提交 fe45736f 编写于 作者: L Linus Torvalds

Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:
 "The usual random collection of relatively small ARM fixes"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8063/1: bL_switcher: fix individual online status reporting of removed CPUs
  ARM: 8064/1: fix v7-M signal return
  ARM: 8057/1: amba: Add Qualcomm vendor ID.
  ARM: 8052/1: unwind: Fix handling of "Pop r4-r[4+nnn],r14" opcode
  ARM: 8051/1: put_user: fix possible data corruption in put_user
  ARM: 8048/1: fix v7-M setup stack location
......@@ -433,8 +433,12 @@ static void bL_switcher_restore_cpus(void)
{
int i;
for_each_cpu(i, &bL_switcher_removed_logical_cpus)
cpu_up(i);
for_each_cpu(i, &bL_switcher_removed_logical_cpus) {
struct device *cpu_dev = get_cpu_device(i);
int ret = device_online(cpu_dev);
if (ret)
dev_err(cpu_dev, "switcher: unable to restore CPU\n");
}
}
static int bL_switcher_halve_cpus(void)
......@@ -521,7 +525,7 @@ static int bL_switcher_halve_cpus(void)
continue;
}
ret = cpu_down(i);
ret = device_offline(get_cpu_device(i));
if (ret) {
bL_switcher_restore_cpus();
return ret;
......
......@@ -171,8 +171,9 @@ extern int __put_user_8(void *, unsigned long long);
#define __put_user_check(x,p) \
({ \
unsigned long __limit = current_thread_info()->addr_limit - 1; \
const typeof(*(p)) __user *__tmp_p = (p); \
register const typeof(*(p)) __r2 asm("r2") = (x); \
register const typeof(*(p)) __user *__p asm("r0") = (p);\
register const typeof(*(p)) __user *__p asm("r0") = __tmp_p; \
register unsigned long __l asm("r1") = __limit; \
register int __e asm("r0"); \
switch (sizeof(*(__p))) { \
......
......@@ -132,6 +132,10 @@
orrne r5, V7M_xPSR_FRAMEPTRALIGN
biceq r5, V7M_xPSR_FRAMEPTRALIGN
@ ensure bit 0 is cleared in the PC, otherwise behaviour is
@ unpredictable
bic r4, #1
@ write basic exception frame
stmdb r2!, {r1, r3-r5}
ldmia sp, {r1, r3-r5}
......
......@@ -285,7 +285,7 @@ static int unwind_exec_pop_r4_to_rN(struct unwind_ctrl_block *ctrl,
if (unwind_pop_register(ctrl, &vsp, reg))
return -URC_FAILURE;
if (insn & 0x80)
if (insn & 0x8)
if (unwind_pop_register(ctrl, &vsp, 14))
return -URC_FAILURE;
......
......@@ -123,6 +123,11 @@ __v7m_setup:
mov pc, lr
ENDPROC(__v7m_setup)
.align 2
__v7m_setup_stack:
.space 4 * 8 @ 8 registers
__v7m_setup_stack_top:
define_processor_functions v7m, dabort=nommu_early_abort, pabort=legacy_pabort, nommu=1
.section ".rodata"
......@@ -152,6 +157,3 @@ __v7m_proc_info:
.long nop_cache_fns @ proc_info_list.cache
.size __v7m_proc_info, . - __v7m_proc_info
__v7m_setup_stack:
.space 4 * 8 @ 8 registers
__v7m_setup_stack_top:
......@@ -47,6 +47,7 @@ struct amba_driver {
enum amba_vendor {
AMBA_VENDOR_ARM = 0x41,
AMBA_VENDOR_ST = 0x80,
AMBA_VENDOR_QCOM = 0x51,
};
extern struct bus_type amba_bustype;
......
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