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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-12-21 17:03:24 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-12-21 17:37:10 +0100 |
| commit | e6ba76480299a0d77c51d846f7467b1673aad25b (patch) | |
| tree | 24bad1dcbefe236853b13988bf63341ddd5e12e3 /drivers/gpu/drm/i915/i915_gem_gtt.c | |
| parent | drm/i915/selftests: Setup engine->retire for mock_engine (diff) | |
| download | linux-e6ba76480299a0d77c51d846f7467b1673aad25b.tar.xz linux-e6ba76480299a0d77c51d846f7467b1673aad25b.zip | |
drm/i915: Remove i915->kernel_context
Allocate only an internal intel_context for the kernel_context, forgoing
a global GEM context for internal use as we only require a separate
address space (for our own protection).
Now having weaned GT from requiring ce->gem_context, we can stop
referencing it entirely. This also means we no longer have to create random
and unnecessary GEM contexts for internal use.
GEM contexts are now entirely for tracking GEM clients, and intel_context
the execution environment on the GPU.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Andi Shyti <andi.shyti@intel.com>
Acked-by: Andi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191221160324.1073045-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_gtt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index d9a2f58a620a..2ad2fc5efdbf 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -1375,12 +1375,8 @@ static int gen8_init_scratch(struct i915_address_space *vm) * If everybody agrees to not to write into the scratch page, * we can reuse it for all vm, keeping contexts and processes separate. */ - if (vm->has_read_only && - vm->i915->kernel_context && - vm->i915->kernel_context->vm) { - struct i915_address_space *clone = - rcu_dereference_protected(vm->i915->kernel_context->vm, - true); /* static */ + if (vm->has_read_only && vm->gt->vm && !i915_is_ggtt(vm->gt->vm)) { + struct i915_address_space *clone = vm->gt->vm; GEM_BUG_ON(!clone->has_read_only); |