Commit Graph

79 Commits

Author SHA1 Message Date
Stephen Rothwell cb4cf8056e powerpc: Move iSeries_irq.c to powerpc/platorms/iseries
And rename it to irq.c.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-28 02:54:39 +10:00
Stephen Rothwell d387899f3f powerpc: Move iSeries_pci.c to powerpc/platform/iseries
and rename it to pci.c.  This also required moving
arch/ppc64/kernel/pci.h into include/asm-powerpc (called
ppc-pci.h.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-28 02:50:25 +10:00
Stephen Rothwell cc14d43083 powerpc: Move iSeries_iommu.c to powerpc/platforms/iseries
And rename it to iommu.c

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-28 02:32:16 +10:00
Stephen Rothwell e508f438e0 powerpc: Move iSeries_htab.c to powerpc/platforms/iseries
And rename it to htab.c

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-28 02:28:45 +10:00
Stephen Rothwell cb5c7980ab powerpc: move iSeries_proc.c to powerpc/platforms/iseries
And renamed it to proc.c

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-28 02:24:05 +10:00
Stephen Rothwell 544cbbaed4 powerpc: Merge HvLpEvent.c into lpevents.c
These two files were intimately connected, so just merge them.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-28 02:18:47 +10:00
Stephen Rothwell 99a2379cdd powerpc: move hvCall.s to powerpc/platforms/iseries
Rename it to hvcall.S and (so I can do that) rename hvcall.c
to hvlog.c - a more appropriate name.

Do some white space cleanups.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-28 00:17:40 +10:00
Stephen Rothwell 2952bc7c89 powerpc: move ItLpQueue.c to powerpc/platforms/iseries
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-28 00:03:46 +10:00
Stephen Rothwell c8b84976f8 powerpc: move iSeries_setup.[ch] and mf.c into platforms/iseries
iSeries_setup.c becomes setup.c
iSeries_setup.h becomes setup.h
mf.c retains its name

Also moved iSeries_[gs]et_rtc_time and iSeries_get_boot_time into
mf.c since they are just small wrappers around mf_ functions.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-27 18:44:42 +10:00
Stephen Rothwell 2960eb661a powerpc: Move LparData.c to powerpc platforms
Also rename it to lpardata.c

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-27 17:24:54 +10:00
Stephen Rothwell acdbec1b89 powerpc: Move HvLpConfig.c to powerpc arch
Also rename it to hvlpconfig.c

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-27 17:24:37 +10:00
Stephen Rothwell ba0dd617a3 powerpc: Create arch/powerpc/platforms/iseries
I also move arch/ppc64/kernel/HvCall.c to
arch/powerpc/platforms/iseries/hvcall.c.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-27 17:23:00 +10:00
Michael Ellerman 4762713a93 ppc64 iSeries: Call early_setup() on iSeries
Misc steps to incorporate the flat device tree on iSeries.

- define iseries_probe()
- call build_iSeries_Memory_Map() earlier
- return __pa() of the flat device tree from iSeries_early_setup()
- actually call early_setup() for iSeries
- add iseries_md to machdep_calls
- build prom.o for iSeries
- enable /proc/device-tree for iSeries

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-23 14:59:04 +10:00
Stephen Rothwell 564ee7a566 [PATCH] powerpc: Move arch/ppc*/kernel/vecemu.c to arch/powerpc
This file is the same in both architectures so create arch/powerpc/kernel
and move it there.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-09-21 19:21:07 +10:00
Milton Miller 7f853352e7 [PATCH] ppc64: Split SCC and 15550 udbg code
Split scc and 15550 functions from udbg each into their own file.
This makes them more symetric with the lpar and btext code.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-09-06 16:07:36 +10:00
Stephen Rothwell 8d15a3e55f [PATCH] ppc64: make firmware_has_feature() stronger
Make firmware_has_feature() evaluate at compile time for the non pSeries
case and tidy up code where possible.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-08-29 10:53:35 +10:00
Stephen Rothwell 19dbd0f6a7 [PATCH] ppc64: split pSeries specific parts out of vio.c
This patch just splits out the pSeries specific parts of vio.c.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-08-29 10:53:32 +10:00
Stephen Rothwell 3e494c8048 [PATCH] ppc64: split iSeries specific parts out of vio.c
This patch splits the iSeries specific parts out of vio.c.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-08-29 10:53:32 +10:00
Stephen Rothwell 2ad5649662 [PATCH] iSeries build with newer assemblers and compilers
Paulus suggested that we put xLparMap in its own .c file so that we can
generate a .s file to be included into head.S.  This doesn't get around
the problem of having it at a fixed address, but it makes it more
palatable.

It would be good if this could be included in 2.6.13 as it solves our
build problems with various versions of binutils and gcc.  In
particular, it allows us to build an iSeries kernel on Debian unstable
using their biarch compiler.

This has been built and booted on iSeries and built for pSeries and g5.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-16 21:06:25 -07:00
R Sharada fce0d57403 [PATCH] ppc64: kexec support for ppc64
This patch implements the kexec support for ppc64 platforms.

A couple of notes:

1)  We copy the pages in virtual mode, using the full base kernel
    and a statically allocated stack.   At kexec_prepare time we
    scan the pages and if any overlap our (0, _end[]) range we
    return -ETXTBSY.

    On PowerPC 64 systems running in LPAR (logical partitioning)
    mode, only a small region of memory, referred to as the RMO,
    can be accessed in real mode.  Since Linux runs with only one
    zone of memory in the memory allocator, and it can be orders of
    magnitude more memory than the RMO, looping until we allocate
    pages in the source region is not feasible.  Copying in virtual
    means we don't have to write a hash table generation and call
    hypervisor to insert translations, instead we rely on the pinned
    kernel linear mapping.  The kernel already has move to linked
    location built in, so there is no requirement to load it at 0.

    If we want to load something other than a kernel, then a stub
    can be written to copy a linear chunk in real mode.

2)  The start entry point gets passed parameters from the kernel.
    Slaves are started at a fixed address after copying code from
    the entry point.

    All CPUs get passed their firmware assigned physical id in r3
    (most calling conventions use this register for the first
    argument).

    This is used to distinguish each CPU from all other CPUs.
    Since firmware is not around, there is no other way to obtain
    this information other than to pass it somewhere.

    A single CPU, referred to here as the master and the one executing
    the kexec call, branches to start with the address of start in r4.
    While this can be calculated, we have to load it through a gpr to
    branch to this point so defining the register this is contained
    in is free.  A stack of unspecified size is available at r1
    (also common calling convention).

    All remaining running CPUs are sent to start at absolute address
    0x60 after copying the first 0x100 bytes from start to address 0.
    This convention was chosen because it matches what the kernel
    has been doing itself.  (only gpr3 is defined).

    Note: This is not quite the convention of the kexec bootblock v2
    in the kernel.  A stub has been written to convert between them,
    and we may adjust the kernel in the future to allow this directly
    without any stub.

3)  Destination pages can be placed anywhere, even where they
    would not be accessible in real mode.  This will allow us to
    place ram disks above the RMO if we choose.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: R Sharada <sharada@in.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 16:24:51 -07:00
Arnd Bergmann ae209cf100 [PATCH] ppc64: Add driver for BPA iommu
Implementation of software load support for the BE iommu. This is very
different from other iommu code on ppc64, since we only do a static mapping.
The mapping is currently hardcoded but should really be read from the
firmware, but they don't set up the device nodes yet. There is a single
512MB DMA window for PCI, USB and ethernet at 0x20000000 for our RAM.

The Cell processor can put the I/O page table either in memory like
the hashed page table (hardware load) or have the operating system
write the entries into memory mapped CPU registers (software load).

I use the software load mechanism because I know that all I/O page
table entries for the amount of installed physical memory fit into
the IO TLB cache. At the point when we get machines with more than
4GB of installed memory, we can either use hardware I/O page table
access like the other platforms do or dynamically update the I/O
TLB entries when a page fault occurs in the I/O subsystem.

The software load can then use the macros that I have implemented
for the static mapping in order to do the TLB cache updates.

Signed-off-by: Arnd Bergmann <arndb@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-06-23 09:43:54 +10:00
Arnd Bergmann cebf589c82 [PATCH] ppc64: Add driver for BPA interrupt controllers
Add support for the integrated interrupt controller on BPA
CPUs. There is one of those for each SMT thread.

The mapping of interrupt numbers to HW interrupt sources
is described in arch/ppc64/kernel/bpa_iic.h.

This version hardcodes the 'Spider' chip as the secondary
interrupt controller. That is not really generic for the
architecture, but at the moment it is the only secondary
PIC that exists.

A little more work will be needed on this as soon as
we have boards with multiple external interrupt controllers.

Signed-off-by: Arnd Bergmann <arndb@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-06-23 09:43:43 +10:00
Arnd Bergmann fef1c772fa [PATCH] ppc64: add BPA platform type
This adds the basic support for running on BPA machines.
So far, this is only the IBM workstation, and it will
not run on others without a little more generalization.

It should be possible to configure a kernel for any
combination of CONFIG_PPC_BPA with any of the other
multiplatform targets.

Signed-off-by: Arnd Bergmann <arndb@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-06-23 09:43:37 +10:00
Arnd Bergmann c5a3c2e52a [PATCH] ppc64: Split out generic rtas code from pSeries_pci.c.
BPA is using rtas for PCI but should not be confused by
pSeries code. This also avoids some #ifdefs. Other
platforms that want to use rtas_pci.c could create
their own platform_pci.c with platform specific fixups.

Signed-off-by: Arnd Bergmann <arndb@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-06-23 09:43:23 +10:00
Stephen Rothwell 145d01e428 [PATCH] ppc64 iSeries: allow build with no PCI
This patch allows iSeries to build with CONFIG_PCI=n.  This is useful for
partitions that have only virtual I/O.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-21 18:46:31 -07:00
Stephen Rothwell 89ef68f0be [PATCH] ppc64 iSeries: remove XmPciLpEvent.c
This patch just merges XmPciLpEvent.c into iSeries_irq.c (the only caller of
its only external function).  XmPciLpEvent.c just contained the lowlevel
iSeries irq code.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-21 18:46:30 -07:00
Stephen Rothwell 57ca86d4f0 [PATCH] ppc64 iSeries: iSeries_VpdInfo.c cleanups
Clean up iSeries_VpdInfo.c:
	- white space and comment fixes
	- make a function static
	- the functions here are only called from iSeries_pci.c, so
	  CONFIG_PCI will be set (so remove check)
	- only build when CONFIG_PCI is set
	- remove unneeded includes and cast

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-21 18:46:29 -07:00
Stephen Rothwell ea7190d0af [PATCH] ppc64 iSeries: remove iSeries_pci_reset.c
The file arch/ppc64/kernel/iSeries_pci_reset contains only one function that
is not use anywhere (any more).  Remove it.  This function is the only user of
the ReturnCode member of iSeries_Device_Node, so remove that as well.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-21 18:46:29 -07:00
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00