On Sat, 11 Nov 2017 01:06:38 +0100, Sujaritha Sundaresan
<sujaritha.sundaresan@xxxxxxxxx> wrote:
Placing the call to intel_guc_init after i915_gem_contexts_init,
based on the dependency within i915_gem_init.
Will move the function if required, depending on the review
comments.
Suggested by: Sagar Arun Kamble <sagar.a.kamble@xxxxxxxxx>
Signed-off-by: Sujaritha Sundaresan <sujaritha.sundaresan@xxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
Cc: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
Cc: Oscar Mateo <oscar.mateo@xxxxxxxxx>
Cc: Sagar Arun Kamble <sagar.a.kamble@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem.c | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_gem.c
b/drivers/gpu/drm/i915/i915_gem.c
index 889ae88..c877a5d 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -36,6 +36,7 @@
#include "intel_frontbuffer.h"
#include "intel_mocs.h"
#include "i915_gemfs.h"
+#include "intel_guc.h"
#include <linux/dma-fence-array.h>
#include <linux/kthread.h>
#include <linux/reservation.h>
@@ -4972,6 +4973,7 @@ bool intel_sanitize_semaphores(struct
drm_i915_private *dev_priv, int value)
int i915_gem_init(struct drm_i915_private *dev_priv)
{
+ struct intel_guc *guc = &dev_priv->guc;
int ret;
mutex_lock(&dev_priv->drm.struct_mutex);
@@ -5015,6 +5017,18 @@ int i915_gem_init(struct drm_i915_private
*dev_priv)
if (ret)
goto out_unlock;
+ ret = intel_guc_init(guc);
+
+ if (i915_modparams.enable_guc) {
+ /*
+ * This is stuff we need to have available at fw load time
+ * if we are planning to enable submission later
+ */
+ ret = intel_guc_init(guc);
+ if (ret)
+ goto err_shared;
+ }
+
Why there are two calls to guc_init ?
Also note that this approach breaks previous idea to hide GuC/HuC internals
to the rest of the driver by exposing only high level "uc" functions.
ret = intel_engines_init(dev_priv);
if (ret)
goto out_unlock;
@@ -5035,7 +5049,8 @@ int i915_gem_init(struct drm_i915_private
*dev_priv)
out_unlock:
intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
mutex_unlock(&dev_priv->drm.struct_mutex);
-
+err_shared:
+ intel_guc_fini(guc);
return ret;
}
@@ -5192,6 +5207,7 @@ void i915_gem_load_cleanup(struct drm_i915_private
*dev_priv)
rcu_barrier();
i915_gemfs_fini(dev_priv);
+ intel_guc_fini(&dev_priv->guc);
}
int i915_gem_freeze(struct drm_i915_private *dev_priv)
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