Vladimir Murzin c41f9ea998 drivers: dma-coherent: Account dma_pfn_offset when used with device tree ...

dma_declare_coherent_memory() and friends are designed to account
difference in CPU and device addresses. However, when it is used with
reserved memory regions there is assumption that CPU and device have
the same view on address space. This assumption gets invalid when
reserved memory for coherent DMA allocations is referenced by device
with non-empty "dma-range" property.

Simply feeding device address as rmem->base + dev->dma_pfn_offset
would not work due to reserved memory region can be shared, so this
patch turns device address to be expressed with help of CPU address
and device's dma_pfn_offset in case memory reservation has been done
via device tree; non device tree users continue to use the old scheme.

Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Roger Quadros <rogerq@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Tested-by: Andras Szemzo <sza@esh.hu>
Tested-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

2017-06-28 06:55:02 -07:00

..

power

Merge branches 'intel_pstate' and 'pm-sleep'

2017-06-09 01:25:16 +02:00

regmap

Merge remote-tracking branches 'regmap/topic/doc' and 'regmap/topic/rbtree' into regmap-next

2017-02-03 12:34:59 +01:00

test

driver core: test_async: fix up typo found by 0-day

2016-11-29 22:06:42 +01:00

attribute_container.c

attribute_container: Fix typo

2016-08-31 15:13:56 +02:00

base.h

Revert "driver core: Add deferred_probe attribute to devices in sysfs"

2017-01-14 14:09:03 +01:00

bus.c

driver core: bus: use to_subsys_private and to_device_private_bus

2016-02-09 17:25:27 -08:00

cacheinfo.c

Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2016-12-22 09:25:45 -08:00

class.c

driver core: class: add class_groups support

2016-11-29 21:12:12 +01:00

component.c

Merge 4.5-rc4 into driver-core-next

2016-02-14 14:29:55 -08:00

container.c

…

core.c

driver core: don't initialize 'parent' in device_add()

2017-04-08 18:27:39 +02:00

cpu.c

CPU / PM: expose pm_qos_resume_latency for CPUs

2017-01-30 11:05:29 +01:00

dd.c

of/acpi: Configure dma operations at probe time for platform/amba/pci bus devices

2017-04-20 16:31:06 +02:00

devcoredump.c

driver core: devcoredump: convert to use class_groups

2016-11-29 21:12:12 +01:00

devres.c

devres: add devm_alloc_percpu()

2016-11-15 22:34:25 -05:00

devtmpfs.c

statx: Add a system call to make enhanced file info available

2017-03-02 20:51:15 -05:00

dma-coherent.c

drivers: dma-coherent: Account dma_pfn_offset when used with device tree

2017-06-28 06:55:02 -07:00

dma-contiguous.c

cma: Store a name in the cma structure

2017-04-18 20:41:12 +02:00

dma-mapping.c

dma-mapping: replace dmam_alloc_noncoherent with dmam_alloc_attrs

2017-06-28 06:55:00 -07:00

driver.c

…

firmware_class.c

firmware: fix NULL pointer dereference in __fw_load_abort()

2017-01-27 09:19:48 +01:00

firmware.c

…

hypervisor.c

…

init.c

…

isa.c

isa: Call isa_bus_init before dependent ISA bus drivers register

2016-06-17 20:47:11 -07:00

Kconfig

Driver core patches for 4.10-rc1

2016-12-13 11:42:18 -08:00

Makefile

driver-core: add test module for asynchronous probing

2016-11-10 17:28:16 +01:00

map.c

…

memory.c

memory-hotplug: use dev_online for memhp_auto_online

2017-02-24 17:46:56 -08:00

module.c

base: make module_create_drivers_dir race-free

2016-06-15 19:21:31 -07:00

node.c

treewide: replace obsolete _refok by __ref

2016-08-02 17:31:41 -04:00

pinctrl.c

driver: base: pinctrl: return error from pinctrl_bind_pins()

2016-09-13 23:02:59 +02:00

platform-msi.c

platform-msi: Make platform_msi_create_device_domain() ACPI aware

2017-04-07 10:52:19 +01:00

platform.c

of: Add function for generating a DT modalias with a newline

2017-03-22 14:56:13 -05:00

property.c

device property: Read strings using string array reading functions

2017-03-29 22:59:40 +02:00

soc.c

base: soc: Allow early registration of a single SoC device

2017-03-29 21:43:26 +02:00

syscore.c

…

topology.c

drivers base/topology: Convert to hotplug state machine

2016-11-09 23:45:29 +01:00

transport_class.c

…