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+;; @file
+; STAM - Statistics Manager.
+;
+
+;
+; Copyright (C) 2006-2022 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
+;
+
+%ifndef ___VBox_vmm_stam_mac__
+%define ___VBox_vmm_stam_mac__
+
+
+%ifndef VBOX_WITH_STATISTICS
+ %ifdef DEBUG
+ %define VBOX_WITH_STATISTICS
+ %endif
+%endif
+
+
+
+;;
+; Counter sample - STAMTYPE_COUNTER.
+struc STAMCOUNTER
+ .c resd 2
+endstruc
+
+;;
+; Increments a counter sample by one.
+; @param %1 Pointer to the STAMCOUNTER structure to operate on.
+%macro STAM32_COUNTER_INC 1
+%ifdef VBOX_WITH_STATISTICS
+ push ebx
+ mov ebx, %1
+ inc dword [ebx + STAMCOUNTER.c]
+ adc dword [ebx + STAMCOUNTER.c + 1], byte 0
+ pop ebx
+%endif
+%endmacro
+
+%macro STAM64_COUNTER_INC 1
+%ifdef VBOX_WITH_STATISTICS
+ push rbx
+ mov rbx, %1
+ inc qword [rbx + STAMCOUNTER.c]
+ pop rbx
+%endif
+%endmacro
+
+%macro STAM_COUNTER_INC 1
+%ifdef VBOX_WITH_STATISTICS
+ %ifdef RT_ARCH_AMD64
+ STAM64_COUNTER_INC %1
+ %else
+ STAM32_COUNTER_INC %1
+ %endif
+%endif
+%endmacro
+
+
+;;
+; Increments a counter sample by a value.
+;
+; @param %1 Pointer to the STAMCOUNTER structure to operate on.
+; @param %2 The value to add to the counter.
+%macro STAM32_COUNTER_ADD 2
+%ifdef VBOX_WITH_STATISTICS
+ push ebx
+ mov ebx, %1
+ push eax
+ mov eax, %2
+
+ add [ebx + STAMCOUNTER.c], eax
+ adc dword [ebx + STAMCOUNTER.c], byte 0
+
+ pop eax
+ pop ebx
+%endif
+%endmacro
+
+%macro STAM64_COUNTER_ADD 2
+%ifdef VBOX_WITH_STATISTICS
+ push rbx
+ mov rbx, %1
+ push rax
+ mov rax, %2
+
+ add [rbx + STAMCOUNTER.c], rax
+
+ pop rax
+ pop rbx
+%endif
+%endmacro
+
+%macro STAM_COUNTER_ADD 2
+%ifdef VBOX_WITH_STATISTICS
+ %ifdef RT_ARCH_AMD64
+ STAM64_COUNTER_ADD %1, %2
+ %else
+ STAM32_COUNTER_ADD %1, %2
+ %endif
+%endif
+%endmacro
+
+
+;;
+; Profiling sample - STAMTYPE_PROFILE.
+struc STAMPROFILE
+ .cPeriods resd 2
+ .cTicks resd 2
+ .cTicksMax resd 2
+ .cTicksMin resd 2
+endstruc
+
+
+;;
+; Samples the start time of a profiling period.
+;
+; @param %1 Pointer to somewhere one can store a 64-bit timestamp until STAM_PROFILE_STOPP
+%macro STAM32_PROFILE_START 1
+%ifdef VBOX_WITH_STATISTICS
+ push ebx
+ mov ebx, %1
+ push eax
+ push edx
+
+ rdtsc
+ mov [ebx], eax
+ mov [ebx + 4], edx
+
+ pop edx
+ pop eax
+ pop ebx
+%endif
+%endmacro
+
+%macro STAM64_PROFILE_START 1
+%ifdef VBOX_WITH_STATISTICS
+ push rbx
+ mov rbx, %1
+ push rax
+ push rdx
+
+ rdtsc
+ mov [rbx], eax
+ mov [rbx + 4], edx
+
+ pop rdx
+ pop rax
+ pop rbx
+%endif
+%endmacro
+
+%macro STAM_PROFILE_START 1
+%ifdef VBOX_WITH_STATISTICS
+ %ifdef RT_ARCH_AMD64
+ STAM64_PROFILE_START %1
+ %else
+ STAM32_PROFILE_START %1
+ %endif
+%endif
+%endmacro
+
+
+;;
+; Samples the stop time of a profiling period and updates the sample.
+;
+; @param %1 Pointer to the STAMPROFILE structure to operate on.
+; @param %2 Pointer to where the 64-bit timestamp from STAM_PROFILE_START was stored.
+%macro STAM32_PROFILE_STOP 2
+%ifdef VBOX_WITH_STATISTICS
+ push ebx
+ mov ebx, %1
+ push eax
+ push edx
+
+ ; calc cTicks
+ push ecx
+ mov ecx, %2
+ rdtsc
+ sub eax, [ecx]
+ sbb edx, [ecx + 4]
+ pop ecx
+
+ ; update STAMPROFILE.cTicks
+ add [ebx + STAMPROFILE.cTicks], eax
+ adc [ebx + STAMPROFILE.cTicks + 4], edx
+ ; update STAMPROFILE.cPeriods
+ inc dword [ebx + STAMPROFILE.cPeriods]
+ adc dword [ebx + STAMPROFILE.cPeriods + 4], byte 0
+
+ ; update max?
+ cmp edx, [ebx + STAMPROFILE.cTicksMax + 4]
+ jb short %%not_update_max
+ ja short %%update_max
+ cmp eax, [ebx + STAMPROFILE.cTicksMax]
+ jbe short %%not_update_max
+%%update_max:
+ mov [ebx + STAMPROFILE.cTicksMax], eax
+ mov [ebx + STAMPROFILE.cTicksMax + 4], edx
+%%not_update_max:
+
+ ; update min?
+ cmp edx, [ebx + STAMPROFILE.cTicksMin + 4]
+ ja short %%not_update_min
+ jb short %%update_min
+ cmp eax, [ebx + STAMPROFILE.cTicksMin]
+ jae short %%not_update_min
+%%update_min:
+ mov [ebx + STAMPROFILE.cTicksMin], eax
+ mov [ebx + STAMPROFILE.cTicksMin + 4], edx
+%%not_update_min:
+
+ pop edx
+ pop eax
+ pop ebx
+%endif
+%endmacro
+
+%macro STAM64_PROFILE_STOP 2
+%ifdef VBOX_WITH_STATISTICS
+ push rbx
+ mov rbx, %1
+ push rax
+ push rdx
+
+ ; calc cTicks
+ push rcx
+ mov rcx, %2
+ rdtsc
+ sub rax, [ecx]
+ sbb rdx, [ecx + 4]
+ pop rcx
+
+ ; update STAMPROFILE.cTicks
+ shl rdx, 32
+ or rdx, rax
+ add [rbx + STAMPROFILE.cTicks], rdx
+ ; update STAMPROFILE.cPeriods
+ inc qword [rbx + STAMPROFILE.cPeriods]
+
+ ; update max?
+ cmp rdx, [rbx + STAMPROFILE.cTicksMax]
+ jbe short %%not_update_max
+ mov [rbx + STAMPROFILE.cTicksMax], rdx
+%%not_update_max:
+
+ ; update min?
+ cmp rdx, [rbx + STAMPROFILE.cTicksMin]
+ jae short %%not_update_min
+ mov [rbx + STAMPROFILE.cTicksMin], rax
+%%not_update_min:
+
+ pop rdx
+ pop rax
+ pop rbx
+%endif
+%endmacro
+
+%macro STAM_PROFILE_STOP 2
+%ifdef VBOX_WITH_STATISTICS
+ %ifdef RT_ARCH_AMD64
+ STAM64_PROFILE_STOP %1, %2
+ %else
+ STAM32_PROFILE_STOP %1, %2
+ %endif
+%endif
+%endmacro
+
+
+
+struc STAMPROFILEADV
+ .cPeriods resd 2
+ .cTicks resd 2
+ .cTicksMax resd 2
+ .cTicksMin resd 2
+ .tsStart resd 2
+endstruc
+
+
+;;
+; Samples the start time of a profiling period.
+;
+; @param %1 Pointer to the STAMPROFILEADV structure to operate on.
+%macro STAM32_PROFILE_ADV_START 1
+%ifdef VBOX_WITH_STATISTICS
+ push ecx
+ mov ecx, %1
+ lea ecx, [ecx + STAMPROFILEADV.tsStart]
+ STAM32_PROFILE_START ecx
+ pop ecx
+%endif
+%endmacro
+
+%macro STAM64_PROFILE_ADV_START 1
+%ifdef VBOX_WITH_STATISTICS
+ push rcx
+ mov rcx, %1
+ lea rcx, [rcx + STAMPROFILEADV.tsStart]
+ STAM64_PROFILE_START rcx
+ pop rcx
+%endif
+%endmacro
+
+%macro STAM_PROFILE_ADV_START 1
+%ifdef VBOX_WITH_STATISTICS
+ %ifdef RT_ARCH_AMD64
+ STAM64_PROFILE_ADV_START %1
+ %else
+ STAM32_PROFILE_ADV_START %1
+ %endif
+%endif
+%endmacro
+
+
+;;
+; Samples the stop time of a profiling period and updates the sample.
+;
+; @param %1 Pointer to the STAMPROFILEADV structure to operate on.
+
+%macro STAM32_PROFILE_ADV_STOP 1
+%ifdef VBOX_WITH_STATISTICS
+ push ecx
+ mov ecx, %1
+ lea ecx, [ecx + STAMPROFILEADV.tsStart]
+ cmp dword [ecx], byte 0
+ jnz short %%doit
+ cmp dword [ecx + 4], byte 0
+ jz short %%dont
+%%doit:
+ STAM32_PROFILE_STOP %1, ecx
+%%dont:
+ mov dword [ecx], 0
+ mov dword [ecx + 4], 0
+ pop ecx
+%endif
+%endmacro
+
+%macro STAM64_PROFILE_ADV_STOP 1
+%ifdef VBOX_WITH_STATISTICS
+ push rcx
+ mov rcx, %1
+ lea rcx, [rcx + STAMPROFILEADV.tsStart]
+ cmp qword [rcx], byte 0
+ jz short %%dont
+%%doit:
+ STAM64_PROFILE_STOP %1, rcx
+%%dont:
+ mov qword [rcx], 0
+ pop rcx
+%endif
+%endmacro
+
+%macro STAM_PROFILE_ADV_STOP 1
+%ifdef VBOX_WITH_STATISTICS
+ %ifdef RT_ARCH_AMD64
+ STAM64_PROFILE_ADV_STOP %1
+ %else
+ STAM32_PROFILE_ADV_STOP %1
+ %endif
+%endif
+%endmacro
+
+
+
+%endif
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