user/sven/linux.git/drivers/dma-buf, branch v4.4.243

dma-buf/fence: add fence_wait_any_timeout function v2

2015-10-30T05:16:16Z

Waiting for the first fence in an array of fences to signal. This is useful for device driver specific resource managers and also Vulkan needs something similar. v2: more parameter checks, handling for timeout==0, remove NULL entry support, better callback removal. Signed-off-by: Christian König Reviewed-by: Alex Deucher Reviewed-by: Maarten Lankhorst

dma-buf: Minor coding style fixes

2015-05-21T05:59:59Z

- WARNING: Missing a blank line after declarations - WARNING: line over 80 characters - WARNING: please, no space before tabs Signed-off-by: Jagan Teki Cc: Sumit Semwal Signed-off-by: Sumit Semwal

dma-buf: add ref counting for module as exporter

2015-05-13T09:05:57Z

Add reference counting on a kernel module that exports dma-buf and implements its operations. This prevents the module from being unloaded while DMABUF file is in use. The original patch [1] was submitted by Tomasz Stanislawski, but this is a simpler way to do it. v3: call module_put() as late as possible, per gregkh's comment. v2: move owner to struct dma_buf, and use DEFINE_DMA_BUF_EXPORT_INFO macro to simplify the change. Acked-by: Greg Kroah-Hartman Signed-off-by: Sumit Semwal [1]: https://lkml.org/lkml/2012/8/8/163

dma-buf: cleanup dma_buf_export() to make it easily extensible

2015-04-21T09:17:16Z

At present, dma_buf_export() takes a series of parameters, which makes it difficult to add any new parameters for exporters, if required. Make it simpler by moving all these parameters into a struct, and pass the struct * as parameter to dma_buf_export(). While at it, unite dma_buf_export_named() with dma_buf_export(), and change all callers accordingly. Reviewed-by: Maarten Lankhorst Reviewed-by: Daniel Thompson Acked-by: Mauro Carvalho Chehab Acked-by: Dave Airlie Signed-off-by: Sumit Semwal

reservation: Remove shadowing local variable 'ret'

2015-01-22T10:59:31Z

It was causing the return value of fence_is_signaled to be ignored, making reservation objects signal too early. Cc: stable@vger.kernel.org Reviewed-by: Maarten Lankhorst Reviewed-by: Alex Deucher Signed-off-by: Michel Dänzer Signed-off-by: Sumit Semwal

dma-buf/fence: don't wait when specified timeout is zero

2015-01-22T05:58:51Z

When specified timeout is zero for fence_wait_timeout, just check if the fence is signaled or not without wait. Signed-off-by: Jammy Zhou Reviewed-by: Christian König Reviewed-By: Maarten Lankhorst Signed-off-by: Sumit Semwal

reservation: wait only with non-zero timeout specified (v3)

2015-01-22T05:57:57Z

When the timeout value passed to reservation_object_wait_timeout_rcu is zero, no wait should be done if the fences are not signaled. Return '1' for idle and '0' for busy if the specified timeout is '0' to keep consistent with the case of non-zero timeout. v2: call fence_put if not signaled in the case of timeout==0 v3: switch to reservation_object_test_signaled_rcu Signed-off-by: Jammy Zhou Reviewed-by: Christian König Reviewed-by: Alex Deucher Reviewed-By: Maarten Lankhorst Signed-off-by: Sumit Semwal

treewide: Fix typo in Documentation/DocBook/device-drivers

2014-11-03T16:53:34Z

This patch fix speeling typo found in html files within Documentation/DocBook/device-drivers. It is because html files are generated from comments in source, so I have to fix comments in the source. Signed-off-by: Masanari Iida Acked-by: Randy Dunlap Acked-by: Wolfram Sang Signed-off-by: Jonathan Corbet

dma-buf: don't open-code atomic_long_read()

2014-10-09T06:39:07Z

... not to mention that even atomic_long_read() is too low-level here - there's file_count(). Signed-off-by: Al Viro

dma-buf/fence: Fix a kerneldoc warning

2014-08-28T06:29:09Z

kerneldoc doesn't know how to parse variables, so don't let it try. Signed-off-by: Thierry Reding Signed-off-by: Sumit Semwal