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alistair23-linux
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Merge branch '3.16-fixes' into mips-for-linux-next

hifive-unleashed-5.1
Ralf Baechle 2014-08-02 00:07:03 +02:00
parent c6b7b9f290 1062080a7d
commit 475d5928b7
15 changed files with 116 additions and 28 deletions
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2
arch/mips/jz4740/platform.c
View File

@ -59,7 +59,7 @@ struct platform_device jz4740_usb_ohci_device = {
/* USB Device Controller */
struct platform_device jz4740_udc_xceiv_device = {
.name = "usb_phy_gen_xceiv",
.name = "usb_phy_generic",
.id = 0,
};

56
arch/mips/kernel/ftrace.c
View File

@ -63,7 +63,7 @@ static inline int in_kernel_space(unsigned long ip)
((unsigned int)(JAL | (((addr) >> 2) & ADDR_MASK)))
static unsigned int insn_jal_ftrace_caller __read_mostly;
static unsigned int insn_lui_v1_hi16_mcount __read_mostly;
static unsigned int insn_la_mcount[2] __read_mostly;
static unsigned int insn_j_ftrace_graph_caller __maybe_unused __read_mostly;
static inline void ftrace_dyn_arch_init_insns(void)
@ -71,10 +71,10 @@ static inline void ftrace_dyn_arch_init_insns(void)
u32 *buf;
unsigned int v1;
/* lui v1, hi16_mcount */
/* la v1, _mcount */
v1 = 3;
buf = (u32 *)&insn_lui_v1_hi16_mcount;
UASM_i_LA_mostly(&buf, v1, MCOUNT_ADDR);
buf = (u32 *)&insn_la_mcount[0];
UASM_i_LA(&buf, v1, MCOUNT_ADDR);
/* jal (ftrace_caller + 8), jump over the first two instruction */
buf = (u32 *)&insn_jal_ftrace_caller;
@ -111,14 +111,47 @@ static int ftrace_modify_code_2(unsigned long ip, unsigned int new_code1,
unsigned int new_code2)
{
int faulted;
mm_segment_t old_fs;
safe_store_code(new_code1, ip, faulted);
if (unlikely(faulted))
return -EFAULT;
safe_store_code(new_code2, ip + 4, faulted);
ip += 4;
safe_store_code(new_code2, ip, faulted);
if (unlikely(faulted))
return -EFAULT;
ip -= 4;
old_fs = get_fs();
set_fs(get_ds());
flush_icache_range(ip, ip + 8);
set_fs(old_fs);
return 0;
}
static int ftrace_modify_code_2r(unsigned long ip, unsigned int new_code1,
unsigned int new_code2)
{
int faulted;
mm_segment_t old_fs;
ip += 4;
safe_store_code(new_code2, ip, faulted);
if (unlikely(faulted))
return -EFAULT;
ip -= 4;
safe_store_code(new_code1, ip, faulted);
if (unlikely(faulted))
return -EFAULT;
old_fs = get_fs();
set_fs(get_ds());
flush_icache_range(ip, ip + 8);
set_fs(old_fs);
return 0;
}
#endif
@ -130,13 +163,14 @@ static int ftrace_modify_code_2(unsigned long ip, unsigned int new_code1,
*
* move at, ra
* jal _mcount --> nop
* sub sp, sp, 8 --> nop (CONFIG_32BIT)
*
* 2. For modules:
*
* 2.1 For KBUILD_MCOUNT_RA_ADDRESS and CONFIG_32BIT
*
* lui v1, hi_16bit_of_mcount --> b 1f (0x10000005)
* addiu v1, v1, low_16bit_of_mcount
* addiu v1, v1, low_16bit_of_mcount --> nop (CONFIG_32BIT)
* move at, ra
* move $12, ra_address
* jalr v1
@ -145,7 +179,7 @@ static int ftrace_modify_code_2(unsigned long ip, unsigned int new_code1,
* 2.2 For the Other situations
*
* lui v1, hi_16bit_of_mcount --> b 1f (0x10000004)
* addiu v1, v1, low_16bit_of_mcount
* addiu v1, v1, low_16bit_of_mcount --> nop (CONFIG_32BIT)
* move at, ra
* jalr v1
* nop | move $12, ra_address | sub sp, sp, 8
@ -184,10 +218,14 @@ int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
unsigned int new;
unsigned long ip = rec->ip;
new = in_kernel_space(ip) ? insn_jal_ftrace_caller :
insn_lui_v1_hi16_mcount;
new = in_kernel_space(ip) ? insn_jal_ftrace_caller : insn_la_mcount[0];
#ifdef CONFIG_64BIT
return ftrace_modify_code(ip, new);
#else
return ftrace_modify_code_2r(ip, new, in_kernel_space(ip) ?
INSN_NOP : insn_la_mcount[1]);
#endif
}
#define FTRACE_CALL_IP ((unsigned long)(&ftrace_call))

13
arch/mips/kernel/mcount.S
View File

@ -84,6 +84,19 @@ _mcount:
#endif
PTR_SUBU a0, ra, 8 /* arg1: self address */
PTR_LA t1, _stext
sltu t2, a0, t1 /* t2 = (a0 < _stext) */
PTR_LA t1, _etext
sltu t3, t1, a0 /* t3 = (a0 > _etext) */
or t1, t2, t3
beqz t1, ftrace_call
nop
#if defined(KBUILD_MCOUNT_RA_ADDRESS) && defined(CONFIG_32BIT)
PTR_SUBU a0, a0, 16 /* arg1: adjust to module's recorded callsite */
#else
PTR_SUBU a0, a0, 12
#endif
.globl ftrace_call
ftrace_call:
nop /* a placeholder for the call to a real tracing function */

3
arch/mips/kernel/ptrace.c
View File

@ -150,6 +150,7 @@ int ptrace_setfpregs(struct task_struct *child, __u32 __user *data)
}
__get_user(child->thread.fpu.fcr31, data + 64);
child->thread.fpu.fcr31 &= ~FPU_CSR_ALL_X;
/* FIR may not be written. */
@ -695,7 +696,7 @@ long arch_ptrace(struct task_struct *child, long request,
break;
#endif
case FPC_CSR:
child->thread.fpu.fcr31 = data;
child->thread.fpu.fcr31 = data & ~FPU_CSR_ALL_X;
break;
case DSP_BASE ... DSP_BASE + 5: {
dspreg_t *dregs;

3
arch/mips/kernel/rtlx-cmp.c
View File

@ -77,6 +77,9 @@ int __init rtlx_module_init(void)
dev = device_create(mt_class, NULL, MKDEV(major, i), NULL,
"%s%d", RTLX_MODULE_NAME, i);
if (IS_ERR(dev)) {
while (i--)
device_destroy(mt_class, MKDEV(major, i));
err = PTR_ERR(dev);
goto out_chrdev;
}

3
arch/mips/kernel/rtlx-mt.c
View File

@ -103,6 +103,9 @@ int __init rtlx_module_init(void)
dev = device_create(mt_class, NULL, MKDEV(major, i), NULL,
"%s%d", RTLX_MODULE_NAME, i);
if (IS_ERR(dev)) {
while (i--)
device_destroy(mt_class, MKDEV(major, i));
err = PTR_ERR(dev);
goto out_chrdev;
}

2
arch/mips/kernel/scall64-n32.S
View File

@ -162,7 +162,7 @@ EXPORT(sysn32_call_table)
PTR sys_getpeername
PTR sys_socketpair
PTR compat_sys_setsockopt
PTR sys_getsockopt
PTR compat_sys_getsockopt
PTR __sys_clone /* 6055 */
PTR __sys_fork
PTR compat_sys_execve

2
arch/mips/kernel/smp-mt.c
View File

@ -288,6 +288,7 @@ struct plat_smp_ops vsmp_smp_ops = {
.prepare_cpus = vsmp_prepare_cpus,
};
#ifdef CONFIG_PROC_FS
static int proc_cpuinfo_chain_call(struct notifier_block *nfb,
unsigned long action_unused, void *data)
{
@ -309,3 +310,4 @@ static int __init proc_cpuinfo_notifier_init(void)
}
subsys_initcall(proc_cpuinfo_notifier_init);
#endif

1
arch/mips/kernel/unaligned.c
View File

@ -690,7 +690,6 @@ static void emulate_load_store_insn(struct pt_regs *regs,
case sdc1_op:
die_if_kernel("Unaligned FP access in kernel code", regs);
BUG_ON(!used_math());
BUG_ON(!is_fpu_owner());
lose_fpu(1); /* Save FPU state for the emulator. */
res = fpu_emulator_cop1Handler(regs, &current->thread.fpu, 1,

2
arch/mips/math-emu/cp1emu.c
View File

@ -1827,7 +1827,7 @@ dcopuop:
case -1:
if (cpu_has_mips_4_5_r)
cbit = fpucondbit[MIPSInst_RT(ir) >> 2];
cbit = fpucondbit[MIPSInst_FD(ir) >> 2];
else
cbit = FPU_CSR_COND;
if (rv.w)

3
arch/mips/mm/tlbex.c
View File

@ -429,6 +429,7 @@ static void build_r3000_tlb_refill_handler(void)
(unsigned int)(p - tlb_handler));
memcpy((void *)ebase, tlb_handler, 0x80);
local_flush_icache_range(ebase, ebase + 0x80);
dump_handler("r3000_tlb_refill", (u32 *)ebase, 32);
}
@ -1299,6 +1300,7 @@ static void build_r4000_tlb_refill_handler(void)
}
#ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT
uasm_l_tlb_huge_update(&l, p);
UASM_i_LW(&p, K0, 0, K1);
build_huge_update_entries(&p, htlb_info.huge_pte, K1);
build_huge_tlb_write_entry(&p, &l, &r, K0, tlb_random,
htlb_info.restore_scratch);
@ -1415,6 +1417,7 @@ static void build_r4000_tlb_refill_handler(void)
final_len);
memcpy((void *)ebase, final_handler, 0x100);
local_flush_icache_range(ebase, ebase + 0x100);
dump_handler("r4000_tlb_refill", (u32 *)ebase, 64);
}

1
arch/mips/rb532/devices.c
View File

@ -223,6 +223,7 @@ static struct platform_device rb532_wdt = {
static struct plat_serial8250_port rb532_uart_res[] = {
{
.type = PORT_16550A,
.membase = (char *)KSEG1ADDR(REGBASE + UART0BASE),
.irq = UART0_IRQ,
.regshift = 2,

10
arch/mips/sgi-ip22/ip22-gio.c
View File

@ -27,8 +27,14 @@ static struct {
{ .name = "SGI GR2/GR3", .id = 0x7f },
};
static void gio_bus_release(struct device *dev)
{
kfree(dev);
}
static struct device gio_bus = {
.init_name = "gio",
.release = &gio_bus_release,
};
/**
@ -413,8 +419,10 @@ int __init ip22_gio_init(void)
int ret;
ret = device_register(&gio_bus);
if (ret)
if (ret) {
put_device(&gio_bus);
return ret;
}
ret = bus_register(&gio_bus_type);
if (!ret) {

14
arch/mips/txx9/generic/7segled.c
View File

@ -83,6 +83,11 @@ static struct bus_type tx_7segled_subsys = {
.dev_name = "7segled",
};
static void tx_7segled_release(struct device *dev)
{
kfree(dev);
}
static int __init tx_7segled_init_sysfs(void)
{
int error, i;
@ -103,11 +108,14 @@ static int __init tx_7segled_init_sysfs(void)
}
dev->id = i;
dev->bus = &tx_7segled_subsys;
dev->release = &tx_7segled_release;
error = device_register(dev);
if (!error) {
device_create_file(dev, &dev_attr_ascii);
device_create_file(dev, &dev_attr_raw);
if (error) {
put_device(dev);
return error;
}
device_create_file(dev, &dev_attr_ascii);
device_create_file(dev, &dev_attr_raw);
}
return error;
}

29
arch/mips/txx9/generic/setup.c
View File

@ -937,6 +937,14 @@ static ssize_t txx9_sram_write(struct file *filp, struct kobject *kobj,
return size;
}
static void txx9_device_release(struct device *dev)
{
struct txx9_sramc_dev *tdev;
tdev = container_of(dev, struct txx9_sramc_dev, dev);
kfree(tdev);
}
void __init txx9_sramc_init(struct resource *r)
{
struct txx9_sramc_dev *dev;
@ -951,8 +959,11 @@ void __init txx9_sramc_init(struct resource *r)
return;
size = resource_size(r);
dev->base = ioremap(r->start, size);
if (!dev->base)
goto exit;
if (!dev->base) {
kfree(dev);
return;
}
dev->dev.release = &txx9_device_release;
dev->dev.bus = &txx9_sramc_subsys;
sysfs_bin_attr_init(&dev->bindata_attr);
dev->bindata_attr.attr.name = "bindata";
@ -963,17 +974,15 @@ void __init txx9_sramc_init(struct resource *r)
dev->bindata_attr.private = dev;
err = device_register(&dev->dev);
if (err)
goto exit;
goto exit_put;
err = sysfs_create_bin_file(&dev->dev.kobj, &dev->bindata_attr);
if (err) {
device_unregister(&dev->dev);
goto exit;
}
return;
exit:
if (dev) {
if (dev->base)
iounmap(dev->base);
iounmap(dev->base);
kfree(dev);
}
return;
exit_put:
put_device(&dev->dev);
return;
}