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drm/nouveau/top: add function to lookup PRI address for devices

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Will be using this in upcoming changes to avoid the need for entirely
new subdevs to deal with Turing register moves.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2019-02-12 22:28:13 +10:00
parent 78cdadb840
commit eec9ffe47f
2 changed files with 17 additions and 0 deletions
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1
drivers/gpu/drm/nouveau/include/nvkm/subdev/top.h
View file

@ -9,6 +9,7 @@ struct nvkm_top {
struct list_head device;
};
u32 nvkm_top_addr(struct nvkm_device *, enum nvkm_devidx);
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);

16
drivers/gpu/drm/nouveau/nvkm/subdev/top/base.c
View file

@ -40,6 +40,22 @@ nvkm_top_device_new(struct nvkm_top *top)
return info;
}
u32
nvkm_top_addr(struct nvkm_device *device, enum nvkm_devidx index)
{
struct nvkm_top *top = device->top;
struct nvkm_top_device *info;
if (top) {
list_for_each_entry(info, &top->device, head) {
if (info->index == index)
return info->addr;
}
}
return 0;
}
u32
nvkm_top_reset(struct nvkm_device *device, enum nvkm_devidx index)
{