[linux-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 <linux/pci.h>
#include <linux/uaccess.h>

#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.
 */
int qxl_alloc_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
	struct qxl_device *qdev = to_qxl(dev);
	struct drm_qxl_alloc *qxl_alloc = data;
	int ret;
	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,
						NULL, &handle);
	if (ret) {
		DRM_ERROR("%s: failed to create gem ret=%d\n",
			  __func__, ret);
		return -ENOMEM;
	}
	qxl_alloc->handle = handle;
	return 0;
}

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

	return drm_gem_ttm_dumb_map_offset(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 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(file_priv, handle);
	if (!gobj)
		return -EINVAL;

	qobj = gem_to_qxl_bo(gobj);

	ret = qxl_release_list_add(release, qobj);
	drm_gem_object_put(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;
	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;
	}

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

	if (!access_ok(u64_to_user_ptr(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_MASK));
	unwritten = __copy_from_user_inatomic_nocache
		(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_MASK),
		 u64_to_user_ptr(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 */
	for (i = 0; i < cmd->relocs_num; ++i) {
		struct drm_qxl_reloc reloc;
		struct drm_qxl_reloc __user *u = u64_to_user_ptr(cmd->relocs);

		if (copy_from_user(&reloc, u + 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(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;
		}

		/* reserve and validate the reloc dst bo */
		if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle) {
			ret = qxlhw_handle_to_bo(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]);
	}

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

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

int qxl_execbuffer_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
	struct qxl_device *qdev = to_qxl(dev);
	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 __user *commands =
			u64_to_user_ptr(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;
}

int qxl_update_area_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
{
	struct qxl_device *qdev = to_qxl(dev);
	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;
	struct ttm_operation_ctx ctx = { true, false };

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

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

	qobj = gem_to_qxl_bo(gobj);

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

	if (!qobj->tbo.pin_count) {
		qxl_ttm_placement_from_domain(qobj, qobj->type);
		ret = ttm_bo_validate(&qobj->tbo, &qobj->placement, &ctx);
		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_put(gobj);
	return ret;
}

int qxl_getparam_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
	struct qxl_device *qdev = to_qxl(dev);
	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;
}

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

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

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

	if (byte >= 58)
		return -ENOSYS;

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

int qxl_alloc_surf_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
{
	struct qxl_device *qdev = to_qxl(dev);
	struct drm_qxl_alloc_surf *param = data;
	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,
						NULL, &handle);
	if (ret) {
		DRM_ERROR("%s: failed to create gem ret=%d\n",
			  __func__, ret);
		return -ENOMEM;
	} else
		param->handle = handle;
	return ret;
}
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
c0f4b75c SR	26	#include <linux/pci.h>
	27	#include <linux/uaccess.h>
	28
f64122c1 DA	29	#include "qxl_drv.h"
	30	#include "qxl_object.h"
	31
	32	/*
	33	* TODO: allocating a new gem(in qxl_bo) for each request.
	34	* This is wasteful since bo's are page aligned.
	35	*/
66755b48	36	int qxl_alloc_ioctl(struct drm_device dev, void data, struct drm_file *file_priv)
f64122c1	37	{
e304f8a0	38	struct qxl_device *qdev = to_qxl(dev);
f64122c1 DA	39	struct drm_qxl_alloc *qxl_alloc = data;
f64122c1 DA	40	int ret;
f64122c1 DA	41	uint32_t handle;
	42	u32 domain = QXL_GEM_DOMAIN_VRAM;
	43
	44	if (qxl_alloc->size == 0) {
	45	DRM_ERROR("invalid size %d\n", qxl_alloc->size);
	46	return -EINVAL;
	47	}
	48	ret = qxl_gem_object_create_with_handle(qdev, file_priv,
	49	domain,
	50	qxl_alloc->size,
	51	NULL,
c611589b	52	NULL, &handle);
f64122c1 DA	53	if (ret) {
	54	DRM_ERROR("%s: failed to create gem ret=%d\n",
	55	__func__, ret);
	56	return -ENOMEM;
	57	}
	58	qxl_alloc->handle = handle;
	59	return 0;
	60	}
	61
66755b48	62	int qxl_map_ioctl(struct drm_device dev, void data, struct drm_file *file_priv)
f64122c1	63	{
e304f8a0	64	struct qxl_device *qdev = to_qxl(dev);
f64122c1 DA	65	struct drm_qxl_map *qxl_map = data;
f64122c1 DA	66
f4268a4b TZ	67	return drm_gem_ttm_dumb_map_offset(file_priv, &qdev->ddev, qxl_map->handle,
f4268a4b TZ	68	&qxl_map->offset);
f64122c1 DA	69	}
f64122c1 DA	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;
408799eb	88
8002db63 DA	89	reloc_page = qxl_bo_kmap_atomic_page(qdev, info->dst_bo, info->dst_offset & PAGE_MASK);
	90	(uint64_t )(reloc_page + (info->dst_offset & ~PAGE_MASK)) = qxl_bo_physical_address(qdev,
	91	info->src_bo,
	92	info->src_offset);
	93	qxl_bo_kunmap_atomic_page(qdev, info->dst_bo, reloc_page);
f64122c1 DA	94	}
	95
	96	static void
8002db63	97	apply_surf_reloc(struct qxl_device qdev, struct qxl_reloc_info info)
f64122c1 DA	98	{
	99	uint32_t id = 0;
	100	void *reloc_page;
	101
8002db63 DA	102	if (info->src_bo && !info->src_bo->is_primary)
8002db63 DA	103	id = info->src_bo->surface_id;
f64122c1	104
8002db63 DA	105	reloc_page = qxl_bo_kmap_atomic_page(qdev, info->dst_bo, info->dst_offset & PAGE_MASK);
	106	(uint32_t )(reloc_page + (info->dst_offset & ~PAGE_MASK)) = id;
	107	qxl_bo_kunmap_atomic_page(qdev, info->dst_bo, reloc_page);
f64122c1 DA	108	}
	109
	110	/* return holding the reference to this object */
a8ad0bd8	111	static int qxlhw_handle_to_bo(struct drm_file *file_priv, uint64_t handle,
ef131696	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
a8ad0bd8	118	gobj = drm_gem_object_lookup(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);
9c86fb18	125	drm_gem_object_put(gobj);
74d9a633	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;
aba2a144	148	int i, ret;
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;
8002db63	160	}
f64122c1	161
8002db63 DA	162	if (cmd->command_size > PAGE_SIZE - sizeof(union qxl_release_info))
8002db63 DA	163	return -EINVAL;
f64122c1	164
96d4f267	165	if (!access_ok(u64_to_user_ptr(cmd->command),
8002db63 DA	166	cmd->command_size))
8002db63 DA	167	return -EFAULT;
f64122c1	168
34855706 GH	169	reloc_info = kmalloc_array(cmd->relocs_num,
34855706 GH	170	sizeof(struct qxl_reloc_info), GFP_KERNEL);
8002db63 DA	171	if (!reloc_info)
8002db63 DA	172	return -ENOMEM;
18097b91	173
8002db63 DA	174	ret = qxl_alloc_release_reserved(qdev,
	175	sizeof(union qxl_release_info) +
	176	cmd->command_size,
	177	release_type,
	178	&release,
	179	&cmd_bo);
	180	if (ret)
	181	goto out_free_reloc;
f64122c1	182
8002db63	183	/* TODO copy slow path code from i915 */
66c0255c	184	fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_MASK));
6545135a	185	unwritten = __copy_from_user_inatomic_nocache
66c0255c	186	(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_MASK),
6545135a	187	u64_to_user_ptr(cmd->command), cmd->command_size);
c9272155	188
8002db63 DA	189	{
8002db63 DA	190	struct qxl_drawable *draw = fb_cmd;
408799eb	191
8002db63 DA	192	draw->mm_time = qdev->rom->mm_clock;
8002db63 DA	193	}
c9272155	194
8002db63 DA	195	qxl_bo_kunmap_atomic_page(qdev, cmd_bo, fb_cmd);
	196	if (unwritten) {
	197	DRM_ERROR("got unwritten %d\n", unwritten);
	198	ret = -EFAULT;
	199	goto out_free_release;
	200	}
	201
	202	/* fill out reloc info structs */
8002db63 DA	203	for (i = 0; i < cmd->relocs_num; ++i) {
8002db63 DA	204	struct drm_qxl_reloc reloc;
6545135a	205	struct drm_qxl_reloc __user *u = u64_to_user_ptr(cmd->relocs);
8002db63	206
6545135a	207	if (copy_from_user(&reloc, u + i, sizeof(reloc))) {
8002db63 DA	208	ret = -EFAULT;
8002db63 DA	209	goto out_free_bos;
f64122c1 DA	210	}
f64122c1 DA	211
8002db63 DA	212	/* add the bos to the list of bos to validate -
	213	need to validate first then process relocs? */
	214	if (reloc.reloc_type != QXL_RELOC_TYPE_BO && reloc.reloc_type != QXL_RELOC_TYPE_SURF) {
55cc3df0	215	DRM_DEBUG("unknown reloc type %d\n", reloc.reloc_type);
f64122c1	216
8002db63 DA	217	ret = -EINVAL;
	218	goto out_free_bos;
	219	}
	220	reloc_info[i].type = reloc.reloc_type;
	221
	222	if (reloc.dst_handle) {
a8ad0bd8	223	ret = qxlhw_handle_to_bo(file_priv, reloc.dst_handle, release,
ef131696 FZ	224	&reloc_info[i].dst_bo);
ef131696 FZ	225	if (ret)
8002db63	226	goto out_free_bos;
8002db63 DA	227	reloc_info[i].dst_offset = reloc.dst_offset;
	228	} else {
	229	reloc_info[i].dst_bo = cmd_bo;
	230	reloc_info[i].dst_offset = reloc.dst_offset + release->release_offset;
	231	}
8002db63 DA	232
8002db63 DA	233	/* reserve and validate the reloc dst bo */
ef131696	234	if (reloc.reloc_type == QXL_RELOC_TYPE_BO \|\| reloc.src_handle) {
a8ad0bd8	235	ret = qxlhw_handle_to_bo(file_priv, reloc.src_handle, release,
ef131696 FZ	236	&reloc_info[i].src_bo);
ef131696 FZ	237	if (ret)
8002db63	238	goto out_free_bos;
8002db63 DA	239	reloc_info[i].src_offset = reloc.src_offset;
	240	} else {
	241	reloc_info[i].src_bo = NULL;
	242	reloc_info[i].src_offset = 0;
	243	}
	244	}
f64122c1	245
8002db63 DA	246	/* validate all buffers */
	247	ret = qxl_release_reserve_list(release, false);
	248	if (ret)
	249	goto out_free_bos;
f64122c1	250
8002db63 DA	251	for (i = 0; i < cmd->relocs_num; ++i) {
	252	if (reloc_info[i].type == QXL_RELOC_TYPE_BO)
	253	apply_reloc(qdev, &reloc_info[i]);
	254	else if (reloc_info[i].type == QXL_RELOC_TYPE_SURF)
	255	apply_surf_reloc(qdev, &reloc_info[i]);
	256	}
f64122c1	257
933db733	258	qxl_release_fence_buffer_objects(release);
8002db63	259	ret = qxl_push_command_ring_release(qdev, release, cmd->type, true);
8002db63 DA	260
8002db63 DA	261	out_free_bos:
8002db63 DA	262	out_free_release:
	263	if (ret)
	264	qxl_release_free(qdev, release);
	265	out_free_reloc:
	266	kfree(reloc_info);
	267	return ret;
	268	}
	269
66755b48	270	int qxl_execbuffer_ioctl(struct drm_device dev, void data, struct drm_file *file_priv)
8002db63	271	{
e304f8a0	272	struct qxl_device *qdev = to_qxl(dev);
8002db63 DA	273	struct drm_qxl_execbuffer *execbuffer = data;
	274	struct drm_qxl_command user_cmd;
	275	int cmd_num;
	276	int ret;
	277
	278	for (cmd_num = 0; cmd_num < execbuffer->commands_num; ++cmd_num) {
f64122c1	279
6545135a GH	280	struct drm_qxl_command __user *commands =
6545135a GH	281	u64_to_user_ptr(execbuffer->commands);
8002db63	282
6545135a	283	if (copy_from_user(&user_cmd, commands + cmd_num,
8002db63 DA	284	sizeof(user_cmd)))
	285	return -EFAULT;
	286
	287	ret = qxl_process_single_command(qdev, &user_cmd, file_priv);
	288	if (ret)
f64122c1	289	return ret;
f64122c1	290	}
f64122c1 DA	291	return 0;
	292	}
	293
66755b48	294	int qxl_update_area_ioctl(struct drm_device dev, void data, struct drm_file *file)
f64122c1	295	{
e304f8a0	296	struct qxl_device *qdev = to_qxl(dev);
f64122c1 DA	297	struct drm_qxl_update_area *update_area = data;
	298	struct qxl_rect area = {.left = update_area->left,
	299	.top = update_area->top,
	300	.right = update_area->right,
	301	.bottom = update_area->bottom};
	302	int ret;
	303	struct drm_gem_object *gobj = NULL;
	304	struct qxl_bo *qobj = NULL;
19be5570	305	struct ttm_operation_ctx ctx = { true, false };
f64122c1 DA	306
	307	if (update_area->left >= update_area->right \|\|
	308	update_area->top >= update_area->bottom)
	309	return -EINVAL;
	310
a8ad0bd8	311	gobj = drm_gem_object_lookup(file, update_area->handle);
f64122c1 DA	312	if (gobj == NULL)
	313	return -ENOENT;
	314
	315	qobj = gem_to_qxl_bo(gobj);
	316
9c4cbb3a	317	ret = qxl_bo_reserve(qobj);
f64122c1 DA	318	if (ret)
	319	goto out;
	320
9d36d432 CK	321	if (!qobj->tbo.pin_count) {
9d36d432 CK	322	qxl_ttm_placement_from_domain(qobj, qobj->type);
19be5570	323	ret = ttm_bo_validate(&qobj->tbo, &qobj->placement, &ctx);
f64122c1 DA	324	if (unlikely(ret))
	325	goto out;
	326	}
	327
	328	ret = qxl_bo_check_id(qdev, qobj);
	329	if (ret)
	330	goto out2;
	331	if (!qobj->surface_id)
	332	DRM_ERROR("got update area for surface with no id %d\n", update_area->handle);
	333	ret = qxl_io_update_area(qdev, qobj, &area);
	334
	335	out2:
	336	qxl_bo_unreserve(qobj);
	337
	338	out:
9c86fb18	339	drm_gem_object_put(gobj);
f64122c1 DA	340	return ret;
	341	}
	342
66755b48	343	int qxl_getparam_ioctl(struct drm_device dev, void data, struct drm_file *file_priv)
f64122c1	344	{
e304f8a0	345	struct qxl_device *qdev = to_qxl(dev);
f64122c1 DA	346	struct drm_qxl_getparam *param = data;
	347
	348	switch (param->param) {
	349	case QXL_PARAM_NUM_SURFACES:
	350	param->value = qdev->rom->n_surfaces;
	351	break;
	352	case QXL_PARAM_MAX_RELOCS:
	353	param->value = QXL_MAX_RES;
	354	break;
	355	default:
	356	return -EINVAL;
	357	}
	358	return 0;
	359	}
	360
66755b48	361	int qxl_clientcap_ioctl(struct drm_device dev, void data, struct drm_file *file_priv)
f64122c1	362	{
e304f8a0	363	struct qxl_device *qdev = to_qxl(dev);
dc3629ab	364	struct pci_dev *pdev = to_pci_dev(dev->dev);
f64122c1 DA	365	struct drm_qxl_clientcap *param = data;
	366	int byte, idx;
	367
	368	byte = param->index / 8;
	369	idx = param->index % 8;
	370
dc3629ab	371	if (pdev->revision < 4)
f64122c1 DA	372	return -ENOSYS;
f64122c1 DA	373
62c8ba7c	374	if (byte >= 58)
f64122c1 DA	375	return -ENOSYS;
	376
	377	if (qdev->rom->client_capabilities[byte] & (1 << idx))
	378	return 0;
	379	return -ENOSYS;
	380	}
	381
66755b48	382	int qxl_alloc_surf_ioctl(struct drm_device dev, void data, struct drm_file *file)
f64122c1	383	{
e304f8a0	384	struct qxl_device *qdev = to_qxl(dev);
f64122c1	385	struct drm_qxl_alloc_surf *param = data;
f64122c1 DA	386	int handle;
	387	int ret;
	388	int size, actual_stride;
	389	struct qxl_surface surf;
	390
	391	/* work out size allocate bo with handle */
	392	actual_stride = param->stride < 0 ? -param->stride : param->stride;
	393	size = actual_stride * param->height + actual_stride;
	394
	395	surf.format = param->format;
	396	surf.width = param->width;
	397	surf.height = param->height;
	398	surf.stride = param->stride;
	399	surf.data = 0;
	400
	401	ret = qxl_gem_object_create_with_handle(qdev, file,
	402	QXL_GEM_DOMAIN_SURFACE,
	403	size,
	404	&surf,
c611589b	405	NULL, &handle);
f64122c1 DA	406	if (ret) {
	407	DRM_ERROR("%s: failed to create gem ret=%d\n",
	408	__func__, ret);
	409	return -ENOMEM;
	410	} else
	411	param->handle = handle;
	412	return ret;
	413	}