obj-$(CONFIG_RAID6_PQ) += raid6_pq.o
raid6_pq-y += algos.o recov.o tables.o int1.o int2.o int4.o \
int8.o int16.o int32.o
raid6_pq-$(CONFIG_X86) += recov_ssse3.o recov_avx2.o mmx.o sse1.o sse2.o avx2.o avx512.o recov_avx512.o
raid6_pq-$(CONFIG_ALTIVEC) += altivec1.o altivec2.o altivec4.o altivec8.o
raid6_pq-$(CONFIG_KERNEL_MODE_NEON) += neon.o neon1.o neon2.o neon4.o neon8.o
raid6_pq-$(CONFIG_TILEGX) += tilegx8.o
raid6_pq-$(CONFIG_S390) += s390vx8.o recov_s390xc.o
hostprogs-y += mktables
quiet_cmd_unroll = UNROLL $@
cmd_unroll = $(AWK) -f$(srctree)/$(src)/unroll.awk -vN=$(UNROLL) \
< $< > $@ || ( rm -f $@ && exit 1 )
ifeq ($(CONFIG_ALTIVEC),y)
altivec_flags := -maltivec $(call cc-option,-mabi=altivec)
endif
# The GCC option -ffreestanding is required in order to compile code containing
# ARM/NEON intrinsics in a non C99-compliant environment (such as the kernel)
ifeq ($(CONFIG_KERNEL_MODE_NEON),y)
NEON_FLAGS := -ffreestanding
ifeq ($(ARCH),arm)
NEON_FLAGS += -mfloat-abi=softfp -mfpu=neon
endif
ifeq ($(ARCH),arm64)
CFLAGS_REMOVE_neon1.o += -mgeneral-regs-only
CFLAGS_REMOVE_neon2.o += -mgeneral-regs-only
CFLAGS_REMOVE_neon4.o += -mgeneral-regs-only
CFLAGS_REMOVE_neon8.o += -mgeneral-regs-only
endif
endif
targets += int1.c
$(obj)/int1.c: UNROLL := 1
$(obj)/int1.c: $(src)/int.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
targets += int2.c
$(obj)/int2.c: UNROLL := 2
$(obj)/int2.c: $(src)/int.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
targets += int4.c
$(obj)/int4.c: UNROLL := 4
$(obj)/int4.c: $(src)/int.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
targets += int8.c
$(obj)/int8.c: UNROLL := 8
$(obj)/int8.c: $(src)/int.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
targets += int16.c
$(obj)/int16.c: UNROLL := 16
$(obj)/int16.c: $(src)/int.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
targets += int32.c
$(obj)/int32.c: UNROLL := 32
$(obj)/int32.c: $(src)/int.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_altivec1.o += $(altivec_flags)
targets += altivec1.c
$(obj)/altivec1.c: UNROLL := 1
$(obj)/altivec1.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_altivec2.o += $(altivec_flags)
targets += altivec2.c
$(obj)/altivec2.c: UNROLL := 2
$(obj)/altivec2.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_altivec4.o += $(altivec_flags)
targets += altivec4.c
$(obj)/altivec4.c: UNROLL := 4
$(obj)/altivec4.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_altivec8.o += $(altivec_flags)
targets += altivec8.c
$(obj)/altivec8.c: UNROLL := 8
$(obj)/altivec8.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_neon1.o += $(NEON_FLAGS)
targets += neon1.c
$(obj)/neon1.c: UNROLL := 1
$(obj)/neon1.c: $(src)/neon.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_neon2.o += $(NEON_FLAGS)
targets += neon2.c
$(obj)/neon2.c: UNROLL := 2
$(obj)/neon2.c: $(src)/neon.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_neon4.o += $(NEON_FLAGS)
targets += neon4.c
$(obj)/neon4.c: UNROLL := 4
$(obj)/neon4.c: $(src)/neon.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_neon8.o += $(NEON_FLAGS)
targets += neon8.c
$(obj)/neon8.c: UNROLL := 8
$(obj)/neon8.c: $(src)/neon.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
targets += tilegx8.c
$(obj)/tilegx8.c: UNROLL := 8
$(obj)/tilegx8.c: $(src)/tilegx.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
targets += s390vx8.c
$(obj)/s390vx8.c: UNROLL := 8
$(obj)/s390vx8.c: $(src)/s390vx.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
quiet_cmd_mktable = TABLE $@
cmd_mktable = $(obj)/mktables > $@ || ( rm -f $@ && exit 1 )
targets += tables.c
$(obj)/tables.c: $(obj)/mktables FORCE
$(call if_changed,mktable)
ue='0b3589be9b98994ce3d5aeca52445d1f5627c4ba'/>
x86/irq: Make irq activate operations symmetric
The recent commit which prevents double activation of interrupts unearthed
interesting code in x86. The code (ab)uses irq_domain_activate_irq() to
reconfigure an already activated interrupt. That trips over the prevention
code now.
Fix it by deactivating the interrupt before activating the new configuration.
Fixes: 08d85f3ea99f1 "irqdomain: Avoid activating interrupts more than once"
Reported-and-tested-by: Mike Galbraith <efault@gmx.de>
Reported-and-tested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701311901580.3457@nanos