| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| 154 | 99.35% | 3 | 75.00% | |
| 1 | 0.65% | 1 | 25.00% | |
| Total | 155 | 4 |
| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Guo Ren | 154 | 99.35% | 3 | 75.00% |
| Junlin Yang | 1 | 0.65% | 1 | 25.00% |
| Total | 155 | 4 |
/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_CSKY_BARRIER_H #define __ASM_CSKY_BARRIER_H #ifndef __ASSEMBLY__ #define nop() asm volatile ("nop\n":::"memory") #ifdef CONFIG_SMP /* * bar.brwarws: ordering barrier for all load/store instructions * before/after * * |31|30 26|25 21|20 16|15 10|9 5|4 0| * 1 10000 00000 00000 100001 00001 0 bw br aw ar * * b: before * a: after * r: read * w: write * * Here are all combinations: * * bar.brw * bar.br * bar.bw * bar.arw * bar.ar * bar.aw * bar.brwarw * bar.brarw * bar.bwarw * bar.brwar * bar.brwaw * bar.brar * bar.bwaw */ #define FULL_FENCE ".long 0x842fc000\n" #define ACQUIRE_FENCE ".long 0x8427c000\n" #define RELEASE_FENCE ".long 0x842ec000\n" #define __bar_brw() asm volatile (".long 0x842cc000\n":::"memory") #define __bar_br() asm volatile (".long 0x8424c000\n":::"memory") #define __bar_bw() asm volatile (".long 0x8428c000\n":::"memory") #define __bar_arw() asm volatile (".long 0x8423c000\n":::"memory") #define __bar_ar() asm volatile (".long 0x8421c000\n":::"memory") #define __bar_aw() asm volatile (".long 0x8422c000\n":::"memory") #define __bar_brwarw() asm volatile (FULL_FENCE:::"memory") #define __bar_brarw() asm volatile (ACQUIRE_FENCE:::"memory") #define __bar_bwarw() asm volatile (".long 0x842bc000\n":::"memory") #define __bar_brwar() asm volatile (".long 0x842dc000\n":::"memory") #define __bar_brwaw() asm volatile (RELEASE_FENCE:::"memory") #define __bar_brar() asm volatile (".long 0x8425c000\n":::"memory") #define __bar_brar() asm volatile (".long 0x8425c000\n":::"memory") #define __bar_bwaw() asm volatile (".long 0x842ac000\n":::"memory") #define __smp_mb() __bar_brwarw() #define __smp_rmb() __bar_brar() #define __smp_wmb() __bar_bwaw() #define __smp_acquire_fence() __bar_brarw() #define __smp_release_fence() __bar_brwaw() #endif /* CONFIG_SMP */ /* * sync: completion barrier, all sync.xx instructions * guarantee the last response received by bus transaction * made by ld/st instructions before sync.s * sync.s: inherit from sync, but also shareable to other cores * sync.i: inherit from sync, but also flush cpu pipeline * sync.is: the same with sync.i + sync.s */ #define mb() asm volatile ("sync\n":::"memory") #ifdef CONFIG_CPU_HAS_CACHEV2 /* * Using three sync.is to prevent speculative PTW */ #define sync_is() asm volatile ("sync.is\nsync.is\nsync.is\n":::"memory") #endif #include <asm-generic/barrier.h> #endif /* __ASSEMBLY__ */ #endif /* __ASM_CSKY_BARRIER_H */