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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BC8D4EB64DD for ; Tue, 1 Aug 2023 09:44:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233448AbjHAJoY (ORCPT ); Tue, 1 Aug 2023 05:44:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45266 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233488AbjHAJn7 (ORCPT ); Tue, 1 Aug 2023 05:43:59 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AB4BE619F for ; Tue, 1 Aug 2023 02:41:33 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id EC98561518 for ; Tue, 1 Aug 2023 09:41:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 09FC8C433C7; Tue, 1 Aug 2023 09:41:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1690882888; bh=97ANXdqjYeHyGz10vv+YL9+p8/XNAq6z6Q2NZ92A850=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vDILZpQX3ABOSJkS1KlJmdPSf9OqjlO8Iow6QxgP02AvNl4IbtJq99O6EreZI6t85 CpiNlJ/2T/njPyac0iDGDRmfKAfzp9JpFKoP2ZGWVXBrcTwDT01Tdlxm/rkChlJOYm W88WDIjo9qjGlPkgfKajSocLWkjMAI3URMAKBOYc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?Christian=20K=C3=B6nig?= , "Pelloux-Prayer, Pierre-Eric" , Alex Deucher , Sasha Levin , Pelloux-Prayer@vger.kernel.org Subject: [PATCH 6.4 039/239] drm/ttm: never consider pinned BOs for eviction&swap Date: Tue, 1 Aug 2023 11:18:23 +0200 Message-ID: <20230801091926.994226354@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230801091925.659598007@linuxfoundation.org> References: <20230801091925.659598007@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Christian König [ Upstream commit a2848d08742c8e8494675892c02c0d22acbe3cf8 ] There is a small window where we have already incremented the pin count but not yet moved the bo from the lru to the pinned list. Signed-off-by: Christian König Reported-by: Pelloux-Prayer, Pierre-Eric Tested-by: Pelloux-Prayer, Pierre-Eric Acked-by: Alex Deucher Cc: stable@vger.kernel.org Link: https://patchwork.freedesktop.org/patch/msgid/20230707120826.3701-1-christian.koenig@amd.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/ttm/ttm_bo.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 1a1cfd675cc46..7139a522b2f3b 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -517,6 +517,12 @@ static bool ttm_bo_evict_swapout_allowable(struct ttm_buffer_object *bo, { bool ret = false; + if (bo->pin_count) { + *locked = false; + *busy = false; + return false; + } + if (bo->base.resv == ctx->resv) { dma_resv_assert_held(bo->base.resv); if (ctx->allow_res_evict) -- 2.39.2