tree: git://anongit.freedesktop.org/drm-intel drm-intel-gt-next
head: ca06f93638362bf83584cdf33897822bf1578cf9
commit: 0eee9977f9d3d8f1e40175dada55b3d00121ac79 [29/30] drm/i915/gem: Roll all of context creation together
config: x86_64-randconfig-s022-20210715 (attached as .config)
compiler: gcc-10 (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.3-341-g8af24329-dirty
git remote add drm-intel git://anongit.freedesktop.org/drm-intel
git fetch --no-tags drm-intel drm-intel-gt-next
git checkout 0eee9977f9d3d8f1e40175dada55b3d00121ac79
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
sparse warnings: (new ones prefixed by >>)
drivers/gpu/drm/i915/gem/i915_gem_context.c:1412:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct i915_address_space *vm @@ got struct i915_address_space [noderef] __rcu *vm @@
drivers/gpu/drm/i915/gem/i915_gem_context.c:1412:34: sparse: expected struct i915_address_space *vm
drivers/gpu/drm/i915/gem/i915_gem_context.c:1412:34: sparse: got struct i915_address_space [noderef] __rcu *vm
drivers/gpu/drm/i915/gem/i915_gem_context.c: note: in included file:
>> drivers/gpu/drm/i915/gem/selftests/mock_context.c:43:25: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct i915_address_space [noderef] __rcu *vm @@ got struct i915_address_space * @@
drivers/gpu/drm/i915/gem/selftests/mock_context.c:43:25: sparse: expected struct i915_address_space [noderef] __rcu *vm
drivers/gpu/drm/i915/gem/selftests/mock_context.c:43:25: sparse: got struct i915_address_space *
>> drivers/gpu/drm/i915/gem/selftests/mock_context.c:60:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct i915_address_space *vm @@ got struct i915_address_space [noderef] __rcu *vm @@
drivers/gpu/drm/i915/gem/selftests/mock_context.c:60:34: sparse: expected struct i915_address_space *vm
drivers/gpu/drm/i915/gem/selftests/mock_context.c:60:34: sparse: got struct i915_address_space [noderef] __rcu *vm
vim +43 drivers/gpu/drm/i915/gem/selftests/mock_context.c
10
11 struct i915_gem_context *
12 mock_context(struct drm_i915_private *i915,
13 const char *name)
14 {
15 struct i915_gem_context *ctx;
16 struct i915_gem_engines *e;
17 struct intel_sseu null_sseu = {};
18
19 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
20 if (!ctx)
21 return NULL;
22
23 kref_init(&ctx->ref);
24 INIT_LIST_HEAD(&ctx->link);
25 ctx->i915 = i915;
26
27 mutex_init(&ctx->mutex);
28
29 spin_lock_init(&ctx->stale.lock);
30 INIT_LIST_HEAD(&ctx->stale.engines);
31
32 i915_gem_context_set_persistence(ctx);
33
34 if (name) {
35 struct i915_ppgtt *ppgtt;
36
37 strncpy(ctx->name, name, sizeof(ctx->name) - 1);
38
39 ppgtt = mock_ppgtt(i915, name);
40 if (!ppgtt)
41 goto err_free;
42
> 43 ctx->vm = i915_vm_open(&ppgtt->vm);
44 i915_vm_put(&ppgtt->vm);
45 }
46
47 mutex_init(&ctx->engines_mutex);
48 e = default_engines(ctx, null_sseu);
49 if (IS_ERR(e))
50 goto err_vm;
51 RCU_INIT_POINTER(ctx->engines, e);
52
53 INIT_RADIX_TREE(&ctx->handles_vma, GFP_KERNEL);
54 mutex_init(&ctx->lut_mutex);
55
56 return ctx;
57
58 err_vm:
59 if (ctx->vm)
> 60 i915_vm_close(ctx->vm);
61 err_free:
62 kfree(ctx);
63 return NULL;
64 }
65
---
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Attachment:
.config.gz
Description: application/gzip
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