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| author | Christophe Lombard <clombard@linux.vnet.ibm.com> | 2017-06-22 15:07:27 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-07-03 15:07:03 +0200 |
| commit | 3ced8d73006321bd2a0412fa0ff4b065a02e7514 (patch) | |
| tree | eb6c13f48f53960574756c5fc7edfe0519f9e443 /drivers/misc/cxl/Kconfig | |
| parent | Merge branch 'fixes' into next (diff) | |
| download | linux-3ced8d73006321bd2a0412fa0ff4b065a02e7514.tar.xz linux-3ced8d73006321bd2a0412fa0ff4b065a02e7514.zip | |
cxl: Export library to support IBM XSL
This patch exports a in-kernel 'library' API which can be called by
other drivers to help interacting with an IBM XSL on a POWER9 system.
The XSL (Translation Service Layer) is a stripped down version of the
PSL (Power Service Layer) used in some cards such as the Mellanox CX5.
Like the PSL, it implements the CAIA architecture, but has a number
of differences, mostly in it's implementation dependent registers.
The XSL also uses a special DMA cxl mode, which uses a slightly
different init sequence for the CAPP and PHB.
Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/misc/cxl/Kconfig')
| -rw-r--r-- | drivers/misc/cxl/Kconfig | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/misc/cxl/Kconfig b/drivers/misc/cxl/Kconfig index b75cf830d08a..93397cb05b15 100644 --- a/drivers/misc/cxl/Kconfig +++ b/drivers/misc/cxl/Kconfig @@ -11,11 +11,16 @@ config CXL_AFU_DRIVER_OPS bool default n +config CXL_LIB + bool + default n + config CXL tristate "Support for IBM Coherent Accelerators (CXL)" depends on PPC_POWERNV && PCI_MSI && EEH select CXL_BASE select CXL_AFU_DRIVER_OPS + select CXL_LIB default m help Select this option to enable driver support for IBM Coherent |