[PATCH 2/4] drm/amdgpu: increase CGCG gfx idle threshold for Arcturus

[Wang, Kevin(Yang)]

Reviewed-by: Kevin Wang <kevin1.wang at amd.com>
________________________________
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> on behalf of Le Ma <le.ma at amd.com>
Sent: Friday, August 9, 2019 7:26 PM
To: amd-gfx at lists.freedesktop.org <amd-gfx at lists.freedesktop.org>
Cc: Ma, Le <Le.Ma at amd.com>
Subject: [PATCH 2/4] drm/amdgpu: increase CGCG gfx idle threshold for Arcturus

Follow the hw spec, and no need to consider gfxoff on Arcturus

Change-Id: Ib9cad79b1b9c096014447fc0a7d29cdb594e15e3
Signed-off-by: Le Ma <le.ma at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 78150ff..9b85a73 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -4677,8 +4677,12 @@ static void gfx_v9_0_update_coarse_grain_clock_gating(struct amdgpu_device *adev
                 /* enable cgcg FSM(0x0000363F) */
                 def = RREG32_SOC15(GC, 0, mmRLC_CGCG_CGLS_CTRL);

-               data = (0x36 << RLC_CGCG_CGLS_CTRL__CGCG_GFX_IDLE_THRESHOLD__SHIFT) |
-                       RLC_CGCG_CGLS_CTRL__CGCG_EN_MASK;
+               if (adev->asic_type == CHIP_ARCTURUS)
+                       data = (0x2000 << RLC_CGCG_CGLS_CTRL__CGCG_GFX_IDLE_THRESHOLD__SHIFT) |
+                               RLC_CGCG_CGLS_CTRL__CGCG_EN_MASK;
+               else
+                       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) |
                                 RLC_CGCG_CGLS_CTRL__CGLS_EN_MASK;
--
2.7.4

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