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| author | Nicholas Piggin <npiggin@gmail.com> | 2021-10-01 20:46:48 +1000 |
|---|---|---|
| committer | Vasant Hegde <hegdevasant@linux.vnet.ibm.com> | 2021-10-02 10:30:27 +0530 |
| commit | 0b18d28b6c3d324328136acab13a99ffe2ad3377 (patch) | |
| tree | 9d4d05a7592313711121c3c93fd42dbca702858b | |
| parent | dda72e7ff60c36ed5ed721ad2b7f6277f7a9363f (diff) | |
| download | skiboot-0b18d28b6c3d324328136acab13a99ffe2ad3377.zip skiboot-0b18d28b6c3d324328136acab13a99ffe2ad3377.tar.gz skiboot-0b18d28b6c3d324328136acab13a99ffe2ad3377.tar.bz2 | |
external/mambo: Updates POWER9 SIM_CTRL1 to remove hardware atomic RC
Update SIM_CTRL1 bits to set ARC0/1, which disables atomic RC updates in
hardware which matches implementation.
Comment some remaining quirks with the P9 configuration.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
| -rw-r--r-- | external/mambo/skiboot.tcl | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/external/mambo/skiboot.tcl b/external/mambo/skiboot.tcl index 8038d2a..68bedbc 100644 --- a/external/mambo/skiboot.tcl +++ b/external/mambo/skiboot.tcl @@ -135,8 +135,11 @@ if { $default_config == "PEGASUS" } { if { $default_config == "P9" } { # PVR configured for POWER9 DD2.3 Scale out 24 Core (ie SMT4) + # This still is not configured with LPAR-per-thread, which will make + # multi-thread KVM not work properly. And possibly even small-core is + # not set correctly either. myconf config processor/initial/PVR 0x4e1203 - myconf config processor/initial/SIM_CTRL1 0x4228301710000000 + myconf config processor/initial/SIM_CTRL1 0x42283c1710000000 if { $mconf(numa) } { myconf config memory_region_id_shift 45 |