[PATCH 2/2] drm/amdkfd: Make KFD support on Hawaii experimental

Felix Kuehling Felix.Kuehling at amd.com
Wed Dec 8 08:25:31 UTC 2021


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 at amd.com>
---
 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
-- 
2.32.0



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