[Intel-gfx] [PATCH 23/27] drm/i915/gem: Don't allow changing the VM on running contexts
kernel test robot
lkp at intel.com
Mon May 3 18:52:03 UTC 2021
Hi Jason,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on drm-intel/for-linux-next]
[also build test WARNING on drm-tip/drm-tip drm-exynos/exynos-drm-next next-20210503]
[cannot apply to tegra-drm/drm/tegra/for-next drm/drm-next v5.12]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Jason-Ekstrand/drm-i915-gem-ioctl-clean-ups-v5/20210504-000132
base: git://anongit.freedesktop.org/drm-intel for-linux-next
config: i386-randconfig-s002-20210503 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.3-341-g8af24329-dirty
# https://github.com/0day-ci/linux/commit/6af12f5ca765ecd59075344f3be4c4c0b68ef95e
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Jason-Ekstrand/drm-i915-gem-ioctl-clean-ups-v5/20210504-000132
git checkout 6af12f5ca765ecd59075344f3be4c4c0b68ef95e
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=i386
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>
sparse warnings: (new ones prefixed by >>)
drivers/gpu/drm/i915/gt/intel_reset.c:1329:5: sparse: sparse: context imbalance in 'intel_gt_reset_trylock' - different lock contexts for basic block
drivers/gpu/drm/i915/gt/intel_reset.c: note: in included file:
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: sparse: incompatible types in comparison expression (different address spaces):
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: struct i915_address_space [noderef] __rcu *
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: struct i915_address_space *
--
drivers/gpu/drm/i915/gt/intel_execlists_submission.c: note: in included file (through drivers/gpu/drm/i915/selftests/igt_spinner.h, drivers/gpu/drm/i915/gt/selftest_execlists.c):
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: sparse: incompatible types in comparison expression (different address spaces):
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: struct i915_address_space [noderef] __rcu *
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: struct i915_address_space *
--
drivers/gpu/drm/i915/gem/i915_gem_object.c: note: in included file:
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: sparse: incompatible types in comparison expression (different address spaces):
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: struct i915_address_space [noderef] __rcu *
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: struct i915_address_space *
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: sparse: incompatible types in comparison expression (different address spaces):
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: struct i915_address_space [noderef] __rcu *
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: struct i915_address_space *
drivers/gpu/drm/i915/gem/i915_gem_context.h:154:16: sparse: sparse: incompatible types in comparison expression (different address spaces):
drivers/gpu/drm/i915/gem/i915_gem_context.h:154:16: sparse: struct i915_address_space [noderef] __rcu *
drivers/gpu/drm/i915/gem/i915_gem_context.h:154:16: sparse: struct i915_address_space *
--
drivers/gpu/drm/i915/i915_gem_gtt.c: note: in included file (through drivers/gpu/drm/i915/selftests/i915_gem_gtt.c):
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: sparse: incompatible types in comparison expression (different address spaces):
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: struct i915_address_space [noderef] __rcu *
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: struct i915_address_space *
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: sparse: incompatible types in comparison expression (different address spaces):
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: struct i915_address_space [noderef] __rcu *
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: struct i915_address_space *
--
drivers/gpu/drm/i915/i915_vma.c: note: in included file:
>> drivers/gpu/drm/i915/selftests/i915_vma.c:42:24: sparse: sparse: incompatible types in comparison expression (different address spaces):
>> drivers/gpu/drm/i915/selftests/i915_vma.c:42:24: sparse: struct i915_address_space [noderef] __rcu *
>> drivers/gpu/drm/i915/selftests/i915_vma.c:42:24: sparse: struct i915_address_space *
drivers/gpu/drm/i915/i915_vma.c: note: in included file (through drivers/gpu/drm/i915/selftests/i915_vma.c):
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: sparse: incompatible types in comparison expression (different address spaces):
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: struct i915_address_space [noderef] __rcu *
>> drivers/gpu/drm/i915/gem/i915_gem_context.h:163:14: sparse: struct i915_address_space *
vim +163 drivers/gpu/drm/i915/gem/i915_gem_context.h
a4e7ccdac38ec8 Chris Wilson 2019-10-04 156
a4e7ccdac38ec8 Chris Wilson 2019-10-04 157 static inline struct i915_address_space *
a4e7ccdac38ec8 Chris Wilson 2019-10-04 158 i915_gem_context_get_vm_rcu(struct i915_gem_context *ctx)
a4e7ccdac38ec8 Chris Wilson 2019-10-04 159 {
a4e7ccdac38ec8 Chris Wilson 2019-10-04 160 struct i915_address_space *vm;
a4e7ccdac38ec8 Chris Wilson 2019-10-04 161
a4e7ccdac38ec8 Chris Wilson 2019-10-04 162 rcu_read_lock();
a4e7ccdac38ec8 Chris Wilson 2019-10-04 @163 vm = rcu_dereference(ctx->vm);
a4e7ccdac38ec8 Chris Wilson 2019-10-04 164 if (!vm)
a4e7ccdac38ec8 Chris Wilson 2019-10-04 165 vm = &ctx->i915->ggtt.vm;
a4e7ccdac38ec8 Chris Wilson 2019-10-04 166 vm = i915_vm_get(vm);
a4e7ccdac38ec8 Chris Wilson 2019-10-04 167 rcu_read_unlock();
a4e7ccdac38ec8 Chris Wilson 2019-10-04 168
a4e7ccdac38ec8 Chris Wilson 2019-10-04 169 return vm;
a4e7ccdac38ec8 Chris Wilson 2019-10-04 170 }
a4e7ccdac38ec8 Chris Wilson 2019-10-04 171
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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