diff options
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm64/include/asm/assembler.h | 2 | ||||
| -rw-r--r-- | arch/arm64/kernel/arm64ksyms.c | 1 | ||||
| -rw-r--r-- | arch/arm64/kernel/debug-monitors.c | 2 | ||||
| -rw-r--r-- | arch/arm64/kernel/early_printk.c | 5 | ||||
| -rw-r--r-- | arch/arm64/kernel/entry.S | 10 | ||||
| -rw-r--r-- | arch/arm64/kernel/perf_event.c | 1 | ||||
| -rw-r--r-- | arch/arm64/kernel/setup.c | 12 | ||||
| -rw-r--r-- | arch/arm64/kernel/traps.c | 17 | ||||
| -rw-r--r-- | arch/arm64/mm/cache.S | 2 | ||||
| -rw-r--r-- | arch/arm64/mm/fault.c | 3 | ||||
| -rw-r--r-- | arch/arm64/mm/proc.S | 3 |
12 files changed, 35 insertions, 25 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 48347dc..56b3f6d 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -122,8 +122,6 @@ endmenu menu "Kernel Features" -source "kernel/time/Kconfig" - config ARM64_64K_PAGES bool "Enable 64KB pages support" help diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h index c8eedc6..5aceb83 100644 --- a/arch/arm64/include/asm/assembler.h +++ b/arch/arm64/include/asm/assembler.h @@ -82,7 +82,7 @@ .macro enable_dbg_if_not_stepping, tmp mrs \tmp, mdscr_el1 - tbnz \tmp, #1, 9990f + tbnz \tmp, #0, 9990f enable_dbg 9990: .endm diff --git a/arch/arm64/kernel/arm64ksyms.c b/arch/arm64/kernel/arm64ksyms.c index 7df1aad..41b4f62 100644 --- a/arch/arm64/kernel/arm64ksyms.c +++ b/arch/arm64/kernel/arm64ksyms.c @@ -34,6 +34,7 @@ EXPORT_SYMBOL(__strnlen_user); EXPORT_SYMBOL(__strncpy_from_user); EXPORT_SYMBOL(copy_page); +EXPORT_SYMBOL(clear_page); EXPORT_SYMBOL(__copy_from_user); EXPORT_SYMBOL(__copy_to_user); diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-monitors.c index 0c3ba9f..f4726dc 100644 --- a/arch/arm64/kernel/debug-monitors.c +++ b/arch/arm64/kernel/debug-monitors.c @@ -136,8 +136,6 @@ void disable_debug_monitors(enum debug_el el) */ static void clear_os_lock(void *unused) { - asm volatile("msr mdscr_el1, %0" : : "r" (0)); - isb(); asm volatile("msr oslar_el1, %0" : : "r" (0)); isb(); } diff --git a/arch/arm64/kernel/early_printk.c b/arch/arm64/kernel/early_printk.c index ac974f4..fbb6e18 100644 --- a/arch/arm64/kernel/early_printk.c +++ b/arch/arm64/kernel/early_printk.c @@ -95,7 +95,7 @@ static void early_write(struct console *con, const char *s, unsigned n) } } -static struct console early_console = { +static struct console early_console_dev = { .name = "earlycon", .write = early_write, .flags = CON_PRINTBUFFER | CON_BOOT, @@ -145,7 +145,8 @@ static int __init setup_early_printk(char *buf) early_base = early_io_map(paddr, EARLYCON_IOBASE); printch = match->printch; - register_console(&early_console); + early_console = &early_console_dev; + register_console(&early_console_dev); return 0; } diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S index c7e0470..1d13142 100644 --- a/arch/arm64/kernel/entry.S +++ b/arch/arm64/kernel/entry.S @@ -390,6 +390,16 @@ el0_sync_compat: b.eq el0_fpsimd_exc cmp x24, #ESR_EL1_EC_UNKNOWN // unknown exception in EL0 b.eq el0_undef + cmp x24, #ESR_EL1_EC_CP15_32 // CP15 MRC/MCR trap + b.eq el0_undef + cmp x24, #ESR_EL1_EC_CP15_64 // CP15 MRRC/MCRR trap + b.eq el0_undef + cmp x24, #ESR_EL1_EC_CP14_MR // CP14 MRC/MCR trap + b.eq el0_undef + cmp x24, #ESR_EL1_EC_CP14_LS // CP14 LDC/STC trap + b.eq el0_undef + cmp x24, #ESR_EL1_EC_CP14_64 // CP14 MRRC/MCRR trap + b.eq el0_undef cmp x24, #ESR_EL1_EC_BREAKPT_EL0 // debug exception in EL0 b.ge el0_dbg b el0_inv diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c index 1e49e5eb..9ba33c4 100644 --- a/arch/arm64/kernel/perf_event.c +++ b/arch/arm64/kernel/perf_event.c @@ -1336,6 +1336,7 @@ void perf_callchain_user(struct perf_callchain_entry *entry, return; } + perf_callchain_store(entry, regs->pc); tail = (struct frame_tail __user *)regs->regs[29]; while (entry->nr < PERF_MAX_STACK_DEPTH && diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 6a9a532..add6ea6 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -282,12 +282,13 @@ void __init setup_arch(char **cmdline_p) #endif } -static int __init arm64_of_clk_init(void) +static int __init arm64_device_init(void) { of_clk_init(NULL); + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); return 0; } -arch_initcall(arm64_of_clk_init); +arch_initcall(arm64_device_init); static DEFINE_PER_CPU(struct cpu, cpu_data); @@ -305,13 +306,6 @@ static int __init topology_init(void) } subsys_initcall(topology_init); -static int __init arm64_device_probe(void) -{ - of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); - return 0; -} -device_initcall(arm64_device_probe); - static const char *hwcap_str[] = { "fp", "asimd", diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index 61d7dd2..f30852d 100644 --- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -267,7 +267,8 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs) return; #endif - if (show_unhandled_signals) { + if (show_unhandled_signals && unhandled_signal(current, SIGILL) && + printk_ratelimit()) { pr_info("%s[%d]: undefined instruction: pc=%p\n", current->comm, task_pid_nr(current), pc); dump_instr(KERN_INFO, regs); @@ -294,7 +295,7 @@ asmlinkage long do_ni_syscall(struct pt_regs *regs) } #endif - if (show_unhandled_signals) { + if (show_unhandled_signals && printk_ratelimit()) { pr_info("%s[%d]: syscall %d\n", current->comm, task_pid_nr(current), (int)regs->syscallno); dump_instr("", regs); @@ -310,14 +311,20 @@ asmlinkage long do_ni_syscall(struct pt_regs *regs) */ asmlinkage void bad_mode(struct pt_regs *regs, int reason, unsigned int esr) { + siginfo_t info; + void __user *pc = (void __user *)instruction_pointer(regs); console_verbose(); pr_crit("Bad mode in %s handler detected, code 0x%08x\n", handler[reason], esr); + __show_regs(regs); + + info.si_signo = SIGILL; + info.si_errno = 0; + info.si_code = ILL_ILLOPC; + info.si_addr = pc; - die("Oops - bad mode", regs, 0); - local_irq_disable(); - panic("bad mode"); + arm64_notify_die("Oops - bad mode", regs, &info, 0); } void __pte_error(const char *file, int line, unsigned long val) diff --git a/arch/arm64/mm/cache.S b/arch/arm64/mm/cache.S index abe69b8..48a3860 100644 --- a/arch/arm64/mm/cache.S +++ b/arch/arm64/mm/cache.S @@ -52,7 +52,7 @@ loop1: add x2, x2, #4 // add 4 (line length offset) mov x4, #0x3ff and x4, x4, x1, lsr #3 // find maximum number on the way size - clz x5, x4 // find bit position of way size increment + clz w5, w4 // find bit position of way size increment mov x7, #0x7fff and x7, x7, x1, lsr #13 // extract max number of the index size loop2: diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index 98af6e7..1426468 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -113,7 +113,8 @@ static void __do_user_fault(struct task_struct *tsk, unsigned long addr, { struct siginfo si; - if (show_unhandled_signals) { + if (show_unhandled_signals && unhandled_signal(tsk, sig) && + printk_ratelimit()) { pr_info("%s[%d]: unhandled %s (%d) at 0x%08lx, esr 0x%03x\n", tsk->comm, task_pid_nr(tsk), fault_name(esr), sig, addr, esr); diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S index f1d8b9b..a82ae88 100644 --- a/arch/arm64/mm/proc.S +++ b/arch/arm64/mm/proc.S @@ -119,8 +119,7 @@ ENTRY(__cpu_setup) mov x0, #3 << 20 msr cpacr_el1, x0 // Enable FP/ASIMD - mov x0, #1 - msr oslar_el1, x0 // Set the debug OS lock + msr mdscr_el1, xzr // Reset mdscr_el1 tlbi vmalle1is // invalidate I + D TLBs /* * Memory region attributes for LPAE: |
