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| author | Haren Myneni <haren@linux.ibm.com> | 2020-04-16 09:00:06 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-04-20 09:53:00 +0300 |
| commit | c20e1e299d936c7f3089c9be99fa784e57da5b7f (patch) | |
| tree | ebab334bab9eaa078101f5a8e4bbf313cbbb86d1 /arch/powerpc/platforms/powernv/vas-window.c | |
| parent | 73a8077938824bf13dd9b8557545be91012ffc9c (diff) | |
| download | linux-c20e1e299d936c7f3089c9be99fa784e57da5b7f.tar.xz | |
powerpc/vas: Alloc and setup IRQ and trigger port address
Allocate a xive irq on each chip with a vas instance. The NX coprocessor
raises a host CPU interrupt via vas if it encounters page fault on user
space request buffer. Subsequent patches register the trigger port with
the NX coprocessor, and create a vas fault handler for this interrupt
mapping.
Signed-off-by: Haren Myneni <haren@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1587016806.2275.1050.camel@hbabu-laptop
Diffstat (limited to 'arch/powerpc/platforms/powernv/vas-window.c')
0 files changed, 0 insertions, 0 deletions