diff options
| author | Matthew Auld <matthew.auld@intel.com> | 2020-11-05 16:49:33 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-11-05 20:23:50 +0100 |
| commit | 0049b688459b846f819b6e51c24cd0781fcfde41 (patch) | |
| tree | 0cb5effdd50ade8b541f1dc96abfd9d493332d5a /drivers/gpu/drm/i915/i915_gem.c | |
| parent | drm/i915/gem: Perform all asynchronous waits prior to marking payload start (diff) | |
| download | linux-0049b688459b846f819b6e51c24cd0781fcfde41.tar.xz linux-0049b688459b846f819b6e51c24cd0781fcfde41.zip | |
drm/i915/gem: Allow backends to override pread implementation
As there are more and more complicated interactions between the different
backing stores and userspace, push the control into the backends rather
than accumulate them all inside the ioctl handlers.
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20201105154934.16022-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index bb0c12975f38..d58fe1ddc3e1 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -527,6 +527,12 @@ i915_gem_pread_ioctl(struct drm_device *dev, void *data, trace_i915_gem_object_pread(obj, args->offset, args->size); + ret = -ENODEV; + if (obj->ops->pread) + ret = obj->ops->pread(obj, args); + if (ret != -ENODEV) + goto out; + ret = i915_gem_object_wait(obj, I915_WAIT_INTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT); |