diff options
Diffstat (limited to 'drivers/staging/ramster/ramster.h')
| -rw-r--r-- | drivers/staging/ramster/ramster.h | 113 |
1 files changed, 27 insertions, 86 deletions
diff --git a/drivers/staging/ramster/ramster.h b/drivers/staging/ramster/ramster.h index 0c9455e8dcd..1b71aea2ff6 100644 --- a/drivers/staging/ramster/ramster.h +++ b/drivers/staging/ramster/ramster.h @@ -1,118 +1,59 @@ + /* - * ramster.h + * zcache/ramster.h * - * Peer-to-peer transcendent memory + * Placeholder to resolve ramster references when !CONFIG_RAMSTER + * Real ramster.h lives in ramster subdirectory. * * Copyright (c) 2009-2012, Dan Magenheimer, Oracle Corp. */ -#ifndef _RAMSTER_H_ -#define _RAMSTER_H_ - -/* - * format of remote pampd: - * bit 0 == intransit - * bit 1 == is_remote... if this bit is set, then - * bit 2-9 == remotenode - * bit 10-22 == size - * bit 23-30 == cksum - */ -#define FAKE_PAMPD_INTRANSIT_BITS 1 -#define FAKE_PAMPD_ISREMOTE_BITS 1 -#define FAKE_PAMPD_REMOTENODE_BITS 8 -#define FAKE_PAMPD_REMOTESIZE_BITS 13 -#define FAKE_PAMPD_CHECKSUM_BITS 8 - -#define FAKE_PAMPD_INTRANSIT_SHIFT 0 -#define FAKE_PAMPD_ISREMOTE_SHIFT (FAKE_PAMPD_INTRANSIT_SHIFT + \ - FAKE_PAMPD_INTRANSIT_BITS) -#define FAKE_PAMPD_REMOTENODE_SHIFT (FAKE_PAMPD_ISREMOTE_SHIFT + \ - FAKE_PAMPD_ISREMOTE_BITS) -#define FAKE_PAMPD_REMOTESIZE_SHIFT (FAKE_PAMPD_REMOTENODE_SHIFT + \ - FAKE_PAMPD_REMOTENODE_BITS) -#define FAKE_PAMPD_CHECKSUM_SHIFT (FAKE_PAMPD_REMOTESIZE_SHIFT + \ - FAKE_PAMPD_REMOTESIZE_BITS) +#ifndef _ZCACHE_RAMSTER_H_ +#define _ZCACHE_RAMSTER_H_ -#define FAKE_PAMPD_MASK(x) ((1UL << (x)) - 1) - -static inline void *pampd_make_remote(int remotenode, size_t size, - unsigned char cksum) +#ifdef CONFIG_RAMSTER +#include "ramster/ramster.h" +#else +static inline void ramster_init(bool x, bool y, bool z) { - unsigned long fake_pampd = 0; - fake_pampd |= 1UL << FAKE_PAMPD_ISREMOTE_SHIFT; - fake_pampd |= ((unsigned long)remotenode & - FAKE_PAMPD_MASK(FAKE_PAMPD_REMOTENODE_BITS)) << - FAKE_PAMPD_REMOTENODE_SHIFT; - fake_pampd |= ((unsigned long)size & - FAKE_PAMPD_MASK(FAKE_PAMPD_REMOTESIZE_BITS)) << - FAKE_PAMPD_REMOTESIZE_SHIFT; - fake_pampd |= ((unsigned long)cksum & - FAKE_PAMPD_MASK(FAKE_PAMPD_CHECKSUM_BITS)) << - FAKE_PAMPD_CHECKSUM_SHIFT; - return (void *)fake_pampd; } -static inline unsigned int pampd_remote_node(void *pampd) +static inline void ramster_register_pamops(struct tmem_pamops *p) { - unsigned long fake_pampd = (unsigned long)pampd; - return (fake_pampd >> FAKE_PAMPD_REMOTENODE_SHIFT) & - FAKE_PAMPD_MASK(FAKE_PAMPD_REMOTENODE_BITS); } -static inline unsigned int pampd_remote_size(void *pampd) +static inline int ramster_remotify_pageframe(bool b) { - unsigned long fake_pampd = (unsigned long)pampd; - return (fake_pampd >> FAKE_PAMPD_REMOTESIZE_SHIFT) & - FAKE_PAMPD_MASK(FAKE_PAMPD_REMOTESIZE_BITS); + return 0; } -static inline unsigned char pampd_remote_cksum(void *pampd) +static inline void *ramster_pampd_free(void *v, struct tmem_pool *p, + struct tmem_oid *o, uint32_t u, bool b) { - unsigned long fake_pampd = (unsigned long)pampd; - return (fake_pampd >> FAKE_PAMPD_CHECKSUM_SHIFT) & - FAKE_PAMPD_MASK(FAKE_PAMPD_CHECKSUM_BITS); + return NULL; } -static inline bool pampd_is_remote(void *pampd) +static inline int ramster_do_preload_flnode(struct tmem_pool *p) { - unsigned long fake_pampd = (unsigned long)pampd; - return (fake_pampd >> FAKE_PAMPD_ISREMOTE_SHIFT) & - FAKE_PAMPD_MASK(FAKE_PAMPD_ISREMOTE_BITS); + return -1; } -static inline bool pampd_is_intransit(void *pampd) +static inline bool pampd_is_remote(void *v) { - unsigned long fake_pampd = (unsigned long)pampd; - return (fake_pampd >> FAKE_PAMPD_INTRANSIT_SHIFT) & - FAKE_PAMPD_MASK(FAKE_PAMPD_INTRANSIT_BITS); + return false; } -/* note that it is a BUG for intransit to be set without isremote also set */ -static inline void *pampd_mark_intransit(void *pampd) +static inline void ramster_count_foreign_pages(bool b, int i) { - unsigned long fake_pampd = (unsigned long)pampd; - - fake_pampd |= 1UL << FAKE_PAMPD_ISREMOTE_SHIFT; - fake_pampd |= 1UL << FAKE_PAMPD_INTRANSIT_SHIFT; - return (void *)fake_pampd; } -static inline void *pampd_mask_intransit_and_remote(void *marked_pampd) +static inline void ramster_cpu_up(int cpu) { - unsigned long pampd = (unsigned long)marked_pampd; - - pampd &= ~(1UL << FAKE_PAMPD_INTRANSIT_SHIFT); - pampd &= ~(1UL << FAKE_PAMPD_ISREMOTE_SHIFT); - return (void *)pampd; } -extern int ramster_remote_async_get(struct tmem_xhandle *, - bool, int, size_t, uint8_t, void *extra); -extern int ramster_remote_put(struct tmem_xhandle *, char *, size_t, - bool, int *); -extern int ramster_remote_flush(struct tmem_xhandle *, int); -extern int ramster_remote_flush_object(struct tmem_xhandle *, int); -extern int r2net_register_handlers(void); -extern int r2net_remote_target_node_set(int); +static inline void ramster_cpu_down(int cpu) +{ +} +#endif -#endif /* _TMEM_H */ +#endif /* _ZCACHE_RAMSTER_H */ |