From 61a4d4ab7e188efd9b6573865a1f23185ccf98b5 Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Wed, 11 Dec 2019 10:21:01 +0000
Subject: drm/amdgpu: log when amdgpu.dc=1 but ASIC is unsupported
Git-commit: 93b09a9a892ba07bd99132d9bb6318e31c7f2f79
Patch-mainline: v5.6-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
This makes it easier to figure out whether the kernel parameter has been
taken into account.
Signed-off-by: Simon Ser <contact@emersion.fr>
Cc: Harry Wentland <hwentlan@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 3aa9a6845312..d239433bdec3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2636,6 +2636,9 @@ bool amdgpu_device_asic_has_dc_support(enum amd_asic_type asic_type)
return amdgpu_dc != 0;
#endif
default:
+ if (amdgpu_dc > 0)
+ DRM_INFO("Display Core has been requested via kernel parameter "
+ "but isn't supported by ASIC, ignoring\n");
return false;
}
}
--
2.28.0