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| author | Nicholas Piggin <npiggin@gmail.com> | 2017-09-20 16:56:03 +1000 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2017-09-20 23:25:01 -0500 |
| commit | 5e09fe1f19d3f56b1cebb44439da5b5de6e1fccd (patch) | |
| tree | 159d5c1c26a8068df3ec6cc623f5db7e3bfa8310 /hdata | |
| parent | 5779c11fdc57c4dc474beb00f044f34ec1c58368 (diff) | |
| download | blackbird-skiboot-5e09fe1f19d3f56b1cebb44439da5b5de6e1fccd.tar.gz blackbird-skiboot-5e09fe1f19d3f56b1cebb44439da5b5de6e1fccd.zip | |
core: POWER9 implement OPAL_SIGNAL_SYSTEM_RESET
This implements OPAL_SIGNAL_SYSTEM_RESET, using scom registers to
quiesce the target thread and raise a system reset exception on it.
It has been tested on DD2 with stop0 ESL=0 and ESL=1 shallow power
saving modes.
DD1 is not implemented because it is sufficiently different as to
make support difficult.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[stewart@linux.vnet.ibm.com: fixup hdat_to_dt test]
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'hdata')
| -rw-r--r-- | hdata/hdata.h | 14 | ||||
| -rw-r--r-- | hdata/test/hdata_to_dt.c | 15 |
2 files changed, 15 insertions, 14 deletions
diff --git a/hdata/hdata.h b/hdata/hdata.h index 82479f52..2e4840f4 100644 --- a/hdata/hdata.h +++ b/hdata/hdata.h @@ -36,20 +36,6 @@ extern void vpd_data_parse(struct dt_node *node, extern struct dt_node *find_xscom_for_chip(uint32_t chip_id); extern uint32_t pcid_to_chip_id(uint32_t proc_chip_id); -static __unused bool is_power9n(uint32_t version) -{ - if (PVR_TYPE(version) != PVR_TYPE_P9) - return false; - /* - * Bit 13 tells us: - * 0 = Scale out (aka Nimbus) - * 1 = Scale up (aka Cumulus) - */ - if ((version >> 13) & 1) - return false; - return true; -} - extern struct dt_node *add_core_common(struct dt_node *cpus, const struct sppaca_cpu_cache *cache, const struct sppaca_cpu_timebase *tb, diff --git a/hdata/test/hdata_to_dt.c b/hdata/test/hdata_to_dt.c index 155e41b6..f5979148 100644 --- a/hdata/test/hdata_to_dt.c +++ b/hdata/test/hdata_to_dt.c @@ -98,6 +98,21 @@ struct dt_node *add_ics_node(void) return NULL; } +// Copied from processor.h: +static inline bool is_power9n(uint32_t version) +{ + if (PVR_TYPE(version) != PVR_TYPE_P9) + return false; + /* + * Bit 13 tells us: + * 0 = Scale out (aka Nimbus) + * 1 = Scale up (aka Cumulus) + */ + if ((version >> 13) & 1) + return false; + return true; +} + #include <config.h> #include <bitutils.h> |
