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-rw-r--r--arch/mips/kernel/cmpxchg.c3
-rw-r--r--arch/mips/kernel/cpu-probe.c55
-rw-r--r--arch/mips/kernel/ftrace.c6
-rw-r--r--arch/mips/kernel/irq.c4
-rw-r--r--arch/mips/kernel/kgdb.c4
-rw-r--r--arch/mips/kernel/mips-cm.c6
-rw-r--r--arch/mips/kernel/mips-r2-to-r6-emul.c21
-rw-r--r--arch/mips/kernel/process.c7
-rw-r--r--arch/mips/kernel/segment.c15
-rw-r--r--arch/mips/kernel/setup.c10
-rw-r--r--arch/mips/kernel/smp.c69
-rw-r--r--arch/mips/kernel/spinlock_test.c21
-rw-r--r--arch/mips/kernel/syscalls/syscall_n32.tbl77
-rw-r--r--arch/mips/kernel/syscalls/syscall_n64.tbl7
-rw-r--r--arch/mips/kernel/syscalls/syscall_o32.tbl85
-rw-r--r--arch/mips/kernel/traps.c6
-rw-r--r--arch/mips/kernel/unaligned.c17
17 files changed, 261 insertions, 152 deletions
diff --git a/arch/mips/kernel/cmpxchg.c b/arch/mips/kernel/cmpxchg.c
index 0b9535bc2c53..6b2a4a902a98 100644
--- a/arch/mips/kernel/cmpxchg.c
+++ b/arch/mips/kernel/cmpxchg.c
@@ -54,10 +54,9 @@ unsigned long __xchg_small(volatile void *ptr, unsigned long val, unsigned int s
unsigned long __cmpxchg_small(volatile void *ptr, unsigned long old,
unsigned long new, unsigned int size)
{
- u32 mask, old32, new32, load32;
+ u32 mask, old32, new32, load32, load;
volatile u32 *ptr32;
unsigned int shift;
- u8 load;
/* Check that ptr is naturally aligned */
WARN_ON((unsigned long)ptr & (size - 1));
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 95b18a194f53..d5e335e6846a 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -872,10 +872,19 @@ static inline unsigned int decode_config4(struct cpuinfo_mips *c)
static inline unsigned int decode_config5(struct cpuinfo_mips *c)
{
- unsigned int config5;
+ unsigned int config5, max_mmid_width;
+ unsigned long asid_mask;
config5 = read_c0_config5();
config5 &= ~(MIPS_CONF5_UFR | MIPS_CONF5_UFE);
+
+ if (cpu_has_mips_r6) {
+ if (!__builtin_constant_p(cpu_has_mmid) || cpu_has_mmid)
+ config5 |= MIPS_CONF5_MI;
+ else
+ config5 &= ~MIPS_CONF5_MI;
+ }
+
write_c0_config5(config5);
if (config5 & MIPS_CONF5_EVA)
@@ -894,6 +903,50 @@ static inline unsigned int decode_config5(struct cpuinfo_mips *c)
if (config5 & MIPS_CONF5_CRCP)
elf_hwcap |= HWCAP_MIPS_CRC32;
+ if (cpu_has_mips_r6) {
+ /* Ensure the write to config5 above takes effect */
+ back_to_back_c0_hazard();
+
+ /* Check whether we successfully enabled MMID support */
+ config5 = read_c0_config5();
+ if (config5 & MIPS_CONF5_MI)
+ c->options |= MIPS_CPU_MMID;
+
+ /*
+ * Warn if we've hardcoded cpu_has_mmid to a value unsuitable
+ * for the CPU we're running on, or if CPUs in an SMP system
+ * have inconsistent MMID support.
+ */
+ WARN_ON(!!cpu_has_mmid != !!(config5 & MIPS_CONF5_MI));
+
+ if (cpu_has_mmid) {
+ write_c0_memorymapid(~0ul);
+ back_to_back_c0_hazard();
+ asid_mask = read_c0_memorymapid();
+
+ /*
+ * We maintain a bitmap to track MMID allocation, and
+ * need a sensible upper bound on the size of that
+ * bitmap. The initial CPU with MMID support (I6500)
+ * supports 16 bit MMIDs, which gives us an 8KiB
+ * bitmap. The architecture recommends that hardware
+ * support 32 bit MMIDs, which would give us a 512MiB
+ * bitmap - that's too big in most cases.
+ *
+ * Cap MMID width at 16 bits for now & we can revisit
+ * this if & when hardware supports anything wider.
+ */
+ max_mmid_width = 16;
+ if (asid_mask > GENMASK(max_mmid_width - 1, 0)) {
+ pr_info("Capping MMID width at %d bits",
+ max_mmid_width);
+ asid_mask = GENMASK(max_mmid_width - 1, 0);
+ }
+
+ set_cpu_asid_mask(c, asid_mask);
+ }
+ }
+
return config5 & MIPS_CONF_M;
}
diff --git a/arch/mips/kernel/ftrace.c b/arch/mips/kernel/ftrace.c
index 2ea0ec95efe9..4b5e1f2bfbce 100644
--- a/arch/mips/kernel/ftrace.c
+++ b/arch/mips/kernel/ftrace.c
@@ -86,7 +86,7 @@ static int ftrace_modify_code(unsigned long ip, unsigned int new_code)
return -EFAULT;
old_fs = get_fs();
- set_fs(get_ds());
+ set_fs(KERNEL_DS);
flush_icache_range(ip, ip + 8);
set_fs(old_fs);
@@ -111,7 +111,7 @@ static int ftrace_modify_code_2(unsigned long ip, unsigned int new_code1,
ip -= 4;
old_fs = get_fs();
- set_fs(get_ds());
+ set_fs(KERNEL_DS);
flush_icache_range(ip, ip + 8);
set_fs(old_fs);
@@ -135,7 +135,7 @@ static int ftrace_modify_code_2r(unsigned long ip, unsigned int new_code1,
return -EFAULT;
old_fs = get_fs();
- set_fs(get_ds());
+ set_fs(KERNEL_DS);
flush_icache_range(ip, ip + 8);
set_fs(old_fs);
diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
index ba150c755fcc..85b6c60f285d 100644
--- a/arch/mips/kernel/irq.c
+++ b/arch/mips/kernel/irq.c
@@ -52,6 +52,7 @@ asmlinkage void spurious_interrupt(void)
void __init init_IRQ(void)
{
int i;
+ unsigned int order = get_order(IRQ_STACK_SIZE);
for (i = 0; i < NR_IRQS; i++)
irq_set_noprobe(i);
@@ -62,8 +63,7 @@ void __init init_IRQ(void)
arch_init_irq();
for_each_possible_cpu(i) {
- int irq_pages = IRQ_STACK_SIZE / PAGE_SIZE;
- void *s = (void *)__get_free_pages(GFP_KERNEL, irq_pages);
+ void *s = (void *)__get_free_pages(GFP_KERNEL, order);
irq_stack[i] = s;
pr_debug("CPU%d IRQ stack at 0x%p - 0x%p\n", i,
diff --git a/arch/mips/kernel/kgdb.c b/arch/mips/kernel/kgdb.c
index 149100e1bc7c..6e574c02e4c3 100644
--- a/arch/mips/kernel/kgdb.c
+++ b/arch/mips/kernel/kgdb.c
@@ -212,7 +212,7 @@ void kgdb_call_nmi_hook(void *ignored)
mm_segment_t old_fs;
old_fs = get_fs();
- set_fs(get_ds());
+ set_fs(KERNEL_DS);
kgdb_nmicallback(raw_smp_processor_id(), NULL);
@@ -318,7 +318,7 @@ static int kgdb_mips_notify(struct notifier_block *self, unsigned long cmd,
/* Kernel mode. Set correct address limit */
old_fs = get_fs();
- set_fs(get_ds());
+ set_fs(KERNEL_DS);
if (atomic_read(&kgdb_active) != -1)
kgdb_nmicallback(smp_processor_id(), regs);
diff --git a/arch/mips/kernel/mips-cm.c b/arch/mips/kernel/mips-cm.c
index 8f5bd04f320a..537e8d091874 100644
--- a/arch/mips/kernel/mips-cm.c
+++ b/arch/mips/kernel/mips-cm.c
@@ -382,8 +382,8 @@ void mips_cm_error_report(void)
sc_bit ? "True" : "False",
cm2_cmd[cmd_bits], sport_bits);
}
- pr_err("CM_ERROR=%08llx %s <%s>\n", cm_error,
- cm2_causes[cause], buf);
+ pr_err("CM_ERROR=%08llx %s <%s>\n", cm_error,
+ cm2_causes[cause], buf);
pr_err("CM_ADDR =%08llx\n", cm_addr);
pr_err("CM_OTHER=%08llx %s\n", cm_other, cm2_causes[ocause]);
} else { /* CM3 */
@@ -457,5 +457,5 @@ void mips_cm_error_report(void)
}
/* reprime cause register */
- write_gcr_error_cause(0);
+ write_gcr_error_cause(cm_error);
}
diff --git a/arch/mips/kernel/mips-r2-to-r6-emul.c b/arch/mips/kernel/mips-r2-to-r6-emul.c
index c50c89a978f1..b4d210bfcdae 100644
--- a/arch/mips/kernel/mips-r2-to-r6-emul.c
+++ b/arch/mips/kernel/mips-r2-to-r6-emul.c
@@ -2351,23 +2351,10 @@ DEFINE_SHOW_ATTRIBUTE(mipsr2_clear);
static int __init mipsr2_init_debugfs(void)
{
- struct dentry *mipsr2_emul;
-
- if (!mips_debugfs_dir)
- return -ENODEV;
-
- mipsr2_emul = debugfs_create_file("r2_emul_stats", S_IRUGO,
- mips_debugfs_dir, NULL,
- &mipsr2_emul_fops);
- if (!mipsr2_emul)
- return -ENOMEM;
-
- mipsr2_emul = debugfs_create_file("r2_emul_stats_clear", S_IRUGO,
- mips_debugfs_dir, NULL,
- &mipsr2_clear_fops);
- if (!mipsr2_emul)
- return -ENOMEM;
-
+ debugfs_create_file("r2_emul_stats", S_IRUGO, mips_debugfs_dir, NULL,
+ &mipsr2_emul_fops);
+ debugfs_create_file("r2_emul_stats_clear", S_IRUGO, mips_debugfs_dir,
+ NULL, &mipsr2_clear_fops);
return 0;
}
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 6829a064aac8..339870ed92f7 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -371,7 +371,7 @@ static inline int is_sp_move_ins(union mips_instruction *ip, int *frame_size)
static int get_frame_info(struct mips_frame_info *info)
{
bool is_mmips = IS_ENABLED(CONFIG_CPU_MICROMIPS);
- union mips_instruction insn, *ip, *ip_end;
+ union mips_instruction insn, *ip;
const unsigned int max_insns = 128;
unsigned int last_insn_size = 0;
unsigned int i;
@@ -384,10 +384,9 @@ static int get_frame_info(struct mips_frame_info *info)
if (!ip)
goto err;
- ip_end = (void *)ip + info->func_size;
-
- for (i = 0; i < max_insns && ip < ip_end; i++) {
+ for (i = 0; i < max_insns; i++) {
ip = (void *)ip + last_insn_size;
+
if (is_mmips && mm_insn_16bit(ip->halfword[0])) {
insn.word = ip->halfword[0] << 16;
last_insn_size = 2;
diff --git a/arch/mips/kernel/segment.c b/arch/mips/kernel/segment.c
index 2703f218202e..0a9bd7b0983b 100644
--- a/arch/mips/kernel/segment.c
+++ b/arch/mips/kernel/segment.c
@@ -95,18 +95,9 @@ static const struct file_operations segments_fops = {
static int __init segments_info(void)
{
- struct dentry *segments;
-
- if (cpu_has_segments) {
- if (!mips_debugfs_dir)
- return -ENODEV;
-
- segments = debugfs_create_file("segments", S_IRUGO,
- mips_debugfs_dir, NULL,
- &segments_fops);
- if (!segments)
- return -ENOMEM;
- }
+ if (cpu_has_segments)
+ debugfs_create_file("segments", S_IRUGO, mips_debugfs_dir, NULL,
+ &segments_fops);
return 0;
}
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 8c6c48ed786a..5151532ad959 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -384,7 +384,8 @@ static void __init bootmem_init(void)
init_initrd();
reserved_end = (unsigned long) PFN_UP(__pa_symbol(&_end));
- memblock_reserve(PHYS_OFFSET, reserved_end << PAGE_SHIFT);
+ memblock_reserve(PHYS_OFFSET,
+ (reserved_end << PAGE_SHIFT) - PHYS_OFFSET);
/*
* max_low_pfn is not a number of pages. The number of pages
@@ -1010,12 +1011,7 @@ unsigned long fw_passed_dtb;
struct dentry *mips_debugfs_dir;
static int __init debugfs_mips(void)
{
- struct dentry *d;
-
- d = debugfs_create_dir("mips", NULL);
- if (!d)
- return -ENOMEM;
- mips_debugfs_dir = d;
+ mips_debugfs_dir = debugfs_create_dir("mips", NULL);
return 0;
}
arch_initcall(debugfs_mips);
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index d84b9066b465..bc4bb3c6bd00 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -39,6 +39,7 @@
#include <linux/atomic.h>
#include <asm/cpu.h>
+#include <asm/ginvt.h>
#include <asm/processor.h>
#include <asm/idle.h>
#include <asm/r4k-timer.h>
@@ -443,6 +444,8 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
/* preload SMP state for boot cpu */
void smp_prepare_boot_cpu(void)
{
+ if (mp_ops->prepare_boot_cpu)
+ mp_ops->prepare_boot_cpu();
set_cpu_possible(0, true);
set_cpu_online(0, true);
}
@@ -482,12 +485,21 @@ static void flush_tlb_all_ipi(void *info)
void flush_tlb_all(void)
{
+ if (cpu_has_mmid) {
+ htw_stop();
+ ginvt_full();
+ sync_ginv();
+ instruction_hazard();
+ htw_start();
+ return;
+ }
+
on_each_cpu(flush_tlb_all_ipi, NULL, 1);
}
static void flush_tlb_mm_ipi(void *mm)
{
- local_flush_tlb_mm((struct mm_struct *)mm);
+ drop_mmu_context((struct mm_struct *)mm);
}
/*
@@ -530,17 +542,22 @@ void flush_tlb_mm(struct mm_struct *mm)
{
preempt_disable();
- if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {
+ if (cpu_has_mmid) {
+ /*
+ * No need to worry about other CPUs - the ginvt in
+ * drop_mmu_context() will be globalized.
+ */
+ } else if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {
smp_on_other_tlbs(flush_tlb_mm_ipi, mm);
} else {
unsigned int cpu;
for_each_online_cpu(cpu) {
if (cpu != smp_processor_id() && cpu_context(cpu, mm))
- cpu_context(cpu, mm) = 0;
+ set_cpu_context(cpu, mm, 0);
}
}
- local_flush_tlb_mm(mm);
+ drop_mmu_context(mm);
preempt_enable();
}
@@ -561,9 +578,26 @@ static void flush_tlb_range_ipi(void *info)
void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end)
{
struct mm_struct *mm = vma->vm_mm;
+ unsigned long addr;
+ u32 old_mmid;
preempt_disable();
- if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {
+ if (cpu_has_mmid) {
+ htw_stop();
+ old_mmid = read_c0_memorymapid();
+ write_c0_memorymapid(cpu_asid(0, mm));
+ mtc0_tlbw_hazard();
+ addr = round_down(start, PAGE_SIZE * 2);
+ end = round_up(end, PAGE_SIZE * 2);
+ do {
+ ginvt_va_mmid(addr);
+ sync_ginv();
+ addr += PAGE_SIZE * 2;
+ } while (addr < end);
+ write_c0_memorymapid(old_mmid);
+ instruction_hazard();
+ htw_start();
+ } else if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {
struct flush_tlb_data fd = {
.vma = vma,
.addr1 = start,
@@ -571,6 +605,7 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned l
};
smp_on_other_tlbs(flush_tlb_range_ipi, &fd);
+ local_flush_tlb_range(vma, start, end);
} else {
unsigned int cpu;
int exec = vma->vm_flags & VM_EXEC;
@@ -583,10 +618,10 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned l
* mm has been completely unused by that CPU.
*/
if (cpu != smp_processor_id() && cpu_context(cpu, mm))
- cpu_context(cpu, mm) = !exec;
+ set_cpu_context(cpu, mm, !exec);
}
+ local_flush_tlb_range(vma, start, end);
}
- local_flush_tlb_range(vma, start, end);
preempt_enable();
}
@@ -616,14 +651,28 @@ static void flush_tlb_page_ipi(void *info)
void flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
{
+ u32 old_mmid;
+
preempt_disable();
- if ((atomic_read(&vma->vm_mm->mm_users) != 1) || (current->mm != vma->vm_mm)) {
+ if (cpu_has_mmid) {
+ htw_stop();
+ old_mmid = read_c0_memorymapid();
+ write_c0_memorymapid(cpu_asid(0, vma->vm_mm));
+ mtc0_tlbw_hazard();
+ ginvt_va_mmid(page);
+ sync_ginv();
+ write_c0_memorymapid(old_mmid);
+ instruction_hazard();
+ htw_start();
+ } else if ((atomic_read(&vma->vm_mm->mm_users) != 1) ||
+ (current->mm != vma->vm_mm)) {
struct flush_tlb_data fd = {
.vma = vma,
.addr1 = page,
};
smp_on_other_tlbs(flush_tlb_page_ipi, &fd);
+ local_flush_tlb_page(vma, page);
} else {
unsigned int cpu;
@@ -635,10 +684,10 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
* by that CPU.
*/
if (cpu != smp_processor_id() && cpu_context(cpu, vma->vm_mm))
- cpu_context(cpu, vma->vm_mm) = 1;
+ set_cpu_context(cpu, vma->vm_mm, 1);
}
+ local_flush_tlb_page(vma, page);
}
- local_flush_tlb_page(vma, page);
preempt_enable();
}
diff --git a/arch/mips/kernel/spinlock_test.c b/arch/mips/kernel/spinlock_test.c
index eaed550e79a2..ab4e3e1b138d 100644
--- a/arch/mips/kernel/spinlock_test.c
+++ b/arch/mips/kernel/spinlock_test.c
@@ -118,23 +118,10 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_multi, multi_get, NULL, "%llu\n");
static int __init spinlock_test(void)
{
- struct dentry *d;
-
- if (!mips_debugfs_dir)
- return -ENODEV;
-
- d = debugfs_create_file("spin_single", S_IRUGO,
- mips_debugfs_dir, NULL,
- &fops_ss);
- if (!d)
- return -ENOMEM;
-
- d = debugfs_create_file("spin_multi", S_IRUGO,
- mips_debugfs_dir, NULL,
- &fops_multi);
- if (!d)
- return -ENOMEM;
-
+ debugfs_create_file("spin_single", S_IRUGO, mips_debugfs_dir, NULL,
+ &fops_ss);
+ debugfs_create_file("spin_multi", S_IRUGO, mips_debugfs_dir, NULL,
+ &fops_multi);
return 0;
}
device_initcall(spinlock_test);
diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl
index 53d5862649ae..15f4117900ee 100644
--- a/arch/mips/kernel/syscalls/syscall_n32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n32.tbl
@@ -37,11 +37,11 @@
27 n32 madvise sys_madvise
28 n32 shmget sys_shmget
29 n32 shmat sys_shmat
-30 n32 shmctl compat_sys_shmctl
+30 n32 shmctl compat_sys_old_shmctl
31 n32 dup sys_dup
32 n32 dup2 sys_dup2
33 n32 pause sys_pause
-34 n32 nanosleep compat_sys_nanosleep
+34 n32 nanosleep sys_nanosleep_time32
35 n32 getitimer compat_sys_getitimer
36 n32 setitimer compat_sys_setitimer
37 n32 alarm sys_alarm
@@ -71,12 +71,12 @@
61 n32 uname sys_newuname
62 n32 semget sys_semget
63 n32 semop sys_semop
-64 n32 semctl compat_sys_semctl
+64 n32 semctl compat_sys_old_semctl
65 n32 shmdt sys_shmdt
66 n32 msgget sys_msgget
67 n32 msgsnd compat_sys_msgsnd
68 n32 msgrcv compat_sys_msgrcv
-69 n32 msgctl compat_sys_msgctl
+69 n32 msgctl compat_sys_old_msgctl
70 n32 fcntl compat_sys_fcntl
71 n32 flock sys_flock
72 n32 fsync sys_fsync
@@ -133,11 +133,11 @@
123 n32 capget sys_capget
124 n32 capset sys_capset
125 n32 rt_sigpending compat_sys_rt_sigpending
-126 n32 rt_sigtimedwait compat_sys_rt_sigtimedwait
+126 n32 rt_sigtimedwait compat_sys_rt_sigtimedwait_time32
127 n32 rt_sigqueueinfo compat_sys_rt_sigqueueinfo
128 n32 rt_sigsuspend compat_sys_rt_sigsuspend
129 n32 sigaltstack compat_sys_sigaltstack
-130 n32 utime compat_sys_utime
+130 n32 utime sys_utime32
131 n32 mknod sys_mknod
132 n32 personality sys_32_personality
133 n32 ustat compat_sys_ustat
@@ -152,7 +152,7 @@
142 n32 sched_getscheduler sys_sched_getscheduler
143 n32 sched_get_priority_max sys_sched_get_priority_max
144 n32 sched_get_priority_min sys_sched_get_priority_min
-145 n32 sched_rr_get_interval compat_sys_sched_rr_get_interval
+145 n32 sched_rr_get_interval sys_sched_rr_get_interval_time32
146 n32 mlock sys_mlock
147 n32 munlock sys_munlock
148 n32 mlockall sys_mlockall
@@ -161,7 +161,7 @@
151 n32 pivot_root sys_pivot_root
152 n32 _sysctl compat_sys_sysctl
153 n32 prctl sys_prctl
-154 n32 adjtimex compat_sys_adjtimex
+154 n32 adjtimex sys_adjtimex_time32
155 n32 setrlimit compat_sys_setrlimit
156 n32 chroot sys_chroot
157 n32 sync sys_sync
@@ -202,7 +202,7 @@
191 n32 fremovexattr sys_fremovexattr
192 n32 tkill sys_tkill
193 n32 reserved193 sys_ni_syscall
-194 n32 futex compat_sys_futex
+194 n32 futex sys_futex_time32
195 n32 sched_setaffinity compat_sys_sched_setaffinity
196 n32 sched_getaffinity compat_sys_sched_getaffinity
197 n32 cacheflush sys_cacheflush
@@ -210,7 +210,7 @@
199 n32 sysmips __sys_sysmips
200 n32 io_setup compat_sys_io_setup
201 n32 io_destroy sys_io_destroy
-202 n32 io_getevents compat_sys_io_getevents
+202 n32 io_getevents sys_io_getevents_time32
203 n32 io_submit compat_sys_io_submit
204 n32 io_cancel sys_io_cancel
205 n32 exit_group sys_exit_group
@@ -223,29 +223,29 @@
212 n32 fcntl64 compat_sys_fcntl64
213 n32 set_tid_address sys_set_tid_address
214 n32 restart_syscall sys_restart_syscall
-215 n32 semtimedop compat_sys_semtimedop
+215 n32 semtimedop sys_semtimedop_time32
216 n32 fadvise64 sys_fadvise64_64
217 n32 statfs64 compat_sys_statfs64
218 n32 fstatfs64 compat_sys_fstatfs64
219 n32 sendfile64 sys_sendfile64
220 n32 timer_create compat_sys_timer_create
-221 n32 timer_settime compat_sys_timer_settime
-222 n32 timer_gettime compat_sys_timer_gettime
+221 n32 timer_settime sys_timer_settime32
+222 n32 timer_gettime sys_timer_gettime32
223 n32 timer_getoverrun sys_timer_getoverrun
224 n32 timer_delete sys_timer_delete
-225 n32 clock_settime compat_sys_clock_settime
-226 n32 clock_gettime compat_sys_clock_gettime
-227 n32 clock_getres compat_sys_clock_getres
-228 n32 clock_nanosleep compat_sys_clock_nanosleep
+225 n32 clock_settime sys_clock_settime32
+226 n32 clock_gettime sys_clock_gettime32
+227 n32 clock_getres sys_clock_getres_time32
+228 n32 clock_nanosleep sys_clock_nanosleep_time32
229 n32 tgkill sys_tgkill
-230 n32 utimes compat_sys_utimes
+230 n32 utimes sys_utimes_time32
231 n32 mbind compat_sys_mbind
232 n32 get_mempolicy compat_sys_get_mempolicy
233 n32 set_mempolicy compat_sys_set_mempolicy
234 n32 mq_open compat_sys_mq_open
235 n32 mq_unlink sys_mq_unlink
-236 n32 mq_timedsend compat_sys_mq_timedsend
-237 n32 mq_timedreceive compat_sys_mq_timedreceive
+236 n32 mq_timedsend sys_mq_timedsend_time32
+237 n32 mq_timedreceive sys_mq_timedreceive_time32
238 n32 mq_notify compat_sys_mq_notify
239 n32 mq_getsetattr compat_sys_mq_getsetattr
240 n32 vserver sys_ni_syscall
@@ -263,7 +263,7 @@
252 n32 mkdirat sys_mkdirat
253 n32 mknodat sys_mknodat
254 n32 fchownat sys_fchownat
-255 n32 futimesat compat_sys_futimesat
+255 n32 futimesat sys_futimesat_time32
256 n32 newfstatat sys_newfstatat
257 n32 unlinkat sys_unlinkat
258 n32 renameat sys_renameat
@@ -272,8 +272,8 @@
261 n32 readlinkat sys_readlinkat
262 n32 fchmodat sys_fchmodat
263 n32 faccessat sys_faccessat
-264 n32 pselect6 compat_sys_pselect6
-265 n32 ppoll compat_sys_ppoll
+264 n32 pselect6 compat_sys_pselect6_time32
+265 n32 ppoll compat_sys_ppoll_time32
266 n32 unshare sys_unshare
267 n32 splice sys_splice
268 n32 sync_file_range sys_sync_file_range
@@ -287,14 +287,14 @@
276 n32 epoll_pwait compat_sys_epoll_pwait
277 n32 ioprio_set sys_ioprio_set
278 n32 ioprio_get sys_ioprio_get
-279 n32 utimensat compat_sys_utimensat
+279 n32 utimensat sys_utimensat_time32
280 n32 signalfd compat_sys_signalfd
281 n32 timerfd sys_ni_syscall
282 n32 eventfd sys_eventfd
283 n32 fallocate sys_fallocate
284 n32 timerfd_create sys_timerfd_create
-285 n32 timerfd_gettime compat_sys_timerfd_gettime
-286 n32 timerfd_settime compat_sys_timerfd_settime
+285 n32 timerfd_gettime sys_timerfd_gettime32
+286 n32 timerfd_settime sys_timerfd_settime32
287 n32 signalfd4 compat_sys_signalfd4
288 n32 eventfd2 sys_eventfd2
289 n32 epoll_create1 sys_epoll_create1
@@ -306,14 +306,14 @@
295 n32 rt_tgsigqueueinfo compat_sys_rt_tgsigqueueinfo
296 n32 perf_event_open sys_perf_event_open
297 n32 accept4 sys_accept4
-298 n32 recvmmsg compat_sys_recvmmsg
+298 n32 recvmmsg compat_sys_recvmmsg_time32
299 n32 getdents64 sys_getdents64
300 n32 fanotify_init sys_fanotify_init
301 n32 fanotify_mark sys_fanotify_mark
302 n32 prlimit64 sys_prlimit64
303 n32 name_to_handle_at sys_name_to_handle_at
304 n32 open_by_handle_at sys_open_by_handle_at
-305 n32 clock_adjtime compat_sys_clock_adjtime
+305 n32 clock_adjtime sys_clock_adjtime32
306 n32 syncfs sys_syncfs
307 n32 sendmmsg compat_sys_sendmmsg
308 n32 setns sys_setns
@@ -341,3 +341,24 @@
330 n32 statx sys_statx
331 n32 rseq sys_rseq
332 n32 io_pgetevents compat_sys_io_pgetevents
+# 333 through 402 are unassigned to sync up with generic numbers
+403 n32 clock_gettime64 sys_clock_gettime
+404 n32 clock_settime64 sys_clock_settime
+405 n32 clock_adjtime64 sys_clock_adjtime
+406 n32 clock_getres_time64 sys_clock_getres
+407 n32 clock_nanosleep_time64 sys_clock_nanosleep
+408 n32 timer_gettime64 sys_timer_gettime
+409 n32 timer_settime64 sys_timer_settime
+410 n32 timerfd_gettime64 sys_timerfd_gettime
+411 n32 timerfd_settime64 sys_timerfd_settime
+412 n32 utimensat_time64 sys_utimensat
+413 n32 pselect6_time64 compat_sys_pselect6_time64
+414 n32 ppoll_time64 compat_sys_ppoll_time64
+416 n32 io_pgetevents_time64 sys_io_pgetevents
+417 n32 recvmmsg_time64 compat_sys_recvmmsg_time64
+418 n32 mq_timedsend_time64 sys_mq_timedsend
+419 n32 mq_timedreceive_time64 sys_mq_timedreceive
+420 n32 semtimedop_time64 sys_semtimedop
+421 n32 rt_sigtimedwait_time64 compat_sys_rt_sigtimedwait_time64
+422 n32 futex_time64 sys_futex
+423 n32 sched_rr_get_interval_time64 sys_sched_rr_get_interval
diff --git a/arch/mips/kernel/syscalls/syscall_n64.tbl b/arch/mips/kernel/syscalls/syscall_n64.tbl
index a8286ccbb66c..c85502e67b44 100644
--- a/arch/mips/kernel/syscalls/syscall_n64.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n64.tbl
@@ -37,7 +37,7 @@
27 n64 madvise sys_madvise
28 n64 shmget sys_shmget
29 n64 shmat sys_shmat
-30 n64 shmctl sys_shmctl
+30 n64 shmctl sys_old_shmctl
31 n64 dup sys_dup
32 n64 dup2 sys_dup2
33 n64 pause sys_pause
@@ -71,12 +71,12 @@
61 n64 uname sys_newuname
62 n64 semget sys_semget
63 n64 semop sys_semop
-64 n64 semctl sys_semctl
+64 n64 semctl sys_old_semctl
65 n64 shmdt sys_shmdt
66 n64 msgget sys_msgget
67 n64 msgsnd sys_msgsnd
68 n64 msgrcv sys_msgrcv
-69 n64 msgctl sys_msgctl
+69 n64 msgctl sys_old_msgctl
70 n64 fcntl sys_fcntl
71 n64 flock sys_flock
72 n64 fsync sys_fsync
@@ -337,3 +337,4 @@
326 n64 statx sys_statx
327 n64 rseq sys_rseq
328 n64 io_pgetevents sys_io_pgetevents
+# 329 through 423 are reserved to sync up with other architectures
diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl
index 3d5a47b80d2b..2e063d0f837e 100644
--- a/arch/mips/kernel/syscalls/syscall_o32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_o32.tbl
@@ -20,7 +20,7 @@
10 o32 unlink sys_unlink
11 o32 execve sys_execve compat_sys_execve
12 o32 chdir sys_chdir
-13 o32 time sys_time compat_sys_time
+13 o32 time sys_time32
14 o32 mknod sys_mknod
15 o32 chmod sys_chmod
16 o32 lchown sys_lchown
@@ -33,13 +33,13 @@
22 o32 umount sys_oldumount
23 o32 setuid sys_setuid
24 o32 getuid sys_getuid
-25 o32 stime sys_stime compat_sys_stime
+25 o32 stime sys_stime32
26 o32 ptrace sys_ptrace compat_sys_ptrace
27 o32 alarm sys_alarm
# 28 was sys_fstat
28 o32 unused28 sys_ni_syscall
29 o32 pause sys_pause
-30 o32 utime sys_utime compat_sys_utime
+30 o32 utime sys_utime32
31 o32 stty sys_ni_syscall
32 o32 gtty sys_ni_syscall
33 o32 access sys_access
@@ -135,7 +135,7 @@
121 o32 setdomainname sys_setdomainname
122 o32 uname sys_newuname
123 o32 modify_ldt sys_ni_syscall
-124 o32 adjtimex sys_adjtimex compat_sys_adjtimex
+124 o32 adjtimex sys_adjtimex_time32
125 o32 mprotect sys_mprotect
126 o32 sigprocmask sys_sigprocmask compat_sys_sigprocmask
127 o32 create_module sys_ni_syscall
@@ -176,8 +176,8 @@
162 o32 sched_yield sys_sched_yield
163 o32 sched_get_priority_max sys_sched_get_priority_max
164 o32 sched_get_priority_min sys_sched_get_priority_min
-165 o32 sched_rr_get_interval sys_sched_rr_get_interval compat_sys_sched_rr_get_interval
-166 o32 nanosleep sys_nanosleep compat_sys_nanosleep
+165 o32 sched_rr_get_interval sys_sched_rr_get_interval_time32
+166 o32 nanosleep sys_nanosleep_time32
167 o32 mremap sys_mremap
168 o32 accept sys_accept
169 o32 bind sys_bind
@@ -208,7 +208,7 @@
194 o32 rt_sigaction sys_rt_sigaction compat_sys_rt_sigaction
195 o32 rt_sigprocmask sys_rt_sigprocmask compat_sys_rt_sigprocmask
196 o32 rt_sigpending sys_rt_sigpending compat_sys_rt_sigpending
-197 o32 rt_sigtimedwait sys_rt_sigtimedwait compat_sys_rt_sigtimedwait
+197 o32 rt_sigtimedwait sys_rt_sigtimedwait_time32 compat_sys_rt_sigtimedwait_time32
198 o32 rt_sigqueueinfo sys_rt_sigqueueinfo compat_sys_rt_sigqueueinfo
199 o32 rt_sigsuspend sys_rt_sigsuspend compat_sys_rt_sigsuspend
200 o32 pread64 sys_pread64 sys_32_pread
@@ -249,12 +249,12 @@
235 o32 fremovexattr sys_fremovexattr
236 o32 tkill sys_tkill
237 o32 sendfile64 sys_sendfile64
-238 o32 futex sys_futex compat_sys_futex
+238 o32 futex sys_futex_time32
239 o32 sched_setaffinity sys_sched_setaffinity compat_sys_sched_setaffinity
240 o32 sched_getaffinity sys_sched_getaffinity compat_sys_sched_getaffinity
241 o32 io_setup sys_io_setup compat_sys_io_setup
242 o32 io_destroy sys_io_destroy
-243 o32 io_getevents sys_io_getevents compat_sys_io_getevents
+243 o32 io_getevents sys_io_getevents_time32
244 o32 io_submit sys_io_submit compat_sys_io_submit
245 o32 io_cancel sys_io_cancel
246 o32 exit_group sys_exit_group
@@ -269,23 +269,23 @@
255 o32 statfs64 sys_statfs64 compat_sys_statfs64
256 o32 fstatfs64 sys_fstatfs64 compat_sys_fstatfs64
257 o32 timer_create sys_timer_create compat_sys_timer_create
-258 o32 timer_settime sys_timer_settime compat_sys_timer_settime
-259 o32 timer_gettime sys_timer_gettime compat_sys_timer_gettime
+258 o32 timer_settime sys_timer_settime32
+259 o32 timer_gettime sys_timer_gettime32
260 o32 timer_getoverrun sys_timer_getoverrun
261 o32 timer_delete sys_timer_delete
-262 o32 clock_settime sys_clock_settime compat_sys_clock_settime
-263 o32 clock_gettime sys_clock_gettime compat_sys_clock_gettime
-264 o32 clock_getres sys_clock_getres compat_sys_clock_getres
-265 o32 clock_nanosleep sys_clock_nanosleep compat_sys_clock_nanosleep
+262 o32 clock_settime sys_clock_settime32
+263 o32 clock_gettime sys_clock_gettime32
+264 o32 clock_getres sys_clock_getres_time32
+265 o32 clock_nanosleep sys_clock_nanosleep_time32
266 o32 tgkill sys_tgkill
-267 o32 utimes sys_utimes compat_sys_utimes
+267 o32 utimes sys_utimes_time32
268 o32 mbind sys_mbind compat_sys_mbind
269 o32 get_mempolicy sys_get_mempolicy compat_sys_get_mempolicy
270 o32 set_mempolicy sys_set_mempolicy compat_sys_set_mempolicy
271 o32 mq_open sys_mq_open compat_sys_mq_open
272 o32 mq_unlink sys_mq_unlink
-273 o32 mq_timedsend sys_mq_timedsend compat_sys_mq_timedsend
-274 o32 mq_timedreceive sys_mq_timedreceive compat_sys_mq_timedreceive
+273 o32 mq_timedsend sys_mq_timedsend_time32
+274 o32 mq_timedreceive sys_mq_timedreceive_time32
275 o32 mq_notify sys_mq_notify compat_sys_mq_notify
276 o32 mq_getsetattr sys_mq_getsetattr compat_sys_mq_getsetattr
277 o32 vserver sys_ni_syscall
@@ -303,7 +303,7 @@
289 o32 mkdirat sys_mkdirat
290 o32 mknodat sys_mknodat
291 o32 fchownat sys_fchownat
-292 o32 futimesat sys_futimesat compat_sys_futimesat
+292 o32 futimesat sys_futimesat_time32
293 o32 fstatat64 sys_fstatat64 sys_newfstatat
294 o32 unlinkat sys_unlinkat
295 o32 renameat sys_renameat
@@ -312,8 +312,8 @@
298 o32 readlinkat sys_readlinkat
299 o32 fchmodat sys_fchmodat
300 o32 faccessat sys_faccessat
-301 o32 pselect6 sys_pselect6 compat_sys_pselect6
-302 o32 ppoll sys_ppoll compat_sys_ppoll
+301 o32 pselect6 sys_pselect6_time32 compat_sys_pselect6_time32
+302 o32 ppoll sys_ppoll_time32 compat_sys_ppoll_time32
303 o32 unshare sys_unshare
304 o32 splice sys_splice
305 o32 sync_file_range sys_sync_file_range sys32_sync_file_range
@@ -327,14 +327,14 @@
313 o32 epoll_pwait sys_epoll_pwait compat_sys_epoll_pwait
314 o32 ioprio_set sys_ioprio_set
315 o32 ioprio_get sys_ioprio_get
-316 o32 utimensat sys_utimensat compat_sys_utimensat
+316 o32 utimensat sys_utimensat_time32
317 o32 signalfd sys_signalfd compat_sys_signalfd
318 o32 timerfd sys_ni_syscall
319 o32 eventfd sys_eventfd
320 o32 fallocate sys_fallocate sys32_fallocate
321 o32 timerfd_create sys_timerfd_create
-322 o32 timerfd_gettime sys_timerfd_gettime compat_sys_timerfd_gettime
-323 o32 timerfd_settime sys_timerfd_settime compat_sys_timerfd_settime
+322 o32 timerfd_gettime sys_timerfd_gettime32
+323 o32 timerfd_settime sys_timerfd_settime32
324 o32 signalfd4 sys_signalfd4 compat_sys_signalfd4
325 o32 eventfd2 sys_eventfd2
326 o32 epoll_create1 sys_epoll_create1
@@ -346,13 +346,13 @@
332 o32 rt_tgsigqueueinfo sys_rt_tgsigqueueinfo compat_sys_rt_tgsigqueueinfo
333 o32 perf_event_open sys_perf_event_open
334 o32 accept4 sys_accept4
-335 o32 recvmmsg sys_recvmmsg compat_sys_recvmmsg
+335 o32 recvmmsg sys_recvmmsg_time32 compat_sys_recvmmsg_time32
336 o32 fanotify_init sys_fanotify_init
337 o32 fanotify_mark sys_fanotify_mark compat_sys_fanotify_mark
338 o32 prlimit64 sys_prlimit64
339 o32 name_to_handle_at sys_name_to_handle_at
340 o32 open_by_handle_at sys_open_by_handle_at compat_sys_open_by_handle_at
-341 o32 clock_adjtime sys_clock_adjtime compat_sys_clock_adjtime
+341 o32 clock_adjtime sys_clock_adjtime32
342 o32 syncfs sys_syncfs
343 o32 sendmmsg sys_sendmmsg compat_sys_sendmmsg
344 o32 setns sys_setns
@@ -379,4 +379,35 @@
365 o32 pkey_free sys_pkey_free
366 o32 statx sys_statx
367 o32 rseq sys_rseq
-368 o32 io_pgetevents sys_io_pgetevents compat_sys_io_pgetevents
+368 o32 io_pgetevents sys_io_pgetevents_time32 compat_sys_io_pgetevents
+# room for arch specific calls
+393 o32 semget sys_semget
+394 o32 semctl sys_semctl compat_sys_semctl
+395 o32 shmget sys_shmget
+396 o32 shmctl sys_shmctl compat_sys_shmctl
+397 o32 shmat sys_shmat compat_sys_shmat
+398 o32 shmdt sys_shmdt
+399 o32 msgget sys_msgget
+400 o32 msgsnd sys_msgsnd compat_sys_msgsnd
+401 o32 msgrcv sys_msgrcv compat_sys_msgrcv
+402 o32 msgctl sys_msgctl compat_sys_msgctl
+403 o32 clock_gettime64 sys_clock_gettime sys_clock_gettime
+404 o32 clock_settime64 sys_clock_settime sys_clock_settime
+405 o32 clock_adjtime64 sys_clock_adjtime sys_clock_adjtime
+406 o32 clock_getres_time64 sys_clock_getres sys_clock_getres
+407 o32 clock_nanosleep_time64 sys_clock_nanosleep sys_clock_nanosleep
+408 o32 timer_gettime64 sys_timer_gettime sys_timer_gettime
+409 o32 timer_settime64 sys_timer_settime sys_timer_settime
+410 o32 timerfd_gettime64 sys_timerfd_gettime sys_timerfd_gettime
+411 o32 timerfd_settime64 sys_timerfd_settime sys_timerfd_settime
+412 o32 utimensat_time64 sys_utimensat sys_utimensat
+413 o32 pselect6_time64 sys_pselect6 compat_sys_pselect6_time64
+414 o32 ppoll_time64 sys_ppoll compat_sys_ppoll_time64
+416 o32 io_pgetevents_time64 sys_io_pgetevents sys_io_pgetevents
+417 o32 recvmmsg_time64 sys_recvmmsg compat_sys_recvmmsg_time64
+418 o32 mq_timedsend_time64 sys_mq_timedsend sys_mq_timedsend
+419 o32 mq_timedreceive_time64 sys_mq_timedreceive sys_mq_timedreceive
+420 o32 semtimedop_time64 sys_semtimedop sys_semtimedop
+421 o32 rt_sigtimedwait_time64 sys_rt_sigtimedwait compat_sys_rt_sigtimedwait_time64
+422 o32 futex_time64 sys_futex sys_futex
+423 o32 sched_rr_get_interval_time64 sys_sched_rr_get_interval sys_sched_rr_get_interval
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index c91097f7b32f..42d411125690 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1077,7 +1077,7 @@ asmlinkage void do_tr(struct pt_regs *regs)
seg = get_fs();
if (!user_mode(regs))
- set_fs(get_ds());
+ set_fs(KERNEL_DS);
prev_state = exception_enter();
current->thread.trap_nr = (regs->cp0_cause >> 2) & 0x1f;
@@ -2223,7 +2223,9 @@ void per_cpu_trap_init(bool is_boot_cpu)
cp0_fdc_irq = -1;
}
- if (!cpu_data[cpu].asid_cache)
+ if (cpu_has_mmid)
+ cpu_data[cpu].asid_cache = 0;
+ else if (!cpu_data[cpu].asid_cache)
cpu_data[cpu].asid_cache = asid_first_version(cpu);
mmgrab(&init_mm);
diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c
index 595ca9c85111..76e33f940971 100644
--- a/arch/mips/kernel/unaligned.c
+++ b/arch/mips/kernel/unaligned.c
@@ -89,6 +89,7 @@
#include <asm/fpu.h>
#include <asm/fpu_emulator.h>
#include <asm/inst.h>
+#include <asm/mmu_context.h>
#include <linux/uaccess.h>
#define STR(x) __STR(x)
@@ -2374,18 +2375,10 @@ sigbus:
#ifdef CONFIG_DEBUG_FS
static int __init debugfs_unaligned(void)
{
- struct dentry *d;
-
- if (!mips_debugfs_dir)
- return -ENODEV;
- d = debugfs_create_u32("unaligned_instructions", S_IRUGO,
- mips_debugfs_dir, &unaligned_instructions);
- if (!d)
- return -ENOMEM;
- d = debugfs_create_u32("unaligned_action", S_IRUGO | S_IWUSR,
- mips_debugfs_dir, &unaligned_action);
- if (!d)
- return -ENOMEM;
+ debugfs_create_u32("unaligned_instructions", S_IRUGO, mips_debugfs_dir,
+ &unaligned_instructions);
+ debugfs_create_u32("unaligned_action", S_IRUGO | S_IWUSR,
+ mips_debugfs_dir, &unaligned_action);
return 0;
}
arch_initcall(debugfs_unaligned);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.