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authorJack Steiner <steiner@sgi.com>2008-10-16 09:05:13 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-16 22:21:51 +0400
commit923f7f6970bd448b8e88b9e4be10fd01fc7106a4 (patch)
tree5e9f5646f547eaa345068f177815ebadd6a95454 /drivers/misc/sgi-gru/grufile.c
parentebf3f09c634906d371f2bfd71b41c7e0c52efe7e (diff)
downloadlinux-923f7f6970bd448b8e88b9e4be10fd01fc7106a4.tar.xz
GRU driver: minor updates
A few minor updates for the GRU driver. - documentation changes found in code reviews - changes to #ifdefs to make them recognized by "unifdef" (used in simulator testing) - change GRU context load/unload to prefetch data [akpm@linux-foundation.org: fix typo in comment] 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/grufile.c')
-rw-r--r--drivers/misc/sgi-gru/grufile.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
index d61cee796efd..5c027b6b4e5a 100644
--- a/drivers/misc/sgi-gru/grufile.c
+++ b/drivers/misc/sgi-gru/grufile.c
@@ -113,7 +113,7 @@ static int gru_file_mmap(struct file *file, struct vm_area_struct *vma)
return -EPERM;
if (vma->vm_start & (GRU_GSEG_PAGESIZE - 1) ||
- vma->vm_end & (GRU_GSEG_PAGESIZE - 1))
+ vma->vm_end & (GRU_GSEG_PAGESIZE - 1))
return -EINVAL;
vma->vm_flags |=
@@ -398,6 +398,12 @@ static int __init gru_init(void)
irq = get_base_irq();
for (chip = 0; chip < GRU_CHIPLETS_PER_BLADE; chip++) {
ret = request_irq(irq + chip, gru_intr, 0, id, NULL);
+ /* TODO: fix irq handling on x86. For now ignore failures because
+ * interrupts are not required & not yet fully supported */
+ if (ret) {
+ printk("!!!WARNING: GRU ignoring request failure!!!\n");
+ ret = 0;
+ }
if (ret) {
printk(KERN_ERR "%s: request_irq failed\n",
GRU_DRIVER_ID_STR);