From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AH8x226rHktIjKvJxvBWOsHIV/pUex6iMJf8fKTJIed9ezaO97bQNy6lWgc+UD3ahPKixTWjj2tc ARC-Seal: i=1; a=rsa-sha256; t=1517257355; cv=none; d=google.com; s=arc-20160816; b=aa0MBbMZ6iAGDyBcv/6Njid+4w46JhKR0eriA+2vnn1thLORc2NzUntEuSRIoHK1xo fP8uqH3x/hFnN+KYpOhBg5ZRINB2bnFKY5M5+U9Dt2aXKdIvYOUdbI64uwuvweNNPFK5 TMDVYOQlkEQUyyMNtIiDwkAOeDC6Eu3s/OKQ5DAjrszMhftGo7z2VbWxzuuMz4Q6/kSa 5bzbMDxtpKnLQFy0kf8pmrNjTO8xJ/0qfBKV7yNpp0xZCVaIB9n+k2KaKOT/26cx2oGq sTSnJVx9Uq7hXBk0+JbpNQPyqvEYh61kLDrHOyAq6Z9c9mIL/4wusTaToijpqZyXwS0l 9hmg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=references:in-reply-to:message-id:date:subject:cc:to:from :arc-authentication-results; bh=dXhK4aSI3HVyrcYyYAzFXRSGoR5u37+m0Zvjpuwq050=; b=08/tkltUzzH4rjpEzbgDt/MBky7QKU8GYKvauaIgqOaOI8C+zF2Pf8Gp+A2e2GqBio xh6UOfhwrIJ8F3l+1FmiLGEfS3qfwuwiFXIQUCGBx1MA37xvsj9u5fFFjJcLpp6PrD21 SEbJqPIu/CXYZ68eN6sITBt7boWlR4+7dvbzZMaEoocx3EJduGfksNI3HT8Fk7Qriow1 g23PAIxx/7Wya670xg3Q0EHUYHr4Q26CrEDQrGCPQJRrOqpaOb3A19Cp1hzpLzspacuq 6yrM4YXtAkwCwAFN6l875EVcckwaphCWa+0343QYJu8/w/XNwv6KNmbv7ShOCtzsaYJS OOrQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of mathieu.desnoyers@efficios.com designates 167.114.142.141 as permitted sender) smtp.mailfrom=mathieu.desnoyers@efficios.com Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of mathieu.desnoyers@efficios.com designates 167.114.142.141 as permitted sender) smtp.mailfrom=mathieu.desnoyers@efficios.com From: Mathieu Desnoyers To: Ingo Molnar , Peter Zijlstra , Thomas Gleixner Cc: linux-kernel@vger.kernel.org, linux-api@vger.kernel.org, Andy Lutomirski , "Paul E . McKenney" , Boqun Feng , Andrew Hunter , Maged Michael , Avi Kivity , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Dave Watson , "H . Peter Anvin" , Andrea Parri , Russell King , Greg Hackmann , Will Deacon , David Sehr , Linus Torvalds , x86@kernel.org, Mathieu Desnoyers , Greg Kroah-Hartman , Alan Stern , Alice Ferrazzi , Paul Elder , linux-kselftest@vger.kernel.org, linux-arch@vger.kernel.org Subject: [PATCH for 4.16 11/11] membarrier: selftest: Test private expedited sync core cmd Date: Mon, 29 Jan 2018 15:20:20 -0500 Message-Id: <20180129202020.8515-12-mathieu.desnoyers@efficios.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180129202020.8515-1-mathieu.desnoyers@efficios.com> References: <20180129202020.8515-1-mathieu.desnoyers@efficios.com> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1590959648722584089?= X-GMAIL-MSGID: =?utf-8?q?1590959648722584089?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Test the new MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE and MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE commands. Signed-off-by: Mathieu Desnoyers Acked-by: Shuah Khan Acked-by: Peter Zijlstra (Intel) CC: Greg Kroah-Hartman CC: Paul E. McKenney CC: Boqun Feng CC: Andrew Hunter CC: Maged Michael CC: Avi Kivity CC: Benjamin Herrenschmidt CC: Paul Mackerras CC: Michael Ellerman CC: Dave Watson CC: Alan Stern CC: Will Deacon CC: Andy Lutomirski CC: Alice Ferrazzi CC: Paul Elder CC: linux-kselftest@vger.kernel.org CC: linux-arch@vger.kernel.org --- .../testing/selftests/membarrier/membarrier_test.c | 73 ++++++++++++++++++++++ 1 file changed, 73 insertions(+) diff --git a/tools/testing/selftests/membarrier/membarrier_test.c b/tools/testing/selftests/membarrier/membarrier_test.c index eec39a0e1f77..22bffd55a523 100644 --- a/tools/testing/selftests/membarrier/membarrier_test.c +++ b/tools/testing/selftests/membarrier/membarrier_test.c @@ -132,6 +132,63 @@ static int test_membarrier_private_expedited_success(void) return 0; } +static int test_membarrier_private_expedited_sync_core_fail(void) +{ + int cmd = MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE, flags = 0; + const char *test_name = "sys membarrier MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE not registered failure"; + + if (sys_membarrier(cmd, flags) != -1) { + ksft_exit_fail_msg( + "%s test: flags = %d. Should fail, but passed\n", + test_name, flags); + } + if (errno != EPERM) { + ksft_exit_fail_msg( + "%s test: flags = %d. Should return (%d: \"%s\"), but returned (%d: \"%s\").\n", + test_name, flags, EPERM, strerror(EPERM), + errno, strerror(errno)); + } + + ksft_test_result_pass( + "%s test: flags = %d, errno = %d\n", + test_name, flags, errno); + return 0; +} + +static int test_membarrier_register_private_expedited_sync_core_success(void) +{ + int cmd = MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE, flags = 0; + const char *test_name = "sys membarrier MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE"; + + if (sys_membarrier(cmd, flags) != 0) { + ksft_exit_fail_msg( + "%s test: flags = %d, errno = %d\n", + test_name, flags, errno); + } + + ksft_test_result_pass( + "%s test: flags = %d\n", + test_name, flags); + return 0; +} + +static int test_membarrier_private_expedited_sync_core_success(void) +{ + int cmd = MEMBARRIER_CMD_PRIVATE_EXPEDITED, flags = 0; + const char *test_name = "sys membarrier MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE"; + + if (sys_membarrier(cmd, flags) != 0) { + ksft_exit_fail_msg( + "%s test: flags = %d, errno = %d\n", + test_name, flags, errno); + } + + ksft_test_result_pass( + "%s test: flags = %d\n", + test_name, flags); + return 0; +} + static int test_membarrier_register_global_expedited_success(void) { int cmd = MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED, flags = 0; @@ -188,6 +245,22 @@ static int test_membarrier(void) status = test_membarrier_private_expedited_success(); if (status) return status; + status = sys_membarrier(MEMBARRIER_CMD_QUERY, 0); + if (status < 0) { + ksft_test_result_fail("sys_membarrier() failed\n"); + return status; + } + if (status & MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE) { + status = test_membarrier_private_expedited_sync_core_fail(); + if (status) + return status; + status = test_membarrier_register_private_expedited_sync_core_success(); + if (status) + return status; + status = test_membarrier_private_expedited_sync_core_success(); + if (status) + return status; + } /* * It is valid to send a global membarrier from a non-registered * process. -- 2.11.0