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| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-22 11:22:59 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-22 11:22:59 -0700 |
| commit | 7578634990fb47cc30083fbd812689aa6deacfc0 (patch) | |
| tree | f493860658579d9572a19b3a41fcea2de035e49f /arch/arm/mm/cache-l2x0.c | |
| parent | d7f5e3df3574c6e38b99f5fe22f15540b2b9811d (diff) | |
| parent | 5957a4eb284dd6f522b248b674792416466555b2 (diff) | |
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (60 commits)
[ARM] 4524/1: S3C: Move register out of include/asm-arm/arch-s3c2410
[ARM] 4523/1: S3C: Remove FIFO_MAX from uncompression headers
[ARM] 4522/1: S3C: split include/asm-arm/arch/memory.h
[ARM] 4521/2: S3C: Reorganise VA mapping headers
[ARM] 4520/1: S3C: Remove old VA values from static map
[ARM] 4519/1: S3C: split S3C2400 values out of S3C24XX map.h
[ARM] 4518/1: S3C: Rename watchdog configuration options
[ARM] 4517/1: S3C: Fix debug macros for ARM926 output
[ARM] 4516/1: S3C: Fix uncompressor serial output for ARM926
[ARM] 4515/1: S3C: Move uncompress code to plat-s3c
[ARM] 4514/1: S3C: Rename DEBUG_S3C2410_PORT and DEBUG_S3C_UART
[ARM] 4513/1: S3C: Rename CONFIG_S3C2410_LOWLEVEL_UART_PORT
[ARM] 4512/1: S3C: rename the debug macros for per-cpu updates
[ARM] 4511/1: S3C: updated LLSERIAL Kconfig defines for CPU support
[ARM] 4510/1: S3C: split debug-macro support into plat-s3c
[ARM] 4509/1: S3C: Create initial arch/arm/plat-s3c
[ARM] 4508/1: S3C: Move items to include/asm-arm/plat-s3c
[ARM] 4461/1: MXC platform and i.MX31ADS core support
[ARM] 4507/1: pxa2xx clock_event_device
[ARM] 4497/1: Only allow safe cache configurations on ARMv6 and later
...
Diffstat (limited to 'arch/arm/mm/cache-l2x0.c')
| -rw-r--r-- | arch/arm/mm/cache-l2x0.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index 08a36f1b35d..b4e9b734e0b 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -17,6 +17,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/init.h> +#include <linux/spinlock.h> #include <asm/cacheflush.h> #include <asm/io.h> @@ -25,14 +26,19 @@ #define CACHE_LINE_SIZE 32 static void __iomem *l2x0_base; +static DEFINE_SPINLOCK(l2x0_lock); static inline void sync_writel(unsigned long val, unsigned long reg, unsigned long complete_mask) { + unsigned long flags; + + spin_lock_irqsave(&l2x0_lock, flags); writel(val, l2x0_base + reg); /* wait for the operation to complete */ while (readl(l2x0_base + reg) & complete_mask) ; + spin_unlock_irqrestore(&l2x0_lock, flags); } static inline void cache_sync(void) |