diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-22 21:12:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-22 21:12:27 -0700 |
| commit | 7f3883962870dd28b5f2322ac44a9d03640ef448 (patch) | |
| tree | 01f7dd2ac2b7c61e5e6726c4fec4484aaca6e7b7 /arch/blackfin/kernel/sys_bfin.c | |
| parent | 10f2a2b0f68abf39c06cf519cbc1740fa50f900b (diff) | |
| parent | b9ac41e314f0b43641bc01bd553fd2e0458ed832 (diff) | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (47 commits)
Blackfin: bfin_spi.h: add MMR peripheral layout
Blackfin: bfin_ppi.h: start a common PPI/EPPI header
Blackfin: bfin_can.h: add missing VERSION/VERSION2 MMRs
Blackfin: bf538: add missing SIC_RVECT define
Blackfin: bf561: rewrite SICA_xxx to just SIC_xxx
Blackfin: bf54x: add missing SIC_RVECT definition
Blackfin: H8606: move 8250 irqflags to platform resources
Blackfin: glue XIP/ROM kernel kconfigs
Blackfin: update sparse flags for latest upstream changes
Blackfin: coreb: update ioctl numbers
Blackfin: coreb: add gpl module license
Blackfin: bf518-ezkit: add ssm2603 codec resources
Blackfin: bf51x/bf52x: fix 16/32bit SPORT MMR helpers
Blackfin: tll6527m: new board port
Blackfin: bf526-ezbrd/bf527-ezkit: add NAND partition for u-boot
Blackfin: merge kernel init memory back into main memory region
Blackfin: gpio: add peripheral group check
Blackfin: dma: bf54x: add missing break for SPORT1 TX IRQ
Blackfin: add new cacheflush syscall
Blackfin: bf548-ezkit: increase u-boot partition size
...
Diffstat (limited to 'arch/blackfin/kernel/sys_bfin.c')
| -rw-r--r-- | arch/blackfin/kernel/sys_bfin.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/sys_bfin.c b/arch/blackfin/kernel/sys_bfin.c index bdc1e2f0da32..89448ed7065d 100644 --- a/arch/blackfin/kernel/sys_bfin.c +++ b/arch/blackfin/kernel/sys_bfin.c @@ -21,6 +21,8 @@ #include <asm/cacheflush.h> #include <asm/dma.h> +#include <asm/cachectl.h> +#include <asm/ptrace.h> asmlinkage void *sys_sram_alloc(size_t size, unsigned long flags) { @@ -70,3 +72,16 @@ asmlinkage int sys_bfin_spinlock(int *p) return ret; } + +SYSCALL_DEFINE3(cacheflush, unsigned long, addr, unsigned long, len, int, op) +{ + if (is_user_addr_valid(current, addr, len) != 0) + return -EINVAL; + + if (op & DCACHE) + blackfin_dcache_flush_range(addr, addr + len); + if (op & ICACHE) + blackfin_icache_flush_range(addr, addr + len); + + return 0; +} |