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From a5fc2102ff5429bbd01200e5e27c59233e8171d4 Mon Sep 17 00:00:00 2001
From: Tom St Denis <tom.stdenis@amd.com>
Date: Sat, 2 Jul 2016 00:52:32 +0530
Subject: [PATCH 1088/1110] drm/amdgpu/gfx8: Enable GFX PG on CZ
Based on Alex's patches this enables GFX PG on CZ.
Tested with xonotic-glx/glxgears/supertuxkart and idle desktop.
Also read-back registers via umr for verificiation that the bits
are truly enabled.
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Kalyan Alle <kalyan.alle@amd.com>
---
drivers/gpu/drm/amd/amdgpu/vi.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index cc5ebd3..16070de 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -1537,7 +1537,15 @@ static int vi_common_early_init(void *handle)
AMD_CG_SUPPORT_HDP_LS |
AMD_CG_SUPPORT_SDMA_MGCG |
AMD_CG_SUPPORT_SDMA_LS;
- adev->pg_flags = 0;
+ /* rev0 hardware doesn't support PG */
+ if (adev->rev_id != 0x00)
+ adev->pg_flags |= AMDGPU_PG_SUPPORT_GFX_PG |
+ AMDGPU_PG_SUPPORT_GFX_SMG |
+ AMDGPU_PG_SUPPORT_GFX_DMG |
+ AMDGPU_PG_SUPPORT_CP |
+ AMDGPU_PG_SUPPORT_RLC_SMU_HS |
+ AMDGPU_PG_SUPPORT_GFX_PIPELINE;
+
adev->external_rev_id = adev->rev_id + 0x1;
break;
case CHIP_STONEY:
--
2.7.4
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