diff options
| author | Timothy Pearson <tpearson@raptorengineeringinc.com> | 2015-05-18 16:04:10 -0500 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2015-12-15 16:41:13 +0100 |
| commit | 44d53428352ff5d6c8941160429735b5465add5f (patch) | |
| tree | 8b902553c7a507fd8ad303e45a19b70b1887eed1 /src/arch | |
| parent | a09bb426d4149506c8cc588704cb5d8136f9c3f9 (diff) | |
src/console: Add x86 romstage spinlock option and printk spinlock support
This paves the way for AP printk spinlock on AMD platforms
Change-Id: Ice42a0d3177736bf6e1bc601092e413601866f20
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: https://review.coreboot.org/11958
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/x86/include/arch/smp/spinlock.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/arch/x86/include/arch/smp/spinlock.h b/src/arch/x86/include/arch/smp/spinlock.h index 32be2f25fb..74e532c68a 100644 --- a/src/arch/x86/include/arch/smp/spinlock.h +++ b/src/arch/x86/include/arch/smp/spinlock.h @@ -1,7 +1,7 @@ #ifndef ARCH_SMP_SPINLOCK_H #define ARCH_SMP_SPINLOCK_H -#ifndef __PRE_RAM__ +#if !defined(__PRE_RAM__) || IS_ENABLED(CONFIG_HAVE_ROMSTAGE_CONSOLE_SPINLOCK) /* * Your basic SMP spinlocks, allowing only a single CPU anywhere @@ -11,9 +11,18 @@ typedef struct { volatile unsigned int lock; } spinlock_t; +#ifdef __PRE_RAM__ +spinlock_t *romstage_console_lock(void); +void initialize_romstage_console_lock(void); +#endif #define SPIN_LOCK_UNLOCKED (spinlock_t) { 1 } + +#ifndef __PRE_RAM__ #define DECLARE_SPIN_LOCK(x) static spinlock_t x = SPIN_LOCK_UNLOCKED; +#else +#define DECLARE_SPIN_LOCK(x) +#endif /* * Simple spin lock operations. There are two variants, one clears IRQ's |