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authorNicholas Piggin <npiggin@gmail.com>2019-06-22 23:15:35 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2019-07-02 21:39:20 +1000
commit1582009113bc1336d4e54de1d94014ca3569c483 (patch)
treeeaa40233cd006cd0ff16e26c5114a301a5783cb0
parentd064151fd33b1b0ebeb732ae978cb3587e934ff9 (diff)
downloadlinux-1582009113bc1336d4e54de1d94014ca3569c483.tar.bz2
powerpc/64s/exception: move paca save area offsets into exception-64s.S
No generated code change. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
-rw-r--r--arch/powerpc/include/asm/exception-64s.h17
-rw-r--r--arch/powerpc/kernel/exceptions-64s.S22
2 files changed, 25 insertions, 14 deletions
diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
index 3585e1d7e898..40d114e69cbe 100644
--- a/arch/powerpc/include/asm/exception-64s.h
+++ b/arch/powerpc/include/asm/exception-64s.h
@@ -36,22 +36,11 @@
*/
#include <asm/feature-fixups.h>
-/* PACA save area offsets (exgen, exmc, etc) */
-#define EX_R9 0
-#define EX_R10 8
-#define EX_R11 16
-#define EX_R12 24
-#define EX_R13 32
-#define EX_DAR 40
-#define EX_DSISR 48
-#define EX_CCR 52
-#define EX_CFAR 56
-#define EX_PPR 64
+/* PACA save area size in u64 units (exgen, exmc, etc) */
#if defined(CONFIG_RELOCATABLE)
-#define EX_CTR 72
-#define EX_SIZE 10 /* size in u64 units */
+#define EX_SIZE 10
#else
-#define EX_SIZE 9 /* size in u64 units */
+#define EX_SIZE 9
#endif
/*
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 9b60fa040aa6..4dfccc2efc95 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -21,6 +21,28 @@
#include <asm/feature-fixups.h>
#include <asm/kup.h>
+/* PACA save area offsets (exgen, exmc, etc) */
+#define EX_R9 0
+#define EX_R10 8
+#define EX_R11 16
+#define EX_R12 24
+#define EX_R13 32
+#define EX_DAR 40
+#define EX_DSISR 48
+#define EX_CCR 52
+#define EX_CFAR 56
+#define EX_PPR 64
+#if defined(CONFIG_RELOCATABLE)
+#define EX_CTR 72
+.if EX_SIZE != 10
+ .error "EX_SIZE is wrong"
+.endif
+#else
+.if EX_SIZE != 9
+ .error "EX_SIZE is wrong"
+.endif
+#endif
+
/*
* We're short on space and time in the exception prolog, so we can't
* use the normal LOAD_REG_IMMEDIATE macro to load the address of label.