMC(ixGCK_DFS_BYPASS_CNTL);
+
+	if (enable)
+		tmp |= GCK_DFS_BYPASS_CNTL__BYPASSECLK_MASK;
+	else
+		tmp &= ~GCK_DFS_BYPASS_CNTL__BYPASSECLK_MASK;
+
+	WREG32_SMC(ixGCK_DFS_BYPASS_CNTL, tmp);
+}
+
+
 static int vce_v2_0_set_clockgating_state(void *handle,
 					  enum amd_clockgating_state state)
 {
 	bool gate = false;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	bool enable = (state == AMD_CG_STATE_GATE) ? true : false;
+
+
+	vce_v2_0_set_bypass_mode(adev, enable);
 
 	if (state == AMD_CG_STATE_GATE)
 		gate = true;