[PATCH v6 17/20] drm/i915/vm_bind: Limit vm_bind mode to non-recoverable contexts

[Niranjana Vishwanathapura]

Only support vm_bind mode with non-recoverable contexts.
With new vm_bind mode with eb3 submission path, we need not
support older recoverable contexts.

Reviewed-by: Matthew Auld <matthew.auld at intel.com>
Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura at intel.com>
---
 drivers/gpu/drm/i915/gem/i915_gem_context.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
index 1630a52f387d..899079d602bc 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
@@ -1617,6 +1617,12 @@ i915_gem_create_context(struct drm_i915_private *i915,
 	INIT_LIST_HEAD(&ctx->stale.engines);
 
 	if (pc->vm) {
+		/* Only non-recoverable contexts are allowed in vm_bind mode */
+		if (i915_gem_vm_is_vm_bind_mode(pc->vm) &&
+		    (pc->user_flags & BIT(UCONTEXT_RECOVERABLE))) {
+			err = -EINVAL;
+			goto err_ctx;
+		}
 		vm = i915_vm_get(pc->vm);
 	} else if (HAS_FULL_PPGTT(i915)) {
 		struct i915_ppgtt *ppgtt;
-- 
2.21.0.rc0.32.g243a4c7e27