diff options
Diffstat (limited to 'arch/powerpc/include/asm')
| -rw-r--r-- | arch/powerpc/include/asm/vas.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/vas.h b/arch/powerpc/include/asm/vas.h index 96bc24d61625..033461c17637 100644 --- a/arch/powerpc/include/asm/vas.h +++ b/arch/powerpc/include/asm/vas.h @@ -81,6 +81,29 @@ struct vas_rx_win_attr { }; /* + * Window attributes specified by the in-kernel owner of a send window. + */ +struct vas_tx_win_attr { + enum vas_cop_type cop; + int wcreds_max; + int lpid; + int pidr; /* hardware PID (from SPRN_PID) */ + int pid; /* linux process id */ + int pswid; + int rsvd_txbuf_count; + int tc_mode; + + bool user_win; + bool pin_win; + bool rej_no_credit; + bool rsvd_txbuf_enable; + bool tx_wcred_mode; + bool rx_wcred_mode; + bool tx_win_ord_mode; + bool rx_win_ord_mode; +}; + +/* * Helper to initialize receive window attributes to defaults for an * NX window. */ @@ -96,6 +119,25 @@ struct vas_window *vas_rx_win_open(int vasid, enum vas_cop_type cop, struct vas_rx_win_attr *attr); /* + * Helper to initialize send window attributes to defaults for an NX window. + */ +extern void vas_init_tx_win_attr(struct vas_tx_win_attr *txattr, + enum vas_cop_type cop); + +/* + * Open a VAS send window for the instance of VAS identified by @vasid + * and the co-processor type @cop. Use @attr to initialize attributes + * of the window. + * + * Note: The instance of VAS must already have an open receive window for + * the coprocessor type @cop. + * + * Return a handle to the send window or ERR_PTR() on error. + */ +struct vas_window *vas_tx_win_open(int vasid, enum vas_cop_type cop, + struct vas_tx_win_attr *attr); + +/* * Close the send or receive window identified by @win. For receive windows * return -EAGAIN if there are active send windows attached to this receive * window. |