diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2020-03-31 17:21:50 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-03-31 22:40:39 +0100 |
| commit | 97a37c919f6262fe75afc4a4eb838093bf18b032 (patch) | |
| tree | 0f2de92c5aa80091ecff2fc789a1ff06b0ea2a3e /drivers/gpu/drm | |
| parent | 4d6c18590870fbac1e65dde5e01e621c8e0ca096 (diff) | |
drm/i915/gem: Ignore readonly failures when updating relocs
If the user passes in a readonly reloc[], by the time we notice we have
already committed to modifying the execobjects, or have indeed done so
already. Reporting the failure just compounds the issue as we have no
second pass to fall back to anymore.
"Be damned if you do, and damned if you don't."
Testcase: igt/gem_exec_reloc/readonly
Fixes: 7dc8f1143778 ("drm/i915/gem: Drop relocation slowpath")
References: fddcd00a49e9 ("drm/i915: Force the slow path after a user-write error")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200331162150.3635-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c index cda35e6dfc44..908fb877f875 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c @@ -1540,10 +1540,8 @@ static int eb_relocate_vma(struct i915_execbuffer *eb, struct eb_vma *ev) * can read from this userspace address. */ offset = gen8_canonical_addr(offset & ~UPDATE); - if (unlikely(__put_user(offset, &urelocs[r-stack].presumed_offset))) { - remain = -EFAULT; - goto out; - } + __put_user(offset, + &urelocs[r - stack].presumed_offset); } } while (r++, --count); urelocs += ARRAY_SIZE(stack); |