summaryrefslogtreecommitdiff
path: root/arch/ia64
diff options
context:
space:
mode:
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/Kconfig1
-rw-r--r--arch/ia64/include/asm/atomic.h1
-rw-r--r--arch/ia64/include/asm/sections.h2
-rw-r--r--arch/ia64/kernel/entry.S32
-rw-r--r--arch/ia64/kernel/ftrace.c6
-rw-r--r--arch/ia64/kernel/process.c31
-rw-r--r--arch/ia64/kernel/syscalls/syscall.tbl1
-rw-r--r--arch/ia64/kernel/unwind_i.h2
-rw-r--r--arch/ia64/mm/discontig.c2
-rw-r--r--arch/ia64/mm/tlb.c2
10 files changed, 46 insertions, 34 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 1fa2fe2ef053..5b4ec80bf586 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -192,6 +192,7 @@ config IA64_SGI_UV
config IA64_HP_SBA_IOMMU
bool "HP SBA IOMMU support"
+ select DMA_OPS
default y
help
Say Y here to add support for the SBA IOMMU found on HP zx1 and
diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
index 50440f3ddc43..f267d956458f 100644
--- a/arch/ia64/include/asm/atomic.h
+++ b/arch/ia64/include/asm/atomic.h
@@ -19,7 +19,6 @@
#include <asm/barrier.h>
-#define ATOMIC_INIT(i) { (i) }
#define ATOMIC64_INIT(i) { (i) }
#define atomic_read(v) READ_ONCE((v)->counter)
diff --git a/arch/ia64/include/asm/sections.h b/arch/ia64/include/asm/sections.h
index cea15f2dd38d..3a033d2008b3 100644
--- a/arch/ia64/include/asm/sections.h
+++ b/arch/ia64/include/asm/sections.h
@@ -35,7 +35,7 @@ static inline void *dereference_function_descriptor(void *ptr)
struct fdesc *desc = ptr;
void *p;
- if (!probe_kernel_address(&desc->ip, p))
+ if (!get_kernel_nofault(p, (void *)&desc->ip))
ptr = p;
return ptr;
}
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index c5efac285bc3..e98e3dafffd8 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -112,19 +112,16 @@ GLOBAL_ENTRY(sys_clone2)
.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8)
alloc r16=ar.pfs,8,2,6,0
DO_SAVE_SWITCH_STACK
- adds r2=PT(R16)+IA64_SWITCH_STACK_SIZE+16,sp
mov loc0=rp
- mov loc1=r16 // save ar.pfs across do_fork
+ mov loc1=r16 // save ar.pfs across ia64_clone
.body
+ mov out0=in0
mov out1=in1
mov out2=in2
- tbit.nz p6,p0=in0,CLONE_SETTLS_BIT
- mov out3=in3 // parent_tidptr: valid only w/CLONE_PARENT_SETTID
- ;;
-(p6) st8 [r2]=in5 // store TLS in r16 for copy_thread()
- mov out4=in4 // child_tidptr: valid only w/CLONE_CHILD_SETTID or CLONE_CHILD_CLEARTID
- mov out0=in0 // out0 = clone_flags
- br.call.sptk.many rp=do_fork
+ mov out3=in3
+ mov out4=in4
+ mov out5=in5
+ br.call.sptk.many rp=ia64_clone
.ret1: .restore sp
adds sp=IA64_SWITCH_STACK_SIZE,sp // pop the switch stack
mov ar.pfs=loc1
@@ -143,19 +140,16 @@ GLOBAL_ENTRY(sys_clone)
.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8)
alloc r16=ar.pfs,8,2,6,0
DO_SAVE_SWITCH_STACK
- adds r2=PT(R16)+IA64_SWITCH_STACK_SIZE+16,sp
mov loc0=rp
- mov loc1=r16 // save ar.pfs across do_fork
+ mov loc1=r16 // save ar.pfs across ia64_clone
.body
+ mov out0=in0
mov out1=in1
mov out2=16 // stacksize (compensates for 16-byte scratch area)
- tbit.nz p6,p0=in0,CLONE_SETTLS_BIT
- mov out3=in2 // parent_tidptr: valid only w/CLONE_PARENT_SETTID
- ;;
-(p6) st8 [r2]=in4 // store TLS in r13 (tp)
- mov out4=in3 // child_tidptr: valid only w/CLONE_CHILD_SETTID or CLONE_CHILD_CLEARTID
- mov out0=in0 // out0 = clone_flags
- br.call.sptk.many rp=do_fork
+ mov out3=in3
+ mov out4=in4
+ mov out5=in5
+ br.call.sptk.many rp=ia64_clone
.ret2: .restore sp
adds sp=IA64_SWITCH_STACK_SIZE,sp // pop the switch stack
mov ar.pfs=loc1
@@ -590,7 +584,7 @@ GLOBAL_ENTRY(ia64_ret_from_clone)
nop.i 0
/*
* We need to call schedule_tail() to complete the scheduling process.
- * Called by ia64_switch_to() after do_fork()->copy_thread(). r8 contains the
+ * Called by ia64_switch_to() after ia64_clone()->copy_thread(). r8 contains the
* address of the previously executing task.
*/
br.call.sptk.many rp=ia64_invoke_schedule_tail
diff --git a/arch/ia64/kernel/ftrace.c b/arch/ia64/kernel/ftrace.c
index cee411e647ca..b2ab2d58fb30 100644
--- a/arch/ia64/kernel/ftrace.c
+++ b/arch/ia64/kernel/ftrace.c
@@ -108,7 +108,7 @@ ftrace_modify_code(unsigned long ip, unsigned char *old_code,
goto skip_check;
/* read the text we want to modify */
- if (probe_kernel_read(replaced, (void *)ip, MCOUNT_INSN_SIZE))
+ if (copy_from_kernel_nofault(replaced, (void *)ip, MCOUNT_INSN_SIZE))
return -EFAULT;
/* Make sure it is what we expect it to be */
@@ -117,7 +117,7 @@ ftrace_modify_code(unsigned long ip, unsigned char *old_code,
skip_check:
/* replace the text with the new text */
- if (probe_kernel_write(((void *)ip), new_code, MCOUNT_INSN_SIZE))
+ if (copy_to_kernel_nofault(((void *)ip), new_code, MCOUNT_INSN_SIZE))
return -EPERM;
flush_icache_range(ip, ip + MCOUNT_INSN_SIZE);
@@ -129,7 +129,7 @@ static int ftrace_make_nop_check(struct dyn_ftrace *rec, unsigned long addr)
unsigned char __attribute__((aligned(8))) replaced[MCOUNT_INSN_SIZE];
unsigned long ip = rec->ip;
- if (probe_kernel_read(replaced, (void *)ip, MCOUNT_INSN_SIZE))
+ if (copy_from_kernel_nofault(replaced, (void *)ip, MCOUNT_INSN_SIZE))
return -EFAULT;
if (rec->flags & FTRACE_FL_CONVERTED) {
struct ftrace_call_insn *call_insn, *tmp_call;
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index 96dfb9e4b16f..7a4de9d994c5 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -296,7 +296,7 @@ ia64_load_extra (struct task_struct *task)
pfm_load_regs(task);
info = __this_cpu_read(pfm_syst_info);
- if (info & PFM_CPUINFO_SYST_WIDE)
+ if (info & PFM_CPUINFO_SYST_WIDE)
pfm_syst_wide_update_task(task, info, 1);
#endif
}
@@ -310,7 +310,7 @@ ia64_load_extra (struct task_struct *task)
*
* <clone syscall> <some kernel call frames>
* sys_clone :
- * do_fork do_fork
+ * _do_fork _do_fork
* copy_thread copy_thread
*
* This means that the stack layout is as follows:
@@ -333,9 +333,8 @@ ia64_load_extra (struct task_struct *task)
* so there is nothing to worry about.
*/
int
-copy_thread(unsigned long clone_flags,
- unsigned long user_stack_base, unsigned long user_stack_size,
- struct task_struct *p)
+copy_thread(unsigned long clone_flags, unsigned long user_stack_base,
+ unsigned long user_stack_size, struct task_struct *p, unsigned long tls)
{
extern char ia64_ret_from_clone;
struct switch_stack *child_stack, *stack;
@@ -416,7 +415,7 @@ copy_thread(unsigned long clone_flags,
rbs_size = stack->ar_bspstore - rbs;
memcpy((void *) child_rbs, (void *) rbs, rbs_size);
if (clone_flags & CLONE_SETTLS)
- child_ptregs->r13 = regs->r16; /* see sys_clone2() in entry.S */
+ child_ptregs->r13 = tls;
if (user_stack_base) {
child_ptregs->r12 = user_stack_base + user_stack_size - 16;
child_ptregs->ar_bspstore = user_stack_base;
@@ -441,11 +440,29 @@ copy_thread(unsigned long clone_flags,
return retval;
}
+asmlinkage long ia64_clone(unsigned long clone_flags, unsigned long stack_start,
+ unsigned long stack_size, unsigned long parent_tidptr,
+ unsigned long child_tidptr, unsigned long tls)
+{
+ struct kernel_clone_args args = {
+ .flags = (lower_32_bits(clone_flags) & ~CSIGNAL),
+ .pidfd = (int __user *)parent_tidptr,
+ .child_tid = (int __user *)child_tidptr,
+ .parent_tid = (int __user *)parent_tidptr,
+ .exit_signal = (lower_32_bits(clone_flags) & CSIGNAL),
+ .stack = stack_start,
+ .stack_size = stack_size,
+ .tls = tls,
+ };
+
+ return _do_fork(&args);
+}
+
static void
do_copy_task_regs (struct task_struct *task, struct unw_frame_info *info, void *arg)
{
unsigned long mask, sp, nat_bits = 0, ar_rnat, urbs_end, cfm;
- unsigned long uninitialized_var(ip); /* GCC be quiet */
+ unsigned long ip;
elf_greg_t *dst = arg;
struct pt_regs *pt;
char nat;
diff --git a/arch/ia64/kernel/syscalls/syscall.tbl b/arch/ia64/kernel/syscalls/syscall.tbl
index 49e325b604b3..ced9c83e47c9 100644
--- a/arch/ia64/kernel/syscalls/syscall.tbl
+++ b/arch/ia64/kernel/syscalls/syscall.tbl
@@ -356,6 +356,7 @@
433 common fspick sys_fspick
434 common pidfd_open sys_pidfd_open
# 435 reserved for clone3
+436 common close_range sys_close_range
437 common openat2 sys_openat2
438 common pidfd_getfd sys_pidfd_getfd
439 common faccessat2 sys_faccessat2
diff --git a/arch/ia64/kernel/unwind_i.h b/arch/ia64/kernel/unwind_i.h
index 67994a7e5816..1dd57ba44327 100644
--- a/arch/ia64/kernel/unwind_i.h
+++ b/arch/ia64/kernel/unwind_i.h
@@ -42,7 +42,7 @@ enum unw_register_index {
struct unw_info_block {
u64 header;
- u64 desc[0]; /* unwind descriptors */
+ u64 desc[]; /* unwind descriptors */
/* personality routine and language-specific data follow behind descriptors */
};
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index dd8284bcbf16..da810ca234da 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -180,7 +180,7 @@ static void *per_cpu_node_setup(void *cpu_data, int node)
void __init setup_per_cpu_areas(void)
{
struct pcpu_alloc_info *ai;
- struct pcpu_group_info *uninitialized_var(gi);
+ struct pcpu_group_info *gi;
unsigned int *cpu_map;
void *base;
unsigned long base_offset;
diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c
index 72cc568bc841..71c19918e387 100644
--- a/arch/ia64/mm/tlb.c
+++ b/arch/ia64/mm/tlb.c
@@ -369,7 +369,7 @@ EXPORT_SYMBOL(flush_tlb_range);
void ia64_tlb_init(void)
{
- ia64_ptce_info_t uninitialized_var(ptce_info); /* GCC be quiet */
+ ia64_ptce_info_t ptce_info;
u64 tr_pgbits;
long status;
pal_vm_info_1_u_t vm_info_1;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-30 09:21:37 +0000