Fix up arch-specific work items where possible to use the new work_struct and
delayed_work structs.
Three places that enqueue bits of their stack and then return have been marked
with #error as this is not permitted.
Signed-Off-By: David Howells <dhowells@redhat.com>
Conflicts:
drivers/ata/libata-scsi.c
include/linux/libata.h
Futher merge of Linus's head and compilation fixups.
Signed-Off-By: David Howells <dhowells@redhat.com>
Conflicts:
drivers/infiniband/core/iwcm.c
drivers/net/chelsio/cxgb2.c
drivers/net/wireless/bcm43xx/bcm43xx_main.c
drivers/net/wireless/prism54/islpci_eth.c
drivers/usb/core/hub.h
drivers/usb/input/hid-core.c
net/core/netpoll.c
Fix up merge failures with Linus's head and fix new compilation failures.
Signed-Off-By: David Howells <dhowells@redhat.com>
* master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc: (194 commits)
[POWERPC] Add missing EXPORTS for mpc52xx support
[POWERPC] Remove obsolete PPC_52xx and update CLASSIC32 comment
[POWERPC] ps3: add a default zImage target
[POWERPC] Add of_platform_bus support to mpc52xx psc uart driver
[POWERPC] typo fix and whitespace cleanup on mpc52xx-uart driver
[POWERPC] Fix debug printks for 32-bit resources in the PCI code
[POWERPC] Replace kmalloc+memset with kzalloc
[POWERPC] Linkstation / kurobox support
[POWERPC] Add the e300c3 core to the CPU table.
[POWERPC] ppc: m48t35 add missing bracket
[POWERPC] iSeries: don't build head_64.o unnecessarily
[POWERPC] iSeries: stop dt_mod.o being rebuilt unnecessarily
[POWERPC] Fix cputable.h for combined build
[POWERPC] Allow CONFIG_BOOTX_TEXT on iSeries
[POWERPC] Allow xmon to build on legacy iSeries
[POWERPC] Change ppc64_defconfig to use AUTOFS_V4 not V3
[POWERPC] Tell firmware we can handle POWER6 compatible mode
[POWERPC] Clean images in arch/powerpc/boot
[POWERPC] Fix OF pci flags parsing
[POWERPC] defconfig for lite5200 board
...
The support for the 52xx-based systems is now included under
CONFIG_CLASSIC32, since the 52xx chips have a 603e-based core.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Add a powerpc make target that can be loaded by the ps3 bootloader (kboot) and
set this as the default image to build for that platform.
Until the compressed zImage wrapper is made, this arranges for a stripped
vmlinux image to be built.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
The 32-bit version and 64-bit version are almost equal. Unify them. This
makes further improvements (for example, copying with parallel, supporting
PREFETCH, etc.) easier.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This is a fix for a typo repeated several times in #error directives for
invalid SiByte configurations.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: (34 commits)
[S390] Don't use small stacks when lockdep is used.
[S390] cio: Use device_reprobe() instead of bus_rescan_devices().
[S390] cio: Retry internal operations after vary off.
[S390] cio: Use path verification for last path gone after vary off.
[S390] non-unique constant/macro identifiers.
[S390] Memory detection fixes.
[S390] cio: Make ccw_dev_id_is_equal() more robust.
[S390] Convert extmem spin_lock into a mutex.
[S390] set KBUILD_IMAGE.
[S390] lockdep: show held locks when showing a stackdump
[S390] Add dynamic size check for usercopy functions.
[S390] Use diag260 for memory size detection.
[S390] pfault code cleanup.
[S390] Cleanup memory_chunk array usage.
[S390] Misaligned wait PSW at memory detection.
[S390] cpu shutdown rework
[S390] cpcmd <-> __cpcmd calling issues
[S390] Bad kexec control page allocation.
[S390] Reset infrastructure for re-IPL.
[S390] Some documentation typos.
...
Remove use of __rom_end symbol all together. This helps clean out the
miscellaneous symbols lying around in the m68knommu linker script.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Here is a small patch to automatically detect the DRAM size on m520x.
It was generated against 2.6.17-uc0, and tested on an Intec 5208 dev board.
Signed-off-by: Michael Broughton <mbobowik@telusplanet.net>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
It turns out SHMAT, SHMDT, SHMGET and SHMCTL support in sys_ipc() for
m68knommu in 2.6 kernel(uClinux-dist-20060803 release) is missing.
(copied from m68k sources, report by David Wu <davidwu@arcturusnetworks.com>)
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch fixes the following compile error with
CONFIG_BLK_DEV_INITRD=n and -Werror-implicit-function-declaration:
...
CC arch/m68knommu/kernel/setup.o
/home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/arch/m68knommu/kernel/setup.c: In function 'setup_arch':
/home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/arch/m68knommu/kernel/setup.c:268: error: implicit declaration of function 'paging_init'
make[2]: *** [arch/m68knommu/kernel/setup.o] Error 1
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The lock dependency validator adds a bunch of extra stack frames to
the stack, which can cause stack overflows. Especially seen on 31 bit
where the small stack is only 4k.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
VMALLOC_END on 31bit should be 0x8000000UL instead of 0x7fffffffL.
The page mask which is used to make sure memory_end is on 4MB/2MB
boundary is wrong and not needed. Therefore remove it.
Make sure a vmalloc area does also exist and work on (future)
machines with 4TB and more memory.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
There's no need to have a spin_lock here, but need sleepable context
for vmem_map. Therefore convert the spin_lock into a mutex.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Set KBUILD_IMAGE to a sane value. This enables "make rpm"
Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Follow i386/x86_64:
lockdep can be used to print held locks when printing a
backtrace. This can be useful when debugging things like
'scheduling while atomic' asserts.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Use a wrapper for copy_to/from_user to chose the best usercopy method.
The mvcos instruction is better for sizes greater than 256 bytes, if
mvcos is not available a page table walk is better for sizes greater
than 1024 bytes. Also removed the redundant copy_to/from_user_std_small
functions.
Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Avoid the tprot loop if diag260 works and reports that there are no
holes in memory. The tprot instruction can lead to a significant delay
in the ipl process if the virtual guest has a lot of memory and the
host is under memory pressure.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Need this at yet another file and don't want to add yet another
extern...
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
If the memory detection code would ever reach the point where it would
load the wait psw, it would generate a specification exception and the
system would crash at ipl time. This is because of a misaligned wait
psw. It needs to be on a double word boundary instead of a word
boundary.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Let one master cpu kill all other cpus instead of sending an external
interrupt to all other cpus so they can kill themselves.
Simplifies reipl/shutdown functions a lot.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
In case of reipl cpcmd gets called when all other cpus are not running
anymore. To prevent deadlocks change __cpcmd so that it doesn't take
any locks and call cpcmd or __cpcmd, whatever is correct in the current
context.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
In case of re-IPL and diag308 doesn't work we have to reset all devices
manually and wait synchronously that each reset finished.
This patch adds the necessary infrastucture and the first exploiter of it.
Subsystems that need to add a function that needs to be called at re-IPL
may register/unregister this function via
struct reset_call {
struct reset_call *next;
void (*fn)(void);
};
void register_reset_call(struct reset_call *reset);
void unregister_reset_call(struct reset_call *reset);
When the registered function get called the context is:
- all cpus beside the current one are stopped
- all machine checks and interrupts are disabled
- prefixing is disabled
- a default machine check handler is available for use
The registered functions may not take any locks are sleep.
For the common I/O layer part of this patch:
Introduce a reset_call css_reset that does the following:
- clear all subchannels
- perform a rchp on all channel paths and wait for the resulting
machine checks
This replaces the calls to clear_all_subchannels() and
cio_reset_channel_paths() for kexec and ccw reipl. reipl_ccw_dev() now
uses reipl_find_schid() to determine the subchannel id for a given
device id.
Also remove cio_reset_channel_paths() and friends since they are not
needed anymore.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
segment save will exit with a lock held if the passed segment doesn't
exist. Any subsequent call to segment_save will lead to a deadlock.
Fix this and give up the lock before returning.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Since the diag 308 reipl method is superior to the ccw method, we should
use it whenever it is possible. We can do that, if the user has not
specified a new reipl ccw device and the system has been ipled from
a ccw device.
Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
If reboot fails (e.g. because wrong devno has been specified by the user),
we should just stop all cpus, but should not trigger a kernel panic.
Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
If multiple kernel images are installed on one DASD, the loadparm can be used
to select the boot configuration. This patch introduces the following two new
sysfs attributes:
/sys/firmware/ipl/loadparm: shows loadparm of current system (ro)
/sys/firmware/reipl/ccw/loadparm: loadparm used for next reboot (rw)
Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The SALIPL entry point has an needless memory detection routine as we
later check the memory size again. The SALIPL code also uses diagnose
0x060 if we are running under VM, but this diagnose is not compatible
with the 64 bit addressing mode. The solution is to get rid of this
code and rely on the memory detection in the startup code.
Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cure the damage done by the former PCI debug printks fix for the case
of 64-bit resources (commit 685143ac1f)
which broke it for the plain vanilla 32-bit resources...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Support for the Kurobox(HG)/LinkStation-I NAS systems by Buffalo
Technology, should be also applicable to the PPC TeraStation family.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Remove CPU_FTR_16M_PAGE from the cupfeatures mask at runtime on iSeries.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
xmon still does not run on iSeries, but this allows us to build a combined
kernel that includes it.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Defconfig ppc64 kernels running under late-model distros
may hang in the automounter rc.d script, which seems to be
expecting autofs version 4. This patch uses the newer autofs.
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This adds the "logical" PVR value used by POWER6 in "compatible" mode
to the list of PVR values that the kernel tells firmware it is able to
handle.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Add a rule to clean up the various generated image files in
arch/powerpc/boot.
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
For PCI devices with only io ports, of_bus_pci_get_flags() will fall
through and still mark the resource as IORESOURCE_MEM.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Adds utility routines used by 52xx device drivers and board support
code. Main functionality is to add device nodes to the of_platform_bus,
retrieve the IPB bus frequency, and find+ioremap device registers.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
There is no need to expose these settings outside the scope
of the interrupt controller code itself.
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
The Efika board isn't different enough from other 52xx based boards to
justify a separate platform. This patch merges it with the support
code for all other 52xx based boards.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
platforms/embedded6xx is probably going away, and 52xx boards need
some extra support the 52xx interrupt controller and DMA engine
anyway. It makes sense to group all the 52xx bits into a single path.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
No other chips use this device, it belongs in a 52xx-specific path.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
It doesn't hurt to have this enabled on legacy iSeries and will mean it
is available for a combined build.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Commit 3ccfc65c50 missed the same fixes for
legacy iSeries specific code, so make some more symbols no longer global.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Mostly taken from corresponding Makefile's make-clean rule.
Tested by (cross)compiling for $ARCH PPC and POWERPC and checking
output of git-status.
Signed-off-by: Rutger Nijlunsing <git-commit@tux.tmfweb.nl>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This adds support for flash device descriptions to the OF device tree.
It's inspired by and partially borrowed from Sergei's patch "[RFC]
Adding MTD to device tree.patch".
Signed-off-by: Vitaly Wool <vwool@ru.mvista.com>
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This allows any secondary CPU thread also to become boot cpu for
POWER5. The patch is required to solve kdump boot issue when the
kdump kernel is booted with parameter "maxcpus=1". XICS init code
tries to match the current boot cpu id with "reg" property in each CPU
node in the device tree. But CPU node is created only for primary
thread CPU ids and "reg" property only reflects primary CPU ids. So
when a kernel is booted on a secondary cpu thread above condition will
never meet and the default distribution server is left as zero. This
leads to route the interrupts to CPU 0, but which is not online at
this time.
We use ibm,ppc-interrupt-server#s to check for both primary and
secondary CPU ids. Accordingly default distribution server value is
initialized from "ibm,ppc-interrupt-gserver#s" property. We loop
through ibm,ppc-interrupt-gserver#s property to find the global
distribution server from the last entry that matches with boot cpuid.
Signed-off-by: Mohan Kumar M <mohan@in.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
It's currently not possible to build the default zImage
target if PS3 is the only selected platform. This is
a hack to fall back to building the pseries style
zImage, so the build is successful. This will probably
change in the future, if someone writes a PS3 specific
boot wrapper.
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
A few code paths need to check whether or not they are running
on the PS3's LV1 hypervisor before making hcalls. This introduces
a new firmware feature bit for this, FW_FEATURE_PS3_LV1.
Now when both PS3 and IBM_CELL_BLADE are enabled, but not PSERIES,
FW_FEATURE_PS3_LV1 and FW_FEATURE_LPAR get enabled at compile time,
which is a bug. The same problem can also happen for (PPC_ISERIES &&
!PPC_PSERIES && PPC_SOMETHING_ELSE). In order to solve this, I
introduce a new CONFIG_PPC_NATIVE option that is set when at least
one platform is selected that can run without a hypervisor and then
turns the firmware feature check into a run-time option.
The new cell oprofile support that was recently merged does not
work on hypervisor based platforms like the PS3, therefore make
it depend on PPC_CELL_NATIVE instead of PPC_CELL. This may change
if we get oprofile support for PS3.
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
When renaming CONFIG_PS3 to CONFIG_PPC_PS3, a few occurrences have been
missed.
I also fixed up the alignment in arch/powerpc/platforms/Makefile.
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
It may be desireable to build a kernel for cell without
spufs, e.g. as the initial kboot kernel. This requires
that the SPU specific parts of the core dump and the xmon
code depend on CONFIG_SPU_BASE instead of CONFIG_PPC_CELL.
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Currently, we only send a sigtrap if the current task is being ptraced.
This is somewhat inconsistant, and it breaks utrace support in fedora.
Removing the check should do the right thing in all cases.
Cc: Ulrich Weigand <ulrich.weigand@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
This changes the spu_create system call to return an error (-ENODEV) if
and isolated spu context is requested on hardware that doesn't support
isolated mode.
Tested on systemsim with and without isolation support
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
This patch fixes a compile issue for the Efika platform recently
introduced by API changes.
Signed-off-by: Nicolas DET <nd@bplan-gmbh.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Change the oprofile_cpu_type in cputables.c to be ppc64/970MP. Oprofile
needs to distinquish the MP from other 970 processors so it can add some
new counters specific to the 970MP.
Signed-off-by: Mike Wolf <mjw@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
In the common cell kernel, I want to have ps3 enabled
to find potential bugs at compile-time.
Also enable SPU disassembly in xmon.
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Adds a ps3_defconfig for the PS3 game console.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Adds spu support for the PS3 platform.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Adds support for early access to the parameter data from the PS3 'Other OS'
flash memory area. The parameter data mainly holds user preferences like
static ip address.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Adds some needed bits for a config option PS3_USE_LPAR_ADDR that disables
the PS3 lpar address translation mechanism. This is a currently needed
workaround for limitations in the design of the generic cell spu support.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Adds the core platform support for the PS3 game console and other devices
using the PS3 hypervisor.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
This fixes the xmon support for the cell spu to be compatable with the split
spu platform code.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
This adds a platform specific spu management abstraction and the coresponding
routines to support the IBM Cell Blade. It also removes the hypervisor only
resources that were included in struct spu.
Three new platform specific routines are introduced, spu_enumerate_spus(),
spu_create_spu() and spu_destroy_spu(). The underlying design uses a new
type, struct spu_management_ops, to hold function pointers that the platform
setup code is expected to initialize to instances appropriate to that platform.
For the IBM Cell Blade support, I put the hypervisor only resources that were
in struct spu into a platform specific data structure struct spu_pdata.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
This includes:
* version 1.24 of ppc-dis.c
* version 1.88 of ppc-opc.c
* version 1.23 of ppc.h
I can't vouch for the accuracy etc. of these changes, but it brings
us into line with binutils - and from a cursory test appears to work
fine.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
While adding spu disassembly support it struck me that we're actually
carrying quite a lot of code around, just to do disassembly in the case
of a crash.
While on large systems it's not an issue, on smaller ones it might be
nice to have xmon - but without the weight of the disassembly support.
For a Cell build this saves ~230KB (!), and for pSeries ~195KB.
We still support the 'di' and 'sdi' commands, however they just dump
the instruction in hex.
Move the definitions into a header to clean xmon.c just a tiny bit.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
This patch adds a "sdi" command to xmon, to disassemble the contents
of an spu's local store.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
This patch imports and munges the spu disassembly code from binutils.
All files originated from version 1.1 in binutils cvs.
* spu.h, spu-insns.h and spu-opc.c are unchanged except for pathnames.
* spu-dis.c has been edited heavily:
* use printf instead of info->fprintf_func and similar.
* pass the instruction in rather than reading it.
* we have no equivalent to symbol_at_address_func, so we just assume
there is never a symbol at the address given.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
In order to do disassembly of spu binaries in xmon, we need to abstract
the disassembly function from ppc_inst_dump.
We do this by making the actual disassembly function a function pointer
that we pass to ppc_inst_dump(). To save updating all the callers, we
turn ppc_inst_dump() into generic_inst_dump() and make ppc_inst_dump()
a wrapper which always uses print_insn_powerpc().
Currently we pass the dialect into print_insn_powerpc(), but we always
pass 0 - so just make it a local.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Add a command to xmon to dump the memory of a spu's local store.
This mimics the 'd' command which dumps regular memory, but does
a little hand holding by taking the user supplied address and
finding that offset in the local store for the specified spu.
This makes it easy for example to look at what was executing on a spu:
1:mon> ss
...
Stopped spu 04 (was running)
...
1:mon> sf 4
Dumping spu fields at address c0000000019e0a00:
...
problem->spu_npc_RW = 0x228
...
1:mon> sd 4 0x228
d000080080318228 01a00c021cffc408 4020007f217ff488 |........@ ..!...|
Aha, 01a00c02, which is of course rdch $2,$ch24 !
--
Updated to only do the setjmp goo around the spu access, and not
around prdump because it does its own (via mread).
Also the num variable is now common between sf and sd, so you don't
have to keep typing the spu number in if you're repeating commands
on the same spu.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
After stopping spus in xmon I often find myself trawling through the
field dumps to find out which spus were running. The spu stopping
code actually knows what's running, so let's print it out to save
the user some futzing.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
My patch to add spu helpers to xmon (a898497088)
introduced a few sparse warnings, because I was dereferencing an __iomem
pointer.
I think the best way to handle it is to actually use the appropriate in_beXX
functions. Need to rejigger the DUMP macro a little to accomodate that.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
With soft-disabled interrupts in power_save, we can
still get external exceptions on Cell, even if we are
in pause(0) a.k.a. sleep state.
When the CPU really wakes up through the 0x100 (system reset)
vector, while we have already started processing the 0x500
(external) exception, we get a panic in unrecoverable_exception()
because of the lost state.
This occurred in Systemsim for Cell, but as far as I can see,
it can theoretically occur on any machine that uses the
system reset exception to get out of sleep state.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
This patch adds SPU elf notes to the coredump. It creates a separate note
for each of /regs, /fpcr, /lslr, /decr, /decr_status, /mem, /signal1,
/signal1_type, /signal2, /signal2_type, /event_mask, /event_status,
/mbox_info, /ibox_info, /wbox_info, /dma_info, /proxydma_info, /object-id.
A new macro, ARCH_HAVE_EXTRA_NOTES, was created for architectures to
specify they have extra elf core notes.
A new macro, ELF_CORE_EXTRA_NOTES_SIZE, was created so the size of the
additional notes could be calculated and added to the notes phdr entry.
A new macro, ELF_CORE_WRITE_EXTRA_NOTES, was created so the new notes
would be written after the existing notes.
The SPU coredump code resides in spufs. Stub functions are provided in the
kernel which are hooked into the spufs code which does the actual work via
register_arch_coredump_calls().
A new set of __spufs_<file>_read/get() functions was provided to allow the
coredump code to read from the spufs files without having to lock the
SPU context for each file read from.
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Dwayne Grant McConnell <decimal@us.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
