tree: git://anongit.freedesktop.org/drm/drm-tip drm-tip
head: f99065c68952afc90504325a19125d95e6b84abc
commit: a4e7ccdac38ec8335d9e4e2656c1a041c77feae1 [548/565] drm/i915: Move context management under GEM
reproduce:
# apt-get install sparse
# sparse version: v0.6.1-rc1-42-g38eda53-dirty
git checkout a4e7ccdac38ec8335d9e4e2656c1a041c77feae1
make ARCH=x86_64 allmodconfig
make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@xxxxxxxxx>
sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/i915/gem/i915_gem_context.c:813:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct i915_address_space *vm @@ got struct i915_addresstruct i915_address_space *vm @@
>> drivers/gpu/drm/i915/gem/i915_gem_context.c:813:29: sparse: expected struct i915_address_space *vm
>> drivers/gpu/drm/i915/gem/i915_gem_context.c:813:29: sparse: got struct i915_address_space [noderef] <asn:4> *vm
drivers/gpu/drm/i915/gem/i915_gem_context.c:1748:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct i915_gem_engines *e @@ got struct i915_gem_enstruct i915_gem_engines *e @@
drivers/gpu/drm/i915/gem/i915_gem_context.c:1748:25: sparse: expected struct i915_gem_engines *e
drivers/gpu/drm/i915/gem/i915_gem_context.c:1748:25: sparse: got struct i915_gem_engines [noderef] <asn:4> *engines
drivers/gpu/drm/i915/gem/i915_gem_context.c:1783:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct i915_gem_engines *clone @@ got struct i915_gem_enstruct i915_gem_engines *clone @@
drivers/gpu/drm/i915/gem/i915_gem_context.c:1783:15: sparse: expected struct i915_gem_engines *clone
drivers/gpu/drm/i915/gem/i915_gem_context.c:1783:15: sparse: got struct i915_gem_engines [noderef] <asn:4> *engines
>> drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c:773:51: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct i915_address_space *[assigned] vm @@ got struct struct i915_address_space *[assigned] vm @@
>> drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c:773:51: sparse: expected struct i915_address_space *[assigned] vm
>> drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c:773:51: sparse: got struct i915_address_space [noderef] <asn:4> *vm
>> drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c:780:64: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct i915_address_space *vm @@ got struct i915_addresstruct i915_address_space *vm @@
>> drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c:780:64: sparse: expected struct i915_address_space *vm
drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c:780:64: sparse: got struct i915_address_space [noderef] <asn:4> *vm
>> drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c:1694:25: sparse: sparse: dereference of noderef expression
vim +813 drivers/gpu/drm/i915/gem/i915_gem_context.c
85fddf0b002719 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-09 801
cde5f7edd511b1 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-30 802 static int get_ppgtt(struct drm_i915_file_private *file_priv,
cde5f7edd511b1 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-30 803 struct i915_gem_context *ctx,
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 804 struct drm_i915_gem_context_param *args)
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 805 {
e568ac3874be7d drivers/gpu/drm/i915/gem/i915_gem_context.c Chris Wilson 2019-06-11 806 struct i915_address_space *vm;
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 807 int ret;
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 808
a4e7ccdac38ec8 drivers/gpu/drm/i915/gem/i915_gem_context.c Chris Wilson 2019-10-04 809 if (!rcu_access_pointer(ctx->vm))
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 810 return -ENODEV;
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 811
a4e7ccdac38ec8 drivers/gpu/drm/i915/gem/i915_gem_context.c Chris Wilson 2019-10-04 812 rcu_read_lock();
e568ac3874be7d drivers/gpu/drm/i915/gem/i915_gem_context.c Chris Wilson 2019-06-11 @813 vm = i915_vm_get(ctx->vm);
a4e7ccdac38ec8 drivers/gpu/drm/i915/gem/i915_gem_context.c Chris Wilson 2019-10-04 814 rcu_read_unlock();
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 815
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 816 ret = mutex_lock_interruptible(&file_priv->vm_idr_lock);
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 817 if (ret)
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 818 goto err_put;
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 819
e568ac3874be7d drivers/gpu/drm/i915/gem/i915_gem_context.c Chris Wilson 2019-06-11 820 ret = idr_alloc(&file_priv->vm_idr, vm, 0, 0, GFP_KERNEL);
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 821 GEM_BUG_ON(!ret);
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 822 if (ret < 0)
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 823 goto err_unlock;
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 824
2850748ef8763a drivers/gpu/drm/i915/gem/i915_gem_context.c Chris Wilson 2019-10-04 825 i915_vm_open(vm);
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 826
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 827 args->size = 0;
1f2b4a7edbc3b8 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-04-25 828 args->value = ret;
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 829
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 830 ret = 0;
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 831 err_unlock:
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 832 mutex_unlock(&file_priv->vm_idr_lock);
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 833 err_put:
e568ac3874be7d drivers/gpu/drm/i915/gem/i915_gem_context.c Chris Wilson 2019-06-11 834 i915_vm_put(vm);
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 835 return ret;
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 836 }
e0695db7298ec2 drivers/gpu/drm/i915/i915_gem_context.c Chris Wilson 2019-03-22 837
:::::: The code at line 813 was first introduced by commit
:::::: e568ac3874be7dcef3da0cc3bd6b91ca9dd14aa0 drm/i915: Pull kref into i915_address_space
:::::: TO: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
:::::: CC: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
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