515.43.04

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---
name: Bug report
about: Create a report to help us improve
title: ''
labels: ''
assignees: ''
---
**NVIDIA Driver Version**
Please write the version of the NVIDIA driver you are using.
**GPU**
Please write the particular model of NVIDIA GPU you are using.
**Describe the bug**
Please write a clear and concise description of what the bug is.
**To Reproduce**
Please write the steps to reproduce the behavior.
**Expected behavior**
Please write a clear and concise description of what you expected to happen.
**Please reproduce the problem, run nvidia-bug-report.sh, and attach the resulting nvidia-bug-report.log.gz.**

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*.o
*.o_binary
*.o.cmd
*.o.d
_out/

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# Contributor Covenant Code of Conduct
## Our Pledge
We as members, contributors, and leaders pledge to make participation in our
community a harassment-free experience for everyone, regardless of age, body
size, visible or invisible disability, ethnicity, sex characteristics, gender
identity and expression, level of experience, education, socio-economic status,
nationality, personal appearance, race, caste, color, religion, or sexual
identity and orientation.
We pledge to act and interact in ways that contribute to an open, welcoming,
diverse, inclusive, and healthy community.
## Our Standards
Examples of behavior that contribute to a positive environment for our
community include:
* Using welcoming and inclusive language
* Demonstrating empathy and kindness toward other people
* Being respectful of differing opinions, viewpoints, and experiences
* Giving and gracefully accepting constructive feedback
* Accepting responsibility and apologizing to those affected by our mistakes,
and learning from the experience
* Focusing on what is best not just for us as individuals, but for the overall
community
Examples of unacceptable behavior include:
* The use of sexualized language or imagery and unwelcome sexual attention or advances of
any kind
* Trolling, insulting or derogatory comments, and personal or political attacks
* Public or private harassment
* Publishing others' private information, such as a physical or electronic address,
without their explicit permission
* Other conduct which could reasonably be considered inappropriate in a
professional setting
## Enforcement Responsibilities
Community leaders are responsible for clarifying and enforcing our standards of
acceptable behavior and will take appropriate and fair corrective action in
response to any behavior that they deem inappropriate, threatening, offensive,
or harmful.
Community leaders have the right and responsibility to remove, edit, or reject
comments, commits, code, wiki edits, issues, and other contributions that are
not aligned to this Code of Conduct, or to ban temporarily or permanently any
contributor for other behaviors that they deem inappropriate, threatening,
offensive, or harmful.
## Scope
This Code of Conduct applies both within project spaces and in public spaces when
an individual is representing the project or its community. Examples of representing
our community include using an official e-mail address, posting via an official
social media account, or acting as an appointed representative at an online or
offline event. Representation of a project may be further defined and clarified
by project maintainers.
## Enforcement
Instances of abusive, harassing, or otherwise unacceptable behavior may be
reported to the community leaders and moderators responsible for enforcement at
GitHub_Conduct@nvidia.com.
All complaints will be reviewed and investigated and will result in a response
that is deemed necessary and appropriate to the circumstances. Leaders and moderators
are obligated to maintain confidentiality with regard to the reporter of an incident.
Further details of specific enforcement policies may be posted separately.
Moderators who do not follow or enforce the Code of Conduct in good faith
may face temporary or permanent repercussions as determined by other members of the
communitys leadership.
## Enforcement Guidelines
Community leaders and moderators will follow these Community Impact Guidelines
in determining the consequences for any action they deem in violation of this
Code of Conduct:
### 1. Correction
**Community Impact**: Use of inappropriate language or other behavior deemed
unprofessional or unwelcome in the community.
**Consequence**: A private, written warning from community moderators, providing
clarity around the nature of the violation and an explanation of why the
behavior was inappropriate. A public apology may be requested.
### 2. Warning
**Community Impact**: A violation through a single incident or series of
actions.
**Consequence**: A warning with consequences for continued behavior. No
interaction with the people involved, including unsolicited interaction with
those enforcing the Code of Conduct, for a specified period of time. This
includes avoiding interactions in community spaces as well as external channels
like social media. Violating these terms may lead to a temporary or permanent
ban.
### 3. Temporary Ban
**Community Impact**: A serious violation of community standards, including
sustained inappropriate behavior.
**Consequence**: A temporary ban from any sort of interaction or public
communication with the community for a specified period of time. No public or
private interaction with the people involved, including unsolicited interaction
with those enforcing the Code of Conduct, is allowed during this period.
Violating these terms may lead to a permanent ban.
### 4. Permanent Ban
**Community Impact**: Demonstrating an egregious single violation, or a pattern of
violation of community standards, including sustained inappropriate behavior,
harassment of an individual, or aggression toward or disparagement of classes of
individuals.
**Consequence**: A permanent ban from any sort of public interaction within the
community.
## Attribution
This Code of Conduct is adapted from the [Contributor Covenant][homepage],
version 2.1, available at
[https://www.contributor-covenant.org/version/2/1/code_of_conduct.html][v2.1].
Community Impact Guidelines were inspired by
[Mozilla's code of conduct enforcement ladder][Mozilla CoC].
For answers to common questions about this code of conduct, see the FAQ at
[https://www.contributor-covenant.org/faq][FAQ]. Translations are available at
[https://www.contributor-covenant.org/translations][translations].
[homepage]: https://www.contributor-covenant.org
[v2.1]: https://www.contributor-covenant.org/version/2/1/code_of_conduct.html
[Mozilla CoC]: https://github.com/mozilla/diversity
[FAQ]: https://www.contributor-covenant.org/faq
[translations]: https://www.contributor-covenant.org/translations

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Except where noted otherwise, the individual files within this package are
licensed as MIT:
Copyright (c) 2021 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
However, when linked together to form a Linux kernel module, the resulting Linux
kernel module is dual licensed as MIT/GPLv2.
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
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If you develop a new program, and you want it to be of the greatest
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The hypothetical commands `show w' and `show c' should show the appropriate
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You should also get your employer (if you work as a programmer) or your
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Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This 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 Library General
Public License instead of this License.

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###########################################################################
# This is the top level makefile for the NVIDIA Linux kernel module source
# package.
#
# To build: run `make modules`
# To install the build kernel modules: run (as root) `make modules_install`
###########################################################################
include utils.mk
all: modules
nv_kernel_o = src/nvidia/$(OUTPUTDIR)/nv-kernel.o
nv_kernel_o_binary = kernel-open/nvidia/nv-kernel.o_binary
nv_modeset_kernel_o = src/nvidia-modeset/$(OUTPUTDIR)/nv-modeset-kernel.o
nv_modeset_kernel_o_binary = kernel-open/nvidia-modeset/nv-modeset-kernel.o_binary
.PHONY: $(nv_kernel_o) $(nv_modeset_kernel_o) modules modules_install
###########################################################################
# nv-kernel.o is the OS agnostic portion of nvidia.ko
###########################################################################
$(nv_kernel_o):
$(MAKE) -C src/nvidia
$(nv_kernel_o_binary): $(nv_kernel_o)
cd $(dir $@) && ln -sf ../../$^ $(notdir $@)
###########################################################################
# nv-modeset-kernel.o is the OS agnostic portion of nvidia-modeset.ko
###########################################################################
$(nv_modeset_kernel_o):
$(MAKE) -C src/nvidia-modeset
$(nv_modeset_kernel_o_binary): $(nv_modeset_kernel_o)
cd $(dir $@) && ln -sf ../../$^ $(notdir $@)
###########################################################################
# After the OS agnostic portions are built, descend into kernel-open/ and build
# the kernel modules with kbuild.
###########################################################################
modules: $(nv_kernel_o_binary) $(nv_modeset_kernel_o_binary)
$(MAKE) -C kernel-open modules
###########################################################################
# Install the built kernel modules using kbuild.
###########################################################################
modules_install:
$(MAKE) -C kernel-open modules_install
###########################################################################
# clean
###########################################################################
.PHONY: clean nvidia.clean nvidia-modeset.clean kernel-open.clean
clean: nvidia.clean nvidia-modeset.clean kernel-open.clean
nvidia.clean:
$(MAKE) -C src/nvidia clean
nvidia-modeset.clean:
$(MAKE) -C src/nvidia-modeset clean
kernel-open.clean:
$(MAKE) -C kernel-open clean

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# NVIDIA Linux Open GPU Kernel Module Source
This is the source release of the NVIDIA Linux open GPU kernel modules,
version 515.43.04.
## How to Build
To build:
make modules -j`nproc`
To install, first uninstall any existing NVIDIA kernel modules. Then,
as root:
make modules_install -j`nproc`
Note that the kernel modules built here must be used with gsp.bin
firmware and user-space NVIDIA GPU driver components from a corresponding
515.43.04 driver release. This can be achieved by installing
the NVIDIA GPU driver from the .run file using the `--no-kernel-modules`
option. E.g.,
sh ./NVIDIA-Linux-[...].run --no-kernel-modules
## Supported Target CPU Architectures
Currently, the kernel modules can be built for x86_64 or aarch64.
If cross-compiling, set these variables on the make command line:
TARGET_ARCH=aarch64|x86_64
CC
LD
AR
CXX
OBJCOPY
E.g.,
# compile on x86_64 for aarch64
make modules -j`nproc` \
TARGET_ARCH=aarch64 \
CC=aarch64-linux-gnu-gcc \
LD=aarch64-linux-gnu-ld \
AR=aarch64-linux-gnu-ar \
CXX=aarch64-linux-gnu-g++ \
OBJCOPY=aarch64-linux-gnu-objcopy
## Other Build Knobs
NV_VERBOSE - Set this to "1" to print each complete command executed;
otherwise, a succinct "CC" line is printed.
DEBUG - Set this to "1" to build the kernel modules as debug. By default, the
build compiles without debugging information. This also enables
various debug log messages in the kernel modules.
These variables can be set on the make command line. E.g.,
make modules -j`nproc` NV_VERBOSE=1
## Supported Toolchains
Any reasonably modern version of gcc or clang can be used to build the
kernel modules. Note that the kernel interface layers of the kernel
modules must be built with the toolchain that was used to build the
kernel.
## Supported Linux Kernel Versions
The NVIDIA open kernel modules support the same range of Linux kernel
versions that are supported with the proprietary NVIDIA kernel modules.
This is currently Linux kernel 3.10 or newer.
## How to Contribute
Contributions can be made by creating a pull request on
https://github.com/NVIDIA/open-gpu-kernel-modules
We'll respond via github.
Note that when submitting a pull request, you will be prompted to accept
a Contributor License Agreement.
This code base is shared with NVIDIA's proprietary drivers, and various
processing is performed on the shared code to produce the source code that is
published here. This has several implications for the foreseeable future:
* The github repository will function mostly as a snapshot of each driver
release.
* We do not expect to be able to provide revision history for individual
changes that were made to NVIDIA's shared code base. There will likely
only be one git commit per driver release.
* We may not be able to reflect individual contributions as separate
git commits in the github repository.
* Because the code undergoes various processing prior to publishing here,
contributions made here require manual merging to be applied to the shared
code base. Therefore, large refactoring changes made here may be difficult to
merge and accept back into the shared code base. If you have large
refactoring to suggest, please contact us in advance, so we can coordinate.
## How to Report Issues
Problems specific to the Open GPU Kernel Modules can be reported in the
Issues section of the https://github.com/NVIDIA/open-gpu-kernel-modules
repository.
Further, any of the existing bug reporting venues can be used to communicate
problems to NVIDIA, such as our forum:
https://forums.developer.nvidia.com/c/gpu-graphics/linux/148
or linux-bugs@nvidia.com.
Please see the 'NVIDIA Contact Info and Additional Resources' section
of the NVIDIA GPU Driver README for details.
Please see the separate [SECURITY.md](SECURITY.md) document if you
believe you have discovered a security vulnerability in this software.
## Kernel Interface and OS-Agnostic Components of Kernel Modules
Most of NVIDIA's kernel modules are split into two components:
* An "OS-agnostic" component: this is the component of each kernel module
that is independent of operating system.
* A "kernel interface layer": this is the component of each kernel module
that is specific to the Linux kernel version and configuration.
When packaged in the NVIDIA .run installation package, the OS-agnostic
component is provided as a binary: it is large and time-consuming to
compile, so pre-built versions are provided so that the user does
not have to compile it during every driver installation. For the
nvidia.ko kernel module, this component is named "nv-kernel.o_binary".
For the nvidia-modeset.ko kernel module, this component is named
"nv-modeset-kernel.o_binary". Neither nvidia-drm.ko nor nvidia-uvm.ko
have OS-agnostic components.
The kernel interface layer component for each kernel module must be built
for the target kernel.
## Directory Structure Layout
- `kernel-open/` The kernel interface layer
- `kernel-open/nvidia/` The kernel interface layer for nvidia.ko
- `kernel-open/nvidia-drm/` The kernel interface layer for nvidia-drm.ko
- `kernel-open/nvidia-modeset/` The kernel interface layer for nvidia-modeset.ko
- `kernel-open/nvidia-uvm/` The kernel interface layer for nvidia-uvm.ko
- `src/` The OS-agnostic code
- `src/nvidia/` The OS-agnostic code for nvidia.ko
- `src/nvidia-modeset/` The OS-agnostic code for nvidia-modeset.ko
- `src/common/` Utility code used by one or more of nvidia.ko and nvidia-modeset.ko

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# Report a Security Vulnerability
To report a potential security vulnerability in any NVIDIA product, please use either:
* this web form: [Security Vulnerability Submission Form](https://www.nvidia.com/object/submit-security-vulnerability.html), or
* send email to: [NVIDIA PSIRT](mailto:psirt@nvidia.com)
**OEM Partners should contact their NVIDIA Customer Program Manager**
If reporting a potential vulnerability via email, please encrypt it using NVIDIAs public PGP key ([see PGP Key page](https://www.nvidia.com/en-us/security/pgp-key/)) and include the following information:
* Product/Driver name and version/branch that contains the vulnerability
* Type of vulnerability (code execution, denial of service, buffer overflow, etc.)
* Instructions to reproduce the vulnerability
* Proof-of-concept or exploit code
* Potential impact of the vulnerability, including how an attacker could exploit the vulnerability
See https://www.nvidia.com/en-us/security/ for past NVIDIA Security Bulletins and Notices.

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.*.cmd
*.ko
*.mod
*.mod.c
conftest/
conftest[0-9]*.c
modules.order
Module.symvers
nv_compiler.h

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###########################################################################
# Kbuild file for NVIDIA Linux GPU driver kernel modules
###########################################################################
#
# The parent makefile is expected to define:
#
# NV_KERNEL_SOURCES : The root of the kernel source tree.
# NV_KERNEL_OUTPUT : The kernel's output tree.
# NV_KERNEL_MODULES : A whitespace-separated list of modules to build.
# ARCH : The target CPU architecture: x86_64|arm64|powerpc
#
# Kbuild provides the variables:
#
# $(src) : The directory containing this Kbuild file.
# $(obj) : The directory where the output from this build is written.
#
NV_BUILD_TYPE ?= release
#
# Utility macro ASSIGN_PER_OBJ_CFLAGS: to control CFLAGS on a
# per-object basis, Kbuild honors the 'CFLAGS_$(object)' variable.
# E.g., "CFLAGS_nv.o" for CFLAGS that are specific to nv.o. Use this
# macro to assign 'CFLAGS_$(object)' variables for multiple object
# files.
#
# $(1): The object files.
# $(2): The CFLAGS to add for those object files.
#
# With kernel git commit 54b8ae66ae1a3454a7645d159a482c31cd89ab33, the
# handling of object-specific CFLAGs, CFLAGS_$(object) has changed. Prior to
# this commit, the CFLAGS_$(object) variable was required to be defined with
# only the the object name (<CFLAGS_somefile.o>). With the aforementioned git
# commit, it is now required to give Kbuild relative paths along-with the
# object name (CFLAGS_<somepath>/somefile.o>). As a result, CFLAGS_$(object)
# is set twice, once with a relative path to the object files and once with
# just the object files.
#
ASSIGN_PER_OBJ_CFLAGS = \
$(foreach _cflags_variable, \
$(notdir $(1)) $(1), \
$(eval $(addprefix CFLAGS_,$(_cflags_variable)) += $(2)))
#
# Include the specifics of the individual NVIDIA kernel modules.
#
# Each of these should:
# - Append to 'obj-m', to indicate the kernel module that should be built.
# - Define the object files that should get built to produce the kernel module.
# - Tie into conftest (see the description below).
#
NV_UNDEF_BEHAVIOR_SANITIZER ?=
ifeq ($(NV_UNDEF_BEHAVIOR_SANITIZER),1)
UBSAN_SANITIZE := y
endif
$(foreach _module, $(NV_KERNEL_MODULES), \
$(eval include $(src)/$(_module)/$(_module).Kbuild))
#
# Define CFLAGS that apply to all the NVIDIA kernel modules. EXTRA_CFLAGS
# is deprecated since 2.6.24 in favor of ccflags-y, but we need to support
# older kernels which do not have ccflags-y. Newer kernels append
# $(EXTRA_CFLAGS) to ccflags-y for compatibility.
#
EXTRA_CFLAGS += -I$(src)/common/inc
EXTRA_CFLAGS += -I$(src)
EXTRA_CFLAGS += -Wall -MD $(DEFINES) $(INCLUDES) -Wno-cast-qual -Wno-error -Wno-format-extra-args
EXTRA_CFLAGS += -D__KERNEL__ -DMODULE -DNVRM
EXTRA_CFLAGS += -DNV_VERSION_STRING=\"515.43.04\"
EXTRA_CFLAGS += -Wno-unused-function
ifneq ($(NV_BUILD_TYPE),debug)
EXTRA_CFLAGS += -Wuninitialized
endif
EXTRA_CFLAGS += -fno-strict-aliasing
ifeq ($(ARCH),arm64)
EXTRA_CFLAGS += -mstrict-align
endif
ifeq ($(NV_BUILD_TYPE),debug)
EXTRA_CFLAGS += -g -gsplit-dwarf
endif
EXTRA_CFLAGS += -ffreestanding
ifeq ($(ARCH),arm64)
EXTRA_CFLAGS += -mgeneral-regs-only -march=armv8-a
endif
ifeq ($(ARCH),x86_64)
EXTRA_CFLAGS += -mno-red-zone -mcmodel=kernel
endif
ifeq ($(ARCH),powerpc)
EXTRA_CFLAGS += -mlittle-endian -mno-strict-align -mno-altivec
endif
EXTRA_CFLAGS += -DNV_UVM_ENABLE
EXTRA_CFLAGS += $(call cc-option,-Werror=undef,)
EXTRA_CFLAGS += -DNV_SPECTRE_V2=$(NV_SPECTRE_V2)
EXTRA_CFLAGS += -DNV_KERNEL_INTERFACE_LAYER
#
# Detect SGI UV systems and apply system-specific optimizations.
#
ifneq ($(wildcard /proc/sgi_uv),)
EXTRA_CFLAGS += -DNV_CONFIG_X86_UV
endif
#
# The conftest.sh script tests various aspects of the target kernel.
# The per-module Kbuild files included above should:
#
# - Append to the NV_CONFTEST_*_COMPILE_TESTS variables to indicate
# which conftests they require.
# - Append to the NV_OBJECTS_DEPEND_ON_CONFTEST variable any object files
# that depend on conftest.
#
# The conftest machinery below will run the requested tests and
# generate the appropriate header files.
#
CC ?= cc
LD ?= ld
NV_CONFTEST_SCRIPT := $(src)/conftest.sh
NV_CONFTEST_HEADER := $(obj)/conftest/headers.h
NV_CONFTEST_CMD := /bin/sh $(NV_CONFTEST_SCRIPT) \
"$(CC)" $(ARCH) $(NV_KERNEL_SOURCES) $(NV_KERNEL_OUTPUT)
NV_CFLAGS_FROM_CONFTEST := $(shell $(NV_CONFTEST_CMD) build_cflags)
NV_CONFTEST_CFLAGS = $(NV_CFLAGS_FROM_CONFTEST) $(EXTRA_CFLAGS) -fno-pie
NV_CONFTEST_COMPILE_TEST_HEADERS := $(obj)/conftest/macros.h
NV_CONFTEST_COMPILE_TEST_HEADERS += $(obj)/conftest/functions.h
NV_CONFTEST_COMPILE_TEST_HEADERS += $(obj)/conftest/symbols.h
NV_CONFTEST_COMPILE_TEST_HEADERS += $(obj)/conftest/types.h
NV_CONFTEST_COMPILE_TEST_HEADERS += $(obj)/conftest/generic.h
NV_CONFTEST_HEADERS := $(obj)/conftest/patches.h
NV_CONFTEST_HEADERS += $(obj)/conftest/headers.h
NV_CONFTEST_HEADERS += $(NV_CONFTEST_COMPILE_TEST_HEADERS)
#
# Generate a header file for a single conftest compile test. Each compile test
# header depends on conftest.sh, as well as the generated conftest/headers.h
# file, which is included in the compile test preamble.
#
$(obj)/conftest/compile-tests/%.h: $(NV_CONFTEST_SCRIPT) $(NV_CONFTEST_HEADER)
@mkdir -p $(obj)/conftest/compile-tests
@echo " CONFTEST: $(notdir $*)"
@$(NV_CONFTEST_CMD) compile_tests '$(NV_CONFTEST_CFLAGS)' \
$(notdir $*) > $@
#
# Concatenate a conftest/*.h header from its constituent compile test headers
#
# $(1): The name of the concatenated header
# $(2): The list of compile tests that make up the header
#
define NV_GENERATE_COMPILE_TEST_HEADER
$(obj)/conftest/$(1).h: $(addprefix $(obj)/conftest/compile-tests/,$(addsuffix .h,$(2)))
@mkdir -p $(obj)/conftest
@# concatenate /dev/null to prevent cat from hanging when $$^ is empty
@cat $$^ /dev/null > $$@
endef
#
# Generate the conftest compile test headers from the lists of compile tests
# provided by the module-specific Kbuild files.
#
NV_CONFTEST_FUNCTION_COMPILE_TESTS ?=
NV_CONFTEST_GENERIC_COMPILE_TESTS ?=
NV_CONFTEST_MACRO_COMPILE_TESTS ?=
NV_CONFTEST_SYMBOL_COMPILE_TESTS ?=
NV_CONFTEST_TYPE_COMPILE_TESTS ?=
$(eval $(call NV_GENERATE_COMPILE_TEST_HEADER,functions,$(NV_CONFTEST_FUNCTION_COMPILE_TESTS)))
$(eval $(call NV_GENERATE_COMPILE_TEST_HEADER,generic,$(NV_CONFTEST_GENERIC_COMPILE_TESTS)))
$(eval $(call NV_GENERATE_COMPILE_TEST_HEADER,macros,$(NV_CONFTEST_MACRO_COMPILE_TESTS)))
$(eval $(call NV_GENERATE_COMPILE_TEST_HEADER,symbols,$(NV_CONFTEST_SYMBOL_COMPILE_TESTS)))
$(eval $(call NV_GENERATE_COMPILE_TEST_HEADER,types,$(NV_CONFTEST_TYPE_COMPILE_TESTS)))
$(obj)/conftest/patches.h: $(NV_CONFTEST_SCRIPT)
@mkdir -p $(obj)/conftest
@$(NV_CONFTEST_CMD) patch_check > $@
$(obj)/conftest/headers.h: $(NV_CONFTEST_SCRIPT)
@mkdir -p $(obj)/conftest
@$(NV_CONFTEST_CMD) test_kernel_headers '$(NV_CONFTEST_CFLAGS)' > $@
clean-dirs := $(obj)/conftest
# For any object files that depend on conftest, declare the dependency here.
$(addprefix $(obj)/,$(NV_OBJECTS_DEPEND_ON_CONFTEST)): | $(NV_CONFTEST_HEADERS)
# Sanity checks of the build environment and target system/kernel
BUILD_SANITY_CHECKS = \
cc_sanity_check \
cc_version_check \
dom0_sanity_check \
xen_sanity_check \
preempt_rt_sanity_check \
vgpu_kvm_sanity_check \
module_symvers_sanity_check
.PHONY: $(BUILD_SANITY_CHECKS)
$(BUILD_SANITY_CHECKS):
@$(NV_CONFTEST_CMD) $@ full_output
# Perform all sanity checks before generating the conftest headers
$(NV_CONFTEST_HEADERS): | $(BUILD_SANITY_CHECKS)
# Make the conftest headers depend on the kernel version string
$(obj)/conftest/uts_release: NV_GENERATE_UTS_RELEASE
@mkdir -p $(dir $@)
@NV_UTS_RELEASE="// Kernel version: `$(NV_CONFTEST_CMD) compile_tests '$(NV_CONFTEST_CFLAGS)' uts_release`"; \
if ! [ -f "$@" ] || [ "$$NV_UTS_RELEASE" != "`cat $@`" ]; \
then echo "$$NV_UTS_RELEASE" > $@; fi
.PHONY: NV_GENERATE_UTS_RELEASE
$(NV_CONFTEST_HEADERS): $(obj)/conftest/uts_release

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#
# This Makefile was automatically generated; do not edit.
#
###########################################################################
# Makefile for NVIDIA Linux GPU driver kernel modules
###########################################################################
# This makefile is read twice: when a user or nvidia-installer invokes
# 'make', this file is read. It then invokes the Linux kernel's
# Kbuild. Modern versions of Kbuild will then read the Kbuild file in
# this directory. However, old versions of Kbuild will instead read
# this Makefile. For backwards compatibility, when read by Kbuild
# (recognized by KERNELRELEASE not being empty), do nothing but
# include the Kbuild file in this directory.
ifneq ($(KERNELRELEASE),)
include $(src)/Kbuild
else
# Determine the location of the Linux kernel source tree, and of the
# kernel's output tree. Use this to invoke Kbuild, and pass the paths
# to the source and output trees to NVIDIA's Kbuild file via
# NV_KERNEL_{SOURCES,OUTPUT}.
ifdef SYSSRC
KERNEL_SOURCES := $(SYSSRC)
else
KERNEL_UNAME ?= $(shell uname -r)
KERNEL_MODLIB := /lib/modules/$(KERNEL_UNAME)
KERNEL_SOURCES := $(shell test -d $(KERNEL_MODLIB)/source && echo $(KERNEL_MODLIB)/source || echo $(KERNEL_MODLIB)/build)
endif
KERNEL_OUTPUT := $(KERNEL_SOURCES)
KBUILD_PARAMS :=
ifdef SYSOUT
ifneq ($(SYSOUT), $(KERNEL_SOURCES))
KERNEL_OUTPUT := $(SYSOUT)
KBUILD_PARAMS := KBUILD_OUTPUT=$(KERNEL_OUTPUT)
endif
else
KERNEL_UNAME ?= $(shell uname -r)
KERNEL_MODLIB := /lib/modules/$(KERNEL_UNAME)
ifeq ($(KERNEL_SOURCES), $(KERNEL_MODLIB)/source)
KERNEL_OUTPUT := $(KERNEL_MODLIB)/build
KBUILD_PARAMS := KBUILD_OUTPUT=$(KERNEL_OUTPUT)
endif
endif
CC ?= cc
LD ?= ld
OBJDUMP ?= objdump
ifndef ARCH
ARCH := $(shell uname -m | sed -e 's/i.86/i386/' \
-e 's/armv[0-7]\w\+/arm/' \
-e 's/aarch64/arm64/' \
-e 's/ppc64le/powerpc/' \
)
endif
NV_KERNEL_MODULES ?= $(wildcard nvidia nvidia-uvm nvidia-vgpu-vfio nvidia-modeset nvidia-drm nvidia-peermem)
NV_KERNEL_MODULES := $(filter-out $(NV_EXCLUDE_KERNEL_MODULES), \
$(NV_KERNEL_MODULES))
NV_VERBOSE ?=
SPECTRE_V2_RETPOLINE ?= 0
ifeq ($(NV_VERBOSE),1)
KBUILD_PARAMS += V=1
endif
KBUILD_PARAMS += -C $(KERNEL_SOURCES) M=$(CURDIR)
KBUILD_PARAMS += ARCH=$(ARCH)
KBUILD_PARAMS += NV_KERNEL_SOURCES=$(KERNEL_SOURCES)
KBUILD_PARAMS += NV_KERNEL_OUTPUT=$(KERNEL_OUTPUT)
KBUILD_PARAMS += NV_KERNEL_MODULES="$(NV_KERNEL_MODULES)"
KBUILD_PARAMS += INSTALL_MOD_DIR=kernel/drivers/video
KBUILD_PARAMS += NV_SPECTRE_V2=$(SPECTRE_V2_RETPOLINE)
.PHONY: modules module clean clean_conftest modules_install
modules clean modules_install:
@$(MAKE) "LD=$(LD)" "CC=$(CC)" "OBJDUMP=$(OBJDUMP)" $(KBUILD_PARAMS) $@
@if [ "$@" = "modules" ]; then \
for module in $(NV_KERNEL_MODULES); do \
if [ -x split-object-file.sh ]; then \
./split-object-file.sh $$module.ko; \
fi; \
done; \
fi
# Compatibility target for scripts that may be directly calling the
# "module" target from the old build system.
module: modules
# Check if the any of kernel module linker scripts exist. If they do, pass
# them as linker options (via variable NV_MODULE_LD_SCRIPTS) while building
# the kernel interface object files. These scripts do some processing on the
# module symbols on which the Linux kernel's module resolution is dependent
# and hence must be used whenever present.
LD_SCRIPT ?= $(KERNEL_SOURCES)/scripts/module-common.lds \
$(KERNEL_SOURCES)/arch/$(ARCH)/kernel/module.lds \
$(KERNEL_OUTPUT)/scripts/module.lds
NV_MODULE_COMMON_SCRIPTS := $(foreach s, $(wildcard $(LD_SCRIPT)), -T $(s))
# Use $* to match the stem % in the kernel interface file %-linux.o. Replace
# "nv" with "nvidia" in $* as appropriate: e.g. nv-modeset-linux.o links
# nvidia-modeset.mod.o and nvidia-modeset/nv-modeset-interface.o. The kernel
# interface file must have the .mod.o object linked into it: otherwise, the
# kernel module produced by linking the interface against its corresponding
# core object file will not be loadable. The .mod.o file is built as part of
# the MODPOST process (stage 2), so the rule to build the kernel interface
# cannot be defined in the *Kbuild files, which are only used during stage 1.
%-linux.o: modules
$(LD) $(NV_MODULE_COMMON_SCRIPTS) -r -o $@ \
$(subst nv,nvidia,$*).mod.o $(subst nv,nvidia,$*)/$*-interface.o
# Kbuild's "clean" rule won't clean up the conftest headers on its own, and
# clean-dirs doesn't appear to work as advertised.
clean_conftest:
$(RM) -r conftest
clean: clean_conftest
endif # KERNELRELEASE

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/*
* SPDX-FileCopyrightText: Copyright (c) 2014 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef _CONFTEST_H
#define _CONFTEST_H
#include "conftest/headers.h"
#include "conftest/functions.h"
#include "conftest/generic.h"
#include "conftest/macros.h"
#include "conftest/symbols.h"
#include "conftest/types.h"
#endif

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/*
* SPDX-FileCopyrightText: Copyright (c) 2018-2018 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
/*! \brief
* Define compile time symbols for CPU type and operating system type.
* This file should only contain preprocessor commands so that
* there are no dependencies on other files.
*
* cpuopsys.h
*
* Copyright (c) 2001, Nvidia Corporation. All rights reserved.
*/
/*!
* Uniform names are defined for compile time options to distinguish
* CPU types and Operating systems.
* Distinctions between CPU and OpSys should be orthogonal.
*
* These uniform names have initially been defined by keying off the
* makefile/build names defined for builds in the OpenGL group.
* Getting the uniform names defined for other builds may require
* different qualifications.
*
* The file is placed here to allow for the possibility of all driver
* components using the same naming convention for conditional compilation.
*/
#ifndef CPUOPSYS_H
#define CPUOPSYS_H
/*****************************************************************************/
/* Define all OS/CPU-Chip related symbols */
/* ***** WINDOWS variations */
#if defined(_WIN32) || defined(_WIN16)
# define NV_WINDOWS
# if defined(_WIN32_WINNT)
# define NV_WINDOWS_NT
# elif defined(_WIN32_WCE)
# define NV_WINDOWS_CE
# elif !defined(NV_MODS)
# define NV_WINDOWS_9X
# endif
#endif /* _WIN32 || defined(_WIN16) */
/* ***** Unix variations */
#if defined(__linux__) && !defined(NV_LINUX) && !defined(NV_VMWARE)
# define NV_LINUX
#endif /* defined(__linux__) */
#if defined(__VMWARE__) && !defined(NV_VMWARE)
# define NV_VMWARE
#endif /* defined(__VMWARE__) */
/* SunOS + gcc */
#if defined(__sun__) && defined(__svr4__) && !defined(NV_SUNOS)
# define NV_SUNOS
#endif /* defined(__sun__) && defined(__svr4__) */
/* SunOS + Sun Compiler (named SunPro, Studio or Forte) */
#if defined(__SUNPRO_C) || defined(__SUNPRO_CC)
# define NV_SUNPRO_C
# define NV_SUNOS
#endif /* defined(_SUNPRO_C) || defined(__SUNPRO_CC) */
#if defined(__FreeBSD__) && !defined(NV_BSD)
# define NV_BSD
#endif /* defined(__FreeBSD__) */
/* XXXar don't define NV_UNIX on MacOSX or vxworks or QNX */
#if (defined(__unix__) || defined(__unix) || defined(__INTEGRITY) ) && !defined(nvmacosx) && !defined(vxworks) && !defined(NV_UNIX) && !defined(__QNX__) && !defined(__QNXNTO__)/* XXX until removed from Makefiles */
# define NV_UNIX
#endif /* defined(__unix__) */
#if (defined(__QNX__) || defined(__QNXNTO__)) && !defined(NV_QNX)
# define NV_QNX
#endif
#if (defined(__ANDROID__) || defined(ANDROID)) && !defined(NV_ANDROID)
# define NV_ANDROID
#endif
#if defined(DceCore) && !defined(NV_DCECORE)
# define NV_DCECORE
#endif
/* ***** Apple variations */
#if defined(macintosh) || defined(__APPLE__)
# define NV_MACINTOSH
# if defined(__MACH__)
# define NV_MACINTOSH_OSX
# else
# define NV_MACINTOSH_OS9
# endif
# if defined(__LP64__)
# define NV_MACINTOSH_64
# endif
#endif /* defined(macintosh) */
/* ***** VxWorks */
/* Tornado 2.21 is gcc 2.96 and #defines __vxworks. */
/* Tornado 2.02 is gcc 2.7.2 and doesn't define any OS symbol, so we rely on */
/* the build system #defining vxworks. */
#if defined(__vxworks) || defined(vxworks)
# define NV_VXWORKS
#endif
/* ***** Integrity OS */
#if defined(__INTEGRITY)
# if !defined(NV_INTEGRITY)
# define NV_INTEGRITY
# endif
#endif
/* ***** Processor type variations */
/* Note: The prefix NV_CPU_* is taken by Nvcm.h */
#if ((defined(_M_IX86) || defined(__i386__) || defined(__i386)) && !defined(NVCPU_X86)) /* XXX until removed from Makefiles */
/* _M_IX86 for windows, __i386__ for Linux (or any x86 using gcc) */
/* __i386 for Studio compiler on Solaris x86 */
# define NVCPU_X86 /* any IA32 machine (not x86-64) */
# define NVCPU_MIN_PAGE_SHIFT 12
#endif
#if defined(_WIN32) && defined(_M_IA64)
# define NVCPU_IA64_WINDOWS /* any IA64 for Windows opsys */
#endif
#if defined(NV_LINUX) && defined(__ia64__)
# define NVCPU_IA64_LINUX /* any IA64 for Linux opsys */
#endif
#if defined(NVCPU_IA64_WINDOWS) || defined(NVCPU_IA64_LINUX) || defined(IA64)
# define NVCPU_IA64 /* any IA64 for any opsys */
#endif
#if (defined(NV_MACINTOSH) && !(defined(__i386__) || defined(__x86_64__))) || defined(__PPC__) || defined(__ppc)
# if defined(__powerpc64__) && defined(__LITTLE_ENDIAN__)
# ifndef NVCPU_PPC64LE
# define NVCPU_PPC64LE /* PPC 64-bit little endian */
# endif
# else
# ifndef NVCPU_PPC
# define NVCPU_PPC /* any non-PPC64LE PowerPC architecture */
# endif
# ifndef NV_BIG_ENDIAN
# define NV_BIG_ENDIAN
# endif
# endif
# define NVCPU_FAMILY_PPC
#endif
#if defined(__x86_64) || defined(AMD64) || defined(_M_AMD64)
# define NVCPU_X86_64 /* any x86-64 for any opsys */
#endif
#if defined(NVCPU_X86) || defined(NVCPU_X86_64)
# define NVCPU_FAMILY_X86
#endif
#if defined(__riscv) && (__riscv_xlen==64)
# define NVCPU_RISCV64
# if defined(__nvriscv)
# define NVCPU_NVRISCV64
# endif
#endif
#if defined(__arm__) || defined(_M_ARM)
/*
* 32-bit instruction set on, e.g., ARMv7 or AArch32 execution state
* on ARMv8
*/
# define NVCPU_ARM
# define NVCPU_MIN_PAGE_SHIFT 12
#endif
#if defined(__aarch64__) || defined(__ARM64__) || defined(_M_ARM64)
# define NVCPU_AARCH64 /* 64-bit A64 instruction set on ARMv8 */
# define NVCPU_MIN_PAGE_SHIFT 12
#endif
#if defined(NVCPU_ARM) || defined(NVCPU_AARCH64)
# define NVCPU_FAMILY_ARM
#endif
#if defined(__SH4__)
# ifndef NVCPU_SH4
# define NVCPU_SH4 /* Renesas (formerly Hitachi) SH4 */
# endif
# if defined NV_WINDOWS_CE
# define NVCPU_MIN_PAGE_SHIFT 12
# endif
#endif
/* For Xtensa processors */
#if defined(__XTENSA__)
# define NVCPU_XTENSA
# if defined(__XTENSA_EB__)
# define NV_BIG_ENDIAN
# endif
#endif
/*
* Other flavors of CPU type should be determined at run-time.
* For example, an x86 architecture with/without SSE.
* If it can compile, then there's no need for a compile time option.
* For some current GCC limitations, these may be fixed by using the Intel
* compiler for certain files in a Linux build.
*/
/* The minimum page size can be determined from the minimum page shift */
#if defined(NVCPU_MIN_PAGE_SHIFT)
#define NVCPU_MIN_PAGE_SIZE (1 << NVCPU_MIN_PAGE_SHIFT)
#endif
#if defined(NVCPU_IA64) || defined(NVCPU_X86_64) || \
defined(NV_MACINTOSH_64) || defined(NVCPU_AARCH64) || \
defined(NVCPU_PPC64LE) || defined(NVCPU_RISCV64)
# define NV_64_BITS /* all architectures where pointers are 64 bits */
#else
/* we assume 32 bits. I don't see a need for NV_16_BITS. */
#endif
/* For verification-only features not intended to be included in normal drivers */
#if (defined(NV_MODS) || defined(NV_GSP_MODS)) && defined(DEBUG) && !defined(DISABLE_VERIF_FEATURES)
#define NV_VERIF_FEATURES
#endif
/*
* New, safer family of #define's -- these ones use 0 vs. 1 rather than
* defined/!defined. This is advantageous because if you make a typo,
* say misspelled ENDIAN:
*
* #if NVCPU_IS_BIG_ENDAIN
*
* ...some compilers can give you a warning telling you that you screwed up.
* The compiler can also give you a warning if you forget to #include
* "cpuopsys.h" in your code before the point where you try to use these
* conditionals.
*
* Also, the names have been prefixed in more cases with "CPU" or "OS" for
* increased clarity. You can tell the names apart from the old ones because
* they all use "_IS_" in the name.
*
* Finally, these can be used in "if" statements and not just in #if's. For
* example:
*
* if (NVCPU_IS_BIG_ENDIAN) x = Swap32(x);
*
* Maybe some day in the far-off future these can replace the old #define's.
*/
#if defined(NV_MODS)
#define NV_IS_MODS 1
#else
#define NV_IS_MODS 0
#endif
#if defined(NV_GSP_MODS)
#define NV_IS_GSP_MODS 1
#else
#define NV_IS_GSP_MODS 0
#endif
#if defined(NV_WINDOWS)
#define NVOS_IS_WINDOWS 1
#else
#define NVOS_IS_WINDOWS 0
#endif
#if defined(NV_WINDOWS_CE)
#define NVOS_IS_WINDOWS_CE 1
#else
#define NVOS_IS_WINDOWS_CE 0
#endif
#if defined(NV_LINUX)
#define NVOS_IS_LINUX 1
#else
#define NVOS_IS_LINUX 0
#endif
#if defined(NV_UNIX)
#define NVOS_IS_UNIX 1
#else
#define NVOS_IS_UNIX 0
#endif
#if defined(NV_BSD)
#define NVOS_IS_FREEBSD 1
#else
#define NVOS_IS_FREEBSD 0
#endif
#if defined(NV_SUNOS)
#define NVOS_IS_SOLARIS 1
#else
#define NVOS_IS_SOLARIS 0
#endif
#if defined(NV_VMWARE)
#define NVOS_IS_VMWARE 1
#else
#define NVOS_IS_VMWARE 0
#endif
#if defined(NV_QNX)
#define NVOS_IS_QNX 1
#else
#define NVOS_IS_QNX 0
#endif
#if defined(NV_ANDROID)
#define NVOS_IS_ANDROID 1
#else
#define NVOS_IS_ANDROID 0
#endif
#if defined(NV_MACINTOSH)
#define NVOS_IS_MACINTOSH 1
#else
#define NVOS_IS_MACINTOSH 0
#endif
#if defined(NV_VXWORKS)
#define NVOS_IS_VXWORKS 1
#else
#define NVOS_IS_VXWORKS 0
#endif
#if defined(NV_LIBOS)
#define NVOS_IS_LIBOS 1
#else
#define NVOS_IS_LIBOS 0
#endif
#if defined(NV_INTEGRITY)
#define NVOS_IS_INTEGRITY 1
#else
#define NVOS_IS_INTEGRITY 0
#endif
#if defined(NVCPU_X86)
#define NVCPU_IS_X86 1
#else
#define NVCPU_IS_X86 0
#endif
#if defined(NVCPU_RISCV64)
#define NVCPU_IS_RISCV64 1
#else
#define NVCPU_IS_RISCV64 0
#endif
#if defined(NVCPU_NVRISCV64)
#define NVCPU_IS_NVRISCV64 1
#else
#define NVCPU_IS_NVRISCV64 0
#endif
#if defined(NVCPU_IA64)
#define NVCPU_IS_IA64 1
#else
#define NVCPU_IS_IA64 0
#endif
#if defined(NVCPU_X86_64)
#define NVCPU_IS_X86_64 1
#else
#define NVCPU_IS_X86_64 0
#endif
#if defined(NVCPU_FAMILY_X86)
#define NVCPU_IS_FAMILY_X86 1
#else
#define NVCPU_IS_FAMILY_X86 0
#endif
#if defined(NVCPU_PPC)
#define NVCPU_IS_PPC 1
#else
#define NVCPU_IS_PPC 0
#endif
#if defined(NVCPU_PPC64LE)
#define NVCPU_IS_PPC64LE 1
#else
#define NVCPU_IS_PPC64LE 0
#endif
#if defined(NVCPU_FAMILY_PPC)
#define NVCPU_IS_FAMILY_PPC 1
#else
#define NVCPU_IS_FAMILY_PPC 0
#endif
#if defined(NVCPU_ARM)
#define NVCPU_IS_ARM 1
#else
#define NVCPU_IS_ARM 0
#endif
#if defined(NVCPU_AARCH64)
#define NVCPU_IS_AARCH64 1
#else
#define NVCPU_IS_AARCH64 0
#endif
#if defined(NVCPU_FAMILY_ARM)
#define NVCPU_IS_FAMILY_ARM 1
#else
#define NVCPU_IS_FAMILY_ARM 0
#endif
#if defined(NVCPU_SH4)
#define NVCPU_IS_SH4 1
#else
#define NVCPU_IS_SH4 0
#endif
#if defined(NVCPU_XTENSA)
#define NVCPU_IS_XTENSA 1
#else
#define NVCPU_IS_XTENSA 0
#endif
#if defined(NV_BIG_ENDIAN)
#define NVCPU_IS_BIG_ENDIAN 1
#else
#define NVCPU_IS_BIG_ENDIAN 0
#endif
#if defined(NV_64_BITS)
#define NVCPU_IS_64_BITS 1
#else
#define NVCPU_IS_64_BITS 0