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authorBen Skeggs <bskeggs@redhat.com>2015-10-01 14:58:04 +1000
committerBen Skeggs <bskeggs@redhat.com>2015-10-12 13:08:20 +1000
commitec028c26f0ce05a80407748df0ba77a0bff5645a (patch)
treeea3a17a91b36b0b9cd015e91c9b8e00f886622c7
parent7a9db79b7afc6b1363f0bc0a02a49b3c1292bc54 (diff)
downloadnouveau-ec028c26f0ce05a80407748df0ba77a0bff5645a.tar.gz
WIPpmu/gk104: check fuse to determine presence of PGOB
Not 100% confirmed, but seems to match from the few boards I've looked at so far. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
-rw-r--r--drm/nouveau/nvkm/subdev/pmu/gk104.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drm/nouveau/nvkm/subdev/pmu/gk104.c b/drm/nouveau/nvkm/subdev/pmu/gk104.c
index e33f5c03b..d942fa7b9 100644
--- a/drm/nouveau/nvkm/subdev/pmu/gk104.c
+++ b/drm/nouveau/nvkm/subdev/pmu/gk104.c
@@ -27,6 +27,7 @@
#include "fuc/gf119.fuc4.h"
#include <core/option.h>
+#include <subdev/fuse.h>
#include <subdev/timer.h>
static void
@@ -57,6 +58,9 @@ gk104_pmu_pgob(struct nvkm_pmu *pmu, bool enable)
{
struct nvkm_device *device = pmu->subdev.device;
+ if (!(nvkm_fuse_read(device->fuse, 0x31c) & 0x00000001))
+ return;
+
nvkm_mask(device, 0x000200, 0x00001000, 0x00000000);
nvkm_rd32(device, 0x000200);
nvkm_mask(device, 0x000200, 0x08000000, 0x08000000);