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macintosh/via-cuda: Don't rely on Cuda to end a transfer
authorFinn Thain <fthain@telegraphics.com.au>
Tue, 15 Jan 2019 04:18:56 +0000 (15:18 +1100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 22 Jan 2019 09:21:45 +0000 (10:21 +0100)
commit458c77f3de0edc8a2df1f54ac641823ccbd3ff56
treeac844d3c146c212b2dabd4a9afaefdb73c5a5db7tree | snapshot
parentaefcb7460e0b5f35f72601b7a98eec5ca1639cf2commit | diff
macintosh/via-cuda: Don't rely on Cuda to end a transfer

Certain Cuda transfers have to be ended by the driver. According
to Apple's open source Cuda driver, as found in mkLinux and XNU, this
applies to any "open ended request such as PRAM read". This fixes an
infinite polling loop in cuda_pram_read_byte().

Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/macintosh/via-cuda.c diff | blob | history
Domain: System / Kernel;