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-rw-r--r--src/VBox/ValidationKit/bootsectors/bs3-locking-1.c246
1 files changed, 246 insertions, 0 deletions
diff --git a/src/VBox/ValidationKit/bootsectors/bs3-locking-1.c b/src/VBox/ValidationKit/bootsectors/bs3-locking-1.c
new file mode 100644
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--- /dev/null
+++ b/src/VBox/ValidationKit/bootsectors/bs3-locking-1.c
@@ -0,0 +1,246 @@
+/* $Id: bs3-locking-1.c $ */
+/** @file
+ * BS3Kit - bs3-locking-1, 16-bit C code.
+ */
+
+/*
+ * Copyright (C) 2007-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+
+/*********************************************************************************************************************************
+* Header Files *
+*********************************************************************************************************************************/
+#include <bs3kit.h>
+#include <iprt/asm-amd64-x86.h>
+
+#include <VBox/VMMDevTesting.h>
+
+
+/*********************************************************************************************************************************
+* Global Variables *
+*********************************************************************************************************************************/
+static struct
+{
+ const char * BS3_FAR pszName;
+ uint32_t cInnerLoops;
+ uint32_t uCtrlLo;
+ uint32_t uCtrlHi;
+} g_aLockingTests[] =
+{
+#if 1
+# if 1 /* no contention benchmark */
+ {
+ "None 0us/inf/0k",
+ _32K,
+ 0,
+ 0,
+ },
+ {
+ "RW None Exl 0us/inf/0k",
+ _32K,
+ 0,
+ 0 | VMMDEV_TESTING_LOCKED_HI_TYPE_RW,
+ },
+# endif
+ {
+ "RW None Shr 0us/inf/0k",
+ _32K,
+ 0,
+ 0 | VMMDEV_TESTING_LOCKED_HI_TYPE_RW | VMMDEV_TESTING_LOCKED_HI_EMT_SHARED,
+ },
+# if 1
+ {
+ "Contention 500us/250us/64k",
+ 2000 + 16384,
+ 500 | (UINT32_C(250) << VMMDEV_TESTING_LOCKED_LO_WAIT_SHIFT),
+ 64 | VMMDEV_TESTING_LOCKED_HI_ENABLED,
+ },
+ {
+ "Contention 100us/50us/8k",
+ 10000 + 4096,
+ 100 | (UINT32_C(50) << VMMDEV_TESTING_LOCKED_LO_WAIT_SHIFT),
+ 8 | VMMDEV_TESTING_LOCKED_HI_ENABLED,
+ },
+ {
+ "Contention 10us/1us/0k",
+ 16384 + 4096,
+ 10 | (UINT32_C(1) << VMMDEV_TESTING_LOCKED_LO_WAIT_SHIFT),
+ 0 | VMMDEV_TESTING_LOCKED_HI_ENABLED,
+ },
+ {
+ "Contention 500us/250us/64k poke",
+ 2000 + 16384,
+ 500 | (UINT32_C(250) << VMMDEV_TESTING_LOCKED_LO_WAIT_SHIFT),
+ 64 | VMMDEV_TESTING_LOCKED_HI_ENABLED | VMMDEV_TESTING_LOCKED_HI_POKE,
+ },
+ {
+ "Contention 100us/50us/1k poke",
+ 10000 + 4096,
+ 100 | (UINT32_C(50) << VMMDEV_TESTING_LOCKED_LO_WAIT_SHIFT),
+ 1 | VMMDEV_TESTING_LOCKED_HI_ENABLED | VMMDEV_TESTING_LOCKED_HI_POKE,
+ },
+ {
+ "Contention 500us/250us/64k poke void",
+ 2000 + 16384,
+ 500 | (UINT32_C(250) << VMMDEV_TESTING_LOCKED_LO_WAIT_SHIFT),
+ 64 | VMMDEV_TESTING_LOCKED_HI_ENABLED | VMMDEV_TESTING_LOCKED_HI_POKE | VMMDEV_TESTING_LOCKED_HI_BUSY_SUCCESS
+ },
+ {
+ "Contention 50us/25us/8k poke void",
+ 20000 + 4096,
+ 50 | (UINT32_C(25) << VMMDEV_TESTING_LOCKED_LO_WAIT_SHIFT),
+ 1 | VMMDEV_TESTING_LOCKED_HI_ENABLED | VMMDEV_TESTING_LOCKED_HI_POKE | VMMDEV_TESTING_LOCKED_HI_BUSY_SUCCESS
+ },
+# endif
+# if 1
+ {
+ "RW Contention Exl/Exl 50us/25us/16k",
+ 20000 + 4096,
+ 50 | (UINT32_C(25) << VMMDEV_TESTING_LOCKED_LO_WAIT_SHIFT),
+ 16 | VMMDEV_TESTING_LOCKED_HI_ENABLED | VMMDEV_TESTING_LOCKED_HI_TYPE_RW
+ },
+# endif
+ {
+ "RW Contention Shr/Exl 50us/25us/16k",
+ 20000 + 4096,
+ 50 | (UINT32_C(25) << VMMDEV_TESTING_LOCKED_LO_WAIT_SHIFT),
+ 16 | VMMDEV_TESTING_LOCKED_HI_ENABLED | VMMDEV_TESTING_LOCKED_HI_TYPE_RW | VMMDEV_TESTING_LOCKED_HI_THREAD_SHARED
+ },
+# if 1
+ {
+ "RW Contention Exl/Exl 50us/25us/16k poke",
+ 20000 + 4096,
+ 50 | (UINT32_C(25) << VMMDEV_TESTING_LOCKED_LO_WAIT_SHIFT),
+ 16 | VMMDEV_TESTING_LOCKED_HI_ENABLED | VMMDEV_TESTING_LOCKED_HI_TYPE_RW | VMMDEV_TESTING_LOCKED_HI_POKE
+ },
+# endif
+ {
+ "RW Contention Shr/Exl 50us/25us/16k poke",
+ 20000 + 4096,
+ 50 | (UINT32_C(25) << VMMDEV_TESTING_LOCKED_LO_WAIT_SHIFT),
+ 16 | VMMDEV_TESTING_LOCKED_HI_ENABLED | VMMDEV_TESTING_LOCKED_HI_TYPE_RW | VMMDEV_TESTING_LOCKED_HI_THREAD_SHARED
+ | VMMDEV_TESTING_LOCKED_HI_POKE | VMMDEV_TESTING_LOCKED_HI_BUSY_SUCCESS
+ },
+# if 1
+ {
+ "RW Contention Exl/Exl 50us/25us/16k poke void",
+ 20000 + 4096,
+ 50 | (UINT32_C(25) << VMMDEV_TESTING_LOCKED_LO_WAIT_SHIFT),
+ 16 | VMMDEV_TESTING_LOCKED_HI_ENABLED | VMMDEV_TESTING_LOCKED_HI_TYPE_RW | VMMDEV_TESTING_LOCKED_HI_POKE
+ },
+# endif
+ {
+ "RW Contention Shr/Exl 50us/25us/16k poke void",
+ 20000 + 4096,
+ 50 | (UINT32_C(25) << VMMDEV_TESTING_LOCKED_LO_WAIT_SHIFT),
+ 16 | VMMDEV_TESTING_LOCKED_HI_ENABLED | VMMDEV_TESTING_LOCKED_HI_TYPE_RW | VMMDEV_TESTING_LOCKED_HI_THREAD_SHARED
+ | VMMDEV_TESTING_LOCKED_HI_POKE | VMMDEV_TESTING_LOCKED_HI_BUSY_SUCCESS
+ },
+#endif
+
+ {
+ "RW Contention Exl/Shr 50us/25us/16k",
+ 20000 + 4096,
+ 50 | (UINT32_C(25) << VMMDEV_TESTING_LOCKED_LO_WAIT_SHIFT),
+ 16 | VMMDEV_TESTING_LOCKED_HI_ENABLED | VMMDEV_TESTING_LOCKED_HI_TYPE_RW | VMMDEV_TESTING_LOCKED_HI_EMT_SHARED
+ },
+ {
+ "RW Contention Exl/Shr poke 250us/25us/16k",
+ 10000 + 4096,
+ 250 | (UINT32_C(25) << VMMDEV_TESTING_LOCKED_LO_WAIT_SHIFT),
+ 16 | VMMDEV_TESTING_LOCKED_HI_ENABLED | VMMDEV_TESTING_LOCKED_HI_TYPE_RW | VMMDEV_TESTING_LOCKED_HI_EMT_SHARED
+ | VMMDEV_TESTING_LOCKED_HI_POKE
+ },
+ {
+ "RW Contention Exl/Shr poke void 250us/25us/16k",
+ 10000 + 4096,
+ 250 | (UINT32_C(25) << VMMDEV_TESTING_LOCKED_LO_WAIT_SHIFT),
+ 16 | VMMDEV_TESTING_LOCKED_HI_ENABLED | VMMDEV_TESTING_LOCKED_HI_TYPE_RW | VMMDEV_TESTING_LOCKED_HI_EMT_SHARED
+ | VMMDEV_TESTING_LOCKED_HI_POKE | VMMDEV_TESTING_LOCKED_HI_BUSY_SUCCESS
+ },
+ {
+ "RW None Shr/Shr 50us/25us/16k",
+ 20000 + 4096,
+ 50 | (UINT32_C(25) << VMMDEV_TESTING_LOCKED_LO_WAIT_SHIFT),
+ 16 | VMMDEV_TESTING_LOCKED_HI_ENABLED | VMMDEV_TESTING_LOCKED_HI_TYPE_RW
+ | VMMDEV_TESTING_LOCKED_HI_THREAD_SHARED | VMMDEV_TESTING_LOCKED_HI_EMT_SHARED
+ },
+};
+
+
+BS3_DECL(void) Main_rm()
+{
+ uint64_t const cNsPerTest = RT_NS_15SEC;
+ unsigned i;
+
+ Bs3InitAll_rm();
+ Bs3TestInit("bs3-locking-1");
+
+ /*
+ * Since this is a host-side test and we don't have raw-mode any more, we
+ * just stay in raw-mode when doing the test.
+ */
+ for (i = 0; i < RT_ELEMENTS(g_aLockingTests); i++)
+ {
+ uint64_t const nsStart = Bs3TestNow();
+ uint64_t cNsElapsed = 0;
+ uint32_t cTotal = 0;
+ uint32_t j;
+
+ Bs3TestSub(g_aLockingTests[i].pszName);
+ ASMOutU32(VMMDEV_TESTING_IOPORT_LOCKED_LO, g_aLockingTests[i].uCtrlLo);
+ ASMOutU32(VMMDEV_TESTING_IOPORT_LOCKED_HI, g_aLockingTests[i].uCtrlHi);
+
+ for (j = 0; j < _2M && cTotal < _1G; j++)
+ {
+
+ /* The inner loop should avoid calling Bs3TestNow too often, while not overshooting the . */
+ unsigned iInner = (unsigned)g_aLockingTests[i].cInnerLoops;
+ cTotal += iInner;
+ while (iInner-- > 0)
+ ASMInU32(VMMDEV_TESTING_IOPORT_LOCKED_LO);
+
+ cNsElapsed = Bs3TestNow() - nsStart;
+ if (cNsElapsed >= cNsPerTest)
+ break;
+ }
+
+ /* Disable locking. */
+ ASMOutU32(VMMDEV_TESTING_IOPORT_LOCKED_HI, 0);
+
+ Bs3TestValue("Loops", cTotal, VMMDEV_TESTING_UNIT_OCCURRENCES);
+ Bs3TestValue("Elapsed", cNsElapsed, VMMDEV_TESTING_UNIT_NS);
+ Bs3TestValue("PerLoop", cNsElapsed / cTotal, VMMDEV_TESTING_UNIT_NS_PER_OCCURRENCE);
+ }
+
+ Bs3TestTerm();
+}
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-13 07:12:47 +0000