gru: add user request to explicitly unload a gru context

[pandora-kernel.git] / drivers / misc / sgi-gru / grufile.c

diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
index bfc88d1..e22012d 100644 (file)
--- a/drivers/misc/sgi-gru/grufile.c
+++ b/drivers/misc/sgi-gru/grufile.c
@@ -287,7 +287,6 @@ static void gru_init_chiplet(struct gru_state *gru, unsigned long paddr,
        gru_dbg(grudev, "bid %d, nid %d, gid %d, vaddr %p (0x%lx)\n",
                bid, nid, gru->gs_gid, gru->gs_gru_base_vaddr,
                gru->gs_gru_base_paddr);
-       gru_kservices_init(gru);
 }
 
 static int gru_init_tables(unsigned long gru_base_paddr, void *gru_base_vaddr)
@@ -314,6 +313,7 @@ static int gru_init_tables(unsigned long gru_base_paddr, void *gru_base_vaddr)
                memset(gru_base[bid], 0, sizeof(struct gru_blade_state));
                gru_base[bid]->bs_lru_gru = &gru_base[bid]->bs_grus[0];
                spin_lock_init(&gru_base[bid]->bs_lock);
+               init_rwsem(&gru_base[bid]->bs_kgts_sema);
 
                dsrbytes = 0;
                cbrs = 0;
@@ -426,6 +426,7 @@ static int __init gru_init(void)
                printk(KERN_ERR "%s: init tables failed\n", GRU_DRIVER_ID_STR);
                goto exit3;
        }
+       gru_kservices_init();
 
        printk(KERN_INFO "%s: v%s\n", GRU_DRIVER_ID_STR,
               GRU_DRIVER_VERSION_STR);
@@ -444,7 +445,7 @@ exit1:
 
 static void __exit gru_exit(void)
 {
-       int i, bid, gid;
+       int i, bid;
        int order = get_order(sizeof(struct gru_state) *
                              GRU_CHIPLETS_PER_BLADE);
 
@@ -453,10 +454,7 @@ 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));
-
+       gru_kservices_exit();
        for (bid = 0; bid < GRU_MAX_BLADES; bid++)
                free_pages((unsigned long)gru_base[bid], order);