arm/arm64: support 64-bit MPIDRs

Reported-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>

lib/arm/asm/processor.h

@@ -46,7 +46,7 @@ static inline void local_irq_disable(void)
 }
 
 #define MPIDR __ACCESS_CP15(c0, 0, c0, 5)
-static inline unsigned int get_mpidr(void)
+static inline uint64_t get_mpidr(void)
 {
 	return read_sysreg(MPIDR);
 }

lib/arm/asm/setup.h

@@ -11,7 +11,7 @@
 #include <asm/pgtable-hwdef.h>
 
 #define NR_CPUS			255
-extern u32 cpus[NR_CPUS];	/* per-cpu IDs (MPIDRs) */
+extern u64 cpus[NR_CPUS];	/* per-cpu IDs (MPIDRs) */
 extern int nr_cpus;
 
 #define NR_MEM_REGIONS		8

lib/arm/setup.c

@@ -24,7 +24,7 @@ extern unsigned long stacktop;
 extern void io_init(void);
 extern void setup_args_progname(const char *args);
 
-u32 cpus[NR_CPUS] = { [0 ... NR_CPUS-1] = (~0U) };
+u64 cpus[NR_CPUS] = { [0 ... NR_CPUS-1] = (u64)~0 };
 int nr_cpus;
 
 struct mem_region mem_regions[NR_MEM_REGIONS];

lib/arm64/asm/processor.h

@@ -78,7 +78,7 @@ static inline void local_irq_disable(void)
 	asm volatile("msr daifset, #2" : : : "memory");
 }
 
-static inline unsigned int get_mpidr(void)
+static inline uint64_t get_mpidr(void)
 {
 	return read_sysreg(mpidr_el1);
 }