From eec9ffe47f60db8e2ff96b49939d4c2b1be2c36f Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Tue, 12 Feb 2019 22:28:13 +1000
Subject: [PATCH] drm/nouveau/top: add function to lookup PRI address for
devices
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>
---
.../gpu/drm/nouveau/include/nvkm/subdev/top.h | 1 +
drivers/gpu/drm/nouveau/nvkm/subdev/top/base.c | 16 ++++++++++++++++
2 files changed, 17 insertions(+)
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/top.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/top.h
index f7d3eb647e2ea..2904e67d79d25 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/top.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/top.h
@@ -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);
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/top/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/top/base.c
index 67ada1d9a28c3..cce6e4e90ebf8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/top/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/top/base.c
@@ -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)
{
--
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