Commit Graph

47 Commits

Author SHA1 Message Date
Helge Deller 6a45716abb parisc: fix partly 16/64k PAGE_SIZE boot
This patch fixes partly PAGE_SIZEs of 16K or 64K by adjusting the
assembler PTE lookup code and the assembler TEMPALIAS code.  Furthermore
some data alignments for PAGE_SIZE have been limited to 4K (or less) to
not waste too much memory with greater page sizes. As a side note, the
palo loader can (currently) only handle up to 10 ELF segments which is
fixed with tighter aligning as well.

My testings indicated that the ldci command in the sba iommu coding
needed adjustment by the PAGE_SHIFT value and that the I/O PDIR Page
size was only set to 4K for my machine (C3000).

All this fixes partly the boot, but there are still quite some caching
problems left.  Examples are e.g. the symbios logic driver which is
failing:

sym0: <896> rev 0x7 at pci 0000:00:0f.0 irq 69
sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
CACHE TEST FAILED: DMA error (dstat=0x81).sym0: CACHE INCORRECTLY CONFIGURED.

and the tulip network driver which doesn't seem to work correctly
either:

Sending BOOTP requests .net eth0: Setting full-duplex based on MII#1
link partner capability of 05e1
..... timed out!

Beside those kernel fixes glibc will need fixes too to be able to handle
>4K page sizes.

Signed-off-by: Helge Deller <deller@gmx.de>
2013-05-06 23:08:32 +02:00
Rolf Eike Beer 4a8a0788a3 parisc: move definition of PAGE0 to asm/page.h
This was defined in asm/pdc.h which needs to include asm/page.h for
__PAGE_OFFSET. This leads to an include loop so that page.h eventually will
include pdc.h again. While this is no problem because of header guards, it is
a problem because some symbols may be undefined. Such an error is this:

In file included from include/linux/bitops.h:35:0,
                 from include/asm-generic/getorder.h:7,
                 from arch/parisc/include/asm/page.h:162,
                 from arch/parisc/include/asm/pdc.h:346,
                 from arch/parisc/include/asm/processor.h:16,
                 from arch/parisc/include/asm/spinlock.h:6,
                 from arch/parisc/include/asm/atomic.h:20,
                 from include/linux/atomic.h:4,
                 from include/linux/sysfs.h:20,
                 from include/linux/kobject.h:21,
                 from include/linux/device.h:17,
                 from include/linux/eisa.h:5,
                 from arch/parisc/kernel/pci.c:11:
arch/parisc/include/asm/bitops.h: In function ‘set_bit’:
arch/parisc/include/asm/bitops.h:82:2: error: implicit declaration of function ‘_atomic_spin_lock_irqsave’ [-Werror=implicit-function-declaration]
arch/parisc/include/asm/bitops.h:84:2: error: implicit declaration of function ‘_atomic_spin_unlock_irqrestore’ [-Werror=implicit-function-declaration]

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-10 15:12:08 -07:00
Paul Gortmaker 6caddf0a74 parisc: add module.h to files really requiring it
We want to clean up the implicit everywhere presence of module.h
which means files like this that use module infrastructure need
to explicitly call it out for inclusion.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:31:01 -04:00
Paul Bolle 395cf9691d doc: fix broken references
There are numerous broken references to Documentation files (in other
Documentation files, in comments, etc.). These broken references are
caused by typo's in the references, and by renames or removals of the
Documentation files. Some broken references are simply odd.

Fix these broken references, sometimes by dropping the irrelevant text
they were part of.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-09-27 18:08:04 +02:00
Jan Beulich 4481374ce8 mm: replace various uses of num_physpages by totalram_pages
Sizing of memory allocations shouldn't depend on the number of physical
pages found in a system, as that generally includes (perhaps a huge amount
of) non-RAM pages.  The amount of what actually is usable as storage
should instead be used as a basis here.

Some of the calculations (i.e.  those not intending to use high memory)
should likely even use (totalram_pages - totalhigh_pages).

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Dave Airlie <airlied@linux.ie>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Patrick McHardy <kaber@trash.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22 07:17:38 -07:00
Matthew Wilcox ca0844e347 parisc: Fix PCI resource allocation on non-PAT SBA machines
We weren't marking the resources as memory resources, so they weren't
being found by pci_claim_resource().

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Reviewed-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-07-03 03:34:12 +00:00
Greg Kroah-Hartman d18dbfa7aa parisc: remove driver_data direct access of struct device
In the near future, the driver core is going to not allow direct access
to the driver_data pointer in struct device.  Instead, the functions
dev_get_drvdata() and dev_set_drvdata() should be used.  These functions
have been around since the beginning, so are backwards compatible with
all older kernel versions.

Cc: linux-parisc@vger.kernel.org
Cc: Helge Deller <deller@gmx.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:30:28 -07:00
Kyle McMartin 5bee17f18b parisc: sba_iommu: fix build bug when CONFIG_PARISC_AGP=y
CC      drivers/parisc/sba_iommu.o
drivers/parisc/sba_iommu.c:1373: error: expected identifier or '('
before '}' token
make[2]: *** [drivers/parisc/sba_iommu.o] Error 1
make[1]: *** [drivers/parisc] Error 2
make: *** [drivers] Error 2

Don't know how this has gone missed for so long... clearly I need
to do builds on my C8000 more often.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-15 13:36:22 -07:00
James Bottomley bfe4f4f800 parisc: remove klist iterators
commit 11c3b5c3e0
Author: Greg Kroah-Hartman <gregkh@suse.de>
Date:   Tue Dec 16 12:24:56 2008 -0800

    driver core: move klist_children into private structure

Broke our parisc build pretty badly because we touch the klists directly
in three cases (AGP, SBA and GSC).  Although GregKH will revert this
patch, there's no reason we should be using the iterators directly, we
can just move to the standard device_for_each_child() API.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Tested-by: Helge Deller <deller@gmx.de>
Tested-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-03-13 01:16:58 -04:00
Randy Dunlap 5872fb94f8 Documentation: move DMA-mapping.txt to Doc/PCI/
Move DMA-mapping.txt to Documentation/PCI/.

DMA-mapping.txt was supposed to be moved from Documentation/ to
Documentation/PCI/.  The 00-INDEX files in those two directories
were updated, along with a few other text files, but the file
itself somehow escaped being moved, so move it and update more
text files and source files with its new location.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
cc:	Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29 18:19:29 -08:00
FUJITA Tomonori 0063507787 parisc: remove dead BIO_VMERGE_BOUNDARY and BIO_VMERGE_MAX_SIZE definitions
The block layer dropped the virtual merge feature
(b8b3e16cfe). BIO_VMERGE_BOUNDARY and
BIO_VMERGE_MAX_SIZE definitions are meaningless now.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-01-05 18:15:25 +00:00
Adrian Bunk df8e5bc6b7 parisc: drivers/parisc/: make code static
Make the following needlessly global code static:

- asp.c: asp_init_chip()
- ccio-dma.c: ccio_io_pdir_entry()
- dino.c: struct dino_port_ops
- dino.c: struct dino_bios_ops
- hppb.c: struct hppb_card_head
- lasi.c: lasi_led_init()
- lasi.c: lasi_init_chip()
- lba_pci.c: struct lba_bios_ops
- sba_iommu.c: sba_io_pdir_entry()
- sba_iommu.c: sba_driver_callback()
- sba_iommu.c: sba_driver_callback()
- wax.c: wax_init_chip()

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-01-05 18:15:24 +00:00
Harvey Harrison a8043ecb17 drivers/parisc: replace remaining __FUNCTION__ occurrences
__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <willy@debian.org>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2008-05-15 10:38:54 -04:00
Denis V. Lunev 0fd6894682 parisc: use non-racy method for proc entries creation
Use proc_create() to make sure that ->proc_fops be setup before gluing PDE to
main tree.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29 08:06:22 -07:00
FUJITA Tomonori 56ee0cfd09 [PARISC] make ptr_to_pide() static
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2008-03-15 19:17:12 -07:00
FUJITA Tomonori 4a0d3f3afd parisc: fix IOMMU's device boundary overflow bug on 32bits arch
On 32bits boxes, boundary_size becomes zero due to a overflow and we
hit BUG_ON in iommu_is_span_boundary.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Acked-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-05 17:55:13 -08:00
FUJITA Tomonori 466634488e iommu: parisc: make the IOMMUs respect the segment boundary limits
Make PARISC's two IOMMU implementations not allocate a memory area spanning
LLD's segment boundary.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-04 16:35:17 -08:00
FUJITA Tomonori 7c8cda625a iommu: parisc: pass struct device to iommu_alloc_range
This adds struct device argument to sba_alloc_range and ccio_alloc_range, a
preparation for modifications to fix the IOMMU segment boundary problem.  This
change enables ccio_alloc_range to access to LLD's segment boundary limits.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-04 16:35:17 -08:00
FUJITA Tomonori d1b5163206 iommu sg merging: parisc: make iommu respect the segment size limits
This patch makes iommu respect segment size limits when merging sg
lists.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Acked-by: Grant Grundler <grundler@parisc-linux.org>
Cc: Matthew Wilcox <willy@debian.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:10 -08:00
FUJITA Tomonori b61e8f4844 parisc: fix sg_page() fallout
arch/parisc/kernel/pci-dma.c: In function 'pa11_dma_map_sg':
arch/parisc/kernel/pci-dma.c:487: error: 'struct scatterlist' has no member named 'page'
arch/parisc/kernel/pci-dma.c: In function 'pa11_dma_unmap_sg':
arch/parisc/kernel/pci-dma.c:508: error: 'struct scatterlist' has no member named 'page'
arch/parisc/kernel/pci-dma.c:508: error: 'struct scatterlist' has no member named 'page'
arch/parisc/kernel/pci-dma.c: In function 'pa11_dma_sync_sg_for_cpu':
arch/parisc/kernel/pci-dma.c:535: error: 'struct scatterlist' has no member named 'page'
arch/parisc/kernel/pci-dma.c:535: error: 'struct scatterlist' has no member named 'page'
arch/parisc/kernel/pci-dma.c: In function 'pa11_dma_sync_sg_for_device':
arch/parisc/kernel/pci-dma.c:545: error: 'struct scatterlist' has no member named 'page'
arch/parisc/kernel/pci-dma.c:545: error: 'struct scatterlist' has no member named 'page'

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-23 09:49:31 +02:00
Kyle McMartin e9a03990d9 [PARISC] Clean up a resource_size_t warning in sba_iommu
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18 00:59:08 -07:00
Milind Arun Choudhary 3cb1d95847 [PARISC] ROUNDUP macro cleanup in drivers/parisc
Clean up ROUNDUP, Use ALIGN where ever appropriate.

Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com>
Acked-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-05-22 23:56:18 -04:00
Linus Torvalds b0138a6cb7 Merge master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6: (78 commits)
  [PARISC] Use symbolic last syscall in __NR_Linux_syscalls
  [PARISC] Add missing statfs64 and fstatfs64 syscalls
  Revert "[PARISC] Optimize TLB flush on SMP systems"
  [PARISC] Compat signal fixes for 64-bit parisc
  [PARISC] Reorder syscalls to match unistd.h
  Revert "[PATCH] make kernel/signal.c:kill_proc_info() static"
  [PARISC] fix sys_rt_sigqueueinfo
  [PARISC] fix section mismatch warnings in harmony sound driver
  [PARISC] do not export get_register/set_register
  [PARISC] add ENTRY()/ENDPROC() and simplify assembly of HP/UX emulation code
  [PARISC] convert to use CONFIG_64BIT instead of __LP64__
  [PARISC] use CONFIG_64BIT instead of __LP64__
  [PARISC] add ASM_EXCEPTIONTABLE_ENTRY() macro
  [PARISC] more ENTRY(), ENDPROC(), END() conversions
  [PARISC] fix ENTRY() and ENDPROC() for 64bit-parisc
  [PARISC] Fixes /proc/cpuinfo cache output on B160L
  [PARISC] implement standard ENTRY(), END() and ENDPROC()
  [PARISC] kill ENTRY_SYS_CPUS
  [PARISC] clean up debugging printks in smp.c
  [PARISC] factor syscall_restart code out of do_signal
  ...

Fix conflict in include/linux/sched.h due to kill_proc_info() being made
publicly available to PARISC again.
2007-02-26 12:48:06 -08:00
Arjan van de Ven d54b1fdb1d [PATCH] mark struct file_operations const 5
Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:45 -08:00
Randy Dunlap 29a1e1d273 [PATCH] parisc: fix module_param iommu permission
Fix/change module_param permissions parameter from an init value
to a permission value.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <willy@debian.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2007-02-08 18:56:34 -05:00
Matthew Wilcox c2c4798e04 [PARISC] sparse fixes
0/NULL, missing __user, missing __iomem, non-ANSI prototype.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-12-08 00:34:33 -05:00
Matthew Wilcox ee9f4b5d95 [PA-RISC] Fix sba_iommu compilation
klist_iter_exit() only takes one parameter.
Also fix warning by adding additional brackets.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
2006-10-05 01:48:17 +00:00
Kyle McMartin 08a6436816 [PARISC] Add support for Quicksilver AGPGART
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04 06:50:16 -06:00
Kyle McMartin 983daeec99 [PARISC] Move LBA and SBA register defines to the common ropes.h
header. This will allow the use of more constants in the
agpgart driver.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04 06:50:05 -06:00
Kyle McMartin 1790cf9111 [PARISC] Create shared <asm/ropes.h> header
Pull out struct sba_device and struct lba_device into a
common ropes.h header. Also fold the parisc portion of
iosapic.h into this file. (Then delete the useless portion
of iosapic.h)

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04 06:49:56 -06:00
Kyle McMartin 1b240f415f [PARISC] Generalize IS_ASTRO et al to take a parisc_device like
IS_ELROY. Also remove the useless caching of the
parisc_device_id in struct sba_device.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04 06:49:35 -06:00
Matthew Wilcox 7886089e3c [PARISC] Remove some obsolete comments and I checked that Reo is similar to Ike
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04 06:49:15 -06:00
Kyle McMartin 6f03495d65 [PARISC] Add asm-parisc/mckinley.h bus header
Add header for McKinley bus related code. Remove extern decl
of proc_mckinley_root in drivers/parisc/sba_iommu.c

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04 06:45:48 -06:00
Jörn Engel 6ab3d5624e Remove obsolete #include <linux/config.h>
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30 19:25:36 +02:00
Kyle McMartin 692086e0b3 [PARISC] Test ioc_needs_fdc variable instead of open coding
Some debugging code in sba_iommu.c should be testing ioc_needs_fdc,
not directly testing boot_cpu_data.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-06-27 23:28:35 +00:00
Grant Grundler 40d78de1ac [PARISC] Fix gcc 4.1 warnings in sba_iommu.c
Clean up gcc 4.1 warnings noted by Joel Soete.
Kyle McMartin gets kudos for pointing out the issues.
Matthew Wilcox noticed sba_iommu was using open coded versions
of (read|write)X.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-06-27 23:28:34 +00:00
Grant Grundler b312c33e36 [PARISC] Document that we tolerate "Relaxed Ordering"
This means "DMA Read returns" can bypass "MMIO Writes".
Violating the PCI specs in this case improves outbound DMA "flows"
and is currently not required by any drivers.

This is NOT a new behavior. Previous chipsets did this
already and I believe ZX1 PDC was already setting this
for hpux. I just want to further document the behavior.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-04-21 22:20:33 +00:00
Helge Deller 5076c15862 [PARISC] I/O-Space must be ioremap_nocache()'d
Addresses in F-space must be accessed uncached on most parisc machines.

Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-03-30 17:48:42 +00:00
Eric Sesterhenn b74945547f BUG_ON() Conversion in drivers/parisc/
this changes if() BUG(); constructs to BUG_ON() which is
cleaner, contains unlikely() and can better optimized away.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-03-24 18:52:10 +01:00
Kyle McMartin 7ec14e49b7 [PARISC] Convert sba_iommu.c to use seq_file
Use seq_file interface for proc output in sba_iommu. Also
clean up the bus root assignment, and give the proc files
a more logical name. Tested on my J6000.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-02-08 22:56:22 -05:00
Helge Deller cb6fc18e9c [PARISC] Use kzalloc and other janitor-style cleanups
Helge,
  o Convert a bunch of kmalloc/memset uses to kzalloc.
  o pci.c: Add some __read_mostly annotations.
  o pci.c: Move constant pci_post_reset_delay to asm/pci.h
  o grfioctl.h: Add A4450A to comment of CRT_ID_VISUALIZE_EG.
  o Add some consts to perf.c/perf_images.h

Matthew,
  o sticore.c: Add some consts to suppress compile warnings.

Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-01-22 20:26:31 -05:00
Kyle McMartin 210cc679fa Auto-update from upstream 2005-10-28 12:18:07 -04:00
Al Viro 5c1fb41f40 [PATCH] gfp_t: dma-mapping (parisc)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-28 08:16:48 -07:00
Grant Grundler 64908ad95c [PARISC] Update sba_iommu from parisc tree
revert use of %%sr0 in fdc asm.
Thanks to Joel Soete for pointing out this oversight.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

2.6.14-rc2-pa3 move "sync" outside the main loop that fills IO Pdir.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

remove explicit use of sr0 in fdc ops.
Thanks to Joel Soete for reminding me were I added those...

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

2.6.14-rc2-pa2 - make SBA more anal about invalidating pdir entries

Previous code cleared the valid flag a pdir entry but it did NOT
guarantee this change was visible to the PDIR before writing
the PCOM register. Ie the SBA could pick up a stale entry if
the write happened to hit the SBA before the cacheline was flushed
from the cache.

Long term, I think I want to make this a compile time flag.
Developement tree should enable anal pdir checking by default
and Debian can disable it with either a CONFIG option
or one-line patch. fdc/sync options can only negatively affect
performance though I haven't measure how much yet.
If someone can run netperf TCP_RR across gige and compare
-pa1 and -pa2, that would be sufficient.

Cleaned up the use of "fdc" to make sure it's using "kernel"
space id (specify sr0 but maps to sr4-7). It seems a bit fragile
to assume "sr1" gets loaded with KERNEL_SPACE which is how the
code works today.

Tested on 32 and 64-bit SMP kernels on j6k.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

remove PDC_NARROW from SBA and document history of PDC_NARROW a bit.
It will still show up in an older kernel's .config file.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

if/ifdef cleanups from Joel Soete.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

2.6.12-rc4-pa2  fix 32-bit support for Astro platforms
o Since my last SBA code change, SBA could allocate more than 1GB of IOVA
  space on Astro boxes with more than 1GB of RAM when running 32-bit kernel.
  This is bad since IOMMU can only talk to the first 1GB at most.
  Kudos to jejb for quickly spotting that bug.

o jejb also noted SBA should *always* reject DMA masks > 32-bits since
  DMA-mapping.txt indicates caller should try again with 32-bits.

o off-by-one error when comparing the mask to IOVA space size.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:37:20 -04:00
Matthew Wilcox 53f01bba49 [PARISC] Convert parisc_device to use struct resource for hpa
Convert pa_dev->hpa from an unsigned long to a struct resource.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Fix up users of ->hpa to use ->hpa.start instead.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:36:40 -04:00
Matthew Wilcox 5658374766 [PARISC] Convert parisc_device tree to use struct device klists
Fix parse_tree_node.  much more needs to be done to fix this file.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Make drivers.c compile based on a patch from Pat Mochel.

From: Patrick Mochel <mochel@digitalimplant.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

Fix drivers.c to create new device tree nodes when no match is found.

Signed-off-by: Richard Hirst <rhirst@parisc-linux.org>

Do a proper depth-first search returning parents before children, using the
new klist infrastructure.

Signed-off-by: Richard Hirst <rhirst@parisc-linux.org>

Fixed parisc_device traversal so that pdc_stable works again
Fixed check_dev so it doesn't dereference a parisc_device until it
has verified the bus type

Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

Convert pa_dev->hpa from an unsigned long to a struct resource.
Use insert_resource() instead of request_mem_region().
Request resources at bus walk time instead of driver probe time.
Don't release the resources as we don't have any hotplug parisc_device
support yet.
Add parisc_pathname() to conveniently get the textual representation
of the hwpath used in sysfs.
Inline the remnants of claim_device() into its caller.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

I noticed that some of the STI regions weren't showing up in iomem.
Reading the STI spec indicated that all STI devices occupy at least 32MB.
So check for STI HPAs and give them 32MB instead of 4kB.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:33:38 -04:00
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