提交 · 868ea0c9256b658b14603e1ad7361b81b92ccacd · openeuler / raspberrypi-kernel

21 6月, 2006 34 次提交

[POWERPC] mpic: add support for serial mode interrupts · 868ea0c9

由 Mark A. Greer 提交于 6月 20, 2006

On Tue, Jun 20, 2006 at 02:01:26PM +1000, Benjamin Herrenschmidt wrote:
> On Mon, 2006-06-19 at 13:08 -0700, Mark A. Greer wrote:
> > MPC10x-style interrupt controllers have a serial mode that allows
> > several interrupts to be clocked in through one INT signal.
> >
> > This patch adds the software support for that mode.
>
> You hard code the clock ratio... why not add a separate call to be
> called after mpic_init,
> something like mpic_set_serial_int(int mpic, int enable, int
> clock_ratio) ?

How's this?
--

MPC10x-style interrupt controllers have a serial mode that allows
several interrupts to be clocked in through one INT signal.

This patch adds the software support for that mode.
Signed-off-by: NMark A. Greer <mgreer@mvista.com>
--

 arch/powerpc/sysdev/mpic.c |   20 ++++++++++++++++++++
 include/asm-powerpc/mpic.h |   10 ++++++++++
 2 files changed, 30 insertions(+)
--
Signed-off-by: NPaul Mackerras <paulus@samba.org>

868ea0c9

[POWERPC] pseries: Print PCI slot location code on failure · 0aa8d15b

由 Linas Vepstas 提交于 6月 19, 2006

The PCI error recovery code will printk diagnostic info when
a PCI error event occurs. Change the messages to include the slot
location code, which is how most sysadmins will know the device.
Signed-off-by: NLinas Vepstas <linas@austin.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

0aa8d15b

[POWERPC] spufs: one more fix for 64k pages · 37950718

由 arnd@arndb.de 提交于 6月 19, 2006

The SPU context save/restore code is currently built
for a 4k page size and we provide a _shipped version
of it since most people don't have the spu toolchain
that is needed to rebuild that code.

This patch hardcodes the data structures to a 64k
page alignment, which also guarantees 4k alignment
but unfortunately wastes 60k of memory per SPU
context that is created in the running system.

We will follow up on this with another patch to
reduce that overhead or maybe redo the context
save/restore logic to do this part entirely different,
but for now it should make experimental systems
work with either page size.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

37950718

[POWERPC] spufs: fail spu_create with invalid flags · c9832948

由 arnd@arndb.de 提交于 6月 19, 2006

At this time, all flags are invalid. Since we are
planning to actually add valid flags in the future,
we better check if any were passed by the user.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

c9832948

[POWERPC] spufs: clear class2 interrupt status before wakeup · ba723fe2

由 Masato Noguchi 提交于 6月 19, 2006

SPU interrupt status must be cleared before handle it.
Otherwise, kernel may drop some interrupt packet.

Currently, class2 interrupt treated like:
 1) call callback to wake up waiting process
 2) mask raised mailbox interrupt
 3) clear interrupt status

I changed like:
 1) mask raised mailbox interrupt
 2) clear interrupt status
 3) call callback to wake up waiting process

Clearing status before masking will make spurious interrupt.
Thus, it is necessary to hold by steps I described above, I think.
Signed-off-by: NMasato Noguchi <Masato.Noguchi@jp.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

ba723fe2

[POWERPC] spufs: fix Makefile for "make clean" · 6e18b27b

由 Masato Noguchi 提交于 6月 19, 2006

added spu_{save,restore}_dump.h to target of 'make clean'
Signed-off-by: NMasato Noguchi <Masato.Noguchi@jp.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

6e18b27b

[POWERPC] spufs: remove stop_code from struct spu · 2eabbbd3

由 Masato Noguchi 提交于 6月 19, 2006

This patch remove 'stop_code' -- discarded member of struct spu.
It is written at initialize and interrupt, but never read
in current implementation.
Signed-off-by: NMasato Noguchi <Masato.Noguchi@jp.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

2eabbbd3

[POWERPC] spufs: fix spu irq affinity setting · a91942ae

由 Geoff Levand 提交于 6月 19, 2006

This changes the hypervisor abstraction of setting cpu affinity to a
higher level to avoid platform dependent interrupt controller
routines.  I replaced spu_priv1_ops:spu_int_route_set() with a
new routine spu_priv1_ops:spu_cpu_affinity_set().

As a by-product, this change eliminated what looked like an
existing bug in the set affinity code where spu_int_route_set()
mistakenly called int_stat_get().
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

a91942ae

[POWERPC] spufs: further abstract priv1 register access · 540270d8

由 Geoff Levand 提交于 6月 19, 2006

To support muti-platform binaries the spu hypervisor accessor
routines must have runtime binding.

I removed the existing statically linked routines in spu.h
and spu_priv1_mmio.c and created new accessor routines in spu_priv1.h
that operate indirectly through an ops struct spu_priv1_ops.
spu_priv1_mmio.c contains the instance of the accessor routines
for running on raw hardware.
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

540270d8

[POWERPC] spufs: split the Cell BE support into generic and platform dependant parts · c01ea72a

由 Geoff Levand 提交于 6月 19, 2006

Creates new config variables PPC_CELL_NATIVE and PPC_IBM_CELL_BLADE.
The existing CONFIG_PPC_CELL is now used to denote the generic
Cell processor support.

PPC_CELL = make descends into platforms/cell
PPC_CELL_NATIVE = add bare metal support
PPC_IBM_CELL_BLADE = add blade device drivers, etc.

Also renames spu_priv1.c to spu_priv1_mmio.c.
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

c01ea72a

[POWERPC] spufs: dont try to access SPE channel 1 count · e46a0237

由 arnd@arndb.de 提交于 6月 19, 2006

The save/restore sequence for SPE contexts currently attempts to save
and restore the channel count for SPE channel 1 (the SPU_WriteEventMask
channel.  But the CBE architecture (section 9.11.2) clearly states
that this channel does not have an associated count.  Hardware simply
ignores the attempt to write this count, but the simulator generates
a warning message.

WARNING: 279721590: SPE7: Attempt to write channel count for CH 1 with
no associated count is ignored.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

e46a0237

[POWERPC] spufs: use kzalloc in create_spu · ecec2177

由 Jeremy Kerr 提交于 6月 19, 2006

Clean up create_spu() a little by using kzalloc instead of kmalloc +
assignments.
Signed-off-by: NJeremy Kerr <jk@ozlabs.org>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

ecec2177

[POWERPC] spufs: fix initial state of wbox file · 970f1baa

由 arnd@arndb.de 提交于 6月 19, 2006

The wbox channel count of an spu is now initialized
to four for the saved context. This makes it possible
to write to the mailbox right away without waiting
for the SPE to become scheduled first.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

970f1baa

[POWERPC] spufs: add a phys-id attribute to each SPU context · 7b1a7014

由 arnd@arndb.de 提交于 6月 19, 2006

For performance analysis, it is often interesting to know
which physical SPE a thread is currently running on, and,
more importantly, if it is running at all.

This patch adds a simple attribute to each SPU directory
with that information.
The attribute is read-only and called 'phys-id'. It contains
an ascii string with the number of the physical SPU (e.g.
"0x5"), or alternatively the string "0xffffffff" (32 bit -1)
when it is not running at all at the time that the file
is read.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

7b1a7014

[POWERPC] spufs: set up correct SLB entries for 64k pages · 724bd80e

由 arnd@arndb.de 提交于 6月 19, 2006

spufs currently knows only 4k pages and 16M hugetlb
pages. Make it use the regular methods for deciding on
the SLB bits.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

724bd80e

[POWERPC] spufs: fix deadlock in spu_create error path · 0309f02d

由 Michael Ellerman 提交于 6月 19, 2006

spufs_rmdir tries to acquire the spufs root
i_mutex, which is already held by spufs_create_thread.

This was tracked as Bug #H9512.
Signed-off-by: NMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

0309f02d

[POWERPC] spufs: restore mapping of mssync register · d9379c4b

由 arnd@arndb.de 提交于 6月 19, 2006

A recent change to the way that the mfc file gets mapped made it
impossible to map the SPE Multi-Source Synchronization register
into user space, but that may be needed by some applications.

This restores the missing functionality.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

d9379c4b

[POWERPC] cell: always build spu base into the kernel · 91edfa49

由 arnd@arndb.de 提交于 6月 19, 2006

The spu_base module is rather deeply intermixed with the
core kernel, so it makes sense to have that built-in.
This will let us extend the base in the future without
having to export more core symbols just for it.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

91edfa49

[POWERPC] cell: register SPUs as sysdevs · 1d64093f

由 Jeremy Kerr 提交于 6月 19, 2006

SPUs are registered as system devices, exposing attributes through
sysfs. Since the sysdev includes a kref, we can remove the one in
struct spu (it isn't used at the moment anyway).

Currently only the interrupt source and numa node attributes are added.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

1d64093f

[POWERPC] cell: update defconfig · 0f0f90c3

由 arnd@arndb.de 提交于 6月 19, 2006

Enable some of the most requested features in defconfig
and refresh with the latest powerpc.git Kconfig files.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

0f0f90c3

[POWERPC] cell: fix interrupt priority handling · b40feec8

由 arnd@arndb.de 提交于 6月 19, 2006

Checking the priority field to test for irq validity is
completely bogus and breaks with future external interrupt
controllers.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

b40feec8

[POWERPC] cell: add RAS support · acf7d768

由 Benjamin Herrenschmidt 提交于 6月 19, 2006

This is a first version of support for the Cell BE "Reliability,
Availability and Serviceability" features.

It doesn't yet handle some of the RAS interrupts (the ones described in
iic_is/iic_irr), I'm still working on a proper way to expose these. They
are essentially a cascaded controller by themselves (sic !) though I may
just handle them locally to the iic driver. I need also to sync with
David Erb on the way he hooked in the performance monitor interrupt.

So that's all for 2.6.17 and I'll do more work on that with my rework of
the powerpc interrupt layer that I'm hacking on at the moment.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

acf7d768

[POWERPC] Add Vitesse 8244 PHY for MPC8641 HPCN platform. · ef82a306