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drm/amdgpu/gfx10: refine mgcg setting 

commit de7a1b0b87 upstream.

1. enable ENABLE_CGTS_LEGACY to fix specviewperf11 random hang.
2. remove obsolete RLC_CGTT_SCLK_OVERRIDE workaround.

Signed-off-by: Jiansong Chen <Jiansong.Chen@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Jiansong Chen 2020-08-24 18:44:09 +08:00 committed by Greg Kroah-Hartman
parent 8fc7a66619
commit 20700b352d
1 changed files with 2 additions and 4 deletions
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6
drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
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@ -4094,10 +4094,8 @@ static void gfx_v10_0_update_medium_grain_clock_gating(struct amdgpu_device *ade
def = data = RREG32_SOC15(GC, 0, mmRLC_CGTT_MGCG_OVERRIDE);
data &= ~(RLC_CGTT_MGCG_OVERRIDE__GRBM_CGTT_SCLK_OVERRIDE_MASK |
RLC_CGTT_MGCG_OVERRIDE__GFXIP_MGCG_OVERRIDE_MASK |
RLC_CGTT_MGCG_OVERRIDE__GFXIP_MGLS_OVERRIDE_MASK);
/* only for Vega10 & Raven1 */
data |= RLC_CGTT_MGCG_OVERRIDE__RLC_CGTT_SCLK_OVERRIDE_MASK;
RLC_CGTT_MGCG_OVERRIDE__GFXIP_MGLS_OVERRIDE_MASK |
RLC_CGTT_MGCG_OVERRIDE__ENABLE_CGTS_LEGACY_MASK);
if (def != data)
WREG32_SOC15(GC, 0, mmRLC_CGTT_MGCG_OVERRIDE, data);