1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv41.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv41.c
new file mode 100644
index 000000000..909f92b72
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv41.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2012 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
+ */
+#include "mem.h"
+#include "vmm.h"
+
+#include <core/option.h>
+
+#include <nvif/class.h>
+
+static void
+nv41_mmu_init(struct nvkm_mmu *mmu)
+{
+	struct nvkm_device *device = mmu->subdev.device;
+	nvkm_wr32(device, 0x100800, 0x00000002 | mmu->vmm->pd->pt[0]->addr);
+	nvkm_mask(device, 0x10008c, 0x00000100, 0x00000100);
+	nvkm_wr32(device, 0x100820, 0x00000000);
+}
+
+static const struct nvkm_mmu_func
+nv41_mmu = {
+	.init = nv41_mmu_init,
+	.dma_bits = 39,
+	.mmu = {{ -1, -1, NVIF_CLASS_MMU_NV04}},
+	.mem = {{ -1, -1, NVIF_CLASS_MEM_NV04}, nv04_mem_new, nv04_mem_map },
+	.vmm = {{ -1, -1, NVIF_CLASS_VMM_NV04}, nv41_vmm_new, true },
+};
+
+int
+nv41_mmu_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+	     struct nvkm_mmu **pmmu)
+{
+	if (device->type == NVKM_DEVICE_AGP ||
+	    !nvkm_boolopt(device->cfgopt, "NvPCIE", true))
+		return nv04_mmu_new(device, type, inst, pmmu);
+
+	return nvkm_mmu_new_(&nv41_mmu, device, type, inst, pmmu);
+}