2007-09-19 03:12:50 +08:00
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/*
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* Sonics Silicon Backplane
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* PCI Hostdevice wrapper
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*
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* Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>
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* Copyright (c) 2005 Stefano Brivio <st3@riseup.net>
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* Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
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* Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
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2011-07-05 02:50:05 +08:00
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* Copyright (c) 2005-2007 Michael Buesch <m@bues.ch>
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2007-09-19 03:12:50 +08:00
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*
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* Licensed under the GNU/GPL. See COPYING for details.
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*/
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#include <linux/pci.h>
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2011-07-28 10:07:02 +08:00
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#include <linux/export.h>
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 16:04:11 +08:00
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#include <linux/slab.h>
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2007-09-19 03:12:50 +08:00
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#include <linux/ssb/ssb.h>
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#ifdef CONFIG_PM
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static int ssb_pcihost_suspend(struct pci_dev *dev, pm_message_t state)
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{
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2008-03-30 07:10:50 +08:00
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struct ssb_bus *ssb = pci_get_drvdata(dev);
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int err;
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err = ssb_bus_suspend(ssb);
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if (err)
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return err;
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2007-09-19 03:12:50 +08:00
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pci_save_state(dev);
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pci_disable_device(dev);
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pci_set_power_state(dev, pci_choose_state(dev, state));
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return 0;
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}
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static int ssb_pcihost_resume(struct pci_dev *dev)
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{
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2008-03-30 07:10:50 +08:00
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struct ssb_bus *ssb = pci_get_drvdata(dev);
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2007-09-19 03:12:50 +08:00
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int err;
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pci_set_power_state(dev, 0);
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err = pci_enable_device(dev);
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if (err)
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return err;
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pci_restore_state(dev);
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2008-03-30 07:10:50 +08:00
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err = ssb_bus_resume(ssb);
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if (err)
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return err;
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2007-09-19 03:12:50 +08:00
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return 0;
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}
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#else /* CONFIG_PM */
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# define ssb_pcihost_suspend NULL
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# define ssb_pcihost_resume NULL
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#endif /* CONFIG_PM */
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2011-06-22 02:57:16 +08:00
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static int __devinit ssb_pcihost_probe(struct pci_dev *dev,
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const struct pci_device_id *id)
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2007-09-19 03:12:50 +08:00
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{
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struct ssb_bus *ssb;
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int err = -ENOMEM;
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const char *name;
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2010-10-20 22:59:33 +08:00
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u32 val;
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2007-09-19 03:12:50 +08:00
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ssb = kzalloc(sizeof(*ssb), GFP_KERNEL);
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if (!ssb)
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goto out;
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err = pci_enable_device(dev);
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if (err)
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goto err_kfree_ssb;
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ssb: struct device - replace bus_id with dev_name(), dev_set_name()
This patch is part of a larger patch series which will remove
the "char bus_id[20]" name string from struct device. The device
name is managed in the kobject anyway, and without any size
limitation, and just needlessly copied into "struct device".
To set and read the device name dev_name(dev) and dev_set_name(dev)
must be used. If your code uses static kobjects, which it shouldn't
do, "const char *init_name" can be used to statically provide the
name the registered device should have. At registration time, the
init_name field is cleared, to enforce the use of dev_name(dev) to
access the device name at a later time.
We need to get rid of all occurrences of bus_id in the entire tree
to be able to enable the new interface. Please apply this patch,
and possibly convert any remaining remaining occurrences of bus_id.
We want to submit a patch to -next, which will remove bus_id from
"struct device", to find the remaining pieces to convert, and finally
switch over to the new api, which will remove the 20 bytes array
and does no longer have a size limitation.
CC: Michael Buesch <mb@bu3sch.de>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-Off-By: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-10-30 22:51:57 +08:00
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name = dev_name(&dev->dev);
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2007-09-19 03:12:50 +08:00
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if (dev->driver && dev->driver->name)
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name = dev->driver->name;
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err = pci_request_regions(dev, name);
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if (err)
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goto err_pci_disable;
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pci_set_master(dev);
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2010-10-20 22:59:33 +08:00
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/* Disable the RETRY_TIMEOUT register (0x41) to keep
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* PCI Tx retries from interfering with C3 CPU state */
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pci_read_config_dword(dev, 0x40, &val);
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if ((val & 0x0000ff00) != 0)
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pci_write_config_dword(dev, 0x40, val & 0xffff00ff);
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2007-09-19 03:12:50 +08:00
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err = ssb_bus_pcibus_register(ssb, dev);
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if (err)
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goto err_pci_release_regions;
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pci_set_drvdata(dev, ssb);
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out:
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return err;
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err_pci_release_regions:
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pci_release_regions(dev);
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err_pci_disable:
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pci_disable_device(dev);
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err_kfree_ssb:
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kfree(ssb);
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return err;
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}
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static void ssb_pcihost_remove(struct pci_dev *dev)
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{
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struct ssb_bus *ssb = pci_get_drvdata(dev);
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ssb_bus_unregister(ssb);
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pci_release_regions(dev);
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pci_disable_device(dev);
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kfree(ssb);
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pci_set_drvdata(dev, NULL);
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}
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2011-06-22 02:57:16 +08:00
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int __devinit ssb_pcihost_register(struct pci_driver *driver)
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2007-09-19 03:12:50 +08:00
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{
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driver->probe = ssb_pcihost_probe;
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driver->remove = ssb_pcihost_remove;
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driver->suspend = ssb_pcihost_suspend;
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driver->resume = ssb_pcihost_resume;
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return pci_register_driver(driver);
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}
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EXPORT_SYMBOL(ssb_pcihost_register);
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