arch/power8: Rename to ppc64

POWER8 is a specific implementation of ppc64, which is by now outdated
(POWER9 has been on the market for a while). Rename arch/power8/ to
potentially cover a wider range of hardware.

TEST=Toolchains built before/after this commit can build coreboot for
     emulation/qemu-power8 from before/after this commit.

Change-Id: I2d6f08b12a9ffc8a652ddcd6f24ad85ecb33ca52
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/c/29943
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Timothy Pearson <tpearson@raptorengineering.com>

Documentation/releases/coreboot-4.9-relnotes.md

@@ -23,6 +23,8 @@ General changes
 * Add bootblock compression capability: on systems that copy the bootblock
   from very slow flash to ERAM, allow adding a stub that decompresses the
   bootblock into ERAM to minimize the amount of flash reads
+* Rename the POWER8 architecture port to PPC64 to reflect that it isn't limited
+  to POWER8
 
 Toolchain
 ---------

MAINTAINERS

@@ -144,11 +144,11 @@ F:	src/mainboard/emulation/*-riscv/
 F:	src/mainboard/sifive/
 F:	util/riscv/
 
-POWER8 ARCHITECTURE
+PPC64 ARCHITECTURE
 M:	Ronald Minnich <rminnich@gmail.com>
 M:	Timothy Pearson <tpearson@raptorengineeringinc.com>
 S:	Maintained
-F:	src/arch/power8/
+F:	src/arch/ppc64/
 F:	src/cpu/qemu-power8/
 F:	src/mainboard/emulation/qemu-power8/
 

src/arch/power8/Kconfig

@@ -1,25 +0,0 @@
-config ARCH_POWER8
-	bool
-	default n
-
-config ARCH_BOOTBLOCK_POWER8
-	bool
-	default n
-	select ARCH_POWER8
-	select BOOTBLOCK_CUSTOM
-	select C_ENVIRONMENT_BOOTBLOCK
-	select ARCH_VERSTAGE_POWER8
-	select ARCH_ROMSTAGE_POWER8
-	select ARCH_RAMSTAGE_POWER8
-
-config ARCH_VERSTAGE_POWER8
-	bool
-	default n
-
-config ARCH_ROMSTAGE_POWER8
-	bool
-	default n
-
-config ARCH_RAMSTAGE_POWER8
-	bool
-	default n

src/arch/ppc64/Kconfig

@@ -0,0 +1,25 @@
+config ARCH_PPC64
+	bool
+	default n
+
+config ARCH_BOOTBLOCK_PPC64
+	bool
+	default n
+	select ARCH_PPC64
+	select BOOTBLOCK_CUSTOM
+	select C_ENVIRONMENT_BOOTBLOCK
+	select ARCH_VERSTAGE_PPC64
+	select ARCH_ROMSTAGE_PPC64
+	select ARCH_RAMSTAGE_PPC64
+
+config ARCH_VERSTAGE_PPC64
+	bool
+	default n
+
+config ARCH_ROMSTAGE_PPC64
+	bool
+	default n
+
+config ARCH_RAMSTAGE_PPC64
+	bool
+	default n

src/arch/ppc64/Makefile.inc

@@ -16,14 +16,14 @@
 ##
 ################################################################################
 
-power8_flags = -I$(src)/arch/power8/ -mbig-endian -mcpu=power8 -mtune=power8
+ppc64_flags = -I$(src)/arch/ppc64/ -mbig-endian -mcpu=power8 -mtune=power8
 
-power8_asm_flags =
+ppc64_asm_flags =
 
 ################################################################################
 ## bootblock
 ################################################################################
-ifeq ($(CONFIG_ARCH_BOOTBLOCK_POWER8),y)
+ifeq ($(CONFIG_ARCH_BOOTBLOCK_PPC64),y)
 
 bootblock-y = bootblock.S stages.c
 bootblock-y += boot.c
@@ -35,7 +35,7 @@ bootblock-y += \
 	$(top)/src/lib/memmove.c \
 	$(top)/src/lib/memset.c
 
-bootblock-generic-ccopts += $(power8_flags)
+bootblock-generic-ccopts += $(ppc64_flags)
 
 $(objcbfs)/bootblock.debug: $$(bootblock-objs)
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
@@ -48,7 +48,7 @@ endif
 ################################################################################
 ## romstage
 ################################################################################
-ifeq ($(CONFIG_ARCH_ROMSTAGE_POWER8),y)
+ifeq ($(CONFIG_ARCH_ROMSTAGE_PPC64),y)
 
 romstage-y += boot.c
 romstage-y += stages.c
@@ -68,15 +68,15 @@ $(objcbfs)/romstage.debug: $$(romstage-objs)
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
 	$(LD_romstage) $(LDFLAGS_romstage) -o $@ -L$(obj) -T $(call src-to-obj,romstage,src/mainboard/$(MAINBOARDDIR)/memlayout.ld) --whole-archive --start-group $(filter-out %.ld,$(romstage-objs)) --end-group $(COMPILER_RT_romstage)
 
-romstage-c-ccopts += $(power8_flags)
-romstage-S-ccopts += $(power8_asm_flags)
+romstage-c-ccopts += $(ppc64_flags)
+romstage-S-ccopts += $(ppc64_asm_flags)
 
 endif
 
 ################################################################################
 ## ramstage
 ################################################################################
-ifeq ($(CONFIG_ARCH_RAMSTAGE_POWER8),y)
+ifeq ($(CONFIG_ARCH_RAMSTAGE_PPC64),y)
 
 ramstage-y += rom_media.c
 ramstage-y += stages.c
@@ -102,7 +102,7 @@ $(objcbfs)/ramstage.debug: $$(ramstage-objs)
 	@printf "    CC         $(subst $(obj)/,,$(@))\n"
 	$(LD_ramstage) $(LDFLAGS_ramstage) -o $@ -L$(obj) -T $(call src-to-obj,ramstage,src/mainboard/$(MAINBOARDDIR)/memlayout.ld) --whole-archive --start-group $(filter-out %.ld,$(ramstage-objs)) --end-group $(COMPILER_RT_ramstage)
 
-ramstage-c-ccopts += $(power8_flags)
-ramstage-S-ccopts += $(power8_asm_flags)
+ramstage-c-ccopts += $(ppc64_flags)
+ramstage-S-ccopts += $(ppc64_asm_flags)
 
 endif

src/arch/ppc64/include/arch/cpu.h

@@ -36,10 +36,10 @@ struct cpu_info {
 #endif
 };
 
-struct cpuinfo_power8 {
-	uint8_t    power8;            /* CPU family */
-	uint8_t    power8_vendor;     /* CPU vendor */
-	uint8_t    power8_model;
+struct cpuinfo_ppc64 {
+	uint8_t    ppc64;            /* CPU family */
+	uint8_t    ppc64_vendor;     /* CPU vendor */
+	uint8_t    ppc64_model;
 };
 
 #endif

src/arch/ppc64/include/stdint.h

@@ -11,8 +11,8 @@
  * GNU General Public License for more details.
  */
 
-#ifndef POWER8_STDINT_H
-#define POWER8_STDINT_H
+#ifndef PPC64_STDINT_H
+#define PPC64_STDINT_H
 
 /* Exact integral types */
 typedef unsigned char      uint8_t;
@@ -73,4 +73,4 @@ typedef uint8_t bool;
 typedef s64             intptr_t;
 typedef u64		uintptr_t;
 
-#endif /* POWER8_STDINT_H */
+#endif /* PPC64_STDINT_H */

src/cpu/qemu-power8/Kconfig

@@ -15,7 +15,7 @@
 
 config CPU_QEMU_POWER8
 	bool
-	select ARCH_BOOTBLOCK_POWER8
-	select ARCH_VERSTAGE_POWER8
-	select ARCH_ROMSTAGE_POWER8
-	select ARCH_RAMSTAGE_POWER8
+	select ARCH_BOOTBLOCK_PPC64
+	select ARCH_VERSTAGE_PPC64
+	select ARCH_ROMSTAGE_PPC64
+	select ARCH_RAMSTAGE_PPC64

src/device/Kconfig

@@ -85,7 +85,7 @@ config MAINBOARD_USE_LIBGFXINIT
 # TODO: Explain differences (if any) for onboard cards.
 config VGA_ROM_RUN
 	bool "Run VGA Option ROMs"
-	depends on PCI && (ARCH_X86 || ARCH_POWER8) && !MAINBOARD_FORCE_NATIVE_VGA_INIT
+	depends on PCI && (ARCH_X86 || ARCH_PPC64) && !MAINBOARD_FORCE_NATIVE_VGA_INIT
 	select HAVE_VGA_TEXT_FRAMEBUFFER
 	help
 	  Execute VGA Option ROMs in coreboot if found. This can be used

src/mainboard/emulation/qemu-power8/Kconfig

@@ -20,9 +20,9 @@ if BOARD_EMULATION_QEMU_POWER8
 config BOARD_SPECIFIC_OPTIONS
 	def_bool y
 	select BOARD_ROMSIZE_KB_4096
-	select ARCH_BOOTBLOCK_POWER8
+	select ARCH_BOOTBLOCK_PPC64
 	select HAVE_UART_SPECIAL
-	select ARCH_POWER8
+	select ARCH_PPC64
 	select BOOT_DEVICE_NOT_SPI_FLASH
 	select MISSING_BOARD_RESET
 

toolchain.inc

@@ -57,7 +57,7 @@ ARCHDIR-arm	:= arm
 ARCHDIR-arm64	:= arm64
 ARCHDIR-riscv	:= riscv
 ARCHDIR-mips	:= mips
-ARCHDIR-power8	:= power8
+ARCHDIR-ppc64	:= ppc64
 
 CFLAGS_arm	+=
 CFLAGS_arm64	+= -mgeneral-regs-only
@@ -65,7 +65,7 @@ CFLAGS_mips	+= -mips32r2 -G 0 -mno-abicalls -fno-pic
 CFLAGS_riscv	+=
 CFLAGS_x86_32	+=
 CFLAGS_x86_64	+= -mcmodel=large -mno-red-zone
-CFLAGS_power8	+=
+CFLAGS_ppc64	+=
 
 # Some boards only provide 2K stacks, so storing lots of data there leads to
 # problems. Since C rules don't allow us to statically determine the maximum
@@ -85,7 +85,7 @@ CFLAGS_arm	+= -Wstack-usage=1536
 CFLAGS_arm64	+= -Wstack-usage=1536
 CFLAGS_mips	+= -Wstack-usage=1536
 CFLAGS_riscv	+= -Wstack-usage=1536
-CFLAGS_power8	+= -Wstack-usage=1536
+CFLAGS_ppc64	+= -Wstack-usage=1536
 endif
 
 toolchain_to_dir = \

util/crossgcc/Makefile

@@ -9,12 +9,12 @@ DEST ?= $(CURDIR)/xgcc
 
 all all_with_gdb:
 	$(MAKE) build-i386 build-x64 build-arm build-mips \
-		build-riscv build-aarch64 build-power8 build-nds32le \
+		build-riscv build-aarch64 build-ppc64 build-nds32le \
 		build_clang build_iasl build_make
 
 all_without_gdb:
 	$(MAKE) SKIP_GDB=1 build-i386 build-x64 build-arm build-mips \
-		build-riscv build-aarch64 build-power8 build-nds32le \
+		build-riscv build-aarch64 build-ppc64 build-nds32le \
 		build_clang build_iasl build_make
 
 build_tools: build_gcc build_gdb
@@ -63,7 +63,7 @@ build-riscv:
 	# GDB is currently not supported on RISC-V
 	@$(MAKE) build_gcc BUILD_PLATFORM=riscv-elf
 
-build-power8:
+build-ppc64:
 	@$(MAKE) build_tools BUILD_PLATFORM=powerpc64-linux-gnu
 
 build-nds32le:
@@ -85,6 +85,6 @@ distclean: clean
 
 .PHONY: build_gcc build_iasl build_gdb build_clang all all_with_gdb \
 	all_without_gdb build_tools build-i386 build-x64 build-arm  \
-	build-aarch64 build-mips build-riscv build-power8 build-nds32le \
+	build-aarch64 build-mips build-riscv build-ppc64 build-nds32le \
 	clean distclean clean_tempfiles
 .NOTPARALLEL:

util/crossgcc/Makefile.inc

@@ -13,7 +13,7 @@
 ## GNU General Public License for more details.
 ##
 
-TOOLCHAIN_ARCHES := i386 x64 arm aarch64 mips riscv power8 nds32le
+TOOLCHAIN_ARCHES := i386 x64 arm aarch64 mips riscv ppc64 nds32le
 
 help_toolchain help::
 	@echo  '*** Toolchain targets ***'

util/lint/check_lint_tests

@@ -6,7 +6,7 @@ UNDERSCORE='_'
 
 #lint-stable-000-license-headers
 TESTFILE000a=src/arch/x86/thread.c
-TESTFILE000b=src/arch/power8/misc.c
+TESTFILE000b=src/arch/ppc64/misc.c
 sed -i.bak 's/^[[:space:]]\*[[:space:]].*//' ${TESTFILE000a}
 sed -i.bak 's/^[[:space:]]\*[[:space:]]but WITHOUT ANY WARRANTY;//' ${TESTFILE000b}
 

util/xcompile/xcompile

@@ -303,7 +303,7 @@ EOF
 }
 
 # Architecture definitions
-SUPPORTED_ARCHITECTURES="arm arm64 mipsel riscv x64 x86 power8"
+SUPPORTED_ARCHITECTURES="arm arm64 mipsel riscv x64 x86 ppc64"
 
 # TARCH: local name for the architecture
 # (used as CC_${TARCH} in the build system)
@@ -366,12 +366,12 @@ arch_config_mipsel() {
 	TENDIAN="EL"
 }
 
-arch_config_power8() {
-	TARCH="power8"
+arch_config_ppc64() {
+	TARCH="ppc64"
 	TBFDARCHS="powerpc"
 	TCLIST="powerpc64"
 	TWIDTH="64"
-	TSUPP="power8"
+	TSUPP="ppc64"
 	TABI="linux-gnu" # there is no generic ABI on ppc64
 	CC_RT_EXTRA_GCC="-mcpu=power8 -mbig-endian"
 }