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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux

Browse source 
Pull powerpc updates from Michael Ellerman:
 "Here's a first pull request for powerpc updates for 3.18.

  The bulk of the additions are for the "cxl" driver, for IBM's Coherent
  Accelerator Processor Interface (CAPI).  Most of it's in drivers/misc,
  which Greg & Arnd maintain, Greg said he was happy for us to take it
  through our tree.

  There's the usual minor cleanups and fixes, including a bit of noise
  in drivers from some of those.  A bunch of updates to our EEH code,
  which has been getting more testing.  Several nice speedups from
  Anton, including 20% in clear_page().

  And a bunch of updates for freescale from Scott"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (130 commits)
  cxl: Fix afu_read() not doing finish_wait() on signal or non-blocking
  cxl: Add documentation for userspace APIs
  cxl: Add driver to Kbuild and Makefiles
  cxl: Add userspace header file
  cxl: Driver code for powernv PCIe based cards for userspace access
  cxl: Add base builtin support
  powerpc/mm: Add hooks for cxl
  powerpc/opal: Add PHB to cxl mode call
  powerpc/mm: Add new hash_page_mm()
  powerpc/powerpc: Add new PCIe functions for allocating cxl interrupts
  cxl: Add new header for call backs and structs
  powerpc/powernv: Split out set MSI IRQ chip code
  powerpc/mm: Export mmu_kernel_ssize and mmu_linear_psize
  powerpc/msi: Improve IRQ bitmap allocator
  powerpc/cell: Make spu_flush_all_slbs() generic
  powerpc/cell: Move data segment faulting code out of cell platform
  powerpc/cell: Move spu_handle_mm_fault() out of cell platform
  powerpc/pseries: Use new defines when calling H_SET_MODE
  powerpc: Update contact info in Documentation files
  powerpc/perf/hv-24x7: Simplify catalog_read()
  ...
This commit is contained in:
Linus Torvalds 2014-10-11 20:34:00 -04:00
commit fd9879b9bb
236 changed files with 8642 additions and 1575 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7
View file

@ -1,6 +1,6 @@
What: /sys/bus/event_source/devices/hv_24x7/interface/catalog
Date: February 2014
Contact: Cody P Schafer <cody@linux.vnet.ibm.com>
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
Description:
Provides access to the binary "24x7 catalog" provided by the
hypervisor on POWER7 and 8 systems. This catalog lists events
@ -10,14 +10,14 @@ Description:
What: /sys/bus/event_source/devices/hv_24x7/interface/catalog_length
Date: February 2014
Contact: Cody P Schafer <cody@linux.vnet.ibm.com>
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
Description:
A number equal to the length in bytes of the catalog. This is
also extractable from the provided binary "catalog" sysfs entry.
What: /sys/bus/event_source/devices/hv_24x7/interface/catalog_version
Date: February 2014
Contact: Cody P Schafer <cody@linux.vnet.ibm.com>
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
Description:
Exposes the "version" field of the 24x7 catalog. This is also
extractable from the provided binary "catalog" sysfs entry.

12
Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci
View file

@ -1,6 +1,6 @@
What: /sys/bus/event_source/devices/hv_gpci/interface/collect_privileged
Date: February 2014
Contact: Cody P Schafer <cody@linux.vnet.ibm.com>
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
Description:
'0' if the hypervisor is configured to forbid access to event
counters being accumulated by other guests and to physical
@ -9,35 +9,35 @@ Description:
What: /sys/bus/event_source/devices/hv_gpci/interface/ga
Date: February 2014
Contact: Cody P Schafer <cody@linux.vnet.ibm.com>
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
Description:
0 or 1. Indicates whether we have access to "GA" events (listed
in arch/powerpc/perf/hv-gpci.h).
What: /sys/bus/event_source/devices/hv_gpci/interface/expanded
Date: February 2014
Contact: Cody P Schafer <cody@linux.vnet.ibm.com>
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
Description:
0 or 1. Indicates whether we have access to "EXPANDED" events (listed
in arch/powerpc/perf/hv-gpci.h).
What: /sys/bus/event_source/devices/hv_gpci/interface/lab
Date: February 2014
Contact: Cody P Schafer <cody@linux.vnet.ibm.com>
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
Description:
0 or 1. Indicates whether we have access to "LAB" events (listed
in arch/powerpc/perf/hv-gpci.h).
What: /sys/bus/event_source/devices/hv_gpci/interface/version
Date: February 2014
Contact: Cody P Schafer <cody@linux.vnet.ibm.com>
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
Description:
A number indicating the version of the gpci interface that the
hypervisor reports supporting.
What: /sys/bus/event_source/devices/hv_gpci/interface/kernel_version
Date: February 2014
Contact: Cody P Schafer <cody@linux.vnet.ibm.com>
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
Description:
A number indicating the latest version of the gpci interface
that the kernel is aware of.

129
Documentation/ABI/testing/sysfs-class-cxl Normal file
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@ -0,0 +1,129 @@
Slave contexts (eg. /sys/class/cxl/afu0.0s):
What: /sys/class/cxl/<afu>/irqs_max
Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: read/write
Decimal value of maximum number of interrupts that can be
requested by userspace. The default on probe is the maximum
that hardware can support (eg. 2037). Write values will limit
userspace applications to that many userspace interrupts. Must
be >= irqs_min.
What: /sys/class/cxl/<afu>/irqs_min
Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Decimal value of the minimum number of interrupts that
userspace must request on a CXL_START_WORK ioctl. Userspace may
omit the num_interrupts field in the START_WORK IOCTL to get
this minimum automatically.
What: /sys/class/cxl/<afu>/mmio_size
Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Decimal value of the size of the MMIO space that may be mmaped
by userspace.
What: /sys/class/cxl/<afu>/modes_supported
Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
List of the modes this AFU supports. One per line.
Valid entries are: "dedicated_process" and "afu_directed"
What: /sys/class/cxl/<afu>/mode
Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: read/write
The current mode the AFU is using. Will be one of the modes
given in modes_supported. Writing will change the mode
provided that no user contexts are attached.
What: /sys/class/cxl/<afu>/prefault_mode
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:
none: No prefaulting (default)
work_element_descriptor: Treat the work element
descriptor as an effective address and
prefault what it points to.
all: all segments process calling START_WORK maps.
What: /sys/class/cxl/<afu>/reset
Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: write only
Writing 1 here will reset the AFU provided there are not
contexts active on the AFU.
What: /sys/class/cxl/<afu>/api_version
Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Decimal value of the current version of the kernel/user API.
What: /sys/class/cxl/<afu>/api_version_com
Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Decimal value of the the lowest version of the userspace API
this this kernel supports.
Master contexts (eg. /sys/class/cxl/afu0.0m)
What: /sys/class/cxl/<afu>m/mmio_size
Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Decimal value of the size of the MMIO space that may be mmaped
by userspace. This includes all slave contexts space also.
What: /sys/class/cxl/<afu>m/pp_mmio_len
Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Decimal value of the Per Process MMIO space length.
What: /sys/class/cxl/<afu>m/pp_mmio_off
Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Decimal value of the Per Process MMIO space offset.
Card info (eg. /sys/class/cxl/card0)
What: /sys/class/cxl/<card>/caia_version
Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Identifies the CAIA Version the card implements.
What: /sys/class/cxl/<card>/psl_version
Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Identifies the revision level of the PSL.
What: /sys/class/cxl/<card>/base_image
Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Identifies the revision level of the base image for devices
that support loadable PSLs. For FPGAs this field identifies
the image contained in the on-adapter flash which is loaded
during the initial program load.
What: /sys/class/cxl/<card>/image_loaded
Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Will return "user" or "factory" depending on the image loaded
onto the card.

27
Documentation/devicetree/bindings/pci/fsl,pci.txt Normal file
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@ -0,0 +1,27 @@
* Bus Enumeration by Freescale PCI-X Agent
Typically any Freescale PCI-X bridge hardware strapped into Agent mode
is prevented from enumerating the bus. The PrPMC form-factor requires
all mezzanines to be PCI-X Agents, but one per system may still
enumerate the bus.
The property defined below will allow a PCI-X bridge to be used for bus
enumeration despite being strapped into Agent mode.
Required properties:
- fsl,pci-agent-force-enum : There is no value associated with this
property. The property itself is treated as a boolean.
Example:
/* PCI-X bridge known to be PrPMC Monarch */
pci0: pci@ef008000 {
fsl,pci-agent-force-enum;
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
compatible = "fsl,mpc8540-pcix", "fsl,mpc8540-pci";
device_type = "pci";
...
...
};

1
Documentation/ioctl/ioctl-number.txt
View file

@ -313,6 +313,7 @@ Code Seq#(hex) Include File Comments
0xB1 00-1F PPPoX <mailto:mostrows@styx.uwaterloo.ca>
0xB3 00 linux/mmc/ioctl.h
0xC0 00-0F linux/usb/iowarrior.h
0xCA 00-0F uapi/misc/cxl.h
0xCB 00-1F CBM serial IEC bus in development:
<mailto:michael.klein@puffin.lb.shuttle.de>
0xCD 01 linux/reiserfs_fs.h

2
Documentation/powerpc/00-INDEX
View file

@ -11,6 +11,8 @@ bootwrapper.txt
cpu_features.txt
- info on how we support a variety of CPUs with minimal compile-time
options.
cxl.txt
- Overview of the CXL driver.
eeh-pci-error-recovery.txt
- info on PCI Bus EEH Error Recovery
firmware-assisted-dump.txt

379
Documentation/powerpc/cxl.txt Normal file
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@ -0,0 +1,379 @@
Coherent Accelerator Interface (CXL)
====================================
Introduction
============
The coherent accelerator interface is designed to allow the
coherent connection of accelerators (FPGAs and other devices) to a
POWER system. These devices need to adhere to the Coherent
Accelerator Interface Architecture (CAIA).
IBM refers to this as the Coherent Accelerator Processor Interface
or CAPI. In the kernel it's referred to by the name CXL to avoid
confusion with the ISDN CAPI subsystem.
Coherent in this context means that the accelerator and CPUs can
both access system memory directly and with the same effective
addresses.
Hardware overview
=================
POWER8 FPGA
+----------+ +---------+
| | | |
| CPU | | AFU |
| | | |
| | | |
| | | |
+----------+ +---------+
| PHB | | |
| +------+ | PSL |
| | CAPP |<------>| |
+---+------+ PCIE +---------+
The POWER8 chip has a Coherently Attached Processor Proxy (CAPP)
unit which is part of the PCIe Host Bridge (PHB). This is managed
by Linux by calls into OPAL. Linux doesn't directly program the
CAPP.
The FPGA (or coherently attached device) consists of two parts.
The POWER Service Layer (PSL) and the Accelerator Function Unit
(AFU). The AFU is used to implement specific functionality behind
the PSL. The PSL, among other things, provides memory address
translation services to allow each AFU direct access to userspace
memory.
The AFU is the core part of the accelerator (eg. the compression,
crypto etc function). The kernel has no knowledge of the function
of the AFU. Only userspace interacts directly with the AFU.
The PSL provides the translation and interrupt services that the
AFU needs. This is what the kernel interacts with. For example, if
the AFU needs to read a particular effective address, it sends
that address to the PSL, the PSL then translates it, fetches the
data from memory and returns it to the AFU. If the PSL has a
translation miss, it interrupts the kernel and the kernel services
the fault. The context to which this fault is serviced is based on
who owns that acceleration function.
AFU Modes
=========
There are two programming modes supported by the AFU. Dedicated
and AFU directed. AFU may support one or both modes.
When using dedicated mode only one MMU context is supported. In
this mode, only one userspace process can use the accelerator at
time.
When using AFU directed mode, up to 16K simultaneous contexts can
be supported. This means up to 16K simultaneous userspace
applications may use the accelerator (although specific AFUs may
support fewer). In this mode, the AFU sends a 16 bit context ID
with each of its requests. This tells the PSL which context is
associated with each operation. If the PSL can't translate an
operation, the ID can also be accessed by the kernel so it can
determine the userspace context associated with an operation.
MMIO space
==========
A portion of the accelerator MMIO space can be directly mapped
from the AFU to userspace. Either the whole space can be mapped or
just a per context portion. The hardware is self describing, hence
the kernel can determine the offset and size of the per context
portion.
Interrupts
==========
AFUs may generate interrupts that are destined for userspace. These
are received by the kernel as hardware interrupts and passed onto
userspace by a read syscall documented below.
Data storage faults and error interrupts are handled by the kernel
driver.
Work Element Descriptor (WED)
=============================
The WED is a 64-bit parameter passed to the AFU when a context is
started. Its format is up to the AFU hence the kernel has no
knowledge of what it represents. Typically it will be the
effective address of a work queue or status block where the AFU
and userspace can share control and status information.
User API
========
For AFUs operating in AFU directed mode, two character device
files will be created. /dev/cxl/afu0.0m will correspond to a
master context and /dev/cxl/afu0.0s will correspond to a slave
context. Master contexts have access to the full MMIO space an
AFU provides. Slave contexts have access to only the per process
MMIO space an AFU provides.
For AFUs operating in dedicated process mode, the driver will
only create a single character device per AFU called
/dev/cxl/afu0.0d. This will have access to the entire MMIO space
that the AFU provides (like master contexts in AFU directed).
The types described below are defined in include/uapi/misc/cxl.h
The following file operations are supported on both slave and
master devices.
open
----
Opens the device and allocates a file descriptor to be used with
the rest of the API.
A dedicated mode AFU only has one context and only allows the
device to be opened once.
An AFU directed mode AFU can have many contexts, the device can be
opened once for each context that is available.
When all available contexts are allocated the open call will fail
and return -ENOSPC.
Note: IRQs need to be allocated for each context, which may limit
the number of contexts that can be created, and therefore
how many times the device can be opened. The POWER8 CAPP
supports 2040 IRQs and 3 are used by the kernel, so 2037 are
left. If 1 IRQ is needed per context, then only 2037
contexts can be allocated. If 4 IRQs are needed per context,
then only 2037/4 = 509 contexts can be allocated.
ioctl
-----
CXL_IOCTL_START_WORK:
Starts the AFU context and associates it with the current
process. Once this ioctl is successfully executed, all memory
mapped into this process is accessible to this AFU context
using the same effective addresses. No additional calls are
required to map/unmap memory. The AFU memory context will be
updated as userspace allocates and frees memory. This ioctl
returns once the AFU context is started.
Takes a pointer to a struct cxl_ioctl_start_work:
struct cxl_ioctl_start_work {
__u64 flags;
__u64 work_element_descriptor;
__u64 amr;
__s16 num_interrupts;
__s16 reserved1;
__s32 reserved2;
__u64 reserved3;
__u64 reserved4;
__u64 reserved5;
__u64 reserved6;
};
flags:
Indicates which optional fields in the structure are
valid.
work_element_descriptor:
The Work Element Descriptor (WED) is a 64-bit argument
defined by the AFU. Typically this is an effective
address pointing to an AFU specific structure
describing what work to perform.
amr:
Authority Mask Register (AMR), same as the powerpc
AMR. This field is only used by the kernel when the
corresponding CXL_START_WORK_AMR value is specified in
flags. If not specified the kernel will use a default
value of 0.
num_interrupts:
Number of userspace interrupts to request. This field
is only used by the kernel when the corresponding
CXL_START_WORK_NUM_IRQS value is specified in flags.
If not specified the minimum number required by the
AFU will be allocated. The min and max number can be
obtained from sysfs.
reserved fields:
For ABI padding and future extensions
CXL_IOCTL_GET_PROCESS_ELEMENT:
Get the current context id, also known as the process element.
The value is returned from the kernel as a __u32.
mmap
----
An AFU may have an MMIO space to facilitate communication with the
AFU. If it does, the MMIO space can be accessed via mmap. The size
and contents of this area are specific to the particular AFU. The
size can be discovered via sysfs.
In AFU directed mode, master contexts are allowed to map all of
the MMIO space and slave contexts are allowed to only map the per
process MMIO space associated with the context. In dedicated
process mode the entire MMIO space can always be mapped.
This mmap call must be done after the START_WORK ioctl.
Care should be taken when accessing MMIO space. Only 32 and 64-bit
accesses are supported by POWER8. Also, the AFU will be designed
with a specific endianness, so all MMIO accesses should consider
endianness (recommend endian(3) variants like: le64toh(),
be64toh() etc). These endian issues equally apply to shared memory
queues the WED may describe.
read
----
Reads events from the AFU. Blocks if no events are pending
(unless O_NONBLOCK is supplied). Returns -EIO in the case of an
unrecoverable error or if the card is removed.
read() will always return an integral number of events.
The buffer passed to read() must be at least 4K bytes.
The result of the read will be a buffer of one or more events,
each event is of type struct cxl_event, of varying size.
struct cxl_event {
struct cxl_event_header header;
union {
struct cxl_event_afu_interrupt irq;
struct cxl_event_data_storage fault;
struct cxl_event_afu_error afu_error;
};
};
The struct cxl_event_header is defined as:
struct cxl_event_header {
__u16 type;
__u16 size;
__u16 process_element;
__u16 reserved1;
};
type:
This defines the type of event. The type determines how
the rest of the event is structured. These types are
described below and defined by enum cxl_event_type.
size:
This is the size of the event in bytes including the
struct cxl_event_header. The start of the next event can
be found at this offset from the start of the current
event.
process_element:
Context ID of the event.
reserved field:
For future extensions and padding.
If the event type is CXL_EVENT_AFU_INTERRUPT then the event
structure is defined as:
struct cxl_event_afu_interrupt {
__u16 flags;
__u16 irq; /* Raised AFU interrupt number */
__u32 reserved1;
};
flags:
These flags indicate which optional fields are present
in this struct. Currently all fields are mandatory.
irq:
The IRQ number sent by the AFU.
reserved field:
For future extensions and padding.
If the event type is CXL_EVENT_DATA_STORAGE then the event
structure is defined as:
struct cxl_event_data_storage {
__u16 flags;
__u16 reserved1;
__u32 reserved2;
__u64 addr;
__u64 dsisr;
__u64 reserved3;
};
flags:
These flags indicate which optional fields are present in
this struct. Currently all fields are mandatory.
address:
The address that the AFU unsuccessfully attempted to
access. Valid accesses will be handled transparently by the
kernel but invalid accesses will generate this event.
dsisr:
This field gives information on the type of fault. It is a
copy of the DSISR from the PSL hardware when the address
fault occurred. The form of the DSISR is as defined in the
CAIA.
reserved fields:
For future extensions
If the event type is CXL_EVENT_AFU_ERROR then the event structure
is defined as:
struct cxl_event_afu_error {
__u16 flags;
__u16 reserved1;
__u32 reserved2;
__u64 error;
};
flags:
These flags indicate which optional fields are present in
this struct. Currently all fields are Mandatory.
error:
Error status from the AFU. Defined by the AFU.
reserved fields:
For future extensions and padding
Sysfs Class
===========
A cxl sysfs class is added under /sys/class/cxl to facilitate
enumeration and tuning of the accelerators. Its layout is
described in Documentation/ABI/testing/sysfs-class-cxl
Udev rules
==========
The following udev rules could be used to create a symlink to the
most logical chardev to use in any programming mode (afuX.Yd for
dedicated, afuX.Ys for afu directed), since the API is virtually
identical for each:
SUBSYSTEM=="cxl", ATTRS{mode}=="dedicated_process", SYMLINK="cxl/%b"
SUBSYSTEM=="cxl", ATTRS{mode}=="afu_directed", \
KERNEL=="afu[0-9]*.[0-9]*s", SYMLINK="cxl/%b"

12
MAINTAINERS
View file

@ -2761,6 +2761,18 @@ W: http://www.chelsio.com
S: Supported
F: drivers/net/ethernet/chelsio/cxgb4vf/
CXL (IBM Coherent Accelerator Processor Interface CAPI) DRIVER
M: Ian Munsie <imunsie@au1.ibm.com>
M: Michael Neuling <mikey@neuling.org>
L: linuxppc-dev@lists.ozlabs.org
S: Supported
F: drivers/misc/cxl/
F: include/misc/cxl.h
F: include/uapi/misc/cxl.h
F: Documentation/powerpc/cxl.txt
F: Documentation/powerpc/cxl.txt
F: Documentation/ABI/testing/sysfs-class-cxl
STMMAC ETHERNET DRIVER
M: Giuseppe Cavallaro <peppe.cavallaro@st.com>
L: netdev@vger.kernel.org

11
arch/powerpc/Kconfig
View file

@ -147,6 +147,7 @@ config PPC
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
config GENERIC_CSUM
def_bool CPU_LITTLE_ENDIAN
@ -182,7 +183,7 @@ config SCHED_OMIT_FRAME_POINTER
config ARCH_MAY_HAVE_PC_FDC
bool
default !PPC_PSERIES || PCI
default PCI
config PPC_OF
def_bool y
@ -287,6 +288,10 @@ config PPC_EMULATE_SSTEP
bool
default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT
config ZONE_DMA32
bool
default y if PPC64
source "init/Kconfig"
source "kernel/Kconfig.freezer"
@ -603,6 +608,10 @@ config PPC_SUBPAGE_PROT
to set access permissions (read/write, readonly, or no access)
on the 4k subpages of each 64k page.
config PPC_COPRO_BASE
bool
default n
config SCHED_SMT
bool "SMT (Hyperthreading) scheduler support"
depends on PPC64 && SMP

1
arch/powerpc/Makefile
View file

@ -135,6 +135,7 @@ CFLAGS-$(CONFIG_POWER4_CPU) += $(call cc-option,-mcpu=power4)
CFLAGS-$(CONFIG_POWER5_CPU) += $(call cc-option,-mcpu=power5)
CFLAGS-$(CONFIG_POWER6_CPU) += $(call cc-option,-mcpu=power6)
CFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7)
CFLAGS-$(CONFIG_POWER8_CPU) += $(call cc-option,-mcpu=power8)
# Altivec option not allowed with e500mc64 in GCC.
ifeq ($(CONFIG_ALTIVEC),y)

5
arch/powerpc/boot/Makefile
View file

@ -389,7 +389,12 @@ $(obj)/zImage: $(addprefix $(obj)/, $(image-y))
$(obj)/zImage.initrd: $(addprefix $(obj)/, $(initrd-y))
@rm -f $@; ln $< $@
# Only install the vmlinux
install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)"
# Install the vmlinux and other built boot targets.
zInstall: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $^
# anything not in $(targets)

4
arch/powerpc/boot/dts/fsl/t2081si-post.dtsi
View file

@ -410,7 +410,7 @@ sdhc@114000 {
/include/ "qoriq-gpio-3.dtsi"
/include/ "qoriq-usb2-mph-0.dtsi"
usb0: usb@210000 {
compatible = "fsl-usb2-mph-v2.4", "fsl-usb2-mph";
compatible = "fsl-usb2-mph-v2.5", "fsl-usb2-mph";
fsl,iommu-parent = <&pamu1>;
fsl,liodn-reg = <&guts 0x520>; /* USB1LIODNR */
phy_type = "utmi";
@ -418,7 +418,7 @@ usb0: usb@210000 {
};
/include/ "qoriq-usb2-dr-0.dtsi"
usb1: usb@211000 {
compatible = "fsl-usb2-dr-v2.4", "fsl-usb2-dr";
compatible = "fsl-usb2-dr-v2.5", "fsl-usb2-dr";
fsl,iommu-parent = <&pamu1>;
fsl,liodn-reg = <&guts 0x524>; /* USB1LIODNR */
dr_mode = "host";

4
arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
View file

@ -498,13 +498,13 @@ sdhc@114000 {
/include/ "qoriq-gpio-3.dtsi"
/include/ "qoriq-usb2-mph-0.dtsi"
usb0: usb@210000 {
compatible = "fsl-usb2-mph-v2.4", "fsl-usb2-mph";
compatible = "fsl-usb2-mph-v2.5", "fsl-usb2-mph";
phy_type = "utmi";
port0;
};
/include/ "qoriq-usb2-dr-0.dtsi"
usb1: usb@211000 {
compatible = "fsl-usb2-dr-v2.4", "fsl-usb2-dr";
compatible = "fsl-usb2-dr-v2.5", "fsl-usb2-dr";
dr_mode = "host";
phy_type = "utmi";
};

48
arch/powerpc/boot/dts/t1040rdb.dts Normal file
View file

@ -0,0 +1,48 @@
/*
* T1040RDB Device Tree Source
*
* Copyright 2014 Freescale Semiconductor Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Freescale Semiconductor nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
* later version.
*
* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/include/ "fsl/t104xsi-pre.dtsi"
/include/ "t104xrdb.dtsi"
/ {
model = "fsl,T1040RDB";
compatible = "fsl,T1040RDB";
ifc: localbus@ffe124000 {
cpld@3,0 {
compatible = "fsl,t1040rdb-cpld";
};
};
};
/include/ "fsl/t1040si-post.dtsi"

48
arch/powerpc/boot/dts/t1042rdb.dts Normal file
View file

@ -0,0 +1,48 @@
/*
* T1042RDB Device Tree Source
*
* Copyright 2014 Freescale Semiconductor Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Freescale Semiconductor nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
* later version.
*
* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/include/ "fsl/t104xsi-pre.dtsi"
/include/ "t104xrdb.dtsi"
/ {
model = "fsl,T1042RDB";
compatible = "fsl,T1042RDB";
ifc: localbus@ffe124000 {
cpld@3,0 {
compatible = "fsl,t1042rdb-cpld";
};
};
};
/include/ "fsl/t1042si-post.dtsi"

57
arch/powerpc/boot/dts/t1042rdb_pi.dts Normal file
View file

@ -0,0 +1,57 @@
/*
* T1042RDB_PI Device Tree Source
*
* Copyright 2014 Freescale Semiconductor Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Freescale Semiconductor nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
* later version.
*
* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/include/ "fsl/t104xsi-pre.dtsi"
/include/ "t104xrdb.dtsi"
/ {
model = "fsl,T1042RDB_PI";
compatible = "fsl,T1042RDB_PI";
ifc: localbus@ffe124000 {
cpld@3,0 {
compatible = "fsl,t1042rdb_pi-cpld";
};
};
soc: soc@ffe000000 {
i2c@118000 {
rtc@68 {
compatible = "dallas,ds1337";
reg = <0x68>;
interrupts = <0x2 0x1 0 0>;
};
};
};
};
/include/ "fsl/t1042si-post.dtsi"

156
arch/powerpc/boot/dts/t104xrdb.dtsi Normal file
View file

@ -0,0 +1,156 @@
/*
* T1040RDB/T1042RDB Device Tree Source
*
* Copyright 2014 Freescale Semiconductor Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Freescale Semiconductor nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
* later version.
*
* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/ {
ifc: localbus@ffe124000 {
reg = <0xf 0xfe124000 0 0x2000>;
ranges = <0 0 0xf 0xe8000000 0x08000000
2 0 0xf 0xff800000 0x00010000
3 0 0xf 0xffdf0000 0x00008000>;
nor@0,0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "cfi-flash";
reg = <0x0 0x0 0x8000000>;
bank-width = <2>;
device-width = <1>;
};
nand@2,0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "fsl,ifc-nand";
reg = <0x2 0x0 0x10000>;
};
cpld@3,0 {
reg = <3 0 0x300>;
};
};
memory {
device_type = "memory";
};
dcsr: dcsr@f00000000 {
ranges = <0x00000000 0xf 0x00000000 0x01072000>;
};
soc: soc@ffe000000 {
ranges = <0x00000000 0xf 0xfe000000 0x1000000>;
reg = <0xf 0xfe000000 0 0x00001000>;
spi@110000 {
flash@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "micron,n25q512a";
reg = <0>;
spi-max-frequency = <10000000>; /* input clock */
};
};
i2c@118100 {
pca9546@77 {
compatible = "nxp,pca9546";
reg = <0x77>;
#address-cells = <1>;
#size-cells = <0>;
};
};
};
pci0: pcie@ffe240000 {
reg = <0xf 0xfe240000 0 0x10000>;
ranges = <0x02000000 0 0xe0000000 0xc 0x00000000 0x0 0x10000000
0x01000000 0 0x00000000 0xf 0xf8000000 0x0 0x00010000>;
pcie@0 {
ranges = <0x02000000 0 0xe0000000
0x02000000 0 0xe0000000
0 0x10000000
0x01000000 0 0x00000000
0x01000000 0 0x00000000
0 0x00010000>;
};
};
pci1: pcie@ffe250000 {
reg = <0xf 0xfe250000 0 0x10000>;
ranges = <0x02000000 0x0 0xe0000000 0xc 0x10000000 0x0 0x10000000
0x01000000 0x0 0x00000000 0xf 0xf8010000 0x0 0x00010000>;
pcie@0 {
ranges = <0x02000000 0 0xe0000000
0x02000000 0 0xe0000000
0 0x10000000
0x01000000 0 0x00000000
0x01000000 0 0x00000000
0 0x00010000>;
};
};
pci2: pcie@ffe260000 {
reg = <0xf 0xfe260000 0 0x10000>;
ranges = <0x02000000 0 0xe0000000 0xc 0x20000000 0 0x10000000
0x01000000 0 0x00000000 0xf 0xf8020000 0 0x00010000>;
pcie@0 {
ranges = <0x02000000 0 0xe0000000
0x02000000 0 0xe0000000
0 0x10000000
0x01000000 0 0x00000000
0x01000000 0 0x00000000
0 0x00010000>;
};
};
pci3: pcie@ffe270000 {
reg = <0xf 0xfe270000 0 0x10000>;
ranges = <0x02000000 0 0xe0000000 0xc 0x30000000 0 0x10000000
0x01000000 0 0x00000000 0xf 0xf8030000 0 0x00010000>;
pcie@0 {
ranges = <0x02000000 0 0xe0000000
0x02000000 0 0xe0000000
0 0x10000000
0x01000000 0 0x00000000
0x01000000 0 0x00000000
0 0x00010000>;
};
};
};

1
arch/powerpc/configs/cell_defconfig
View file

@ -18,6 +18,7 @@ CONFIG_OPROFILE=m
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_PPC_POWERNV is not set
# CONFIG_PPC_PSERIES is not set
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_PS3=y

1
arch/powerpc/configs/celleb_defconfig
View file

@ -15,6 +15,7 @@ CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
# CONFIG_PPC_POWERNV is not set
# CONFIG_PPC_PSERIES is not set
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_CELLEB=y

2
arch/powerpc/configs/corenet32_smp_defconfig
View file

@ -165,6 +165,8 @@ CONFIG_NFS_FS=y
CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
CONFIG_NFSD=m
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_850=y
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_UTF8=m
CONFIG_MAGIC_SYSRQ=y

46
arch/powerpc/configs/corenet64_smp_defconfig
View file

@ -50,7 +50,6 @@ CONFIG_NET_IPIP=y
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_ARPD=y
CONFIG_INET_ESP=y
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
@ -60,33 +59,17 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_MTD=y
CONFIG_MTD_OF_PARTS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLKDEVS=y
CONFIG_MTD_BLOCK=y
CONFIG_FTL=y
CONFIG_MTD_CFI=y
CONFIG_MTD_GEN_PROBE=y
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_PHYSMAP_OF=y
CONFIG_MTD_M25P80=y
CONFIG_MTD_CFI_UTIL=y
CONFIG_MTD_NAND_ECC=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_IDS=y
CONFIG_MTD_NAND_FSL_ELBC=y
CONFIG_MTD_NAND_FSL_IFC=y
CONFIG_MTD_UBI=y
CONFIG_MTD_UBI_WL_THRESHOLD=4096
CONFIG_MTD_UBI_BEB_RESERVE=1
CONFIG_PROC_DEVICETREE=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=131072
@ -102,6 +85,7 @@ CONFIG_INPUT_FF_MEMLESS=m
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_PPC_EPAPR_HV_BYTECHAN=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_MANY_PORTS=y
@ -115,7 +99,6 @@ CONFIG_SPI_GPIO=y
CONFIG_SPI_FSL_SPI=y
CONFIG_SPI_FSL_ESPI=y
# CONFIG_HWMON is not set
CONFIG_VIDEO_OUTPUT_CONTROL=y
CONFIG_USB_HID=m
CONFIG_USB=y
CONFIG_USB_MON=y
@ -124,14 +107,17 @@ CONFIG_USB_EHCI_FSL=y
CONFIG_USB_STORAGE=y
CONFIG_MMC=y
CONFIG_MMC_SDHCI=y
CONFIG_EDAC=y
CONFIG_EDAC_MM_EDAC=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_DS1307=y
CONFIG_RTC_DRV_DS1374=y
CONFIG_RTC_DRV_DS3232=y
CONFIG_EDAC=y
CONFIG_EDAC_MM_EDAC=y
CONFIG_DMADEVICES=y
CONFIG_FSL_DMA=y
CONFIG_VIRT_DRIVERS=y
CONFIG_FSL_HV_MANAGER=y
CONFIG_FSL_CORENET_CF=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_ISO9660_FS=m
@ -144,35 +130,24 @@ CONFIG_NTFS_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_HUGETLBFS=y
CONFIG_MISC_FILESYSTEMS=y
CONFIG_JFFS2_FS=y
CONFIG_JFFS2_FS_DEBUG=1
CONFIG_JFFS2_FS_WRITEBUFFER=y
CONFIG_JFFS2_ZLIB=y
CONFIG_JFFS2_RTIME=y
CONFIG_UBIFS_FS=y
CONFIG_UBIFS_FS_XATTR=y
CONFIG_UBIFS_FS_LZO=y
CONFIG_UBIFS_FS_ZLIB=y
CONFIG_NFS_FS=y
CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
CONFIG_NFSD=m
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_850=y
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_UTF8=m
CONFIG_CRC_T10DIF=y
CONFIG_CRC16=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y
CONFIG_DEBUG_INFO=y
CONFIG_FRAME_WARN=1024
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_SHIRQ=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEBUG_INFO=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_MD4=y
@ -180,4 +155,3 @@ CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_DEV_FSL_CAAM=y
CONFIG_FSL_CORENET_CF=y

1
arch/powerpc/configs/g5_defconfig
View file

@ -16,6 +16,7 @@ CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
# CONFIG_PPC_POWERNV is not set
# CONFIG_PPC_PSERIES is not set
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y

1
arch/powerpc/configs/maple_defconfig
View file

@ -16,6 +16,7 @@ CONFIG_MODULE_UNLOAD=y
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_PPC_POWERNV is not set
# CONFIG_PPC_PSERIES is not set
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_MAPLE=y

4
arch/powerpc/configs/mpc85xx_defconfig
View file

@ -213,7 +213,6 @@ CONFIG_RTC_DRV_DS1307=y
CONFIG_RTC_DRV_DS1374=y
CONFIG_RTC_DRV_DS3232=y
CONFIG_RTC_DRV_CMOS=y
CONFIG_RTC_DRV_DS1307=y
CONFIG_DMADEVICES=y
CONFIG_FSL_DMA=y
# CONFIG_NET_DMA is not set
@ -227,6 +226,9 @@ CONFIG_UDF_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=y
CONFIG_NTFS_FS=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_850=y
CONFIG_NLS_ISO8859_1=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_HUGETLBFS=y

4
arch/powerpc/configs/mpc85xx_smp_defconfig
View file

@ -214,7 +214,6 @@ CONFIG_RTC_DRV_DS1307=y
CONFIG_RTC_DRV_DS1374=y
CONFIG_RTC_DRV_DS3232=y
CONFIG_RTC_DRV_CMOS=y
CONFIG_RTC_DRV_DS1307=y
CONFIG_DMADEVICES=y
CONFIG_FSL_DMA=y
# CONFIG_NET_DMA is not set
@ -228,6 +227,9 @@ CONFIG_UDF_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=y
CONFIG_NTFS_FS=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_850=y
CONFIG_NLS_ISO8859_1=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_HUGETLBFS=y

3
arch/powerpc/configs/mpc86xx_defconfig
View file

@ -145,6 +145,9 @@ CONFIG_UDF_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=y
CONFIG_NTFS_FS=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_850=y
CONFIG_NLS_ISO8859_1=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_ADFS_FS=m

1
arch/powerpc/configs/pasemi_defconfig
View file

@ -14,6 +14,7 @@ CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_PARTITION_ADVANCED=y
CONFIG_MAC_PARTITION=y
# CONFIG_PPC_POWERNV is not set
# CONFIG_PPC_PSERIES is not set
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_PASEMI=y

1
arch/powerpc/configs/ppc64_defconfig
View file

@ -50,6 +50,7 @@ CONFIG_HZ_100=y
CONFIG_BINFMT_MISC=m
CONFIG_PPC_TRANSACTIONAL_MEM=y
CONFIG_KEXEC=y
CONFIG_CRASH_DUMP=y
CONFIG_IRQ_ALL_CPUS=y
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_SCHED_SMT=y

1
arch/powerpc/include/asm/bug.h
View file

@ -133,7 +133,6 @@ extern int do_page_fault(struct pt_regs *, unsigned long, unsigned long);
extern void bad_page_fault(struct pt_regs *, unsigned long, int);
extern void _exception(int, struct pt_regs *, int, unsigned long);
extern void die(const char *, struct pt_regs *, long);
extern void print_backtrace(unsigned long *);
#endif /* !__ASSEMBLY__ */

29
arch/powerpc/include/asm/copro.h Normal file
View file

@ -0,0 +1,29 @@
/*
* Copyright 2014 IBM Corp.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef _ASM_POWERPC_COPRO_H
#define _ASM_POWERPC_COPRO_H
struct copro_slb
{
u64 esid, vsid;
};
int copro_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
unsigned long dsisr, unsigned *flt);
int copro_calculate_slb(struct mm_struct *mm, u64 ea, struct copro_slb *slb);
#ifdef CONFIG_PPC_COPRO_BASE
void copro_flush_all_slbs(struct mm_struct *mm);
#else
static inline void copro_flush_all_slbs(struct mm_struct *mm) {}
#endif
#endif /* _ASM_POWERPC_COPRO_H */

1
arch/powerpc/include/asm/dma-mapping.h
View file

@ -135,6 +135,7 @@ static inline int dma_supported(struct device *dev, u64 mask)
extern int dma_set_mask(struct device *dev, u64 dma_mask);
extern int __dma_set_mask(struct device *dev, u64 dma_mask);
extern u64 __dma_get_required_mask(struct device *dev);
#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL)

39
arch/powerpc/include/asm/eeh.h
View file

@ -146,6 +146,11 @@ static inline struct pci_dev *eeh_dev_to_pci_dev(struct eeh_dev *edev)
return edev ? edev->pdev : NULL;
}
static inline struct eeh_pe *eeh_dev_to_pe(struct eeh_dev* edev)
{
return edev ? edev->pe : NULL;
}
/* Return values from eeh_ops::next_error */
enum {
EEH_NEXT_ERR_NONE = 0,
@ -167,6 +172,7 @@ enum {
#define EEH_OPT_ENABLE 1 /* EEH enable */
#define EEH_OPT_THAW_MMIO 2 /* MMIO enable */
#define EEH_OPT_THAW_DMA 3 /* DMA enable */
#define EEH_OPT_FREEZE_PE 4 /* Freeze PE */
#define EEH_STATE_UNAVAILABLE (1 << 0) /* State unavailable */
#define EEH_STATE_NOT_SUPPORT (1 << 1) /* EEH not supported */
#define EEH_STATE_RESET_ACTIVE (1 << 2) /* Active reset */
@ -198,6 +204,8 @@ struct eeh_ops {
int (*wait_state)(struct eeh_pe *pe, int max_wait);
int (*get_log)(struct eeh_pe *pe, int severity, char *drv_log, unsigned long len);
int (*configure_bridge)(struct eeh_pe *pe);
int (*err_inject)(struct eeh_pe *pe, int type, int func,
unsigned long addr, unsigned long mask);
int (*read_config)(struct device_node *dn, int where, int size, u32 *val);
int (*write_config)(struct device_node *dn, int where, int size, u32 val);
int (*next_error)(struct eeh_pe **pe);
@ -269,8 +277,7 @@ void eeh_dev_phb_init_dynamic(struct pci_controller *phb);
int eeh_init(void);
int __init eeh_ops_register(struct eeh_ops *ops);
int __exit eeh_ops_unregister(const char *name);
unsigned long eeh_check_failure(const volatile void __iomem *token,
unsigned long val);
int eeh_check_failure(const volatile void __iomem *token);
int eeh_dev_check_failure(struct eeh_dev *edev);
void eeh_addr_cache_build(void);
void eeh_add_device_early(struct device_node *);
@ -279,6 +286,8 @@ void eeh_add_device_late(struct pci_dev *);
void eeh_add_device_tree_late(struct pci_bus *);
void eeh_add_sysfs_files(struct pci_bus *);
void eeh_remove_device(struct pci_dev *);
int eeh_unfreeze_pe(struct eeh_pe *pe, bool sw_state);
int eeh_pe_reset_and_recover(struct eeh_pe *pe);
int eeh_dev_open(struct pci_dev *pdev);
void eeh_dev_release(struct pci_dev *pdev);
struct eeh_pe *eeh_iommu_group_to_pe(struct iommu_group *group);
@ -321,9 +330,9 @@ static inline void *eeh_dev_init(struct device_node *dn, void *data)
static inline void eeh_dev_phb_init_dynamic(struct pci_controller *phb) { }
static inline unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned long val)
static inline int eeh_check_failure(const volatile void __iomem *token)
{
return val;
return 0;
}
#define eeh_dev_check_failure(x) (0)
@ -354,7 +363,7 @@ static inline u8 eeh_readb(const volatile void __iomem *addr)
{
u8 val = in_8(addr);
if (EEH_POSSIBLE_ERROR(val, u8))
return eeh_check_failure(addr, val);
eeh_check_failure(addr);
return val;
}
@ -362,7 +371,7 @@ static inline u16 eeh_readw(const volatile void __iomem *addr)
{
u16 val = in_le16(addr);
if (EEH_POSSIBLE_ERROR(val, u16))
return eeh_check_failure(addr, val);
eeh_check_failure(addr);
return val;
}
@ -370,7 +379,7 @@ static inline u32 eeh_readl(const volatile void __iomem *addr)
{
u32 val = in_le32(addr);
if (EEH_POSSIBLE_ERROR(val, u32))
return eeh_check_failure(addr, val);
eeh_check_failure(addr);
return val;
}
@ -378,7 +387,7 @@ static inline u64 eeh_readq(const volatile void __iomem *addr)
{
u64 val = in_le64(addr);
if (EEH_POSSIBLE_ERROR(val, u64))
return eeh_check_failure(addr, val);
eeh_check_failure(addr);
return val;
}
@ -386,7 +395,7 @@ static inline u16 eeh_readw_be(const volatile void __iomem *addr)
{
u16 val = in_be16(addr);
if (EEH_POSSIBLE_ERROR(val, u16))
return eeh_check_failure(addr, val);
eeh_check_failure(addr);
return val;
}
@ -394,7 +403,7 @@ static inline u32 eeh_readl_be(const volatile void __iomem *addr)
{
u32 val = in_be32(addr);
if (EEH_POSSIBLE_ERROR(val, u32))
return eeh_check_failure(addr, val);
eeh_check_failure(addr);
return val;
}
@ -402,7 +411,7 @@ static inline u64 eeh_readq_be(const volatile void __iomem *addr)
{
u64 val = in_be64(addr);
if (EEH_POSSIBLE_ERROR(val, u64))
return eeh_check_failure(addr, val);
eeh_check_failure(addr);
return val;
}
@ -416,7 +425,7 @@ static inline void eeh_memcpy_fromio(void *dest, const
* were copied. Check all four bytes.
*/
if (n >= 4 && EEH_POSSIBLE_ERROR(*((u32 *)(dest + n - 4)), u32))
eeh_check_failure(src, *((u32 *)(dest + n - 4)));
eeh_check_failure(src);
}
/* in-string eeh macros */
@ -425,7 +434,7 @@ static inline void eeh_readsb(const volatile void __iomem *addr, void * buf,
{
_insb(addr, buf, ns);
if (EEH_POSSIBLE_ERROR((*(((u8*)buf)+ns-1)), u8))
eeh_check_failure(addr, *(u8*)buf);
eeh_check_failure(addr);
}
static inline void eeh_readsw(const volatile void __iomem *addr, void * buf,
@ -433,7 +442,7 @@ static inline void eeh_readsw(const volatile void __iomem *addr, void * buf,
{
_insw(addr, buf, ns);
if (EEH_POSSIBLE_ERROR((*(((u16*)buf)+ns-1)), u16))
eeh_check_failure(addr, *(u16*)buf);
eeh_check_failure(addr);
}
static inline void eeh_readsl(const volatile void __iomem *addr, void * buf,
@ -441,7 +450,7 @@ static inline void eeh_readsl(const volatile void __iomem *addr, void * buf,
{
_insl(addr, buf, nl);
if (EEH_POSSIBLE_ERROR((*(((u32*)buf)+nl-1)), u32))
eeh_check_failure(addr, *(u32*)buf);
eeh_check_failure(addr);
}
#endif /* CONFIG_PPC64 */

1
arch/powerpc/include/asm/hydra.h
View file

@ -95,7 +95,6 @@ extern volatile struct Hydra __iomem *Hydra;
#define HYDRA_INT_SPARE 19
extern int hydra_init(void);
extern void macio_adb_init(void);
#endif /* __KERNEL__ */

5
arch/powerpc/include/asm/irq.h
View file

@ -31,11 +31,6 @@ extern atomic_t ppc_n_lost_interrupts;
extern irq_hw_number_t virq_to_hw(unsigned int virq);
/**
* irq_early_init - Init irq remapping subsystem
*/
extern void irq_early_init(void);
static __inline__ int irq_canonicalize(int irq)
{
return irq;

1
arch/powerpc/include/asm/kexec.h
View file

@ -81,7 +81,6 @@ extern void default_machine_crash_shutdown(struct pt_regs *regs);
extern int crash_shutdown_register(crash_shutdown_t handler);
extern int crash_shutdown_unregister(crash_shutdown_t handler);
extern void machine_kexec_simple(struct kimage *image);
extern void crash_kexec_secondary(struct pt_regs *regs);
extern int overlaps_crashkernel(unsigned long start, unsigned long size);
extern void reserve_crashkernel(void);

2
arch/powerpc/include/asm/machdep.h
View file

@ -328,8 +328,6 @@ extern struct machdep_calls *machine_id;
extern void probe_machine(void);
extern char cmd_line[COMMAND_LINE_SIZE];
#ifdef CONFIG_PPC_PMAC
/*
* Power macintoshes have either a CUDA, PMU or SMU controlling

10
arch/powerpc/include/asm/mmu-hash64.h
View file

@ -190,6 +190,13 @@ static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize)
#ifndef __ASSEMBLY__
static inline int slb_vsid_shift(int ssize)
{
if (ssize == MMU_SEGSIZE_256M)
return SLB_VSID_SHIFT;
return SLB_VSID_SHIFT_1T;
}
static inline int segment_shift(int ssize)
{
if (ssize == MMU_SEGSIZE_256M)
@ -317,6 +324,7 @@ extern int __hash_page_64K(unsigned long ea, unsigned long access,
unsigned int local, int ssize);
struct mm_struct;
unsigned int hash_page_do_lazy_icache(unsigned int pp, pte_t pte, int trap);
extern int hash_page_mm(struct mm_struct *mm, unsigned long ea, unsigned long access, unsigned long trap);
extern int hash_page(unsigned long ea, unsigned long access, unsigned long trap);
int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid,
pte_t *ptep, unsigned long trap, int local, int ssize,
@ -342,6 +350,8 @@ extern void hash_failure_debug(unsigned long ea, unsigned long access,
extern int htab_bolt_mapping(unsigned long vstart, unsigned long vend,
unsigned long pstart, unsigned long prot,
int psize, int ssize);
int htab_remove_mapping(unsigned long vstart, unsigned long vend,
int psize, int ssize);
extern void add_gpage(u64 addr, u64 page_size, unsigned long number_of_pages);
extern void demote_segment_4k(struct mm_struct *mm, unsigned long addr);

45
arch/powerpc/include/asm/opal.h
View file

@ -135,6 +135,7 @@ struct opal_sg_list {
#define OPAL_FLASH_MANAGE 77
#define OPAL_FLASH_UPDATE 78
#define OPAL_RESYNC_TIMEBASE 79
#define OPAL_CHECK_TOKEN 80
#define OPAL_DUMP_INIT 81
#define OPAL_DUMP_INFO 82
#define OPAL_DUMP_READ 83
@ -146,7 +147,9 @@ struct opal_sg_list {
#define OPAL_GET_PARAM 89
#define OPAL_SET_PARAM 90
#define OPAL_DUMP_RESEND 91
#define OPAL_PCI_SET_PHB_CXL_MODE 93
#define OPAL_DUMP_INFO2 94
#define OPAL_PCI_ERR_INJECT 96
#define OPAL_PCI_EEH_FREEZE_SET 97
#define OPAL_HANDLE_HMI 98
#define OPAL_REGISTER_DUMP_REGION 101
@ -199,6 +202,35 @@ enum OpalPciErrorSeverity {
OPAL_EEH_SEV_INF = 5
};
enum OpalErrinjectType {
OPAL_ERR_INJECT_TYPE_IOA_BUS_ERR = 0,
OPAL_ERR_INJECT_TYPE_IOA_BUS_ERR64 = 1,
};
enum OpalErrinjectFunc {
/* IOA bus specific errors */
OPAL_ERR_INJECT_FUNC_IOA_LD_MEM_ADDR = 0,
OPAL_ERR_INJECT_FUNC_IOA_LD_MEM_DATA = 1,
OPAL_ERR_INJECT_FUNC_IOA_LD_IO_ADDR = 2,
OPAL_ERR_INJECT_FUNC_IOA_LD_IO_DATA = 3,
OPAL_ERR_INJECT_FUNC_IOA_LD_CFG_ADDR = 4,
OPAL_ERR_INJECT_FUNC_IOA_LD_CFG_DATA = 5,
OPAL_ERR_INJECT_FUNC_IOA_ST_MEM_ADDR = 6,
OPAL_ERR_INJECT_FUNC_IOA_ST_MEM_DATA = 7,
OPAL_ERR_INJECT_FUNC_IOA_ST_IO_ADDR = 8,
OPAL_ERR_INJECT_FUNC_IOA_ST_IO_DATA = 9,
OPAL_ERR_INJECT_FUNC_IOA_ST_CFG_ADDR = 10,
OPAL_ERR_INJECT_FUNC_IOA_ST_CFG_DATA = 11,
OPAL_ERR_INJECT_FUNC_IOA_DMA_RD_ADDR = 12,
OPAL_ERR_INJECT_FUNC_IOA_DMA_RD_DATA = 13,
OPAL_ERR_INJECT_FUNC_IOA_DMA_RD_MASTER = 14,
OPAL_ERR_INJECT_FUNC_IOA_DMA_RD_TARGET = 15,
OPAL_ERR_INJECT_FUNC_IOA_DMA_WR_ADDR = 16,
OPAL_ERR_INJECT_FUNC_IOA_DMA_WR_DATA = 17,
OPAL_ERR_INJECT_FUNC_IOA_DMA_WR_MASTER = 18,
OPAL_ERR_INJECT_FUNC_IOA_DMA_WR_TARGET = 19,
};
enum OpalShpcAction {
OPAL_SHPC_GET_LINK_STATE = 0,
OPAL_SHPC_GET_SLOT_STATE = 1
@ -356,9 +388,12 @@ enum OpalM64EnableAction {
};
enum OpalPciResetScope {
OPAL_PHB_COMPLETE = 1, OPAL_PCI_LINK = 2, OPAL_PHB_ERROR = 3,
OPAL_PCI_HOT_RESET = 4, OPAL_PCI_FUNDAMENTAL_RESET = 5,
OPAL_PCI_IODA_TABLE_RESET = 6,
OPAL_RESET_PHB_COMPLETE = 1,
OPAL_RESET_PCI_LINK = 2,
OPAL_RESET_PHB_ERROR = 3,
OPAL_RESET_PCI_HOT = 4,
OPAL_RESET_PCI_FUNDAMENTAL = 5,
OPAL_RESET_PCI_IODA_TABLE = 6
};
enum OpalPciReinitScope {
@ -819,6 +854,8 @@ int64_t opal_pci_eeh_freeze_clear(uint64_t phb_id, uint64_t pe_number,
uint64_t eeh_action_token);
int64_t opal_pci_eeh_freeze_set(uint64_t phb_id, uint64_t pe_number,
uint64_t eeh_action_token);
int64_t opal_pci_err_inject(uint64_t phb_id, uint32_t pe_no, uint32_t type,
uint32_t func, uint64_t addr, uint64_t mask);
int64_t opal_pci_shpc(uint64_t phb_id, uint64_t shpc_action, uint8_t *state);
@ -887,6 +924,7 @@ int64_t opal_pci_next_error(uint64_t phb_id, __be64 *first_frozen_pe,
__be16 *pci_error_type, __be16 *severity);
int64_t opal_pci_poll(uint64_t phb_id);
int64_t opal_return_cpu(void);
int64_t opal_check_token(uint64_t token);
int64_t opal_reinit_cpus(uint64_t flags);
int64_t opal_xscom_read(uint32_t gcid, uint64_t pcb_addr, __be64 *val);
@ -924,6 +962,7 @@ int64_t opal_sensor_read(uint32_t sensor_hndl, int token, __be32 *sensor_data);
int64_t opal_handle_hmi(void);
int64_t opal_register_dump_region(uint32_t id, uint64_t start, uint64_t end);
int64_t opal_unregister_dump_region(uint32_t id);
int64_t opal_pci_set_phb_cxl_mode(uint64_t phb_id, uint64_t mode, uint64_t pe_number);
/* Internal functions */
extern int early_init_dt_scan_opal(unsigned long node, const char *uname,

39
arch/powerpc/include/asm/page_64.h
View file

@ -42,20 +42,40 @@
typedef unsigned long pte_basic_t;
static __inline__ void clear_page(void *addr)
static inline void clear_page(void *addr)
{
unsigned long lines, line_size;
unsigned long iterations;
unsigned long onex, twox, fourx, eightx;
line_size = ppc64_caches.dline_size;
lines = ppc64_caches.dlines_per_page;
iterations = ppc64_caches.dlines_per_page / 8;
__asm__ __volatile__(
/*
* Some verisions of gcc use multiply instructions to
* calculate the offsets so lets give it a hand to
* do better.
*/
onex = ppc64_caches.dline_size;
twox = onex << 1;
fourx = onex << 2;
eightx = onex << 3;
asm volatile(
"mtctr %1 # clear_page\n\
1: dcbz 0,%0\n\
add %0,%0,%3\n\
.balign 16\n\
1: dcbz 0,%0\n\
dcbz %3,%0\n\
dcbz %4,%0\n\
dcbz %5,%0\n\
dcbz %6,%0\n\
dcbz %7,%0\n\
dcbz %8,%0\n\
dcbz %9,%0\n\
add %0,%0,%10\n\
bdnz+ 1b"
: "=r" (addr)
: "r" (lines), "0" (addr), "r" (line_size)
: "=&r" (addr)
: "r" (iterations), "0" (addr), "b" (onex), "b" (twox),
"b" (twox+onex), "b" (fourx), "b" (fourx+onex),
"b" (twox+fourx), "b" (eightx-onex), "r" (eightx)
: "ctr", "memory");
}
@ -104,7 +124,6 @@ extern unsigned long slice_get_unmapped_area(unsigned long addr,
extern unsigned int get_slice_psize(struct mm_struct *mm,
unsigned long addr);
extern void slice_init_context(struct mm_struct *mm, unsigned int psize);
extern void slice_set_user_psize(struct mm_struct *mm, unsigned int psize);
extern void slice_set_range_psize(struct mm_struct *mm, unsigned long start,
unsigned long len, unsigned int psize);

6
arch/powerpc/include/asm/pgtable-ppc32.h
View file

@ -8,8 +8,6 @@
#include <linux/threads.h>
#include <asm/io.h> /* For sub-arch specific PPC_PIN_SIZE */
extern unsigned long va_to_phys(unsigned long address);
extern pte_t *va_to_pte(unsigned long address);
extern unsigned long ioremap_bot;
#ifdef CONFIG_44x
@ -50,10 +48,10 @@ extern int icache_44x_need_flush;
#define FIRST_USER_ADDRESS 0
#define pte_ERROR(e) \
printk("%s:%d: bad pte %llx.\n", __FILE__, __LINE__, \
pr_err("%s:%d: bad pte %llx.\n", __FILE__, __LINE__, \
(unsigned long long)pte_val(e))
#define pgd_ERROR(e) \
printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
pr_err("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
/*
* This is the bottom of the PKMAP area with HIGHMEM or an arbitrary

2
arch/powerpc/include/asm/pgtable-ppc64-4k.h
View file

@ -64,7 +64,7 @@
(((addr) >> PUD_SHIFT) & (PTRS_PER_PUD - 1)))
#define pud_ERROR(e) \
printk("%s:%d: bad pud %08lx.\n", __FILE__, __LINE__, pud_val(e))
pr_err("%s:%d: bad pud %08lx.\n", __FILE__, __LINE__, pud_val(e))
/*
* On all 4K setups, remap_4k_pfn() equates to remap_pfn_range() */

6
arch/powerpc/include/asm/pgtable-ppc64.h
View file

@ -328,11 +328,11 @@ static inline void __ptep_set_access_flags(pte_t *ptep, pte_t entry)
#define pte_same(A,B) (((pte_val(A) ^ pte_val(B)) & ~_PAGE_HPTEFLAGS) == 0)
#define pte_ERROR(e) \
printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
pr_err("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
#define pmd_ERROR(e) \
printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, pmd_val(e))
pr_err("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, pmd_val(e))
#define pgd_ERROR(e) \
printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
pr_err("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
/* Encode and de-code a swap entry */
#define __swp_type(entry) (((entry).val >> 1) & 0x3f)

3
arch/powerpc/include/asm/pgtable.h
View file

@ -4,6 +4,7 @@
#ifndef __ASSEMBLY__
#include <linux/mmdebug.h>
#include <linux/mmzone.h>
#include <asm/processor.h> /* For TASK_SIZE */
#include <asm/mmu.h>
#include <asm/page.h>
@ -248,6 +249,8 @@ extern unsigned long empty_zero_page[];
extern pgd_t swapper_pg_dir[];
void limit_zone_pfn(enum zone_type zone, unsigned long max_pfn);
int dma_pfn_limit_to_zone(u64 pfn_limit);
extern void paging_init(void);
/*

12
arch/powerpc/include/asm/plpar_wrappers.h
View file

@ -273,7 +273,7 @@ static inline long plpar_set_mode(unsigned long mflags, unsigned long resource,
static inline long enable_reloc_on_exceptions(void)
{
/* mflags = 3: Exceptions at 0xC000000000004000 */
return plpar_set_mode(3, 3, 0, 0);
return plpar_set_mode(3, H_SET_MODE_RESOURCE_ADDR_TRANS_MODE, 0, 0);
}
/*
@ -284,7 +284,7 @@ static inline long enable_reloc_on_exceptions(void)
* returns H_SUCCESS.
*/
static inline long disable_reloc_on_exceptions(void) {
return plpar_set_mode(0, 3, 0, 0);
return plpar_set_mode(0, H_SET_MODE_RESOURCE_ADDR_TRANS_MODE, 0, 0);
}
/*
@ -297,7 +297,7 @@ static inline long disable_reloc_on_exceptions(void) {
static inline long enable_big_endian_exceptions(void)
{
/* mflags = 0: big endian exceptions */
return plpar_set_mode(0, 4, 0, 0);
return plpar_set_mode(0, H_SET_MODE_RESOURCE_LE, 0, 0);
}
/*
@ -310,17 +310,17 @@ static inline long enable_big_endian_exceptions(void)
static inline long enable_little_endian_exceptions(void)
{
/* mflags = 1: little endian exceptions */
return plpar_set_mode(1, 4, 0, 0);
return plpar_set_mode(1, H_SET_MODE_RESOURCE_LE, 0, 0);
}
static inline long plapr_set_ciabr(unsigned long ciabr)
{
return plpar_set_mode(0, 1, ciabr, 0);
return plpar_set_mode(0, H_SET_MODE_RESOURCE_SET_CIABR, ciabr, 0);
}
static inline long plapr_set_watchpoint0(unsigned long dawr0, unsigned long dawrx0)
{
return plpar_set_mode(0, 2, dawr0, dawrx0);
return plpar_set_mode(0, H_SET_MODE_RESOURCE_SET_DAWR, dawr0, dawrx0);
}
#endif /* _ASM_POWERPC_PLPAR_WRAPPERS_H */

31
arch/powerpc/include/asm/pnv-pci.h Normal file
View file

@ -0,0 +1,31 @@
/*
* Copyright 2014 IBM Corp.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef _ASM_PNV_PCI_H
#define _ASM_PNV_PCI_H
#include <linux/pci.h>
#include <misc/cxl.h>
int pnv_phb_to_cxl(struct pci_dev *dev);
int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq,
unsigned int virq);
int pnv_cxl_alloc_hwirqs(struct pci_dev *dev, int num);
void pnv_cxl_release_hwirqs(struct pci_dev *dev, int hwirq, int num);
int pnv_cxl_get_irq_count(struct pci_dev *dev);
struct device_node *pnv_pci_to_phb_node(struct pci_dev *dev);
#ifdef CONFIG_CXL_BASE
int pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs,
struct pci_dev *dev, int num);
void pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs,
struct pci_dev *dev);
#endif
#endif

2
arch/powerpc/include/asm/prom.h
View file

@ -76,8 +76,6 @@ void of_parse_dma_window(struct device_node *dn, const __be32 *dma_window,
unsigned long *busno, unsigned long *phys,
unsigned long *size);
extern void kdump_move_device_tree(void);
extern void of_instantiate_rtc(void);
extern int of_get_ibm_chip_id(struct device_node *np);

3
arch/powerpc/include/asm/reg.h
View file

@ -947,7 +947,7 @@
* 32-bit 8xx:
* - SPRG0 scratch for exception vectors
* - SPRG1 scratch for exception vectors
* - SPRG2 apparently unused but initialized
* - SPRG2 scratch for exception vectors
*
*/
#ifdef CONFIG_PPC64
@ -1057,6 +1057,7 @@
#ifdef CONFIG_8xx
#define SPRN_SPRG_SCRATCH0 SPRN_SPRG0
#define SPRN_SPRG_SCRATCH1 SPRN_SPRG1
#define SPRN_SPRG_SCRATCH2 SPRN_SPRG2
#endif

1
arch/powerpc/include/asm/rio.h
View file

@ -13,7 +13,6 @@
#ifndef ASM_PPC_RIO_H
#define ASM_PPC_RIO_H
extern void platform_rio_init(void);
#ifdef CONFIG_FSL_RIO
extern int fsl_rio_mcheck_exception(struct pt_regs *);
#else

5
arch/powerpc/include/asm/spu.h
View file

@ -27,6 +27,8 @@
#include <linux/workqueue.h>
#include <linux/device.h>
#include <linux/mutex.h>
#include <asm/reg.h>
#include <asm/copro.h>
#define LS_SIZE (256 * 1024)
#define LS_ADDR_MASK (LS_SIZE - 1)
@ -277,9 +279,6 @@ void spu_remove_dev_attr(struct device_attribute *attr);
int spu_add_dev_attr_group(struct attribute_group *attrs);
void spu_remove_dev_attr_group(struct attribute_group *attrs);
int spu_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
unsigned long dsisr, unsigned *flt);
/*
* Notifier blocks:
*

62
arch/powerpc/include/asm/sstep.h
View file

@ -25,3 +25,65 @@ struct pt_regs;
/* Emulate instructions that cause a transfer of control. */
extern int emulate_step(struct pt_regs *regs, unsigned int instr);
enum instruction_type {
COMPUTE, /* arith/logical/CR op, etc. */
LOAD,
LOAD_MULTI,
LOAD_FP,
LOAD_VMX,
LOAD_VSX,
STORE,
STORE_MULTI,
STORE_FP,
STORE_VMX,
STORE_VSX,
LARX,
STCX,
BRANCH,
MFSPR,
MTSPR,
CACHEOP,
BARRIER,
SYSCALL,
MFMSR,
MTMSR,
RFI,
INTERRUPT,
UNKNOWN
};
#define INSTR_TYPE_MASK 0x1f
/* Load/store flags, ORed in with type */
#define SIGNEXT 0x20
#define UPDATE 0x40 /* matches bit in opcode 31 instructions */
#define BYTEREV 0x80
/* Cacheop values, ORed in with type */
#define CACHEOP_MASK 0x700
#define DCBST 0
#define DCBF 0x100
#define DCBTST 0x200
#define DCBT 0x300
#define ICBI 0x400
/* Size field in type word */
#define SIZE(n) ((n) << 8)
#define GETSIZE(w) ((w) >> 8)
#define MKOP(t, f, s) ((t) | (f) | SIZE(s))
struct instruction_op {
int type;
int reg;
unsigned long val;
/* For LOAD/STORE/LARX/STCX */
unsigned long ea;
int update_reg;
/* For MFSPR */
int spr;
};
extern int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
unsigned int instr);

4
arch/powerpc/include/asm/tsi108.h
View file

@ -84,10 +84,6 @@
extern u32 tsi108_pci_cfg_base;
/* Exported functions */
extern int tsi108_bridge_init(struct pci_controller *hose, uint phys_csr_base);
extern unsigned long tsi108_get_mem_size(void);
extern unsigned long tsi108_get_cpu_clk(void);
extern unsigned long tsi108_get_sdc_clk(void);
extern int tsi108_direct_write_config(struct pci_bus *bus, unsigned int devfn,
int offset, int len, u32 val);
extern int tsi108_direct_read_config(struct pci_bus *bus, unsigned int devfn,

1
arch/powerpc/include/asm/udbg.h
View file

@ -52,7 +52,6 @@ extern void __init udbg_init_44x_as1(void);
extern void __init udbg_init_40x_realmode(void);
extern void __init udbg_init_cpm(void);
extern void __init udbg_init_usbgecko(void);
extern void __init udbg_init_wsp(void);
extern void __init udbg_init_memcons(void);
extern void __init udbg_init_ehv_bc(void);
extern void __init udbg_init_ps3gelic(void);

128
arch/powerpc/include/asm/word-at-a-time.h
View file

@ -42,32 +42,65 @@ static inline bool has_zero(unsigned long val, unsigned long *data, const struct
#else
#ifdef CONFIG_64BIT
/* unused */
struct word_at_a_time {
};
#define WORD_AT_A_TIME_CONSTANTS { }
/* This will give us 0xff for a NULL char and 0x00 elsewhere */
static inline unsigned long has_zero(unsigned long a, unsigned long *bits, const struct word_at_a_time *c)
{
unsigned long ret;
unsigned long zero = 0;
asm("cmpb %0,%1,%2" : "=r" (ret) : "r" (a), "r" (zero));
*bits = ret;
return ret;
}
static inline unsigned long prep_zero_mask(unsigned long a, unsigned long bits, const struct word_at_a_time *c)
{
return bits;
}
/* Alan Modra's little-endian strlen tail for 64-bit */
static inline unsigned long create_zero_mask(unsigned long bits)
{
unsigned long leading_zero_bits;
long trailing_zero_bit_mask;
asm("addi %1,%2,-1\n\t"
"andc %1,%1,%2\n\t"
"popcntd %0,%1"
: "=r" (leading_zero_bits), "=&r" (trailing_zero_bit_mask)
: "r" (bits));
return leading_zero_bits;
}
static inline unsigned long find_zero(unsigned long mask)
{
return mask >> 3;
}
/* This assumes that we never ask for an all 1s bitmask */
static inline unsigned long zero_bytemask(unsigned long mask)
{
return (1UL << mask) - 1;
}
#else /* 32-bit case */
struct word_at_a_time {
const unsigned long one_bits, high_bits;
};
#define WORD_AT_A_TIME_CONSTANTS { REPEAT_BYTE(0x01), REPEAT_BYTE(0x80) }
#ifdef CONFIG_64BIT
/* Alan Modra's little-endian strlen tail for 64-bit */
#define create_zero_mask(mask) (mask)
static inline unsigned long find_zero(unsigned long mask)
{
unsigned long leading_zero_bits;
long trailing_zero_bit_mask;
asm ("addi %1,%2,-1\n\t"
"andc %1,%1,%2\n\t"
"popcntd %0,%1"
: "=r" (leading_zero_bits), "=&r" (trailing_zero_bit_mask)
: "r" (mask));
return leading_zero_bits >> 3;
}
#else /* 32-bit case */
/*
* This is largely generic for little-endian machines, but the
* optimal byte mask counting is probably going to be something
@ -96,8 +129,6 @@ static inline unsigned long find_zero(unsigned long mask)
return count_masked_bytes(mask);
}
#endif
/* Return nonzero if it has a zero */
static inline unsigned long has_zero(unsigned long a, unsigned long *bits, const struct word_at_a_time *c)
{
@ -114,6 +145,59 @@ static inline unsigned long prep_zero_mask(unsigned long a, unsigned long bits,
/* The mask we created is directly usable as a bytemask */
#define zero_bytemask(mask) (mask)
#endif /* CONFIG_64BIT */
#endif /* __BIG_ENDIAN__ */
/*
* We use load_unaligned_zero() in a selftest, which builds a userspace
* program. Some linker scripts seem to discard the .fixup section, so allow
* the test code to use a different section name.
*/
#ifndef FIXUP_SECTION
#define FIXUP_SECTION ".fixup"
#endif
static inline unsigned long load_unaligned_zeropad(const void *addr)
{
unsigned long ret, offset, tmp;
asm(
"1: " PPC_LL "%[ret], 0(%[addr])\n"
"2:\n"
".section " FIXUP_SECTION ",\"ax\"\n"
"3: "
#ifdef __powerpc64__
"clrrdi %[tmp], %[addr], 3\n\t"
"clrlsldi %[offset], %[addr], 61, 3\n\t"
"ld %[ret], 0(%[tmp])\n\t"
#ifdef __BIG_ENDIAN__
"sld %[ret], %[ret], %[offset]\n\t"
#else
"srd %[ret], %[ret], %[offset]\n\t"
#endif
#else
"clrrwi %[tmp], %[addr], 2\n\t"
"clrlslwi %[offset], %[addr], 30, 3\n\t"
"lwz %[ret], 0(%[tmp])\n\t"
#ifdef __BIG_ENDIAN__
"slw %[ret], %[ret], %[offset]\n\t"
#else
"srw %[ret], %[ret], %[offset]\n\t"
#endif
#endif
"b 2b\n"
".previous\n"
".section __ex_table,\"a\"\n\t"
PPC_LONG_ALIGN "\n\t"
PPC_LONG "1b,3b\n"
".previous"
: [tmp] "=&b" (tmp), [offset] "=&r" (offset), [ret] "=&r" (ret)
: [addr] "b" (addr), "m" (*(unsigned long *)addr));
return ret;
}
#undef FIXUP_SECTION
#endif /* _ASM_WORD_AT_A_TIME_H */

1
arch/powerpc/include/asm/xics.h
View file

@ -29,6 +29,7 @@
/* Native ICP */
#ifdef CONFIG_PPC_ICP_NATIVE
extern int icp_native_init(void);
extern void icp_native_flush_interrupt(void);
#else
static inline int icp_native_init(void) { return -ENODEV; }
#endif

3
arch/powerpc/kernel/Makefile
View file

@ -93,6 +93,9 @@ obj-$(CONFIG_PPC32) += entry_32.o setup_32.o
obj-$(CONFIG_PPC64) += dma-iommu.o iommu.o
obj-$(CONFIG_KGDB) += kgdb.o
obj-$(CONFIG_MODULES) += ppc_ksyms.o
ifeq ($(CONFIG_PPC32),y)
obj-$(CONFIG_MODULES) += ppc_ksyms_32.o
endif
obj-$(CONFIG_BOOTX_TEXT) += btext.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_KPROBES) += kprobes.o

1
arch/powerpc/kernel/crash_dump.c
View file

@ -13,6 +13,7 @@
#include <linux/crash_dump.h>
#include <linux/bootmem.h>
#include <linux/io.h>
#include <linux/memblock.h>
#include <asm/code-patching.h>
#include <asm/kdump.h>

8
arch/powerpc/kernel/dma-swiotlb.c
View file

@ -106,10 +106,14 @@ int __init swiotlb_setup_bus_notifier(void)
return 0;
}
void swiotlb_detect_4g(void)
void __init swiotlb_detect_4g(void)
{
if ((memblock_end_of_DRAM() - 1) > 0xffffffff)
if ((memblock_end_of_DRAM() - 1) > 0xffffffff) {
ppc_swiotlb_enable = 1;
#ifdef CONFIG_ZONE_DMA32
limit_zone_pfn(ZONE_DMA32, (1ULL << 32) >> PAGE_SHIFT);
#endif
}
}
static int __init swiotlb_late_init(void)

47
arch/powerpc/kernel/dma.c
View file

@ -15,6 +15,7 @@
#include <asm/vio.h>
#include <asm/bug.h>
#include <asm/machdep.h>
#include <asm/swiotlb.h>
/*
* Generic direct DMA implementation
@ -25,6 +26,18 @@
* default the offset is PCI_DRAM_OFFSET.
*/
static u64 __maybe_unused get_pfn_limit(struct device *dev)
{
u64 pfn = (dev->coherent_dma_mask >> PAGE_SHIFT) + 1;
struct dev_archdata __maybe_unused *sd = &dev->archdata;
#ifdef CONFIG_SWIOTLB
if (sd->max_direct_dma_addr && sd->dma_ops == &swiotlb_dma_ops)
pfn = min_t(u64, pfn, sd->max_direct_dma_addr >> PAGE_SHIFT);
#endif
return pfn;
}
void *dma_direct_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag,
@ -40,6 +53,26 @@ void *dma_direct_alloc_coherent(struct device *dev, size_t size,
#else
struct page *page;
int node = dev_to_node(dev);
u64 pfn = get_pfn_limit(dev);
int zone;
zone = dma_pfn_limit_to_zone(pfn);
if (zone < 0) {
dev_err(dev, "%s: No suitable zone for pfn %#llx\n",
__func__, pfn);
return NULL;
}
switch (zone) {
case ZONE_DMA:
flag |= GFP_DMA;
break;
#ifdef CONFIG_ZONE_DMA32
case ZONE_DMA32:
flag |= GFP_DMA32;
break;
#endif
};
/* ignore region specifiers */
flag &= ~(__GFP_HIGHMEM);
@ -202,6 +235,7 @@ int __dma_set_mask(struct device *dev, u64 dma_mask)
*dev->dma_mask = dma_mask;
return 0;
}
int dma_set_mask(struct device *dev, u64 dma_mask)
{
if (ppc_md.dma_set_mask)
@ -210,13 +244,10 @@ int dma_set_mask(struct device *dev, u64 dma_mask)
}
EXPORT_SYMBOL(dma_set_mask);
u64 dma_get_required_mask(struct device *dev)
u64 __dma_get_required_mask(struct device *dev)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
if (ppc_md.dma_get_required_mask)
return ppc_md.dma_get_required_mask(dev);
if (unlikely(dma_ops == NULL))
return 0;
@ -225,6 +256,14 @@ u64 dma_get_required_mask(struct device *dev)
return DMA_BIT_MASK(8 * sizeof(dma_addr_t));
}
u64 dma_get_required_mask(struct device *dev)
{
if (ppc_md.dma_get_required_mask)
return ppc_md.dma_get_required_mask(dev);
return __dma_get_required_mask(dev);
}
EXPORT_SYMBOL_GPL(dma_get_required_mask);
static int __init dma_init(void)

269
arch/powerpc/kernel/eeh.c
View file

@ -117,7 +117,7 @@ static DEFINE_MUTEX(eeh_dev_mutex);
* not dynamically alloced, so that it ends up in RMO where RTAS
* can access it.
*/
#define EEH_PCI_REGS_LOG_LEN 4096
#define EEH_PCI_REGS_LOG_LEN 8192
static unsigned char pci_regs_buf[EEH_PCI_REGS_LOG_LEN];
/*
@ -148,16 +148,12 @@ static int __init eeh_setup(char *str)
}
__setup("eeh=", eeh_setup);
/**
* eeh_gather_pci_data - Copy assorted PCI config space registers to buff
* @edev: device to report data for
* @buf: point to buffer in which to log
* @len: amount of room in buffer
*
* This routine captures assorted PCI configuration space data,
* and puts them into a buffer for RTAS error logging.
/*
* This routine captures assorted PCI configuration space data
* for the indicated PCI device, and puts them into a buffer
* for RTAS error logging.
*/
static size_t eeh_gather_pci_data(struct eeh_dev *edev, char *buf, size_t len)
static size_t eeh_dump_dev_log(struct eeh_dev *edev, char *buf, size_t len)
{
struct device_node *dn = eeh_dev_to_of_node(edev);
u32 cfg;
@ -255,6 +251,19 @@ static size_t eeh_gather_pci_data(struct eeh_dev *edev, char *buf, size_t len)
return n;
}
static void *eeh_dump_pe_log(void *data, void *flag)
{
struct eeh_pe *pe = data;
struct eeh_dev *edev, *tmp;
size_t *plen = flag;
eeh_pe_for_each_dev(pe, edev, tmp)
*plen += eeh_dump_dev_log(edev, pci_regs_buf + *plen,
EEH_PCI_REGS_LOG_LEN - *plen);
return NULL;
}
/**
* eeh_slot_error_detail - Generate combined log including driver log and error log
* @pe: EEH PE
@ -268,7 +277,6 @@ static size_t eeh_gather_pci_data(struct eeh_dev *edev, char *buf, size_t len)
void eeh_slot_error_detail(struct eeh_pe *pe, int severity)
{
size_t loglen = 0;
struct eeh_dev *edev, *tmp;
/*
* When the PHB is fenced or dead, it's pointless to collect
@ -286,10 +294,7 @@ void eeh_slot_error_detail(struct eeh_pe *pe, int severity)
eeh_pe_restore_bars(pe);
pci_regs_buf[0] = 0;
eeh_pe_for_each_dev(pe, edev, tmp) {
loglen += eeh_gather_pci_data(edev, pci_regs_buf + loglen,
EEH_PCI_REGS_LOG_LEN - loglen);
}
eeh_pe_traverse(pe, eeh_dump_pe_log, &loglen);
}
eeh_ops->get_log(pe, severity, pci_regs_buf, loglen);
@ -410,7 +415,7 @@ int eeh_dev_check_failure(struct eeh_dev *edev)
}
dn = eeh_dev_to_of_node(edev);
dev = eeh_dev_to_pci_dev(edev);
pe = edev->pe;
pe = eeh_dev_to_pe(edev);
/* Access to IO BARs might get this far and still not want checking. */
if (!pe) {
@ -542,17 +547,16 @@ EXPORT_SYMBOL_GPL(eeh_dev_check_failure);
/**
* eeh_check_failure - Check if all 1's data is due to EEH slot freeze
* @token: I/O token, should be address in the form 0xA....
* @val: value, should be all 1's (XXX why do we need this arg??)
* @token: I/O address
*
* Check for an EEH failure at the given token address. Call this
* Check for an EEH failure at the given I/O address. Call this
* routine if the result of a read was all 0xff's and you want to
* find out if this is due to an EEH slot freeze event. This routine
* find out if this is due to an EEH slot freeze event. This routine
* will query firmware for the EEH status.
*
* Note this routine is safe to call in an interrupt context.
*/
unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned long val)
int eeh_check_failure(const volatile void __iomem *token)
{
unsigned long addr;
struct eeh_dev *edev;
@ -562,13 +566,11 @@ unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned lon
edev = eeh_addr_cache_get_dev(addr);
if (!edev) {
eeh_stats.no_device++;
return val;
return 0;
}
eeh_dev_check_failure(edev);
return val;
return eeh_dev_check_failure(edev);
}
EXPORT_SYMBOL(eeh_check_failure);
@ -582,25 +584,51 @@ EXPORT_SYMBOL(eeh_check_failure);
*/
int eeh_pci_enable(struct eeh_pe *pe, int function)
{
int rc, flags = (EEH_STATE_MMIO_ACTIVE | EEH_STATE_DMA_ACTIVE);
int active_flag, rc;
/*
* pHyp doesn't allow to enable IO or DMA on unfrozen PE.
* Also, it's pointless to enable them on unfrozen PE. So
* we have the check here.
* we have to check before enabling IO or DMA.
*/
if (function == EEH_OPT_THAW_MMIO ||
function == EEH_OPT_THAW_DMA) {
switch (function) {
case EEH_OPT_THAW_MMIO:
active_flag = EEH_STATE_MMIO_ACTIVE;
break;
case EEH_OPT_THAW_DMA:
active_flag = EEH_STATE_DMA_ACTIVE;
break;
case EEH_OPT_DISABLE:
case EEH_OPT_ENABLE:
case EEH_OPT_FREEZE_PE:
active_flag = 0;
break;
default:
pr_warn("%s: Invalid function %d\n",
__func__, function);
return -EINVAL;
}
/*
* Check if IO or DMA has been enabled before
* enabling them.
*/
if (active_flag) {
rc = eeh_ops->get_state(pe, NULL);
if (rc < 0)
return rc;
/* Needn't to enable or already enabled */
if ((rc == EEH_STATE_NOT_SUPPORT) ||
((rc & flags) == flags))
/* Needn't enable it at all */
if (rc == EEH_STATE_NOT_SUPPORT)
return 0;
/* It's already enabled */
if (rc & active_flag)
return 0;
}
/* Issue the request */
rc = eeh_ops->set_option(pe, function);
if (rc)
pr_warn("%s: Unexpected state change %d on "
@ -608,17 +636,17 @@ int eeh_pci_enable(struct eeh_pe *pe, int function)
__func__, function, pe->phb->global_number,
pe->addr, rc);
rc = eeh_ops->wait_state(pe, PCI_BUS_RESET_WAIT_MSEC);
if (rc <= 0)
return rc;
/* Check if the request is finished successfully */
if (active_flag) {
rc = eeh_ops->wait_state(pe, PCI_BUS_RESET_WAIT_MSEC);
if (rc <= 0)
return rc;
if ((function == EEH_OPT_THAW_MMIO) &&
(rc & EEH_STATE_MMIO_ENABLED))
return 0;
if (rc & active_flag)
return 0;
if ((function == EEH_OPT_THAW_DMA) &&
(rc & EEH_STATE_DMA_ENABLED))
return 0;
return -EIO;
}
return rc;
}
@ -634,7 +662,7 @@ int eeh_pci_enable(struct eeh_pe *pe, int function)
int pcibios_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state state)
{
struct eeh_dev *edev = pci_dev_to_eeh_dev(dev);
struct eeh_pe *pe = edev->pe;
struct eeh_pe *pe = eeh_dev_to_pe(edev);
if (!pe) {
pr_err("%s: No PE found on PCI device %s\n",
@ -645,14 +673,18 @@ int pcibios_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state stat
switch (state) {
case pcie_deassert_reset:
eeh_ops->reset(pe, EEH_RESET_DEACTIVATE);
eeh_pe_state_clear(pe, EEH_PE_RESET);
break;
case pcie_hot_reset:
eeh_pe_state_mark(pe, EEH_PE_RESET);
eeh_ops->reset(pe, EEH_RESET_HOT);
break;
case pcie_warm_reset:
eeh_pe_state_mark(pe, EEH_PE_RESET);
eeh_ops->reset(pe, EEH_RESET_FUNDAMENTAL);
break;
default:
eeh_pe_state_clear(pe, EEH_PE_RESET);
return -EINVAL;
};
@ -1141,6 +1173,85 @@ void eeh_remove_device(struct pci_dev *dev)
edev->mode &= ~EEH_DEV_SYSFS;
}
int eeh_unfreeze_pe(struct eeh_pe *pe, bool sw_state)
{
int ret;
ret = eeh_pci_enable(pe, EEH_OPT_THAW_MMIO);
if (ret) {
pr_warn("%s: Failure %d enabling IO on PHB#%x-PE#%x\n",
__func__, ret, pe->phb->global_number, pe->addr);
return ret;
}
ret = eeh_pci_enable(pe, EEH_OPT_THAW_DMA);
if (ret) {
pr_warn("%s: Failure %d enabling DMA on PHB#%x-PE#%x\n",
__func__, ret, pe->phb->global_number, pe->addr);
return ret;
}
/* Clear software isolated state */
if (sw_state && (pe->state & EEH_PE_ISOLATED))
eeh_pe_state_clear(pe, EEH_PE_ISOLATED);
return ret;
}
static struct pci_device_id eeh_reset_ids[] = {
{ PCI_DEVICE(0x19a2, 0x0710) }, /* Emulex, BE */
{ PCI_DEVICE(0x10df, 0xe220) }, /* Emulex, Lancer */
{ 0 }
};
static int eeh_pe_change_owner(struct eeh_pe *pe)
{
struct eeh_dev *edev, *tmp;
struct pci_dev *pdev;
struct pci_device_id *id;
int flags, ret;
/* Check PE state */
flags = (EEH_STATE_MMIO_ACTIVE | EEH_STATE_DMA_ACTIVE);
ret = eeh_ops->get_state(pe, NULL);
if (ret < 0 || ret == EEH_STATE_NOT_SUPPORT)
return 0;
/* Unfrozen PE, nothing to do */
if ((ret & flags) == flags)
return 0;
/* Frozen PE, check if it needs PE level reset */
eeh_pe_for_each_dev(pe, edev, tmp) {
pdev = eeh_dev_to_pci_dev(edev);
if (!pdev)
continue;
for (id = &eeh_reset_ids[0]; id->vendor != 0; id++) {
if (id->vendor != PCI_ANY_ID &&
id->vendor != pdev->vendor)
continue;
if (id->device != PCI_ANY_ID &&
id->device != pdev->device)
continue;
if (id->subvendor != PCI_ANY_ID &&
id->subvendor != pdev->subsystem_vendor)
continue;
if (id->subdevice != PCI_ANY_ID &&
id->subdevice != pdev->subsystem_device)
continue;
goto reset;
}
}
return eeh_unfreeze_pe(pe, true);
reset:
return eeh_pe_reset_and_recover(pe);
}
/**
* eeh_dev_open - Increase count of pass through devices for PE
* @pdev: PCI device
@ -1153,6 +1264,7 @@ void eeh_remove_device(struct pci_dev *dev)
int eeh_dev_open(struct pci_dev *pdev)
{
struct eeh_dev *edev;
int ret = -ENODEV;
mutex_lock(&eeh_dev_mutex);
@ -1165,6 +1277,16 @@ int eeh_dev_open(struct pci_dev *pdev)
if (!edev || !edev->pe)
goto out;
/*
* The PE might have been put into frozen state, but we
* didn't detect that yet. The passed through PCI devices
* in frozen PE won't work properly. Clear the frozen state
* in advance.
*/
ret = eeh_pe_change_owner(edev->pe);
if (ret)
goto out;
/* Increase PE's pass through count */
atomic_inc(&edev->pe->pass_dev_cnt);
mutex_unlock(&eeh_dev_mutex);
@ -1172,7 +1294,7 @@ int eeh_dev_open(struct pci_dev *pdev)
return 0;
out:
mutex_unlock(&eeh_dev_mutex);
return -ENODEV;
return ret;
}
EXPORT_SYMBOL_GPL(eeh_dev_open);
@ -1202,6 +1324,7 @@ void eeh_dev_release(struct pci_dev *pdev)
/* Decrease PE's pass through count */
atomic_dec(&edev->pe->pass_dev_cnt);
WARN_ON(atomic_read(&edev->pe->pass_dev_cnt) < 0);
eeh_pe_change_owner(edev->pe);
out:
mutex_unlock(&eeh_dev_mutex);
}
@ -1281,8 +1404,10 @@ int eeh_pe_set_option(struct eeh_pe *pe, int option)
*/
switch (option) {
case EEH_OPT_ENABLE:
if (eeh_enabled())
if (eeh_enabled()) {
ret = eeh_pe_change_owner(pe);
break;
}
ret = -EIO;
break;
case EEH_OPT_DISABLE:
@ -1294,7 +1419,7 @@ int eeh_pe_set_option(struct eeh_pe *pe, int option)
break;
}
ret = eeh_ops->set_option(pe, option);
ret = eeh_pci_enable(pe, option);
break;
default:
pr_debug("%s: Option %d out of range (%d, %d)\n",
@ -1345,6 +1470,36 @@ int eeh_pe_get_state(struct eeh_pe *pe)
}
EXPORT_SYMBOL_GPL(eeh_pe_get_state);
static int eeh_pe_reenable_devices(struct eeh_pe *pe)
{
struct eeh_dev *edev, *tmp;
struct pci_dev *pdev;
int ret = 0;
/* Restore config space */
eeh_pe_restore_bars(pe);
/*
* Reenable PCI devices as the devices passed
* through are always enabled before the reset.
*/
eeh_pe_for_each_dev(pe, edev, tmp) {
pdev = eeh_dev_to_pci_dev(edev);
if (!pdev)
continue;
ret = pci_reenable_device(pdev);
if (ret) {
pr_warn("%s: Failure %d reenabling %s\n",
__func__, ret, pci_name(pdev));
return ret;
}
}
/* The PE is still in frozen state */
return eeh_unfreeze_pe(pe, true);
}
/**
* eeh_pe_reset - Issue PE reset according to specified type
* @pe: EEH PE
@ -1368,23 +1523,22 @@ int eeh_pe_reset(struct eeh_pe *pe, int option)
switch (option) {
case EEH_RESET_DEACTIVATE:
ret = eeh_ops->reset(pe, option);
eeh_pe_state_clear(pe, EEH_PE_RESET);
if (ret)
break;
/*
* The PE is still in frozen state and we need to clear
* that. It's good to clear frozen state after deassert
* to avoid messy IO access during reset, which might
* cause recursive frozen PE.
*/
ret = eeh_ops->set_option(pe, EEH_OPT_THAW_MMIO);
if (!ret)
ret = eeh_ops->set_option(pe, EEH_OPT_THAW_DMA);
if (!ret)
eeh_pe_state_clear(pe, EEH_PE_ISOLATED);
ret = eeh_pe_reenable_devices(pe);
break;
case EEH_RESET_HOT:
case EEH_RESET_FUNDAMENTAL:
/*
* Proactively freeze the PE to drop all MMIO access
* during reset, which should be banned as it's always
* cause recursive EEH error.
*/
eeh_ops->set_option(pe, EEH_OPT_FREEZE_PE);
eeh_pe_state_mark(pe, EEH_PE_RESET);
ret = eeh_ops->reset(pe, option);
break;
default:
@ -1413,9 +1567,6 @@ int eeh_pe_configure(struct eeh_pe *pe)
if (!pe)
return -ENODEV;
/* Restore config space for the affected devices */
eeh_pe_restore_bars(pe);
return ret;
}
EXPORT_SYMBOL_GPL(eeh_pe_configure);

106
arch/powerpc/kernel/eeh_driver.c
View file

@ -180,6 +180,22 @@ static bool eeh_dev_removed(struct eeh_dev *edev)
return false;
}
static void *eeh_dev_save_state(void *data, void *userdata)
{
struct eeh_dev *edev = data;
struct pci_dev *pdev;
if (!edev)
return NULL;
pdev = eeh_dev_to_pci_dev(edev);
if (!pdev)
return NULL;
pci_save_state(pdev);
return NULL;
}
/**
* eeh_report_error - Report pci error to each device driver
* @data: eeh device
@ -303,6 +319,22 @@ static void *eeh_report_reset(void *data, void *userdata)
return NULL;
}
static void *eeh_dev_restore_state(void *data, void *userdata)
{
struct eeh_dev *edev = data;
struct pci_dev *pdev;
if (!edev)
return NULL;
pdev = eeh_dev_to_pci_dev(edev);
if (!pdev)
return NULL;
pci_restore_state(pdev);
return NULL;
}
/**
* eeh_report_resume - Tell device to resume normal operations
* @data: eeh device
@ -450,38 +482,82 @@ static void *eeh_pe_detach_dev(void *data, void *userdata)
static void *__eeh_clear_pe_frozen_state(void *data, void *flag)
{
struct eeh_pe *pe = (struct eeh_pe *)data;
int i, rc;
bool *clear_sw_state = flag;
int i, rc = 1;
for (i = 0; i < 3; i++) {
rc = eeh_pci_enable(pe, EEH_OPT_THAW_MMIO);
if (rc)
continue;
rc = eeh_pci_enable(pe, EEH_OPT_THAW_DMA);
if (!rc)
break;
}
for (i = 0; rc && i < 3; i++)
rc = eeh_unfreeze_pe(pe, clear_sw_state);
/* The PE has been isolated, clear it */
/* Stop immediately on any errors */
if (rc) {
pr_warn("%s: Can't clear frozen PHB#%x-PE#%x (%d)\n",
__func__, pe->phb->global_number, pe->addr, rc);
pr_warn("%s: Failure %d unfreezing PHB#%x-PE#%x\n",
__func__, rc, pe->phb->global_number, pe->addr);
return (void *)pe;
}
return NULL;
}
static int eeh_clear_pe_frozen_state(struct eeh_pe *pe)
static int eeh_clear_pe_frozen_state(struct eeh_pe *pe,
bool clear_sw_state)
{
void *rc;
rc = eeh_pe_traverse(pe, __eeh_clear_pe_frozen_state, NULL);
rc = eeh_pe_traverse(pe, __eeh_clear_pe_frozen_state, &clear_sw_state);
if (!rc)
eeh_pe_state_clear(pe, EEH_PE_ISOLATED);
return rc ? -EIO : 0;
}
int eeh_pe_reset_and_recover(struct eeh_pe *pe)
{
int result, ret;
/* Bail if the PE is being recovered */
if (pe->state & EEH_PE_RECOVERING)
return 0;
/* Put the PE into recovery mode */
eeh_pe_state_mark(pe, EEH_PE_RECOVERING);
/* Save states */
eeh_pe_dev_traverse(pe, eeh_dev_save_state, NULL);
/* Report error */
eeh_pe_dev_traverse(pe, eeh_report_error, &result);
/* Issue reset */
eeh_pe_state_mark(pe, EEH_PE_RESET);
ret = eeh_reset_pe(pe);
if (ret) {
eeh_pe_state_clear(pe, EEH_PE_RECOVERING | EEH_PE_RESET);
return ret;
}
eeh_pe_state_clear(pe, EEH_PE_RESET);
/* Unfreeze the PE */
ret = eeh_clear_pe_frozen_state(pe, true);
if (ret) {
eeh_pe_state_clear(pe, EEH_PE_RECOVERING);
return ret;
}
/* Notify completion of reset */
eeh_pe_dev_traverse(pe, eeh_report_reset, &result);
/* Restore device state */
eeh_pe_dev_traverse(pe, eeh_dev_restore_state, NULL);
/* Resume */
eeh_pe_dev_traverse(pe, eeh_report_resume, NULL);
/* Clear recovery mode */
eeh_pe_state_clear(pe, EEH_PE_RECOVERING);
return 0;
}
/**
* eeh_reset_device - Perform actual reset of a pci slot
* @pe: EEH PE
@ -540,7 +616,7 @@ static int eeh_reset_device(struct eeh_pe *pe, struct pci_bus *bus)
eeh_pe_state_clear(pe, EEH_PE_RESET);
/* Clear frozen state */
rc = eeh_clear_pe_frozen_state(pe);
rc = eeh_clear_pe_frozen_state(pe, false);
if (rc)
return rc;

23
arch/powerpc/kernel/eeh_pe.c
View file

@ -428,7 +428,7 @@ int eeh_rmv_from_parent_pe(struct eeh_dev *edev)
}
/* Remove the EEH device */
pe = edev->pe;
pe = eeh_dev_to_pe(edev);
edev->pe = NULL;
list_del(&edev->list);
@ -584,6 +584,8 @@ static void *__eeh_pe_state_clear(void *data, void *flag)
{
struct eeh_pe *pe = (struct eeh_pe *)data;
int state = *((int *)flag);
struct eeh_dev *edev, *tmp;
struct pci_dev *pdev;
/* Keep the state of permanently removed PE intact */
if ((pe->freeze_count > EEH_MAX_ALLOWED_FREEZES) &&
@ -592,9 +594,22 @@ static void *__eeh_pe_state_clear(void *data, void *flag)
pe->state &= ~state;
/* Clear check count since last isolation */
if (state & EEH_PE_ISOLATED)
pe->check_count = 0;
/*
* Special treatment on clearing isolated state. Clear
* check count since last isolation and put all affected
* devices to normal state.
*/
if (!(state & EEH_PE_ISOLATED))
return NULL;
pe->check_count = 0;
eeh_pe_for_each_dev(pe, edev, tmp) {
pdev = eeh_dev_to_pci_dev(edev);
if (!pdev)
continue;
pdev->error_state = pci_channel_io_normal;
}
return NULL;
}

41
arch/powerpc/kernel/eeh_sysfs.c
View file

@ -54,6 +54,43 @@ EEH_SHOW_ATTR(eeh_mode, mode, "0x%x");
EEH_SHOW_ATTR(eeh_config_addr, config_addr, "0x%x");
EEH_SHOW_ATTR(eeh_pe_config_addr, pe_config_addr, "0x%x");
static ssize_t eeh_pe_state_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct eeh_dev *edev = pci_dev_to_eeh_dev(pdev);
int state;
if (!edev || !edev->pe)
return -ENODEV;
state = eeh_ops->get_state(edev->pe, NULL);
return sprintf(buf, "%0x08x %0x08x\n",
state, edev->pe->state);
}
static ssize_t eeh_pe_state_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct eeh_dev *edev = pci_dev_to_eeh_dev(pdev);
if (!edev || !edev->pe)
return -ENODEV;
/* Nothing to do if it's not frozen */
if (!(edev->pe->state & EEH_PE_ISOLATED))
return count;
if (eeh_unfreeze_pe(edev->pe, true))
return -EIO;
return count;
}
static DEVICE_ATTR_RW(eeh_pe_state);
void eeh_sysfs_add_device(struct pci_dev *pdev)
{
struct eeh_dev *edev = pci_dev_to_eeh_dev(pdev);
@ -68,9 +105,10 @@ void eeh_sysfs_add_device(struct pci_dev *pdev)
rc += device_create_file(&pdev->dev, &dev_attr_eeh_mode);
rc += device_create_file(&pdev->dev, &dev_attr_eeh_config_addr);
rc += device_create_file(&pdev->dev, &dev_attr_eeh_pe_config_addr);
rc += device_create_file(&pdev->dev, &dev_attr_eeh_pe_state);
if (rc)
printk(KERN_WARNING "EEH: Unable to create sysfs entries\n");
pr_warn("EEH: Unable to create sysfs entries\n");
else if (edev)
edev->mode |= EEH_DEV_SYSFS;
}
@ -92,6 +130,7 @@ void eeh_sysfs_remove_device(struct pci_dev *pdev)
device_remove_file(&pdev->dev, &dev_attr_eeh_mode);
device_remove_file(&pdev->dev, &dev_attr_eeh_config_addr);
device_remove_file(&pdev->dev, &dev_attr_eeh_pe_config_addr);
device_remove_file(&pdev->dev, &dev_attr_eeh_pe_state);
if (edev)
edev->mode &= ~EEH_DEV_SYSFS;

150
arch/powerpc/kernel/head_8xx.S
View file

@ -104,12 +104,15 @@ turn_on_mmu:
* task's thread_struct.
*/
#define EXCEPTION_PROLOG \
mtspr SPRN_SPRG_SCRATCH0,r10; \
mtspr SPRN_SPRG_SCRATCH1,r11; \
mfcr r10; \
EXCEPTION_PROLOG_0; \
EXCEPTION_PROLOG_1; \
EXCEPTION_PROLOG_2
#define EXCEPTION_PROLOG_0 \
mtspr SPRN_SPRG_SCRATCH0,r10; \
mtspr SPRN_SPRG_SCRATCH1,r11; \
mfcr r10
#define EXCEPTION_PROLOG_1 \
mfspr r11,SPRN_SRR1; /* check whether user or kernel */ \
andi. r11,r11,MSR_PR; \
@ -144,6 +147,14 @@ turn_on_mmu:
SAVE_4GPRS(3, r11); \
SAVE_2GPRS(7, r11)
/*
* Exception exit code.
*/
#define EXCEPTION_EPILOG_0 \
mtcr r10; \
mfspr r10,SPRN_SPRG_SCRATCH0; \
mfspr r11,SPRN_SPRG_SCRATCH1
/*
* Note: code which follows this uses cr0.eq (set if from kernel),
* r11, r12 (SRR0), and r9 (SRR1).
@ -293,16 +304,8 @@ InstructionTLBMiss:
#ifdef CONFIG_8xx_CPU6
stw r3, 8(r0)
#endif
DO_8xx_CPU6(0x3f80, r3)
mtspr SPRN_M_TW, r10 /* Save a couple of working registers */
mfcr r10
#ifdef CONFIG_8xx_CPU6
stw r10, 0(r0)
stw r11, 4(r0)
#else
mtspr SPRN_DAR, r10
mtspr SPRN_SPRG2, r11
#endif
EXCEPTION_PROLOG_0
mtspr SPRN_SPRG_SCRATCH2, r10
mfspr r10, SPRN_SRR0 /* Get effective address of fault */
#ifdef CONFIG_8xx_CPU15
addi r11, r10, 0x1000
@ -359,18 +362,11 @@ InstructionTLBMiss:
mtspr SPRN_MI_RPN, r10 /* Update TLB entry */
/* Restore registers */
#ifndef CONFIG_8xx_CPU6
mfspr r10, SPRN_DAR
mtcr r10
mtspr SPRN_DAR, r11 /* Tag DAR */
mfspr r11, SPRN_SPRG2
#else
lwz r11, 0(r0)
mtcr r11
lwz r11, 4(r0)
#ifdef CONFIG_8xx_CPU6
lwz r3, 8(r0)
#endif
mfspr r10, SPRN_M_TW
mfspr r10, SPRN_SPRG_SCRATCH2
EXCEPTION_EPILOG_0
rfi
2:
mfspr r11, SPRN_SRR1
@ -381,19 +377,11 @@ InstructionTLBMiss:
mtspr SPRN_SRR1, r11
/* Restore registers */
#ifndef CONFIG_8xx_CPU6
mfspr r10, SPRN_DAR
mtcr r10
li r11, 0x00f0
mtspr SPRN_DAR, r11 /* Tag DAR */
mfspr r11, SPRN_SPRG2
#else
lwz r11, 0(r0)
mtcr r11
lwz r11, 4(r0)
#ifdef CONFIG_8xx_CPU6
lwz r3, 8(r0)
#endif
mfspr r10, SPRN_M_TW
mfspr r10, SPRN_SPRG_SCRATCH2
EXCEPTION_EPILOG_0
b InstructionAccess
. = 0x1200
@ -401,16 +389,8 @@ DataStoreTLBMiss:
#ifdef CONFIG_8xx_CPU6
stw r3, 8(r0)
#endif
DO_8xx_CPU6(0x3f80, r3)
mtspr SPRN_M_TW, r10 /* Save a couple of working registers */
mfcr r10
#ifdef CONFIG_8xx_CPU6
stw r10, 0(r0)
stw r11, 4(r0)
#else
mtspr SPRN_DAR, r10
mtspr SPRN_SPRG2, r11
#endif
EXCEPTION_PROLOG_0
mtspr SPRN_SPRG_SCRATCH2, r10
mfspr r10, SPRN_M_TWB /* Get level 1 table entry address */
/* If we are faulting a kernel address, we have to use the
@ -483,19 +463,12 @@ DataStoreTLBMiss:
mtspr SPRN_MD_RPN, r10 /* Update TLB entry */
/* Restore registers */
#ifndef CONFIG_8xx_CPU6
mfspr r10, SPRN_DAR
mtcr r10
mtspr SPRN_DAR, r11 /* Tag DAR */
mfspr r11, SPRN_SPRG2
#else
mtspr SPRN_DAR, r11 /* Tag DAR */
lwz r11, 0(r0)
mtcr r11
lwz r11, 4(r0)
#ifdef CONFIG_8xx_CPU6
lwz r3, 8(r0)
#endif
mfspr r10, SPRN_M_TW
mtspr SPRN_DAR, r11 /* Tag DAR */
mfspr r10, SPRN_SPRG_SCRATCH2
EXCEPTION_EPILOG_0
rfi
/* This is an instruction TLB error on the MPC8xx. This could be due
@ -507,35 +480,18 @@ InstructionTLBError:
b InstructionAccess
/* This is the data TLB error on the MPC8xx. This could be due to
* many reasons, including a dirty update to a pte. We can catch that
* one here, but anything else is an error. First, we track down the
* Linux pte. If it is valid, write access is allowed, but the
* page dirty bit is not set, we will set it and reload the TLB. For
* any other case, we bail out to a higher level function that can
* handle it.
* many reasons, including a dirty update to a pte. We bail out to
* a higher level function that can handle it.
*/
. = 0x1400
DataTLBError:
#ifdef CONFIG_8xx_CPU6
stw r3, 8(r0)
#endif
DO_8xx_CPU6(0x3f80, r3)
mtspr SPRN_M_TW, r10 /* Save a couple of working registers */
mfcr r10
stw r10, 0(r0)
stw r11, 4(r0)
EXCEPTION_PROLOG_0
mfspr r10, SPRN_DAR
cmpwi cr0, r10, 0x00f0
mfspr r11, SPRN_DAR
cmpwi cr0, r11, 0x00f0
beq- FixupDAR /* must be a buggy dcbX, icbi insn. */
DARFixed:/* Return from dcbx instruction bug workaround, r10 holds value of DAR */
mfspr r10, SPRN_M_TW /* Restore registers */
lwz r11, 0(r0)
mtcr r11
lwz r11, 4(r0)
#ifdef CONFIG_8xx_CPU6
lwz r3, 8(r0)
#endif
DARFixed:/* Return from dcbx instruction bug workaround */
EXCEPTION_EPILOG_0
b DataAccess
EXCEPTION(0x1500, Trap_15, unknown_exception, EXC_XFER_EE)
@ -559,11 +515,15 @@ DARFixed:/* Return from dcbx instruction bug workaround, r10 holds value of DAR
/* This is the procedure to calculate the data EA for buggy dcbx,dcbi instructions
* by decoding the registers used by the dcbx instruction and adding them.
* DAR is set to the calculated address and r10 also holds the EA on exit.
* DAR is set to the calculated address.
*/
/* define if you don't want to use self modifying code */
#define NO_SELF_MODIFYING_CODE
FixupDAR:/* Entry point for dcbx workaround. */
#ifdef CONFIG_8xx_CPU6
stw r3, 8(r0)
#endif
mtspr SPRN_SPRG_SCRATCH2, r10
/* fetch instruction from memory. */
mfspr r10, SPRN_SRR0
andis. r11, r10, 0x8000 /* Address >= 0x80000000 */
@ -579,16 +539,17 @@ FixupDAR:/* Entry point for dcbx workaround. */
mtspr SPRN_MD_TWC, r11 /* Load pte table base address */
mfspr r11, SPRN_MD_TWC /* ....and get the pte address */
lwz r11, 0(r11) /* Get the pte */
#ifdef CONFIG_8xx_CPU6
lwz r3, 8(r0) /* restore r3 from memory */
#endif
/* concat physical page address(r11) and page offset(r10) */
rlwimi r11, r10, 0, 20, 31
lwz r11,0(r11)
/* Check if it really is a dcbx instruction. */
/* dcbt and dcbtst does not generate DTLB Misses/Errors,
* no need to include them here */
srwi r10, r11, 26 /* check if major OP code is 31 */
cmpwi cr0, r10, 31
bne- 141f
rlwinm r10, r11, 0, 21, 30
xoris r10, r11, 0x7c00 /* check if major OP code is 31 */
rlwinm r10, r10, 0, 21, 5
cmpwi cr0, r10, 2028 /* Is dcbz? */
beq+ 142f
cmpwi cr0, r10, 940 /* Is dcbi? */
@ -599,16 +560,13 @@ FixupDAR:/* Entry point for dcbx workaround. */
beq+ 142f
cmpwi cr0, r10, 1964 /* Is icbi? */
beq+ 142f
141: mfspr r10, SPRN_DAR /* r10 must hold DAR at exit */
141: mfspr r10,SPRN_SPRG_SCRATCH2
b DARFixed /* Nope, go back to normal TLB processing */
144: mfspr r10, SPRN_DSISR
rlwinm r10, r10,0,7,5 /* Clear store bit for buggy dcbst insn */
mtspr SPRN_DSISR, r10
142: /* continue, it was a dcbx, dcbi instruction. */
#ifdef CONFIG_8xx_CPU6
lwz r3, 8(r0) /* restore r3 from memory */
#endif
#ifndef NO_SELF_MODIFYING_CODE
andis. r10,r11,0x1f /* test if reg RA is r0 */
li r10,modified_instr@l
@ -619,14 +577,15 @@ FixupDAR:/* Entry point for dcbx workaround. */
stw r11,0(r10) /* store add/and instruction */
dcbf 0,r10 /* flush new instr. to memory. */
icbi 0,r10 /* invalidate instr. cache line */
lwz r11, 4(r0) /* restore r11 from memory */
mfspr r10, SPRN_M_TW /* restore r10 from M_TW */
mfspr r11, SPRN_SPRG_SCRATCH1 /* restore r11 */
mfspr r10, SPRN_SPRG_SCRATCH0 /* restore r10 */
isync /* Wait until new instr is loaded from memory */
modified_instr:
.space 4 /* this is where the add instr. is stored */
bne+ 143f
subf r10,r0,r10 /* r10=r10-r0, only if reg RA is r0 */
143: mtdar r10 /* store faulting EA in DAR */
mfspr r10,SPRN_SPRG_SCRATCH2
b DARFixed /* Go back to normal TLB handling */
#else
mfctr r10
@ -680,13 +639,16 @@ modified_instr:
mfdar r11
mtctr r11 /* restore ctr reg from DAR */
mtdar r10 /* save fault EA to DAR */
mfspr r10,SPRN_SPRG_SCRATCH2
b DARFixed /* Go back to normal TLB handling */
/* special handling for r10,r11 since these are modified already */
153: lwz r11, 4(r0) /* load r11 from memory */
b 155f
154: mfspr r11, SPRN_M_TW /* load r10 from M_TW */
155: add r10, r10, r11 /* add it */
153: mfspr r11, SPRN_SPRG_SCRATCH1 /* load r11 from SPRN_SPRG_SCRATCH1 */
add r10, r10, r11 /* add it */
mfctr r11 /* restore r11 */
b 151b
154: mfspr r11, SPRN_SPRG_SCRATCH0 /* load r10 from SPRN_SPRG_SCRATCH0 */
add r10, r10, r11 /* add it */
mfctr r11 /* restore r11 */
b 151b
#endif

2
arch/powerpc/kernel/hw_breakpoint.c
View file

@ -293,7 +293,7 @@ int __kprobes hw_breakpoint_handler(struct die_args *args)
/*
* Handle single-step exceptions following a DABR hit.
*/
int __kprobes single_step_dabr_instruction(struct die_args *args)
static int __kprobes single_step_dabr_instruction(struct die_args *args)
{
struct pt_regs *regs = args->regs;
struct perf_event *bp = NULL;

2
arch/powerpc/kernel/ibmebus.c
View file

@ -55,7 +55,7 @@ static struct device ibmebus_bus_device = { /* fake "parent" device */
struct bus_type ibmebus_bus_type;
/* These devices will automatically be added to the bus during init */
static struct of_device_id __initdata ibmebus_matches[] = {
static const struct of_device_id ibmebus_matches[] __initconst = {
{ .compatible = "IBM,lhca" },
{ .compatible = "IBM,lhea" },
{},

2
arch/powerpc/kernel/idle_power7.S
View file

@ -73,7 +73,7 @@ _GLOBAL(power7_powersave_common)
/* Check if something happened while soft-disabled */
lbz r0,PACAIRQHAPPENED(r13)
cmpwi cr0,r0,0
andi. r0,r0,~PACA_IRQ_HARD_DIS@l
beq 1f
cmpwi cr0,r4,0
beq 1f

6
arch/powerpc/kernel/irq.c
View file

@ -444,13 +444,13 @@ void migrate_irqs(void)
cpumask_and(mask, data->affinity, map);
if (cpumask_any(mask) >= nr_cpu_ids) {
printk("Breaking affinity for irq %i\n", irq);
pr_warn("Breaking affinity for irq %i\n", irq);
cpumask_copy(mask, map);
}
if (chip->irq_set_affinity)
chip->irq_set_affinity(data, mask, true);
else if (desc->action && !(warned++))
printk("Cannot set affinity for irq %i\n", irq);
pr_err("Cannot set affinity for irq %i\n", irq);
}
free_cpumask_var(mask);
@ -470,7 +470,7 @@ static inline void check_stack_overflow(void)
/* check for stack overflow: is there less than 2KB free? */
if (unlikely(sp < (sizeof(struct thread_info) + 2048))) {
printk("do_IRQ: stack overflow: %ld\n",
pr_err("do_IRQ: stack overflow: %ld\n",
sp - sizeof(struct thread_info));
dump_stack();
}

2
arch/powerpc/kernel/legacy_serial.c
View file

@ -35,7 +35,7 @@ static struct legacy_serial_info {
phys_addr_t taddr;
} legacy_serial_infos[MAX_LEGACY_SERIAL_PORTS];
static struct of_device_id legacy_serial_parents[] __initdata = {
static const struct of_device_id legacy_serial_parents[] __initconst = {
{.type = "soc",},
{.type = "tsi-bridge",},
{.type = "opb", },

31
arch/powerpc/kernel/module_32.c
View file

@ -15,6 +15,9 @@
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/moduleloader.h>
#include <linux/elf.h>
@ -28,12 +31,6 @@
#include <linux/sort.h>
#include <asm/setup.h>
#if 0
#define DEBUGP printk
#else
#define DEBUGP(fmt , ...)
#endif
/* Count how many different relocations (different symbol, different
addend) */
static unsigned int count_relocs(const Elf32_Rela *rela, unsigned int num)
@ -121,8 +118,8 @@ static unsigned long get_plt_size(const Elf32_Ehdr *hdr,
continue;
if (sechdrs[i].sh_type == SHT_RELA) {
DEBUGP("Found relocations in section %u\n", i);
DEBUGP("Ptr: %p. Number: %u\n",
pr_debug("Found relocations in section %u\n", i);
pr_debug("Ptr: %p. Number: %u\n",
(void *)hdr + sechdrs[i].sh_offset,
sechdrs[i].sh_size / sizeof(Elf32_Rela));
@ -161,7 +158,7 @@ int module_frob_arch_sections(Elf32_Ehdr *hdr,
me->arch.core_plt_section = i;
}
if (!me->arch.core_plt_section || !me->arch.init_plt_section) {
printk("Module doesn't contain .plt or .init.plt sections.\n");
pr_err("Module doesn't contain .plt or .init.plt sections.\n");
return -ENOEXEC;
}
@ -189,7 +186,7 @@ static uint32_t do_plt_call(void *location,
{
struct ppc_plt_entry *entry;
DEBUGP("Doing plt for call to 0x%x at 0x%x\n", val, (unsigned int)location);
pr_debug("Doing plt for call to 0x%x at 0x%x\n", val, (unsigned int)location);
/* Init, or core PLT? */
if (location >= mod->module_core
&& location < mod->module_core + mod->core_size)
@ -208,7 +205,7 @@ static uint32_t do_plt_call(void *location,
entry->jump[2] = 0x7d8903a6; /* mtctr r12 */
entry->jump[3] = 0x4e800420; /* bctr */
DEBUGP("Initialized plt for 0x%x at %p\n", val, entry);
pr_debug("Initialized plt for 0x%x at %p\n", val, entry);
return (uint32_t)entry;
}
@ -224,7 +221,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
uint32_t *location;
uint32_t value;
DEBUGP("Applying ADD relocate section %u to %u\n", relsec,
pr_debug("Applying ADD relocate section %u to %u\n", relsec,
sechdrs[relsec].sh_info);
for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rela); i++) {
/* This is where to make the change */
@ -268,17 +265,17 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
sechdrs, module);
/* Only replace bits 2 through 26 */
DEBUGP("REL24 value = %08X. location = %08X\n",
pr_debug("REL24 value = %08X. location = %08X\n",
value, (uint32_t)location);
DEBUGP("Location before: %08X.\n",
pr_debug("Location before: %08X.\n",
*(uint32_t *)location);
*(uint32_t *)location
= (*(uint32_t *)location & ~0x03fffffc)
| ((value - (uint32_t)location)
& 0x03fffffc);
DEBUGP("Location after: %08X.\n",
pr_debug("Location after: %08X.\n",
*(uint32_t *)location);
DEBUGP("ie. jump to %08X+%08X = %08X\n",
pr_debug("ie. jump to %08X+%08X = %08X\n",
*(uint32_t *)location & 0x03fffffc,
(uint32_t)location,
(*(uint32_t *)location & 0x03fffffc)
@ -291,7 +288,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
break;
default:
printk("%s: unknown ADD relocation: %u\n",
pr_err("%s: unknown ADD relocation: %u\n",
module->name,
ELF32_R_TYPE(rela[i].r_info));
return -ENOEXEC;

36
arch/powerpc/kernel/module_64.c
View file

@ -15,6 +15,9 @@
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/elf.h>
#include <linux/moduleloader.h>
@ -36,11 +39,6 @@
Using a magic allocator which places modules within 32MB solves
this, and makes other things simpler. Anton?
--RR. */
#if 0
#define DEBUGP printk
#else
#define DEBUGP(fmt , ...)
#endif
#if defined(_CALL_ELF) && _CALL_ELF == 2
#define R2_STACK_OFFSET 24
@ -279,8 +277,8 @@ static unsigned long get_stubs_size(const Elf64_Ehdr *hdr,
/* Every relocated section... */
for (i = 1; i < hdr->e_shnum; i++) {
if (sechdrs[i].sh_type == SHT_RELA) {
DEBUGP("Found relocations in section %u\n", i);
DEBUGP("Ptr: %p. Number: %lu\n",
pr_debug("Found relocations in section %u\n", i);
pr_debug("Ptr: %p. Number: %Lu\n",
(void *)sechdrs[i].sh_addr,
sechdrs[i].sh_size / sizeof(Elf64_Rela));
@ -304,7 +302,7 @@ static unsigned long get_stubs_size(const Elf64_Ehdr *hdr,
relocs++;
#endif
DEBUGP("Looks like a total of %lu stubs, max\n", relocs);
pr_debug("Looks like a total of %lu stubs, max\n", relocs);
return relocs * sizeof(struct ppc64_stub_entry);
}
@ -390,7 +388,7 @@ int module_frob_arch_sections(Elf64_Ehdr *hdr,
}
if (!me->arch.stubs_section) {
printk("%s: doesn't contain .stubs.\n", me->name);
pr_err("%s: doesn't contain .stubs.\n", me->name);
return -ENOEXEC;
}
@ -434,11 +432,11 @@ static inline int create_stub(Elf64_Shdr *sechdrs,
/* Stub uses address relative to r2. */
reladdr = (unsigned long)entry - my_r2(sechdrs, me);
if (reladdr > 0x7FFFFFFF || reladdr < -(0x80000000L)) {
printk("%s: Address %p of stub out of range of %p.\n",
pr_err("%s: Address %p of stub out of range of %p.\n",
me->name, (void *)reladdr, (void *)my_r2);
return 0;
}
DEBUGP("Stub %p get data from reladdr %li\n", entry, reladdr);
pr_debug("Stub %p get data from reladdr %li\n", entry, reladdr);
entry->jump[0] |= PPC_HA(reladdr);
entry->jump[1] |= PPC_LO(reladdr);
@ -477,7 +475,7 @@ static unsigned long stub_for_addr(Elf64_Shdr *sechdrs,
static int restore_r2(u32 *instruction, struct module *me)
{
if (*instruction != PPC_INST_NOP) {
printk("%s: Expect noop after relocate, got %08x\n",
pr_err("%s: Expect noop after relocate, got %08x\n",
me->name, *instruction);
return 0;
}
@ -498,7 +496,7 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
unsigned long *location;
unsigned long value;
DEBUGP("Applying ADD relocate section %u to %u\n", relsec,
pr_debug("Applying ADD relocate section %u to %u\n", relsec,
sechdrs[relsec].sh_info);
/* First time we're called, we can fix up .TOC. */
@ -519,7 +517,7 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
sym = (Elf64_Sym *)sechdrs[symindex].sh_addr
+ ELF64_R_SYM(rela[i].r_info);
DEBUGP("RELOC at %p: %li-type as %s (%lu) + %li\n",
pr_debug("RELOC at %p: %li-type as %s (0x%lx) + %li\n",
location, (long)ELF64_R_TYPE(rela[i].r_info),
strtab + sym->st_name, (unsigned long)sym->st_value,
(long)rela[i].r_addend);
@ -546,7 +544,7 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
/* Subtract TOC pointer */
value -= my_r2(sechdrs, me);
if (value + 0x8000 > 0xffff) {
printk("%s: bad TOC16 relocation (%lu)\n",
pr_err("%s: bad TOC16 relocation (0x%lx)\n",
me->name, value);
return -ENOEXEC;
}
@ -567,7 +565,7 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
/* Subtract TOC pointer */
value -= my_r2(sechdrs, me);
if ((value & 3) != 0 || value + 0x8000 > 0xffff) {
printk("%s: bad TOC16_DS relocation (%lu)\n",
pr_err("%s: bad TOC16_DS relocation (0x%lx)\n",
me->name, value);
return -ENOEXEC;
}
@ -580,7 +578,7 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
/* Subtract TOC pointer */
value -= my_r2(sechdrs, me);
if ((value & 3) != 0) {
printk("%s: bad TOC16_LO_DS relocation (%lu)\n",
pr_err("%s: bad TOC16_LO_DS relocation (0x%lx)\n",
me->name, value);
return -ENOEXEC;
}
@ -613,7 +611,7 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
/* Convert value to relative */
value -= (unsigned long)location;
if (value + 0x2000000 > 0x3ffffff || (value & 3) != 0){
printk("%s: REL24 %li out of range!\n",
pr_err("%s: REL24 %li out of range!\n",
me->name, (long int)value);
return -ENOEXEC;
}
@ -655,7 +653,7 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
break;
default:
printk("%s: Unknown ADD relocation: %lu\n",
pr_err("%s: Unknown ADD relocation: %lu\n",
me->name,
(unsigned long)ELF64_R_TYPE(rela[i].r_info));
return -ENOEXEC;

2
arch/powerpc/kernel/nvram_64.c
View file

@ -567,7 +567,7 @@ static int __init nvram_init(void)
return rc;
}
void __exit nvram_cleanup(void)
static void __exit nvram_cleanup(void)
{
misc_deregister( &nvram_dev );
}

2
arch/powerpc/kernel/of_platform.c
View file

@ -97,7 +97,7 @@ static int of_pci_phb_probe(struct platform_device *dev)
return 0;
}
static struct of_device_id of_pci_phb_ids[] = {
static const struct of_device_id of_pci_phb_ids[] = {
{ .type = "pci", },
{ .type = "pcix", },
{ .type = "pcie", },

3
arch/powerpc/kernel/pci-common.c
View file

@ -1140,7 +1140,7 @@ static int reparent_resources(struct resource *parent,
* as well.
*/
void pcibios_allocate_bus_resources(struct pci_bus *bus)
static void pcibios_allocate_bus_resources(struct pci_bus *bus)
{
struct pci_bus *b;
int i;
@ -1561,7 +1561,6 @@ EARLY_PCI_OP(write, byte, u8)
EARLY_PCI_OP(write, word, u16)
EARLY_PCI_OP(write, dword, u32)
extern int pci_bus_find_capability (struct pci_bus *bus, unsigned int devfn, int cap);
int early_find_capability(struct pci_controller *hose, int bus, int devfn,
int cap)
{

2
arch/powerpc/kernel/pci_of_scan.c
View file

@ -38,7 +38,7 @@ static u32 get_int_prop(struct device_node *np, const char *name, u32 def)
* @addr0: value of 1st cell of a device tree PCI address.
* @bridge: Set this flag if the address is from a bridge 'ranges' property
*/
unsigned int pci_parse_of_flags(u32 addr0, int bridge)
static unsigned int pci_parse_of_flags(u32 addr0, int bridge)
{
unsigned int flags = 0;

192
arch/powerpc/kernel/ppc_ksyms.c
View file

@ -1,207 +1,41 @@
#include <linux/export.h>
#include <linux/threads.h>
#include <linux/smp.h>
#include <linux/sched.h>
#include <linux/elfcore.h>
#include <linux/string.h>
#include <linux/interrupt.h>
#include <linux/screen_info.h>
#include <linux/vt_kern.h>
#include <linux/nvram.h>
#include <linux/irq.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/bitops.h>
#include <linux/ftrace.h>
#include <linux/mm.h>
#include <asm/page.h>
#include <asm/processor.h>
#include <asm/cacheflush.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <linux/atomic.h>
#include <asm/checksum.h>
#include <asm/pgtable.h>
#include <asm/tlbflush.h>
#include <linux/adb.h>
#include <linux/cuda.h>
#include <linux/pmu.h>
#include <asm/prom.h>
#include <asm/pci-bridge.h>
#include <asm/irq.h>
#include <asm/pmac_feature.h>
#include <asm/dma.h>
#include <asm/machdep.h>
#include <asm/hw_irq.h>
#include <asm/nvram.h>
#include <asm/mmu_context.h>
#include <asm/backlight.h>
#include <asm/time.h>
#include <asm/cputable.h>
#include <asm/btext.h>
#include <asm/div64.h>
#include <asm/signal.h>
#include <asm/dcr.h>
#include <asm/ftrace.h>
#include <asm/switch_to.h>
#include <asm/cacheflush.h>
#include <asm/epapr_hcalls.h>
#ifdef CONFIG_PPC32
extern void transfer_to_handler(void);
extern void do_IRQ(struct pt_regs *regs);
extern void machine_check_exception(struct pt_regs *regs);
extern void alignment_exception(struct pt_regs *regs);
extern void program_check_exception(struct pt_regs *regs);
extern void single_step_exception(struct pt_regs *regs);
extern int sys_sigreturn(struct pt_regs *regs);
EXPORT_SYMBOL(flush_dcache_range);
EXPORT_SYMBOL(flush_icache_range);
EXPORT_SYMBOL(clear_pages);
EXPORT_SYMBOL(ISA_DMA_THRESHOLD);
EXPORT_SYMBOL(DMA_MODE_READ);
EXPORT_SYMBOL(DMA_MODE_WRITE);
EXPORT_SYMBOL(empty_zero_page);
EXPORT_SYMBOL(transfer_to_handler);
EXPORT_SYMBOL(do_IRQ);
EXPORT_SYMBOL(machine_check_exception);
EXPORT_SYMBOL(alignment_exception);
EXPORT_SYMBOL(program_check_exception);
EXPORT_SYMBOL(single_step_exception);
EXPORT_SYMBOL(sys_sigreturn);
#endif
long long __bswapdi2(long long);
EXPORT_SYMBOL(__bswapdi2);
#ifdef CONFIG_FUNCTION_TRACER
EXPORT_SYMBOL(_mcount);
#endif
EXPORT_SYMBOL(strcpy);
EXPORT_SYMBOL(strncpy);
EXPORT_SYMBOL(strcat);
EXPORT_SYMBOL(strlen);
EXPORT_SYMBOL(strcmp);
EXPORT_SYMBOL(strncmp);
#ifndef CONFIG_GENERIC_CSUM
EXPORT_SYMBOL(csum_partial);
EXPORT_SYMBOL(csum_partial_copy_generic);
EXPORT_SYMBOL(ip_fast_csum);
EXPORT_SYMBOL(csum_tcpudp_magic);
#endif
EXPORT_SYMBOL(__copy_tofrom_user);
EXPORT_SYMBOL(__clear_user);
EXPORT_SYMBOL(copy_page);
#if defined(CONFIG_PCI) && defined(CONFIG_PPC32)
EXPORT_SYMBOL(isa_io_base);
EXPORT_SYMBOL(isa_mem_base);
EXPORT_SYMBOL(pci_dram_offset);
#endif /* CONFIG_PCI */
EXPORT_SYMBOL(start_thread);
#ifdef CONFIG_PPC_FPU
EXPORT_SYMBOL(giveup_fpu);
EXPORT_SYMBOL(load_fp_state);
EXPORT_SYMBOL(store_fp_state);
#endif
#ifdef CONFIG_ALTIVEC
EXPORT_SYMBOL(giveup_altivec);
EXPORT_SYMBOL(load_vr_state);
EXPORT_SYMBOL(store_vr_state);
#endif /* CONFIG_ALTIVEC */
#endif
#ifdef CONFIG_VSX
EXPORT_SYMBOL(giveup_vsx);
EXPORT_SYMBOL_GPL(__giveup_vsx);
#endif /* CONFIG_VSX */
#endif
#ifdef CONFIG_SPE
EXPORT_SYMBOL(giveup_spe);
#endif /* CONFIG_SPE */
#ifndef CONFIG_PPC64
EXPORT_SYMBOL(flush_instruction_cache);
#endif
EXPORT_SYMBOL(flush_dcache_range);
EXPORT_SYMBOL(flush_icache_range);
#ifdef CONFIG_SMP
#ifdef CONFIG_PPC32
EXPORT_SYMBOL(smp_hw_index);
#endif
#endif
#ifdef CONFIG_ADB
EXPORT_SYMBOL(adb_request);
EXPORT_SYMBOL(adb_register);
EXPORT_SYMBOL(adb_unregister);
EXPORT_SYMBOL(adb_poll);
EXPORT_SYMBOL(adb_try_handler_change);
#endif /* CONFIG_ADB */
#ifdef CONFIG_ADB_CUDA
EXPORT_SYMBOL(cuda_request);
EXPORT_SYMBOL(cuda_poll);
#endif /* CONFIG_ADB_CUDA */
EXPORT_SYMBOL(to_tm);
#ifdef CONFIG_PPC32
long long __ashrdi3(long long, int);
long long __ashldi3(long long, int);
long long __lshrdi3(long long, int);
EXPORT_SYMBOL(__ashrdi3);
EXPORT_SYMBOL(__ashldi3);
EXPORT_SYMBOL(__lshrdi3);
int __ucmpdi2(unsigned long long, unsigned long long);
EXPORT_SYMBOL(__ucmpdi2);
int __cmpdi2(long long, long long);
EXPORT_SYMBOL(__cmpdi2);
#endif
long long __bswapdi2(long long);
EXPORT_SYMBOL(__bswapdi2);
EXPORT_SYMBOL(memcpy);
EXPORT_SYMBOL(memset);
EXPORT_SYMBOL(memmove);
EXPORT_SYMBOL(memcmp);
EXPORT_SYMBOL(memchr);
#if defined(CONFIG_FB_VGA16_MODULE)
EXPORT_SYMBOL(screen_info);
#endif
#ifdef CONFIG_PPC32
EXPORT_SYMBOL(timer_interrupt);
EXPORT_SYMBOL(tb_ticks_per_jiffy);
EXPORT_SYMBOL(cacheable_memcpy);
EXPORT_SYMBOL(cacheable_memzero);
#endif
#ifdef CONFIG_PPC32
EXPORT_SYMBOL(switch_mmu_context);
#endif
#ifdef CONFIG_PPC_STD_MMU_32
extern long mol_trampoline;
EXPORT_SYMBOL(mol_trampoline); /* For MOL */
EXPORT_SYMBOL(flush_hash_pages); /* For MOL */
#ifdef CONFIG_SMP
extern int mmu_hash_lock;
EXPORT_SYMBOL(mmu_hash_lock); /* For MOL */
#endif /* CONFIG_SMP */
extern long *intercept_table;
EXPORT_SYMBOL(intercept_table);
#endif /* CONFIG_PPC_STD_MMU_32 */
#ifdef CONFIG_PPC_DCR_NATIVE
EXPORT_SYMBOL(__mtdcr);
EXPORT_SYMBOL(__mfdcr);
#endif
EXPORT_SYMBOL(empty_zero_page);
#ifdef CONFIG_PPC64
EXPORT_SYMBOL(__arch_hweight8);
EXPORT_SYMBOL(__arch_hweight16);
EXPORT_SYMBOL(__arch_hweight32);
EXPORT_SYMBOL(__arch_hweight64);
#endif
#ifdef CONFIG_PPC_BOOK3S_64
EXPORT_SYMBOL_GPL(mmu_psize_defs);
#endif
#ifdef CONFIG_EPAPR_PARAVIRT

61
arch/powerpc/kernel/ppc_ksyms_32.c Normal file
View file

@ -0,0 +1,61 @@
#include <linux/export.h>
#include <linux/smp.h>
#include <asm/page.h>
#include <asm/dma.h>
#include <asm/io.h>
#include <asm/hw_irq.h>
#include <asm/time.h>
#include <asm/mmu_context.h>
#include <asm/pgtable.h>
#include <asm/dcr.h>
EXPORT_SYMBOL(clear_pages);
EXPORT_SYMBOL(ISA_DMA_THRESHOLD);
EXPORT_SYMBOL(DMA_MODE_READ);
EXPORT_SYMBOL(DMA_MODE_WRITE);
#if defined(CONFIG_PCI)
EXPORT_SYMBOL(isa_io_base);
EXPORT_SYMBOL(isa_mem_base);
EXPORT_SYMBOL(pci_dram_offset);
#endif
#ifdef CONFIG_SMP
EXPORT_SYMBOL(smp_hw_index);
#endif
long long __ashrdi3(long long, int);
long long __ashldi3(long long, int);
long long __lshrdi3(long long, int);
int __ucmpdi2(unsigned long long, unsigned long long);
int __cmpdi2(long long, long long);
EXPORT_SYMBOL(__ashrdi3);
EXPORT_SYMBOL(__ashldi3);
EXPORT_SYMBOL(__lshrdi3);
EXPORT_SYMBOL(__ucmpdi2);
EXPORT_SYMBOL(__cmpdi2);
EXPORT_SYMBOL(timer_interrupt);
EXPORT_SYMBOL(tb_ticks_per_jiffy);
EXPORT_SYMBOL(switch_mmu_context);
#ifdef CONFIG_PPC_STD_MMU_32
extern long mol_trampoline;
EXPORT_SYMBOL(mol_trampoline); /* For MOL */
EXPORT_SYMBOL(flush_hash_pages); /* For MOL */
#ifdef CONFIG_SMP
extern int mmu_hash_lock;
EXPORT_SYMBOL(mmu_hash_lock); /* For MOL */
#endif /* CONFIG_SMP */
extern long *intercept_table;
EXPORT_SYMBOL(intercept_table);
#endif /* CONFIG_PPC_STD_MMU_32 */
#ifdef CONFIG_PPC_DCR_NATIVE
EXPORT_SYMBOL(__mtdcr);
EXPORT_SYMBOL(__mfdcr);
#endif
EXPORT_SYMBOL(flush_instruction_cache);

2
arch/powerpc/kernel/process.c
View file

@ -228,6 +228,7 @@ void giveup_vsx(struct task_struct *tsk)
giveup_altivec_maybe_transactional(tsk);
__giveup_vsx(tsk);
}
EXPORT_SYMBOL(giveup_vsx);
void flush_vsx_to_thread(struct task_struct *tsk)
{
@ -1316,6 +1317,7 @@ void start_thread(struct pt_regs *regs, unsigned long start, unsigned long sp)
current->thread.tm_tfiar = 0;
#endif /* CONFIG_PPC_TRANSACTIONAL_MEM */
}
EXPORT_SYMBOL(start_thread);
#define PR_FP_ALL_EXCEPT (PR_FP_EXC_DIV | PR_FP_EXC_OVF | PR_FP_EXC_UND \
| PR_FP_EXC_RES | PR_FP_EXC_INV)

13
arch/powerpc/kernel/prom.c
View file

@ -386,8 +386,9 @@ static int __init early_init_dt_scan_cpus(unsigned long node,
return 0;
}
int __init early_init_dt_scan_chosen_ppc(unsigned long node, const char *uname,
int depth, void *data)
static int __init early_init_dt_scan_chosen_ppc(unsigned long node,
const char *uname,
int depth, void *data)
{
const unsigned long *lprop; /* All these set by kernel, so no need to convert endian */
@ -641,6 +642,10 @@ void __init early_init_devtree(void *params)
DBG(" -> early_init_devtree(%p)\n", params);
/* Too early to BUG_ON(), do it by hand */
if (!early_init_dt_verify(params))
panic("BUG: Failed verifying flat device tree, bad version?");
/* Setup flat device-tree pointer */
initial_boot_params = params;
@ -663,14 +668,12 @@ void __init early_init_devtree(void *params)
* device-tree, including the platform type, initrd location and
* size, TCE reserve, and more ...
*/
of_scan_flat_dt(early_init_dt_scan_chosen_ppc, cmd_line);
of_scan_flat_dt(early_init_dt_scan_chosen_ppc, boot_command_line);
/* Scan memory nodes and rebuild MEMBLOCKs */
of_scan_flat_dt(early_init_dt_scan_root, NULL);
of_scan_flat_dt(early_init_dt_scan_memory_ppc, NULL);
/* Save command line for /proc/cmdline and then parse parameters */
strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
parse_early_param();
/* make sure we've parsed cmdline for mem= before this */

22
arch/powerpc/kernel/prom_init_check.sh
View file

@ -50,24 +50,14 @@ do
done
# ignore register save/restore funcitons
if [ "${UNDEF:0:9}" = "_restgpr_" ]; then
case $UNDEF in
_restgpr_*|_restgpr0_*|_rest32gpr_*)
OK=1
fi
if [ "${UNDEF:0:10}" = "_restgpr0_" ]; then
;;
_savegpr_*|_savegpr0_*|_save32gpr_*)
OK=1
fi
if [ "${UNDEF:0:11}" = "_rest32gpr_" ]; then
OK=1
fi
if [ "${UNDEF:0:9}" = "_savegpr_" ]; then
OK=1
fi
if [ "${UNDEF:0:10}" = "_savegpr0_" ]; then
OK=1
fi
if [ "${UNDEF:0:11}" = "_save32gpr_" ]; then
OK=1
fi
;;
esac
if [ $OK -eq 0 ]; then
ERROR=1

2
arch/powerpc/kernel/ptrace.c
View file

@ -932,7 +932,7 @@ void ptrace_triggered(struct perf_event *bp,
}
#endif /* CONFIG_HAVE_HW_BREAKPOINT */
int ptrace_set_debugreg(struct task_struct *task, unsigned long addr,
static int ptrace_set_debugreg(struct task_struct *task, unsigned long addr,
unsigned long data)
{
#ifdef CONFIG_HAVE_HW_BREAKPOINT

2
arch/powerpc/kernel/rtasd.c
View file

@ -286,7 +286,7 @@ static void prrn_work_fn(struct work_struct *work)
static DECLARE_WORK(prrn_work, prrn_work_fn);
void prrn_schedule_update(u32 scope)
static void prrn_schedule_update(u32 scope)
{
flush_work(&prrn_work);
prrn_update_scope = scope;

7
arch/powerpc/kernel/setup-common.c
View file

@ -81,8 +81,6 @@ EXPORT_SYMBOL_GPL(boot_cpuid);
unsigned long klimit = (unsigned long) _end;
char cmd_line[COMMAND_LINE_SIZE];
/*
* This still seems to be needed... -- paulus
*/
@ -94,6 +92,9 @@ struct screen_info screen_info = {
.orig_video_isVGA = 1,
.orig_video_points = 16
};
#if defined(CONFIG_FB_VGA16_MODULE)
EXPORT_SYMBOL(screen_info);
#endif
/* Variables required to store legacy IO irq routing */
int of_i8042_kbd_irq;
@ -382,7 +383,7 @@ void __init check_for_initrd(void)
initrd_start = initrd_end = 0;
if (initrd_start)
printk("Found initrd at 0x%lx:0x%lx\n", initrd_start, initrd_end);
pr_info("Found initrd at 0x%lx:0x%lx\n", initrd_start, initrd_end);
DBG(" <- check_for_initrd()\n");
#endif /* CONFIG_BLK_DEV_INITRD */

2
arch/powerpc/kernel/setup_32.c
View file

@ -268,7 +268,7 @@ static void __init exc_lvl_early_init(void)
/* Warning, IO base is not yet inited */
void __init setup_arch(char **cmdline_p)
{
*cmdline_p = cmd_line;
*cmdline_p = boot_command_line;
/* so udelay does something sensible, assume <= 1000 bogomips */
loops_per_jiffy = 500000000 / HZ;

32
arch/powerpc/kernel/setup_64.c
View file

@ -525,21 +525,31 @@ void __init setup_system(void)
printk("Starting Linux PPC64 %s\n", init_utsname()->version);
printk("-----------------------------------------------------\n");
printk("ppc64_pft_size = 0x%llx\n", ppc64_pft_size);
printk("physicalMemorySize = 0x%llx\n", memblock_phys_mem_size());
printk("ppc64_pft_size = 0x%llx\n", ppc64_pft_size);
printk("phys_mem_size = 0x%llx\n", memblock_phys_mem_size());
if (ppc64_caches.dline_size != 0x80)
printk("ppc64_caches.dcache_line_size = 0x%x\n",
ppc64_caches.dline_size);
printk("dcache_line_size = 0x%x\n", ppc64_caches.dline_size);
if (ppc64_caches.iline_size != 0x80)
printk("ppc64_caches.icache_line_size = 0x%x\n",
ppc64_caches.iline_size);
printk("icache_line_size = 0x%x\n", ppc64_caches.iline_size);
printk("cpu_features = 0x%016lx\n", cur_cpu_spec->cpu_features);
printk(" possible = 0x%016lx\n", CPU_FTRS_POSSIBLE);
printk(" always = 0x%016lx\n", CPU_FTRS_ALWAYS);
printk("cpu_user_features = 0x%08x 0x%08x\n", cur_cpu_spec->cpu_user_features,
cur_cpu_spec->cpu_user_features2);
printk("mmu_features = 0x%08x\n", cur_cpu_spec->mmu_features);
printk("firmware_features = 0x%016lx\n", powerpc_firmware_features);
#ifdef CONFIG_PPC_STD_MMU_64
if (htab_address)
printk("htab_address = 0x%p\n", htab_address);
printk("htab_hash_mask = 0x%lx\n", htab_hash_mask);
#endif /* CONFIG_PPC_STD_MMU_64 */
printk("htab_address = 0x%p\n", htab_address);
printk("htab_hash_mask = 0x%lx\n", htab_hash_mask);
#endif
if (PHYSICAL_START > 0)
printk("physical_start = 0x%llx\n",
printk("physical_start = 0x%llx\n",
(unsigned long long)PHYSICAL_START);
printk("-----------------------------------------------------\n");
@ -657,7 +667,7 @@ void __init setup_arch(char **cmdline_p)
{
ppc64_boot_msg(0x12, "Setup Arch");
*cmdline_p = cmd_line;
*cmdline_p = boot_command_line;
/*
* Set cache line size based on type of cpu as a default.

11
arch/powerpc/kernel/smp.c
View file

@ -52,6 +52,7 @@
#endif
#include <asm/vdso.h>
#include <asm/debug.h>
#include <asm/kexec.h>
#ifdef DEBUG
#include <asm/udbg.h>
@ -379,8 +380,11 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
/*
* numa_node_id() works after this.
*/
set_cpu_numa_node(cpu, numa_cpu_lookup_table[cpu]);
set_cpu_numa_mem(cpu, local_memory_node(numa_cpu_lookup_table[cpu]));
if (cpu_present(cpu)) {
set_cpu_numa_node(cpu, numa_cpu_lookup_table[cpu]);
set_cpu_numa_mem(cpu,
local_memory_node(numa_cpu_lookup_table[cpu]));
}
}
cpumask_set_cpu(boot_cpuid, cpu_sibling_mask(boot_cpuid));
@ -728,6 +732,9 @@ void start_secondary(void *unused)
}
traverse_core_siblings(cpu, true);
set_numa_node(numa_cpu_lookup_table[cpu]);
set_numa_mem(local_memory_node(numa_cpu_lookup_table[cpu]));
smp_wmb();
notify_cpu_starting(cpu);
set_cpu_online(cpu, true);

5
arch/powerpc/kernel/time.c
View file

@ -479,7 +479,7 @@ void arch_irq_work_raise(void)
#endif /* CONFIG_IRQ_WORK */
void __timer_interrupt(void)
static void __timer_interrupt(void)
{
struct pt_regs *regs = get_irq_regs();
u64 *next_tb = &__get_cpu_var(decrementers_next_tb);
@ -643,7 +643,7 @@ static int __init get_freq(char *name, int cells, unsigned long *val)
return found;
}
void start_cpu_decrementer(void)
static void start_cpu_decrementer(void)
{
#if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
/* Clear any pending timer interrupts */
@ -1024,6 +1024,7 @@ void to_tm(int tim, struct rtc_time * tm)
*/
GregorianDay(tm);
}
EXPORT_SYMBOL(to_tm);
/*
* Divide a 128-bit dividend by a 32-bit divisor, leaving a 128 bit

2
arch/powerpc/lib/Makefile
View file

@ -10,7 +10,7 @@ CFLAGS_REMOVE_code-patching.o = -pg
CFLAGS_REMOVE_feature-fixups.o = -pg
obj-y := string.o alloc.o \
crtsavres.o
crtsavres.o ppc_ksyms.o
obj-$(CONFIG_PPC32) += div64.o copy_32.o
obj-$(CONFIG_HAS_IOMEM) += devres.o

2
arch/powerpc/lib/feature-fixups.c
View file

@ -164,7 +164,7 @@ static long calc_offset(struct fixup_entry *entry, unsigned int *p)
return (unsigned long)p - (unsigned long)entry;
}
void test_basic_patching(void)
static void test_basic_patching(void)
{
extern unsigned int ftr_fixup_test1;
extern unsigned int end_ftr_fixup_test1;

39
arch/powerpc/lib/ppc_ksyms.c Normal file
View file

@ -0,0 +1,39 @@
#include <linux/string.h>
#include <linux/uaccess.h>
#include <linux/bitops.h>
#include <net/checksum.h>
EXPORT_SYMBOL(memcpy);
EXPORT_SYMBOL(memset);
EXPORT_SYMBOL(memmove);
EXPORT_SYMBOL(memcmp);
EXPORT_SYMBOL(memchr);
#ifdef CONFIG_PPC32
EXPORT_SYMBOL(cacheable_memcpy);
EXPORT_SYMBOL(cacheable_memzero);
#endif
EXPORT_SYMBOL(strcpy);
EXPORT_SYMBOL(strncpy);
EXPORT_SYMBOL(strcat);
EXPORT_SYMBOL(strlen);
EXPORT_SYMBOL(strcmp);
EXPORT_SYMBOL(strncmp);
#ifndef CONFIG_GENERIC_CSUM
EXPORT_SYMBOL(csum_partial);
EXPORT_SYMBOL(csum_partial_copy_generic);
EXPORT_SYMBOL(ip_fast_csum);
EXPORT_SYMBOL(csum_tcpudp_magic);
#endif
EXPORT_SYMBOL(__copy_tofrom_user);
EXPORT_SYMBOL(__clear_user);
EXPORT_SYMBOL(copy_page);
#ifdef CONFIG_PPC64
EXPORT_SYMBOL(__arch_hweight8);
EXPORT_SYMBOL(__arch_hweight16);
EXPORT_SYMBOL(__arch_hweight32);
EXPORT_SYMBOL(__arch_hweight64);
#endif

1006
arch/powerpc/lib/sstep.c
View file

File diff suppressed because it is too large Load diff

1
arch/powerpc/mm/Makefile
View file

@ -34,3 +34,4 @@ obj-$(CONFIG_TRANSPARENT_HUGEPAGE) += hugepage-hash64.o
obj-$(CONFIG_PPC_SUBPAGE_PROT) += subpage-prot.o
obj-$(CONFIG_NOT_COHERENT_CACHE) += dma-noncoherent.o
obj-$(CONFIG_HIGHMEM) += highmem.o
obj-$(CONFIG_PPC_COPRO_BASE) += copro_fault.o

69
arch/powerpc/platforms/cell/spu_fault.c → arch/powerpc/mm/copro_fault.c
View file

@ -1,5 +1,5 @@
/*
* SPU mm fault handler
* CoProcessor (SPU/AFU) mm fault handler
*
* (C) Copyright IBM Deutschland Entwicklung GmbH 2007
*
@ -23,16 +23,17 @@
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/export.h>
#include <asm/reg.h>
#include <asm/copro.h>
#include <asm/spu.h>
#include <asm/spu_csa.h>
#include <misc/cxl.h>
/*
* This ought to be kept in sync with the powerpc specific do_page_fault
* function. Currently, there are a few corner cases that we haven't had
* to handle fortunately.
*/
int spu_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
int copro_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
unsigned long dsisr, unsigned *flt)
{
struct vm_area_struct *vma;
@ -58,12 +59,12 @@ int spu_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
goto out_unlock;
}
is_write = dsisr & MFC_DSISR_ACCESS_PUT;
is_write = dsisr & DSISR_ISSTORE;
if (is_write) {
if (!(vma->vm_flags & VM_WRITE))
goto out_unlock;
} else {
if (dsisr & MFC_DSISR_ACCESS_DENIED)
if (dsisr & DSISR_PROTFAULT)
goto out_unlock;
if (!(vma->vm_flags & (VM_READ | VM_EXEC)))
goto out_unlock;
@ -91,4 +92,58 @@ int spu_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
up_read(&mm->mmap_sem);
return ret;
}
EXPORT_SYMBOL_GPL(spu_handle_mm_fault);
EXPORT_SYMBOL_GPL(copro_handle_mm_fault);
int copro_calculate_slb(struct mm_struct *mm, u64 ea, struct copro_slb *slb)
{
u64 vsid;
int psize, ssize;
slb->esid = (ea & ESID_MASK) | SLB_ESID_V;
switch (REGION_ID(ea)) {
case USER_REGION_ID:
pr_devel("%s: 0x%llx -- USER_REGION_ID\n", __func__, ea);
psize = get_slice_psize(mm, ea);
ssize = user_segment_size(ea);
vsid = get_vsid(mm->context.id, ea, ssize);
break;
case VMALLOC_REGION_ID:
pr_devel("%s: 0x%llx -- VMALLOC_REGION_ID\n", __func__, ea);
if (ea < VMALLOC_END)
psize = mmu_vmalloc_psize;
else
psize = mmu_io_psize;
ssize = mmu_kernel_ssize;
vsid = get_kernel_vsid(ea, mmu_kernel_ssize);
break;
case KERNEL_REGION_ID:
pr_devel("%s: 0x%llx -- KERNEL_REGION_ID\n", __func__, ea);
psize = mmu_linear_psize;
ssize = mmu_kernel_ssize;
vsid = get_kernel_vsid(ea, mmu_kernel_ssize);
break;
default:
pr_debug("%s: invalid region access at %016llx\n", __func__, ea);
return 1;
}
vsid = (vsid << slb_vsid_shift(ssize)) | SLB_VSID_USER;
vsid |= mmu_psize_defs[psize].sllp |
((ssize == MMU_SEGSIZE_1T) ? SLB_VSID_B_1T : 0);
slb->vsid = vsid;
return 0;
}
EXPORT_SYMBOL_GPL(copro_calculate_slb);
void copro_flush_all_slbs(struct mm_struct *mm)
{
#ifdef CONFIG_SPU_BASE
spu_flush_all_slbs(mm);
#endif
cxl_slbia(mm);
}
EXPORT_SYMBOL_GPL(copro_flush_all_slbs);

43
arch/powerpc/mm/fault.c
View file

@ -33,6 +33,7 @@
#include <linux/magic.h>
#include <linux/ratelimit.h>
#include <linux/context_tracking.h>
#include <linux/hugetlb.h>
#include <asm/firmware.h>
#include <asm/page.h>
@ -114,22 +115,37 @@ static int store_updates_sp(struct pt_regs *regs)
#define MM_FAULT_CONTINUE -1
#define MM_FAULT_ERR(sig) (sig)
static int do_sigbus(struct pt_regs *regs, unsigned long address)
static int do_sigbus(struct pt_regs *regs, unsigned long address,
unsigned int fault)
{
siginfo_t info;
unsigned int lsb = 0;
up_read(&current->mm->mmap_sem);
if (user_mode(regs)) {
current->thread.trap_nr = BUS_ADRERR;
info.si_signo = SIGBUS;
info.si_errno = 0;
info.si_code = BUS_ADRERR;
info.si_addr = (void __user *)address;
force_sig_info(SIGBUS, &info, current);
return MM_FAULT_RETURN;
if (!user_mode(regs))
return MM_FAULT_ERR(SIGBUS);
current->thread.trap_nr = BUS_ADRERR;
info.si_signo = SIGBUS;
info.si_errno = 0;
info.si_code = BUS_ADRERR;
info.si_addr = (void __user *)address;
#ifdef CONFIG_MEMORY_FAILURE
if (fault & (VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE)) {
pr_err("MCE: Killing %s:%d due to hardware memory corruption fault at %lx\n",
current->comm, current->pid, address);
info.si_code = BUS_MCEERR_AR;
}
return MM_FAULT_ERR(SIGBUS);
if (fault & VM_FAULT_HWPOISON_LARGE)
lsb = hstate_index_to_shift(VM_FAULT_GET_HINDEX(fault));
if (fault & VM_FAULT_HWPOISON)
lsb = PAGE_SHIFT;
#endif
info.si_addr_lsb = lsb;
force_sig_info(SIGBUS, &info, current);
return MM_FAULT_RETURN;
}
static int mm_fault_error(struct pt_regs *regs, unsigned long addr, int fault)
@ -170,11 +186,8 @@ static int mm_fault_error(struct pt_regs *regs, unsigned long addr, int fault)
return MM_FAULT_RETURN;
}
/* Bus error. x86 handles HWPOISON here, we'll add this if/when
* we support the feature in HW
*/
if (fault & VM_FAULT_SIGBUS)
return do_sigbus(regs, addr);
if (fault & (VM_FAULT_SIGBUS|VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE))
return do_sigbus(regs, addr, fault);
/* We don't understand the fault code, this is fatal */
BUG();

6
arch/powerpc/mm/hash_native_64.c
View file

@ -29,6 +29,8 @@
#include <asm/kexec.h>
#include <asm/ppc-opcode.h>
#include <misc/cxl.h>
#ifdef DEBUG_LOW
#define DBG_LOW(fmt...) udbg_printf(fmt)
#else
@ -149,9 +151,11 @@ static inline void __tlbiel(unsigned long vpn, int psize, int apsize, int ssize)
static inline void tlbie(unsigned long vpn, int psize, int apsize,
int ssize, int local)
{
unsigned int use_local = local && mmu_has_feature(MMU_FTR_TLBIEL);
unsigned int use_local;
int lock_tlbie = !mmu_has_feature(MMU_FTR_LOCKLESS_TLBIE);
use_local = local && mmu_has_feature(MMU_FTR_TLBIEL) && !cxl_ctx_in_use();
if (use_local)
use_local = mmu_psize_defs[psize].tlbiel;
if (lock_tlbie && !use_local)

158
arch/powerpc/mm/hash_utils_64.c
View file

@ -51,7 +51,7 @@
#include <asm/cacheflush.h>
#include <asm/cputable.h>
#include <asm/sections.h>
#include <asm/spu.h>
#include <asm/copro.h>
#include <asm/udbg.h>
#include <asm/code-patching.h>
#include <asm/fadump.h>
@ -92,12 +92,14 @@ extern unsigned long dart_tablebase;
static unsigned long _SDR1;
struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
EXPORT_SYMBOL_GPL(mmu_psize_defs);
struct hash_pte *htab_address;
unsigned long htab_size_bytes;
unsigned long htab_hash_mask;
EXPORT_SYMBOL_GPL(htab_hash_mask);
int mmu_linear_psize = MMU_PAGE_4K;
EXPORT_SYMBOL_GPL(mmu_linear_psize);
int mmu_virtual_psize = MMU_PAGE_4K;
int mmu_vmalloc_psize = MMU_PAGE_4K;
#ifdef CONFIG_SPARSEMEM_VMEMMAP
@ -105,6 +107,7 @@ int mmu_vmemmap_psize = MMU_PAGE_4K;
#endif
int mmu_io_psize = MMU_PAGE_4K;
int mmu_kernel_ssize = MMU_SEGSIZE_256M;
EXPORT_SYMBOL_GPL(mmu_kernel_ssize);
int mmu_highuser_ssize = MMU_SEGSIZE_256M;
u16 mmu_slb_size = 64;
EXPORT_SYMBOL_GPL(mmu_slb_size);
@ -333,70 +336,69 @@ static int __init htab_dt_scan_page_sizes(unsigned long node,
return 0;
prop = of_get_flat_dt_prop(node, "ibm,segment-page-sizes", &size);
if (prop != NULL) {
pr_info("Page sizes from device-tree:\n");
size /= 4;
cur_cpu_spec->mmu_features &= ~(MMU_FTR_16M_PAGE);
while(size > 0) {
unsigned int base_shift = be32_to_cpu(prop[0]);
unsigned int slbenc = be32_to_cpu(prop[1]);
unsigned int lpnum = be32_to_cpu(prop[2]);
struct mmu_psize_def *def;
int idx, base_idx;
if (!prop)
return 0;
size -= 3; prop += 3;
base_idx = get_idx_from_shift(base_shift);
if (base_idx < 0) {
/*
* skip the pte encoding also
*/
prop += lpnum * 2; size -= lpnum * 2;
continue;
}
def = &mmu_psize_defs[base_idx];
if (base_idx == MMU_PAGE_16M)
cur_cpu_spec->mmu_features |= MMU_FTR_16M_PAGE;
pr_info("Page sizes from device-tree:\n");
size /= 4;
cur_cpu_spec->mmu_features &= ~(MMU_FTR_16M_PAGE);
while(size > 0) {
unsigned int base_shift = be32_to_cpu(prop[0]);
unsigned int slbenc = be32_to_cpu(prop[1]);
unsigned int lpnum = be32_to_cpu(prop[2]);
struct mmu_psize_def *def;
int idx, base_idx;
def->shift = base_shift;
if (base_shift <= 23)
def->avpnm = 0;
else
def->avpnm = (1 << (base_shift - 23)) - 1;
def->sllp = slbenc;
/*
* We don't know for sure what's up with tlbiel, so
* for now we only set it for 4K and 64K pages
*/
if (base_idx == MMU_PAGE_4K || base_idx == MMU_PAGE_64K)
def->tlbiel = 1;
else
def->tlbiel = 0;
while (size > 0 && lpnum) {
unsigned int shift = be32_to_cpu(prop[0]);
int penc = be32_to_cpu(prop[1]);
prop += 2; size -= 2;
lpnum--;
idx = get_idx_from_shift(shift);
if (idx < 0)
continue;
if (penc == -1)
pr_err("Invalid penc for base_shift=%d "
"shift=%d\n", base_shift, shift);
def->penc[idx] = penc;
pr_info("base_shift=%d: shift=%d, sllp=0x%04lx,"
" avpnm=0x%08lx, tlbiel=%d, penc=%d\n",
base_shift, shift, def->sllp,
def->avpnm, def->tlbiel, def->penc[idx]);
}
size -= 3; prop += 3;
base_idx = get_idx_from_shift(base_shift);
if (base_idx < 0) {
/* skip the pte encoding also */
prop += lpnum * 2; size -= lpnum * 2;
continue;
}
def = &mmu_psize_defs[base_idx];
if (base_idx == MMU_PAGE_16M)
cur_cpu_spec->mmu_features |= MMU_FTR_16M_PAGE;
def->shift = base_shift;
if (base_shift <= 23)
def->avpnm = 0;
else
def->avpnm = (1 << (base_shift - 23)) - 1;
def->sllp = slbenc;
/*
* We don't know for sure what's up with tlbiel, so
* for now we only set it for 4K and 64K pages
*/
if (base_idx == MMU_PAGE_4K || base_idx == MMU_PAGE_64K)
def->tlbiel = 1;
else
def->tlbiel = 0;
while (size > 0 && lpnum) {
unsigned int shift = be32_to_cpu(prop[0]);
int penc = be32_to_cpu(prop[1]);
prop += 2; size -= 2;
lpnum--;
idx = get_idx_from_shift(shift);
if (idx < 0)
continue;
if (penc == -1)
pr_err("Invalid penc for base_shift=%d "
"shift=%d\n", base_shift, shift);
def->penc[idx] = penc;
pr_info("base_shift=%d: shift=%d, sllp=0x%04lx,"
" avpnm=0x%08lx, tlbiel=%d, penc=%d\n",
base_shift, shift, def->sllp,
def->avpnm, def->tlbiel, def->penc[idx]);
}
return 1;
}
return 0;
return 1;
}
#ifdef CONFIG_HUGETLB_PAGE
@ -867,7 +869,7 @@ unsigned int hash_page_do_lazy_icache(unsigned int pp, pte_t pte, int trap)
}
#ifdef CONFIG_PPC_MM_SLICES
unsigned int get_paca_psize(unsigned long addr)
static unsigned int get_paca_psize(unsigned long addr)
{
u64 lpsizes;
unsigned char *hpsizes;
@ -901,10 +903,8 @@ void demote_segment_4k(struct mm_struct *mm, unsigned long addr)
if (get_slice_psize(mm, addr) == MMU_PAGE_4K)
return;
slice_set_range_psize(mm, addr, 1, MMU_PAGE_4K);
#ifdef CONFIG_SPU_BASE
spu_flush_all_slbs(mm);
#endif
if (get_paca_psize(addr) != MMU_PAGE_4K) {
copro_flush_all_slbs(mm);
if ((get_paca_psize(addr) != MMU_PAGE_4K) && (current->mm == mm)) {
get_paca()->context = mm->context;
slb_flush_and_rebolt();
}
@ -989,12 +989,11 @@ static void check_paca_psize(unsigned long ea, struct mm_struct *mm,
* -1 - critical hash insertion error
* -2 - access not permitted by subpage protection mechanism
*/
int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
int hash_page_mm(struct mm_struct *mm, unsigned long ea, unsigned long access, unsigned long trap)
{
enum ctx_state prev_state = exception_enter();
pgd_t *pgdir;
unsigned long vsid;
struct mm_struct *mm;
pte_t *ptep;
unsigned hugeshift;
const struct cpumask *tmp;
@ -1008,7 +1007,6 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
switch (REGION_ID(ea)) {
case USER_REGION_ID:
user_region = 1;
mm = current->mm;
if (! mm) {
DBG_LOW(" user region with no mm !\n");
rc = 1;
@ -1019,7 +1017,6 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
vsid = get_vsid(mm->context.id, ea, ssize);
break;
case VMALLOC_REGION_ID:
mm = &init_mm;
vsid = get_kernel_vsid(ea, mmu_kernel_ssize);
if (ea < VMALLOC_END)
psize = mmu_vmalloc_psize;
@ -1104,7 +1101,8 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
WARN_ON(1);
}
#endif
check_paca_psize(ea, mm, psize, user_region);
if (current->mm == mm)
check_paca_psize(ea, mm, psize, user_region);
goto bail;
}
@ -1141,13 +1139,12 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
"to 4kB pages because of "
"non-cacheable mapping\n");
psize = mmu_vmalloc_psize = MMU_PAGE_4K;
#ifdef CONFIG_SPU_BASE
spu_flush_all_slbs(mm);
#endif
copro_flush_all_slbs(mm);
}
}
check_paca_psize(ea, mm, psize, user_region);
if (current->mm == mm)
check_paca_psize(ea, mm, psize, user_region);
#endif /* CONFIG_PPC_64K_PAGES */
#ifdef CONFIG_PPC_HAS_HASH_64K
@ -1182,6 +1179,17 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
exception_exit(prev_state);
return rc;
}
EXPORT_SYMBOL_GPL(hash_page_mm);
int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
{
struct mm_struct *mm = current->mm;
if (REGION_ID(ea) == VMALLOC_REGION_ID)
mm = &init_mm;
return hash_page_mm(mm, ea, access, trap);
}
EXPORT_SYMBOL_GPL(hash_page);
void hash_preload(struct mm_struct *mm, unsigned long ea,

4
arch/powerpc/mm/init_32.c
View file

@ -106,11 +106,11 @@ unsigned long __max_low_memory = MAX_LOW_MEM;
void MMU_setup(void)
{
/* Check for nobats option (used in mapin_ram). */
if (strstr(cmd_line, "nobats")) {
if (strstr(boot_command_line, "nobats")) {
__map_without_bats = 1;
}
if (strstr(cmd_line, "noltlbs")) {
if (strstr(boot_command_line, "noltlbs")) {
__map_without_ltlbs = 1;
}
#ifdef CONFIG_DEBUG_PAGEALLOC

3
arch/powerpc/mm/init_64.c
View file

@ -233,9 +233,6 @@ static void __meminit vmemmap_create_mapping(unsigned long start,
}
#ifdef CONFIG_MEMORY_HOTPLUG
extern int htab_remove_mapping(unsigned long vstart, unsigned long vend,
int psize, int ssize);
static void vmemmap_remove_mapping(unsigned long start,
unsigned long page_size)
{

68
arch/powerpc/mm/mem.c
View file

@ -260,6 +260,60 @@ static int __init mark_nonram_nosave(void)
}
return 0;
}
#else /* CONFIG_NEED_MULTIPLE_NODES */
static int __init mark_nonram_nosave(void)
{
return 0;
}
#endif
static bool zone_limits_final;
static unsigned long max_zone_pfns[MAX_NR_ZONES] = {
[0 ... MAX_NR_ZONES - 1] = ~0UL
};
/*
* Restrict the specified zone and all more restrictive zones
* to be below the specified pfn. May not be called after
* paging_init().
*/
void __init limit_zone_pfn(enum zone_type zone, unsigned long pfn_limit)
{
int i;
if (WARN_ON(zone_limits_final))
return;
for (i = zone; i >= 0; i--) {
if (max_zone_pfns[i] > pfn_limit)
max_zone_pfns[i] = pfn_limit;
}
}
/*
* Find the least restrictive zone that is entirely below the
* specified pfn limit. Returns < 0 if no suitable zone is found.
*
* pfn_limit must be u64 because it can exceed 32 bits even on 32-bit
* systems -- the DMA limit can be higher than any possible real pfn.
*/
int dma_pfn_limit_to_zone(u64 pfn_limit)
{
enum zone_type top_zone = ZONE_NORMAL;
int i;
#ifdef CONFIG_HIGHMEM
top_zone = ZONE_HIGHMEM;
#endif
for (i = top_zone; i >= 0; i--) {
if (max_zone_pfns[i] <= pfn_limit)
return i;
}
return -EPERM;
}
/*
* paging_init() sets up the page tables - in fact we've already done this.
@ -268,7 +322,7 @@ void __init paging_init(void)
{
unsigned long long total_ram = memblock_phys_mem_size();
phys_addr_t top_of_ram = memblock_end_of_DRAM();
unsigned long max_zone_pfns[MAX_NR_ZONES];
enum zone_type top_zone;
#ifdef CONFIG_PPC32
unsigned long v = __fix_to_virt(__end_of_fixed_addresses - 1);
@ -290,18 +344,20 @@ void __init paging_init(void)
(unsigned long long)top_of_ram, total_ram);
printk(KERN_DEBUG "Memory hole size: %ldMB\n",
(long int)((top_of_ram - total_ram) >> 20));
memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
#ifdef CONFIG_HIGHMEM
max_zone_pfns[ZONE_DMA] = lowmem_end_addr >> PAGE_SHIFT;
max_zone_pfns[ZONE_HIGHMEM] = top_of_ram >> PAGE_SHIFT;
top_zone = ZONE_HIGHMEM;
limit_zone_pfn(ZONE_NORMAL, lowmem_end_addr >> PAGE_SHIFT);
#else
max_zone_pfns[ZONE_DMA] = top_of_ram >> PAGE_SHIFT;
top_zone = ZONE_NORMAL;
#endif
limit_zone_pfn(top_zone, top_of_ram >> PAGE_SHIFT);
zone_limits_final = true;
free_area_init_nodes(max_zone_pfns);
mark_nonram_nosave();
}
#endif /* ! CONFIG_NEED_MULTIPLE_NODES */
static void __init register_page_bootmem_info(void)
{

27
arch/powerpc/mm/numa.c
View file

@ -538,7 +538,7 @@ static int of_drconf_to_nid_single(struct of_drconf_cell *drmem,
*/
static int numa_setup_cpu(unsigned long lcpu)
{
int nid;
int nid = -1;
struct device_node *cpu;
/*
@ -555,19 +555,21 @@ static int numa_setup_cpu(unsigned long lcpu)
if (!cpu) {
WARN_ON(1);
nid = 0;
goto out;
if (cpu_present(lcpu))
goto out_present;
else
goto out;
}
nid = of_node_to_nid_single(cpu);
out_present:
if (nid < 0 || !node_online(nid))
nid = first_online_node;
out:
map_cpu_to_node(lcpu, nid);
of_node_put(cpu);
out:
return nid;
}
@ -1127,20 +1129,11 @@ void __init do_init_bootmem(void)
* even before we online them, so that we can use cpu_to_{node,mem}
* early in boot, cf. smp_prepare_cpus().
*/
for_each_possible_cpu(cpu) {
cpu_numa_callback(&ppc64_numa_nb, CPU_UP_PREPARE,
(void *)(unsigned long)cpu);
for_each_present_cpu(cpu) {
numa_setup_cpu((unsigned long)cpu);
}
}
void __init paging_init(void)
{
unsigned long max_zone_pfns[MAX_NR_ZONES];
memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
max_zone_pfns[ZONE_DMA] = memblock_end_of_DRAM() >> PAGE_SHIFT;
free_area_init_nodes(max_zone_pfns);
}
static int __init early_numa(char *p)
{
if (!p)

2
arch/powerpc/mm/pgtable.c
View file

@ -48,7 +48,7 @@ static inline int pte_looks_normal(pte_t pte)
(_PAGE_PRESENT | _PAGE_USER);
}
struct page * maybe_pte_to_page(pte_t pte)
static struct page *maybe_pte_to_page(pte_t pte)
{
unsigned long pfn = pte_pfn(pte);
struct page *page;

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