Changing the vm from a finalized gem ctx is no longer possible, which
means we don't have to check for that anymore.
I was pondering whether to keep the check as a WARN_ON, but things go
boom real bad real fast if the vm of a vma is wrong. Plus we'd need to
also get the ggtt vm for !full-ppgtt platforms. Ditching it all seemed
like a better idea.
References: ccbc1b97948a ("drm/i915/gem: Don't allow changing the VM on running
contexts (v4)")
Signed-off-by: Daniel Vetter <[email protected]>
Cc: Jon Bloomfield <[email protected]>
Cc: Chris Wilson <[email protected]>
Cc: Maarten Lankhorst <[email protected]>
Cc: Joonas Lahtinen <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: "Thomas Hellström" <[email protected]>
Cc: Matthew Auld <[email protected]>
Cc: Lionel Landwerlin <[email protected]>
Cc: Dave Airlie <[email protected]>
Cc: Jason Ekstrand <[email protected]>
---
drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index 538d9d2e52b7..69e47b97d786 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -775,11 +775,7 @@ static int __eb_add_lut(struct i915_execbuffer *eb,
/* Check that the context hasn't been closed in the meantime */
err = -EINTR;
if (!mutex_lock_interruptible(&ctx->lut_mutex)) {
- struct i915_address_space *vm = rcu_access_pointer(ctx->vm);
-
- if (unlikely(vm && vma->vm != vm))
- err = -EAGAIN; /* user racing with ctx set-vm */
- else if (likely(!i915_gem_context_is_closed(ctx)))
+ if (likely(!i915_gem_context_is_closed(ctx)))
err = radix_tree_insert(&ctx->handles_vma, handle, vma);
else
err = -ENOENT;
--
2.32.0
