linux-toradex.git/drivers/ntb/hw, branch v4.9.83

ntb: ntb_hw_intel: init peer_addr in struct intel_ntb_dev

2016-11-13T21:48:29+00:00

The peer_addr member of intel_ntb_dev is not set, therefore when
acquiring ntb_peer_db and ntb_peer_spad we only get the offset rather
than the actual physical address. Adding fix to correct that.

Signed-off-by: Dave Jiang 
Acked-by: Allen Hubbe 
Signed-off-by: Jon Mason

NTB: ntb_hw_intel: Fix typo in module parameter descriptions

2016-11-13T21:48:29+00:00

Fix typo in module parameter descriptions.

Signed-off-by: Wei Yongjun 
Acked-by: Allen Hubbe 
Signed-off-by: Jon Mason

NTB: ntb_hw_intel: use local variable pdev

2016-08-05T14:34:13+00:00

Clean up duplicated expression by replacing it with the equivalent local
variable pdev.

Signed-off-by: Allen Hubbe 
Acked-by: Dave Jiang 
Signed-off-by: Jon Mason

NTB: ntb_hw_intel: show BAR size in debugfs info

2016-08-05T14:33:47+00:00

It will be useful to know the hardware configured BAR size to diagnose
issues with NTB memory windows.

Signed-off-by: Allen Hubbe 
Acked-by: Dave Jiang 
Signed-off-by: Jon Mason

NTB: Remove _addr functions from ntb_hw_amd

2016-03-26T15:44:33+00:00

Kernel zero day testing warned about address space confusion.  A virtual
iomem address was used where a physical address is expected.  The
offending functions implement an optional part of the api, so they are
removed.  They can be added later, after testing.

Fixes: a1b3695820aa490e58915d720a1438069813008b

Signed-off-by: Allen Hubbe 
Acked-by: Xiangliang Yu 
Signed-off-by: Jon Mason

NTB: Fix macro parameter conflict with field name

2016-01-22T00:53:10+00:00

If the parameter given to the macro is replaced throughout the macro as
it is evaluated.  The intent is that the macro parameter should replace
the only the first parameter to container_of().  However, the way the
macro was written, it would also inadvertantly replace a structure field
name.  If a parameter of any other name is given to the macro, it will
fail to compile, if the structure does not contain a field of the same
name.  At worst, it will compile, and hide improper access of an
unintended field in the structure.

Change the macro parameter name, so it does not conflict with the
structure field name.

Signed-off-by: Allen Hubbe 
Acked-by: Dave Jiang 
Signed-off-by: Jon Mason

NTB: Add support for AMD PCI-Express Non-Transparent Bridge

2016-01-22T00:51:04+00:00

This adds support for AMD's PCI-Express Non-Transparent Bridge
(NTB) device on the Zeppelin platform. The driver connnects to the
standard NTB sub-system interface, with modification to add hooks
for power management in a separate patch. The AMD NTB device has 3
memory windows, 16 doorbell, 16 scratch-pad registers, and supports
up to 16 PCIe lanes running a Gen3 speeds.

Signed-off-by: Xiangliang Yu 
Reviewed-by: Allen Hubbe 
Signed-off-by: Jon Mason

NTB: Clear property bits in BAR value

2016-01-11T14:51:17+00:00

The lower bits read from a BAR register will contain property bits
that we do not care about. Clear those so that we can use the BAR
values for limit and xlat registers.

Reported-by: Conrad Meyer 
Signed-off-by: Dave Jiang 
Signed-off-by: Jon Mason

NTB: unify translation addresses

2015-11-08T21:11:21+00:00

There is no need for the upstream and downstream addresses to be different
for the NTB configs. Go to using a single set of address. It is still
possible to configure them differently using module parameter override
however.

Signed-off-by: Dave Jiang 
Acked and Tested-by: Allen Hubbe 
Signed-off-by: Jon Mason

NTB: Fix range check on memory window index

2015-09-07T19:27:12+00:00

The range check must exclude the upper bound.

Signed-off-by: Allen Hubbe 
Signed-off-by: Jon Mason