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-rw-r--r--arch/arm/kernel/setup.c75
1 files changed, 52 insertions, 23 deletions
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 987a7f5..50e198c 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -100,6 +100,9 @@ EXPORT_SYMBOL(system_serial_high);
unsigned int elf_hwcap __read_mostly;
EXPORT_SYMBOL(elf_hwcap);
+unsigned int elf_hwcap2 __read_mostly;
+EXPORT_SYMBOL(elf_hwcap2);
+
#ifdef MULTI_CPU
struct processor processor __read_mostly;
@@ -334,7 +337,7 @@ static void __init cacheid_init(void)
cacheid = CACHEID_VIVT;
}
- printk("CPU: %s data cache, %s instruction cache\n",
+ pr_info("CPU: %s data cache, %s instruction cache\n",
cache_is_vivt() ? "VIVT" :
cache_is_vipt_aliasing() ? "VIPT aliasing" :
cache_is_vipt_nonaliasing() ? "PIPT / VIPT nonaliasing" : "unknown",
@@ -416,7 +419,7 @@ void notrace cpu_init(void)
struct stack *stk = &stacks[cpu];
if (cpu >= NR_CPUS) {
- printk(KERN_CRIT "CPU%u: bad primary CPU number\n", cpu);
+ pr_crit("CPU%u: bad primary CPU number\n", cpu);
BUG();
}
@@ -484,7 +487,7 @@ void __init smp_setup_processor_id(void)
*/
set_my_cpu_offset(0);
- printk(KERN_INFO "Booting Linux on physical CPU 0x%x\n", mpidr);
+ pr_info("Booting Linux on physical CPU 0x%x\n", mpidr);
}
struct mpidr_hash mpidr_hash;
@@ -564,8 +567,8 @@ static void __init setup_processor(void)
*/
list = lookup_processor_type(read_cpuid_id());
if (!list) {
- printk("CPU configuration botched (ID %08x), unable "
- "to continue.\n", read_cpuid_id());
+ pr_err("CPU configuration botched (ID %08x), unable to continue.\n",
+ read_cpuid_id());
while (1);
}
@@ -585,9 +588,9 @@ static void __init setup_processor(void)
cpu_cache = *list->cache;
#endif
- printk("CPU: %s [%08x] revision %d (ARMv%s), cr=%08lx\n",
- cpu_name, read_cpuid_id(), read_cpuid_id() & 15,
- proc_arch[cpu_architecture()], cr_alignment);
+ pr_info("CPU: %s [%08x] revision %d (ARMv%s), cr=%08lx\n",
+ cpu_name, read_cpuid_id(), read_cpuid_id() & 15,
+ proc_arch[cpu_architecture()], cr_alignment);
snprintf(init_utsname()->machine, __NEW_UTS_LEN + 1, "%s%c",
list->arch_name, ENDIANNESS);
@@ -629,8 +632,8 @@ int __init arm_add_memory(u64 start, u64 size)
u64 aligned_start;
if (meminfo.nr_banks >= NR_BANKS) {
- printk(KERN_CRIT "NR_BANKS too low, "
- "ignoring memory at 0x%08llx\n", (long long)start);
+ pr_crit("NR_BANKS too low, ignoring memory at 0x%08llx\n",
+ (long long)start);
return -EINVAL;
}
@@ -643,14 +646,14 @@ int __init arm_add_memory(u64 start, u64 size)
#ifndef CONFIG_ARCH_PHYS_ADDR_T_64BIT
if (aligned_start > ULONG_MAX) {
- printk(KERN_CRIT "Ignoring memory at 0x%08llx outside "
- "32-bit physical address space\n", (long long)start);
+ pr_crit("Ignoring memory at 0x%08llx outside 32-bit physical address space\n",
+ (long long)start);
return -EINVAL;
}
if (aligned_start + size > ULONG_MAX) {
- printk(KERN_CRIT "Truncating memory at 0x%08llx to fit in "
- "32-bit physical address space\n", (long long)start);
+ pr_crit("Truncating memory at 0x%08llx to fit in 32-bit physical address space\n",
+ (long long)start);
/*
* To ensure bank->start + bank->size is representable in
* 32 bits, we use ULONG_MAX as the upper limit rather than 4GB.
@@ -660,6 +663,20 @@ int __init arm_add_memory(u64 start, u64 size)
}
#endif
+ if (aligned_start < PHYS_OFFSET) {
+ if (aligned_start + size <= PHYS_OFFSET) {
+ pr_info("Ignoring memory below PHYS_OFFSET: 0x%08llx-0x%08llx\n",
+ aligned_start, aligned_start + size);
+ return -EINVAL;
+ }
+
+ pr_info("Ignoring memory below PHYS_OFFSET: 0x%08llx-0x%08llx\n",
+ aligned_start, (u64)PHYS_OFFSET);
+
+ size -= PHYS_OFFSET - aligned_start;
+ aligned_start = PHYS_OFFSET;
+ }
+
bank->start = aligned_start;
bank->size = size & ~(phys_addr_t)(PAGE_SIZE - 1);
@@ -717,7 +734,7 @@ static void __init request_standard_resources(const struct machine_desc *mdesc)
kernel_data.end = virt_to_phys(_end - 1);
for_each_memblock(memory, region) {
- res = alloc_bootmem_low(sizeof(*res));
+ res = memblock_virt_alloc(sizeof(*res), 0);
res->name = "System RAM";
res->start = __pfn_to_phys(memblock_region_memory_base_pfn(region));
res->end = __pfn_to_phys(memblock_region_memory_end_pfn(region)) - 1;
@@ -817,18 +834,17 @@ static void __init reserve_crashkernel(void)
if (ret)
return;
- ret = reserve_bootmem(crash_base, crash_size, BOOTMEM_EXCLUSIVE);
+ ret = memblock_reserve(crash_base, crash_size);
if (ret < 0) {
- printk(KERN_WARNING "crashkernel reservation failed - "
- "memory is in use (0x%lx)\n", (unsigned long)crash_base);
+ pr_warn("crashkernel reservation failed - memory is in use (0x%lx)\n",
+ (unsigned long)crash_base);
return;
}
- printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
- "for crashkernel (System RAM: %ldMB)\n",
- (unsigned long)(crash_size >> 20),
- (unsigned long)(crash_base >> 20),
- (unsigned long)(total_mem >> 20));
+ pr_info("Reserving %ldMB of memory at %ldMB for crashkernel (System RAM: %ldMB)\n",
+ (unsigned long)(crash_size >> 20),
+ (unsigned long)(crash_base >> 20),
+ (unsigned long)(total_mem >> 20));
crashk_res.start = crash_base;
crashk_res.end = crash_base + crash_size - 1;
@@ -992,6 +1008,15 @@ static const char *hwcap_str[] = {
NULL
};
+static const char *hwcap2_str[] = {
+ "aes",
+ "pmull",
+ "sha1",
+ "sha2",
+ "crc32",
+ NULL
+};
+
static int c_show(struct seq_file *m, void *v)
{
int i, j;
@@ -1015,6 +1040,10 @@ static int c_show(struct seq_file *m, void *v)
if (elf_hwcap & (1 << j))
seq_printf(m, "%s ", hwcap_str[j]);
+ for (j = 0; hwcap2_str[j]; j++)
+ if (elf_hwcap2 & (1 << j))
+ seq_printf(m, "%s ", hwcap2_str[j]);
+
seq_printf(m, "\nCPU implementer\t: 0x%02x\n", cpuid >> 24);
seq_printf(m, "CPU architecture: %s\n",
proc_arch[cpu_architecture()]);
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