From patchwork Wed Apr 8 10:51:52 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joonas Lahtinen X-Patchwork-Id: 6178151 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id F3B6C9F1C4 for ; Wed, 8 Apr 2015 10:51:59 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D20C020306 for ; Wed, 8 Apr 2015 10:51:58 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 368F72035D for ; Wed, 8 Apr 2015 10:51:57 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BC1BC6E24E; Wed, 8 Apr 2015 03:51:56 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTP id D33926E24E for ; Wed, 8 Apr 2015 03:51:55 -0700 (PDT) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP; 08 Apr 2015 03:51:55 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,544,1422950400"; d="scan'208";a="705382032" Received: from jlahtine-mobl1.ger.corp.intel.com (HELO [10.252.20.219]) ([10.252.20.219]) by fmsmga002.fm.intel.com with ESMTP; 08 Apr 2015 03:51:53 -0700 Message-ID: <1428490312.7407.10.camel@jlahtine-mobl1> From: Joonas Lahtinen To: intel-gfx@lists.freedesktop.org Date: Wed, 08 Apr 2015 13:51:52 +0300 In-Reply-To: <20150407140810.GF12214@nuc-i3427.alporthouse.com> References: <20150407140810.GF12214@nuc-i3427.alporthouse.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo X-Mailer: Evolution 3.10.4 (3.10.4-4.fc20) Mime-Version: 1.0 Subject: [Intel-gfx] [PATCH i-g-t v2 2/2] tests/gem_mmap_gtt: add huge BO test X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add a straightforward test that allocates a BO that is bigger than (by 1 page currently) the mappable aperture, tests mmap access to it by CPU directly and through GTT in sequence. Currently it is expected for the GTT access to gracefully fail as all objects are attempted to get pinned to GTT completely for mmap access. Once the partial view support is merged to kernel, the test should pass for all parts. v2: - Corrected BO domain handling (Chris Wilson) - Check again after GTT access for added paranoia (Chris Wilson) Cc: Chris Wilson Signed-off-by: Joonas Lahtinen --- tests/gem_mmap_gtt.c | 104 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 104 insertions(+) diff --git a/tests/gem_mmap_gtt.c b/tests/gem_mmap_gtt.c index d2803d7..c613a41 100644 --- a/tests/gem_mmap_gtt.c +++ b/tests/gem_mmap_gtt.c @@ -41,6 +41,10 @@ #include "drmtest.h" #include "igt_debugfs.h" +#ifndef PAGE_SIZE +#define PAGE_SIZE 4096 +#endif + static int OBJECT_SIZE = 16*1024*1024; static void set_domain_gtt(int fd, uint32_t handle) @@ -263,6 +267,104 @@ test_write_gtt(int fd) } static void +test_huge_bo(int fd) +{ + uint32_t bo; + char *ptr_cpu; + char *ptr_gtt; + char *cpu_pattern; + char *gtt_pattern; + uint64_t mappable_aperture_pages = gem_mappable_aperture_size() / + PAGE_SIZE; + uint64_t huge_object_size = (mappable_aperture_pages + 1) * PAGE_SIZE; + uint64_t last_offset = huge_object_size - PAGE_SIZE; + + cpu_pattern = malloc(PAGE_SIZE); + gtt_pattern = malloc(PAGE_SIZE); + igt_assert(cpu_pattern && gtt_pattern); + memset(cpu_pattern, 0xaa, PAGE_SIZE); + memset(gtt_pattern, ~0xaa, PAGE_SIZE); + + bo = gem_create(fd, huge_object_size); + + /* Test read/write to first/last page with CPU. */ + ptr_cpu = gem_mmap__cpu(fd, bo, 0, huge_object_size, + PROT_READ | PROT_WRITE); + if (!ptr_cpu) { + igt_warn("Not enough free memory to begin huge BO test!\n"); + goto out; + } + + set_domain_cpu(fd, bo); + + memcpy(ptr_cpu, cpu_pattern, PAGE_SIZE); + igt_assert(memcmp(ptr_cpu, cpu_pattern, PAGE_SIZE) == 0); + + memcpy(ptr_cpu + last_offset, cpu_pattern, PAGE_SIZE); + igt_assert(memcmp(ptr_cpu + last_offset, cpu_pattern, PAGE_SIZE) == 0); + + igt_assert(memcmp(ptr_cpu, ptr_cpu + last_offset, PAGE_SIZE) == 0); + + munmap(ptr_cpu, huge_object_size); + ptr_cpu = NULL; + + /* Test read/write to first/last page through GTT after CPU writes. + * Require that previous CPU written values still exist. + */ + ptr_gtt = gem_mmap__gtt(fd, bo, huge_object_size, + PROT_READ | PROT_WRITE); + if (!ptr_gtt) { + igt_debug("Huge BO GTT mapping not supported!\n"); + goto out; + } + + set_domain_gtt(fd, bo); + + igt_assert(memcmp(ptr_gtt , cpu_pattern, PAGE_SIZE) == 0); + igt_assert(memcmp(ptr_gtt + last_offset, cpu_pattern, PAGE_SIZE) == 0); + + memcpy(ptr_gtt, gtt_pattern, PAGE_SIZE); + igt_assert(memcmp(ptr_gtt , gtt_pattern, PAGE_SIZE) == 0); + igt_assert(memcmp(ptr_gtt + last_offset, cpu_pattern, PAGE_SIZE) == 0); + + memcpy(ptr_gtt + last_offset, gtt_pattern, PAGE_SIZE); + igt_assert(memcmp(ptr_gtt , gtt_pattern, PAGE_SIZE) == 0); + igt_assert(memcmp(ptr_gtt + last_offset, gtt_pattern, PAGE_SIZE) == 0); + + munmap(ptr_gtt, huge_object_size); + ptr_gtt = NULL; + + /* Test read/write to first/last page through CPU after GTT writes. + * Require that previous GTT written values still exist. + */ + ptr_cpu = gem_mmap__cpu(fd, bo, 0, huge_object_size, + PROT_READ | PROT_WRITE); + if (!ptr_cpu) { + igt_warn("Not enough free memory to complete huge BO test!\n"); + goto out; + } + + set_domain_cpu(fd, bo); + + igt_assert(memcmp(ptr_cpu , gtt_pattern, PAGE_SIZE) == 0); + igt_assert(memcmp(ptr_cpu + last_offset, gtt_pattern, PAGE_SIZE) == 0); + + memcpy(ptr_cpu, cpu_pattern, PAGE_SIZE); + igt_assert(memcmp(ptr_cpu , cpu_pattern, PAGE_SIZE) == 0); + igt_assert(memcmp(ptr_cpu + last_offset, gtt_pattern, PAGE_SIZE) == 0); + + memcpy(ptr_cpu + last_offset, cpu_pattern, PAGE_SIZE); + igt_assert(memcmp(ptr_cpu , cpu_pattern, PAGE_SIZE) == 0); + igt_assert(memcmp(ptr_cpu + last_offset, cpu_pattern, PAGE_SIZE) == 0); + + munmap(ptr_cpu, huge_object_size); + ptr_cpu = NULL; +out: + gem_close(fd, bo); + free(cpu_pattern); +} + +static void test_read(int fd) { void *dst; @@ -400,6 +502,8 @@ igt_main run_without_prefault(fd, test_write_gtt); igt_subtest("write-cpu-read-gtt") test_write_cpu_read_gtt(fd); + igt_subtest("huge-bo") + test_huge_bo(fd); igt_fixture close(fd);