From ecef814c994d7d00dfa7bef5aa87dd66e8574946 Mon Sep 17 00:00:00 2001
From: Chuanxiao Dong <chuanxiao.dong@intel.com>
Date: Sat, 27 May 2017 17:44:19 +0800
Subject: [PATCH] drm/i915/gvt: Return -EIO if host GuC submission is enabled when loading GVT-g
Git-commit: ecef814c994d7d00dfa7bef5aa87dd66e8574946
Patch-mainline: v4.13-rc1
References: FATE#322643 bsc#1055900
Currently GVT-g cannot work properly when host GuC submission is
enabled, so make the driver loading failed in this case.
V2:
- use DRM_ERROR as it is a fatal message. (Chris)
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1495878259-7733-2-git-send-email-chuanxiao.dong@intel.com
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/i915/intel_gvt.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/drivers/gpu/drm/i915/intel_gvt.c
+++ b/drivers/gpu/drm/i915/intel_gvt.c
@@ -100,6 +100,11 @@ int intel_gvt_init(struct drm_i915_priva
return -EIO;
}
+ if (i915.enable_guc_submission) {
+ DRM_ERROR("i915 GVT-g loading failed due to Graphics virtualization is not yet supported with GuC submission\n");
+ return -EIO;
+ }
+
/*
* We're not in host or fail to find a MPT module, disable GVT-g
*/