From patchwork Fri Jan 29 03:05:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Stultz X-Patchwork-Id: 12055081 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=-16.5 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,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 BA35BC433DB for ; Fri, 29 Jan 2021 03:05:20 +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 53B8764DFA for ; Fri, 29 Jan 2021 03:05:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 53B8764DFA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0475F6EA30; Fri, 29 Jan 2021 03:05:19 +0000 (UTC) Received: from mail-pj1-x102d.google.com (mail-pj1-x102d.google.com [IPv6:2607:f8b0:4864:20::102d]) by gabe.freedesktop.org (Postfix) with ESMTPS id CCC766EA30 for ; Fri, 29 Jan 2021 03:05:17 +0000 (UTC) Received: by mail-pj1-x102d.google.com with SMTP id kx7so5035595pjb.2 for ; Thu, 28 Jan 2021 19:05:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=6FtqZbVLoNhYzW/5zxBFGSTg2OJ2tv0Ub0qNAJ13xHs=; b=j5yLzHZt+6y1rTjQAaHsDOTxGgaIO1Q9C9yvGJP/x3SkVLLnhJSUKnESb/H0Z9JJM3 X3o9CasXX6DZTksNat7StXwigWk+Orm9ia/zA32HYjwgB7fSoTv26tV1S3bs6YrGsFEp z4HPk5S+5CgJFgVQdxw+V7SZtaTKny8EBvZ3oJTURUzJ+ccHaYle+g1y092cga4L8huN RJggFGQ7Nhlb7TYWCH0Ubq1AsPnmdAUnLmHsDZinfH7eAFf/GnRcL4Dm4SijBHNx+FHZ Bw43r3f9o5DaCRZX9xsjG0o3Lr7MVysYUjjKamy51VBjfsyrADAgEtsWNzZdhWgazp4N PuAg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=6FtqZbVLoNhYzW/5zxBFGSTg2OJ2tv0Ub0qNAJ13xHs=; b=S74r1b3gqeCHeuiV1sMKQt35S9Laq4Nf9nrGTt7h8c6dzEOfZtKmSZsrT8Wc3Qtoko flvFPkOdmaiDFn0gKm1lXo5qoZRRxA3PJ7i2MlsvVtvA3o5xDDdqluZSxI9KSM4fjOni fGw0bsqU1/qXlzw9dd0Aooy6euXXTGqdxUVWwHfRCxPFmJ76W7Kt/htsnf3Jc2qQ6S1w Na3izzueqmjHJOjUwyM5ceoSBo6QaMQgLk43bh9b26dZpTnubEIRUxzxOsoA6+rdRZo9 Z4F33b1+xTsTkIPSxRegbXTvXrt2RkkxIADRYJs+KebWnZzYbF94ExtvzVv9x1F/5YKi /hUw== X-Gm-Message-State: AOAM533osD2RVL8+0d/u38EGKMZJ5WVnjztD8mBZzI9S5MgR05leq68n xDCx+SPpLk7fX1irUGRM8NVg0A== X-Google-Smtp-Source: ABdhPJxNcoBMcdOeDQYd3FdgzjZ86Cf272Rz2la9I9NvjeaL4IhlWxZTBvB3/43QEa/+/6QJlLWKNA== X-Received: by 2002:a17:90a:d913:: with SMTP id c19mr2416772pjv.19.1611889517371; Thu, 28 Jan 2021 19:05:17 -0800 (PST) Received: from localhost.localdomain ([2601:1c2:680:1319:692:26ff:feda:3a81]) by smtp.gmail.com with ESMTPSA id y75sm6854496pfg.119.2021.01.28.19.05.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Jan 2021 19:05:16 -0800 (PST) From: John Stultz To: lkml Subject: [PATCH 1/5] kselftests: dmabuf-heaps: Fix Makefile's inclusion of the kernel's usr/include dir Date: Fri, 29 Jan 2021 03:05:10 +0000 Message-Id: <20210129030514.1231773-1-john.stultz@linaro.org> X-Mailer: git-send-email 2.25.1 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: Sandeep Patil , Suren Baghdasaryan , dri-devel@lists.freedesktop.org, Laura Abbott , linux-kselftest@vger.kernel.org, Hridya Valsaraju , linux-media@vger.kernel.org, Shuah Khan , Daniel Mentz Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Copied in from somewhere else, the makefile was including the kerne's usr/include dir, which caused the asm/ioctl.h file to be used. Unfortunately, that file has different values for _IOC_SIZEBITS and _IOC_WRITE than include/uapi/asm-generic/ioctl.h which then causes the _IOCW macros to give the wrong ioctl numbers, specifically for DMA_BUF_IOCTL_SYNC. This patch simply removes the extra include from the Makefile Cc: Shuah Khan Cc: Brian Starkey Cc: Sumit Semwal Cc: Laura Abbott Cc: Hridya Valsaraju Cc: Suren Baghdasaryan Cc: Sandeep Patil Cc: Daniel Mentz Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linux-kselftest@vger.kernel.org Fixes: a8779927fd86c ("kselftests: Add dma-heap test") Signed-off-by: John Stultz --- tools/testing/selftests/dmabuf-heaps/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/dmabuf-heaps/Makefile b/tools/testing/selftests/dmabuf-heaps/Makefile index 607c2acd2082..604b43ece15f 100644 --- a/tools/testing/selftests/dmabuf-heaps/Makefile +++ b/tools/testing/selftests/dmabuf-heaps/Makefile @@ -1,5 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 -CFLAGS += -static -O3 -Wl,-no-as-needed -Wall -I../../../../usr/include +CFLAGS += -static -O3 -Wl,-no-as-needed -Wall TEST_GEN_PROGS = dmabuf-heap From patchwork Fri Jan 29 03:05:11 2021 Content-Type: text/plain; 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Thu, 28 Jan 2021 19:05:18 -0800 (PST) From: John Stultz To: lkml Subject: [PATCH 2/5] kselftests: dmabuf-heaps: Add clearer checks on DMABUF_BEGIN/END_SYNC Date: Fri, 29 Jan 2021 03:05:11 +0000 Message-Id: <20210129030514.1231773-2-john.stultz@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210129030514.1231773-1-john.stultz@linaro.org> References: <20210129030514.1231773-1-john.stultz@linaro.org> 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: Sandeep Patil , Suren Baghdasaryan , dri-devel@lists.freedesktop.org, Laura Abbott , linux-kselftest@vger.kernel.org, Hridya Valsaraju , linux-media@vger.kernel.org, Shuah Khan , Daniel Mentz Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add logic to check the dmabuf sync calls succeed. Cc: Shuah Khan Cc: Brian Starkey Cc: Sumit Semwal Cc: Laura Abbott Cc: Hridya Valsaraju Cc: Suren Baghdasaryan Cc: Sandeep Patil Cc: Daniel Mentz Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linux-kselftest@vger.kernel.org Signed-off-by: John Stultz --- .../selftests/dmabuf-heaps/dmabuf-heap.c | 20 ++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c index 909da9cdda97..46f6759a8acc 100644 --- a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c +++ b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c @@ -130,16 +130,13 @@ static int dmabuf_heap_alloc(int fd, size_t len, unsigned int flags, dmabuf_fd); } -static void dmabuf_sync(int fd, int start_stop) +static int dmabuf_sync(int fd, int start_stop) { struct dma_buf_sync sync = { .flags = start_stop | DMA_BUF_SYNC_RW, }; - int ret; - ret = ioctl(fd, DMA_BUF_IOCTL_SYNC, &sync); - if (ret) - printf("sync failed %d\n", errno); + return ioctl(fd, DMA_BUF_IOCTL_SYNC, &sync); } #define ONE_MEG (1024 * 1024) @@ -197,9 +194,18 @@ static int test_alloc_and_import(char *heap_name) } printf("import passed\n"); - dmabuf_sync(dmabuf_fd, DMA_BUF_SYNC_START); + ret = dmabuf_sync(dmabuf_fd, DMA_BUF_SYNC_START); + if (ret < 0) { + printf("Sync start failed!\n"); + goto out; + } + memset(p, 0xff, ONE_MEG); - dmabuf_sync(dmabuf_fd, DMA_BUF_SYNC_END); + ret = dmabuf_sync(dmabuf_fd, DMA_BUF_SYNC_END); + if (ret < 0) { + printf("Sync end failed!\n"); + goto out; + } printf("syncs passed\n"); close_handle(importer_fd, handle); From patchwork Fri Jan 29 03:05:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Stultz X-Patchwork-Id: 12055083 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=-16.5 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,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 D1D87C433E0 for ; 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Thu, 28 Jan 2021 19:05:20 -0800 (PST) Received: from localhost.localdomain ([2601:1c2:680:1319:692:26ff:feda:3a81]) by smtp.gmail.com with ESMTPSA id y75sm6854496pfg.119.2021.01.28.19.05.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Jan 2021 19:05:19 -0800 (PST) From: John Stultz To: lkml Subject: [PATCH 3/5] kselftests: dmabuf-heaps: Softly fail if don't find a vgem device Date: Fri, 29 Jan 2021 03:05:12 +0000 Message-Id: <20210129030514.1231773-3-john.stultz@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210129030514.1231773-1-john.stultz@linaro.org> References: <20210129030514.1231773-1-john.stultz@linaro.org> 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: Sandeep Patil , Suren Baghdasaryan , dri-devel@lists.freedesktop.org, Laura Abbott , linux-kselftest@vger.kernel.org, Hridya Valsaraju , linux-media@vger.kernel.org, Shuah Khan , Daniel Mentz Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" While testing against a vgem device is helpful for testing importing they aren't always configured in, so don't make it a fatal failure. Cc: Shuah Khan Cc: Brian Starkey Cc: Sumit Semwal Cc: Laura Abbott Cc: Hridya Valsaraju Cc: Suren Baghdasaryan Cc: Sandeep Patil Cc: Daniel Mentz Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linux-kselftest@vger.kernel.org Signed-off-by: John Stultz --- .../testing/selftests/dmabuf-heaps/dmabuf-heap.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c index 46f6759a8acc..8cedd539c7fb 100644 --- a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c +++ b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c @@ -184,15 +184,14 @@ static int test_alloc_and_import(char *heap_name) if (importer_fd < 0) { ret = importer_fd; printf("Failed to open vgem\n"); - goto out; - } - - ret = import_vgem_fd(importer_fd, dmabuf_fd, &handle); - if (ret < 0) { - printf("Failed to import buffer\n"); - goto out; + } else { + ret = import_vgem_fd(importer_fd, dmabuf_fd, &handle); + if (ret < 0) { + printf("Failed to import buffer\n"); + goto out; + } + printf("import passed\n"); } - printf("import passed\n"); ret = dmabuf_sync(dmabuf_fd, DMA_BUF_SYNC_START); if (ret < 0) { From patchwork Fri Jan 29 03:05:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Stultz X-Patchwork-Id: 12055087 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=-16.5 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,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 C591AC433E0 for ; Fri, 29 Jan 2021 03:05:30 +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 80B2F64DE5 for ; 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Thu, 28 Jan 2021 19:05:22 -0800 (PST) Received: from localhost.localdomain ([2601:1c2:680:1319:692:26ff:feda:3a81]) by smtp.gmail.com with ESMTPSA id y75sm6854496pfg.119.2021.01.28.19.05.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Jan 2021 19:05:21 -0800 (PST) From: John Stultz To: lkml Subject: [PATCH 4/5] kselftests: dmabuf-heaps: Cleanup test output Date: Fri, 29 Jan 2021 03:05:13 +0000 Message-Id: <20210129030514.1231773-4-john.stultz@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210129030514.1231773-1-john.stultz@linaro.org> References: <20210129030514.1231773-1-john.stultz@linaro.org> 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: Sandeep Patil , Suren Baghdasaryan , dri-devel@lists.freedesktop.org, Laura Abbott , linux-kselftest@vger.kernel.org, Hridya Valsaraju , linux-media@vger.kernel.org, Shuah Khan , Daniel Mentz Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Cleanup the test output so it is a bit easier to read Cc: Shuah Khan Cc: Brian Starkey Cc: Sumit Semwal Cc: Laura Abbott Cc: Hridya Valsaraju Cc: Suren Baghdasaryan Cc: Sandeep Patil Cc: Daniel Mentz Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linux-kselftest@vger.kernel.org Signed-off-by: John Stultz --- .../selftests/dmabuf-heaps/dmabuf-heap.c | 44 +++++++++---------- 1 file changed, 21 insertions(+), 23 deletions(-) diff --git a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c index 8cedd539c7fb..d179d81e2355 100644 --- a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c +++ b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c @@ -148,16 +148,14 @@ static int test_alloc_and_import(char *heap_name) void *p = NULL; int ret; - printf("Testing heap: %s\n", heap_name); - heap_fd = dmabuf_heap_open(heap_name); if (heap_fd < 0) return -1; - printf("Allocating 1 MEG\n"); + printf(" Testing allocation and importing: "); ret = dmabuf_heap_alloc(heap_fd, ONE_MEG, 0, &dmabuf_fd); if (ret) { - printf("Allocation Failed!\n"); + printf("FAIL (Allocation Failed!)\n"); ret = -1; goto out; } @@ -169,11 +167,10 @@ static int test_alloc_and_import(char *heap_name) dmabuf_fd, 0); if (p == MAP_FAILED) { - printf("mmap() failed: %m\n"); + printf("FAIL (mmap() failed)\n"); ret = -1; goto out; } - printf("mmap passed\n"); dmabuf_sync(dmabuf_fd, DMA_BUF_SYNC_START); memset(p, 1, ONE_MEG / 2); @@ -183,33 +180,31 @@ static int test_alloc_and_import(char *heap_name) importer_fd = open_vgem(); if (importer_fd < 0) { ret = importer_fd; - printf("Failed to open vgem\n"); + printf("(Could not open vgem - skipping): "); } else { ret = import_vgem_fd(importer_fd, dmabuf_fd, &handle); if (ret < 0) { - printf("Failed to import buffer\n"); + printf("FAIL (Failed to import buffer)\n"); goto out; } - printf("import passed\n"); } ret = dmabuf_sync(dmabuf_fd, DMA_BUF_SYNC_START); if (ret < 0) { - printf("Sync start failed!\n"); + printf("FAIL (DMA_BUF_SYNC_START failed!)\n"); goto out; } memset(p, 0xff, ONE_MEG); ret = dmabuf_sync(dmabuf_fd, DMA_BUF_SYNC_END); if (ret < 0) { - printf("Sync end failed!\n"); + printf("FAIL (DMA_BUF_SYNC_END failed!)\n"); goto out; } - printf("syncs passed\n"); close_handle(importer_fd, handle); ret = 0; - + printf(" OK\n"); out: if (p) munmap(p, ONE_MEG); @@ -297,23 +292,24 @@ static int test_alloc_compat(char *heap_name) if (heap_fd < 0) return -1; - printf("Testing (theoretical)older alloc compat\n"); + printf(" Testing (theoretical)older alloc compat: "); ret = dmabuf_heap_alloc_older(heap_fd, ONE_MEG, 0, &dmabuf_fd); if (ret) { - printf("Older compat allocation failed!\n"); + printf("FAIL (Older compat allocation failed!)\n"); ret = -1; goto out; } close(dmabuf_fd); + printf("OK\n"); - printf("Testing (theoretical)newer alloc compat\n"); + printf(" Testing (theoretical)newer alloc compat: "); ret = dmabuf_heap_alloc_newer(heap_fd, ONE_MEG, 0, &dmabuf_fd); if (ret) { - printf("Newer compat allocation failed!\n"); + printf("FAIL (Newer compat allocation failed!)\n"); ret = -1; goto out; } - printf("Ioctl compatibility tests passed\n"); + printf("OK\n"); out: if (dmabuf_fd >= 0) close(dmabuf_fd); @@ -332,17 +328,17 @@ static int test_alloc_errors(char *heap_name) if (heap_fd < 0) return -1; - printf("Testing expected error cases\n"); + printf(" Testing expected error cases: "); ret = dmabuf_heap_alloc(0, ONE_MEG, 0x111111, &dmabuf_fd); if (!ret) { - printf("Did not see expected error (invalid fd)!\n"); + printf("FAIL (Did not see expected error (invalid fd)!)\n"); ret = -1; goto out; } ret = dmabuf_heap_alloc(heap_fd, ONE_MEG, 0x111111, &dmabuf_fd); if (!ret) { - printf("Did not see expected error (invalid heap flags)!\n"); + printf("FAIL (Did not see expected error (invalid heap flags)!)\n"); ret = -1; goto out; } @@ -350,12 +346,12 @@ static int test_alloc_errors(char *heap_name) ret = dmabuf_heap_alloc_fdflags(heap_fd, ONE_MEG, ~(O_RDWR | O_CLOEXEC), 0, &dmabuf_fd); if (!ret) { - printf("Did not see expected error (invalid fd flags)!\n"); + printf("FAIL (Did not see expected error (invalid fd flags)!)\n"); ret = -1; goto out; } - printf("Expected error checking passed\n"); + printf("OK\n"); ret = 0; out: if (dmabuf_fd >= 0) @@ -384,6 +380,8 @@ int main(void) if (!strncmp(dir->d_name, "..", 3)) continue; + printf("Testing heap: %s\n", dir->d_name); + printf("=======================================\n"); ret = test_alloc_and_import(dir->d_name); if (ret) break; From patchwork Fri Jan 29 03:05:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Stultz X-Patchwork-Id: 12055089 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=-16.5 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,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 5783DC433E6 for ; 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Thu, 28 Jan 2021 19:05:23 -0800 (PST) Received: from localhost.localdomain ([2601:1c2:680:1319:692:26ff:feda:3a81]) by smtp.gmail.com with ESMTPSA id y75sm6854496pfg.119.2021.01.28.19.05.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Jan 2021 19:05:22 -0800 (PST) From: John Stultz To: lkml Subject: [PATCH 5/5] kselftests: dmabuf-heaps: Add extra checking that allocated buffers are zeroed Date: Fri, 29 Jan 2021 03:05:14 +0000 Message-Id: <20210129030514.1231773-5-john.stultz@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210129030514.1231773-1-john.stultz@linaro.org> References: <20210129030514.1231773-1-john.stultz@linaro.org> 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: Sandeep Patil , Suren Baghdasaryan , dri-devel@lists.freedesktop.org, Laura Abbott , linux-kselftest@vger.kernel.org, Hridya Valsaraju , linux-media@vger.kernel.org, Shuah Khan , Daniel Mentz Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add a check to validate that buffers allocated from the heaps are properly zeroed before being given to userland. It is done by allocating a number of buffers, and filling them with a nonzero pattern, then closing and reallocating more buffers and checking that they are all properly zeroed. This is helpful to validate any cached buffers are zeroed before being given back out. Cc: Shuah Khan Cc: Brian Starkey Cc: Sumit Semwal Cc: Laura Abbott Cc: Hridya Valsaraju Cc: Suren Baghdasaryan Cc: Sandeep Patil Cc: Daniel Mentz Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linux-kselftest@vger.kernel.org Signed-off-by: John Stultz --- .../selftests/dmabuf-heaps/dmabuf-heap.c | 86 +++++++++++++++++++ 1 file changed, 86 insertions(+) diff --git a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c index d179d81e2355..29af27acd40e 100644 --- a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c +++ b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c @@ -218,6 +218,84 @@ static int test_alloc_and_import(char *heap_name) return ret; } +static int test_alloc_zeroed(char *heap_name, size_t size) +{ + int heap_fd = -1, dmabuf_fd[32]; + int i, j, ret; + void *p = NULL; + char *c; + + printf(" Testing alloced %ldk buffers are zeroed: ", size / 1024); + heap_fd = dmabuf_heap_open(heap_name); + if (heap_fd < 0) + return -1; + + /* Allocate and fill a bunch of buffers */ + for (i = 0; i < 32; i++) { + ret = dmabuf_heap_alloc(heap_fd, size, 0, &dmabuf_fd[i]); + if (ret < 0) { + printf("FAIL (Allocation (%i) failed)\n", i); + goto out; + } + /* mmap and fill with simple pattern */ + p = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, dmabuf_fd[i], 0); + if (p == MAP_FAILED) { + printf("FAIL (mmap() failed!)\n"); + ret = -1; + goto out; + } + dmabuf_sync(dmabuf_fd[i], DMA_BUF_SYNC_START); + memset(p, 0xff, size); + dmabuf_sync(dmabuf_fd[i], DMA_BUF_SYNC_END); + munmap(p, size); + } + /* close them all */ + for (i = 0; i < 32; i++) + close(dmabuf_fd[i]); + + /* Allocate and validate all buffers are zeroed */ + for (i = 0; i < 32; i++) { + ret = dmabuf_heap_alloc(heap_fd, size, 0, &dmabuf_fd[i]); + if (ret < 0) { + printf("FAIL (Allocation (%i) failed)\n", i); + goto out; + } + + /* mmap and validate everything is zero */ + p = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, dmabuf_fd[i], 0); + if (p == MAP_FAILED) { + printf("FAIL (mmap() failed!)\n"); + ret = -1; + goto out; + } + dmabuf_sync(dmabuf_fd[i], DMA_BUF_SYNC_START); + c = (char *)p; + for (j = 0; j < size; j++) { + if (c[j] != 0) { + printf("FAIL (Allocated buffer not zeroed @ %i)\n", j); + break; + } + } + dmabuf_sync(dmabuf_fd[i], DMA_BUF_SYNC_END); + munmap(p, size); + } + /* close them all */ + for (i = 0; i < 32; i++) + close(dmabuf_fd[i]); + + close(heap_fd); + printf("OK\n"); + return 0; + +out: + while (i > 0) { + close(dmabuf_fd[i]); + i--; + } + close(heap_fd); + return ret; +} + /* Test the ioctl version compatibility w/ a smaller structure then expected */ static int dmabuf_heap_alloc_older(int fd, size_t len, unsigned int flags, int *dmabuf_fd) @@ -386,6 +464,14 @@ int main(void) if (ret) break; + ret = test_alloc_zeroed(dir->d_name, 4 * 1024); + if (ret) + break; + + ret = test_alloc_zeroed(dir->d_name, ONE_MEG); + if (ret) + break; + ret = test_alloc_compat(dir->d_name); if (ret) break;