From patchwork Wed Oct 3 12:27:04 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Kuoppala X-Patchwork-Id: 1541281 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by patchwork1.kernel.org (Postfix) with ESMTP id 81D073FD56 for ; Wed, 3 Oct 2012 12:27:27 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1237D9E8C4 for ; Wed, 3 Oct 2012 05:27:27 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga03.intel.com (mga03.intel.com [143.182.124.21]) by gabe.freedesktop.org (Postfix) with ESMTP id 13A319E8C4 for ; Wed, 3 Oct 2012 05:27:09 -0700 (PDT) Received: from azsmga001.ch.intel.com ([10.2.17.19]) by azsmga101.ch.intel.com with ESMTP; 03 Oct 2012 05:27:08 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.80,527,1344236400"; d="scan'208";a="200026982" Received: from rosetta.fi.intel.com (HELO rosetta) ([10.237.72.92]) by azsmga001.ch.intel.com with ESMTP; 03 Oct 2012 05:27:06 -0700 Received: by rosetta (Postfix, from userid 1000) id 4C5B46416B8; Wed, 3 Oct 2012 15:27:06 +0300 (EEST) From: mika.kuoppala@intel.com To: intel-gfx@lists.freedesktop.org Date: Wed, 3 Oct 2012 15:27:04 +0300 Message-Id: <1349267224-6946-1-git-send-email-mika.kuoppala@intel.com> X-Mailer: git-send-email 1.7.9.5 Cc: Mika Kuoppala Subject: [Intel-gfx] [PATCH] tests: add drm_threaded_access_tiled X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org From: Mika Kuoppala This catches parallel access to bo->virtual causing sigbus Signed-off-by: Mika Kuoppala --- tests/Makefile.am | 1 + tests/drm_threaded_access_tiled.c | 123 +++++++++++++++++++++++++++++++++++++ 2 files changed, 124 insertions(+) create mode 100644 tests/drm_threaded_access_tiled.c diff --git a/tests/Makefile.am b/tests/Makefile.am index 956a724..6811290 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -71,6 +71,7 @@ TESTS_progs = \ drm_vma_limiter_cpu \ drm_vma_limiter_gtt \ drm_vma_limiter_cached \ + drm_threaded_access_tiled \ sysfs_rc6_residency \ sysfs_rps \ flip_test \ diff --git a/tests/drm_threaded_access_tiled.c b/tests/drm_threaded_access_tiled.c new file mode 100644 index 0000000..362cf3a --- /dev/null +++ b/tests/drm_threaded_access_tiled.c @@ -0,0 +1,123 @@ +/* + * Copyright (c) 2012 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + * Authors: + * Mika Kuoppala + */ + +#include +#include +#include +#include +#include +#include + +#include "drmtest.h" +#include "i915_drm.h" +#include "intel_bufmgr.h" + +/* Testcase: check parallel access to tiled memory + * + * Parallel access to tiled memory caused sigbus + */ + +#define NUM_THREADS 2 +#define WIDTH 4096 +#define HEIGHT 4096 + +struct thread_ctx { + drm_intel_bo *bo; +}; + +static drm_intel_bufmgr *bufmgr; +static struct thread_ctx tctx[NUM_THREADS]; + +static void *copy_fn(void *p) +{ + unsigned char *buf; + struct thread_ctx *c = p; + + buf = malloc(WIDTH * HEIGHT); + if (buf == NULL) + return (void *)1; + + memcpy(buf, c->bo->virtual, WIDTH * HEIGHT); + + free(buf); + return (void *)0; +} + +static int copy_tile_threaded(drm_intel_bo *bo) +{ + int i; + int r; + pthread_t thr[NUM_THREADS]; + void *status; + + for (i = 0; i < NUM_THREADS; i++) { + tctx[i].bo = bo; + r = pthread_create(&thr[i], NULL, copy_fn, (void *)&tctx[i]); + assert(r == 0); + } + + for (i = 0; i < NUM_THREADS; i++) { + pthread_join(thr[i], &status); + assert(status == 0); + } + + return 0; +} + +int main(int argc, char **argv) +{ + int fd; + drm_intel_bo *bo; + uint32_t tiling_mode = I915_TILING_Y; + unsigned long pitch = 0; + int r; + + fd = drm_open_any(); + assert(fd >= 0); + + bufmgr = drm_intel_bufmgr_gem_init(fd, 4096); + assert(bufmgr); + + bo = drm_intel_bo_alloc_tiled(bufmgr, "mmap bo", WIDTH, HEIGHT, 1, + &tiling_mode, &pitch, 0); + assert(bo); + + r = drm_intel_gem_bo_map_gtt(bo); + assert(!r); + + r = copy_tile_threaded(bo); + assert(!r); + + r = drm_intel_gem_bo_unmap_gtt(bo); + assert(!r); + + drm_intel_bo_unreference(bo); + drm_intel_bufmgr_destroy(bufmgr); + + close(fd); + + return 0; +}