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From c97288faffbb08ce5ae43bcbe32f06c8ba7be0f6 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Fri, 29 Apr 2016 11:44:32 -0400
Subject: [PATCH 1065/1110] drm/amdgpu/uvd6: add bypass support for fiji (v2)
Handle uvd clock bypass settings as part of clockgating
setup.
v2: fix gate logic
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Eric Huang <JinHuiEric.Huang@amd.com>
---
drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
index 5665a4f..d015cb0 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
@@ -31,6 +31,8 @@
#include "uvd/uvd_6_0_sh_mask.h"
#include "oss/oss_2_0_d.h"
#include "oss/oss_2_0_sh_mask.h"
+#include "smu/smu_7_1_3_d.h"
+#include "smu/smu_7_1_3_sh_mask.h"
#include "vi.h"
static void uvd_v6_0_set_ring_funcs(struct amdgpu_device *adev);
@@ -823,6 +825,20 @@ static void uvd_v6_0_set_hw_clock_gating(struct amdgpu_device *adev)
}
#endif
+static void uvd_v6_set_bypass_mode(struct amdgpu_device *adev, bool enable)
+{
+ u32 tmp = RREG32_SMC(ixGCK_DFS_BYPASS_CNTL);
+
+ if (enable)
+ tmp |= (GCK_DFS_BYPASS_CNTL__BYPASSDCLK_MASK |
+ GCK_DFS_BYPASS_CNTL__BYPASSVCLK_MASK);
+ else
+ tmp &= ~(GCK_DFS_BYPASS_CNTL__BYPASSDCLK_MASK |
+ GCK_DFS_BYPASS_CNTL__BYPASSVCLK_MASK);
+
+ WREG32_SMC(ixGCK_DFS_BYPASS_CNTL, tmp);
+}
+
static int uvd_v6_0_set_clockgating_state(void *handle,
enum amd_clockgating_state state)
{
@@ -830,6 +846,9 @@ static int uvd_v6_0_set_clockgating_state(void *handle,
bool enable = (state == AMD_CG_STATE_GATE) ? true : false;
static int curstate = -1;
+ if (adev->asic_type == CHIP_FIJI)
+ uvd_v6_set_bypass_mode(adev, enable);
+
if (!(adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG))
return 0;
--
2.7.4
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