drm/nouveau/pmu: rename from pwr (no binary change)

Switch to NVIDIA's name for the device.

The namespace of NVKM is being changed to nvkm_ instead of nouveau_,
which will be used for the DRM part of the driver.  This is being
done in order to make it very clear as to what part of the driver a
given symbol belongs to, and as a minor step towards splitting the
DRM driver out to be able to stand on its own (for virt).

Because there's already a large amount of churn here anyway, this is
as good a time as any to also switch to NVIDIA's device and chipset
naming to ease collaboration with them.

A comparison of objdump disassemblies proves no code changes.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 57 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/pmu.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/pmu.h
new file mode 100644
index 000000000000..c890a4fb3cbb
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/pmu.h
@@ -0,0 +1,57 @@
+#ifndef __NOUVEAU_PMU_H__
+#define __NOUVEAU_PMU_H__
+
+#include <core/subdev.h>
+#include <core/device.h>
+
+struct nouveau_pmu {
+	struct nouveau_subdev base;
+
+	struct {
+		u32 base;
+		u32 size;
+	} send;
+
+	struct {
+		u32 base;
+		u32 size;
+
+		struct work_struct work;
+		wait_queue_head_t wait;
+		u32 process;
+		u32 message;
+		u32 data[2];
+	} recv;
+
+	int  (*message)(struct nouveau_pmu *, u32[2], u32, u32, u32, u32);
+	void (*pgob)(struct nouveau_pmu *, bool);
+};
+
+static inline struct nouveau_pmu *
+nouveau_pmu(void *obj)
+{
+	return (void *)nouveau_subdev(obj, NVDEV_SUBDEV_PMU);
+}
+
+extern struct nouveau_oclass *nva3_pmu_oclass;
+extern struct nouveau_oclass *nvc0_pmu_oclass;
+extern struct nouveau_oclass *nvd0_pmu_oclass;
+extern struct nouveau_oclass *gk104_pmu_oclass;
+extern struct nouveau_oclass *nv108_pmu_oclass;
+extern struct nouveau_oclass *gk20a_pmu_oclass;
+
+/* interface to MEMX process running on PMU */
+struct nouveau_memx;
+int  nouveau_memx_init(struct nouveau_pmu *, struct nouveau_memx **);
+int  nouveau_memx_fini(struct nouveau_memx **, bool exec);
+void nouveau_memx_wr32(struct nouveau_memx *, u32 addr, u32 data);
+void nouveau_memx_wait(struct nouveau_memx *,
+		       u32 addr, u32 mask, u32 data, u32 nsec);
+void nouveau_memx_nsec(struct nouveau_memx *, u32 nsec);
+void nouveau_memx_wait_vblank(struct nouveau_memx *);
+void nouveau_memx_train(struct nouveau_memx *);
+int  nouveau_memx_train_result(struct nouveau_pmu *, u32 *, int);
+void nouveau_memx_block(struct nouveau_memx *);
+void nouveau_memx_unblock(struct nouveau_memx *);
+
+#endif