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| author | Nathan Lynch <nathanl@linux.ibm.com> | 2023-02-10 21:41:51 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-02-13 14:35:01 +0300 |
| commit | daa8ab59044610aa8ef2ee45a6c157b5e11635e9 (patch) | |
| tree | 7aecdbb8b89837d1818928c0fef9bbdc59c0f0f7 /usr | |
| parent | cc4b26eab1859fa1a70711872caaf6414809973f (diff) | |
| download | linux-daa8ab59044610aa8ef2ee45a6c157b5e11635e9.tar.xz | |
powerpc/pseries/lpar: add missing RTAS retry status handling
The ibm,get-system-parameter RTAS function may return -2 or 990x,
which indicate that the caller should try again.
pseries_lpar_read_hblkrm_characteristics() ignores this, making it
possible to incorrectly detect TLB block invalidation characteristics
at boot.
Move the RTAS call into a coventional rtas_busy_delay()-based loop.
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Fixes: 1211ee61b4a8 ("powerpc/pseries: Read TLB Block Invalidate Characteristics")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230125-b4-powerpc-rtas-queue-v3-3-26929c8cce78@linux.ibm.com
Diffstat (limited to 'usr')
0 files changed, 0 insertions, 0 deletions