diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2022-02-05 08:58:25 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-02-05 08:58:25 +0300 |
| commit | 7e6a6b400db8048bd1c06e497e338388413cf5bc (patch) | |
| tree | 794f9fcdc7a1bfb9a2812e90fc76809d810203b2 /drivers/gpu/drm/i915/gem/i915_gem_busy.c | |
| parent | 6e37ec8825a113bc2dd1b280be10e5ac6eb4f6b1 (diff) | |
| parent | 1dd498e5e26ad71e3e9130daf72cfb6a693fee03 (diff) | |
| download | linux-7e6a6b400db8048bd1c06e497e338388413cf5bc.tar.xz | |
Merge tag 'kvmarm-fixes-5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 5.17, take #2
- A couple of fixes when handling an exception while a SError has been
delivered
- Workaround for Cortex-A510's single-step[ erratum
Diffstat (limited to 'drivers/gpu/drm/i915/gem/i915_gem_busy.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_busy.c | 35 |
1 files changed, 14 insertions, 21 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_busy.c b/drivers/gpu/drm/i915/gem/i915_gem_busy.c index 7358bebef15c..470fdfd61a0f 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_busy.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_busy.c @@ -115,8 +115,8 @@ i915_gem_busy_ioctl(struct drm_device *dev, void *data, { struct drm_i915_gem_busy *args = data; struct drm_i915_gem_object *obj; - struct dma_resv_list *list; - unsigned int seq; + struct dma_resv_iter cursor; + struct dma_fence *fence; int err; err = -ENOENT; @@ -142,27 +142,20 @@ i915_gem_busy_ioctl(struct drm_device *dev, void *data, * to report the overall busyness. This is what the wait-ioctl does. * */ -retry: - seq = raw_read_seqcount(&obj->base.resv->seq); - - /* Translate the exclusive fence to the READ *and* WRITE engine */ - args->busy = busy_check_writer(dma_resv_excl_fence(obj->base.resv)); - - /* Translate shared fences to READ set of engines */ - list = dma_resv_shared_list(obj->base.resv); - if (list) { - unsigned int shared_count = list->shared_count, i; - - for (i = 0; i < shared_count; ++i) { - struct dma_fence *fence = - rcu_dereference(list->shared[i]); - + args->busy = 0; + dma_resv_iter_begin(&cursor, obj->base.resv, true); + dma_resv_for_each_fence_unlocked(&cursor, fence) { + if (dma_resv_iter_is_restarted(&cursor)) + args->busy = 0; + + if (dma_resv_iter_is_exclusive(&cursor)) + /* Translate the exclusive fence to the READ *and* WRITE engine */ + args->busy |= busy_check_writer(fence); + else + /* Translate shared fences to READ set of engines */ args->busy |= busy_check_reader(fence); - } } - - if (args->busy && read_seqcount_retry(&obj->base.resv->seq, seq)) - goto retry; + dma_resv_iter_end(&cursor); err = 0; out: |