Fix get_saved_sp for 64bit address space. Simplify set_save_sp.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Thiemo Seufer <ths@networkno.de>

1 files changed, 9 insertions, 5 deletions

diff --git a/include/asm-mips/stackframe.h b/include/asm-mips/stackframe.h
index de303e96260e..a8919dcc93c8 100644
--- a/include/asm-mips/stackframe.h
+++ b/include/asm-mips/stackframe.h
@@ -90,24 +90,28 @@
 #ifdef CONFIG_32BIT
                 mfc0    \temp, CP0_CONTEXT
                 srl     \temp, 23
-                LONG_S  \stackp, kernelsp(\temp)
 #endif
 #if defined(CONFIG_64BIT) && !defined(CONFIG_BUILD_ELF64)
                 lw      \temp, TI_CPU(gp)
                 dsll    \temp, 3
-                lui     \temp2, %hi(kernelsp)
-                daddu   \temp, \temp2
-                LONG_S  \stackp, %lo(kernelsp)(\temp)
 #endif
 #if defined(CONFIG_64BIT) && defined(CONFIG_BUILD_ELF64)
                 MFC0    \temp, CP0_CONTEXT
                 dsrl    \temp, 23
-                LONG_S  \stackp, kernelsp(\temp)
 #endif
+                LONG_S  \stackp, kernelsp(\temp)
                 .endm
 #else
                 .macro  get_saved_sp    /* Uniprocessor variation */
+#if defined(CONFIG_64BIT) && defined(CONFIG_BUILD_ELF64)
+                lui     k1, %highest(kernelsp)
+                daddiu  k1, %higher(kernelsp)
+                dsll    k1, k1, 16
+                daddiu  k1, %hi(kernelsp)
+                dsll    k1, k1, 16
+#else
                 lui     k1, %hi(kernelsp)
+#endif
                 LONG_L  k1, %lo(kernelsp)(k1)
                 .endm