83d7384f8d
This adds support for Multi-Function General Purpose Timers. It detects the available timers during southbridge init, and provides an API for allocating and setting the timers. They're higher resolution than the standard PIT, so the MFGPTs come in handy for quite a few things. Note that we never clobber the timers that the BIOS might have opted to use; we just check for unused timers. Signed-off-by: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Andres Salomon <dilinger@debian.org> Cc: Andi Kleen <ak@suse.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
86 lines
3.3 KiB
Text
86 lines
3.3 KiB
Text
#
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# Makefile for the linux kernel.
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#
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extra-y := head_32.o init_task_32.o vmlinux.lds
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obj-y := process_32.o signal_32.o entry_32.o traps_32.o irq_32.o \
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ptrace_32.o time_32.o ioport_32.o ldt_32.o setup_32.o i8259_32.o sys_i386_32.o \
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pci-dma_32.o i386_ksyms_32.o i387_32.o bootflag.o e820_32.o\
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quirks.o i8237.o topology.o alternative.o i8253_32.o tsc_32.o
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obj-$(CONFIG_STACKTRACE) += stacktrace.o
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obj-y += cpu/
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obj-y += acpi/
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obj-$(CONFIG_X86_BIOS_REBOOT) += reboot_32.o
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obj-$(CONFIG_MCA) += mca_32.o
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obj-$(CONFIG_X86_MSR) += msr.o
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obj-$(CONFIG_X86_CPUID) += cpuid.o
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obj-$(CONFIG_MICROCODE) += microcode.o
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obj-$(CONFIG_APM) += apm_32.o
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obj-$(CONFIG_X86_SMP) += smp_32.o smpboot_32.o tsc_sync.o
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obj-$(CONFIG_SMP) += smpcommon_32.o
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obj-$(CONFIG_X86_TRAMPOLINE) += trampoline_32.o
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obj-$(CONFIG_X86_MPPARSE) += mpparse_32.o
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obj-$(CONFIG_X86_LOCAL_APIC) += apic_32.o nmi_32.o
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obj-$(CONFIG_X86_IO_APIC) += io_apic_32.o
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obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups_32.o
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obj-$(CONFIG_KEXEC) += machine_kexec_32.o relocate_kernel_32.o crash_32.o
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obj-$(CONFIG_CRASH_DUMP) += crash_dump_32.o
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obj-$(CONFIG_X86_NUMAQ) += numaq_32.o
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obj-$(CONFIG_X86_SUMMIT_NUMA) += summit_32.o
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obj-$(CONFIG_KPROBES) += kprobes_32.o
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obj-$(CONFIG_MODULES) += module_32.o
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obj-y += sysenter_32.o vsyscall_32.o
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obj-$(CONFIG_ACPI_SRAT) += srat_32.o
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obj-$(CONFIG_EFI) += efi_32.o efi_stub_32.o
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obj-$(CONFIG_DOUBLEFAULT) += doublefault_32.o
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obj-$(CONFIG_VM86) += vm86_32.o
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obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
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obj-$(CONFIG_HPET_TIMER) += hpet_32.o
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obj-$(CONFIG_K8_NB) += k8.o
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obj-$(CONFIG_MGEODE_LX) += geode_32.o mfgpt_32.o
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obj-$(CONFIG_VMI) += vmi_32.o vmiclock_32.o
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obj-$(CONFIG_PARAVIRT) += paravirt_32.o
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obj-y += pcspeaker.o
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obj-$(CONFIG_SCx200) += scx200_32.o
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# vsyscall_32.o contains the vsyscall DSO images as __initdata.
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# We must build both images before we can assemble it.
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# Note: kbuild does not track this dependency due to usage of .incbin
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$(obj)/vsyscall_32.o: $(obj)/vsyscall-int80_32.so $(obj)/vsyscall-sysenter_32.so
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targets += $(foreach F,int80 sysenter,vsyscall-$F.o vsyscall-$F.so)
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targets += vsyscall-note_32.o vsyscall_32.lds
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# The DSO images are built using a special linker script.
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quiet_cmd_syscall = SYSCALL $@
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cmd_syscall = $(CC) -m elf_i386 -nostdlib $(SYSCFLAGS_$(@F)) \
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-Wl,-T,$(filter-out FORCE,$^) -o $@
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export CPPFLAGS_vsyscall_32.lds += -P -C -U$(ARCH)
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vsyscall-flags = -shared -s -Wl,-soname=linux-gate.so.1 \
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$(call ld-option, -Wl$(comma)--hash-style=sysv)
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SYSCFLAGS_vsyscall-sysenter_32.so = $(vsyscall-flags)
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SYSCFLAGS_vsyscall-int80_32.so = $(vsyscall-flags)
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$(obj)/vsyscall-int80_32.so $(obj)/vsyscall-sysenter_32.so: \
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$(obj)/vsyscall-%.so: $(src)/vsyscall_32.lds \
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$(obj)/vsyscall-%.o $(obj)/vsyscall-note_32.o FORCE
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$(call if_changed,syscall)
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# We also create a special relocatable object that should mirror the symbol
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# table and layout of the linked DSO. With ld -R we can then refer to
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# these symbols in the kernel code rather than hand-coded addresses.
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extra-y += vsyscall-syms.o
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$(obj)/built-in.o: $(obj)/vsyscall-syms.o
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$(obj)/built-in.o: ld_flags += -R $(obj)/vsyscall-syms.o
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SYSCFLAGS_vsyscall-syms.o = -r
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$(obj)/vsyscall-syms.o: $(src)/vsyscall_32.lds \
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$(obj)/vsyscall-sysenter_32.o $(obj)/vsyscall-note_32.o FORCE
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$(call if_changed,syscall)
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