libkms: Add libkms

7 files changed, 957 insertions, 0 deletions

diff --git a/libkms/Makefile.am b/libkms/Makefile.am
new file mode 100644
index 00000000..d65d6012
--- /dev/null
+++ b/libkms/Makefile.am
@@ -0,0 +1,20 @@
+AM_CFLAGS = \
+	$(WARN_CFLAGS) \
+	-I$(top_srcdir)/include/drm
+
+libkms_la_LTLIBRARIES = libkms.la
+libkms_ladir = $(libdir)
+libkms_la_LDFLAGS = -version-number 1:0:0 -no-undefined
+libkms_la_LIBADD =
+
+libkms_la_SOURCES = \
+	api.c \
+	vmwgfx.c
+
+libkmsincludedir = ${includedir}/libkms
+libkmsinclude_HEADERS = libkms.h
+
+pkgconfigdir = @pkgconfigdir@
+pkgconfig_DATA = libkms.pc
+
+EXTRA_DIST = libkms.pc.in
diff --git a/libkms/api.c b/libkms/api.c
new file mode 100644
index 00000000..f15ee70b
--- /dev/null
+++ b/libkms/api.c
@@ -0,0 +1,124 @@
+/**************************************************************************
+ *
+ * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 (including the
+ * next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include "internal.h"
+
+int kms_create(int fd, struct kms_driver **out)
+{
+	return vmwgfx_create(fd, out);
+}
+
+int kms_get_prop(struct kms_driver *kms, unsigned key, unsigned *out)
+{
+	switch (key) {
+	case KMS_MAX_SCANOUT_WIDTH:
+	case KMS_MAX_SCANOUT_HEIGHT:
+	case KMS_MIN_SCANOUT_WIDTH:
+	case KMS_MIN_SCANOUT_HEIGHT:
+	case KMS_MAX_CURSOR_WIDTH:
+	case KMS_MAX_CURSOR_HEIGHT:
+	case KMS_MIN_CURSOR_WIDTH:
+	case KMS_MIN_CURSOR_HEIGHT:
+		break;
+	default:
+		return -EINVAL;
+	}
+	return kms->get_prop(kms, key, out);
+}
+
+int kms_destroy(struct kms_driver *kms)
+{
+	free(kms);
+	return 0;
+}
+
+int kms_bo_create(struct kms_driver *kms, const unsigned *attr, struct kms_bo **out)
+{
+	unsigned width = 0;
+	unsigned height = 0;
+	enum kms_bo_type type = KMS_BO_TYPE_SCANOUT;
+	int i;
+
+	for (i = 0; attr[i];) {
+		unsigned key = attr[i++];
+		unsigned value = attr[i++];
+
+		switch (key) {
+		case KMS_WIDTH:
+			width = value;
+			break;
+		case KMS_HEIGHT:
+			height = value;
+			break;
+		case KMS_BO_TYPE:
+			type = value;
+			break;
+		default:
+			return EINVAL;
+		}
+	}
+
+	if (width == 0 || height == 0)
+		return -EINVAL;
+
+	return kms->bo_create(kms, width, height, type, attr, out);
+}
+
+int kms_bo_get_prop(struct kms_bo *bo, unsigned key, unsigned *out)
+{
+	switch (key) {
+	case KMS_PITCH:
+		*out = bo->pitch;
+		break;
+	case KMS_HANDLE:
+		*out = bo->handle;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+int kms_bo_map(struct kms_bo *bo, void **out)
+{
+	return bo->kms->bo_map(bo, out);
+}
+
+int kms_bo_unmap(struct kms_bo *bo)
+{
+	return bo->kms->bo_unmap(bo);
+}
+
+int kms_bo_destroy(struct kms_bo *bo)
+{
+	return bo->kms->bo_destroy(bo);
+}
diff --git a/libkms/internal.h b/libkms/internal.h
new file mode 100644
index 00000000..f1a2b1cf
--- /dev/null
+++ b/libkms/internal.h
@@ -0,0 +1,67 @@
+/**************************************************************************
+ *
+ * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 (including the
+ * next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+
+#ifndef INTERNAL_H_
+#define INTERNAL_H_
+
+#include "libkms.h"
+
+struct kms_driver
+{
+	int (*get_prop)(struct kms_driver *kms, const unsigned key,
+			unsigned *out);
+	int (*destroy)(struct kms_driver *kms);
+
+	int (*bo_create)(struct kms_driver *kms,
+			 unsigned width,
+			 unsigned height,
+			 enum kms_bo_type type,
+			 const unsigned *attr,
+			 struct kms_bo **out);
+	int (*bo_get_prop)(struct kms_bo *bo, const unsigned key,
+			   unsigned *out);
+	int (*bo_map)(struct kms_bo *bo, void **out);
+	int (*bo_unmap)(struct kms_bo *bo);
+	int (*bo_destroy)(struct kms_bo *bo);
+
+	int fd;
+};
+
+struct kms_bo
+{
+	struct kms_driver *kms;
+	void *ptr;
+	size_t size;
+	size_t offset;
+	size_t pitch;
+	unsigned handle;
+};
+
+int vmwgfx_create(int fd, struct kms_driver **out);
+
+#endif
diff --git a/libkms/libkms.h b/libkms/libkms.h
new file mode 100644
index 00000000..9cc8ae21
--- /dev/null
+++ b/libkms/libkms.h
@@ -0,0 +1,69 @@
+/**************************************************************************
+ *
+ * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 (including the
+ * next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+
+#ifndef _LIBKMS_H_
+#define _LIBKMS_H_
+
+struct kms_driver;
+struct kms_bo;
+
+enum kms_attrib
+{
+	KMS_TERMINATE_PROP_LIST,
+	KMS_BO_TYPE,
+	KMS_WIDTH,
+	KMS_HEIGHT,
+	KMS_PITCH,
+	KMS_HANDLE,
+	KMS_MAX_SCANOUT_WIDTH,
+	KMS_MAX_SCANOUT_HEIGHT,
+	KMS_MIN_SCANOUT_WIDTH,
+	KMS_MIN_SCANOUT_HEIGHT,
+	KMS_MAX_CURSOR_WIDTH,
+	KMS_MAX_CURSOR_HEIGHT,
+	KMS_MIN_CURSOR_WIDTH,
+	KMS_MIN_CURSOR_HEIGHT,
+};
+
+enum kms_bo_type
+{
+	KMS_BO_TYPE_SCANOUT = (1 << 0),
+	KMS_BO_TYPE_CURSOR =  (1 << 1),
+};
+
+int kms_create(int fd, struct kms_driver **out);
+int kms_get_prop(struct kms_driver *kms, unsigned key, unsigned *out);
+int kms_destroy(struct kms_driver *kms);
+
+int kms_bo_create(struct kms_driver *kms, const unsigned *attr, struct kms_bo **out);
+int kms_bo_get_prop(struct kms_bo *bo, unsigned key, unsigned *out);
+int kms_bo_map(struct kms_bo *bo, void **out);
+int kms_bo_unmap(struct kms_bo *bo);
+int kms_bo_destroy(struct kms_bo *bo);
+
+#endif
diff --git a/libkms/libkms.pc.in b/libkms/libkms.pc.in
new file mode 100644
index 00000000..b3cbbf33
--- /dev/null
+++ b/libkms/libkms.pc.in
@@ -0,0 +1,10 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libkms
+Description: Library that abstract aways the different mm interface for kernel drivers
+Version: 1.0
+Libs: -L${libdir} -lkms
+Cflags: -I${includedir}/libkms
diff --git a/libkms/vmwgfx.c b/libkms/vmwgfx.c
new file mode 100644
index 00000000..5030b7e3
--- /dev/null
+++ b/libkms/vmwgfx.c
@@ -0,0 +1,226 @@
+/**************************************************************************
+ *
+ * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 (including the
+ * next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+
+#define HAVE_STDINT_H
+#define _FILE_OFFSET_BITS 64
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include "internal.h"
+
+#include <sys/mman.h>
+#include "xf86drm.h"
+#include "vmwgfx_drm.h"
+
+struct vmwgfx_bo
+{
+	struct kms_bo base;
+	uint64_t map_handle;
+	unsigned map_count;
+};
+
+static int
+vmwgfx_get_prop(struct kms_driver *kms, unsigned key, unsigned *out)
+{
+	switch (key) {
+	case KMS_MAX_SCANOUT_WIDTH:
+		*out = 2048;
+		break;
+	case KMS_MAX_SCANOUT_HEIGHT:
+		*out = 2048;
+		break;
+	case KMS_MIN_SCANOUT_WIDTH:
+		*out = 1;
+		break;
+	case KMS_MIN_SCANOUT_HEIGHT:
+		*out = 1;
+		break;
+	case KMS_MAX_CURSOR_WIDTH:
+		*out = 64;
+		break;
+	case KMS_MAX_CURSOR_HEIGHT:
+		*out = 64;
+		break;
+	case KMS_MIN_CURSOR_WIDTH:
+		*out = 64;
+		break;
+	case KMS_MIN_CURSOR_HEIGHT:
+		*out = 64;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int
+vmwgfx_destroy(struct kms_driver *kms)
+{
+	free(kms);
+	return 0;
+}
+
+static int
+vmwgfx_bo_create(struct kms_driver *kms,
+		 const unsigned width, const unsigned height,
+		 const enum kms_bo_type type, const unsigned *attr,
+		 struct kms_bo **out)
+{
+	struct vmwgfx_bo *bo;
+	int i, ret;
+
+	for (i = 0; attr[i]; i += 2) {
+		switch (attr[i]) {
+		case KMS_WIDTH:
+		case KMS_HEIGHT:
+		case KMS_BO_TYPE:
+			break;
+		default:
+			return EINVAL;
+		}
+	}
+
+	bo = calloc(1, sizeof(*bo));
+	if (!bo)
+		return -EINVAL;
+
+	{
+		union drm_vmw_alloc_dmabuf_arg arg;
+		struct drm_vmw_alloc_dmabuf_req *req = &arg.req;
+		struct drm_vmw_dmabuf_rep *rep = &arg.rep;
+
+		memset(&arg, 0, sizeof(arg));
+		req->size = width * height * 4;
+		bo->base.size = req->size;
+		bo->base.pitch = width * 4;
+		bo->base.kms = kms;
+
+		do {
+			ret = drmCommandWriteRead(bo->base.kms->fd,
+						  DRM_VMW_ALLOC_DMABUF,
+						  &arg, sizeof(arg));
+		} while (ret == -ERESTART);
+
+		if (ret)
+			goto err_free;
+
+		bo->base.handle = rep->handle;
+		bo->map_handle = rep->map_handle;
+		bo->base.handle = rep->cur_gmr_id;
+		bo->base.offset = rep->cur_gmr_offset;
+	}
+
+	*out = &bo->base;
+
+	return 0;
+
+err_free:
+	free(bo);
+	return ret;
+}
+
+static int
+vmwgfx_bo_get_prop(struct kms_bo *bo, unsigned key, unsigned *out)
+{
+	switch (key) {
+	default:
+		return -EINVAL;
+	}
+}
+
+static int
+vmwgfx_bo_map(struct kms_bo *_bo, void **out)
+{
+	struct vmwgfx_bo *bo = (struct vmwgfx_bo *)_bo;
+	void *map;
+
+	if (!bo->map_count) {
+		map = mmap(NULL, bo->base.size, PROT_READ | PROT_WRITE,
+			   MAP_SHARED, bo->base.kms->fd, bo->map_handle);
+
+		if (!map)
+			return -ENOMEM;
+
+		bo->base.ptr = map;
+	}
+
+	bo->map_count++;
+	*out = bo->base.ptr;
+
+	return 0;
+}
+
+static int
+vmwgfx_bo_unmap(struct kms_bo *_bo)
+{
+	struct vmwgfx_bo *bo = (struct vmwgfx_bo *)_bo;
+	bo->map_count--;
+	return 0;
+}
+
+static int
+vmwgfx_bo_destroy(struct kms_bo *_bo)
+{
+	struct vmwgfx_bo *bo = (struct vmwgfx_bo *)_bo;
+	struct drm_vmw_unref_dmabuf_arg arg;
+
+	if (bo->map_count) {
+		munmap(bo->base.ptr, bo->base.size);
+		bo->base.ptr = NULL;
+	}
+
+	memset(&arg, 0, sizeof(arg));
+	arg.handle = bo->base.handle;
+	drmCommandWrite(bo->base.kms->fd, DRM_VMW_UNREF_DMABUF, &arg, sizeof(arg));
+
+	free(bo);
+	return 0;
+}
+
+int
+vmwgfx_create(int fd, struct kms_driver **out)
+{
+	struct kms_driver *kms;
+
+	kms = calloc(1, sizeof(*kms));
+	if (!kms)
+		return -ENOMEM;
+
+	kms->fd = fd;
+
+	kms->bo_create = vmwgfx_bo_create;
+	kms->bo_map = vmwgfx_bo_map;
+	kms->bo_unmap = vmwgfx_bo_unmap;
+	kms->bo_get_prop = vmwgfx_bo_get_prop;
+	kms->bo_destroy = vmwgfx_bo_destroy;
+	kms->get_prop = vmwgfx_get_prop;
+	kms->destroy = vmwgfx_destroy;
+	*out = kms;
+	return 0;
+}
diff --git a/libkms/vmwgfx_drm.h b/libkms/vmwgfx_drm.h
new file mode 100644
index 00000000..597ab3c9
--- /dev/null
+++ b/libkms/vmwgfx_drm.h
@@ -0,0 +1,441 @@
+/**************************************************************************
+ *
+ * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 (including the
+ * next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+#ifndef _VMWGFX_DRM_H_
+#define _VMWGFX_DRM_H_
+
+#define DRM_VMW_MAX_SURFACE_FACES 6
+#define DRM_VMW_MAX_MIP_LEVELS 24
+
+#define DRM_VMW_EXT_NAME_LEN 128
+
+#define DRM_VMW_GET_PARAM            1
+#define DRM_VMW_EXTENSION            2
+#define DRM_VMW_CREATE_CONTEXT       3
+#define DRM_VMW_UNREF_CONTEXT        4
+#define DRM_VMW_CREATE_SURFACE       5
+#define DRM_VMW_UNREF_SURFACE        6
+#define DRM_VMW_REF_SURFACE          7
+#define DRM_VMW_EXECBUF              8
+#define DRM_VMW_ALLOC_DMABUF         9
+#define DRM_VMW_UNREF_DMABUF         10
+#define DRM_VMW_FIFO_DEBUG           11
+#define DRM_VMW_FENCE_WAIT           12
+
+/*************************************************************************/
+/**
+ * DRM_VMW_GET_PARAM - get device information.
+ *
+ * Currently we support only one parameter:
+ *
+ * DRM_VMW_PARAM_FIFO_OFFSET:
+ * Offset to use to map the first page of the FIFO read-only.
+ * The fifo is mapped using the mmap() system call on the drm device.
+ */
+
+#define DRM_VMW_PARAM_FIFO_OFFSET    0
+
+/**
+ * struct drm_vmw_getparam_arg
+ *
+ * @value: Returned value. //Out
+ * @param: Parameter to query. //In.
+ *
+ * Argument to the DRM_VMW_GET_PARAM Ioctl.
+ */
+
+struct drm_vmw_getparam_arg {
+	uint64_t value;
+	uint32_t param;
+	uint32_t pad64;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_EXTENSION - Query device extensions.
+ */
+
+/**
+ * struct drm_vmw_extension_rep
+ *
+ * @exists: The queried extension exists.
+ * @driver_ioctl_offset: Ioctl number of the first ioctl in the extension.
+ * @driver_sarea_offset: Offset to any space in the DRI SAREA
+ * used by the extension.
+ * @major: Major version number of the extension.
+ * @minor: Minor version number of the extension.
+ * @pl: Patch level version number of the extension.
+ *
+ * Output argument to the DRM_VMW_EXTENSION Ioctl.
+ */
+
+struct drm_vmw_extension_rep {
+	int32_t exists;
+	uint32_t driver_ioctl_offset;
+	uint32_t driver_sarea_offset;
+	uint32_t major;
+	uint32_t minor;
+	uint32_t pl;
+	uint32_t pad64;
+};
+
+/**
+ * union drm_vmw_extension_arg
+ *
+ * @extension - Ascii name of the extension to be queried. //In
+ * @rep - Reply as defined above. //Out
+ *
+ * Argument to the DRM_VMW_EXTENSION Ioctl.
+ */
+
+union drm_vmw_extension_arg {
+	char extension[DRM_VMW_EXT_NAME_LEN];
+	struct drm_vmw_extension_rep rep;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_CREATE_CONTEXT - Create a host context.
+ *
+ * Allocates a device unique context id, and queues a create context command
+ * for the host. Does not wait for host completion.
+ */
+
+/**
+ * struct drm_vmw_context_arg
+ *
+ * @cid: Device unique context ID.
+ *
+ * Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl.
+ * Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl.
+ */
+
+struct drm_vmw_context_arg {
+	int32_t cid;
+	uint32_t pad64;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_UNREF_CONTEXT - Create a host context.
+ *
+ * Frees a global context id, and queues a destroy host command for the host.
+ * Does not wait for host completion. The context ID can be used directly
+ * in the command stream and shows up as the same context ID on the host.
+ */
+
+/*************************************************************************/
+/**
+ * DRM_VMW_CREATE_SURFACE - Create a host suface.
+ *
+ * Allocates a device unique surface id, and queues a create surface command
+ * for the host. Does not wait for host completion. The surface ID can be
+ * used directly in the command stream and shows up as the same surface
+ * ID on the host.
+ */
+
+/**
+ * struct drm_wmv_surface_create_req
+ *
+ * @flags: Surface flags as understood by the host.
+ * @format: Surface format as understood by the host.
+ * @mip_levels: Number of mip levels for each face.
+ * An unused face should have 0 encoded.
+ * @size_addr: Address of a user-space array of sruct drm_vmw_size
+ * cast to an uint64_t for 32-64 bit compatibility.
+ * The size of the array should equal the total number of mipmap levels.
+ * @shareable: Boolean whether other clients (as identified by file descriptors)
+ * may reference this surface.
+ *
+ * Input data to the DRM_VMW_CREATE_SURFACE Ioctl.
+ * Output data from the DRM_VMW_REF_SURFACE Ioctl.
+ */
+
+struct drm_vmw_surface_create_req {
+	uint32_t flags;
+	uint32_t format;
+	uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
+	uint64_t size_addr;
+	int32_t shareable;
+	uint32_t pad64;
+};
+
+/**
+ * struct drm_wmv_surface_arg
+ *
+ * @sid: Surface id of created surface or surface to destroy or reference.
+ *
+ * Output data from the DRM_VMW_CREATE_SURFACE Ioctl.
+ * Input argument to the DRM_VMW_UNREF_SURFACE Ioctl.
+ * Input argument to the DRM_VMW_REF_SURFACE Ioctl.
+ */
+
+struct drm_vmw_surface_arg {
+	int32_t sid;
+	uint32_t pad64;
+};
+
+/**
+ * struct drm_vmw_size ioctl.
+ *
+ * @width - mip level width
+ * @height - mip level height
+ * @depth - mip level depth
+ *
+ * Description of a mip level.
+ * Input data to the DRM_WMW_CREATE_SURFACE Ioctl.
+ */
+
+struct drm_vmw_size {
+	uint32_t width;
+	uint32_t height;
+	uint32_t depth;
+	uint32_t pad64;
+};
+
+/**
+ * union drm_vmw_surface_create_arg
+ *
+ * @rep: Output data as described above.
+ * @req: Input data as described above.
+ *
+ * Argument to the DRM_VMW_CREATE_SURFACE Ioctl.
+ */
+
+union drm_vmw_surface_create_arg {
+	struct drm_vmw_surface_arg rep;
+	struct drm_vmw_surface_create_req req;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_REF_SURFACE - Reference a host surface.
+ *
+ * Puts a reference on a host surface with a give sid, as previously
+ * returned by the DRM_VMW_CREATE_SURFACE ioctl.
+ * A reference will make sure the surface isn't destroyed while we hold
+ * it and will allow the calling client to use the surface ID in the command
+ * stream.
+ *
+ * On successful return, the Ioctl returns the surface information given
+ * in the DRM_VMW_CREATE_SURFACE ioctl.
+ */
+
+/**
+ * union drm_vmw_surface_reference_arg
+ *
+ * @rep: Output data as described above.
+ * @req: Input data as described above.
+ *
+ * Argument to the DRM_VMW_REF_SURFACE Ioctl.
+ */
+
+union drm_vmw_surface_reference_arg {
+	struct drm_vmw_surface_create_req rep;
+	struct drm_vmw_surface_arg req;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_UNREF_SURFACE - Unreference a host surface.
+ *
+ * Clear a reference previously put on a host surface.
+ * When all references are gone, including the one implicitly placed
+ * on creation,
+ * a destroy surface command will be queued for the host.
+ * Does not wait for completion.
+ */
+
+/*************************************************************************/
+/**
+ * DRM_VMW_EXECBUF
+ *
+ * Submit a command buffer for execution on the host, and return a
+ * fence sequence that when signaled, indicates that the command buffer has
+ * executed.
+ */
+
+/**
+ * struct drm_vmw_execbuf_arg
+ *
+ * @commands: User-space address of a command buffer cast to an uint64_t.
+ * @command-size: Size in bytes of the command buffer.
+ * @fence_rep: User-space address of a struct drm_vmw_fence_rep cast to an
+ * uint64_t.
+ *
+ * Argument to the DRM_VMW_EXECBUF Ioctl.
+ */
+
+struct drm_vmw_execbuf_arg {
+	uint64_t commands;
+	uint32_t command_size;
+	uint32_t pad64;
+	uint64_t fence_rep;
+};
+
+/**
+ * struct drm_vmw_fence_rep
+ *
+ * @fence_seq: Fence sequence associated with a command submission.
+ * @error: This member should've been set to -EFAULT on submission.
+ * The following actions should be take on completion:
+ * error == -EFAULT: Fence communication failed. The host is synchronized.
+ * Use the last fence id read from the FIFO fence register.
+ * error != 0 && error != -EFAULT:
+ * Fence submission failed. The host is synchronized. Use the fence_seq member.
+ * error == 0: All is OK, The host may not be synchronized.
+ * Use the fence_seq member.
+ *
+ * Input / Output data to the DRM_VMW_EXECBUF Ioctl.
+ */
+
+struct drm_vmw_fence_rep {
+	uint64_t fence_seq;
+	int32_t error;
+	uint32_t pad64;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_ALLOC_DMABUF
+ *
+ * Allocate a DMA buffer that is visible also to the host.
+ * NOTE: The buffer is
+ * identified by a handle and an offset, which are private to the guest, but
+ * useable in the command stream. The guest kernel may translate these
+ * and patch up the command stream accordingly. In the future, the offset may
+ * be zero at all times, or it may disappear from the interface before it is
+ * fixed.
+ *
+ * The DMA buffer may stay user-space mapped in the guest at all times,
+ * and is thus suitable for sub-allocation.
+ *
+ * DMA buffers are mapped using the mmap() syscall on the drm device.
+ */
+
+/**
+ * struct drm_vmw_alloc_dmabuf_req
+ *
+ * @size: Required minimum size of the buffer.
+ *
+ * Input data to the DRM_VMW_ALLOC_DMABUF Ioctl.
+ */
+
+struct drm_vmw_alloc_dmabuf_req {
+	uint32_t size;
+	uint32_t pad64;
+};
+
+/**
+ * struct drm_vmw_dmabuf_rep
+ *
+ * @map_handle: Offset to use in the mmap() call used to map the buffer.
+ * @handle: Handle unique to this buffer. Used for unreferencing.
+ * @cur_gmr_id: GMR id to use in the command stream when this buffer is
+ * referenced. See not above.
+ * @cur_gmr_offset: Offset to use in the command stream when this buffer is
+ * referenced. See note above.
+ *
+ * Output data from the DRM_VMW_ALLOC_DMABUF Ioctl.
+ */
+
+struct drm_vmw_dmabuf_rep {
+	uint64_t map_handle;
+	uint32_t handle;
+	uint32_t cur_gmr_id;
+	uint32_t cur_gmr_offset;
+	uint32_t pad64;
+};
+
+/**
+ * union drm_vmw_dmabuf_arg
+ *
+ * @req: Input data as described above.
+ * @rep: Output data as described above.
+ *
+ * Argument to the DRM_VMW_ALLOC_DMABUF Ioctl.
+ */
+
+union drm_vmw_alloc_dmabuf_arg {
+	struct drm_vmw_alloc_dmabuf_req req;
+	struct drm_vmw_dmabuf_rep rep;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_UNREF_DMABUF - Free a DMA buffer.
+ *
+ */
+
+/**
+ * struct drm_vmw_unref_dmabuf_arg
+ *
+ * @handle: Handle indicating what buffer to free. Obtained from the
+ * DRM_VMW_ALLOC_DMABUF Ioctl.
+ *
+ * Argument to the DRM_VMW_UNREF_DMABUF Ioctl.
+ */
+
+struct drm_vmw_unref_dmabuf_arg {
+	uint32_t handle;
+	uint32_t pad64;
+};
+
+/*************************************************************************/
+/**
+ * DRM_VMW_FIFO_DEBUG - Get last FIFO submission.
+ *
+ * This IOCTL copies the last FIFO submission directly out of the FIFO buffer.
+ */
+
+/**
+ * struct drm_vmw_fifo_debug_arg
+ *
+ * @debug_buffer: User space address of a debug_buffer cast to an uint64_t //In
+ * @debug_buffer_size: Size in bytes of debug buffer //In
+ * @used_size: Number of bytes copied to the buffer // Out
+ * @did_not_fit: Boolean indicating that the fifo contents did not fit. //Out
+ *
+ * Argument to the DRM_VMW_FIFO_DEBUG Ioctl.
+ */
+
+struct drm_vmw_fifo_debug_arg {
+	uint64_t debug_buffer;
+	uint32_t debug_buffer_size;
+	uint32_t used_size;
+	int32_t did_not_fit;
+	uint32_t pad64;
+};
+
+struct drm_vmw_fence_wait_arg {
+	uint64_t sequence;
+	uint64_t kernel_cookie;
+	int32_t cookie_valid;
+	int32_t pad64;
+};
+
+#endif