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-rw-r--r--arch/sparc/kernel/entry.S8
-rw-r--r--arch/sparc/kernel/head_32.S2
-rw-r--r--arch/sparc/kernel/head_64.S2
-rw-r--r--arch/sparc/kernel/irq_64.c1
-rw-r--r--arch/sparc/kernel/led.c2
-rw-r--r--arch/sparc/kernel/pci.c3
-rw-r--r--arch/sparc/kernel/process_32.c16
-rw-r--r--arch/sparc/kernel/process_64.c2
-rw-r--r--arch/sparc/kernel/rtrap_32.S2
-rw-r--r--arch/sparc/kernel/setup_32.c3
-rw-r--r--arch/sparc/kernel/setup_64.c4
-rw-r--r--arch/sparc/kernel/signal_32.c4
-rw-r--r--arch/sparc/kernel/syscalls/Makefile19
-rw-r--r--arch/sparc/kernel/syscalls/syscall.tbl1
-rw-r--r--arch/sparc/kernel/traps_64.c13
-rw-r--r--arch/sparc/kernel/unaligned_32.c106
-rw-r--r--arch/sparc/kernel/viohs.c6
17 files changed, 40 insertions, 154 deletions
diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index d58940280f8d..a269ad2fe6df 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -994,7 +994,7 @@ do_syscall:
andcc %l5, _TIF_SYSCALL_TRACE, %g0
mov %i4, %o4
bne linux_syscall_trace
- mov %i0, %l5
+ mov %i0, %l6
2:
call %l7
mov %i5, %o5
@@ -1003,16 +1003,15 @@ do_syscall:
st %o0, [%sp + STACKFRAME_SZ + PT_I0]
ret_sys_call:
- ld [%curptr + TI_FLAGS], %l6
+ ld [%curptr + TI_FLAGS], %l5
cmp %o0, -ERESTART_RESTARTBLOCK
ld [%sp + STACKFRAME_SZ + PT_PSR], %g3
set PSR_C, %g2
bgeu 1f
- andcc %l6, _TIF_SYSCALL_TRACE, %g0
+ andcc %l5, _TIF_SYSCALL_TRACE, %g0
/* System call success, clear Carry condition code. */
andn %g3, %g2, %g3
- clr %l6
st %g3, [%sp + STACKFRAME_SZ + PT_PSR]
bne linux_syscall_trace2
ld [%sp + STACKFRAME_SZ + PT_NPC], %l1 /* pc = npc */
@@ -1027,7 +1026,6 @@ ret_sys_call:
sub %g0, %o0, %o0
or %g3, %g2, %g3
st %o0, [%sp + STACKFRAME_SZ + PT_I0]
- mov 1, %l6
st %g3, [%sp + STACKFRAME_SZ + PT_PSR]
bne linux_syscall_trace2
ld [%sp + STACKFRAME_SZ + PT_NPC], %l1 /* pc = npc */
diff --git a/arch/sparc/kernel/head_32.S b/arch/sparc/kernel/head_32.S
index be30c8d4cc73..6044b82b9767 100644
--- a/arch/sparc/kernel/head_32.S
+++ b/arch/sparc/kernel/head_32.S
@@ -515,7 +515,7 @@ continue_boot:
/* I want a kernel stack NOW! */
set init_thread_union, %g1
- set (THREAD_SIZE - STACKFRAME_SZ), %g2
+ set (THREAD_SIZE - STACKFRAME_SZ - TRACEREG_SZ), %g2
add %g1, %g2, %sp
mov 0, %fp /* And for good luck */
diff --git a/arch/sparc/kernel/head_64.S b/arch/sparc/kernel/head_64.S
index c5ff2472b3d9..72a5bdc833ea 100644
--- a/arch/sparc/kernel/head_64.S
+++ b/arch/sparc/kernel/head_64.S
@@ -706,7 +706,7 @@ tlb_fixup_done:
wr %g0, ASI_P, %asi
mov 1, %g1
sllx %g1, THREAD_SHIFT, %g1
- sub %g1, (STACKFRAME_SZ + STACK_BIAS), %g1
+ sub %g1, (STACKFRAME_SZ + STACK_BIAS + TRACEREG_SZ), %g1
add %g6, %g1, %sp
/* Set per-cpu pointer initially to zero, this makes
diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index 3ec9f1402aad..c8848bb681a1 100644
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -42,6 +42,7 @@
#include <asm/head.h>
#include <asm/hypervisor.h>
#include <asm/cacheflush.h>
+#include <asm/softirq_stack.h>
#include "entry.h"
#include "cpumap.h"
diff --git a/arch/sparc/kernel/led.c b/arch/sparc/kernel/led.c
index bd48575172c3..3a66e62eb2a0 100644
--- a/arch/sparc/kernel/led.c
+++ b/arch/sparc/kernel/led.c
@@ -50,6 +50,7 @@ static void led_blink(struct timer_list *unused)
add_timer(&led_blink_timer);
}
+#ifdef CONFIG_PROC_FS
static int led_proc_show(struct seq_file *m, void *v)
{
if (get_auxio() & AUXIO_LED)
@@ -111,6 +112,7 @@ static const struct proc_ops led_proc_ops = {
.proc_release = single_release,
.proc_write = led_proc_write,
};
+#endif
static struct proc_dir_entry *led;
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index 5d45b6d766d6..9c2b720bfd20 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -552,9 +552,8 @@ static void pci_of_scan_bus(struct pci_pbm_info *pbm,
pci_info(bus, "scan_bus[%pOF] bus no %d\n",
node, bus->number);
- child = NULL;
prev_devfn = -1;
- while ((child = of_get_next_child(node, child)) != NULL) {
+ for_each_child_of_node(node, child) {
if (ofpci_verbose)
pci_info(bus, " * %pOF\n", child);
reg = of_get_property(child, "reg", &reglen);
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index a02363735915..3b9794978e5b 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -183,7 +183,7 @@ void exit_thread(struct task_struct *tsk)
#ifndef CONFIG_SMP
if (last_task_used_math == tsk) {
#else
- if (test_ti_thread_flag(task_thread_info(tsk), TIF_USEDFPU)) {
+ if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) {
#endif
/* Keep process from leaving FPU in a bogon state. */
put_psr(get_psr() | PSR_EF);
@@ -216,16 +216,6 @@ void flush_thread(void)
clear_thread_flag(TIF_USEDFPU);
#endif
}
-
- /* This task is no longer a kernel thread. */
- if (current->thread.flags & SPARC_FLAG_KTHREAD) {
- current->thread.flags &= ~SPARC_FLAG_KTHREAD;
-
- /* We must fixup kregs as well. */
- /* XXX This was not fixed for ti for a while, worked. Unused? */
- current->thread.kregs = (struct pt_regs *)
- (task_stack_page(current) + (THREAD_SIZE - TRACEREG_SZ));
- }
}
static inline struct sparc_stackf __user *
@@ -309,11 +299,10 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, unsigned long arg,
ti->ksp = (unsigned long) new_stack;
p->thread.kregs = childregs;
- if (unlikely(p->flags & PF_KTHREAD)) {
+ if (unlikely(p->flags & (PF_KTHREAD | PF_IO_WORKER))) {
extern int nwindows;
unsigned long psr;
memset(new_stack, 0, STACKFRAME_SZ + TRACEREG_SZ);
- p->thread.flags |= SPARC_FLAG_KTHREAD;
p->thread.current_ds = KERNEL_DS;
ti->kpc = (((unsigned long) ret_from_kernel_thread) - 0x8);
childregs->u_regs[UREG_G1] = sp; /* function */
@@ -325,7 +314,6 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, unsigned long arg,
}
memcpy(new_stack, (char *)regs - STACKFRAME_SZ, STACKFRAME_SZ + TRACEREG_SZ);
childregs->u_regs[UREG_FP] = sp;
- p->thread.flags &= ~SPARC_FLAG_KTHREAD;
p->thread.current_ds = USER_DS;
ti->kpc = (((unsigned long) ret_from_fork) - 0x8);
ti->kpsr = current->thread.fork_kpsr | PSR_PIL;
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index 6f8c7822fc06..7afd0a859a78 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -597,7 +597,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, unsigned long arg,
sizeof(struct sparc_stackf));
t->fpsaved[0] = 0;
- if (unlikely(p->flags & PF_KTHREAD)) {
+ if (unlikely(p->flags & (PF_KTHREAD | PF_IO_WORKER))) {
memset(child_trap_frame, 0, child_stack_sz);
__thread_flag_byte_ptr(t)[TI_FLAG_BYTE_CWP] =
(current_pt_regs()->tstate + 1) & TSTATE_CWP;
diff --git a/arch/sparc/kernel/rtrap_32.S b/arch/sparc/kernel/rtrap_32.S
index dca8ed810046..8931fe266346 100644
--- a/arch/sparc/kernel/rtrap_32.S
+++ b/arch/sparc/kernel/rtrap_32.S
@@ -75,7 +75,7 @@ signal_p:
ld [%sp + STACKFRAME_SZ + PT_PSR], %t_psr
mov %g2, %o2
- mov %l5, %o1
+ mov %l6, %o1
call do_notify_resume
add %sp, STACKFRAME_SZ, %o0 ! pt_regs ptr
diff --git a/arch/sparc/kernel/setup_32.c b/arch/sparc/kernel/setup_32.c
index eea43a1aef1b..c8e0dd99f370 100644
--- a/arch/sparc/kernel/setup_32.c
+++ b/arch/sparc/kernel/setup_32.c
@@ -266,7 +266,6 @@ static __init void leon_patch(void)
}
struct tt_entry *sparc_ttable;
-static struct pt_regs fake_swapper_regs;
/* Called from head_32.S - before we have setup anything
* in the kernel. Be very careful with what you do here.
@@ -363,8 +362,6 @@ void __init setup_arch(char **cmdline_p)
(*(linux_dbvec->teach_debugger))();
}
- init_task.thread.kregs = &fake_swapper_regs;
-
/* Run-time patch instructions to match the cpu model */
per_cpu_patch();
diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c
index d87244197d5c..48abee4eee29 100644
--- a/arch/sparc/kernel/setup_64.c
+++ b/arch/sparc/kernel/setup_64.c
@@ -165,8 +165,6 @@ extern int root_mountflags;
char reboot_command[COMMAND_LINE_SIZE];
-static struct pt_regs fake_swapper_regs = { { 0, }, 0, 0, 0, 0 };
-
static void __init per_cpu_patch(void)
{
struct cpuid_patch_entry *p;
@@ -661,8 +659,6 @@ void __init setup_arch(char **cmdline_p)
rd_image_start = ram_flags & RAMDISK_IMAGE_START_MASK;
#endif
- task_thread_info(&init_task)->kregs = &fake_swapper_regs;
-
#ifdef CONFIG_IP_PNP
if (!ic_set_manually) {
phandle chosen = prom_finddevice("/chosen");
diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c
index 11cf2281b581..02f3ad55dfe3 100644
--- a/arch/sparc/kernel/signal_32.c
+++ b/arch/sparc/kernel/signal_32.c
@@ -400,8 +400,8 @@ static int setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs,
else {
regs->u_regs[UREG_I7] = (unsigned long)(&(sf->insns[0]) - 2);
- /* mov __NR_sigreturn, %g1 */
- err |= __put_user(0x821020d8, &sf->insns[0]);
+ /* mov __NR_rt_sigreturn, %g1 */
+ err |= __put_user(0x82102065, &sf->insns[0]);
/* t 0x10 */
err |= __put_user(0x91d02010, &sf->insns[1]);
diff --git a/arch/sparc/kernel/syscalls/Makefile b/arch/sparc/kernel/syscalls/Makefile
index c22a21c39f30..283f64407b07 100644
--- a/arch/sparc/kernel/syscalls/Makefile
+++ b/arch/sparc/kernel/syscalls/Makefile
@@ -5,7 +5,7 @@ uapi := arch/$(SRCARCH)/include/generated/uapi/asm
_dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)') \
$(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
-syscall := $(srctree)/$(src)/syscall.tbl
+syscall := $(src)/syscall.tbl
syshdr := $(srctree)/$(src)/syscallhdr.sh
systbl := $(srctree)/$(src)/syscalltbl.sh
@@ -22,24 +22,24 @@ quiet_cmd_systbl = SYSTBL $@
'$(systbl_offset_$(basetarget))'
syshdr_abis_unistd_32 := common,32
-$(uapi)/unistd_32.h: $(syscall) $(syshdr)
+$(uapi)/unistd_32.h: $(syscall) $(syshdr) FORCE
$(call if_changed,syshdr)
syshdr_abis_unistd_64 := common,64
-$(uapi)/unistd_64.h: $(syscall) $(syshdr)
+$(uapi)/unistd_64.h: $(syscall) $(syshdr) FORCE
$(call if_changed,syshdr)
systbl_abis_syscall_table_32 := common,32
-$(kapi)/syscall_table_32.h: $(syscall) $(systbl)
+$(kapi)/syscall_table_32.h: $(syscall) $(systbl) FORCE
$(call if_changed,systbl)
systbl_abis_syscall_table_64 := common,64
-$(kapi)/syscall_table_64.h: $(syscall) $(systbl)
+$(kapi)/syscall_table_64.h: $(syscall) $(systbl) FORCE
$(call if_changed,systbl)
systbl_abis_syscall_table_c32 := common,32
systbl_abi_syscall_table_c32 := c32
-$(kapi)/syscall_table_c32.h: $(syscall) $(systbl)
+$(kapi)/syscall_table_c32.h: $(syscall) $(systbl) FORCE
$(call if_changed,systbl)
uapisyshdr-y += unistd_32.h unistd_64.h
@@ -47,9 +47,10 @@ kapisyshdr-y += syscall_table_32.h \
syscall_table_64.h \
syscall_table_c32.h
-targets += $(uapisyshdr-y) $(kapisyshdr-y)
+uapisyshdr-y := $(addprefix $(uapi)/, $(uapisyshdr-y))
+kapisyshdr-y := $(addprefix $(kapi)/, $(kapisyshdr-y))
+targets += $(addprefix ../../../../, $(uapisyshdr-y) $(kapisyshdr-y))
PHONY += all
-all: $(addprefix $(uapi)/,$(uapisyshdr-y))
-all: $(addprefix $(kapi)/,$(kapisyshdr-y))
+all: $(uapisyshdr-y) $(kapisyshdr-y)
@:
diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl
index 40d8c7cd8298..84403a99039c 100644
--- a/arch/sparc/kernel/syscalls/syscall.tbl
+++ b/arch/sparc/kernel/syscalls/syscall.tbl
@@ -487,3 +487,4 @@
439 common faccessat2 sys_faccessat2
440 common process_madvise sys_process_madvise
441 common epoll_pwait2 sys_epoll_pwait2 compat_sys_epoll_pwait2
+442 common mount_setattr sys_mount_setattr
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index d92e5eaa4c1d..a850dccd78ea 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -275,14 +275,13 @@ bool is_no_fault_exception(struct pt_regs *regs)
asi = (regs->tstate >> 24); /* saved %asi */
else
asi = (insn >> 5); /* immediate asi */
- if ((asi & 0xf2) == ASI_PNF) {
- if (insn & 0x1000000) { /* op3[5:4]=3 */
- handle_ldf_stq(insn, regs);
- return true;
- } else if (insn & 0x200000) { /* op3[2], stores */
+ if ((asi & 0xf6) == ASI_PNF) {
+ if (insn & 0x200000) /* op3[2], stores */
return false;
- }
- handle_ld_nf(insn, regs);
+ if (insn & 0x1000000) /* op3[5:4]=3 (fp) */
+ handle_ldf_stq(insn, regs);
+ else
+ handle_ld_nf(insn, regs);
return true;
}
}
diff --git a/arch/sparc/kernel/unaligned_32.c b/arch/sparc/kernel/unaligned_32.c
index 83db94c0b431..ef5c5207c9ff 100644
--- a/arch/sparc/kernel/unaligned_32.c
+++ b/arch/sparc/kernel/unaligned_32.c
@@ -16,6 +16,7 @@
#include <linux/uaccess.h>
#include <linux/smp.h>
#include <linux/perf_event.h>
+#include <linux/extable.h>
#include <asm/setup.h>
@@ -213,10 +214,10 @@ static inline int ok_for_kernel(unsigned int insn)
static void kernel_mna_trap_fault(struct pt_regs *regs, unsigned int insn)
{
- unsigned long g2 = regs->u_regs [UREG_G2];
- unsigned long fixup = search_extables_range(regs->pc, &g2);
+ const struct exception_table_entry *entry;
- if (!fixup) {
+ entry = search_exception_tables(regs->pc);
+ if (!entry) {
unsigned long address = compute_effective_address(regs, insn);
if(address < PAGE_SIZE) {
printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference in mna handler");
@@ -232,9 +233,8 @@ static void kernel_mna_trap_fault(struct pt_regs *regs, unsigned int insn)
die_if_kernel("Oops", regs);
/* Not reached */
}
- regs->pc = fixup;
+ regs->pc = entry->fixup;
regs->npc = regs->pc + 4;
- regs->u_regs [UREG_G2] = g2;
}
asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn)
@@ -274,103 +274,9 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn)
}
}
-static inline int ok_for_user(struct pt_regs *regs, unsigned int insn,
- enum direction dir)
-{
- unsigned int reg;
- int size = ((insn >> 19) & 3) == 3 ? 8 : 4;
-
- if ((regs->pc | regs->npc) & 3)
- return 0;
-
- /* Must access_ok() in all the necessary places. */
-#define WINREG_ADDR(regnum) \
- ((void __user *)(((unsigned long *)regs->u_regs[UREG_FP])+(regnum)))
-
- reg = (insn >> 25) & 0x1f;
- if (reg >= 16) {
- if (!access_ok(WINREG_ADDR(reg - 16), size))
- return -EFAULT;
- }
- reg = (insn >> 14) & 0x1f;
- if (reg >= 16) {
- if (!access_ok(WINREG_ADDR(reg - 16), size))
- return -EFAULT;
- }
- if (!(insn & 0x2000)) {
- reg = (insn & 0x1f);
- if (reg >= 16) {
- if (!access_ok(WINREG_ADDR(reg - 16), size))
- return -EFAULT;
- }
- }
-#undef WINREG_ADDR
- return 0;
-}
-
-static void user_mna_trap_fault(struct pt_regs *regs, unsigned int insn)
+asmlinkage void user_unaligned_trap(struct pt_regs *regs, unsigned int insn)
{
send_sig_fault(SIGBUS, BUS_ADRALN,
(void __user *)safe_compute_effective_address(regs, insn),
0, current);
}
-
-asmlinkage void user_unaligned_trap(struct pt_regs *regs, unsigned int insn)
-{
- enum direction dir;
-
- if(!(current->thread.flags & SPARC_FLAG_UNALIGNED) ||
- (((insn >> 30) & 3) != 3))
- goto kill_user;
- dir = decode_direction(insn);
- if(!ok_for_user(regs, insn, dir)) {
- goto kill_user;
- } else {
- int err, size = decode_access_size(insn);
- unsigned long addr;
-
- if(floating_point_load_or_store_p(insn)) {
- printk("User FPU load/store unaligned unsupported.\n");
- goto kill_user;
- }
-
- addr = compute_effective_address(regs, insn);
- perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, regs, addr);
- switch(dir) {
- case load:
- err = do_int_load(fetch_reg_addr(((insn>>25)&0x1f),
- regs),
- size, (unsigned long *) addr,
- decode_signedness(insn));
- break;
-
- case store:
- err = do_int_store(((insn>>25)&0x1f), size,
- (unsigned long *) addr, regs);
- break;
-
- case both:
- /*
- * This was supported in 2.4. However, we question
- * the value of SWAP instruction across word boundaries.
- */
- printk("Unaligned SWAP unsupported.\n");
- err = -EFAULT;
- break;
-
- default:
- unaligned_panic("Impossible user unaligned trap.");
- goto out;
- }
- if (err)
- goto kill_user;
- else
- advance(regs);
- goto out;
- }
-
-kill_user:
- user_mna_trap_fault(regs, insn);
-out:
- ;
-}
diff --git a/arch/sparc/kernel/viohs.c b/arch/sparc/kernel/viohs.c
index 7db5aabe9708..e27afd233bf5 100644
--- a/arch/sparc/kernel/viohs.c
+++ b/arch/sparc/kernel/viohs.c
@@ -428,7 +428,7 @@ static int process_dreg_info(struct vio_driver_state *vio,
struct vio_dring_register *pkt)
{
struct vio_dring_state *dr;
- int i, len;
+ int i;
viodbg(HS, "GOT DRING_REG INFO ident[%llx] "
"ndesc[%u] dsz[%u] opt[0x%x] ncookies[%u]\n",
@@ -482,9 +482,7 @@ static int process_dreg_info(struct vio_driver_state *vio,
pkt->num_descr, pkt->descr_size, pkt->options,
pkt->num_cookies);
- len = (sizeof(*pkt) +
- (dr->ncookies * sizeof(struct ldc_trans_cookie)));
- if (send_ctrl(vio, &pkt->tag, len) < 0)
+ if (send_ctrl(vio, &pkt->tag, struct_size(pkt, cookies, dr->ncookies)) < 0)
goto send_nack;
vio->dr_state |= VIO_DR_STATE_RXREG;
generated by cgit (git 2.34.1) at 2025-05-30 18:38:49 +0000