6 files changed, 51 insertions, 20 deletions
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 06e6161797fa..133385d13c02 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -572,15 +572,41 @@ config KERNEL_LOAD_ADDRESS
 
 	  If unsure, leave the default value here.
 
-config VECTORS_OFFSET
-	hex "Kernel vectors offset"
-	default 0x00003000
-	depends on !XIP_KERNEL
+choice
+	prompt "Relocatable vectors location"
+	default XTENSA_VECTORS_IN_TEXT
 	help
-	  This is the offset of the kernel image from the relocatable vectors
-	  base.
+	  Choose whether relocatable vectors are merged into the kernel .text
+	  or placed separately at runtime. This option does not affect
+	  configurations without VECBASE register where vectors are always
+	  placed at their hardware-defined locations.
 
-	  If unsure, leave the default value here.
+config XTENSA_VECTORS_IN_TEXT
+	bool "Merge relocatable vectors into kernel text"
+	depends on !MTD_XIP
+	help
+	  This option puts relocatable vectors into the kernel .text section
+	  with proper alignment.
+	  This is a safe choice for most configurations.
+
+config XTENSA_VECTORS_SEPARATE
+	bool "Put relocatable vectors at fixed address"
+	help
+	  This option puts relocatable vectors at specific virtual address.
+	  Vectors are merged with the .init data in the kernel image and
+	  are copied into their designated location during kernel startup.
+	  Use it to put vectors into IRAM or out of FLASH on kernels with
+	  XIP-aware MTD support.
+
+endchoice
+
+config VECTORS_ADDR
+	hex "Kernel vectors virtual address"
+	default 0x00000000
+	depends on XTENSA_VECTORS_SEPARATE
+	help
+	  This is the virtual address of the (relocatable) vectors base.
+	  It must be within KSEG if MMU is used.
 
 config XIP_DATA_ADDR
 	hex "XIP kernel data virtual address"
diff --git a/arch/xtensa/configs/smp_lx200_defconfig b/arch/xtensa/configs/smp_lx200_defconfig
index 8b3bc92a079c..4f1c7998b030 100644
--- a/arch/xtensa/configs/smp_lx200_defconfig
+++ b/arch/xtensa/configs/smp_lx200_defconfig
@@ -30,7 +30,6 @@ CONFIG_SMP=y
 CONFIG_HOTPLUG_CPU=y
 # CONFIG_INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX is not set
 # CONFIG_PCI is not set
-CONFIG_VECTORS_OFFSET=0x00002000
 CONFIG_XTENSA_PLATFORM_XTFPGA=y
 CONFIG_CMDLINE_BOOL=y
 CONFIG_CMDLINE="earlycon=uart8250,mmio32native,0xfd050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug memmap=96M@0"
diff --git a/arch/xtensa/configs/virt_defconfig b/arch/xtensa/configs/virt_defconfig
index 4fddd8512350..6d1387dfa96f 100644
--- a/arch/xtensa/configs/virt_defconfig
+++ b/arch/xtensa/configs/virt_defconfig
@@ -19,7 +19,6 @@ CONFIG_KALLSYMS_ALL=y
 CONFIG_PERF_EVENTS=y
 CONFIG_XTENSA_VARIANT_DC233C=y
 CONFIG_XTENSA_UNALIGNED_USER=y
-CONFIG_VECTORS_OFFSET=0x00002000
 CONFIG_XTENSA_KSEG_512M=y
 CONFIG_HIGHMEM=y
 CONFIG_CMDLINE_BOOL=y
diff --git a/arch/xtensa/include/asm/vectors.h b/arch/xtensa/include/asm/vectors.h
index 140f30762cf9..704286c35640 100644
--- a/arch/xtensa/include/asm/vectors.h
+++ b/arch/xtensa/include/asm/vectors.h
@@ -34,8 +34,8 @@
 #endif
 
 #define RESET_VECTOR1_VADDR		(XCHAL_RESET_VECTOR1_VADDR)
-#ifdef CONFIG_VECTORS_OFFSET
-#define VECBASE_VADDR			(KERNELOFFSET - CONFIG_VECTORS_OFFSET)
+#ifdef CONFIG_VECTORS_ADDR
+#define VECBASE_VADDR			(CONFIG_VECTORS_ADDR)
 #else
 #define VECBASE_VADDR			_vecbase
 #endif
diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index fefbdce1db99..1e9b9e7d9583 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -349,7 +349,7 @@ void __init setup_arch(char **cmdline_p)
 	mem_reserve(__pa(_xip_start), __pa(_xip_end));
 #endif
 
-#ifdef CONFIG_VECTORS_OFFSET
+#ifdef CONFIG_VECTORS_ADDR
 	mem_reserve(__pa(&_WindowVectors_text_start),
 		    __pa(&_WindowVectors_text_end));
 
@@ -388,7 +388,7 @@ void __init setup_arch(char **cmdline_p)
 		    __pa(&_Level6InterruptVector_text_end));
 #endif
 
-#endif /* CONFIG_VECTORS_OFFSET */
+#endif /* CONFIG_VECTORS_ADDR */
 
 #ifdef CONFIG_SMP
 	mem_reserve(__pa(&_SecondaryResetVector_text_start),
diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S
index d9e547810b6c..d23a6e38f062 100644
--- a/arch/xtensa/kernel/vmlinux.lds.S
+++ b/arch/xtensa/kernel/vmlinux.lds.S
@@ -47,9 +47,15 @@ jiffies = jiffies_64;
 	LONG(sym ## _end);			\
 	LONG(LOADADDR(section))
 
+#if !defined(CONFIG_VECTORS_ADDR) && XCHAL_HAVE_VECBASE
+#define MERGED_VECTORS 1
+#else
+#define MERGED_VECTORS 0
+#endif
+
 /*
- * Macro to define a section for a vector. When CONFIG_VECTORS_OFFSET is
- * defined code for every vector is located with other init data. At startup
+ * Macro to define a section for a vector. When MERGED_VECTORS is 0
+ * code for every vector is located with other init data. At startup
  * time head.S copies code for every vector to its final position according
  * to description recorded in the corresponding RELOCATE_ENTRY.
  */
@@ -84,7 +90,7 @@ SECTIONS
     /* The HEAD_TEXT section must be the first section! */
     HEAD_TEXT
 
-#ifndef CONFIG_VECTORS_OFFSET
+#if MERGED_VECTORS
     . = ALIGN(PAGE_SIZE);
     _vecbase = .;
 
@@ -159,7 +165,7 @@ SECTIONS
     . = ALIGN(16);
     __boot_reloc_table_start = ABSOLUTE(.);
 
-#ifdef CONFIG_VECTORS_OFFSET
+#if !MERGED_VECTORS
     RELOCATE_ENTRY(_WindowVectors_text,
 		   .WindowVectors.text);
 #if XCHAL_EXCM_LEVEL >= 2
@@ -220,7 +226,7 @@ SECTIONS
 #undef LAST
 #define LAST	.dummy
 
-#ifdef CONFIG_VECTORS_OFFSET
+#if !MERGED_VECTORS
   /* The vectors are relocated to the real position at startup time */
 
   SECTION_VECTOR4 (_WindowVectors_text,
@@ -299,7 +305,7 @@ SECTIONS
 #define LAST .SecondaryResetVector.text
 
 #endif
-#ifdef CONFIG_VECTORS_OFFSET
+#if !MERGED_VECTORS
   SECTION_VECTOR4 (_exception_text,
 		  .exception.text,
 		  ,
@@ -310,6 +316,7 @@ SECTIONS
 #endif
   . = (LOADADDR(LAST) + SIZEOF(LAST) + 3) & ~ 3;
 
+  .dummy1 : AT(ADDR(.dummy1)) { LONG(0) }
   . = ALIGN(PAGE_SIZE);
 
 #ifndef CONFIG_XIP_KERNEL
@@ -327,7 +334,7 @@ SECTIONS
 
 #undef LOAD_OFFSET
 #define LOAD_OFFSET \
-  (CONFIG_XIP_DATA_ADDR - (LOADADDR(.dummy) + SIZEOF(.dummy) + 3) & ~ 3)
+  (CONFIG_XIP_DATA_ADDR - (LOADADDR(.dummy1) + SIZEOF(.dummy1) + 3) & ~ 3)
 
   _xip_data_start = .;
   _sdata = .;