powerpc/vas: Add platform specific user window operations

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PowerNV uses registers to open/close VAS windows, and getting the
paste address. Whereas the hypervisor calls are used on PowerVM.

This patch adds the platform specific user space window operations
and register with the common VAS user space interface.

Signed-off-by: Haren Myneni <haren@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/f85091f4ace67f951ac04d60394d67b21e2f5d3c.camel@linux.ibm.com

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Haren Myneni 2021-06-17 13:31:06 -07:00 • committed by Michael Ellerman

parent 06c6fad9bf

commit 1a0d0d5ed5

4 changed files with 91 additions and 25 deletions

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16

arch/powerpc/include/asm/vas.h

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53

arch/powerpc/platforms/book3s/vas-api.c

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45

arch/powerpc/platforms/powernv/vas-window.c

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2

arch/powerpc/platforms/powernv/vas.h

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