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Commit f7d6a728 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'powerpc-4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux 

Pull powerpc fixes from Michael Ellerman:
 "Five fairly small fixes for things that went in this cycle.

  A fairly large patch to rework the CAS logic on Power9, necessitated
  by a late change to the firmware API, and we can't boot without it.

  Three fixes going to stable, allowing more instructions to be emulated
  on LE, fixing a boot crash on 32-bit Freescale BookE machines, and the
  OPAL XICS workaround.

  And a patch from me to sort the selects under CONFIG PPC. Annoying
  churn, but worth it in the long run, and best for it to go in now to
  avoid conflicts.

  Thanks to:
    Alexey Kardashevskiy, Anton Blanchard, Balbir Singh, Gautham R.
    Shenoy, Laurentiu Tudor, Nicholas Piggin, Paul Mackerras, Ravi
    Bangoria, Sachin Sant, Shile Zhang, Suraj Jitindar Singh"

* tag 'powerpc-4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc: Sort the selects under CONFIG_PPC
  powerpc/64: Fix L1D cache shape vector reporting L1I values
  powerpc/64: Avoid panic during boot due to divide by zero in init_cache_info()
  powerpc: Update to new option-vector-5 format for CAS
  powerpc: Parse the command line before calling CAS
  powerpc/xics: Work around limitations of OPAL XICS priority handling
  powerpc/64: Fix checksum folding in csum_add()
  powerpc/powernv: Fix opal tracepoints with JUMP_LABEL=n
  powerpc/booke: Fix boot crash due to null hugepd
  powerpc: Fix compiling a BE kernel with a powerpc64le toolchain
  selftest/powerpc: Fix false failures for skipped tests
  powerpc/powernv: Fix bug due to labeling ambiguity in power_enter_stop
  powerpc/64: Invalidate process table caching after setting process table
  powerpc: emulate_step() tests for load/store instructions
  powerpc: Emulation support for load/store instructions on LE
parents 8c2c8ed8 a7d2475a

arch/powerpc/Kconfig

+72 −66
Original line number Diff line number Diff line
@@ -80,93 +80,99 @@ config ARCH_HAS_DMA_SET_COHERENT_MASK 
config PPC

	bool

	default y

	select BUILDTIME_EXTABLE_SORT

	#

	# Please keep this list sorted alphabetically.

	#

	select ARCH_HAS_DEVMEM_IS_ALLOWED

	select ARCH_HAS_DMA_SET_COHERENT_MASK

	select ARCH_HAS_ELF_RANDOMIZE

	select ARCH_HAS_GCOV_PROFILE_ALL

	select ARCH_HAS_SCALED_CPUTIME		if VIRT_CPU_ACCOUNTING_NATIVE

	select ARCH_HAS_SG_CHAIN

	select ARCH_HAS_TICK_BROADCAST		if GENERIC_CLOCKEVENTS_BROADCAST

	select ARCH_HAS_UBSAN_SANITIZE_ALL

	select ARCH_HAVE_NMI_SAFE_CMPXCHG

	select ARCH_MIGHT_HAVE_PC_PARPORT

	select ARCH_MIGHT_HAVE_PC_SERIO

	select ARCH_SUPPORTS_ATOMIC_RMW

	select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT

	select ARCH_USE_BUILTIN_BSWAP

	select ARCH_USE_CMPXCHG_LOCKREF		if PPC64

	select ARCH_WANT_IPC_PARSE_VERSION

	select BINFMT_ELF

	select ARCH_HAS_ELF_RANDOMIZE

	select OF

	select OF_EARLY_FLATTREE

	select OF_RESERVED_MEM

	select HAVE_FTRACE_MCOUNT_RECORD

	select BUILDTIME_EXTABLE_SORT

	select CLONE_BACKWARDS

	select DCACHE_WORD_ACCESS		if PPC64 && CPU_LITTLE_ENDIAN

	select EDAC_ATOMIC_SCRUB

	select EDAC_SUPPORT

	select GENERIC_ATOMIC64			if PPC32

	select GENERIC_CLOCKEVENTS

	select GENERIC_CLOCKEVENTS_BROADCAST	if SMP

	select GENERIC_CMOS_UPDATE

	select GENERIC_CPU_AUTOPROBE

	select GENERIC_IRQ_SHOW

	select GENERIC_IRQ_SHOW_LEVEL

	select GENERIC_SMP_IDLE_THREAD

	select GENERIC_STRNCPY_FROM_USER

	select GENERIC_STRNLEN_USER

	select GENERIC_TIME_VSYSCALL_OLD

	select HAVE_ARCH_AUDITSYSCALL

	select HAVE_ARCH_HARDENED_USERCOPY

	select HAVE_ARCH_JUMP_LABEL

	select HAVE_ARCH_KGDB

	select HAVE_ARCH_SECCOMP_FILTER

	select HAVE_ARCH_TRACEHOOK

	select HAVE_CBPF_JIT			if !PPC64

	select HAVE_CONTEXT_TRACKING		if PPC64

	select HAVE_DEBUG_KMEMLEAK

	select HAVE_DEBUG_STACKOVERFLOW

	select HAVE_DMA_API_DEBUG

	select HAVE_DYNAMIC_FTRACE

	select HAVE_DYNAMIC_FTRACE_WITH_REGS	if MPROFILE_KERNEL

	select HAVE_FUNCTION_TRACER

	select HAVE_EBPF_JIT			if PPC64

	select HAVE_EFFICIENT_UNALIGNED_ACCESS	if !(CPU_LITTLE_ENDIAN && POWER7_CPU)

	select HAVE_FTRACE_MCOUNT_RECORD

	select HAVE_FUNCTION_GRAPH_TRACER

	select HAVE_FUNCTION_TRACER

	select HAVE_GCC_PLUGINS

	select SYSCTL_EXCEPTION_TRACE

	select VIRT_TO_BUS if !PPC64

	select HAVE_GENERIC_RCU_GUP

	select HAVE_HW_BREAKPOINT		if PERF_EVENTS && (PPC_BOOK3S || PPC_8xx)

	select HAVE_IDE

	select HAVE_IOREMAP_PROT

	select HAVE_EFFICIENT_UNALIGNED_ACCESS if !(CPU_LITTLE_ENDIAN && POWER7_CPU)

	select HAVE_IRQ_EXIT_ON_IRQ_STACK

	select HAVE_KERNEL_GZIP

	select HAVE_KPROBES

	select HAVE_OPTPROBES if PPC64

	select HAVE_ARCH_KGDB

	select HAVE_KRETPROBES

	select HAVE_ARCH_TRACEHOOK

	select HAVE_LIVEPATCH			if HAVE_DYNAMIC_FTRACE_WITH_REGS

	select HAVE_MEMBLOCK

	select HAVE_MEMBLOCK_NODE_MAP

	select HAVE_DMA_API_DEBUG

	select HAVE_MOD_ARCH_SPECIFIC

	select HAVE_NMI				if PERF_EVENTS

	select HAVE_OPROFILE

	select HAVE_DEBUG_KMEMLEAK

	select ARCH_HAS_SG_CHAIN

	select GENERIC_ATOMIC64 if PPC32

	select HAVE_OPTPROBES			if PPC64

	select HAVE_PERF_EVENTS

	select HAVE_PERF_EVENTS_NMI		if PPC64

	select HAVE_PERF_REGS

	select HAVE_PERF_USER_STACK_DUMP

	select HAVE_RCU_TABLE_FREE		if SMP

	select HAVE_REGS_AND_STACK_ACCESS_API

	select HAVE_HW_BREAKPOINT if PERF_EVENTS && (PPC_BOOK3S || PPC_8xx)

	select ARCH_WANT_IPC_PARSE_VERSION

	select SPARSE_IRQ

	select HAVE_SYSCALL_TRACEPOINTS

	select HAVE_VIRT_CPU_ACCOUNTING

	select IRQ_DOMAIN

	select GENERIC_IRQ_SHOW

	select GENERIC_IRQ_SHOW_LEVEL

	select IRQ_FORCED_THREADING

	select HAVE_RCU_TABLE_FREE if SMP

	select HAVE_SYSCALL_TRACEPOINTS

	select HAVE_CBPF_JIT if !PPC64

	select HAVE_EBPF_JIT if PPC64

	select HAVE_ARCH_JUMP_LABEL

	select ARCH_HAVE_NMI_SAFE_CMPXCHG

	select ARCH_HAS_GCOV_PROFILE_ALL

	select GENERIC_SMP_IDLE_THREAD

	select GENERIC_CMOS_UPDATE

	select GENERIC_TIME_VSYSCALL_OLD

	select GENERIC_CLOCKEVENTS

	select GENERIC_CLOCKEVENTS_BROADCAST if SMP

	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST

	select GENERIC_STRNCPY_FROM_USER

	select GENERIC_STRNLEN_USER

	select HAVE_MOD_ARCH_SPECIFIC

	select MODULES_USE_ELF_RELA

	select CLONE_BACKWARDS

	select ARCH_USE_BUILTIN_BSWAP

	select OLD_SIGSUSPEND

	select OLD_SIGACTION if PPC32

	select HAVE_DEBUG_STACKOVERFLOW

	select HAVE_IRQ_EXIT_ON_IRQ_STACK

	select ARCH_USE_CMPXCHG_LOCKREF if PPC64

	select HAVE_ARCH_AUDITSYSCALL

	select ARCH_SUPPORTS_ATOMIC_RMW

	select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN

	select NO_BOOTMEM

	select HAVE_GENERIC_RCU_GUP

	select HAVE_PERF_EVENTS_NMI if PPC64

	select HAVE_NMI if PERF_EVENTS

	select EDAC_SUPPORT

	select EDAC_ATOMIC_SCRUB

	select ARCH_HAS_DMA_SET_COHERENT_MASK

	select ARCH_HAS_DEVMEM_IS_ALLOWED

	select HAVE_ARCH_SECCOMP_FILTER

	select ARCH_HAS_UBSAN_SANITIZE_ALL

	select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT

	select HAVE_LIVEPATCH if HAVE_DYNAMIC_FTRACE_WITH_REGS

	select GENERIC_CPU_AUTOPROBE

	select HAVE_VIRT_CPU_ACCOUNTING

	select ARCH_HAS_SCALED_CPUTIME if VIRT_CPU_ACCOUNTING_NATIVE

	select HAVE_ARCH_HARDENED_USERCOPY

	select HAVE_KERNEL_GZIP

	select HAVE_CONTEXT_TRACKING if PPC64

	select OF

	select OF_EARLY_FLATTREE

	select OF_RESERVED_MEM

	select OLD_SIGACTION			if PPC32

	select OLD_SIGSUSPEND

	select SPARSE_IRQ

	select SYSCTL_EXCEPTION_TRACE

	select VIRT_TO_BUS			if !PPC64

	#

	# Please keep this list sorted alphabetically.

	#



config GENERIC_CSUM

	def_bool n

arch/powerpc/Makefile

+10 −1
Original line number Diff line number Diff line
@@ -72,8 +72,15 @@ GNUTARGET := powerpc 
MULTIPLEWORD	:= -mmultiple

endif



cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mbig-endian)

ifdef CONFIG_PPC64

cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mabi=elfv1)

cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mcall-aixdesc)

aflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mabi=elfv1)

aflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -mabi=elfv2

endif



cflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -mlittle-endian

cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mbig-endian)

ifneq ($(cc-name),clang)

  cflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -mno-strict-align

endif
@@ -113,7 +120,9 @@ ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) 
CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc))

AFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv2)

else

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

CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc))

CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mno-pointers-to-nested-functions)

arch/powerpc/include/asm/checksum.h

+1 −1
Original line number Diff line number Diff line
@@ -112,7 +112,7 @@ static inline __wsum csum_add(__wsum csum, __wsum addend) 


#ifdef __powerpc64__

	res += (__force u64)addend;

	return (__force __wsum)((u32)res + (res >> 32));

	return (__force __wsum) from64to32(res);

#else

	asm("addc %0,%0,%1;"

	    "addze %0,%0;"

arch/powerpc/include/asm/cpuidle.h

+2 −2
Original line number Diff line number Diff line
@@ -70,8 +70,8 @@ static inline void report_invalid_psscr_val(u64 psscr_val, int err) 
	std	r0,0(r1);					\

	ptesync;						\

	ld	r0,0(r1);					\

1:	cmpd	cr0,r0,r0;					\

	bne	1b;						\

236:	cmpd	cr0,r0,r0;					\

	bne	236b;						\

	IDLE_INST;						\



#define	IDLE_STATE_ENTER_SEQ_NORET(IDLE_INST)			\

arch/powerpc/include/asm/elf.h

+2 −2
Original line number Diff line number Diff line
@@ -144,8 +144,8 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm, 
#define ARCH_DLINFO_CACHE_GEOMETRY					\

	NEW_AUX_ENT(AT_L1I_CACHESIZE, ppc64_caches.l1i.size);		\

	NEW_AUX_ENT(AT_L1I_CACHEGEOMETRY, get_cache_geometry(l1i));	\

	NEW_AUX_ENT(AT_L1D_CACHESIZE, ppc64_caches.l1i.size);		\

	NEW_AUX_ENT(AT_L1D_CACHEGEOMETRY, get_cache_geometry(l1i));	\

	NEW_AUX_ENT(AT_L1D_CACHESIZE, ppc64_caches.l1d.size);		\

	NEW_AUX_ENT(AT_L1D_CACHEGEOMETRY, get_cache_geometry(l1d));	\

	NEW_AUX_ENT(AT_L2_CACHESIZE, ppc64_caches.l2.size);		\

	NEW_AUX_ENT(AT_L2_CACHEGEOMETRY, get_cache_geometry(l2));	\

	NEW_AUX_ENT(AT_L3_CACHESIZE, ppc64_caches.l3.size);		\