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| author | Guo Ren <guoren@linux.alibaba.com> | 2020-04-02 19:39:42 +0800 |
|---|---|---|
| committer | Guo Ren <guoren@linux.alibaba.com> | 2020-04-02 19:39:42 +0800 |
| commit | 000591f1ca3312d9a29e15a9e3fe5c4171f75586 (patch) | |
| tree | 0090674bc8d4d35e1fa83f4735a7327d6a51150a /arch/csky | |
| parent | de8636787119193ea1a4b7c1a13be0de5b64210f (diff) | |
| download | linux-000591f1ca3312d9a29e15a9e3fe5c4171f75586.tar.bz2 | |
csky: Enable LOCKDEP_SUPPORT
Lockdep is needed by proving the spinlocks and rwlocks. Currently,
we only put trace_hardirqs_on/off with csky_irq and
ret_from_exception.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Diffstat (limited to 'arch/csky')
| -rw-r--r-- | arch/csky/Kconfig | 3 | ||||
| -rw-r--r-- | arch/csky/kernel/entry.S | 11 |
2 files changed, 14 insertions, 0 deletions
diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig index a75b8e1fef1d..998188f44fd7 100644 --- a/arch/csky/Kconfig +++ b/arch/csky/Kconfig @@ -69,6 +69,9 @@ config CSKY select PCI_SYSCALL if PCI select PCI_MSI if PCI +config LOCKDEP_SUPPORT + def_bool y + config CPU_HAS_CACHEV2 bool diff --git a/arch/csky/kernel/entry.S b/arch/csky/kernel/entry.S index 0bde1d9fd277..8b040a1b11d0 100644 --- a/arch/csky/kernel/entry.S +++ b/arch/csky/kernel/entry.S @@ -225,6 +225,13 @@ ret_from_exception: cmpnei r12, 0 bt exit_work 1: +#ifdef CONFIG_TRACE_IRQFLAGS + ld r10, (sp, LSAVE_PSR) + btsti r10, 6 + bf 2f + jbsr trace_hardirqs_on +2: +#endif RESTORE_ALL exit_work: @@ -280,6 +287,10 @@ ENTRY(csky_irq) zero_fp psrset ee +#ifdef CONFIG_TRACE_IRQFLAGS + jbsr trace_hardirqs_off +#endif + #ifdef CONFIG_PREEMPTION mov r9, sp /* Get current stack pointer */ bmaski r10, THREAD_SHIFT |