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-rw-r--r--arch/mips/kernel/Makefile5
-rw-r--r--arch/mips/kernel/asm-offsets.c31
-rw-r--r--arch/mips/kernel/branch.c33
-rw-r--r--arch/mips/kernel/cevt-r4k.c2
-rw-r--r--arch/mips/kernel/cpu-probe.c31
-rw-r--r--arch/mips/kernel/csrc-r4k.c2
-rw-r--r--arch/mips/kernel/genex.S10
-rw-r--r--arch/mips/kernel/irq-gic.c2
-rw-r--r--arch/mips/kernel/linux32.c69
-rw-r--r--arch/mips/kernel/mips-mt-fpaff.c3
-rw-r--r--arch/mips/kernel/octeon_switch.S506
-rw-r--r--arch/mips/kernel/ptrace32.c64
-rw-r--r--arch/mips/kernel/scall32-o32.S6
-rw-r--r--arch/mips/kernel/scall64-64.S2
-rw-r--r--arch/mips/kernel/scall64-n32.S28
-rw-r--r--arch/mips/kernel/scall64-o32.S40
-rw-r--r--arch/mips/kernel/signal.c5
-rw-r--r--arch/mips/kernel/signal32.c28
-rw-r--r--arch/mips/kernel/smtc.c6
-rw-r--r--arch/mips/kernel/syscall.c26
-rw-r--r--arch/mips/kernel/traps.c37
21 files changed, 762 insertions, 174 deletions
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index b1372c27f13..e9612215992 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -9,7 +9,7 @@ obj-y += cpu-probe.o branch.o entry.o genex.o irq.o process.o \
time.o topology.o traps.o unaligned.o watch.o
obj-$(CONFIG_CEVT_BCM1480) += cevt-bcm1480.o
-obj-$(CONFIG_CEVT_R4K) += cevt-r4k.o
+obj-$(CONFIG_CEVT_R4K_LIB) += cevt-r4k.o
obj-$(CONFIG_MIPS_MT_SMTC) += cevt-smtc.o
obj-$(CONFIG_CEVT_DS1287) += cevt-ds1287.o
obj-$(CONFIG_CEVT_GT641XX) += cevt-gt641xx.o
@@ -17,7 +17,7 @@ obj-$(CONFIG_CEVT_SB1250) += cevt-sb1250.o
obj-$(CONFIG_CEVT_TXX9) += cevt-txx9.o
obj-$(CONFIG_CSRC_BCM1480) += csrc-bcm1480.o
obj-$(CONFIG_CSRC_IOASIC) += csrc-ioasic.o
-obj-$(CONFIG_CSRC_R4K) += csrc-r4k.o
+obj-$(CONFIG_CSRC_R4K_LIB) += csrc-r4k.o
obj-$(CONFIG_CSRC_SB1250) += csrc-sb1250.o
obj-$(CONFIG_SYNC_R4K) += sync-r4k.o
@@ -43,6 +43,7 @@ obj-$(CONFIG_CPU_SB1) += r4k_fpu.o r4k_switch.o
obj-$(CONFIG_CPU_TX39XX) += r2300_fpu.o r2300_switch.o
obj-$(CONFIG_CPU_TX49XX) += r4k_fpu.o r4k_switch.o
obj-$(CONFIG_CPU_VR41XX) += r4k_fpu.o r4k_switch.o
+obj-$(CONFIG_CPU_CAVIUM_OCTEON) += octeon_switch.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_SMP_UP) += smp-up.o
diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c
index 72942226fcd..c901c22d7ad 100644
--- a/arch/mips/kernel/asm-offsets.c
+++ b/arch/mips/kernel/asm-offsets.c
@@ -64,6 +64,10 @@ void output_ptreg_defines(void)
#ifdef CONFIG_MIPS_MT_SMTC
OFFSET(PT_TCSTATUS, pt_regs, cp0_tcstatus);
#endif /* CONFIG_MIPS_MT_SMTC */
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+ OFFSET(PT_MPL, pt_regs, mpl);
+ OFFSET(PT_MTP, pt_regs, mtp);
+#endif /* CONFIG_CPU_CAVIUM_OCTEON */
DEFINE(PT_SIZE, sizeof(struct pt_regs));
BLANK();
}
@@ -295,3 +299,30 @@ void output_irq_cpustat_t_defines(void)
DEFINE(IC_IRQ_CPUSTAT_T, sizeof(irq_cpustat_t));
BLANK();
}
+
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+void output_octeon_cop2_state_defines(void)
+{
+ COMMENT("Octeon specific octeon_cop2_state offsets.");
+ OFFSET(OCTEON_CP2_CRC_IV, octeon_cop2_state, cop2_crc_iv);
+ OFFSET(OCTEON_CP2_CRC_LENGTH, octeon_cop2_state, cop2_crc_length);
+ OFFSET(OCTEON_CP2_CRC_POLY, octeon_cop2_state, cop2_crc_poly);
+ OFFSET(OCTEON_CP2_LLM_DAT, octeon_cop2_state, cop2_llm_dat);
+ OFFSET(OCTEON_CP2_3DES_IV, octeon_cop2_state, cop2_3des_iv);
+ OFFSET(OCTEON_CP2_3DES_KEY, octeon_cop2_state, cop2_3des_key);
+ OFFSET(OCTEON_CP2_3DES_RESULT, octeon_cop2_state, cop2_3des_result);
+ OFFSET(OCTEON_CP2_AES_INP0, octeon_cop2_state, cop2_aes_inp0);
+ OFFSET(OCTEON_CP2_AES_IV, octeon_cop2_state, cop2_aes_iv);
+ OFFSET(OCTEON_CP2_AES_KEY, octeon_cop2_state, cop2_aes_key);
+ OFFSET(OCTEON_CP2_AES_KEYLEN, octeon_cop2_state, cop2_aes_keylen);
+ OFFSET(OCTEON_CP2_AES_RESULT, octeon_cop2_state, cop2_aes_result);
+ OFFSET(OCTEON_CP2_GFM_MULT, octeon_cop2_state, cop2_gfm_mult);
+ OFFSET(OCTEON_CP2_GFM_POLY, octeon_cop2_state, cop2_gfm_poly);
+ OFFSET(OCTEON_CP2_GFM_RESULT, octeon_cop2_state, cop2_gfm_result);
+ OFFSET(OCTEON_CP2_HSH_DATW, octeon_cop2_state, cop2_hsh_datw);
+ OFFSET(OCTEON_CP2_HSH_IVW, octeon_cop2_state, cop2_hsh_ivw);
+ OFFSET(THREAD_CP2, task_struct, thread.cp2);
+ OFFSET(THREAD_CVMSEG, task_struct, thread.cvmseg.cvmseg);
+ BLANK();
+}
+#endif
diff --git a/arch/mips/kernel/branch.c b/arch/mips/kernel/branch.c
index 6b5df8bfab8..0176ed015c8 100644
--- a/arch/mips/kernel/branch.c
+++ b/arch/mips/kernel/branch.c
@@ -205,6 +205,39 @@ int __compute_return_epc(struct pt_regs *regs)
break;
}
break;
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+ case lwc2_op: /* This is bbit0 on Octeon */
+ if ((regs->regs[insn.i_format.rs] & (1ull<<insn.i_format.rt))
+ == 0)
+ epc = epc + 4 + (insn.i_format.simmediate << 2);
+ else
+ epc += 8;
+ regs->cp0_epc = epc;
+ break;
+ case ldc2_op: /* This is bbit032 on Octeon */
+ if ((regs->regs[insn.i_format.rs] &
+ (1ull<<(insn.i_format.rt+32))) == 0)
+ epc = epc + 4 + (insn.i_format.simmediate << 2);
+ else
+ epc += 8;
+ regs->cp0_epc = epc;
+ break;
+ case swc2_op: /* This is bbit1 on Octeon */
+ if (regs->regs[insn.i_format.rs] & (1ull<<insn.i_format.rt))
+ epc = epc + 4 + (insn.i_format.simmediate << 2);
+ else
+ epc += 8;
+ regs->cp0_epc = epc;
+ break;
+ case sdc2_op: /* This is bbit132 on Octeon */
+ if (regs->regs[insn.i_format.rs] &
+ (1ull<<(insn.i_format.rt+32)))
+ epc = epc + 4 + (insn.i_format.simmediate << 2);
+ else
+ epc += 8;
+ regs->cp0_epc = epc;
+ break;
+#endif
}
return 0;
diff --git a/arch/mips/kernel/cevt-r4k.c b/arch/mips/kernel/cevt-r4k.c
index e1ec83b6803..0015e442572 100644
--- a/arch/mips/kernel/cevt-r4k.c
+++ b/arch/mips/kernel/cevt-r4k.c
@@ -160,7 +160,7 @@ int c0_compare_int_usable(void)
#ifndef CONFIG_MIPS_MT_SMTC
-int __cpuinit mips_clockevent_init(void)
+int __cpuinit r4k_clockevent_init(void)
{
uint64_t mips_freq = mips_hpt_frequency;
unsigned int cpu = smp_processor_id();
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index c9207b5fd92..a7162a4484c 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -96,6 +96,9 @@ int allow_au1k_wait;
static void au1k_wait(void)
{
+ if (!allow_au1k_wait)
+ return;
+
/* using the wait instruction makes CP0 counter unusable */
__asm__(" .set mips3 \n"
" cache 0x14, 0(%0) \n"
@@ -154,6 +157,7 @@ void __init check_wait(void)
case CPU_25KF:
case CPU_PR4450:
case CPU_BCM3302:
+ case CPU_CAVIUM_OCTEON:
cpu_wait = r4k_wait;
break;
@@ -185,8 +189,7 @@ void __init check_wait(void)
case CPU_AU1200:
case CPU_AU1210:
case CPU_AU1250:
- if (allow_au1k_wait)
- cpu_wait = au1k_wait;
+ cpu_wait = au1k_wait;
break;
case CPU_20KC:
/*
@@ -875,6 +878,27 @@ static inline void cpu_probe_broadcom(struct cpuinfo_mips *c, unsigned int cpu)
}
}
+static inline void cpu_probe_cavium(struct cpuinfo_mips *c, unsigned int cpu)
+{
+ decode_configs(c);
+ switch (c->processor_id & 0xff00) {
+ case PRID_IMP_CAVIUM_CN38XX:
+ case PRID_IMP_CAVIUM_CN31XX:
+ case PRID_IMP_CAVIUM_CN30XX:
+ case PRID_IMP_CAVIUM_CN58XX:
+ case PRID_IMP_CAVIUM_CN56XX:
+ case PRID_IMP_CAVIUM_CN50XX:
+ case PRID_IMP_CAVIUM_CN52XX:
+ c->cputype = CPU_CAVIUM_OCTEON;
+ __cpu_name[cpu] = "Cavium Octeon";
+ break;
+ default:
+ printk(KERN_INFO "Unknown Octeon chip!\n");
+ c->cputype = CPU_UNKNOWN;
+ break;
+ }
+}
+
const char *__cpu_name[NR_CPUS];
__cpuinit void cpu_probe(void)
@@ -909,6 +933,9 @@ __cpuinit void cpu_probe(void)
case PRID_COMP_NXP:
cpu_probe_nxp(c, cpu);
break;
+ case PRID_COMP_CAVIUM:
+ cpu_probe_cavium(c, cpu);
+ break;
}
BUG_ON(!__cpu_name[cpu]);
diff --git a/arch/mips/kernel/csrc-r4k.c b/arch/mips/kernel/csrc-r4k.c
index 74fb74583b4..f1a2893931e 100644
--- a/arch/mips/kernel/csrc-r4k.c
+++ b/arch/mips/kernel/csrc-r4k.c
@@ -22,7 +22,7 @@ static struct clocksource clocksource_mips = {
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
-int __init init_mips_clocksource(void)
+int __init init_r4k_clocksource(void)
{
if (!cpu_has_counter || !mips_hpt_frequency)
return -ENXIO;
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index 757d48f0d80..8882e5766f2 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -385,10 +385,14 @@ NESTED(nmi_handler, PT_SIZE, sp)
.endm
.macro __build_clear_fpe
+ .set push
+ /* gas fails to assemble cfc1 for some archs (octeon).*/ \
+ .set mips1
cfc1 a1, fcr31
li a2, ~(0x3f << 12)
and a2, a1
ctc1 a2, fcr31
+ .set pop
TRACE_IRQS_ON
STI
.endm
@@ -454,7 +458,11 @@ NESTED(nmi_handler, PT_SIZE, sp)
BUILD_HANDLER fpe fpe fpe silent /* #15 */
BUILD_HANDLER mdmx mdmx sti silent /* #22 */
#ifdef CONFIG_HARDWARE_WATCHPOINTS
- BUILD_HANDLER watch watch sti silent /* #23 */
+ /*
+ * For watch, interrupts will be enabled after the watch
+ * registers are read.
+ */
+ BUILD_HANDLER watch watch cli silent /* #23 */
#else
BUILD_HANDLER watch watch sti verbose /* #23 */
#endif
diff --git a/arch/mips/kernel/irq-gic.c b/arch/mips/kernel/irq-gic.c
index 494a49a317e..87deb8f6c45 100644
--- a/arch/mips/kernel/irq-gic.c
+++ b/arch/mips/kernel/irq-gic.c
@@ -187,7 +187,7 @@ static void gic_set_affinity(unsigned int irq, const struct cpumask *cpumask)
set_bit(irq, pcpu_masks[first_cpu(tmp)].pcpu_mask);
}
- irq_desc[irq].affinity = *cpumask;
+ cpumask_copy(irq_desc[irq].affinity, cpumask);
spin_unlock_irqrestore(&gic_lock, flags);
}
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index aa2c55e3b55..2f8452b404c 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -32,6 +32,7 @@
#include <linux/module.h>
#include <linux/binfmts.h>
#include <linux/security.h>
+#include <linux/syscalls.h>
#include <linux/compat.h>
#include <linux/vfs.h>
#include <linux/ipc.h>
@@ -63,9 +64,9 @@
#define merge_64(r1, r2) ((((r2) & 0xffffffffUL) << 32) + ((r1) & 0xffffffffUL))
#endif
-asmlinkage unsigned long
-sys32_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
- unsigned long flags, unsigned long fd, unsigned long pgoff)
+SYSCALL_DEFINE6(32_mmap2, unsigned long, addr, unsigned long, len,
+ unsigned long, prot, unsigned long, flags, unsigned long, fd,
+ unsigned long, pgoff)
{
struct file * file = NULL;
unsigned long error;
@@ -121,21 +122,21 @@ struct rlimit32 {
int rlim_max;
};
-asmlinkage long sys32_truncate64(const char __user * path,
- unsigned long __dummy, int a2, int a3)
+SYSCALL_DEFINE4(32_truncate64, const char __user *, path,
+ unsigned long, __dummy, unsigned long, a2, unsigned long, a3)
{
return sys_truncate(path, merge_64(a2, a3));
}
-asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
- int a2, int a3)
+SYSCALL_DEFINE4(32_ftruncate64, unsigned long, fd, unsigned long, __dummy,
+ unsigned long, a2, unsigned long, a3)
{
return sys_ftruncate(fd, merge_64(a2, a3));
}
-asmlinkage int sys32_llseek(unsigned int fd, unsigned int offset_high,
- unsigned int offset_low, loff_t __user * result,
- unsigned int origin)
+SYSCALL_DEFINE5(32_llseek, unsigned long, fd, unsigned long, offset_high,
+ unsigned long, offset_low, loff_t __user *, result,
+ unsigned long, origin)
{
return sys_llseek(fd, offset_high, offset_low, result, origin);
}
@@ -144,20 +145,20 @@ asmlinkage int sys32_llseek(unsigned int fd, unsigned int offset_high,
lseek back to original location. They fail just like lseek does on
non-seekable files. */
-asmlinkage ssize_t sys32_pread(unsigned int fd, char __user * buf,
- size_t count, u32 unused, u64 a4, u64 a5)
+SYSCALL_DEFINE6(32_pread, unsigned long, fd, char __user *, buf, size_t, count,
+ unsigned long, unused, unsigned long, a4, unsigned long, a5)
{
return sys_pread64(fd, buf, count, merge_64(a4, a5));
}
-asmlinkage ssize_t sys32_pwrite(unsigned int fd, const char __user * buf,
- size_t count, u32 unused, u64 a4, u64 a5)
+SYSCALL_DEFINE6(32_pwrite, unsigned int, fd, const char __user *, buf,
+ size_t, count, u32, unused, u64, a4, u64, a5)
{
return sys_pwrite64(fd, buf, count, merge_64(a4, a5));
}
-asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
- struct compat_timespec __user *interval)
+SYSCALL_DEFINE2(32_sched_rr_get_interval, compat_pid_t, pid,
+ struct compat_timespec __user *, interval)
{
struct timespec t;
int ret;
@@ -174,8 +175,8 @@ asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
#ifdef CONFIG_SYSVIPC
-asmlinkage long
-sys32_ipc(u32 call, int first, int second, int third, u32 ptr, u32 fifth)
+SYSCALL_DEFINE6(32_ipc, u32, call, long, first, long, second, long, third,
+ unsigned long, ptr, unsigned long, fifth)
{
int version, err;
@@ -233,8 +234,8 @@ sys32_ipc(u32 call, int first, int second, int third, u32 ptr, u32 fifth)
#else
-asmlinkage long
-sys32_ipc(u32 call, int first, int second, int third, u32 ptr, u32 fifth)
+SYSCALL_DEFINE6(32_ipc, u32, call, int, first, int, second, int, third,
+ u32, ptr, u32 fifth)
{
return -ENOSYS;
}
@@ -242,7 +243,7 @@ sys32_ipc(u32 call, int first, int second, int third, u32 ptr, u32 fifth)
#endif /* CONFIG_SYSVIPC */
#ifdef CONFIG_MIPS32_N32
-asmlinkage long sysn32_semctl(int semid, int semnum, int cmd, u32 arg)
+SYSCALL_DEFINE4(n32_semctl, int, semid, int, semnum, int, cmd, u32, arg)
{
/* compat_sys_semctl expects a pointer to union semun */
u32 __user *uptr = compat_alloc_user_space(sizeof(u32));
@@ -251,13 +252,14 @@ asmlinkage long sysn32_semctl(int semid, int semnum, int cmd, u32 arg)
return compat_sys_semctl(semid, semnum, cmd, uptr);
}
-asmlinkage long sysn32_msgsnd(int msqid, u32 msgp, unsigned msgsz, int msgflg)
+SYSCALL_DEFINE4(n32_msgsnd, int, msqid, u32, msgp, unsigned int, msgsz,
+ int, msgflg)
{
return compat_sys_msgsnd(msqid, msgsz, msgflg, compat_ptr(msgp));
}
-asmlinkage long sysn32_msgrcv(int msqid, u32 msgp, size_t msgsz, int msgtyp,
- int msgflg)
+SYSCALL_DEFINE5(n32_msgrcv, int, msqid, u32, msgp, size_t, msgsz,
+ int, msgtyp, int, msgflg)
{
return compat_sys_msgrcv(msqid, msgsz, msgtyp, msgflg, IPC_64,
compat_ptr(msgp));
@@ -277,7 +279,7 @@ struct sysctl_args32
#ifdef CONFIG_SYSCTL_SYSCALL
-asmlinkage long sys32_sysctl(struct sysctl_args32 __user *args)
+SYSCALL_DEFINE1(32_sysctl, struct sysctl_args32 __user *, args)
{
struct sysctl_args32 tmp;
int error;
@@ -316,9 +318,16 @@ asmlinkage long sys32_sysctl(struct sysctl_args32 __user *args)
return error;
}
+#else
+
+SYSCALL_DEFINE1(32_sysctl, struct sysctl_args32 __user *, args)
+{
+ return -ENOSYS;
+}
+
#endif /* CONFIG_SYSCTL_SYSCALL */
-asmlinkage long sys32_newuname(struct new_utsname __user * name)
+SYSCALL_DEFINE1(32_newuname, struct new_utsname __user *, name)
{
int ret = 0;
@@ -334,7 +343,7 @@ asmlinkage long sys32_newuname(struct new_utsname __user * name)
return ret;
}
-asmlinkage int sys32_personality(unsigned long personality)
+SYSCALL_DEFINE1(32_personality, unsigned long, personality)
{
int ret;
personality &= 0xffffffff;
@@ -357,7 +366,7 @@ struct ustat32 {
extern asmlinkage long sys_ustat(dev_t dev, struct ustat __user * ubuf);
-asmlinkage int sys32_ustat(dev_t dev, struct ustat32 __user * ubuf32)
+SYSCALL_DEFINE2(32_ustat, dev_t, dev, struct ustat32 __user *, ubuf32)
{
int err;
struct ustat tmp;
@@ -381,8 +390,8 @@ out:
return err;
}
-asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
- s32 count)
+SYSCALL_DEFINE4(32_sendfile, long, out_fd, long, in_fd,
+ compat_off_t __user *, offset, s32, count)
{
mm_segment_t old_fs = get_fs();
int ret;
diff --git a/arch/mips/kernel/mips-mt-fpaff.c b/arch/mips/kernel/mips-mt-fpaff.c
index 5e77a3a21f9..42461310b18 100644
--- a/arch/mips/kernel/mips-mt-fpaff.c
+++ b/arch/mips/kernel/mips-mt-fpaff.c
@@ -79,7 +79,8 @@ asmlinkage long mipsmt_sys_sched_setaffinity(pid_t pid, unsigned int len,
euid = current_euid();
retval = -EPERM;
- if (euid != p->euid && euid != p->uid && !capable(CAP_SYS_NICE)) {
+ if (euid != p->cred->euid && euid != p->cred->uid &&
+ !capable(CAP_SYS_NICE)) {
read_unlock(&tasklist_lock);
goto out_unlock;
}
diff --git a/arch/mips/kernel/octeon_switch.S b/arch/mips/kernel/octeon_switch.S
new file mode 100644
index 00000000000..d52389672b0
--- /dev/null
+++ b/arch/mips/kernel/octeon_switch.S
@@ -0,0 +1,506 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1994, 1995, 1996, 1998, 1999, 2002, 2003 Ralf Baechle
+ * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
+ * Copyright (C) 1994, 1995, 1996, by Andreas Busse
+ * Copyright (C) 1999 Silicon Graphics, Inc.
+ * Copyright (C) 2000 MIPS Technologies, Inc.
+ * written by Carsten Langgaard, carstenl@mips.com
+ */
+#include <asm/asm.h>
+#include <asm/cachectl.h>
+#include <asm/fpregdef.h>
+#include <asm/mipsregs.h>
+#include <asm/asm-offsets.h>
+#include <asm/page.h>
+#include <asm/pgtable-bits.h>
+#include <asm/regdef.h>
+#include <asm/stackframe.h>
+#include <asm/thread_info.h>
+
+#include <asm/asmmacro.h>
+
+/*
+ * Offset to the current process status flags, the first 32 bytes of the
+ * stack are not used.
+ */
+#define ST_OFF (_THREAD_SIZE - 32 - PT_SIZE + PT_STATUS)
+
+/*
+ * task_struct *resume(task_struct *prev, task_struct *next,
+ * struct thread_info *next_ti)
+ */
+ .align 7
+ LEAF(resume)
+ .set arch=octeon
+#ifndef CONFIG_CPU_HAS_LLSC
+ sw zero, ll_bit
+#endif
+ mfc0 t1, CP0_STATUS
+ LONG_S t1, THREAD_STATUS(a0)
+ cpu_save_nonscratch a0
+ LONG_S ra, THREAD_REG31(a0)
+
+ /* check if we need to save COP2 registers */
+ PTR_L t2, TASK_THREAD_INFO(a0)
+ LONG_L t0, ST_OFF(t2)
+ bbit0 t0, 30, 1f
+
+ /* Disable COP2 in the stored process state */
+ li t1, ST0_CU2
+ xor t0, t1
+ LONG_S t0, ST_OFF(t2)
+
+ /* Enable COP2 so we can save it */
+ mfc0 t0, CP0_STATUS
+ or t0, t1
+ mtc0 t0, CP0_STATUS
+
+ /* Save COP2 */
+ daddu a0, THREAD_CP2
+ jal octeon_cop2_save
+ dsubu a0, THREAD_CP2
+
+ /* Disable COP2 now that we are done */
+ mfc0 t0, CP0_STATUS
+ li t1, ST0_CU2
+ xor t0, t1
+ mtc0 t0, CP0_STATUS
+
+1:
+#if CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE > 0
+ /* Check if we need to store CVMSEG state */
+ mfc0 t0, $11,7 /* CvmMemCtl */
+ bbit0 t0, 6, 3f /* Is user access enabled? */
+
+ /* Store the CVMSEG state */
+ /* Extract the size of CVMSEG */
+ andi t0, 0x3f
+ /* Multiply * (cache line size/sizeof(long)/2) */
+ sll t0, 7-LONGLOG-1
+ li t1, -32768 /* Base address of CVMSEG */
+ LONG_ADDI t2, a0, THREAD_CVMSEG /* Where to store CVMSEG to */
+ synciobdma
+2:
+ .set noreorder
+ LONG_L t8, 0(t1) /* Load from CVMSEG */
+ subu t0, 1 /* Decrement loop var */
+ LONG_L t9, LONGSIZE(t1)/* Load from CVMSEG */
+ LONG_ADDU t1, LONGSIZE*2 /* Increment loc in CVMSEG */
+ LONG_S t8, 0(t2) /* Store CVMSEG to thread storage */
+ LONG_ADDU t2, LONGSIZE*2 /* Increment loc in thread storage */
+ bnez t0, 2b /* Loop until we've copied it all */
+ LONG_S t9, -LONGSIZE(t2)/* Store CVMSEG to thread storage */
+ .set reorder
+
+ /* Disable access to CVMSEG */
+ mfc0 t0, $11,7 /* CvmMemCtl */
+ xori t0, t0, 0x40 /* Bit 6 is CVMSEG user enable */
+ mtc0 t0, $11,7 /* CvmMemCtl */
+#endif
+3:
+ /*
+ * The order of restoring the registers takes care of the race
+ * updating $28, $29 and kernelsp without disabling ints.
+ */
+ move $28, a2
+ cpu_restore_nonscratch a1
+
+#if (_THREAD_SIZE - 32) < 0x8000
+ PTR_ADDIU t0, $28, _THREAD_SIZE - 32
+#else
+ PTR_LI t0, _THREAD_SIZE - 32
+ PTR_ADDU t0, $28
+#endif
+ set_saved_sp t0, t1, t2
+
+ mfc0 t1, CP0_STATUS /* Do we really need this? */
+ li a3, 0xff01
+ and t1, a3
+ LONG_L a2, THREAD_STATUS(a1)
+ nor a3, $0, a3
+ and a2, a3
+ or a2, t1
+ mtc0 a2, CP0_STATUS
+ move v0, a0
+ jr ra
+ END(resume)
+
+/*
+ * void octeon_cop2_save(struct octeon_cop2_state *a0)
+ */
+ .align 7
+ LEAF(octeon_cop2_save)
+
+ dmfc0 t9, $9,7 /* CvmCtl register. */
+
+ /* Save the COP2 CRC state */
+ dmfc2 t0, 0x0201
+ dmfc2 t1, 0x0202
+ dmfc2 t2, 0x0200
+ sd t0, OCTEON_CP2_CRC_IV(a0)
+ sd t1, OCTEON_CP2_CRC_LENGTH(a0)
+ sd t2, OCTEON_CP2_CRC_POLY(a0)
+ /* Skip next instructions if CvmCtl[NODFA_CP2] set */
+ bbit1 t9, 28, 1f
+
+ /* Save the LLM state */
+ dmfc2 t0, 0x0402
+ dmfc2 t1, 0x040A
+ sd t0, OCTEON_CP2_LLM_DAT(a0)
+ sd t1, OCTEON_CP2_LLM_DAT+8(a0)
+
+1: bbit1 t9, 26, 3f /* done if CvmCtl[NOCRYPTO] set */
+
+ /* Save the COP2 crypto state */
+ /* this part is mostly common to both pass 1 and later revisions */
+ dmfc2 t0, 0x0084
+ dmfc2 t1, 0x0080
+ dmfc2 t2, 0x0081
+ dmfc2 t3, 0x0082
+ sd t0, OCTEON_CP2_3DES_IV(a0)
+ dmfc2 t0, 0x0088
+ sd t1, OCTEON_CP2_3DES_KEY(a0)
+ dmfc2 t1, 0x0111 /* only necessary for pass 1 */
+ sd t2, OCTEON_CP2_3DES_KEY+8(a0)
+ dmfc2 t2, 0x0102
+ sd t3, OCTEON_CP2_3DES_KEY+16(a0)
+ dmfc2 t3, 0x0103
+ sd t0, OCTEON_CP2_3DES_RESULT(a0)
+ dmfc2 t0, 0x0104
+ sd t1, OCTEON_CP2_AES_INP0(a0) /* only necessary for pass 1 */
+ dmfc2 t1, 0x0105
+ sd t2, OCTEON_CP2_AES_IV(a0)
+ dmfc2 t2, 0x0106
+ sd t3, OCTEON_CP2_AES_IV+8(a0)
+ dmfc2 t3, 0x0107
+ sd t0, OCTEON_CP2_AES_KEY(a0)
+ dmfc2 t0, 0x0110
+ sd t1, OCTEON_CP2_AES_KEY+8(a0)
+ dmfc2 t1, 0x0100
+ sd t2, OCTEON_CP2_AES_KEY+16(a0)
+ dmfc2 t2, 0x0101
+ sd t3, OCTEON_CP2_AES_KEY+24(a0)
+ mfc0 t3, $15,0 /* Get the processor ID register */
+ sd t0, OCTEON_CP2_AES_KEYLEN(a0)
+ li t0, 0x000d0000 /* This is the processor ID of Octeon Pass1 */
+ sd t1, OCTEON_CP2_AES_RESULT(a0)
+ sd t2, OCTEON_CP2_AES_RESULT+8(a0)
+ /* Skip to the Pass1 version of the remainder of the COP2 state */
+ beq t3, t0, 2f
+
+ /* the non-pass1 state when !CvmCtl[NOCRYPTO] */
+ dmfc2 t1, 0x0240
+ dmfc2 t2, 0x0241
+ dmfc2 t3, 0x0242
+ dmfc2 t0, 0x0243
+ sd t1, OCTEON_CP2_HSH_DATW(a0)
+ dmfc2 t1, 0x0244
+ sd t2, OCTEON_CP2_HSH_DATW+8(a0)
+ dmfc2 t2, 0x0245
+ sd t3, OCTEON_CP2_HSH_DATW+16(a0)
+ dmfc2 t3, 0x0246
+ sd t0, OCTEON_CP2_HSH_DATW+24(a0)
+ dmfc2 t0, 0x0247
+ sd t1, OCTEON_CP2_HSH_DATW+32(a0)
+ dmfc2 t1, 0x0248
+ sd t2, OCTEON_CP2_HSH_DATW+40(a0)
+ dmfc2 t2, 0x0249
+ sd t3, OCTEON_CP2_HSH_DATW+48(a0)
+ dmfc2 t3, 0x024A
+ sd t0, OCTEON_CP2_HSH_DATW+56(a0)
+ dmfc2 t0, 0x024B
+ sd t1, OCTEON_CP2_HSH_DATW+64(a0)
+ dmfc2 t1, 0x024C
+ sd t2, OCTEON_CP2_HSH_DATW+72(a0)
+ dmfc2 t2, 0x024D
+ sd t3, OCTEON_CP2_HSH_DATW+80(a0)
+ dmfc2 t3, 0x024E
+ sd t0, OCTEON_CP2_HSH_DATW+88(a0)
+ dmfc2 t0, 0x0250
+ sd t1, OCTEON_CP2_HSH_DATW+96(a0)
+ dmfc2 t1, 0x0251
+ sd t2, OCTEON_CP2_HSH_DATW+104(a0)
+ dmfc2 t2, 0x0252
+ sd t3, OCTEON_CP2_HSH_DATW+112(a0)
+ dmfc2 t3, 0x0253
+ sd t0, OCTEON_CP2_HSH_IVW(a0)
+ dmfc2 t0, 0x0254
+ sd t1, OCTEON_CP2_HSH_IVW+8(a0)
+ dmfc2 t1, 0x0255
+ sd t2, OCTEON_CP2_HSH_IVW+16(a0)
+ dmfc2 t2, 0x0256
+ sd t3, OCTEON_CP2_HSH_IVW+24(a0)
+ dmfc2 t3, 0x0257
+ sd t0, OCTEON_CP2_HSH_IVW+32(a0)
+ dmfc2 t0, 0x0258
+ sd t1, OCTEON_CP2_HSH_IVW+40(a0)
+ dmfc2 t1, 0x0259
+ sd t2, OCTEON_CP2_HSH_IVW+48(a0)
+ dmfc2 t2, 0x025E
+ sd t3, OCTEON_CP2_HSH_IVW+56(a0)
+ dmfc2 t3, 0x025A
+ sd t0, OCTEON_CP2_GFM_MULT(a0)
+ dmfc2 t0, 0x025B
+ sd t1, OCTEON_CP2_GFM_MULT+8(a0)
+ sd t2, OCTEON_CP2_GFM_POLY(a0)
+ sd t3, OCTEON_CP2_GFM_RESULT(a0)
+ sd t0, OCTEON_CP2_GFM_RESULT+8(a0)
+ jr ra
+
+2: /* pass 1 special stuff when !CvmCtl[NOCRYPTO] */
+ dmfc2 t3, 0x0040
+ dmfc2 t0, 0x0041
+ dmfc2 t1, 0x0042
+ dmfc2 t2, 0x0043
+ sd t3, OCTEON_CP2_HSH_DATW(a0)
+ dmfc2 t3, 0x0044
+ sd t0, OCTEON_CP2_HSH_DATW+8(a0)
+ dmfc2 t0, 0x0045
+ sd t1, OCTEON_CP2_HSH_DATW+16(a0)
+ dmfc2 t1, 0x0046
+ sd t2, OCTEON_CP2_HSH_DATW+24(a0)
+ dmfc2 t2, 0x0048
+ sd t3, OCTEON_CP2_HSH_DATW+32(a0)
+ dmfc2 t3, 0x0049
+ sd t0, OCTEON_CP2_HSH_DATW+40(a0)
+ dmfc2 t0, 0x004A
+ sd t1, OCTEON_CP2_HSH_DATW+48(a0)
+ sd t2, OCTEON_CP2_HSH_IVW(a0)
+ sd t3, OCTEON_CP2_HSH_IVW+8(a0)
+ sd t0, OCTEON_CP2_HSH_IVW+16(a0)
+
+3: /* pass 1 or CvmCtl[NOCRYPTO] set */
+ jr ra
+ END(octeon_cop2_save)
+
+/*
+ * void octeon_cop2_restore(struct octeon_cop2_state *a0)
+ */
+ .align 7
+ .set push
+ .set noreorder
+ LEAF(octeon_cop2_restore)
+ /* First cache line was prefetched before the call */
+ pref 4, 128(a0)
+ dmfc0 t9, $9,7 /* CvmCtl register. */
+
+ pref 4, 256(a0)
+ ld t0, OCTEON_CP2_CRC_IV(a0)
+ pref 4, 384(a0)
+ ld t1, OCTEON_CP2_CRC_LENGTH(a0)
+ ld t2, OCTEON_CP2_CRC_POLY(a0)
+
+ /* Restore the COP2 CRC state */
+ dmtc2 t0, 0x0201
+ dmtc2 t1, 0x1202
+ bbit1 t9, 28, 2f /* Skip LLM if CvmCtl[NODFA_CP2] is set */
+ dmtc2 t2, 0x4200
+
+ /* Restore the LLM state */
+ ld t0, OCTEON_CP2_LLM_DAT(a0)
+ ld t1, OCTEON_CP2_LLM_DAT+8(a0)
+ dmtc2 t0, 0x0402
+ dmtc2 t1, 0x040A
+
+2:
+ bbit1 t9, 26, done_restore /* done if CvmCtl[NOCRYPTO] set */
+ nop
+
+ /* Restore the COP2 crypto state common to pass 1 and pass 2 */
+ ld t0, OCTEON_CP2_3DES_IV(a0)
+ ld t1, OCTEON_CP2_3DES_KEY(a0)
+ ld t2, OCTEON_CP2_3DES_KEY+8(a0)
+ dmtc2 t0, 0x0084
+ ld t0, OCTEON_CP2_3DES_KEY+16(a0)
+ dmtc2 t1, 0x0080
+ ld t1, OCTEON_CP2_3DES_RESULT(a0)
+ dmtc2 t2, 0x0081
+ ld t2, OCTEON_CP2_AES_INP0(a0) /* only really needed for pass 1 */
+ dmtc2 t0, 0x0082
+ ld t0, OCTEON_CP2_AES_IV(a0)
+ dmtc2 t1, 0x0098
+ ld t1, OCTEON_CP2_AES_IV+8(a0)
+ dmtc2 t2, 0x010A /* only really needed for pass 1 */
+ ld t2, OCTEON_CP2_AES_KEY(a0)
+ dmtc2 t0, 0x0102
+ ld t0, OCTEON_CP2_AES_KEY+8(a0)
+ dmtc2 t1, 0x0103
+ ld t1, OCTEON_CP2_AES_KEY+16(a0)
+ dmtc2 t2, 0x0104
+ ld t2, OCTEON_CP2_AES_KEY+24(a0)
+ dmtc2 t0, 0x0105
+ ld t0, OCTEON_CP2_AES_KEYLEN(a0)
+ dmtc2 t1, 0x0106
+ ld t1, OCTEON_CP2_AES_RESULT(a0)
+ dmtc2 t2, 0x0107
+ ld t2, OCTEON_CP2_AES_RESULT+8(a0)
+ mfc0 t3, $15,0 /* Get the processor ID register */
+ dmtc2 t0, 0x0110
+ li t0, 0x000d0000 /* This is the processor ID of Octeon Pass1 */
+ dmtc2 t1, 0x0100
+ bne t0, t3, 3f /* Skip the next stuff for non-pass1 */
+ dmtc2 t2, 0x0101
+
+ /* this code is specific for pass 1 */
+ ld t0, OCTEON_CP2_HSH_DATW(a0)
+ ld t1, OCTEON_CP2_HSH_DATW+8(a0)
+ ld t2, OCTEON_CP2_HSH_DATW+16(a0)
+ dmtc2 t0, 0x0040
+ ld t0, OCTEON_CP2_HSH_DATW+24(a0)
+ dmtc2 t1, 0x0041
+ ld t1, OCTEON_CP2_HSH_DATW+32(a0)
+ dmtc2 t2, 0x0042
+ ld t2, OCTEON_CP2_HSH_DATW+40(a0)
+ dmtc2 t0, 0x0043
+ ld t0, OCTEON_CP2_HSH_DATW+48(a0)
+ dmtc2 t1, 0x0044
+ ld t1, OCTEON_CP2_HSH_IVW(a0)
+ dmtc2 t2, 0x0045
+ ld t2, OCTEON_CP2_HSH_IVW+8(a0)
+ dmtc2 t0, 0x0046
+ ld t0, OCTEON_CP2_HSH_IVW+16(a0)
+ dmtc2 t1, 0x0048
+ dmtc2 t2, 0x0049
+ b done_restore /* unconditional branch */
+ dmtc2 t0, 0x004A
+
+3: /* this is post-pass1 code */
+ ld t2, OCTEON_CP2_HSH_DATW(a0)
+ ld t0, OCTEON_CP2_HSH_DATW+8(a0)
+ ld t1, OCTEON_CP2_HSH_DATW+16(a0)
+ dmtc2 t2, 0x0240
+ ld t2, OCTEON_CP2_HSH_DATW+24(a0)
+ dmtc2 t0, 0x0241
+ ld t0, OCTEON_CP2_HSH_DATW+32(a0)
+ dmtc2 t1, 0x0242
+ ld t1, OCTEON_CP2_HSH_DATW+40(a0)
+ dmtc2 t2, 0x0243
+ ld t2, OCTEON_CP2_HSH_DATW+48(a0)
+ dmtc2 t0, 0x0244
+ ld t0, OCTEON_CP2_HSH_DATW+56(a0)
+ dmtc2 t1, 0x0245
+ ld t1, OCTEON_CP2_HSH_DATW+64(a0)
+ dmtc2 t2, 0x0246
+ ld t2, OCTEON_CP2_HSH_DATW+72(a0)
+ dmtc2 t0, 0x0247
+ ld t0, OCTEON_CP2_HSH_DATW+80(a0)
+ dmtc2 t1, 0x0248
+ ld t1, OCTEON_CP2_HSH_DATW+88(a0)
+ dmtc2 t2, 0x0249
+ ld t2, OCTEON_CP2_HSH_DATW+96(a0)
+ dmtc2 t0, 0x024A
+ ld t0, OCTEON_CP2_HSH_DATW+104(a0)
+ dmtc2 t1, 0x024B
+ ld t1, OCTEON_CP2_HSH_DATW+112(a0)
+ dmtc2 t2, 0x024C
+ ld t2, OCTEON_CP2_HSH_IVW(a0)
+ dmtc2 t0, 0x024D
+ ld t0, OCTEON_CP2_HSH_IVW+8(a0)
+ dmtc2 t1, 0x024E
+ ld t1, OCTEON_CP2_HSH_IVW+16(a0)
+ dmtc2 t2, 0x0250
+ ld t2, OCTEON_CP2_HSH_IVW+24(a0)
+ dmtc2 t0, 0x0251
+ ld t0, OCTEON_CP2_HSH_IVW+32(a0)
+ dmtc2 t1, 0x0252
+ ld t1, OCTEON_CP2_HSH_IVW+40(a0)
+ dmtc2 t2, 0x0253
+ ld t2, OCTEON_CP2_HSH_IVW+48(a0)
+ dmtc2 t0, 0x0254
+ ld t0, OCTEON_CP2_HSH_IVW+56(a0)
+ dmtc2 t1, 0x0255
+ ld t1, OCTEON_CP2_GFM_MULT(a0)
+ dmtc2 t2, 0x0256
+ ld t2, OCTEON_CP2_GFM_MULT+8(a0)
+ dmtc2 t0, 0x0257
+ ld t0, OCTEON_CP2_GFM_POLY(a0)
+ dmtc2 t1, 0x0258
+ ld t1, OCTEON_CP2_GFM_RESULT(a0)
+ dmtc2 t2, 0x0259
+ ld t2, OCTEON_CP2_GFM_RESULT+8(a0)
+ dmtc2 t0, 0x025E
+ dmtc2 t1, 0x025A
+ dmtc2 t2, 0x025B
+
+done_restore:
+ jr ra
+ nop
+ END(octeon_cop2_restore)
+ .set pop
+
+/*
+ * void octeon_mult_save()
+ * sp is assumed to point to a struct pt_regs
+ *
+ * NOTE: This is called in SAVE_SOME in stackframe.h. It can only
+ * safely modify k0 and k1.
+ */
+ .align 7
+ .set push
+ .set noreorder
+ LEAF(octeon_mult_save)
+ dmfc0 k0, $9,7 /* CvmCtl register. */
+ bbit1 k0, 27, 1f /* Skip CvmCtl[NOMUL] */
+ nop
+
+ /* Save the multiplier state */
+ v3mulu k0, $0, $0
+ v3mulu k1, $0, $0
+ sd k0, PT_MTP(sp) /* PT_MTP has P0 */
+ v3mulu k0, $0, $0
+ sd k1, PT_MTP+8(sp) /* PT_MTP+8 has P1 */
+ ori k1, $0, 1
+ v3mulu k1, k1, $0
+ sd k0, PT_MTP+16(sp) /* PT_MTP+16 has P2 */
+ v3mulu k0, $0, $0
+ sd k1, PT_MPL(sp) /* PT_MPL has MPL0 */
+ v3mulu k1, $0, $0
+ sd k0, PT_MPL+8(sp) /* PT_MPL+8 has MPL1 */
+ jr ra
+ sd k1, PT_MPL+16(sp) /* PT_MPL+16 has MPL2 */
+
+1: /* Resume here if CvmCtl[NOMUL] */
+ jr ra
+ END(octeon_mult_save)
+ .set pop
+
+/*
+ * void octeon_mult_restore()
+ * sp is assumed to point to a struct pt_regs
+ *
+ * NOTE: This is called in RESTORE_SOME in stackframe.h.
+ */
+ .align 7
+ .set push
+ .set noreorder
+ LEAF(octeon_mult_restore)
+ dmfc0 k1, $9,7 /* CvmCtl register. */
+ ld v0, PT_MPL(sp) /* MPL0 */
+ ld v1, PT_MPL+8(sp) /* MPL1 */
+ ld k0, PT_MPL+16(sp) /* MPL2 */
+ bbit1 k1, 27, 1f /* Skip CvmCtl[NOMUL] */
+ /* Normally falls through, so no time wasted here */
+ nop
+
+ /* Restore the multiplier state */
+ ld k1, PT_MTP+16(sp) /* P2 */
+ MTM0 v0 /* MPL0 */
+ ld v0, PT_MTP+8(sp) /* P1 */
+ MTM1 v1 /* MPL1 */
+ ld v1, PT_MTP(sp) /* P0 */
+ MTM2 k0 /* MPL2 */
+ MTP2 k1 /* P2 */
+ MTP1 v0 /* P1 */
+ jr ra
+ MTP0 v1 /* P0 */
+
+1: /* Resume here if CvmCtl[NOMUL] */
+ jr ra
+ nop
+ END(octeon_mult_restore)
+ .set pop
+
diff --git a/arch/mips/kernel/ptrace32.c b/arch/mips/kernel/ptrace32.c
index 1ca34104e59..c4f9ac17474 100644
--- a/arch/mips/kernel/ptrace32.c
+++ b/arch/mips/kernel/ptrace32.c
@@ -49,19 +49,6 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
int ret;
switch (request) {
- /* when I and D space are separate, these will need to be fixed. */
- case PTRACE_PEEKTEXT: /* read word at location addr. */
- case PTRACE_PEEKDATA: {
- unsigned int tmp;
- int copied;
-
- copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
- ret = -EIO;
- if (copied != sizeof(tmp))
- break;
- ret = put_user(tmp, (unsigned int __user *) (unsigned long) data);
- break;
- }
/*
* Read 4 bytes of the other process' storage
@@ -208,16 +195,6 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
break;
}
- /* when I and D space are separate, this will have to be fixed. */
- case PTRACE_POKETEXT: /* write the word at location addr. */
- case PTRACE_POKEDATA:
- ret = 0;
- if (access_process_vm(child, addr, &data, sizeof(data), 1)
- == sizeof(data))
- break;
- ret = -EIO;
- break;
-
/*
* Write 4 bytes into the other process' storage
* data is the 4 bytes that the user wants written
@@ -332,50 +309,11 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
ret = ptrace_setfpregs(child, (__u32 __user *) (__u64) data);
break;
- case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
- case PTRACE_CONT: { /* restart after signal. */
- ret = -EIO;
- if (!valid_signal(data))
- break;
- if (request == PTRACE_SYSCALL) {
- set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- }
- else {
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- }
- child->exit_code = data;
- wake_up_process(child);
- ret = 0;
- break;
- }
-
- /*
- * make the child exit. Best I can do is send it a sigkill.
- * perhaps it should be put in the status that it wants to
- * exit.
- */
- case PTRACE_KILL:
- ret = 0;
- if (child->exit_state == EXIT_ZOMBIE) /* already dead */
- break;
- child->exit_code = SIGKILL;
- wake_up_process(child);
- break;
-
case PTRACE_GET_THREAD_AREA:
ret = put_user(task_thread_info(child)->tp_value,
(unsigned int __user *) (unsigned long) data);
break;
- case PTRACE_DETACH: /* detach a process that was attached. */
- ret = ptrace_detach(child, data);
- break;
-
- case PTRACE_GETEVENTMSG:
- ret = put_user(child->ptrace_message,
- (unsigned int __user *) (unsigned long) data);
- break;
-
case PTRACE_GET_THREAD_AREA_3264:
ret = put_user(task_thread_info(child)->tp_value,
(unsigned long __user *) (unsigned long) data);
@@ -392,7 +330,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
break;
default:
- ret = ptrace_request(child, request, addr, data);
+ ret = compat_ptrace_request(child, request, addr, data);
break;
}
out:
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index d0916a55cd7..9ab70c3b5be 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -398,8 +398,8 @@ einval: li v0, -ENOSYS
sys sys_uselib 1
sys sys_swapon 2
sys sys_reboot 3
- sys old_readdir 3
- sys old_mmap 6 /* 4090 */
+ sys sys_old_readdir 3
+ sys sys_mips_mmap 6 /* 4090 */
sys sys_munmap 2
sys sys_truncate 2
sys sys_ftruncate 2
@@ -519,7 +519,7 @@ einval: li v0, -ENOSYS
sys sys_sendfile 4
sys sys_ni_syscall 0
sys sys_ni_syscall 0
- sys sys_mmap2 6 /* 4210 */
+ sys sys_mips_mmap2 6 /* 4210 */
sys sys_truncate64 4
sys sys_ftruncate64 4
sys sys_stat64 2
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index a9e17161899..9b469866715 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -207,7 +207,7 @@ sys_call_table:
PTR sys_newlstat
PTR sys_poll
PTR sys_lseek
- PTR old_mmap
+ PTR sys_mips_mmap
PTR sys_mprotect /* 5010 */
PTR sys_munmap
PTR sys_brk
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 30f3b6317a8..7438e92f8a0 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -129,12 +129,12 @@ EXPORT(sysn32_call_table)
PTR sys_newlstat
PTR sys_poll
PTR sys_lseek
- PTR old_mmap
+ PTR sys_mips_mmap
PTR sys_mprotect /* 6010 */
PTR sys_munmap
PTR sys_brk
- PTR sys32_rt_sigaction
- PTR sys32_rt_sigprocmask
+ PTR sys_32_rt_sigaction
+ PTR sys_32_rt_sigprocmask
PTR compat_sys_ioctl /* 6015 */
PTR sys_pread64
PTR sys_pwrite64
@@ -159,7 +159,7 @@ EXPORT(sysn32_call_table)
PTR compat_sys_setitimer
PTR sys_alarm
PTR sys_getpid
- PTR sys32_sendfile
+ PTR sys_32_sendfile
PTR sys_socket /* 6040 */
PTR sys_connect
PTR sys_accept
@@ -181,14 +181,14 @@ EXPORT(sysn32_call_table)
PTR sys_exit
PTR compat_sys_wait4
PTR sys_kill /* 6060 */
- PTR sys32_newuname
+ PTR sys_32_newuname
PTR sys_semget
PTR sys_semop
- PTR sysn32_semctl
+ PTR sys_n32_semctl
PTR sys_shmdt /* 6065 */
PTR sys_msgget
- PTR sysn32_msgsnd
- PTR sysn32_msgrcv
+ PTR sys_n32_msgsnd
+ PTR sys_n32_msgrcv
PTR compat_sys_msgctl
PTR compat_sys_fcntl /* 6070 */
PTR sys_flock
@@ -245,15 +245,15 @@ EXPORT(sysn32_call_table)
PTR sys_getsid
PTR sys_capget
PTR sys_capset
- PTR sys32_rt_sigpending /* 6125 */
+ PTR sys_32_rt_sigpending /* 6125 */
PTR compat_sys_rt_sigtimedwait
- PTR sys32_rt_sigqueueinfo
+ PTR sys_32_rt_sigqueueinfo
PTR sysn32_rt_sigsuspend
PTR sys32_sigaltstack
PTR compat_sys_utime /* 6130 */
PTR sys_mknod
- PTR sys32_personality
- PTR sys32_ustat
+ PTR sys_32_personality
+ PTR sys_32_ustat
PTR compat_sys_statfs
PTR compat_sys_fstatfs /* 6135 */
PTR sys_sysfs
@@ -265,14 +265,14 @@ EXPORT(sysn32_call_table)
PTR sys_sched_getscheduler
PTR sys_sched_get_priority_max
PTR sys_sched_get_priority_min
- PTR sys32_sched_rr_get_interval /* 6145 */
+ PTR sys_32_sched_rr_get_interval /* 6145 */
PTR sys_mlock
PTR sys_munlock
PTR sys_mlockall
PTR sys_munlockall
PTR sys_vhangup /* 6150 */
PTR sys_pivot_root
- PTR sys32_sysctl
+ PTR sys_32_sysctl
PTR sys_prctl
PTR compat_sys_adjtimex
PTR compat_sys_setrlimit /* 6155 */
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index fefef4af859..b0fef4ff982 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -265,12 +265,12 @@ sys_call_table:
PTR sys_olduname
PTR sys_umask /* 4060 */
PTR sys_chroot
- PTR sys32_ustat
+ PTR sys_32_ustat
PTR sys_dup2
PTR sys_getppid
PTR sys_getpgrp /* 4065 */
PTR sys_setsid
- PTR sys32_sigaction
+ PTR sys_32_sigaction
PTR sys_sgetmask
PTR sys_ssetmask
PTR sys_setreuid /* 4070 */
@@ -293,7 +293,7 @@ sys_call_table:
PTR sys_swapon
PTR sys_reboot
PTR compat_sys_old_readdir
- PTR old_mmap /* 4090 */
+ PTR sys_mips_mmap /* 4090 */
PTR sys_munmap
PTR sys_truncate
PTR sys_ftruncate
@@ -320,12 +320,12 @@ sys_call_table:
PTR compat_sys_wait4
PTR sys_swapoff /* 4115 */
PTR compat_sys_sysinfo
- PTR sys32_ipc
+ PTR sys_32_ipc
PTR sys_fsync
PTR sys32_sigreturn
PTR sys32_clone /* 4120 */
PTR sys_setdomainname
- PTR sys32_newuname
+ PTR sys_32_newuname
PTR sys_ni_syscall /* sys_modify_ldt */
PTR compat_sys_adjtimex
PTR sys_mprotect /* 4125 */
@@ -339,11 +339,11 @@ sys_call_table:
PTR sys_fchdir
PTR sys_bdflush
PTR sys_sysfs /* 4135 */
- PTR sys32_personality
+ PTR sys_32_personality
PTR sys_ni_syscall /* for afs_syscall */
PTR sys_setfsuid
PTR sys_setfsgid
- PTR sys32_llseek /* 4140 */
+ PTR sys_32_llseek /* 4140 */
PTR compat_sys_getdents
PTR compat_sys_select
PTR sys_flock
@@ -356,7 +356,7 @@ sys_call_table:
PTR sys_ni_syscall /* 4150 */
PTR sys_getsid
PTR sys_fdatasync
- PTR sys32_sysctl
+ PTR sys_32_sysctl
PTR sys_mlock
PTR sys_munlock /* 4155 */
PTR sys_mlockall
@@ -368,7 +368,7 @@ sys_call_table:
PTR sys_sched_yield
PTR sys_sched_get_priority_max
PTR sys_sched_get_priority_min
- PTR sys32_sched_rr_get_interval /* 4165 */
+ PTR sys_32_sched_rr_get_interval /* 4165 */
PTR compat_sys_nanosleep
PTR sys_mremap
PTR sys_accept
@@ -397,25 +397,25 @@ sys_call_table:
PTR sys_getresgid
PTR sys_prctl
PTR sys32_rt_sigreturn
- PTR sys32_rt_sigaction
- PTR sys32_rt_sigprocmask /* 4195 */
- PTR sys32_rt_sigpending
+ PTR sys_32_rt_sigaction
+ PTR sys_32_rt_sigprocmask /* 4195 */
+ PTR sys_32_rt_sigpending
PTR compat_sys_rt_sigtimedwait
- PTR sys32_rt_sigqueueinfo
+ PTR sys_32_rt_sigqueueinfo
PTR sys32_rt_sigsuspend
- PTR sys32_pread /* 4200 */
- PTR sys32_pwrite
+ PTR sys_32_pread /* 4200 */
+ PTR sys_32_pwrite
PTR sys_chown
PTR sys_getcwd
PTR sys_capget
PTR sys_capset /* 4205 */
PTR sys32_sigaltstack
- PTR sys32_sendfile
+ PTR sys_32_sendfile
PTR sys_ni_syscall
PTR sys_ni_syscall
- PTR sys32_mmap2 /* 4210 */
- PTR sys32_truncate64
- PTR sys32_ftruncate64
+ PTR sys_mips_mmap2 /* 4210 */
+ PTR sys_32_truncate64
+ PTR sys_32_ftruncate64
PTR sys_newstat
PTR sys_newlstat
PTR sys_newfstat /* 4215 */
@@ -481,7 +481,7 @@ sys_call_table:
PTR compat_sys_mq_notify /* 4275 */
PTR compat_sys_mq_getsetattr
PTR sys_ni_syscall /* sys_vserver */
- PTR sys32_waitid
+ PTR sys_32_waitid
PTR sys_ni_syscall /* available, was setaltroot */
PTR sys_add_key /* 4280 */
PTR sys_request_key
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index a4e106c56ab..830c5ef9932 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -19,6 +19,7 @@
#include <linux/ptrace.h>
#include <linux/unistd.h>
#include <linux/compiler.h>
+#include <linux/syscalls.h>
#include <linux/uaccess.h>
#include <asm/abi.h>
@@ -338,8 +339,8 @@ asmlinkage int sys_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
}
#ifdef CONFIG_TRAD_SIGNALS
-asmlinkage int sys_sigaction(int sig, const struct sigaction __user *act,
- struct sigaction __user *oact)
+SYSCALL_DEFINE3(sigaction, int, sig, const struct sigaction __user *, act,
+ struct sigaction __user *, oact)
{
struct k_sigaction new_ka, old_ka;
int ret;
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index 652709b353a..2e74075ac0c 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -349,8 +349,8 @@ asmlinkage int sys32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
return -ERESTARTNOHAND;
}
-asmlinkage int sys32_sigaction(int sig, const struct sigaction32 __user *act,
- struct sigaction32 __user *oact)
+SYSCALL_DEFINE3(32_sigaction, long, sig, const struct sigaction32 __user *, act,
+ struct sigaction32 __user *, oact)
{
struct k_sigaction new_ka, old_ka;
int ret;
@@ -704,9 +704,9 @@ struct mips_abi mips_abi_32 = {
.restart = __NR_O32_restart_syscall
};
-asmlinkage int sys32_rt_sigaction(int sig, const struct sigaction32 __user *act,
- struct sigaction32 __user *oact,
- unsigned int sigsetsize)
+SYSCALL_DEFINE4(32_rt_sigaction, int, sig,
+ const struct sigaction32 __user *, act,
+ struct sigaction32 __user *, oact, unsigned int, sigsetsize)
{
struct k_sigaction new_sa, old_sa;
int ret = -EINVAL;
@@ -748,8 +748,8 @@ out:
return ret;
}
-asmlinkage int sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
- compat_sigset_t __user *oset, unsigned int sigsetsize)
+SYSCALL_DEFINE4(32_rt_sigprocmask, int, how, compat_sigset_t __user *, set,
+ compat_sigset_t __user *, oset, unsigned int, sigsetsize)
{
sigset_t old_set, new_set;
int ret;
@@ -770,8 +770,8 @@ asmlinkage int sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
return ret;
}
-asmlinkage int sys32_rt_sigpending(compat_sigset_t __user *uset,
- unsigned int sigsetsize)
+SYSCALL_DEFINE2(32_rt_sigpending, compat_sigset_t __user *, uset,
+ unsigned int, sigsetsize)
{
int ret;
sigset_t set;
@@ -787,7 +787,8 @@ asmlinkage int sys32_rt_sigpending(compat_sigset_t __user *uset,
return ret;
}
-asmlinkage int sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo)
+SYSCALL_DEFINE3(32_rt_sigqueueinfo, int, pid, int, sig,
+ compat_siginfo_t __user *, uinfo)
{
siginfo_t info;
int ret;
@@ -802,10 +803,9 @@ asmlinkage int sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *
return ret;
}
-asmlinkage long
-sys32_waitid(int which, compat_pid_t pid,
- compat_siginfo_t __user *uinfo, int options,
- struct compat_rusage __user *uru)
+SYSCALL_DEFINE5(32_waitid, int, which, compat_pid_t, pid,
+ compat_siginfo_t __user *, uinfo, int, options,
+ struct compat_rusage __user *, uru)
{
siginfo_t info;
struct rusage ru;
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index b6cca01ff82..5f5af7d4c89 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -686,7 +686,7 @@ void smtc_forward_irq(unsigned int irq)
* and efficiency, we just pick the easiest one to find.
*/
- target = first_cpu(irq_desc[irq].affinity);
+ target = cpumask_first(irq_desc[irq].affinity);
/*
* We depend on the platform code to have correctly processed
@@ -921,11 +921,13 @@ void ipi_decode(struct smtc_ipi *pipi)
struct clock_event_device *cd;
void *arg_copy = pipi->arg;
int type_copy = pipi->type;
+ int irq = MIPS_CPU_IRQ_BASE + 1;
+
smtc_ipi_nq(&freeIPIq, pipi);
switch (type_copy) {
case SMTC_CLOCK_TICK:
irq_enter();
- kstat_this_cpu.irqs[MIPS_CPU_IRQ_BASE + 1]++;
+ kstat_incr_irqs_this_cpu(irq, irq_to_desc(irq));
cd = &per_cpu(mips_clockevent_device, cpu);
cd->event_handler(cd);
irq_exit();
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 37970d9b218..8cf38464404 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -152,9 +152,9 @@ out:
return error;
}
-asmlinkage unsigned long
-old_mmap(unsigned long addr, unsigned long len, int prot,
- int flags, int fd, off_t offset)
+SYSCALL_DEFINE6(mips_mmap, unsigned long, addr, unsigned long, len,
+ unsigned long, prot, unsigned long, flags, unsigned long,
+ fd, off_t, offset)
{
unsigned long result;
@@ -168,9 +168,9 @@ out:
return result;
}
-asmlinkage unsigned long
-sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
- unsigned long flags, unsigned long fd, unsigned long pgoff)
+SYSCALL_DEFINE6(mips_mmap2, unsigned long, addr, unsigned long, len,
+ unsigned long, prot, unsigned long, flags, unsigned long, fd,
+ unsigned long, pgoff)
{
if (pgoff & (~PAGE_MASK >> 12))
return -EINVAL;
@@ -240,7 +240,7 @@ out:
/*
* Compacrapability ...
*/
-asmlinkage int sys_uname(struct old_utsname __user * name)
+SYSCALL_DEFINE1(uname, struct old_utsname __user *, name)
{
if (name && !copy_to_user(name, utsname(), sizeof (*name)))
return 0;
@@ -250,7 +250,7 @@ asmlinkage int sys_uname(struct old_utsname __user * name)
/*
* Compacrapability ...
*/
-asmlinkage int sys_olduname(struct oldold_utsname __user * name)
+SYSCALL_DEFINE1(olduname, struct oldold_utsname __user *, name)
{
int error;
@@ -279,7 +279,7 @@ asmlinkage int sys_olduname(struct oldold_utsname __user * name)
return error;
}
-asmlinkage int sys_set_thread_area(unsigned long addr)
+SYSCALL_DEFINE1(set_thread_area, unsigned long, addr)
{
struct thread_info *ti = task_thread_info(current);
@@ -290,7 +290,7 @@ asmlinkage int sys_set_thread_area(unsigned long addr)
return 0;
}
-asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
+asmlinkage int _sys_sysmips(long cmd, long arg1, long arg2, long arg3)
{
switch (cmd) {
case MIPS_ATOMIC_SET:
@@ -325,8 +325,8 @@ asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
*
* This is really horribly ugly.
*/
-asmlinkage int sys_ipc(unsigned int call, int first, int second,
- unsigned long third, void __user *ptr, long fifth)
+SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, int, second,
+ unsigned long, third, void __user *, ptr, long, fifth)
{
int version, ret;
@@ -411,7 +411,7 @@ asmlinkage int sys_ipc(unsigned int call, int first, int second,
/*
* No implemented yet ...
*/
-asmlinkage int sys_cachectl(char *addr, int nbytes, int op)
+SYSCALL_DEFINE3(cachectl, char *, addr, int, nbytes, int, op)
{
return -ENOSYS;
}
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 353056110f2..b2d7041341b 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -47,6 +47,7 @@
#include <asm/mmu_context.h>
#include <asm/types.h>
#include <asm/stacktrace.h>
+#include <asm/irq.h>
extern void check_wait(void);
extern asmlinkage void r4k_wait(void);
@@ -78,6 +79,10 @@ extern asmlinkage void handle_reserved(void);
extern int fpu_emulator_cop1Handler(struct pt_regs *xcp,
struct mips_fpu_struct *ctx, int has_fpu);
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+extern asmlinkage void octeon_cop2_restore(struct octeon_cop2_state *task);
+#endif
+
void (*board_be_init)(void);
int (*board_be_handler)(struct pt_regs *regs, int is_fixup);
void (*board_nmi_handler_setup)(void);
@@ -860,6 +865,7 @@ asmlinkage void do_cpu(struct pt_regs *regs)
unsigned int opcode;
unsigned int cpid;
int status;
+ unsigned long __maybe_unused flags;
die_if_kernel("do_cpu invoked from kernel context!", regs);
@@ -915,6 +921,17 @@ asmlinkage void do_cpu(struct pt_regs *regs)
return;
case 2:
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+ prefetch(&current->thread.cp2);
+ local_irq_save(flags);
+ KSTK_STATUS(current) |= ST0_CU2;
+ status = read_c0_status();
+ write_c0_status(status | ST0_CU2);
+ octeon_cop2_restore(&(current->thread.cp2));
+ write_c0_status(status & ~ST0_CU2);
+ local_irq_restore(flags);
+ return;
+#endif
case 3:
break;
}
@@ -927,6 +944,9 @@ asmlinkage void do_mdmx(struct pt_regs *regs)
force_sig(SIGILL, current);
}
+/*
+ * Called with interrupts disabled.
+ */
asmlinkage void do_watch(struct pt_regs *regs)
{
u32 cause;
@@ -946,9 +966,12 @@ asmlinkage void do_watch(struct pt_regs *regs)
*/
if (test_tsk_thread_flag(current, TIF_LOAD_WATCH)) {
mips_read_watch_registers();
+ local_irq_enable();
force_sig(SIGTRAP, current);
- } else
+ } else {
mips_clear_watch_registers();
+ local_irq_enable();
+ }
}
asmlinkage void do_mcheck(struct pt_regs *regs)
@@ -1488,6 +1511,10 @@ void __cpuinit per_cpu_trap_init(void)
write_c0_hwrena(enable);
}
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+ write_c0_hwrena(0xc000000f); /* Octeon has register 30 and 31 */
+#endif
+
#ifdef CONFIG_MIPS_MT_SMTC
if (!secondaryTC) {
#endif /* CONFIG_MIPS_MT_SMTC */
@@ -1561,7 +1588,11 @@ void __init set_handler(unsigned long offset, void *addr, unsigned long size)
static char panic_null_cerr[] __cpuinitdata =
"Trying to set NULL cache error exception handler";
-/* Install uncached CPU exception handler */
+/*
+ * Install uncached CPU exception handler.
+ * This is suitable only for the cache error exception which is the only
+ * exception handler that is being run uncached.
+ */
void __cpuinit set_uncached_handler(unsigned long offset, void *addr,
unsigned long size)
{
@@ -1572,7 +1603,7 @@ void __cpuinit set_uncached_handler(unsigned long offset, void *addr,
unsigned long uncached_ebase = TO_UNCAC(ebase);
#endif
if (cpu_has_mips_r2)
- ebase += (read_c0_ebase() & 0x3ffff000);
+ uncached_ebase += (read_c0_ebase() & 0x3ffff000);
if (!addr)
panic(panic_null_cerr);
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-10 18:40:53 +0000