openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity
linux/drivers/base
History
Jacopo Mondi 60695be2bb dma-mapping: postpone cpu addr translation on mmap 
Postpone calling virt_to_page() translation on memory locations not
guaranteed to be backed by a struct page.  Try first to map memory from
the device coherent memory pool, then perform translation if that fails.

On some architectures, specifically SH when configured with the SPARSEMEM
memory model, assuming a struct page is always assigned to a memory
address lead to unexpected hangs during the virtual to page address
translation. This patch fixes that specific issue but applies in the
general case too.

Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
 		2018-04-23 14:44:24 +02:00
..
firmware_loader firmware: add firmware_request_cache() to help with cache on reboot 2018-03-22 18:33:26 +01:00
power PM / wakeirq: Add wakeup name to dedicated wake irqs 2018-02-26 23:23:37 +01:00
regmap Merge remote-tracking branches 'regmap/topic/debugfs' and 'regmap/topic/mmio-clk' into regmap-next 2018-03-12 09:50:42 -07:00
test driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
Kconfig drm/graphics pull request for v4.16-rc1 2018-02-01 17:48:47 -08:00
Makefile Driver core patches for 4.17-rc1 2018-04-04 19:41:45 -07:00
arch_topology.c Revert "base: arch_topology: fix section mismatch build warnings" 2018-03-15 14:36:20 +01:00
attribute_container.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
base.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bus.c drivers: base: omit redundant interations 2017-12-18 16:47:27 +01:00
cacheinfo.c Merge 4.15-rc6 into driver-core-next 2018-01-02 14:56:51 +01:00
class.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
component.c component: add debugfs support 2017-12-18 16:51:11 +01:00
container.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
core.c driver core: Introduce device links reference counting 2018-02-27 18:10:42 +01:00
cpu.c driver core: cpu: use put_device() if device_register fail 2018-03-15 14:37:04 +01:00
dd.c drivers: base: remove check for callback in coredump_store() 2018-03-23 18:08:02 +01:00
devcon.c drivers: base: Unified device connection lookup 2018-03-22 13:10:29 +01:00
devcoredump.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
devres.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
devtmpfs.c kernel: add ksys_unshare() helper; remove in-kernel calls to sys_unshare() 2018-04-02 20:16:06 +02:00
dma-coherent.c dma-coherent: clarify dma_mmap_from_dev_coherent documentation 2018-04-23 14:44:17 +02:00
dma-contiguous.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
dma-mapping.c dma-mapping: postpone cpu addr translation on mmap 2018-04-23 14:44:24 +02:00
driver.c drivers: base: omit redundant interations 2017-12-18 16:47:27 +01:00
firmware.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
hypervisor.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
init.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
isa.c Merge 4.15-rc3 into driver-core-next 2017-12-11 08:50:05 +01:00
map.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
memory.c mm: check __highest_present_section_nr directly in memory_dev_init() 2018-04-11 10:28:31 -07:00
module.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
node.c mm/memory_hotplug: optimize memory hotplug 2018-04-05 21:36:25 -07:00
pinctrl.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
platform-msi.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
platform.c driver core: platform: use put_device() if device_register fail 2018-03-15 14:37:04 +01:00
property.c device property: Constify device_get_match_data() 2018-02-12 10:41:11 +01:00
soc.c base: soc: use put_device() instead of kfree() 2018-03-15 14:37:03 +01:00
syscore.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
topology.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
transport_class.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00