iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
968,260 Commits 104 Branches 1,843 Tags
Commit Graph

4 Commits

Author SHA1 Message Date
Christophe Leroy
01776f070f powerpc/32s: Use relocation offset when setting early hash table 
When calling early_hash_table(), the kernel hasn't been yet
relocated to its linking address, so data must be addressed
with relocation offset.

Add relocation offset to write into Hash in early_hash_table().

Fixes: 69a1593abdbc ("powerpc/32s: Setup the early hash table at all time.")
Reported-by: Erhard Furtner <erhard_f@mailbox.org>
Reported-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Tested-by: Serge Belyshev <belyshev@depni.sinp.msu.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/9e225a856a8b22e0e77587ee22ab7a2f5bca8753.1604740029.git.christophe.leroy@csgroup.eu
 2020-11-08 20:38:05 +11:00
Christophe Leroy
11522448e6 powerpc/603: Always fault when _PAGE_ACCESSED is not set 
The kernel expects pte_young() to work regardless of CONFIG_SWAP.

Make sure a minor fault is taken to set _PAGE_ACCESSED when it
is not already set, regardless of the selection of CONFIG_SWAP.

Fixes: 84de6ab0e904 ("powerpc/603: don't handle PAGE_ACCESSED in TLB miss handlers.")
Cc: stable@vger.kernel.org
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/a44367744de54e2315b2f1a8cbbd7f88488072e0.1602342806.git.christophe.leroy@csgroup.eu
 2020-11-05 23:34:07 +11:00
Christophe Leroy
865418795a powerpc/32s: Remove #ifdef CONFIG_PPC_BOOK3S_32 in head_book3s_32.S 
head_book3s_32.S is only built when CONFIG_PPC_BOOK3S_32 is selected.

Remove all conditions based on CONFIG_PPC_BOOK3S_32 in the file.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1b68632425d8866d147aea9005004e4594672211.1601975100.git.christophe.leroy@csgroup.eu
 2020-10-08 21:17:15 +11:00
Christophe Leroy
533090e5a9 powerpc/32s: Rename head_32.S to head_book3s_32.S 
Unlike PPC64 which had a single head_64.S, PPC32 are multiple ones.
There is the head_32.S, selected by default based on the value of BITS
and overridden based on some CONFIG_ values. This leads to thinking
that it may be selected by different types of PPC32 platform but
indeed it ends up being selected by book3s/32 only.

Make that explicit by:
- Not doing any default selection based on BITS.
- Renaming head_32.S to head_book3s_32.S.
- Get head_book3s_32.S selected only by CONFIG_PPC_BOOK3S_32.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
[mpe: Fix head_$(BITS).o reference in arch/powerpc/Makefile]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/319d379f696412681c66a987cc75e6abf8f958d2.1601975100.git.christophe.leroy@csgroup.eu
 2020-10-08 21:17:14 +11:00