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authorChris Wilson <[email protected]>2019-02-17 13:53:55 +0000
committerKenneth Graunke <[email protected]>2019-05-08 17:21:07 -0700
commit8b7e19dbc556789ffa1ef364c2ce5b7a3f73b3e9 (patch)
tree65a18049be4bff7c53fd1bf1f1b26f0919238d7b /include
parent0a42d5b98bc3083e20475eb1ecea20f9b876269d (diff)
drm-uapi: Update i915_drm.h for I915_CONTEXT_PARAM_RECOVERABLE
Pull i915_drm.h to include kernel commit ba4fda620a5f7db521aa9e0262cf49854c1b1d9c Author: Chris Wilson <[email protected]> Date: Mon Feb 18 10:58:21 2019 +0000 drm/i915: Optionally disable automatic recovery after a GPU reset for improved resilience in handling GPU hangs.
Diffstat (limited to 'include')
-rw-r--r--include/drm-uapi/i915_drm.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/drm-uapi/i915_drm.h b/include/drm-uapi/i915_drm.h
index d2792ab3640..43fb8ede2fe 100644
--- a/include/drm-uapi/i915_drm.h
+++ b/include/drm-uapi/i915_drm.h
@@ -1491,6 +1491,26 @@ struct drm_i915_gem_context_param {
* drm_i915_gem_context_param_sseu.
*/
#define I915_CONTEXT_PARAM_SSEU 0x7
+
+/*
+ * Not all clients may want to attempt automatic recover of a context after
+ * a hang (for example, some clients may only submit very small incremental
+ * batches relying on known logical state of previous batches which will never
+ * recover correctly and each attempt will hang), and so would prefer that
+ * the context is forever banned instead.
+ *
+ * If set to false (0), after a reset, subsequent (and in flight) rendering
+ * from this context is discarded, and the client will need to create a new
+ * context to use instead.
+ *
+ * If set to true (1), the kernel will automatically attempt to recover the
+ * context by skipping the hanging batch and executing the next batch starting
+ * from the default context state (discarding the incomplete logical context
+ * state lost due to the reset).
+ *
+ * On creation, all new contexts are marked as recoverable.
+ */
+#define I915_CONTEXT_PARAM_RECOVERABLE 0x8
__u64 value;
};