[PATCH v4 13/17] drm/i915/vm_bind: Update i915_vma_verify_bind_complete()
Matthew Auld
matthew.auld at intel.com
Wed Oct 19 16:07:31 UTC 2022
On 18/10/2022 08:16, Niranjana Vishwanathapura wrote:
> Ensure i915_vma_verify_bind_complete() handles case where bind
> is not initiated. Also make it non static, add documentation
> and move it out of CONFIG_DRM_I915_DEBUG_GEM.
>
> Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura at intel.com>
> Signed-off-by: Andi Shyti <andi.shyti at linux.intel.com>
> ---
> drivers/gpu/drm/i915/i915_vma.c | 16 +++++++++++-----
> drivers/gpu/drm/i915/i915_vma.h | 1 +
> 2 files changed, 12 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
> index eaa13e9ba966..4975fc662c86 100644
> --- a/drivers/gpu/drm/i915/i915_vma.c
> +++ b/drivers/gpu/drm/i915/i915_vma.c
> @@ -439,12 +439,21 @@ int i915_vma_sync(struct i915_vma *vma)
> return i915_vm_sync(vma->vm);
> }
>
> -#if IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM)
> -static int i915_vma_verify_bind_complete(struct i915_vma *vma)
> +/**
> + * i915_vma_verify_bind_complete() - Check for the bind completion of the vma
> + * @vma: vma to check for bind completion
Maybe mention the locking since this is now more than just DEBUG_GEM
stuff. I assume we need the object lock or otherwise some guarantee that
the vma is pinned?
Reviewed-by: Matthew Auld <matthew.auld at intel.com>
> + *
> + * Returns: 0 if the vma bind is completed. Error code otherwise.
> + */
> +int i915_vma_verify_bind_complete(struct i915_vma *vma)
> {
> struct dma_fence *fence = i915_active_fence_get(&vma->active.excl);
> int err;
>
> + /* Ensure vma bind is initiated */
> + if (!i915_vma_is_bound(vma, I915_VMA_BIND_MASK))
> + return -EINVAL;
> +
> if (!fence)
> return 0;
>
> @@ -457,9 +466,6 @@ static int i915_vma_verify_bind_complete(struct i915_vma *vma)
>
> return err;
> }
> -#else
> -#define i915_vma_verify_bind_complete(_vma) 0
> -#endif
>
> I915_SELFTEST_EXPORT void
> i915_vma_resource_init_from_vma(struct i915_vma_resource *vma_res,
> diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h
> index 1cadbf8fdedf..04770f8ba815 100644
> --- a/drivers/gpu/drm/i915/i915_vma.h
> +++ b/drivers/gpu/drm/i915/i915_vma.h
> @@ -440,6 +440,7 @@ void i915_vma_make_purgeable(struct i915_vma *vma);
>
> int i915_vma_wait_for_bind(struct i915_vma *vma);
> int i915_vma_sync(struct i915_vma *vma);
> +int i915_vma_verify_bind_complete(struct i915_vma *vma);
>
> /**
> * i915_vma_get_current_resource - Get the current resource of the vma
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