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| author | Jack Steiner <steiner@sgi.com> | 2009-04-02 16:59:11 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-02 19:05:07 -0700 |
| commit | 27ca8a7b2bdfb3e22e67fbd5df58e6b6f0bbcd48 (patch) | |
| tree | c7fbe657ba4d31b1977b7247dd7626414246a1c3 /drivers/misc | |
| parent | e1c3219d06447dab8a87b96df1211d158e21071e (diff) | |
| download | linux-27ca8a7b2bdfb3e22e67fbd5df58e6b6f0bbcd48.tar.gz linux-27ca8a7b2bdfb3e22e67fbd5df58e6b6f0bbcd48.tar.bz2 linux-27ca8a7b2bdfb3e22e67fbd5df58e6b6f0bbcd48.zip | |
sgi-gru: fix bugs related to module unload of the GRU driver
Fix bugs related to module unload of 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')
| -rw-r--r-- | drivers/misc/sgi-gru/grufile.c | 5 | ||||
| -rw-r--r-- | drivers/misc/sgi-gru/grukservices.c | 19 | ||||
| -rw-r--r-- | drivers/misc/sgi-gru/grutables.h | 1 |
3 files changed, 24 insertions, 1 deletions
diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c index b7a21ce91496..3e6e42d2f01b 100644 --- a/drivers/misc/sgi-gru/grufile.c +++ b/drivers/misc/sgi-gru/grufile.c @@ -440,7 +440,7 @@ exit1: static void __exit gru_exit(void) { - int i, bid; + int i, bid, gid; int order = get_order(sizeof(struct gru_state) * GRU_CHIPLETS_PER_BLADE); @@ -450,6 +450,9 @@ static void __exit gru_exit(void) for (i = 0; i < GRU_CHIPLETS_PER_BLADE; i++) free_irq(IRQ_GRU + i, NULL); + foreach_gid(gid) + gru_kservices_exit(GID_TO_GRU(gid)); + for (bid = 0; bid < GRU_MAX_BLADES; bid++) free_pages((unsigned long)gru_base[bid], order); diff --git a/drivers/misc/sgi-gru/grukservices.c b/drivers/misc/sgi-gru/grukservices.c index a37128431155..6b1efe447274 100644 --- a/drivers/misc/sgi-gru/grukservices.c +++ b/drivers/misc/sgi-gru/grukservices.c @@ -690,3 +690,22 @@ int gru_kservices_init(struct gru_state *gru) quicktest(gru); return 0; } + +void gru_kservices_exit(struct gru_state *gru) +{ + struct gru_context_configuration_handle *cch; + struct gru_blade_state *bs; + + bs = gru->gs_blade; + if (gru != &bs->bs_grus[1]) + return; + + cch = get_cch(gru->gs_gru_base_vaddr, KERNEL_CTXNUM); + lock_cch_handle(cch); + if (cch_interrupt_sync(cch)) + BUG(); + if (cch_deallocate(cch)) + BUG(); + unlock_cch_handle(cch); +} + diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h index c6e0e3de07f3..8e5c8e5bb533 100644 --- a/drivers/misc/sgi-gru/grutables.h +++ b/drivers/misc/sgi-gru/grutables.h @@ -600,6 +600,7 @@ extern void gru_unload_context(struct gru_thread_state *gts, int savestate); 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 irqreturn_t gru_intr(int irq, void *dev_id); extern int gru_handle_user_call_os(unsigned long address); extern int gru_user_flush_tlb(unsigned long arg); |