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gru: add user request to explicitly unload a gru context

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Add user function to explicitly unload GRU kernel contexts from the GRU.
Only contexts that are not in-use will be unloaded.

This function is primarily for testing.  It is not expected that this will
be used in normal production systems.

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>
This commit is contained in:
Jack Steiner
2009-06-17 16:28:28 -07:00
committed by Linus Torvalds
parent 1a2c09e3b4
commit d5826dd600
3 changed files with 41 additions and 28 deletions
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4
drivers/misc/sgi-gru/grutables.h
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@@ -638,8 +638,8 @@ extern void gru_unload_context(struct gru_thread_state *gts, int savestate);
extern int gru_update_cch(struct gru_thread_state *gts, int force_unload);
extern void gts_drop(struct gru_thread_state *gts);
extern void gru_tgh_flush_init(struct gru_state *gru);
extern int gru_kservices_init(struct gru_state *gru);
extern void gru_kservices_exit(struct gru_state *gru);
extern int gru_kservices_init(void);
extern void gru_kservices_exit(void);
extern int gru_dump_chiplet_request(unsigned long arg);
extern irqreturn_t gru_intr(int irq, void *dev_id);
extern int gru_handle_user_call_os(unsigned long address);