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powerpc updates for 5.8

Browse Source 
- Support for userspace to send requests directly to the on-chip GZIP
    accelerator on Power9.
 
  - Rework of our lockless page table walking (__find_linux_pte()) to make it
    safe against parallel page table manipulations without relying on an IPI for
    serialisation.
 
  - A series of fixes & enhancements to make our machine check handling more
    robust.
 
  - Lots of plumbing to add support for "prefixed" (64-bit) instructions on
    Power10.
 
  - Support for using huge pages for the linear mapping on 8xx (32-bit).
 
  - Remove obsolete Xilinx PPC405/PPC440 support, and an associated sound driver.
 
  - Removal of some obsolete 40x platforms and associated cruft.
 
  - Initial support for booting on Power10.
 
  - Lots of other small features, cleanups & fixes.
 
 Thanks to:
   Alexey Kardashevskiy, Alistair Popple, Andrew Donnellan, Andrey Abramov,
   Aneesh Kumar K.V, Balamuruhan S, Bharata B Rao, Bulent Abali, Cédric Le
   Goater, Chen Zhou, Christian Zigotzky, Christophe JAILLET, Christophe Leroy,
   Dmitry Torokhov, Emmanuel Nicolet, Erhard F., Gautham R. Shenoy, Geoff Levand,
   George Spelvin, Greg Kurz, Gustavo A. R. Silva, Gustavo Walbon, Haren Myneni,
   Hari Bathini, Joel Stanley, Jordan Niethe, Kajol Jain, Kees Cook, Leonardo
   Bras, Madhavan Srinivasan., Mahesh Salgaonkar, Markus Elfring, Michael
   Neuling, Michal Simek, Nathan Chancellor, Nathan Lynch, Naveen N. Rao,
   Nicholas Piggin, Oliver O'Halloran, Paul Mackerras, Pingfan Liu, Qian Cai, Ram
   Pai, Raphael Moreira Zinsly, Ravi Bangoria, Sam Bobroff, Sandipan Das, Segher
   Boessenkool, Stephen Rothwell, Sukadev Bhattiprolu, Tyrel Datwyler, Wolfram
   Sang, Xiongfeng Wang.
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Merge tag 'powerpc-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Support for userspace to send requests directly to the on-chip GZIP
   accelerator on Power9.

 - Rework of our lockless page table walking (__find_linux_pte()) to
   make it safe against parallel page table manipulations without
   relying on an IPI for serialisation.

 - A series of fixes & enhancements to make our machine check handling
   more robust.

 - Lots of plumbing to add support for "prefixed" (64-bit) instructions
   on Power10.

 - Support for using huge pages for the linear mapping on 8xx (32-bit).

 - Remove obsolete Xilinx PPC405/PPC440 support, and an associated sound
   driver.

 - Removal of some obsolete 40x platforms and associated cruft.

 - Initial support for booting on Power10.

 - Lots of other small features, cleanups & fixes.

Thanks to: Alexey Kardashevskiy, Alistair Popple, Andrew Donnellan,
Andrey Abramov, Aneesh Kumar K.V, Balamuruhan S, Bharata B Rao, Bulent
Abali, Cédric Le Goater, Chen Zhou, Christian Zigotzky, Christophe
JAILLET, Christophe Leroy, Dmitry Torokhov, Emmanuel Nicolet, Erhard F.,
Gautham R. Shenoy, Geoff Levand, George Spelvin, Greg Kurz, Gustavo A.
R. Silva, Gustavo Walbon, Haren Myneni, Hari Bathini, Joel Stanley,
Jordan Niethe, Kajol Jain, Kees Cook, Leonardo Bras, Madhavan
Srinivasan., Mahesh Salgaonkar, Markus Elfring, Michael Neuling, Michal
Simek, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin,
Oliver O'Halloran, Paul Mackerras, Pingfan Liu, Qian Cai, Ram Pai,
Raphael Moreira Zinsly, Ravi Bangoria, Sam Bobroff, Sandipan Das, Segher
Boessenkool, Stephen Rothwell, Sukadev Bhattiprolu, Tyrel Datwyler,
Wolfram Sang, Xiongfeng Wang.

* tag 'powerpc-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (299 commits)
  powerpc/pseries: Make vio and ibmebus initcalls pseries specific
  cxl: Remove dead Kconfig options
  powerpc: Add POWER10 architected mode
  powerpc/dt_cpu_ftrs: Add MMA feature
  powerpc/dt_cpu_ftrs: Enable Prefixed Instructions
  powerpc/dt_cpu_ftrs: Advertise support for ISA v3.1 if selected
  powerpc: Add support for ISA v3.1
  powerpc: Add new HWCAP bits
  powerpc/64s: Don't set FSCR bits in INIT_THREAD
  powerpc/64s: Save FSCR to init_task.thread.fscr after feature init
  powerpc/64s: Don't let DT CPU features set FSCR_DSCR
  powerpc/64s: Don't init FSCR_DSCR in __init_FSCR()
  powerpc/32s: Fix another build failure with CONFIG_PPC_KUAP_DEBUG
  powerpc/module_64: Use special stub for _mcount() with -mprofile-kernel
  powerpc/module_64: Simplify check for -mprofile-kernel ftrace relocations
  powerpc/module_64: Consolidate ftrace code
  powerpc/32: Disable KASAN with pages bigger than 16k
  powerpc/uaccess: Don't set KUEP by default on book3s/32
  powerpc/uaccess: Don't set KUAP by default on book3s/32
  powerpc/8xx: Reduce time spent in allow_user_access() and friends
  ...
This commit is contained in:
Linus Torvalds 2020-06-05 12:39:30 -07:00
commit 7ae77150d9
343 changed files with 10395 additions and 8589 deletions
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21
Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7
View File

@ -22,6 +22,27 @@ Description:
Exposes the "version" field of the 24x7 catalog. This is also
extractable from the provided binary "catalog" sysfs entry.
What: /sys/devices/hv_24x7/interface/sockets
Date: May 2020
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
Description: read only
This sysfs interface exposes the number of sockets present in the
system.
What: /sys/devices/hv_24x7/interface/chipspersocket
Date: May 2020
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
Description: read only
This sysfs interface exposes the number of chips per socket
present in the system.
What: /sys/devices/hv_24x7/interface/coresperchip
Date: May 2020
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
Description: read only
This sysfs interface exposes the number of cores per chip
present in the system.
What: /sys/bus/event_source/devices/hv_24x7/event_descs/<event-name>
Date: February 2014
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>

39
Documentation/ABI/testing/sysfs-devices-system-cpu
View File

@ -574,3 +574,42 @@ Description: Secure Virtual Machine
If 1, it means the system is using the Protected Execution
Facility in POWER9 and newer processors. i.e., it is a Secure
Virtual Machine.
What: /sys/devices/system/cpu/cpuX/purr
Date: Apr 2005
Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
Description: PURR ticks for this CPU since the system boot.
The Processor Utilization Resources Register (PURR) is
a 64-bit counter which provides an estimate of the
resources used by the CPU thread. The contents of this
register increases monotonically. This sysfs interface
exposes the number of PURR ticks for cpuX.
What: /sys/devices/system/cpu/cpuX/spurr
Date: Dec 2006
Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
Description: SPURR ticks for this CPU since the system boot.
The Scaled Processor Utilization Resources Register
(SPURR) is a 64-bit counter that provides a frequency
invariant estimate of the resources used by the CPU
thread. The contents of this register increases
monotonically. This sysfs interface exposes the number
of SPURR ticks for cpuX.
What: /sys/devices/system/cpu/cpuX/idle_purr
Date: Apr 2020
Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
Description: PURR ticks for cpuX when it was idle.
This sysfs interface exposes the number of PURR ticks
for cpuX when it was idle.
What: /sys/devices/system/cpu/cpuX/idle_spurr
Date: Apr 2020
Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
Description: SPURR ticks for cpuX when it was idle.
This sysfs interface exposes the number of SPURR ticks
for cpuX when it was idle.

5
Documentation/admin-guide/kernel-parameters.txt
View File

@ -874,6 +874,11 @@
can be useful when debugging issues that require an SLB
miss to occur.
stress_slb [PPC]
Limits the number of kernel SLB entries, and flushes
them frequently to increase the rate of SLB faults
on kernel addresses.
disable= [IPV6]
See Documentation/networking/ipv6.rst.

143
Documentation/devicetree/bindings/xilinx.txt
View File

@ -86,149 +86,6 @@
xlnx,use-parity = <0>;
};
Some IP cores actually implement 2 or more logical devices. In
this case, the device should still describe the whole IP core with
a single node and add a child node for each logical device. The
ranges property can be used to translate from parent IP-core to the
registers of each device. In addition, the parent node should be
compatible with the bus type 'xlnx,compound', and should contain
#address-cells and #size-cells, as with any other bus. (Note: this
makes the assumption that both logical devices have the same bus
binding. If this is not true, then separate nodes should be used
for each logical device). The 'cell-index' property can be used to
enumerate logical devices within an IP core. For example, the
following is the system.mhs entry for the dual ps2 controller found
on the ml403 reference design.
BEGIN opb_ps2_dual_ref
PARAMETER INSTANCE = opb_ps2_dual_ref_0
PARAMETER HW_VER = 1.00.a
PARAMETER C_BASEADDR = 0xA9000000
PARAMETER C_HIGHADDR = 0xA9001FFF
BUS_INTERFACE SOPB = opb_v20_0
PORT Sys_Intr1 = ps2_1_intr
PORT Sys_Intr2 = ps2_2_intr
PORT Clkin1 = ps2_clk_rx_1
PORT Clkin2 = ps2_clk_rx_2
PORT Clkpd1 = ps2_clk_tx_1
PORT Clkpd2 = ps2_clk_tx_2
PORT Rx1 = ps2_d_rx_1
PORT Rx2 = ps2_d_rx_2
PORT Txpd1 = ps2_d_tx_1
PORT Txpd2 = ps2_d_tx_2
END
It would result in the following device tree nodes:
opb_ps2_dual_ref_0: opb-ps2-dual-ref@a9000000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "xlnx,compound";
ranges = <0 a9000000 2000>;
// If this device had extra parameters, then they would
// go here.
ps2@0 {
compatible = "xlnx,opb-ps2-dual-ref-1.00.a";
reg = <0 40>;
interrupt-parent = <&opb_intc_0>;
interrupts = <3 0>;
cell-index = <0>;
};
ps2@1000 {
compatible = "xlnx,opb-ps2-dual-ref-1.00.a";
reg = <1000 40>;
interrupt-parent = <&opb_intc_0>;
interrupts = <3 0>;
cell-index = <0>;
};
};
Also, the system.mhs file defines bus attachments from the processor
to the devices. The device tree structure should reflect the bus
attachments. Again an example; this system.mhs fragment:
BEGIN ppc405_virtex4
PARAMETER INSTANCE = ppc405_0
PARAMETER HW_VER = 1.01.a
BUS_INTERFACE DPLB = plb_v34_0
BUS_INTERFACE IPLB = plb_v34_0
END
BEGIN opb_intc
PARAMETER INSTANCE = opb_intc_0
PARAMETER HW_VER = 1.00.c
PARAMETER C_BASEADDR = 0xD1000FC0
PARAMETER C_HIGHADDR = 0xD1000FDF
BUS_INTERFACE SOPB = opb_v20_0
END
BEGIN opb_uart16550
PARAMETER INSTANCE = opb_uart16550_0
PARAMETER HW_VER = 1.00.d
PARAMETER C_BASEADDR = 0xa0000000
PARAMETER C_HIGHADDR = 0xa0001FFF
BUS_INTERFACE SOPB = opb_v20_0
END
BEGIN plb_v34
PARAMETER INSTANCE = plb_v34_0
PARAMETER HW_VER = 1.02.a
END
BEGIN plb_bram_if_cntlr
PARAMETER INSTANCE = plb_bram_if_cntlr_0
PARAMETER HW_VER = 1.00.b
PARAMETER C_BASEADDR = 0xFFFF0000
PARAMETER C_HIGHADDR = 0xFFFFFFFF
BUS_INTERFACE SPLB = plb_v34_0
END
BEGIN plb2opb_bridge
PARAMETER INSTANCE = plb2opb_bridge_0
PARAMETER HW_VER = 1.01.a
PARAMETER C_RNG0_BASEADDR = 0x20000000
PARAMETER C_RNG0_HIGHADDR = 0x3FFFFFFF
PARAMETER C_RNG1_BASEADDR = 0x60000000
PARAMETER C_RNG1_HIGHADDR = 0x7FFFFFFF
PARAMETER C_RNG2_BASEADDR = 0x80000000
PARAMETER C_RNG2_HIGHADDR = 0xBFFFFFFF
PARAMETER C_RNG3_BASEADDR = 0xC0000000
PARAMETER C_RNG3_HIGHADDR = 0xDFFFFFFF
BUS_INTERFACE SPLB = plb_v34_0
BUS_INTERFACE MOPB = opb_v20_0
END
Gives this device tree (some properties removed for clarity):
plb@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "xlnx,plb-v34-1.02.a";
device_type = "ibm,plb";
ranges; // 1:1 translation
plb_bram_if_cntrl_0: bram@ffff0000 {
reg = <ffff0000 10000>;
}
opb@20000000 {
#address-cells = <1>;
#size-cells = <1>;
ranges = <20000000 20000000 20000000
60000000 60000000 20000000
80000000 80000000 40000000
c0000000 c0000000 20000000>;
opb_uart16550_0: serial@a0000000 {
reg = <a00000000 2000>;
};
opb_intc_0: interrupt-controller@d1000fc0 {
reg = <d1000fc0 20>;
};
};
};
That covers the general approach to binding xilinx IP cores into the
device tree. The following are bindings for specific devices:

28
Documentation/powerpc/bootwrapper.rst
View File

@ -70,28 +70,6 @@ Currently, the following image format targets exist:
kernel with this image type and it depends entirely on
the embedded device tree for all information.
The simpleImage is useful for booting systems with
an unknown firmware interface or for booting from
a debugger when no firmware is present (such as on
the Xilinx Virtex platform). The only assumption that
simpleImage makes is that RAM is correctly initialized
and that the MMU is either off or has RAM mapped to
base address 0.
simpleImage also supports inserting special platform
specific initialization code to the start of the bootup
sequence. The virtex405 platform uses this feature to
ensure that the cache is invalidated before caching
is enabled. Platform specific initialization code is
added as part of the wrapper script and is keyed on
the image target name. For example, all
simpleImage.virtex405-* targets will add the
virtex405-head.S initialization code (This also means
that the dts file for virtex405 targets should be
named (virtex405-<board>.dts). Search the wrapper
script for 'virtex405' and see the file
arch/powerpc/boot/virtex405-head.S for details.
treeImage.%; Image format for used with OpenBIOS firmware found
on some ppc4xx hardware. This image embeds a device
tree blob inside the image.
@ -116,10 +94,8 @@ Image types which embed a device tree blob (simpleImage, dtbImage, treeImage,
and cuImage) all generate the device tree blob from a file in the
arch/powerpc/boot/dts/ directory. The Makefile selects the correct device
tree source based on the name of the target. Therefore, if the kernel is
built with 'make treeImage.walnut simpleImage.virtex405-ml403', then the
build system will use arch/powerpc/boot/dts/walnut.dts to build
treeImage.walnut and arch/powerpc/boot/dts/virtex405-ml403.dts to build
the simpleImage.virtex405-ml403.
built with 'make treeImage.walnut', then the build system will use
arch/powerpc/boot/dts/walnut.dts to build treeImage.walnut.
Two special targets called 'zImage' and 'zImage.initrd' also exist. These
targets build all the default images as selected by the kernel configuration.

1
Documentation/powerpc/index.rst
View File

@ -30,6 +30,7 @@ powerpc
syscall64-abi
transactional_memory
ultravisor
vas-api
.. only:: subproject and html

27
Documentation/powerpc/transactional_memory.rst
View File

@ -245,3 +245,30 @@ POWER9N DD2.2.
Guest migration from POWER8 to POWER9 will work with POWER9N DD2.2 and
POWER9C DD1.2. Since earlier POWER9 processors don't support TM
emulation, migration from POWER8 to POWER9 is not supported there.
Kernel implementation
=====================
h/rfid mtmsrd quirk
-------------------
As defined in the ISA, rfid has a quirk which is useful in early
exception handling. When in a userspace transaction and we enter the
kernel via some exception, MSR will end up as TM=0 and TS=01 (ie. TM
off but TM suspended). Regularly the kernel will want change bits in
the MSR and will perform an rfid to do this. In this case rfid can
have SRR0 TM = 0 and TS = 00 (ie. TM off and non transaction) and the
resulting MSR will retain TM = 0 and TS=01 from before (ie. stay in
suspend). This is a quirk in the architecture as this would normally
be a transition from TS=01 to TS=00 (ie. suspend -> non transactional)
which is an illegal transition.
This quirk is described the architecture in the definition of rfid
with these lines:
if (MSR 29:31 ¬ = 0b010 | SRR1 29:31 ¬ = 0b000) then
MSR 29:31 <- SRR1 29:31
hrfid and mtmsrd have the same quirk.
The Linux kernel uses this quirk in it's early exception handling.

292
Documentation/powerpc/vas-api.rst Normal file
View File

@ -0,0 +1,292 @@
.. SPDX-License-Identifier: GPL-2.0
.. _VAS-API:
===================================================
Virtual Accelerator Switchboard (VAS) userspace API
===================================================
Introduction
============
Power9 processor introduced Virtual Accelerator Switchboard (VAS) which
allows both userspace and kernel communicate to co-processor
(hardware accelerator) referred to as the Nest Accelerator (NX). The NX
unit comprises of one or more hardware engines or co-processor types
such as 842 compression, GZIP compression and encryption. On power9,
userspace applications will have access to only GZIP Compression engine
which supports ZLIB and GZIP compression algorithms in the hardware.
To communicate with NX, kernel has to establish a channel or window and
then requests can be submitted directly without kernel involvement.
Requests to the GZIP engine must be formatted as a co-processor Request
Block (CRB) and these CRBs must be submitted to the NX using COPY/PASTE
instructions to paste the CRB to hardware address that is associated with
the engine's request queue.
The GZIP engine provides two priority levels of requests: Normal and
High. Only Normal requests are supported from userspace right now.
This document explains userspace API that is used to interact with
kernel to setup channel / window which can be used to send compression
requests directly to NX accelerator.
Overview
========
Application access to the GZIP engine is provided through
/dev/crypto/nx-gzip device node implemented by the VAS/NX device driver.
An application must open the /dev/crypto/nx-gzip device to obtain a file
descriptor (fd). Then should issue VAS_TX_WIN_OPEN ioctl with this fd to
establish connection to the engine. It means send window is opened on GZIP
engine for this process. Once a connection is established, the application
should use the mmap() system call to map the hardware address of engine's
request queue into the application's virtual address space.
The application can then submit one or more requests to the the engine by
using copy/paste instructions and pasting the CRBs to the virtual address
(aka paste_address) returned by mmap(). User space can close the
established connection or send window by closing the file descriptior
(close(fd)) or upon the process exit.
Note that applications can send several requests with the same window or
can establish multiple windows, but one window for each file descriptor.
Following sections provide additional details and references about the
individual steps.
NX-GZIP Device Node
===================
There is one /dev/crypto/nx-gzip node in the system and it provides
access to all GZIP engines in the system. The only valid operations on
/dev/crypto/nx-gzip are:
* open() the device for read and write.
* issue VAS_TX_WIN_OPEN ioctl
* mmap() the engine's request queue into application's virtual
address space (i.e. get a paste_address for the co-processor
engine).
* close the device node.
Other file operations on this device node are undefined.
Note that the copy and paste operations go directly to the hardware and
do not go through this device. Refer COPY/PASTE document for more
details.
Although a system may have several instances of the NX co-processor
engines (typically, one per P9 chip) there is just one
/dev/crypto/nx-gzip device node in the system. When the nx-gzip device
node is opened, Kernel opens send window on a suitable instance of NX
accelerator. It finds CPU on which the user process is executing and
determine the NX instance for the corresponding chip on which this CPU
belongs.
Applications may chose a specific instance of the NX co-processor using
the vas_id field in the VAS_TX_WIN_OPEN ioctl as detailed below.
A userspace library libnxz is available here but still in development:
https://github.com/abalib/power-gzip
Applications that use inflate / deflate calls can link with libnxz
instead of libz and use NX GZIP compression without any modification.
Open /dev/crypto/nx-gzip
========================
The nx-gzip device should be opened for read and write. No special
privileges are needed to open the device. Each window corresponds to one
file descriptor. So if the userspace process needs multiple windows,
several open calls have to be issued.
See open(2) system call man pages for other details such as return values,
error codes and restrictions.
VAS_TX_WIN_OPEN ioctl
=====================
Applications should use the VAS_TX_WIN_OPEN ioctl as follows to establish
a connection with NX co-processor engine:
::
struct vas_tx_win_open_attr {
__u32 version;
__s16 vas_id; /* specific instance of vas or -1
for default */
__u16 reserved1;
__u64 flags; /* For future use */
__u64 reserved2[6];
};
version: The version field must be currently set to 1.
vas_id: If '-1' is passed, kernel will make a best-effort attempt
to assign an optimal instance of NX for the process. To
select the specific VAS instance, refer
"Discovery of available VAS engines" section below.
flags, reserved1 and reserved2[6] fields are for future extension
and must be set to 0.
The attributes attr for the VAS_TX_WIN_OPEN ioctl are defined as
follows:
#define VAS_MAGIC 'v'
#define VAS_TX_WIN_OPEN _IOW(VAS_MAGIC, 1,
struct vas_tx_win_open_attr)
struct vas_tx_win_open_attr attr;
rc = ioctl(fd, VAS_TX_WIN_OPEN, &attr);
The VAS_TX_WIN_OPEN ioctl returns 0 on success. On errors, it
returns -1 and sets the errno variable to indicate the error.
Error conditions:
EINVAL fd does not refer to a valid VAS device.
EINVAL Invalid vas ID
EINVAL version is not set with proper value
EEXIST Window is already opened for the given fd
ENOMEM Memory is not available to allocate window
ENOSPC System has too many active windows (connections)
opened
EINVAL reserved fields are not set to 0.
See the ioctl(2) man page for more details, error codes and
restrictions.
mmap() NX-GZIP device
=====================
The mmap() system call for a NX-GZIP device fd returns a paste_address
that the application can use to copy/paste its CRB to the hardware engines.
::
paste_addr = mmap(addr, size, prot, flags, fd, offset);
Only restrictions on mmap for a NX-GZIP device fd are:
* size should be PAGE_SIZE
* offset parameter should be 0ULL
Refer to mmap(2) man page for additional details/restrictions.
In addition to the error conditions listed on the mmap(2) man
page, can also fail with one of the following error codes:
EINVAL fd is not associated with an open window
(i.e mmap() does not follow a successful call
to the VAS_TX_WIN_OPEN ioctl).
EINVAL offset field is not 0ULL.
Discovery of available VAS engines
==================================
Each available VAS instance in the system will have a device tree node
like /proc/device-tree/vas@* or /proc/device-tree/xscom@*/vas@*.
Determine the chip or VAS instance and use the corresponding ibm,vas-id
property value in this node to select specific VAS instance.
Copy/Paste operations
=====================
Applications should use the copy and paste instructions to send CRB to NX.
Refer section 4.4 in PowerISA for Copy/Paste instructions:
https://openpowerfoundation.org/?resource_lib=power-isa-version-3-0
CRB Specification and use NX
============================
Applications should format requests to the co-processor using the
co-processor Request Block (CRBs). Refer NX-GZIP user's manual for the format
of CRB and use NX from userspace such as sending requests and checking
request status.
NX Fault handling
=================
Applications send requests to NX and wait for the status by polling on
co-processor Status Block (CSB) flags. NX updates status in CSB after each
request is processed. Refer NX-GZIP user's manual for the format of CSB and
status flags.
In case if NX encounters translation error (called NX page fault) on CSB
address or any request buffer, raises an interrupt on the CPU to handle the
fault. Page fault can happen if an application passes invalid addresses or
request buffers are not in memory. The operating system handles the fault by
updating CSB with the following data:
csb.flags = CSB_V;
csb.cc = CSB_CC_TRANSLATION;
csb.ce = CSB_CE_TERMINATION;
csb.address = fault_address;
When an application receives translation error, it can touch or access
the page that has a fault address so that this page will be in memory. Then
the application can resend this request to NX.
If the OS can not update CSB due to invalid CSB address, sends SEGV signal
to the process who opened the send window on which the original request was
issued. This signal returns with the following siginfo struct:
siginfo.si_signo = SIGSEGV;
siginfo.si_errno = EFAULT;
siginfo.si_code = SEGV_MAPERR;
siginfo.si_addr = CSB adress;
In the case of multi-thread applications, NX send windows can be shared
across all threads. For example, a child thread can open a send window,
but other threads can send requests to NX using this window. These
requests will be successful even in the case of OS handling faults as long
as CSB address is valid. If the NX request contains an invalid CSB address,
the signal will be sent to the child thread that opened the window. But if
the thread is exited without closing the window and the request is issued
using this window. the signal will be issued to the thread group leader
(tgid). It is up to the application whether to ignore or handle these
signals.
NX-GZIP User's Manual:
https://github.com/libnxz/power-gzip/blob/master/power_nx_gzip_um.pdf
Simple example
==============
::
int use_nx_gzip()
{
int rc, fd;
void *addr;
struct vas_setup_attr txattr;
fd = open("/dev/crypto/nx-gzip", O_RDWR);
if (fd < 0) {
fprintf(stderr, "open nx-gzip failed\n");
return -1;
}
memset(&txattr, 0, sizeof(txattr));
txattr.version = 1;
txattr.vas_id = -1
rc = ioctl(fd, VAS_TX_WIN_OPEN,
(unsigned long)&txattr);
if (rc < 0) {
fprintf(stderr, "ioctl() n %d, error %d\n",
rc, errno);
return rc;
}
addr = mmap(NULL, 4096, PROT_READ|PROT_WRITE,
MAP_SHARED, fd, 0ULL);
if (addr == MAP_FAILED) {
fprintf(stderr, "mmap() failed, errno %d\n",
errno);
return -errno;
}
do {
//Format CRB request with compression or
//uncompression
// Refer tests for vas_copy/vas_paste
vas_copy((&crb, 0, 1);
vas_paste(addr, 0, 1);
// Poll on csb.flags with timeout
// csb address is listed in CRB
} while (true)
close(fd) or window can be closed upon process exit
}
Refer https://github.com/abalib/power-gzip for tests or more
use cases.

1
Documentation/userspace-api/ioctl/ioctl-number.rst
View File

@ -287,6 +287,7 @@ Code Seq# Include File Comments
'v' 00-1F linux/fs.h conflict!
'v' 00-0F linux/sonypi.h conflict!
'v' 00-0F media/v4l2-subdev.h conflict!
'v' 20-27 arch/powerpc/include/uapi/asm/vas-api.h VAS API
'v' C0-FF linux/meye.h conflict!
'w' all CERN SCI driver
'y' 00-1F packet based user level communications

2
MAINTAINERS
View File

@ -9874,7 +9874,7 @@ F: arch/powerpc/platforms/83xx/
F: arch/powerpc/platforms/85xx/
LINUX FOR POWERPC EMBEDDED PPC8XX
M: Christophe Leroy <christophe.leroy@c-s.fr>
M: Christophe Leroy <christophe.leroy@csgroup.eu>
L: linuxppc-dev@lists.ozlabs.org
S: Maintained
F: arch/powerpc/platforms/8xx/

69
arch/powerpc/Kconfig
View File

@ -171,8 +171,8 @@ config PPC
select HAVE_ARCH_AUDITSYSCALL
select HAVE_ARCH_HUGE_VMAP if PPC_BOOK3S_64 && PPC_RADIX_MMU
select HAVE_ARCH_JUMP_LABEL
select HAVE_ARCH_KASAN if PPC32
select HAVE_ARCH_KASAN_VMALLOC if PPC32
select HAVE_ARCH_KASAN if PPC32 && PPC_PAGE_SHIFT <= 14
select HAVE_ARCH_KASAN_VMALLOC if PPC32 && PPC_PAGE_SHIFT <= 14
select HAVE_ARCH_KGDB
select HAVE_ARCH_MMAP_RND_BITS
select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT
@ -477,7 +477,7 @@ config LD_HEAD_STUB_CATCH
If unsure, say "N".
config MPROFILE_KERNEL
depends on PPC64 && CPU_LITTLE_ENDIAN
depends on PPC64 && CPU_LITTLE_ENDIAN && FUNCTION_TRACER
def_bool $(success,$(srctree)/arch/powerpc/tools/gcc-check-mprofile-kernel.sh $(CC) -I$(srctree)/include -D__KERNEL__)
config HOTPLUG_CPU
@ -764,41 +764,18 @@ config THREAD_SHIFT
range 13 15
default "15" if PPC_256K_PAGES
default "14" if PPC64
default "14" if KASAN
default "13"
help
Used to define the stack size. The default is almost always what you
want. Only change this if you know what you are doing.
config ETEXT_SHIFT_BOOL
bool "Set custom etext alignment" if STRICT_KERNEL_RWX && \
(PPC_BOOK3S_32 || PPC_8xx)
depends on ADVANCED_OPTIONS
help
This option allows you to set the kernel end of text alignment. When
RAM is mapped by blocks, the alignment needs to fit the size and
number of possible blocks. The default should be OK for most configs.
Say N here unless you know what you are doing.
config ETEXT_SHIFT
int "_etext shift" if ETEXT_SHIFT_BOOL
range 17 28 if STRICT_KERNEL_RWX && PPC_BOOK3S_32
range 19 23 if STRICT_KERNEL_RWX && PPC_8xx
default 17 if STRICT_KERNEL_RWX && PPC_BOOK3S_32
default 19 if STRICT_KERNEL_RWX && PPC_8xx
default PPC_PAGE_SHIFT
help
On Book3S 32 (603+), IBATs are used to map kernel text.
Smaller is the alignment, greater is the number of necessary IBATs.
On 8xx, large pages (512kb or 8M) are used to map kernel linear
memory. Aligning to 8M reduces TLB misses as only 8M pages are used
in that case.
config DATA_SHIFT_BOOL
bool "Set custom data alignment" if STRICT_KERNEL_RWX && \
(PPC_BOOK3S_32 || PPC_8xx)
bool "Set custom data alignment"
depends on ADVANCED_OPTIONS
depends on STRICT_KERNEL_RWX || DEBUG_PAGEALLOC
depends on PPC_BOOK3S_32 || (PPC_8xx && !PIN_TLB_DATA && \
(!PIN_TLB_TEXT || !STRICT_KERNEL_RWX))
help
This option allows you to set the kernel data alignment. When
RAM is mapped by blocks, the alignment needs to fit the size and
@ -809,10 +786,13 @@ config DATA_SHIFT_BOOL
config DATA_SHIFT
int "Data shift" if DATA_SHIFT_BOOL
default 24 if STRICT_KERNEL_RWX && PPC64
range 17 28 if STRICT_KERNEL_RWX && PPC_BOOK3S_32
range 19 23 if STRICT_KERNEL_RWX && PPC_8xx
range 17 28 if (STRICT_KERNEL_RWX || DEBUG_PAGEALLOC) && PPC_BOOK3S_32
range 19 23 if (STRICT_KERNEL_RWX || DEBUG_PAGEALLOC) && PPC_8xx
default 22 if STRICT_KERNEL_RWX && PPC_BOOK3S_32
default 18 if DEBUG_PAGEALLOC && PPC_BOOK3S_32
default 23 if STRICT_KERNEL_RWX && PPC_8xx
default 23 if DEBUG_PAGEALLOC && PPC_8xx && PIN_TLB_DATA
default 19 if DEBUG_PAGEALLOC && PPC_8xx
default PPC_PAGE_SHIFT
help
On Book3S 32 (603+), DBATs are used to map kernel text and rodata RO.
@ -820,7 +800,8 @@ config DATA_SHIFT
On 8xx, large pages (512kb or 8M) are used to map kernel linear
memory. Aligning to 8M reduces TLB misses as only 8M pages are used
in that case.
in that case. If PIN_TLB is selected, it must be aligned to 8M as
8M pages will be pinned.
config FORCE_MAX_ZONEORDER
int "Maximum zone order"
@ -1218,26 +1199,6 @@ config TASK_SIZE
hex "Size of user task space" if TASK_SIZE_BOOL
default "0x80000000" if PPC_8xx
default "0xc0000000"
config PIN_TLB
bool "Pinned Kernel TLBs (860 ONLY)"
depends on ADVANCED_OPTIONS && PPC_8xx && \
!DEBUG_PAGEALLOC && !STRICT_KERNEL_RWX
config PIN_TLB_DATA
bool "Pinned TLB for DATA"
depends on PIN_TLB
default y
config PIN_TLB_IMMR
bool "Pinned TLB for IMMR"
depends on PIN_TLB || PPC_EARLY_DEBUG_CPM
default y
config PIN_TLB_TEXT
bool "Pinned TLB for TEXT"
depends on PIN_TLB
default y
endmenu
if PPC64

2
arch/powerpc/Kconfig.debug
View File

@ -230,7 +230,7 @@ config PPC_EARLY_DEBUG_40x
help
Select this to enable early debugging for IBM 40x chips via the
inbuilt serial port. This works on chips with a 16550 compatible
UART. Xilinx chips with uartlite cannot use this option.
UART.
config PPC_EARLY_DEBUG_CPM
bool "Early serial debugging for Freescale CPM-based serial ports"

14
arch/powerpc/boot/Makefile
View File

@ -75,11 +75,9 @@ $(obj)/cuboot-hotfoot.o: BOOTCFLAGS += -mcpu=405
$(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=405
$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=405
$(obj)/cuboot-acadia.o: BOOTCFLAGS += -mcpu=405
$(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405
$(obj)/treeboot-iss4xx.o: BOOTCFLAGS += -mcpu=405
$(obj)/treeboot-currituck.o: BOOTCFLAGS += -mcpu=405
$(obj)/treeboot-akebono.o: BOOTCFLAGS += -mcpu=405
$(obj)/virtex405-head.o: BOOTAFLAGS += -mcpu=405
# The pre-boot decompressors pull in a lot of kernel headers and other source
# files. This creates a bit of a dependency headache since we need to copy
@ -129,14 +127,12 @@ src-wlib-$(CONFIG_44x) += 4xx.c ebony.c bamboo.c
src-wlib-$(CONFIG_PPC_8xx) += mpc8xx.c planetcore.c fsl-soc.c
src-wlib-$(CONFIG_PPC_82xx) += pq2.c fsl-soc.c planetcore.c
src-wlib-$(CONFIG_EMBEDDED6xx) += ugecon.c fsl-soc.c
src-wlib-$(CONFIG_XILINX_VIRTEX) += uartlite.c
src-wlib-$(CONFIG_CPM) += cpm-serial.c
src-plat-y := of.c epapr.c
src-plat-$(CONFIG_40x) += fixed-head.S ep405.c cuboot-hotfoot.c \
treeboot-walnut.c cuboot-acadia.c \
cuboot-kilauea.c simpleboot.c \
virtex405-head.S virtex.c
src-plat-$(CONFIG_40x) += fixed-head.S cuboot-hotfoot.c \
cuboot-acadia.c \
cuboot-kilauea.c simpleboot.c
src-plat-$(CONFIG_44x) += treeboot-ebony.c cuboot-ebony.c treeboot-bamboo.c \
cuboot-bamboo.c cuboot-sam440ep.c \
cuboot-sequoia.c cuboot-rainier.c \
@ -144,7 +140,7 @@ src-plat-$(CONFIG_44x) += treeboot-ebony.c cuboot-ebony.c treeboot-bamboo.c \
cuboot-warp.c cuboot-yosemite.c \
treeboot-iss4xx.c treeboot-currituck.c \
treeboot-akebono.c \
simpleboot.c fixed-head.S virtex.c
simpleboot.c fixed-head.S
src-plat-$(CONFIG_PPC_8xx) += cuboot-8xx.c fixed-head.S ep88xc.c redboot-8xx.c
src-plat-$(CONFIG_PPC_MPC52xx) += cuboot-52xx.c
src-plat-$(CONFIG_PPC_82xx) += cuboot-pq2.c fixed-head.S ep8248e.c cuboot-824x.c
@ -279,9 +275,7 @@ image-$(CONFIG_EPAPR_BOOT) += zImage.epapr
#
# Board ports in arch/powerpc/platform/40x/Kconfig
image-$(CONFIG_EP405) += dtbImage.ep405
image-$(CONFIG_HOTFOOT) += cuImage.hotfoot
image-$(CONFIG_WALNUT) += treeImage.walnut
image-$(CONFIG_ACADIA) += cuImage.acadia
image-$(CONFIG_OBS600) += uImage.obs600

1
arch/powerpc/boot/dts/Makefile
View File

@ -4,4 +4,3 @@ subdir-y += fsl
dtstree := $(srctree)/$(src)
dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts))
dtb-$(CONFIG_XILINX_VIRTEX440_GENERIC_BOARD) += virtex440-ml507.dtb virtex440-ml510.dtb

230
arch/powerpc/boot/dts/ep405.dts
View File

@ -1,230 +0,0 @@
/*
* Device Tree Source for EP405
*
* Copyright 2007 IBM Corp.
* Benjamin Herrenschmidt <benh@kernel.crashing.org>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without
* any warranty of any kind, whether express or implied.
*/
/dts-v1/;
/ {
#address-cells = <1>;
#size-cells = <1>;
model = "ep405";
compatible = "ep405";
dcr-parent = <&{/cpus/cpu@0}>;
aliases {
ethernet0 = &EMAC;
serial0 = &UART0;
serial1 = &UART1;
};
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu@0 {
device_type = "cpu";
model = "PowerPC,405GP";
reg = <0x00000000>;
clock-frequency = <200000000>; /* Filled in by zImage */
timebase-frequency = <0>; /* Filled in by zImage */
i-cache-line-size = <32>;
d-cache-line-size = <32>;
i-cache-size = <16384>;
d-cache-size = <16384>;
dcr-controller;
dcr-access-method = "native";
};
};
memory {
device_type = "memory";
reg = <0x00000000 0x00000000>; /* Filled in by zImage */
};
UIC0: interrupt-controller {
compatible = "ibm,uic";
interrupt-controller;
cell-index = <0>;
dcr-reg = <0x0c0 0x009>;
#address-cells = <0>;
#size-cells = <0>;
#interrupt-cells = <2>;
};
plb {
compatible = "ibm,plb3";
#address-cells = <1>;
#size-cells = <1>;
ranges;
clock-frequency = <0>; /* Filled in by zImage */
SDRAM0: memory-controller {
compatible = "ibm,sdram-405gp";
dcr-reg = <0x010 0x002>;
};
MAL: mcmal {
compatible = "ibm,mcmal-405gp", "ibm,mcmal";
dcr-reg = <0x180 0x062>;
num-tx-chans = <1>;
num-rx-chans = <1>;
interrupt-parent = <&UIC0>;
interrupts = <
0xb 0x4 /* TXEOB */
0xc 0x4 /* RXEOB */
0xa 0x4 /* SERR */
0xd 0x4 /* TXDE */
0xe 0x4 /* RXDE */>;
};
POB0: opb {
compatible = "ibm,opb-405gp", "ibm,opb";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0xef600000 0xef600000 0x00a00000>;
dcr-reg = <0x0a0 0x005>;
clock-frequency = <0>; /* Filled in by zImage */
UART0: serial@ef600300 {
device_type = "serial";
compatible = "ns16550";
reg = <0xef600300 0x00000008>;
virtual-reg = <0xef600300>;
clock-frequency = <0>; /* Filled in by zImage */
current-speed = <9600>;
interrupt-parent = <&UIC0>;
interrupts = <0x0 0x4>;
};
UART1: serial@ef600400 {
device_type = "serial";
compatible = "ns16550";
reg = <0xef600400 0x00000008>;
virtual-reg = <0xef600400>;
clock-frequency = <0>; /* Filled in by zImage */
current-speed = <9600>;
interrupt-parent = <&UIC0>;
interrupts = <0x1 0x4>;
};
IIC: i2c@ef600500 {
compatible = "ibm,iic-405gp", "ibm,iic";
reg = <0xef600500 0x00000011>;
interrupt-parent = <&UIC0>;
interrupts = <0x2 0x4>;
};
GPIO: gpio@ef600700 {
compatible = "ibm,gpio-405gp";
reg = <0xef600700 0x00000020>;
};
EMAC: ethernet@ef600800 {
linux,network-index = <0x0>;
device_type = "network";
compatible = "ibm,emac-405gp", "ibm,emac";
interrupt-parent = <&UIC0>;
interrupts = <
0xf 0x4 /* Ethernet */
0x9 0x4 /* Ethernet Wake Up */>;
local-mac-address = [000000000000]; /* Filled in by zImage */
reg = <0xef600800 0x00000070>;
mal-device = <&MAL>;
mal-tx-channel = <0>;
mal-rx-channel = <0>;
cell-index = <0>;
max-frame-size = <1500>;
rx-fifo-size = <4096>;
tx-fifo-size = <2048>;
phy-mode = "rmii";
phy-map = <0x00000000>;
};
};
EBC0: ebc {
compatible = "ibm,ebc-405gp", "ibm,ebc";
dcr-reg = <0x012 0x002>;
#address-cells = <2>;
#size-cells = <1>;
/* The ranges property is supplied by the bootwrapper
* and is based on the firmware's configuration of the
* EBC bridge
*/
clock-frequency = <0>; /* Filled in by zImage */
/* NVRAM and RTC */
nvrtc@4,200000 {
compatible = "ds1742";
reg = <0x00000004 0x00200000 0x00000000>; /* size fixed up by zImage */
};
/* "BCSR" CPLD contains a PCI irq controller */
bcsr@4,0 {
compatible = "ep405-bcsr";
reg = <0x00000004 0x00000000 0x00000010>;
interrupt-controller;
/* Routing table */
irq-routing = [ 00 /* SYSERR */
01 /* STTM */
01 /* RTC */
01 /* FENET */
02 /* NB PCIIRQ mux ? */
03 /* SB Winbond 8259 ? */
04 /* Serial Ring */
05 /* USB (ep405pc) */
06 /* XIRQ 0 */
06 /* XIRQ 1 */
06 /* XIRQ 2 */
06 /* XIRQ 3 */
06 /* XIRQ 4 */
06 /* XIRQ 5 */
06 /* XIRQ 6 */
07]; /* Reserved */
};
};
PCI0: pci@ec000000 {
device_type = "pci";
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
compatible = "ibm,plb405gp-pci", "ibm,plb-pci";
primary;
reg = <0xeec00000 0x00000008 /* Config space access */
0xeed80000 0x00000004 /* IACK */
0xeed80000 0x00000004 /* Special cycle */
0xef480000 0x00000040>; /* Internal registers */
/* Outbound ranges, one memory and one IO,
* later cannot be changed. Chip supports a second
* IO range but we don't use it for now
*/
ranges = <0x02000000 0x00000000 0x80000000 0x80000000 0x00000000 0x20000000
0x01000000 0x00000000 0x00000000 0xe8000000 0x00000000 0x00010000>;
/* Inbound 2GB range starting at 0 */
dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x80000000>;
/* That's all I know about IRQs on that thing ... */
interrupt-map-mask = <0xf800 0x0 0x0 0x0>;
interrupt-map = <
/* USB */
0x7000 0x0 0x0 0x0 &UIC0 0x1e 0x8 /* IRQ5 */
>;
};
};
chosen {
stdout-path = "/plb/opb/serial@ef600300";
};
};

4
arch/powerpc/boot/dts/pcm032.dts
View File

@ -3,9 +3,7 @@
* phyCORE-MPC5200B-IO (pcm032) board Device Tree Source
*
* Copyright (C) 2006-2009 Pengutronix
* Sascha Hauer <s.hauer@pengutronix.de>
* Juergen Beisert <j.beisert@pengutronix.de>
* Wolfram Sang <w.sang@pengutronix.de>
* Sascha Hauer, Juergen Beisert, Wolfram Sang <kernel@pengutronix.de>
*/
/include/ "mpc5200b.dtsi"

406
arch/powerpc/boot/dts/virtex440-ml507.dts
View File

@ -1,406 +0,0 @@
/*
* This file supports the Xilinx ML507 board with the 440 processor.
* A reference design for the FPGA is provided at http://git.xilinx.com.
*
* (C) Copyright 2008 Xilinx, Inc.
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*
* ---
*
* Device Tree Generator version: 1.1
*
* CAUTION: This file is automatically generated by libgen.
* Version: Xilinx EDK 10.1.03 EDK_K_SP3.6
*
* XPS project directory: ml507_ppc440_emb_ref
*/
/dts-v1/;
/ {
#address-cells = <1>;
#size-cells = <1>;
compatible = "xlnx,virtex440";
dcr-parent = <&ppc440_0>;
model = "testing";
DDR2_SDRAM: memory@0 {
device_type = "memory";
reg = < 0 0x10000000 >;
} ;
chosen {
bootargs = "console=ttyS0 root=/dev/ram";
stdout-path = &RS232_Uart_1;
} ;
cpus {
#address-cells = <1>;
#cpus = <1>;
#size-cells = <0>;
ppc440_0: cpu@0 {
clock-frequency = <400000000>;
compatible = "PowerPC,440", "ibm,ppc440";
d-cache-line-size = <0x20>;
d-cache-size = <0x8000>;
dcr-access-method = "native";
dcr-controller ;
device_type = "cpu";
i-cache-line-size = <0x20>;
i-cache-size = <0x8000>;
model = "PowerPC,440";
reg = <0>;
timebase-frequency = <400000000>;
xlnx,apu-control = <1>;
xlnx,apu-udi-0 = <0>;
xlnx,apu-udi-1 = <0>;
xlnx,apu-udi-10 = <0>;
xlnx,apu-udi-11 = <0>;
xlnx,apu-udi-12 = <0>;
xlnx,apu-udi-13 = <0>;
xlnx,apu-udi-14 = <0>;
xlnx,apu-udi-15 = <0>;
xlnx,apu-udi-2 = <0>;
xlnx,apu-udi-3 = <0>;
xlnx,apu-udi-4 = <0>;
xlnx,apu-udi-5 = <0>;
xlnx,apu-udi-6 = <0>;
xlnx,apu-udi-7 = <0>;
xlnx,apu-udi-8 = <0>;
xlnx,apu-udi-9 = <0>;
xlnx,dcr-autolock-enable = <1>;
xlnx,dcu-rd-ld-cache-plb-prio = <0>;
xlnx,dcu-rd-noncache-plb-prio = <0>;
xlnx,dcu-rd-touch-plb-prio = <0>;
xlnx,dcu-rd-urgent-plb-prio = <0>;
xlnx,dcu-wr-flush-plb-prio = <0>;
xlnx,dcu-wr-store-plb-prio = <0>;
xlnx,dcu-wr-urgent-plb-prio = <0>;
xlnx,dma0-control = <0>;
xlnx,dma0-plb-prio = <0>;
xlnx,dma0-rxchannelctrl = <0x1010000>;
xlnx,dma0-rxirqtimer = <0x3ff>;
xlnx,dma0-txchannelctrl = <0x1010000>;
xlnx,dma0-txirqtimer = <0x3ff>;
xlnx,dma1-control = <0>;
xlnx,dma1-plb-prio = <0>;
xlnx,dma1-rxchannelctrl = <0x1010000>;
xlnx,dma1-rxirqtimer = <0x3ff>;
xlnx,dma1-txchannelctrl = <0x1010000>;
xlnx,dma1-txirqtimer = <0x3ff>;
xlnx,dma2-control = <0>;
xlnx,dma2-plb-prio = <0>;
xlnx,dma2-rxchannelctrl = <0x1010000>;
xlnx,dma2-rxirqtimer = <0x3ff>;
xlnx,dma2-txchannelctrl = <0x1010000>;
xlnx,dma2-txirqtimer = <0x3ff>;
xlnx,dma3-control = <0>;
xlnx,dma3-plb-prio = <0>;
xlnx,dma3-rxchannelctrl = <0x1010000>;
xlnx,dma3-rxirqtimer = <0x3ff>;
xlnx,dma3-txchannelctrl = <0x1010000>;
xlnx,dma3-txirqtimer = <0x3ff>;
xlnx,endian-reset = <0>;
xlnx,generate-plb-timespecs = <1>;
xlnx,icu-rd-fetch-plb-prio = <0>;
xlnx,icu-rd-spec-plb-prio = <0>;
xlnx,icu-rd-touch-plb-prio = <0>;
xlnx,interconnect-imask = <0xffffffff>;
xlnx,mplb-allow-lock-xfer = <1>;
xlnx,mplb-arb-mode = <0>;
xlnx,mplb-awidth = <0x20>;
xlnx,mplb-counter = <0x500>;
xlnx,mplb-dwidth = <0x80>;
xlnx,mplb-max-burst = <8>;
xlnx,mplb-native-dwidth = <0x80>;
xlnx,mplb-p2p = <0>;
xlnx,mplb-prio-dcur = <2>;
xlnx,mplb-prio-dcuw = <3>;
xlnx,mplb-prio-icu = <4>;
xlnx,mplb-prio-splb0 = <1>;
xlnx,mplb-prio-splb1 = <0>;
xlnx,mplb-read-pipe-enable = <1>;
xlnx,mplb-sync-tattribute = <0>;
xlnx,mplb-wdog-enable = <1>;
xlnx,mplb-write-pipe-enable = <1>;
xlnx,mplb-write-post-enable = <1>;
xlnx,num-dma = <1>;
xlnx,pir = <0xf>;
xlnx,ppc440mc-addr-base = <0>;
xlnx,ppc440mc-addr-high = <0xfffffff>;
xlnx,ppc440mc-arb-mode = <0>;
xlnx,ppc440mc-bank-conflict-mask = <0xc00000>;
xlnx,ppc440mc-control = <0xf810008f>;
xlnx,ppc440mc-max-burst = <8>;
xlnx,ppc440mc-prio-dcur = <2>;
xlnx,ppc440mc-prio-dcuw = <3>;
xlnx,ppc440mc-prio-icu = <4>;
xlnx,ppc440mc-prio-splb0 = <1>;
xlnx,ppc440mc-prio-splb1 = <0>;
xlnx,ppc440mc-row-conflict-mask = <0x3ffe00>;
xlnx,ppcdm-asyncmode = <0>;
xlnx,ppcds-asyncmode = <0>;
xlnx,user-reset = <0>;
DMA0: sdma@80 {
compatible = "xlnx,ll-dma-1.00.a";
dcr-reg = < 0x80 0x11 >;
interrupt-parent = <&xps_intc_0>;
interrupts = < 10 2 11 2 >;
} ;
} ;
} ;
plb_v46_0: plb@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "xlnx,plb-v46-1.03.a", "simple-bus";
ranges ;
DIP_Switches_8Bit: gpio@81460000 {
compatible = "xlnx,xps-gpio-1.00.a";
interrupt-parent = <&xps_intc_0>;
interrupts = < 7 2 >;
reg = < 0x81460000 0x10000 >;
xlnx,all-inputs = <1>;
xlnx,all-inputs-2 = <0>;
xlnx,dout-default = <0>;
xlnx,dout-default-2 = <0>;
xlnx,family = "virtex5";
xlnx,gpio-width = <8>;
xlnx,interrupt-present = <1>;
xlnx,is-bidir = <1>;
xlnx,is-bidir-2 = <1>;
xlnx,is-dual = <0>;
xlnx,tri-default = <0xffffffff>;
xlnx,tri-default-2 = <0xffffffff>;
} ;
FLASH: flash@fc000000 {
bank-width = <2>;
compatible = "xlnx,xps-mch-emc-2.00.a", "cfi-flash";
reg = < 0xfc000000 0x2000000 >;
xlnx,family = "virtex5";
xlnx,include-datawidth-matching-0 = <0x1>;
xlnx,include-datawidth-matching-1 = <0x0>;
xlnx,include-datawidth-matching-2 = <0x0>;
xlnx,include-datawidth-matching-3 = <0x0>;
xlnx,include-negedge-ioregs = <0x0>;
xlnx,include-plb-ipif = <0x1>;
xlnx,include-wrbuf = <0x1>;
xlnx,max-mem-width = <0x10>;
xlnx,mch-native-dwidth = <0x20>;
xlnx,mch-plb-clk-period-ps = <0x2710>;
xlnx,mch-splb-awidth = <0x20>;
xlnx,mch0-accessbuf-depth = <0x10>;
xlnx,mch0-protocol = <0x0>;
xlnx,mch0-rddatabuf-depth = <0x10>;
xlnx,mch1-accessbuf-depth = <0x10>;
xlnx,mch1-protocol = <0x0>;
xlnx,mch1-rddatabuf-depth = <0x10>;
xlnx,mch2-accessbuf-depth = <0x10>;
xlnx,mch2-protocol = <0x0>;
xlnx,mch2-rddatabuf-depth = <0x10>;
xlnx,mch3-accessbuf-depth = <0x10>;
xlnx,mch3-protocol = <0x0>;
xlnx,mch3-rddatabuf-depth = <0x10>;
xlnx,mem0-width = <0x10>;
xlnx,mem1-width = <0x20>;
xlnx,mem2-width = <0x20>;
xlnx,mem3-width = <0x20>;
xlnx,num-banks-mem = <0x1>;
xlnx,num-channels = <0x2>;
xlnx,priority-mode = <0x0>;
xlnx,synch-mem-0 = <0x0>;
xlnx,synch-mem-1 = <0x0>;
xlnx,synch-mem-2 = <0x0>;
xlnx,synch-mem-3 = <0x0>;
xlnx,synch-pipedelay-0 = <0x2>;
xlnx,synch-pipedelay-1 = <0x2>;
xlnx,synch-pipedelay-2 = <0x2>;
xlnx,synch-pipedelay-3 = <0x2>;
xlnx,tavdv-ps-mem-0 = <0x1adb0>;
xlnx,tavdv-ps-mem-1 = <0x3a98>;
xlnx,tavdv-ps-mem-2 = <0x3a98>;
xlnx,tavdv-ps-mem-3 = <0x3a98>;
xlnx,tcedv-ps-mem-0 = <0x1adb0>;
xlnx,tcedv-ps-mem-1 = <0x3a98>;
xlnx,tcedv-ps-mem-2 = <0x3a98>;
xlnx,tcedv-ps-mem-3 = <0x3a98>;
xlnx,thzce-ps-mem-0 = <0x88b8>;
xlnx,thzce-ps-mem-1 = <0x1b58>;
xlnx,thzce-ps-mem-2 = <0x1b58>;
xlnx,thzce-ps-mem-3 = <0x1b58>;
xlnx,thzoe-ps-mem-0 = <0x1b58>;
xlnx,thzoe-ps-mem-1 = <0x1b58>;
xlnx,thzoe-ps-mem-2 = <0x1b58>;
xlnx,thzoe-ps-mem-3 = <0x1b58>;
xlnx,tlzwe-ps-mem-0 = <0x88b8>;
xlnx,tlzwe-ps-mem-1 = <0x0>;
xlnx,tlzwe-ps-mem-2 = <0x0>;
xlnx,tlzwe-ps-mem-3 = <0x0>;
xlnx,twc-ps-mem-0 = <0x2af8>;
xlnx,twc-ps-mem-1 = <0x3a98>;
xlnx,twc-ps-mem-2 = <0x3a98>;
xlnx,twc-ps-mem-3 = <0x3a98>;
xlnx,twp-ps-mem-0 = <0x11170>;
xlnx,twp-ps-mem-1 = <0x2ee0>;
xlnx,twp-ps-mem-2 = <0x2ee0>;
xlnx,twp-ps-mem-3 = <0x2ee0>;
xlnx,xcl0-linesize = <0x4>;
xlnx,xcl0-writexfer = <0x1>;
xlnx,xcl1-linesize = <0x4>;
xlnx,xcl1-writexfer = <0x1>;
xlnx,xcl2-linesize = <0x4>;
xlnx,xcl2-writexfer = <0x1>;
xlnx,xcl3-linesize = <0x4>;
xlnx,xcl3-writexfer = <0x1>;
} ;
Hard_Ethernet_MAC: xps-ll-temac@81c00000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "xlnx,compound";
ethernet@81c00000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "xlnx,xps-ll-temac-1.01.b";
device_type = "network";
interrupt-parent = <&xps_intc_0>;
interrupts = < 5 2 >;
llink-connected = <&DMA0>;
local-mac-address = [ 02 00 00 00 00 00 ];
reg = < 0x81c00000 0x40 >;
xlnx,bus2core-clk-ratio = <1>;
xlnx,phy-type = <1>;
xlnx,phyaddr = <1>;
xlnx,rxcsum = <1>;
xlnx,rxfifo = <0x1000>;
xlnx,temac-type = <0>;
xlnx,txcsum = <1>;
xlnx,txfifo = <0x1000>;
phy-handle = <&phy7>;
clock-frequency = <100000000>;
phy7: phy@7 {
compatible = "marvell,88e1111";
reg = <7>;
} ;
} ;
} ;
IIC_EEPROM: i2c@81600000 {
compatible = "xlnx,xps-iic-2.00.a";
interrupt-parent = <&xps_intc_0>;
interrupts = < 6 2 >;
reg = < 0x81600000 0x10000 >;
xlnx,clk-freq = <0x5f5e100>;
xlnx,family = "virtex5";
xlnx,gpo-width = <0x1>;
xlnx,iic-freq = <0x186a0>;
xlnx,scl-inertial-delay = <0x0>;
xlnx,sda-inertial-delay = <0x0>;
xlnx,ten-bit-adr = <0x0>;
} ;
LEDs_8Bit: gpio@81400000 {
compatible = "xlnx,xps-gpio-1.00.a";
reg = < 0x81400000 0x10000 >;
xlnx,all-inputs = <0>;
xlnx,all-inputs-2 = <0>;
xlnx,dout-default = <0>;
xlnx,dout-default-2 = <0>;
xlnx,family = "virtex5";
xlnx,gpio-width = <8>;
xlnx,interrupt-present = <0>;
xlnx,is-bidir = <1>;
xlnx,is-bidir-2 = <1>;
xlnx,is-dual = <0>;
xlnx,tri-default = <0xffffffff>;
xlnx,tri-default-2 = <0xffffffff>;
} ;
LEDs_Positions: gpio@81420000 {
compatible = "xlnx,xps-gpio-1.00.a";
reg = < 0x81420000 0x10000 >;
xlnx,all-inputs = <0>;
xlnx,all-inputs-2 = <0>;
xlnx,dout-default = <0>;
xlnx,dout-default-2 = <0>;
xlnx,family = "virtex5";
xlnx,gpio-width = <5>;
xlnx,interrupt-present = <0>;
xlnx,is-bidir = <1>;
xlnx,is-bidir-2 = <1>;
xlnx,is-dual = <0>;
xlnx,tri-default = <0xffffffff>;
xlnx,tri-default-2 = <0xffffffff>;
} ;
Push_Buttons_5Bit: gpio@81440000 {
compatible = "xlnx,xps-gpio-1.00.a";
interrupt-parent = <&xps_intc_0>;
interrupts = < 8 2 >;
reg = < 0x81440000 0x10000 >;
xlnx,all-inputs = <1>;
xlnx,all-inputs-2 = <0>;
xlnx,dout-default = <0>;
xlnx,dout-default-2 = <0>;
xlnx,family = "virtex5";
xlnx,gpio-width = <5>;
xlnx,interrupt-present = <1>;
xlnx,is-bidir = <1>;
xlnx,is-bidir-2 = <1>;
xlnx,is-dual = <0>;
xlnx,tri-default = <0xffffffff>;
xlnx,tri-default-2 = <0xffffffff>;
} ;
RS232_Uart_1: serial@83e00000 {
clock-frequency = <100000000>;
compatible = "xlnx,xps-uart16550-2.00.b", "ns16550";
current-speed = <9600>;
device_type = "serial";
interrupt-parent = <&xps_intc_0>;
interrupts = < 9 2 >;
reg = < 0x83e00000 0x10000 >;
reg-offset = <0x1003>;
reg-shift = <2>;
xlnx,family = "virtex5";
xlnx,has-external-rclk = <0>;
xlnx,has-external-xin = <0>;
xlnx,is-a-16550 = <1>;
} ;
SysACE_CompactFlash: sysace@83600000 {
compatible = "xlnx,xps-sysace-1.00.a";
interrupt-parent = <&xps_intc_0>;
interrupts = < 4 2 >;
reg = < 0x83600000 0x10000 >;
xlnx,family = "virtex5";
xlnx,mem-width = <0x10>;
} ;
xps_bram_if_cntlr_1: xps-bram-if-cntlr@ffff0000 {
compatible = "xlnx,xps-bram-if-cntlr-1.00.a";
reg = < 0xffff0000 0x10000 >;
xlnx,family = "virtex5";
} ;
xps_intc_0: interrupt-controller@81800000 {
#interrupt-cells = <2>;
compatible = "xlnx,xps-intc-1.00.a";
interrupt-controller ;
reg = < 0x81800000 0x10000 >;
xlnx,num-intr-inputs = <0xc>;
} ;
xps_timebase_wdt_1: xps-timebase-wdt@83a00000 {
compatible = "xlnx,xps-timebase-wdt-1.00.b";
interrupt-parent = <&xps_intc_0>;
interrupts = < 2 0 1 2 >;
reg = < 0x83a00000 0x10000 >;
xlnx,family = "virtex5";
xlnx,wdt-enable-once = <0>;
xlnx,wdt-interval = <0x1e>;
} ;
xps_timer_1: timer@83c00000 {
compatible = "xlnx,xps-timer-1.00.a";
interrupt-parent = <&xps_intc_0>;
interrupts = < 3 2 >;
reg = < 0x83c00000 0x10000 >;
xlnx,count-width = <0x20>;
xlnx,family = "virtex5";
xlnx,gen0-assert = <1>;
xlnx,gen1-assert = <1>;
xlnx,one-timer-only = <1>;
xlnx,trig0-assert = <1>;
xlnx,trig1-assert = <1>;
} ;
} ;
} ;

466
arch/powerpc/boot/dts/virtex440-ml510.dts
View File

@ -1,466 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Xilinx ML510 Reference Design support
*
* This DTS file was created for the ml510_bsb1_pcores_ppc440 reference design.
* The reference design contains a bug which prevent PCI DMA from working
* properly. A description of the bug is given in the plbv46_pci section. It
* needs to be fixed by the user until Xilinx updates their reference design.
*
* Copyright 2009, Roderick Colenbrander
*/
/dts-v1/;
/ {
#address-cells = <1>;
#size-cells = <1>;
compatible = "xlnx,ml510-ref-design", "xlnx,virtex440";
dcr-parent = <&ppc440_0>;
DDR2_SDRAM_DIMM0: memory@0 {
device_type = "memory";
reg = < 0x0 0x20000000 >;
} ;
alias {
ethernet0 = &Hard_Ethernet_MAC;
serial0 = &RS232_Uart_1;
} ;
chosen {
bootargs = "console=ttyS0 root=/dev/ram";
stdout-path = "/plb@0/serial@83e00000";
} ;
cpus {
#address-cells = <1>;
#cpus = <0x1>;
#size-cells = <0>;
ppc440_0: cpu@0 {
#address-cells = <1>;
#size-cells = <1>;
clock-frequency = <300000000>;
compatible = "PowerPC,440", "ibm,ppc440";
d-cache-line-size = <0x20>;
d-cache-size = <0x8000>;
dcr-access-method = "native";
dcr-controller ;
device_type = "cpu";
i-cache-line-size = <0x20>;
i-cache-size = <0x8000>;
model = "PowerPC,440";
reg = <0>;
timebase-frequency = <300000000>;
xlnx,apu-control = <0x2000>;
xlnx,apu-udi-0 = <0x0>;
xlnx,apu-udi-1 = <0x0>;
xlnx,apu-udi-10 = <0x0>;
xlnx,apu-udi-11 = <0x0>;
xlnx,apu-udi-12 = <0x0>;
xlnx,apu-udi-13 = <0x0>;
xlnx,apu-udi-14 = <0x0>;
xlnx,apu-udi-15 = <0x0>;
xlnx,apu-udi-2 = <0x0>;
xlnx,apu-udi-3 = <0x0>;
xlnx,apu-udi-4 = <0x0>;
xlnx,apu-udi-5 = <0x0>;
xlnx,apu-udi-6 = <0x0>;
xlnx,apu-udi-7 = <0x0>;
xlnx,apu-udi-8 = <0x0>;
xlnx,apu-udi-9 = <0x0>;
xlnx,dcr-autolock-enable = <0x1>;
xlnx,dcu-rd-ld-cache-plb-prio = <0x0>;
xlnx,dcu-rd-noncache-plb-prio = <0x0>;
xlnx,dcu-rd-touch-plb-prio = <0x0>;
xlnx,dcu-rd-urgent-plb-prio = <0x0>;
xlnx,dcu-wr-flush-plb-prio = <0x0>;
xlnx,dcu-wr-store-plb-prio = <0x0>;
xlnx,dcu-wr-urgent-plb-prio = <0x0>;
xlnx,dma0-control = <0x0>;
xlnx,dma0-plb-prio = <0x0>;
xlnx,dma0-rxchannelctrl = <0x1010000>;
xlnx,dma0-rxirqtimer = <0x3ff>;
xlnx,dma0-txchannelctrl = <0x1010000>;
xlnx,dma0-txirqtimer = <0x3ff>;
xlnx,dma1-control = <0x0>;
xlnx,dma1-plb-prio = <0x0>;
xlnx,dma1-rxchannelctrl = <0x1010000>;
xlnx,dma1-rxirqtimer = <0x3ff>;
xlnx,dma1-txchannelctrl = <0x1010000>;
xlnx,dma1-txirqtimer = <0x3ff>;
xlnx,dma2-control = <0x0>;
xlnx,dma2-plb-prio = <0x0>;
xlnx,dma2-rxchannelctrl = <0x1010000>;
xlnx,dma2-rxirqtimer = <0x3ff>;
xlnx,dma2-txchannelctrl = <0x1010000>;
xlnx,dma2-txirqtimer = <0x3ff>;
xlnx,dma3-control = <0x0>;
xlnx,dma3-plb-prio = <0x0>;
xlnx,dma3-rxchannelctrl = <0x1010000>;
xlnx,dma3-rxirqtimer = <0x3ff>;
xlnx,dma3-txchannelctrl = <0x1010000>;
xlnx,dma3-txirqtimer = <0x3ff>;
xlnx,endian-reset = <0x0>;
xlnx,generate-plb-timespecs = <0x1>;
xlnx,icu-rd-fetch-plb-prio = <0x0>;
xlnx,icu-rd-spec-plb-prio = <0x0>;
xlnx,icu-rd-touch-plb-prio = <0x0>;
xlnx,interconnect-imask = <0xffffffff>;
xlnx,mplb-allow-lock-xfer = <0x1>;
xlnx,mplb-arb-mode = <0x0>;
xlnx,mplb-awidth = <0x20>;
xlnx,mplb-counter = <0x500>;
xlnx,mplb-dwidth = <0x80>;
xlnx,mplb-max-burst = <0x8>;
xlnx,mplb-native-dwidth = <0x80>;
xlnx,mplb-p2p = <0x0>;
xlnx,mplb-prio-dcur = <0x2>;
xlnx,mplb-prio-dcuw = <0x3>;
xlnx,mplb-prio-icu = <0x4>;
xlnx,mplb-prio-splb0 = <0x1>;
xlnx,mplb-prio-splb1 = <0x0>;
xlnx,mplb-read-pipe-enable = <0x1>;
xlnx,mplb-sync-tattribute = <0x0>;
xlnx,mplb-wdog-enable = <0x1>;
xlnx,mplb-write-pipe-enable = <0x1>;
xlnx,mplb-write-post-enable = <0x1>;
xlnx,num-dma = <0x0>;
xlnx,pir = <0xf>;
xlnx,ppc440mc-addr-base = <0x0>;
xlnx,ppc440mc-addr-high = <0x1fffffff>;
xlnx,ppc440mc-arb-mode = <0x0>;
xlnx,ppc440mc-bank-conflict-mask = <0x1800000>;
xlnx,ppc440mc-control = <0xf810008f>;
xlnx,ppc440mc-max-burst = <0x8>;
xlnx,ppc440mc-prio-dcur = <0x2>;
xlnx,ppc440mc-prio-dcuw = <0x3>;
xlnx,ppc440mc-prio-icu = <0x4>;
xlnx,ppc440mc-prio-splb0 = <0x1>;
xlnx,ppc440mc-prio-splb1 = <0x0>;
xlnx,ppc440mc-row-conflict-mask = <0x7ffe00>;
xlnx,ppcdm-asyncmode = <0x0>;
xlnx,ppcds-asyncmode = <0x0>;
xlnx,user-reset = <0x0>;
} ;
} ;
plb_v46_0: plb@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "xlnx,plb-v46-1.03.a", "simple-bus";
ranges ;
FLASH: flash@fc000000 {
bank-width = <2>;
compatible = "xlnx,xps-mch-emc-2.00.a", "cfi-flash";
reg = < 0xfc000000 0x2000000 >;
xlnx,family = "virtex5";
xlnx,include-datawidth-matching-0 = <0x1>;
xlnx,include-datawidth-matching-1 = <0x0>;
xlnx,include-datawidth-matching-2 = <0x0>;
xlnx,include-datawidth-matching-3 = <0x0>;
xlnx,include-negedge-ioregs = <0x0>;
xlnx,include-plb-ipif = <0x1>;
xlnx,include-wrbuf = <0x1>;
xlnx,max-mem-width = <0x10>;
xlnx,mch-native-dwidth = <0x20>;
xlnx,mch-plb-clk-period-ps = <0x2710>;
xlnx,mch-splb-awidth = <0x20>;
xlnx,mch0-accessbuf-depth = <0x10>;
xlnx,mch0-protocol = <0x0>;
xlnx,mch0-rddatabuf-depth = <0x10>;
xlnx,mch1-accessbuf-depth = <0x10>;
xlnx,mch1-protocol = <0x0>;
xlnx,mch1-rddatabuf-depth = <0x10>;
xlnx,mch2-accessbuf-depth = <0x10>;
xlnx,mch2-protocol = <0x0>;
xlnx,mch2-rddatabuf-depth = <0x10>;
xlnx,mch3-accessbuf-depth = <0x10>;
xlnx,mch3-protocol = <0x0>;
xlnx,mch3-rddatabuf-depth = <0x10>;
xlnx,mem0-width = <0x10>;
xlnx,mem1-width = <0x20>;
xlnx,mem2-width = <0x20>;
xlnx,mem3-width = <0x20>;
xlnx,num-banks-mem = <0x1>;
xlnx,num-channels = <0x2>;
xlnx,priority-mode = <0x0>;
xlnx,synch-mem-0 = <0x0>;
xlnx,synch-mem-1 = <0x0>;
xlnx,synch-mem-2 = <0x0>;
xlnx,synch-mem-3 = <0x0>;
xlnx,synch-pipedelay-0 = <0x2>;
xlnx,synch-pipedelay-1 = <0x2>;
xlnx,synch-pipedelay-2 = <0x2>;
xlnx,synch-pipedelay-3 = <0x2>;
xlnx,tavdv-ps-mem-0 = <0x1adb0>;
xlnx,tavdv-ps-mem-1 = <0x3a98>;
xlnx,tavdv-ps-mem-2 = <0x3a98>;
xlnx,tavdv-ps-mem-3 = <0x3a98>;
xlnx,tcedv-ps-mem-0 = <0x1adb0>;
xlnx,tcedv-ps-mem-1 = <0x3a98>;
xlnx,tcedv-ps-mem-2 = <0x3a98>;
xlnx,tcedv-ps-mem-3 = <0x3a98>;
xlnx,thzce-ps-mem-0 = <0x88b8>;
xlnx,thzce-ps-mem-1 = <0x1b58>;
xlnx,thzce-ps-mem-2 = <0x1b58>;
xlnx,thzce-ps-mem-3 = <0x1b58>;
xlnx,thzoe-ps-mem-0 = <0x1b58>;
xlnx,thzoe-ps-mem-1 = <0x1b58>;
xlnx,thzoe-ps-mem-2 = <0x1b58>;
xlnx,thzoe-ps-mem-3 = <0x1b58>;
xlnx,tlzwe-ps-mem-0 = <0x88b8>;
xlnx,tlzwe-ps-mem-1 = <0x0>;
xlnx,tlzwe-ps-mem-2 = <0x0>;
xlnx,tlzwe-ps-mem-3 = <0x0>;
xlnx,twc-ps-mem-0 = <0x1adb0>;
xlnx,twc-ps-mem-1 = <0x3a98>;
xlnx,twc-ps-mem-2 = <0x3a98>;
xlnx,twc-ps-mem-3 = <0x3a98>;
xlnx,twp-ps-mem-0 = <0x11170>;
xlnx,twp-ps-mem-1 = <0x2ee0>;
xlnx,twp-ps-mem-2 = <0x2ee0>;
xlnx,twp-ps-mem-3 = <0x2ee0>;
xlnx,xcl0-linesize = <0x4>;
xlnx,xcl0-writexfer = <0x1>;
xlnx,xcl1-linesize = <0x4>;
xlnx,xcl1-writexfer = <0x1>;
xlnx,xcl2-linesize = <0x4>;
xlnx,xcl2-writexfer = <0x1>;
xlnx,xcl3-linesize = <0x4>;
xlnx,xcl3-writexfer = <0x1>;
} ;
Hard_Ethernet_MAC: xps-ll-temac@81c00000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "xlnx,compound";
ethernet@81c00000 {
compatible = "xlnx,xps-ll-temac-1.01.b";
device_type = "network";
interrupt-parent = <&xps_intc_0>;
interrupts = < 8 2 >;
llink-connected = <&Hard_Ethernet_MAC_fifo>;
local-mac-address = [ 02 00 00 00 00 00 ];
reg = < 0x81c00000 0x40 >;
xlnx,bus2core-clk-ratio = <0x1>;
xlnx,phy-type = <0x3>;
xlnx,phyaddr = <0x1>;
xlnx,rxcsum = <0x0>;
xlnx,rxfifo = <0x8000>;
xlnx,temac-type = <0x0>;
xlnx,txcsum = <0x0>;
xlnx,txfifo = <0x8000>;
} ;
} ;
Hard_Ethernet_MAC_fifo: xps-ll-fifo@81a00000 {
compatible = "xlnx,xps-ll-fifo-1.01.a";
interrupt-parent = <&xps_intc_0>;
interrupts = < 6 2 >;
reg = < 0x81a00000 0x10000 >;
xlnx,family = "virtex5";
} ;
IIC_EEPROM: i2c@81600000 {
compatible = "xlnx,xps-iic-2.00.a";
interrupt-parent = <&xps_intc_0>;
interrupts = < 9 2 >;
reg = < 0x81600000 0x10000 >;
xlnx,clk-freq = <0x5f5e100>;
xlnx,family = "virtex5";
xlnx,gpo-width = <0x1>;
xlnx,iic-freq = <0x186a0>;
xlnx,scl-inertial-delay = <0x5>;
xlnx,sda-inertial-delay = <0x5>;
xlnx,ten-bit-adr = <0x0>;
} ;
LCD_OPTIONAL: gpio@81420000 {
compatible = "xlnx,xps-gpio-1.00.a";
reg = < 0x81420000 0x10000 >;
xlnx,all-inputs = <0x0>;
xlnx,all-inputs-2 = <0x0>;
xlnx,dout-default = <0x0>;
xlnx,dout-default-2 = <0x0>;
xlnx,family = "virtex5";
xlnx,gpio-width = <0xb>;
xlnx,interrupt-present = <0x0>;
xlnx,is-bidir = <0x1>;
xlnx,is-bidir-2 = <0x1>;
xlnx,is-dual = <0x0>;
xlnx,tri-default = <0xffffffff>;
xlnx,tri-default-2 = <0xffffffff>;
} ;
LEDs_4Bit: gpio@81400000 {
compatible = "xlnx,xps-gpio-1.00.a";
reg = < 0x81400000 0x10000 >;
xlnx,all-inputs = <0x0>;
xlnx,all-inputs-2 = <0x0>;
xlnx,dout-default = <0x0>;
xlnx,dout-default-2 = <0x0>;
xlnx,family = "virtex5";
xlnx,gpio-width = <0x4>;
xlnx,interrupt-present = <0x0>;
xlnx,is-bidir = <0x1>;
xlnx,is-bidir-2 = <0x1>;
xlnx,is-dual = <0x0>;
xlnx,tri-default = <0xffffffff>;
xlnx,tri-default-2 = <0xffffffff>;
} ;
RS232_Uart_1: serial@83e00000 {
clock-frequency = <100000000>;
compatible = "xlnx,xps-uart16550-2.00.b", "ns16550";
current-speed = <9600>;
device_type = "serial";
interrupt-parent = <&xps_intc_0>;
interrupts = < 11 2 >;
reg = < 0x83e00000 0x10000 >;
reg-offset = <0x1003>;
reg-shift = <2>;
xlnx,family = "virtex5";
xlnx,has-external-rclk = <0x0>;
xlnx,has-external-xin = <0x0>;
xlnx,is-a-16550 = <0x1>;
} ;
SPI_EEPROM: xps-spi@feff8000 {
compatible = "xlnx,xps-spi-2.00.b";
interrupt-parent = <&xps_intc_0>;
interrupts = < 10 2 >;
reg = < 0xfeff8000 0x80 >;
xlnx,family = "virtex5";
xlnx,fifo-exist = <0x1>;
xlnx,num-ss-bits = <0x1>;
xlnx,num-transfer-bits = <0x8>;
xlnx,sck-ratio = <0x80>;
} ;
SysACE_CompactFlash: sysace@83600000 {
compatible = "xlnx,xps-sysace-1.00.a";
interrupt-parent = <&xps_intc_0>;
interrupts = < 7 2 >;
reg = < 0x83600000 0x10000 >;
xlnx,family = "virtex5";
xlnx,mem-width = <0x10>;
} ;
plbv46_pci_0: plbv46-pci@85e00000 {
#size-cells = <2>;
#address-cells = <3>;
compatible = "xlnx,plbv46-pci-1.03.a";
device_type = "pci";
reg = < 0x85e00000 0x10000 >;
/*
* The default ML510 BSB has C_IPIFBAR2PCIBAR_0 set to
* 0 which means that a read/write to the memory mapped
* i/o region (which starts at 0xa0000000) for pci
* bar 0 on the plb side translates to 0.
* It is important to set this value to 0xa0000000, so
* that inbound and outbound pci transactions work
* properly including DMA.
*/
ranges = <0x02000000 0 0xa0000000 0xa0000000 0 0x20000000
0x01000000 0 0x00000000 0xf0000000 0 0x00010000>;
#interrupt-cells = <1>;
interrupt-parent = <&xps_intc_0>;
interrupt-map-mask = <0xff00 0x0 0x0 0x7>;
interrupt-map = <
/* IRQ mapping for pci slots and ALI M1533
* periperhals. In total there are 5 interrupt
* lines connected to a xps_intc controller.
* Four of them are PCI IRQ A, B, C, D and
* which correspond to respectively xpx_intc
* 5, 4, 3 and 2. The fifth interrupt line is
* connected to the south bridge and this one
* uses irq 1 and is active high instead of
* active low.
*
* The M1533 contains various peripherals
* including AC97 audio, a modem, USB, IDE and
* some power management stuff. The modem
* isn't connected on the ML510 and the power
* management core also isn't used.
*/
/* IDSEL 0x16 / dev=6, bus=0 / PCI slot 3 */
0x3000 0 0 1 &xps_intc_0 3 2
0x3000 0 0 2 &xps_intc_0 2 2
0x3000 0 0 3 &xps_intc_0 5 2
0x3000 0 0 4 &xps_intc_0 4 2
/* IDSEL 0x13 / dev=3, bus=1 / PCI slot 4 */
/*
0x11800 0 0 1 &xps_intc_0 5 0 2
0x11800 0 0 2 &xps_intc_0 4 0 2
0x11800 0 0 3 &xps_intc_0 3 0 2
0x11800 0 0 4 &xps_intc_0 2 0 2
*/
/* According to the datasheet + schematic
* ABCD [FPGA] of slot 5 is mapped to DABC.
* Testing showed that at least A maps to B,
* the mapping of the other pins is a guess
* and for that reason the lines have been
* commented out.
*/
/* IDSEL 0x15 / dev=5, bus=0 / PCI slot 5 */
0x2800 0 0 1 &xps_intc_0 4 2
/*
0x2800 0 0 2 &xps_intc_0 3 2
0x2800 0 0 3 &xps_intc_0 2 2
0x2800 0 0 4 &xps_intc_0 5 2
*/
/* IDSEL 0x12 / dev=2, bus=1 / PCI slot 6 */
/*
0x11000 0 0 1 &xps_intc_0 4 0 2
0x11000 0 0 2 &xps_intc_0 3 0 2
0x11000 0 0 3 &xps_intc_0 2 0 2
0x11000 0 0 4 &xps_intc_0 5 0 2
*/
/* IDSEL 0x11 / dev=1, bus=0 / AC97 audio */
0x0800 0 0 1 &i8259 7 2
/* IDSEL 0x1b / dev=11, bus=0 / IDE */
0x5800 0 0 1 &i8259 14 2
/* IDSEL 0x1f / dev 15, bus=0 / 2x USB 1.1 */
0x7800 0 0 1 &i8259 7 2
>;
ali_m1533 {
#size-cells = <1>;
#address-cells = <2>;
i8259: interrupt-controller@20 {
reg = <1 0x20 2
1 0xa0 2
1 0x4d0 2>;
interrupt-controller;
device_type = "interrupt-controller";
#address-cells = <0>;
#interrupt-cells = <2>;
compatible = "chrp,iic";
/* south bridge irq is active high */
interrupts = <1 3>;
interrupt-parent = <&xps_intc_0>;
};
};
} ;
xps_bram_if_cntlr_1: xps-bram-if-cntlr@ffff0000 {
compatible = "xlnx,xps-bram-if-cntlr-1.00.a";
reg = < 0xffff0000 0x10000 >;
xlnx,family = "virtex5";
} ;
xps_intc_0: interrupt-controller@81800000 {
#interrupt-cells = <0x2>;
compatible = "xlnx,xps-intc-1.00.a";
interrupt-controller ;
reg = < 0x81800000 0x10000 >;
xlnx,num-intr-inputs = <0xc>;
} ;
xps_tft_0: tft@86e00000 {
compatible = "xlnx,xps-tft-1.00.a";
reg = < 0x86e00000 0x10000 >;
xlnx,dcr-splb-slave-if = <0x1>;
xlnx,default-tft-base-addr = <0x0>;
xlnx,family = "virtex5";
xlnx,i2c-slave-addr = <0x76>;
xlnx,mplb-awidth = <0x20>;
xlnx,mplb-dwidth = <0x80>;
xlnx,mplb-native-dwidth = <0x40>;
xlnx,mplb-smallest-slave = <0x20>;
xlnx,tft-interface = <0x1>;
} ;
} ;
} ;

246
arch/powerpc/boot/dts/walnut.dts
View File

@ -1,246 +0,0 @@
/*
* Device Tree Source for IBM Walnut
*
* Copyright 2007 IBM Corp.
* Josh Boyer <jwboyer@linux.vnet.ibm.com>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without
* any warranty of any kind, whether express or implied.
*/
/dts-v1/;
/ {
#address-cells = <1>;
#size-cells = <1>;
model = "ibm,walnut";
compatible = "ibm,walnut";
dcr-parent = <&{/cpus/cpu@0}>;
aliases {
ethernet0 = &EMAC;
serial0 = &UART0;
serial1 = &UART1;
};
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu@0 {
device_type = "cpu";
model = "PowerPC,405GP";
reg = <0x00000000>;
clock-frequency = <200000000>; /* Filled in by zImage */
timebase-frequency = <0>; /* Filled in by zImage */
i-cache-line-size = <32>;
d-cache-line-size = <32>;
i-cache-size = <16384>;
d-cache-size = <16384>;
dcr-controller;
dcr-access-method = "native";
};
};
memory {
device_type = "memory";
reg = <0x00000000 0x00000000>; /* Filled in by zImage */
};
UIC0: interrupt-controller {
compatible = "ibm,uic";
interrupt-controller;
cell-index = <0>;
dcr-reg = <0x0c0 0x009>;
#address-cells = <0>;
#size-cells = <0>;
#interrupt-cells = <2>;
};
plb {
compatible = "ibm,plb3";
#address-cells = <1>;
#size-cells = <1>;
ranges;
clock-frequency = <0>; /* Filled in by zImage */
SDRAM0: memory-controller {
compatible = "ibm,sdram-405gp";
dcr-reg = <0x010 0x002>;
};
MAL: mcmal {
compatible = "ibm,mcmal-405gp", "ibm,mcmal";
dcr-reg = <0x180 0x062>;
num-tx-chans = <1>;
num-rx-chans = <1>;
interrupt-parent = <&UIC0>;
interrupts = <
0xb 0x4 /* TXEOB */
0xc 0x4 /* RXEOB */
0xa 0x4 /* SERR */
0xd 0x4 /* TXDE */
0xe 0x4 /* RXDE */>;
};
POB0: opb {
compatible = "ibm,opb-405gp", "ibm,opb";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0xef600000 0xef600000 0x00a00000>;
dcr-reg = <0x0a0 0x005>;
clock-frequency = <0>; /* Filled in by zImage */
UART0: serial@ef600300 {
device_type = "serial";
compatible = "ns16550";
reg = <0xef600300 0x00000008>;
virtual-reg = <0xef600300>;
clock-frequency = <0>; /* Filled in by zImage */
current-speed = <9600>;
interrupt-parent = <&UIC0>;
interrupts = <0x0 0x4>;
};
UART1: serial@ef600400 {
device_type = "serial";
compatible = "ns16550";
reg = <0xef600400 0x00000008>;
virtual-reg = <0xef600400>;
clock-frequency = <0>; /* Filled in by zImage */
current-speed = <9600>;
interrupt-parent = <&UIC0>;
interrupts = <0x1 0x4>;
};
IIC: i2c@ef600500 {
compatible = "ibm,iic-405gp", "ibm,iic";
reg = <0xef600500 0x00000011>;
interrupt-parent = <&UIC0>;
interrupts = <0x2 0x4>;
};
GPIO: gpio@ef600700 {
compatible = "ibm,gpio-405gp";
reg = <0xef600700 0x00000020>;
};
EMAC: ethernet@ef600800 {
device_type = "network";
compatible = "ibm,emac-405gp", "ibm,emac";
interrupt-parent = <&UIC0>;
interrupts = <
0xf 0x4 /* Ethernet */
0x9 0x4 /* Ethernet Wake Up */>;
local-mac-address = [000000000000]; /* Filled in by zImage */
reg = <0xef600800 0x00000070>;
mal-device = <&MAL>;
mal-tx-channel = <0>;
mal-rx-channel = <0>;
cell-index = <0>;
max-frame-size = <1500>;
rx-fifo-size = <4096>;
tx-fifo-size = <2048>;
phy-mode = "rmii";
phy-map = <0x00000001>;
};
};
EBC0: ebc {
compatible = "ibm,ebc-405gp", "ibm,ebc";
dcr-reg = <0x012 0x002>;
#address-cells = <2>;
#size-cells = <1>;
/* The ranges property is supplied by the bootwrapper
* and is based on the firmware's configuration of the
* EBC bridge
*/
clock-frequency = <0>; /* Filled in by zImage */
sram@0,0 {
reg = <0x00000000 0x00000000 0x00080000>;
};
flash@0,80000 {
compatible = "jedec-flash";
bank-width = <1>;
reg = <0x00000000 0x00080000 0x00080000>;
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "OpenBIOS";
reg = <0x00000000 0x00080000>;
read-only;
};
};
nvram@1,0 {
/* NVRAM and RTC */
compatible = "ds1743-nvram";
#bytes = <0x2000>;
reg = <0x00000001 0x00000000 0x00002000>;
};
keyboard@2,0 {
compatible = "intel,82C42PC";
reg = <0x00000002 0x00000000 0x00000002>;
};
ir@3,0 {
compatible = "ti,TIR2000PAG";
reg = <0x00000003 0x00000000 0x00000010>;
};
fpga@7,0 {
compatible = "Walnut-FPGA";
reg = <0x00000007 0x00000000 0x00000010>;
virtual-reg = <0xf0300005>;
};
};
PCI0: pci@ec000000 {
device_type = "pci";
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
compatible = "ibm,plb405gp-pci", "ibm,plb-pci";
primary;
reg = <0xeec00000 0x00000008 /* Config space access */
0xeed80000 0x00000004 /* IACK */
0xeed80000 0x00000004 /* Special cycle */
0xef480000 0x00000040>; /* Internal registers */
/* Outbound ranges, one memory and one IO,
* later cannot be changed. Chip supports a second
* IO range but we don't use it for now
*/
ranges = <0x02000000 0x00000000 0x80000000 0x80000000 0x00000000 0x20000000
0x01000000 0x00000000 0x00000000 0xe8000000 0x00000000 0x00010000>;
/* Inbound 2GB range starting at 0 */
dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x80000000>;
/* Walnut has all 4 IRQ pins tied together per slot */
interrupt-map-mask = <0xf800 0x0 0x0 0x0>;
interrupt-map = <
/* IDSEL 1 */
0x800 0x0 0x0 0x0 &UIC0 0x1c 0x8
/* IDSEL 2 */
0x1000 0x0 0x0 0x0 &UIC0 0x1d 0x8
/* IDSEL 3 */
0x1800 0x0 0x0 0x0 &UIC0 0x1e 0x8
/* IDSEL 4 */
0x2000 0x0 0x0 0x0 &UIC0 0x1f 0x8
>;
};
};
chosen {
stdout-path = "/plb/opb/serial@ef600300";
};
};

71
arch/powerpc/boot/ep405.c
View File

@ -1,71 +0,0 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Embedded Planet EP405 with PlanetCore firmware
*
* (c) Benjamin Herrenschmidt <benh@kernel.crashing.org>, IBM Corp,\
*
* Based on ep88xc.c by
*
* Scott Wood <scottwood@freescale.com>
*
* Copyright (c) 2007 Freescale Semiconductor, Inc.
*/
#include "ops.h"
#include "stdio.h"
#include "planetcore.h"
#include "dcr.h"
#include "4xx.h"
#include "io.h"
static char *table;
static u64 mem_size;
static void platform_fixups(void)
{
u64 val;
void *nvrtc;
dt_fixup_memory(0, mem_size);
planetcore_set_mac_addrs(table);
if (!planetcore_get_decimal(table, PLANETCORE_KEY_CRYSTAL_HZ, &val)) {
printf("No PlanetCore crystal frequency key.\r\n");
return;
}
ibm405gp_fixup_clocks(val, 0xa8c000);
ibm4xx_quiesce_eth((u32 *)0xef600800, NULL);
ibm4xx_fixup_ebc_ranges("/plb/ebc");
if (!planetcore_get_decimal(table, PLANETCORE_KEY_KB_NVRAM, &val)) {
printf("No PlanetCore NVRAM size key.\r\n");
return;
}
nvrtc = finddevice("/plb/ebc/nvrtc@4,200000");
if (nvrtc != NULL) {
u32 reg[3] = { 4, 0x200000, 0};
getprop(nvrtc, "reg", reg, 3);
reg[2] = (val << 10) & 0xffffffff;
setprop(nvrtc, "reg", reg, 3);
}
}
void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7)
{
table = (char *)r3;
planetcore_prepare_table(table);
if (!planetcore_get_decimal(table, PLANETCORE_KEY_MB_RAM, &mem_size))
return;
mem_size *= 1024 * 1024;
simple_alloc_init(_end, mem_size - (unsigned long)_end, 32, 64);
fdt_init(_dtb_start);
planetcore_set_stdout_path(table);
serial_console_init();
platform_ops.fixups = platform_fixups;
}

1
arch/powerpc/boot/ops.h
View File

@ -88,7 +88,6 @@ int serial_console_init(void);
int ns16550_console_init(void *devp, struct serial_console_data *scdp);
int cpm_console_init(void *devp, struct serial_console_data *scdp);
int mpc5200_psc_console_init(void *devp, struct serial_console_data *scdp);
int uartlite_console_init(void *devp, struct serial_console_data *scdp);
int opal_console_init(void *devp, struct serial_console_data *scdp);
void *simple_alloc_init(char *base, unsigned long heap_size,
unsigned long granularity, unsigned long max_allocs);

5
arch/powerpc/boot/serial.c
View File

@ -132,11 +132,6 @@ int serial_console_init(void)
else if (dt_is_compatible(devp, "fsl,mpc5200-psc-uart"))
rc = mpc5200_psc_console_init(devp, &serial_cd);
#endif
#ifdef CONFIG_XILINX_VIRTEX
else if (dt_is_compatible(devp, "xlnx,opb-uartlite-1.00.b") ||
dt_is_compatible(devp, "xlnx,xps-uartlite-1.00.a"))
rc = uartlite_console_init(devp, &serial_cd);
#endif
#ifdef CONFIG_PPC64_BOOT_WRAPPER
else if (dt_is_compatible(devp, "ibm,opal-console-raw"))
rc = opal_console_init(devp, &serial_cd);

81
arch/powerpc/boot/treeboot-walnut.c
View File

@ -1,81 +0,0 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Old U-boot compatibility for Walnut
*
* Author: Josh Boyer <jwboyer@linux.vnet.ibm.com>
*
* Copyright 2007 IBM Corporation
* Based on cuboot-83xx.c, which is:
* Copyright (c) 2007 Freescale Semiconductor, Inc.
*/
#include "ops.h"
#include "stdio.h"
#include "dcr.h"
#include "4xx.h"
#include "io.h"
BSS_STACK(4096);
static void walnut_flashsel_fixup(void)
{
void *devp, *sram;
u32 reg_flash[3] = {0x0, 0x0, 0x80000};
u32 reg_sram[3] = {0x0, 0x0, 0x80000};
u8 *fpga;
u8 fpga_brds1 = 0x0;
devp = finddevice("/plb/ebc/fpga");
if (!devp)
fatal("Couldn't locate FPGA node\n\r");
if (getprop(devp, "virtual-reg", &fpga, sizeof(fpga)) != sizeof(fpga))
fatal("no virtual-reg property\n\r");
fpga_brds1 = in_8(fpga);
devp = finddevice("/plb/ebc/flash");
if (!devp)
fatal("Couldn't locate flash node\n\r");
if (getprop(devp, "reg", reg_flash, sizeof(reg_flash)) != sizeof(reg_flash))
fatal("flash reg property has unexpected size\n\r");
sram = finddevice("/plb/ebc/sram");
if (!sram)
fatal("Couldn't locate sram node\n\r");
if (getprop(sram, "reg", reg_sram, sizeof(reg_sram)) != sizeof(reg_sram))
fatal("sram reg property has unexpected size\n\r");
if (fpga_brds1 & 0x1) {
reg_flash[1] ^= 0x80000;
reg_sram[1] ^= 0x80000;
}
setprop(devp, "reg", reg_flash, sizeof(reg_flash));
setprop(sram, "reg", reg_sram, sizeof(reg_sram));
}
#define WALNUT_OPENBIOS_MAC_OFF 0xfffffe0b
static void walnut_fixups(void)
{
ibm4xx_sdram_fixup_memsize();
ibm405gp_fixup_clocks(33330000, 0xa8c000);
ibm4xx_quiesce_eth((u32 *)0xef600800, NULL);
ibm4xx_fixup_ebc_ranges("/plb/ebc");
walnut_flashsel_fixup();
dt_fixup_mac_address_by_alias("ethernet0", (u8 *) WALNUT_OPENBIOS_MAC_OFF);
}
void platform_init(void)
{
unsigned long end_of_ram = 0x2000000;
unsigned long avail_ram = end_of_ram - (unsigned long) _end;
simple_alloc_init(_end, avail_ram, 32, 32);
platform_ops.fixups = walnut_fixups;
platform_ops.exit = ibm40x_dbcr_reset;
fdt_init(_dtb_start);
serial_console_init();
}

79
arch/powerpc/boot/uartlite.c
View File

@ -1,79 +0,0 @@
/*
* Xilinx UARTLITE bootloader driver
*
* Copyright (C) 2007 Secret Lab Technologies Ltd.
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#include <stdarg.h>
#include <stddef.h>
#include "types.h"
#include "string.h"
#include "stdio.h"
#include "io.h"
#include "ops.h"
#define ULITE_RX 0x00
#define ULITE_TX 0x04
#define ULITE_STATUS 0x08
#define ULITE_CONTROL 0x0c
#define ULITE_STATUS_RXVALID 0x01
#define ULITE_STATUS_TXFULL 0x08
#define ULITE_CONTROL_RST_RX 0x02
static void * reg_base;
static int uartlite_open(void)
{
/* Clear the RX FIFO */
out_be32(reg_base + ULITE_CONTROL, ULITE_CONTROL_RST_RX);
return 0;
}
static void uartlite_putc(unsigned char c)
{
u32 reg = ULITE_STATUS_TXFULL;
while (reg & ULITE_STATUS_TXFULL) /* spin on TXFULL bit */
reg = in_be32(reg_base + ULITE_STATUS);
out_be32(reg_base + ULITE_TX, c);
}
static unsigned char uartlite_getc(void)
{
u32 reg = 0;
while (!(reg & ULITE_STATUS_RXVALID)) /* spin waiting for RXVALID bit */
reg = in_be32(reg_base + ULITE_STATUS);
return in_be32(reg_base + ULITE_RX);
}
static u8 uartlite_tstc(void)
{
u32 reg = in_be32(reg_base + ULITE_STATUS);
return reg & ULITE_STATUS_RXVALID;
}
int uartlite_console_init(void *devp, struct serial_console_data *scdp)
{
int n;
unsigned long reg_phys;
n = getprop(devp, "virtual-reg", &reg_base, sizeof(reg_base));
if (n != sizeof(reg_base)) {
if (!dt_xlate_reg(devp, 0, &reg_phys, NULL))
return -1;
reg_base = (void *)reg_phys;
}
scdp->open = uartlite_open;
scdp->putc = uartlite_putc;
scdp->getc = uartlite_getc;
scdp->tstc = uartlite_tstc;
scdp->close = NULL;
return 0;
}

97
arch/powerpc/boot/virtex.c
View File

@ -1,97 +0,0 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* The platform specific code for virtex devices since a boot loader is not
* always used.
*
* (C) Copyright 2008 Xilinx, Inc.
*/
#include "ops.h"
#include "io.h"
#include "stdio.h"
#define UART_DLL 0 /* Out: Divisor Latch Low */
#define UART_DLM 1 /* Out: Divisor Latch High */
#define UART_FCR 2 /* Out: FIFO Control Register */
#define UART_FCR_CLEAR_RCVR 0x02 /* Clear the RCVR FIFO */
#define UART_FCR_CLEAR_XMIT 0x04 /* Clear the XMIT FIFO */
#define UART_LCR 3 /* Out: Line Control Register */
#define UART_MCR 4 /* Out: Modem Control Register */
#define UART_MCR_RTS 0x02 /* RTS complement */
#define UART_MCR_DTR 0x01 /* DTR complement */
#define UART_LCR_DLAB 0x80 /* Divisor latch access bit */
#define UART_LCR_WLEN8 0x03 /* Wordlength: 8 bits */
static int virtex_ns16550_console_init(void *devp)
{
unsigned char *reg_base;
u32 reg_shift, reg_offset, clk, spd;
u16 divisor;
int n;
if (dt_get_virtual_reg(devp, (void **)&reg_base, 1) < 1)
return -1;
n = getprop(devp, "reg-offset", &reg_offset, sizeof(reg_offset));
if (n == sizeof(reg_offset))
reg_base += reg_offset;
n = getprop(devp, "reg-shift", &reg_shift, sizeof(reg_shift));
if (n != sizeof(reg_shift))
reg_shift = 0;
n = getprop(devp, "current-speed", (void *)&spd, sizeof(spd));
if (n != sizeof(spd))
spd = 9600;
/* should there be a default clock rate?*/
n = getprop(devp, "clock-frequency", (void *)&clk, sizeof(clk));
if (n != sizeof(clk))
return -1;
divisor = clk / (16 * spd);
/* Access baud rate */
out_8(reg_base + (UART_LCR << reg_shift), UART_LCR_DLAB);
/* Baud rate based on input clock */
out_8(reg_base + (UART_DLL << reg_shift), divisor & 0xFF);
out_8(reg_base + (UART_DLM << reg_shift), divisor >> 8);
/* 8 data, 1 stop, no parity */
out_8(reg_base + (UART_LCR << reg_shift), UART_LCR_WLEN8);
/* RTS/DTR */
out_8(reg_base + (UART_MCR << reg_shift), UART_MCR_RTS | UART_MCR_DTR);
/* Clear transmitter and receiver */
out_8(reg_base + (UART_FCR << reg_shift),
UART_FCR_CLEAR_XMIT | UART_FCR_CLEAR_RCVR);
return 0;
}
/* For virtex, the kernel may be loaded without using a bootloader and if so
some UARTs need more setup than is provided in the normal console init
*/
int platform_specific_init(void)
{
void *devp;
char devtype[MAX_PROP_LEN];
char path[MAX_PATH_LEN];
devp = finddevice("/chosen");
if (devp == NULL)
return -1;
if (getprop(devp, "linux,stdout-path", path, MAX_PATH_LEN) > 0) {
devp = finddevice(path);
if (devp == NULL)
return -1;
if ((getprop(devp, "device_type", devtype, sizeof(devtype)) > 0)
&& !strcmp(devtype, "serial")
&& (dt_is_compatible(devp, "ns16550")))
virtex_ns16550_console_init(devp);
}
return 0;
}

31
arch/powerpc/boot/virtex405-head.S
View File

@ -1,31 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#include "ppc_asm.h"
.text
.global _zimage_start
_zimage_start:
/* PPC errata 213: needed by Virtex-4 FX */
mfccr0 0
oris 0,0,0x50000000@h
mtccr0 0
/*
* Invalidate the data cache if the data cache is turned off.
* - The 405 core does not invalidate the data cache on power-up
* or reset but does turn off the data cache. We cannot assume
* that the cache contents are valid.
* - If the data cache is turned on this must have been done by
* a bootloader and we assume that the cache contents are
* valid.
*/
mfdccr r9
cmplwi r9,0
bne 2f
lis r9,0
li r8,256
mtctr r8
1: dccci r0,r9
addi r9,r9,0x20
bdnz 1b
2: b _zimage_start_lib

26
arch/powerpc/boot/wrapper
View File

@ -29,6 +29,7 @@ set -e
# Allow for verbose output
if [ "$V" = 1 ]; then
set -x
map="-Map wrapper.map"
fi
# defaults
@ -323,14 +324,6 @@ adder875-redboot)
platformo="$object/fixed-head.o $object/redboot-8xx.o"
binary=y
;;
simpleboot-virtex405-*)
platformo="$object/virtex405-head.o $object/simpleboot.o $object/virtex.o"
binary=y
;;
simpleboot-virtex440-*)
platformo="$object/fixed-head.o $object/simpleboot.o $object/virtex.o"
binary=y
;;
simpleboot-*)
platformo="$object/fixed-head.o $object/simpleboot.o"
binary=y
@ -500,7 +493,7 @@ if [ "$platform" != "miboot" ]; then
text_start="-Ttext $link_address"
fi
#link everything
${CROSS}ld -m $format -T $lds $text_start $pie $nodl -o "$ofile" \
${CROSS}ld -m $format -T $lds $text_start $pie $nodl -o "$ofile" $map \
$platformo $tmp $object/wrapper.a
rm $tmp
fi
@ -570,7 +563,18 @@ ps3)
count=$overlay_size bs=1
odir="$(dirname "$ofile.bin")"
rm -f "$odir/otheros.bld"
gzip -n --force -9 --stdout "$ofile.bin" > "$odir/otheros.bld"
# The ps3's flash loader has a size limit of 16 MiB for the uncompressed
# image. If a compressed image that exceeded this limit is written to
# flash the loader will decompress that image until the 16 MiB limit is
# reached, then enter the system reset vector of the partially decompressed
# image. No warning is issued.
rm -f "$odir"/{otheros,otheros-too-big}.bld
size=$(${CROSS}nm --no-sort --radix=d "$ofile" | egrep ' _end$' | cut -d' ' -f1)
bld="otheros.bld"
if [ $size -gt $((0x1000000)) ]; then
bld="otheros-too-big.bld"
fi
gzip -n --force -9 --stdout "$ofile.bin" > "$odir/$bld"
;;
esac

1
arch/powerpc/configs/40x/acadia_defconfig
View File

@ -9,7 +9,6 @@ CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_ACADIA=y
# CONFIG_WALNUT is not set
CONFIG_PCI=y
CONFIG_NET=y
CONFIG_PACKET=y

62
arch/powerpc/configs/40x/ep405_defconfig
View File

@ -1,62 +0,0 @@
CONFIG_40x=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
CONFIG_EXPERT=y
CONFIG_KALLSYMS_ALL=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_EP405=y
# CONFIG_WALNUT is not set
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IPV6 is not set
CONFIG_CONNECTOR=y
CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_BLOCK=m
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_PHYSMAP_OF=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=35000
CONFIG_NETDEVICES=y
CONFIG_IBM_EMAC=y
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
CONFIG_THERMAL=y
CONFIG_USB=y
CONFIG_USB_MON=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PPC_OF_BE=y
CONFIG_USB_OHCI_HCD_PPC_OF_LE=y
CONFIG_EXT2_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_CRAMFS=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
CONFIG_DEBUG_FS=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y

1
arch/powerpc/configs/40x/kilauea_defconfig
View File

@ -11,7 +11,6 @@ CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_KILAUEA=y
# CONFIG_WALNUT is not set
CONFIG_PCI=y
CONFIG_NET=y
CONFIG_PACKET=y

1
arch/powerpc/configs/40x/klondike_defconfig
View File

@ -8,7 +8,6 @@ CONFIG_EMBEDDED=y
CONFIG_SLAB=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_WALNUT is not set
CONFIG_APM8018X=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
CONFIG_MATH_EMULATION=y

1
arch/powerpc/configs/40x/makalu_defconfig
View File

@ -9,7 +9,6 @@ CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_MAKALU=y
# CONFIG_WALNUT is not set
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y

1
arch/powerpc/configs/40x/obs600_defconfig
View File

@ -10,7 +10,6 @@ CONFIG_KALLSYMS_ALL=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_WALNUT is not set
CONFIG_OBS600=y
CONFIG_MATH_EMULATION=y
CONFIG_NET=y

75
arch/powerpc/configs/40x/virtex_defconfig
View File

@ -1,75 +0,0 @@
CONFIG_40x=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
CONFIG_SLAB=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODVERSIONS=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_WALNUT is not set
CONFIG_XILINX_VIRTEX_GENERIC_BOARD=y
CONFIG_PREEMPT=y
CONFIG_MATH_EMULATION=y
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE=""
CONFIG_PCI=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_NETFILTER=y
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_MANGLE=m
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=8192
CONFIG_XILINX_SYSACE=y
CONFIG_NETDEVICES=y
# CONFIG_SERIO_SERPORT is not set
CONFIG_SERIO_XILINX_XPS_PS2=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_UARTLITE=y
CONFIG_SERIAL_UARTLITE_CONSOLE=y
CONFIG_XILINX_HWICAP=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_XILINX=y
# CONFIG_HWMON is not set
CONFIG_FB=y
CONFIG_FB_XILINX=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
# CONFIG_USB_SUPPORT is not set
CONFIG_EXT2_FS=y
CONFIG_AUTOFS4_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
CONFIG_CRAMFS=y
CONFIG_ROMFS_FS=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_UTF8=m
CONFIG_CRC_CCITT=y
CONFIG_FONTS=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_KERNEL=y

74
arch/powerpc/configs/44x/virtex5_defconfig
View File

@ -1,74 +0,0 @@
CONFIG_44x=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
CONFIG_SLAB=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODVERSIONS=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_EBONY is not set
CONFIG_XILINX_VIRTEX440_GENERIC_BOARD=y
CONFIG_PREEMPT=y
CONFIG_MATH_EMULATION=y
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE=""
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_NETFILTER=y
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_MANGLE=m
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=8192
CONFIG_XILINX_SYSACE=y
CONFIG_NETDEVICES=y
# CONFIG_SERIO_SERPORT is not set
CONFIG_SERIO_XILINX_XPS_PS2=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_UARTLITE=y
CONFIG_SERIAL_UARTLITE_CONSOLE=y
CONFIG_XILINX_HWICAP=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_XILINX=y
# CONFIG_HWMON is not set
CONFIG_FB=y
CONFIG_FB_XILINX=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
# CONFIG_USB_SUPPORT is not set
CONFIG_EXT2_FS=y
CONFIG_AUTOFS4_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
CONFIG_CRAMFS=y
CONFIG_ROMFS_FS=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_UTF8=m
CONFIG_CRC_CCITT=y
CONFIG_FONTS=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_KERNEL=y

1
arch/powerpc/configs/adder875_defconfig
View File

@ -10,7 +10,6 @@ CONFIG_EXPERT=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_PARTITION_ADVANCED=y
CONFIG_PPC_ADDER875=y
CONFIG_8xx_COPYBACK=y
CONFIG_GEN_RTC=y
CONFIG_HZ_1000=y
# CONFIG_SECCOMP is not set

1
arch/powerpc/configs/ep88xc_defconfig
View File

@ -12,7 +12,6 @@ CONFIG_EXPERT=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_PARTITION_ADVANCED=y
CONFIG_PPC_EP88XC=y
CONFIG_8xx_COPYBACK=y
CONFIG_GEN_RTC=y
CONFIG_HZ_100=y
# CONFIG_SECCOMP is not set

1
arch/powerpc/configs/mpc866_ads_defconfig
View File

@ -12,7 +12,6 @@ CONFIG_EXPERT=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_PARTITION_ADVANCED=y
CONFIG_MPC86XADS=y
CONFIG_8xx_COPYBACK=y
CONFIG_GEN_RTC=y
CONFIG_HZ_1000=y
CONFIG_MATH_EMULATION=y

1
arch/powerpc/configs/mpc885_ads_defconfig
View File

@ -11,7 +11,6 @@ CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_BLK_DEV_BSG is not set
CONFIG_PARTITION_ADVANCED=y
CONFIG_8xx_COPYBACK=y
CONFIG_GEN_RTC=y
CONFIG_HZ_100=y
# CONFIG_SECCOMP is not set

1
arch/powerpc/configs/powernv_defconfig
View File

@ -347,3 +347,4 @@ CONFIG_KVM_BOOK3S_64=m
CONFIG_KVM_BOOK3S_64_HV=m
CONFIG_VHOST_NET=m
CONFIG_PRINTK_TIME=y
CONFIG_PRINTK_CALLER=y

9
arch/powerpc/configs/ppc40x_defconfig
View File

@ -10,11 +10,9 @@ CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_PPC4xx_GPIO=y
CONFIG_ACADIA=y
CONFIG_EP405=y
CONFIG_HOTFOOT=y
CONFIG_KILAUEA=y
CONFIG_MAKALU=y
CONFIG_XILINX_VIRTEX_GENERIC_BOARD=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
@ -37,33 +35,26 @@ CONFIG_MTD_UBI=m
CONFIG_MTD_UBI_GLUEBI=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=35000
CONFIG_XILINX_SYSACE=m
CONFIG_NETDEVICES=y
CONFIG_IBM_EMAC=y
# CONFIG_INPUT is not set
CONFIG_SERIO=m
# CONFIG_SERIO_I8042 is not set
# CONFIG_SERIO_SERPORT is not set
CONFIG_SERIO_XILINX_XPS_PS2=m
# CONFIG_VT is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_UARTLITE=y
CONFIG_SERIAL_UARTLITE_CONSOLE=y
# CONFIG_HW_RANDOM is not set
CONFIG_XILINX_HWICAP=m
CONFIG_I2C=m
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_GPIO=m
CONFIG_I2C_IBM_IIC=m
CONFIG_GPIO_XILINX=y
# CONFIG_HWMON is not set
CONFIG_THERMAL=y
CONFIG_FB=m
CONFIG_FB_XILINX=m
CONFIG_EXT2_FS=y
CONFIG_EXT4_FS=m
CONFIG_VFAT_FS=m

8
arch/powerpc/configs/ppc44x_defconfig
View File

@ -22,7 +22,6 @@ CONFIG_GLACIER=y
CONFIG_REDWOOD=y
CONFIG_EIGER=y
CONFIG_YOSEMITE=y
CONFIG_XILINX_VIRTEX440_GENERIC_BOARD=y
CONFIG_PPC4xx_GPIO=y
CONFIG_MATH_EMULATION=y
CONFIG_NET=y
@ -46,7 +45,6 @@ CONFIG_MTD_UBI=m
CONFIG_MTD_UBI_GLUEBI=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=35000
CONFIG_XILINX_SYSACE=m
CONFIG_SCSI=m
CONFIG_BLK_DEV_SD=m
# CONFIG_SCSI_LOWLEVEL is not set
@ -57,7 +55,6 @@ CONFIG_IBM_EMAC=y
CONFIG_SERIO=m
# CONFIG_SERIO_I8042 is not set
# CONFIG_SERIO_SERPORT is not set
CONFIG_SERIO_XILINX_XPS_PS2=m
# CONFIG_VT is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
@ -65,18 +62,13 @@ CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_UARTLITE=y
CONFIG_SERIAL_UARTLITE_CONSOLE=y
# CONFIG_HW_RANDOM is not set
CONFIG_XILINX_HWICAP=m
CONFIG_I2C=m
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_GPIO=m
CONFIG_I2C_IBM_IIC=m
CONFIG_GPIO_XILINX=y
# CONFIG_HWMON is not set
CONFIG_FB=m
CONFIG_FB_XILINX=m
CONFIG_USB=m
CONFIG_USB_EHCI_HCD=m
CONFIG_USB_OHCI_HCD=m

2
arch/powerpc/configs/ppc64_defconfig
View File

@ -281,6 +281,7 @@ CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_DS1307=y
CONFIG_VIRTIO_PCI=m
CONFIG_VIRTIO_BALLOON=m
CONFIG_LIBNVDIMM=y
CONFIG_RAS=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
@ -358,6 +359,7 @@ CONFIG_CRYPTO_DEV_NX=y
CONFIG_CRYPTO_DEV_NX_ENCRYPT=m
CONFIG_CRYPTO_DEV_VMX=y
CONFIG_PRINTK_TIME=y
CONFIG_PRINTK_CALLER=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_STACK_USAGE=y

1
arch/powerpc/configs/pseries_defconfig
View File

@ -322,3 +322,4 @@ CONFIG_KVM_BOOK3S_64=m
CONFIG_KVM_BOOK3S_64_HV=m
CONFIG_VHOST_NET=m
CONFIG_PRINTK_TIME=y
CONFIG_PRINTK_CALLER=y

1
arch/powerpc/configs/tqm8xx_defconfig
View File

@ -15,7 +15,6 @@ CONFIG_MODULE_SRCVERSION_ALL=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_PARTITION_ADVANCED=y
CONFIG_TQM8XX=y
CONFIG_8xx_COPYBACK=y
# CONFIG_8xx_CPU15 is not set
CONFIG_GEN_RTC=y
CONFIG_HZ_100=y

19
arch/powerpc/include/asm/asm-405.h
View File

@ -1,19 +0,0 @@
#ifndef _ASM_POWERPC_ASM_405_H
#define _ASM_POWERPC_ASM_405_H
#include <asm/asm-const.h>
#ifdef __KERNEL__
#ifdef CONFIG_IBM405_ERR77
/* Erratum #77 on the 405 means we need a sync or dcbt before every
* stwcx. The old ATOMIC_SYNC_FIX covered some but not all of this.
*/
#define PPC405_ERR77(ra,rb) stringify_in_c(dcbt ra, rb;)
#define PPC405_ERR77_SYNC stringify_in_c(sync;)
#else
#define PPC405_ERR77(ra,rb)
#define PPC405_ERR77_SYNC
#endif
#endif
#endif /* _ASM_POWERPC_ASM_405_H */

11
arch/powerpc/include/asm/atomic.h
View File

@ -10,7 +10,6 @@
#include <linux/types.h>
#include <asm/cmpxchg.h>
#include <asm/barrier.h>
#include <asm/asm-405.h>
#define ATOMIC_INIT(i) { (i) }
@ -47,7 +46,6 @@ static __inline__ void atomic_##op(int a, atomic_t *v) \
__asm__ __volatile__( \
"1: lwarx %0,0,%3 # atomic_" #op "\n" \
#asm_op " %0,%2,%0\n" \
PPC405_ERR77(0,%3) \
" stwcx. %0,0,%3 \n" \
" bne- 1b\n" \
: "=&r" (t), "+m" (v->counter) \
@ -63,7 +61,6 @@ static inline int atomic_##op##_return_relaxed(int a, atomic_t *v) \
__asm__ __volatile__( \
"1: lwarx %0,0,%3 # atomic_" #op "_return_relaxed\n" \
#asm_op " %0,%2,%0\n" \
PPC405_ERR77(0, %3) \
" stwcx. %0,0,%3\n" \
" bne- 1b\n" \
: "=&r" (t), "+m" (v->counter) \
@ -81,7 +78,6 @@ static inline int atomic_fetch_##op##_relaxed(int a, atomic_t *v) \
__asm__ __volatile__( \
"1: lwarx %0,0,%4 # atomic_fetch_" #op "_relaxed\n" \
#asm_op " %1,%3,%0\n" \
PPC405_ERR77(0, %4) \
" stwcx. %1,0,%4\n" \
" bne- 1b\n" \
: "=&r" (res), "=&r" (t), "+m" (v->counter) \
@ -130,7 +126,6 @@ static __inline__ void atomic_inc(atomic_t *v)
__asm__ __volatile__(
"1: lwarx %0,0,%2 # atomic_inc\n\
addic %0,%0,1\n"
PPC405_ERR77(0,%2)
" stwcx. %0,0,%2 \n\
bne- 1b"
: "=&r" (t), "+m" (v->counter)
@ -146,7 +141,6 @@ static __inline__ int atomic_inc_return_relaxed(atomic_t *v)
__asm__ __volatile__(
"1: lwarx %0,0,%2 # atomic_inc_return_relaxed\n"
" addic %0,%0,1\n"
PPC405_ERR77(0, %2)
" stwcx. %0,0,%2\n"
" bne- 1b"
: "=&r" (t), "+m" (v->counter)
@ -163,7 +157,6 @@ static __inline__ void atomic_dec(atomic_t *v)
__asm__ __volatile__(
"1: lwarx %0,0,%2 # atomic_dec\n\
addic %0,%0,-1\n"
PPC405_ERR77(0,%2)\
" stwcx. %0,0,%2\n\
bne- 1b"
: "=&r" (t), "+m" (v->counter)
@ -179,7 +172,6 @@ static __inline__ int atomic_dec_return_relaxed(atomic_t *v)
__asm__ __volatile__(
"1: lwarx %0,0,%2 # atomic_dec_return_relaxed\n"
" addic %0,%0,-1\n"
PPC405_ERR77(0, %2)
" stwcx. %0,0,%2\n"
" bne- 1b"
: "=&r" (t), "+m" (v->counter)
@ -220,7 +212,6 @@ static __inline__ int atomic_fetch_add_unless(atomic_t *v, int a, int u)
cmpw 0,%0,%3 \n\
beq 2f \n\
add %0,%2,%0 \n"
PPC405_ERR77(0,%2)
" stwcx. %0,0,%1 \n\
bne- 1b \n"
PPC_ATOMIC_EXIT_BARRIER
@ -251,7 +242,6 @@ static __inline__ int atomic_inc_not_zero(atomic_t *v)
cmpwi 0,%0,0\n\
beq- 2f\n\
addic %1,%0,1\n"
PPC405_ERR77(0,%2)
" stwcx. %1,0,%2\n\
bne- 1b\n"
PPC_ATOMIC_EXIT_BARRIER
@ -280,7 +270,6 @@ static __inline__ int atomic_dec_if_positive(atomic_t *v)
cmpwi %0,1\n\
addi %0,%0,-1\n\
blt- 2f\n"
PPC405_ERR77(0,%1)
" stwcx. %0,0,%1\n\
bne- 1b"
PPC_ATOMIC_EXIT_BARRIER

4
arch/powerpc/include/asm/bitops.h
View File

@ -41,7 +41,6 @@
#include <linux/compiler.h>
#include <asm/asm-compat.h>
#include <asm/synch.h>
#include <asm/asm-405.h>
/* PPC bit number conversion */
#define PPC_BITLSHIFT(be) (BITS_PER_LONG - 1 - (be))
@ -73,7 +72,6 @@ static inline void fn(unsigned long mask, \
prefix \
"1:" PPC_LLARX(%0,0,%3,0) "\n" \
stringify_in_c(op) "%0,%0,%2\n" \
PPC405_ERR77(0,%3) \
PPC_STLCX "%0,0,%3\n" \
"bne- 1b\n" \
: "=&r" (old), "+m" (*p) \
@ -119,7 +117,6 @@ static inline unsigned long fn( \
prefix \
"1:" PPC_LLARX(%0,0,%3,eh) "\n" \
stringify_in_c(op) "%1,%0,%2\n" \
PPC405_ERR77(0,%3) \
PPC_STLCX "%1,0,%3\n" \
"bne- 1b\n" \
postfix \
@ -175,7 +172,6 @@ clear_bit_unlock_return_word(int nr, volatile unsigned long *addr)
PPC_RELEASE_BARRIER
"1:" PPC_LLARX(%0,0,%3,0) "\n"
"andc %1,%0,%2\n"
PPC405_ERR77(0,%3)
PPC_STLCX "%1,0,%3\n"
"bne- 1b\n"
: "=&r" (old), "=&r" (t)

7
arch/powerpc/include/asm/book3s/32/kup.h
View File

@ -2,6 +2,7 @@
#ifndef _ASM_POWERPC_BOOK3S_32_KUP_H
#define _ASM_POWERPC_BOOK3S_32_KUP_H
#include <asm/bug.h>
#include <asm/book3s/32/mmu-hash.h>
#ifdef __ASSEMBLY__
@ -75,7 +76,7 @@
.macro kuap_check current, gpr
#ifdef CONFIG_PPC_KUAP_DEBUG
lwz \gpr, KUAP(thread)
lwz \gpr, THREAD + KUAP(\current)
999: twnei \gpr, 0
EMIT_BUG_ENTRY 999b, __FILE__, __LINE__, (BUGFLAG_WARNING | BUGFLAG_ONCE)
#endif
@ -108,7 +109,7 @@ static __always_inline void allow_user_access(void __user *to, const void __user
u32 addr, end;
BUILD_BUG_ON(!__builtin_constant_p(dir));
BUILD_BUG_ON(dir == KUAP_CURRENT);
BUILD_BUG_ON(dir & ~KUAP_READ_WRITE);
if (!(dir & KUAP_WRITE))
return;
@ -131,7 +132,7 @@ static __always_inline void prevent_user_access(void __user *to, const void __us
BUILD_BUG_ON(!__builtin_constant_p(dir));
if (dir == KUAP_CURRENT) {
if (dir & KUAP_CURRENT_WRITE) {
u32 kuap = current->thread.kuap;
if (unlikely(!kuap))

82
arch/powerpc/include/asm/book3s/32/pgtable.h
View File

@ -187,14 +187,14 @@ int map_kernel_page(unsigned long va, phys_addr_t pa, pgprot_t prot);
* memory shall not share segments.
*/
#if defined(CONFIG_STRICT_KERNEL_RWX) && defined(CONFIG_MODULES)
#define VMALLOC_START ((_ALIGN((long)high_memory, 256L << 20) + VMALLOC_OFFSET) & \
#define VMALLOC_START ((ALIGN((long)high_memory, 256L << 20) + VMALLOC_OFFSET) & \
~(VMALLOC_OFFSET - 1))
#else
#define VMALLOC_START ((((long)high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1)))
#endif
#ifdef CONFIG_KASAN_VMALLOC
#define VMALLOC_END _ALIGN_DOWN(ioremap_bot, PAGE_SIZE << KASAN_SHADOW_SCALE_SHIFT)
#define VMALLOC_END ALIGN_DOWN(ioremap_bot, PAGE_SIZE << KASAN_SHADOW_SCALE_SHIFT)
#else
#define VMALLOC_END ioremap_bot
#endif
@ -217,7 +217,7 @@ int map_kernel_page(unsigned long va, phys_addr_t pa, pgprot_t prot);
*/
#define pte_clear(mm, addr, ptep) \
do { pte_update(ptep, ~_PAGE_HASHPTE, 0); } while (0)
do { pte_update(mm, addr, ptep, ~_PAGE_HASHPTE, 0, 0); } while (0)
#define pmd_none(pmd) (!pmd_val(pmd))
#define pmd_bad(pmd) (pmd_val(pmd) & _PMD_BAD)
@ -252,84 +252,68 @@ extern void flush_hash_entry(struct mm_struct *mm, pte_t *ptep,
* and the PTE may be either 32 or 64 bit wide. In the later case,
* when using atomic updates, only the low part of the PTE is
* accessed atomically.
*
* In addition, on 44x, we also maintain a global flag indicating
* that an executable user mapping was modified, which is needed
* to properly flush the virtually tagged instruction cache of
* those implementations.
*/
#ifndef CONFIG_PTE_64BIT
static inline unsigned long pte_update(pte_t *p,
unsigned long clr,
unsigned long set)
static inline pte_basic_t pte_update(struct mm_struct *mm, unsigned long addr, pte_t *p,
unsigned long clr, unsigned long set, int huge)
{
unsigned long old, tmp;
__asm__ __volatile__("\
1: lwarx %0,0,%3\n\
andc %1,%0,%4\n\
or %1,%1,%5\n"
" stwcx. %1,0,%3\n\
bne- 1b"
: "=&r" (old), "=&r" (tmp), "=m" (*p)
: "r" (p), "r" (clr), "r" (set), "m" (*p)
: "cc" );
return old;
}
#else /* CONFIG_PTE_64BIT */
static inline unsigned long long pte_update(pte_t *p,
unsigned long clr,
unsigned long set)
{
unsigned long long old;
pte_basic_t old;
unsigned long tmp;
__asm__ __volatile__("\
1: lwarx %L0,0,%4\n\
lwzx %0,0,%3\n\
andc %1,%L0,%5\n\
or %1,%1,%6\n"
" stwcx. %1,0,%4\n\
bne- 1b"
__asm__ __volatile__(
#ifndef CONFIG_PTE_64BIT
"1: lwarx %0, 0, %3\n"
" andc %1, %0, %4\n"
#else
"1: lwarx %L0, 0, %3\n"
" lwz %0, -4(%3)\n"
" andc %1, %L0, %4\n"
#endif
" or %1, %1, %5\n"
" stwcx. %1, 0, %3\n"
" bne- 1b"
: "=&r" (old), "=&r" (tmp), "=m" (*p)
: "r" (p), "r" ((unsigned long)(p) + 4), "r" (clr), "r" (set), "m" (*p)
#ifndef CONFIG_PTE_64BIT
: "r" (p),
#else
: "b" ((unsigned long)(p) + 4),
#endif
"r" (clr), "r" (set), "m" (*p)
: "cc" );
return old;
}
#endif /* CONFIG_PTE_64BIT */
/*
* 2.6 calls this without flushing the TLB entry; this is wrong
* for our hash-based implementation, we fix that up here.
*/
#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
static inline int __ptep_test_and_clear_young(unsigned int context, unsigned long addr, pte_t *ptep)
static inline int __ptep_test_and_clear_young(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
unsigned long old;
old = pte_update(ptep, _PAGE_ACCESSED, 0);
old = pte_update(mm, addr, ptep, _PAGE_ACCESSED, 0, 0);
if (old & _PAGE_HASHPTE) {
unsigned long ptephys = __pa(ptep) & PAGE_MASK;
flush_hash_pages(context, addr, ptephys, 1);
flush_hash_pages(mm->context.id, addr, ptephys, 1);
}
return (old & _PAGE_ACCESSED) != 0;
}
#define ptep_test_and_clear_young(__vma, __addr, __ptep) \
__ptep_test_and_clear_young((__vma)->vm_mm->context.id, __addr, __ptep)
__ptep_test_and_clear_young((__vma)->vm_mm, __addr, __ptep)
#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep)
{
return __pte(pte_update(ptep, ~_PAGE_HASHPTE, 0));
return __pte(pte_update(mm, addr, ptep, ~_PAGE_HASHPTE, 0, 0));
}
#define __HAVE_ARCH_PTEP_SET_WRPROTECT
static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
pte_t *ptep)
{
pte_update(ptep, _PAGE_RW, 0);
pte_update(mm, addr, ptep, _PAGE_RW, 0, 0);
}
static inline void __ptep_set_access_flags(struct vm_area_struct *vma,
@ -340,7 +324,7 @@ static inline void __ptep_set_access_flags(struct vm_area_struct *vma,
unsigned long set = pte_val(entry) &
(_PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_RW | _PAGE_EXEC);
pte_update(ptep, 0, set);
pte_update(vma->vm_mm, address, ptep, 0, set, 0);
flush_tlb_page(vma, address);
}
@ -538,7 +522,7 @@ static inline void __set_pte_at(struct mm_struct *mm, unsigned long addr,
*ptep = __pte((pte_val(*ptep) & _PAGE_HASHPTE)
| (pte_val(pte) & ~_PAGE_HASHPTE));
else
pte_update(ptep, ~_PAGE_HASHPTE, pte_val(pte));
pte_update(mm, addr, ptep, ~_PAGE_HASHPTE, pte_val(pte), 0);
#elif defined(CONFIG_PTE_64BIT)
/* Second case is 32-bit with 64-bit PTE. In this case, we

41
arch/powerpc/include/asm/book3s/64/kup-radix.h
View File

@ -12,11 +12,17 @@
#ifdef __ASSEMBLY__
.macro kuap_restore_amr gpr
.macro kuap_restore_amr gpr1, gpr2
#ifdef CONFIG_PPC_KUAP
BEGIN_MMU_FTR_SECTION_NESTED(67)
ld \gpr, STACK_REGS_KUAP(r1)
mtspr SPRN_AMR, \gpr
mfspr \gpr1, SPRN_AMR
ld \gpr2, STACK_REGS_KUAP(r1)
cmpd \gpr1, \gpr2
beq 998f
isync
mtspr SPRN_AMR, \gpr2
/* No isync required, see kuap_restore_amr() */
998:
END_MMU_FTR_SECTION_NESTED_IFSET(MMU_FTR_RADIX_KUAP, 67)
#endif
.endm
@ -60,10 +66,28 @@
#include <asm/mmu.h>
#include <asm/ptrace.h>
static inline void kuap_restore_amr(struct pt_regs *regs)
static inline void kuap_restore_amr(struct pt_regs *regs, unsigned long amr)
{
if (mmu_has_feature(MMU_FTR_RADIX_KUAP))
if (mmu_has_feature(MMU_FTR_RADIX_KUAP) && unlikely(regs->kuap != amr)) {
isync();
mtspr(SPRN_AMR, regs->kuap);
/*
* No isync required here because we are about to RFI back to
* previous context before any user accesses would be made,
* which is a CSI.
*/
}
}
static inline unsigned long kuap_get_and_check_amr(void)
{
if (mmu_has_feature(MMU_FTR_RADIX_KUAP)) {
unsigned long amr = mfspr(SPRN_AMR);
if (IS_ENABLED(CONFIG_PPC_KUAP_DEBUG)) /* kuap_check_amr() */
WARN_ON_ONCE(amr != AMR_KUAP_BLOCKED);
return amr;
}
return 0;
}
static inline void kuap_check_amr(void)
@ -142,13 +166,18 @@ bad_kuap_fault(struct pt_regs *regs, unsigned long address, bool is_write)
"Bug: %s fault blocked by AMR!", is_write ? "Write" : "Read");
}
#else /* CONFIG_PPC_KUAP */
static inline void kuap_restore_amr(struct pt_regs *regs)
static inline void kuap_restore_amr(struct pt_regs *regs, unsigned long amr)
{
}
static inline void kuap_check_amr(void)
{
}
static inline unsigned long kuap_get_and_check_amr(void)
{
return 0;
}
#endif /* CONFIG_PPC_KUAP */
#endif /* __ASSEMBLY__ */

5
arch/powerpc/include/asm/book3s/64/mmu.h
View File

@ -116,6 +116,9 @@ typedef struct {
/* Number of users of the external (Nest) MMU */
atomic_t copros;
/* Number of user space windows opened in process mm_context */
atomic_t vas_windows;
struct hash_mm_context *hash_context;
unsigned long vdso_base;
@ -208,7 +211,7 @@ void hash__early_init_devtree(void);
void radix__early_init_devtree(void);
extern void hash__early_init_mmu(void);
extern void radix__early_init_mmu(void);
static inline void early_init_mmu(void)
static inline void __init early_init_mmu(void)
{
if (radix_enabled())
return radix__early_init_mmu();

50
arch/powerpc/include/asm/book3s/64/pgtable.h
View File

@ -553,6 +553,12 @@ static inline pte_t pte_clear_savedwrite(pte_t pte)
}
#endif /* CONFIG_NUMA_BALANCING */
static inline bool pte_hw_valid(pte_t pte)
{
return (pte_raw(pte) & cpu_to_be64(_PAGE_PRESENT | _PAGE_PTE)) ==
cpu_to_be64(_PAGE_PRESENT | _PAGE_PTE);
}
static inline int pte_present(pte_t pte)
{
/*
@ -561,12 +567,11 @@ static inline int pte_present(pte_t pte)
* invalid during ptep_set_access_flags. Hence we look for _PAGE_INVALID
* if we find _PAGE_PRESENT cleared.
*/
return !!(pte_raw(pte) & cpu_to_be64(_PAGE_PRESENT | _PAGE_INVALID));
}
static inline bool pte_hw_valid(pte_t pte)
{
return !!(pte_raw(pte) & cpu_to_be64(_PAGE_PRESENT));
if (pte_hw_valid(pte))
return true;
return (pte_raw(pte) & cpu_to_be64(_PAGE_INVALID | _PAGE_PTE)) ==
cpu_to_be64(_PAGE_INVALID | _PAGE_PTE);
}
#ifdef CONFIG_PPC_MEM_KEYS
@ -1004,10 +1009,25 @@ extern struct page *p4d_page(p4d_t p4d);
#define pud_page_vaddr(pud) __va(pud_val(pud) & ~PUD_MASKED_BITS)
#define p4d_page_vaddr(p4d) __va(p4d_val(p4d) & ~P4D_MASKED_BITS)
#define pgd_index(address) (((address) >> (PGDIR_SHIFT)) & (PTRS_PER_PGD - 1))
#define pud_index(address) (((address) >> (PUD_SHIFT)) & (PTRS_PER_PUD - 1))
#define pmd_index(address) (((address) >> (PMD_SHIFT)) & (PTRS_PER_PMD - 1))
#define pte_index(address) (((address) >> (PAGE_SHIFT)) & (PTRS_PER_PTE - 1))
static inline unsigned long pgd_index(unsigned long address)
{
return (address >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1);
}
static inline unsigned long pud_index(unsigned long address)
{
return (address >> PUD_SHIFT) & (PTRS_PER_PUD - 1);
}
static inline unsigned long pmd_index(unsigned long address)
{
return (address >> PMD_SHIFT) & (PTRS_PER_PMD - 1);
}
static inline unsigned long pte_index(unsigned long address)
{
return (address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1);
}
/*
* Find an entry in a page-table-directory. We combine the address region
@ -1145,8 +1165,11 @@ extern pmd_t mk_pmd(struct page *page, pgprot_t pgprot);
extern pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot);
extern void set_pmd_at(struct mm_struct *mm, unsigned long addr,
pmd_t *pmdp, pmd_t pmd);
extern void update_mmu_cache_pmd(struct vm_area_struct *vma, unsigned long addr,
pmd_t *pmd);
static inline void update_mmu_cache_pmd(struct vm_area_struct *vma,
unsigned long addr, pmd_t *pmd)
{
}
extern int hash__has_transparent_hugepage(void);
static inline int has_transparent_hugepage(void)
{
@ -1262,6 +1285,11 @@ static inline pmd_t pmdp_collapse_flush(struct vm_area_struct *vma,
}
#define pmdp_collapse_flush pmdp_collapse_flush
#define __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR_FULL
pmd_t pmdp_huge_get_and_clear_full(struct vm_area_struct *vma,
unsigned long addr,
pmd_t *pmdp, int full);
#define __HAVE_ARCH_PGTABLE_DEPOSIT
static inline void pgtable_trans_huge_deposit(struct mm_struct *mm,
pmd_t *pmdp, pgtable_t pgtable)

3
arch/powerpc/include/asm/book3s/64/tlbflush-hash.h
View File

@ -113,8 +113,7 @@ static inline void hash__flush_tlb_kernel_range(unsigned long start,
struct mmu_gather;
extern void hash__tlb_flush(struct mmu_gather *tlb);
/* Private function for use by PCI IO mapping code */
extern void __flush_hash_table_range(struct mm_struct *mm, unsigned long start,
unsigned long end);
extern void __flush_hash_table_range(unsigned long start, unsigned long end);
extern void flush_tlb_pmd_range(struct mm_struct *mm, pmd_t *pmd,
unsigned long addr);
#endif /* _ASM_POWERPC_BOOK3S_64_TLBFLUSH_HASH_H */

2
arch/powerpc/include/asm/cache.h
View File

@ -6,7 +6,7 @@
/* bytes per L1 cache line */
#if defined(CONFIG_PPC_8xx) || defined(CONFIG_403GCX)
#if defined(CONFIG_PPC_8xx)
#define L1_CACHE_SHIFT 4
#define MAX_COPY_PREFETCH 1
#define IFETCH_ALIGN_SHIFT 2

11
arch/powerpc/include/asm/cmpxchg.h
View File

@ -6,7 +6,6 @@
#include <linux/compiler.h>
#include <asm/synch.h>
#include <linux/bug.h>
#include <asm/asm-405.h>
#ifdef __BIG_ENDIAN
#define BITOFF_CAL(size, off) ((sizeof(u32) - size - off) * BITS_PER_BYTE)
@ -29,7 +28,6 @@ static inline u32 __xchg_##type##sfx(volatile void *p, u32 val) \
"1: lwarx %0,0,%3\n" \
" andc %1,%0,%5\n" \
" or %1,%1,%4\n" \
PPC405_ERR77(0,%3) \
" stwcx. %1,0,%3\n" \
" bne- 1b\n" \
: "=&r" (prev), "=&r" (tmp), "+m" (*(u32*)p) \
@ -60,7 +58,6 @@ u32 __cmpxchg_##type##sfx(volatile void *p, u32 old, u32 new) \
" bne- 2f\n" \
" andc %1,%0,%6\n" \
" or %1,%1,%5\n" \
PPC405_ERR77(0,%3) \
" stwcx. %1,0,%3\n" \
" bne- 1b\n" \
br2 \
@ -92,7 +89,6 @@ __xchg_u32_local(volatile void *p, unsigned long val)
__asm__ __volatile__(
"1: lwarx %0,0,%2 \n"
PPC405_ERR77(0,%2)
" stwcx. %3,0,%2 \n\
bne- 1b"
: "=&r" (prev), "+m" (*(volatile unsigned int *)p)
@ -109,7 +105,6 @@ __xchg_u32_relaxed(u32 *p, unsigned long val)
__asm__ __volatile__(
"1: lwarx %0,0,%2\n"
PPC405_ERR77(0, %2)
" stwcx. %3,0,%2\n"
" bne- 1b"
: "=&r" (prev), "+m" (*p)
@ -127,7 +122,6 @@ __xchg_u64_local(volatile void *p, unsigned long val)
__asm__ __volatile__(
"1: ldarx %0,0,%2 \n"
PPC405_ERR77(0,%2)
" stdcx. %3,0,%2 \n\
bne- 1b"
: "=&r" (prev), "+m" (*(volatile unsigned long *)p)
@ -144,7 +138,6 @@ __xchg_u64_relaxed(u64 *p, unsigned long val)
__asm__ __volatile__(
"1: ldarx %0,0,%2\n"
PPC405_ERR77(0, %2)
" stdcx. %3,0,%2\n"
" bne- 1b"
: "=&r" (prev), "+m" (*p)
@ -229,7 +222,6 @@ __cmpxchg_u32(volatile unsigned int *p, unsigned long old, unsigned long new)
"1: lwarx %0,0,%2 # __cmpxchg_u32\n\
cmpw 0,%0,%3\n\
bne- 2f\n"
PPC405_ERR77(0,%2)
" stwcx. %4,0,%2\n\
bne- 1b"
PPC_ATOMIC_EXIT_BARRIER
@ -252,7 +244,6 @@ __cmpxchg_u32_local(volatile unsigned int *p, unsigned long old,
"1: lwarx %0,0,%2 # __cmpxchg_u32\n\
cmpw 0,%0,%3\n\
bne- 2f\n"
PPC405_ERR77(0,%2)
" stwcx. %4,0,%2\n\
bne- 1b"
"\n\
@ -273,7 +264,6 @@ __cmpxchg_u32_relaxed(u32 *p, unsigned long old, unsigned long new)
"1: lwarx %0,0,%2 # __cmpxchg_u32_relaxed\n"
" cmpw 0,%0,%3\n"
" bne- 2f\n"
PPC405_ERR77(0, %2)
" stwcx. %4,0,%2\n"
" bne- 1b\n"
"2:"
@ -301,7 +291,6 @@ __cmpxchg_u32_acquire(u32 *p, unsigned long old, unsigned long new)
"1: lwarx %0,0,%2 # __cmpxchg_u32_acquire\n"
" cmpw 0,%0,%3\n"
" bne- 2f\n"
PPC405_ERR77(0, %2)
" stwcx. %4,0,%2\n"
" bne- 1b\n"
PPC_ACQUIRE_BARRIER

37
arch/powerpc/include/asm/code-patching.h
View File

@ -11,6 +11,7 @@
#include <linux/string.h>
#include <linux/kallsyms.h>
#include <asm/asm-compat.h>
#include <asm/inst.h>
/* Flags for create_branch:
* "b" == create_branch(addr, target, 0);
@ -22,33 +23,33 @@
#define BRANCH_ABSOLUTE 0x2
bool is_offset_in_branch_range(long offset);
unsigned int create_branch(const unsigned int *addr,
unsigned long target, int flags);
unsigned int create_cond_branch(const unsigned int *addr,
unsigned long target, int flags);
int patch_branch(unsigned int *addr, unsigned long target, int flags);
int patch_instruction(unsigned int *addr, unsigned int instr);
int raw_patch_instruction(unsigned int *addr, unsigned int instr);
int create_branch(struct ppc_inst *instr, const struct ppc_inst *addr,
unsigned long target, int flags);
int create_cond_branch(struct ppc_inst *instr, const struct ppc_inst *addr,
unsigned long target, int flags);
int patch_branch(struct ppc_inst *addr, unsigned long target, int flags);
int patch_instruction(struct ppc_inst *addr, struct ppc_inst instr);
int raw_patch_instruction(struct ppc_inst *addr, struct ppc_inst instr);
static inline unsigned long patch_site_addr(s32 *site)
{
return (unsigned long)site + *site;
}
static inline int patch_instruction_site(s32 *site, unsigned int instr)
static inline int patch_instruction_site(s32 *site, struct ppc_inst instr)
{
return patch_instruction((unsigned int *)patch_site_addr(site), instr);
return patch_instruction((struct ppc_inst *)patch_site_addr(site), instr);
}
static inline int patch_branch_site(s32 *site, unsigned long target, int flags)
{
return patch_branch((unsigned int *)patch_site_addr(site), target, flags);
return patch_branch((struct ppc_inst *)patch_site_addr(site), target, flags);
}
static inline int modify_instruction(unsigned int *addr, unsigned int clr,
unsigned int set)
{
return patch_instruction(addr, (*addr & ~clr) | set);
return patch_instruction((struct ppc_inst *)addr, ppc_inst((*addr & ~clr) | set));
}
static inline int modify_instruction_site(s32 *site, unsigned int clr, unsigned int set)
@ -56,13 +57,13 @@ static inline int modify_instruction_site(s32 *site, unsigned int clr, unsigned
return modify_instruction((unsigned int *)patch_site_addr(site), clr, set);
}
int instr_is_relative_branch(unsigned int instr);
int instr_is_relative_link_branch(unsigned int instr);
int instr_is_branch_to_addr(const unsigned int *instr, unsigned long addr);
unsigned long branch_target(const unsigned int *instr);
unsigned int translate_branch(const unsigned int *dest,
const unsigned int *src);
extern bool is_conditional_branch(unsigned int instr);
int instr_is_relative_branch(struct ppc_inst instr);
int instr_is_relative_link_branch(struct ppc_inst instr);
int instr_is_branch_to_addr(const struct ppc_inst *instr, unsigned long addr);
unsigned long branch_target(const struct ppc_inst *instr);
int translate_branch(struct ppc_inst *instr, const struct ppc_inst *dest,
const struct ppc_inst *src);
extern bool is_conditional_branch(struct ppc_inst instr);
#ifdef CONFIG_PPC_BOOK3E_64
void __patch_exception(int exc, unsigned long addr);
#define patch_exception(exc, name) do { \

22
arch/powerpc/include/asm/cputable.h
View File

@ -213,6 +213,7 @@ static inline void cpu_feature_keys_init(void) { }
#define CPU_FTR_P9_TIDR LONG_ASM_CONST(0x0000800000000000)
#define CPU_FTR_P9_TLBIE_ERAT_BUG LONG_ASM_CONST(0x0001000000000000)
#define CPU_FTR_P9_RADIX_PREFETCH_BUG LONG_ASM_CONST(0x0002000000000000)
#define CPU_FTR_ARCH_31 LONG_ASM_CONST(0x0004000000000000)
#ifndef __ASSEMBLY__
@ -467,6 +468,17 @@ static inline void cpu_feature_keys_init(void) { }
#define CPU_FTRS_POWER9_DD2_2 (CPU_FTRS_POWER9 | CPU_FTR_POWER9_DD2_1 | \
CPU_FTR_P9_TM_HV_ASSIST | \
CPU_FTR_P9_TM_XER_SO_BUG)
#define CPU_FTRS_POWER10 (CPU_FTR_LWSYNC | \
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | CPU_FTR_ARCH_206 |\
CPU_FTR_MMCRA | CPU_FTR_SMT | \
CPU_FTR_COHERENT_ICACHE | \
CPU_FTR_PURR | CPU_FTR_SPURR | CPU_FTR_REAL_LE | \
CPU_FTR_DSCR | CPU_FTR_SAO | \
CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB | CPU_FTR_POPCNTD | \
CPU_FTR_CFAR | CPU_FTR_HVMODE | CPU_FTR_VMX_COPY | \
CPU_FTR_DBELL | CPU_FTR_HAS_PPR | CPU_FTR_ARCH_207S | \
CPU_FTR_TM_COMP | CPU_FTR_ARCH_300 | CPU_FTR_PKEY | \
CPU_FTR_ARCH_31)
#define CPU_FTRS_CELL (CPU_FTR_LWSYNC | \
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \
@ -485,14 +497,14 @@ static inline void cpu_feature_keys_init(void) { }
#define CPU_FTRS_POSSIBLE \
(CPU_FTRS_POWER7 | CPU_FTRS_POWER8E | CPU_FTRS_POWER8 | \
CPU_FTR_ALTIVEC_COMP | CPU_FTR_VSX_COMP | CPU_FTRS_POWER9 | \
CPU_FTRS_POWER9_DD2_1 | CPU_FTRS_POWER9_DD2_2)
CPU_FTRS_POWER9_DD2_1 | CPU_FTRS_POWER9_DD2_2 | CPU_FTRS_POWER10)
#else
#define CPU_FTRS_POSSIBLE \
(CPU_FTRS_PPC970 | CPU_FTRS_POWER5 | \
CPU_FTRS_POWER6 | CPU_FTRS_POWER7 | CPU_FTRS_POWER8E | \
CPU_FTRS_POWER8 | CPU_FTRS_CELL | CPU_FTRS_PA6T | \
CPU_FTR_VSX_COMP | CPU_FTR_ALTIVEC_COMP | CPU_FTRS_POWER9 | \
CPU_FTRS_POWER9_DD2_1 | CPU_FTRS_POWER9_DD2_2)
CPU_FTRS_POWER9_DD2_1 | CPU_FTRS_POWER9_DD2_2 | CPU_FTRS_POWER10)
#endif /* CONFIG_CPU_LITTLE_ENDIAN */
#endif
#else
@ -614,7 +626,11 @@ enum {
};
#endif /* __powerpc64__ */
#define HBP_NUM 1
/*
* Maximum number of hw breakpoint supported on powerpc. Number of
* breakpoints supported by actual hw might be less than this.
*/
#define HBP_NUM_MAX 1
#endif /* !__ASSEMBLY__ */

2
arch/powerpc/include/asm/debug.h
View File

@ -45,7 +45,7 @@ static inline int debugger_break_match(struct pt_regs *regs) { return 0; }
static inline int debugger_fault_handler(struct pt_regs *regs) { return 0; }
#endif
void __set_breakpoint(struct arch_hw_breakpoint *brk);
void __set_breakpoint(int nr, struct arch_hw_breakpoint *brk);
bool ppc_breakpoint_available(void);
#ifdef CONFIG_PPC_ADV_DEBUG_REGS
extern void do_send_trap(struct pt_regs *regs, unsigned long address,

1
arch/powerpc/include/asm/drmem.h
View File

@ -65,6 +65,7 @@ struct of_drconf_cell_v2 {
#define DRCONF_MEM_ASSIGNED 0x00000008
#define DRCONF_MEM_AI_INVALID 0x00000040
#define DRCONF_MEM_RESERVED 0x00000080
#define DRCONF_MEM_HOTREMOVABLE 0x00000100
static inline u32 drmem_lmb_size(void)
{

4
arch/powerpc/include/asm/fadump-internal.h
View File

@ -64,12 +64,14 @@ struct fadump_memory_range {
};
/* fadump memory ranges info */
#define RNG_NAME_SZ 16
struct fadump_mrange_info {
char name[16];
char name[RNG_NAME_SZ];
struct fadump_memory_range *mem_ranges;
u32 mem_ranges_sz;
u32 mem_range_cnt;
u32 max_mem_ranges;
bool is_static;
};
/* Platform specific callback functions */

1
arch/powerpc/include/asm/firmware.h
View File

@ -128,6 +128,7 @@ extern void machine_check_fwnmi(void);
/* This is true if we are using the firmware NMI handler (typically LPAR) */
extern int fwnmi_active;
extern int ibm_nmi_interlock_token;
extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup;

4
arch/powerpc/include/asm/fixmap.h
View File

@ -86,6 +86,10 @@ enum fixed_addresses {
#define __FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
#define FIXADDR_START (FIXADDR_TOP - __FIXADDR_SIZE)
#define FIXMAP_ALIGNED_SIZE (ALIGN(FIXADDR_TOP, PGDIR_SIZE) - \
ALIGN_DOWN(FIXADDR_START, PGDIR_SIZE))
#define FIXMAP_PTE_SIZE (FIXMAP_ALIGNED_SIZE / PGDIR_SIZE * PTE_TABLE_SIZE)
#define FIXMAP_PAGE_NOCACHE PAGE_KERNEL_NCG
#define FIXMAP_PAGE_IO PAGE_KERNEL_NCG

14
arch/powerpc/include/asm/ftrace.h
View File

@ -108,9 +108,23 @@ static inline void this_cpu_enable_ftrace(void)
{
get_paca()->ftrace_enabled = 1;
}
/* Disable ftrace on this CPU if possible (may not be implemented) */
static inline void this_cpu_set_ftrace_enabled(u8 ftrace_enabled)
{
get_paca()->ftrace_enabled = ftrace_enabled;
}
static inline u8 this_cpu_get_ftrace_enabled(void)
{
return get_paca()->ftrace_enabled;
}
#else /* CONFIG_PPC64 */
static inline void this_cpu_disable_ftrace(void) { }
static inline void this_cpu_enable_ftrace(void) { }
static inline void this_cpu_set_ftrace_enabled(u8 ftrace_enabled) { }
static inline u8 this_cpu_get_ftrace_enabled(void) { return 1; }
#endif /* CONFIG_PPC64 */
#endif /* !__ASSEMBLY__ */

3
arch/powerpc/include/asm/futex.h
View File

@ -8,14 +8,12 @@
#include <linux/uaccess.h>
#include <asm/errno.h>
#include <asm/synch.h>
#include <asm/asm-405.h>
#define __futex_atomic_op(insn, ret, oldval, uaddr, oparg) \
__asm__ __volatile ( \
PPC_ATOMIC_ENTRY_BARRIER \
"1: lwarx %0,0,%2\n" \
insn \
PPC405_ERR77(0, %2) \
"2: stwcx. %1,0,%2\n" \
"bne- 1b\n" \
PPC_ATOMIC_EXIT_BARRIER \
@ -82,7 +80,6 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
"1: lwarx %1,0,%3 # futex_atomic_cmpxchg_inatomic\n\
cmpw 0,%1,%4\n\
bne- 3f\n"
PPC405_ERR77(0,%3)
"2: stwcx. %5,0,%3\n\
bne- 1b\n"
PPC_ATOMIC_EXIT_BARRIER

4
arch/powerpc/include/asm/hugetlb.h
View File

@ -41,11 +41,7 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
#ifdef CONFIG_PPC64
return __pte(pte_update(mm, addr, ptep, ~0UL, 0, 1));
#else
return __pte(pte_update(ptep, ~0UL, 0));
#endif
}
#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH

29
arch/powerpc/include/asm/hw_breakpoint.h
View File

@ -34,15 +34,21 @@ struct arch_hw_breakpoint {
#define HW_BRK_TYPE_PRIV_ALL (HW_BRK_TYPE_USER | HW_BRK_TYPE_KERNEL | \
HW_BRK_TYPE_HYP)
/* Minimum granularity */
#ifdef CONFIG_PPC_8xx
#define HW_BREAKPOINT_ALIGN 0x3
#define HW_BREAKPOINT_SIZE 0x4
#else
#define HW_BREAKPOINT_ALIGN 0x7
#define HW_BREAKPOINT_SIZE 0x8
#endif
#define DABR_MAX_LEN 8
#define DAWR_MAX_LEN 512
static inline int nr_wp_slots(void)
{
return HBP_NUM_MAX;
}
#ifdef CONFIG_HAVE_HW_BREAKPOINT
#include <linux/kdebug.h>
#include <asm/reg.h>
@ -64,7 +70,6 @@ extern int hw_breakpoint_exceptions_notify(struct notifier_block *unused,
unsigned long val, void *data);
int arch_install_hw_breakpoint(struct perf_event *bp);
void arch_uninstall_hw_breakpoint(struct perf_event *bp);
void arch_unregister_hw_breakpoint(struct perf_event *bp);
void hw_breakpoint_pmu_read(struct perf_event *bp);
extern void flush_ptrace_hw_breakpoint(struct task_struct *tsk);
@ -73,14 +78,14 @@ extern void ptrace_triggered(struct perf_event *bp,
struct perf_sample_data *data, struct pt_regs *regs);
static inline void hw_breakpoint_disable(void)
{
struct arch_hw_breakpoint brk;
int i;
struct arch_hw_breakpoint null_brk = {0};
brk.address = 0;
brk.type = 0;
brk.len = 0;
brk.hw_len = 0;
if (ppc_breakpoint_available())
__set_breakpoint(&brk);
if (!ppc_breakpoint_available())
return;
for (i = 0; i < nr_wp_slots(); i++)
__set_breakpoint(i, &null_brk);
}
extern void thread_change_pc(struct task_struct *tsk, struct pt_regs *regs);
int hw_breakpoint_handler(struct die_args *args);
@ -99,10 +104,10 @@ static inline bool dawr_enabled(void)
{
return dawr_force_enable;
}
int set_dawr(struct arch_hw_breakpoint *brk);
int set_dawr(int nr, struct arch_hw_breakpoint *brk);
#else
static inline bool dawr_enabled(void) { return false; }
static inline int set_dawr(struct arch_hw_breakpoint *brk) { return -1; }
static inline int set_dawr(int nr, struct arch_hw_breakpoint *brk) { return -1; }
#endif
#endif /* __KERNEL__ */

20
arch/powerpc/include/asm/icswx.h
View File

@ -108,6 +108,17 @@ struct data_descriptor_entry {
__be64 address;
} __packed __aligned(DDE_ALIGN);
/* 4.3.2 NX-stamped Fault CRB */
#define NX_STAMP_ALIGN (0x10)
struct nx_fault_stamp {
__be64 fault_storage_addr;
__be16 reserved;
__u8 flags;
__u8 fault_status;
__be32 pswid;
} __packed __aligned(NX_STAMP_ALIGN);
/* Chapter 6.5.2 Coprocessor-Request Block (CRB) */
@ -135,10 +146,15 @@ struct coprocessor_request_block {
struct coprocessor_completion_block ccb;
u8 reserved[48];
union {
struct nx_fault_stamp nx;
u8 reserved[16];
} stamp;
u8 reserved[32];
struct coprocessor_status_block csb;
} __packed __aligned(CRB_ALIGN);
} __packed;
/* RFC02167 Initiate Coprocessor Instructions document

93
arch/powerpc/include/asm/idle.h Normal file
View File

@ -0,0 +1,93 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _ASM_POWERPC_IDLE_H
#define _ASM_POWERPC_IDLE_H
#include <asm/runlatch.h>
#include <asm/paca.h>
#ifdef CONFIG_PPC_PSERIES
DECLARE_PER_CPU(u64, idle_spurr_cycles);
DECLARE_PER_CPU(u64, idle_entry_purr_snap);
DECLARE_PER_CPU(u64, idle_entry_spurr_snap);
static inline void snapshot_purr_idle_entry(void)
{
*this_cpu_ptr(&idle_entry_purr_snap) = mfspr(SPRN_PURR);
}
static inline void snapshot_spurr_idle_entry(void)
{
*this_cpu_ptr(&idle_entry_spurr_snap) = mfspr(SPRN_SPURR);
}
static inline void update_idle_purr_accounting(void)
{
u64 wait_cycles;
u64 in_purr = *this_cpu_ptr(&idle_entry_purr_snap);
wait_cycles = be64_to_cpu(get_lppaca()->wait_state_cycles);
wait_cycles += mfspr(SPRN_PURR) - in_purr;
get_lppaca()->wait_state_cycles = cpu_to_be64(wait_cycles);
}
static inline void update_idle_spurr_accounting(void)
{
u64 *idle_spurr_cycles_ptr = this_cpu_ptr(&idle_spurr_cycles);
u64 in_spurr = *this_cpu_ptr(&idle_entry_spurr_snap);
*idle_spurr_cycles_ptr += mfspr(SPRN_SPURR) - in_spurr;
}
static inline void pseries_idle_prolog(void)
{
ppc64_runlatch_off();
snapshot_purr_idle_entry();
snapshot_spurr_idle_entry();
/*
* Indicate to the HV that we are idle. Now would be
* a good time to find other work to dispatch.
*/
get_lppaca()->idle = 1;
}
static inline void pseries_idle_epilog(void)
{
update_idle_purr_accounting();
update_idle_spurr_accounting();
get_lppaca()->idle = 0;
ppc64_runlatch_on();
}
static inline u64 read_this_idle_purr(void)
{
/*
* If we are reading from an idle context, update the
* idle-purr cycles corresponding to the last idle period.
* Since the idle context is not yet over, take a fresh
* snapshot of the idle-purr.
*/
if (unlikely(get_lppaca()->idle == 1)) {
update_idle_purr_accounting();
snapshot_purr_idle_entry();
}
return be64_to_cpu(get_lppaca()->wait_state_cycles);
}
static inline u64 read_this_idle_spurr(void)
{
/*
* If we are reading from an idle context, update the
* idle-spurr cycles corresponding to the last idle period.
* Since the idle context is not yet over, take a fresh
* snapshot of the idle-spurr.
*/
if (get_lppaca()->idle == 1) {
update_idle_spurr_accounting();
snapshot_spurr_idle_entry();
}
return *this_cpu_ptr(&idle_spurr_cycles);
}
#endif /* CONFIG_PPC_PSERIES */
#endif

131
arch/powerpc/include/asm/inst.h Normal file
View File

@ -0,0 +1,131 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _ASM_POWERPC_INST_H
#define _ASM_POWERPC_INST_H
#include <asm/ppc-opcode.h>
/*
* Instruction data type for POWER
*/
struct ppc_inst {
u32 val;
#ifdef CONFIG_PPC64
u32 suffix;
#endif
} __packed;
static inline u32 ppc_inst_val(struct ppc_inst x)
{
return x.val;
}
static inline int ppc_inst_primary_opcode(struct ppc_inst x)
{
return ppc_inst_val(x) >> 26;
}
#ifdef CONFIG_PPC64
#define ppc_inst(x) ((struct ppc_inst){ .val = (x), .suffix = 0xff })
#define ppc_inst_prefix(x, y) ((struct ppc_inst){ .val = (x), .suffix = (y) })
static inline u32 ppc_inst_suffix(struct ppc_inst x)
{
return x.suffix;
}
static inline bool ppc_inst_prefixed(struct ppc_inst x)
{
return (ppc_inst_primary_opcode(x) == 1) && ppc_inst_suffix(x) != 0xff;
}
static inline struct ppc_inst ppc_inst_swab(struct ppc_inst x)
{
return ppc_inst_prefix(swab32(ppc_inst_val(x)),
swab32(ppc_inst_suffix(x)));
}
static inline struct ppc_inst ppc_inst_read(const struct ppc_inst *ptr)
{
u32 val, suffix;
val = *(u32 *)ptr;
if ((val >> 26) == OP_PREFIX) {
suffix = *((u32 *)ptr + 1);
return ppc_inst_prefix(val, suffix);
} else {
return ppc_inst(val);
}
}
static inline bool ppc_inst_equal(struct ppc_inst x, struct ppc_inst y)
{
return *(u64 *)&x == *(u64 *)&y;
}
#else
#define ppc_inst(x) ((struct ppc_inst){ .val = x })
static inline bool ppc_inst_prefixed(struct ppc_inst x)
{
return false;
}
static inline u32 ppc_inst_suffix(struct ppc_inst x)
{
return 0;
}
static inline struct ppc_inst ppc_inst_swab(struct ppc_inst x)
{
return ppc_inst(swab32(ppc_inst_val(x)));
}
static inline struct ppc_inst ppc_inst_read(const struct ppc_inst *ptr)
{
return *ptr;
}
static inline bool ppc_inst_equal(struct ppc_inst x, struct ppc_inst y)
{
return ppc_inst_val(x) == ppc_inst_val(y);
}
#endif /* CONFIG_PPC64 */
static inline int ppc_inst_len(struct ppc_inst x)
{
return ppc_inst_prefixed(x) ? 8 : 4;
}
/*
* Return the address of the next instruction, if the instruction @value was
* located at @location.
*/
static inline struct ppc_inst *ppc_inst_next(void *location, struct ppc_inst *value)
{
struct ppc_inst tmp;
tmp = ppc_inst_read(value);
return location + ppc_inst_len(tmp);
}
static inline u64 ppc_inst_as_u64(struct ppc_inst x)
{
#ifdef CONFIG_CPU_LITTLE_ENDIAN
return (u64)ppc_inst_suffix(x) << 32 | ppc_inst_val(x);
#else
return (u64)ppc_inst_val(x) << 32 | ppc_inst_suffix(x);
#endif
}
int probe_user_read_inst(struct ppc_inst *inst,
struct ppc_inst __user *nip);
int probe_kernel_read_inst(struct ppc_inst *inst,
struct ppc_inst *src);
#endif /* _ASM_POWERPC_INST_H */

4
arch/powerpc/include/asm/iommu.h
View File

@ -22,11 +22,11 @@
#define IOMMU_PAGE_SHIFT_4K 12
#define IOMMU_PAGE_SIZE_4K (ASM_CONST(1) << IOMMU_PAGE_SHIFT_4K)
#define IOMMU_PAGE_MASK_4K (~((1 << IOMMU_PAGE_SHIFT_4K) - 1))
#define IOMMU_PAGE_ALIGN_4K(addr) _ALIGN_UP(addr, IOMMU_PAGE_SIZE_4K)
#define IOMMU_PAGE_ALIGN_4K(addr) ALIGN(addr, IOMMU_PAGE_SIZE_4K)
#define IOMMU_PAGE_SIZE(tblptr) (ASM_CONST(1) << (tblptr)->it_page_shift)
#define IOMMU_PAGE_MASK(tblptr) (~((1 << (tblptr)->it_page_shift) - 1))
#define IOMMU_PAGE_ALIGN(addr, tblptr) _ALIGN_UP(addr, IOMMU_PAGE_SIZE(tblptr))
#define IOMMU_PAGE_ALIGN(addr, tblptr) ALIGN(addr, IOMMU_PAGE_SIZE(tblptr))
/* Boot time flags */
extern int iommu_is_off;

10
arch/powerpc/include/asm/kasan.h
View File

@ -23,20 +23,20 @@
#define KASAN_SHADOW_OFFSET ASM_CONST(CONFIG_KASAN_SHADOW_OFFSET)
#define KASAN_SHADOW_END 0UL
#define KASAN_SHADOW_SIZE (KASAN_SHADOW_END - KASAN_SHADOW_START)
#define KASAN_SHADOW_END (-(-KASAN_SHADOW_START >> KASAN_SHADOW_SCALE_SHIFT))
#ifdef CONFIG_KASAN
void kasan_early_init(void);
void kasan_mmu_init(void);
void kasan_init(void);
void kasan_late_init(void);
#else
static inline void kasan_init(void) { }
static inline void kasan_mmu_init(void) { }
static inline void kasan_late_init(void) { }
#endif
void kasan_update_early_region(unsigned long k_start, unsigned long k_end, pte_t pte);
int kasan_init_shadow_page_tables(unsigned long k_start, unsigned long k_end);
int kasan_init_region(void *start, size_t size);
#endif /* __ASSEMBLY */
#endif

2
arch/powerpc/include/asm/kprobes.h
View File

@ -43,7 +43,7 @@ extern kprobe_opcode_t optprobe_template_ret[];
extern kprobe_opcode_t optprobe_template_end[];
/* Fixed instruction size for powerpc */
#define MAX_INSN_SIZE 1
#define MAX_INSN_SIZE 2
#define MAX_OPTIMIZED_LENGTH sizeof(kprobe_opcode_t) /* 4 bytes */
#define MAX_OPTINSN_SIZE (optprobe_template_end - optprobe_template_entry)
#define RELATIVEJUMP_SIZE sizeof(kprobe_opcode_t) /* 4 bytes */

14
arch/powerpc/include/asm/kup.h
View File

@ -10,7 +10,9 @@
* Use the current saved situation instead of the to/from/size params.
* Used on book3s/32
*/
#define KUAP_CURRENT 4
#define KUAP_CURRENT_READ 4
#define KUAP_CURRENT_WRITE 8
#define KUAP_CURRENT (KUAP_CURRENT_READ | KUAP_CURRENT_WRITE)
#ifdef CONFIG_PPC64
#include <asm/book3s/64/kup-radix.h>
@ -101,6 +103,16 @@ static inline void prevent_current_access_user(void)
prevent_user_access(NULL, NULL, ~0UL, KUAP_CURRENT);
}
static inline void prevent_current_read_from_user(void)
{
prevent_user_access(NULL, NULL, ~0UL, KUAP_CURRENT_READ);
}
static inline void prevent_current_write_to_user(void)
{
prevent_user_access(NULL, NULL, ~0UL, KUAP_CURRENT_WRITE);
}
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_POWERPC_KUAP_H_ */

2
arch/powerpc/include/asm/kvm_book3s.h
View File

@ -198,7 +198,7 @@ extern void kvmppc_unmap_pte(struct kvm *kvm, pte_t *pte, unsigned long gpa,
unsigned int shift,
const struct kvm_memory_slot *memslot,
unsigned int lpid);
extern bool kvmppc_hv_handle_set_rc(struct kvm *kvm, pgd_t *pgtable,
extern bool kvmppc_hv_handle_set_rc(struct kvm *kvm, bool nested,
bool writing, unsigned long gpa,
unsigned int lpid);
extern int kvmppc_book3s_instantiate_page(struct kvm_vcpu *vcpu,

44
arch/powerpc/include/asm/kvm_book3s_64.h
View File

@ -14,6 +14,7 @@
#include <asm/book3s/64/mmu-hash.h>
#include <asm/cpu_has_feature.h>
#include <asm/ppc-opcode.h>
#include <asm/pte-walk.h>
#ifdef CONFIG_PPC_PSERIES
static inline bool kvmhv_on_pseries(void)
@ -434,7 +435,7 @@ static inline pte_t kvmppc_read_update_linux_pte(pte_t *ptep, int writing)
continue;
}
/* If pte is not present return None */
if (unlikely(!(pte_val(old_pte) & _PAGE_PRESENT)))
if (unlikely(!pte_present(old_pte)))
return __pte(0);
new_pte = pte_mkyoung(old_pte);
@ -634,6 +635,47 @@ extern void kvmhv_remove_nest_rmap_range(struct kvm *kvm,
unsigned long gpa, unsigned long hpa,
unsigned long nbytes);
static inline pte_t *
find_kvm_secondary_pte_unlocked(struct kvm *kvm, unsigned long ea,
unsigned *hshift)
{
pte_t *pte;
pte = __find_linux_pte(kvm->arch.pgtable, ea, NULL, hshift);
return pte;
}
static inline pte_t *find_kvm_secondary_pte(struct kvm *kvm, unsigned long ea,
unsigned *hshift)
{
pte_t *pte;
VM_WARN(!spin_is_locked(&kvm->mmu_lock),
"%s called with kvm mmu_lock not held \n", __func__);
pte = __find_linux_pte(kvm->arch.pgtable, ea, NULL, hshift);
return pte;
}
static inline pte_t *find_kvm_host_pte(struct kvm *kvm, unsigned long mmu_seq,
unsigned long ea, unsigned *hshift)
{
pte_t *pte;
VM_WARN(!spin_is_locked(&kvm->mmu_lock),
"%s called with kvm mmu_lock not held \n", __func__);
if (mmu_notifier_retry(kvm, mmu_seq))
return NULL;
pte = __find_linux_pte(kvm->mm->pgd, ea, NULL, hshift);
return pte;
}
extern pte_t *find_kvm_nested_guest_pte(struct kvm *kvm, unsigned long lpid,
unsigned long ea, unsigned *hshift);
#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
#endif /* __ASM_KVM_BOOK3S_64_H__ */

10
arch/powerpc/include/asm/mmu.h
View File

@ -122,6 +122,7 @@
#define MMU_FTRS_POWER7 MMU_FTRS_POWER6
#define MMU_FTRS_POWER8 MMU_FTRS_POWER6
#define MMU_FTRS_POWER9 MMU_FTRS_POWER6
#define MMU_FTRS_POWER10 MMU_FTRS_POWER6
#define MMU_FTRS_CELL MMU_FTRS_DEFAULT_HPTE_ARCH_V2 | \
MMU_FTR_CI_LARGE_PAGE
#define MMU_FTRS_PA6T MMU_FTRS_DEFAULT_HPTE_ARCH_V2 | \
@ -291,15 +292,6 @@ static inline bool early_radix_enabled(void)
}
#endif
#ifdef CONFIG_PPC_MEM_KEYS
extern u16 get_mm_addr_key(struct mm_struct *mm, unsigned long address);
#else
static inline u16 get_mm_addr_key(struct mm_struct *mm, unsigned long address)
{
return 0;
}
#endif /* CONFIG_PPC_MEM_KEYS */
#ifdef CONFIG_STRICT_KERNEL_RWX
static inline bool strict_kernel_rwx_enabled(void)
{

30
arch/powerpc/include/asm/mmu_context.h
View File

@ -185,11 +185,41 @@ static inline void mm_context_remove_copro(struct mm_struct *mm)
dec_mm_active_cpus(mm);
}
}
/*
* vas_windows counter shows number of open windows in the mm
* context. During context switch, use this counter to clear the
* foreign real address mapping (CP_ABORT) for the thread / process
* that intend to use COPY/PASTE. When a process closes all windows,
* disable CP_ABORT which is expensive to run.
*
* For user context, register a copro so that TLBIs are seen by the
* nest MMU. mm_context_add/remove_vas_window() are used only for user
* space windows.
*/
static inline void mm_context_add_vas_window(struct mm_struct *mm)
{
atomic_inc(&mm->context.vas_windows);
mm_context_add_copro(mm);
}
static inline void mm_context_remove_vas_window(struct mm_struct *mm)
{
int v;
mm_context_remove_copro(mm);
v = atomic_dec_if_positive(&mm->context.vas_windows);
/* Detect imbalance between add and remove */
WARN_ON(v < 0);
}
#else
static inline void inc_mm_active_cpus(struct mm_struct *mm) { }
static inline void dec_mm_active_cpus(struct mm_struct *mm) { }
static inline void mm_context_add_copro(struct mm_struct *mm) { }
static inline void mm_context_remove_copro(struct mm_struct *mm) { }
static inline void mm_context_add_vas_windows(struct mm_struct *mm) { }
static inline void mm_context_remove_vas_windows(struct mm_struct *mm) { }
#endif

3
arch/powerpc/include/asm/module.h
View File

@ -72,12 +72,9 @@ struct mod_arch_specific {
# ifdef MODULE
asm(".section .ftrace.tramp,\"ax\",@nobits; .align 3; .previous");
# endif /* MODULE */
#endif
int module_trampoline_target(struct module *mod, unsigned long trampoline,
unsigned long *target);
#ifdef CONFIG_DYNAMIC_FTRACE
int module_finalize_ftrace(struct module *mod, const Elf_Shdr *sechdrs);
#else
static inline int module_finalize_ftrace(struct module *mod, const Elf_Shdr *sechdrs)

32
arch/powerpc/include/asm/nohash/32/hugetlb-8xx.h
View File

@ -13,13 +13,13 @@ static inline pte_t *hugepd_page(hugepd_t hpd)
static inline unsigned int hugepd_shift(hugepd_t hpd)
{
return ((hpd_val(hpd) & _PMD_PAGE_MASK) >> 1) + 17;
return PAGE_SHIFT_8M;
}
static inline pte_t *hugepte_offset(hugepd_t hpd, unsigned long addr,
unsigned int pdshift)
{
unsigned long idx = (addr & ((1UL << pdshift) - 1)) >> PAGE_SHIFT;
unsigned long idx = (addr & (SZ_4M - 1)) >> PAGE_SHIFT;
return hugepd_page(hpd) + idx;
}
@ -32,8 +32,12 @@ static inline void flush_hugetlb_page(struct vm_area_struct *vma,
static inline void hugepd_populate(hugepd_t *hpdp, pte_t *new, unsigned int pshift)
{
*hpdp = __hugepd(__pa(new) | _PMD_USER | _PMD_PRESENT |
(pshift == PAGE_SHIFT_8M ? _PMD_PAGE_8M : _PMD_PAGE_512K));
*hpdp = __hugepd(__pa(new) | _PMD_USER | _PMD_PRESENT | _PMD_PAGE_8M);
}
static inline void hugepd_populate_kernel(hugepd_t *hpdp, pte_t *new, unsigned int pshift)
{
*hpdp = __hugepd(__pa(new) | _PMD_PRESENT | _PMD_PAGE_8M);
}
static inline int check_and_get_huge_psize(int shift)
@ -41,4 +45,24 @@ static inline int check_and_get_huge_psize(int shift)
return shift_to_mmu_psize(shift);
}
#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte);
#define __HAVE_ARCH_HUGE_PTE_CLEAR
static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, unsigned long sz)
{
pte_update(mm, addr, ptep, ~0UL, 0, 1);
}
#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
unsigned long clr = ~pte_val(pte_wrprotect(__pte(~0)));
unsigned long set = pte_val(pte_wrprotect(__pte(0)));
pte_update(mm, addr, ptep, clr, set, 1);
}
#endif /* _ASM_POWERPC_NOHASH_32_HUGETLB_8XX_H */

90
arch/powerpc/include/asm/nohash/32/mmu-8xx.h
View File

@ -19,7 +19,6 @@
#define MI_RSV4I 0x08000000 /* Reserve 4 TLB entries */
#define MI_PPCS 0x02000000 /* Use MI_RPN prob/priv state */
#define MI_IDXMASK 0x00001f00 /* TLB index to be loaded */
#define MI_RESETVAL 0x00000000 /* Value of register at reset */
/* These are the Ks and Kp from the PowerPC books. For proper operation,
* Ks = 0, Kp = 1.
@ -37,16 +36,16 @@
* Therefore, we define 2 APG groups. lsb is _PMD_USER
* 0 => Kernel => 01 (all accesses performed according to page definition)
* 1 => User => 00 (all accesses performed as supervisor iaw page definition)
* 2-16 => NA => 11 (all accesses performed as user iaw page definition)
* 2-15 => Not Used
*/
#define MI_APG_INIT 0x4fffffff
#define MI_APG_INIT 0x40000000
/*
* 0 => Kernel => 01 (all accesses performed according to page definition)
* 1 => User => 10 (all accesses performed according to swaped page definition)
* 2-16 => NA => 11 (all accesses performed as user iaw page definition)
* 2-15 => Not Used
*/
#define MI_APG_KUEP 0x6fffffff
#define MI_APG_KUEP 0x60000000
/* The effective page number register. When read, contains the information
* about the last instruction TLB miss. When MI_RPN is written, bits in
@ -95,7 +94,6 @@
#define MD_TWAM 0x04000000 /* Use 4K page hardware assist */
#define MD_PPCS 0x02000000 /* Use MI_RPN prob/priv state */
#define MD_IDXMASK 0x00001f00 /* TLB index to be loaded */
#define MD_RESETVAL 0x04000000 /* Value of register at reset */
#define SPRN_M_CASID 793 /* Address space ID (context) to match */
#define MC_ASIDMASK 0x0000000f /* Bits used for ASID value */
@ -117,16 +115,16 @@
* Therefore, we define 2 APG groups. lsb is _PMD_USER
* 0 => Kernel => 01 (all accesses performed according to page definition)
* 1 => User => 00 (all accesses performed as supervisor iaw page definition)
* 2-16 => NA => 11 (all accesses performed as user iaw page definition)
* 2-15 => Not Used
*/
#define MD_APG_INIT 0x4fffffff
#define MD_APG_INIT 0x40000000
/*
* 0 => No user => 01 (all accesses performed according to page definition)
* 1 => User => 10 (all accesses performed according to swaped page definition)
* 2-16 => NA => 11 (all accesses performed as user iaw page definition)
* 2-15 => Not Used
*/
#define MD_APG_KUAP 0x6fffffff
#define MD_APG_KUAP 0x60000000
/* The effective page number register. When read, contains the information
* about the last instruction TLB miss. When MD_RPN is written, bits in
@ -178,12 +176,6 @@
*/
#define SPRN_M_TW 799
#ifdef CONFIG_PPC_MM_SLICES
#include <asm/nohash/32/slice.h>
#define SLICE_ARRAY_SIZE (1 << (32 - SLICE_LOW_SHIFT - 1))
#define LOW_SLICE_ARRAY_SZ SLICE_ARRAY_SIZE
#endif
#if defined(CONFIG_PPC_4K_PAGES)
#define mmu_virtual_psize MMU_PAGE_4K
#elif defined(CONFIG_PPC_16K_PAGES)
@ -201,71 +193,15 @@
#include <linux/mmdebug.h>
struct slice_mask {
u64 low_slices;
DECLARE_BITMAP(high_slices, 0);
};
void mmu_pin_tlb(unsigned long top, bool readonly);
typedef struct {
unsigned int id;
unsigned int active;
unsigned long vdso_base;
#ifdef CONFIG_PPC_MM_SLICES
u16 user_psize; /* page size index */
unsigned char low_slices_psize[SLICE_ARRAY_SIZE];
unsigned char high_slices_psize[0];
unsigned long slb_addr_limit;
struct slice_mask mask_base_psize; /* 4k or 16k */
struct slice_mask mask_512k;
struct slice_mask mask_8m;
#endif
void *pte_frag;
} mm_context_t;
#ifdef CONFIG_PPC_MM_SLICES
static inline u16 mm_ctx_user_psize(mm_context_t *ctx)
{
return ctx->user_psize;
}
static inline void mm_ctx_set_user_psize(mm_context_t *ctx, u16 user_psize)
{
ctx->user_psize = user_psize;
}
static inline unsigned char *mm_ctx_low_slices(mm_context_t *ctx)
{
return ctx->low_slices_psize;
}
static inline unsigned char *mm_ctx_high_slices(mm_context_t *ctx)
{
return ctx->high_slices_psize;
}
static inline unsigned long mm_ctx_slb_addr_limit(mm_context_t *ctx)
{
return ctx->slb_addr_limit;
}
static inline void mm_ctx_set_slb_addr_limit(mm_context_t *ctx, unsigned long limit)
{
ctx->slb_addr_limit = limit;
}
static inline struct slice_mask *slice_mask_for_size(mm_context_t *ctx, int psize)
{
if (psize == MMU_PAGE_512K)
return &ctx->mask_512k;
if (psize == MMU_PAGE_8M)
return &ctx->mask_8m;
BUG_ON(psize != mmu_virtual_psize);
return &ctx->mask_base_psize;
}
#endif /* CONFIG_PPC_MM_SLICE */
#define PHYS_IMMR_BASE (mfspr(SPRN_IMMR) & 0xfff80000)
#define VIRT_IMMR_BASE (__fix_to_virt(FIX_IMMR_BASE))
@ -304,13 +240,7 @@ static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize)
}
/* patch sites */
extern s32 patch__itlbmiss_linmem_top, patch__itlbmiss_linmem_top8;
extern s32 patch__dtlbmiss_linmem_top, patch__dtlbmiss_immr_jmp;
extern s32 patch__fixupdar_linmem_top;
extern s32 patch__dtlbmiss_romem_top, patch__dtlbmiss_romem_top8;
extern s32 patch__itlbmiss_exit_1, patch__itlbmiss_exit_2;
extern s32 patch__dtlbmiss_exit_1, patch__dtlbmiss_exit_2, patch__dtlbmiss_exit_3;
extern s32 patch__itlbmiss_exit_1, patch__dtlbmiss_exit_1;
extern s32 patch__itlbmiss_perf, patch__dtlbmiss_perf;
#endif /* !__ASSEMBLY__ */

118
arch/powerpc/include/asm/nohash/32/pgtable.h
View File

@ -8,7 +8,6 @@
#include <linux/sched.h>
#include <linux/threads.h>
#include <asm/mmu.h> /* For sub-arch specific PPC_PIN_SIZE */
#include <asm/asm-405.h>
#ifdef CONFIG_44x
extern int icache_44x_need_flush;
@ -109,13 +108,13 @@ int map_kernel_page(unsigned long va, phys_addr_t pa, pgprot_t prot);
*/
#define VMALLOC_OFFSET (0x1000000) /* 16M */
#ifdef PPC_PIN_SIZE
#define VMALLOC_START (((_ALIGN((long)high_memory, PPC_PIN_SIZE) + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1)))
#define VMALLOC_START (((ALIGN((long)high_memory, PPC_PIN_SIZE) + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1)))
#else
#define VMALLOC_START ((((long)high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1)))
#endif
#ifdef CONFIG_KASAN_VMALLOC
#define VMALLOC_END _ALIGN_DOWN(ioremap_bot, PAGE_SIZE << KASAN_SHADOW_SCALE_SHIFT)
#define VMALLOC_END ALIGN_DOWN(ioremap_bot, PAGE_SIZE << KASAN_SHADOW_SCALE_SHIFT)
#else
#define VMALLOC_END ioremap_bot
#endif
@ -165,7 +164,7 @@ int map_kernel_page(unsigned long va, phys_addr_t pa, pgprot_t prot);
#ifndef __ASSEMBLY__
#define pte_clear(mm, addr, ptep) \
do { pte_update(ptep, ~0, 0); } while (0)
do { pte_update(mm, addr, ptep, ~0, 0, 0); } while (0)
#ifndef pte_mkwrite
static inline pte_t pte_mkwrite(pte_t pte)
@ -205,6 +204,12 @@ static inline void pmd_clear(pmd_t *pmdp)
}
/* to find an entry in a kernel page-table-directory */
#define pgd_offset_k(address) pgd_offset(&init_mm, address)
/* to find an entry in a page-table-directory */
#define pgd_index(address) ((address) >> PGDIR_SHIFT)
#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
/*
* PTE updates. This function is called whenever an existing
@ -220,66 +225,42 @@ static inline void pmd_clear(pmd_t *pmdp)
* that an executable user mapping was modified, which is needed
* to properly flush the virtually tagged instruction cache of
* those implementations.
*
* On the 8xx, the page tables are a bit special. For 16k pages, we have
* 4 identical entries. For 512k pages, we have 128 entries as if it was
* 4k pages, but they are flagged as 512k pages for the hardware.
* For other page sizes, we have a single entry in the table.
*/
#ifndef CONFIG_PTE_64BIT
static inline unsigned long pte_update(pte_t *p,
unsigned long clr,
unsigned long set)
#ifdef CONFIG_PPC_8xx
static inline pte_basic_t pte_update(struct mm_struct *mm, unsigned long addr, pte_t *p,
unsigned long clr, unsigned long set, int huge)
{
#ifdef PTE_ATOMIC_UPDATES
unsigned long old, tmp;
pte_basic_t *entry = &p->pte;
pte_basic_t old = pte_val(*p);
pte_basic_t new = (old & ~(pte_basic_t)clr) | set;
int num, i;
pmd_t *pmd = pmd_offset(pud_offset(p4d_offset(pgd_offset(mm, addr), addr), addr), addr);
__asm__ __volatile__("\
1: lwarx %0,0,%3\n\
andc %1,%0,%4\n\
or %1,%1,%5\n"
PPC405_ERR77(0,%3)
" stwcx. %1,0,%3\n\
bne- 1b"
: "=&r" (old), "=&r" (tmp), "=m" (*p)
: "r" (p), "r" (clr), "r" (set), "m" (*p)
: "cc" );
#else /* PTE_ATOMIC_UPDATES */
unsigned long old = pte_val(*p);
unsigned long new = (old & ~clr) | set;
if (!huge)
num = PAGE_SIZE / SZ_4K;
else if ((pmd_val(*pmd) & _PMD_PAGE_MASK) != _PMD_PAGE_8M)
num = SZ_512K / SZ_4K;
else
num = 1;
#if defined(CONFIG_PPC_8xx) && defined(CONFIG_PPC_16K_PAGES)
p->pte = p->pte1 = p->pte2 = p->pte3 = new;
for (i = 0; i < num; i++, entry++, new += SZ_4K)
*entry = new;
return old;
}
#else
*p = __pte(new);
#endif
#endif /* !PTE_ATOMIC_UPDATES */
#ifdef CONFIG_44x
if ((old & _PAGE_USER) && (old & _PAGE_EXEC))
icache_44x_need_flush = 1;
#endif
return old;
}
#else /* CONFIG_PTE_64BIT */
static inline unsigned long long pte_update(pte_t *p,
unsigned long clr,
unsigned long set)
static inline pte_basic_t pte_update(struct mm_struct *mm, unsigned long addr, pte_t *p,
unsigned long clr, unsigned long set, int huge)
{
#ifdef PTE_ATOMIC_UPDATES
unsigned long long old;
unsigned long tmp;
pte_basic_t old = pte_val(*p);
pte_basic_t new = (old & ~(pte_basic_t)clr) | set;
__asm__ __volatile__("\
1: lwarx %L0,0,%4\n\
lwzx %0,0,%3\n\
andc %1,%L0,%5\n\
or %1,%1,%6\n"
PPC405_ERR77(0,%3)
" stwcx. %1,0,%4\n\
bne- 1b"
: "=&r" (old), "=&r" (tmp), "=m" (*p)
: "r" (p), "r" ((unsigned long)(p) + 4), "r" (clr), "r" (set), "m" (*p)
: "cc" );
#else /* PTE_ATOMIC_UPDATES */
unsigned long long old = pte_val(*p);
*p = __pte((old & ~(unsigned long long)clr) | set);
#endif /* !PTE_ATOMIC_UPDATES */
*p = __pte(new);
#ifdef CONFIG_44x
if ((old & _PAGE_USER) && (old & _PAGE_EXEC))
@ -287,23 +268,24 @@ static inline unsigned long long pte_update(pte_t *p,
#endif
return old;
}
#endif /* CONFIG_PTE_64BIT */
#endif
#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
static inline int __ptep_test_and_clear_young(unsigned int context, unsigned long addr, pte_t *ptep)
static inline int __ptep_test_and_clear_young(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
unsigned long old;
old = pte_update(ptep, _PAGE_ACCESSED, 0);
old = pte_update(mm, addr, ptep, _PAGE_ACCESSED, 0, 0);
return (old & _PAGE_ACCESSED) != 0;
}
#define ptep_test_and_clear_young(__vma, __addr, __ptep) \
__ptep_test_and_clear_young((__vma)->vm_mm->context.id, __addr, __ptep)
__ptep_test_and_clear_young((__vma)->vm_mm, __addr, __ptep)
#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep)
{
return __pte(pte_update(ptep, ~0, 0));
return __pte(pte_update(mm, addr, ptep, ~0, 0, 0));
}
#define __HAVE_ARCH_PTEP_SET_WRPROTECT
@ -313,7 +295,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
unsigned long clr = ~pte_val(pte_wrprotect(__pte(~0)));
unsigned long set = pte_val(pte_wrprotect(__pte(0)));
pte_update(ptep, clr, set);
pte_update(mm, addr, ptep, clr, set, 0);
}
static inline void __ptep_set_access_flags(struct vm_area_struct *vma,
@ -325,8 +307,9 @@ static inline void __ptep_set_access_flags(struct vm_area_struct *vma,
pte_t pte_clr = pte_mkyoung(pte_mkdirty(pte_mkwrite(pte_mkexec(__pte(~0)))));
unsigned long set = pte_val(entry) & pte_val(pte_set);
unsigned long clr = ~pte_val(entry) & ~pte_val(pte_clr);
int huge = psize > mmu_virtual_psize ? 1 : 0;
pte_update(ptep, clr, set);
pte_update(vma->vm_mm, address, ptep, clr, set, huge);
flush_tlb_page(vma, address);
}
@ -358,13 +341,6 @@ static inline int pte_young(pte_t pte)
pfn_to_page((__pa(pmd_val(pmd)) >> PAGE_SHIFT))
#endif
/* to find an entry in a kernel page-table-directory */
#define pgd_offset_k(address) pgd_offset(&init_mm, address)
/* to find an entry in a page-table-directory */
#define pgd_index(address) ((address) >> PGDIR_SHIFT)
#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
/* Find an entry in the third-level page table.. */
#define pte_index(address) \
(((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))

23
arch/powerpc/include/asm/nohash/32/pte-40x.h
View File

@ -44,9 +44,8 @@
#define _PAGE_WRITETHRU 0x008 /* W: caching is write-through */
#define _PAGE_USER 0x010 /* matches one of the zone permission bits */
#define _PAGE_SPECIAL 0x020 /* software: Special page */
#define _PAGE_RW 0x040 /* software: Writes permitted */
#define _PAGE_DIRTY 0x080 /* software: dirty page */
#define _PAGE_HWWRITE 0x100 /* hardware: Dirty & RW, set in exception */
#define _PAGE_RW 0x100 /* hardware: WR, anded with dirty in exception */
#define _PAGE_EXEC 0x200 /* hardware: EX permission */
#define _PAGE_ACCESSED 0x400 /* software: R: page referenced */
@ -58,8 +57,8 @@
#define _PAGE_KERNEL_RO 0
#define _PAGE_KERNEL_ROX _PAGE_EXEC
#define _PAGE_KERNEL_RW (_PAGE_DIRTY | _PAGE_RW | _PAGE_HWWRITE)
#define _PAGE_KERNEL_RWX (_PAGE_DIRTY | _PAGE_RW | _PAGE_HWWRITE | _PAGE_EXEC)
#define _PAGE_KERNEL_RW (_PAGE_DIRTY | _PAGE_RW)
#define _PAGE_KERNEL_RWX (_PAGE_DIRTY | _PAGE_RW | _PAGE_EXEC)
#define _PMD_PRESENT 0x400 /* PMD points to page of PTEs */
#define _PMD_PRESENT_MASK _PMD_PRESENT
@ -85,21 +84,5 @@
#define PAGE_READONLY __pgprot(_PAGE_BASE | _PAGE_USER)
#define PAGE_READONLY_X __pgprot(_PAGE_BASE | _PAGE_USER | _PAGE_EXEC)
#ifndef __ASSEMBLY__
static inline pte_t pte_wrprotect(pte_t pte)
{
return __pte(pte_val(pte) & ~(_PAGE_RW | _PAGE_HWWRITE));
}
#define pte_wrprotect pte_wrprotect
static inline pte_t pte_mkclean(pte_t pte)
{
return __pte(pte_val(pte) & ~(_PAGE_DIRTY | _PAGE_HWWRITE));
}
#define pte_mkclean pte_mkclean
#endif
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_NOHASH_32_PTE_40x_H */

4
arch/powerpc/include/asm/nohash/32/pte-8xx.h
View File

@ -46,6 +46,8 @@
#define _PAGE_NA 0x0200 /* Supervisor NA, User no access */
#define _PAGE_RO 0x0600 /* Supervisor RO, User no access */
#define _PAGE_HUGE 0x0800 /* Copied to L1 PS bit 29 */
/* cache related flags non existing on 8xx */
#define _PAGE_COHERENT 0
#define _PAGE_WRITETHRU 0
@ -128,7 +130,7 @@ static inline pte_t pte_mkuser(pte_t pte)
static inline pte_t pte_mkhuge(pte_t pte)
{
return __pte(pte_val(pte) | _PAGE_SPS);
return __pte(pte_val(pte) | _PAGE_SPS | _PAGE_HUGE);
}
#define pte_mkhuge pte_mkhuge

20
arch/powerpc/include/asm/nohash/32/slice.h
View File

@ -1,20 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_POWERPC_NOHASH_32_SLICE_H
#define _ASM_POWERPC_NOHASH_32_SLICE_H
#ifdef CONFIG_PPC_MM_SLICES
#define SLICE_LOW_SHIFT 26 /* 64 slices */
#define SLICE_LOW_TOP (0x100000000ull)
#define SLICE_NUM_LOW (SLICE_LOW_TOP >> SLICE_LOW_SHIFT)
#define GET_LOW_SLICE_INDEX(addr) ((addr) >> SLICE_LOW_SHIFT)
#define SLICE_HIGH_SHIFT 0
#define SLICE_NUM_HIGH 0ul
#define GET_HIGH_SLICE_INDEX(addr) (addr & 0)
#define SLB_ADDR_LIMIT_DEFAULT DEFAULT_MAP_WINDOW
#endif /* CONFIG_PPC_MM_SLICES */
#endif /* _ASM_POWERPC_NOHASH_32_SLICE_H */

28
arch/powerpc/include/asm/nohash/64/pgtable.h
View File

@ -211,22 +211,9 @@ static inline unsigned long pte_update(struct mm_struct *mm,
unsigned long set,
int huge)
{
#ifdef PTE_ATOMIC_UPDATES
unsigned long old, tmp;
__asm__ __volatile__(
"1: ldarx %0,0,%3 # pte_update\n\
andc %1,%0,%4 \n\
or %1,%1,%6\n\
stdcx. %1,0,%3 \n\
bne- 1b"
: "=&r" (old), "=&r" (tmp), "=m" (*ptep)
: "r" (ptep), "r" (clr), "m" (*ptep), "r" (set)
: "cc" );
#else
unsigned long old = pte_val(*ptep);
*ptep = __pte((old & ~clr) | set);
#endif
/* huge pages use the old page table lock */
if (!huge)
assert_pte_locked(mm, addr);
@ -310,21 +297,8 @@ static inline void __ptep_set_access_flags(struct vm_area_struct *vma,
unsigned long bits = pte_val(entry) &
(_PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_RW | _PAGE_EXEC);
#ifdef PTE_ATOMIC_UPDATES
unsigned long old, tmp;
__asm__ __volatile__(
"1: ldarx %0,0,%4\n\
or %0,%3,%0\n\
stdcx. %0,0,%4\n\
bne- 1b"
:"=&r" (old), "=&r" (tmp), "=m" (*ptep)
:"r" (bits), "r" (ptep), "m" (*ptep)
:"cc");
#else
unsigned long old = pte_val(*ptep);
*ptep = __pte(old | bits);
#endif
flush_tlb_page(vma, address);
}

4
arch/powerpc/include/asm/nohash/pgtable.h
View File

@ -130,12 +130,10 @@ static inline pte_t pte_exprotect(pte_t pte)
return __pte(pte_val(pte) & ~_PAGE_EXEC);
}
#ifndef pte_mkclean
static inline pte_t pte_mkclean(pte_t pte)
{
return __pte(pte_val(pte) & ~_PAGE_DIRTY);
}
#endif
static inline pte_t pte_mkold(pte_t pte)
{
@ -267,7 +265,7 @@ extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
static inline int hugepd_ok(hugepd_t hpd)
{
#ifdef CONFIG_PPC_8xx
return ((hpd_val(hpd) & 0x4) != 0);
return ((hpd_val(hpd) & _PMD_PAGE_MASK) == _PMD_PAGE_8M);
#else
/* We clear the top bit to indicate hugepd */
return (hpd_val(hpd) && (hpd_val(hpd) & PD_HUGE) == 0);

2
arch/powerpc/include/asm/paca.h
View File

@ -29,6 +29,7 @@
#include <asm/hmi.h>
#include <asm/cpuidle.h>
#include <asm/atomic.h>
#include <asm/rtas-types.h>
#include <asm-generic/mmiowb_types.h>
@ -256,6 +257,7 @@ struct paca_struct {
u64 l1d_flush_size;
#endif
#ifdef CONFIG_PPC_PSERIES
struct rtas_args *rtas_args_reentrant;
u8 *mce_data_buf; /* buffer to hold per cpu rtas errlog */
#endif /* CONFIG_PPC_PSERIES */

7
arch/powerpc/include/asm/page.h
View File

@ -249,13 +249,6 @@ static inline bool pfn_valid(unsigned long pfn)
#include <asm/page_32.h>
#endif
/* align addr on a size boundary - adjust address up/down if needed */
#define _ALIGN_UP(addr, size) __ALIGN_KERNEL(addr, size)
#define _ALIGN_DOWN(addr, size) ((addr)&(~((typeof(addr))(size)-1)))
/* align addr on a size boundary - adjust address up if needed */
#define _ALIGN(addr,size) _ALIGN_UP(addr,size)
/*
* Don't compare things with KERNELBASE or PAGE_OFFSET to test for
* "kernelness", use is_kernel_addr() - it should do what you want.

2
arch/powerpc/include/asm/pgtable.h
View File

@ -107,6 +107,8 @@ unsigned long vmalloc_to_phys(void *vmalloc_addr);
void pgtable_cache_add(unsigned int shift);
pte_t *early_pte_alloc_kernel(pmd_t *pmdp, unsigned long va);
#if defined(CONFIG_STRICT_KERNEL_RWX) || defined(CONFIG_PPC32)
void mark_initmem_nx(void);
#else

3
arch/powerpc/include/asm/ppc-opcode.h
View File

@ -158,6 +158,9 @@
/* VMX Vector Store Instructions */
#define OP_31_XOP_STVX 231
/* Prefixed Instructions */
#define OP_PREFIX 1
#define OP_31 31
#define OP_LWZ 32
#define OP_STFS 52

11
arch/powerpc/include/asm/processor.h
View File

@ -180,14 +180,14 @@ struct thread_struct {
int fpexc_mode; /* floating-point exception mode */
unsigned int align_ctl; /* alignment handling control */
#ifdef CONFIG_HAVE_HW_BREAKPOINT
struct perf_event *ptrace_bps[HBP_NUM];
struct perf_event *ptrace_bps[HBP_NUM_MAX];
/*
* Helps identify source of single-step exception and subsequent
* hw-breakpoint enablement
*/
struct perf_event *last_hit_ubp;
struct perf_event *last_hit_ubp[HBP_NUM_MAX];
#endif /* CONFIG_HAVE_HW_BREAKPOINT */
struct arch_hw_breakpoint hw_brk; /* info on the hardware breakpoint */
struct arch_hw_breakpoint hw_brk[HBP_NUM_MAX]; /* hardware breakpoint info */
unsigned long trap_nr; /* last trap # on this thread */
u8 load_slb; /* Ages out SLB preload cache entries */
u8 load_fp;
@ -272,7 +272,6 @@ struct thread_struct {
unsigned mmcr0;
unsigned used_ebb;
unsigned int used_vas;
#endif
};
@ -301,14 +300,12 @@ struct thread_struct {
#else
#define INIT_THREAD { \
.ksp = INIT_SP, \
.regs = (struct pt_regs *)INIT_SP - 1, /* XXX bogus, I think */ \
.addr_limit = KERNEL_DS, \
.fpexc_mode = 0, \
.fscr = FSCR_TAR | FSCR_EBB \
}
#endif
#define task_pt_regs(tsk) ((struct pt_regs *)(tsk)->thread.regs)
#define task_pt_regs(tsk) ((tsk)->thread.regs)
unsigned long get_wchan(struct task_struct *p);

1
arch/powerpc/include/asm/prom.h
View File

@ -117,6 +117,7 @@ extern int of_read_drc_info_cell(struct property **prop,
#define OV1_PPC_2_07 0x01 /* set if we support PowerPC 2.07 */
#define OV1_PPC_3_00 0x80 /* set if we support PowerPC 3.00 */
#define OV1_PPC_3_1 0x40 /* set if we support PowerPC 3.1 */
/* Option vector 2: Open Firmware options supported */
#define OV2_REAL_MODE 0x20 /* set if we want OF in real mode */

46
arch/powerpc/include/asm/ptrace.h
View File

@ -179,6 +179,22 @@ extern int ptrace_put_reg(struct task_struct *task, int regno,
#define current_pt_regs() \
((struct pt_regs *)((unsigned long)task_stack_page(current) + THREAD_SIZE) - 1)
#ifdef __powerpc64__
#ifdef CONFIG_PPC_BOOK3S
#define TRAP_FLAGS_MASK 0x10
#define TRAP(regs) ((regs)->trap & ~TRAP_FLAGS_MASK)
#define FULL_REGS(regs) true
#define SET_FULL_REGS(regs) do { } while (0)
#else
#define TRAP_FLAGS_MASK 0x11
#define TRAP(regs) ((regs)->trap & ~TRAP_FLAGS_MASK)
#define FULL_REGS(regs) (((regs)->trap & 1) == 0)
#define SET_FULL_REGS(regs) ((regs)->trap |= 1)
#endif
#define CHECK_FULL_REGS(regs) BUG_ON(!FULL_REGS(regs))
#define NV_REG_POISON 0xdeadbeefdeadbeefUL
#else
/*
* We use the least-significant bit of the trap field to indicate
* whether we have saved the full set of registers, or only a
@ -186,17 +202,13 @@ extern int ptrace_put_reg(struct task_struct *task, int regno,
* On 4xx we use the next bit to indicate whether the exception
* is a critical exception (1 means it is).
*/
#define TRAP_FLAGS_MASK 0x1F
#define TRAP(regs) ((regs)->trap & ~TRAP_FLAGS_MASK)
#define FULL_REGS(regs) (((regs)->trap & 1) == 0)
#ifndef __powerpc64__
#define SET_FULL_REGS(regs) ((regs)->trap |= 1)
#define IS_CRITICAL_EXC(regs) (((regs)->trap & 2) != 0)
#define IS_MCHECK_EXC(regs) (((regs)->trap & 4) != 0)
#define IS_DEBUG_EXC(regs) (((regs)->trap & 8) != 0)
#endif /* ! __powerpc64__ */
#define TRAP(regs) ((regs)->trap & ~0xF)
#ifdef __powerpc64__
#define NV_REG_POISON 0xdeadbeefdeadbeefUL
#define CHECK_FULL_REGS(regs) BUG_ON(regs->trap & 1)
#else
#define NV_REG_POISON 0xdeadbeef
#define CHECK_FULL_REGS(regs) \
do { \
@ -205,6 +217,26 @@ do { \
} while (0)
#endif /* __powerpc64__ */
static inline void set_trap(struct pt_regs *regs, unsigned long val)
{
regs->trap = (regs->trap & TRAP_FLAGS_MASK) | (val & ~TRAP_FLAGS_MASK);
}
static inline bool trap_is_syscall(struct pt_regs *regs)
{
return TRAP(regs) == 0xc00;
}
static inline bool trap_norestart(struct pt_regs *regs)
{
return regs->trap & 0x10;
}
static inline void set_trap_norestart(struct pt_regs *regs)
{
regs->trap |= 0x10;
}
#define arch_has_single_step() (1)
#ifndef CONFIG_BOOK3S_601
#define arch_has_block_step() (true)

19
arch/powerpc/include/asm/reg.h
View File

@ -283,14 +283,16 @@
#define CTRL_CT1 0x40000000 /* thread 1 */
#define CTRL_TE 0x00c00000 /* thread enable */
#define CTRL_RUNLATCH 0x1
#define SPRN_DAWR 0xB4
#define SPRN_DAWR0 0xB4
#define SPRN_DAWR1 0xB5
#define SPRN_RPR 0xBA /* Relative Priority Register */
#define SPRN_CIABR 0xBB
#define CIABR_PRIV 0x3
#define CIABR_PRIV_USER 1
#define CIABR_PRIV_SUPER 2
#define CIABR_PRIV_HYPER 3
#define SPRN_DAWRX 0xBC
#define SPRN_DAWRX0 0xBC
#define SPRN_DAWRX1 0xBD
#define DAWRX_USER __MASK(0)
#define DAWRX_KERNEL __MASK(1)
#define DAWRX_HYP __MASK(2)
@ -397,6 +399,7 @@
#define SPRN_RWMR 0x375 /* Region-Weighting Mode Register */
/* HFSCR and FSCR bit numbers are the same */
#define FSCR_PREFIX_LG 13 /* Enable Prefix Instructions */
#define FSCR_SCV_LG 12 /* Enable System Call Vectored */
#define FSCR_MSGP_LG 10 /* Enable MSGP */
#define FSCR_TAR_LG 8 /* Enable Target Address Register */
@ -408,11 +411,13 @@
#define FSCR_VECVSX_LG 1 /* Enable VMX/VSX */
#define FSCR_FP_LG 0 /* Enable Floating Point */
#define SPRN_FSCR 0x099 /* Facility Status & Control Register */
#define FSCR_PREFIX __MASK(FSCR_PREFIX_LG)
#define FSCR_SCV __MASK(FSCR_SCV_LG)
#define FSCR_TAR __MASK(FSCR_TAR_LG)
#define FSCR_EBB __MASK(FSCR_EBB_LG)
#define FSCR_DSCR __MASK(FSCR_DSCR_LG)
#define SPRN_HFSCR 0xbe /* HV=1 Facility Status & Control Register */
#define HFSCR_PREFIX __MASK(FSCR_PREFIX_LG)
#define HFSCR_MSGP __MASK(FSCR_MSGP_LG)
#define HFSCR_TAR __MASK(FSCR_TAR_LG)
#define HFSCR_EBB __MASK(FSCR_EBB_LG)
@ -476,16 +481,18 @@
#define PCR_VEC_DIS (__MASK(63-0)) /* Vec. disable (bit NA since POWER8) */
#define PCR_VSX_DIS (__MASK(63-1)) /* VSX disable (bit NA since POWER8) */
#define PCR_TM_DIS (__MASK(63-2)) /* Trans. memory disable (POWER8) */
#define PCR_HIGH_BITS (PCR_VEC_DIS | PCR_VSX_DIS | PCR_TM_DIS)
#define PCR_MMA_DIS (__MASK(63-3)) /* Matrix-Multiply Accelerator */
#define PCR_HIGH_BITS (PCR_MMA_DIS | PCR_VEC_DIS | PCR_VSX_DIS | PCR_TM_DIS)
/*
* These bits are used in the function kvmppc_set_arch_compat() to specify and
* determine both the compatibility level which we want to emulate and the
* compatibility level which the host is capable of emulating.
*/
#define PCR_ARCH_300 0x10 /* Architecture 3.00 */
#define PCR_ARCH_207 0x8 /* Architecture 2.07 */
#define PCR_ARCH_206 0x4 /* Architecture 2.06 */
#define PCR_ARCH_205 0x2 /* Architecture 2.05 */
#define PCR_LOW_BITS (PCR_ARCH_207 | PCR_ARCH_206 | PCR_ARCH_205)
#define PCR_LOW_BITS (PCR_ARCH_207 | PCR_ARCH_206 | PCR_ARCH_205 | PCR_ARCH_300)
#define PCR_MASK ~(PCR_HIGH_BITS | PCR_LOW_BITS) /* PCR Reserved Bits */
#define SPRN_HEIR 0x153 /* Hypervisor Emulated Instruction Register */
#define SPRN_TLBINDEXR 0x154 /* P7 TLB control register */
@ -759,7 +766,7 @@
#endif
#define SRR1_ISI_NOPT 0x40000000 /* ISI: Not found in hash */
#define SRR1_ISI_N_OR_G 0x10000000 /* ISI: Access is no-exec or G */
#define SRR1_ISI_N_G_OR_CIP 0x10000000 /* ISI: Access is no-exec or G or CI for a prefixed instruction */
#define SRR1_ISI_PROT 0x08000000 /* ISI: Other protection fault */
#define SRR1_WAKEMASK 0x00380000 /* reason for wakeup */
#define SRR1_WAKEMASK_P8 0x003c0000 /* reason for wakeup on POWER8 and 9 */
@ -786,6 +793,8 @@
#define SRR1_PROGADDR 0x00010000 /* SRR0 contains subsequent addr */
#define SRR1_MCE_MCP 0x00080000 /* Machine check signal caused interrupt */
#define SRR1_BOUNDARY 0x10000000 /* Prefixed instruction crosses 64-byte boundary */
#define SRR1_PREFIXED 0x20000000 /* Exception caused by prefixed instruction */
#define SPRN_HSRR0 0x13A /* Save/Restore Register 0 */
#define SPRN_HSRR1 0x13B /* Save/Restore Register 1 */

54
arch/powerpc/include/asm/reg_booke.h
View File

@ -663,60 +663,6 @@
#define EPC_EPID 0x00003fff
#define EPC_EPID_SHIFT 0
/*
* The IBM-403 is an even more odd special case, as it is much
* older than the IBM-405 series. We put these down here incase someone
* wishes to support these machines again.
*/
#ifdef CONFIG_403GCX
/* Special Purpose Registers (SPRNs)*/
#define SPRN_TBHU 0x3CC /* Time Base High User-mode */
#define SPRN_TBLU 0x3CD /* Time Base Low User-mode */
#define SPRN_CDBCR 0x3D7 /* Cache Debug Control Register */
#define SPRN_TBHI 0x3DC /* Time Base High */
#define SPRN_TBLO 0x3DD /* Time Base Low */
#define SPRN_DBCR 0x3F2 /* Debug Control Register */
#define SPRN_PBL1 0x3FC /* Protection Bound Lower 1 */
#define SPRN_PBL2 0x3FE /* Protection Bound Lower 2 */
#define SPRN_PBU1 0x3FD /* Protection Bound Upper 1 */
#define SPRN_PBU2 0x3FF /* Protection Bound Upper 2 */
/* Bit definitions for the DBCR. */
#define DBCR_EDM DBCR0_EDM
#define DBCR_IDM DBCR0_IDM
#define DBCR_RST(x) (((x) & 0x3) << 28)
#define DBCR_RST_NONE 0
#define DBCR_RST_CORE 1
#define DBCR_RST_CHIP 2
#define DBCR_RST_SYSTEM 3
#define DBCR_IC DBCR0_IC /* Instruction Completion Debug Evnt */
#define DBCR_BT DBCR0_BT /* Branch Taken Debug Event */
#define DBCR_EDE DBCR0_EDE /* Exception Debug Event */
#define DBCR_TDE DBCR0_TDE /* TRAP Debug Event */
#define DBCR_FER 0x00F80000 /* First Events Remaining Mask */
#define DBCR_FT 0x00040000 /* Freeze Timers on Debug Event */
#define DBCR_IA1 0x00020000 /* Instr. Addr. Compare 1 Enable */
#define DBCR_IA2 0x00010000 /* Instr. Addr. Compare 2 Enable */
#define DBCR_D1R 0x00008000 /* Data Addr. Compare 1 Read Enable */
#define DBCR_D1W 0x00004000 /* Data Addr. Compare 1 Write Enable */
#define DBCR_D1S(x) (((x) & 0x3) << 12) /* Data Adrr. Compare 1 Size */
#define DAC_BYTE 0
#define DAC_HALF 1
#define DAC_WORD 2
#define DAC_QUAD 3
#define DBCR_D2R 0x00000800 /* Data Addr. Compare 2 Read Enable */
#define DBCR_D2W 0x00000400 /* Data Addr. Compare 2 Write Enable */
#define DBCR_D2S(x) (((x) & 0x3) << 8) /* Data Addr. Compare 2 Size */
#define DBCR_SBT 0x00000040 /* Second Branch Taken Debug Event */
#define DBCR_SED 0x00000020 /* Second Exception Debug Event */
#define DBCR_STD 0x00000010 /* Second Trap Debug Event */
#define DBCR_SIA 0x00000008 /* Second IAC Enable */
#define DBCR_SDA 0x00000004 /* Second DAC Enable */
#define DBCR_JOI 0x00000002 /* JTAG Serial Outbound Int. Enable */
#define DBCR_JII 0x00000001 /* JTAG Serial Inbound Int. Enable */
#endif /* 403GCX */
/* Some 476 specific registers */
#define SPRN_SSPCR 830
#define SPRN_USPCR 831

124
arch/powerpc/include/asm/rtas-types.h Normal file
View File

@ -0,0 +1,124 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _ASM_POWERPC_RTAS_TYPES_H
#define _ASM_POWERPC_RTAS_TYPES_H
#include <linux/spinlock_types.h>
typedef __be32 rtas_arg_t;
struct rtas_args {
__be32 token;
__be32 nargs;
__be32 nret;
rtas_arg_t args[16];
rtas_arg_t *rets; /* Pointer to return values in args[]. */
};
struct rtas_t {
unsigned long entry; /* physical address pointer */
unsigned long base; /* physical address pointer */
unsigned long size;
arch_spinlock_t lock;
struct rtas_args args;
struct device_node *dev; /* virtual address pointer */
};
struct rtas_suspend_me_data {
atomic_t working; /* number of cpus accessing this struct */
atomic_t done;
int token; /* ibm,suspend-me */
atomic_t error;
struct completion *complete; /* wait on this until working == 0 */
};
struct rtas_error_log {
/* Byte 0 */
u8 byte0; /* Architectural version */
/* Byte 1 */
u8 byte1;
/* XXXXXXXX
* XXX 3: Severity level of error
* XX 2: Degree of recovery
* X 1: Extended log present?
* XX 2: Reserved
*/
/* Byte 2 */
u8 byte2;
/* XXXXXXXX
* XXXX 4: Initiator of event
* XXXX 4: Target of failed operation
*/
u8 byte3; /* General event or error*/
__be32 extended_log_length; /* length in bytes */
unsigned char buffer[1]; /* Start of extended log */
/* Variable length. */
};
/* RTAS general extended event log, Version 6. The extended log starts
* from "buffer" field of struct rtas_error_log defined above.
*/
struct rtas_ext_event_log_v6 {
/* Byte 0 */
u8 byte0;
/* XXXXXXXX
* X 1: Log valid
* X 1: Unrecoverable error
* X 1: Recoverable (correctable or successfully retried)
* X 1: Bypassed unrecoverable error (degraded operation)
* X 1: Predictive error
* X 1: "New" log (always 1 for data returned from RTAS)
* X 1: Big Endian
* X 1: Reserved
*/
/* Byte 1 */
u8 byte1; /* reserved */
/* Byte 2 */
u8 byte2;
/* XXXXXXXX
* X 1: Set to 1 (indicating log is in PowerPC format)
* XXX 3: Reserved
* XXXX 4: Log format used for bytes 12-2047
*/
/* Byte 3 */
u8 byte3; /* reserved */
/* Byte 4-11 */
u8 reserved[8]; /* reserved */
/* Byte 12-15 */
__be32 company_id; /* Company ID of the company */
/* that defines the format for */
/* the vendor specific log type */
/* Byte 16-end of log */
u8 vendor_log[1]; /* Start of vendor specific log */
/* Variable length. */
};
/* Vendor specific Platform Event Log Format, Version 6, section header */
struct pseries_errorlog {
__be16 id; /* 0x00 2-byte ASCII section ID */
__be16 length; /* 0x02 Section length in bytes */
u8 version; /* 0x04 Section version */
u8 subtype; /* 0x05 Section subtype */
__be16 creator_component; /* 0x06 Creator component ID */
u8 data[]; /* 0x08 Start of section data */
};
/* RTAS pseries hotplug errorlog section */
struct pseries_hp_errorlog {
u8 resource;
u8 action;
u8 id_type;
u8 reserved;
union {
__be32 drc_index;
__be32 drc_count;
struct { __be32 count, index; } ic;
char drc_name[1];
} _drc_u;
};
#endif /* _ASM_POWERPC_RTAS_TYPES_H */

125
arch/powerpc/include/asm/rtas.h
View File

@ -5,6 +5,7 @@
#include <linux/spinlock.h>
#include <asm/page.h>
#include <asm/rtas-types.h>
#include <linux/time.h>
#include <linux/cpumask.h>
@ -42,33 +43,6 @@
*
*/
typedef __be32 rtas_arg_t;
struct rtas_args {
__be32 token;
__be32 nargs;
__be32 nret;
rtas_arg_t args[16];
rtas_arg_t *rets; /* Pointer to return values in args[]. */
};
struct rtas_t {
unsigned long entry; /* physical address pointer */
unsigned long base; /* physical address pointer */
unsigned long size;
arch_spinlock_t lock;
struct rtas_args args;
struct device_node *dev; /* virtual address pointer */
};
struct rtas_suspend_me_data {
atomic_t working; /* number of cpus accessing this struct */
atomic_t done;
int token; /* ibm,suspend-me */
atomic_t error;
struct completion *complete; /* wait on this until working == 0 */
};
/* RTAS event classes */
#define RTAS_INTERNAL_ERROR 0x80000000 /* set bit 0 */
#define RTAS_EPOW_WARNING 0x40000000 /* set bit 1 */
@ -148,31 +122,6 @@ struct rtas_suspend_me_data {
/* RTAS check-exception vector offset */
#define RTAS_VECTOR_EXTERNAL_INTERRUPT 0x500
struct rtas_error_log {
/* Byte 0 */
uint8_t byte0; /* Architectural version */
/* Byte 1 */
uint8_t byte1;
/* XXXXXXXX
* XXX 3: Severity level of error
* XX 2: Degree of recovery
* X 1: Extended log present?
* XX 2: Reserved
*/
/* Byte 2 */
uint8_t byte2;
/* XXXXXXXX
* XXXX 4: Initiator of event
* XXXX 4: Target of failed operation
*/
uint8_t byte3; /* General event or error*/
__be32 extended_log_length; /* length in bytes */
unsigned char buffer[1]; /* Start of extended log */
/* Variable length. */
};
static inline uint8_t rtas_error_severity(const struct rtas_error_log *elog)
{
return (elog->byte1 & 0xE0) >> 5;
@ -212,47 +161,6 @@ uint32_t rtas_error_extended_log_length(const struct rtas_error_log *elog)
#define RTAS_V6EXT_COMPANY_ID_IBM (('I' << 24) | ('B' << 16) | ('M' << 8))
/* RTAS general extended event log, Version 6. The extended log starts
* from "buffer" field of struct rtas_error_log defined above.
*/
struct rtas_ext_event_log_v6 {
/* Byte 0 */
uint8_t byte0;
/* XXXXXXXX
* X 1: Log valid
* X 1: Unrecoverable error
* X 1: Recoverable (correctable or successfully retried)
* X 1: Bypassed unrecoverable error (degraded operation)
* X 1: Predictive error
* X 1: "New" log (always 1 for data returned from RTAS)
* X 1: Big Endian
* X 1: Reserved
*/
/* Byte 1 */
uint8_t byte1; /* reserved */
/* Byte 2 */
uint8_t byte2;
/* XXXXXXXX
* X 1: Set to 1 (indicating log is in PowerPC format)
* XXX 3: Reserved
* XXXX 4: Log format used for bytes 12-2047
*/
/* Byte 3 */
uint8_t byte3; /* reserved */
/* Byte 4-11 */
uint8_t reserved[8]; /* reserved */
/* Byte 12-15 */
__be32 company_id; /* Company ID of the company */
/* that defines the format for */
/* the vendor specific log type */
/* Byte 16-end of log */
uint8_t vendor_log[1]; /* Start of vendor specific log */
/* Variable length. */
};
static
inline uint8_t rtas_ext_event_log_format(struct rtas_ext_event_log_v6 *ext_log)
{
@ -287,16 +195,6 @@ inline uint32_t rtas_ext_event_company_id(struct rtas_ext_event_log_v6 *ext_log)
#define PSERIES_ELOG_SECT_ID_HOTPLUG (('H' << 8) | 'P')
#define PSERIES_ELOG_SECT_ID_MCE (('M' << 8) | 'C')
/* Vendor specific Platform Event Log Format, Version 6, section header */
struct pseries_errorlog {
__be16 id; /* 0x00 2-byte ASCII section ID */
__be16 length; /* 0x02 Section length in bytes */
uint8_t version; /* 0x04 Section version */
uint8_t subtype; /* 0x05 Section subtype */
__be16 creator_component; /* 0x06 Creator component ID */
uint8_t data[]; /* 0x08 Start of section data */
};
static
inline uint16_t pseries_errorlog_id(struct pseries_errorlog *sect)
{
@ -309,20 +207,6 @@ inline uint16_t pseries_errorlog_length(struct pseries_errorlog *sect)
return be16_to_cpu(sect->length);
}
/* RTAS pseries hotplug errorlog section */
struct pseries_hp_errorlog {
u8 resource;
u8 action;
u8 id_type;
u8 reserved;
union {
__be32 drc_index;
__be32 drc_count;
struct { __be32 count, index; } ic;
char drc_name[1];
} _drc_u;
};
#define PSERIES_HP_ELOG_RESOURCE_CPU 1
#define PSERIES_HP_ELOG_RESOURCE_MEM 2
#define PSERIES_HP_ELOG_RESOURCE_SLOT 3
@ -352,6 +236,7 @@ extern struct rtas_t rtas;
extern int rtas_token(const char *service);
extern int rtas_service_present(const char *service);
extern int rtas_call(int token, int, int, int *, ...);
int rtas_call_reentrant(int token, int nargs, int nret, int *outputs, ...);
void rtas_call_unlocked(struct rtas_args *args, int token, int nargs,
int nret, ...);
extern void __noreturn rtas_restart(char *cmd);
@ -483,5 +368,11 @@ static inline void rtas_initialize(void) { };
extern int call_rtas(const char *, int, int, unsigned long *, ...);
#ifdef CONFIG_HV_PERF_CTRS
void read_24x7_sys_info(void);
#else
static inline void read_24x7_sys_info(void) { }
#endif
#endif /* __KERNEL__ */
#endif /* _POWERPC_RTAS_H */

2
arch/powerpc/include/asm/slice.h
View File

@ -4,8 +4,6 @@
#ifdef CONFIG_PPC_BOOK3S_64
#include <asm/book3s/64/slice.h>
#elif defined(CONFIG_PPC_MMU_NOHASH_32)
#include <asm/nohash/32/slice.h>
#endif
#ifndef __ASSEMBLY__

4
arch/powerpc/include/asm/spinlock.h
View File

@ -23,7 +23,6 @@
#endif
#include <asm/synch.h>
#include <asm/ppc-opcode.h>
#include <asm/asm-405.h>
#ifdef CONFIG_PPC64
/* use 0x800000yy when locked, where yy == CPU number */
@ -210,7 +209,6 @@ static inline long __arch_read_trylock(arch_rwlock_t *rw)
__DO_SIGN_EXTEND
" addic. %0,%0,1\n\
ble- 2f\n"
PPC405_ERR77(0,%1)
" stwcx. %0,0,%1\n\
bne- 1b\n"
PPC_ACQUIRE_BARRIER
@ -234,7 +232,6 @@ static inline long __arch_write_trylock(arch_rwlock_t *rw)
"1: " PPC_LWARX(%0,0,%2,1) "\n\
cmpwi 0,%0,0\n\
bne- 2f\n"
PPC405_ERR77(0,%1)
" stwcx. %1,0,%2\n\
bne- 1b\n"
PPC_ACQUIRE_BARRIER
@ -292,7 +289,6 @@ static inline void arch_read_unlock(arch_rwlock_t *rw)
PPC_RELEASE_BARRIER
"1: lwarx %0,0,%1\n\
addic %0,%0,-1\n"
PPC405_ERR77(0,%1)
" stwcx. %0,0,%1\n\
bne- 1b"
: "=&r"(tmp)

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