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authorDavid S. Miller <davem@davemloft.net>2016-03-19 21:05:24 -0400
committerDavid S. Miller <davem@davemloft.net>2016-03-19 21:05:24 -0400
commitc78a85a8430e35aecd53e190a2f6b999062b1037 (patch)
treefbd69827579db437492fb77b5faa53814114bed3 /arch/powerpc/include/asm/sections.h
parent133800d1f0288b9ddfc0d0aded10d9efa82d5b8c (diff)
parentde06dbfa7861c9019eedefc0c356ba86e5098f1b (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Diffstat (limited to 'arch/powerpc/include/asm/sections.h')
-rw-r--r--arch/powerpc/include/asm/sections.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/sections.h b/arch/powerpc/include/asm/sections.h
index a5e930aca804..abf5866e08c6 100644
--- a/arch/powerpc/include/asm/sections.h
+++ b/arch/powerpc/include/asm/sections.h
@@ -22,6 +22,18 @@ static inline int in_kernel_text(unsigned long addr)
return 0;
}
+static inline unsigned long kernel_toc_addr(void)
+{
+ /* Defined by the linker, see vmlinux.lds.S */
+ extern unsigned long __toc_start;
+
+ /*
+ * The TOC register (r2) points 32kB into the TOC, so that 64kB of
+ * the TOC can be addressed using a single machine instruction.
+ */
+ return (unsigned long)(&__toc_start) + 0x8000UL;
+}
+
static inline int overlaps_interrupt_vector_text(unsigned long start,
unsigned long end)
{