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-rw-r--r--arch/mips/kernel/cpu-probe.c4
-rw-r--r--arch/mips/kernel/irixsig.c4
-rw-r--r--arch/mips/kernel/scall32-o32.S18
-rw-r--r--arch/mips/kernel/scall64-64.S18
-rw-r--r--arch/mips/kernel/scall64-n32.S4
-rw-r--r--arch/mips/kernel/scall64-o32.S4
-rw-r--r--arch/mips/kernel/signal.c2
-rw-r--r--arch/mips/kernel/signal32.c2
-rw-r--r--arch/mips/kernel/traps.c5
9 files changed, 19 insertions, 42 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index a263fb7a397..5e1b08b00a3 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -417,7 +417,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
case PRID_IMP_R10000:
c->cputype = CPU_R10000;
c->isa_level = MIPS_CPU_ISA_IV;
- c->options = MIPS_CPU_TLB | MIPS_CPU_4KEX |
+ c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX |
MIPS_CPU_FPU | MIPS_CPU_32FPR |
MIPS_CPU_COUNTER | MIPS_CPU_WATCH |
MIPS_CPU_LLSC;
@@ -426,7 +426,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
case PRID_IMP_R12000:
c->cputype = CPU_R12000;
c->isa_level = MIPS_CPU_ISA_IV;
- c->options = MIPS_CPU_TLB | MIPS_CPU_4KEX |
+ c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX |
MIPS_CPU_FPU | MIPS_CPU_32FPR |
MIPS_CPU_COUNTER | MIPS_CPU_WATCH |
MIPS_CPU_LLSC;
diff --git a/arch/mips/kernel/irixsig.c b/arch/mips/kernel/irixsig.c
index dd118c60bcd..08273a2a501 100644
--- a/arch/mips/kernel/irixsig.c
+++ b/arch/mips/kernel/irixsig.c
@@ -279,8 +279,6 @@ irix_sigreturn(struct pt_regs *regs)
/*
* Don't let your children do this ...
*/
- if (current_thread_info()->flags & TIF_SYSCALL_TRACE)
- do_syscall_trace(regs, 1);
__asm__ __volatile__(
"move\t$29,%0\n\t"
"j\tsyscall_exit"
@@ -783,8 +781,6 @@ asmlinkage void irix_setcontext(struct pt_regs *regs)
/*
* Don't let your children do this ...
*/
- if (current_thread_info()->flags & TIF_SYSCALL_TRACE)
- do_syscall_trace(regs, 1);
__asm__ __volatile__(
"move\t$29,%0\n\t"
"j\tsyscall_exit"
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 4dd8e8b4fbc..a42e0e8caa7 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -94,11 +94,13 @@ syscall_trace_entry:
li a1, 0
jal do_syscall_trace
+ move t0, s0
+ RESTORE_STATIC
lw a0, PT_R4(sp) # Restore argument registers
lw a1, PT_R5(sp)
lw a2, PT_R6(sp)
lw a3, PT_R7(sp)
- jalr s0
+ jalr t0
li t0, -EMAXERRNO - 1 # error?
sltu t0, t0, v0
@@ -241,19 +243,7 @@ illegal_syscall:
sw zero, PT_R7(sp) # success
sw v0, PT_R2(sp) # result
- /* Success, so skip usual error handling garbage. */
- lw a2, TI_FLAGS($28) # syscall tracing enabled?
- li t0, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
- and t0, a2, t0
- bnez t0, 1f
-
- j o32_syscall_exit
-
-1: SAVE_STATIC
- move a0, sp
- li a1, 1
- jal do_syscall_trace
- j syscall_exit
+ j o32_syscall_exit # continue like a normal syscall
no_mem: li v0, -ENOMEM
jr ra
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index 9085838d6ce..47bfbd41670 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -93,13 +93,15 @@ syscall_trace_entry:
li a1, 0
jal do_syscall_trace
+ move t0, s0
+ RESTORE_STATIC
ld a0, PT_R4(sp) # Restore argument registers
ld a1, PT_R5(sp)
ld a2, PT_R6(sp)
ld a3, PT_R7(sp)
ld a4, PT_R8(sp)
ld a5, PT_R9(sp)
- jalr s0
+ jalr t0
li t0, -EMAXERRNO - 1 # error?
sltu t0, t0, v0
@@ -174,19 +176,7 @@ illegal_syscall:
sd zero, PT_R7(sp) # success
sd v0, PT_R2(sp) # result
- /* Success, so skip usual error handling garbage. */
- li t0, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
- LONG_L a2, TI_FLAGS($28) # syscall tracing enabled?
- and t0, a2, t0
- bnez t0, 1f
-
- j n64_syscall_exit
-
-1: SAVE_STATIC
- move a0, sp
- li a1, 1
- jal do_syscall_trace
- j syscall_exit
+ j n64_syscall_exit # continue like a normal syscall
no_mem: li v0, -ENOMEM
jr ra
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 7e66eb823bf..b465ced1758 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -90,13 +90,15 @@ n32_syscall_trace_entry:
li a1, 0
jal do_syscall_trace
+ move t0, s0
+ RESTORE_STATIC
ld a0, PT_R4(sp) # Restore argument registers
ld a1, PT_R5(sp)
ld a2, PT_R6(sp)
ld a3, PT_R7(sp)
ld a4, PT_R8(sp)
ld a5, PT_R9(sp)
- jalr s0
+ jalr t0
li t0, -EMAXERRNO - 1 # error?
sltu t0, t0, v0
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 5a16401e443..3d338ca7eee 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -124,6 +124,8 @@ trace_a_syscall:
li a1, 0
jal do_syscall_trace
+ move t0, s0
+ RESTORE_STATIC
ld a0, PT_R4(sp) # Restore argument registers
ld a1, PT_R5(sp)
ld a2, PT_R6(sp)
@@ -132,7 +134,7 @@ trace_a_syscall:
ld a5, PT_R9(sp)
ld a6, PT_R10(sp)
ld a7, PT_R11(sp) # For indirect syscalls
- jalr s0
+ jalr t0
li t0, -EMAXERRNO - 1 # error?
sltu t0, t0, v0
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index 05e09eedabf..7d1800fe703 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -220,8 +220,6 @@ _sys_sigreturn(nabi_no_regargs struct pt_regs regs)
/*
* Don't let your children do this ...
*/
- if (current_thread_info()->flags & TIF_SYSCALL_TRACE)
- do_syscall_trace(&regs, 1);
__asm__ __volatile__(
"move\t$29, %0\n\t"
"j\tsyscall_exit"
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index e315d3f6aa6..c856dbc52ab 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -497,8 +497,6 @@ _sys32_sigreturn(nabi_no_regargs struct pt_regs regs)
/*
* Don't let your children do this ...
*/
- if (current_thread_info()->flags & TIF_SYSCALL_TRACE)
- do_syscall_trace(&regs, 1);
__asm__ __volatile__(
"move\t$29, %0\n\t"
"j\tsyscall_exit"
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 6f3ff969068..7058893d5ad 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -534,13 +534,14 @@ static inline int simulate_rdhwr(struct pt_regs *regs)
switch (rd) {
case 29:
regs->regs[rt] = ti->tp_value;
- break;
+ return 0;
default:
return -EFAULT;
}
}
- return 0;
+ /* Not ours. */
+ return -EFAULT;
}
asmlinkage void do_ov(struct pt_regs *regs)
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-27 23:29:59 +0000