xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/i915/gem: Allow backends to override pread implementation

Browse Source 
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
(cherry picked from commit 0049b688459b846f819b6e51c24cd0781fcfde41)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Matthew Auld
2020-11-05 15:49:33 +00:00
committed by Rodrigo Vivi
parent f8394f232b
commit 0a1db6f084
2 changed files with 8 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/i915/i915_gem.c
View File

@@ -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);