#!/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 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_ 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$$.o CFLAGS="$CFLAGS -mfentry -DCC_USING_FENTRY" fi fi } CONFTEST_PREAMBLE="#include \"conftest/headers.h\" #if defined(NV_LINUX_KCONFIG_H_PRESENT) #include #endif #if defined(NV_GENERATED_AUTOCONF_H_PRESENT) #include #else #include #endif #if defined(CONFIG_XEN) && \ defined(CONFIG_XEN_INTERFACE_VERSION) && !defined(__XEN_INTERFACE_VERSION__) #define __XEN_INTERFACE_VERSION__ CONFIG_XEN_INTERFACE_VERSION #endif #if defined(CONFIG_KASAN) && defined(CONFIG_ARM64) #if defined(CONFIG_KASAN_SW_TAGS) #define KASAN_SHADOW_SCALE_SHIFT 4 #else #define KASAN_SHADOW_SCALE_SHIFT 3 #endif #endif" test_configuration_option() { # # Check to see if the given configuration option is defined # get_configuration_option $1 >/dev/null 2>&1 return $? } set_configuration() { # # Set a specific configuration option. This function is called to always # enable a configuration, in order to verify whether the test code for that # configuration is no longer required and the corresponding # conditionally-compiled code in the driver can be removed. # DEF="$1" if [ "$3" = "" ] then VAL="" CAT="$2" else VAL="$2" CAT="$3" fi echo "#define ${DEF} ${VAL}" | append_conftest "${CAT}" } unset_configuration() { # # Un-set a specific configuration option. This function is called to # always disable a configuration, in order to verify whether the test # code for that configuration is no longer required and the corresponding # conditionally-compiled code in the driver can be removed. # DEF="$1" CAT="$2" echo "#undef ${DEF}" | append_conftest "${CAT}" } compile_check_conftest() { # # Compile the current conftest C file and check+output the result # CODE="$1" DEF="$2" VAL="$3" CAT="$4" echo "$CONFTEST_PREAMBLE $CODE" > conftest$$.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 #if defined(NV_ASM_SET_MEMORY_H_PRESENT) #if defined(NV_ASM_PGTABLE_TYPES_H_PRESENT) #include #endif #include #else #include #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 #if defined(NV_ASM_SET_MEMORY_H_PRESENT) #if defined(NV_ASM_PGTABLE_TYPES_H_PRESENT) #include #endif #include #else #include #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 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 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 #if defined(NV_ASM_SET_MEMORY_H_PRESENT) #if defined(NV_ASM_PGTABLE_TYPES_H_PRESENT) #include #endif #include #else #include #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 #if defined(NV_ASM_SET_MEMORY_H_PRESENT) #if defined(NV_ASM_PGTABLE_TYPES_H_PRESENT) #include #endif #include #else #include #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 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 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 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 #include #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 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 void conftest_cpuhp_setup_state(void) { cpuhp_setup_state(); }" > conftest$$.c compile_check_conftest "$CODE" "NV_CPUHP_SETUP_STATE_PRESENT" "" "functions" ;; ioremap_cache) # # Determine if the ioremap_cache() function is present. # It does not exist on all architectures. # CODE=" #include void conftest_ioremap_cache(void) { ioremap_cache(); }" compile_check_conftest "$CODE" "NV_IOREMAP_CACHE_PRESENT" "" "functions" ;; ioremap_wc) # # Determine if the ioremap_wc() function is present. # It does not exist on all architectures. # CODE=" #include void conftest_ioremap_wc(void) { ioremap_wc(); }" compile_check_conftest "$CODE" "NV_IOREMAP_WC_PRESENT" "" "functions" ;; file_operations) # 'ioctl' field removed by commit b19dd42faf41 # ("bkl: Remove locked .ioctl file operation") in v2.6.36 CODE=" #include int conftest_file_operations(void) { return offsetof(struct file_operations, ioctl); }" compile_check_conftest "$CODE" "NV_FILE_OPERATIONS_HAS_IOCTL" "" "types" ;; sg_alloc_table) # # sg_alloc_table_from_pages added by commit efc42bc98058 # ("scatterlist: add sg_alloc_table_from_pages function") in v3.6 # CODE=" #include void conftest_sg_alloc_table_from_pages(void) { sg_alloc_table_from_pages(); }" compile_check_conftest "$CODE" "NV_SG_ALLOC_TABLE_FROM_PAGES_PRESENT" "" "functions" ;; efi_enabled) # # Added in 2.6.12 as a variable # # Determine if the efi_enabled symbol is present (as a variable), # or if the efi_enabled() function is present and how many # arguments it takes. # # Converted from a variable to a function by commit 83e68189745a # ("efi: Make 'efi_enabled' a function to query EFI facilities") # in v3.8 # echo "$CONFTEST_PREAMBLE #if defined(NV_LINUX_EFI_H_PRESENT) #include #endif int conftest_efi_enabled(void) { return efi_enabled(0); }" > conftest$$.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 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 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 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 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 #include #include 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 #include 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 #include 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 #include 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 #include 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 #include 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 #include 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 #include 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 #include 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 #include 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 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 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 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 #endif #if defined(NV_DRM_DRM_DRV_H_PRESENT) #include #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 #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 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 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 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 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 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 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 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 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 #include #include #include #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 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 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 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 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 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 ") # in v5.10-rc1 (2020-09-22), moved get_dma_ops() function # prototype from to . # CODE=" #if defined(NV_LINUX_DMA_MAP_OPS_H_PRESENT) #include #else #include #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 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 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 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 #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 " > 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 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 " > conftest$$.c $CC $CFLAGS -c conftest$$.c > /dev/null 2>&1 rm -f conftest$$.c if [ -f conftest$$.o ]; then rm -f conftest$$.o echo "#define NV_LINUX_OF_H_USABLE" | append_conftest "generic" CODE=" #include void conftest_of_find_node_by_phandle() { of_find_node_by_phandle(); }" compile_check_conftest "$CODE" "NV_OF_FIND_NODE_BY_PHANDLE_PRESENT" "" "functions" else echo "#undef NV_LINUX_OF_H_USABLE" | append_conftest "generic" echo "#undef NV_OF_FIND_NODE_BY_PHANDLE_PRESENT" | append_conftest "functions" fi ;; of_node_to_nid) # # Determine if of_node_to_nid is present # # Dummy implementation added by commit 559e2b7ee7a1 # ("of: Provide default of_node_to_nid() implementation.") in v2.6.36 # # Real implementation added by commit 298535c00a2c # ("of, numa: Add NUMA of binding implementation.") in v4.7 # # Test if linux/of.h header file inclusion is successful or not and # define/undefine NV_LINUX_OF_H_USABLE depending upon status of inclusion. # echo "$CONFTEST_PREAMBLE #include " > conftest$$.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 #include #include void conftest_of_node_to_nid() { of_node_to_nid(); }" compile_check_conftest "$CODE" "NV_OF_NODE_TO_NID_PRESENT" "" "functions" else echo "#undef NV_LINUX_OF_H_USABLE" | append_conftest "generic" echo "#undef NV_OF_NODE_TO_NID_PRESENT" | append_conftest "functions" fi ;; pnv_pci_get_npu_dev) # # Determine if the pnv_pci_get_npu_dev function is present. # # Added by commit 5d2aa710e697 ("powerpc/powernv: Add support # for Nvlink NPUs") in v4.5 # CODE=" #include void conftest_pnv_pci_get_npu_dev() { pnv_pci_get_npu_dev(); }" compile_check_conftest "$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 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$$.o else echo "#define NV_KERNEL_WRITE_PRESENT" | append_conftest "function" # # Determine the pos argument type, which was changed by # commit e13ec939e96b1 (fs: fix kernel_write prototype) on # 9/1/2017. # echo "$CONFTEST_PREAMBLE #include ssize_t kernel_write(struct file *file, const void *buf, size_t count, loff_t *pos) { return 0; }" > conftest$$.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 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$$.o else echo "#undef NV_KERNEL_READ_HAS_POINTER_POS_ARG" | append_conftest "function" fi ;; vm_insert_pfn_prot) # # Determine if vm_insert_pfn_prot function is present # # Added by commit 1745cbc5d0de ("mm: Add vm_insert_pfn_prot()") in # v3.16.59 # # Removed by commit f5e6d1d5f8f3 ("mm: introduce # vmf_insert_pfn_prot()") in v4.20. # CODE=" #include void conftest_vm_insert_pfn_prot() { vm_insert_pfn_prot(); }" compile_check_conftest "$CODE" "NV_VM_INSERT_PFN_PROT_PRESENT" "" "functions" ;; vmf_insert_pfn_prot) # # Determine if vmf_insert_pfn_prot function is present # # Added by commit f5e6d1d5f8f3 ("mm: introduce # vmf_insert_pfn_prot()") in v4.20. # CODE=" #include void conftest_vmf_insert_pfn_prot() { vmf_insert_pfn_prot(); }" compile_check_conftest "$CODE" "NV_VMF_INSERT_PFN_PROT_PRESENT" "" "functions" ;; drm_atomic_available) # # Determine if the DRM atomic modesetting subsystem is usable # # Added by commit 036ef5733ba4 # ("drm/atomic: Allow drivers to subclass drm_atomic_state, v3") in # v4.2 (2018-05-18). # # Make conftest more robust by adding test for # drm_atomic_set_mode_prop_for_crtc(), this function added by # commit 955f3c334f0f ("drm/atomic: Add MODE_ID property") in v4.2 # (2015-05-25). If the DRM atomic modesetting subsystem is # back ported to Linux kernel older than v4.2, then commit # 955f3c334f0f must be back ported in order to get NVIDIA-DRM KMS # support. # Commit 72fdb40c1a4b ("drm: extract drm_atomic_uapi.c") in v4.20 # (2018-09-05), moved drm_atomic_set_mode_prop_for_crtc() function # prototype from drm/drm_atomic.h to drm/drm_atomic_uapi.h. # echo "$CONFTEST_PREAMBLE #if defined(NV_DRM_DRMP_H_PRESENT) #include #endif #include #if !defined(CONFIG_DRM) && !defined(CONFIG_DRM_MODULE) #error DRM not enabled #endif void conftest_drm_atomic_modeset_available(void) { size_t a; a = offsetof(struct drm_mode_config_funcs, atomic_state_alloc); }" > conftest$$.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 #endif #include #if defined(NV_DRM_DRM_ATOMIC_UAPI_H_PRESENT) #include #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 #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 #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 #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 #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 #endif #if defined(NV_DRM_DRM_DRV_H_PRESENT) #include #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 #endif #if defined(NV_DRM_DRM_DRV_H_PRESENT) #include #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 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 #endif #if defined(NV_DRM_DRM_CRTC_H_PRESENT) #include #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 #endif #if defined(NV_DRM_DRM_ENCODER_H_PRESENT) #include #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 #endif #if defined(NV_DRM_DRM_PLANE_H_PRESENT) #include #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$$.o echo "#define NV_DRM_UNIVERSAL_PLANE_INIT_HAS_FORMAT_MODIFIERS_ARG" | append_conftest "types" echo "#define NV_DRM_UNIVERSAL_PLANE_INIT_HAS_NAME_ARG" | append_conftest "types" else echo "#undef NV_DRM_UNIVERSAL_PLANE_INIT_HAS_FORMAT_MODIFIERS_ARG" | append_conftest "types" echo "$CONFTEST_PREAMBLE #if defined(NV_DRM_DRMP_H_PRESENT) #include #endif #if defined(NV_DRM_DRM_PLANE_H_PRESENT) #include #endif int conftest_drm_universal_plane_init_has_name_arg(void) { return drm_universal_plane_init( NULL, /* struct drm_device *dev */ NULL, /* struct drm_plane *plane */ 0, /* unsigned long possible_crtcs */ NULL, /* const struct drm_plane_funcs *funcs */ NULL, /* const uint32_t *formats */ 0, /* unsigned int format_count */ DRM_PLANE_TYPE_PRIMARY, NULL); /* const char *name */ }" > conftest$$.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 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 #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 #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 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 #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 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 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$$.o echo "#define NV_WAIT_ON_BIT_LOCK_ARGUMENT_COUNT 4" | append_conftest "functions" return fi echo "#error wait_on_bit_lock() conftest failed!" | append_conftest "functions" ;; bitmap_clear) # # Determine if the bitmap_clear function is present # # Added by commit c1a2a962a2ad ("bitmap: introduce bitmap_set, # bitmap_clear, bitmap_find_next_zero_area") in v2.6.33 # (2009-12-15) # CODE=" #include void conftest_bitmap_clear() { bitmap_clear(); }" compile_check_conftest "$CODE" "NV_BITMAP_CLEAR_PRESENT" "" "functions" ;; pci_stop_and_remove_bus_device) # # Determine if the pci_stop_and_remove_bus_device() function is present. # # Added by commit 210647af897a ("PCI: Rename pci_remove_bus_device # to pci_stop_and_remove_bus_device") in v3.4 (2012-02-25) # CODE=" #include #include void conftest_pci_stop_and_remove_bus_device() { pci_stop_and_remove_bus_device(); }" compile_check_conftest "$CODE" "NV_PCI_STOP_AND_REMOVE_BUS_DEVICE_PRESENT" "" "functions" ;; pci_remove_bus_device) # # Determine if the pci_remove_bus_device() function is present. # Added before Linux-2.6.12-rc2 2005-04-16 # Because we support builds on non-PCI platforms, we still need # to check for this function's presence. # CODE=" #include #include void conftest_pci_remove_bus_device() { pci_remove_bus_device(); }" compile_check_conftest "$CODE" "NV_PCI_REMOVE_BUS_DEVICE_PRESENT" "" "functions" ;; drm_helper_mode_fill_fb_struct | drm_helper_mode_fill_fb_struct_has_const_mode_cmd_arg) # # Determine if the drm_helper_mode_fill_fb_struct function takes # 'dev' argument. # # The drm_helper_mode_fill_fb_struct() has been updated to # take 'dev' parameter by commit a3f913ca9892 ("drm: Pass 'dev' # to drm_helper_mode_fill_fb_struct()") in v4.11 (2016-12-14) # echo "$CONFTEST_PREAMBLE #include void drm_helper_mode_fill_fb_struct(struct drm_device *dev, struct drm_framebuffer *fb, const struct drm_mode_fb_cmd2 *mode_cmd) { return; }" > conftest$$.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 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$$.o else echo "#undef NV_DRM_HELPER_MODE_FILL_FB_STRUCT_HAS_CONST_MODE_CMD_ARG" | append_conftest "function" fi fi ;; mm_context_t) # # Determine if the 'mm_context_t' data type is present # and if it has an 'id' member. # It does not exist on all architectures. # echo "$CONFTEST_PREAMBLE #include int conftest_mm_context_t(void) { return offsetof(mm_context_t, id); }" > conftest$$.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 int conftest_pci_dev_ats_enabled_t(void) { return ((struct pci_dev *)0)->ats_enabled; }" compile_check_conftest "$CODE" "NV_PCI_DEV_HAS_ATS_ENABLED" "" "types" ;; mt_device_gre) # # Determine if MT_DEVICE_GRE flag is present. # # MT_DEVICE_GRE flag is removed by commit 58cc6b72a21274 # ("arm64: mm: Remove unused support for Device-GRE memory type") in v5.14-rc1 # (2021-06-01). # CODE=" #include unsigned int conftest_mt_device_gre(void) { return MT_DEVICE_GRE; }" compile_check_conftest "$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 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$$.o return fi # Conftest #2: Check if get_user_pages has gup_flags instead of # write and force parameters. And that gup doesn't accept a # task_struct and mm_struct as its first arguments. # Return if available. # Fall through to conftest #3 on failure. echo "$CONFTEST_PREAMBLE #include long get_user_pages(unsigned long start, unsigned long nr_pages, unsigned int gup_flags, struct page **pages, struct vm_area_struct **vmas) { return 0; }" > conftest$$.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 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$$.o return fi echo "#define NV_GET_USER_PAGES_HAS_WRITE_AND_FORCE_ARGS" | append_conftest "functions" echo "#define NV_GET_USER_PAGES_HAS_TASK_STRUCT" | append_conftest "functions" return ;; get_user_pages_remote) # # Determine if the function get_user_pages_remote() is # present and has write/force/locked/tsk parameters. # # get_user_pages_remote() was added by commit 1e9877902dc7 # ("mm/gup: Introduce get_user_pages_remote()") in v4.6 (2016-02-12) # # get_user_pages[_remote]() write/force parameters # replaced with gup_flags by commits 768ae309a961 ("mm: replace # get_user_pages() write/force parameters with gup_flags") and # commit 9beae1ea8930 ("mm: replace get_user_pages_remote() # write/force parameters with gup_flags") in v4.9 (2016-10-13) # # get_user_pages_remote() added 'locked' parameter by # commit 5b56d49fc31d ("mm: add locked parameter to # get_user_pages_remote()") in v4.10 (2016-12-14) # # get_user_pages_remote() removed 'tsk' parameter by # commit 64019a2e467a ("mm/gup: remove task_struct pointer for # all gup code") in v5.9-rc1 (2020-08-11). # # conftest #1: check if get_user_pages_remote() is available # return if not available. # Fall through to conftest #2 if it is present # echo "$CONFTEST_PREAMBLE #include void conftest_get_user_pages_remote(void) { get_user_pages_remote(); }" > conftest$$.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 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$$.o return fi echo "#undef NV_GET_USER_PAGES_REMOTE_HAS_WRITE_AND_FORCE_ARGS" | append_conftest "functions" # # conftest #3: check if get_user_pages_remote() has locked argument # Return if these arguments are present. Fall through to conftest #4 # if these args are absent. # echo "$CONFTEST_PREAMBLE #include long get_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, unsigned long nr_pages, unsigned int gup_flags, struct page **pages, struct vm_area_struct **vmas, int *locked) { return 0; }" > conftest$$.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 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$$.o else echo "#define NV_GET_USER_PAGES_REMOTE_HAS_TSK_ARG" | append_conftest "functions" echo "#undef NV_GET_USER_PAGES_REMOTE_HAS_LOCKED_ARG" | append_conftest "functions" fi ;; usleep_range) # # Determine if the function usleep_range() is present. # # Added by commit 5e7f5a178bba ("timer: Added usleep_range timer") # in v2.6.36 (2010-08-04) # CODE=" #include void conftest_usleep_range(void) { usleep_range(); }" compile_check_conftest "$CODE" "NV_USLEEP_RANGE_PRESENT" "" "functions" ;; radix_tree_empty) # # Determine if the function radix_tree_empty() is present. # # Added by commit e9256efcc8e3 ("radix-tree: introduce # radix_tree_empty") in v4.7 (2016-05-20) # CODE=" #include int conftest_radix_tree_empty(void) { radix_tree_empty(); }" compile_check_conftest "$CODE" "NV_RADIX_TREE_EMPTY_PRESENT" "" "functions" ;; drm_gem_object_lookup) # # Determine the number of arguments of drm_gem_object_lookup(). # # First argument of type drm_device removed by commit # a8ad0bd84f98 ("drm: Remove unused drm_device from # drm_gem_object_lookup()") in v4.7 (2016-05-09) # echo "$CONFTEST_PREAMBLE #if defined(NV_DRM_DRMP_H_PRESENT) #include #endif #if defined(NV_DRM_DRM_GEM_H_PRESENT) #include #endif void conftest_drm_gem_object_lookup(void) { drm_gem_object_lookup(NULL, NULL, 0); }" > conftest$$.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 #endif void conftest_drm_master_drop_has_from_release_arg(struct drm_driver *drv) { drv->master_drop(NULL, NULL, false); }" compile_check_conftest "$CODE" "NV_DRM_MASTER_DROP_HAS_FROM_RELEASE_ARG" "" "types" ;; drm_atomic_state_ref_counting) # # Determine if functions drm_atomic_state_get/put() are # present. # # Added by commit 0853695c3ba4 ("drm: Add reference counting to # drm_atomic_state") in v4.10 (2016-10-14) # CODE=" #if defined(NV_DRM_DRM_ATOMIC_H_PRESENT) #include #endif void conftest_drm_atomic_state_get(void) { drm_atomic_state_get(); }" compile_check_conftest "$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 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 #include #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$$.o return fi echo "#define NV_PNV_NPU2_INIT_CONTEXT_PRESENT" | append_conftest "functions" # Check the callback signature echo "$CONFTEST_PREAMBLE #if defined(NV_ASM_POWERNV_H_PRESENT) #include #include #endif struct npu_context *pnv_npu2_init_context(struct pci_dev *gpdev, unsigned long flags, void (*cb)(struct npu_context *, void *), void *priv) { return NULL; }" > conftest$$.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 #if defined(NV_ASM_PROM_H_PRESENT) #include #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 "$CODE" "NV_OF_GET_IBM_CHIP_ID_PRESENT" "" "functions" ;; drm_driver_unload_has_int_return_type) # # Determine if drm_driver::unload() returns integer value # # Changed to void by commit 11b3c20bdd15 ("drm: Change the return # type of the unload hook to void") in v4.11 (2017-01-06) # CODE=" #if defined(NV_DRM_DRMP_H_PRESENT) #include #endif int conftest_drm_driver_unload_has_int_return_type(struct drm_driver *drv) { return drv->unload(NULL /* dev */); }" compile_check_conftest "$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 $1 | cut -f5- -d_) ;; drm_atomic_helper_crtc_destroy_state_has_crtc_arg) # # Determine if __drm_atomic_helper_crtc_destroy_state() has 'crtc' # argument. # # 'crtc' argument removed by commit ec2dc6a0fe38 ("drm: Drop crtc # argument from __drm_atomic_helper_crtc_destroy_state") in v4.7 # (2016-05-09) # CODE=" #if defined(NV_DRM_DRM_ATOMIC_HELPER_H_PRESENT) #include #endif void conftest_drm_atomic_helper_crtc_destroy_state_has_crtc_arg(void) { __drm_atomic_helper_crtc_destroy_state(NULL, NULL); }" compile_check_conftest "$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 #endif void conftest_drm_atomic_helper_plane_destroy_state_has_plane_arg(void) { __drm_atomic_helper_plane_destroy_state(NULL, NULL); }" compile_check_conftest "$CODE" "NV_DRM_ATOMIC_HELPER_PLANE_DESTROY_STATE_HAS_PLANE_ARG" "" "types" ;; drm_atomic_helper_connector_dpms) # # Determine if the function drm_atomic_helper_connector_dpms() is present. # # Removed by commit 7d902c05b480 ("drm: Nuke # drm_atomic_helper_connector_dpms") in v4.14 (2017-07-25) # CODE=" #if defined(NV_DRM_DRM_ATOMIC_HELPER_H_PRESENT) #include #endif void conftest_drm_atomic_helper_connector_dpms(void) { drm_atomic_helper_connector_dpms(); }" compile_check_conftest "$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 int conftest_get_backlight_device_by_name(void) { return get_backlight_device_by_name(); }" compile_check_conftest "$CODE" "NV_GET_BACKLIGHT_DEVICE_BY_NAME_PRESENT" "" "functions" ;; timer_setup) # # Determine if the function timer_setup() is present. # # Added by commit 686fef928bba ("timer: Prepare to change timer # callback argument type") in v4.14 (2017-09-28) # CODE=" #include int conftest_timer_setup(void) { return timer_setup(); }" compile_check_conftest "$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 #include 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 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$$.o echo "#define NV_RADIX_TREE_REPLACE_SLOT_ARGUMENT_COUNT 2" | append_conftest "functions" return fi echo "$CONFTEST_PREAMBLE #include void conftest_radix_tree_replace_slot(void) { radix_tree_replace_slot(NULL, NULL, NULL); }" > conftest$$.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 void kthread_create_on_node_conftest(void) { (void)kthread_create_on_node(); }" compile_check_conftest "$CODE" "NV_KTHREAD_CREATE_ON_NODE_PRESENT" "" "functions" ;; cpumask_of_node) # # Determine whether cpumask_of_node is available. # # ARM support for cpumask_of_node() lagged until commit 1a2db300348b # ("arm64, numa: Add NUMA support for arm64 platforms.") in v4.7 # (2016-04-08) # CODE=" #include void conftest_cpumask_of_node(void) { (void)cpumask_of_node(); }" compile_check_conftest "$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 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 "$CODE" "NV_DRM_MODE_OBJECT_FIND_HAS_FILE_PRIV_ARG" | append_conftest "types" ;; pci_enable_msix_range) # # Determine if the pci_enable_msix_range() function is present. # # Added by commit 302a2523c277 ("PCI/MSI: Add # pci_enable_msi_range() and pci_enable_msix_range()") in v3.14 # (2013-12-30) # CODE=" #include void conftest_pci_enable_msix_range(void) { pci_enable_msix_range(); }" compile_check_conftest "$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 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 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$$.o echo "#define NV_DMA_BUF_EXPORT_ARGUMENT_COUNT 1" | append_conftest "functions" return fi echo "$CONFTEST_PREAMBLE #include struct dma_buf* conftest_dma_buf_export(void) { return dma_buf_export(NULL, NULL, 0, 0); }" > conftest$$.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 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$$.o echo "#define NV_DMA_BUF_EXPORT_ARGUMENT_COUNT 5" | append_conftest "functions" return fi echo "#error dma_buf_export() conftest failed!" | append_conftest "functions" ;; dma_buf_ops_has_kmap) # # Determine if .kmap exists in dma_buf_ops. # In some kernels, this is a mandatory callback. # # Added by commit fc13020e086b # ("dma-buf: add support for kernel cpu access") in v3.4 (2012-03-20) # echo "$CONFTEST_PREAMBLE #include int conftest_dma_buf_ops_has_kmap(void) { return offsetof(struct dma_buf_ops, kmap); } int conftest_dma_buf_ops_has_kunmap(void) { return offsetof(struct dma_buf_ops, kunmap); }" > conftest$$.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 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$$.o return else echo "#undef NV_DMA_BUF_OPS_HAS_KMAP_ATOMIC" | append_conftest "types" return fi ;; dma_buf_ops_has_map) # # Determine if .map exists in dma_buf_ops. # In some kernels, this is a mandatory callback. # # Added by commit f9b67f0014cb # ("dma-buf: Rename dma-ops to prevent conflict with kunmap_atomic macro") # in v4.12 (2017-04-19) # # Removed as a mandatory callback by commit f82aab2d521e # ("dma-buf: Remove requirement for ops->map() from dma_buf_export") # in v4.20 (2018-08-07) # # Completely removed from dma-buf by commit 4337ebbbbda3 # ("dma-buf: Remove kernel map/unmap hooks") in v5.6 (2019-11-18) # echo "$CONFTEST_PREAMBLE #include int conftest_dma_buf_ops_has_map(void) { return offsetof(struct dma_buf_ops, map); } int conftest_dma_buf_ops_has_unmap(void) { return offsetof(struct dma_buf_ops, unmap); }" > conftest$$.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 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$$.o return else echo "#undef NV_DMA_BUF_OPS_HAS_MAP_ATOMIC" | append_conftest "types" return fi ;; dma_buf_has_dynamic_attachment) # # Determine if the function dma_buf_attachment_is_dynamic() # is present. # # Added by commit: 15fd552d186c # ("dma-buf: change DMA-buf locking convention v3") in v5.5 (2018-07-03) # echo "$CONFTEST_PREAMBLE #include bool conftest_dma_buf_attachment_is_dynamic(void) { return dma_buf_attachment_is_dynamic(NULL); }" > conftest$$.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 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 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 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 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 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 #endif #if defined(NV_DRM_DRM_FRAMEBUFFER_H_PRESENT) #include #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 #endif #if defined(NV_DRM_DRM_GEM_H_PRESENT) #include #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 #endif #if defined(NV_DRM_DRM_DRV_H_PRESENT) #include #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 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 #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 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 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 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 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 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 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 " > 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 void conftest_of_find_matching_node() { of_find_matching_node(); }" compile_check_conftest "$CODE" "NV_OF_FIND_MATCHING_NODE_PRESENT" "" "functions" else echo "#undef NV_LINUX_OF_H_USABLE" | append_conftest "generic" echo "#undef NV_OF_FIND_MATCHING_NODE_PRESENT" | append_conftest "functions" fi ;; dma_direct_map_resource) # # Determine whether dma_is_direct() exists. # # dma_is_direct() was added by commit 356da6d0cde3 ("dma-mapping: # bypass indirect calls for dma-direct") in 5.1 (2018-12-06). # # If dma_is_direct() does exist, then we assume that # dma_direct_map_resource() exists. Both functions were added # as part of the same patchset. # # The presence of dma_is_direct() and dma_direct_map_resource() # means that dma_direct can perform DMA mappings itself. # CODE=" #include void conftest_dma_is_direct(void) { dma_is_direct(); }" compile_check_conftest "$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 #elif defined(NV_SOC_TEGRA_FUSE_H_PRESENT) #include #endif void conftest_tegra_get_platform(void) { tegra_get_platform(0); } " compile_check_conftest "$CODE" "NV_TEGRA_GET_PLATFORM_PRESENT" "" "functions" ;; tegra_bpmp_send_receive) # # Determine if tegra_bpmp_send_receive() function is present # CODE=" #if defined NV_SOC_TEGRA_TEGRA_BPMP_H_PRESENT #include #endif int conftest_tegra_bpmp_send_receive( int mrq, void *ob_data, int ob_sz, void *ib_data, int ib_sz) { return tegra_bpmp_send_receive(mrq, ob_data, ob_sz, ib_data, ib_sz); } " compile_check_conftest "$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 #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 "$CODE" "NV_DRM_ALPHA_BLENDING_AVAILABLE" "" "generic" ;; drm_rotation_available) # # Determine if the DRM subsystem supports rotation. # # drm_plane_create_rotation_property() was added on 2016-09-26 by # d138dd3c0c70979215f3184cf36f95875e37932e (drm: Add support for # optional per-plane rotation property) in linux kernel. Presence # of it is sufficient to say that DRM subsystem support rotation. # CODE=" #if defined(NV_DRM_DRM_BLEND_H_PRESENT) #include #endif void conftest_drm_rotation_available(void) { drm_plane_create_rotation_property(); }" compile_check_conftest "$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 #endif #if defined(NV_DRM_DRM_DRV_H_PRESENT) #include #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 #endif #if defined(NV_DRM_CONNECTOR_H_PRESENT) #include #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 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 #endif #if defined(NV_DRM_DRM_FOURCC_H_PRESENT) #include #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 #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 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 #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 #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 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 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 #include 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 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 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 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 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 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 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 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 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 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 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 #endif #if defined(NV_DRM_DRM_GEM_H_PRESENT) #include #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 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 #endif #if defined(NV_DRM_DRM_DRV_H_PRESENT) #include #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 #endif #if defined(NV_DRM_DRM_DRV_H_PRESENT) #include #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 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 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 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 #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 #endif #if defined(NV_DRM_DRM_PRIME_H_PRESENT) #include #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 #endif #if defined(NV_DRM_DRM_DRV_H_PRESENT) #include #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 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 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 "$CODE" "NV_DRM_GEM_OBJECT_VMAP_HAS_MAP_ARG" "" "types" ;; set_close_on_exec) # # __set_close_on_exec(() was added by # commit 1dce27c5aa67 ("Wrap accesses to the fd_sets") # in v3.4-rc1 (2012-02-19) # CODE=" #include #include void conftest_set_close_on_exec(void) { __set_close_on_exec(); }" compile_check_conftest "$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 #include void conftest_iterate_fd(void) { iterate_fd(); }" compile_check_conftest "$CODE" "NV_ITERATE_FD_PRESENT" "" "functions" ;; seq_read_iter) # # Determine if seq_read_iter() is present # # seq_read_iter() was added by commit d4d50710a8b4 ("seq_file: # add seq_read_iter") in v5.10-rc1 (2020-11-04). # CODE=" #include void conftest_seq_read_iter(void) { seq_read_iter(); }" compile_check_conftest "$CODE" "NV_SEQ_READ_ITER_PRESENT" "" "functions" ;; pci_class_multimedia_hd_audio) # # Determine if 'PCI_CLASS_MULTIMEDIA_HD_AUDIO' macro is present # in . # # The commit 07f4f97d7b4b ("vga_switcheroo: Use device link for HDA # controller") has moved 'PCI_CLASS_MULTIMEDIA_HD_AUDIO' macro from # to in v4.17-rc1 (2018-03-03). # CODE=" #include unsigned int conftest_pci_class_multimedia_hd_audio(void) { return PCI_CLASS_MULTIMEDIA_HD_AUDIO; }" compile_check_conftest "$CODE" "NV_PCI_CLASS_MULTIMEDIA_HD_AUDIO_PRESENT" "" "generic" ;; sg_page_iter_page) # # Determine if sg_page_iter_page() is present # # sg_page_iter_page() was added by commit 2db76d7c3c6db # ("lib/scatterlist: sg_page_iter: support sg lists w/o backing # pages") in v3.10-rc1 (2013-05-11). # CODE=" #include void conftest_sg_page_iter_page(void) { sg_page_iter_page(); }" compile_check_conftest "$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 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 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 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 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 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 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 " > 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 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 " > 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 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 #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 #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 #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 #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 #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 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 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 #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 #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 #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 #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 #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 #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 #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 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 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 #endif #if defined(NV_DRM_DRM_DEVICE_H_PRESENT) #include #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 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 #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 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 #else #include #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 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 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 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 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. # # was added|removed|etc by commit (" (). *) # 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