From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 376AB10E512 for ; Tue, 7 Nov 2023 11:48:41 +0000 (UTC) From: Matthew Auld To: igt-dev@lists.freedesktop.org Date: Tue, 7 Nov 2023 11:48:06 +0000 Message-ID: <20231107114816.190793-6-matthew.auld@intel.com> In-Reply-To: <20231107114816.190793-1-matthew.auld@intel.com> References: <20231107114816.190793-1-matthew.auld@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [igt-dev] [PATCH i-g-t v8 05/15] tests/xe/mmap: add some tests for explicit cpu_caching List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" List-ID: Ensure the various invalid combinations are rejected. Also ensure we can mmap and fault anything that is valid. v2: Rebase on coh_mode removal. Signed-off-by: Matthew Auld Cc: José Roberto de Souza Cc: Pallavi Mishra Reviewed-by: Pallavi Mishra --- tests/intel/xe_mmap.c | 51 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/tests/intel/xe_mmap.c b/tests/intel/xe_mmap.c index 7e7e43c00..bd894f26f 100644 --- a/tests/intel/xe_mmap.c +++ b/tests/intel/xe_mmap.c @@ -199,6 +199,54 @@ static void test_small_bar(int fd) gem_close(fd, bo); } +static void assert_caching(int fd, uint64_t flags, uint16_t cpu_caching, bool fail) +{ + uint64_t size = xe_get_default_alignment(fd); + uint64_t mmo; + uint32_t handle; + uint32_t *map; + bool ret; + + ret = __xe_bo_create_caching(fd, 0, size, flags, cpu_caching, &handle); + igt_assert(ret == fail); + + if (fail) + return; + + mmo = xe_bo_mmap_offset(fd, handle); + map = mmap(NULL, size, PROT_WRITE, MAP_SHARED, fd, mmo); + igt_assert(map != MAP_FAILED); + map[0] = 0xdeadbeaf; + gem_close(fd, handle); +} + +/** + * SUBTEST: cpu-caching + * Description: Test explicit cpu_caching, including mmap behaviour. + * Test category: functionality test + */ +static void test_cpu_caching(int fd) +{ + if (vram_memory(fd, 0)) { + assert_caching(fd, vram_memory(fd, 0), + DRM_XE_GEM_CPU_CACHING_WC, false); + assert_caching(fd, vram_memory(fd, 0) | system_memory(fd), + DRM_XE_GEM_CPU_CACHING_WC, false); + + assert_caching(fd, vram_memory(fd, 0), + DRM_XE_GEM_CPU_CACHING_WB, true); + assert_caching(fd, vram_memory(fd, 0) | system_memory(fd), + DRM_XE_GEM_CPU_CACHING_WB, true); + } + + assert_caching(fd, system_memory(fd), DRM_XE_GEM_CPU_CACHING_WB, false); + assert_caching(fd, system_memory(fd), DRM_XE_GEM_CPU_CACHING_WC, false); + + assert_caching(fd, system_memory(fd), -1, true); + assert_caching(fd, system_memory(fd), 0, true); + assert_caching(fd, system_memory(fd), DRM_XE_GEM_CPU_CACHING_WC + 1, true); +} + igt_main { int fd; @@ -230,6 +278,9 @@ igt_main test_small_bar(fd); } + igt_subtest("cpu-caching") + test_cpu_caching(fd); + igt_fixture drm_close_driver(fd); } -- 2.41.0