Change RapidIO doorbell source and target ID field to 16-bit for
support large system size, which max rio devid is 65535.
Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This adds properties describing the RapidIO controller to the
device-tree source for the MPC8641HPCN board.
Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
The RapidIO system size will auto probe in RIO setup. The route table
and rionet_active in rionet.c are changed to be allocated dynamically
according to the size of the system.
Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This initializes the RapidIO controller driver using addresses and
interrupt numbers obtained from the firmware device tree, rather than
using hardcoded constants.
Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
The original RapidIO driver suppose there is only one mpc85xx RIO controller
in system. So, some data structures are defined as mpc85xx_rio global, such
as 'regs_win', 'dbell_ring', 'msg_tx_ring'. Now, I changed them to mport's
private members. And you can define multi RIO OF-nodes in dts file for multi
RapidIO controller in one processor, such as PCI/PCI-Ex host controllers in
Freescale's silicon. And the mport operation function declaration should be
changed to know which RapidIO controller is target.
Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
The driver is suitable for the Freescale MPC8641 processor as well as
85xx processors, so this changes the mpc85xx prefix to fsl.
Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Current limitations:
1) On SMP single stepping has some fundamental issues,
shared with other sw single-step architectures such
as mips and arm.
2) On 32-bit sparc we don't support SMP kgdb yet. That
requires some reworking of the IPI mechanisms and
infrastructure on that platform.
Signed-off-by: David S. Miller <davem@davemloft.net>
Completely unused, and it just makes the SMP message
passing code on 32-bit sparc look more complex than
it is.
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds bio_copy_kern similar to
bio_copy_user. blk_rq_map_kern uses bio_copy_kern instead of
bio_map_kern if necessary.
bio_copy_kern uses temporary pages and the bi_end_io callback frees
these pages. bio_copy_kern saves the original kernel buffer at
bio->bi_private it doesn't use something like struct bio_map_data to
store the information about the caller.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
As ps3disk is a ppc64-only driver, sector_t equals to unsigned long, and the
cast is not needed.
Reuse in another (possibly 32-bit) driver is protected by the safety net called
`compiler warning' (with the cast, it may silently truncate to 32-bit).
If sector_t ever changes, we will get a compiler warning as well (with the
cast, we won't).
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This requires moving rq_init() from get_request() to blk_alloc_request().
The upside is that we can now require an rq_init() from any path that
wishes to hand the request to the block layer.
rq_init() will be exported for the code that uses struct request
without blk_get_request.
This is a preparation for large command support, which needs to
initialize struct request in a proper way (that is, just doing a
memset() will not work).
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
acpi_ev_disable_gpe() has an optimization where it doesn't disable
a GPE that it "doesn't have to". Unfortunately, it can get tricked
by AML that scribbles on register state behind its back. So when asked
to disable a GPE, simply do it -- a redundant register write
in the common case is a fair price to pay to be bomb-proof
for the rare cases.
http://bugzilla.kernel.org/show_bug.cgi?id=6217
Signed-off-by: Damián Viano <des@debian.org>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
The contents of include/linux/pnpbios.h are used only inside the PNPBIOS
backend, so this file doesn't need to be visible outside PNP.
This patch moves the contents into an existing PNPBIOS-specific file,
drivers/pnp/pnpbios/pnpbios.h.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
The "regs" field in struct pnp_dev is set but never read, so remove it.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
The interfaces for registering protocols, devices, cards,
and resource options should only be used inside the PNP core.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Move warnings about _CRS and _PRS problems to the place where we
actually make the ACPI calls. Then we don't have to pass around
acpi_status values any more than necessary.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
isapnp_get_resources() does very little besides call
isapnp_read_resources(), so just fold them back together.
Based on a patch by Rene Herman <rene.herman@gmail.com>
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Add a pnp_add_mem_resource() that can be used by all the PNP
backends. This consolidates a little more pnp_resource_table
knowledge into one place.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Add a pnp_add_io_resource() that can be used by all the PNP
backends. This consolidates a little more pnp_resource_table
knowledge into one place.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Add a pnp_add_dma_resource() that can be used by all the PNP
backends. This consolidates a little more pnp_resource_table
knowledge into one place.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Add a pnp_add_irq_resource() that can be used by all the PNP
backends. This consolidates a little more pnp_resource_table
knowledge into one place.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This encapsulates the code to locate a new pnp_resource of the
desired type. Currently this uses the pnp_resource_table, but
it will soon change to find a resource in a linked list.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Save the ISAPNP config register index in the struct pnp_resource.
We need this because it is important to write ISAPNP configuration
back to the same registers we read it from. For example, if we
read valid regions from memory descriptors 0, 1, and 3, we'd
better write them back to the same registers, without compressing
them to descriptors 0, 1, and 2.
This was previously guaranteed by using the index into the
pnp_resource_table array as the ISAPNP config register index.
However, I am removing those fixed-size arrays, so we need to
save the ISAPNP register index elsewhere.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
In some places, we need to get the struct pnp_resource, not just
the struct resource, because ISAPNP needs to store the register
index in the pnp_resource.
I don't like pnp_get_pnp_resource() and hope that it is temporary,
but we need it for a little while.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This patch adds a "struct pnp_resource". This currently
contains only a struct resource, but we will soon need
additional PNP-specific information.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This removes a few more references to the pnp_resource_table.
No functional change.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
There are no remaining references to the PNP_MAX_* constants or
the pnp_resource_table structure outside of the PNP core. Make
them private to the PNP core.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
pnp_resource_table is going away soon, so use the more
generic public interfaces instead.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Remove some PNP_MAX_* uses. The pnp_resource_table isn't
dynamic yet, but with pnp_get_resource(), we can start moving
away from the table size constants.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This removes more direct references to pnp_resource_table from the
pnp_assign_resources() path and the /sys user interface path.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This removes more direct references to pnp_resource_table. This
path is used when telling a device what resources it should use.
This doesn't convert ISAPNP because ISA needs to know the config
register index in addition to the resource itself.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This removes more direct references to pnp_resource_table.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
The caller already has the struct resource pointer, so no need for
pnp_check_port(), pnp_check_mem(), etc., to look it up again.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This patch removes a use of "idx" in pnp_check_port() and similar
functions, in preparation for replacing idx with a pointer to the
resource itself.
I split this out because it changes the behavior slightly: we used
to check for conflicts only with earlier resources, e.g., we checked
resource 2 against resources 0 and 1 but not against 3, 4, etc. Now
we will check against all resources except 2.
Since resources are assigned in ascending order, the old behavior
was probably safe, but I don't like to depend on that ordering.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Use a temporary "res" pointer to replace repeated lookups in
the pnp resource tables.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Use a temporary "res" pointer to replace repeated lookups in
the pnp resource tables.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Use a temporary "res" pointer to replace repeated lookups in
the pnp resource tables.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Cosmetic only: just use "i" instead of "tmp".
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This removes more direct references to pnp_resource_table.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
A future change will change pnp_mem_flags() from a "#define that
simplifies to an lvalue" to "an inline function that returns the
flags value."
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This adds a pnp_get_resource() that works the same way as
platform_get_resource(). This will enable us to consolidate
many pnp_resource_table references in one place, which will
make it easier to make the table dynamic.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Move the common part of pnp_init_resource_table() and
pnp_clean_resource_table() into a new pnp_init_resource().
This reduces a little code duplication and will be
useful later to initialize an individual resource.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
