X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fgpu%2Fdrm%2Fnouveau%2Fnvkm%2Fengine%2Fdma%2Fusergf119.c;fp=kernel%2Fdrivers%2Fgpu%2Fdrm%2Fnouveau%2Fnvkm%2Fengine%2Fdma%2Fusergf119.c;h=0e1af8b4db84acaa9f0e798cd00e103e4c3d7a33;hb=e09b41010ba33a20a87472ee821fa407a5b8da36;hp=0000000000000000000000000000000000000000;hpb=f93b97fd65072de626c074dbe099a1fff05ce060;p=kvmfornfv.git

diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/engine/dma/usergf119.c b/kernel/drivers/gpu/drm/nouveau/nvkm/engine/dma/usergf119.c
new file mode 100644
index 000000000..0e1af8b4d
--- /dev/null
+++ b/kernel/drivers/gpu/drm/nouveau/nvkm/engine/dma/usergf119.c
@@ -0,0 +1,131 @@
+/*
+ * 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
+ */
+#define gf119_dmaobj(p) container_of((p), struct gf119_dmaobj, base)
+#include "user.h"
+
+#include <core/client.h>
+#include <core/gpuobj.h>
+#include <subdev/fb.h>
+
+#include <nvif/class.h>
+#include <nvif/unpack.h>
+
+struct gf119_dmaobj {
+	struct nvkm_dmaobj base;
+	u32 flags0;
+};
+
+static int
+gf119_dmaobj_bind(struct nvkm_dmaobj *base, struct nvkm_gpuobj *parent,
+		  int align, struct nvkm_gpuobj **pgpuobj)
+{
+	struct gf119_dmaobj *dmaobj = gf119_dmaobj(base);
+	struct nvkm_device *device = dmaobj->base.dma->engine.subdev.device;
+	int ret;
+
+	ret = nvkm_gpuobj_new(device, 24, align, false, parent, pgpuobj);
+	if (ret == 0) {
+		nvkm_kmap(*pgpuobj);
+		nvkm_wo32(*pgpuobj, 0x00, dmaobj->flags0);
+		nvkm_wo32(*pgpuobj, 0x04, dmaobj->base.start >> 8);
+		nvkm_wo32(*pgpuobj, 0x08, dmaobj->base.limit >> 8);
+		nvkm_wo32(*pgpuobj, 0x0c, 0x00000000);
+		nvkm_wo32(*pgpuobj, 0x10, 0x00000000);
+		nvkm_wo32(*pgpuobj, 0x14, 0x00000000);
+		nvkm_done(*pgpuobj);
+	}
+
+	return ret;
+}
+
+static const struct nvkm_dmaobj_func
+gf119_dmaobj_func = {
+	.bind = gf119_dmaobj_bind,
+};
+
+int
+gf119_dmaobj_new(struct nvkm_dma *dma, const struct nvkm_oclass *oclass,
+		 void *data, u32 size, struct nvkm_dmaobj **pdmaobj)
+{
+	union {
+		struct gf119_dma_v0 v0;
+	} *args;
+	struct nvkm_object *parent = oclass->parent;
+	struct gf119_dmaobj *dmaobj;
+	u32 kind, page;
+	int ret;
+
+	if (!(dmaobj = kzalloc(sizeof(*dmaobj), GFP_KERNEL)))
+		return -ENOMEM;
+	*pdmaobj = &dmaobj->base;
+
+	ret = nvkm_dmaobj_ctor(&gf119_dmaobj_func, dma, oclass,
+			       &data, &size, &dmaobj->base);
+	if (ret)
+		return ret;
+
+	args = data;
+
+	nvif_ioctl(parent, "create gf119 dma size %d\n", size);
+	if (nvif_unpack(args->v0, 0, 0, false)) {
+		nvif_ioctl(parent,
+			   "create gf100 dma vers %d page %d kind %02x\n",
+			   args->v0.version, args->v0.page, args->v0.kind);
+		kind = args->v0.kind;
+		page = args->v0.page;
+	} else
+	if (size == 0) {
+		if (dmaobj->base.target != NV_MEM_TARGET_VM) {
+			kind = GF119_DMA_V0_KIND_PITCH;
+			page = GF119_DMA_V0_PAGE_SP;
+		} else {
+			kind = GF119_DMA_V0_KIND_VM;
+			page = GF119_DMA_V0_PAGE_LP;
+		}
+	} else
+		return ret;
+
+	if (page > 1)
+		return -EINVAL;
+	dmaobj->flags0 = (kind << 20) | (page << 6);
+
+	switch (dmaobj->base.target) {
+	case NV_MEM_TARGET_VRAM:
+		dmaobj->flags0 |= 0x00000009;
+		break;
+	case NV_MEM_TARGET_VM:
+	case NV_MEM_TARGET_PCI:
+	case NV_MEM_TARGET_PCI_NOSNOOP:
+		/* XXX: don't currently know how to construct a real one
+		 *      of these.  we only use them to represent pushbufs
+		 *      on these chipsets, and the classes that use them
+		 *      deal with the target themselves.
+		 */
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}