diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml new file mode 100644 index 0000000..c3b9220 --- /dev/null +++ b/.github/workflows/build.yml @@ -0,0 +1,90 @@ +name: Build + +on: + - pull_request + - push + +jobs: + build: + runs-on: ${{ matrix.os }} + + strategy: + fail-fast: false + + matrix: + os: [ubuntu-latest, windows-latest] + build_type: [Release] + + include: + - os: windows-latest + c_compiler: cl + + - os: ubuntu-latest + c_compiler: gcc + + steps: + - name: Checkout + uses: actions/checkout@v4 + + - if: runner.os == 'Linux' + name: Install CUDA toolkit on Linux + uses: Jimver/cuda-toolkit@v0.2.16 + with: + method: network + sub-packages: '["nvcc", "nvml-dev"]' + + - if: runner.os == 'Windows' + name: Install CUDA toolkit on Windows + uses: Jimver/cuda-toolkit@v0.2.16 + with: + method: network + sub-packages: '["cudart", "nvcc", "nvml_dev"]' + + - if: runner.os == 'Linux' + name: Install NVAPI headers on Linux + run: ./nvapi.sh + + - if: runner.os == 'Windows' + name: Install NVAPI headers on Windows + run: .\nvapi.ps1 + + - name: Configure project + run: > + cmake + -B ${{ github.workspace }}/build + -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} + -DCMAKE_C_COMPILER=${{ matrix.c_compiler }} + -S ${{ github.workspace }} + + - name: Build project + run: > + cmake + --build ${{ github.workspace }}/build + --config ${{ matrix.build_type }} + + - name: Upload artifact + uses: actions/upload-artifact@v4 + with: + name: artifact-${{ matrix.os }} + path: | + build/Release/nvidia-pstated.exe + build/nvidia-pstated + + publish: + if: github.event_name == 'push' && contains(github.ref, 'refs/tags/') + needs: build + runs-on: ubuntu-latest + + permissions: + contents: write + + steps: + - name: Download artifact + uses: actions/download-artifact@v4 + + - name: Create release + uses: softprops/action-gh-release@v2 + with: + files: | + */Release/nvidia-pstated.exe + */nvidia-pstated diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..eb81be9 --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +build/ +nvapi/ +nvapi.tar diff --git a/CMakeLists.txt b/CMakeLists.txt new file mode 100644 index 0000000..614f0fe --- /dev/null +++ b/CMakeLists.txt @@ -0,0 +1,31 @@ +# Specify the minimum required version of CMake +cmake_minimum_required(VERSION 3.17) + +# Define the project name and programming language +project(nvidia-pstated C) + +# Find the CUDAToolkit package +find_package(CUDAToolkit REQUIRED COMPONENTS nvml) + +# Define the executable target +add_executable(nvidia-pstated + src/main.c + src/nvapi.c +) + +# Include directories for the target +target_include_directories(nvidia-pstated SYSTEM PRIVATE + nvapi +) + +# Link libraries +target_link_libraries(nvidia-pstated PRIVATE + CUDA::nvml +) + +# Conditional linking for Linux platform +if(UNIX AND NOT APPLE) + target_link_libraries(nvidia-pstated PRIVATE + dl + ) +endif() diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..f288702 --- /dev/null +++ b/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. By contrast, +the GNU General Public License is intended to guarantee your freedom to +share and change all versions of a program--to make sure it remains free +software for all its users. We, the Free Software Foundation, use the +GNU General Public License for most of our software; it applies also to +any other work released this way by its authors. You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +them if you wish), that you receive source code or can get it if you +want it, that you can change the software or use pieces of it in new +free programs, and that you know you can do these things. + + To protect your rights, we need to prevent others from denying you +these rights or asking you to surrender the rights. Therefore, you have +certain responsibilities if you distribute copies of the software, or if +you modify it: responsibilities to respect the freedom of others. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must pass on to the recipients the same +freedoms that you received. You must make sure that they, too, receive +or can get the source code. And you must show them these terms so they +know their rights. + + Developers that use the GNU GPL protect your rights with two steps: +(1) assert copyright on the software, and (2) offer you this License +giving you legal permission to copy, distribute and/or modify it. + + For the developers' and authors' protection, the GPL clearly explains +that there is no warranty for this free software. For both users' and +authors' sake, the GPL requires that modified versions be marked as +changed, so that their problems will not be attributed erroneously to +authors of previous versions. + + Some devices are designed to deny users access to install or run +modified versions of the software inside them, although the manufacturer +can do so. This is fundamentally incompatible with the aim of +protecting users' freedom to change the software. The systematic +pattern of such abuse occurs in the area of products for individuals to +use, which is precisely where it is most unacceptable. Therefore, we +have designed this version of the GPL to prohibit the practice for those +products. If such problems arise substantially in other domains, we +stand ready to extend this provision to those domains in future versions +of the GPL, as needed to protect the freedom of users. + + Finally, every program is threatened constantly by software patents. +States should not allow patents to restrict development and use of +software on general-purpose computers, but in those that do, we wish to +avoid the special danger that patents applied to a free program could +make it effectively proprietary. To prevent this, the GPL assures that +patents cannot be used to render the program non-free. + + The precise terms and conditions for copying, distribution and +modification follow. + + TERMS AND CONDITIONS + + 0. Definitions. + + "This License" refers to version 3 of the GNU General Public License. + + "Copyright" also means copyright-like laws that apply to other kinds of +works, such as semiconductor masks. + + "The Program" refers to any copyrightable work licensed under this +License. Each licensee is addressed as "you". "Licensees" and +"recipients" may be individuals or organizations. + + To "modify" a work means to copy from or adapt all or part of the work +in a fashion requiring copyright permission, other than the making of an +exact copy. The resulting work is called a "modified version" of the +earlier work or a work "based on" the earlier work. + + A "covered work" means either the unmodified Program or a work based +on the Program. + + To "propagate" a work means to do anything with it that, without +permission, would make you directly or secondarily liable for +infringement under applicable copyright law, except executing it on a +computer or modifying a private copy. Propagation includes copying, +distribution (with or without modification), making available to the +public, and in some countries other activities as well. + + To "convey" a work means any kind of propagation that enables other +parties to make or receive copies. Mere interaction with a user through +a computer network, with no transfer of a copy, is not conveying. + + An interactive user interface displays "Appropriate Legal Notices" +to the extent that it includes a convenient and prominently visible +feature that (1) displays an appropriate copyright notice, and (2) +tells the user that there is no warranty for the work (except to the +extent that warranties are provided), that licensees may convey the +work under this License, and how to view a copy of this License. If +the interface presents a list of user commands or options, such as a +menu, a prominent item in the list meets this criterion. + + 1. Source Code. + + The "source code" for a work means the preferred form of the work +for making modifications to it. "Object code" means any non-source +form of a work. + + A "Standard Interface" means an interface that either is an official +standard defined by a recognized standards body, or, in the case of +interfaces specified for a particular programming language, one that +is widely used among developers working in that language. + + The "System Libraries" of an executable work include anything, other +than the work as a whole, that (a) is included in the normal form of +packaging a Major Component, but which is not part of that Major +Component, and (b) serves only to enable use of the work with that +Major Component, or to implement a Standard Interface for which an +implementation is available to the public in source code form. A +"Major Component", in this context, means a major essential component +(kernel, window system, and so on) of the specific operating system +(if any) on which the executable work runs, or a compiler used to +produce the work, or an object code interpreter used to run it. + + The "Corresponding Source" for a work in object code form means all +the source code needed to generate, install, and (for an executable +work) run the object code and to modify the work, including scripts to +control those activities. However, it does not include the work's +System Libraries, or general-purpose tools or generally available free +programs which are used unmodified in performing those activities but +which are not part of the work. For example, Corresponding Source +includes interface definition files associated with source files for +the work, and the source code for shared libraries and dynamically +linked subprograms that the work is specifically designed to require, +such as by intimate data communication or control flow between those +subprograms and other parts of the work. + + The Corresponding Source need not include anything that users +can regenerate automatically from other parts of the Corresponding +Source. + + The Corresponding Source for a work in source code form is that +same work. + + 2. Basic Permissions. + + All rights granted under this License are granted for the term of +copyright on the Program, and are irrevocable provided the stated +conditions are met. This License explicitly affirms your unlimited +permission to run the unmodified Program. The output from running a +covered work is covered by this License only if the output, given its +content, constitutes a covered work. This License acknowledges your +rights of fair use or other equivalent, as provided by copyright law. + + You may make, run and propagate covered works that you do not +convey, without conditions so long as your license otherwise remains +in force. You may convey covered works to others for the sole purpose +of having them make modifications exclusively for you, or provide you +with facilities for running those works, provided that you comply with +the terms of this License in conveying all material for which you do +not control copyright. Those thus making or running the covered works +for you must do so exclusively on your behalf, under your direction +and control, on terms that prohibit them from making any copies of +your copyrighted material outside their relationship with you. + + Conveying under any other circumstances is permitted solely under +the conditions stated below. Sublicensing is not allowed; section 10 +makes it unnecessary. + + 3. Protecting Users' Legal Rights From Anti-Circumvention Law. + + No covered work shall be deemed part of an effective technological +measure under any applicable law fulfilling obligations under article +11 of the WIPO copyright treaty adopted on 20 December 1996, or +similar laws prohibiting or restricting circumvention of such +measures. + + When you convey a covered work, you waive any legal power to forbid +circumvention of technological measures to the extent such circumvention +is effected by exercising rights under this License with respect to +the covered work, and you disclaim any intention to limit operation or +modification of the work as a means of enforcing, against the work's +users, your or third parties' legal rights to forbid circumvention of +technological measures. + + 4. Conveying Verbatim Copies. + + You may convey verbatim copies of the Program's source code as you +receive it, in any medium, provided that you conspicuously and +appropriately publish on each copy an appropriate copyright notice; +keep intact all notices stating that this License and any +non-permissive terms added in accord with section 7 apply to the code; +keep intact all notices of the absence of any warranty; and give all +recipients a copy of this License along with the Program. + + You may charge any price or no price for each copy that you convey, +and you may offer support or warranty protection for a fee. + + 5. Conveying Modified Source Versions. + + You may convey a work based on the Program, or the modifications to +produce it from the Program, in the form of source code under the +terms of section 4, provided that you also meet all of these conditions: + + a) The work must carry prominent notices stating that you modified + it, and giving a relevant date. + + b) The work must carry prominent notices stating that it is + released under this License and any conditions added under section + 7. This requirement modifies the requirement in section 4 to + "keep intact all notices". + + c) You must license the entire work, as a whole, under this + License to anyone who comes into possession of a copy. This + License will therefore apply, along with any applicable section 7 + additional terms, to the whole of the work, and all its parts, + regardless of how they are packaged. This License gives no + permission to license the work in any other way, but it does not + invalidate such permission if you have separately received it. + + d) If the work has interactive user interfaces, each must display + Appropriate Legal Notices; however, if the Program has interactive + interfaces that do not display Appropriate Legal Notices, your + work need not make them do so. + + A compilation of a covered work with other separate and independent +works, which are not by their nature extensions of the covered work, +and which are not combined with it such as to form a larger program, +in or on a volume of a storage or distribution medium, is called an +"aggregate" if the compilation and its resulting copyright are not +used to limit the access or legal rights of the compilation's users +beyond what the individual works permit. Inclusion of a covered work +in an aggregate does not cause this License to apply to the other +parts of the aggregate. + + 6. Conveying Non-Source Forms. + + You may convey a covered work in object code form under the terms +of sections 4 and 5, provided that you also convey the +machine-readable Corresponding Source under the terms of this License, +in one of these ways: + + a) Convey the object code in, or embodied in, a physical product + (including a physical distribution medium), accompanied by the + Corresponding Source fixed on a durable physical medium + customarily used for software interchange. + + b) Convey the object code in, or embodied in, a physical product + (including a physical distribution medium), accompanied by a + written offer, valid for at least three years and valid for as + long as you offer spare parts or customer support for that product + model, to give anyone who possesses the object code either (1) a + copy of the Corresponding Source for all the software in the + product that is covered by this License, on a durable physical + medium customarily used for software interchange, for a price no + more than your reasonable cost of physically performing this + conveying of source, or (2) access to copy the + Corresponding Source from a network server at no charge. + + c) Convey individual copies of the object code with a copy of the + written offer to provide the Corresponding Source. This + alternative is allowed only occasionally and noncommercially, and + only if you received the object code with such an offer, in accord + with subsection 6b. + + d) Convey the object code by offering access from a designated + place (gratis or for a charge), and offer equivalent access to the + Corresponding Source in the same way through the same place at no + further charge. You need not require recipients to copy the + Corresponding Source along with the object code. If the place to + copy the object code is a network server, the Corresponding Source + may be on a different server (operated by you or a third party) + that supports equivalent copying facilities, provided you maintain + clear directions next to the object code saying where to find the + Corresponding Source. Regardless of what server hosts the + Corresponding Source, you remain obligated to ensure that it is + available for as long as needed to satisfy these requirements. + + e) Convey the object code using peer-to-peer transmission, provided + you inform other peers where the object code and Corresponding + Source of the work are being offered to the general public at no + charge under subsection 6d. + + A separable portion of the object code, whose source code is excluded +from the Corresponding Source as a System Library, need not be +included in conveying the object code work. + + A "User Product" is either (1) a "consumer product", which means any +tangible personal property which is normally used for personal, family, +or household purposes, or (2) anything designed or sold for incorporation +into a dwelling. In determining whether a product is a consumer product, +doubtful cases shall be resolved in favor of coverage. For a particular +product received by a particular user, "normally used" refers to a +typical or common use of that class of product, regardless of the status +of the particular user or of the way in which the particular user +actually uses, or expects or is expected to use, the product. A product +is a consumer product regardless of whether the product has substantial +commercial, industrial or non-consumer uses, unless such uses represent +the only significant mode of use of the product. + + "Installation Information" for a User Product means any methods, +procedures, authorization keys, or other information required to install +and execute modified versions of a covered work in that User Product from +a modified version of its Corresponding Source. The information must +suffice to ensure that the continued functioning of the modified object +code is in no case prevented or interfered with solely because +modification has been made. + + If you convey an object code work under this section in, or with, or +specifically for use in, a User Product, and the conveying occurs as +part of a transaction in which the right of possession and use of the +User Product is transferred to the recipient in perpetuity or for a +fixed term (regardless of how the transaction is characterized), the +Corresponding Source conveyed under this section must be accompanied +by the Installation Information. But this requirement does not apply +if neither you nor any third party retains the ability to install +modified object code on the User Product (for example, the work has +been installed in ROM). + + The requirement to provide Installation Information does not include a +requirement to continue to provide support service, warranty, or updates +for a work that has been modified or installed by the recipient, or for +the User Product in which it has been modified or installed. Access to a +network may be denied when the modification itself materially and +adversely affects the operation of the network or violates the rules and +protocols for communication across the network. + + Corresponding Source conveyed, and Installation Information provided, +in accord with this section must be in a format that is publicly +documented (and with an implementation available to the public in +source code form), and must require no special password or key for +unpacking, reading or copying. + + 7. Additional Terms. + + "Additional permissions" are terms that supplement the terms of this +License by making exceptions from one or more of its conditions. +Additional permissions that are applicable to the entire Program shall +be treated as though they were included in this License, to the extent +that they are valid under applicable law. If additional permissions +apply only to part of the Program, that part may be used separately +under those permissions, but the entire Program remains governed by +this License without regard to the additional permissions. + + When you convey a copy of a covered work, you may at your option +remove any additional permissions from that copy, or from any part of +it. (Additional permissions may be written to require their own +removal in certain cases when you modify the work.) You may place +additional permissions on material, added by you to a covered work, +for which you have or can give appropriate copyright permission. + + Notwithstanding any other provision of this License, for material you +add to a covered work, you may (if authorized by the copyright holders of +that material) supplement the terms of this License with terms: + + a) Disclaiming warranty or limiting liability differently from the + terms of sections 15 and 16 of this License; or + + b) Requiring preservation of specified reasonable legal notices or + author attributions in that material or in the Appropriate Legal + Notices displayed by works containing it; or + + c) Prohibiting misrepresentation of the origin of that material, or + requiring that modified versions of such material be marked in + reasonable ways as different from the original version; or + + d) Limiting the use for publicity purposes of names of licensors or + authors of the material; or + + e) Declining to grant rights under trademark law for use of some + trade names, trademarks, or service marks; or + + f) Requiring indemnification of licensors and authors of that + material by anyone who conveys the material (or modified versions of + it) with contractual assumptions of liability to the recipient, for + any liability that these contractual assumptions directly impose on + those licensors and authors. + + All other non-permissive additional terms are considered "further +restrictions" within the meaning of section 10. If the Program as you +received it, or any part of it, contains a notice stating that it is +governed by this License along with a term that is a further +restriction, you may remove that term. If a license document contains +a further restriction but permits relicensing or conveying under this +License, you may add to a covered work material governed by the terms +of that license document, provided that the further restriction does +not survive such relicensing or conveying. + + If you add terms to a covered work in accord with this section, you +must place, in the relevant source files, a statement of the +additional terms that apply to those files, or a notice indicating +where to find the applicable terms. + + Additional terms, permissive or non-permissive, may be stated in the +form of a separately written license, or stated as exceptions; +the above requirements apply either way. + + 8. Termination. + + You may not propagate or modify a covered work except as expressly +provided under this License. Any attempt otherwise to propagate or +modify it is void, and will automatically terminate your rights under +this License (including any patent licenses granted under the third +paragraph of section 11). + + However, if you cease all violation of this License, then your +license from a particular copyright holder is reinstated (a) +provisionally, unless and until the copyright holder explicitly and +finally terminates your license, and (b) permanently, if the copyright +holder fails to notify you of the violation by some reasonable means +prior to 60 days after the cessation. + + Moreover, your license from a particular copyright holder is +reinstated permanently if the copyright holder notifies you of the +violation by some reasonable means, this is the first time you have +received notice of violation of this License (for any work) from that +copyright holder, and you cure the violation prior to 30 days after +your receipt of the notice. + + Termination of your rights under this section does not terminate the +licenses of parties who have received copies or rights from you under +this License. If your rights have been terminated and not permanently +reinstated, you do not qualify to receive new licenses for the same +material under section 10. + + 9. Acceptance Not Required for Having Copies. + + You are not required to accept this License in order to receive or +run a copy of the Program. Ancillary propagation of a covered work +occurring solely as a consequence of using peer-to-peer transmission +to receive a copy likewise does not require acceptance. However, +nothing other than this License grants you permission to propagate or +modify any covered work. These actions infringe copyright if you do +not accept this License. Therefore, by modifying or propagating a +covered work, you indicate your acceptance of this License to do so. + + 10. Automatic Licensing of Downstream Recipients. + + Each time you convey a covered work, the recipient automatically +receives a license from the original licensors, to run, modify and +propagate that work, subject to this License. You are not responsible +for enforcing compliance by third parties with this License. + + An "entity transaction" is a transaction transferring control of an +organization, or substantially all assets of one, or subdividing an +organization, or merging organizations. If propagation of a covered +work results from an entity transaction, each party to that +transaction who receives a copy of the work also receives whatever +licenses to the work the party's predecessor in interest had or could +give under the previous paragraph, plus a right to possession of the +Corresponding Source of the work from the predecessor in interest, if +the predecessor has it or can get it with reasonable efforts. + + You may not impose any further restrictions on the exercise of the +rights granted or affirmed under this License. For example, you may +not impose a license fee, royalty, or other charge for exercise of +rights granted under this License, and you may not initiate litigation +(including a cross-claim or counterclaim in a lawsuit) alleging that +any patent claim is infringed by making, using, selling, offering for +sale, or importing the Program or any portion of it. + + 11. Patents. + + A "contributor" is a copyright holder who authorizes use under this +License of the Program or a work on which the Program is based. The +work thus licensed is called the contributor's "contributor version". + + A contributor's "essential patent claims" are all patent claims +owned or controlled by the contributor, whether already acquired or +hereafter acquired, that would be infringed by some manner, permitted +by this License, of making, using, or selling its contributor version, +but do not include claims that would be infringed only as a +consequence of further modification of the contributor version. For +purposes of this definition, "control" includes the right to grant +patent sublicenses in a manner consistent with the requirements of +this License. + + Each contributor grants you a non-exclusive, worldwide, royalty-free +patent license under the contributor's essential patent claims, to +make, use, sell, offer for sale, import and otherwise run, modify and +propagate the contents of its contributor version. + + In the following three paragraphs, a "patent license" is any express +agreement or commitment, however denominated, not to enforce a patent +(such as an express permission to practice a patent or covenant not to +sue for patent infringement). To "grant" such a patent license to a +party means to make such an agreement or commitment not to enforce a +patent against the party. + + If you convey a covered work, knowingly relying on a patent license, +and the Corresponding Source of the work is not available for anyone +to copy, free of charge and under the terms of this License, through a +publicly available network server or other readily accessible means, +then you must either (1) cause the Corresponding Source to be so +available, or (2) arrange to deprive yourself of the benefit of the +patent license for this particular work, or (3) arrange, in a manner +consistent with the requirements of this License, to extend the patent +license to downstream recipients. "Knowingly relying" means you have +actual knowledge that, but for the patent license, your conveying the +covered work in a country, or your recipient's use of the covered work +in a country, would infringe one or more identifiable patents in that +country that you have reason to believe are valid. + + If, pursuant to or in connection with a single transaction or +arrangement, you convey, or propagate by procuring conveyance of, a +covered work, and grant a patent license to some of the parties +receiving the covered work authorizing them to use, propagate, modify +or convey a specific copy of the covered work, then the patent license +you grant is automatically extended to all recipients of the covered +work and works based on it. + + A patent license is "discriminatory" if it does not include within +the scope of its coverage, prohibits the exercise of, or is +conditioned on the non-exercise of one or more of the rights that are +specifically granted under this License. You may not convey a covered +work if you are a party to an arrangement with a third party that is +in the business of distributing software, under which you make payment +to the third party based on the extent of your activity of conveying +the work, and under which the third party grants, to any of the +parties who would receive the covered work from you, a discriminatory +patent license (a) in connection with copies of the covered work +conveyed by you (or copies made from those copies), or (b) primarily +for and in connection with specific products or compilations that +contain the covered work, unless you entered into that arrangement, +or that patent license was granted, prior to 28 March 2007. + + Nothing in this License shall be construed as excluding or limiting +any implied license or other defenses to infringement that may +otherwise be available to you under applicable patent law. + + 12. No Surrender of Others' Freedom. + + If conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot convey a +covered work so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you may +not convey it at all. For example, if you agree to terms that obligate you +to collect a royalty for further conveying from those to whom you convey +the Program, the only way you could satisfy both those terms and this +License would be to refrain entirely from conveying the Program. + + 13. Use with the GNU Affero General Public License. + + Notwithstanding any other provision of this License, you have +permission to link or combine any covered work with a work licensed +under version 3 of the GNU Affero General Public License into a single +combined work, and to convey the resulting work. The terms of this +License will continue to apply to the part which is the covered work, +but the special requirements of the GNU Affero General Public License, +section 13, concerning interaction through a network will apply to the +combination as such. + + 14. Revised Versions of this License. + + The Free Software Foundation may publish revised and/or new versions of +the GNU General Public License from time to time. Such new versions will +be similar in spirit to the present version, but may differ in detail to +address new problems or concerns. + + Each version is given a distinguishing version number. If the +Program specifies that a certain numbered version of the GNU General +Public License "or any later version" applies to it, you have the +option of following the terms and conditions either of that numbered +version or of any later version published by the Free Software +Foundation. If the Program does not specify a version number of the +GNU General Public License, you may choose any version ever published +by the Free Software Foundation. + + If the Program specifies that a proxy can decide which future +versions of the GNU General Public License can be used, that proxy's +public statement of acceptance of a version permanently authorizes you +to choose that version for the Program. + + Later license versions may give you additional or different +permissions. However, no additional obligations are imposed on any +author or copyright holder as a result of your choosing to follow a +later version. + + 15. Disclaimer of Warranty. + + THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY +APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT +HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY +OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, +THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM +IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF +ALL NECESSARY SERVICING, REPAIR OR CORRECTION. + + 16. Limitation of Liability. + + IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS +THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY +GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE +USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF +DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD +PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), +EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF +SUCH DAMAGES. + + 17. Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + 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, either version 3 of the License, or + (at your option) any later version. + + 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 . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/README.md b/README.md new file mode 100644 index 0000000..5cf10da --- /dev/null +++ b/README.md @@ -0,0 +1,54 @@ +# nvidia-pstated + +A daemon that automatically manages the performance states of NVIDIA GPUs. + +## Installation + +### Prerequirements + +Make sure you have the proprietary NVIDIA driver and the packages providing `libnvidia-api.so.1` and `libnvidia-ml.so.1` installed. + +- ArchLinux: `nvidia-utils` +- Debian: `libnvidia-api1` or `libnvidia-tesla-api1` (depending on the GPU and driver installed) + +On Debian derivatives, you can use `apt search libnvidia-api.so.1` and `apt search libnvidia-ml.so.1` to find the package you need. + +### Installation + +Download the latest version of the executable for your OS from [workflows](https://github.com/sasha0552/nvidia-pstated/actions). + +Note that you need to be logged into GitHub to do this. Use [nightly.link](https://nightly.link/) to download artifacts without logging in. + +## Compilation + +### Prerequirements + +* CMake +* CUDA toolkit +* Wget (only on Linux) + +### Linux + +```sh +# Download NVAPI headers +./nvapi.sh + +# Configure +cmake -B build + +# Build +cmake --build build +``` + +### Windows + +```sh +# Download NVAPI headers +.\nvapi.ps1 + +# Configure +cmake -B build + +# Build +cmake --build build +``` diff --git a/nvapi.ps1 b/nvapi.ps1 new file mode 100644 index 0000000..ea5f1ec --- /dev/null +++ b/nvapi.ps1 @@ -0,0 +1,18 @@ +# Constants +$NVAPI_HEADERS = "nvapi" +$NVAPI_HEADERS_ARCHIVE = "nvapi.tar" +$NVAPI_HEADERS_URL = "https://download.nvidia.com/XFree86/nvapi-open-source-sdk/R555-OpenSource.tar" + +# Download NVAPI headers +if (-not (Test-Path $NVAPI_HEADERS_ARCHIVE)) { + Invoke-WebRequest -OutFile $NVAPI_HEADERS_ARCHIVE -Uri $NVAPI_HEADERS_URL +} + +# Extract NVAPI headers +if (-not (Test-Path $NVAPI_HEADERS)) { + # Create directory + New-Item -ItemType Directory -Path $NVAPI_HEADERS + + # Extract headers + tar --directory $NVAPI_HEADERS --extract --file $NVAPI_HEADERS_ARCHIVE --strip-components 2 +} diff --git a/nvapi.sh b/nvapi.sh new file mode 100755 index 0000000..3af86d2 --- /dev/null +++ b/nvapi.sh @@ -0,0 +1,21 @@ +#!/bin/sh +set -e + +# Constants +readonly NVAPI_HEADERS="nvapi" +readonly NVAPI_HEADERS_ARCHIVE="nvapi.tar" +readonly NVAPI_HEADERS_URL="https://download.nvidia.com/XFree86/nvapi-open-source-sdk/R555-OpenSource.tar" + +# Download NVAPI headers +if [ ! -f "$NVAPI_HEADERS_ARCHIVE" ]; then + wget --output-document "$NVAPI_HEADERS_ARCHIVE" "$NVAPI_HEADERS_URL" +fi + +# Extract NVAPI headers +if [ ! -d "$NVAPI_HEADERS" ]; then + # Create directory + mkdir "$NVAPI_HEADERS" + + # Extract headers + tar --directory "$NVAPI_HEADERS" --extract --file "$NVAPI_HEADERS_ARCHIVE" --strip-components 2 +fi diff --git a/src/main.c b/src/main.c new file mode 100644 index 0000000..9a9132c --- /dev/null +++ b/src/main.c @@ -0,0 +1,188 @@ +#include +#include +#include +#include +#include +#include + +#ifdef _WIN32 + #include +#elif __linux__ + #include +#endif + +#include "nvapi.h" +#include "utils.h" + +/***** ***** ***** ***** ***** VARIABLES ***** ***** ***** ***** *****/ + +// Flags to check initialization status of NVML and NVAPI libraries +static bool nvapiInitialized = false; +static bool nvmlInitialized = false; + +// Arrays to store device handles for all GPUs +static NvPhysicalGpuHandle nvapiDevices[NVAPI_MAX_PHYSICAL_GPUS]; +static nvmlDevice_t nvmlDevices[NVAPI_MAX_PHYSICAL_GPUS]; + +// Variable to store the number of GPU devices +static unsigned int deviceCount; + +// Variable to store GPU utilization information +static nvmlUtilization_t utilization; + +// Variable to store GPU states +static gpuState gpuStates[NVAPI_MAX_PHYSICAL_GPUS] = { 0 }; + +/***** ***** ***** ***** ***** FUNCTIONS ***** ***** ***** ***** *****/ + +static bool enter_pstate(unsigned int i, unsigned int pstateId) { + // Get the current state of the GPU + gpuState * state = &gpuStates[i]; + + // Set the GPU to the desired performance state + NVAPI_CALL(NvAPI_GPU_SetForcePstate(nvapiDevices[i], pstateId, 2), failure); + + // Reset the iteration counter + state->iterations = 0; + + // Update the GPU state with the new performance state + state->pstateId = pstateId; + + // Print the current GPU state + printf("GPU %d entered performance state %d\n", i, state->pstateId); + + // Return true to indicate success + return true; + + failure: + // Return false to indicate failure + return false; +} + +int main() { + /***** NVAPI INIT *****/ + { + // Initialize NVAPI library + NVAPI_CALL(NvAPI_Initialize(), cleanup); + + // Mark NVAPI as initialized + nvapiInitialized = true; + } + + /***** NVML INIT *****/ + { + // Initialize NVML library + NVML_CALL(nvmlInit(), cleanup); + + // Mark NVML as initialized + nvmlInitialized = true; + } + + /***** NVAPI HANDLES *****/ + { + // Get NVAPI device handles for all GPUs + NVAPI_CALL(NvAPI_EnumPhysicalGPUs(nvapiDevices, &deviceCount), cleanup); + } + + /***** NVML HANDLES *****/ + { + // Get NVML device handles for all GPUs + for (unsigned int i = 0; i < deviceCount; i++) { + NVML_CALL(nvmlDeviceGetHandleByIndex(i, &nvmlDevices[i]), cleanup); + } + } + + /***** INIT *****/ + { + // Print the number of GPUs being managed + printf("Managing %d GPUs...\n", deviceCount); + + // Iterate through each GPU + for (unsigned int i = 0; i < deviceCount; i++) { + // Switch to low performance state + if (!enter_pstate(i, PERFORMANCE_STATE_LOW)) { + goto cleanup; + } + } + } + + /***** MAIN LOOP *****/ + { + // Infinite loop to continuously monitor GPU utilization + while (true) { + // Loop through all devices to get their utilization rates + for (unsigned int i = 0; i < deviceCount; i++) { + // Get the current state of the GPU + gpuState * state = &gpuStates[i]; + + // Retrieve the current utilization rates of the GPU + NVML_CALL(nvmlDeviceGetUtilizationRates(nvmlDevices[i], &utilization), cleanup); + + // Check if the GPU utilization is not zero + if (utilization.gpu != 0) { + // If the GPU is not already in high performance state + if (state->pstateId != PERFORMANCE_STATE_HIGH) { + // Switch to high performance state + if (!enter_pstate(i, PERFORMANCE_STATE_HIGH)) { + goto cleanup; + } + } else { + // Reset the iteration counter + state->iterations = 0; + } + } else { + // If the GPU is not already in low performance state + if (state->pstateId != PERFORMANCE_STATE_LOW) { + // If the number of iterations exceeds the threshold + if (state->iterations > ITERATIONS_BEFORE_SWITCH) { + // Switch to low performance state + if (!enter_pstate(i, PERFORMANCE_STATE_LOW)) { + goto cleanup; + } + } + + // Increment the iteration counter + state->iterations++; + } + } + } + + // Sleep for a defined interval before the next check + #ifdef _WIN32 + Sleep(SLEEP_INTERVAL); + #elif __linux__ + usleep(SLEEP_INTERVAL * 1000); + #endif + } + } + + cleanup: + /***** NVAPI DEINIT *****/ + { + // Unload NVAPI library if it was initialized + if (nvapiInitialized) { + // Set NVAPI initialization flag to false + nvapiInitialized = false; + + // Unload NVAPI library + NVAPI_CALL(NvAPI_Unload(), cleanup); + } + } + + /***** NVML DEINIT *****/ + { + // Shutdown NVML library if it was initialized + if (nvmlInitialized) { + // Set NVML initialization flag to false + nvmlInitialized = false; + + // Shutdown NVML library + NVML_CALL(nvmlShutdown(), cleanup); + } + } + + /***** RETURN *****/ + { + return 0; + } +} diff --git a/src/nvapi.c b/src/nvapi.c new file mode 100644 index 0000000..ede95ab --- /dev/null +++ b/src/nvapi.c @@ -0,0 +1,158 @@ +#include +#include +#include + +#ifdef _WIN32 + #include +#elif __linux__ + #include +#endif + +#include "nvapi.h" + +/***** ***** ***** ***** ***** TYPES ***** ***** ***** ***** *****/ + +typedef void * (*nvapi_QueryInterface_t)(int); + +typedef NvAPI_Status (*NvAPI_EnumPhysicalGPUs_t)(NvPhysicalGpuHandle[NVAPI_MAX_PHYSICAL_GPUS], NvU32 *); +typedef NvAPI_Status (*NvAPI_GPU_SetForcePstate_t)(NvPhysicalGpuHandle, NvU32, NvU32); +typedef NvAPI_Status (*NvAPI_GetErrorMessage_t)(NvAPI_Status, NvAPI_ShortString); +typedef NvAPI_Status (*NvAPI_Initialize_t)(); +typedef NvAPI_Status (*NvAPI_Unload_t)(); + +/***** ***** ***** ***** ***** VARIABLES ***** ***** ***** ***** *****/ + +static void * lib; + +static NvAPI_EnumPhysicalGPUs_t _NvAPI_EnumPhysicalGPUs; +static NvAPI_GPU_SetForcePstate_t _NvAPI_GPU_SetForcePstate; +static NvAPI_GetErrorMessage_t _NvAPI_GetErrorMessage; +static NvAPI_Initialize_t _NvAPI_Initialize; +static NvAPI_Unload_t _NvAPI_Unload; + +/***** ***** ***** ***** ***** MACROS ***** ***** ***** ***** *****/ + +#define NVAPI_POINTER(pointer) do { \ + if (pointer == NULL) { \ + return NVAPI_API_NOT_INITIALIZED; \ + } \ +} while(0) + +/***** ***** ***** ***** ***** IMPLEMENTATION ***** ***** ***** ***** *****/ + +NvAPI_Status NvAPI_EnumPhysicalGPUs(NvPhysicalGpuHandle nvGPUHandle[NVAPI_MAX_PHYSICAL_GPUS], NvU32 *pGpuCount) { + // Ensure the function pointer is valid + NVAPI_POINTER(_NvAPI_EnumPhysicalGPUs); + + // Invoke the function using the provided parameters + return _NvAPI_EnumPhysicalGPUs(nvGPUHandle, pGpuCount); +} + +NvAPI_Status NvAPI_GPU_SetForcePstate(NvPhysicalGpuHandle hPhysicalGpu, NvU32 pstateId, NvU32 fallbackState) { + // Ensure the function pointer is valid + NVAPI_POINTER(_NvAPI_GPU_SetForcePstate); + + // Invoke the function using the provided parameters + return _NvAPI_GPU_SetForcePstate(hPhysicalGpu, pstateId, fallbackState); +} + +NvAPI_Status NvAPI_GetErrorMessage(NvAPI_Status nr, NvAPI_ShortString szDesc) { + // Ensure the function pointer is valid + NVAPI_POINTER(_NvAPI_GetErrorMessage); + + // Invoke the function using the provided parameters + return _NvAPI_GetErrorMessage(nr, szDesc); +} + +NvAPI_Status NvAPI_Initialize() { + // Check the platform and load the appropriate NvAPI library + #ifdef _WIN32 + if (!lib) { + lib = LoadLibrary("nvapi64.dll"); + } + + if (!lib) { + lib = LoadLibrary("nvapi.dll"); + } + #elif __linux__ + if (!lib) { + lib = dlopen("libnvidia-api.so.1", RTLD_LAZY); + } + + if (!lib) { + lib = dlopen("libnvidia-api.so", RTLD_LAZY); + } + #endif + + // If the library handle is still not initialized, loading the library failed + if (!lib) { + // Print an error message indicating failure to load the NvAPI library + fprintf(stderr, "Unable to load NvAPI library\n"); + + // Return an error status indicating that the library was not found + return NVAPI_LIBRARY_NOT_FOUND; + } + + // Declare a function pointer for nvapi_QueryInterface + nvapi_QueryInterface_t nvapi_QueryInterface; + + // Get the address of the nvapi_QueryInterface function from the loaded library + #ifdef _WIN32 + nvapi_QueryInterface = (nvapi_QueryInterface_t) GetProcAddress((HMODULE) lib, "nvapi_QueryInterface"); + #elif __linux__ + nvapi_QueryInterface = (nvapi_QueryInterface_t) dlsym(lib, "nvapi_QueryInterface"); + #endif + + // If the function pointer is still null, gathering the address failed + if (!nvapi_QueryInterface) { + // Print an error message indicating failure to gather the function address + fprintf(stderr, "Unable to retrieve nvapi_QueryInterface function\n"); + + // Return an error status indicating that the library was not found + return NVAPI_LIBRARY_NOT_FOUND; + } + + // Retrieve the addresses of specific NvAPI functions using nvapi_QueryInterface + _NvAPI_EnumPhysicalGPUs = (NvAPI_EnumPhysicalGPUs_t) nvapi_QueryInterface(0xe5ac921f); + _NvAPI_GPU_SetForcePstate = (NvAPI_GPU_SetForcePstate_t) nvapi_QueryInterface(0x025bfb10); + _NvAPI_GetErrorMessage = (NvAPI_GetErrorMessage_t) nvapi_QueryInterface(0x6c2d048c); + _NvAPI_Initialize = (NvAPI_Initialize_t) nvapi_QueryInterface(0x0150e828); + _NvAPI_Unload = (NvAPI_Unload_t) nvapi_QueryInterface(0xd22bdd7e); + + // Ensure the function pointer is valid + NVAPI_POINTER(_NvAPI_Initialize); + + // Invoke the function using the provided parameters + return _NvAPI_Initialize(); +} + +NvAPI_Status NvAPI_Unload() { + // Ensure the function pointer is valid + NVAPI_POINTER(_NvAPI_Unload); + + // Invoke the function using the provided parameters + NvAPI_Status ret = _NvAPI_Unload(); + + // If the function call was successful, proceed with cleanup + if (ret == NVAPI_OK) { + // If the library handle is initialized + if (lib) { + // Nullify all the function pointers to prevent further use + _NvAPI_EnumPhysicalGPUs = NULL; + _NvAPI_GPU_SetForcePstate = NULL; + _NvAPI_GetErrorMessage = NULL; + _NvAPI_Initialize = NULL; + _NvAPI_Unload = NULL; + + // Free the loaded library based on the platform + #ifdef _WIN32 + FreeLibrary((HMODULE) lib); + #elif __linux__ + dlclose(lib); + #endif + } + } + + // Return the status of the function call + return ret; +} diff --git a/src/nvapi.h b/src/nvapi.h new file mode 100644 index 0000000..f2666b9 --- /dev/null +++ b/src/nvapi.h @@ -0,0 +1,3 @@ +#include + +NvAPI_Status NvAPI_GPU_SetForcePstate(NvPhysicalGpuHandle hPhysicalGpu, NvU32 pstateId, NvU32 fallbackState); diff --git a/src/utils.h b/src/utils.h new file mode 100644 index 0000000..86e7a0a --- /dev/null +++ b/src/utils.h @@ -0,0 +1,67 @@ +#include +#include + +/***** ***** ***** ***** ***** CONSTANTS ***** ***** ***** ***** *****/ + +// High performance state for the GPU +#define PERFORMANCE_STATE_HIGH 16 + +// Low performance state for the GPU +#define PERFORMANCE_STATE_LOW 8 + +// Number of iterations to wait before switching states +#define ITERATIONS_BEFORE_SWITCH 30 + +// Sleep interval (in milliseconds) between utilization checks +#define SLEEP_INTERVAL 100 + +/***** ***** ***** ***** ***** MACROS ***** ***** ***** ***** *****/ + +// Macro to simplify NVAPI function calls and handle errors +#define NVAPI_CALL(call, label) do { \ + /* Evaluate the NVAPI function call and store the result */ \ + NvAPI_Status result = (call); \ + \ + /* Check if the result indicates an error */ \ + if (result != NVAPI_OK) { \ + /* Prepare a buffer to hold the error message */ \ + NvAPI_ShortString error; \ + \ + /* Retrieve the error message associated with the result code */ \ + if (NvAPI_GetErrorMessage(result, error) != NVAPI_OK) { \ + strcpy(error, ""); \ + } \ + \ + /* Print the error message to standard error */ \ + fprintf(stderr, "%s: %s\n", #call, error); \ + \ + /* Jump to the specified label */ \ + goto label; \ + } \ +} while(0) + +// Macro to simplify NVML function calls and handle errors +#define NVML_CALL(call, label) do { \ + /* Evaluate the NVML function call and store the result */ \ + nvmlReturn_t result = (call); \ + \ + /* Check if the result indicates an error */ \ + if (result != NVML_SUCCESS) { \ + /* Print the error message to standard error */ \ + fprintf(stderr, "%s: %s\n", #call, nvmlErrorString(result)); \ + \ + /* Jump to the specified label */ \ + goto label; \ + } \ +} while(0) + +/***** ***** ***** ***** ***** STRUCTURES ***** ***** ***** ***** *****/ + +// Structure to hold the state of each GPU +typedef struct { + // Counter for iterations when in a specific state + unsigned int iterations; + + // Current performance state of the GPU + unsigned int pstateId; +} gpuState;