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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
commit03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch)
treefa581f6dc1c0596391690d1f67eceef3af8246dc /arch/arm64/include/asm/assembler.h
parentd4e493caf788ef44982e131ff9c786546904d934 (diff)
Linux-libre 4.5-gnu
Diffstat (limited to 'arch/arm64/include/asm/assembler.h')
-rw-r--r--arch/arm64/include/asm/assembler.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index 12eff928e..bb7b72734 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -193,6 +193,17 @@ lr .req x30 // link register
str \src, [\tmp, :lo12:\sym]
.endm
+ /*
+ * @sym: The name of the per-cpu variable
+ * @reg: Result of per_cpu(sym, smp_processor_id())
+ * @tmp: scratch register
+ */
+ .macro this_cpu_ptr, sym, reg, tmp
+ adr_l \reg, \sym
+ mrs \tmp, tpidr_el1
+ add \reg, \reg, \tmp
+ .endm
+
/*
* Annotate a function as position independent, i.e., safe to be called before
* the kernel virtual mapping is activated.