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| author | Ryan Grimm <grimm@linux.vnet.ibm.com> | 2014-09-29 23:51:35 -0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-09-30 14:45:48 +1000 |
| commit | f68bd30f5bc58a21533d834b315f880bfb54e0db (patch) | |
| tree | 53f349a7e2bff9475cbaad2d8091f8eb37eb5d0b /include | |
| parent | 8b925076b139a973b25ef88d3d701a810b38f1c0 (diff) | |
| download | skiboot-f68bd30f5bc58a21533d834b315f880bfb54e0db.zip skiboot-f68bd30f5bc58a21533d834b315f880bfb54e0db.tar.gz skiboot-f68bd30f5bc58a21533d834b315f880bfb54e0db.tar.bz2 | |
phb3/capi: Add two new modes to opal_pci_set_phb_capi_mode
For user initiated capp recovery, provide a mode to turn snoops off. The perst
alone does not turn snoops off and we need to do this as part of the capp
recovery procedure before reinitializing the phb.
A second mode turns snoops back on after recovery. The driver needs to do this
after it reinitializes the PSL otherwise tlbies could come in before the psl is
initialized. Also write 0 to capp error status and control as part of the
recovery procedure.
Put modes as flag defines in opal.h so the driver can pick them up.
Add a dt property "ibm,capi-modes" which tells the driver which modes sapphire
supports. For backwards compatibility with older opals. Also, the driver can
disable reset in sysfs if not supported.
Move the mode checking into phb3.c so it's all in one place.
Signed-off-by: Ryan Grimm <grimm@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/opal.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/opal.h b/include/opal.h index 99a3335..7046fb2 100644 --- a/include/opal.h +++ b/include/opal.h @@ -871,6 +871,11 @@ struct opal_sg_list { #define OPAL_DUMP_REGION_OS_START 0x80 #define OPAL_DUMP_REGION_OS_END 0xFF +/* CAPI flags */ +#define OPAL_PHB_MODE_PCIE 0x00000000 +#define OPAL_PHB_MODE_CAPI 0x00000001 +#define OPAL_PHB_MODE_SNOOP_OFF 0x00000002 +#define OPAL_PHB_MODE_SNOOP_ON 0x00000004 /****** Internal **********/ #include <skiboot.h> |