From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3CE2AC433DF for ; Fri, 16 Oct 2020 10:45:12 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B8641207F7 for ; Fri, 16 Oct 2020 10:45:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B8641207F7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 189E46EABC; Fri, 16 Oct 2020 10:44:57 +0000 (UTC) Received: from mblankhorst.nl (mblankhorst.nl [141.105.120.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id 499F86EAC7 for ; Fri, 16 Oct 2020 10:44:52 +0000 (UTC) From: Maarten Lankhorst To: intel-gfx@lists.freedesktop.org Date: Fri, 16 Oct 2020 12:44:17 +0200 Message-Id: <20201016104444.1492028-35-maarten.lankhorst@linux.intel.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201016104444.1492028-1-maarten.lankhorst@linux.intel.com> References: <20201016104444.1492028-1-maarten.lankhorst@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v4 34/61] drm/i915: Increase ww locking for perf. X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" We need to lock a few more objects, some temporarily, add ww lock where needed. Signed-off-by: Maarten Lankhorst --- drivers/gpu/drm/i915/i915_perf.c | 56 ++++++++++++++++++++++++-------- 1 file changed, 43 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c index e94976976571..281af1fdf514 100644 --- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -1579,7 +1579,7 @@ static int alloc_oa_buffer(struct i915_perf_stream *stream) stream->oa_buffer.vma = vma; stream->oa_buffer.vaddr = - i915_gem_object_pin_map(bo, I915_MAP_WB); + i915_gem_object_pin_map_unlocked(bo, I915_MAP_WB); if (IS_ERR(stream->oa_buffer.vaddr)) { ret = PTR_ERR(stream->oa_buffer.vaddr); goto err_unpin; @@ -1632,6 +1632,7 @@ static int alloc_noa_wait(struct i915_perf_stream *stream) const u32 base = stream->engine->mmio_base; #define CS_GPR(x) GEN8_RING_CS_GPR(base, x) u32 *batch, *ts0, *cs, *jump; + struct i915_gem_ww_ctx ww; int ret, i; enum { START_TS, @@ -1649,15 +1650,21 @@ static int alloc_noa_wait(struct i915_perf_stream *stream) return PTR_ERR(bo); } + i915_gem_ww_ctx_init(&ww, true); +retry: + ret = i915_gem_object_lock(bo, &ww); + if (ret) + goto out_ww; + /* * We pin in GGTT because we jump into this buffer now because * multiple OA config BOs will have a jump to this address and it * needs to be fixed during the lifetime of the i915/perf stream. */ - vma = i915_gem_object_ggtt_pin(bo, NULL, 0, 0, PIN_HIGH); + vma = i915_gem_object_ggtt_pin_ww(bo, &ww, NULL, 0, 0, PIN_HIGH); if (IS_ERR(vma)) { ret = PTR_ERR(vma); - goto err_unref; + goto out_ww; } batch = cs = i915_gem_object_pin_map(bo, I915_MAP_WB); @@ -1791,12 +1798,19 @@ static int alloc_noa_wait(struct i915_perf_stream *stream) __i915_gem_object_release_map(bo); stream->noa_wait = vma; - return 0; + goto out_ww; err_unpin: i915_vma_unpin_and_release(&vma, 0); -err_unref: - i915_gem_object_put(bo); +out_ww: + if (ret == -EDEADLK) { + ret = i915_gem_ww_ctx_backoff(&ww); + if (!ret) + goto retry; + } + i915_gem_ww_ctx_fini(&ww); + if (ret) + i915_gem_object_put(bo); return ret; } @@ -1839,6 +1853,7 @@ alloc_oa_config_buffer(struct i915_perf_stream *stream, { struct drm_i915_gem_object *obj; struct i915_oa_config_bo *oa_bo; + struct i915_gem_ww_ctx ww; size_t config_length = 0; u32 *cs; int err; @@ -1859,10 +1874,16 @@ alloc_oa_config_buffer(struct i915_perf_stream *stream, goto err_free; } + i915_gem_ww_ctx_init(&ww, true); +retry: + err = i915_gem_object_lock(obj, &ww); + if (err) + goto out_ww; + cs = i915_gem_object_pin_map(obj, I915_MAP_WB); if (IS_ERR(cs)) { err = PTR_ERR(cs); - goto err_oa_bo; + goto out_ww; } cs = write_cs_mi_lri(cs, @@ -1890,19 +1911,28 @@ alloc_oa_config_buffer(struct i915_perf_stream *stream, NULL); if (IS_ERR(oa_bo->vma)) { err = PTR_ERR(oa_bo->vma); - goto err_oa_bo; + goto out_ww; } oa_bo->oa_config = i915_oa_config_get(oa_config); llist_add(&oa_bo->node, &stream->oa_config_bos); - return oa_bo; +out_ww: + if (err == -EDEADLK) { + err = i915_gem_ww_ctx_backoff(&ww); + if (!err) + goto retry; + } + i915_gem_ww_ctx_fini(&ww); -err_oa_bo: - i915_gem_object_put(obj); + if (err) + i915_gem_object_put(obj); err_free: - kfree(oa_bo); - return ERR_PTR(err); + if (err) { + kfree(oa_bo); + return ERR_PTR(err); + } + return oa_bo; } static struct i915_vma * -- 2.28.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx