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authorLinus Torvalds <torvalds@linux-foundation.org>2021-01-10 11:34:33 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-01-10 11:34:33 -0800
commitb3cd1a16cc8829776523fcd114299373be4e5187 (patch)
tree64ccc1f24275c1e84fa2aaec1836ff2a59bd4a61
parenta440e4d7618cbe232e4f96dea805bcb89f79b18c (diff)
parent3ce47d95b7346dcafd9bed3556a8d072cb2b8571 (diff)
downloadlinux-stericsson-b3cd1a16cc8829776523fcd114299373be4e5187.tar.gz
Merge tag 'powerpc-5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman: - A fix for machine check handling with VMAP stack on 32-bit. - A clang build fix. Thanks to Christophe Leroy and Nathan Chancellor. * tag 'powerpc-5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc: Handle .text.{hot,unlikely}.* in linker script powerpc/32s: Fix RTAS machine check with VMAP stack
-rw-r--r--arch/powerpc/kernel/head_book3s_32.S9
-rw-r--r--arch/powerpc/kernel/vmlinux.lds.S2
2 files changed, 10 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/head_book3s_32.S b/arch/powerpc/kernel/head_book3s_32.S
index 349bf3f0c3af..858fbc8b19f3 100644
--- a/arch/powerpc/kernel/head_book3s_32.S
+++ b/arch/powerpc/kernel/head_book3s_32.S
@@ -260,10 +260,19 @@ __secondary_hold_acknowledge:
MachineCheck:
EXCEPTION_PROLOG_0
#ifdef CONFIG_PPC_CHRP
+#ifdef CONFIG_VMAP_STACK
+ mtspr SPRN_SPRG_SCRATCH2,r1
+ mfspr r1, SPRN_SPRG_THREAD
+ lwz r1, RTAS_SP(r1)
+ cmpwi cr1, r1, 0
+ bne cr1, 7f
+ mfspr r1, SPRN_SPRG_SCRATCH2
+#else
mfspr r11, SPRN_SPRG_THREAD
lwz r11, RTAS_SP(r11)
cmpwi cr1, r11, 0
bne cr1, 7f
+#endif
#endif /* CONFIG_PPC_CHRP */
EXCEPTION_PROLOG_1 for_rtas=1
7: EXCEPTION_PROLOG_2
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 0318ba436f34..8e0b1298bf19 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -85,7 +85,7 @@ SECTIONS
ALIGN_FUNCTION();
#endif
/* careful! __ftr_alt_* sections need to be close to .text */
- *(.text.hot TEXT_MAIN .text.fixup .text.unlikely .fixup __ftr_alt_* .ref.text);
+ *(.text.hot .text.hot.* TEXT_MAIN .text.fixup .text.unlikely .text.unlikely.* .fixup __ftr_alt_* .ref.text);
#ifdef CONFIG_PPC64
*(.tramp.ftrace.text);
#endif