From 67300c34c41a6864b4ca783849c1fdee7765ab1c Mon Sep 17 00:00:00 2001
From: Felix Kuehling <Felix.Kuehling@amd.com>
Date: Tue, 7 Dec 2021 22:20:35 -0500
Subject: drm/amdkfd: Make KFD support on Hawaii experimental
Git-commit: 0f7ef0b99da15b28fad78da788e55adc642283c8
Patch-mainline: v5.17-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Hawaii support is mostly untested these days. ROCm user mode also
depends on custom firmware for AQL packet processing, that was never
pushed upstream due to quality regressions in graphics driver testing.
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdkfd/kfd_device.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index 267668b96456..facc28f58c1f 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -147,7 +147,11 @@ struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf)
#ifdef CONFIG_DRM_AMDGPU_CIK
case CHIP_HAWAII:
gfx_target_version = 70001;
- if (!vf)
+ if (!amdgpu_exp_hw_support)
+ pr_info(
+ "KFD support on Hawaii is experimental. See modparam exp_hw_support\n"
+ );
+ else if (!vf)
f2g = &gfx_v7_kfd2kgd;
break;
#endif
--
2.38.1