From: "Christian König" <ckoenig.leichtzumerken@gmail.com> To: linaro-mm-sig@lists.linaro.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, intel-gfx@lists.freedesktop.org Cc: daniel@ffwll.ch Subject: [PATCH 02/26] dma-buf: add dma_resv_for_each_fence Date: Fri, 17 Sep 2021 14:34:49 +0200 [thread overview] Message-ID: <20210917123513.1106-3-christian.koenig@amd.com> (raw) In-Reply-To: <20210917123513.1106-1-christian.koenig@amd.com> A simpler version of the iterator to be used when the dma_resv object is locked. Signed-off-by: Christian König <christian.koenig@amd.com> --- drivers/dma-buf/dma-resv.c | 33 +++++++++++++++++++++++++++++++++ include/linux/dma-resv.h | 17 +++++++++++++++++ 2 files changed, 50 insertions(+) diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c index 3e77cad2c9d4..a3c79a99fb44 100644 --- a/drivers/dma-buf/dma-resv.c +++ b/drivers/dma-buf/dma-resv.c @@ -384,6 +384,39 @@ struct dma_fence *dma_resv_iter_walk_unlocked(struct dma_resv_iter *cursor, } EXPORT_SYMBOL_GPL(dma_resv_iter_walk_unlocked); +/** + * dma_resv_iter_walk - walk over fences in a dma_resv obj + * @cursor: cursor to record the current position + * @first: if we should start over + * + * Return all the fences in the dma_resv object while holding the + * dma_resv::lock. + */ +struct dma_fence *dma_resv_iter_walk(struct dma_resv_iter *cursor, bool first) +{ + dma_resv_assert_held(cursor->obj); + + cursor->is_first = first; + if (first) { + struct dma_fence *fence; + + cursor->index = -1; + cursor->fences = dma_resv_shared_list(cursor->obj); + + fence = dma_resv_excl_fence(cursor->obj); + if (fence) + return fence; + } + + if (!cursor->all_fences || !cursor->fences || + ++cursor->index >= cursor->fences->shared_count) + return NULL; + + return rcu_dereference_protected(cursor->fences->shared[cursor->index], + dma_resv_held(cursor->obj)); +} +EXPORT_SYMBOL_GPL(dma_resv_iter_walk); + /** * dma_resv_copy_fences - Copy all fences from src to dst. * @dst: the destination reservation object diff --git a/include/linux/dma-resv.h b/include/linux/dma-resv.h index 693d16117153..8c968f8c9d33 100644 --- a/include/linux/dma-resv.h +++ b/include/linux/dma-resv.h @@ -179,6 +179,7 @@ struct dma_resv_iter { struct dma_fence *dma_resv_iter_walk_unlocked(struct dma_resv_iter *cursor, bool first); +struct dma_fence *dma_resv_iter_walk(struct dma_resv_iter *cursor, bool first); /** * dma_resv_iter_begin - initialize a dma_resv_iter object @@ -233,6 +234,22 @@ static inline bool dma_resv_iter_is_exclusive(struct dma_resv_iter *cursor) for (fence = dma_resv_iter_walk_unlocked(cursor, true); \ fence; fence = dma_resv_iter_walk_unlocked(cursor, false)) +/** + * dma_resv_for_each_fence - fence iterator + * @cursor: a struct dma_resv_iter pointer + * @obj: a dma_resv object pointer + * @all_fences: true if all fences should be returned + * @fence: the current fence + * + * Iterate over the fences in a struct dma_resv object while holding the + * dma_resv::lock. @all_fences controls if the shared fences are returned as + * well. The cursor initialisation is part of the iterator. + */ +#define dma_resv_for_each_fence(cursor, obj, all_fences, fence) \ + for (dma_resv_iter_begin(cursor, obj, all_fences), \ + fence = dma_resv_iter_walk(cursor, true); fence; \ + fence = dma_resv_iter_walk(cursor, false)) + #define dma_resv_held(obj) lockdep_is_held(&(obj)->lock.base) #define dma_resv_assert_held(obj) lockdep_assert_held(&(obj)->lock.base) -- 2.25.1
WARNING: multiple messages have this Message-ID
From: "Christian König" <ckoenig.leichtzumerken@gmail.com> To: linaro-mm-sig@lists.linaro.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, intel-gfx@lists.freedesktop.org Cc: daniel@ffwll.ch Subject: [Intel-gfx] [PATCH 02/26] dma-buf: add dma_resv_for_each_fence Date: Fri, 17 Sep 2021 14:34:49 +0200 [thread overview] Message-ID: <20210917123513.1106-3-christian.koenig@amd.com> (raw) In-Reply-To: <20210917123513.1106-1-christian.koenig@amd.com> A simpler version of the iterator to be used when the dma_resv object is locked. Signed-off-by: Christian König <christian.koenig@amd.com> --- drivers/dma-buf/dma-resv.c | 33 +++++++++++++++++++++++++++++++++ include/linux/dma-resv.h | 17 +++++++++++++++++ 2 files changed, 50 insertions(+) diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c index 3e77cad2c9d4..a3c79a99fb44 100644 --- a/drivers/dma-buf/dma-resv.c +++ b/drivers/dma-buf/dma-resv.c @@ -384,6 +384,39 @@ struct dma_fence *dma_resv_iter_walk_unlocked(struct dma_resv_iter *cursor, } EXPORT_SYMBOL_GPL(dma_resv_iter_walk_unlocked); +/** + * dma_resv_iter_walk - walk over fences in a dma_resv obj + * @cursor: cursor to record the current position + * @first: if we should start over + * + * Return all the fences in the dma_resv object while holding the + * dma_resv::lock. + */ +struct dma_fence *dma_resv_iter_walk(struct dma_resv_iter *cursor, bool first) +{ + dma_resv_assert_held(cursor->obj); + + cursor->is_first = first; + if (first) { + struct dma_fence *fence; + + cursor->index = -1; + cursor->fences = dma_resv_shared_list(cursor->obj); + + fence = dma_resv_excl_fence(cursor->obj); + if (fence) + return fence; + } + + if (!cursor->all_fences || !cursor->fences || + ++cursor->index >= cursor->fences->shared_count) + return NULL; + + return rcu_dereference_protected(cursor->fences->shared[cursor->index], + dma_resv_held(cursor->obj)); +} +EXPORT_SYMBOL_GPL(dma_resv_iter_walk); + /** * dma_resv_copy_fences - Copy all fences from src to dst. * @dst: the destination reservation object diff --git a/include/linux/dma-resv.h b/include/linux/dma-resv.h index 693d16117153..8c968f8c9d33 100644 --- a/include/linux/dma-resv.h +++ b/include/linux/dma-resv.h @@ -179,6 +179,7 @@ struct dma_resv_iter { struct dma_fence *dma_resv_iter_walk_unlocked(struct dma_resv_iter *cursor, bool first); +struct dma_fence *dma_resv_iter_walk(struct dma_resv_iter *cursor, bool first); /** * dma_resv_iter_begin - initialize a dma_resv_iter object @@ -233,6 +234,22 @@ static inline bool dma_resv_iter_is_exclusive(struct dma_resv_iter *cursor) for (fence = dma_resv_iter_walk_unlocked(cursor, true); \ fence; fence = dma_resv_iter_walk_unlocked(cursor, false)) +/** + * dma_resv_for_each_fence - fence iterator + * @cursor: a struct dma_resv_iter pointer + * @obj: a dma_resv object pointer + * @all_fences: true if all fences should be returned + * @fence: the current fence + * + * Iterate over the fences in a struct dma_resv object while holding the + * dma_resv::lock. @all_fences controls if the shared fences are returned as + * well. The cursor initialisation is part of the iterator. + */ +#define dma_resv_for_each_fence(cursor, obj, all_fences, fence) \ + for (dma_resv_iter_begin(cursor, obj, all_fences), \ + fence = dma_resv_iter_walk(cursor, true); fence; \ + fence = dma_resv_iter_walk(cursor, false)) + #define dma_resv_held(obj) lockdep_is_held(&(obj)->lock.base) #define dma_resv_assert_held(obj) lockdep_assert_held(&(obj)->lock.base) -- 2.25.1
next prev parent reply other threads:[~2021-09-17 12:35 UTC|newest] Thread overview: 118+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-09-17 12:34 Deploying new iterator interface for dma-buf Christian König 2021-09-17 12:34 ` [Intel-gfx] " Christian König 2021-09-17 12:34 ` [PATCH 01/26] dma-buf: add dma_resv_for_each_fence_unlocked v2 Christian König 2021-09-17 12:34 ` [Intel-gfx] " Christian König 2021-09-17 13:23 ` Daniel Vetter 2021-09-17 13:23 ` [Intel-gfx] " Daniel Vetter 2021-09-20 8:43 ` Tvrtko Ursulin 2021-09-20 10:09 ` Christian König 2021-09-20 10:26 ` Tvrtko Ursulin 2021-09-17 12:34 ` Christian König [this message] 2021-09-17 12:34 ` [Intel-gfx] [PATCH 02/26] dma-buf: add dma_resv_for_each_fence Christian König 2021-09-17 13:27 ` Daniel Vetter 2021-09-17 13:27 ` [Intel-gfx] " Daniel Vetter 2021-09-17 14:30 ` Daniel Vetter 2021-09-17 14:30 ` Daniel Vetter 2021-09-17 12:34 ` [PATCH 03/26] dma-buf: use new iterator in dma_resv_copy_fences Christian König 2021-09-17 12:34 ` [Intel-gfx] " Christian König 2021-09-17 14:35 ` Daniel Vetter 2021-09-17 14:35 ` [Intel-gfx] " Daniel Vetter 2021-09-20 7:23 ` Christian König 2021-09-20 7:23 ` [Intel-gfx] " Christian König 2021-09-17 12:34 ` [PATCH 04/26] dma-buf: use new iterator in dma_resv_get_fences v2 Christian König 2021-09-17 12:34 ` [Intel-gfx] " Christian König 2021-09-17 14:39 ` Daniel Vetter 2021-09-17 14:39 ` [Intel-gfx] " Daniel Vetter 2021-09-17 12:34 ` [PATCH 05/26] dma-buf: use new iterator in dma_resv_wait_timeout Christian König 2021-09-17 12:34 ` [Intel-gfx] " Christian König 2021-09-17 14:43 ` Daniel Vetter 2021-09-17 14:43 ` [Intel-gfx] " Daniel Vetter 2021-09-20 7:27 ` Christian König 2021-09-20 7:27 ` [Intel-gfx] " Christian König 2021-09-17 12:34 ` [PATCH 06/26] dma-buf: use new iterator in dma_resv_test_signaled Christian König 2021-09-17 12:34 ` [Intel-gfx] " Christian König 2021-09-17 14:45 ` Daniel Vetter 2021-09-17 14:45 ` [Intel-gfx] " Daniel Vetter 2021-09-17 12:34 ` [PATCH 07/26] drm/ttm: use the new iterator in ttm_bo_flush_all_fences Christian König 2021-09-17 12:34 ` [Intel-gfx] " Christian König 2021-09-17 14:50 ` Daniel Vetter 2021-09-17 14:50 ` [Intel-gfx] " Daniel Vetter 2021-09-17 12:34 ` [PATCH 08/26] drm/amdgpu: use the new iterator in amdgpu_sync_resv Christian König 2021-09-17 12:34 ` [Intel-gfx] " Christian König 2021-09-17 12:34 ` [PATCH 09/26] drm/amdgpu: use new iterator in amdgpu_ttm_bo_eviction_valuable Christian König 2021-09-17 12:34 ` [Intel-gfx] " Christian König 2021-09-17 12:34 ` [PATCH 10/26] drm/msm: use new iterator in msm_gem_describe Christian König 2021-09-17 12:34 ` [Intel-gfx] " Christian König 2021-09-17 12:34 ` [PATCH 11/26] drm/radeon: use new iterator in radeon_sync_resv Christian König 2021-09-17 12:34 ` [Intel-gfx] " Christian König 2021-09-17 12:34 ` [PATCH 12/26] drm/scheduler: use new iterator in drm_sched_job_add_implicit_dependencies v2 Christian König 2021-09-17 12:34 ` [Intel-gfx] " Christian König 2021-09-17 14:52 ` Daniel Vetter 2021-09-17 14:52 ` [Intel-gfx] " Daniel Vetter 2021-11-15 14:03 ` Sascha Hauer 2021-11-15 14:03 ` Sascha Hauer 2021-11-15 14:03 ` [Intel-gfx] " Sascha Hauer 2021-11-15 14:08 ` Daniel Vetter 2021-11-15 14:08 ` [Intel-gfx] " Daniel Vetter 2021-11-15 14:08 ` Daniel Vetter 2021-11-15 20:32 ` Christian König 2021-11-15 20:32 ` Christian König 2021-11-15 20:32 ` [Intel-gfx] " Christian König 2021-11-16 7:56 ` Sascha Hauer 2021-11-16 7:56 ` [Intel-gfx] " Sascha Hauer 2021-11-16 7:56 ` Sascha Hauer 2021-09-17 12:35 ` [PATCH 13/26] drm/i915: use the new iterator in i915_gem_busy_ioctl Christian König 2021-09-17 12:35 ` [Intel-gfx] " Christian König 2021-09-20 8:45 ` Tvrtko Ursulin 2021-09-20 10:13 ` Christian König 2021-09-20 10:33 ` Tvrtko Ursulin 2021-09-21 9:41 ` Christian König 2021-09-21 13:10 ` Tvrtko Ursulin 2021-09-17 12:35 ` [PATCH 14/26] drm/i915: use the new iterator in i915_sw_fence_await_reservation v3 Christian König 2021-09-17 12:35 ` [Intel-gfx] " Christian König 2021-09-20 8:45 ` Tvrtko Ursulin 2021-09-20 8:47 ` Tvrtko Ursulin 2021-09-20 10:14 ` Christian König 2021-09-17 12:35 ` [PATCH 15/26] drm/i915: use the new iterator in i915_request_await_object v2 Christian König 2021-09-17 12:35 ` [Intel-gfx] " Christian König 2021-09-17 12:35 ` [PATCH 16/26] drm/i915: use new iterator in i915_gem_object_wait_reservation v2 Christian König 2021-09-17 12:35 ` [Intel-gfx] " Christian König 2021-09-20 10:00 ` Tvrtko Ursulin 2021-09-21 17:35 ` Christian König 2021-09-17 12:35 ` [PATCH 17/26] drm/i915: use new iterator in i915_gem_object_wait_priority v2 Christian König 2021-09-17 12:35 ` [Intel-gfx] " Christian König 2021-09-17 12:35 ` [PATCH 18/26] drm/i915: use new iterator in i915_gem_object_last_write_engine v2 Christian König 2021-09-17 12:35 ` [Intel-gfx] " Christian König 2021-09-17 12:35 ` [PATCH 19/26] drm/i915: use new cursor in intel_prepare_plane_fb v2 Christian König 2021-09-17 12:35 ` [Intel-gfx] " Christian König 2021-09-17 12:35 ` [PATCH 20/26] drm: use new iterator in drm_gem_fence_array_add_implicit v2 Christian König 2021-09-17 12:35 ` [Intel-gfx] " Christian König 2021-09-17 14:53 ` Daniel Vetter 2021-09-17 14:53 ` [Intel-gfx] " Daniel Vetter 2021-09-20 7:31 ` Christian König 2021-09-20 7:31 ` [Intel-gfx] " Christian König 2021-09-17 12:35 ` [PATCH 21/26] drm: use new iterator in drm_gem_plane_helper_prepare_fb v2 Christian König 2021-09-17 12:35 ` [Intel-gfx] " Christian König 2021-09-17 14:55 ` Daniel Vetter 2021-09-17 14:55 ` [Intel-gfx] " Daniel Vetter 2021-09-20 7:35 ` Christian König 2021-09-20 7:35 ` [Intel-gfx] " Christian König 2021-09-17 12:35 ` [PATCH 22/26] drm/nouveau: use the new iterator in nouveau_fence_sync Christian König 2021-09-17 12:35 ` [Intel-gfx] " Christian König 2021-09-17 12:35 ` [PATCH 23/26] drm/nouveau: use the new interator in nv50_wndw_prepare_fb v2 Christian König 2021-09-17 12:35 ` [Intel-gfx] " Christian König 2021-09-17 12:35 ` [PATCH 24/26] drm/etnaviv: use new iterator in etnaviv_gem_describe Christian König 2021-09-17 12:35 ` [Intel-gfx] " Christian König 2021-09-17 12:35 ` [PATCH 25/26] drm/etnaviv: replace dma_resv_get_excl_unlocked Christian König 2021-09-17 12:35 ` [Intel-gfx] " Christian König 2021-09-17 12:35 ` [PATCH 26/26] dma-buf: nuke dma_resv_get_excl_unlocked Christian König 2021-09-17 12:35 ` [Intel-gfx] " Christian König 2021-09-17 14:56 ` Daniel Vetter 2021-09-17 14:56 ` [Intel-gfx] " Daniel Vetter 2021-09-17 14:01 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for series starting with [01/26] dma-buf: add dma_resv_for_each_fence_unlocked v2 Patchwork 2021-09-17 14:29 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork 2021-09-17 15:43 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork -- strict thread matches above, loose matches on Subject: below -- 2021-09-22 9:10 Deploying new iterator interface for dma-buf Christian König 2021-09-22 9:10 ` [PATCH 02/26] dma-buf: add dma_resv_for_each_fence Christian König 2021-09-21 17:36 [PATCH 01/26] dma-buf: add dma_resv_for_each_fence_unlocked v3 Christian König 2021-09-21 17:36 ` [PATCH 02/26] dma-buf: add dma_resv_for_each_fence Christian König 2021-09-16 11:30 Deploying new iterator interface for dma-buf Christian König 2021-09-16 11:30 ` [PATCH 02/26] dma-buf: add dma_resv_for_each_fence Christian König 2021-09-13 13:16 Deploying new iterator interface for dma-buf Christian König 2021-09-13 13:16 ` [PATCH 02/26] dma-buf: add dma_resv_for_each_fence Christian König
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20210917123513.1106-3-christian.koenig@amd.com \ --to=ckoenig.leichtzumerken@gmail.com \ --cc=daniel@ffwll.ch \ --cc=dri-devel@lists.freedesktop.org \ --cc=intel-gfx@lists.freedesktop.org \ --cc=linaro-mm-sig@lists.linaro.org \ --cc=linux-media@vger.kernel.org \ --subject='Re: [PATCH 02/26] dma-buf: add dma_resv_for_each_fence' \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: link
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.