From patchwork Thu Jan 4 11:57:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacek Lawrynowicz X-Patchwork-Id: 13511034 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 46E5DC47073 for ; Thu, 4 Jan 2024 11:57:39 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1902F10E446; Thu, 4 Jan 2024 11:57:37 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.10]) by gabe.freedesktop.org (Postfix) with ESMTPS id CEBBF10E43D for ; Thu, 4 Jan 2024 11:57:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1704369452; x=1735905452; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=+y8VfG/l9WdV1CV7VtLC4jsOLGvdb8I1j7iJFqV/4Qw=; b=Z/ylu4kPOe+bDNMYfQgtc0EQbpMCzLJEX/D6PdKZl7fvogMgzq2ZjOJf 4nRbMDPb0FQLs/NBSbPUyFyZ9Pt+n8sdfKznjDuieiNssvdDcEfujYVZA nesVbKvS4EMoG2dVh7WZYDNNhvaoP92Dy05Os+QdgcSE9/ircGSv/NYTu M8aAr7SXu4KSw/lziBKF391NbD7U3sSREY17ioVrdfxldhD2hDKIaddI2 htyoMIgpCqGDDtRfH0KGpA2I6Vp/J2uOoOEoC27hgfASNuzuX1D+yTaTv aVHWFinY4VotN1mJyc6/XpUpKQpMN1IXSdfjAVm/J4Ep/fuPuWHW0yTYN Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10942"; a="4584155" X-IronPort-AV: E=Sophos;i="6.04,330,1695711600"; d="scan'208";a="4584155" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Jan 2024 03:57:32 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10942"; a="899275729" X-IronPort-AV: E=Sophos;i="6.04,330,1695711600"; d="scan'208";a="899275729" Received: from jlawryno.igk.intel.com ([10.91.220.59]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Jan 2024 03:57:30 -0800 From: Jacek Lawrynowicz To: dri-devel@lists.freedesktop.org Subject: [PATCH 06/16] accel/ivpu: Fix for missing lock around drm_gem_shmem_vmap() Date: Thu, 4 Jan 2024 12:57:03 +0100 Message-ID: <20240104115713.8657-7-jacek.lawrynowicz@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240104115713.8657-1-jacek.lawrynowicz@linux.intel.com> References: <20240104115713.8657-1-jacek.lawrynowicz@linux.intel.com> MIME-Version: 1.0 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: quic_jhugo@quicinc.com, Jacek Lawrynowicz Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" drm_gem_shmem_vmap/vunmap requires dma resv lock to be held. This was missed during conversion to shmem helper. Signed-off-by: Jacek Lawrynowicz --- drivers/accel/ivpu/ivpu_gem.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/accel/ivpu/ivpu_gem.c b/drivers/accel/ivpu/ivpu_gem.c index 1dda4f38ea25..6890d33cf352 100644 --- a/drivers/accel/ivpu/ivpu_gem.c +++ b/drivers/accel/ivpu/ivpu_gem.c @@ -361,7 +361,9 @@ ivpu_bo_alloc_internal(struct ivpu_device *vdev, u64 vpu_addr, u64 size, u32 fla if (ret) goto err_put; + dma_resv_lock(bo->base.base.resv, NULL); ret = drm_gem_shmem_vmap(&bo->base, &map); + dma_resv_unlock(bo->base.base.resv); if (ret) goto err_put; @@ -376,7 +378,10 @@ void ivpu_bo_free_internal(struct ivpu_bo *bo) { struct iosys_map map = IOSYS_MAP_INIT_VADDR(bo->base.vaddr); + dma_resv_lock(bo->base.base.resv, NULL); drm_gem_shmem_vunmap(&bo->base, &map); + dma_resv_unlock(bo->base.base.resv); + drm_gem_object_put(&bo->base.base); }