From 67b7f33eeeaa6368289c6d25b283432e02dcc1c1 Mon Sep 17 00:00:00 2001
From: Chuanxiao Dong <chuanxiao.dong@intel.com>
Date: Sat, 27 May 2017 17:44:17 +0800
Subject: [PATCH] drm/i915/gvt: Add gvt options sanitize function
Git-commit: 67b7f33eeeaa6368289c6d25b283432e02dcc1c1
Patch-mainline: v4.13-rc1
References: FATE#322643 bsc#1055900
The intel_gvt_sanitize_options will sanitize the GVT related
options before doing initialize the GVT.
Suggested-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/i915/i915_drv.c | 2 ++
drivers/gpu/drm/i915/intel_gvt.c | 36 ++++++++++++++++++++++++++----------
drivers/gpu/drm/i915/intel_gvt.h | 5 +++++
3 files changed, 33 insertions(+), 10 deletions(-)
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -997,6 +997,8 @@ static void intel_sanitize_options(struc
DRM_DEBUG_DRIVER("use GPU semaphores? %s\n", yesno(i915.semaphores));
intel_uc_sanitize_options(dev_priv);
+
+ intel_gvt_sanitize_options(dev_priv);
}
/**
--- a/drivers/gpu/drm/i915/intel_gvt.c
+++ b/drivers/gpu/drm/i915/intel_gvt.c
@@ -51,6 +51,32 @@ static bool is_supported_device(struct d
}
/**
+ * intel_gvt_sanitize_options - sanitize GVT related options
+ * @dev_priv: drm i915 private data
+ *
+ * This function is called at the i915 options sanitize stage.
+ */
+void intel_gvt_sanitize_options(struct drm_i915_private *dev_priv)
+{
+ if (!i915.enable_gvt)
+ return;
+
+ if (intel_vgpu_active(dev_priv)) {
+ DRM_INFO("GVT-g is disabled for guest\n");
+ goto bail;
+ }
+
+ if (!is_supported_device(dev_priv)) {
+ DRM_INFO("Unsupported device. GVT-g is disabled\n");
+ goto bail;
+ }
+
+ return;
+bail:
+ i915.enable_gvt = 0;
+}
+
+/**
* intel_gvt_init - initialize GVT components
* @dev_priv: drm i915 private data
*
@@ -69,16 +95,6 @@ int intel_gvt_init(struct drm_i915_priva
return 0;
}
- if (intel_vgpu_active(dev_priv)) {
- DRM_DEBUG_DRIVER("GVT-g is disabled for guest\n");
- goto bail;
- }
-
- if (!is_supported_device(dev_priv)) {
- DRM_DEBUG_DRIVER("Unsupported device. GVT-g is disabled\n");
- goto bail;
- }
-
if (!i915.enable_execlists) {
DRM_INFO("GPU guest virtualisation [GVT-g] disabled due to disabled execlist submission [i915.enable_execlists module parameter]\n");
goto bail;
--- a/drivers/gpu/drm/i915/intel_gvt.h
+++ b/drivers/gpu/drm/i915/intel_gvt.h
@@ -32,6 +32,7 @@ void intel_gvt_cleanup(struct drm_i915_p
int intel_gvt_init_device(struct drm_i915_private *dev_priv);
void intel_gvt_clean_device(struct drm_i915_private *dev_priv);
int intel_gvt_init_host(void);
+void intel_gvt_sanitize_options(struct drm_i915_private *dev_priv);
#else
static inline int intel_gvt_init(struct drm_i915_private *dev_priv)
{
@@ -40,6 +41,10 @@ static inline int intel_gvt_init(struct
static inline void intel_gvt_cleanup(struct drm_i915_private *dev_priv)
{
}
+
+static inline void intel_gvt_sanitize_options(struct drm_i915_private *dev_priv)
+{
+}
#endif
#endif /* _INTEL_GVT_H_ */