diff options
| 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 23:07:03 +1000 |
| commit | 3ced8d73006321bd2a0412fa0ff4b065a02e7514 (patch) | |
| tree | eb6c13f48f53960574756c5fc7edfe0519f9e443 /arch/powerpc/include/asm/opal-api.h | |
| parent | 218ea31039e84901b449c3769035456688f6e17d (diff) | |
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 'arch/powerpc/include/asm/opal-api.h')
| -rw-r--r-- | arch/powerpc/include/asm/opal-api.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h index 0b543f0f54f5..ef930ba500f9 100644 --- a/arch/powerpc/include/asm/opal-api.h +++ b/arch/powerpc/include/asm/opal-api.h @@ -948,6 +948,7 @@ enum { OPAL_PHB_CAPI_MODE_SNOOP_OFF = 2, OPAL_PHB_CAPI_MODE_SNOOP_ON = 3, OPAL_PHB_CAPI_MODE_DMA = 4, + OPAL_PHB_CAPI_MODE_DMA_TVT1 = 5, }; /* OPAL I2C request */ |