From patchwork Mon Jun 25 09:48:33 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 10485417 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 35CC3601D5 for ; Mon, 25 Jun 2018 09:49:51 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 302312881B for ; Mon, 25 Jun 2018 09:49:51 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2522128962; Mon, 25 Jun 2018 09:49:51 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6A2B92881B for ; Mon, 25 Jun 2018 09:49:50 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D0CBC6E162; Mon, 25 Jun 2018 09:49:49 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from fireflyinternet.com (mail.fireflyinternet.com [109.228.58.192]) by gabe.freedesktop.org (Postfix) with ESMTPS id DB1956E187 for ; Mon, 25 Jun 2018 09:49:41 +0000 (UTC) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.65.138; Received: from haswell.alporthouse.com (unverified [78.156.65.138]) by fireflyinternet.com (Firefly Internet (M1)) with ESMTP id 12149679-1500050 for multiple; Mon, 25 Jun 2018 10:49:30 +0100 Received: by haswell.alporthouse.com (sSMTP sendmail emulation); Mon, 25 Jun 2018 10:49:31 +0100 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Mon, 25 Jun 2018 10:48:33 +0100 Message-Id: <20180625094842.8499-22-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180625094842.8499-1-chris@chris-wilson.co.uk> References: <20180625094842.8499-1-chris@chris-wilson.co.uk> X-Originating-IP: 78.156.65.138 X-Country: code=GB country="United Kingdom" ip=78.156.65.138 Subject: [Intel-gfx] [PATCH 22/31] drm/i915: Start returning an error from i915_vma_move_to_active() X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Handling such a late error in request construction is tricky, but to accommodate future patches which may allocate here, we potentially could err. To handle the error after already adjusting global state to track the new request, we must finish and submit the request. But we don't want to use the request as not everything is being tracked by it, so we opt to cancel the commands inside the request. Signed-off-by: Chris Wilson --- drivers/gpu/drm/i915/gvt/scheduler.c | 6 ++++- drivers/gpu/drm/i915/i915_drv.h | 6 ++--- drivers/gpu/drm/i915/i915_gem_execbuffer.c | 25 +++++++++++++------ drivers/gpu/drm/i915/i915_gem_render_state.c | 2 +- drivers/gpu/drm/i915/selftests/huge_pages.c | 9 +++++-- .../drm/i915/selftests/i915_gem_coherency.c | 4 +-- .../gpu/drm/i915/selftests/i915_gem_context.c | 12 +++++++-- .../gpu/drm/i915/selftests/i915_gem_object.c | 7 +++--- drivers/gpu/drm/i915/selftests/i915_request.c | 8 ++++-- .../gpu/drm/i915/selftests/intel_hangcheck.c | 11 ++++++-- drivers/gpu/drm/i915/selftests/intel_lrc.c | 11 ++++++-- .../drm/i915/selftests/intel_workarounds.c | 5 +++- 12 files changed, 78 insertions(+), 28 deletions(-) diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c index 928818f218f7..b0e566956b8d 100644 --- a/drivers/gpu/drm/i915/gvt/scheduler.c +++ b/drivers/gpu/drm/i915/gvt/scheduler.c @@ -476,7 +476,11 @@ static int prepare_shadow_batch_buffer(struct intel_vgpu_workload *workload) i915_gem_obj_finish_shmem_access(bb->obj); bb->accessing = false; - i915_vma_move_to_active(bb->vma, workload->req, 0); + ret = i915_vma_move_to_active(bb->vma, + workload->req, + 0); + if (ret) + goto err; } } return 0; diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 567c2bfbf702..c6171d2c55d7 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -3112,9 +3112,9 @@ i915_gem_obj_finish_shmem_access(struct drm_i915_gem_object *obj) } int __must_check i915_mutex_lock_interruptible(struct drm_device *dev); -void i915_vma_move_to_active(struct i915_vma *vma, - struct i915_request *rq, - unsigned int flags); +int __must_check i915_vma_move_to_active(struct i915_vma *vma, + struct i915_request *rq, + unsigned int flags); int i915_gem_dumb_create(struct drm_file *file_priv, struct drm_device *dev, struct drm_mode_create_dumb *args); diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 91f20445147f..97136e4ce91d 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -1165,12 +1165,16 @@ static int __reloc_gpu_alloc(struct i915_execbuffer *eb, goto err_request; GEM_BUG_ON(!reservation_object_test_signaled_rcu(batch->resv, true)); - i915_vma_move_to_active(batch, rq, 0); - i915_vma_unpin(batch); + err = i915_vma_move_to_active(batch, rq, 0); + if (err) + goto skip_request; - i915_vma_move_to_active(vma, rq, EXEC_OBJECT_WRITE); + err = i915_vma_move_to_active(vma, rq, EXEC_OBJECT_WRITE); + if (err) + goto skip_request; rq->batch = batch; + i915_vma_unpin(batch); cache->rq = rq; cache->rq_cmd = cmd; @@ -1179,6 +1183,8 @@ static int __reloc_gpu_alloc(struct i915_execbuffer *eb, /* Return with batch mapping (cmd) still pinned */ return 0; +skip_request: + i915_request_skip(rq, err); err_request: i915_request_add(rq); err_unpin: @@ -1818,7 +1824,11 @@ static int eb_move_to_gpu(struct i915_execbuffer *eb) unsigned int flags = eb->flags[i]; struct i915_vma *vma = eb->vma[i]; - i915_vma_move_to_active(vma, eb->request, flags); + err = i915_vma_move_to_active(vma, eb->request, flags); + if (unlikely(err)) { + i915_request_skip(eb->request, err); + return err; + } __eb_unreserve_vma(vma, flags); vma->exec_flags = NULL; @@ -1877,9 +1887,9 @@ static void export_fence(struct i915_vma *vma, reservation_object_unlock(resv); } -void i915_vma_move_to_active(struct i915_vma *vma, - struct i915_request *rq, - unsigned int flags) +int i915_vma_move_to_active(struct i915_vma *vma, + struct i915_request *rq, + unsigned int flags) { struct drm_i915_gem_object *obj = vma->obj; const unsigned int idx = rq->engine->id; @@ -1916,6 +1926,7 @@ void i915_vma_move_to_active(struct i915_vma *vma, i915_gem_active_set(&vma->last_fence, rq); export_fence(vma, rq, flags); + return 0; } static int i915_reset_gen7_sol_offsets(struct i915_request *rq) diff --git a/drivers/gpu/drm/i915/i915_gem_render_state.c b/drivers/gpu/drm/i915/i915_gem_render_state.c index 3210cedfa46c..90baf9086d0a 100644 --- a/drivers/gpu/drm/i915/i915_gem_render_state.c +++ b/drivers/gpu/drm/i915/i915_gem_render_state.c @@ -222,7 +222,7 @@ int i915_gem_render_state_emit(struct i915_request *rq) goto err_unpin; } - i915_vma_move_to_active(so.vma, rq, 0); + err = i915_vma_move_to_active(so.vma, rq, 0); err_unpin: i915_vma_unpin(so.vma); err_vma: diff --git a/drivers/gpu/drm/i915/selftests/huge_pages.c b/drivers/gpu/drm/i915/selftests/huge_pages.c index 48a5f43a3158..1f9de8d77779 100644 --- a/drivers/gpu/drm/i915/selftests/huge_pages.c +++ b/drivers/gpu/drm/i915/selftests/huge_pages.c @@ -985,7 +985,10 @@ static int gpu_write(struct i915_vma *vma, goto err_request; } - i915_vma_move_to_active(batch, rq, 0); + err = i915_vma_move_to_active(batch, rq, 0); + if (err) + goto err_request; + i915_gem_object_set_active_reference(batch->obj); i915_vma_unpin(batch); i915_vma_close(batch); @@ -996,7 +999,9 @@ static int gpu_write(struct i915_vma *vma, if (err) goto err_request; - i915_vma_move_to_active(vma, rq, EXEC_OBJECT_WRITE); + err = i915_vma_move_to_active(vma, rq, EXEC_OBJECT_WRITE); + if (err) + i915_request_skip(rq, err); err_request: i915_request_add(rq); diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_coherency.c b/drivers/gpu/drm/i915/selftests/i915_gem_coherency.c index 11427aae0853..328585459c67 100644 --- a/drivers/gpu/drm/i915/selftests/i915_gem_coherency.c +++ b/drivers/gpu/drm/i915/selftests/i915_gem_coherency.c @@ -222,12 +222,12 @@ static int gpu_set(struct drm_i915_gem_object *obj, } intel_ring_advance(rq, cs); - i915_vma_move_to_active(vma, rq, EXEC_OBJECT_WRITE); + err = i915_vma_move_to_active(vma, rq, EXEC_OBJECT_WRITE); i915_vma_unpin(vma); i915_request_add(rq); - return 0; + return err; } static bool always_valid(struct drm_i915_private *i915) diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/selftests/i915_gem_context.c index 7496a4d7b08d..f809a4596566 100644 --- a/drivers/gpu/drm/i915/selftests/i915_gem_context.c +++ b/drivers/gpu/drm/i915/selftests/i915_gem_context.c @@ -170,18 +170,26 @@ static int gpu_fill(struct drm_i915_gem_object *obj, if (err) goto err_request; - i915_vma_move_to_active(batch, rq, 0); + err = i915_vma_move_to_active(batch, rq, 0); + if (err) + goto skip_request; + + err = i915_vma_move_to_active(vma, rq, EXEC_OBJECT_WRITE); + if (err) + goto skip_request; + i915_gem_object_set_active_reference(batch->obj); i915_vma_unpin(batch); i915_vma_close(batch); - i915_vma_move_to_active(vma, rq, 0); i915_vma_unpin(vma); i915_request_add(rq); return 0; +skip_request: + i915_request_skip(rq, err); err_request: i915_request_add(rq); err_batch: diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_object.c b/drivers/gpu/drm/i915/selftests/i915_gem_object.c index 2b2dde94526f..459715c8e64b 100644 --- a/drivers/gpu/drm/i915/selftests/i915_gem_object.c +++ b/drivers/gpu/drm/i915/selftests/i915_gem_object.c @@ -454,12 +454,13 @@ static int make_obj_busy(struct drm_i915_gem_object *obj) return PTR_ERR(rq); } - i915_vma_move_to_active(vma, rq, 0); + err = i915_vma_move_to_active(vma, rq, 0); i915_request_add(rq); - i915_gem_object_set_active_reference(obj); + __i915_gem_object_release_unless_active(obj); i915_vma_unpin(vma); - return 0; + + return err; } static bool assert_mmap_offset(struct drm_i915_private *i915, diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c b/drivers/gpu/drm/i915/selftests/i915_request.c index 63cd9486cc13..87305ffaaeb7 100644 --- a/drivers/gpu/drm/i915/selftests/i915_request.c +++ b/drivers/gpu/drm/i915/selftests/i915_request.c @@ -678,7 +678,9 @@ static int live_all_engines(void *arg) i915_gem_object_set_active_reference(batch->obj); } - i915_vma_move_to_active(batch, request[id], 0); + err = i915_vma_move_to_active(batch, request[id], 0); + GEM_BUG_ON(err); + i915_request_get(request[id]); i915_request_add(request[id]); } @@ -788,7 +790,9 @@ static int live_sequential_engines(void *arg) GEM_BUG_ON(err); request[id]->batch = batch; - i915_vma_move_to_active(batch, request[id], 0); + err = i915_vma_move_to_active(batch, request[id], 0); + GEM_BUG_ON(err); + i915_gem_object_set_active_reference(batch->obj); i915_vma_get(batch); diff --git a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c index fe7d3190ebfe..e11df2743704 100644 --- a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c +++ b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c @@ -130,13 +130,19 @@ static int emit_recurse_batch(struct hang *h, if (err) goto unpin_vma; - i915_vma_move_to_active(vma, rq, 0); + err = i915_vma_move_to_active(vma, rq, 0); + if (err) + goto unpin_hws; + if (!i915_gem_object_has_active_reference(vma->obj)) { i915_gem_object_get(vma->obj); i915_gem_object_set_active_reference(vma->obj); } - i915_vma_move_to_active(hws, rq, 0); + err = i915_vma_move_to_active(hws, rq, 0); + if (err) + goto unpin_hws; + if (!i915_gem_object_has_active_reference(hws->obj)) { i915_gem_object_get(hws->obj); i915_gem_object_set_active_reference(hws->obj); @@ -205,6 +211,7 @@ static int emit_recurse_batch(struct hang *h, err = rq->engine->emit_bb_start(rq, vma->node.start, PAGE_SIZE, flags); +unpin_hws: i915_vma_unpin(hws); unpin_vma: i915_vma_unpin(vma); diff --git a/drivers/gpu/drm/i915/selftests/intel_lrc.c b/drivers/gpu/drm/i915/selftests/intel_lrc.c index 90841415cf7a..146908b90787 100644 --- a/drivers/gpu/drm/i915/selftests/intel_lrc.c +++ b/drivers/gpu/drm/i915/selftests/intel_lrc.c @@ -104,13 +104,19 @@ static int emit_recurse_batch(struct spinner *spin, if (err) goto unpin_vma; - i915_vma_move_to_active(vma, rq, 0); + err = i915_vma_move_to_active(vma, rq, 0); + if (err) + goto unpin_hws; + if (!i915_gem_object_has_active_reference(vma->obj)) { i915_gem_object_get(vma->obj); i915_gem_object_set_active_reference(vma->obj); } - i915_vma_move_to_active(hws, rq, 0); + err = i915_vma_move_to_active(hws, rq, 0); + if (err) + goto unpin_hws; + if (!i915_gem_object_has_active_reference(hws->obj)) { i915_gem_object_get(hws->obj); i915_gem_object_set_active_reference(hws->obj); @@ -134,6 +140,7 @@ static int emit_recurse_batch(struct spinner *spin, err = rq->engine->emit_bb_start(rq, vma->node.start, PAGE_SIZE, 0); +unpin_hws: i915_vma_unpin(hws); unpin_vma: i915_vma_unpin(vma); diff --git a/drivers/gpu/drm/i915/selftests/intel_workarounds.c b/drivers/gpu/drm/i915/selftests/intel_workarounds.c index e1ea2d2bedd2..c100153cb494 100644 --- a/drivers/gpu/drm/i915/selftests/intel_workarounds.c +++ b/drivers/gpu/drm/i915/selftests/intel_workarounds.c @@ -49,6 +49,10 @@ read_nonprivs(struct i915_gem_context *ctx, struct intel_engine_cs *engine) goto err_pin; } + err = i915_vma_move_to_active(vma, rq, EXEC_OBJECT_WRITE); + if (err) + goto err_req; + srm = MI_STORE_REGISTER_MEM | MI_SRM_LRM_GLOBAL_GTT; if (INTEL_GEN(ctx->i915) >= 8) srm++; @@ -67,7 +71,6 @@ read_nonprivs(struct i915_gem_context *ctx, struct intel_engine_cs *engine) } intel_ring_advance(rq, cs); - i915_vma_move_to_active(vma, rq, EXEC_OBJECT_WRITE); reservation_object_lock(vma->resv, NULL); reservation_object_add_excl_fence(vma->resv, &rq->fence); reservation_object_unlock(vma->resv);