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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-tcc into devel-stable

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This commit is contained in:
Russell King
2011-03-12 20:33:51 +00:00
parent 3afdb0f352 f91f9cd505
commit 8688a1a863
387 changed files with 3268 additions and 1564 deletions
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26
arch/arm/kernel/hw_breakpoint.c
View File

@@ -836,9 +836,11 @@ static int hw_breakpoint_pending(unsigned long addr, unsigned int fsr,
/*
* One-time initialisation.
*/
static void reset_ctrl_regs(void *unused)
static void reset_ctrl_regs(void *info)
{
int i;
int i, cpu = smp_processor_id();
u32 dbg_power;
cpumask_t *cpumask = info;
/*
* v7 debug contains save and restore registers so that debug state
@@ -849,6 +851,17 @@ static void reset_ctrl_regs(void *unused)
* later on.
*/
if (debug_arch >= ARM_DEBUG_ARCH_V7_ECP14) {
/*
* Ensure sticky power-down is clear (i.e. debug logic is
* powered up).
*/
asm volatile("mrc p14, 0, %0, c1, c5, 4" : "=r" (dbg_power));
if ((dbg_power & 0x1) == 0) {
pr_warning("CPU %d debug is powered down!\n", cpu);
cpumask_or(cpumask, cpumask, cpumask_of(cpu));
return;
}
/*
* Unconditionally clear the lock by writing a value
* other than 0xC5ACCE55 to the access register.
@@ -887,6 +900,7 @@ static struct notifier_block __cpuinitdata dbg_reset_nb = {
static int __init arch_hw_breakpoint_init(void)
{
u32 dscr;
cpumask_t cpumask = { CPU_BITS_NONE };
debug_arch = get_debug_arch();
@@ -911,7 +925,13 @@ static int __init arch_hw_breakpoint_init(void)
* Reset the breakpoint resources. We assume that a halting
* debugger will leave the world in a nice state for us.
*/
on_each_cpu(reset_ctrl_regs, NULL, 1);
on_each_cpu(reset_ctrl_regs, &cpumask, 1);
if (!cpumask_empty(&cpumask)) {
core_num_brps = 0;
core_num_reserved_brps = 0;
core_num_wrps = 0;
return 0;
}
ARM_DBG_READ(c1, 0, dscr);
if (dscr & ARM_DSCR_HDBGEN) {

6
arch/arm/kernel/ptrace.c
View File

@@ -996,10 +996,10 @@ static int ptrace_gethbpregs(struct task_struct *tsk, long num,
while (!(arch_ctrl.len & 0x1))
arch_ctrl.len >>= 1;
if (idx & 0x1)
reg = encode_ctrl_reg(arch_ctrl);
else
if (num & 0x1)
reg = bp->attr.bp_addr;
else
reg = encode_ctrl_reg(arch_ctrl);
}
put: