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Tue, 10 Dec 2024 00:06:07 +0000 (GMT) Received: from smtpav04.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5BD9020040; Tue, 10 Dec 2024 00:06:05 +0000 (GMT) Received: from gfwr518.rchland.ibm.com (unknown [9.10.239.106]) by smtpav04.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 10 Dec 2024 00:06:05 +0000 (GMT) From: Michael Kowal To: qemu-devel@nongnu.org Cc: qemu-ppc@nongnu.org, fbarrat@linux.ibm.com, npiggin@gmail.com, milesg@linux.ibm.com, danielhb413@gmail.com, david@gibson.dropbear.id.au, harshpb@linux.ibm.com, thuth@redhat.com, lvivier@redhat.com, pbonzini@redhat.com Subject: [PATCH v2 08/14] qtest/xive: Add group-interrupt test Date: Mon, 9 Dec 2024 18:05:18 -0600 Message-Id: <20241210000527.9541-16-kowal@linux.ibm.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241210000527.9541-1-kowal@linux.ibm.com> References: <20241210000527.9541-1-kowal@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: Vek5K9z4HfFMKMvU58-bPpv4w5BknzNr X-Proofpoint-ORIG-GUID: 54bWNOFd4CGvAR28QxFS4yxGoIJFdwBp X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-15_01,2024-10-11_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 impostorscore=0 lowpriorityscore=0 spamscore=0 clxscore=1015 mlxscore=0 malwarescore=0 adultscore=0 phishscore=0 suspectscore=0 mlxlogscore=999 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2412090187 Received-SPF: pass client-ip=148.163.156.1; envelope-from=kowal@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Frederic Barrat Add XIVE2 tests for group interrupts and group interrupts that have been backlogged. Signed-off-by: Frederic Barrat Signed-off-by: Michael Kowal --- tests/qtest/pnv-xive2-test.c | 160 +++++++++++++++++++++++++++++++++++ 1 file changed, 160 insertions(+) diff --git a/tests/qtest/pnv-xive2-test.c b/tests/qtest/pnv-xive2-test.c index dd19e88861..a4d06550ee 100644 --- a/tests/qtest/pnv-xive2-test.c +++ b/tests/qtest/pnv-xive2-test.c @@ -2,6 +2,8 @@ * QTest testcase for PowerNV 10 interrupt controller (xive2) * - Test irq to hardware thread * - Test 'Pull Thread Context to Odd Thread Reporting Line' + * - Test irq to hardware group + * - Test irq to hardware group going through backlog * * Copyright (c) 2024, IBM Corporation. * @@ -315,6 +317,158 @@ static void test_pull_thread_ctx_to_odd_thread_cl(QTestState *qts) word2 = get_tima32(qts, target_pir, TM_QW3_HV_PHYS + TM_WORD2); g_assert_cmphex(xive_get_field32(TM_QW3W2_VT, word2), ==, 0); } + +static void test_hw_group_irq(QTestState *qts) +{ + uint32_t irq = 100; + uint32_t irq_data = 0xdeadbeef; + uint32_t end_index = 23; + uint32_t chosen_one; + uint32_t target_nvp = 0x81; /* group size = 4 */ + uint8_t priority = 6; + uint32_t reg32; + uint16_t reg16; + uint8_t pq, nsr, cppr; + + printf("# ============================================================\n"); + printf("# Testing irq %d to hardware group of size 4\n", irq); + + /* irq config */ + set_eas(qts, irq, end_index, irq_data); + set_end(qts, end_index, target_nvp, priority, true /* group */); + + /* enable and trigger irq */ + get_esb(qts, irq, XIVE_EOI_PAGE, XIVE_ESB_SET_PQ_00); + set_esb(qts, irq, XIVE_TRIGGER_PAGE, 0, 0); + + /* check irq is raised on cpu */ + pq = get_esb(qts, irq, XIVE_EOI_PAGE, XIVE_ESB_GET); + g_assert_cmpuint(pq, ==, XIVE_ESB_PENDING); + + /* find the targeted vCPU */ + for (chosen_one = 0; chosen_one < SMT; chosen_one++) { + reg32 = get_tima32(qts, chosen_one, TM_QW3_HV_PHYS + TM_WORD0); + nsr = reg32 >> 24; + if (nsr == 0x82) { + break; + } + } + g_assert_cmphex(chosen_one, <, SMT); + cppr = (reg32 >> 16) & 0xFF; + g_assert_cmphex(nsr, ==, 0x82); + g_assert_cmphex(cppr, ==, 0xFF); + + /* ack the irq */ + reg16 = get_tima16(qts, chosen_one, TM_SPC_ACK_HV_REG); + nsr = reg16 >> 8; + cppr = reg16 & 0xFF; + g_assert_cmphex(nsr, ==, 0x82); + g_assert_cmphex(cppr, ==, priority); + + /* check irq data is what was configured */ + reg32 = qtest_readl(qts, xive_get_queue_addr(end_index)); + g_assert_cmphex((reg32 & 0x7fffffff), ==, (irq_data & 0x7fffffff)); + + /* End Of Interrupt */ + set_esb(qts, irq, XIVE_EOI_PAGE, XIVE_ESB_STORE_EOI, 0); + pq = get_esb(qts, irq, XIVE_EOI_PAGE, XIVE_ESB_GET); + g_assert_cmpuint(pq, ==, XIVE_ESB_RESET); + + /* reset CPPR */ + set_tima8(qts, chosen_one, TM_QW3_HV_PHYS + TM_CPPR, 0xFF); + reg32 = get_tima32(qts, chosen_one, TM_QW3_HV_PHYS + TM_WORD0); + nsr = reg32 >> 24; + cppr = (reg32 >> 16) & 0xFF; + g_assert_cmphex(nsr, ==, 0x00); + g_assert_cmphex(cppr, ==, 0xFF); +} + +static void test_hw_group_irq_backlog(QTestState *qts) +{ + uint32_t irq = 31; + uint32_t irq_data = 0x01234567; + uint32_t end_index = 129; + uint32_t target_nvp = 0x81; /* group size = 4 */ + uint32_t chosen_one = 3; + uint8_t blocking_priority, priority = 3; + uint32_t reg32; + uint16_t reg16; + uint8_t pq, nsr, cppr, lsmfb, i; + + printf("# ============================================================\n"); + printf("# Testing irq %d to hardware group of size 4 going through " \ + "backlog\n", + irq); + + /* + * set current priority of all threads in the group to something + * higher than what we're about to trigger + */ + blocking_priority = priority - 1; + for (i = 0; i < SMT; i++) { + set_tima8(qts, i, TM_QW3_HV_PHYS + TM_CPPR, blocking_priority); + } + + /* irq config */ + set_eas(qts, irq, end_index, irq_data); + set_end(qts, end_index, target_nvp, priority, true /* group */); + + /* enable and trigger irq */ + get_esb(qts, irq, XIVE_EOI_PAGE, XIVE_ESB_SET_PQ_00); + set_esb(qts, irq, XIVE_TRIGGER_PAGE, 0, 0); + + /* check irq is raised on cpu */ + pq = get_esb(qts, irq, XIVE_EOI_PAGE, XIVE_ESB_GET); + g_assert_cmpuint(pq, ==, XIVE_ESB_PENDING); + + /* check no interrupt is pending on the 2 possible targets */ + for (i = 0; i < SMT; i++) { + reg32 = get_tima32(qts, i, TM_QW3_HV_PHYS + TM_WORD0); + nsr = reg32 >> 24; + cppr = (reg32 >> 16) & 0xFF; + lsmfb = reg32 & 0xFF; + g_assert_cmphex(nsr, ==, 0x0); + g_assert_cmphex(cppr, ==, blocking_priority); + g_assert_cmphex(lsmfb, ==, priority); + } + + /* lower priority of one thread */ + set_tima8(qts, chosen_one, TM_QW3_HV_PHYS + TM_CPPR, priority + 1); + + /* check backlogged interrupt is presented */ + reg32 = get_tima32(qts, chosen_one, TM_QW3_HV_PHYS + TM_WORD0); + nsr = reg32 >> 24; + cppr = (reg32 >> 16) & 0xFF; + g_assert_cmphex(nsr, ==, 0x82); + g_assert_cmphex(cppr, ==, priority + 1); + + /* ack the irq */ + reg16 = get_tima16(qts, chosen_one, TM_SPC_ACK_HV_REG); + nsr = reg16 >> 8; + cppr = reg16 & 0xFF; + g_assert_cmphex(nsr, ==, 0x82); + g_assert_cmphex(cppr, ==, priority); + + /* check irq data is what was configured */ + reg32 = qtest_readl(qts, xive_get_queue_addr(end_index)); + g_assert_cmphex((reg32 & 0x7fffffff), ==, (irq_data & 0x7fffffff)); + + /* End Of Interrupt */ + set_esb(qts, irq, XIVE_EOI_PAGE, XIVE_ESB_STORE_EOI, 0); + pq = get_esb(qts, irq, XIVE_EOI_PAGE, XIVE_ESB_GET); + g_assert_cmpuint(pq, ==, XIVE_ESB_RESET); + + /* reset CPPR */ + set_tima8(qts, chosen_one, TM_QW3_HV_PHYS + TM_CPPR, 0xFF); + reg32 = get_tima32(qts, chosen_one, TM_QW3_HV_PHYS + TM_WORD0); + nsr = reg32 >> 24; + cppr = (reg32 >> 16) & 0xFF; + lsmfb = reg32 & 0xFF; + g_assert_cmphex(nsr, ==, 0x00); + g_assert_cmphex(cppr, ==, 0xFF); + g_assert_cmphex(lsmfb, ==, 0xFF); +} + static void test_xive(void) { QTestState *qts; @@ -330,6 +484,12 @@ static void test_xive(void) /* omit reset_state here and use settings from test_hw_irq */ test_pull_thread_ctx_to_odd_thread_cl(qts); + reset_state(qts); + test_hw_group_irq(qts); + + reset_state(qts); + test_hw_group_irq_backlog(qts); + reset_state(qts); test_flush_sync_inject(qts);