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nvidia-open-gpu-kernel-modules/kernel-open/conftest.sh
Andy Ritger 1739a20efc
515.43.04
2022-05-09 13:18:59 -07:00

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#!/bin/sh
PATH="${PATH}:/bin:/sbin:/usr/bin"
# make sure we are in the directory containing this script
SCRIPTDIR=`dirname $0`
cd $SCRIPTDIR
CC="$1"
ARCH=$2
ISYSTEM=`$CC -print-file-name=include 2> /dev/null`
SOURCES=$3
HEADERS=$SOURCES/include
OUTPUT=$4
XEN_PRESENT=1
PREEMPT_RT_PRESENT=0
KERNEL_ARCH="$ARCH"
if [ "$ARCH" = "i386" -o "$ARCH" = "x86_64" ]; then
if [ -d "$SOURCES/arch/x86" ]; then
KERNEL_ARCH="x86"
fi
fi
# VGX_BUILD parameter defined only for VGX builds (vGPU Host driver)
# VGX_KVM_BUILD parameter defined only vGPU builds on KVM hypervisor
# GRID_BUILD parameter defined only for GRID builds (GRID Guest driver)
# GRID_BUILD_CSP parameter defined only for GRID CSP builds (GRID Guest driver for CSPs)
test_xen() {
#
# Determine if the target kernel is a Xen kernel. It used to be
# sufficient to check for CONFIG_XEN, but the introduction of
# modular para-virtualization (CONFIG_PARAVIRT, etc.) and
# Xen guest support, it is no longer possible to determine the
# target environment at build time. Therefore, if both
# CONFIG_XEN and CONFIG_PARAVIRT are present, text_xen() treats
# the kernel as a stand-alone kernel.
#
if ! test_configuration_option CONFIG_XEN ||
test_configuration_option CONFIG_PARAVIRT; then
XEN_PRESENT=0
fi
}
append_conftest() {
#
# Echo data from stdin: this is a transitional function to make it easier
# to port conftests from drivers with parallel conftest generation to
# older driver versions
#
while read LINE; do
echo ${LINE}
done
}
translate_and_preprocess_header_files() {
# Inputs:
# $1: list of relative file paths
#
# This routine creates an upper case, underscore version of each of the
# relative file paths, and uses that as the token to either define or
# undefine in a C header file. For example, linux/fence.h becomes
# NV_LINUX_FENCE_H_PRESENT, and that is either defined or undefined, in the
# output (which goes to stdout, just like the rest of this file).
# -MG or -MD can interfere with the use of -M and -M -MG for testing file
# existence; filter out any occurrences from CFLAGS. CFLAGS is intentionally
# wrapped with whitespace in the input to sed(1) so the regex can match zero
# or more occurrences of "-MD" or "-MG", surrounded by whitespace to avoid
# accidental matches with tokens that happen to contain either of those
# strings, without special handling of the beginning or the end of the line.
TEST_CFLAGS=`echo "-E -M $CFLAGS " | sed -e 's/\( -M[DG]\)* / /g'`
for file in $@; do
local file_define=NV_`echo $file | tr '/.' '_' | tr '-' '_' | tr 'a-z' 'A-Z'`_PRESENT
CODE="#include <$file>"
if echo "$CODE" | $CC $TEST_CFLAGS - > /dev/null 2>&1; then
echo "#define $file_define"
else
# If preprocessing failed, it could have been because the header
# file under test is not present, or because it is present but
# depends upon the inclusion of other header files. Attempting
# preprocessing again with -MG will ignore a missing header file
# but will still fail if the header file is present.
if echo "$CODE" | $CC $TEST_CFLAGS -MG - > /dev/null 2>&1; then
echo "#undef $file_define"
else
echo "#define $file_define"
fi
fi
done
}
test_headers() {
#
# Determine which header files (of a set that may or may not be
# present) are provided by the target kernel.
#
FILES="asm/system.h"
FILES="$FILES drm/drmP.h"
FILES="$FILES drm/drm_auth.h"
FILES="$FILES drm/drm_gem.h"
FILES="$FILES drm/drm_crtc.h"
FILES="$FILES drm/drm_atomic.h"
FILES="$FILES drm/drm_atomic_helper.h"
FILES="$FILES drm/drm_encoder.h"
FILES="$FILES drm/drm_atomic_uapi.h"
FILES="$FILES drm/drm_drv.h"
FILES="$FILES drm/drm_framebuffer.h"
FILES="$FILES drm/drm_connector.h"
FILES="$FILES drm/drm_probe_helper.h"
FILES="$FILES drm/drm_blend.h"
FILES="$FILES drm/drm_fourcc.h"
FILES="$FILES drm/drm_prime.h"
FILES="$FILES drm/drm_plane.h"
FILES="$FILES drm/drm_vblank.h"
FILES="$FILES drm/drm_file.h"
FILES="$FILES drm/drm_ioctl.h"
FILES="$FILES drm/drm_device.h"
FILES="$FILES drm/drm_mode_config.h"
FILES="$FILES dt-bindings/interconnect/tegra_icc_id.h"
FILES="$FILES generated/autoconf.h"
FILES="$FILES generated/compile.h"
FILES="$FILES generated/utsrelease.h"
FILES="$FILES linux/efi.h"
FILES="$FILES linux/kconfig.h"
FILES="$FILES linux/platform/tegra/mc_utils.h"
FILES="$FILES linux/semaphore.h"
FILES="$FILES linux/printk.h"
FILES="$FILES linux/ratelimit.h"
FILES="$FILES linux/prio_tree.h"
FILES="$FILES linux/log2.h"
FILES="$FILES linux/of.h"
FILES="$FILES linux/bug.h"
FILES="$FILES linux/sched/signal.h"
FILES="$FILES linux/sched/task.h"
FILES="$FILES linux/sched/task_stack.h"
FILES="$FILES xen/ioemu.h"
FILES="$FILES linux/fence.h"
FILES="$FILES linux/dma-resv.h"
FILES="$FILES soc/tegra/chip-id.h"
FILES="$FILES soc/tegra/fuse.h"
FILES="$FILES soc/tegra/tegra_bpmp.h"
FILES="$FILES video/nv_internal.h"
FILES="$FILES linux/platform/tegra/dce/dce-client-ipc.h"
FILES="$FILES linux/nvhost.h"
FILES="$FILES linux/nvhost_t194.h"
FILES="$FILES asm/book3s/64/hash-64k.h"
FILES="$FILES asm/set_memory.h"
FILES="$FILES asm/prom.h"
FILES="$FILES asm/powernv.h"
FILES="$FILES linux/atomic.h"
FILES="$FILES asm/barrier.h"
FILES="$FILES asm/opal-api.h"
FILES="$FILES sound/hdaudio.h"
FILES="$FILES asm/pgtable_types.h"
FILES="$FILES linux/stringhash.h"
FILES="$FILES linux/dma-map-ops.h"
FILES="$FILES rdma/peer_mem.h"
FILES="$FILES sound/hda_codec.h"
FILES="$FILES linux/dma-buf.h"
FILES="$FILES linux/time.h"
FILES="$FILES linux/platform_device.h"
FILES="$FILES linux/mutex.h"
FILES="$FILES linux/reset.h"
FILES="$FILES linux/of_platform.h"
FILES="$FILES linux/of_device.h"
FILES="$FILES linux/of_gpio.h"
FILES="$FILES linux/gpio.h"
FILES="$FILES linux/gpio/consumer.h"
FILES="$FILES linux/interconnect.h"
FILES="$FILES linux/pm_runtime.h"
FILES="$FILES linux/clk.h"
FILES="$FILES linux/clk-provider.h"
FILES="$FILES linux/ioasid.h"
FILES="$FILES linux/stdarg.h"
FILES="$FILES linux/iosys-map.h"
FILES="$FILES asm/coco.h"
translate_and_preprocess_header_files $FILES
}
build_cflags() {
BASE_CFLAGS="-O2 -D__KERNEL__ \
-DKBUILD_BASENAME=\"#conftest$$\" -DKBUILD_MODNAME=\"#conftest$$\" \
-nostdinc -isystem $ISYSTEM"
if [ "$OUTPUT" != "$SOURCES" ]; then
OUTPUT_CFLAGS="-I$OUTPUT/include2 -I$OUTPUT/include"
if [ -f "$OUTPUT/include/generated/autoconf.h" ]; then
AUTOCONF_FILE="$OUTPUT/include/generated/autoconf.h"
else
AUTOCONF_FILE="$OUTPUT/include/linux/autoconf.h"
fi
else
if [ -f "$HEADERS/generated/autoconf.h" ]; then
AUTOCONF_FILE="$HEADERS/generated/autoconf.h"
else
AUTOCONF_FILE="$HEADERS/linux/autoconf.h"
fi
fi
test_xen
if [ "$XEN_PRESENT" != "0" ]; then
MACH_CFLAGS="-I$HEADERS/asm/mach-xen"
fi
SOURCE_HEADERS="$HEADERS"
SOURCE_ARCH_HEADERS="$SOURCES/arch/$KERNEL_ARCH/include"
OUTPUT_HEADERS="$OUTPUT/include"
OUTPUT_ARCH_HEADERS="$OUTPUT/arch/$KERNEL_ARCH/include"
# Look for mach- directories on this arch, and add it to the list of
# includes if that platform is enabled in the configuration file, which
# may have a definition like this:
# #define CONFIG_ARCH_<MACHUPPERCASE> 1
for _mach_dir in `ls -1d $SOURCES/arch/$KERNEL_ARCH/mach-* 2>/dev/null`; do
_mach=`echo $_mach_dir | \
sed -e "s,$SOURCES/arch/$KERNEL_ARCH/mach-,," | \
tr 'a-z' 'A-Z'`
grep "CONFIG_ARCH_$_mach \+1" $AUTOCONF_FILE > /dev/null 2>&1
if [ $? -eq 0 ]; then
MACH_CFLAGS="$MACH_CFLAGS -I$_mach_dir/include"
fi
done
if [ "$ARCH" = "arm" ]; then
MACH_CFLAGS="$MACH_CFLAGS -D__LINUX_ARM_ARCH__=7"
fi
# Add the mach-default includes (only found on x86/older kernels)
MACH_CFLAGS="$MACH_CFLAGS -I$SOURCE_HEADERS/asm-$KERNEL_ARCH/mach-default"
MACH_CFLAGS="$MACH_CFLAGS -I$SOURCE_ARCH_HEADERS/asm/mach-default"
CFLAGS="$BASE_CFLAGS $MACH_CFLAGS $OUTPUT_CFLAGS -include $AUTOCONF_FILE"
CFLAGS="$CFLAGS -I$SOURCE_HEADERS"
CFLAGS="$CFLAGS -I$SOURCE_HEADERS/uapi"
CFLAGS="$CFLAGS -I$SOURCE_HEADERS/xen"
CFLAGS="$CFLAGS -I$OUTPUT_HEADERS/generated/uapi"
CFLAGS="$CFLAGS -I$SOURCE_ARCH_HEADERS"
CFLAGS="$CFLAGS -I$SOURCE_ARCH_HEADERS/uapi"
CFLAGS="$CFLAGS -I$OUTPUT_ARCH_HEADERS/generated"
CFLAGS="$CFLAGS -I$OUTPUT_ARCH_HEADERS/generated/uapi"
if [ -n "$BUILD_PARAMS" ]; then
CFLAGS="$CFLAGS -D$BUILD_PARAMS"
fi
# Check if gcc supports asm goto and set CC_HAVE_ASM_GOTO if it does.
# Older kernels perform this check and set this flag in Kbuild, and since
# conftest.sh runs outside of Kbuild it ends up building without this flag.
# Starting with commit e9666d10a5677a494260d60d1fa0b73cc7646eb3 this test
# is done within Kconfig, and the preprocessor flag is no longer needed.
GCC_GOTO_SH="$SOURCES/build/gcc-goto.sh"
if [ -f "$GCC_GOTO_SH" ]; then
# Newer versions of gcc-goto.sh don't print anything on success, but
# this is okay, since it's no longer necessary to set CC_HAVE_ASM_GOTO
# based on the output of those versions of gcc-goto.sh.
if [ `/bin/sh "$GCC_GOTO_SH" "$CC"` = "y" ]; then
CFLAGS="$CFLAGS -DCC_HAVE_ASM_GOTO"
fi
fi
#
# If CONFIG_HAVE_FENTRY is enabled and gcc supports -mfentry flags then set
# CC_USING_FENTRY and add -mfentry into cflags.
#
# linux/ftrace.h file indirectly gets included into the conftest source and
# fails to get compiled, because conftest.sh runs outside of Kbuild it ends
# up building without -mfentry and CC_USING_FENTRY flags.
#
grep "CONFIG_HAVE_FENTRY \+1" $AUTOCONF_FILE > /dev/null 2>&1
if [ $? -eq 0 ]; then
echo "" > conftest$$.c
$CC -mfentry -c -x c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
CFLAGS="$CFLAGS -mfentry -DCC_USING_FENTRY"
fi
fi
}
CONFTEST_PREAMBLE="#include \"conftest/headers.h\"
#if defined(NV_LINUX_KCONFIG_H_PRESENT)
#include <linux/kconfig.h>
#endif
#if defined(NV_GENERATED_AUTOCONF_H_PRESENT)
#include <generated/autoconf.h>
#else
#include <linux/autoconf.h>
#endif
#if defined(CONFIG_XEN) && \
defined(CONFIG_XEN_INTERFACE_VERSION) && !defined(__XEN_INTERFACE_VERSION__)
#define __XEN_INTERFACE_VERSION__ CONFIG_XEN_INTERFACE_VERSION
#endif
#if defined(CONFIG_KASAN) && defined(CONFIG_ARM64)
#if defined(CONFIG_KASAN_SW_TAGS)
#define KASAN_SHADOW_SCALE_SHIFT 4
#else
#define KASAN_SHADOW_SCALE_SHIFT 3
#endif
#endif"
test_configuration_option() {
#
# Check to see if the given configuration option is defined
#
get_configuration_option $1 >/dev/null 2>&1
return $?
}
set_configuration() {
#
# Set a specific configuration option. This function is called to always
# enable a configuration, in order to verify whether the test code for that
# configuration is no longer required and the corresponding
# conditionally-compiled code in the driver can be removed.
#
DEF="$1"
if [ "$3" = "" ]
then
VAL=""
CAT="$2"
else
VAL="$2"
CAT="$3"
fi
echo "#define ${DEF} ${VAL}" | append_conftest "${CAT}"
}
unset_configuration() {
#
# Un-set a specific configuration option. This function is called to
# always disable a configuration, in order to verify whether the test
# code for that configuration is no longer required and the corresponding
# conditionally-compiled code in the driver can be removed.
#
DEF="$1"
CAT="$2"
echo "#undef ${DEF}" | append_conftest "${CAT}"
}
compile_check_conftest() {
#
# Compile the current conftest C file and check+output the result
#
CODE="$1"
DEF="$2"
VAL="$3"
CAT="$4"
echo "$CONFTEST_PREAMBLE
$CODE" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
if [ "${CAT}" = "functions" ]; then
#
# The logic for "functions" compilation tests is inverted compared to
# other compilation steps: if the function is present, the code
# snippet will fail to compile because the function call won't match
# the prototype. If the function is not present, the code snippet
# will produce an object file with the function as an unresolved
# symbol.
#
echo "#undef ${DEF}" | append_conftest "${CAT}"
else
echo "#define ${DEF} ${VAL}" | append_conftest "${CAT}"
fi
return
else
if [ "${CAT}" = "functions" ]; then
echo "#define ${DEF} ${VAL}" | append_conftest "${CAT}"
else
echo "#undef ${DEF}" | append_conftest "${CAT}"
fi
return
fi
}
export_symbol_present_conftest() {
#
# Check Module.symvers to see whether the given symbol is present.
#
SYMBOL="$1"
TAB=' '
if grep -e "${TAB}${SYMBOL}${TAB}.*${TAB}EXPORT_SYMBOL.*\$" \
"$OUTPUT/Module.symvers" >/dev/null 2>&1; then
echo "#define NV_IS_EXPORT_SYMBOL_PRESENT_$SYMBOL 1" |
append_conftest "symbols"
else
# May be a false negative if Module.symvers is absent or incomplete,
# or if the Module.symvers format changes.
echo "#define NV_IS_EXPORT_SYMBOL_PRESENT_$SYMBOL 0" |
append_conftest "symbols"
fi
}
export_symbol_gpl_conftest() {
#
# Check Module.symvers to see whether the given symbol is present and its
# export type is GPL-only (including deprecated GPL-only symbols).
#
SYMBOL="$1"
TAB=' '
if grep -e "${TAB}${SYMBOL}${TAB}.*${TAB}EXPORT_\(UNUSED_\)*SYMBOL_GPL\$" \
"$OUTPUT/Module.symvers" >/dev/null 2>&1; then
echo "#define NV_IS_EXPORT_SYMBOL_GPL_$SYMBOL 1" |
append_conftest "symbols"
else
# May be a false negative if Module.symvers is absent or incomplete,
# or if the Module.symvers format changes.
echo "#define NV_IS_EXPORT_SYMBOL_GPL_$SYMBOL 0" |
append_conftest "symbols"
fi
}
get_configuration_option() {
#
# Print the value of given configuration option, if defined
#
RET=1
OPTION=$1
OLD_FILE="linux/autoconf.h"
NEW_FILE="generated/autoconf.h"
FILE=""
if [ -f $HEADERS/$NEW_FILE -o -f $OUTPUT/include/$NEW_FILE ]; then
FILE=$NEW_FILE
elif [ -f $HEADERS/$OLD_FILE -o -f $OUTPUT/include/$OLD_FILE ]; then
FILE=$OLD_FILE
fi
if [ -n "$FILE" ]; then
#
# We are looking at a configured source tree; verify
# that its configuration includes the given option
# via a compile check, and print the option's value.
#
if [ -f $HEADERS/$FILE ]; then
INCLUDE_DIRECTORY=$HEADERS
elif [ -f $OUTPUT/include/$FILE ]; then
INCLUDE_DIRECTORY=$OUTPUT/include
else
return 1
fi
echo "#include <$FILE>
#ifndef $OPTION
#error $OPTION not defined!
#endif
$OPTION
" > conftest$$.c
$CC -E -P -I$INCLUDE_DIRECTORY -o conftest$$ conftest$$.c > /dev/null 2>&1
if [ -e conftest$$ ]; then
tr -d '\r\n\t ' < conftest$$
RET=$?
fi
rm -f conftest$$.c conftest$$
else
CONFIG=$OUTPUT/.config
if [ -f $CONFIG ] && grep "^$OPTION=" $CONFIG; then
grep "^$OPTION=" $CONFIG | cut -f 2- -d "="
RET=$?
fi
fi
return $RET
}
check_for_ib_peer_memory_symbols() {
local kernel_dir="$1"
local module_symvers="${kernel_dir}/Module.symvers"
local sym_ib_register="ib_register_peer_memory_client"
local sym_ib_unregister="ib_unregister_peer_memory_client"
local tab=' '
# Return 0 for true(no errors), 1 for false
if [ ! -f "${module_symvers}" ]; then
return 1
fi
if grep -e "${tab}${sym_ib_register}${tab}.*${tab}EXPORT_SYMBOL.*\$" \
"${module_symvers}" > /dev/null 2>&1 &&
grep -e "${tab}${sym_ib_unregister}${tab}.*${tab}EXPORT_SYMBOL.*\$" \
"${module_symvers}" > /dev/null 2>&1; then
return 0
else
return 1
fi
}
compile_test() {
case "$1" in
set_memory_uc)
#
# Determine if the set_memory_uc() function is present.
# It does not exist on all architectures.
#
CODE="
#include <linux/types.h>
#if defined(NV_ASM_SET_MEMORY_H_PRESENT)
#if defined(NV_ASM_PGTABLE_TYPES_H_PRESENT)
#include <asm/pgtable_types.h>
#endif
#include <asm/set_memory.h>
#else
#include <asm/cacheflush.h>
#endif
void conftest_set_memory_uc(void) {
set_memory_uc();
}"
compile_check_conftest "$CODE" "NV_SET_MEMORY_UC_PRESENT" "" "functions"
;;
set_memory_array_uc)
#
# Determine if the set_memory_array_uc() function is present.
# It does not exist on all architectures.
#
CODE="
#include <linux/types.h>
#if defined(NV_ASM_SET_MEMORY_H_PRESENT)
#if defined(NV_ASM_PGTABLE_TYPES_H_PRESENT)
#include <asm/pgtable_types.h>
#endif
#include <asm/set_memory.h>
#else
#include <asm/cacheflush.h>
#endif
void conftest_set_memory_array_uc(void) {
set_memory_array_uc();
}"
compile_check_conftest "$CODE" "NV_SET_MEMORY_ARRAY_UC_PRESENT" "" "functions"
;;
sysfs_slab_unlink)
#
# Determine if the sysfs_slab_unlink() function is present.
#
# This test is useful to check for the presence a fix for the deferred
# kmem_cache destroy feature (see nvbug: 2543505).
#
# Added by commit d50d82faa0c9 ("slub: fix failure when we delete and
# create a slab cache") in 4.18 (2018-06-27).
#
CODE="
#include <linux/slab.h>
void conftest_sysfs_slab_unlink(void) {
sysfs_slab_unlink();
}"
compile_check_conftest "$CODE" "NV_SYSFS_SLAB_UNLINK_PRESENT" "" "functions"
;;
list_is_first)
#
# Determine if the list_is_first() function is present.
#
# Added by commit 70b44595eafe ("mm, compaction: use free lists
# to quickly locate a migration source") in 5.1 (2019-03-05)
#
CODE="
#include <linux/list.h>
void conftest_list_is_first(void) {
list_is_first();
}"
compile_check_conftest "$CODE" "NV_LIST_IS_FIRST_PRESENT" "" "functions"
;;
set_pages_uc)
#
# Determine if the set_pages_uc() function is present.
# It does not exist on all architectures.
#
CODE="
#include <linux/types.h>
#if defined(NV_ASM_SET_MEMORY_H_PRESENT)
#if defined(NV_ASM_PGTABLE_TYPES_H_PRESENT)
#include <asm/pgtable_types.h>
#endif
#include <asm/set_memory.h>
#else
#include <asm/cacheflush.h>
#endif
void conftest_set_pages_uc(void) {
set_pages_uc();
}"
compile_check_conftest "$CODE" "NV_SET_PAGES_UC_PRESENT" "" "functions"
;;
set_pages_array_uc)
#
# Determine if the set_pages_array_uc() function is present.
# It does not exist on all architectures.
#
# set_pages_array_uc() was added by commit
# 0f3507555f6fa4acbc85a646d6e8766230db38fc ("x86, CPA: Add
# set_pages_arrayuc and set_pages_array_wb") in v2.6.30-rc1 (Thu Mar
# 19 14:51:15 2009)
#
CODE="
#include <linux/types.h>
#if defined(NV_ASM_SET_MEMORY_H_PRESENT)
#if defined(NV_ASM_PGTABLE_TYPES_H_PRESENT)
#include <asm/pgtable_types.h>
#endif
#include <asm/set_memory.h>
#else
#include <asm/cacheflush.h>
#endif
void conftest_set_pages_array_uc(void) {
set_pages_array_uc();
}"
compile_check_conftest "$CODE" "NV_SET_PAGES_ARRAY_UC_PRESENT" "" "functions"
;;
flush_cache_all)
#
# Determine if flush_cache_all() function is present
#
# flush_cache_all() was removed by commit id
# 68234df4ea79 ("arm64: kill flush_cache_all()") in 4.2 (2015-04-20)
# for aarch64
#
CODE="
#include <asm/cacheflush.h>
int conftest_flush_cache_all(void) {
return flush_cache_all();
}"
compile_check_conftest "$CODE" "NV_FLUSH_CACHE_ALL_PRESENT" "" "functions"
;;
pci_get_domain_bus_and_slot)
#
# Determine if the pci_get_domain_bus_and_slot() function
# is present.
#
# Added by commit 3c299dc22635 ("PCI: add
# pci_get_domain_bus_and_slot function") in 2.6.33.
#
CODE="
#include <linux/pci.h>
void conftest_pci_get_domain_bus_and_slot(void) {
pci_get_domain_bus_and_slot();
}"
compile_check_conftest "$CODE" "NV_PCI_GET_DOMAIN_BUS_AND_SLOT_PRESENT" "" "functions"
;;
pci_bus_address)
#
# Determine if the pci_bus_address() function is
# present.
#
# Added by commit 06cf56e497c8 ("PCI: Add pci_bus_address() to
# get bus address of a BAR") in v3.14
#
CODE="
#include <linux/pci.h>
void conftest_pci_bus_address(void) {
pci_bus_address();
}"
compile_check_conftest "$CODE" "NV_PCI_BUS_ADDRESS_PRESENT" "" "functions"
;;
hash__remap_4k_pfn)
#
# Determine if the hash__remap_4k_pfn() function is
# present.
#
# Added by commit 6cc1a0ee4ce2 ("powerpc/mm/radix: Add radix
# callback for pmd accessors") in v4.7 (committed 2016-04-29).
# Present only in arch/powerpc
#
CODE="
#if defined(NV_ASM_BOOK3S_64_HASH_64K_H_PRESENT)
#include <linux/mm.h>
#include <asm/book3s/64/hash-64k.h>
#endif
void conftest_hash__remap_4k_pfn(void) {
hash__remap_4k_pfn();
}"
compile_check_conftest "$CODE" "NV_HASH__REMAP_4K_PFN_PRESENT" "" "functions"
;;
register_cpu_notifier)
#
# Determine if register_cpu_notifier() is present
#
# Removed by commit 530e9b76ae8f ("cpu/hotplug: Remove obsolete
# cpu hotplug register/unregister functions") in v4.10
# (2016-12-21)
#
CODE="
#include <linux/cpu.h>
void conftest_register_cpu_notifier(void) {
register_cpu_notifier();
}" > conftest$$.c
compile_check_conftest "$CODE" "NV_REGISTER_CPU_NOTIFIER_PRESENT" "" "functions"
;;
cpuhp_setup_state)
#
# Determine if cpuhp_setup_state() is present
#
# Added by commit 5b7aa87e0482 ("cpu/hotplug: Implement
# setup/removal interface") in v4.6 (commited 2016-02-26)
#
# It is used as a replacement for register_cpu_notifier
CODE="
#include <linux/cpu.h>
void conftest_cpuhp_setup_state(void) {
cpuhp_setup_state();
}" > conftest$$.c
compile_check_conftest "$CODE" "NV_CPUHP_SETUP_STATE_PRESENT" "" "functions"
;;
ioremap_cache)
#
# Determine if the ioremap_cache() function is present.
# It does not exist on all architectures.
#
CODE="
#include <asm/io.h>
void conftest_ioremap_cache(void) {
ioremap_cache();
}"
compile_check_conftest "$CODE" "NV_IOREMAP_CACHE_PRESENT" "" "functions"
;;
ioremap_wc)
#
# Determine if the ioremap_wc() function is present.
# It does not exist on all architectures.
#
CODE="
#include <asm/io.h>
void conftest_ioremap_wc(void) {
ioremap_wc();
}"
compile_check_conftest "$CODE" "NV_IOREMAP_WC_PRESENT" "" "functions"
;;
file_operations)
# 'ioctl' field removed by commit b19dd42faf41
# ("bkl: Remove locked .ioctl file operation") in v2.6.36
CODE="
#include <linux/fs.h>
int conftest_file_operations(void) {
return offsetof(struct file_operations, ioctl);
}"
compile_check_conftest "$CODE" "NV_FILE_OPERATIONS_HAS_IOCTL" "" "types"
;;
sg_alloc_table)
#
# sg_alloc_table_from_pages added by commit efc42bc98058
# ("scatterlist: add sg_alloc_table_from_pages function") in v3.6
#
CODE="
#include <linux/scatterlist.h>
void conftest_sg_alloc_table_from_pages(void) {
sg_alloc_table_from_pages();
}"
compile_check_conftest "$CODE" "NV_SG_ALLOC_TABLE_FROM_PAGES_PRESENT" "" "functions"
;;
efi_enabled)
#
# Added in 2.6.12 as a variable
#
# Determine if the efi_enabled symbol is present (as a variable),
# or if the efi_enabled() function is present and how many
# arguments it takes.
#
# Converted from a variable to a function by commit 83e68189745a
# ("efi: Make 'efi_enabled' a function to query EFI facilities")
# in v3.8
#
echo "$CONFTEST_PREAMBLE
#if defined(NV_LINUX_EFI_H_PRESENT)
#include <linux/efi.h>
#endif
int conftest_efi_enabled(void) {
return efi_enabled(0);
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_EFI_ENABLED_PRESENT" | append_conftest "functions"
echo "#define NV_EFI_ENABLED_ARGUMENT_COUNT 1" | append_conftest "functions"
rm -f conftest$$.o
return
else
echo "#define NV_EFI_ENABLED_PRESENT" | append_conftest "symbols"
return
fi
;;
dom0_kernel_present)
# Add config parameter if running on DOM0.
if [ -n "$VGX_BUILD" ]; then
echo "#define NV_DOM0_KERNEL_PRESENT" | append_conftest "generic"
else
echo "#undef NV_DOM0_KERNEL_PRESENT" | append_conftest "generic"
fi
return
;;
nvidia_vgpu_kvm_build)
# Add config parameter if running on KVM host.
if [ -n "$VGX_KVM_BUILD" ]; then
echo "#define NV_VGPU_KVM_BUILD" | append_conftest "generic"
else
echo "#undef NV_VGPU_KVM_BUILD" | append_conftest "generic"
fi
return
;;
vfio_register_notifier)
#
# Check number of arguments required.
#
# New parameters added by commit 22195cbd3451 ("vfio:
# vfio_register_notifier: classify iommu notifier") in v4.10
#
echo "$CONFTEST_PREAMBLE
#include <linux/vfio.h>
int conftest_vfio_register_notifier(void) {
return vfio_register_notifier((struct device *) NULL, (struct notifier_block *) NULL);
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_VFIO_NOTIFIER_ARGUMENT_COUNT 2" | append_conftest "functions"
rm -f conftest$$.o
return
else
echo "#define NV_VFIO_NOTIFIER_ARGUMENT_COUNT 4" | append_conftest "functions"
return
fi
;;
vfio_info_add_capability_has_cap_type_id_arg)
#
# Check if vfio_info_add_capability() has cap_type_id parameter.
#
# Removed by commit dda01f787df9 ("vfio: Simplify capability
# helper") in v4.16 (2017-12-12)
#
CODE="
#include <linux/vfio.h>
int vfio_info_add_capability(struct vfio_info_cap *caps,
int cap_type_id,
void *cap_type) {
return 0;
}"
compile_check_conftest "$CODE" "NV_VFIO_INFO_ADD_CAPABILITY_HAS_CAP_TYPE_ID_ARGS" "" "types"
;;
vmbus_channel_has_ringbuffer_page)
#
# Check if ringbuffer_page field exist in vmbus_channel structure
#
# Changed in commit 52a42c2a90226dc61c99bbd0cb096deeb52c334b
# ("vmbus: keep pointer to ring buffer page") in v5.0 (2018-09-14)
#
CODE="
#include <linux/hyperv.h>
int conftest_vmbus_channel_has_ringbuffer_page(void) {
return offsetof(struct vmbus_channel, ringbuffer_page);
}"
compile_check_conftest "$CODE" "NV_VMBUS_CHANNEL_HAS_RING_BUFFER_PAGE" "" "types"
;;
nvidia_grid_build)
if [ -n "$GRID_BUILD" ]; then
echo "#define NV_GRID_BUILD" | append_conftest "generic"
else
echo "#undef NV_GRID_BUILD" | append_conftest "generic"
fi
return
;;
nvidia_grid_csp_build)
if [ -n "$GRID_BUILD_CSP" ]; then
echo "#define NV_GRID_BUILD_CSP $GRID_BUILD_CSP" | append_conftest "generic"
else
echo "#undef NV_GRID_BUILD_CSP" | append_conftest "generic"
fi
return
;;
vm_fault_has_address)
#
# Determine if the 'vm_fault' structure has an 'address', or a
# 'virtual_address' field. The .virtual_address field was
# effectively renamed to .address:
#
# 'address' added by commit 82b0f8c39a38 ("mm: join
# struct fault_env and vm_fault") in v4.10 (2016-12-14)
#
# 'virtual_address' removed by commit 1a29d85eb0f1 ("mm: use
# vmf->address instead of of vmf->virtual_address") in v4.10
# (2016-12-14)
#
CODE="
#include <linux/mm.h>
int conftest_vm_fault_has_address(void) {
return offsetof(struct vm_fault, address);
}"
compile_check_conftest "$CODE" "NV_VM_FAULT_HAS_ADDRESS" "" "types"
;;
kmem_cache_has_kobj_remove_work)
#
# Determine if the 'kmem_cache' structure has 'kobj_remove_work'.
#
# 'kobj_remove_work' was added by commit 3b7b314053d02 ("slub: make
# sysfs file removal asynchronous") in v4.12 (2017-06-23). This
# commit introduced a race between kmem_cache destroy and create
# which we need to workaround in our driver (see nvbug: 2543505).
# Also see comment for sysfs_slab_unlink conftest.
#
CODE="
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/slub_def.h>
int conftest_kmem_cache_has_kobj_remove_work(void) {
return offsetof(struct kmem_cache, kobj_remove_work);
}"
compile_check_conftest "$CODE" "NV_KMEM_CACHE_HAS_KOBJ_REMOVE_WORK" "" "types"
;;
mdev_uuid)
#
# Determine if mdev_uuid() function is present or not
#
# Added by commit 99e3123e3d72 ("vfio-mdev: Make mdev_device
# private and abstract interfaces") in v4.10
#
CODE="
#include <linux/pci.h>
#include <linux/mdev.h>
void conftest_mdev_uuid() {
mdev_uuid();
}"
compile_check_conftest "$CODE" "NV_MDEV_UUID_PRESENT" "" "functions"
#
# Determine if mdev_uuid() returns 'const guid_t *'.
#
# mdev_uuid() function prototype updated to return 'const guid_t *'
# by commit 278bca7f318e ("vfio-mdev: Switch to use new generic UUID
# API") in v5.1 (2019-01-10).
#
CODE="
#include <linux/pci.h>
#include <linux/mdev.h>
const guid_t *conftest_mdev_uuid_return_guid_ptr(struct mdev_device *mdev) {
return mdev_uuid(mdev);
}"
compile_check_conftest "$CODE" "NV_MDEV_UUID_RETURN_GUID_PTR" "" "types"
;;
mdev_dev)
#
# Determine if mdev_dev() function is present or not
#
# Added by commit 99e3123e3d72 ("vfio-mdev: Make mdev_device
# private and abstract interfaces") in v4.10
#
CODE="
#include <linux/pci.h>
#include <linux/mdev.h>
void conftest_mdev_dev() {
mdev_dev();
}"
compile_check_conftest "$CODE" "NV_MDEV_DEV_PRESENT" "" "functions"
;;
mdev_get_type_group_id)
#
# Determine if mdev_get_type_group_id() function is present or not
#
# Added by commit 15fcc44be0c7a ("vfio/mdev: Add
# mdev/mtype_get_type_group_id()") in v5.13
#
CODE="
#include <linux/pci.h>
#include <linux/mdev.h>
void conftest_mdev_get_type_group_id() {
mdev_get_type_group_id();
}"
compile_check_conftest "$CODE" "NV_MDEV_GET_TYPE_GROUP_ID_PRESENT" "" "functions"
;;
mdev_parent)
#
# Determine if the struct mdev_parent type is present.
#
# Added by commit 42930553a7c1 ("vfio-mdev: de-polute the
# namespace, rename parent_device & parent_ops") in v4.10
#
CODE="
#include <linux/pci.h>
#include <linux/mdev.h>
struct mdev_parent_ops conftest_mdev_parent;
"
compile_check_conftest "$CODE" "NV_MDEV_PARENT_OPS_STRUCT_PRESENT" "" "types"
;;
mdev_parent_dev)
#
# Determine if mdev_parent_dev() function is present or not
#
# Added by commit 9372e6feaafb ("vfio-mdev: Make mdev_parent
# private") in v4.10
#
CODE="
#include <linux/pci.h>
#include <linux/mdev.h>
void conftest_mdev_parent_dev() {
mdev_parent_dev();
}"
compile_check_conftest "$CODE" "NV_MDEV_PARENT_DEV_PRESENT" "" "functions"
;;
mdev_from_dev)
#
# Determine if mdev_from_dev() function is present or not.
#
# Added by commit 99e3123e3d72 ("vfio-mdev: Make mdev_device
# private and abstract interfaces") in v4.10 (2016-12-30)
#
CODE="
#include <linux/pci.h>
#include <linux/mdev.h>
void conftest_mdev_from_dev() {
mdev_from_dev();
}"
compile_check_conftest "$CODE" "NV_MDEV_FROM_DEV_PRESENT" "" "functions"
;;
mdev_set_iommu_device)
#
# Determine if mdev_set_iommu_device() function is present or not.
#
# Added by commit 8ac13175cbe9 ("vfio/mdev: Add iommu related member
# in mdev_device) in v5.1 (2019-04-12)
#
CODE="
#include <linux/pci.h>
#include <linux/mdev.h>
void conftest_mdev_set_iommu_device() {
mdev_set_iommu_device();
}"
compile_check_conftest "$CODE" "NV_MDEV_SET_IOMMU_DEVICE_PRESENT" "" "functions"
;;
pci_irq_vector_helpers)
#
# Determine if pci_alloc_irq_vectors(), pci_free_irq_vectors()
# functions are present or not.
#
# Added by commit aff171641d181ea573 (PCI: Provide sensible IRQ
# vector alloc/free routines) (2016-07-12)
#
CODE="
#include <linux/pci.h>
#include <linux/msi.h>
void conftest_pci_irq_vector_helpers() {
pci_alloc_irq_vectors();
pci_free_irq_vectors ();
}"
compile_check_conftest "$CODE" "NV_PCI_IRQ_VECTOR_HELPERS_PRESENT" "" "functions"
;;
vfio_device_gfx_plane_info)
#
# determine if the 'struct vfio_device_gfx_plane_info' type is present.
#
# Added by commit e20eaa2382e7 ("vfio: ABI for mdev display
# dma-buf operation") in v4.16 (2017-11-23)
#
CODE="
#include <linux/vfio.h>
struct vfio_device_gfx_plane_info info;"
compile_check_conftest "$CODE" "NV_VFIO_DEVICE_GFX_PLANE_INFO_PRESENT" "" "types"
;;
vfio_device_migration_info)
#
# determine if the 'struct vfio_device_migration_info' type is present.
#
# Proposed interface for vGPU Migration
# ("[PATCH v3 0/5] Add migration support for VFIO device ")
# https://lists.gnu.org/archive/html/qemu-devel/2019-02/msg05176.html
# Upstreamed commit a8a24f3f6e38 (vfio: UAPI for migration interface
# for device state) in v5.8 (2020-05-29)
#
CODE="
#include <linux/vfio.h>
struct vfio_device_migration_info info;"
compile_check_conftest "$CODE" "NV_VFIO_DEVICE_MIGRATION_INFO_PRESENT" "" "types"
;;
vfio_device_migration_has_start_pfn)
#
# Determine if the 'vfio_device_migration_info' structure has
# a 'start_pfn' field.
#
# This member was present in proposed interface for vGPU Migration
# ("[PATCH v3 0/5] Add migration support for VFIO device ")
# https://lists.gnu.org/archive/html/qemu-devel/2019-02/msg05176.html
# which is not present in upstreamed commit a8a24f3f6e38 (vfio: UAPI
# for migration interface for device state) in v5.8 (2020-05-29)
#
CODE="
#include <linux/vfio.h>
int conftest_vfio_device_migration_has_start_pfn(void) {
return offsetof(struct vfio_device_migration_info, start_pfn);
}"
compile_check_conftest "$CODE" "NV_VFIO_DEVICE_MIGRATION_HAS_START_PFN" "" "types"
;;
drm_available)
# Determine if the DRM subsystem is usable
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_DRM_DRV_H_PRESENT)
#include <drm/drm_drv.h>
#endif
#if !defined(CONFIG_DRM) && !defined(CONFIG_DRM_MODULE)
#error DRM not enabled
#endif
void conftest_drm_available(void) {
struct drm_driver drv;
/* 2013-10-02 1bb72532ac260a2d3982b40bdd4c936d779d0d16 */
(void)drm_dev_alloc;
/* 2013-10-02 c22f0ace1926da399d9a16dfaf09174c1b03594c */
(void)drm_dev_register;
/* 2013-10-02 c3a49737ef7db0bdd4fcf6cf0b7140a883e32b2a */
(void)drm_dev_unregister;
}"
compile_check_conftest "$CODE" "NV_DRM_AVAILABLE" "" "generic"
;;
drm_dev_unref)
#
# Determine if drm_dev_unref() is present.
# If it isn't, we use drm_dev_free() instead.
#
# drm_dev_free was added by commit 0dc8fe5985e0 ("drm: introduce
# drm_dev_free() to fix error paths") in v3.13 (2013-10-02)
#
# Renamed to drm_dev_unref by commit 099d1c290e2e
# ("drm: provide device-refcount") in v3.15 (2014-01-29)
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
void conftest_drm_dev_unref(void) {
drm_dev_unref();
}"
compile_check_conftest "$CODE" "NV_DRM_DEV_UNREF_PRESENT" "" "functions"
;;
pde_data)
#
# Determine if the pde_data() function is present.
#
# The commit c28198889c15 removed the function
# 'PDE_DATA()', and replaced it with 'pde_data()'
# ("proc: remove PDE_DATA() completely") in v5.17-rc1.
#
CODE="
#include <linux/proc_fs.h>
void conftest_pde_data(void) {
pde_data();
}"
compile_check_conftest "$CODE" "NV_PDE_DATA_LOWER_CASE_PRESENT" "" "functions"
;;
get_num_physpages)
#
# Determine if the get_num_physpages() function is
# present.
#
# Added by commit 7ee3d4e8cd56 ("mm: introduce helper function
# mem_init_print_info() to simplify mem_init()") in v3.11
#
CODE="
#include <linux/mm.h>
void conftest_get_num_physpages(void) {
get_num_physpages(NULL);
}"
compile_check_conftest "$CODE" "NV_GET_NUM_PHYSPAGES_PRESENT" "" "functions"
;;
proc_remove)
#
# Determine if the proc_remove() function is present.
#
# Added by commit a8ca16ea7b0a ("proc: Supply a function to
# remove a proc entry by PDE") in v3.10
#
CODE="
#include <linux/proc_fs.h>
void conftest_proc_remove(void) {
proc_remove();
}"
compile_check_conftest "$CODE" "NV_PROC_REMOVE_PRESENT" "" "functions"
;;
backing_dev_info)
#
# Determine if the 'address_space' structure has
# a 'backing_dev_info' field.
#
# Removed by commit b83ae6d42143 ("fs: remove
# mapping->backing_dev_info") in v4.0
#
CODE="
#include <linux/fs.h>
int conftest_backing_dev_info(void) {
return offsetof(struct address_space, backing_dev_info);
}"
compile_check_conftest "$CODE" "NV_ADDRESS_SPACE_HAS_BACKING_DEV_INFO" "" "types"
;;
address_space)
#
# Determine if the 'address_space' structure has
# a 'tree_lock' field of type rwlock_t.
#
# 'tree_lock' was changed to spinlock_t by commit 19fd6231279b
# ("mm: spinlock tree_lock") in v2.6.27
#
# It was removed altogether by commit b93b016313b3 ("page cache:
# use xa_lock") in v4.17
#
CODE="
#include <linux/fs.h>
int conftest_address_space(void) {
struct address_space as;
rwlock_init(&as.tree_lock);
return offsetof(struct address_space, tree_lock);
}"
compile_check_conftest "$CODE" "NV_ADDRESS_SPACE_HAS_RWLOCK_TREE_LOCK" "" "types"
;;
address_space_init_once)
#
# Determine if address_space_init_once is present.
#
# Added by commit 2aa15890f3c1 ("mm: prevent concurrent
# unmap_mapping_range() on the same inode") in v2.6.38
#
# If not present, it will be defined in uvm-linux.h.
#
CODE="
#include <linux/fs.h>
void conftest_address_space_init_once(void) {
address_space_init_once();
}"
compile_check_conftest "$CODE" "NV_ADDRESS_SPACE_INIT_ONCE_PRESENT" "" "functions"
;;
kuid_t)
#
# Determine if the 'kuid_t' type is present.
#
# Added by commit 7a4e7408c5ca ("userns: Add kuid_t and kgid_t
# and associated infrastructure in uidgid.h") in v3.5
#
CODE="
#include <linux/sched.h>
kuid_t conftest_kuid_t;
"
compile_check_conftest "$CODE" "NV_KUID_T_PRESENT" "" "types"
;;
pm_vt_switch_required)
#
# Determine if the pm_vt_switch_required() function is present.
#
# Added by commit f43f627d2f17 ("PM: make VT switching to the
# suspend console optional v3") in v3.10
#
CODE="
#include <linux/pm.h>
void conftest_pm_vt_switch_required(void) {
pm_vt_switch_required();
}"
compile_check_conftest "$CODE" "NV_PM_VT_SWITCH_REQUIRED_PRESENT" "" "functions"
;;
xen_ioemu_inject_msi)
# Determine if the xen_ioemu_inject_msi() function is present.
CODE="
#if defined(NV_XEN_IOEMU_H_PRESENT)
#include <linux/kernel.h>
#include <xen/interface/xen.h>
#include <xen/hvm.h>
#include <xen/ioemu.h>
#endif
void conftest_xen_ioemu_inject_msi(void) {
xen_ioemu_inject_msi();
}"
compile_check_conftest "$CODE" "NV_XEN_IOEMU_INJECT_MSI" "" "functions"
;;
phys_to_dma)
#
# Determine if the phys_to_dma function is present.
# It does not exist on all architectures.
#
CODE="
#include <linux/dma-mapping.h>
void conftest_phys_to_dma(void) {
phys_to_dma();
}"
compile_check_conftest "$CODE" "NV_PHYS_TO_DMA_PRESENT" "" "functions"
;;
dma_attr_macros)
#
# Determine if the NV_DMA_ATTR_SKIP_CPU_SYNC_PRESENT macro present.
# It does not exist on all architectures.
#
CODE="
#include <linux/dma-mapping.h>
void conftest_dma_attr_macros(void) {
int ret;
ret = DMA_ATTR_SKIP_CPU_SYNC();
}"
compile_check_conftest "$CODE" "NV_DMA_ATTR_SKIP_CPU_SYNC_PRESENT" "" "functions"
;;
dma_map_page_attrs)
#
# Determine if the dma_map_page_attrs function is present.
# It does not exist on all architectures.
#
CODE="
#include <linux/dma-mapping.h>
void conftest_dma_map_page_attrs(void) {
dma_map_page_attrs();
}"
compile_check_conftest "$CODE" "NV_DMA_MAP_PAGE_ATTRS_PRESENT" "" "functions"
;;
dma_ops)
#
# Determine if the 'dma_ops' structure is present.
# It does not exist on all architectures.
#
CODE="
#include <linux/dma-mapping.h>
void conftest_dma_ops(void) {
(void)dma_ops;
}"
compile_check_conftest "$CODE" "NV_DMA_OPS_PRESENT" "" "symbols"
;;
swiotlb_dma_ops)
#
# Determine if the 'swiotlb_dma_ops' structure is present.
# It does not exist on all architectures.
#
CODE="
#include <linux/dma-mapping.h>
void conftest_dma_ops(void) {
(void)swiotlb_dma_ops;
}"
compile_check_conftest "$CODE" "NV_SWIOTLB_DMA_OPS_PRESENT" "" "symbols"
;;
get_dma_ops)
#
# Determine if the get_dma_ops() function is present.
#
# The structure was made available to all architectures by commit
# e1c7e324539a ("dma-mapping: always provide the dma_map_ops
# based implementation") in v4.5
#
# Commit 0a0f0d8be76d ("dma-mapping: split <linux/dma-mapping.h>")
# in v5.10-rc1 (2020-09-22), moved get_dma_ops() function
# prototype from <linux/dma-mapping.h> to <linux/dma-map-ops.h>.
#
CODE="
#if defined(NV_LINUX_DMA_MAP_OPS_H_PRESENT)
#include <linux/dma-map-ops.h>
#else
#include <linux/dma-mapping.h>
#endif
void conftest_get_dma_ops(void) {
get_dma_ops();
}"
compile_check_conftest "$CODE" "NV_GET_DMA_OPS_PRESENT" "" "functions"
;;
noncoherent_swiotlb_dma_ops)
#
# Determine if the 'noncoherent_swiotlb_dma_ops' symbol is present.
# This API only exists on ARM64.
#
# Added by commit 7363590d2c46 ("arm64: Implement coherent DMA API
# based on swiotlb") in v3.15
#
# Removed by commit 9d3bfbb4df58 ("arm64: Combine coherent and
# non-coherent swiotlb dma_ops") in v4.0
#
CODE="
#include <linux/dma-mapping.h>
void conftest_noncoherent_swiotlb_dma_ops(void) {
(void)noncoherent_swiotlb_dma_ops;
}"
compile_check_conftest "$CODE" "NV_NONCOHERENT_SWIOTLB_DMA_OPS_PRESENT" "" "symbols"
;;
dma_map_resource)
#
# Determine if the dma_map_resource() function is present.
#
# Added by commit 6f3d87968f9c ("dma-mapping: add
# dma_{map,unmap}_resource") in v4.9 (2016-08-10)
#
CODE="
#include <linux/dma-mapping.h>
void conftest_dma_map_resource(void) {
dma_map_resource();
}"
compile_check_conftest "$CODE" "NV_DMA_MAP_RESOURCE_PRESENT" "" "functions"
;;
write_cr4)
#
# Determine if the write_cr4() function is present.
#
CODE="
#include <asm/processor.h>
void conftest_write_cr4(void) {
write_cr4();
}"
compile_check_conftest "$CODE" "NV_WRITE_CR4_PRESENT" "" "functions"
;;
nvhost_dma_fence_unpack)
#
# Determine if the nvhost_dma_fence_unpack function is present.
# This is only present in NVIDIA Tegra downstream kernels.
#
CODE="
#if defined(NV_LINUX_NVHOST_H_PRESENT)
#include <linux/nvhost.h>
#endif
void conftest_nvhost_dma_fence_unpack(void) {
nvhost_dma_fence_unpack();
}"
compile_check_conftest "$CODE" "NV_NVHOST_DMA_FENCE_UNPACK_PRESENT" "" "functions"
;;
of_get_property)
#
# Determine if the of_get_property function is present.
#
# Support for kernels without CONFIG_OF defined added by commit
# 89272b8c0d42 ("dt: add empty of_get_property for non-dt") in v3.1
#
# Test if linux/of.h header file inclusion is successful or not and
# define/undefine NV_LINUX_OF_H_USABLE depending upon status of inclusion
#
echo "$CONFTEST_PREAMBLE
#include <linux/of.h>
" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "#define NV_LINUX_OF_H_USABLE" | append_conftest "generic"
CODE="
#include <linux/of.h>
void conftest_of_get_property() {
of_get_property();
}"
compile_check_conftest "$CODE" "NV_OF_GET_PROPERTY_PRESENT" "" "functions"
else
echo "#undef NV_LINUX_OF_H_USABLE" | append_conftest "generic"
echo "#undef NV_OF_GET_PROPERTY_PRESENT" | append_conftest "functions"
fi
;;
of_find_node_by_phandle)
#
# Determine if the of_find_node_by_phandle function is present.
#
# Support for kernels without CONFIG_OF defined added by commit
# ce16b9d23561 ("of: define of_find_node_by_phandle for
# !CONFIG_OF") in v4.2
#
# Test if linux/of.h header file inclusion is successful or not and
# define/undefine NV_LINUX_OF_H_USABLE depending upon status of inclusion.
#
echo "$CONFTEST_PREAMBLE
#include <linux/of.h>
" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "#define NV_LINUX_OF_H_USABLE" | append_conftest "generic"
CODE="
#include <linux/of.h>
void conftest_of_find_node_by_phandle() {
of_find_node_by_phandle();
}"
compile_check_conftest "$CODE" "NV_OF_FIND_NODE_BY_PHANDLE_PRESENT" "" "functions"
else
echo "#undef NV_LINUX_OF_H_USABLE" | append_conftest "generic"
echo "#undef NV_OF_FIND_NODE_BY_PHANDLE_PRESENT" | append_conftest "functions"
fi
;;
of_node_to_nid)
#
# Determine if of_node_to_nid is present
#
# Dummy implementation added by commit 559e2b7ee7a1
# ("of: Provide default of_node_to_nid() implementation.") in v2.6.36
#
# Real implementation added by commit 298535c00a2c
# ("of, numa: Add NUMA of binding implementation.") in v4.7
#
# Test if linux/of.h header file inclusion is successful or not and
# define/undefine NV_LINUX_OF_H_USABLE depending upon status of inclusion.
#
echo "$CONFTEST_PREAMBLE
#include <linux/of.h>
" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "#define NV_LINUX_OF_H_USABLE" | append_conftest "generic"
CODE="
#include <linux/version.h>
#include <linux/utsname.h>
#include <linux/of.h>
void conftest_of_node_to_nid() {
of_node_to_nid();
}"
compile_check_conftest "$CODE" "NV_OF_NODE_TO_NID_PRESENT" "" "functions"
else
echo "#undef NV_LINUX_OF_H_USABLE" | append_conftest "generic"
echo "#undef NV_OF_NODE_TO_NID_PRESENT" | append_conftest "functions"
fi
;;
pnv_pci_get_npu_dev)
#
# Determine if the pnv_pci_get_npu_dev function is present.
#
# Added by commit 5d2aa710e697 ("powerpc/powernv: Add support
# for Nvlink NPUs") in v4.5
#
CODE="
#include <linux/pci.h>
void conftest_pnv_pci_get_npu_dev() {
pnv_pci_get_npu_dev();
}"
compile_check_conftest "$CODE" "NV_PNV_PCI_GET_NPU_DEV_PRESENT" "" "functions"
;;
kernel_write)
#
# Determine if the function kernel_write() is present.
#
# First exported by commit 7bb307e894d5 ("export kernel_write(),
# convert open-coded instances") in v3.9
#
echo "$CONFTEST_PREAMBLE
#include <linux/fs.h>
void conftest_kernel_write(void) {
kernel_write();
}" > conftest$$.c;
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#undef NV_KERNEL_WRITE_PRESENT" | append_conftest "function"
rm -f conftest$$.o
else
echo "#define NV_KERNEL_WRITE_PRESENT" | append_conftest "function"
#
# Determine the pos argument type, which was changed by
# commit e13ec939e96b1 (fs: fix kernel_write prototype) on
# 9/1/2017.
#
echo "$CONFTEST_PREAMBLE
#include <linux/fs.h>
ssize_t kernel_write(struct file *file, const void *buf,
size_t count, loff_t *pos)
{
return 0;
}" > conftest$$.c;
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_KERNEL_WRITE_HAS_POINTER_POS_ARG" | append_conftest "function"
rm -f conftest$$.o
else
echo "#undef NV_KERNEL_WRITE_HAS_POINTER_POS_ARG" | append_conftest "function"
fi
fi
;;
kernel_read_has_pointer_pos_arg)
#
# Determine the pos argument type, which was changed by
# commit bdd1d2d3d251c (fs: fix kernel_read prototype) on
# 9/1/2017.
#
echo "$CONFTEST_PREAMBLE
#include <linux/fs.h>
ssize_t kernel_read(struct file *file, void *buf, size_t count,
loff_t *pos)
{
return 0;
}" > conftest$$.c;
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_KERNEL_READ_HAS_POINTER_POS_ARG" | append_conftest "function"
rm -f conftest$$.o
else
echo "#undef NV_KERNEL_READ_HAS_POINTER_POS_ARG" | append_conftest "function"
fi
;;
vm_insert_pfn_prot)
#
# Determine if vm_insert_pfn_prot function is present
#
# Added by commit 1745cbc5d0de ("mm: Add vm_insert_pfn_prot()") in
# v3.16.59
#
# Removed by commit f5e6d1d5f8f3 ("mm: introduce
# vmf_insert_pfn_prot()") in v4.20.
#
CODE="
#include <linux/mm.h>
void conftest_vm_insert_pfn_prot() {
vm_insert_pfn_prot();
}"
compile_check_conftest "$CODE" "NV_VM_INSERT_PFN_PROT_PRESENT" "" "functions"
;;
vmf_insert_pfn_prot)
#
# Determine if vmf_insert_pfn_prot function is present
#
# Added by commit f5e6d1d5f8f3 ("mm: introduce
# vmf_insert_pfn_prot()") in v4.20.
#
CODE="
#include <linux/mm.h>
void conftest_vmf_insert_pfn_prot() {
vmf_insert_pfn_prot();
}"
compile_check_conftest "$CODE" "NV_VMF_INSERT_PFN_PROT_PRESENT" "" "functions"
;;
drm_atomic_available)
#
# Determine if the DRM atomic modesetting subsystem is usable
#
# Added by commit 036ef5733ba4
# ("drm/atomic: Allow drivers to subclass drm_atomic_state, v3") in
# v4.2 (2018-05-18).
#
# Make conftest more robust by adding test for
# drm_atomic_set_mode_prop_for_crtc(), this function added by
# commit 955f3c334f0f ("drm/atomic: Add MODE_ID property") in v4.2
# (2015-05-25). If the DRM atomic modesetting subsystem is
# back ported to Linux kernel older than v4.2, then commit
# 955f3c334f0f must be back ported in order to get NVIDIA-DRM KMS
# support.
# Commit 72fdb40c1a4b ("drm: extract drm_atomic_uapi.c") in v4.20
# (2018-09-05), moved drm_atomic_set_mode_prop_for_crtc() function
# prototype from drm/drm_atomic.h to drm/drm_atomic_uapi.h.
#
echo "$CONFTEST_PREAMBLE
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#include <drm/drm_atomic.h>
#if !defined(CONFIG_DRM) && !defined(CONFIG_DRM_MODULE)
#error DRM not enabled
#endif
void conftest_drm_atomic_modeset_available(void) {
size_t a;
a = offsetof(struct drm_mode_config_funcs, atomic_state_alloc);
}" > conftest$$.c;
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "$CONFTEST_PREAMBLE
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#include <drm/drm_atomic.h>
#if defined(NV_DRM_DRM_ATOMIC_UAPI_H_PRESENT)
#include <drm/drm_atomic_uapi.h>
#endif
void conftest_drm_atomic_set_mode_prop_for_crtc(void) {
drm_atomic_set_mode_prop_for_crtc();
}" > conftest$$.c;
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "#undef NV_DRM_ATOMIC_MODESET_AVAILABLE" | append_conftest "generic"
else
echo "#define NV_DRM_ATOMIC_MODESET_AVAILABLE" | append_conftest "generic"
fi
else
echo "#undef NV_DRM_ATOMIC_MODESET_AVAILABLE" | append_conftest "generic"
fi
;;
drm_bus_present)
#
# Determine if the 'struct drm_bus' type is present.
#
# Added by commit 8410ea3b95d1 ("drm: rework PCI/platform driver
# interface.") in v2.6.39 (2010-12-15)
#
# Removed by commit c5786fe5f1c5 ("drm: Goody bye, drm_bus!")
# in v3.18 (2014-08-29)
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
void conftest_drm_bus_present(void) {
struct drm_bus bus;
}"
compile_check_conftest "$CODE" "NV_DRM_BUS_PRESENT" "" "types"
;;
drm_bus_has_bus_type)
#
# Determine if the 'drm_bus' structure has a 'bus_type' field.
#
# Added by commit 8410ea3b95d1 ("drm: rework PCI/platform driver
# interface.") in v2.6.39 (2010-12-15)
#
# Removed by commit 42b21049fc26 ("drm: kill drm_bus->bus_type")
# in v3.16 (2013-11-03)
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
int conftest_drm_bus_has_bus_type(void) {
return offsetof(struct drm_bus, bus_type);
}"
compile_check_conftest "$CODE" "NV_DRM_BUS_HAS_BUS_TYPE" "" "types"
;;
drm_bus_has_get_irq)
#
# Determine if the 'drm_bus' structure has a 'get_irq' field.
#
# Added by commit 8410ea3b95d1 ("drm: rework PCI/platform
# driver interface.") in v2.6.39 (2010-12-15)
#
# Removed by commit b2a21aa25a39 ("drm: remove bus->get_irq
# implementations") in v3.16 (2013-11-03)
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
int conftest_drm_bus_has_get_irq(void) {
return offsetof(struct drm_bus, get_irq);
}"
compile_check_conftest "$CODE" "NV_DRM_BUS_HAS_GET_IRQ" "" "types"
;;
drm_bus_has_get_name)
#
# Determine if the 'drm_bus' structure has a 'get_name' field.
#
# Added by commit 8410ea3b95d1 ("drm: rework PCI/platform driver
# interface.") in v2.6.39 (2010-12-15)
#
# removed by commit 9de1b51f1fae ("drm: remove drm_bus->get_name")
# in v3.16 (2013-11-03)
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
int conftest_drm_bus_has_get_name(void) {
return offsetof(struct drm_bus, get_name);
}"
compile_check_conftest "$CODE" "NV_DRM_BUS_HAS_GET_NAME" "" "types"
;;
drm_driver_has_device_list)
#
# Determine if the 'drm_driver' structure has a 'device_list' field.
#
# Renamed from device_list to legacy_device_list by commit
# b3f2333de8e8 ("drm: restrict the device list for shadow
# attached drivers") in v3.14 (2013-12-11)
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_DRM_DRV_H_PRESENT)
#include <drm/drm_drv.h>
#endif
int conftest_drm_driver_has_device_list(void) {
return offsetof(struct drm_driver, device_list);
}"
compile_check_conftest "$CODE" "NV_DRM_DRIVER_HAS_DEVICE_LIST" "" "types"
;;
drm_driver_has_legacy_dev_list)
#
# Determine if the 'drm_driver' structure has a 'legacy_dev_list' field.
#
# Renamed from device_list to legacy_device_list by commit
# b3f2333de8e8 ("drm: restrict the device list for shadow
# attached drivers") in v3.14 (2013-12-11)
#
# The commit 57bb1ee60340 ("drm: Compile out legacy chunks from
# struct drm_device") compiles out the legacy chunks like
# drm_driver::legacy_dev_list.
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_DRM_DRV_H_PRESENT)
#include <drm/drm_drv.h>
#endif
int conftest_drm_driver_has_legacy_dev_list(void) {
return offsetof(struct drm_driver, legacy_dev_list);
}"
compile_check_conftest "$CODE" "NV_DRM_DRIVER_HAS_LEGACY_DEV_LIST" "" "types"
;;
jiffies_to_timespec)
#
# Determine if jiffies_to_timespec() is present
#
# removed by commit 751addac78b6
# ("y2038: remove obsolete jiffies conversion functions")
# in v5.6-rc1 (2019-12-13).
CODE="
#include <linux/jiffies.h>
void conftest_jiffies_to_timespec(void){
jiffies_to_timespec();
}"
compile_check_conftest "$CODE" "NV_JIFFIES_TO_TIMESPEC_PRESENT" "" "functions"
;;
drm_init_function_args)
#
# Determine if these functions:
# drm_universal_plane_init()
# drm_crtc_init_with_planes()
# drm_encoder_init()
# have a 'name' argument, which was added by these commits:
# drm_universal_plane_init: 2015-12-09 b0b3b7951114315d65398c27648705ca1c322faa
# drm_crtc_init_with_planes: 2015-12-09 f98828769c8838f526703ef180b3088a714af2f9
# drm_encoder_init: 2015-12-09 13a3d91f17a5f7ed2acd275d18b6acfdb131fb15
#
# Additionally determine whether drm_universal_plane_init() has a
# 'format_modifiers' argument, which was added by:
# 2017-07-23 e6fc3b68558e4c6d8d160b5daf2511b99afa8814
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_DRM_CRTC_H_PRESENT)
#include <drm/drm_crtc.h>
#endif
int conftest_drm_crtc_init_with_planes_has_name_arg(void) {
return
drm_crtc_init_with_planes(
NULL, /* struct drm_device *dev */
NULL, /* struct drm_crtc *crtc */
NULL, /* struct drm_plane *primary */
NULL, /* struct drm_plane *cursor */
NULL, /* const struct drm_crtc_funcs *funcs */
NULL); /* const char *name */
}"
compile_check_conftest "$CODE" "NV_DRM_CRTC_INIT_WITH_PLANES_HAS_NAME_ARG" "" "types"
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_DRM_ENCODER_H_PRESENT)
#include <drm/drm_encoder.h>
#endif
int conftest_drm_encoder_init_has_name_arg(void) {
return
drm_encoder_init(
NULL, /* struct drm_device *dev */
NULL, /* struct drm_encoder *encoder */
NULL, /* const struct drm_encoder_funcs *funcs */
DRM_MODE_ENCODER_NONE, /* int encoder_type */
NULL); /* const char *name */
}"
compile_check_conftest "$CODE" "NV_DRM_ENCODER_INIT_HAS_NAME_ARG" "" "types"
echo "$CONFTEST_PREAMBLE
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_DRM_PLANE_H_PRESENT)
#include <drm/drm_plane.h>
#endif
int conftest_drm_universal_plane_init_has_format_modifiers_arg(void) {
return
drm_universal_plane_init(
NULL, /* struct drm_device *dev */
NULL, /* struct drm_plane *plane */
0, /* unsigned long possible_crtcs */
NULL, /* const struct drm_plane_funcs *funcs */
NULL, /* const uint32_t *formats */
0, /* unsigned int format_count */
NULL, /* const uint64_t *format_modifiers */
DRM_PLANE_TYPE_PRIMARY,
NULL); /* const char *name */
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "#define NV_DRM_UNIVERSAL_PLANE_INIT_HAS_FORMAT_MODIFIERS_ARG" | append_conftest "types"
echo "#define NV_DRM_UNIVERSAL_PLANE_INIT_HAS_NAME_ARG" | append_conftest "types"
else
echo "#undef NV_DRM_UNIVERSAL_PLANE_INIT_HAS_FORMAT_MODIFIERS_ARG" | append_conftest "types"
echo "$CONFTEST_PREAMBLE
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_DRM_PLANE_H_PRESENT)
#include <drm/drm_plane.h>
#endif
int conftest_drm_universal_plane_init_has_name_arg(void) {
return
drm_universal_plane_init(
NULL, /* struct drm_device *dev */
NULL, /* struct drm_plane *plane */
0, /* unsigned long possible_crtcs */
NULL, /* const struct drm_plane_funcs *funcs */
NULL, /* const uint32_t *formats */
0, /* unsigned int format_count */
DRM_PLANE_TYPE_PRIMARY,
NULL); /* const char *name */
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "#define NV_DRM_UNIVERSAL_PLANE_INIT_HAS_NAME_ARG" | append_conftest "types"
else
echo "#undef NV_DRM_UNIVERSAL_PLANE_INIT_HAS_NAME_ARG" | append_conftest "types"
fi
fi
;;
vzalloc)
#
# Determine if the vzalloc function is present
#
# Added by commit e1ca7788dec6 ("mm: add vzalloc() and
# vzalloc_node() helpers") in v2.6.37 (2010-10-26)
#
CODE="
#include <linux/vmalloc.h>
void conftest_vzalloc() {
vzalloc();
}"
compile_check_conftest "$CODE" "NV_VZALLOC_PRESENT" "" "functions"
;;
drm_driver_has_set_busid)
#
# Determine if the drm_driver structure has a 'set_busid' callback
# field.
#
# Added by commit 915b4d11b8b9 ("drm: add driver->set_busid()
# callback") in v3.18 (2014-08-29)
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
int conftest_drm_driver_has_set_busid(void) {
return offsetof(struct drm_driver, set_busid);
}"
compile_check_conftest "$CODE" "NV_DRM_DRIVER_HAS_SET_BUSID" "" "types"
;;
drm_driver_has_gem_prime_res_obj)
#
# Determine if the drm_driver structure has a 'gem_prime_res_obj'
# callback field.
#
# Added by commit 3aac4502fd3f ("dma-buf: use reservation
# objects") in v3.17 (2014-07-01).
#
# Removed by commit 51c98747113e (drm/prime: Ditch
# gem_prime_res_obj hook) in v5.4.
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
int conftest_drm_driver_has_gem_prime_res_obj(void) {
return offsetof(struct drm_driver, gem_prime_res_obj);
}"
compile_check_conftest "$CODE" "NV_DRM_DRIVER_HAS_GEM_PRIME_RES_OBJ" "" "types"
;;
drm_crtc_state_has_connectors_changed)
#
# Determine if the crtc_state has a 'connectors_changed' field.
#
# Added by commit fc596660dd4e ("drm/atomic: add
# connectors_changed to separate it from mode_changed, v2")
# in v4.3 (2015-07-21)
#
CODE="
#include <drm/drm_crtc.h>
void conftest_drm_crtc_state_has_connectors_changed(void) {
struct drm_crtc_state foo;
(void)foo.connectors_changed;
}"
compile_check_conftest "$CODE" "NV_DRM_CRTC_STATE_HAS_CONNECTORS_CHANGED" "" "types"
;;
drm_reinit_primary_mode_group)
#
# Determine if the function drm_reinit_primary_mode_group() is
# present.
#
# Added by commit 2390cd11bfbe ("drm/crtc: add interface to
# reinitialise the legacy mode group") in v3.17 (2014-06-05)
#
# Removed by commit 3fdefa399e46 ("drm: gc now dead
# mode_group code") in v4.3 (2015-07-09)
#
CODE="
#if defined(NV_DRM_DRM_CRTC_H_PRESENT)
#include <drm/drm_crtc.h>
#endif
void conftest_drm_reinit_primary_mode_group(void) {
drm_reinit_primary_mode_group();
}"
compile_check_conftest "$CODE" "NV_DRM_REINIT_PRIMARY_MODE_GROUP_PRESENT" "" "functions"
;;
wait_on_bit_lock_argument_count)
#
# Determine how many arguments wait_on_bit_lock takes.
#
# Changed by commit 743162013d40 ("sched: Remove proliferation
# of wait_on_bit() action functions") in v3.17 (2014-07-07)
#
echo "$CONFTEST_PREAMBLE
#include <linux/wait.h>
void conftest_wait_on_bit_lock(void) {
wait_on_bit_lock(NULL, 0, 0);
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "#define NV_WAIT_ON_BIT_LOCK_ARGUMENT_COUNT 3" | append_conftest "functions"
return
fi
echo "$CONFTEST_PREAMBLE
#include <linux/wait.h>
void conftest_wait_on_bit_lock(void) {
wait_on_bit_lock(NULL, 0, NULL, 0);
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "#define NV_WAIT_ON_BIT_LOCK_ARGUMENT_COUNT 4" | append_conftest "functions"
return
fi
echo "#error wait_on_bit_lock() conftest failed!" | append_conftest "functions"
;;
bitmap_clear)
#
# Determine if the bitmap_clear function is present
#
# Added by commit c1a2a962a2ad ("bitmap: introduce bitmap_set,
# bitmap_clear, bitmap_find_next_zero_area") in v2.6.33
# (2009-12-15)
#
CODE="
#include <linux/bitmap.h>
void conftest_bitmap_clear() {
bitmap_clear();
}"
compile_check_conftest "$CODE" "NV_BITMAP_CLEAR_PRESENT" "" "functions"
;;
pci_stop_and_remove_bus_device)
#
# Determine if the pci_stop_and_remove_bus_device() function is present.
#
# Added by commit 210647af897a ("PCI: Rename pci_remove_bus_device
# to pci_stop_and_remove_bus_device") in v3.4 (2012-02-25)
#
CODE="
#include <linux/types.h>
#include <linux/pci.h>
void conftest_pci_stop_and_remove_bus_device() {
pci_stop_and_remove_bus_device();
}"
compile_check_conftest "$CODE" "NV_PCI_STOP_AND_REMOVE_BUS_DEVICE_PRESENT" "" "functions"
;;
pci_remove_bus_device)
#
# Determine if the pci_remove_bus_device() function is present.
# Added before Linux-2.6.12-rc2 2005-04-16
# Because we support builds on non-PCI platforms, we still need
# to check for this function's presence.
#
CODE="
#include <linux/types.h>
#include <linux/pci.h>
void conftest_pci_remove_bus_device() {
pci_remove_bus_device();
}"
compile_check_conftest "$CODE" "NV_PCI_REMOVE_BUS_DEVICE_PRESENT" "" "functions"
;;
drm_helper_mode_fill_fb_struct | drm_helper_mode_fill_fb_struct_has_const_mode_cmd_arg)
#
# Determine if the drm_helper_mode_fill_fb_struct function takes
# 'dev' argument.
#
# The drm_helper_mode_fill_fb_struct() has been updated to
# take 'dev' parameter by commit a3f913ca9892 ("drm: Pass 'dev'
# to drm_helper_mode_fill_fb_struct()") in v4.11 (2016-12-14)
#
echo "$CONFTEST_PREAMBLE
#include <drm/drm_crtc_helper.h>
void drm_helper_mode_fill_fb_struct(struct drm_device *dev,
struct drm_framebuffer *fb,
const struct drm_mode_fb_cmd2 *mode_cmd)
{
return;
}" > conftest$$.c;
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_DRM_HELPER_MODE_FILL_FB_STRUCT_HAS_DEV_ARG" | append_conftest "function"
echo "#define NV_DRM_HELPER_MODE_FILL_FB_STRUCT_HAS_CONST_MODE_CMD_ARG" | append_conftest "function"
rm -f conftest$$.o
else
echo "#undef NV_DRM_HELPER_MODE_FILL_FB_STRUCT_HAS_DEV_ARG" | append_conftest "function"
#
# Determine if the drm_mode_fb_cmd2 pointer argument is const in
# drm_mode_config_funcs::fb_create and drm_helper_mode_fill_fb_struct().
#
# The drm_mode_fb_cmd2 pointer through this call chain was made
# const by commit 1eb83451ba55 ("drm: Pass the user drm_mode_fb_cmd2
# as const to .fb_create()") in v4.5 (2015-11-11)
#
echo "$CONFTEST_PREAMBLE
#include <drm/drm_crtc_helper.h>
void drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb,
const struct drm_mode_fb_cmd2 *mode_cmd)
{
return;
}" > conftest$$.c;
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_DRM_HELPER_MODE_FILL_FB_STRUCT_HAS_CONST_MODE_CMD_ARG" | append_conftest "function"
rm -f conftest$$.o
else
echo "#undef NV_DRM_HELPER_MODE_FILL_FB_STRUCT_HAS_CONST_MODE_CMD_ARG" | append_conftest "function"
fi
fi
;;
mm_context_t)
#
# Determine if the 'mm_context_t' data type is present
# and if it has an 'id' member.
# It does not exist on all architectures.
#
echo "$CONFTEST_PREAMBLE
#include <linux/mm.h>
int conftest_mm_context_t(void) {
return offsetof(mm_context_t, id);
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_MM_CONTEXT_T_HAS_ID" | append_conftest "types"
rm -f conftest$$.o
return
else
echo "#undef NV_MM_CONTEXT_T_HAS_ID" | append_conftest "types"
return
fi
;;
pci_dev_has_ats_enabled)
#
# Determine if the 'pci_dev' data type has a 'ats_enabled' member.
#
# Added by commit d544d75ac96aa ("PCI: Embed ATS info directly
# into struct pci_dev") in v4.3-rc1 (2015-08-14)
#
CODE="
#include <linux/pci.h>
int conftest_pci_dev_ats_enabled_t(void) {
return ((struct pci_dev *)0)->ats_enabled;
}"
compile_check_conftest "$CODE" "NV_PCI_DEV_HAS_ATS_ENABLED" "" "types"
;;
mt_device_gre)
#
# Determine if MT_DEVICE_GRE flag is present.
#
# MT_DEVICE_GRE flag is removed by commit 58cc6b72a21274
# ("arm64: mm: Remove unused support for Device-GRE memory type") in v5.14-rc1
# (2021-06-01).
#
CODE="
#include <asm/memory.h>
unsigned int conftest_mt_device_gre(void) {
return MT_DEVICE_GRE;
}"
compile_check_conftest "$CODE" "NV_MT_DEVICE_GRE_PRESENT" "" "types"
;;
get_user_pages)
#
# Conftest for get_user_pages()
#
# Use long type for get_user_pages and unsigned long for nr_pages
# by commit 28a35716d317 ("mm: use long type for page counts
# in mm_populate() and get_user_pages()") in v3.9 (2013-02-22)
#
# Removed struct task_struct *tsk & struct mm_struct *mm from
# get_user_pages by commit cde70140fed8 ("mm/gup: Overload
# get_user_pages() functions") in v4.6 (2016-02-12)
#
# Replaced get_user_pages6 with get_user_pages by commit
# c12d2da56d0e ("mm/gup: Remove the macro overload API migration
# helpers from the get_user*() APIs") in v4.6 (2016-04-04)
#
# Replaced write and force parameters with gup_flags by
# commit 768ae309a961 ("mm: replace get_user_pages() write/force
# parameters with gup_flags") in v4.9 (2016-10-13)
#
# linux-4.4.168 cherry-picked commit 768ae309a961 without
# c12d2da56d0e which is covered in Conftest #3.
#
# Conftest #1: Check if get_user_pages accepts 6 arguments.
# Return if true.
# Fall through to conftest #2 on failure.
#
echo "$CONFTEST_PREAMBLE
#include <linux/mm.h>
long get_user_pages(unsigned long start,
unsigned long nr_pages,
int write,
int force,
struct page **pages,
struct vm_area_struct **vmas) {
return 0;
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_GET_USER_PAGES_HAS_WRITE_AND_FORCE_ARGS" | append_conftest "functions"
echo "#undef NV_GET_USER_PAGES_HAS_TASK_STRUCT" | append_conftest "functions"
rm -f conftest$$.o
return
fi
# Conftest #2: Check if get_user_pages has gup_flags instead of
# write and force parameters. And that gup doesn't accept a
# task_struct and mm_struct as its first arguments.
# Return if available.
# Fall through to conftest #3 on failure.
echo "$CONFTEST_PREAMBLE
#include <linux/mm.h>
long get_user_pages(unsigned long start,
unsigned long nr_pages,
unsigned int gup_flags,
struct page **pages,
struct vm_area_struct **vmas) {
return 0;
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#undef NV_GET_USER_PAGES_HAS_WRITE_AND_FORCE_ARGS" | append_conftest "functions"
echo "#undef NV_GET_USER_PAGES_HAS_TASK_STRUCT" | append_conftest "functions"
rm -f conftest$$.o
return
fi
# Conftest #3: Check if get_user_pages has gup_flags instead of
# write and force parameters AND that gup has task_struct and
# mm_struct as its first arguments.
# Return if available.
# Fall through to default case if absent.
echo "$CONFTEST_PREAMBLE
#include <linux/mm.h>
long get_user_pages(struct task_struct *tsk,
struct mm_struct *mm,
unsigned long start,
unsigned long nr_pages,
unsigned int gup_flags,
struct page **pages,
struct vm_area_struct **vmas) {
return 0;
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#undef NV_GET_USER_PAGES_HAS_WRITE_AND_FORCE_ARGS" | append_conftest "functions"
echo "#define NV_GET_USER_PAGES_HAS_TASK_STRUCT" | append_conftest "functions"
rm -f conftest$$.o
return
fi
echo "#define NV_GET_USER_PAGES_HAS_WRITE_AND_FORCE_ARGS" | append_conftest "functions"
echo "#define NV_GET_USER_PAGES_HAS_TASK_STRUCT" | append_conftest "functions"
return
;;
get_user_pages_remote)
#
# Determine if the function get_user_pages_remote() is
# present and has write/force/locked/tsk parameters.
#
# get_user_pages_remote() was added by commit 1e9877902dc7
# ("mm/gup: Introduce get_user_pages_remote()") in v4.6 (2016-02-12)
#
# get_user_pages[_remote]() write/force parameters
# replaced with gup_flags by commits 768ae309a961 ("mm: replace
# get_user_pages() write/force parameters with gup_flags") and
# commit 9beae1ea8930 ("mm: replace get_user_pages_remote()
# write/force parameters with gup_flags") in v4.9 (2016-10-13)
#
# get_user_pages_remote() added 'locked' parameter by
# commit 5b56d49fc31d ("mm: add locked parameter to
# get_user_pages_remote()") in v4.10 (2016-12-14)
#
# get_user_pages_remote() removed 'tsk' parameter by
# commit 64019a2e467a ("mm/gup: remove task_struct pointer for
# all gup code") in v5.9-rc1 (2020-08-11).
#
# conftest #1: check if get_user_pages_remote() is available
# return if not available.
# Fall through to conftest #2 if it is present
#
echo "$CONFTEST_PREAMBLE
#include <linux/mm.h>
void conftest_get_user_pages_remote(void) {
get_user_pages_remote();
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#undef NV_GET_USER_PAGES_REMOTE_PRESENT" | append_conftest "functions"
echo "#undef NV_GET_USER_PAGES_REMOTE_HAS_TSK_ARG" | append_conftest "functions"
echo "#undef NV_GET_USER_PAGES_REMOTE_HAS_WRITE_AND_FORCE_ARGS" | append_conftest "functions"
echo "#undef NV_GET_USER_PAGES_REMOTE_HAS_LOCKED_ARG" | append_conftest "functions"
rm -f conftest$$.o
return
fi
#
# conftest #2: check if get_user_pages_remote() has write and
# force arguments. Return if these arguments are present
# Fall through to conftest #3 if these args are absent.
#
echo "#define NV_GET_USER_PAGES_REMOTE_PRESENT" | append_conftest "functions"
echo "$CONFTEST_PREAMBLE
#include <linux/mm.h>
long get_user_pages_remote(struct task_struct *tsk,
struct mm_struct *mm,
unsigned long start,
unsigned long nr_pages,
int write,
int force,
struct page **pages,
struct vm_area_struct **vmas) {
return 0;
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_GET_USER_PAGES_REMOTE_HAS_TSK_ARG" | append_conftest "functions"
echo "#define NV_GET_USER_PAGES_REMOTE_HAS_WRITE_AND_FORCE_ARGS" | append_conftest "functions"
echo "#undef NV_GET_USER_PAGES_REMOTE_HAS_LOCKED_ARG" | append_conftest "functions"
rm -f conftest$$.o
return
fi
echo "#undef NV_GET_USER_PAGES_REMOTE_HAS_WRITE_AND_FORCE_ARGS" | append_conftest "functions"
#
# conftest #3: check if get_user_pages_remote() has locked argument
# Return if these arguments are present. Fall through to conftest #4
# if these args are absent.
#
echo "$CONFTEST_PREAMBLE
#include <linux/mm.h>
long get_user_pages_remote(struct task_struct *tsk,
struct mm_struct *mm,
unsigned long start,
unsigned long nr_pages,
unsigned int gup_flags,
struct page **pages,
struct vm_area_struct **vmas,
int *locked) {
return 0;
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_GET_USER_PAGES_REMOTE_HAS_TSK_ARG" | append_conftest "functions"
echo "#define NV_GET_USER_PAGES_REMOTE_HAS_LOCKED_ARG" | append_conftest "functions"
rm -f conftest$$.o
return
fi
#
# conftest #4: check if get_user_pages_remote() does not take
# tsk argument.
#
echo "$CONFTEST_PREAMBLE
#include <linux/mm.h>
long get_user_pages_remote(struct mm_struct *mm,
unsigned long start,
unsigned long nr_pages,
unsigned int gup_flags,
struct page **pages,
struct vm_area_struct **vmas,
int *locked) {
return 0;
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#undef NV_GET_USER_PAGES_REMOTE_HAS_TSK_ARG" | append_conftest "functions"
echo "#define NV_GET_USER_PAGES_REMOTE_HAS_LOCKED_ARG" | append_conftest "functions"
rm -f conftest$$.o
else
echo "#define NV_GET_USER_PAGES_REMOTE_HAS_TSK_ARG" | append_conftest "functions"
echo "#undef NV_GET_USER_PAGES_REMOTE_HAS_LOCKED_ARG" | append_conftest "functions"
fi
;;
usleep_range)
#
# Determine if the function usleep_range() is present.
#
# Added by commit 5e7f5a178bba ("timer: Added usleep_range timer")
# in v2.6.36 (2010-08-04)
#
CODE="
#include <linux/delay.h>
void conftest_usleep_range(void) {
usleep_range();
}"
compile_check_conftest "$CODE" "NV_USLEEP_RANGE_PRESENT" "" "functions"
;;
radix_tree_empty)
#
# Determine if the function radix_tree_empty() is present.
#
# Added by commit e9256efcc8e3 ("radix-tree: introduce
# radix_tree_empty") in v4.7 (2016-05-20)
#
CODE="
#include <linux/radix-tree.h>
int conftest_radix_tree_empty(void) {
radix_tree_empty();
}"
compile_check_conftest "$CODE" "NV_RADIX_TREE_EMPTY_PRESENT" "" "functions"
;;
drm_gem_object_lookup)
#
# Determine the number of arguments of drm_gem_object_lookup().
#
# First argument of type drm_device removed by commit
# a8ad0bd84f98 ("drm: Remove unused drm_device from
# drm_gem_object_lookup()") in v4.7 (2016-05-09)
#
echo "$CONFTEST_PREAMBLE
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_DRM_GEM_H_PRESENT)
#include <drm/drm_gem.h>
#endif
void conftest_drm_gem_object_lookup(void) {
drm_gem_object_lookup(NULL, NULL, 0);
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_DRM_GEM_OBJECT_LOOKUP_ARGUMENT_COUNT 3" | append_conftest "functions"
rm -f conftest$$.o
return
else
echo "#define NV_DRM_GEM_OBJECT_LOOKUP_ARGUMENT_COUNT 2" | append_conftest "functions"
fi
;;
drm_master_drop_has_from_release_arg)
#
# Determine if drm_driver::master_drop() has 'from_release' argument.
#
# Last argument 'bool from_release' has been removed by commit
# d6ed682eba54 ("drm: Refactor drop/set master code a bit")
# in v4.8 (2016-06-21)
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
void conftest_drm_master_drop_has_from_release_arg(struct drm_driver *drv) {
drv->master_drop(NULL, NULL, false);
}"
compile_check_conftest "$CODE" "NV_DRM_MASTER_DROP_HAS_FROM_RELEASE_ARG" "" "types"
;;
drm_atomic_state_ref_counting)
#
# Determine if functions drm_atomic_state_get/put() are
# present.
#
# Added by commit 0853695c3ba4 ("drm: Add reference counting to
# drm_atomic_state") in v4.10 (2016-10-14)
#
CODE="
#if defined(NV_DRM_DRM_ATOMIC_H_PRESENT)
#include <drm/drm_atomic.h>
#endif
void conftest_drm_atomic_state_get(void) {
drm_atomic_state_get();
}"
compile_check_conftest "$CODE" "NV_DRM_ATOMIC_STATE_REF_COUNTING_PRESENT" "" "functions"
;;
vm_ops_fault_removed_vma_arg)
#
# Determine if vma.vm_ops.fault takes (vma, vmf), or just (vmf)
# args. Acronym key:
# vma: struct vm_area_struct
# vm_ops: struct vm_operations_struct
# vmf: struct vm_fault
#
# The redundant vma arg was removed from BOTH vma.vm_ops.fault and
# vma.vm_ops.page_mkwrite by commit 11bac8000449 ("mm, fs: reduce
# fault, page_mkwrite, and pfn_mkwrite to take only vmf") in
# v4.11 (2017-02-24)
#
CODE="
#include <linux/mm.h>
void conftest_vm_ops_fault_removed_vma_arg(void) {
struct vm_operations_struct vm_ops;
struct vm_fault *vmf;
(void)vm_ops.fault(vmf);
}"
compile_check_conftest "$CODE" "NV_VM_OPS_FAULT_REMOVED_VMA_ARG" "" "types"
;;
pnv_npu2_init_context)
#
# Determine if the pnv_npu2_init_context() function is
# present and the signature of its callback.
#
# Added by commit 1ab66d1fbada ("powerpc/powernv: Introduce
# address translation services for Nvlink2") in v4.12
# (2017-04-03).
#
echo "$CONFTEST_PREAMBLE
#if defined(NV_ASM_POWERNV_H_PRESENT)
#include <linux/pci.h>
#include <asm/powernv.h>
#endif
void conftest_pnv_npu2_init_context(void) {
pnv_npu2_init_context();
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#undef NV_PNV_NPU2_INIT_CONTEXT_PRESENT" | append_conftest "functions"
echo "#undef NV_PNV_NPU2_INIT_CONTEXT_CALLBACK_RETURNS_VOID" | append_conftest "functions"
rm -f conftest$$.o
return
fi
echo "#define NV_PNV_NPU2_INIT_CONTEXT_PRESENT" | append_conftest "functions"
# Check the callback signature
echo "$CONFTEST_PREAMBLE
#if defined(NV_ASM_POWERNV_H_PRESENT)
#include <linux/pci.h>
#include <asm/powernv.h>
#endif
struct npu_context *pnv_npu2_init_context(struct pci_dev *gpdev,
unsigned long flags,
void (*cb)(struct npu_context *, void *),
void *priv) {
return NULL;
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_PNV_NPU2_INIT_CONTEXT_CALLBACK_RETURNS_VOID" | append_conftest "functions"
rm -f conftest$$.o
return
fi
echo "#undef NV_PNV_NPU2_INIT_CONTEXT_CALLBACK_RETURNS_VOID" | append_conftest "functions"
;;
of_get_ibm_chip_id)
#
# Determine if the of_get_ibm_chip_id() function is present.
#
# Added by commit b130e7c04f11 ("powerpc: export
# of_get_ibm_chip_id function") in v4.2 (2015-05-07)
#
CODE="
#include <linux/version.h>
#if defined(NV_ASM_PROM_H_PRESENT)
#include <asm/prom.h>
#endif
void conftest_of_get_ibm_chip_id(void) {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
of_get_ibm_chip_id();
#endif
}"
compile_check_conftest "$CODE" "NV_OF_GET_IBM_CHIP_ID_PRESENT" "" "functions"
;;
drm_driver_unload_has_int_return_type)
#
# Determine if drm_driver::unload() returns integer value
#
# Changed to void by commit 11b3c20bdd15 ("drm: Change the return
# type of the unload hook to void") in v4.11 (2017-01-06)
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
int conftest_drm_driver_unload_has_int_return_type(struct drm_driver *drv) {
return drv->unload(NULL /* dev */);
}"
compile_check_conftest "$CODE" "NV_DRM_DRIVER_UNLOAD_HAS_INT_RETURN_TYPE" "" "types"
;;
is_export_symbol_present_*)
export_symbol_present_conftest $(echo $1 | cut -f5- -d_)
;;
is_export_symbol_gpl_*)
export_symbol_gpl_conftest $(echo $1 | cut -f5- -d_)
;;
drm_atomic_helper_crtc_destroy_state_has_crtc_arg)
#
# Determine if __drm_atomic_helper_crtc_destroy_state() has 'crtc'
# argument.
#
# 'crtc' argument removed by commit ec2dc6a0fe38 ("drm: Drop crtc
# argument from __drm_atomic_helper_crtc_destroy_state") in v4.7
# (2016-05-09)
#
CODE="
#if defined(NV_DRM_DRM_ATOMIC_HELPER_H_PRESENT)
#include <drm/drm_atomic_helper.h>
#endif
void conftest_drm_atomic_helper_crtc_destroy_state_has_crtc_arg(void) {
__drm_atomic_helper_crtc_destroy_state(NULL, NULL);
}"
compile_check_conftest "$CODE" "NV_DRM_ATOMIC_HELPER_CRTC_DESTROY_STATE_HAS_CRTC_ARG" "" "types"
;;
drm_atomic_helper_plane_destroy_state_has_plane_arg)
#
# Determine if __drm_atomic_helper_plane_destroy_state has
# 'plane' argument.
#
# 'plane' argument removed by commit 2f701695fd3a (drm: Drop plane
# argument from __drm_atomic_helper_plane_destroy_state") in v4.7
# (2016-05-09)
#
CODE="
#if defined(NV_DRM_DRM_ATOMIC_HELPER_H_PRESENT)
#include <drm/drm_atomic_helper.h>
#endif
void conftest_drm_atomic_helper_plane_destroy_state_has_plane_arg(void) {
__drm_atomic_helper_plane_destroy_state(NULL, NULL);
}"
compile_check_conftest "$CODE" "NV_DRM_ATOMIC_HELPER_PLANE_DESTROY_STATE_HAS_PLANE_ARG" "" "types"
;;
drm_atomic_helper_connector_dpms)
#
# Determine if the function drm_atomic_helper_connector_dpms() is present.
#
# Removed by commit 7d902c05b480 ("drm: Nuke
# drm_atomic_helper_connector_dpms") in v4.14 (2017-07-25)
#
CODE="
#if defined(NV_DRM_DRM_ATOMIC_HELPER_H_PRESENT)
#include <drm/drm_atomic_helper.h>
#endif
void conftest_drm_atomic_helper_connector_dpms(void) {
drm_atomic_helper_connector_dpms();
}"
compile_check_conftest "$CODE" "NV_DRM_ATOMIC_HELPER_CONNECTOR_DPMS_PRESENT" "" "functions"
;;
get_backlight_device_by_name)
#
# Determine if the get_backlight_device_by_name() function is present
#
CODE="
#include <linux/backlight.h>
int conftest_get_backlight_device_by_name(void) {
return get_backlight_device_by_name();
}"
compile_check_conftest "$CODE" "NV_GET_BACKLIGHT_DEVICE_BY_NAME_PRESENT" "" "functions"
;;
timer_setup)
#
# Determine if the function timer_setup() is present.
#
# Added by commit 686fef928bba ("timer: Prepare to change timer
# callback argument type") in v4.14 (2017-09-28)
#
CODE="
#include <linux/timer.h>
int conftest_timer_setup(void) {
return timer_setup();
}"
compile_check_conftest "$CODE" "NV_TIMER_SETUP_PRESENT" "" "functions"
;;
radix_tree_replace_slot)
#
# Determine if the radix_tree_replace_slot() function is
# present and how many arguments it takes.
#
# root parameter added to radix_tree_replace_slot (but the symbol
# was not exported) by commit 6d75f366b924 ("lib: radix-tree:
# check accounting of existing slot replacement users") in v4.10
# (2016-12-12)
#
# radix_tree_replace_slot symbol export added by commit
# 10257d719686 ("EXPORT_SYMBOL radix_tree_replace_slot") in v4.11
# (2017-01-11)
#
CODE="
#include <linux/radix-tree.h>
#include <linux/version.h>
void conftest_radix_tree_replace_slot(void) {
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)) || (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0))
radix_tree_replace_slot();
#endif
}"
compile_check_conftest "$CODE" "NV_RADIX_TREE_REPLACE_SLOT_PRESENT" "" "functions"
echo "$CONFTEST_PREAMBLE
#include <linux/radix-tree.h>
void conftest_radix_tree_replace_slot(void) {
radix_tree_replace_slot(NULL, NULL);
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "#define NV_RADIX_TREE_REPLACE_SLOT_ARGUMENT_COUNT 2" | append_conftest "functions"
return
fi
echo "$CONFTEST_PREAMBLE
#include <linux/radix-tree.h>
void conftest_radix_tree_replace_slot(void) {
radix_tree_replace_slot(NULL, NULL, NULL);
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "#define NV_RADIX_TREE_REPLACE_SLOT_ARGUMENT_COUNT 3" | append_conftest "functions"
return
else
echo "#error radix_tree_replace_slot() conftest failed!" | append_conftest "functions"
fi
;;
kthread_create_on_node)
#
# Determine if kthread_create_on_node is available
#
# kthread_create_on_node was added in by commit 207205a2ba26
# ("kthread: NUMA aware kthread_create_on_node()") in v2.6.39
# (2011-03-22).
#
CODE="
#include <linux/kthread.h>
void kthread_create_on_node_conftest(void) {
(void)kthread_create_on_node();
}"
compile_check_conftest "$CODE" "NV_KTHREAD_CREATE_ON_NODE_PRESENT" "" "functions"
;;
cpumask_of_node)
#
# Determine whether cpumask_of_node is available.
#
# ARM support for cpumask_of_node() lagged until commit 1a2db300348b
# ("arm64, numa: Add NUMA support for arm64 platforms.") in v4.7
# (2016-04-08)
#
CODE="
#include <asm/topology.h>
void conftest_cpumask_of_node(void) {
(void)cpumask_of_node();
}"
compile_check_conftest "$CODE" "NV_CPUMASK_OF_NODE_PRESENT" "" "functions"
;;
drm_mode_object_find_has_file_priv_arg)
#
# Determine if drm_mode_object_find() has 'file_priv' arguments.
#
# Updated to take 'file_priv' argument by commit 418da17214ac
# ("drm: Pass struct drm_file * to __drm_mode_object_find [v2]")
# in v4.15 (2017-03-14)
#
CODE="
#include <drm/drm_mode_object.h>
void conftest_drm_mode_object_find_has_file_priv_arg(
struct drm_device *dev,
struct drm_file *file_priv,
uint32_t id,
uint32_t type) {
(void)drm_mode_object_find(dev, file_priv, id, type);
}"
compile_check_conftest "$CODE" "NV_DRM_MODE_OBJECT_FIND_HAS_FILE_PRIV_ARG" | append_conftest "types"
;;
pci_enable_msix_range)
#
# Determine if the pci_enable_msix_range() function is present.
#
# Added by commit 302a2523c277 ("PCI/MSI: Add
# pci_enable_msi_range() and pci_enable_msix_range()") in v3.14
# (2013-12-30)
#
CODE="
#include <linux/pci.h>
void conftest_pci_enable_msix_range(void) {
pci_enable_msix_range();
}"
compile_check_conftest "$CODE" "NV_PCI_ENABLE_MSIX_RANGE_PRESENT" "" "functions"
;;
dma_buf_owner)
#
# Determine if the dma_buf struct has an owner member.
#
# Added by commit 9abdffe286c1 ("dma-buf: add ref counting for
# module as exporter") in v4.2 (2015-05-05)
#
CODE="
#include <linux/dma-buf.h>
int conftest_dma_buf_owner(void) {
return offsetof(struct dma_buf, owner);
}"
compile_check_conftest "$CODE" "NV_DMA_BUF_OWNER_PRESENT" "" "types"
;;
dma_buf_export_args)
#
# Determine argument count for dma_buf_export().
#
# 4 arguments added by commit d15bd7ee445d
# ("dma-buf: Introduce dma buffer sharing mechanism")
# in v3.3 (2011-12-26)
#
# Additional argument added by commit 3aac4502fd3f
# ("dma-buf: use reservation objects") in v3.17 (2014-07-01).
#
# Parameters wrapped in a single struct dma_buf_export_info by commit:
# d8fbe341beb6("dma-buf: cleanup dma_buf_export() to make it easily extensible")
# in v4.1 (2015-01-23).
#
echo "$CONFTEST_PREAMBLE
#include <linux/dma-buf.h>
struct dma_buf* conftest_dma_buf_export(void) {
return dma_buf_export(NULL);
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "#define NV_DMA_BUF_EXPORT_ARGUMENT_COUNT 1" | append_conftest "functions"
return
fi
echo "$CONFTEST_PREAMBLE
#include <linux/dma-buf.h>
struct dma_buf* conftest_dma_buf_export(void) {
return dma_buf_export(NULL, NULL, 0, 0);
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "#define NV_DMA_BUF_EXPORT_ARGUMENT_COUNT 4" | append_conftest "functions"
return
fi
echo "$CONFTEST_PREAMBLE
#include <linux/dma-buf.h>
struct dma_buf* conftest_dma_buf_export(void) {
return dma_buf_export(NULL, NULL, 0, 0, NULL);
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "#define NV_DMA_BUF_EXPORT_ARGUMENT_COUNT 5" | append_conftest "functions"
return
fi
echo "#error dma_buf_export() conftest failed!" | append_conftest "functions"
;;
dma_buf_ops_has_kmap)
#
# Determine if .kmap exists in dma_buf_ops.
# In some kernels, this is a mandatory callback.
#
# Added by commit fc13020e086b
# ("dma-buf: add support for kernel cpu access") in v3.4 (2012-03-20)
#
echo "$CONFTEST_PREAMBLE
#include <linux/dma-buf.h>
int conftest_dma_buf_ops_has_kmap(void) {
return offsetof(struct dma_buf_ops, kmap);
}
int conftest_dma_buf_ops_has_kunmap(void) {
return offsetof(struct dma_buf_ops, kunmap);
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_DMA_BUF_OPS_HAS_KMAP" | append_conftest "types"
rm -f conftest$$.o
return
else
echo "#undef NV_DMA_BUF_OPS_HAS_KMAP" | append_conftest "types"
return
fi
;;
dma_buf_ops_has_kmap_atomic)
#
# Determine if .kmap_atomic exists in dma_buf_ops.
# In some kernels, this is a mandatory callback.
#
# Added by commit fc13020e086b
# ("dma-buf: add support for kernel cpu access")in v3.4 (2012-03-20)
#
echo "$CONFTEST_PREAMBLE
#include <linux/dma-buf.h>
int conftest_dma_buf_ops_has_kmap_atomic(void) {
return offsetof(struct dma_buf_ops, kmap_atomic);
}
int conftest_dma_buf_ops_has_kunmap_atomic(void) {
return offsetof(struct dma_buf_ops, kunmap_atomic);
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_DMA_BUF_OPS_HAS_KMAP_ATOMIC" | append_conftest "types"
rm -f conftest$$.o
return
else
echo "#undef NV_DMA_BUF_OPS_HAS_KMAP_ATOMIC" | append_conftest "types"
return
fi
;;
dma_buf_ops_has_map)
#
# Determine if .map exists in dma_buf_ops.
# In some kernels, this is a mandatory callback.
#
# Added by commit f9b67f0014cb
# ("dma-buf: Rename dma-ops to prevent conflict with kunmap_atomic macro")
# in v4.12 (2017-04-19)
#
# Removed as a mandatory callback by commit f82aab2d521e
# ("dma-buf: Remove requirement for ops->map() from dma_buf_export")
# in v4.20 (2018-08-07)
#
# Completely removed from dma-buf by commit 4337ebbbbda3
# ("dma-buf: Remove kernel map/unmap hooks") in v5.6 (2019-11-18)
#
echo "$CONFTEST_PREAMBLE
#include <linux/dma-buf.h>
int conftest_dma_buf_ops_has_map(void) {
return offsetof(struct dma_buf_ops, map);
}
int conftest_dma_buf_ops_has_unmap(void) {
return offsetof(struct dma_buf_ops, unmap);
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_DMA_BUF_OPS_HAS_MAP" | append_conftest "types"
rm -f conftest$$.o
return
else
echo "#undef NV_DMA_BUF_OPS_HAS_MAP" | append_conftest "types"
return
fi
;;
dma_buf_ops_has_map_atomic)
#
# Determine if map_atomic/unmap_atomic exists in dma_buf_ops.
# In some kernels, this is a mandatory callback.
#
# Added by commit f9b67f0014cb
# ("dma-buf: Rename dma-ops to prevent conflict with kunmap_atomic macro")
# in v4.12 (2017-04-19)
#
# Removed by commit f664a5269542
# ("dma-buf: remove kmap_atomic interface") in v4.19 (2018-05-28)
#
echo "$CONFTEST_PREAMBLE
#include <linux/dma-buf.h>
int conftest_dma_buf_ops_has_map_atomic(void) {
return offsetof(struct dma_buf_ops, map_atomic);
}
int conftest_dma_buf_ops_has_unmap_atomic(void) {
return offsetof(struct dma_buf_ops, unmap_atomic);
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_DMA_BUF_OPS_HAS_MAP_ATOMIC" | append_conftest "types"
rm -f conftest$$.o
return
else
echo "#undef NV_DMA_BUF_OPS_HAS_MAP_ATOMIC" | append_conftest "types"
return
fi
;;
dma_buf_has_dynamic_attachment)
#
# Determine if the function dma_buf_attachment_is_dynamic()
# is present.
#
# Added by commit: 15fd552d186c
# ("dma-buf: change DMA-buf locking convention v3") in v5.5 (2018-07-03)
#
echo "$CONFTEST_PREAMBLE
#include <linux/dma-buf.h>
bool conftest_dma_buf_attachment_is_dynamic(void) {
return dma_buf_attachment_is_dynamic(NULL);
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_DMA_BUF_HAS_DYNAMIC_ATTACHMENT" | append_conftest "functions"
rm -f conftest$$.o
return
else
echo "#undef NV_DMA_BUF_HAS_DYNAMIC_ATTACHMENT" | append_conftest "functions"
return
fi
;;
dma_buf_attachment_has_peer2peer)
#
# Determine if peer2peer is present in struct dma_buf_attachment.
# peer2peer being true indicates that a dma-buf importer is able
# to handle peer resources not backed by struct page.
#
# Added by commit: 09606b5446c2
# ("dma-buf: add peer2peer flag") in v5.8 (2018-03-22)
#
echo "$CONFTEST_PREAMBLE
#include <linux/dma-buf.h>
int conftest_dma_buf_peer2peer(void) {
return offsetof(struct dma_buf_attachment, peer2peer);
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_DMA_BUF_ATTACHMENT_HAS_PEER2PEER" | append_conftest "types"
rm -f conftest$$.o
return
else
echo "#undef NV_DMA_BUF_ATTACHMENT_HAS_PEER2PEER" | append_conftest "types"
return
fi
;;
drm_connector_funcs_have_mode_in_name)
#
# Determine if _mode_ is present in connector function names. We
# only test drm_mode_connector_attach_encoder() and assume the
# other functions are changed in sync.
#
# drm_mode_connector_attach_encoder() was renamed to
# drm_connector_attach_encoder() by commit cde4c44d8769 ("drm:
# drop _mode_ from drm_mode_connector_attach_encoder") in v4.19
# (2018-07-09)
#
# drm_mode_connector_update_edid_property() was renamed by commit
# c555f02371c3 ("drm: drop _mode_ from update_edit_property()")
# in v4.19 (2018-07-09).
#
# The other DRM functions were renamed by commit 97e14fbeb53f
# ("drm: drop _mode_ from remaining connector functions") in v4.19
# (2018-07-09)
#
# Note that drm_connector.h by introduced by commit 522171951761
# ("drm: Extract drm_connector.[hc]") in v4.9 (2016-08-12)
#
CODE="
#include <drm/drm_connector.h>
void conftest_drm_connector_funcs_have_mode_in_name(void) {
drm_mode_connector_attach_encoder();
}"
compile_check_conftest "$CODE" "NV_DRM_CONNECTOR_FUNCS_HAVE_MODE_IN_NAME" "" "functions"
;;
node_states_n_memory)
#
# Determine if the N_MEMORY constant exists.
#
# Added by commit 8219fc48adb3 ("mm: node_states: introduce
# N_MEMORY") in v3.8 (2012-12-12).
#
CODE="
#include <linux/nodemask.h>
int conftest_node_states_n_memory(void) {
return N_MEMORY;
}"
compile_check_conftest "$CODE" "NV_NODE_STATES_N_MEMORY_PRESENT" "" "types"
;;
vm_fault_t)
#
# Determine if vm_fault_t is present
#
# Added by commit 1c8f422059ae5da07db7406ab916203f9417e396 ("mm:
# change return type to vm_fault_t") in v4.17 (2018-04-05)
#
CODE="
#include <linux/mm.h>
vm_fault_t conftest_vm_fault_t;
"
compile_check_conftest "$CODE" "NV_VM_FAULT_T_IS_PRESENT" "" "types"
;;
vmf_insert_pfn)
#
# Determine if the function vmf_insert_pfn() is
# present.
#
# Added by commit 1c8f422059ae5da07db7406ab916203f9417e396 ("mm:
# change return type to vm_fault_t") in v4.17 (2018-04-05)
#
CODE="
#include <linux/mm.h>
void conftest_vmf_insert_pfn(void) {
vmf_insert_pfn();
}"
compile_check_conftest "$CODE" "NV_VMF_INSERT_PFN_PRESENT" "" "functions"
;;
drm_framebuffer_get)
#
# Determine if the function drm_framebuffer_get() is present.
#
# Added by commit a4a69da06bc1 ("drm: Introduce
# drm_framebuffer_{get,put}()") in v4.12 (2017-02-28).
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_DRM_FRAMEBUFFER_H_PRESENT)
#include <drm/drm_framebuffer.h>
#endif
void conftest_drm_framebuffer_get(void) {
drm_framebuffer_get();
}"
compile_check_conftest "$CODE" "NV_DRM_FRAMEBUFFER_GET_PRESENT" "" "functions"
;;
drm_gem_object_get)
#
# Determine if the function drm_gem_object_get() is present.
#
# Added by commit e6b62714e87c ("drm: Introduce
# drm_gem_object_{get,put}()") in v4.12 (2017-02-28).
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_DRM_GEM_H_PRESENT)
#include <drm/drm_gem.h>
#endif
void conftest_drm_gem_object_get(void) {
drm_gem_object_get();
}"
compile_check_conftest "$CODE" "NV_DRM_GEM_OBJECT_GET_PRESENT" "" "functions"
;;
drm_dev_put)
#
# Determine if the function drm_dev_put() is present.
#
# Added by commit 9a96f55034e4 ("drm: introduce drm_dev_{get/put}
# functions") in v4.15 (2017-09-26).
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_DRM_DRV_H_PRESENT)
#include <drm/drm_drv.h>
#endif
void conftest_drm_dev_put(void) {
drm_dev_put();
}"
compile_check_conftest "$CODE" "NV_DRM_DEV_PUT_PRESENT" "" "functions"
;;
drm_connector_list_iter)
#
# Determine if the drm_connector_list_iter struct is present.
#
# Added by commit 613051dac40da1751ab269572766d3348d45a197 ("drm:
# locking&new iterators for connector_list") in v4.11 (2016-12-14).
#
CODE="
#include <drm/drm_connector.h>
int conftest_drm_connector_list_iter(void) {
struct drm_connector_list_iter conn_iter;
}"
compile_check_conftest "$CODE" "NV_DRM_CONNECTOR_LIST_ITER_PRESENT" "" "types"
#
# Determine if the function drm_connector_list_iter_get() is
# renamed to drm_connector_list_iter_begin().
#
# Renamed by b982dab1e66d2b998e80a97acb6eaf56518988d3 (drm: Rename
# connector list iterator API) in v4.12 (2017-02-28).
#
CODE="
#if defined(NV_DRM_DRM_CONNECTOR_H_PRESENT)
#include <drm/drm_connector.h>
#endif
void conftest_drm_connector_list_iter_begin(void) {
drm_connector_list_iter_begin();
}"
compile_check_conftest "$CODE" "NV_DRM_CONNECTOR_LIST_ITER_BEGIN_PRESENT" "" "functions"
;;
drm_atomic_helper_swap_state_has_stall_arg)
#
# Determine if drm_atomic_helper_swap_state() has 'stall' argument.
#
# drm_atomic_helper_swap_state() function prototype updated to take
# 'state' and 'stall' arguments by commit
# 5e84c2690b805caeff3b4c6c9564c7b8de54742d (drm/atomic-helper:
# Massage swap_state signature somewhat)
# in v4.8 (2016-06-10).
#
CODE="
#include <drm/drm_atomic_helper.h>
void conftest_drm_atomic_helper_swap_state_has_stall_arg(
struct drm_atomic_state *state,
bool stall) {
(void)drm_atomic_helper_swap_state(state, stall);
}"
compile_check_conftest "$CODE" "NV_DRM_ATOMIC_HELPER_SWAP_STATE_HAS_STALL_ARG" | append_conftest "types"
#
# Determine if drm_atomic_helper_swap_state() returns int.
#
# drm_atomic_helper_swap_state() function prototype
# updated to return int by commit
# c066d2310ae9bbc695c06e9237f6ea741ec35e43 (drm/atomic: Change
# drm_atomic_helper_swap_state to return an error.) in v4.14
# (2017-07-11).
#
CODE="
#include <drm/drm_atomic_helper.h>
int conftest_drm_atomic_helper_swap_state_return_int(
struct drm_atomic_state *state,
bool stall) {
return drm_atomic_helper_swap_state(state, stall);
}"
compile_check_conftest "$CODE" "NV_DRM_ATOMIC_HELPER_SWAP_STATE_RETURN_INT" | append_conftest "types"
;;
pm_runtime_available)
#
# Determine if struct dev_pm_info has the 'usage_count' field.
#
# This was added to the kernel in commit 5e928f77a09a0 in v2.6.32
# (2008-08-18), but originally were dependent on CONFIG_PM_RUNTIME,
# which was folded into the more generic CONFIG_PM in commit
# d30d819dc8310 in v3.19 (2014-11-27).
# Rather than attempt to select the appropriate CONFIG option,
# simply check if this member is present.
#
CODE="
#include <linux/pm.h>
void pm_runtime_conftest(void) {
struct dev_pm_info dpmi;
atomic_set(&dpmi.usage_count, 1);
}"
compile_check_conftest "$CODE" "NV_PM_RUNTIME_AVAILABLE" "" "generic"
;;
device_driver_of_match_table)
#
# Determine if the device_driver struct has an of_match_table member.
#
# of_match_table was added by commit 597b9d1e44e9 ("drivercore:
# Add of_match_table to the common device drivers") in v2.6.35
# (2010-04-13).
#
CODE="
#include <linux/device.h>
int conftest_device_driver_of_match_table(void) {
return offsetof(struct device_driver, of_match_table);
}"
compile_check_conftest "$CODE" "NV_DEVICE_DRIVER_OF_MATCH_TABLE_PRESENT" "" "types"
;;
device_of_node)
#
# Determine if the device struct has an of_node member.
#
# of_node member was added by commit d706c1b05027 ("driver-core:
# Add device node pointer to struct device") in v2.6.35
# (2010-04-13).
#
CODE="
#include <linux/device.h>
int conftest_device_of_node(void) {
return offsetof(struct device, of_node);
}"
compile_check_conftest "$CODE" "NV_DEVICE_OF_NODE_PRESENT" "" "types"
;;
dev_is_pci)
#
# Determine if the dev_is_pci() macro is present.
#
# dev_is_pci() macro was added by commit fb8a0d9d1bfd ("pci: Add
# SR-IOV convenience functions and macros") in v2.6.34
# (2010-02-10).
#
CODE="
#include <linux/pci.h>
void conftest_dev_is_pci(void) {
if(dev_is_pci()) {}
}
"
compile_check_conftest "$CODE" "NV_DEV_IS_PCI_PRESENT" "" "functions"
;;
of_find_matching_node)
#
# Determine if the of_find_matching_node() function is present.
#
# Test if linux/of.h header file inclusion is successful or not and
# define/undefine NV_LINUX_OF_H_USABLE depending upon status of inclusion.
#
# of_find_matching_node was added by commit 283029d16a88
# ("[POWERPC] Add of_find_matching_node() helper function") in
# v2.6.25 (2008-01-09).
#
echo "$CONFTEST_PREAMBLE
#include <linux/of.h>
" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "#define NV_LINUX_OF_H_USABLE" | append_conftest "generic"
CODE="
#include <linux/of.h>
void conftest_of_find_matching_node() {
of_find_matching_node();
}"
compile_check_conftest "$CODE" "NV_OF_FIND_MATCHING_NODE_PRESENT" "" "functions"
else
echo "#undef NV_LINUX_OF_H_USABLE" | append_conftest "generic"
echo "#undef NV_OF_FIND_MATCHING_NODE_PRESENT" | append_conftest "functions"
fi
;;
dma_direct_map_resource)
#
# Determine whether dma_is_direct() exists.
#
# dma_is_direct() was added by commit 356da6d0cde3 ("dma-mapping:
# bypass indirect calls for dma-direct") in 5.1 (2018-12-06).
#
# If dma_is_direct() does exist, then we assume that
# dma_direct_map_resource() exists. Both functions were added
# as part of the same patchset.
#
# The presence of dma_is_direct() and dma_direct_map_resource()
# means that dma_direct can perform DMA mappings itself.
#
CODE="
#include <linux/dma-mapping.h>
void conftest_dma_is_direct(void) {
dma_is_direct();
}"
compile_check_conftest "$CODE" "NV_DMA_IS_DIRECT_PRESENT" "" "functions"
;;
tegra_get_platform)
#
# Determine if tegra_get_platform() function is present
#
CODE="
#if defined NV_SOC_TEGRA_CHIP_ID_H_PRESENT
#include <soc/tegra/chip-id.h>
#elif defined(NV_SOC_TEGRA_FUSE_H_PRESENT)
#include <soc/tegra/fuse.h>
#endif
void conftest_tegra_get_platform(void) {
tegra_get_platform(0);
}
"
compile_check_conftest "$CODE" "NV_TEGRA_GET_PLATFORM_PRESENT" "" "functions"
;;
tegra_bpmp_send_receive)
#
# Determine if tegra_bpmp_send_receive() function is present
#
CODE="
#if defined NV_SOC_TEGRA_TEGRA_BPMP_H_PRESENT
#include <soc/tegra/tegra_bpmp.h>
#endif
int conftest_tegra_bpmp_send_receive(
int mrq,
void *ob_data,
int ob_sz,
void *ib_data,
int ib_sz) {
return tegra_bpmp_send_receive(mrq, ob_data, ob_sz, ib_data, ib_sz);
}
"
compile_check_conftest "$CODE" "NV_TEGRA_BPMP_SEND_RECEIVE" "" "functions"
;;
drm_alpha_blending_available)
#
# Determine if the DRM subsystem supports alpha blending
#
# This conftest using "generic" rather than "functions" because
# with the logic of "functions" the presence of
# *either*_alpha_property or _blend_mode_property would be enough
# to cause NV_DRM_ALPHA_BLENDING_AVAILABLE to be defined.
#
CODE="
#if defined(NV_DRM_DRM_BLEND_H_PRESENT)
#include <drm/drm_blend.h>
#endif
void conftest_drm_alpha_blending_available(void) {
/* 2018-04-11 ae0e28265e216dad11d4cbde42fc15e92919af78 */
(void)drm_plane_create_alpha_property;
/* 2018-08-23 a5ec8332d4280500544e316f76c04a7adc02ce03 */
(void)drm_plane_create_blend_mode_property;
}"
compile_check_conftest "$CODE" "NV_DRM_ALPHA_BLENDING_AVAILABLE" "" "generic"
;;
drm_rotation_available)
#
# Determine if the DRM subsystem supports rotation.
#
# drm_plane_create_rotation_property() was added on 2016-09-26 by
# d138dd3c0c70979215f3184cf36f95875e37932e (drm: Add support for
# optional per-plane rotation property) in linux kernel. Presence
# of it is sufficient to say that DRM subsystem support rotation.
#
CODE="
#if defined(NV_DRM_DRM_BLEND_H_PRESENT)
#include <drm/drm_blend.h>
#endif
void conftest_drm_rotation_available(void) {
drm_plane_create_rotation_property();
}"
compile_check_conftest "$CODE" "NV_DRM_ROTATION_AVAILABLE" "" "functions"
;;
drm_driver_prime_flag_present)
#
# Determine whether driver feature flag DRIVER_PRIME is present.
#
# The DRIVER_PRIME flag was added by commit 3248877ea179 (drm:
# base prime/dma-buf support (v5)) in v3.4 (2011-11-25) and is
# removed by commit 0424fdaf883a (drm/prime: Actually remove
# DRIVER_PRIME everywhere) on 2019-06-17.
#
# DRIVER_PRIME definition moved from drmP.h to drm_drv.h by
# commit 85e634bce01a (drm: Extract drm_drv.h) in v4.10
# (2016-11-14).
#
# DRIVER_PRIME define is changed to enum value by commit
# 0e2a933b02c9 (drm: Switch DRIVER_ flags to an enum) in v5.1
# (2019-01-29).
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_DRM_DRV_H_PRESENT)
#include <drm/drm_drv.h>
#endif
unsigned int drm_driver_prime_flag_present_conftest(void) {
return DRIVER_PRIME;
}"
compile_check_conftest "$CODE" "NV_DRM_DRIVER_PRIME_FLAG_PRESENT" "" "types"
;;
drm_connector_for_each_possible_encoder)
#
# Determine the number of arguments of the
# drm_connector_for_each_possible_encoder() macro.
#
# drm_connector_for_each_possible_encoder() is added by commit
# 83aefbb887b5 (drm: Add drm_connector_for_each_possible_encoder())
# in v4.19. The definition and prorotype is changed to take only
# two arguments connector and encoder, by commit 62afb4ad425a
# (drm/connector: Allow max possible encoders to attach to a
# connector) in v5.5rc1.
#
echo "$CONFTEST_PREAMBLE
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_CONNECTOR_H_PRESENT)
#include <drm/drm_connector.h>
#endif
void conftest_drm_connector_for_each_possible_encoder(
struct drm_connector *connector,
struct drm_encoder *encoder,
int i) {
drm_connector_for_each_possible_encoder(connector, encoder, i) {
}
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
echo "#define NV_DRM_CONNECTOR_FOR_EACH_POSSIBLE_ENCODER_ARGUMENT_COUNT 3" | append_conftest "functions"
rm -f conftest$$.o
return
else
echo "#define NV_DRM_CONNECTOR_FOR_EACH_POSSIBLE_ENCODER_ARGUMENT_COUNT 2" | append_conftest "functions"
fi
;;
mmu_notifier_ops_invalidate_range)
#
# Determine if the mmu_notifier_ops struct has the
# 'invalidate_range' member.
#
# struct mmu_notifier_ops.invalidate_range was added by commit
# 0f0a327fa12cd55de5e7f8c05a70ac3d047f405e ("mmu_notifier: add the
# callback for mmu_notifier_invalidate_range()") in v3.19
# (2014-11-13).
CODE="
#include <linux/mmu_notifier.h>
int conftest_mmu_notifier_ops_invalidate_range(void) {
return offsetof(struct mmu_notifier_ops, invalidate_range);
}"
compile_check_conftest "$CODE" "NV_MMU_NOTIFIER_OPS_HAS_INVALIDATE_RANGE" "" "types"
;;
drm_format_num_planes)
#
# Determine if drm_format_num_planes() function is present.
#
# The drm_format_num_planes() function was added by commit
# d0d110e09629 drm: Add drm_format_num_planes() utility function in
# v3.3 (2011-12-20). Prototype was moved from drm_crtc.h to
# drm_fourcc.h by commit ae4df11a0f53 (drm: Move format-related
# helpers to drm_fourcc.c) in v4.8 (2016-06-09).
# drm_format_num_planes() has been removed by commit 05c452c115bf
# (drm: Remove users of drm_format_num_planes) removed v5.3
# (2019-05-16).
#
CODE="
#if defined(NV_DRM_DRM_CRTC_H_PRESENT)
#include <drm/drm_crtc.h>
#endif
#if defined(NV_DRM_DRM_FOURCC_H_PRESENT)
#include <drm/drm_fourcc.h>
#endif
void conftest_drm_format_num_planes(void) {
drm_format_num_planes();
}
"
compile_check_conftest "$CODE" "NV_DRM_FORMAT_NUM_PLANES_PRESENT" "" "functions"
;;
drm_gem_object_has_resv)
#
# Determine if the 'drm_gem_object' structure has a 'resv' field.
#
# A 'resv' filed in the 'drm_gem_object' structure, is added by
# commit 1ba627148ef5 (drm: Add reservation_object to
# drm_gem_object) in v5.2.
#
CODE="$CONFTEST_PREAMBLE
#if defined(NV_DRM_DRM_GEM_H_PRESENT)
#include <drm/drm_gem.h>
#endif
int conftest_drm_gem_object_has_resv(void) {
return offsetof(struct drm_gem_object, resv);
}"
compile_check_conftest "$CODE" "NV_DRM_GEM_OBJECT_HAS_RESV" "" "types"
;;
proc_ops)
#
# Determine if the 'struct proc_ops' type is present.
#
# Added by commit d56c0d45f0e2 ("proc: decouple proc from VFS with
# "struct proc_ops"") in 5.6-rc1
#
CODE="
#include <linux/proc_fs.h>
struct proc_ops p_ops;
"
compile_check_conftest "$CODE" "NV_PROC_OPS_PRESENT" "" "types"
;;
drm_crtc_state_has_async_flip)
#
# Determine if the 'drm_crtc_state' structure has a 'async_flip'
# field.
#
# Commit 4d85f45c73a2 (drm/atomic: Rename crtc_state->pageflip_flags
# to async_flip) replaced 'pageflip_flags' by 'async_flip' in v5.4.
#
CODE="
#if defined(NV_DRM_DRM_CRTC_H_PRESENT)
#include <drm/drm_crtc.h>
#endif
int conftest_drm_crtc_state_has_async_flip(void) {
return offsetof(struct drm_crtc_state, async_flip);
}"
compile_check_conftest "$CODE" "NV_DRM_CRTC_STATE_HAS_ASYNC_FLIP" "" "types"
;;
drm_crtc_state_has_pageflip_flags)
#
# Determine if the 'drm_crtc_state' structure has a
# 'pageflip_flags' field.
#
# 'pageflip_flags' added by commit 6cbe5c466d73 (drm/atomic: Save
# flip flags in drm_crtc_state) in v4.12. Commit 4d85f45c73a2
# (drm/atomic: Rename crtc_state->pageflip_flags to async_flip)
# replaced 'pageflip_flags' by 'async_flip' in v5.4.
#
CODE="
#if defined(NV_DRM_DRM_CRTC_H_PRESENT)
#include <drm/drm_crtc.h>
#endif
int conftest_drm_crtc_state_has_pageflip_flags(void) {
return offsetof(struct drm_crtc_state, pageflip_flags);
}"
compile_check_conftest "$CODE" "NV_DRM_CRTC_STATE_HAS_PAGEFLIP_FLAGS" "" "types"
;;
ktime_get_raw_ts64)
#
# Determine if ktime_get_raw_ts64() is present
#
# Added by commit fb7fcc96a86cf ("timekeeping: Standardize on
# ktime_get_*() naming") in 4.18 (2018-04-27)
#
CODE="
#include <linux/ktime.h>
void conftest_ktime_get_raw_ts64(void){
ktime_get_raw_ts64();
}"
compile_check_conftest "$CODE" "NV_KTIME_GET_RAW_TS64_PRESENT" "" "functions"
;;
ktime_get_real_ts64)
#
# Determine if ktime_get_real_ts64() is present
#
# Added by commit d6d29896c665d ("timekeeping: Provide timespec64
# based interfaces") in 3.17 (2014-07-16)
#
CODE="
#include <linux/ktime.h>
void conftest_ktime_get_real_ts64(void){
ktime_get_real_ts64();
}"
compile_check_conftest "$CODE" "NV_KTIME_GET_REAL_TS64_PRESENT" "" "functions"
;;
drm_format_modifiers_present)
#
# Determine whether the base DRM format modifier support is present.
#
# This will show up in a few places:
#
# -Definition of the format modifier constructor macro, which
# we can use to reconstruct our bleeding-edge format modifiers
# when the local kernel headers don't include them.
#
# -The first set of format modifier vendor macros, including the
# poorly named "NV" vendor, which was later renamed "NVIDIA".
#
# -the "modifier[]" member of the AddFB2 ioctl's parameter
# structure.
#
# All these were added by commit e3eb3250d84e (drm: add support for
# tiled/compressed/etc modifier in addfb2) in 4.1-rc1 (2015-02-05).
CODE="
#include <drm/drm_mode.h>
#include <drm/drm_fourcc.h>
int conftest_fourcc_fb_modifiers(void) {
u64 my_fake_mod = fourcc_mod_code(INTEL, 0);
(void)my_fake_mod;
return offsetof(struct drm_mode_fb_cmd2, modifier);
}"
compile_check_conftest "$CODE" "NV_DRM_FORMAT_MODIFIERS_PRESENT" "" "types"
;;
timespec64)
#
# Determine if struct timespec64 is present
# Added by commit 361a3bf00582 ("time64: Add time64.h header and
# define struct timespec64") in 3.17 (2014-07-16)
#
CODE="
#include <linux/time.h>
struct timespec64 ts64;
"
compile_check_conftest "$CODE" "NV_TIMESPEC64_PRESENT" "" "types"
;;
vmalloc_has_pgprot_t_arg)
#
# Determine if __vmalloc has the 'pgprot' argument.
#
# The third argument to __vmalloc, page protection
# 'pgprot_t prot', was removed by commit 88dca4ca5a93
# (mm: remove the pgprot argument to __vmalloc)
# in v5.8-rc1 (2020-06-01).
CODE="
#include <linux/vmalloc.h>
void conftest_vmalloc_has_pgprot_t_arg(void) {
pgprot_t prot;
(void)__vmalloc(0, 0, prot);
}"
compile_check_conftest "$CODE" "NV_VMALLOC_HAS_PGPROT_T_ARG" "" "types"
;;
mm_has_mmap_lock)
#
# Determine if the 'mm_struct' structure has a 'mmap_lock' field.
#
# Kernel commit da1c55f1b272 ("mmap locking API: rename mmap_sem
# to mmap_lock") replaced the field 'mmap_sem' by 'mmap_lock'
# in v5.8-rc1 (2020-06-08).
CODE="
#include <linux/mm_types.h>
int conftest_mm_has_mmap_lock(void) {
return offsetof(struct mm_struct, mmap_lock);
}"
compile_check_conftest "$CODE" "NV_MM_HAS_MMAP_LOCK" "" "types"
;;
full_name_hash)
#
# Determine how many arguments full_name_hash takes.
#
# Changed by commit 8387ff2577e ("vfs: make the string hashes salt
# the hash") in v4.8 (2016-06-10)
#
echo "$CONFTEST_PREAMBLE
#include <linux/stringhash.h>
void conftest_full_name_hash(void) {
full_name_hash(NULL, NULL, 0);
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "#define NV_FULL_NAME_HASH_ARGUMENT_COUNT 3" | append_conftest "functions"
else
echo "#define NV_FULL_NAME_HASH_ARGUMENT_COUNT 2" | append_conftest "functions"
fi
;;
hlist_for_each_entry)
#
# Determine how many arguments hlist_for_each_entry takes.
#
# Changed by commit b67bfe0d42c ("hlist: drop the node parameter
# from iterators") in v3.9 (2013-02-28)
#
echo "$CONFTEST_PREAMBLE
#include <linux/list.h>
void conftest_hlist_for_each_entry(void) {
struct hlist_head *head;
struct dummy
{
struct hlist_node hlist;
};
struct dummy *pos;
hlist_for_each_entry(pos, head, hlist) {}
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "#define NV_HLIST_FOR_EACH_ENTRY_ARGUMENT_COUNT 3" | append_conftest "functions"
else
echo "#define NV_HLIST_FOR_EACH_ENTRY_ARGUMENT_COUNT 4" | append_conftest "functions"
fi
;;
drm_vma_offset_exact_lookup_locked)
#
# Determine if the drm_vma_offset_exact_lookup_locked() function
# is present.
#
# Added by commit 2225cfe46bcc ("drm/gem: Use kref_get_unless_zero
# for the weak mmap references") in v4.4
#
CODE="
#include <drm/drm_vma_manager.h>
void conftest_drm_vma_offset_exact_lookup_locked(void) {
drm_vma_offset_exact_lookup_locked();
}"
compile_check_conftest "$CODE" "NV_DRM_VMA_OFFSET_EXACT_LOOKUP_LOCKED_PRESENT" "" "functions"
;;
drm_vma_node_is_allowed_has_tag_arg)
#
# Determine if drm_vma_node_is_allowed() has 'tag' arguments of
# 'struct drm_file *' type.
#
# Updated to take 'tag' argument by commit d9a1f0b4eb60 ("drm: use
# drm_file to tag vm-bos") in v4.9
#
CODE="
#include <drm/drm_vma_manager.h>
bool drm_vma_node_is_allowed(struct drm_vma_offset_node *node,
struct drm_file *tag) {
return true;
}"
compile_check_conftest "$CODE" "NV_DRM_VMA_NODE_IS_ALLOWED_HAS_TAG_ARG" | append_conftest "types"
;;
drm_vma_offset_node_has_readonly)
#
# Determine if the 'drm_vma_offset_node' structure has a 'readonly'
# field.
#
# Added by commit 3e977ac6179b ("drm/i915: Prevent writing into a
# read-only object via a GGTT mmap") in v4.19.
#
CODE="
#include <drm/drm_vma_manager.h>
int conftest_drm_vma_offset_node_has_readonly(void) {
return offsetof(struct drm_vma_offset_node, readonly);
}"
compile_check_conftest "$CODE" "NV_DRM_VMA_OFFSET_NODE_HAS_READONLY" "" "types"
;;
pci_enable_atomic_ops_to_root)
# pci_enable_atomic_ops_to_root was added by
# commit 430a23689dea ("PCI: Add pci_enable_atomic_ops_to_root()")
# in v4.16-rc1 (2018-01-05)
#
CODE="
#include <linux/pci.h>
void conftest_pci_enable_atomic_ops_to_root(void) {
pci_enable_atomic_ops_to_root();
}"
compile_check_conftest "$CODE" "NV_PCI_ENABLE_ATOMIC_OPS_TO_ROOT_PRESENT" "" "functions"
;;
kvmalloc)
#
# Determine if kvmalloc() is present
#
# Added by commit a7c3e901a46ff54c016d040847eda598a9e3e653 ("mm:
# introduce kv[mz]alloc helpers") in v4.12 (2017-05-08).
#
CODE="
#include <linux/mm.h>
void conftest_kvmalloc(void){
kvmalloc();
}"
compile_check_conftest "$CODE" "NV_KVMALLOC_PRESENT" "" "functions"
;;
drm_gem_object_put_unlocked)
#
# Determine if the function drm_gem_object_put_unlocked() is present.
#
# In v5.9-rc1, commit 2f4dd13d4bb8 ("drm/gem: add
# drm_gem_object_put helper") removes drm_gem_object_put_unlocked()
# function and replace its definition by transient macro. Commit
# ab15d56e27be ("drm: remove transient
# drm_gem_object_put_unlocked()") finally removes
# drm_gem_object_put_unlocked() macro.
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_DRM_GEM_H_PRESENT)
#include <drm/drm_gem.h>
#endif
void conftest_drm_gem_object_put_unlocked(void) {
drm_gem_object_put_unlocked();
}"
compile_check_conftest "$CODE" "NV_DRM_GEM_OBJECT_PUT_UNLOCK_PRESENT" "" "functions"
;;
drm_display_mode_has_vrefresh)
#
# Determine if the 'drm_display_mode' structure has a 'vrefresh'
# field.
#
# Removed by commit 0425662fdf05 ("drm: Nuke mode->vrefresh") in
# v5.9-rc1.
#
CODE="
#include <drm/drm_modes.h>
int conftest_drm_display_mode_has_vrefresh(void) {
return offsetof(struct drm_display_mode, vrefresh);
}"
compile_check_conftest "$CODE" "NV_DRM_DISPLAY_MODE_HAS_VREFRESH" "types"
;;
drm_driver_master_set_has_int_return_type)
#
# Determine if drm_driver::master_set() returns integer value
#
# Changed to void by commit 907f53200f98 ("drm: vmwgfx: remove
# drm_driver::master_set() return type") in v5.9-rc1.
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_DRM_DRV_H_PRESENT)
#include <drm/drm_drv.h>
#endif
int conftest_drm_driver_master_set_has_int_return_type(struct drm_driver *drv,
struct drm_device *dev, struct drm_file *file_priv, bool from_open) {
return drv->master_set(dev, file_priv, from_open);
}"
compile_check_conftest "$CODE" "NV_DRM_DRIVER_SET_MASTER_HAS_INT_RETURN_TYPE" "" "types"
;;
drm_driver_has_gem_free_object)
#
# Determine if the 'drm_driver' structure has a 'gem_free_object'
# function pointer.
#
# drm_driver::gem_free_object is removed by commit 1a9458aeb8eb
# ("drm: remove drm_driver::gem_free_object") in v5.9-rc1.
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_DRM_DRV_H_PRESENT)
#include <drm/drm_drv.h>
#endif
int conftest_drm_driver_has_gem_free_object(void) {
return offsetof(struct drm_driver, gem_free_object);
}"
compile_check_conftest "$CODE" "NV_DRM_DRIVER_HAS_GEM_FREE_OBJECT" "" "types"
;;
vga_tryget)
#
# Determine if vga_tryget() is present
#
# vga_tryget() was removed by commit f369bc3f9096 ("vgaarb: mark
# vga_tryget static") in v5.9-rc1 (2020-08-01).
#
CODE="
#include <linux/vgaarb.h>
void conftest_vga_tryget(void) {
vga_tryget();
}"
compile_check_conftest "$CODE" "NV_VGA_TRYGET_PRESENT" "" "functions"
;;
pci_channel_state)
#
# Determine if pci_channel_state enum type is present.
#
# pci_channel_state was removed by commit 16d79cd4e23b ("PCI: Use
# 'pci_channel_state_t' instead of 'enum pci_channel_state'") in
# v5.9-rc1 (2020-07-02).
#
CODE="
#include <linux/pci.h>
enum pci_channel_state state;
"
compile_check_conftest "$CODE" "NV_PCI_CHANNEL_STATE_PRESENT" "" "types"
;;
pgprot_decrypted)
#
# Determine if the macro 'pgprot_decrypted()' is present.
#
# Added by commit 21729f81ce8a ("x86/mm: Provide general kernel
# support for memory encryption") in v4.14 (2017-07-18)
CODE="
#include <asm/pgtable.h>
void conftest_pgprot_decrypted(void)
if(pgprot_decrypted()) {}
}"
compile_check_conftest "$CODE" "NV_PGPROT_DECRYPTED_PRESENT" "" "functions"
;;
cc_mkdec)
#
# Determine if cc_mkdec() is present.
#
# cc_mkdec() by commit b577f542f93c ("x86/coco: Add API to handle
# encryption mask) in v5.18-rc1 (2022-02-22).
#
CODE="
#if defined(NV_ASM_COCO_H_PRESENT)
#include <asm/coco.h>
#endif
void conftest_cc_mkdec(void) {
cc_mkdec();
}"
compile_check_conftest "$CODE" "NV_CC_MKDEC_PRESENT" "" "functions"
;;
drm_prime_pages_to_sg_has_drm_device_arg)
#
# Determine if drm_prime_pages_to_sg() has 'dev' argument.
#
# drm_prime_pages_to_sg() is updated to take 'dev' argument by commit
# 707d561f77b5 ("drm: allow limiting the scatter list size.").
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_DRM_PRIME_H_PRESENT)
#include <drm/drm_prime.h>
#endif
struct sg_table *drm_prime_pages_to_sg(struct drm_device *dev,
struct page **pages,
unsigned int nr_pages) {
return 0;
}"
compile_check_conftest "$CODE" "NV_DRM_PRIME_PAGES_TO_SG_HAS_DRM_DEVICE_ARG" "" "types"
;;
drm_driver_has_gem_prime_callbacks)
#
# Determine if drm_driver structure has the GEM and PRIME callback
# function pointers.
#
# The GEM and PRIME callback are removed from drm_driver
# structure, by commit d693def4fd1c ("drm: Remove obsolete GEM and
# PRIME callbacks from struct drm_driver").
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_DRM_DRV_H_PRESENT)
#include <drm/drm_drv.h>
#endif
void conftest_drm_driver_has_gem_and_prime_callbacks(void) {
struct drm_driver drv;
drv.gem_prime_pin = 0;
drv.gem_prime_get_sg_table = 0;
drv.gem_prime_vmap = 0;
drv.gem_prime_vunmap = 0;
drv.gem_vm_ops = 0;
}"
compile_check_conftest "$CODE" "NV_DRM_DRIVER_HAS_GEM_PRIME_CALLBACKS" "" "types"
;;
drm_crtc_atomic_check_has_atomic_state_arg)
#
# Determine if drm_crtc_helper_funcs::atomic_check takes 'state'
# argument of 'struct drm_atomic_state' type.
#
# The commit 29b77ad7b9ca ("drm/atomic: Pass the full state to CRTC
# atomic_check") passed the full atomic state to
# drm_crtc_helper_funcs::atomic_check()
#
# To test the signature of drm_crtc_helper_funcs::atomic_check(),
# declare a function prototype with typeof ::atomic_check(), and then
# define the corresponding function implementation with the expected
# signature. Successful compilation indicates that ::atomic_check()
# has the expected signature.
#
echo "$CONFTEST_PREAMBLE
#include <drm/drm_modeset_helper_vtables.h>
static const struct drm_crtc_helper_funcs *funcs;
typeof(*funcs->atomic_check) conftest_drm_crtc_atomic_check_has_atomic_state_arg;
int conftest_drm_crtc_atomic_check_has_atomic_state_arg(
struct drm_crtc *crtc, struct drm_atomic_state *state) {
return 0;
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "#define NV_DRM_CRTC_ATOMIC_CHECK_HAS_ATOMIC_STATE_ARG" | append_conftest "types"
else
echo "#undef NV_DRM_CRTC_ATOMIC_CHECK_HAS_ATOMIC_STATE_ARG" | append_conftest "types"
fi
;;
drm_gem_object_vmap_has_map_arg)
#
# Determine if drm_gem_object_funcs::vmap takes 'map'
# argument of 'struct dma_buf_map' type.
#
# The commit 49a3f51dfeee ("drm/gem: Use struct dma_buf_map in GEM
# vmap ops and convert GEM backends") update
# drm_gem_object_funcs::vmap to take 'map' argument.
#
CODE="
#include <drm/drm_gem.h>
int conftest_drm_gem_object_vmap_has_map_arg(
struct drm_gem_object *obj, struct dma_buf_map *map) {
return obj->funcs->vmap(obj, map);
}"
compile_check_conftest "$CODE" "NV_DRM_GEM_OBJECT_VMAP_HAS_MAP_ARG" "" "types"
;;
set_close_on_exec)
#
# __set_close_on_exec(() was added by
# commit 1dce27c5aa67 ("Wrap accesses to the fd_sets")
# in v3.4-rc1 (2012-02-19)
#
CODE="
#include <linux/types.h>
#include <linux/fdtable.h>
void conftest_set_close_on_exec(void) {
__set_close_on_exec();
}"
compile_check_conftest "$CODE" "NV_SET_CLOSE_ON_EXEC_PRESENT" "" "functions"
;;
iterate_fd)
#
# iterate_fd() was added by
# commit c3c073f808b2 ("new helper: iterate_fd()")
# in v3.7-rc1 (2012-09-26)
#
CODE="
#include <linux/types.h>
#include <linux/fdtable.h>
void conftest_iterate_fd(void) {
iterate_fd();
}"
compile_check_conftest "$CODE" "NV_ITERATE_FD_PRESENT" "" "functions"
;;
seq_read_iter)
#
# Determine if seq_read_iter() is present
#
# seq_read_iter() was added by commit d4d50710a8b4 ("seq_file:
# add seq_read_iter") in v5.10-rc1 (2020-11-04).
#
CODE="
#include <linux/seq_file.h>
void conftest_seq_read_iter(void) {
seq_read_iter();
}"
compile_check_conftest "$CODE" "NV_SEQ_READ_ITER_PRESENT" "" "functions"
;;
pci_class_multimedia_hd_audio)
#
# Determine if 'PCI_CLASS_MULTIMEDIA_HD_AUDIO' macro is present
# in <linux/pci_ids.h>.
#
# The commit 07f4f97d7b4b ("vga_switcheroo: Use device link for HDA
# controller") has moved 'PCI_CLASS_MULTIMEDIA_HD_AUDIO' macro from
# <sound/hdaudio.h> to <linux/pci_ids.h> in v4.17-rc1 (2018-03-03).
#
CODE="
#include <linux/pci_ids.h>
unsigned int conftest_pci_class_multimedia_hd_audio(void) {
return PCI_CLASS_MULTIMEDIA_HD_AUDIO;
}"
compile_check_conftest "$CODE" "NV_PCI_CLASS_MULTIMEDIA_HD_AUDIO_PRESENT" "" "generic"
;;
sg_page_iter_page)
#
# Determine if sg_page_iter_page() is present
#
# sg_page_iter_page() was added by commit 2db76d7c3c6db
# ("lib/scatterlist: sg_page_iter: support sg lists w/o backing
# pages") in v3.10-rc1 (2013-05-11).
#
CODE="
#include <linux/scatterlist.h>
void conftest_sg_page_iter_page(void) {
sg_page_iter_page();
}"
compile_check_conftest "$CODE" "NV_SG_PAGE_ITER_PAGE_PRESENT" "" "functions"
;;
unsafe_follow_pfn)
#
# Determine if unsafe_follow_pfn() is present.
#
# unsafe_follow_pfn() was added by commit 69bacee7f9ad
# ("mm: Add unsafe_follow_pfn") in v5.13-rc1.
#
CODE="
#include <linux/mm.h>
void conftest_unsafe_follow_pfn(void) {
unsafe_follow_pfn();
}"
compile_check_conftest "$CODE" "NV_UNSAFE_FOLLOW_PFN_PRESENT" "" "functions"
;;
drm_plane_atomic_check_has_atomic_state_arg)
#
# Determine if drm_plane_helper_funcs::atomic_check takes 'state'
# argument of 'struct drm_atomic_state' type.
#
# The commit 7c11b99a8e58 ("drm/atomic: Pass the full state to
# planes atomic_check") passed the full atomic state to
# drm_plane_helper_funcs::atomic_check()
#
# To test the signature of drm_plane_helper_funcs::atomic_check(),
# declare a function prototype with typeof ::atomic_check(), and then
# define the corresponding function implementation with the expected
# signature. Successful compilation indicates that ::atomic_check()
# has the expected signature.
#
echo "$CONFTEST_PREAMBLE
#include <drm/drm_modeset_helper_vtables.h>
static const struct drm_plane_helper_funcs *funcs;
typeof(*funcs->atomic_check) conftest_drm_plane_atomic_check_has_atomic_state_arg;
int conftest_drm_plane_atomic_check_has_atomic_state_arg(
struct drm_plane *plane, struct drm_atomic_state *state) {
return 0;
}" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
echo "#define NV_DRM_PLANE_ATOMIC_CHECK_HAS_ATOMIC_STATE_ARG" | append_conftest "types"
else
echo "#undef NV_DRM_PLANE_ATOMIC_CHECK_HAS_ATOMIC_STATE_ARG" | append_conftest "types"
fi
;;
ib_peer_memory_symbols)
#
# Determine if the following symbols exist in Module.symvers:
# 1. ib_register_peer_memory_client
# 2. ib_unregister_peer_memory_client
# The conftest first checks in the kernel's own Module.symvers in
# the regular path. If the symbols are not found there, it's possible
# that MOFED is installed and check for these symbols in MOFED's
# Module.symvers whose path is different from the kernel's symvers.
#
# Note: KERNELRELEASE and ARCH are defined by Kbuild and automatically
# passed down to conftest.sh as env vars.
MLNX_OFED_KERNEL_DIR=/usr/src/ofa_kernel
VAR_DKMS_SOURCES_DIR=$(test -d /var/lib/dkms/mlnx-ofed-kernel &&
ls -d /var/lib/dkms/mlnx-ofed-kernel/*/build 2>/dev/null)
if check_for_ib_peer_memory_symbols "$OUTPUT" || \
check_for_ib_peer_memory_symbols "$MLNX_OFED_KERNEL_DIR/$ARCH/$KERNELRELEASE" || \
check_for_ib_peer_memory_symbols "$MLNX_OFED_KERNEL_DIR/$KERNELRELEASE" || \
check_for_ib_peer_memory_symbols "$MLNX_OFED_KERNEL_DIR/default" || \
check_for_ib_peer_memory_symbols "$VAR_DKMS_SOURCES_DIR"; then
echo "#define NV_MLNX_IB_PEER_MEM_SYMBOLS_PRESENT" | append_conftest "symbols"
else
echo "#undef NV_MLNX_IB_PEER_MEM_SYMBOLS_PRESENT" | append_conftest "symbols"
fi
;;
add_memory_driver_managed)
#
# Determine if the add_memory_driver_managed function is present
#
# Added by commit 7b7b27214bba ("mm/memory_hotplug: introduce
# add_memory_driver_managed()") in v5.8-rc1 (2020-06-05)
#
CODE="
#include <linux/memory_hotplug.h>
void conftest_add_memory_driver_managed() {
add_memory_driver_managed();
}"
compile_check_conftest "$CODE" "NV_ADD_MEMORY_DRIVER_MANAGED_PRESENT" "" "functions"
;;
add_memory_driver_managed_has_mhp_flags_arg)
#
# Check if add_memory_driver_managed() has mhp_flags arg.
#
# Added by commit b6117199787c ("mm/memory_hotplug: prepare passing flags to
# add_memory() and friends") in v5.10-rc1 (2020-10-16)
#
CODE="
#include <linux/memory_hotplug.h>
int add_memory_driver_managed(int nid, u64 start, u64 size,
const char *resource_name,
mhp_t mhp_flags) {
return 0;
}"
compile_check_conftest "$CODE" "NV_ADD_MEMORY_DRIVER_MANAGED_HAS_MHP_FLAGS_ARG" "" "types"
;;
remove_memory_has_nid_arg)
#
# Check if remove_memory() has nid parameter.
#
# Removed by commit e1c158e4956612e7 ("mm/memory_hotplug: remove nid
# parameter from remove_memory() and friends") in v5.15-rc1 (2021-09-09)
#
CODE="
#include <linux/memory_hotplug.h>
int remove_memory(int nid, u64 start, u64 size) {
return 0;
}"
compile_check_conftest "$CODE" "NV_REMOVE_MEMORY_HAS_NID_ARG" "" "types"
;;
device_property_read_u64)
#
# Determine if the device_property_read_u64 function is present
#
# Added by commit b31384fa5de37a1 ("Driver core: Unified device
# properties interface for platform firmware") in v3.19-rc1 (2014-11-05)
#
CODE="
#include <linux/acpi.h>
void conftest_device_property_read_u64() {
device_property_read_u64();
}"
compile_check_conftest "$CODE" "NV_DEVICE_PROPERTY_READ_U64_PRESENT" "" "functions"
;;
of_property_count_elems_of_size)
#
# Determine if of_property_count_elems_of_size is present
#
# Added by commit 1df09bcof (" Move OF property and graph API from
# base.c to property.c"
#
# Test if linux/of.h header file inclusion is successful or not,
# depending on that check, for of_property_count_elems_of_size
# presence
#
echo "$CONFTEST_PREAMBLE
#include <linux/of.h>
" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
CODE="
#include <linux/of.h>
void conftest_of_property_count_elems_of_size() {
of_property_count_elems_of_size();
}"
compile_check_conftest "$CODE" "NV_OF_PROPERTY_COUNT_ELEMS_OF_SIZE_PRESENT" "" "functions"
else
echo "#undef NV_OF_PROPERTY_COUNT_ELEMS_OF_SIZE_PRESENT" | append_conftest "functions"
fi
;;
of_property_read_variable_u8_array)
#
# Determine if of_property_read_variable_u8_array is present
#
# Added by commit 1df09bcof (" Move OF property and graph API from
# base.c to property.c"
#
# Test if linux/of.h header file inclusion is successful or not,
# depending on that, check for of_property_read_variable_u8_array
# presence
#
echo "$CONFTEST_PREAMBLE
#include <linux/of.h>
" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
CODE="
#include <linux/of.h>
void conftest_of_property_read_variable_u8_array() {
of_property_read_variable_u8_array();
}"
compile_check_conftest "$CODE" "NV_OF_PROPERTY_READ_VARIABLE_U8_ARRAY_PRESENT" "" "functions"
else
echo "#undef NV_OF_PROPERTY_READ_VARIABLE_U8_ARRAY_PRESENT" | append_conftest "functions"
fi
;;
devm_of_platform_populate)
#
# Determine if devm_of_platform_populate() function is present
#
# Added by commit 38b0b21of (add devm_ functions for populate and
# depopulate")
#
CODE="
#if defined(NV_LINUX_OF_PLATFORM_H_PRESENT)
#include <linux/of_platform.h>
#endif
void conftest_devm_of_platform_populate(void)
{
devm_of_platform_populate(NULL, NULL);
}
"
compile_check_conftest "$CODE" "NV_DEVM_OF_PLATFORM_POPULATE_PRESENT" "" "functions"
;;
of_dma_configure)
#
# Determine if of_dma_configure() function is present
#
# Added by commit 591c1eeof ("configure the platform device
# dma parameters")
#
CODE="
#if defined(NV_LINUX_OF_DEVICE_H_PRESENT)
#include <linux/of_device.h>
#endif
void conftest_of_dma_configure(void)
{
of_dma_configure();
}
"
compile_check_conftest "$CODE" "NV_OF_DMA_CONFIGURE_PRESENT" "" "functions"
;;
icc_get)
#
# Determine if icc_get() function is present
#
# Added by commit 11f1cec ("interconnect: Add generic on-chip
# interconnect API")
#
CODE="
#if defined(NV_LINUX_INTERCONNECT_H_PRESENT)
#include <linux/interconnect.h>
#endif
void conftest_icc_get(void)
{
icc_get();
}
"
compile_check_conftest "$CODE" "NV_ICC_GET_PRESENT" "" "functions"
;;
icc_set_bw)
#
# Determine if icc_set_bw() function is present
#
# Added by commit 11f1cec ("interconnect: Add generic on-chip
# interconnect API")
#
CODE="
#if defined(NV_LINUX_INTERCONNECT_H_PRESENT)
#include <linux/interconnect.h>
#endif
void conftest_icc_set_bw(void)
{
icc_set_bw();
}
"
compile_check_conftest "$CODE" "NV_ICC_SET_BW_PRESENT" "" "functions"
;;
icc_put)
#
# Determine if icc_put() function is present
#
# Added by commit 11f1cec ("interconnect: Add generic on-chip
# interconnect API")
#
CODE="
#if defined(NV_LINUX_INTERCONNECT_H_PRESENT)
#include <linux/interconnect.h>
#endif
void conftest_icc_put(void)
{
icc_put();
}
"
compile_check_conftest "$CODE" "NV_ICC_PUT_PRESENT" "" "functions"
;;
i2c_new_client_device)
#
# Determine if i2c_new_client_device() function is present
#
# Added by commit 390fd04i2c ("remove deprecated i2c_new_device API")
#
CODE="
#include <linux/i2c.h>
void conftest_i2c_new_client_device(void)
{
i2c_new_client_device();
}
"
compile_check_conftest "$CODE" "NV_I2C_NEW_CLIENT_DEVICE_PRESENT" "" "functions"
;;
i2c_unregister_device)
#
# Determine if i2c_unregister_device() function is present
#
# Added by commit 9c1600ei2c ("Add i2c_board_info and i2c_new_device()")
#
CODE="
#include <linux/i2c.h>
void conftest_i2c_unregister_device(void)
{
i2c_unregister_device();
}
"
compile_check_conftest "$CODE" "NV_I2C_UNREGISTER_DEVICE_PRESENT" "" "functions"
;;
of_get_named_gpio)
#
# Determine if of_get_named_gpio() function is present
#
# Added by commit a6b0919 ("of/gpio: Add new method for getting gpios
# under different property names")
#
CODE="
#if defined(NV_LINUX_OF_GPIO_H_PRESENT)
#include <linux/of_gpio.h>
#endif
void conftest_of_get_named_gpio(void)
{
of_get_named_gpio();
}
"
compile_check_conftest "$CODE" "NV_OF_GET_NAME_GPIO_PRESENT" "" "functions"
;;
devm_gpio_request_one)
#
# Determine if devm_gpio_request_one() function is present
#
# Added by commit 09d71ff (gpiolib: Implement devm_gpio_request_one()")
#
CODE="
#if defined(NV_LINUX_GPIO_H_PRESENT)
#include <linux/gpio.h>
#endif
void conftest_devm_gpio_request_one(void)
{
devm_gpio_request_one();
}
"
compile_check_conftest "$CODE" "NV_DEVM_GPIO_REQUEST_ONE_PRESENT" "" "functions"
;;
gpio_direction_input)
#
# Determine if gpio_direction_input() function is present
#
# Added by commit c7caf86 (gpio: remove gpio_ensure_requested()")
#
CODE="
#if defined(NV_LINUX_GPIO_H_PRESENT)
#include <linux/gpio.h>
#endif
void conftest_gpio_direction_input(void)
{
gpio_direction_input();
}
"
compile_check_conftest "$CODE" "NV_GPIO_DIRECTION_INPUT_PRESENT" "" "functions"
;;
gpio_direction_output)
#
# Determine if gpio_direction_output() function is present
#
# Added by commit c7caf86 (gpio: remove gpio_ensure_requested()")
#
CODE="
#if defined(NV_LINUX_GPIO_H_PRESENT)
#include <linux/gpio.h>
#endif
void conftest_gpio_direction_output(void)
{
gpio_direction_output();
}
"
compile_check_conftest "$CODE" "NV_GPIO_DIRECTION_OUTPUT_PRESENT" "" "functions"
;;
gpio_get_value)
#
# Determine if gpio_get_value() function is present
#
# Added by commit 7563bbf ("gpiolib/arches: Centralise bolierplate
# asm/gpio.h")
#
CODE="
#if defined(NV_LINUX_GPIO_H_PRESENT)
#include <linux/gpio.h>
#endif
void conftest_gpio_get_value(void)
{
gpio_get_value();
}
"
compile_check_conftest "$CODE" "NV_GPIO_GET_VALUE_PRESENT" "" "functions"
;;
gpio_set_value)
#
# Determine if gpio_set_value() function is present
#
# Added by commit 7563bbf ("gpiolib/arches: Centralise bolierplate
# asm/gpio.h")
#
CODE="
#if defined(NV_LINUX_GPIO_H_PRESENT)
#include <linux/gpio.h>
#endif
void conftest_gpio_set_value(void)
{
gpio_set_value();
}
"
compile_check_conftest "$CODE" "NV_GPIO_SET_VALUE_PRESENT" "" "functions"
;;
gpio_to_irq)
#
# Determine if gpio_to_irq() function is present
#
# Added by commit 7563bbf ("gpiolib/arches: Centralise bolierplate
# asm/gpio.h")
#
CODE="
#if defined(NV_LINUX_GPIO_H_PRESENT)
#include <linux/gpio.h>
#endif
void conftest_gpio_to_irq(void)
{
gpio_to_irq();
}
"
compile_check_conftest "$CODE" "NV_GPIO_TO_IRQ_PRESENT" "" "functions"
;;
migrate_vma_setup)
#
# Determine if migrate_vma_setup() function is present
#
# migrate_vma_setup() function was added by commit
# a7d1f22bb74f32cf3cd93f52776007e161f1a738 ("mm: turn migrate_vma
# upside down) in v5.4.
# (2019-08-20).
CODE="
#include <linux/migrate.h>
int conftest_migrate_vma_setup(void) {
migrate_vma_setup();
}"
compile_check_conftest "$CODE" "NV_MIGRATE_VMA_SETUP_PRESENT" "" "functions"
;;
migrate_vma_added_flags)
#
# Determine if migrate_vma structure has flags
#
# flags were added to struct migrate_vma by commit
# 5143192cd410c4fc83be09a2e73423765aee072b ("mm/migrate: add a flags
# parameter to_migrate_vma) in v5.9.
# (2020-07-28).
CODE="
#include <linux/migrate.h>
int conftest_migrate_vma_added_flags(void) {
return offsetof(struct migrate_vma, flags);
}"
compile_check_conftest "$CODE" "NV_MIGRATE_VMA_FLAGS_PRESENT" "" "types"
;;
drm_device_has_pdev)
#
# Determine if the 'drm_device' structure has a 'pdev' field.
#
# Removed by commit b347e04452ff ("drm: Remove pdev field from
# struct drm_device") in v5.14-rc1.
#
CODE="
#if defined(NV_DRM_DRMP_H_PRESENT)
#include <drm/drmP.h>
#endif
#if defined(NV_DRM_DRM_DEVICE_H_PRESENT)
#include <drm/drm_device.h>
#endif
int conftest_drm_device_has_pdev(void) {
return offsetof(struct drm_device, pdev);
}"
compile_check_conftest "$CODE" "NV_DRM_DEVICE_HAS_PDEV" "" "types"
;;
make_device_exclusive_range)
#
# Determine if the make_device_exclusive_range() function is present
#
# make_device_exclusive_range() function was added by commit
# b756a3b5e7ead ("mm: device exclusive memory access") in v5.14
# (2021-06-30).
CODE="
#include <linux/rmap.h>
int conftest_make_device_exclusive_range(void) {
make_device_exclusive_range();
}"
compile_check_conftest "$CODE" "NV_MAKE_DEVICE_EXCLUSIVE_RANGE_PRESENT" "" "functions"
;;
ioasid_get)
#
# Determine if ioasid_get() function is present
#
# ioasid_get() function was added by commit
# cb4789b0d19ff231ce9f73376a023341300aed96 (iommu/ioasid: Add ioasidreferences) in v5.11.
# (2020-11-23).
CODE="
#if defined(NV_LINUX_IOASID_H_PRESENT)
#include <linux/ioasid.h>
#endif
void conftest_ioasid_get(void) {
ioasid_get();
}"
compile_check_conftest "$CODE" "NV_IOASID_GET_PRESENT" "" "functions"
;;
drm_crtc_state_has_no_vblank)
#
# Determine if the 'drm_crtc_state' structure has 'no_vblank'.
#
# drm_crtc_state::no_vblank was added by commit b25c60af7a877
# ("drm/crtc: Add a generic infrastructure to fake VBLANK events")
# in 4.18.0-rc3 (2018-07-03).
#
CODE="
#include <drm/drm_crtc.h>
void conftest_drm_crtc_state_has_no_vblank(void) {
struct drm_crtc_state foo;
(void)foo.no_vblank;
}"
compile_check_conftest "$CODE" "NV_DRM_CRTC_STATE_HAS_NO_VBLANK" "" "types"
;;
drm_mode_config_has_allow_fb_modifiers)
#
# Determine if the 'drm_mode_config' structure has
# an 'allow_fb_modifiers' field.
#
# an 'allow_fb_modifiers' field in the 'drm_mode_config' structure,
# is added by commit e3eb3250d84e ("drm: add support for
# tiled/compressed/etc modifier in addfb2") in v4.1, and removed by
# commit 3d082157a242 ("drm: remove allow_fb_modifiers") in v5.18-rc1.
#
# The 'struct drm_mode_config' definition, is moved to
# drm_mode_config.h file by commit 28575f165d36 ("drm: Extract
# drm_mode_config.[hc]") in v4.10.
#
CODE="$CONFTEST_PREAMBLE
#if defined(NV_DRM_DRM_MODE_CONFIG_H_PRESENT)
#include <drm/drm_mode_config.h>
#else
#include <drm/drm_crtc.h>
#endif
int conftest_drm_mode_config_has_allow_fb_modifiers(void) {
return offsetof(struct drm_mode_config, allow_fb_modifiers);
}"
compile_check_conftest "$CODE" "NV_DRM_MODE_CONFIG_HAS_ALLOW_FB_MODIFIERS" "" "types"
;;
dma_set_mask_and_coherent)
#
# Determine if dma_set_mask_and_coherent function is present.
# Added by commit 4aa806b771d1 ("DMA-API: provide a helper to set both DMA
# and coherent DMA masks") in v3.13 (2013-06-26).
#
CODE="
#include <linux/dma-mapping.h>
void conftest_dma_set_mask_and_coherent(void) {
dma_set_mask_and_coherent();
}"
compile_check_conftest "$CODE" "NV_DMA_SET_MASK_AND_COHERENT_PRESENT" "" "functions"
;;
drm_has_hdr_output_metadata)
#
# Determine if drm_mode.h has 'hdr_output_metadata' structure.
#
# struct hdr_output_metadata was added by commit fbb5d0353c62d
# ("drm: Add HDR source metadata property") in 5.1.0-rc5
# (2019-05-16)
#
CODE="
#include <drm/drm_mode.h>
void conftest_drm_has_hdr_output_metadata(void) {
struct hdr_output_metadata foo;
(void)foo;
}"
compile_check_conftest "$CODE" "NV_DRM_HAS_HDR_OUTPUT_METADATA" "" "types"
;;
uts_release)
#
# print the kernel's UTS_RELEASE string.
#
echo "#include <generated/utsrelease.h>
UTS_RELEASE" > conftest$$.c
$CC $CFLAGS -E -P conftest$$.c
rm -f conftest$$.c
;;
acpi_bus_get_device)
#
# Determine if the acpi_bus_get_device() function is present
#
# acpi_bus_get_device() was removed by commit ac2a3feefad5
# ("ACPI: bus: Eliminate acpi_bus_get_device()") in
# v5.18-rc2 (2022-04-05).
#
CODE="
#include <linux/acpi.h>
int conftest_acpi_bus_get_device(void) {
return acpi_bus_get_device();
}"
compile_check_conftest "$CODE" "NV_ACPI_BUS_GET_DEVICE_PRESENT" "" "functions"
;;
# When adding a new conftest entry, please use the correct format for
# specifying the relevant upstream Linux kernel commit.
#
# <function> was added|removed|etc by commit <sha> ("<commit message")
# in <kernel-version> (<commit date>).
*)
# Unknown test name given
echo "Error: unknown conftest '$1' requested" >&2
exit 1
;;
esac
}
case "$5" in
cc_sanity_check)
#
# Check if the selected compiler can create object files
# in the current environment.
#
VERBOSE=$6
echo "int cc_sanity_check(void) {
return 0;
}" > conftest$$.c
$CC -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ ! -f conftest$$.o ]; then
if [ "$VERBOSE" = "full_output" ]; then
echo "";
fi
if [ "$CC" != "cc" ]; then
echo "The C compiler '$CC' does not appear to be able to"
echo "create object files. Please make sure you have "
echo "your Linux distribution's libc development package"
echo "installed and that '$CC' is a valid C compiler";
echo "name."
else
echo "The C compiler '$CC' does not appear to be able to"
echo "create executables. Please make sure you have "
echo "your Linux distribution's gcc and libc development"
echo "packages installed."
fi
if [ "$VERBOSE" = "full_output" ]; then
echo "";
echo "*** Failed CC sanity check. Bailing out! ***";
echo "";
fi
exit 1
else
rm -f conftest$$.o
exit 0
fi
;;
cc_version_check)
#
# Verify that the same compiler major and minor version is
# used for the kernel and kernel module. A mismatch condition is
# not considered fatal, so this conftest returns a success status
# code, even if it fails. Failure of the test can be distinguished
# by testing for empty (success) versus non-empty (failure) output.
#
# Some gcc version strings that have proven problematic for parsing
# in the past:
#
# gcc.real (GCC) 3.3 (Debian)
# gcc-Version 3.3 (Debian)
# gcc (GCC) 3.1.1 20020606 (Debian prerelease)
# version gcc 3.2.3
#
# As of this writing, GCC uses a version number as x.y.z and below
# are the typical version strings seen with various distributions.
# gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23)
# gcc version 4.8.5 20150623 (Red Hat 4.8.5-39) (GCC)
# gcc (GCC) 8.3.1 20190507 (Red Hat 8.3.1-4)
# gcc (GCC) 10.2.1 20200723 (Red Hat 10.2.1-1)
# gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0
# gcc (Ubuntu 7.5.0-3ubuntu1~16.04) 7.5.0
# gcc (Debian 8.3.0-6) 8.3.0
# aarch64-linux-gcc.br_real (Buildroot 2020.08-14-ge5a2a90) 9.3.0, GNU ld (GNU Binutils) 2.33.1
#
# In order to extract GCC version correctly for version strings
# like the last one above, we first check for x.y.z and if that
# fails, we fallback to x.y format.
VERBOSE=$6
kernel_compile_h=$OUTPUT/include/generated/compile.h
if [ ! -f ${kernel_compile_h} ]; then
# The kernel's compile.h file is not present, so there
# isn't a convenient way to identify the compiler version
# used to build the kernel.
IGNORE_CC_MISMATCH=1
fi
if [ -n "$IGNORE_CC_MISMATCH" ]; then
exit 0
fi
kernel_cc_string=`cat ${kernel_compile_h} | \
grep LINUX_COMPILER | cut -f 2 -d '"'`
kernel_cc_version=`echo ${kernel_cc_string} | grep -o '[0-9]\+\.[0-9]\+\.[0-9]\+' | head -n 1`
if [ -z "${kernel_cc_version}" ]; then
kernel_cc_version=`echo ${kernel_cc_string} | grep -o '[0-9]\+\.[0-9]\+' | head -n 1`
fi
kernel_cc_major=`echo ${kernel_cc_version} | cut -d '.' -f 1`
kernel_cc_minor=`echo ${kernel_cc_version} | cut -d '.' -f 2`
echo "
#if (__GNUC__ != ${kernel_cc_major}) || (__GNUC_MINOR__ != ${kernel_cc_minor})
#error \"cc version mismatch\"
#endif
" > conftest$$.c
$CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
rm -f conftest$$.c
if [ -f conftest$$.o ]; then
rm -f conftest$$.o
exit 0;
else
#
# The gcc version check failed
#
if [ "$VERBOSE" = "full_output" ]; then
echo "";
echo "Warning: Compiler version check failed:";
echo "";
echo "The major and minor number of the compiler used to";
echo "compile the kernel:";
echo "";
echo "${kernel_cc_string}";
echo "";
echo "does not match the compiler used here:";
echo "";
$CC --version
echo "";
echo "It is recommended to set the CC environment variable";
echo "to the compiler that was used to compile the kernel.";
echo ""
echo "To skip the test and silence this warning message, set";
echo "the IGNORE_CC_MISMATCH environment variable to \"1\".";
echo "However, mixing compiler versions between the kernel";
echo "and kernel modules can result in subtle bugs that are";
echo "difficult to diagnose.";
echo "";
echo "*** Failed CC version check. ***";
echo "";
elif [ "$VERBOSE" = "just_msg" ]; then
echo "Warning: The kernel was built with ${kernel_cc_string}, but the" \
"current compiler version is `$CC --version | head -n 1`.";
fi
exit 0;
fi
;;
xen_sanity_check)
#
# Check if the target kernel is a Xen kernel. If so, exit, since
# the RM doesn't currently support Xen.
#
VERBOSE=$6
if [ -n "$IGNORE_XEN_PRESENCE" -o -n "$VGX_BUILD" ]; then
exit 0
fi
test_xen
if [ "$XEN_PRESENT" != "0" ]; then
echo "The kernel you are installing for is a Xen kernel!";
echo "";
echo "The NVIDIA driver does not currently support Xen kernels. If ";
echo "you are using a stock distribution kernel, please install ";
echo "a variant of this kernel without Xen support; if this is a ";
echo "custom kernel, please install a standard Linux kernel. Then ";
echo "try installing the NVIDIA kernel module again.";
echo "";
if [ "$VERBOSE" = "full_output" ]; then
echo "*** Failed Xen sanity check. Bailing out! ***";
echo "";
fi
exit 1
else
exit 0
fi
;;
preempt_rt_sanity_check)
#
# Check if the target kernel has the PREEMPT_RT patch set applied. If
# so, exit, since the RM doesn't support this configuration.
#
VERBOSE=$6
if [ -n "$IGNORE_PREEMPT_RT_PRESENCE" ]; then
exit 0
fi
if test_configuration_option CONFIG_PREEMPT_RT; then
PREEMPT_RT_PRESENT=1
elif test_configuration_option CONFIG_PREEMPT_RT_FULL; then
PREEMPT_RT_PRESENT=1
fi
if [ "$PREEMPT_RT_PRESENT" != "0" ]; then
echo "The kernel you are installing for is a PREEMPT_RT kernel!";
echo "";
echo "The NVIDIA driver does not support real-time kernels. If you ";
echo "are using a stock distribution kernel, please install ";
echo "a variant of this kernel that does not have the PREEMPT_RT ";
echo "patch set applied; if this is a custom kernel, please ";
echo "install a standard Linux kernel. Then try installing the ";
echo "NVIDIA kernel module again.";
echo "";
if [ "$VERBOSE" = "full_output" ]; then
echo "*** Failed PREEMPT_RT sanity check. Bailing out! ***";
echo "";
fi
exit 1
else
exit 0
fi
;;
patch_check)
#
# Check for any "official" patches that may have been applied and
# construct a description table for reporting purposes.
#
PATCHES=""
for PATCH in patch-*.h; do
if [ -f $PATCH ]; then
echo "#include \"$PATCH\""
PATCHES="$PATCHES "`echo $PATCH | sed -s 's/patch-\(.*\)\.h/\1/'`
fi
done
echo "static struct {
const char *short_description;
const char *description;
} __nv_patches[] = {"
for i in $PATCHES; do
echo "{ \"$i\", NV_PATCH_${i}_DESCRIPTION },"
done
echo "{ NULL, NULL } };"
exit 0
;;
compile_tests)
#
# Run a series of compile tests to determine the set of interfaces
# and features available in the target kernel.
#
shift 5
CFLAGS=$1
shift
for i in $*; do compile_test $i; done
for file in conftest*.d; do
rm -f $file > /dev/null 2>&1
done
exit 0
;;
dom0_sanity_check)
#
# Determine whether running in DOM0.
#
VERBOSE=$6
if [ -n "$VGX_BUILD" ]; then
if [ -f /proc/xen/capabilities ]; then
if [ "`cat /proc/xen/capabilities`" == "control_d" ]; then
exit 0
fi
else
echo "The kernel is not running in DOM0.";
echo "";
if [ "$VERBOSE" = "full_output" ]; then
echo "*** Failed DOM0 sanity check. Bailing out! ***";
echo "";
fi
fi
exit 1
fi
;;
vgpu_kvm_sanity_check)
#
# Determine whether we are running a vGPU on KVM host.
#
VERBOSE=$6
iommu=CONFIG_VFIO_IOMMU_TYPE1
mdev=CONFIG_VFIO_MDEV
kvm=CONFIG_KVM_VFIO
VFIO_IOMMU_PRESENT=0
VFIO_MDEV_PRESENT=0
KVM_PRESENT=0
if [ -n "$VGX_KVM_BUILD" ]; then
if (test_configuration_option ${iommu} || test_configuration_option ${iommu}_MODULE); then
VFIO_IOMMU_PRESENT=1
fi
if (test_configuration_option ${mdev} || test_configuration_option ${mdev}_MODULE); then
VFIO_MDEV_PRESENT=1
fi
if (test_configuration_option ${kvm} || test_configuration_option ${kvm}_MODULE); then
KVM_PRESENT=1
fi
if [ "$VFIO_IOMMU_PRESENT" != "0" ] &&
[ "$VFIO_MDEV_PRESENT" != "0" ] &&
[ "$KVM_PRESENT" != "0" ] ; then
exit 0
else
echo "Below CONFIG options are missing on the kernel for installing";
echo "NVIDIA vGPU driver on KVM host";
if [ "$VFIO_IOMMU_PRESENT" = "0" ]; then
echo "CONFIG_VFIO_IOMMU_TYPE1";
fi
if [ "$VFIO_MDEV_PRESENT" = "0" ]; then
echo "CONFIG_VFIO_MDEV";
fi
if [ "$KVM_PRESENT" = "0" ]; then
echo "CONFIG_KVM";
fi
echo "Please install the kernel with above CONFIG options set, then";
echo "try installing again";
echo "";
if [ "$VERBOSE" = "full_output" ]; then
echo "*** Failed vGPU on KVM sanity check. Bailing out! ***";
echo "";
fi
fi
exit 1
else
exit 0
fi
;;
test_configuration_option)
#
# Check to see if the given config option is set.
#
OPTION=$6
test_configuration_option $OPTION
exit $?
;;
get_configuration_option)
#
# Get the value of the given config option.
#
OPTION=$6
get_configuration_option $OPTION
exit $?
;;
guess_module_signing_hash)
#
# Determine the best cryptographic hash to use for module signing,
# to the extent that is possible.
#
HASH=$(get_configuration_option CONFIG_MODULE_SIG_HASH)
if [ $? -eq 0 ] && [ -n $HASH ]; then
echo $HASH
exit 0
else
for SHA in 512 384 256 224 1; do
if test_configuration_option CONFIG_MODULE_SIG_SHA$SHA; then
echo sha$SHA
exit 0
fi
done
fi
exit 1
;;
test_kernel_headers)
#
# Check for the availability of certain kernel headers
#
CFLAGS=$6
test_headers
for file in conftest*.d; do
rm -f $file > /dev/null 2>&1
done
exit $?
;;
build_cflags)
#
# Generate CFLAGS for use in the compile tests
#
build_cflags
echo $CFLAGS
exit 0
;;
module_symvers_sanity_check)
#
# Check whether Module.symvers exists and contains at least one
# EXPORT_SYMBOL* symbol from vmlinux
#
if [ -n "$IGNORE_MISSING_MODULE_SYMVERS" ]; then
exit 0
fi
TAB=' '
if [ -f "$OUTPUT/Module.symvers" ] && \
grep -e "^[^${TAB}]*${TAB}[^${TAB}]*${TAB}\+vmlinux" \
"$OUTPUT/Module.symvers" >/dev/null 2>&1; then
exit 0
fi
echo "The Module.symvers file is missing, or does not contain any"
echo "symbols exported from the kernel. This could cause the NVIDIA"
echo "kernel modules to be built against a configuration that does"
echo "not accurately reflect the actual target kernel."
echo "The Module.symvers file check can be disabled by setting the"
echo "environment variable IGNORE_MISSING_MODULE_SYMVERS to 1."
exit 1
;;
esac
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