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authorBen Skeggs <bskeggs@redhat.com>2017-01-18 14:57:01 +1000
committerBen Skeggs <bskeggs@redhat.com>2017-02-17 17:38:11 +1000
commit13416077e54354df19d3a4f98e574cce451cec2d (patch)
treec667c7af1eb667ac55e3dfbc437c71f5ae99f68a /drivers/gpu/drm
parent6845c313f79fd44c64834b98d4341187e77b2377 (diff)
drm/nouveau/top: add function to translate subdev index to mmu fault id
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/nouveau/include/nvkm/subdev/top.h1
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/top/base.c14
2 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/top.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/top.h
index 71ebbfd4484f..d23209b62c25 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/top.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/top.h
@@ -11,6 +11,7 @@ struct nvkm_top {
u32 nvkm_top_reset(struct nvkm_device *, enum nvkm_devidx);
u32 nvkm_top_intr(struct nvkm_device *, u32 intr, u64 *subdevs);
u32 nvkm_top_intr_mask(struct nvkm_device *, enum nvkm_devidx);
+int nvkm_top_fault_id(struct nvkm_device *, enum nvkm_devidx);
enum nvkm_devidx nvkm_top_fault(struct nvkm_device *, int fault);
enum nvkm_devidx nvkm_top_engine(struct nvkm_device *, int, int *runl, int *engn);
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/top/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/top/base.c
index fe063d5728e2..67ada1d9a28c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/top/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/top/base.c
@@ -95,6 +95,20 @@ nvkm_top_intr(struct nvkm_device *device, u32 intr, u64 *psubdevs)
return intr & ~handled;
}
+int
+nvkm_top_fault_id(struct nvkm_device *device, enum nvkm_devidx devidx)
+{
+ struct nvkm_top *top = device->top;
+ struct nvkm_top_device *info;
+
+ list_for_each_entry(info, &top->device, head) {
+ if (info->index == devidx && info->fault >= 0)
+ return info->fault;
+ }
+
+ return -ENOENT;
+}
+
enum nvkm_devidx
nvkm_top_fault(struct nvkm_device *device, int fault)
{