diff options
| author | Matthew Auld <matthew.auld@intel.com> | 2022-01-06 17:49:10 +0000 |
|---|---|---|
| committer | Matthew Auld <matthew.auld@intel.com> | 2022-01-10 11:11:32 +0000 |
| commit | ab4911b7d411ab2ef3b38322178b9138e156c393 (patch) | |
| tree | c228fb862b590e53fd8fc62ebe68f706961c3696 | |
| parent | 903e0387270eef14a711c0feb23b7bf62d2480df (diff) | |
| download | linux-stable-ab4911b7d411ab2ef3b38322178b9138e156c393.tar.gz | |
drm/i915/ttm: ensure we unmap when purging
Purging can happen during swapping out, or directly invoked with the
madvise ioctl. In such cases this doesn't involve a ttm move, which
skips umapping the object.
v2(Thomas):
- add ttm_truncate helper, and just call into i915_ttm_move_notify() to
handle the unmapping step
Fixes: 213d50927763 ("drm/i915/ttm: Introduce a TTM i915 gem object backend")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220106174910.280616-4-matthew.auld@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c index d6d6878d2414..84cae740b4a5 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c @@ -554,6 +554,20 @@ i915_ttm_resource_get_st(struct drm_i915_gem_object *obj, return intel_region_ttm_resource_to_rsgt(obj->mm.region, res); } +static int i915_ttm_truncate(struct drm_i915_gem_object *obj) +{ + struct ttm_buffer_object *bo = i915_gem_to_ttm(obj); + int err; + + WARN_ON_ONCE(obj->mm.madv == I915_MADV_WILLNEED); + + err = i915_ttm_move_notify(bo); + if (err) + return err; + + return i915_ttm_purge(obj); +} + static void i915_ttm_swap_notify(struct ttm_buffer_object *bo) { struct drm_i915_gem_object *obj = i915_ttm_to_gem(bo); @@ -960,7 +974,7 @@ static const struct drm_i915_gem_object_ops i915_gem_ttm_obj_ops = { .get_pages = i915_ttm_get_pages, .put_pages = i915_ttm_put_pages, - .truncate = i915_ttm_purge, + .truncate = i915_ttm_truncate, .shrink = i915_ttm_shrink, .adjust_lru = i915_ttm_adjust_lru, |