Resguardo inicial

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/fuse/Kbuild

@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: MIT
+nvkm-y += nvkm/subdev/fuse/base.o
+nvkm-y += nvkm/subdev/fuse/nv50.o
+nvkm-y += nvkm/subdev/fuse/gf100.o
+nvkm-y += nvkm/subdev/fuse/gm107.o

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/fuse/base.c

@@ -0,0 +1,54 @@
+/*
+ * Copyright 2014 Martin Peres
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Martin Peres
+ */
+#include "priv.h"
+
+u32
+nvkm_fuse_read(struct nvkm_fuse *fuse, u32 addr)
+{
+	return fuse->func->read(fuse, addr);
+}
+
+static void *
+nvkm_fuse_dtor(struct nvkm_subdev *subdev)
+{
+	return nvkm_fuse(subdev);
+}
+
+static const struct nvkm_subdev_func
+nvkm_fuse = {
+	.dtor = nvkm_fuse_dtor,
+};
+
+int
+nvkm_fuse_new_(const struct nvkm_fuse_func *func, struct nvkm_device *device,
+	       enum nvkm_subdev_type type, int inst, struct nvkm_fuse **pfuse)
+{
+	struct nvkm_fuse *fuse;
+	if (!(fuse = *pfuse = kzalloc_obj(*fuse)))
+		return -ENOMEM;
+	nvkm_subdev_ctor(&nvkm_fuse, device, type, inst, &fuse->subdev);
+	fuse->func = func;
+	spin_lock_init(&fuse->lock);
+	return 0;
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/fuse/gf100.c

@@ -0,0 +1,54 @@
+/*
+ * Copyright 2014 Martin Peres
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Martin Peres
+ */
+#include "priv.h"
+
+static u32
+gf100_fuse_read(struct nvkm_fuse *fuse, u32 addr)
+{
+	struct nvkm_device *device = fuse->subdev.device;
+	unsigned long flags;
+	u32 fuse_enable, unk, val;
+
+	/* racy if another part of nvkm start writing to these regs */
+	spin_lock_irqsave(&fuse->lock, flags);
+	fuse_enable = nvkm_mask(device, 0x022400, 0x800, 0x800);
+	unk = nvkm_mask(device, 0x021000, 0x1, 0x1);
+	val = nvkm_rd32(device, 0x021100 + addr);
+	nvkm_wr32(device, 0x021000, unk);
+	nvkm_wr32(device, 0x022400, fuse_enable);
+	spin_unlock_irqrestore(&fuse->lock, flags);
+	return val;
+}
+
+static const struct nvkm_fuse_func
+gf100_fuse = {
+	.read = gf100_fuse_read,
+};
+
+int
+gf100_fuse_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+	       struct nvkm_fuse **pfuse)
+{
+	return nvkm_fuse_new_(&gf100_fuse, device, type, inst, pfuse);
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/fuse/gm107.c

@@ -0,0 +1,48 @@
+/*
+ * Copyright 2014 Martin Peres
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Martin Peres
+ */
+#include "priv.h"
+
+#include <subdev/gsp.h>
+
+static u32
+gm107_fuse_read(struct nvkm_fuse *fuse, u32 addr)
+{
+	struct nvkm_device *device = fuse->subdev.device;
+	return nvkm_rd32(device, 0x021100 + addr);
+}
+
+static const struct nvkm_fuse_func
+gm107_fuse = {
+	.read = gm107_fuse_read,
+};
+
+int
+gm107_fuse_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+	       struct nvkm_fuse **pfuse)
+{
+	if (nvkm_gsp_rm(device->gsp))
+		return -ENODEV;
+
+	return nvkm_fuse_new_(&gm107_fuse, device, type, inst, pfuse);
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/fuse/nv50.c

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2014 Martin Peres
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Martin Peres
+ */
+#include "priv.h"
+
+static u32
+nv50_fuse_read(struct nvkm_fuse *fuse, u32 addr)
+{
+	struct nvkm_device *device = fuse->subdev.device;
+	unsigned long flags;
+	u32 fuse_enable, val;
+
+	/* racy if another part of nvkm start writing to this reg */
+	spin_lock_irqsave(&fuse->lock, flags);
+	fuse_enable = nvkm_mask(device, 0x001084, 0x800, 0x800);
+	val = nvkm_rd32(device, 0x021000 + addr);
+	nvkm_wr32(device, 0x001084, fuse_enable);
+	spin_unlock_irqrestore(&fuse->lock, flags);
+	return val;
+}
+
+static const struct nvkm_fuse_func
+nv50_fuse = {
+	.read = &nv50_fuse_read,
+};
+
+int
+nv50_fuse_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+	      struct nvkm_fuse **pfuse)
+{
+	return nvkm_fuse_new_(&nv50_fuse, device, type, inst, pfuse);
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/fuse/priv.h

@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: MIT */
+#ifndef __NVKM_FUSE_PRIV_H__
+#define __NVKM_FUSE_PRIV_H__
+#define nvkm_fuse(p) container_of((p), struct nvkm_fuse, subdev)
+#include <subdev/fuse.h>
+
+struct nvkm_fuse_func {
+	u32 (*read)(struct nvkm_fuse *, u32 addr);
+};
+
+int nvkm_fuse_new_(const struct nvkm_fuse_func *, struct nvkm_device *, enum nvkm_subdev_type, int,
+		   struct nvkm_fuse **);
+#endif