Merge tag 'powerpc-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Add support for building the kernel using PC-relative addressing on
   Power10.

 - Allow HV KVM guests on Power10 to use prefixed instructions.

 - Unify support for the P2020 CPU (85xx) into a single machine
   description.

 - Always build the 64-bit kernel with 128-bit long double.

 - Drop support for several obsolete 2000's era development boards as
   identified by Paul Gortmaker.

 - A series fixing VFIO on Power since some generic changes.

 - Various other small features and fixes.

Thanks to Alexey Kardashevskiy, Andrew Donnellan, Benjamin Gray, Bo Liu,
Christophe Leroy, Dan Carpenter, David Binderman, Ira Weiny, Joel
Stanley, Kajol Jain, Kautuk Consul, Liang He, Luis Chamberlain, Masahiro
Yamada, Michael Neuling, Nathan Chancellor, Nathan Lynch, Nicholas
Miehlbradt, Nicholas Piggin, Nick Desaulniers, Nysal Jan K.A, Pali
Rohár, Paul Gortmaker, Paul Mackerras, Petr Vaněk, Randy Dunlap, Rob
Herring, Sachin Sant, Sean Christopherson, Segher Boessenkool, and
Timothy Pearson.

* tag 'powerpc-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (156 commits)
  powerpc/64s: Disable pcrel code model on Clang
  powerpc: Fix merge conflict between pcrel and copy_thread changes
  powerpc/configs/powernv: Add IGB=y
  powerpc/configs/64s: Drop JFS Filesystem
  powerpc/configs/64s: Use EXT4 to mount EXT2 filesystems
  powerpc/configs: Make pseries_defconfig an alias for ppc64le_guest
  powerpc/configs: Make pseries_le an alias for ppc64le_guest
  powerpc/configs: Incorporate generic kvm_guest.config into guest configs
  powerpc/configs: Add IBMVETH=y and IBMVNIC=y to guest configs
  powerpc/configs/64s: Enable Device Mapper options
  powerpc/configs/64s: Enable PSTORE
  powerpc/configs/64s: Enable VLAN support
  powerpc/configs/64s: Enable BLK_DEV_NVME
  powerpc/configs/64s: Drop REISERFS
  powerpc/configs/64s: Use SHA512 for module signatures
  powerpc/configs/64s: Enable IO_STRICT_DEVMEM
  powerpc/configs/64s: Enable SCHEDSTATS
  powerpc/configs/64s: Enable DEBUG_VM & other options
  powerpc/configs/64s: Enable EMULATED_STATS
  powerpc/configs/64s: Enable KUNIT and most tests
  ...

1 files changed, 61 insertions, 44 deletions

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index e91d7e91347d..dca73f673d70 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -107,6 +107,7 @@ LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) += -z notext
 LDFLAGS_vmlinux	:= $(LDFLAGS_vmlinux-y)
 
 ifdef CONFIG_PPC64
+ifndef CONFIG_PPC_KERNEL_PCREL
 ifeq ($(call cc-option-yn,-mcmodel=medium),y)
 	# -mcmodel=medium breaks modules because it uses 32bit offsets from
 	# the TOC pointer to create pointers where possible. Pointers into the
@@ -121,20 +122,20 @@ else
 	export NO_MINIMAL_TOC := -mno-minimal-toc
 endif
 endif
+endif
 
 CFLAGS-$(CONFIG_PPC64)	:= $(call cc-option,-mtraceback=no)
-ifndef CONFIG_CC_IS_CLANG
 ifdef CONFIG_PPC64_ELF_ABI_V2
 CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc))
-AFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv2)
 else
+ifndef CONFIG_CC_IS_CLANG
 CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv1)
 CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mcall-aixdesc)
-AFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv1)
 endif
 endif
 CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc))
 CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mno-pointers-to-nested-functions)
+CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mlong-double-128)
 
 # Clang unconditionally reserves r2 on ppc32 and does not support the flag
 # https://bugs.llvm.org/show_bug.cgi?id=39555
@@ -181,8 +182,16 @@ ifdef CONFIG_476FPE_ERR46
 endif
 
 # No prefix or pcrel
+ifdef CONFIG_PPC_KERNEL_PREFIXED
+KBUILD_CFLAGS += $(call cc-option,-mprefixed)
+else
 KBUILD_CFLAGS += $(call cc-option,-mno-prefixed)
+endif
+ifdef CONFIG_PPC_KERNEL_PCREL
+KBUILD_CFLAGS += $(call cc-option,-mpcrel)
+else
 KBUILD_CFLAGS += $(call cc-option,-mno-pcrel)
+endif
 
 # No AltiVec or VSX or MMA instructions when building kernel
 KBUILD_CFLAGS += $(call cc-option,-mno-altivec)
@@ -238,110 +247,118 @@ bootwrapper_install:
 	$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
 
 include $(srctree)/scripts/Makefile.defconf
-PHONY += pseries_le_defconfig
-pseries_le_defconfig:
-	$(call merge_into_defconfig,pseries_defconfig,le)
 
-PHONY += ppc64le_defconfig
+generated_configs += ppc64le_defconfig
 ppc64le_defconfig:
 	$(call merge_into_defconfig,ppc64_defconfig,le)
 
-PHONY += ppc64le_guest_defconfig
+generated_configs += ppc64le_guest_defconfig
 ppc64le_guest_defconfig:
-	$(call merge_into_defconfig,ppc64_defconfig,le guest)
+	$(call merge_into_defconfig,ppc64_defconfig,le guest kvm_guest)
 
-PHONY += ppc64_guest_defconfig
+generated_configs += ppc64_guest_defconfig
 ppc64_guest_defconfig:
-	$(call merge_into_defconfig,ppc64_defconfig,be guest)
+	$(call merge_into_defconfig,ppc64_defconfig,be guest kvm_guest)
+
+generated_configs += pseries_le_defconfig
+pseries_le_defconfig: ppc64le_guest_defconfig
 
-PHONY += powernv_be_defconfig
+generated_configs += pseries_defconfig
+pseries_defconfig: ppc64le_guest_defconfig
+
+generated_configs += powernv_be_defconfig
 powernv_be_defconfig:
 	$(call merge_into_defconfig,powernv_defconfig,be)
 
-PHONY += mpc85xx_defconfig
+generated_configs += mpc85xx_defconfig
 mpc85xx_defconfig:
 	$(call merge_into_defconfig,mpc85xx_base.config,\
 		85xx-32bit 85xx-hw fsl-emb-nonhw)
 
-PHONY += mpc85xx_smp_defconfig
+generated_configs += mpc85xx_smp_defconfig
 mpc85xx_smp_defconfig:
 	$(call merge_into_defconfig,mpc85xx_base.config,\
 		85xx-32bit 85xx-smp 85xx-hw fsl-emb-nonhw)
 
-PHONY += corenet32_smp_defconfig
+generated_configs += corenet32_smp_defconfig
 corenet32_smp_defconfig:
 	$(call merge_into_defconfig,corenet_base.config,\
 		85xx-32bit 85xx-smp 85xx-hw fsl-emb-nonhw dpaa)
 
-PHONY += corenet64_smp_defconfig
+generated_configs += corenet64_smp_defconfig
 corenet64_smp_defconfig:
 	$(call merge_into_defconfig,corenet_base.config,\
 		85xx-64bit 85xx-smp altivec 85xx-hw fsl-emb-nonhw dpaa)
 
-PHONY += mpc86xx_defconfig
+generated_configs += mpc86xx_defconfig
 mpc86xx_defconfig:
 	$(call merge_into_defconfig,mpc86xx_base.config,\
 		86xx-hw fsl-emb-nonhw)
 
-PHONY += mpc86xx_smp_defconfig
+generated_configs += mpc86xx_smp_defconfig
 mpc86xx_smp_defconfig:
 	$(call merge_into_defconfig,mpc86xx_base.config,\
 		86xx-smp 86xx-hw fsl-emb-nonhw)
 
-PHONY += ppc32_allmodconfig
+generated_configs += ppc32_allmodconfig
 ppc32_allmodconfig:
 	$(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctree)/arch/powerpc/configs/book3s_32.config \
 		-f $(srctree)/Makefile allmodconfig
 
-PHONY += ppc_defconfig
+generated_configs += ppc_defconfig
 ppc_defconfig:
 	$(call merge_into_defconfig,book3s_32.config,)
 
-PHONY += ppc64le_allmodconfig
+generated_configs += ppc64le_allmodconfig
 ppc64le_allmodconfig:
 	$(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctree)/arch/powerpc/configs/le.config \
 		-f $(srctree)/Makefile allmodconfig
 
-PHONY += ppc64le_allnoconfig
+generated_configs += ppc64le_allnoconfig
 ppc64le_allnoconfig:
 	$(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctree)/arch/powerpc/configs/ppc64le.config \
 		-f $(srctree)/Makefile allnoconfig
 
-PHONY += ppc64_book3e_allmodconfig
+generated_configs += ppc64_book3e_allmodconfig
 ppc64_book3e_allmodconfig:
 	$(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctree)/arch/powerpc/configs/85xx-64bit.config \
 		-f $(srctree)/Makefile allmodconfig
 
-PHONY += ppc32_randconfig
+generated_configs += ppc32_randconfig
 ppc32_randconfig:
 	$(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctree)/arch/powerpc/configs/32-bit.config \
 		-f $(srctree)/Makefile randconfig
 
-PHONY += ppc64_randconfig
+generated_configs += ppc64_randconfig
 ppc64_randconfig:
 	$(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctree)/arch/powerpc/configs/64-bit.config \
 		-f $(srctree)/Makefile randconfig
 
+PHONY += $(generated_configs)
+
 define archhelp
-  @echo '* zImage          - Build default images selected by kernel config'
-  @echo '  zImage.*        - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)'
-  @echo '  uImage          - U-Boot native image format'
-  @echo '  cuImage.<dt>    - Backwards compatible U-Boot image for older'
-  @echo '                    versions which do not support device trees'
-  @echo '  dtbImage.<dt>   - zImage with an embedded device tree blob'
-  @echo '  simpleImage.<dt> - Firmware independent image.'
-  @echo '  treeImage.<dt>  - Support for older IBM 4xx firmware (not U-Boot)'
-  @echo '  install         - Install kernel using'
-  @echo '                    (your) ~/bin/$(INSTALLKERNEL) or'
-  @echo '                    (distribution) /sbin/$(INSTALLKERNEL) or'
-  @echo '                    install to $$(INSTALL_PATH) and run lilo'
-  @echo '  *_defconfig     - Select default config from arch/$(ARCH)/configs'
-  @echo ''
-  @echo '  Targets with <dt> embed a device tree blob inside the image'
-  @echo '  These targets support board with firmware that does not'
-  @echo '  support passing a device tree directly.  Replace <dt> with the'
-  @echo '  name of a dts file from the arch/$(ARCH)/boot/dts/ directory'
-  @echo '  (minus the .dts extension).'
+  echo '* zImage          - Build default images selected by kernel config'
+  echo '  zImage.*        - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)'
+  echo '  uImage          - U-Boot native image format'
+  echo '  cuImage.<dt>    - Backwards compatible U-Boot image for older'
+  echo '                    versions which do not support device trees'
+  echo '  dtbImage.<dt>   - zImage with an embedded device tree blob'
+  echo '  simpleImage.<dt> - Firmware independent image.'
+  echo '  treeImage.<dt>  - Support for older IBM 4xx firmware (not U-Boot)'
+  echo '  install         - Install kernel using'
+  echo '                    (your) ~/bin/$(INSTALLKERNEL) or'
+  echo '                    (distribution) /sbin/$(INSTALLKERNEL) or'
+  echo '                    install to $$(INSTALL_PATH) and run lilo'
+  echo '  *_defconfig     - Select default config from arch/$(ARCH)/configs'
+  echo ''
+  echo '  Targets with <dt> embed a device tree blob inside the image'
+  echo '  These targets support board with firmware that does not'
+  echo '  support passing a device tree directly.  Replace <dt> with the'
+  echo '  name of a dts file from the arch/$(ARCH)/boot/dts/ directory'
+  echo '  (minus the .dts extension).'
+  echo
+  $(foreach cfg,$(generated_configs),
+    printf "  %-27s - Build for %s\\n" $(cfg) $(subst _defconfig,,$(cfg));)
 endef
 
 PHONY += install