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authorXia Yang <xiay@nvidia.com>2016-02-25 17:59:08 +0900
committerBen Skeggs <bskeggs@redhat.com>2016-02-26 09:10:12 +1000
commit4e404e403fdb54cd27002b84194609f446355bb8 (patch)
tree188813d666fd9c81e7ace8a65cc9dd0d4e32be7b
parenta1b10673ecfcb2ef156a90502dce4ce8a55924f6 (diff)
downloadnouveau-4e404e403fdb54cd27002b84194609f446355bb8.tar.gz
fifo/gk104: fix chid bit mask
Fix the channel id bit mask in FIFO schedule timeout error handling. FIFO_ENGINE_STATUS_NEXT_ID is bit 27:16 thus 0x0fff0000. FIFO_ENGINE_STATUS_ID is bit 11:0 thus 0x00000fff. Signed-off-by: Xia Yang <xiay@nvidia.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
-rw-r--r--drm/nouveau/nvkm/engine/fifo/gk104.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drm/nouveau/nvkm/engine/fifo/gk104.c b/drm/nouveau/nvkm/engine/fifo/gk104.c
index 4fcd147d4..d6a88cf67 100644
--- a/drm/nouveau/nvkm/engine/fifo/gk104.c
+++ b/drm/nouveau/nvkm/engine/fifo/gk104.c
@@ -198,11 +198,11 @@ gk104_fifo_intr_sched_ctxsw(struct gk104_fifo *fifo)
for (engn = 0; engn < ARRAY_SIZE(fifo->engine); engn++) {
u32 stat = nvkm_rd32(device, 0x002640 + (engn * 0x08));
u32 busy = (stat & 0x80000000);
- u32 next = (stat & 0x07ff0000) >> 16;
+ u32 next = (stat & 0x0fff0000) >> 16;
u32 chsw = (stat & 0x00008000);
u32 save = (stat & 0x00004000);
u32 load = (stat & 0x00002000);
- u32 prev = (stat & 0x000007ff);
+ u32 prev = (stat & 0x00000fff);
u32 chid = load ? next : prev;
(void)save;