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Commit 2e6e33ba authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 

* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (78 commits)
  [PATCH] powerpc: Add FSL SEC node to documentation
  [PATCH] macintosh: tidy-up driver_register() return values
  [PATCH] powerpc: tidy-up of_register_driver()/driver_register() return values
  [PATCH] powerpc: via-pmu warning fix
  [PATCH] macintosh: cleanup the use of i2c headers
  [PATCH] powerpc: dont allow old RTC to be selected
  [PATCH] powerpc: make powerbook_sleep_grackle static
  [PATCH] powerpc: Fix warning in add_memory
  [PATCH] powerpc: update mailing list addresses
  [PATCH] powerpc: Remove calculation of io hole
  [PATCH] powerpc: iseries: Add bootargs to /chosen
  [PATCH] powerpc: iseries: Add /system-id, /model and /compatible
  [PATCH] powerpc: Add strne2a() to convert a string from EBCDIC to ASCII
  [PATCH] powerpc: iseries: Make more stuff static in platforms/iseries/mf.c
  [PATCH] powerpc: iseries: Remove pointless iSeries_(restart|power_off|halt)
  [PATCH] powerpc: iseries: mf related cleanups
  [PATCH] powerpc: Replace platform_is_lpar() with a firmware feature
  [PATCH] powerpc: trivial: Cleanup whitespace in cputable.h
  [PATCH] powerpc: Remove unused iommu_off logic from pSeries_init_early()
  [PATCH] powerpc: Unconfuse htab_bolt_mapping() callers
  ...
parents b7ad6d75 b88a0b1d

Documentation/powerpc/booting-without-of.txt

+72 −0
Original line number Diff line number Diff line
@@ -1365,6 +1365,78 @@ platforms are moved over to use the flattened-device-tree model. 
	};





   g) Freescale SOC SEC Security Engines



   Required properties:



    - device_type : Should be "crypto"

    - model : Model of the device.  Should be "SEC1" or "SEC2"

    - compatible : Should be "talitos"

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

    - interrupts : <a b> where a is the interrupt number and b is a

      field that represents an encoding of the sense and level

      information for the interrupt.  This should be encoded based on

      the information in section 2) depending on the type of interrupt

      controller you have.

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

      services interrupts for this device.

    - num-channels : An integer representing the number of channels

      available.

    - channel-fifo-len : An integer representing the number of

      descriptor pointers each channel fetch fifo can hold.

    - exec-units-mask : The bitmask representing what execution units

      (EUs) are available. It's a single 32 bit cell. EU information

      should be encoded following the SEC's Descriptor Header Dword

      EU_SEL0 field documentation, i.e. as follows:



        bit 0 = reserved - should be 0

        bit 1 = set if SEC has the ARC4 EU (AFEU)

        bit 2 = set if SEC has the DES/3DES EU (DEU)

        bit 3 = set if SEC has the message digest EU (MDEU)

        bit 4 = set if SEC has the random number generator EU (RNG)

        bit 5 = set if SEC has the public key EU (PKEU)

        bit 6 = set if SEC has the AES EU (AESU)

        bit 7 = set if SEC has the Kasumi EU (KEU)



      bits 8 through 31 are reserved for future SEC EUs.



    - descriptor-types-mask : The bitmask representing what descriptors

      are available. It's a single 32 bit cell. Descriptor type

      information should be encoded following the SEC's Descriptor

      Header Dword DESC_TYPE field documentation, i.e. as follows:



        bit 0  = set if SEC supports the aesu_ctr_nonsnoop desc. type

        bit 1  = set if SEC supports the ipsec_esp descriptor type

        bit 2  = set if SEC supports the common_nonsnoop desc. type

        bit 3  = set if SEC supports the 802.11i AES ccmp desc. type

        bit 4  = set if SEC supports the hmac_snoop_no_afeu desc. type

        bit 5  = set if SEC supports the srtp descriptor type

        bit 6  = set if SEC supports the non_hmac_snoop_no_afeu desc.type

        bit 7  = set if SEC supports the pkeu_assemble descriptor type

        bit 8  = set if SEC supports the aesu_key_expand_output desc.type

        bit 9  = set if SEC supports the pkeu_ptmul descriptor type

        bit 10 = set if SEC supports the common_nonsnoop_afeu desc. type

        bit 11 = set if SEC supports the pkeu_ptadd_dbl descriptor type



      ..and so on and so forth.



   Example:



       /* MPC8548E */

       crypto@30000 {

               device_type = "crypto";

               model = "SEC2";

               compatible = "talitos";

               reg = <30000 10000>;

               interrupts = <1d 3>;

               interrupt-parent = <40000>;

               num-channels = <4>;

               channel-fifo-len = <24>;

               exec-units-mask = <000000fe>;

               descriptor-types-mask = <073f1127>;

       };





   More devices will be defined as this spec matures.

Documentation/powerpc/eeh-pci-error-recovery.txt

+8 −7
Original line number Diff line number Diff line
@@ -121,7 +121,7 @@ accomplished. 


EEH must be enabled in the PHB's very early during the boot process,

and if a PCI slot is hot-plugged. The former is performed by

eeh_init() in arch/ppc64/kernel/eeh.c, and the later by

eeh_init() in arch/powerpc/platforms/pseries/eeh.c, and the later by

drivers/pci/hotplug/pSeries_pci.c calling in to the eeh.c code.

EEH must be enabled before a PCI scan of the device can proceed.

Current Power5 hardware will not work unless EEH is enabled;
@@ -133,7 +133,7 @@ error. Given an arbitrary address, the routine 
pci_get_device_by_addr() will find the pci device associated

with that address (if any).



The default include/asm-ppc64/io.h macros readb(), inb(), insb(),

The default include/asm-powerpc/io.h macros readb(), inb(), insb(),

etc. include a check to see if the i/o read returned all-0xff's.

If so, these make a call to eeh_dn_check_failure(), which in turn

asks the firmware if the all-ff's value is the sign of a true EEH
@@ -143,11 +143,12 @@ seen in /proc/ppc64/eeh (subject to change). Normally, almost 
all of these occur during boot, when the PCI bus is scanned, where

a large number of 0xff reads are part of the bus scan procedure.



If a frozen slot is detected, code in arch/ppc64/kernel/eeh.c will

print a stack trace to syslog (/var/log/messages).  This stack trace

has proven to be very useful to device-driver authors for finding

out at what point the EEH error was detected, as the error itself

usually occurs slightly beforehand.

If a frozen slot is detected, code in 

arch/powerpc/platforms/pseries/eeh.c will print a stack trace to 

syslog (/var/log/messages).  This stack trace has proven to be very 

useful to device-driver authors for finding out at what point the EEH 

error was detected, as the error itself usually occurs slightly 

beforehand.



Next, it uses the Linux kernel notifier chain/work queue mechanism to

allow any interested parties to find out about the failure.  Device

Documentation/powerpc/hvcs.txt

+2 −2
Original line number Diff line number Diff line
@@ -558,9 +558,9 @@ partitions. 


The proper channel for reporting bugs is either through the Linux OS

distribution company that provided your OS or by posting issues to the

ppc64 development mailing list at:

PowerPC development mailing list at:



linuxppc64-dev@lists.linuxppc.org

linuxppc-dev@ozlabs.org



This request is to provide a documented and searchable public exchange

of the problems and solutions surrounding this driver for the benefit of

MAINTAINERS

+2 −2
Original line number Diff line number Diff line
@@ -534,7 +534,7 @@ S: Supported 
BROADBAND PROCESSOR ARCHITECTURE

P:	Arnd Bergmann

M:	arnd@arndb.de

L:	linuxppc64-dev@ozlabs.org

L:	linuxppc-dev@ozlabs.org

W:	http://linuxppc64.org

S:	Supported
@@ -1624,7 +1624,7 @@ P: Anton Blanchard 
M:	anton@samba.org

M:	anton@au.ibm.com

W:	http://linuxppc64.org

L:	linuxppc64-dev@ozlabs.org

L:	linuxppc-dev@ozlabs.org

S:	Supported



LINUX SECURITY MODULE (LSM) FRAMEWORK

arch/powerpc/Kconfig

+32 −6
Original line number Diff line number Diff line
@@ -127,6 +127,12 @@ config PPC_83xx 
	select 83xx

	select PPC_FPU



config PPC_85xx

	bool "Freescale 85xx"

	select E500

	select FSL_SOC

	select 85xx



config 40x

	bool "AMCC 40x"
@@ -139,8 +145,6 @@ config 8xx 
config E200

	bool "Freescale e200"



config E500

	bool "Freescale e500"

endchoice



config POWER4_ONLY
@@ -168,6 +172,13 @@ config 6xx 
config 83xx

	bool



# this is temp to handle compat with arch=ppc

config 85xx

	bool



config E500

	bool



config PPC_FPU

	bool

	default y if PPC64
@@ -217,6 +228,7 @@ config ALTIVEC 
config SPE

	bool "SPE Support"

	depends on E200 || E500

	default y

	---help---

	  This option enables kernel support for the Signal Processing

	  Extensions (SPE) to the PowerPC processor. The kernel currently
@@ -238,6 +250,21 @@ config PPC_STD_MMU_32 
	def_bool y

	depends on PPC_STD_MMU && PPC32



config VIRT_CPU_ACCOUNTING

	bool "Deterministic task and CPU time accounting"

	depends on PPC64

	default y

	help

	  Select this option to enable more accurate task and CPU time

	  accounting.  This is done by reading a CPU counter on each

	  kernel entry and exit and on transitions within the kernel

	  between system, softirq and hardirq state, so there is a

	  small performance impact.  This also enables accounting of

	  stolen time on logically-partitioned systems running on

	  IBM POWER5-based machines.



	  If in doubt, say Y here.



config SMP

	depends on PPC_STD_MMU

	bool "Symmetric multi-processing support"
@@ -734,13 +761,12 @@ config GENERIC_ISA_DMA 


config PPC_I8259

	bool

	default y if 85xx

	default n



config PPC_INDIRECT_PCI

	bool

	depends on PCI

	default y if 40x || 44x || 85xx

	default y if 40x || 44x

	default n



config EISA
@@ -757,8 +783,8 @@ config MCA 
	bool



config PCI

	bool "PCI support" if 40x || CPM2 || PPC_83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES)

	default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx && !85xx

	bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES)

	default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx && !PPC_85xx

	default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS

	default PCI_QSPAN if !4xx && !CPM2 && 8xx

	help