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drm/amdgpu/gfx8: Add serdes wait for idle in CGCG en/disable

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Must wait for SERDES idle before exiting RLC SAFEMODE

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tom St Denis 2016-05-26 09:47:44 -04:00 • committed by Alex Deucher
parent 0c9e20055d
commit 7894745abb
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
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@ -5805,6 +5805,8 @@ static void gfx_v8_0_update_coarse_grain_clock_gating(struct amdgpu_device *adev
WREG32(mmRLC_CGCG_CGLS_CTRL, data);
}
gfx_v8_0_wait_for_rlc_serdes(adev);
adev->gfx.rlc.funcs->exit_safe_mode(adev);
}
static int gfx_v8_0_update_gfx_clock_gating(struct amdgpu_device *adev,