4 files changed, 33 insertions, 20 deletions

diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
index 0a337e4a8370..c3d20ba6eb86 100644
--- a/arch/xtensa/include/asm/Kbuild
+++ b/arch/xtensa/include/asm/Kbuild
@@ -9,6 +9,7 @@ generic-y += errno.h
 generic-y += exec.h
 generic-y += fcntl.h
 generic-y += hardirq.h
+generic-y += hash.h
 generic-y += ioctl.h
 generic-y += irq_regs.h
 generic-y += kdebug.h
@@ -17,7 +18,9 @@ generic-y += kvm_para.h
 generic-y += linkage.h
 generic-y += local.h
 generic-y += local64.h
+generic-y += mcs_spinlock.h
 generic-y += percpu.h
+generic-y += preempt.h
 generic-y += resource.h
 generic-y += scatterlist.h
 generic-y += sections.h
@@ -27,5 +30,3 @@ generic-y += termios.h
 generic-y += topology.h
 generic-y += trace_clock.h
 generic-y += xor.h
-generic-y += preempt.h
-generic-y += hash.h
diff --git a/arch/xtensa/include/asm/io.h b/arch/xtensa/include/asm/io.h
index 2a042d430c25..74944207167e 100644
--- a/arch/xtensa/include/asm/io.h
+++ b/arch/xtensa/include/asm/io.h
@@ -25,7 +25,7 @@
 
 #ifdef CONFIG_MMU
 
-#if XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY && CONFIG_OF
+#if XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY && defined(CONFIG_OF)
 extern unsigned long xtensa_kio_paddr;
 
 static inline unsigned long xtensa_get_kio_paddr(void)
diff --git a/arch/xtensa/include/asm/traps.h b/arch/xtensa/include/asm/traps.h
index 8c194f6af45e..677bfcf4ee5d 100644
--- a/arch/xtensa/include/asm/traps.h
+++ b/arch/xtensa/include/asm/traps.h
@@ -23,25 +23,37 @@ void secondary_trap_init(void);
 
 static inline void spill_registers(void)
 {
-
+#if XCHAL_NUM_AREGS > 16
         __asm__ __volatile__ (
-                "movi   a14, "__stringify((1 << PS_EXCM_BIT) | LOCKLEVEL)"\n\t"
-                "mov    a12, a0\n\t"
-                "rsr    a13, sar\n\t"
-                "xsr    a14, ps\n\t"
-                "movi   a0, _spill_registers\n\t"
-                "rsync\n\t"
-                "callx0 a0\n\t"
-                "mov    a0, a12\n\t"
-                "wsr    a13, sar\n\t"
-                "wsr    a14, ps\n\t"
-                : :
-#if defined(CONFIG_FRAME_POINTER)
-                : "a2", "a3", "a4",       "a11", "a12", "a13", "a14", "a15",
+                "       call12  1f\n"
+                "       _j      2f\n"
+                "       retw\n"
+                "       .align  4\n"
+                "1:\n"
+                "       _entry  a1, 48\n"
+                "       addi    a12, a0, 3\n"
+#if XCHAL_NUM_AREGS > 32
+                "       .rept   (" __stringify(XCHAL_NUM_AREGS) " - 32) / 12\n"
+                "       _entry  a1, 48\n"
+                "       mov     a12, a0\n"
+                "       .endr\n"
+#endif
+                "       _entry  a1, 48\n"
+#if XCHAL_NUM_AREGS % 12 == 0
+                "       mov     a8, a8\n"
+#elif XCHAL_NUM_AREGS % 12 == 4
+                "       mov     a12, a12\n"
+#elif XCHAL_NUM_AREGS % 12 == 8
+                "       mov     a4, a4\n"
+#endif
+                "       retw\n"
+                "2:\n"
+                : : : "a12", "a13", "memory");
 #else
-                : "a2", "a3", "a4", "a7", "a11", "a12", "a13", "a14", "a15",
+        __asm__ __volatile__ (
+                "       mov     a12, a12\n"
+                : : : "memory");
 #endif
-                  "memory");
 }
 
 #endif /* _XTENSA_TRAPS_H */
diff --git a/arch/xtensa/include/asm/vectors.h b/arch/xtensa/include/asm/vectors.h
index 5791b45d5a5d..f74ddfbb92ef 100644
--- a/arch/xtensa/include/asm/vectors.h
+++ b/arch/xtensa/include/asm/vectors.h
@@ -25,7 +25,7 @@
 #define XCHAL_KIO_DEFAULT_PADDR         0xf0000000
 #define XCHAL_KIO_SIZE                  0x10000000
 
-#if XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY && CONFIG_OF
+#if XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY && defined(CONFIG_OF)
 #define XCHAL_KIO_PADDR                 xtensa_get_kio_paddr()
 #else
 #define XCHAL_KIO_PADDR                 XCHAL_KIO_DEFAULT_PADDR