Commit Graph

2816 Commits

Author SHA1 Message Date
Brent Casavant e5d310b349 [PATCH] ioc4: CONFIG split
The SGI IOC4 I/O controller chip drivers are currently all configured by
CONFIG_BLK_DEV_SGIIOC4.  This is undesirable as not all IOC4 hardware features
are needed by all systems.

This patch adds two configuration variables, CONFIG_SGI_IOC4 for core IOC4
driver support (see patch 1/3 in this series for further explanation) and
CONFIG_SERIAL_SGI_IOC4 to independently enable serial port support.

Signed-off-by: Brent Casavant <bcasavan@sgi.com>
Acked-by: Pat Gefre <pfg@sgi.com>
Acked-by: Jeremy Higdon <jeremy@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-21 18:46:32 -07:00
Brent Casavant 22329b511a [PATCH] ioc4: Core driver rewrite
This series of patches reworks the configuration and internal structure
of the SGI IOC4 I/O controller device drivers.

These changes are motivated by several factors:

- The IOC4 chip PCI resources are of mixed use between functions (i.e.
  multiple functions are handled in the same address range, sometimes
  within the same register), muddling resource ownership and initialization
  issues.  Centralizing this ownership in a core driver is desirable.

- The IOC4 chip implements multiple functions (serial, IDE, others not
  yet implemented in the mainline kernel) but is not a multifunction
  PCI device.  In order to properly handle device addition and removal
  as well as module insertion and deletion, an intermediary IOC4-specific
  driver layer is needed to handle these operations cleanly.

- All IOC4 drivers are currently enabled by a single CONFIG value.  As
  not all systems need all IOC4 functions, it is desireable to enable
  these drivers independently.

- The current IOC4 core driver will trigger loading of all function-level
  drivers, as it makes direct calls to them.  This situation should be
  reversed (i.e. function-level drivers cause loading of core driver)
  in order to maintain a clear and least-surprise driver loading model.

- IOC4 hardware design necessitates some driver-level dependency on
  the PCI bus clock speed.  Current code assumes a 66MHz bus, but the
  speed should be autodetected and appropriate compensation taken.

This patch series effects the above changes by a newly and better designed
IOC4 core driver with which the function-level drivers can register and
deregister themselves upon module insertion/removal.  By tracking these
modules, device addition/removal is also handled properly.  PCI resource
management and ownership issues are centralized in this core driver, and
IOC4-wide configuration actions such as bus speed detection are also
handled in this core driver.

This patch:

The SGI IOC4 I/O controller chip implements multiple functions, though it is
not a multi-function PCI device.  Additionally, various PCI resources of the
IOC4 are shared by multiple hardware functions, and thus resource ownership by
driver is not clearly delineated.  Due to the current driver design, all core
and subordinate drivers must be loaded, or none, which is undesirable if not
all IOC4 hardware features are being used.

This patch reorganizes the IOC4 drivers so that the core driver provides a
subdriver registration service.  Through appropriate callbacks the subdrivers
can now handle device addition and removal, as well as module insertion and
deletion (though the IOC4 IDE driver requires further work before module
deletion will work).  The core driver now takes care of allocating PCI
resources and data which must be shared between subdrivers, to clearly
delineate module ownership of these items.

Signed-off-by: Brent Casavant <bcasavan@sgi.com>
Acked-by: Pat Gefre <pfg@sgi.com
Acked-by: Jeremy Higdon <jeremy@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-21 18:46:32 -07:00
James Bottomley 994ca9a196 [PATCH] update blk_execute_rq to take an at_head parameter
Original From: Mike Christie <michaelc@cs.wisc.edu>

Modified to split out block changes (this patch) and SCSI pieces.

Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-20 14:11:09 +02:00
Andy Currid af00f9811e [PATCH] PCI: amd74xx patch for new NVIDIA device IDs
Here's the 2.6 amd74xx patch for NVIDIA MCP51.

Signed-off-by: Andy Currid <acurrid@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-05-31 14:26:38 -07:00
Jens Axboe 4e7c6816d6 [PATCH] Relax idecd dma alignment check
Only the address needs alignment of mask bits, length should work with
a relaxed alignment check.

Signed-off-by: Jens Axboe <axboe@suse.de>

[ This is take 2: make the length check be for 16-byte alignment, not
  just word alignment.  That should hopefully keep everybody happy,
  while still allowing CD writing with DMA ]

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-31 09:11:57 -07:00
Linus Torvalds 5d9e4ea55a ide-cd: revert DMA mask test change
The change to require the DMA length to be only word-aligned was not
safe.
2005-05-27 07:36:17 -07:00
Marcello Maggioni 284e423811 [PATCH] timeout at boottime with NEC3500A (and possibly others) when inserted a CD in it
From: Marcello Maggioni <hayarms@gmail.com>

Problem: Some drives (NEC 3500, TDK 1616N, Mad-dog MD-16XDVD9, RICOH
MP5163DA, Memorex DVD9 drive and IO-DATA's too for sure), if a
CD/DVD is inserted into the tray when the system is booted and if
before the OS bootup the BIOS checked for the presence of a bootable
CD/DVD into the drive, during the IDE probe phase the drive may
result busy and remain so for the next 25/30 seconds . This cause the
drive to be skipped during the booting phase and not begin usable
until the next reboot (if the reboot goes well and the drive doesn't
timeout again).

Solution: Rising the timeout time from 10 seconds to 35 seconds
(during these 35 seconds every drive should wake up for sure
according to the tests I've done).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
2005-05-26 15:47:35 +02:00
Bartlomiej Zolnierkiewicz 8604affde9 [PATCH] convert IDE device drivers to driver-model
* add ide_bus_match() and export ide_bus_type
* split ide_remove_driver_from_hwgroup() out of ide_unregister()
* move device cleanup from ide_unregister() to drive_release_dev()
* convert ide_driver_t->name to driver->name
* convert ide_driver_t->{attach,cleanup} to driver->{probe,remove}
* remove ide_driver_t->busy as ide_bus_type->subsys.rwsem
  protects against concurrent ->{probe,remove} calls
* make ide_{un}register_driver() void as it cannot fail now
* use driver_{un}register() directly, remove ide_{un}register_driver()
* use device_register() instead of ata_attach(), remove ata_attach()
* add proc_print_driver() and ide_drivers_show(), remove ide_drivers_op
* fix ide_replace_subdriver() and move it to ide-proc.c
* remove ide_driver_t->drives, ide_drives and drives_lock
* remove ide_driver_t->drivers, drivers and drivers_lock
* remove ide_drive_t->driver and DRIVER() macro

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
2005-05-26 14:55:34 +02:00
Jens Axboe 384f1fcd2d [PATCH] relax ide-cd dma restrictions
This has been sitting for a while, and is causing lots of grief for
people burning CDs.  It relaxes the dma restriction for ide-cd,
requiring only the length to be 32-byte aligned, address should be fine
at normal double word alignment.

Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-25 10:17:08 -07:00
Zhang, Yanmin 643bdc6fc0 [PATCH] ide proc destroy error
Kernel 2.6 has an ide proc destroy error. Run #modprobe ide-core and
#rmmod ide-core, then kernel will dump stack information like below.

**********Log******************
Badness in remove_proc_entry at fs/proc/generic.c:693

Call Trace:
 [<a0000001000117e0>] show_stack+0x80/0xa0
                                sp=3De0000003e05dfbe0 =
bsp=3De0000003e05d0ea8
 [<a0000001000120b0>] dump_stack+0x30/0x60
                                sp=3De0000003e05dfdb0 =
bsp=3De0000003e05d0e90
 [<a000000100183090>] remove_proc_entry+0x530/0x540
                                sp=3De0000003e05dfdb0 =
bsp=3De0000003e05d0e20
 [<a000000221cbd280>] proc_ide_destroy+0x120/0x140 [ide_core]
                                sp=3De0000003e05dfdc0 =
bsp=3De0000003e05d0df0
 [<a000000221ca65f0>] cleanup_module+0x50/0xa0 [ide_core]
                                sp=3De0000003e05dfdc0 =
bsp=3De0000003e05d0dd0
 [<a0000001000a9e10>] sys_delete_module+0x390/0x580
                                sp=3De0000003e05dfdc0 =
bsp=3De0000003e05d0d50
 [<a00000010000af40>] ia64_ret_from_syscall+0x0/0x20
                                sp=3De0000003e05dfe30 =
bsp=3De0000003e05d0d50
 [<a000000000010640>] _stext+0xffffffff00010640/0x400
                                sp=3De0000003e05e0000 =
bsp=3De0000003e05d0d50

Signed-off-by: Zhang Yanmin <yanmin.zhang@intel.com>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-17 07:59:10 -07:00
Adrian Bunk 2b0c4bed77 [PATCH] drivers/ide/pci/sis5513.c: section fixes
These three functions are referenced from the __devinitdata
sis5513_chipset.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-05 16:36:41 -07:00
Benjamin Herrenschmidt 616299afce [PATCH] ppc32: Fix IDE related crash on wakeup
I noticed an occasional crash on wakeup from sleep on my powerbook
(strangly never happened before, probably timing related) that appears to
be due to a dangling interrupt while the chip is put to sleep and beeing
reset on wakeup.

This patch fixes is by disabling the irq in the ide pmac driver while
asleep and only re-enable it after the chip has been fully reset.  This is
safe to do so as the interrupt of these apple IDE cells is never shared.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-01 08:58:41 -07:00
maximilian attems fca4480450 [PATCH] hd: eliminate bad section references
Fix hd section references:
make parse_hd_setup() __init

Error: ./drivers/ide/legacy/hd.o .text refers to 00000943 R_386_PC32
.init.text

Signed-off-by: maximilian attems <janitor@sternwelten.at>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16 15:25:52 -07:00
Pavel Machek 3bfffd97ef [PATCH] fix u32 vs. pm_message_t in rest of the tree
This fixes u32 vs.  pm_message_t confusion in remaining places.  Fortunately
there's few of them.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16 15:25:37 -07:00
Jason Gaston d69332b875 [PATCH] piix: IDE PATA patch for Intel ESB2
This patch adds the Intel ESB2 DID's to the piix.c file for IDE PATA support.

Signed-off-by: Jason Gaston <Jason.d.gaston@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16 15:24:42 -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