drm/i915: Disable userptr pread/pwrite support.

Browse source

Userptr should not need the kernel for a userspace memcpy, userspace
needs to call memcpy directly.

Specifically, disable i915_gem_pwrite_ioctl() and i915_gem_pread_ioctl().

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210323155059.628690-12-maarten.lankhorst@linux.intel.com

...

This commit is contained in:

Maarten Lankhorst 2021-03-23 16:50:00 +01:00 • committed by Daniel Vetter

parent bfaae47db3

commit ae30af84ed

2 changed files with 25 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

20

drivers/gpu/drm/i915/gem/i915_gem_userptr.c

View file

5

drivers/gpu/drm/i915/i915_gem.c

View file