From: Evan Quan <evan.quan@amd.com>
Date: Thu, 5 Jul 2018 10:30:36 +0800
Subject: drm/amdgpu: reduce the idle period that RLC has to wait before
request CGCG
Git-commit: a5aedc2d18bcb33816545f39f13a37a0c86b3b3d
Patch-mainline: v4.19-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Gfxoff feature may depends on the CGCG(on vega12, that's the case). This
change will help to enable gfxoff feature more frequently.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -3632,9 +3632,11 @@ static void gfx_v9_0_update_3d_clock_gat
/* update CGCG and CGLS override bits */
if (def != data)
WREG32_SOC15(GC, 0, mmRLC_CGTT_MGCG_OVERRIDE, data);
- /* enable 3Dcgcg FSM(0x0020003f) */
+
+ /* enable 3Dcgcg FSM(0x0000363f) */
def = RREG32_SOC15(GC, 0, mmRLC_CGCG_CGLS_CTRL_3D);
- data = (0x2000 << RLC_CGCG_CGLS_CTRL_3D__CGCG_GFX_IDLE_THRESHOLD__SHIFT) |
+
+ data = (0x36 << RLC_CGCG_CGLS_CTRL_3D__CGCG_GFX_IDLE_THRESHOLD__SHIFT) |
RLC_CGCG_CGLS_CTRL_3D__CGCG_EN_MASK;
if (adev->cg_flags & AMD_CG_SUPPORT_GFX_3D_CGLS)
data |= (0x000F << RLC_CGCG_CGLS_CTRL_3D__CGLS_REP_COMPANSAT_DELAY__SHIFT) |
@@ -3681,9 +3683,10 @@ static void gfx_v9_0_update_coarse_grain
if (def != data)
WREG32_SOC15(GC, 0, mmRLC_CGTT_MGCG_OVERRIDE, data);
- /* enable cgcg FSM(0x0020003F) */
+ /* enable cgcg FSM(0x0000363F) */
def = RREG32_SOC15(GC, 0, mmRLC_CGCG_CGLS_CTRL);
- data = (0x2000 << RLC_CGCG_CGLS_CTRL__CGCG_GFX_IDLE_THRESHOLD__SHIFT) |
+
+ data = (0x36 << RLC_CGCG_CGLS_CTRL__CGCG_GFX_IDLE_THRESHOLD__SHIFT) |
RLC_CGCG_CGLS_CTRL__CGCG_EN_MASK;
if (adev->cg_flags & AMD_CG_SUPPORT_GFX_CGLS)
data |= (0x000F << RLC_CGCG_CGLS_CTRL__CGLS_REP_COMPANSAT_DELAY__SHIFT) |