From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> To: "Christian König" <ckoenig.leichtzumerken@gmail.com>, 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: Re: [Intel-gfx] [PATCH 14/26] drm/i915: use the new iterator in i915_sw_fence_await_reservation v3 Date: Mon, 20 Sep 2021 09:45:56 +0100 [thread overview] Message-ID: <93b93f00-7ad3-9ea3-e947-77297b4552c9@linux.intel.com> (raw) In-Reply-To: <20210917123513.1106-15-christian.koenig@amd.com> On 17/09/2021 13:35, Christian König wrote: > Simplifying the code a bit. > > v2: use dma_resv_for_each_fence instead, according to Tvrtko the lock is > held here anyway. > v3: back to using dma_resv_for_each_fence_unlocked. It did not work out - what happened? Regards, Tvrtko > Signed-off-by: Christian König <christian.koenig@amd.com> > --- > drivers/gpu/drm/i915/i915_sw_fence.c | 57 ++++++++-------------------- > 1 file changed, 15 insertions(+), 42 deletions(-) > > diff --git a/drivers/gpu/drm/i915/i915_sw_fence.c b/drivers/gpu/drm/i915/i915_sw_fence.c > index c589a681da77..7635b0478ea5 100644 > --- a/drivers/gpu/drm/i915/i915_sw_fence.c > +++ b/drivers/gpu/drm/i915/i915_sw_fence.c > @@ -572,56 +572,29 @@ int i915_sw_fence_await_reservation(struct i915_sw_fence *fence, > unsigned long timeout, > gfp_t gfp) > { > - struct dma_fence *excl; > + struct dma_resv_iter cursor; > + struct dma_fence *f; > int ret = 0, pending; > > debug_fence_assert(fence); > might_sleep_if(gfpflags_allow_blocking(gfp)); > > - if (write) { > - struct dma_fence **shared; > - unsigned int count, i; > - > - ret = dma_resv_get_fences(resv, &excl, &count, &shared); > - if (ret) > - return ret; > - > - for (i = 0; i < count; i++) { > - if (shared[i]->ops == exclude) > - continue; > - > - pending = i915_sw_fence_await_dma_fence(fence, > - shared[i], > - timeout, > - gfp); > - if (pending < 0) { > - ret = pending; > - break; > - } > - > - ret |= pending; > - } > - > - for (i = 0; i < count; i++) > - dma_fence_put(shared[i]); > - kfree(shared); > - } else { > - excl = dma_resv_get_excl_unlocked(resv); > - } > - > - if (ret >= 0 && excl && excl->ops != exclude) { > - pending = i915_sw_fence_await_dma_fence(fence, > - excl, > - timeout, > + rcu_read_lock(); > + dma_resv_iter_begin(&cursor, resv, write); > + dma_resv_for_each_fence_unlocked(&cursor, f) { > + rcu_read_unlock(); > + pending = i915_sw_fence_await_dma_fence(fence, f, timeout, > gfp); > - if (pending < 0) > + rcu_read_lock(); > + if (pending < 0) { > ret = pending; > - else > - ret |= pending; > - } > - > - dma_fence_put(excl); > + break; > + } > > + ret |= pending; > + } > + dma_resv_iter_end(&cursor); > + rcu_read_unlock(); > return ret; > } > >
next prev parent reply other threads:[~2021-09-20 8:46 UTC|newest] Thread overview: 116+ 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 ` [PATCH 02/26] dma-buf: add dma_resv_for_each_fence Christian König 2021-09-17 12:34 ` [Intel-gfx] " 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 [this message] 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 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 ` [Intel-gfx] [PATCH 14/26] drm/i915: use the new iterator in i915_sw_fence_await_reservation v3 Christian König 2021-09-22 9:10 Deploying new iterator interface for dma-buf Christian König 2021-09-22 9:10 ` [Intel-gfx] [PATCH 14/26] drm/i915: use the new iterator in i915_sw_fence_await_reservation v3 Christian König
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