diff options
Diffstat (limited to 'arch/mips/kernel')
29 files changed, 78 insertions, 90 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index b406d8bfb1..bda7f193ba 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -179,7 +179,6 @@ void __init check_bugs32(void) static inline int cpu_has_confreg(void) { #ifdef CONFIG_CPU_R3000 - extern unsigned long r3k_cache_size(unsigned long); unsigned long size1, size2; unsigned long cfg = read_c0_conf(); @@ -1139,7 +1138,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu) * This processor doesn't have an MMU, so it's not * "real easy" to run Linux on it. It is left purely * for documentation. Commented out because it shares - * it's c0_prid id number with the TX3900. + * its c0_prid id number with the TX3900. */ c->cputype = CPU_R4650; __cpu_name[cpu] = "R4650"; diff --git a/arch/mips/kernel/cpu-r3k-probe.c b/arch/mips/kernel/cpu-r3k-probe.c index be93469c0e..0c826f729f 100644 --- a/arch/mips/kernel/cpu-r3k-probe.c +++ b/arch/mips/kernel/cpu-r3k-probe.c @@ -42,7 +42,6 @@ void __init check_bugs32(void) static inline int cpu_has_confreg(void) { #ifdef CONFIG_CPU_R3000 - extern unsigned long r3k_cache_size(unsigned long); unsigned long size1, size2; unsigned long cfg = read_c0_conf(); diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S index b6de8e88c1..a572ce36a2 100644 --- a/arch/mips/kernel/genex.S +++ b/arch/mips/kernel/genex.S @@ -272,18 +272,17 @@ NESTED(except_vec_vi, 0, sp) .set push .set noreorder PTR_LA v1, except_vec_vi_handler -FEXPORT(except_vec_vi_lui) - lui v0, 0 /* Patched */ jr v1 FEXPORT(except_vec_vi_ori) - ori v0, 0 /* Patched */ + ori v0, zero, 0 /* Offset in vi_handlers[] */ .set pop END(except_vec_vi) EXPORT(except_vec_vi_end) /* * Common Vectored Interrupt code - * Complete the register saves and invoke the handler which is passed in $v0 + * Complete the register saves and invoke the handler, $v0 holds + * offset into vi_handlers[] */ NESTED(except_vec_vi_handler, 0, sp) SAVE_TEMP @@ -331,6 +330,7 @@ NESTED(except_vec_vi_handler, 0, sp) /* Save task's sp on IRQ stack so that unwinding can follow it */ LONG_S s1, 0(sp) 2: + PTR_L v0, vi_handlers(v0) jalr v0 /* Restore sp */ diff --git a/arch/mips/kernel/kprobes.c b/arch/mips/kernel/kprobes.c index 316b27d0d2..dc39f5b3fb 100644 --- a/arch/mips/kernel/kprobes.c +++ b/arch/mips/kernel/kprobes.c @@ -55,7 +55,7 @@ NOKPROBE_SYMBOL(insn_has_delayslot); * one; putting breakpoint on top of atomic ll/sc pair is bad idea; * so we need to prevent it and refuse kprobes insertion for such * instructions; cannot do much about breakpoint in the middle of - * ll/sc pair; it is upto user to avoid those places + * ll/sc pair; it is up to user to avoid those places */ static int insn_has_ll_or_sc(union mips_instruction insn) { diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c index 6b61be4863..a0c0a7a654 100644 --- a/arch/mips/kernel/linux32.c +++ b/arch/mips/kernel/linux32.c @@ -42,6 +42,7 @@ #include <linux/uaccess.h> #include <asm/mmu_context.h> #include <asm/mman.h> +#include <asm/syscalls.h> #ifdef __MIPSEB__ #define merge_64(r1, r2) ((((r1) & 0xffffffffUL) << 32) + ((r2) & 0xffffffffUL)) diff --git a/arch/mips/kernel/machine_kexec.c b/arch/mips/kernel/machine_kexec.c index 432bfd3e7f..4e3579bbd6 100644 --- a/arch/mips/kernel/machine_kexec.c +++ b/arch/mips/kernel/machine_kexec.c @@ -8,6 +8,7 @@ #include <linux/mm.h> #include <linux/delay.h> #include <linux/libfdt.h> +#include <linux/reboot.h> #include <asm/cacheflush.h> #include <asm/page.h> diff --git a/arch/mips/kernel/mips-cm.c b/arch/mips/kernel/mips-cm.c index 3f00788b08..268ac0b811 100644 --- a/arch/mips/kernel/mips-cm.c +++ b/arch/mips/kernel/mips-cm.c @@ -201,7 +201,7 @@ phys_addr_t __mips_cm_phys_base(void) phys_addr_t mips_cm_phys_base(void) __attribute__((weak, alias("__mips_cm_phys_base"))); -phys_addr_t __mips_cm_l2sync_phys_base(void) +phys_addr_t __weak mips_cm_l2sync_phys_base(void) { u32 base_reg; @@ -217,9 +217,6 @@ phys_addr_t __mips_cm_l2sync_phys_base(void) return mips_cm_phys_base() + MIPS_CM_GCR_SIZE; } -phys_addr_t mips_cm_l2sync_phys_base(void) - __attribute__((weak, alias("__mips_cm_l2sync_phys_base"))); - static void mips_cm_probe_l2sync(void) { unsigned major_rev; diff --git a/arch/mips/kernel/mips-mt-fpaff.c b/arch/mips/kernel/mips-mt-fpaff.c index 67e130d3f0..10172fc4f6 100644 --- a/arch/mips/kernel/mips-mt-fpaff.c +++ b/arch/mips/kernel/mips-mt-fpaff.c @@ -15,6 +15,7 @@ #include <linux/security.h> #include <linux/types.h> #include <linux/uaccess.h> +#include <asm/syscalls.h> /* * CPU mask used to set process affinity for MT VPEs/TCs with FPUs diff --git a/arch/mips/kernel/mips-mt.c b/arch/mips/kernel/mips-mt.c index f88b7919f1..c07d64438b 100644 --- a/arch/mips/kernel/mips-mt.c +++ b/arch/mips/kernel/mips-mt.c @@ -19,6 +19,7 @@ #include <asm/mipsmtregs.h> #include <asm/r4kcache.h> #include <asm/cacheflush.h> +#include <asm/mips_mt.h> int vpelimit; diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c index 0c936cbf20..7b2fbaa9ca 100644 --- a/arch/mips/kernel/module.c +++ b/arch/mips/kernel/module.c @@ -20,8 +20,7 @@ #include <linux/kernel.h> #include <linux/spinlock.h> #include <linux/jump_label.h> - -extern void jump_label_apply_nops(struct module *mod); +#include <asm/jump_label.h> struct mips_hi16 { struct mips_hi16 *next; diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c index f88ce78e13..6062e6fa58 100644 --- a/arch/mips/kernel/prom.c +++ b/arch/mips/kernel/prom.c @@ -28,6 +28,8 @@ __init void mips_set_machine_name(const char *name) strscpy(mips_machine_name, name, sizeof(mips_machine_name)); pr_info("MIPS: machine is %s\n", mips_get_machine_name()); + + dump_stack_set_arch_desc(name); } char *mips_get_machine_name(void) diff --git a/arch/mips/kernel/r4k-bugs64.c b/arch/mips/kernel/r4k-bugs64.c index 6ffefb2c69..1e30033007 100644 --- a/arch/mips/kernel/r4k-bugs64.c +++ b/arch/mips/kernel/r4k-bugs64.c @@ -14,6 +14,7 @@ #include <asm/fpu.h> #include <asm/mipsregs.h> #include <asm/setup.h> +#include <asm/traps.h> static char bug64hit[] __initdata = "reliable operation impossible!\n%s"; diff --git a/arch/mips/kernel/relocate.c b/arch/mips/kernel/relocate.c index 58fc8d0894..7eeeaf1ff9 100644 --- a/arch/mips/kernel/relocate.c +++ b/arch/mips/kernel/relocate.c @@ -380,7 +380,7 @@ void *__init relocate_kernel(void) } #endif /* CONFIG_USE_OF */ - /* Copy the kernel to it's new location */ + /* Copy the kernel to its new location */ memcpy(loc_new, &_text, kernel_length); /* Perform relocations on the new kernel */ diff --git a/arch/mips/kernel/relocate_kernel.S b/arch/mips/kernel/relocate_kernel.S index 8f0a7263a9..de894a0211 100644 --- a/arch/mips/kernel/relocate_kernel.S +++ b/arch/mips/kernel/relocate_kernel.S @@ -70,7 +70,7 @@ copy_word: done: #ifdef CONFIG_SMP /* kexec_flag reset is signal to other CPUs what kernel - was moved to it's location. Note - we need relocated address + was moved to its location. Note - we need relocated address of kexec_flag. */ bal 1f diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index 0461ab49e8..9c30de1515 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -42,6 +42,7 @@ #include <asm/sections.h> #include <asm/setup.h> #include <asm/smp-ops.h> +#include <asm/mips-cps.h> #include <asm/prom.h> #include <asm/fw/fw.h> @@ -146,7 +147,7 @@ static unsigned long __init init_initrd(void) /* * Board specific code or command line parser should have * already set up initrd_start and initrd_end. In these cases - * perfom sanity checks and use them if all looks good. + * perform sanity checks and use them if all looks good. */ if (!initrd_start || initrd_end <= initrd_start) goto disable; diff --git a/arch/mips/kernel/signal-common.h b/arch/mips/kernel/signal-common.h index f50d48435c..136eb20ac0 100644 --- a/arch/mips/kernel/signal-common.h +++ b/arch/mips/kernel/signal-common.h @@ -40,4 +40,7 @@ _restore_fp_context(void __user *fpregs, void __user *csr); extern asmlinkage int _save_msa_all_upper(void __user *buf); extern asmlinkage int _restore_msa_all_upper(void __user *buf); +extern int setup_sigcontext(struct pt_regs *, struct sigcontext __user *); +extern int restore_sigcontext(struct pt_regs *, struct sigcontext __user *); + #endif /* __SIGNAL_COMMON_H */ diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c index 479999b7f2..4a10f18a88 100644 --- a/arch/mips/kernel/signal.c +++ b/arch/mips/kernel/signal.c @@ -38,6 +38,7 @@ #include <asm/dsp.h> #include <asm/inst.h> #include <asm/msa.h> +#include <asm/syscalls.h> #include "signal-common.h" @@ -569,7 +570,7 @@ void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs, return (void __user __force *)(-1UL); /* - * FPU emulator may have it's own trampoline active just + * FPU emulator may have its own trampoline active just * above the user stack, 16-bytes before the next lowest * 16 byte boundary. Try to avoid trashing it. */ diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c index 59b8965433..73081d4ee8 100644 --- a/arch/mips/kernel/signal32.c +++ b/arch/mips/kernel/signal32.c @@ -18,6 +18,7 @@ #include <asm/compat-signal.h> #include <linux/uaccess.h> #include <asm/unistd.h> +#include <asm/syscalls.h> #include "signal-common.h" diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c index cfc77b6942..139d2596b0 100644 --- a/arch/mips/kernel/signal_n32.c +++ b/arch/mips/kernel/signal_n32.c @@ -24,6 +24,7 @@ #include <asm/ucontext.h> #include <asm/fpu.h> #include <asm/cpu-features.h> +#include <asm/syscalls.h> #include "signal-common.h" @@ -32,9 +33,6 @@ */ #define __NR_N32_restart_syscall 6214 -extern int setup_sigcontext(struct pt_regs *, struct sigcontext __user *); -extern int restore_sigcontext(struct pt_regs *, struct sigcontext __user *); - struct ucontextn32 { u32 uc_flags; s32 uc_link; diff --git a/arch/mips/kernel/signal_o32.c b/arch/mips/kernel/signal_o32.c index 299a7a28ca..4f04584596 100644 --- a/arch/mips/kernel/signal_o32.c +++ b/arch/mips/kernel/signal_o32.c @@ -19,6 +19,7 @@ #include <asm/dsp.h> #include <asm/sim.h> #include <asm/unistd.h> +#include <asm/syscalls.h> #include "signal-common.h" diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c index 82e2e051b4..0b53d35a11 100644 --- a/arch/mips/kernel/smp.c +++ b/arch/mips/kernel/smp.c @@ -10,6 +10,7 @@ #include <linux/delay.h> #include <linux/init.h> #include <linux/interrupt.h> +#include <linux/profile.h> #include <linux/smp.h> #include <linux/spinlock.h> #include <linux/threads.h> @@ -468,11 +469,13 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle) return 0; } +#ifdef CONFIG_PROFILING /* Not really SMP stuff ... */ int setup_profiling_timer(unsigned int multiplier) { return 0; } +#endif static void flush_tlb_all_ipi(void *info) { diff --git a/arch/mips/kernel/spram.c b/arch/mips/kernel/spram.c index d5d96214cc..71c7e5e275 100644 --- a/arch/mips/kernel/spram.c +++ b/arch/mips/kernel/spram.c @@ -12,6 +12,7 @@ #include <asm/mipsregs.h> #include <asm/r4kcache.h> #include <asm/hazards.h> +#include <asm/spram.h> /* * These definitions are correct for the 24K/34K/74K SPRAM sample diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c index ae93a607dd..1bfc34a2e5 100644 --- a/arch/mips/kernel/syscall.c +++ b/arch/mips/kernel/syscall.c @@ -39,6 +39,7 @@ #include <asm/shmparam.h> #include <asm/sync.h> #include <asm/sysmips.h> +#include <asm/syscalls.h> #include <asm/switch_to.h> /* diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl index a842b41c8e..83cfc9eb6b 100644 --- a/arch/mips/kernel/syscalls/syscall_n32.tbl +++ b/arch/mips/kernel/syscalls/syscall_n32.tbl @@ -395,3 +395,8 @@ 454 n32 futex_wake sys_futex_wake 455 n32 futex_wait sys_futex_wait 456 n32 futex_requeue sys_futex_requeue +457 n32 statmount sys_statmount +458 n32 listmount sys_listmount +459 n32 lsm_get_self_attr sys_lsm_get_self_attr +460 n32 lsm_set_self_attr sys_lsm_set_self_attr +461 n32 lsm_list_modules sys_lsm_list_modules diff --git a/arch/mips/kernel/syscalls/syscall_n64.tbl b/arch/mips/kernel/syscalls/syscall_n64.tbl index 116ff501bf..532b855df5 100644 --- a/arch/mips/kernel/syscalls/syscall_n64.tbl +++ b/arch/mips/kernel/syscalls/syscall_n64.tbl @@ -371,3 +371,8 @@ 454 n64 futex_wake sys_futex_wake 455 n64 futex_wait sys_futex_wait 456 n64 futex_requeue sys_futex_requeue +457 n64 statmount sys_statmount +458 n64 listmount sys_listmount +459 n64 lsm_get_self_attr sys_lsm_get_self_attr +460 n64 lsm_set_self_attr sys_lsm_set_self_attr +461 n64 lsm_list_modules sys_lsm_list_modules diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl index 525cc54bc6..f45c9530ea 100644 --- a/arch/mips/kernel/syscalls/syscall_o32.tbl +++ b/arch/mips/kernel/syscalls/syscall_o32.tbl @@ -444,3 +444,8 @@ 454 o32 futex_wake sys_futex_wake 455 o32 futex_wait sys_futex_wait 456 o32 futex_requeue sys_futex_requeue +457 o32 statmount sys_statmount +458 o32 listmount sys_listmount +459 o32 lsm_get_self_attr sys_lsm_get_self_attr +460 o32 lsm_set_self_attr sys_lsm_set_self_attr +461 o32 lsm_list_modules sys_lsm_list_modules diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 5b778995d4..a1c1cb5de9 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -2061,110 +2061,71 @@ static void do_default_vi(void) panic("Caught unexpected vectored interrupt."); } -static void *set_vi_srs_handler(int n, vi_handler_t addr, int srs) +void *set_vi_handler(int n, vi_handler_t addr) { + extern const u8 except_vec_vi[]; + extern const u8 except_vec_vi_ori[], except_vec_vi_end[]; + extern const u8 rollback_except_vec_vi[]; unsigned long handler; unsigned long old_handler = vi_handlers[n]; int srssets = current_cpu_data.srsets; u16 *h; unsigned char *b; + const u8 *vec_start; + int ori_offset; + int handler_len; BUG_ON(!cpu_has_veic && !cpu_has_vint); if (addr == NULL) { handler = (unsigned long) do_default_vi; - srs = 0; } else handler = (unsigned long) addr; vi_handlers[n] = handler; b = (unsigned char *)(ebase + 0x200 + n*VECTORSPACING); - if (srs >= srssets) - panic("Shadow register set %d not supported", srs); - if (cpu_has_veic) { if (board_bind_eic_interrupt) - board_bind_eic_interrupt(n, srs); + board_bind_eic_interrupt(n, 0); } else if (cpu_has_vint) { /* SRSMap is only defined if shadow sets are implemented */ if (srssets > 1) - change_c0_srsmap(0xf << n*4, srs << n*4); + change_c0_srsmap(0xf << n*4, 0 << n*4); } - if (srs == 0) { - /* - * If no shadow set is selected then use the default handler - * that does normal register saving and standard interrupt exit - */ - extern const u8 except_vec_vi[], except_vec_vi_lui[]; - extern const u8 except_vec_vi_ori[], except_vec_vi_end[]; - extern const u8 rollback_except_vec_vi[]; - const u8 *vec_start = using_rollback_handler() ? - rollback_except_vec_vi : except_vec_vi; + vec_start = using_rollback_handler() ? rollback_except_vec_vi : + except_vec_vi; #if defined(CONFIG_CPU_MICROMIPS) || defined(CONFIG_CPU_BIG_ENDIAN) - const int lui_offset = except_vec_vi_lui - vec_start + 2; - const int ori_offset = except_vec_vi_ori - vec_start + 2; + ori_offset = except_vec_vi_ori - vec_start + 2; #else - const int lui_offset = except_vec_vi_lui - vec_start; - const int ori_offset = except_vec_vi_ori - vec_start; + ori_offset = except_vec_vi_ori - vec_start; #endif - const int handler_len = except_vec_vi_end - vec_start; - - if (handler_len > VECTORSPACING) { - /* - * Sigh... panicing won't help as the console - * is probably not configured :( - */ - panic("VECTORSPACING too small"); - } + handler_len = except_vec_vi_end - vec_start; - set_handler(((unsigned long)b - ebase), vec_start, -#ifdef CONFIG_CPU_MICROMIPS - (handler_len - 1)); -#else - handler_len); -#endif - h = (u16 *)(b + lui_offset); - *h = (handler >> 16) & 0xffff; - h = (u16 *)(b + ori_offset); - *h = (handler & 0xffff); - local_flush_icache_range((unsigned long)b, - (unsigned long)(b+handler_len)); - } - else { + if (handler_len > VECTORSPACING) { /* - * In other cases jump directly to the interrupt handler. It - * is the handler's responsibility to save registers if required - * (eg hi/lo) and return from the exception using "eret". + * Sigh... panicing won't help as the console + * is probably not configured :( */ - u32 insn; + panic("VECTORSPACING too small"); + } - h = (u16 *)b; - /* j handler */ + set_handler(((unsigned long)b - ebase), vec_start, #ifdef CONFIG_CPU_MICROMIPS - insn = 0xd4000000 | (((u32)handler & 0x07ffffff) >> 1); + (handler_len - 1)); #else - insn = 0x08000000 | (((u32)handler & 0x0fffffff) >> 2); + handler_len); #endif - h[0] = (insn >> 16) & 0xffff; - h[1] = insn & 0xffff; - h[2] = 0; - h[3] = 0; - local_flush_icache_range((unsigned long)b, - (unsigned long)(b+8)); - } + /* insert offset into vi_handlers[] */ + h = (u16 *)(b + ori_offset); + *h = n * sizeof(handler); + local_flush_icache_range((unsigned long)b, + (unsigned long)(b+handler_len)); return (void *)old_handler; } -void *set_vi_handler(int n, vi_handler_t addr) -{ - return set_vi_srs_handler(n, addr, 0); -} - -extern void tlb_init(void); - /* * Timer interrupt */ @@ -2424,7 +2385,7 @@ void __init trap_init(void) set_except_vector(i, handle_reserved); /* - * Copy the EJTAG debug exception vector handler code to it's final + * Copy the EJTAG debug exception vector handler code to its final * destination. */ if (cpu_has_ejtag && board_ejtag_handler_setup) diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c index f4cf94e92e..db652c99b7 100644 --- a/arch/mips/kernel/unaligned.c +++ b/arch/mips/kernel/unaligned.c @@ -91,6 +91,7 @@ #include <asm/inst.h> #include <asm/unaligned-emul.h> #include <asm/mmu_context.h> +#include <asm/traps.h> #include <linux/uaccess.h> #include "access-helper.h" diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index e9a0cfd02a..737d0d4fdc 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -6,9 +6,9 @@ * Copyright (C) 2004, 2005 MIPS Technologies, Inc. All rights reserved. * Copyright (C) 2013 Imagination Technologies Ltd. * - * VPE spport module for loading a MIPS SP program into VPE1. The SP + * VPE support module for loading a MIPS SP program into VPE1. The SP * environment is rather simple since there are no TLBs. It needs - * to be relocatable (or partiall linked). Initialize your stack in + * to be relocatable (or partially linked). Initialize your stack in * the startup-code. The loader looks for the symbol __start and sets * up the execution to resume from there. To load and run, simply do * a cat SP 'binary' to the /dev/vpe1 device. |