提交 · 9b781727fd1062671afa144b93e8c69b14bcac4d · openeuler / Kernel

27 3月, 2006 40 次提交

powerpc: Move cpu_setup_6xx.S and temp.c over to arch/powerpc · 9b781727

由 Paul Mackerras 提交于 3月 27, 2006

Also renamed temp.c to tau_6xx.c (for thermal assist unit) and updated
the Kconfig option description and help text for CONFIG_TAU.
Signed-off-by: NPaul Mackerras <paulus@samba.org>

9b781727

powerpc: Move l2cr.S over to arch/powerpc · 0eb4cb9b

由 Paul Mackerras 提交于 3月 27, 2006

No functional changes, but call it l2cr_6xx.S since it is specific
to 6xx-family (including G3/750 and G4/74xx) processors.
Signed-off-by: NPaul Mackerras <paulus@samba.org>

0eb4cb9b

powerpc: Simplify pSeries idle loop · fbd7740f

由 Paul Mackerras 提交于 3月 27, 2006

Since pSeries only wants to do something different in the idle loop when
there is no work to do, we can simplify the code by implementing
ppc_md.power_save functions instead of complete idle loops.  There are
two versions: one for shared-processor partitions and one for dedicated-
processor partitions.

With this we also do a cede_processor() call on dedicated processor
partitions if the poll_pending() call indicates that the hypervisor
has work it wants to do.
Signed-off-by: NPaul Mackerras <paulus@samba.org>

fbd7740f

powerpc: Unify the 32 and 64 bit idle loops · a0652fc9

由 Paul Mackerras 提交于 3月 27, 2006

This unifies the 32-bit (ARCH=ppc and ARCH=powerpc) and 64-bit idle
loops.  It brings over the concept of having a ppc_md.power_save
function from 32-bit to ARCH=powerpc, which lets us get rid of
native_idle().  With this we will also be able to simplify the idle
handling for pSeries and cell.
Signed-off-by: NPaul Mackerras <paulus@samba.org>

a0652fc9

[PATCH] ppc32: Reorganize and complete MPC52xx initial cpu setup · 1f5e3b02

由 Sylvain Munaut 提交于 3月 26, 2006

ppc32: Reorganize and complete MPC52xx initial cpu setup

This patch splits up the CPU setup into a generic part and a
platform specific part. We also add a few missing init at the
same time.
Signed-off-by: NSylvain Munaut <tnt@246tNt.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

1f5e3b02

[PATCH] ppc32: Adds support for the LITE5200B dev board · f8dd3119

由 Sylvain Munaut 提交于 3月 26, 2006

ppc32: Adds support for the LITE5200B dev board

This LITE5200B devboard is the new development board for the
Freescale MPC5200 processor. It has two PCI slots and so a
different PCI IRQ routing.
Signed-off-by: NJohn Rigby <jrigby@freescale.com>
Signed-off-by: NSylvain Munaut <tnt@246tNt.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

f8dd3119

[PATCH] ppc32: Adds support for the PCI hostbridge in MPC5200B · 5931c435

由 Sylvain Munaut 提交于 3月 26, 2006

ppc32: Adds support for the PCI hostbridge in MPC5200B
Signed-off-by: NJohn Rigby <jrigby@freescale.com>
Signed-off-by: NSylvain Munaut <tnt@246tNt.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

5931c435

[PATCH] powerpc: legacy_serial loop cleanup · 37a801c7

由 Michael Neuling 提交于 3月 26, 2006

We only ever execute the loop once, so let's move it to a function
making it more readable.  Cleanup patch, no functional change.
Signed-off-by: NMichael Neuling <mikey@neuling.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

37a801c7

[PATCH] powerpc: Consistent printing of node id · c258dd40

由 Anton Blanchard 提交于 3月 25, 2006

We were printing node ids in hex in one spot. Lets be consistent and
always print them in decimal.
Signed-off-by: NAnton Blanchard <anton@samba.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

c258dd40

[PATCH] powerpc: Allow non zero boot cpuids · 4df20460

由 Anton Blanchard 提交于 3月 25, 2006

We currently have a hack to flip the boot cpu and its secondary thread
to logical cpuid 0 and 1. This means the logical - physical mapping will
differ depending on which cpu is boot cpu. This is most apparent on
kexec, where we might kexec on any cpu and therefore change the mapping
from boot to boot.

The patch below does a first pass early on to work out the logical cpuid
of the boot thread. We then fix up some paca structures to match.

Ive also removed the boot_cpuid_phys variable for ppc64, to be
consistent we use get_hard_smp_processor_id(boot_cpuid) everywhere.
Signed-off-by: NAnton Blanchard <anton@samba.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

4df20460

[PATCH] powerpc/pseries: Cleanup device name printing. · b4f382a3

由 Linas Vepstas 提交于 3月 24, 2006

This avoids printk'ing a NULL string.
Signed-off-by: NLinas Vepstas <linas@linas.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

b4f382a3

[PATCH] spufs: Fix endless protection fault on LS writes by SPE. · 79c227a9

由 Arnd Bergmann 提交于 3月 24, 2006

If an SPE attempts a DMA put to a local store after already doing
a get, the kernel must update the HW PTE to allow the write access.
This case was not being handled correctly.

From: Mike Kistler <mkistler@us.ibm.com>
Signed-off-by: NMike Kistler <mkistler@us.ibm.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

79c227a9

[PATCH] powerpc: use guarded ioremap for cell on-chip mappings · 47952d5e

由 Arnd Bergmann 提交于 3月 24, 2006

I'm not sure where the information came from, but I assumed
that doing cache-inhibited mappings for mmio regions was
sufficient.

It seems we also need the guarded bit set, like everyone
else, which is the default for ioremap.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

47952d5e

[PATCH] powerpc: fix spider-pic affinity setting · 2fa68747

由 Arnd Bergmann 提交于 3月 24, 2006

As noticed by Milton Miller, setting the initial affinity in
spider-pic can go wrong if the target node field was not orinally
empty.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

2fa68747

[PATCH] powerpc: dynamic probe - use ppc_md.pci_probe_mode() · 16cc11da

由 John Rose 提交于 3月 24, 2006

Change the dynamic PCI probe function for pSeries to use
ppc_md.pci_probe_mode() when appropriate.
Signed-off-by: NJohn Rose <johnrose@austin.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

16cc11da

[PATCH] powerpc: return to OF via trap, not exit · add60ef3

由 Olaf Hering 提交于 3月 23, 2006

Do not call prom exit prom_panic. It clears the screen and the exit
message is lost.

On some (or all?) pmacs it causes another crash when OF tries to print
the date and time in its banner.

Set of_platform earlier to catch more prom_panic() calls.
Signed-off-by: NOlaf Hering <olh@suse.de>
Acked-by: NSegher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

add60ef3

[PATCH] powerpc: hot_add_scn_to_nid() build fix · 069007ae

由 Andrew Morton 提交于 3月 24, 2006

The return statement is to prevent `warning: 'nid' might be used uninitialized
in this function'.

Cc: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

069007ae

[PATCH] correct the comment about stackpointer alignment in __boot_from_prom · 6088857b

由 Olaf Hering 提交于 3月 23, 2006

The address of variable val in prom_init_stdout is passed to prom_getprop.
prom_getprop casts the pointer to u32 and passes it to call_prom in the hope
that OpenFirmware stores something there.
But the pointer is truncated in the lower bits and the expected value is
stored somewhere else.

In my testing I had a stackpointer of 0x0023e6b4. val was at offset 120,
wich has address 0x0023e72c. But the value passed to OF was 0x0023e728.

c00000000040b710:       3b 01 00 78     addi    r24,r1,120
...
c00000000040b754:       57 08 00 38     rlwinm  r8,r24,0,0,28
...
c00000000040b784:       80 01 00 78     lwz     r0,120(r1)
...
c00000000040b798:       90 1b 00 0c     stw     r0,12(r27)
...

The stackpointer came from 32bit code.
The chain was yaboot -> zImage -> vmlinux

PowerMac OpenFirmware does appearently not handle the ELF sections
correctly.  If yaboot was compiled in
/usr/src/packages/BUILD/lilo-10.1.1/yaboot, then the stackpointer is
unaligned. But the stackpointer is correct if yaboot is compiled in
/tmp/yaboot.

This bug triggered since 2.6.15, now prom_getprop is an inline
function. gcc clears the lower bits, instead of just clearing the
upper 32 bits.
Signed-off-by: NOlaf Hering <olh@suse.de>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

6088857b

[PATCH] spufs: initialize context correctly · ca3e91cb

由 Dirk Herrendoerfer 提交于 3月 23, 2006

the mfc member of a new context was not initialized to zero,
which potentially leads to wild memory accesses.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

ca3e91cb

[PATCH] spufs: enable SPE problem state MMIO access. · 6df10a82

由 Mark Nutter 提交于 3月 23, 2006

This patch is layered on top of CONFIG_SPARSEMEM
and is patterned after direct mapping of LS.

This patch allows mmap() of the following regions:
"mfc", which represents the area from [0x3000 - 0x3fff];
"cntl", which represents the area from [0x4000 - 0x4fff];
"signal1" which begins at offset 0x14000; "signal2" which
begins at offset 0x1c000.

The signal1 & signal2 files may be mmap()'d by regular user
processes.  The cntl and mfc file, on the other hand, may
only be accessed if the owning process has CAP_SYS_RAWIO,
because they have the potential to confuse the kernel
with regard to parallel access to the same files with
regular file operations: the kernel always holds a spinlock
when accessing registers in these areas to serialize them,
which can not be guaranteed with user mmaps,
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

6df10a82

[PATCH] spufs: implement mfc access for PPE-side DMA · a33a7d73

由 Arnd Bergmann 提交于 3月 23, 2006

This patch adds a new file called 'mfc' to each spufs directory.
The file accepts DMA commands that are a subset of what would
be legal DMA commands for problem state register access. Upon
reading the file, a bitmask is returned with the completed
tag groups set.

The file is meant to be used from an abstraction in libspe
that is added by a different patch.

From the kernel perspective, this means a process can now
offload a memory copy from or into an SPE local store
without having to run code on the SPE itself.

The transfer will only be performed while the SPE is owned
by one thread that is waiting in the spu_run system call
and the data will be transferred into that thread's
address space, independent of which thread started the
transfer.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

a33a7d73

[PATCH] spufs: allow SPU code to do syscalls · 2dd14934

由 Arnd Bergmann 提交于 3月 23, 2006

An SPU does not have a way to implement system calls
itself, but it can create intercepts to the kernel.

This patch uses the method defined by the JSRE interface
for C99 host library calls from an SPU to implement
Linux system calls. It uses the reserved SPU stop code
0x2104 for this, using the structure layout and syscall
numbers for ppc64-linux.

I'm still undecided wether it is better to have a list
of allowed syscalls or a list of forbidden syscalls,
since we can't allow an SPU to call all syscalls that
are defined for ppc64-linux.

This patch implements the easier choice of them, with a
blacklist that only prevents an SPU from calling anything
that interacts with its own execution, e.g fork, execve,
clone, vfork, exit, spu_run and spu_create and everything
that deals with signals.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

2dd14934

[PATCH] powerpc: declare arch syscalls in <asm/syscalls.h> · a7f31841

由 Arnd Bergmann 提交于 3月 23, 2006

powerpc currently declares some of its own system calls
in <asm/unistd.h>, but not all of them. That place also
contains remainders of the now almost unused kernel syscall
hack.

 - Add a new <asm/syscalls.h> with clean declarations
 - Include that file from every source that implements one
   of these
 - Get rid of old declarations in <asm/unistd.h>

This patch is required as a base for implementing system
calls from an SPU, but also makes sense as a general
cleanup.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

a7f31841

[PATCH] powerpc: work around a cell interrupt HW bug · 5536408c

由 Arnd Bergmann 提交于 3月 23, 2006

Apparently we have found a bug in the CPU that causes
external interrupts to sometimes get disabled indefinitely.
This adds a workaround for the problem.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

5536408c

[PATCH] powerpc: cell interrupt controller updates · d0e57c68

由 Jens Osterkamp 提交于 3月 23, 2006

The current interrupt controller setup on Cell is done
in a rather ad-hoc way with device tree properties
that are not standardized at all.

In an attempt to do something that follows the OF standard
(or at least the IBM extensions to it) more closely,
we have now come up with this patch. It still provides
a fallback to the old behaviour when we find older firmware,
that hack can not be removed until the existing customer
installations have upgraded.

Cc: hpenner@de.ibm.com
Cc: stk@de.ibm.com
Cc: Segher Boessenkool <segher@kernel.crashing.org>
Cc: Milton Miller <miltonm@bga.com>
Cc: benh@kernel.crashing.org
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

d0e57c68

[PATCH] powerpc: update cell defconfig · 1a19f855

由 Arnd Bergmann 提交于 3月 23, 2006

The default configuration in mainline got a little out of
sync with what we use internally.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

1a19f855

[PATCH] powerpc: fix cell iommu setup · 5fa500bf

由 Arnd Bergmann 提交于 3月 23, 2006

A small bug crept in the iommu driver when we made it more
generic. This patch is needed for boards that have a dma
window that does not start at bus address zero.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

5fa500bf

[PATCH] powerpc: fix various sparse warnings · af308377

由 Stephen Rothwell 提交于 3月 23, 2006

Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

af308377

D
[SPARC64]: Kill duplicate exports of string library functions. · 5d5d7727
由 David S. Miller 提交于 3月 26, 2006
```
Kbuild now points these out.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
```
5d5d7727
D
[SPARC64]: Update defconfig. · e7104b67
由 David S. Miller 提交于 3月 26, 2006
```
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
```
e7104b67

[PATCH] bitops: ia64: make partial_page.bitmap an unsigned long · 55b0f8a6