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=-15.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 D4B85C433DB for ; Tue, 19 Jan 2021 01:52:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 99A3D20793 for ; Tue, 19 Jan 2021 01:52:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392987AbhASBwV (ORCPT ); Mon, 18 Jan 2021 20:52:21 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:36491 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2392765AbhASBvu (ORCPT ); Mon, 18 Jan 2021 20:51:50 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1611021024; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=xm4VaWlgX93IkYu6cOVbQUmUWgu6MaGKFDLqY8C57ic=; b=JPw4PQgGjUsrHG9epnotg3BQseUTsmcDJL1cIy9iBGnDNXQLG6ZzXmlL3q8JQYxGfnFpxq kO77wIjc2R+1/uLOeE+CwRaKU6p89krbLOJOJcJxW2BFT0b6KtxX61rUstH1ZUCILq2Ncq AbNfaRdfmJ77I2meWi2HLIEX/ByN2RE= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-9-0MMP7VLpMmScxflnKCD5TA-1; Mon, 18 Jan 2021 20:50:23 -0500 X-MC-Unique: 0MMP7VLpMmScxflnKCD5TA-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id F112C18C8C00; Tue, 19 Jan 2021 01:50:21 +0000 (UTC) Received: from Whitewolf.lyude.net (ovpn-113-206.rdu2.redhat.com [10.10.113.206]) by smtp.corp.redhat.com (Postfix) with ESMTP id 7E1831F471; Tue, 19 Jan 2021 01:50:20 +0000 (UTC) From: Lyude Paul To: nouveau@lists.freedesktop.org Cc: Martin Peres , Jeremy Cline , Simon Ser , Ben Skeggs , David Airlie , Daniel Vetter , Dave Airlie , dri-devel@lists.freedesktop.org (open list:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS), linux-kernel@vger.kernel.org (open list) Subject: [PATCH 2/5] drm/nouveau/kms/nv50-: Check vbl count after CRC context flip Date: Mon, 18 Jan 2021 20:48:46 -0500 Message-Id: <20210119014849.2509965-3-lyude@redhat.com> In-Reply-To: <20210119014849.2509965-1-lyude@redhat.com> References: <20210119014849.2509965-1-lyude@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org While I haven't seen us take too long in nv50_crc_ctx_flip_work() outside of users with kernel logging on a serial port, it probably would be a good idea to check how long we take just in case we need to go faster in the future. Cc: Martin Peres Cc: Jeremy Cline Cc: Simon Ser Signed-off-by: Lyude Paul --- drivers/gpu/drm/nouveau/dispnv50/crc.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/nouveau/dispnv50/crc.c b/drivers/gpu/drm/nouveau/dispnv50/crc.c index 3c50b29a37ff..ef942248345c 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/crc.c +++ b/drivers/gpu/drm/nouveau/dispnv50/crc.c @@ -86,6 +86,8 @@ static void nv50_crc_ctx_flip_work(struct kthread_work *base) struct drm_crtc *crtc = &head->base.base; struct drm_device *dev = crtc->dev; struct nv50_disp *disp = nv50_disp(dev); + const uint64_t start_vbl = drm_crtc_vblank_count(crtc); + uint64_t end_vbl; u8 new_idx = crc->ctx_idx ^ 1; /* @@ -94,9 +96,7 @@ static void nv50_crc_ctx_flip_work(struct kthread_work *base) */ if (!mutex_trylock(&disp->mutex)) { drm_dbg_kms(dev, "Lock contended, delaying CRC ctx flip for %s\n", crtc->name); - drm_vblank_work_schedule(work, - drm_crtc_vblank_count(crtc) + 1, - true); + drm_vblank_work_schedule(work, start_vbl + 1, true); return; } @@ -107,6 +107,12 @@ static void nv50_crc_ctx_flip_work(struct kthread_work *base) nv50_crc_program_ctx(head, &crc->ctx[new_idx]); mutex_unlock(&disp->mutex); + end_vbl = drm_crtc_vblank_count(crtc); + if (unlikely(end_vbl != start_vbl)) + NV_ERROR(nouveau_drm(dev), + "Failed to flip CRC context on %s on time (%llu > %llu)\n", + crtc->name, end_vbl, start_vbl); + spin_lock_irq(&crc->lock); crc->ctx_changed = true; spin_unlock_irq(&crc->lock); -- 2.29.2 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lyude Paul Subject: [PATCH 2/5] drm/nouveau/kms/nv50-: Check vbl count after CRC context flip Date: Mon, 18 Jan 2021 20:48:46 -0500 Message-ID: <20210119014849.2509965-3-lyude@redhat.com> References: <20210119014849.2509965-1-lyude@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20210119014849.2509965-1-lyude-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Cc: David Airlie , Simon Ser , open list , "open list:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS" , Ben Skeggs , Daniel Vetter List-Id: nouveau.vger.kernel.org While I haven't seen us take too long in nv50_crc_ctx_flip_work() outside of users with kernel logging on a serial port, it probably would be a good idea to check how long we take just in case we need to go faster in the future. Cc: Martin Peres Cc: Jeremy Cline Cc: Simon Ser Signed-off-by: Lyude Paul --- drivers/gpu/drm/nouveau/dispnv50/crc.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/nouveau/dispnv50/crc.c b/drivers/gpu/drm/nouveau/dispnv50/crc.c index 3c50b29a37ff..ef942248345c 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/crc.c +++ b/drivers/gpu/drm/nouveau/dispnv50/crc.c @@ -86,6 +86,8 @@ static void nv50_crc_ctx_flip_work(struct kthread_work *base) struct drm_crtc *crtc = &head->base.base; struct drm_device *dev = crtc->dev; struct nv50_disp *disp = nv50_disp(dev); + const uint64_t start_vbl = drm_crtc_vblank_count(crtc); + uint64_t end_vbl; u8 new_idx = crc->ctx_idx ^ 1; /* @@ -94,9 +96,7 @@ static void nv50_crc_ctx_flip_work(struct kthread_work *base) */ if (!mutex_trylock(&disp->mutex)) { drm_dbg_kms(dev, "Lock contended, delaying CRC ctx flip for %s\n", crtc->name); - drm_vblank_work_schedule(work, - drm_crtc_vblank_count(crtc) + 1, - true); + drm_vblank_work_schedule(work, start_vbl + 1, true); return; } @@ -107,6 +107,12 @@ static void nv50_crc_ctx_flip_work(struct kthread_work *base) nv50_crc_program_ctx(head, &crc->ctx[new_idx]); mutex_unlock(&disp->mutex); + end_vbl = drm_crtc_vblank_count(crtc); + if (unlikely(end_vbl != start_vbl)) + NV_ERROR(nouveau_drm(dev), + "Failed to flip CRC context on %s on time (%llu > %llu)\n", + crtc->name, end_vbl, start_vbl); + spin_lock_irq(&crc->lock); crc->ctx_changed = true; spin_unlock_irq(&crc->lock); -- 2.29.2 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=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 D1C31C433DB for ; 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Tue, 19 Jan 2021 01:50:20 +0000 (UTC) From: Lyude Paul To: nouveau@lists.freedesktop.org Subject: [PATCH 2/5] drm/nouveau/kms/nv50-: Check vbl count after CRC context flip Date: Mon, 18 Jan 2021 20:48:46 -0500 Message-Id: <20210119014849.2509965-3-lyude@redhat.com> In-Reply-To: <20210119014849.2509965-1-lyude@redhat.com> References: <20210119014849.2509965-1-lyude@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Airlie , open list , "open list:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS" , Jeremy Cline , Ben Skeggs Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" While I haven't seen us take too long in nv50_crc_ctx_flip_work() outside of users with kernel logging on a serial port, it probably would be a good idea to check how long we take just in case we need to go faster in the future. Cc: Martin Peres Cc: Jeremy Cline Cc: Simon Ser Signed-off-by: Lyude Paul --- drivers/gpu/drm/nouveau/dispnv50/crc.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/nouveau/dispnv50/crc.c b/drivers/gpu/drm/nouveau/dispnv50/crc.c index 3c50b29a37ff..ef942248345c 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/crc.c +++ b/drivers/gpu/drm/nouveau/dispnv50/crc.c @@ -86,6 +86,8 @@ static void nv50_crc_ctx_flip_work(struct kthread_work *base) struct drm_crtc *crtc = &head->base.base; struct drm_device *dev = crtc->dev; struct nv50_disp *disp = nv50_disp(dev); + const uint64_t start_vbl = drm_crtc_vblank_count(crtc); + uint64_t end_vbl; u8 new_idx = crc->ctx_idx ^ 1; /* @@ -94,9 +96,7 @@ static void nv50_crc_ctx_flip_work(struct kthread_work *base) */ if (!mutex_trylock(&disp->mutex)) { drm_dbg_kms(dev, "Lock contended, delaying CRC ctx flip for %s\n", crtc->name); - drm_vblank_work_schedule(work, - drm_crtc_vblank_count(crtc) + 1, - true); + drm_vblank_work_schedule(work, start_vbl + 1, true); return; } @@ -107,6 +107,12 @@ static void nv50_crc_ctx_flip_work(struct kthread_work *base) nv50_crc_program_ctx(head, &crc->ctx[new_idx]); mutex_unlock(&disp->mutex); + end_vbl = drm_crtc_vblank_count(crtc); + if (unlikely(end_vbl != start_vbl)) + NV_ERROR(nouveau_drm(dev), + "Failed to flip CRC context on %s on time (%llu > %llu)\n", + crtc->name, end_vbl, start_vbl); + spin_lock_irq(&crc->lock); crc->ctx_changed = true; spin_unlock_irq(&crc->lock); -- 2.29.2 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel