[linux-2.6-block.git] / drivers / gpu / drm / qxl / qxl_ioctl.c

/*
 * Copyright 2013 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: Dave Airlie
 *          Alon Levy
 */

#include "qxl_drv.h"
#include "qxl_object.h"

/*
 * TODO: allocating a new gem(in qxl_bo) for each request.
 * This is wasteful since bo's are page aligned.
 */
static int qxl_alloc_ioctl(struct drm_device *dev, void *data,
			   struct drm_file *file_priv)
{
	struct qxl_device *qdev = dev->dev_private;
	struct drm_qxl_alloc *qxl_alloc = data;
	int ret;
	struct qxl_bo *qobj;
	uint32_t handle;
	u32 domain = QXL_GEM_DOMAIN_VRAM;

	if (qxl_alloc->size == 0) {
		DRM_ERROR("invalid size %d\n", qxl_alloc->size);
		return -EINVAL;
	}
	ret = qxl_gem_object_create_with_handle(qdev, file_priv,
						domain,
						qxl_alloc->size,
						NULL,
						&qobj, &handle);
	if (ret) {
		DRM_ERROR("%s: failed to create gem ret=%d\n",
			  __func__, ret);
		return -ENOMEM;
	}
	qxl_alloc->handle = handle;
	return 0;
}

static int qxl_map_ioctl(struct drm_device *dev, void *data,
			 struct drm_file *file_priv)
{
	struct qxl_device *qdev = dev->dev_private;
	struct drm_qxl_map *qxl_map = data;

	return qxl_mode_dumb_mmap(file_priv, qdev->ddev, qxl_map->handle,
				  &qxl_map->offset);
}

struct qxl_reloc_info {
	int type;
	struct qxl_bo *dst_bo;
	uint32_t dst_offset;
	struct qxl_bo *src_bo;
	int src_offset;
};

/*
 * dst must be validated, i.e. whole bo on vram/surfacesram (right now all bo's
 * are on vram).
 * *(dst + dst_off) = qxl_bo_physical_address(src, src_off)
 */
static void
apply_reloc(struct qxl_device *qdev, struct qxl_reloc_info *info)
{
	void *reloc_page;
	reloc_page = qxl_bo_kmap_atomic_page(qdev, info->dst_bo, info->dst_offset & PAGE_MASK);
	*(uint64_t *)(reloc_page + (info->dst_offset & ~PAGE_MASK)) = qxl_bo_physical_address(qdev,
											      info->src_bo,
											      info->src_offset);
	qxl_bo_kunmap_atomic_page(qdev, info->dst_bo, reloc_page);
}

static void
apply_surf_reloc(struct qxl_device *qdev, struct qxl_reloc_info *info)
{
	uint32_t id = 0;
	void *reloc_page;

	if (info->src_bo && !info->src_bo->is_primary)
		id = info->src_bo->surface_id;

	reloc_page = qxl_bo_kmap_atomic_page(qdev, info->dst_bo, info->dst_offset & PAGE_MASK);
	*(uint32_t *)(reloc_page + (info->dst_offset & ~PAGE_MASK)) = id;
	qxl_bo_kunmap_atomic_page(qdev, info->dst_bo, reloc_page);
}

/* return holding the reference to this object */
static int qxlhw_handle_to_bo(struct qxl_device *qdev,
			      struct drm_file *file_priv, uint64_t handle,
			      struct qxl_release *release, struct qxl_bo **qbo_p)
{
	struct drm_gem_object *gobj;
	struct qxl_bo *qobj;
	int ret;

	gobj = drm_gem_object_lookup(qdev->ddev, file_priv, handle);
	if (!gobj)
		return -EINVAL;

	qobj = gem_to_qxl_bo(gobj);

	ret = qxl_release_list_add(release, qobj);
	drm_gem_object_unreference_unlocked(gobj);
	if (ret)
		return ret;

	*qbo_p = qobj;
	return 0;
}

/*
 * Usage of execbuffer:
 * Relocations need to take into account the full QXLDrawable size.
 * However, the command as passed from user space must *not* contain the initial
 * QXLReleaseInfo struct (first XXX bytes)
 */
static int qxl_process_single_command(struct qxl_device *qdev,
				      struct drm_qxl_command *cmd,
				      struct drm_file *file_priv)
{
	struct qxl_reloc_info *reloc_info;
	int release_type;
	struct qxl_release *release;
	struct qxl_bo *cmd_bo;
	void *fb_cmd;
	int i, ret, num_relocs;
	int unwritten;

	switch (cmd->type) {
	case QXL_CMD_DRAW:
		release_type = QXL_RELEASE_DRAWABLE;
		break;
	case QXL_CMD_SURFACE:
	case QXL_CMD_CURSOR:
	default:
		DRM_DEBUG("Only draw commands in execbuffers\n");
		return -EINVAL;
		break;
	}

	if (cmd->command_size > PAGE_SIZE - sizeof(union qxl_release_info))
		return -EINVAL;

	if (!access_ok(VERIFY_READ,
		       (void *)(unsigned long)cmd->command,
		       cmd->command_size))
		return -EFAULT;

	reloc_info = kmalloc_array(cmd->relocs_num,
				   sizeof(struct qxl_reloc_info), GFP_KERNEL);
	if (!reloc_info)
		return -ENOMEM;

	ret = qxl_alloc_release_reserved(qdev,
					 sizeof(union qxl_release_info) +
					 cmd->command_size,
					 release_type,
					 &release,
					 &cmd_bo);
	if (ret)
		goto out_free_reloc;

	/* TODO copy slow path code from i915 */
	fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_SIZE));
	unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void *)(unsigned long)cmd->command, cmd->command_size);

	{
		struct qxl_drawable *draw = fb_cmd;
		draw->mm_time = qdev->rom->mm_clock;
	}

	qxl_bo_kunmap_atomic_page(qdev, cmd_bo, fb_cmd);
	if (unwritten) {
		DRM_ERROR("got unwritten %d\n", unwritten);
		ret = -EFAULT;
		goto out_free_release;
	}

	/* fill out reloc info structs */
	num_relocs = 0;
	for (i = 0; i < cmd->relocs_num; ++i) {
		struct drm_qxl_reloc reloc;

		if (copy_from_user(&reloc,
				       &((struct drm_qxl_reloc *)(uintptr_t)cmd->relocs)[i],
				       sizeof(reloc))) {
			ret = -EFAULT;
			goto out_free_bos;
		}

		/* add the bos to the list of bos to validate -
		   need to validate first then process relocs? */
		if (reloc.reloc_type != QXL_RELOC_TYPE_BO && reloc.reloc_type != QXL_RELOC_TYPE_SURF) {
			DRM_DEBUG("unknown reloc type %d\n", reloc.reloc_type);

			ret = -EINVAL;
			goto out_free_bos;
		}
		reloc_info[i].type = reloc.reloc_type;

		if (reloc.dst_handle) {
			ret = qxlhw_handle_to_bo(qdev, file_priv, reloc.dst_handle, release,
						 &reloc_info[i].dst_bo);
			if (ret)
				goto out_free_bos;
			reloc_info[i].dst_offset = reloc.dst_offset;
		} else {
			reloc_info[i].dst_bo = cmd_bo;
			reloc_info[i].dst_offset = reloc.dst_offset + release->release_offset;
		}
		num_relocs++;

		/* reserve and validate the reloc dst bo */
		if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle) {
			ret = qxlhw_handle_to_bo(qdev, file_priv, reloc.src_handle, release,
						 &reloc_info[i].src_bo);
			if (ret)
				goto out_free_bos;
			reloc_info[i].src_offset = reloc.src_offset;
		} else {
			reloc_info[i].src_bo = NULL;
			reloc_info[i].src_offset = 0;
		}
	}

	/* validate all buffers */
	ret = qxl_release_reserve_list(release, false);
	if (ret)
		goto out_free_bos;

	for (i = 0; i < cmd->relocs_num; ++i) {
		if (reloc_info[i].type == QXL_RELOC_TYPE_BO)
			apply_reloc(qdev, &reloc_info[i]);
		else if (reloc_info[i].type == QXL_RELOC_TYPE_SURF)
			apply_surf_reloc(qdev, &reloc_info[i]);
	}

	ret = qxl_push_command_ring_release(qdev, release, cmd->type, true);
	if (ret)
		qxl_release_backoff_reserve_list(release);
	else
		qxl_release_fence_buffer_objects(release);

out_free_bos:
out_free_release:
	if (ret)
		qxl_release_free(qdev, release);
out_free_reloc:
	kfree(reloc_info);
	return ret;
}

static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data,
				struct drm_file *file_priv)
{
	struct qxl_device *qdev = dev->dev_private;
	struct drm_qxl_execbuffer *execbuffer = data;
	struct drm_qxl_command user_cmd;
	int cmd_num;
	int ret;

	for (cmd_num = 0; cmd_num < execbuffer->commands_num; ++cmd_num) {

		struct drm_qxl_command *commands =
			(struct drm_qxl_command *)(uintptr_t)execbuffer->commands;

		if (copy_from_user(&user_cmd, &commands[cmd_num],
				       sizeof(user_cmd)))
			return -EFAULT;

		ret = qxl_process_single_command(qdev, &user_cmd, file_priv);
		if (ret)
			return ret;
	}
	return 0;
}

static int qxl_update_area_ioctl(struct drm_device *dev, void *data,
				 struct drm_file *file)
{
	struct qxl_device *qdev = dev->dev_private;
	struct drm_qxl_update_area *update_area = data;
	struct qxl_rect area = {.left = update_area->left,
				.top = update_area->top,
				.right = update_area->right,
				.bottom = update_area->bottom};
	int ret;
	struct drm_gem_object *gobj = NULL;
	struct qxl_bo *qobj = NULL;

	if (update_area->left >= update_area->right ||
	    update_area->top >= update_area->bottom)
		return -EINVAL;

	gobj = drm_gem_object_lookup(dev, file, update_area->handle);
	if (gobj == NULL)
		return -ENOENT;

	qobj = gem_to_qxl_bo(gobj);

	ret = qxl_bo_reserve(qobj, false);
	if (ret)
		goto out;

	if (!qobj->pin_count) {
		qxl_ttm_placement_from_domain(qobj, qobj->type, false);
		ret = ttm_bo_validate(&qobj->tbo, &qobj->placement,
				      true, false);
		if (unlikely(ret))
			goto out;
	}

	ret = qxl_bo_check_id(qdev, qobj);
	if (ret)
		goto out2;
	if (!qobj->surface_id)
		DRM_ERROR("got update area for surface with no id %d\n", update_area->handle);
	ret = qxl_io_update_area(qdev, qobj, &area);

out2:
	qxl_bo_unreserve(qobj);

out:
	drm_gem_object_unreference_unlocked(gobj);
	return ret;
}

static int qxl_getparam_ioctl(struct drm_device *dev, void *data,
		       struct drm_file *file_priv)
{
	struct qxl_device *qdev = dev->dev_private;
	struct drm_qxl_getparam *param = data;

	switch (param->param) {
	case QXL_PARAM_NUM_SURFACES:
		param->value = qdev->rom->n_surfaces;
		break;
	case QXL_PARAM_MAX_RELOCS:
		param->value = QXL_MAX_RES;
		break;
	default:
		return -EINVAL;
	}
	return 0;
}

static int qxl_clientcap_ioctl(struct drm_device *dev, void *data,
				  struct drm_file *file_priv)
{
	struct qxl_device *qdev = dev->dev_private;
	struct drm_qxl_clientcap *param = data;
	int byte, idx;

	byte = param->index / 8;
	idx = param->index % 8;

	if (qdev->pdev->revision < 4)
		return -ENOSYS;

	if (byte >= 58)
		return -ENOSYS;

	if (qdev->rom->client_capabilities[byte] & (1 << idx))
		return 0;
	return -ENOSYS;
}

static int qxl_alloc_surf_ioctl(struct drm_device *dev, void *data,
				struct drm_file *file)
{
	struct qxl_device *qdev = dev->dev_private;
	struct drm_qxl_alloc_surf *param = data;
	struct qxl_bo *qobj;
	int handle;
	int ret;
	int size, actual_stride;
	struct qxl_surface surf;

	/* work out size allocate bo with handle */
	actual_stride = param->stride < 0 ? -param->stride : param->stride;
	size = actual_stride * param->height + actual_stride;

	surf.format = param->format;
	surf.width = param->width;
	surf.height = param->height;
	surf.stride = param->stride;
	surf.data = 0;

	ret = qxl_gem_object_create_with_handle(qdev, file,
						QXL_GEM_DOMAIN_SURFACE,
						size,
						&surf,
						&qobj, &handle);
	if (ret) {
		DRM_ERROR("%s: failed to create gem ret=%d\n",
			  __func__, ret);
		return -ENOMEM;
	} else
		param->handle = handle;
	return ret;
}

const struct drm_ioctl_desc qxl_ioctls[] = {
	DRM_IOCTL_DEF_DRV(QXL_ALLOC, qxl_alloc_ioctl, DRM_AUTH),

	DRM_IOCTL_DEF_DRV(QXL_MAP, qxl_map_ioctl, DRM_AUTH),

	DRM_IOCTL_DEF_DRV(QXL_EXECBUFFER, qxl_execbuffer_ioctl,
							DRM_AUTH),
	DRM_IOCTL_DEF_DRV(QXL_UPDATE_AREA, qxl_update_area_ioctl,
							DRM_AUTH),
	DRM_IOCTL_DEF_DRV(QXL_GETPARAM, qxl_getparam_ioctl,
							DRM_AUTH),
	DRM_IOCTL_DEF_DRV(QXL_CLIENTCAP, qxl_clientcap_ioctl,
							DRM_AUTH),

	DRM_IOCTL_DEF_DRV(QXL_ALLOC_SURF, qxl_alloc_surf_ioctl,
			  DRM_AUTH),
};

int qxl_max_ioctls = ARRAY_SIZE(qxl_ioctls);
Commit	Line	Data
f64122c1 DA	1	/*
	2	* Copyright 2013 Red Hat Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	20	* OTHER DEALINGS IN THE SOFTWARE.
	21	*
	22	* Authors: Dave Airlie
	23	* Alon Levy
	24	*/
	25
	26	#include "qxl_drv.h"
	27	#include "qxl_object.h"
	28
	29	/*
	30	* TODO: allocating a new gem(in qxl_bo) for each request.
	31	* This is wasteful since bo's are page aligned.
	32	*/
6d01f1f5 DA	33	static int qxl_alloc_ioctl(struct drm_device dev, void data,
6d01f1f5 DA	34	struct drm_file *file_priv)
f64122c1 DA	35	{
	36	struct qxl_device *qdev = dev->dev_private;
	37	struct drm_qxl_alloc *qxl_alloc = data;
	38	int ret;
	39	struct qxl_bo *qobj;
	40	uint32_t handle;
	41	u32 domain = QXL_GEM_DOMAIN_VRAM;
	42
	43	if (qxl_alloc->size == 0) {
	44	DRM_ERROR("invalid size %d\n", qxl_alloc->size);
	45	return -EINVAL;
	46	}
	47	ret = qxl_gem_object_create_with_handle(qdev, file_priv,
	48	domain,
	49	qxl_alloc->size,
	50	NULL,
	51	&qobj, &handle);
	52	if (ret) {
	53	DRM_ERROR("%s: failed to create gem ret=%d\n",
	54	__func__, ret);
	55	return -ENOMEM;
	56	}
	57	qxl_alloc->handle = handle;
	58	return 0;
	59	}
	60
6d01f1f5 DA	61	static int qxl_map_ioctl(struct drm_device dev, void data,
6d01f1f5 DA	62	struct drm_file *file_priv)
f64122c1 DA	63	{
	64	struct qxl_device *qdev = dev->dev_private;
	65	struct drm_qxl_map *qxl_map = data;
	66
	67	return qxl_mode_dumb_mmap(file_priv, qdev->ddev, qxl_map->handle,
	68	&qxl_map->offset);
	69	}
	70
8002db63 DA	71	struct qxl_reloc_info {
	72	int type;
	73	struct qxl_bo *dst_bo;
	74	uint32_t dst_offset;
	75	struct qxl_bo *src_bo;
	76	int src_offset;
	77	};
	78
f64122c1 DA	79	/*
	80	* dst must be validated, i.e. whole bo on vram/surfacesram (right now all bo's
	81	* are on vram).
	82	* *(dst + dst_off) = qxl_bo_physical_address(src, src_off)
	83	*/
	84	static void
8002db63	85	apply_reloc(struct qxl_device qdev, struct qxl_reloc_info info)
f64122c1 DA	86	{
f64122c1 DA	87	void *reloc_page;
8002db63 DA	88	reloc_page = qxl_bo_kmap_atomic_page(qdev, info->dst_bo, info->dst_offset & PAGE_MASK);
	89	(uint64_t )(reloc_page + (info->dst_offset & ~PAGE_MASK)) = qxl_bo_physical_address(qdev,
	90	info->src_bo,
	91	info->src_offset);
	92	qxl_bo_kunmap_atomic_page(qdev, info->dst_bo, reloc_page);
f64122c1 DA	93	}
	94
	95	static void
8002db63	96	apply_surf_reloc(struct qxl_device qdev, struct qxl_reloc_info info)
f64122c1 DA	97	{
	98	uint32_t id = 0;
	99	void *reloc_page;
	100
8002db63 DA	101	if (info->src_bo && !info->src_bo->is_primary)
8002db63 DA	102	id = info->src_bo->surface_id;
f64122c1	103
8002db63 DA	104	reloc_page = qxl_bo_kmap_atomic_page(qdev, info->dst_bo, info->dst_offset & PAGE_MASK);
	105	(uint32_t )(reloc_page + (info->dst_offset & ~PAGE_MASK)) = id;
	106	qxl_bo_kunmap_atomic_page(qdev, info->dst_bo, reloc_page);
f64122c1 DA	107	}
	108
	109	/* return holding the reference to this object */
ef131696 FZ	110	static int qxlhw_handle_to_bo(struct qxl_device *qdev,
	111	struct drm_file *file_priv, uint64_t handle,
	112	struct qxl_release release, struct qxl_bo *qbo_p)
f64122c1 DA	113	{
	114	struct drm_gem_object *gobj;
	115	struct qxl_bo *qobj;
	116	int ret;
	117
	118	gobj = drm_gem_object_lookup(qdev->ddev, file_priv, handle);
8002db63	119	if (!gobj)
ef131696	120	return -EINVAL;
8002db63	121
f64122c1 DA	122	qobj = gem_to_qxl_bo(gobj);
f64122c1 DA	123
8002db63	124	ret = qxl_release_list_add(release, qobj);
74d9a633 FZ	125	drm_gem_object_unreference_unlocked(gobj);
74d9a633 FZ	126	if (ret)
ef131696	127	return ret;
f64122c1	128
ef131696 FZ	129	*qbo_p = qobj;
ef131696 FZ	130	return 0;
f64122c1 DA	131	}
	132
	133	/*
	134	* Usage of execbuffer:
	135	* Relocations need to take into account the full QXLDrawable size.
	136	* However, the command as passed from user space must not contain the initial
	137	* QXLReleaseInfo struct (first XXX bytes)
	138	*/
8002db63 DA	139	static int qxl_process_single_command(struct qxl_device *qdev,
	140	struct drm_qxl_command *cmd,
	141	struct drm_file *file_priv)
f64122c1	142	{
8002db63 DA	143	struct qxl_reloc_info *reloc_info;
	144	int release_type;
	145	struct qxl_release *release;
	146	struct qxl_bo *cmd_bo;
f64122c1	147	void *fb_cmd;
74d9a633	148	int i, ret, num_relocs;
f64122c1	149	int unwritten;
f64122c1	150
8002db63 DA	151	switch (cmd->type) {
	152	case QXL_CMD_DRAW:
	153	release_type = QXL_RELEASE_DRAWABLE;
	154	break;
	155	case QXL_CMD_SURFACE:
	156	case QXL_CMD_CURSOR:
	157	default:
	158	DRM_DEBUG("Only draw commands in execbuffers\n");
	159	return -EINVAL;
	160	break;
	161	}
f64122c1	162
8002db63 DA	163	if (cmd->command_size > PAGE_SIZE - sizeof(union qxl_release_info))
8002db63 DA	164	return -EINVAL;
f64122c1	165
8002db63 DA	166	if (!access_ok(VERIFY_READ,
	167	(void *)(unsigned long)cmd->command,
	168	cmd->command_size))
	169	return -EFAULT;
f64122c1	170
34855706 GH	171	reloc_info = kmalloc_array(cmd->relocs_num,
34855706 GH	172	sizeof(struct qxl_reloc_info), GFP_KERNEL);
8002db63 DA	173	if (!reloc_info)
8002db63 DA	174	return -ENOMEM;
18097b91	175
8002db63 DA	176	ret = qxl_alloc_release_reserved(qdev,
	177	sizeof(union qxl_release_info) +
	178	cmd->command_size,
	179	release_type,
	180	&release,
	181	&cmd_bo);
	182	if (ret)
	183	goto out_free_reloc;
f64122c1	184
8002db63 DA	185	/* TODO copy slow path code from i915 */
	186	fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_SIZE));
	187	unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void *)(unsigned long)cmd->command, cmd->command_size);
c9272155	188
8002db63 DA	189	{
	190	struct qxl_drawable *draw = fb_cmd;
	191	draw->mm_time = qdev->rom->mm_clock;
	192	}
c9272155	193
8002db63 DA	194	qxl_bo_kunmap_atomic_page(qdev, cmd_bo, fb_cmd);
	195	if (unwritten) {
	196	DRM_ERROR("got unwritten %d\n", unwritten);
	197	ret = -EFAULT;
	198	goto out_free_release;
	199	}
	200
	201	/* fill out reloc info structs */
	202	num_relocs = 0;
	203	for (i = 0; i < cmd->relocs_num; ++i) {
	204	struct drm_qxl_reloc reloc;
	205
1d6ac185	206	if (copy_from_user(&reloc,
8002db63 DA	207	&((struct drm_qxl_reloc *)(uintptr_t)cmd->relocs)[i],
	208	sizeof(reloc))) {
	209	ret = -EFAULT;
	210	goto out_free_bos;
f64122c1 DA	211	}
f64122c1 DA	212
8002db63 DA	213	/* add the bos to the list of bos to validate -
	214	need to validate first then process relocs? */
	215	if (reloc.reloc_type != QXL_RELOC_TYPE_BO && reloc.reloc_type != QXL_RELOC_TYPE_SURF) {
55cc3df0	216	DRM_DEBUG("unknown reloc type %d\n", reloc.reloc_type);
f64122c1	217
8002db63 DA	218	ret = -EINVAL;
	219	goto out_free_bos;
	220	}
	221	reloc_info[i].type = reloc.reloc_type;
	222
	223	if (reloc.dst_handle) {
ef131696 FZ	224	ret = qxlhw_handle_to_bo(qdev, file_priv, reloc.dst_handle, release,
	225	&reloc_info[i].dst_bo);
	226	if (ret)
8002db63	227	goto out_free_bos;
8002db63 DA	228	reloc_info[i].dst_offset = reloc.dst_offset;
	229	} else {
	230	reloc_info[i].dst_bo = cmd_bo;
	231	reloc_info[i].dst_offset = reloc.dst_offset + release->release_offset;
	232	}
	233	num_relocs++;
	234
	235	/* reserve and validate the reloc dst bo */
ef131696 FZ	236	if (reloc.reloc_type == QXL_RELOC_TYPE_BO \|\| reloc.src_handle) {
	237	ret = qxlhw_handle_to_bo(qdev, file_priv, reloc.src_handle, release,
	238	&reloc_info[i].src_bo);
	239	if (ret)
8002db63	240	goto out_free_bos;
8002db63 DA	241	reloc_info[i].src_offset = reloc.src_offset;
	242	} else {
	243	reloc_info[i].src_bo = NULL;
	244	reloc_info[i].src_offset = 0;
	245	}
	246	}
f64122c1	247
8002db63 DA	248	/* validate all buffers */
	249	ret = qxl_release_reserve_list(release, false);
	250	if (ret)
	251	goto out_free_bos;
f64122c1	252
8002db63 DA	253	for (i = 0; i < cmd->relocs_num; ++i) {
	254	if (reloc_info[i].type == QXL_RELOC_TYPE_BO)
	255	apply_reloc(qdev, &reloc_info[i]);
	256	else if (reloc_info[i].type == QXL_RELOC_TYPE_SURF)
	257	apply_surf_reloc(qdev, &reloc_info[i]);
	258	}
f64122c1	259
8002db63 DA	260	ret = qxl_push_command_ring_release(qdev, release, cmd->type, true);
	261	if (ret)
	262	qxl_release_backoff_reserve_list(release);
	263	else
	264	qxl_release_fence_buffer_objects(release);
	265
	266	out_free_bos:
8002db63 DA	267	out_free_release:
	268	if (ret)
	269	qxl_release_free(qdev, release);
	270	out_free_reloc:
	271	kfree(reloc_info);
	272	return ret;
	273	}
	274
	275	static int qxl_execbuffer_ioctl(struct drm_device dev, void data,
	276	struct drm_file *file_priv)
	277	{
	278	struct qxl_device *qdev = dev->dev_private;
	279	struct drm_qxl_execbuffer *execbuffer = data;
	280	struct drm_qxl_command user_cmd;
	281	int cmd_num;
	282	int ret;
	283
	284	for (cmd_num = 0; cmd_num < execbuffer->commands_num; ++cmd_num) {
f64122c1	285
8002db63 DA	286	struct drm_qxl_command *commands =
	287	(struct drm_qxl_command *)(uintptr_t)execbuffer->commands;
	288
1d6ac185	289	if (copy_from_user(&user_cmd, &commands[cmd_num],
8002db63 DA	290	sizeof(user_cmd)))
	291	return -EFAULT;
	292
	293	ret = qxl_process_single_command(qdev, &user_cmd, file_priv);
	294	if (ret)
f64122c1	295	return ret;
f64122c1	296	}
f64122c1 DA	297	return 0;
	298	}
	299
6d01f1f5 DA	300	static int qxl_update_area_ioctl(struct drm_device dev, void data,
6d01f1f5 DA	301	struct drm_file *file)
f64122c1 DA	302	{
	303	struct qxl_device *qdev = dev->dev_private;
	304	struct drm_qxl_update_area *update_area = data;
	305	struct qxl_rect area = {.left = update_area->left,
	306	.top = update_area->top,
	307	.right = update_area->right,
	308	.bottom = update_area->bottom};
	309	int ret;
	310	struct drm_gem_object *gobj = NULL;
	311	struct qxl_bo *qobj = NULL;
	312
	313	if (update_area->left >= update_area->right \|\|
	314	update_area->top >= update_area->bottom)
	315	return -EINVAL;
	316
	317	gobj = drm_gem_object_lookup(dev, file, update_area->handle);
	318	if (gobj == NULL)
	319	return -ENOENT;
	320
	321	qobj = gem_to_qxl_bo(gobj);
	322
	323	ret = qxl_bo_reserve(qobj, false);
	324	if (ret)
	325	goto out;
	326
	327	if (!qobj->pin_count) {
4f49ec92	328	qxl_ttm_placement_from_domain(qobj, qobj->type, false);
f64122c1 DA	329	ret = ttm_bo_validate(&qobj->tbo, &qobj->placement,
	330	true, false);
	331	if (unlikely(ret))
	332	goto out;
	333	}
	334
	335	ret = qxl_bo_check_id(qdev, qobj);
	336	if (ret)
	337	goto out2;
	338	if (!qobj->surface_id)
	339	DRM_ERROR("got update area for surface with no id %d\n", update_area->handle);
	340	ret = qxl_io_update_area(qdev, qobj, &area);
	341
	342	out2:
	343	qxl_bo_unreserve(qobj);
	344
	345	out:
	346	drm_gem_object_unreference_unlocked(gobj);
	347	return ret;
	348	}
	349
	350	static int qxl_getparam_ioctl(struct drm_device dev, void data,
	351	struct drm_file *file_priv)
	352	{
	353	struct qxl_device *qdev = dev->dev_private;
	354	struct drm_qxl_getparam *param = data;
	355
	356	switch (param->param) {
	357	case QXL_PARAM_NUM_SURFACES:
	358	param->value = qdev->rom->n_surfaces;
	359	break;
	360	case QXL_PARAM_MAX_RELOCS:
	361	param->value = QXL_MAX_RES;
	362	break;
	363	default:
	364	return -EINVAL;
	365	}
	366	return 0;
	367	}
	368
	369	static int qxl_clientcap_ioctl(struct drm_device dev, void data,
	370	struct drm_file *file_priv)
	371	{
	372	struct qxl_device *qdev = dev->dev_private;
	373	struct drm_qxl_clientcap *param = data;
	374	int byte, idx;
	375
	376	byte = param->index / 8;
	377	idx = param->index % 8;
	378
	379	if (qdev->pdev->revision < 4)
	380	return -ENOSYS;
	381
62c8ba7c	382	if (byte >= 58)
f64122c1 DA	383	return -ENOSYS;
	384
	385	if (qdev->rom->client_capabilities[byte] & (1 << idx))
	386	return 0;
	387	return -ENOSYS;
	388	}
	389
	390	static int qxl_alloc_surf_ioctl(struct drm_device dev, void data,
	391	struct drm_file *file)
	392	{
	393	struct qxl_device *qdev = dev->dev_private;
	394	struct drm_qxl_alloc_surf *param = data;
	395	struct qxl_bo *qobj;
	396	int handle;
	397	int ret;
	398	int size, actual_stride;
	399	struct qxl_surface surf;
	400
	401	/* work out size allocate bo with handle */
	402	actual_stride = param->stride < 0 ? -param->stride : param->stride;
	403	size = actual_stride * param->height + actual_stride;
	404
	405	surf.format = param->format;
	406	surf.width = param->width;
	407	surf.height = param->height;
	408	surf.stride = param->stride;
	409	surf.data = 0;
	410
	411	ret = qxl_gem_object_create_with_handle(qdev, file,
	412	QXL_GEM_DOMAIN_SURFACE,
	413	size,
	414	&surf,
	415	&qobj, &handle);
	416	if (ret) {
	417	DRM_ERROR("%s: failed to create gem ret=%d\n",
	418	__func__, ret);
	419	return -ENOMEM;
	420	} else
	421	param->handle = handle;
	422	return ret;
	423	}
	424
baa70943	425	const struct drm_ioctl_desc qxl_ioctls[] = {
f8c47144	426	DRM_IOCTL_DEF_DRV(QXL_ALLOC, qxl_alloc_ioctl, DRM_AUTH),
f64122c1	427
f8c47144	428	DRM_IOCTL_DEF_DRV(QXL_MAP, qxl_map_ioctl, DRM_AUTH),
f64122c1 DA	429
f64122c1 DA	430	DRM_IOCTL_DEF_DRV(QXL_EXECBUFFER, qxl_execbuffer_ioctl,
f8c47144	431	DRM_AUTH),
f64122c1	432	DRM_IOCTL_DEF_DRV(QXL_UPDATE_AREA, qxl_update_area_ioctl,
f8c47144	433	DRM_AUTH),
f64122c1	434	DRM_IOCTL_DEF_DRV(QXL_GETPARAM, qxl_getparam_ioctl,
f8c47144	435	DRM_AUTH),
f64122c1	436	DRM_IOCTL_DEF_DRV(QXL_CLIENTCAP, qxl_clientcap_ioctl,
f8c47144	437	DRM_AUTH),
f64122c1 DA	438
f64122c1 DA	439	DRM_IOCTL_DEF_DRV(QXL_ALLOC_SURF, qxl_alloc_surf_ioctl,
f8c47144	440	DRM_AUTH),
f64122c1 DA	441	};
f64122c1 DA	442
f95aeb17	443	int qxl_max_ioctls = ARRAY_SIZE(qxl_ioctls);