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3 Commits

Author SHA1 Message Date
Greg Kurz d1f75a9684 ocxl/afu_irq: Don't include <asm/pnv-ocxl.h> 
The AFU irq code doesn't need to reach out to the platform.

Signed-off-by: Greg Kurz <groug@kaod.org>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
 2018-12-20 22:21:20 +11:00
Frederic Barrat 92add22e84 ocxl: Add trace points 
Define a few trace points so that we can use the standard tracing
mechanism for debug and/or monitoring.

Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
 2018-01-24 11:42:59 +11:00
Frederic Barrat aeddad1760 ocxl: Add AFU interrupt support 
Add user APIs through ioctl to allocate, free, and be notified of an
AFU interrupt.

For opencapi, an AFU can trigger an interrupt on the host by sending a
specific command targeting a 64-bit object handle. On POWER9, this is
implemented by mapping a special page in the address space of a
process and a write to that page will trigger an interrupt.

Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
 2018-01-24 11:42:58 +11:00