ARM: 8646/1: mmu: decouple VECTORS_BASE from Kconfig

For MMU configurations, VECTORS_BASE is always 0xffff0000, a macro
definition will suffice.

For no-MMU, exception base address is dynamically determined in
subsequent patches. To preserve bisectability, now make the
macro applicable for no-MMU scenario too.

Thanks to 0-DAY kernel test infrastructure that found the
bisectability issue. This macro will be restricted to MMU case upon
dynamically determining exception base address for no-MMU.

Once exception address is handled dynamically for no-MMU,
VECTORS_BASE can be removed from Kconfig.

Signed-off-by: afzal mohammed <[e-mail]>
Tested-by: Vladimir Murzin <[e-mail]>
Signed-off-by: Russell King <[e-mail]>

arch/arm/include/asm/memory.h

···
 
 #endif /* !CONFIG_MMU */
 
+#define VECTORS_BASE		UL(0xffff0000)
+
 #ifdef CONFIG_XIP_KERNEL
 #define KERNEL_START		_sdata
 #else

arch/arm/mach-berlin/platsmp.c

···
 
 #include <asm/cacheflush.h>
 #include <asm/cp15.h>
+#include <asm/memory.h>
 #include <asm/smp_plat.h>
 #include <asm/smp_scu.h>
 
···
 	if (!cpu_ctrl)
 		goto unmap_scu;
 
-	vectors_base = ioremap(CONFIG_VECTORS_BASE, SZ_32K);
+	vectors_base = ioremap(VECTORS_BASE, SZ_32K);
 	if (!vectors_base)
 		goto unmap_scu;
 

arch/arm/mm/dump.c

···
 #include <linux/seq_file.h>
 
 #include <asm/fixmap.h>
+#include <asm/memory.h>
 #include <asm/pgtable.h>
 
 struct addr_marker {
···
 	{ 0,			"vmalloc() Area" },
 	{ VMALLOC_END,		"vmalloc() End" },
 	{ FIXADDR_START,	"Fixmap Area" },
-	{ CONFIG_VECTORS_BASE,	"Vectors" },
-	{ CONFIG_VECTORS_BASE + PAGE_SIZE * 2, "Vectors End" },
+	{ VECTORS_BASE,	"Vectors" },
+	{ VECTORS_BASE + PAGE_SIZE * 2, "Vectors End" },
 	{ -1,			NULL },
 };
 

arch/arm/mm/init.c

···
 #include <asm/cp15.h>
 #include <asm/mach-types.h>
 #include <asm/memblock.h>
+#include <asm/memory.h>
 #include <asm/prom.h>
 #include <asm/sections.h>
 #include <asm/setup.h>
···
 			"      .data : 0x%p" " - 0x%p" "   (%4td kB)\n"
 			"       .bss : 0x%p" " - 0x%p" "   (%4td kB)\n",
 
-			MLK(UL(CONFIG_VECTORS_BASE), UL(CONFIG_VECTORS_BASE) +
-				(PAGE_SIZE)),
+			MLK(VECTORS_BASE, VECTORS_BASE + PAGE_SIZE),
 #ifdef CONFIG_HAVE_TCM
 			MLK(DTCM_OFFSET, (unsigned long) dtcm_end),
 			MLK(ITCM_OFFSET, (unsigned long) itcm_end),