kernel_optimize_test/drivers/base
Marc Zyngier c09fcc4b2b drivers/base: Add MSI domain support for non-PCI devices
With the msi_list and the msi_domain properties now being at the
generic device level, it is starting to be relatively easy to offer
a generic way of providing non-PCI MSIs.

The two major hurdles with this idea are:

- Lack of global ID that identifies a device: this is worked around by
  having a global ID allocator for each device that gets enrolled in
  the platform MSI subsystem

- Lack of standard way to write the message in the generating device.
  This is solved by mandating driver code to provide a write_msg
  callback, so that everyone can have their own square wheel

Apart from that, the API is fairly straightforward:

- platform_msi_create_irq_domain creates an MSI domain that gets
  tagged with DOMAIN_BUS_PLATFORM_MSI

- platform_msi_domain_alloc_irqs allocate MSIs for a given device,
  populating the msi_list

- platform_msi_domain_free_irqs does what is written on the tin

[ tglx: Created a seperate struct platform_msi_desc and added
  	kerneldoc entries ]

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: Yijing Wang <wangyijing@huawei.com>
Cc: Ma Jun <majun258@huawei.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Duc Dang <dhdang@apm.com>
Cc: Hanjun Guo <hanjun.guo@linaro.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Link: http://lkml.kernel.org/r/1438091186-10244-10-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-07-30 00:14:38 +02:00
..
power Merge branches 'acpi-pnp', 'acpi-soc', 'pm-domains' and 'pm-sleep' 2015-07-07 22:48:14 +02:00
regmap Merge remote-tracking branches 'regmap/topic/defaults', 'regmap/topic/irq' and 'regmap/topic/reg-params' into regmap-next 2015-06-17 17:40:08 +01:00
attribute_container.c attribute_container: fix missing blank lines after declarations 2015-03-25 14:35:09 +01:00
base.h driver-core: add asynchronous probing support for drivers 2015-05-20 00:25:24 -07:00
bus.c driver-core: add asynchronous probing support for drivers 2015-05-20 00:25:24 -07:00
cacheinfo.c Merge 4.1-rc7 into driver-core-next 2015-06-08 10:19:40 -07:00
class.c drivers: base: class: Add a blank line after declarations 2015-03-25 14:36:19 +01:00
component.c component: fix bug with legacy API 2014-07-04 18:05:05 +01:00
container.c ACPI / hotplug / driver core: Handle containers in a special way 2013-12-29 15:25:48 +01:00
core.c genirq/MSI: Move msi_list from struct pci_dev to struct device 2015-07-22 18:37:43 +02:00
cpu.c show nohz_full cpus in sysfs 2015-05-20 00:15:09 -07:00
dd.c base:dd - Fix for typo in comment to function driver_deferred_probe_trigger(). 2015-06-01 10:15:17 +09:00
devcoredump.c devcoredump: provide a one-way disable function 2014-11-26 19:40:12 -08:00
devres.c devres: Improve devm_kasprintf()/kvasprintf() support 2014-09-23 23:32:50 -07:00
devtmpfs.c VFS: assorted weird filesystems: d_inode() annotations 2015-04-15 15:06:58 -04:00
dma-coherent.c drivers: dma-coherent: add initialization from device tree 2014-10-14 02:18:12 +02:00
dma-contiguous.c drivers: of: add return value to of_reserved_mem_device_init() 2014-10-29 16:33:14 -07:00
dma-mapping.c drivers: base: dma-mapping: Erase blank space after pointer 2015-03-25 14:36:19 +01:00
driver.c driver core: add missing blank line after declaration 2015-03-25 14:36:30 +01:00
firmware_class.c Fix firmware loader uevent buffer NULL pointer dereference 2015-07-09 11:20:01 -07:00
firmware.c
hypervisor.c
init.c drivers: of/base: move of_init to driver_init 2015-05-26 19:55:56 -07:00
isa.c
Kconfig cma: make default CMA area size zero for x86 2014-12-10 17:41:06 -08:00
Makefile drivers/base: Add MSI domain support for non-PCI devices 2015-07-30 00:14:38 +02:00
map.c drivers: base: map: Use kmalloc_array instead of kmalloc 2015-03-25 14:35:08 +01:00
memory.c mm, hotplug: fix concurrent memory hot-add deadlock 2015-04-14 16:49:00 -07:00
module.c
node.c mm: meminit: initialise a subset of struct pages if CONFIG_DEFERRED_STRUCT_PAGE_INIT is set 2015-06-30 19:44:56 -07:00
pinctrl.c drivers: pinctrl sleep and idle states in the core 2013-06-16 11:56:52 +02:00
platform-msi.c drivers/base: Add MSI domain support for non-PCI devices 2015-07-30 00:14:38 +02:00
platform.c Revert "base/platform: Only insert MEM and IO resources" 2015-06-10 08:38:29 -07:00
property.c Merge branches 'acpi-video', 'device-properties', 'pm-sleep' and 'pm-cpuidle' 2015-06-26 03:30:37 +02:00
soc.c drivers/base: use tabs where possible in code indentation 2015-03-25 14:37:35 +01:00
syscore.c genirq: Simplify wakeup mechanism 2014-09-01 13:48:59 +02:00
topology.c sched/topology: Rename topology_thread_cpumask() to topology_sibling_cpumask() 2015-05-27 15:22:15 +02:00
transport_class.c