diff options
author | Jack Steiner <steiner@sgi.com> | 2008-07-29 22:33:55 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-30 09:41:47 -0700 |
commit | 13d19498b0446cad2c394f9fbec8149b44a60c6e (patch) | |
tree | 4bb9820665d8a25d70c28cb48ff8d4edd74e0f6b /drivers/misc/sgi-gru/grulib.h | |
parent | 4c921d4d8aa74140597fd8736261837f73ca6e7a (diff) |
GRU Driver: driver internal header files
This patch contains header files internal to the GRU driver.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/misc/sgi-gru/grulib.h')
-rw-r--r-- | drivers/misc/sgi-gru/grulib.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/drivers/misc/sgi-gru/grulib.h b/drivers/misc/sgi-gru/grulib.h new file mode 100644 index 000000000000..e56e196a6998 --- /dev/null +++ b/drivers/misc/sgi-gru/grulib.h @@ -0,0 +1,97 @@ +/* + * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __GRULIB_H__ +#define __GRULIB_H__ + +#define GRU_BASENAME "gru" +#define GRU_FULLNAME "/dev/gru" +#define GRU_IOCTL_NUM 'G' + +/* + * Maximum number of GRU segments that a user can have open + * ZZZ temp - set high for testing. Revisit. + */ +#define GRU_MAX_OPEN_CONTEXTS 32 + +/* Set Number of Request Blocks */ +#define GRU_CREATE_CONTEXT _IOWR(GRU_IOCTL_NUM, 1, void *) + +/* Register task as using the slice */ +#define GRU_SET_TASK_SLICE _IOWR(GRU_IOCTL_NUM, 5, void *) + +/* Fetch exception detail */ +#define GRU_USER_GET_EXCEPTION_DETAIL _IOWR(GRU_IOCTL_NUM, 6, void *) + +/* For user call_os handling - normally a TLB fault */ +#define GRU_USER_CALL_OS _IOWR(GRU_IOCTL_NUM, 8, void *) + +/* For user unload context */ +#define GRU_USER_UNLOAD_CONTEXT _IOWR(GRU_IOCTL_NUM, 9, void *) + +/* For fetching GRU chiplet status */ +#define GRU_GET_CHIPLET_STATUS _IOWR(GRU_IOCTL_NUM, 10, void *) + +/* For user TLB flushing (primarily for tests) */ +#define GRU_USER_FLUSH_TLB _IOWR(GRU_IOCTL_NUM, 50, void *) + +/* Get some config options (primarily for tests & emulator) */ +#define GRU_GET_CONFIG_INFO _IOWR(GRU_IOCTL_NUM, 51, void *) + +#define CONTEXT_WINDOW_BYTES(th) (GRU_GSEG_PAGESIZE * (th)) +#define THREAD_POINTER(p, th) (p + GRU_GSEG_PAGESIZE * (th)) + +/* + * Structure used to pass TLB flush parameters to the driver + */ +struct gru_create_context_req { + unsigned long gseg; + unsigned int data_segment_bytes; + unsigned int control_blocks; + unsigned int maximum_thread_count; + unsigned int options; +}; + +/* + * Structure used to pass unload context parameters to the driver + */ +struct gru_unload_context_req { + unsigned long gseg; +}; + +/* + * Structure used to pass TLB flush parameters to the driver + */ +struct gru_flush_tlb_req { + unsigned long gseg; + unsigned long vaddr; + size_t len; +}; + +/* + * GRU configuration info (temp - for testing) + */ +struct gru_config_info { + int cpus; + int blades; + int nodes; + int chiplets; + int fill[16]; +}; + +#endif /* __GRULIB_H__ */ |