summaryrefslogtreecommitdiffstats
path: root/arch/parisc/kernel
diff options
context:
space:
mode:
Diffstat (limited to 'arch/parisc/kernel')
-rw-r--r--arch/parisc/kernel/cache.c6
-rw-r--r--arch/parisc/kernel/drivers.c7
-rw-r--r--arch/parisc/kernel/firmware.c14
-rw-r--r--arch/parisc/kernel/processor.c16
-rw-r--r--arch/parisc/kernel/setup.c3
-rw-r--r--arch/parisc/kernel/smp.c8
-rw-r--r--arch/parisc/kernel/syscalls/syscall.tbl6
-rw-r--r--arch/parisc/kernel/unaligned.c44
-rw-r--r--arch/parisc/kernel/unwind.c14
9 files changed, 53 insertions, 65 deletions
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 268d90a932..393822f167 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -58,7 +58,7 @@ int pa_serialize_tlb_flushes __ro_after_init;
struct pdc_cache_info cache_info __ro_after_init;
#ifndef CONFIG_PA20
-struct pdc_btlb_info btlb_info __ro_after_init;
+struct pdc_btlb_info btlb_info;
#endif
DEFINE_STATIC_KEY_TRUE(parisc_has_cache);
@@ -850,7 +850,7 @@ SYSCALL_DEFINE3(cacheflush, unsigned long, addr, unsigned long, bytes,
#endif
" fic,m %3(%4,%0)\n"
"2: sync\n"
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 2b)
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 2b, "%1")
: "+r" (start), "+r" (error)
: "r" (end), "r" (dcache_stride), "i" (SR_USER));
}
@@ -865,7 +865,7 @@ SYSCALL_DEFINE3(cacheflush, unsigned long, addr, unsigned long, bytes,
#endif
" fdc,m %3(%4,%0)\n"
"2: sync\n"
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 2b)
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 2b, "%1")
: "+r" (start), "+r" (error)
: "r" (end), "r" (icache_stride), "i" (SR_USER));
}
diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index ed8b759480..404ea37705 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -927,8 +927,8 @@ static __init void qemu_header(void)
#define p ((unsigned long *)&boot_cpu_data.pdc.model)
pr_info("#define PARISC_PDC_MODEL 0x%lx, 0x%lx, 0x%lx, "
- "0x%lx, 0x%lx, 0x%lx, 0x%lx, 0x%lx, 0x%lx\n\n",
- p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8]);
+ "0x%lx, 0x%lx, 0x%lx, 0x%lx, 0x%lx, 0x%lx, 0x%lx\n\n",
+ p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8], p[9]);
#undef p
pr_info("#define PARISC_PDC_VERSION 0x%04lx\n\n",
@@ -1004,6 +1004,9 @@ static __init int qemu_print_iodc_data(struct device *lin_dev, void *data)
pr_info("\n");
+ /* Prevent hung task messages when printing on serial console */
+ cond_resched();
+
pr_info("#define HPA_%08lx_DESCRIPTION \"%s\"\n",
hpa, parisc_hardware_description(&dev->id));
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 56e694f6ac..c69f6d5946 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -78,12 +78,12 @@ static unsigned long pdc_result[NUM_PDC_RESULT] __aligned(8);
static unsigned long pdc_result2[NUM_PDC_RESULT] __aligned(8);
#ifdef CONFIG_64BIT
-#define WIDE_FIRMWARE 0x1
-#define NARROW_FIRMWARE 0x2
+#define WIDE_FIRMWARE PDC_MODEL_OS64
+#define NARROW_FIRMWARE PDC_MODEL_OS32
-/* Firmware needs to be initially set to narrow to determine the
+/* Firmware needs to be initially set to narrow to determine the
* actual firmware width. */
-int parisc_narrow_firmware __ro_after_init = 2;
+int parisc_narrow_firmware __ro_after_init = NARROW_FIRMWARE;
#endif
/* On most currently-supported platforms, IODC I/O calls are 32-bit calls
@@ -166,10 +166,10 @@ void set_firmware_width_unlocked(void)
if (pdc_result[0] != NARROW_FIRMWARE)
parisc_narrow_firmware = 0;
}
-
+
/**
* set_firmware_width - Determine if the firmware is wide or narrow.
- *
+ *
* This function must be called before any pdc_* function that uses the
* convert_to_wide function.
*/
@@ -178,7 +178,7 @@ void set_firmware_width(void)
unsigned long flags;
/* already initialized? */
- if (parisc_narrow_firmware != 2)
+ if (parisc_narrow_firmware != NARROW_FIRMWARE)
return;
spin_lock_irqsave(&pdc_lock, flags);
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 1fc89fa2c2..bf73562706 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -172,7 +172,6 @@ static int __init processor_probe(struct parisc_device *dev)
p->cpu_num = cpu_info.cpu_num;
p->cpu_loc = cpu_info.cpu_loc;
- set_cpu_possible(cpuid, true);
store_cpu_topology(cpuid);
#ifdef CONFIG_SMP
@@ -242,9 +241,9 @@ void __init collect_boot_cpu_data(void)
/* get CPU-Model Information... */
#define p ((unsigned long *)&boot_cpu_data.pdc.model)
if (pdc_model_info(&boot_cpu_data.pdc.model) == PDC_OK) {
- printk(KERN_INFO
- "model %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
- p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8]);
+ printk(KERN_INFO
+ "model %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+ p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8], p[9]);
add_device_randomness(&boot_cpu_data.pdc.model,
sizeof(boot_cpu_data.pdc.model));
@@ -383,7 +382,7 @@ show_cpuinfo (struct seq_file *m, void *v)
char cpu_name[60], *p;
/* strip PA path from CPU name to not confuse lscpu */
- strlcpy(cpu_name, per_cpu(cpu_data, 0).dev->name, sizeof(cpu_name));
+ strscpy(cpu_name, per_cpu(cpu_data, 0).dev->name, sizeof(cpu_name));
p = strrchr(cpu_name, '[');
if (p)
*(--p) = 0;
@@ -474,13 +473,6 @@ static struct parisc_driver cpu_driver __refdata = {
*/
void __init processor_init(void)
{
- unsigned int cpu;
-
reset_cpu_topology();
-
- /* reset possible mask. We will mark those which are possible. */
- for_each_possible_cpu(cpu)
- set_cpu_possible(cpu, false);
-
register_parisc_driver(&cpu_driver);
}
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 2f434f2da1..ace483b6f1 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -100,9 +100,6 @@ static void __init dma_ops_init(void)
void __init setup_arch(char **cmdline_p)
{
-#ifdef CONFIG_64BIT
- extern int parisc_narrow_firmware;
-#endif
unwind_init();
init_per_cpu(smp_processor_id()); /* Set Modes & Enable FP */
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 2019c1f04b..444154271f 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -404,13 +404,7 @@ alive:
void __init smp_prepare_boot_cpu(void)
{
- int bootstrap_processor = per_cpu(cpu_data, 0).cpuid;
-
- /* Setup BSP mappings */
- printk(KERN_INFO "SMP: bootstrap CPU ID is %d\n", bootstrap_processor);
-
- set_cpu_online(bootstrap_processor, true);
- set_cpu_present(bootstrap_processor, true);
+ pr_info("SMP: bootstrap CPU ID is 0\n");
}
diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
index e97c175b56..a47798fed5 100644
--- a/arch/parisc/kernel/syscalls/syscall.tbl
+++ b/arch/parisc/kernel/syscalls/syscall.tbl
@@ -245,7 +245,7 @@
# 220 was alloc_hugepages
# 221 was free_hugepages
222 common exit_group sys_exit_group
-223 common lookup_dcookie sys_lookup_dcookie compat_sys_lookup_dcookie
+223 common lookup_dcookie sys_ni_syscall
224 common epoll_create sys_epoll_create
225 common epoll_ctl sys_epoll_ctl
226 common epoll_wait sys_epoll_wait
@@ -451,3 +451,7 @@
450 common set_mempolicy_home_node sys_set_mempolicy_home_node
451 common cachestat sys_cachestat
452 common fchmodat2 sys_fchmodat2
+453 common map_shadow_stack sys_map_shadow_stack
+454 common futex_wake sys_futex_wake
+455 common futex_wait sys_futex_wait
+456 common futex_requeue sys_futex_requeue
diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index ce25acfe48..c520e551a1 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -120,8 +120,8 @@ static int emulate_ldh(struct pt_regs *regs, int toreg)
"2: ldbs 1(%%sr1,%3), %0\n"
" depw %2, 23, 24, %0\n"
"3: \n"
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 3b)
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 3b)
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 3b, "%1")
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 3b, "%1")
: "+r" (val), "+r" (ret), "=&r" (temp1)
: "r" (saddr), "r" (regs->isr) );
@@ -152,8 +152,8 @@ static int emulate_ldw(struct pt_regs *regs, int toreg, int flop)
" mtctl %2,11\n"
" vshd %0,%3,%0\n"
"3: \n"
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 3b)
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 3b)
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 3b, "%1")
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 3b, "%1")
: "+r" (val), "+r" (ret), "=&r" (temp1), "=&r" (temp2)
: "r" (saddr), "r" (regs->isr) );
@@ -189,8 +189,8 @@ static int emulate_ldd(struct pt_regs *regs, int toreg, int flop)
" mtsar %%r19\n"
" shrpd %0,%%r20,%%sar,%0\n"
"3: \n"
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 3b)
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 3b)
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 3b, "%1")
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 3b, "%1")
: "=r" (val), "+r" (ret)
: "0" (val), "r" (saddr), "r" (regs->isr)
: "r19", "r20" );
@@ -209,9 +209,9 @@ static int emulate_ldd(struct pt_regs *regs, int toreg, int flop)
" vshd %0,%R0,%0\n"
" vshd %R0,%4,%R0\n"
"4: \n"
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 4b)
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 4b)
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(3b, 4b)
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 4b, "%1")
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 4b, "%1")
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(3b, 4b, "%1")
: "+r" (val), "+r" (ret), "+r" (saddr), "=&r" (shift), "=&r" (temp1)
: "r" (regs->isr) );
}
@@ -244,8 +244,8 @@ static int emulate_sth(struct pt_regs *regs, int frreg)
"1: stb %1, 0(%%sr1, %3)\n"
"2: stb %2, 1(%%sr1, %3)\n"
"3: \n"
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 3b)
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 3b)
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 3b, "%0")
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 3b, "%0")
: "+r" (ret), "=&r" (temp1)
: "r" (val), "r" (regs->ior), "r" (regs->isr) );
@@ -285,8 +285,8 @@ static int emulate_stw(struct pt_regs *regs, int frreg, int flop)
" stw %%r20,0(%%sr1,%2)\n"
" stw %%r21,4(%%sr1,%2)\n"
"3: \n"
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 3b)
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 3b)
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 3b, "%0")
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 3b, "%0")
: "+r" (ret)
: "r" (val), "r" (regs->ior), "r" (regs->isr)
: "r19", "r20", "r21", "r22", "r1" );
@@ -329,10 +329,10 @@ static int emulate_std(struct pt_regs *regs, int frreg, int flop)
"3: std %%r20,0(%%sr1,%2)\n"
"4: std %%r21,8(%%sr1,%2)\n"
"5: \n"
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 5b)
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 5b)
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(3b, 5b)
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(4b, 5b)
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 5b, "%0")
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 5b, "%0")
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(3b, 5b, "%0")
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(4b, 5b, "%0")
: "+r" (ret)
: "r" (val), "r" (regs->ior), "r" (regs->isr)
: "r19", "r20", "r21", "r22", "r1" );
@@ -357,11 +357,11 @@ static int emulate_std(struct pt_regs *regs, int frreg, int flop)
"4: stw %%r1,4(%%sr1,%2)\n"
"5: stw %R1,8(%%sr1,%2)\n"
"6: \n"
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 6b)
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 6b)
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(3b, 6b)
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(4b, 6b)
- ASM_EXCEPTIONTABLE_ENTRY_EFAULT(5b, 6b)
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 6b, "%0")
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 6b, "%0")
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(3b, 6b, "%0")
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(4b, 6b, "%0")
+ ASM_EXCEPTIONTABLE_ENTRY_EFAULT(5b, 6b, "%0")
: "+r" (ret)
: "r" (val), "r" (regs->ior), "r" (regs->isr)
: "r19", "r20", "r21", "r1" );
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 27ae40a443..f7e0fee5ee 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -228,10 +228,8 @@ static int unwind_special(struct unwind_frame_info *info, unsigned long pc, int
#ifdef CONFIG_IRQSTACKS
extern void * const _call_on_stack;
#endif /* CONFIG_IRQSTACKS */
- void *ptr;
- ptr = dereference_kernel_function_descriptor(&handle_interruption);
- if (pc_is_kernel_fn(pc, ptr)) {
+ if (pc_is_kernel_fn(pc, handle_interruption)) {
struct pt_regs *regs = (struct pt_regs *)(info->sp - frame_size - PT_SZ_ALGN);
dbg("Unwinding through handle_interruption()\n");
info->prev_sp = regs->gr[30];
@@ -239,13 +237,13 @@ static int unwind_special(struct unwind_frame_info *info, unsigned long pc, int
return 1;
}
- if (pc_is_kernel_fn(pc, ret_from_kernel_thread) ||
- pc_is_kernel_fn(pc, syscall_exit)) {
+ if (pc == (unsigned long)&ret_from_kernel_thread ||
+ pc == (unsigned long)&syscall_exit) {
info->prev_sp = info->prev_ip = 0;
return 1;
}
- if (pc_is_kernel_fn(pc, intr_return)) {
+ if (pc == (unsigned long)&intr_return) {
struct pt_regs *regs;
dbg("Found intr_return()\n");
@@ -257,14 +255,14 @@ static int unwind_special(struct unwind_frame_info *info, unsigned long pc, int
}
if (pc_is_kernel_fn(pc, _switch_to) ||
- pc_is_kernel_fn(pc, _switch_to_ret)) {
+ pc == (unsigned long)&_switch_to_ret) {
info->prev_sp = info->sp - CALLEE_SAVE_FRAME_SIZE;
info->prev_ip = *(unsigned long *)(info->prev_sp - RP_OFFSET);
return 1;
}
#ifdef CONFIG_IRQSTACKS
- if (pc_is_kernel_fn(pc, _call_on_stack)) {
+ if (pc == (unsigned long)&_call_on_stack) {
info->prev_sp = *(unsigned long *)(info->sp - FRAME_SIZE - REG_SZ);
info->prev_ip = *(unsigned long *)(info->sp - FRAME_SIZE - RP_OFFSET);
return 1;