From: Jack Steiner Fix bugs related to module unload of the GRU driver. Signed-off-by: Jack Steiner --- drivers/misc/sgi-gru/grufile.c | 5 ++++- drivers/misc/sgi-gru/grukservices.c | 19 +++++++++++++++++++ drivers/misc/sgi-gru/grutables.h | 1 + 3 files changed, 24 insertions(+), 1 deletion(-) Index: linux/drivers/misc/sgi-gru/grufile.c =================================================================== --- linux.orig/drivers/misc/sgi-gru/grufile.c 2009-01-21 12:53:18.000000000 -0600 +++ linux/drivers/misc/sgi-gru/grufile.c 2009-01-21 12:53:19.000000000 -0600 @@ -452,7 +452,7 @@ 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); @@ -462,6 +462,9 @@ 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); Index: linux/drivers/misc/sgi-gru/grukservices.c =================================================================== --- linux.orig/drivers/misc/sgi-gru/grukservices.c 2009-01-21 12:53:17.000000000 -0600 +++ linux/drivers/misc/sgi-gru/grukservices.c 2009-01-21 12:53:24.000000000 -0600 @@ -690,3 +690,22 @@ int gru_kservices_init(struct gru_state 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); +} + Index: linux/drivers/misc/sgi-gru/grutables.h =================================================================== --- linux.orig/drivers/misc/sgi-gru/grutables.h 2009-01-21 12:53:18.000000000 -0600 +++ linux/drivers/misc/sgi-gru/grutables.h 2009-01-21 12:53:24.000000000 -0600 @@ -600,6 +600,7 @@ extern void gru_unload_context(struct gr 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); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/