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drm/amdgpu: make gfx9 enter into rlc safe mode when set MGCG

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MGCG should RLC enter into safe mode first.

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Likun Gao 2019-01-02 12:20:12 +08:00 committed by Alex Deucher
parent 96d8f63c44
commit abc856259a
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
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@ -3586,6 +3586,8 @@ static void gfx_v9_0_update_medium_grain_clock_gating(struct amdgpu_device *adev
{
uint32_t data, def;
amdgpu_gfx_rlc_enter_safe_mode(adev);
/* It is disabled by HW by default */
if (enable && (adev->cg_flags & AMD_CG_SUPPORT_GFX_MGCG)) {
/* 1 - RLC_CGTT_MGCG_OVERRIDE */
@ -3650,6 +3652,8 @@ static void gfx_v9_0_update_medium_grain_clock_gating(struct amdgpu_device *adev
WREG32_SOC15(GC, 0, mmCP_MEM_SLP_CNTL, data);
}
}
amdgpu_gfx_rlc_exit_safe_mode(adev);
}
static void gfx_v9_0_update_3d_clock_gating(struct amdgpu_device *adev,