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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-03-22 09:23:23 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-03-22 13:12:32 +0000 |
| commit | e0695db7298ec2181d38bd3bfc5d0ff7a46f96f3 (patch) | |
| tree | 452552b70582f98b48bb9936385f195160c35d1a /drivers/gpu/drm/i915/i915_gem_gtt.c | |
| parent | 9d1305ef80b95dde0337106ed8b826604e2155ad (diff) | |
| download | linux-e0695db7298ec2181d38bd3bfc5d0ff7a46f96f3.tar.bz2 | |
drm/i915: Create/destroy VM (ppGTT) for use with contexts
In preparation to making the ppGTT binding for a context explicit (to
facilitate reusing the same ppGTT between different contexts), allow the
user to create and destroy named ppGTT.
v2: Replace global barrier for swapping over the ppgtt and tlbs with a
local context barrier (Tvrtko)
v3: serialise with struct_mutex; it's lazy but required dammit
v4: Rewrite igt_ctx_shared_exec to be more different (aimed to be more
similarly, turned out different!)
v5: Fix up test unwind for aliasing-ppgtt (snb)
v6: Tighten language for uapi struct drm_i915_gem_vm_control.
v7: Patch the context image for runtime ppgtt switching!
Testcase: igt/gem_vm_create
Testcase: igt/gem_ctx_param/vm
Testcase: igt/gem_ctx_clone/vm
Testcase: igt/gem_ctx_shared
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190322092325.5883-2-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 | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index b9e0e3a00223..736c845eb77f 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -1937,6 +1937,8 @@ int gen6_ppgtt_pin(struct i915_hw_ppgtt *base) struct gen6_hw_ppgtt *ppgtt = to_gen6_ppgtt(base); int err; + GEM_BUG_ON(ppgtt->base.vm.closed); + /* * Workaround the limited maximum vma->pin_count and the aliasing_ppgtt * which will be pinned into every active context. @@ -1975,6 +1977,17 @@ void gen6_ppgtt_unpin(struct i915_hw_ppgtt *base) i915_vma_unpin(ppgtt->vma); } +void gen6_ppgtt_unpin_all(struct i915_hw_ppgtt *base) +{ + struct gen6_hw_ppgtt *ppgtt = to_gen6_ppgtt(base); + + if (!ppgtt->pin_count) + return; + + ppgtt->pin_count = 0; + i915_vma_unpin(ppgtt->vma); +} + static struct i915_hw_ppgtt *gen6_ppgtt_create(struct drm_i915_private *i915) { struct i915_ggtt * const ggtt = &i915->ggtt; @@ -2082,12 +2095,6 @@ i915_ppgtt_create(struct drm_i915_private *i915) return ppgtt; } -void i915_ppgtt_close(struct i915_address_space *vm) -{ - GEM_BUG_ON(vm->closed); - vm->closed = true; -} - static void ppgtt_destroy_vma(struct i915_address_space *vm) { struct list_head *phases[] = { |