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| author | Michael Ellerman <mpe@ellerman.id.au> | 2022-03-04 17:12:22 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-03-08 22:07:41 +1100 |
| commit | 1a76e520ee1831a81dabf8a9a58c6453f700026e (patch) | |
| tree | dfc67c682b9e8e09cfef3ccaaef6117871f01dce /arch/powerpc/platforms | |
| parent | 76222808fc253cb9ea66c3e0e8d1946933f25b70 (diff) | |
| download | linux-1a76e520ee1831a81dabf8a9a58c6453f700026e.tar.gz | |
powerpc/64e: Tie PPC_BOOK3E_64 to PPC_FSL_BOOK3E
Since the IBM A2 CPU support was removed, see commit
fb5a515704d7 ("powerpc: Remove platforms/wsp and associated pieces"),
the only 64-bit Book3E CPUs we support are Freescale (NXP) ones.
However our Kconfig still allows configurating a kernel that has 64-bit
Book3E support, but no Freescale CPU support enabled. Such a kernel
would never boot, it doesn't know about any CPUs.
It also causes build errors, as reported by lkp, because
PPC_BARRIER_NOSPEC is not enabled in such a configuration:
powerpc64-linux-ld: arch/powerpc/net/bpf_jit_comp64.o:(.toc+0x0):
undefined reference to `powerpc_security_features'
To fix this, force PPC_FSL_BOOK3E to be selected whenever we are
building a 64-bit Book3E kernel.
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220304061222.2478720-1-mpe@ellerman.id.au
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/Kconfig.cputype | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 87bc1929ee5a..e2e1fec91c6e 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -107,6 +107,7 @@ config PPC_BOOK3S_64 config PPC_BOOK3E_64 bool "Embedded processors" + select PPC_FSL_BOOK3E select PPC_FPU # Make it a choice ? select PPC_SMP_MUXED_IPI select PPC_DOORBELL @@ -295,7 +296,7 @@ config FSL_BOOKE config PPC_FSL_BOOK3E bool select ARCH_SUPPORTS_HUGETLBFS if PHYS_64BIT || PPC64 - select FSL_EMB_PERFMON + imply FSL_EMB_PERFMON select PPC_SMP_MUXED_IPI select PPC_DOORBELL select PPC_KUEP |