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| author | Danilo Krummrich <dakr@kernel.org> | 2026-08-13 18:52:04 +0200 |
|---|---|---|
| committer | Danilo Krummrich <dakr@kernel.org> | 2026-08-17 01:41:36 +0200 |
| commit | f146c7bc85a51f95c05e0f8173d484eb301ece78 (patch) | |
| tree | 07296ae54ed6551492b0c609dc0f5463f61f89ca /arch/x86/tools/Makefile | |
| download | linux-stable-f146c7bc85a51f95c05e0f8173d484eb301ece78.tar.gz linux-stable-f146c7bc85a51f95c05e0f8173d484eb301ece78.zip | |
PCI: Add pci_irq_type() to query the allocated interrupt typegrafted
Add a helper that returns PCI_IRQ_MSIX, PCI_IRQ_MSI, or PCI_IRQ_INTX
based on the interrupt type the PCI core selected after
pci_alloc_irq_vectors().
Several drivers already open-code this check against pdev->msix_enabled
and pdev->msi_enabled, or even open code this helper [1].
A common helper avoids the duplication and keeps drivers from accessing
the bitfield directly (see also [2]).
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: John Hubbard <jhubbard@nvidia.com>
Link: https://elixir.bootlin.com/linux/v7.1/source/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c#L196 [1]
Inspired-by: John Hubbard <jhubbard@nvidia.com>
Link: https://lore.kernel.org/all/DKKG2QM3YJYB.Z2H2B2UXJ75N@kernel.org/ [2]
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://patch.msgid.link/20260813165234.620555-5-dakr@kernel.org
[ Add missing pci_irq_type() stub for CONFIG_PCI=n. ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Diffstat (limited to 'arch/x86/tools/Makefile')
| -rw-r--r-- | arch/x86/tools/Makefile | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/x86/tools/Makefile b/arch/x86/tools/Makefile new file mode 100644 index 000000000..39a183fff --- /dev/null +++ b/arch/x86/tools/Makefile @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: GPL-2.0 +PHONY += posttest + +ifneq ($(findstring 1, $(KBUILD_VERBOSE)),) + posttest_verbose = -v +else + posttest_verbose = +endif + +ifeq ($(CONFIG_64BIT),y) + posttest_64bit = -y +else + posttest_64bit = -n +endif + +reformatter = $(srctree)/arch/x86/tools/objdump_reformat.awk +chkobjdump = $(srctree)/arch/x86/tools/chkobjdump.awk + +quiet_cmd_posttest = TEST $@ + cmd_posttest = $(OBJDUMP) -d -j .text $(objtree)/vmlinux | $(AWK) -f $(reformatter) | $(obj)/insn_decoder_test $(posttest_64bit) $(posttest_verbose) + +quiet_cmd_sanitytest = TEST $@ + cmd_sanitytest = $(obj)/insn_sanity $(posttest_64bit) -m 1000000 + +posttest: $(obj)/insn_decoder_test vmlinux $(obj)/insn_sanity + $(call cmd,posttest) + $(call cmd,sanitytest) + +hostprogs += insn_decoder_test insn_sanity + +# -I needed for generated C source and C source which in the kernel tree. +HOSTCFLAGS_insn_decoder_test.o := -Wall -I$(srctree)/tools/arch/x86/lib/ -I$(srctree)/tools/arch/x86/include/ -I$(objtree)/arch/x86/lib/ + +HOSTCFLAGS_insn_sanity.o := -Wall -I$(srctree)/tools/arch/x86/lib/ -I$(srctree)/tools/arch/x86/include/ -I$(objtree)/arch/x86/lib/ + +# Dependencies are also needed. +$(obj)/insn_decoder_test.o: $(srctree)/tools/arch/x86/lib/insn.c $(srctree)/tools/arch/x86/lib/inat.c $(srctree)/tools/arch/x86/include/asm/inat_types.h $(srctree)/tools/arch/x86/include/asm/inat.h $(srctree)/tools/arch/x86/include/asm/insn.h $(objtree)/arch/x86/lib/inat-tables.c + +$(obj)/insn_sanity.o: $(srctree)/tools/arch/x86/lib/insn.c $(srctree)/tools/arch/x86/lib/inat.c $(srctree)/tools/arch/x86/include/asm/inat_types.h $(srctree)/tools/arch/x86/include/asm/inat.h $(srctree)/tools/arch/x86/include/asm/insn.h $(objtree)/arch/x86/lib/inat-tables.c + +HOST_EXTRACFLAGS += -I$(srctree)/tools/include -I$(srctree)/include/uapi \ + -I$(srctree)/arch/$(SUBARCH)/include/uapi + +hostprogs += relocs vdso2c +relocs-objs := relocs_32.o relocs_64.o relocs_common.o + +always-y := $(hostprogs) + +PHONY += $(hostprogs) +$(hostprogs): %: $(obj)/% + @: |