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Commit c90fca95 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'powerpc-4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux 

Pull powerpc updates from Michael Ellerman:
 "Notable changes:

   - Support for split PMD page table lock on 64-bit Book3S (Power8/9).

   - Add support for HAVE_RELIABLE_STACKTRACE, so we properly support
     live patching again.

   - Add support for patching barrier_nospec in copy_from_user() and
     syscall entry.

   - A couple of fixes for our data breakpoints on Book3S.

   - A series from Nick optimising TLB/mm handling with the Radix MMU.

   - Numerous small cleanups to squash sparse/gcc warnings from Mathieu
     Malaterre.

   - Several series optimising various parts of the 32-bit code from
     Christophe Leroy.

   - Removal of support for two old machines, "SBC834xE" and "C2K"
     ("GEFanuc,C2K"), which is why the diffstat has so many deletions.

  And many other small improvements & fixes.

  There's a few out-of-area changes. Some minor ftrace changes OK'ed by
  Steve, and a fix to our powernv cpuidle driver. Then there's a series
  touching mm, x86 and fs/proc/task_mmu.c, which cleans up some details
  around pkey support. It was ack'ed/reviewed by Ingo & Dave and has
  been in next for several weeks.

  Thanks to: Akshay Adiga, Alastair D'Silva, Alexey Kardashevskiy, Al
  Viro, Andrew Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Arnd
  Bergmann, Balbir Singh, Cédric Le Goater, Christophe Leroy, Christophe
  Lombard, Colin Ian King, Dave Hansen, Fabio Estevam, Finn Thain,
  Frederic Barrat, Gautham R. Shenoy, Haren Myneni, Hari Bathini, Ingo
  Molnar, Jonathan Neuschäfer, Josh Poimboeuf, Kamalesh Babulal,
  Madhavan Srinivasan, Mahesh Salgaonkar, Mark Greer, Mathieu Malaterre,
  Matthew Wilcox, Michael Neuling, Michal Suchanek, Naveen N. Rao,
  Nicholas Piggin, Nicolai Stange, Olof Johansson, Paul Gortmaker, Paul
  Mackerras, Peter Rosin, Pridhiviraj Paidipeddi, Ram Pai, Rashmica
  Gupta, Ravi Bangoria, Russell Currey, Sam Bobroff, Samuel
  Mendoza-Jonas, Segher Boessenkool, Shilpasri G Bhat, Simon Guo,
  Souptick Joarder, Stewart Smith, Thiago Jung Bauermann, Torsten Duwe,
  Vaibhav Jain, Wei Yongjun, Wolfram Sang, Yisheng Xie, YueHaibing"

* tag 'powerpc-4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (251 commits)
  powerpc/64s/radix: Fix missing ptesync in flush_cache_vmap
  cpuidle: powernv: Fix promotion from snooze if next state disabled
  powerpc: fix build failure by disabling attribute-alias warning in pci_32
  ocxl: Fix missing unlock on error in afu_ioctl_enable_p9_wait()
  powerpc-opal: fix spelling mistake "Uniterrupted" -> "Uninterrupted"
  powerpc: fix spelling mistake: "Usupported" -> "Unsupported"
  powerpc/pkeys: Detach execute_only key on !PROT_EXEC
  powerpc/powernv: copy/paste - Mask SO bit in CR
  powerpc: Remove core support for Marvell mv64x60 hostbridges
  powerpc/boot: Remove core support for Marvell mv64x60 hostbridges
  powerpc/boot: Remove support for Marvell mv64x60 i2c controller
  powerpc/boot: Remove support for Marvell MPSC serial controller
  powerpc/embedded6xx: Remove C2K board support
  powerpc/lib: optimise PPC32 memcmp
  powerpc/lib: optimise 32 bits __clear_user()
  powerpc/time: inline arch_vtime_task_switch()
  powerpc/Makefile: set -mcpu=860 flag for the 8xx
  powerpc: Implement csum_ipv6_magic in assembly
  powerpc/32: Optimise __csum_partial()
  powerpc/lib: Adjust .balign inside string functions for PPC32
  ...
parents c0ab8526 ff5bc793

Documentation/ABI/testing/sysfs-class-cxl

+3 −1
Original line number Diff line number Diff line
@@ -69,7 +69,9 @@ Date: September 2014 
Contact:        linuxppc-dev@lists.ozlabs.org

Description:    read/write

                Set the mode for prefaulting in segments into the segment table

                when performing the START_WORK ioctl. Possible values:

                when performing the START_WORK ioctl. Only applicable when

                running under hashed page table mmu.

                Possible values:

                        none: No prefaulting (default)

                        work_element_descriptor: Treat the work element

                                 descriptor as an effective address and

Documentation/accelerators/ocxl.rst

+11 −0
Original line number Diff line number Diff line
@@ -157,6 +157,17 @@ OCXL_IOCTL_GET_METADATA: 
  Obtains configuration information from the card, such at the size of

  MMIO areas, the AFU version, and the PASID for the current context.



OCXL_IOCTL_ENABLE_P9_WAIT:



  Allows the AFU to wake a userspace thread executing 'wait'. Returns

  information to userspace to allow it to configure the AFU. Note that

  this is only available on POWER9.



OCXL_IOCTL_GET_FEATURES:



  Reports on which CPU features that affect OpenCAPI are usable from

  userspace.





mmap

----

Documentation/devicetree/bindings/marvell.txt

deleted100644 → 0
+0 −516
Original line number Diff line number Diff line 
Marvell Discovery mv64[345]6x System Controller chips

===========================================================



The Marvell mv64[345]60 series of system controller chips contain

many of the peripherals needed to implement a complete computer

system.  In this section, we define device tree nodes to describe

the system controller chip itself and each of the peripherals

which it contains.  Compatible string values for each node are

prefixed with the string "marvell,", for Marvell Technology Group Ltd.



1) The /system-controller node



  This node is used to represent the system-controller and must be

  present when the system uses a system controller chip. The top-level

  system-controller node contains information that is global to all

  devices within the system controller chip. The node name begins

  with "system-controller" followed by the unit address, which is

  the base address of the memory-mapped register set for the system

  controller chip.



  Required properties:



    - ranges : Describes the translation of system controller addresses

      for memory mapped registers.

    - clock-frequency: Contains the main clock frequency for the system

      controller chip.

    - reg : This property defines the address and size of the

      memory-mapped registers contained within the system controller

      chip.  The address specified in the "reg" property should match

      the unit address of the system-controller node.

    - #address-cells : Address representation for system controller

      devices.  This field represents the number of cells needed to

      represent the address of the memory-mapped registers of devices

      within the system controller chip.

    - #size-cells : Size representation for the memory-mapped

      registers within the system controller chip.

    - #interrupt-cells : Defines the width of cells used to represent

      interrupts.



  Optional properties:



    - model : The specific model of the system controller chip.  Such

      as, "mv64360", "mv64460", or "mv64560".

    - compatible : A string identifying the compatibility identifiers

      of the system controller chip.



  The system-controller node contains child nodes for each system

  controller device that the platform uses.  Nodes should not be created

  for devices which exist on the system controller chip but are not used



  Example Marvell Discovery mv64360 system-controller node:



    system-controller@f1000000 { /* Marvell Discovery mv64360 */

	    #address-cells = <1>;

	    #size-cells = <1>;

	    model = "mv64360";                      /* Default */

	    compatible = "marvell,mv64360";

	    clock-frequency = <133333333>;

	    reg = <0xf1000000 0x10000>;

	    virtual-reg = <0xf1000000>;

	    ranges = <0x88000000 0x88000000 0x1000000 /* PCI 0 I/O Space */

		    0x80000000 0x80000000 0x8000000 /* PCI 0 MEM Space */

		    0xa0000000 0xa0000000 0x4000000 /* User FLASH */

		    0x00000000 0xf1000000 0x0010000 /* Bridge's regs */

		    0xf2000000 0xf2000000 0x0040000>;/* Integrated SRAM */



	    [ child node definitions... ]

    }



2) Child nodes of /system-controller



   a) Marvell Discovery MDIO bus



   The MDIO is a bus to which the PHY devices are connected.  For each

   device that exists on this bus, a child node should be created.  See

   the definition of the PHY node below for an example of how to define

   a PHY.



   Required properties:

     - #address-cells : Should be <1>

     - #size-cells : Should be <0>

     - compatible : Should be "marvell,mv64360-mdio"



   Example:



     mdio {

	     #address-cells = <1>;

	     #size-cells = <0>;

	     compatible = "marvell,mv64360-mdio";



	     ethernet-phy@0 {

		     ......

	     };

     };





   b) Marvell Discovery ethernet controller



   The Discover ethernet controller is described with two levels

   of nodes.  The first level describes an ethernet silicon block

   and the second level describes up to 3 ethernet nodes within

   that block.  The reason for the multiple levels is that the

   registers for the node are interleaved within a single set

   of registers.  The "ethernet-block" level describes the

   shared register set, and the "ethernet" nodes describe ethernet

   port-specific properties.



   Ethernet block node



   Required properties:

     - #address-cells : <1>

     - #size-cells : <0>

     - compatible : "marvell,mv64360-eth-block"

     - reg : Offset and length of the register set for this block



   Optional properties:

     - clocks : Phandle to the clock control device and gate bit



   Example Discovery Ethernet block node:

     ethernet-block@2000 {

	     #address-cells = <1>;

	     #size-cells = <0>;

	     compatible = "marvell,mv64360-eth-block";

	     reg = <0x2000 0x2000>;

	     ethernet@0 {

		     .......

	     };

     };



   Ethernet port node



   Required properties:

     - compatible : Should be "marvell,mv64360-eth".

     - reg : Should be <0>, <1>, or <2>, according to which registers

       within the silicon block the device uses.

     - interrupts : <a> where a is the interrupt number for the port.

     - interrupt-parent : the phandle for the interrupt controller

       that services interrupts for this device.

     - phy : the phandle for the PHY connected to this ethernet

       controller.

     - local-mac-address : 6 bytes, MAC address



   Example Discovery Ethernet port node:

     ethernet@0 {

	     compatible = "marvell,mv64360-eth";

	     reg = <0>;

	     interrupts = <32>;

	     interrupt-parent = <&PIC>;

	     phy = <&PHY0>;

	     local-mac-address = [ 00 00 00 00 00 00 ];

     };







   c) Marvell Discovery PHY nodes



   Required properties:

     - interrupts : <a> where a is the interrupt number for this phy.

     - interrupt-parent : the phandle for the interrupt controller that

       services interrupts for this device.

     - reg : The ID number for the phy, usually a small integer



   Example Discovery PHY node:

     ethernet-phy@1 {

	     compatible = "broadcom,bcm5421";

	     interrupts = <76>;      /* GPP 12 */

	     interrupt-parent = <&PIC>;

	     reg = <1>;

     };





   d) Marvell Discovery SDMA nodes



   Represent DMA hardware associated with the MPSC (multiprotocol

   serial controllers).



   Required properties:

     - compatible : "marvell,mv64360-sdma"

     - reg : Offset and length of the register set for this device

     - interrupts : <a> where a is the interrupt number for the DMA

       device.

     - interrupt-parent : the phandle for the interrupt controller

       that services interrupts for this device.



   Example Discovery SDMA node:

     sdma@4000 {

	     compatible = "marvell,mv64360-sdma";

	     reg = <0x4000 0xc18>;

	     virtual-reg = <0xf1004000>;

	     interrupts = <36>;

	     interrupt-parent = <&PIC>;

     };





   e) Marvell Discovery BRG nodes



   Represent baud rate generator hardware associated with the MPSC

   (multiprotocol serial controllers).



   Required properties:

     - compatible : "marvell,mv64360-brg"

     - reg : Offset and length of the register set for this device

     - clock-src : A value from 0 to 15 which selects the clock

       source for the baud rate generator.  This value corresponds

       to the CLKS value in the BRGx configuration register.  See

       the mv64x60 User's Manual.

     - clock-frequence : The frequency (in Hz) of the baud rate

       generator's input clock.

     - current-speed : The current speed setting (presumably by

       firmware) of the baud rate generator.



   Example Discovery BRG node:

     brg@b200 {

	     compatible = "marvell,mv64360-brg";

	     reg = <0xb200 0x8>;

	     clock-src = <8>;

	     clock-frequency = <133333333>;

	     current-speed = <9600>;

     };





   f) Marvell Discovery CUNIT nodes



   Represent the Serial Communications Unit device hardware.



   Required properties:

     - reg : Offset and length of the register set for this device



   Example Discovery CUNIT node:

     cunit@f200 {

	     reg = <0xf200 0x200>;

     };





   g) Marvell Discovery MPSCROUTING nodes



   Represent the Discovery's MPSC routing hardware



   Required properties:

     - reg : Offset and length of the register set for this device



   Example Discovery CUNIT node:

     mpscrouting@b500 {

	     reg = <0xb400 0xc>;

     };





   h) Marvell Discovery MPSCINTR nodes



   Represent the Discovery's MPSC DMA interrupt hardware registers

   (SDMA cause and mask registers).



   Required properties:

     - reg : Offset and length of the register set for this device



   Example Discovery MPSCINTR node:

     mpsintr@b800 {

	     reg = <0xb800 0x100>;

     };





   i) Marvell Discovery MPSC nodes



   Represent the Discovery's MPSC (Multiprotocol Serial Controller)

   serial port.



   Required properties:

     - compatible : "marvell,mv64360-mpsc"

     - reg : Offset and length of the register set for this device

     - sdma : the phandle for the SDMA node used by this port

     - brg : the phandle for the BRG node used by this port

     - cunit : the phandle for the CUNIT node used by this port

     - mpscrouting : the phandle for the MPSCROUTING node used by this port

     - mpscintr : the phandle for the MPSCINTR node used by this port

     - cell-index : the hardware index of this cell in the MPSC core

     - max_idle : value needed for MPSC CHR3 (Maximum Frame Length)

       register

     - interrupts : <a> where a is the interrupt number for the MPSC.

     - interrupt-parent : the phandle for the interrupt controller

       that services interrupts for this device.



   Example Discovery MPSCINTR node:

     mpsc@8000 {

	     compatible = "marvell,mv64360-mpsc";

	     reg = <0x8000 0x38>;

	     virtual-reg = <0xf1008000>;

	     sdma = <&SDMA0>;

	     brg = <&BRG0>;

	     cunit = <&CUNIT>;

	     mpscrouting = <&MPSCROUTING>;

	     mpscintr = <&MPSCINTR>;

	     cell-index = <0>;

	     max_idle = <40>;

	     interrupts = <40>;

	     interrupt-parent = <&PIC>;

     };





   j) Marvell Discovery Watch Dog Timer nodes



   Represent the Discovery's watchdog timer hardware



   Required properties:

     - compatible : "marvell,mv64360-wdt"

     - reg : Offset and length of the register set for this device



   Example Discovery Watch Dog Timer node:

     wdt@b410 {

	     compatible = "marvell,mv64360-wdt";

	     reg = <0xb410 0x8>;

     };





   k) Marvell Discovery I2C nodes



   Represent the Discovery's I2C hardware



   Required properties:

     - device_type : "i2c"

     - compatible : "marvell,mv64360-i2c"

     - reg : Offset and length of the register set for this device

     - interrupts : <a> where a is the interrupt number for the I2C.

     - interrupt-parent : the phandle for the interrupt controller

       that services interrupts for this device.



   Example Discovery I2C node:

	     compatible = "marvell,mv64360-i2c";

	     reg = <0xc000 0x20>;

	     virtual-reg = <0xf100c000>;

	     interrupts = <37>;

	     interrupt-parent = <&PIC>;

     };





   l) Marvell Discovery PIC (Programmable Interrupt Controller) nodes



   Represent the Discovery's PIC hardware



   Required properties:

     - #interrupt-cells : <1>

     - #address-cells : <0>

     - compatible : "marvell,mv64360-pic"

     - reg : Offset and length of the register set for this device

     - interrupt-controller



   Example Discovery PIC node:

     pic {

	     #interrupt-cells = <1>;

	     #address-cells = <0>;

	     compatible = "marvell,mv64360-pic";

	     reg = <0x0 0x88>;

	     interrupt-controller;

     };





   m) Marvell Discovery MPP (Multipurpose Pins) multiplexing nodes



   Represent the Discovery's MPP hardware



   Required properties:

     - compatible : "marvell,mv64360-mpp"

     - reg : Offset and length of the register set for this device



   Example Discovery MPP node:

     mpp@f000 {

	     compatible = "marvell,mv64360-mpp";

	     reg = <0xf000 0x10>;

     };





   n) Marvell Discovery GPP (General Purpose Pins) nodes



   Represent the Discovery's GPP hardware



   Required properties:

     - compatible : "marvell,mv64360-gpp"

     - reg : Offset and length of the register set for this device



   Example Discovery GPP node:

     gpp@f000 {

	     compatible = "marvell,mv64360-gpp";

	     reg = <0xf100 0x20>;

     };





   o) Marvell Discovery PCI host bridge node



   Represents the Discovery's PCI host bridge device.  The properties

   for this node conform to Rev 2.1 of the PCI Bus Binding to IEEE

   1275-1994.  A typical value for the compatible property is

   "marvell,mv64360-pci".



   Example Discovery PCI host bridge node

     pci@80000000 {

	     #address-cells = <3>;

	     #size-cells = <2>;

	     #interrupt-cells = <1>;

	     device_type = "pci";

	     compatible = "marvell,mv64360-pci";

	     reg = <0xcf8 0x8>;

	     ranges = <0x01000000 0x0        0x0

			     0x88000000 0x0 0x01000000

		       0x02000000 0x0 0x80000000

			     0x80000000 0x0 0x08000000>;

	     bus-range = <0 255>;

	     clock-frequency = <66000000>;

	     interrupt-parent = <&PIC>;

	     interrupt-map-mask = <0xf800 0x0 0x0 0x7>;

	     interrupt-map = <

		     /* IDSEL 0x0a */

		     0x5000 0 0 1 &PIC 80

		     0x5000 0 0 2 &PIC 81

		     0x5000 0 0 3 &PIC 91

		     0x5000 0 0 4 &PIC 93



		     /* IDSEL 0x0b */

		     0x5800 0 0 1 &PIC 91

		     0x5800 0 0 2 &PIC 93

		     0x5800 0 0 3 &PIC 80

		     0x5800 0 0 4 &PIC 81



		     /* IDSEL 0x0c */

		     0x6000 0 0 1 &PIC 91

		     0x6000 0 0 2 &PIC 93

		     0x6000 0 0 3 &PIC 80

		     0x6000 0 0 4 &PIC 81



		     /* IDSEL 0x0d */

		     0x6800 0 0 1 &PIC 93

		     0x6800 0 0 2 &PIC 80

		     0x6800 0 0 3 &PIC 81

		     0x6800 0 0 4 &PIC 91

	     >;

     };





   p) Marvell Discovery CPU Error nodes



   Represent the Discovery's CPU error handler device.



   Required properties:

     - compatible : "marvell,mv64360-cpu-error"

     - reg : Offset and length of the register set for this device

     - interrupts : the interrupt number for this device

     - interrupt-parent : the phandle for the interrupt controller

       that services interrupts for this device.



   Example Discovery CPU Error node:

     cpu-error@70 {

	     compatible = "marvell,mv64360-cpu-error";

	     reg = <0x70 0x10 0x128 0x28>;

	     interrupts = <3>;

	     interrupt-parent = <&PIC>;

     };





   q) Marvell Discovery SRAM Controller nodes



   Represent the Discovery's SRAM controller device.



   Required properties:

     - compatible : "marvell,mv64360-sram-ctrl"

     - reg : Offset and length of the register set for this device

     - interrupts : the interrupt number for this device

     - interrupt-parent : the phandle for the interrupt controller

       that services interrupts for this device.



   Example Discovery SRAM Controller node:

     sram-ctrl@380 {

	     compatible = "marvell,mv64360-sram-ctrl";

	     reg = <0x380 0x80>;

	     interrupts = <13>;

	     interrupt-parent = <&PIC>;

     };





   r) Marvell Discovery PCI Error Handler nodes



   Represent the Discovery's PCI error handler device.



   Required properties:

     - compatible : "marvell,mv64360-pci-error"

     - reg : Offset and length of the register set for this device

     - interrupts : the interrupt number for this device

     - interrupt-parent : the phandle for the interrupt controller

       that services interrupts for this device.



   Example Discovery PCI Error Handler node:

     pci-error@1d40 {

	     compatible = "marvell,mv64360-pci-error";

	     reg = <0x1d40 0x40 0xc28 0x4>;

	     interrupts = <12>;

	     interrupt-parent = <&PIC>;

     };





   s) Marvell Discovery Memory Controller nodes



   Represent the Discovery's memory controller device.



   Required properties:

     - compatible : "marvell,mv64360-mem-ctrl"

     - reg : Offset and length of the register set for this device

     - interrupts : the interrupt number for this device

     - interrupt-parent : the phandle for the interrupt controller

       that services interrupts for this device.



   Example Discovery Memory Controller node:

     mem-ctrl@1400 {

	     compatible = "marvell,mv64360-mem-ctrl";

	     reg = <0x1400 0x60>;

	     interrupts = <17>;

	     interrupt-parent = <&PIC>;

     };

arch/powerpc/Kconfig

+3 −0
Original line number Diff line number Diff line
@@ -156,6 +156,7 @@ config PPC 
	select BUILDTIME_EXTABLE_SORT

	select CLONE_BACKWARDS

	select DCACHE_WORD_ACCESS		if PPC64 && CPU_LITTLE_ENDIAN

	select DYNAMIC_FTRACE			if FUNCTION_TRACER

	select EDAC_ATOMIC_SCRUB

	select EDAC_SUPPORT

	select GENERIC_ATOMIC64			if PPC32
@@ -214,6 +215,7 @@ config PPC 
	select HAVE_PERF_USER_STACK_DUMP

	select HAVE_RCU_TABLE_FREE		if SMP

	select HAVE_REGS_AND_STACK_ACCESS_API

	select HAVE_RELIABLE_STACKTRACE		if PPC64 && CPU_LITTLE_ENDIAN

	select HAVE_SYSCALL_TRACEPOINTS

	select HAVE_VIRT_CPU_ACCOUNTING

	select HAVE_IRQ_TIME_ACCOUNTING
@@ -228,6 +230,7 @@ config PPC 
	select OF_RESERVED_MEM

	select OLD_SIGACTION			if PPC32

	select OLD_SIGSUSPEND

	select RTC_LIB

	select SPARSE_IRQ

	select SYSCTL_EXCEPTION_TRACE

	select VIRT_TO_BUS			if !PPC64

arch/powerpc/Makefile

+18 −14
Original line number Diff line number Diff line
@@ -17,17 +17,18 @@ HAS_BIARCH := $(call cc-option-yn, -m32) 
# Set default 32 bits cross compilers for vdso and boot wrapper

CROSS32_COMPILE ?=



CROSS32CC		:= $(CROSS32_COMPILE)gcc

CROSS32AR		:= $(CROSS32_COMPILE)ar



ifeq ($(HAS_BIARCH),y)

ifeq ($(CROSS32_COMPILE),)

CROSS32CC	:= $(CC) -m32

KBUILD_ARFLAGS	+= --target=elf32-powerpc

ifdef CONFIG_PPC32

# These options will be overridden by any -mcpu option that the CPU

# or platform code sets later on the command line, but they are needed

# to set a sane 32-bit cpu target for the 64-bit cross compiler which

# may default to the wrong ISA.

KBUILD_CFLAGS		+= -mcpu=powerpc

KBUILD_AFLAGS		+= -mcpu=powerpc

endif

endif

endif



export CROSS32CC CROSS32AR



ifeq ($(CROSS_COMPILE),)

KBUILD_DEFCONFIG := $(shell uname -m)_defconfig
@@ -74,13 +75,15 @@ endif 
endif



ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)

override LD	+= -EL

KBUILD_CFLAGS	+= -mlittle-endian

LDFLAGS		+= -EL

LDEMULATION	:= lppc

GNUTARGET	:= powerpcle

MULTIPLEWORD	:= -mno-multiple

KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-save-toc-indirect)

else

override LD	+= -EB

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

LDFLAGS		+= -EB

LDEMULATION	:= ppc

GNUTARGET	:= powerpc

MULTIPLEWORD	:= -mmultiple
@@ -93,19 +96,19 @@ 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



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

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

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

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



ifeq ($(HAS_BIARCH),y)

override AS	+= -a$(BITS)

override LD	+= -m elf$(BITS)$(LDEMULATION)

override CC	+= -m$(BITS)

KBUILD_CFLAGS	+= -m$(BITS)

KBUILD_AFLAGS	+= -m$(BITS) -Wl,-a$(BITS)

LDFLAGS		+= -m elf$(BITS)$(LDEMULATION)

KBUILD_ARFLAGS	+= --target=elf$(BITS)-$(GNUTARGET)

endif
@@ -178,6 +181,7 @@ CFLAGS-$(CONFIG_POWER6_CPU) += $(call cc-option,-mcpu=power6) 
CFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7)

CFLAGS-$(CONFIG_POWER8_CPU) += $(call cc-option,-mcpu=power8)

CFLAGS-$(CONFIG_POWER9_CPU) += $(call cc-option,-mcpu=power9)

CFLAGS-$(CONFIG_PPC_8xx) += $(call cc-option,-mcpu=860)



# Altivec option not allowed with e500mc64 in GCC.

ifeq ($(CONFIG_ALTIVEC),y)