drm/nouveau/pci: new subdev

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

8 files changed, 362 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/Kbuild b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/Kbuild
new file mode 100644
index 000000000000..a8e9b0fc447e
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/Kbuild
@@ -0,0 +1,6 @@
+nvkm-y += nvkm/subdev/pci/base.o
+nvkm-y += nvkm/subdev/pci/nv04.o
+nvkm-y += nvkm/subdev/pci/nv40.o
+nvkm-y += nvkm/subdev/pci/nv4c.o
+nvkm-y += nvkm/subdev/pci/nv50.o
+nvkm-y += nvkm/subdev/pci/gf100.o
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c
new file mode 100644
index 000000000000..6a742659a901
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * 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: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include "priv.h"
+
+u32
+nvkm_pci_rd32(struct nvkm_pci *pci, u16 addr)
+{
+	return pci->func->rd32(pci, addr);
+}
+
+void
+nvkm_pci_wr08(struct nvkm_pci *pci, u16 addr, u8 data)
+{
+	pci->func->wr08(pci, addr, data);
+}
+
+void
+nvkm_pci_wr32(struct nvkm_pci *pci, u16 addr, u32 data)
+{
+	pci->func->wr32(pci, addr, data);
+}
+
+void
+nvkm_pci_rom_shadow(struct nvkm_pci *pci, bool shadow)
+{
+	u32 data = nvkm_pci_rd32(pci, 0x0050);
+	if (shadow)
+		data |=  0x00000001;
+	else
+		data &= ~0x00000001;
+	nvkm_pci_wr32(pci, 0x0050, data);
+}
+
+void
+nvkm_pci_msi_rearm(struct nvkm_pci *pci)
+{
+	pci->func->msi_rearm(pci);
+}
+
+static void *
+nvkm_pci_dtor(struct nvkm_subdev *subdev)
+{
+	return nvkm_pci(subdev);
+}
+
+static const struct nvkm_subdev_func
+nvkm_pci_func = {
+	.dtor = nvkm_pci_dtor,
+};
+
+int
+nvkm_pci_new_(const struct nvkm_pci_func *func, struct nvkm_device *device,
+	      int index, struct nvkm_pci **ppci)
+{
+	struct nvkm_pci *pci;
+	if (!(pci = *ppci = kzalloc(sizeof(**ppci), GFP_KERNEL)))
+		return -ENOMEM;
+	nvkm_subdev_ctor(&nvkm_pci_func, device, index, 0, &pci->subdev);
+	pci->func = func;
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/gf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/gf100.c
new file mode 100644
index 000000000000..86f8226532d3
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/gf100.c
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * 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: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include "priv.h"
+
+static void
+gf100_pci_msi_rearm(struct nvkm_pci *pci)
+{
+	nvkm_pci_wr08(pci, 0x0704, 0xff);
+}
+
+static const struct nvkm_pci_func
+gf100_pci_func = {
+	.rd32 = nv40_pci_rd32,
+	.wr08 = nv40_pci_wr08,
+	.wr32 = nv40_pci_wr32,
+	.msi_rearm = gf100_pci_msi_rearm,
+};
+
+int
+gf100_pci_new(struct nvkm_device *device, int index, struct nvkm_pci **ppci)
+{
+	return nvkm_pci_new_(&gf100_pci_func, device, index, ppci);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/nv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/nv04.c
new file mode 100644
index 000000000000..5b1ed42cb90b
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/nv04.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * 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: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include "priv.h"
+
+static u32
+nv04_pci_rd32(struct nvkm_pci *pci, u16 addr)
+{
+	struct nvkm_device *device = pci->subdev.device;
+	return nvkm_rd32(device, 0x001800 + addr);
+}
+
+static void
+nv04_pci_wr08(struct nvkm_pci *pci, u16 addr, u8 data)
+{
+	struct nvkm_device *device = pci->subdev.device;
+	nvkm_wr08(device, 0x001800 + addr, data);
+}
+
+static void
+nv04_pci_wr32(struct nvkm_pci *pci, u16 addr, u32 data)
+{
+	struct nvkm_device *device = pci->subdev.device;
+	nvkm_wr32(device, 0x001800 + addr, data);
+}
+
+static const struct nvkm_pci_func
+nv04_pci_func = {
+	.rd32 = nv04_pci_rd32,
+	.wr08 = nv04_pci_wr08,
+	.wr32 = nv04_pci_wr32,
+};
+
+int
+nv04_pci_new(struct nvkm_device *device, int index, struct nvkm_pci **ppci)
+{
+	return nvkm_pci_new_(&nv04_pci_func, device, index, ppci);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/nv40.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/nv40.c
new file mode 100644
index 000000000000..090a187f165f
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/nv40.c
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * 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: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include "priv.h"
+
+u32
+nv40_pci_rd32(struct nvkm_pci *pci, u16 addr)
+{
+	struct nvkm_device *device = pci->subdev.device;
+	return nvkm_rd32(device, 0x088000 + addr);
+}
+
+void
+nv40_pci_wr08(struct nvkm_pci *pci, u16 addr, u8 data)
+{
+	struct nvkm_device *device = pci->subdev.device;
+	nvkm_wr08(device, 0x088000 + addr, data);
+}
+
+void
+nv40_pci_wr32(struct nvkm_pci *pci, u16 addr, u32 data)
+{
+	struct nvkm_device *device = pci->subdev.device;
+	nvkm_wr32(device, 0x088000 + addr, data);
+}
+
+static void
+nv40_pci_msi_rearm(struct nvkm_pci *pci)
+{
+	nvkm_pci_wr08(pci, 0x0068, 0xff);
+}
+
+static const struct nvkm_pci_func
+nv40_pci_func = {
+	.rd32 = nv40_pci_rd32,
+	.wr08 = nv40_pci_wr08,
+	.wr32 = nv40_pci_wr32,
+	.msi_rearm = nv40_pci_msi_rearm,
+};
+
+int
+nv40_pci_new(struct nvkm_device *device, int index, struct nvkm_pci **ppci)
+{
+	return nvkm_pci_new_(&nv40_pci_func, device, index, ppci);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/nv4c.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/nv4c.c
new file mode 100644
index 000000000000..1f1b26b5fa72
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/nv4c.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * 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: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include "priv.h"
+
+static const struct nvkm_pci_func
+nv4c_pci_func = {
+	.rd32 = nv40_pci_rd32,
+	.wr08 = nv40_pci_wr08,
+	.wr32 = nv40_pci_wr32,
+};
+
+int
+nv4c_pci_new(struct nvkm_device *device, int index, struct nvkm_pci **ppci)
+{
+	return nvkm_pci_new_(&nv4c_pci_func, device, index, ppci);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/nv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/nv50.c
new file mode 100644
index 000000000000..3e167d4a381f
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/nv50.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * 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: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include "priv.h"
+
+#include <core/pci.h>
+
+/* MSI re-arm through the PRI appears to be broken on the original G80,
+ * so we access it via alternate PCI config space mechanisms.
+ */
+static void
+nv50_pci_msi_rearm(struct nvkm_pci *pci)
+{
+	struct nvkm_device *device = pci->subdev.device;
+	struct pci_dev *pdev = device->func->pci(device)->pdev;
+	pci_write_config_byte(pdev, 0x68, 0xff);
+}
+
+static const struct nvkm_pci_func
+nv50_pci_func = {
+	.rd32 = nv40_pci_rd32,
+	.wr08 = nv40_pci_wr08,
+	.wr32 = nv40_pci_wr32,
+	.msi_rearm = nv50_pci_msi_rearm,
+};
+
+int
+nv50_pci_new(struct nvkm_device *device, int index, struct nvkm_pci **ppci)
+{
+	return nvkm_pci_new_(&nv50_pci_func, device, index, ppci);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/priv.h
new file mode 100644
index 000000000000..d22c2c117106
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/priv.h
@@ -0,0 +1,19 @@
+#ifndef __NVKM_PCI_PRIV_H__
+#define __NVKM_PCI_PRIV_H__
+#define nvkm_pci(p) container_of((p), struct nvkm_pci, subdev)
+#include <subdev/pci.h>
+
+int nvkm_pci_new_(const struct nvkm_pci_func *, struct nvkm_device *,
+		  int index, struct nvkm_pci **);
+
+struct nvkm_pci_func {
+	u32 (*rd32)(struct nvkm_pci *, u16 addr);
+	void (*wr08)(struct nvkm_pci *, u16 addr, u8 data);
+	void (*wr32)(struct nvkm_pci *, u16 addr, u32 data);
+	void (*msi_rearm)(struct nvkm_pci *);
+};
+
+u32 nv40_pci_rd32(struct nvkm_pci *, u16);
+void nv40_pci_wr08(struct nvkm_pci *, u16, u8);
+void nv40_pci_wr32(struct nvkm_pci *, u16, u32);
+#endif