[net-next-2.6.git] / drivers / gpu / drm / radeon / radeon_gem.c

/*
 * Copyright 2008 Advanced Micro Devices, Inc.
 * Copyright 2008 Red Hat Inc.
 * Copyright 2009 Jerome Glisse.
 *
 * 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
 *          Alex Deucher
 *          Jerome Glisse
 */
#include "drmP.h"
#include "drm.h"
#include "radeon_drm.h"
#include "radeon.h"

int radeon_gem_object_init(struct drm_gem_object *obj)
{
	/* we do nothings here */
	return 0;
}

void radeon_gem_object_free(struct drm_gem_object *gobj)
{
	struct radeon_bo *robj = gobj->driver_private;

	gobj->driver_private = NULL;
	if (robj) {
		radeon_bo_unref(&robj);
	}

	drm_gem_object_release(gobj);
	kfree(gobj);
}

int radeon_gem_object_create(struct radeon_device *rdev, int size,
				int alignment, int initial_domain,
				bool discardable, bool kernel,
				struct drm_gem_object **obj)
{
	struct drm_gem_object *gobj;
	struct radeon_bo *robj;
	int r;

	*obj = NULL;
	gobj = drm_gem_object_alloc(rdev->ddev, size);
	if (!gobj) {
		return -ENOMEM;
	}
	/* At least align on page size */
	if (alignment < PAGE_SIZE) {
		alignment = PAGE_SIZE;
	}
	r = radeon_bo_create(rdev, gobj, size, kernel, initial_domain, &robj);
	if (r) {
		if (r != -ERESTARTSYS)
			DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n",
				  size, initial_domain, alignment, r);
		drm_gem_object_unreference_unlocked(gobj);
		return r;
	}
	gobj->driver_private = robj;
	*obj = gobj;
	return 0;
}

int radeon_gem_object_pin(struct drm_gem_object *obj, uint32_t pin_domain,
			  uint64_t *gpu_addr)
{
	struct radeon_bo *robj = obj->driver_private;
	int r;

	r = radeon_bo_reserve(robj, false);
	if (unlikely(r != 0))
		return r;
	r = radeon_bo_pin(robj, pin_domain, gpu_addr);
	radeon_bo_unreserve(robj);
	return r;
}

void radeon_gem_object_unpin(struct drm_gem_object *obj)
{
	struct radeon_bo *robj = obj->driver_private;
	int r;

	r = radeon_bo_reserve(robj, false);
	if (likely(r == 0)) {
		radeon_bo_unpin(robj);
		radeon_bo_unreserve(robj);
	}
}

int radeon_gem_set_domain(struct drm_gem_object *gobj,
			  uint32_t rdomain, uint32_t wdomain)
{
	struct radeon_bo *robj;
	uint32_t domain;
	int r;

	/* FIXME: reeimplement */
	robj = gobj->driver_private;
	/* work out where to validate the buffer to */
	domain = wdomain;
	if (!domain) {
		domain = rdomain;
	}
	if (!domain) {
		/* Do nothings */
		printk(KERN_WARNING "Set domain withou domain !\n");
		return 0;
	}
	if (domain == RADEON_GEM_DOMAIN_CPU) {
		/* Asking for cpu access wait for object idle */
		r = radeon_bo_wait(robj, NULL, false);
		if (r) {
			printk(KERN_ERR "Failed to wait for object !\n");
			return r;
		}
	}
	return 0;
}

int radeon_gem_init(struct radeon_device *rdev)
{
	INIT_LIST_HEAD(&rdev->gem.objects);
	return 0;
}

void radeon_gem_fini(struct radeon_device *rdev)
{
	radeon_bo_force_delete(rdev);
}


/*
 * GEM ioctls.
 */
int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
			  struct drm_file *filp)
{
	struct radeon_device *rdev = dev->dev_private;
	struct drm_radeon_gem_info *args = data;

	args->vram_size = rdev->mc.real_vram_size;
	args->vram_visible = rdev->mc.real_vram_size;
	if (rdev->stollen_vga_memory)
		args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory);
	args->vram_visible -= radeon_fbdev_total_size(rdev);
	args->gart_size = rdev->mc.gtt_size - rdev->cp.ring_size - 4096 -
		RADEON_IB_POOL_SIZE*64*1024;
	return 0;
}

int radeon_gem_pread_ioctl(struct drm_device *dev, void *data,
			   struct drm_file *filp)
{
	/* TODO: implement */
	DRM_ERROR("unimplemented %s\n", __func__);
	return -ENOSYS;
}

int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data,
			    struct drm_file *filp)
{
	/* TODO: implement */
	DRM_ERROR("unimplemented %s\n", __func__);
	return -ENOSYS;
}

int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
			    struct drm_file *filp)
{
	struct radeon_device *rdev = dev->dev_private;
	struct drm_radeon_gem_create *args = data;
	struct drm_gem_object *gobj;
	uint32_t handle;
	int r;

	/* create a gem object to contain this object in */
	args->size = roundup(args->size, PAGE_SIZE);
	r = radeon_gem_object_create(rdev, args->size, args->alignment,
					args->initial_domain, false,
					false, &gobj);
	if (r) {
		return r;
	}
	r = drm_gem_handle_create(filp, gobj, &handle);
	/* drop reference from allocate - handle holds it now */
	drm_gem_object_unreference_unlocked(gobj);
	if (r) {
		return r;
	}
	args->handle = handle;
	return 0;
}

int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
				struct drm_file *filp)
{
	/* transition the BO to a domain -
	 * just validate the BO into a certain domain */
	struct drm_radeon_gem_set_domain *args = data;
	struct drm_gem_object *gobj;
	struct radeon_bo *robj;
	int r;

	/* for now if someone requests domain CPU -
	 * just make sure the buffer is finished with */

	/* just do a BO wait for now */
	gobj = drm_gem_object_lookup(dev, filp, args->handle);
	if (gobj == NULL) {
		return -ENOENT;
	}
	robj = gobj->driver_private;

	r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain);

	drm_gem_object_unreference_unlocked(gobj);
	return r;
}

int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
			  struct drm_file *filp)
{
	struct drm_radeon_gem_mmap *args = data;
	struct drm_gem_object *gobj;
	struct radeon_bo *robj;

	gobj = drm_gem_object_lookup(dev, filp, args->handle);
	if (gobj == NULL) {
		return -ENOENT;
	}
	robj = gobj->driver_private;
	args->addr_ptr = radeon_bo_mmap_offset(robj);
	drm_gem_object_unreference_unlocked(gobj);
	return 0;
}

int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
			  struct drm_file *filp)
{
	struct drm_radeon_gem_busy *args = data;
	struct drm_gem_object *gobj;
	struct radeon_bo *robj;
	int r;
	uint32_t cur_placement = 0;

	gobj = drm_gem_object_lookup(dev, filp, args->handle);
	if (gobj == NULL) {
		return -ENOENT;
	}
	robj = gobj->driver_private;
	r = radeon_bo_wait(robj, &cur_placement, true);
	switch (cur_placement) {
	case TTM_PL_VRAM:
		args->domain = RADEON_GEM_DOMAIN_VRAM;
		break;
	case TTM_PL_TT:
		args->domain = RADEON_GEM_DOMAIN_GTT;
		break;
	case TTM_PL_SYSTEM:
		args->domain = RADEON_GEM_DOMAIN_CPU;
	default:
		break;
	}
	drm_gem_object_unreference_unlocked(gobj);
	return r;
}

int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
			      struct drm_file *filp)
{
	struct drm_radeon_gem_wait_idle *args = data;
	struct drm_gem_object *gobj;
	struct radeon_bo *robj;
	int r;

	gobj = drm_gem_object_lookup(dev, filp, args->handle);
	if (gobj == NULL) {
		return -ENOENT;
	}
	robj = gobj->driver_private;
	r = radeon_bo_wait(robj, NULL, false);
	/* callback hw specific functions if any */
	if (robj->rdev->asic->ioctl_wait_idle)
		robj->rdev->asic->ioctl_wait_idle(robj->rdev, robj);
	drm_gem_object_unreference_unlocked(gobj);
	return r;
}

int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
				struct drm_file *filp)
{
	struct drm_radeon_gem_set_tiling *args = data;
	struct drm_gem_object *gobj;
	struct radeon_bo *robj;
	int r = 0;

	DRM_DEBUG("%d \n", args->handle);
	gobj = drm_gem_object_lookup(dev, filp, args->handle);
	if (gobj == NULL)
		return -ENOENT;
	robj = gobj->driver_private;
	r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch);
	drm_gem_object_unreference_unlocked(gobj);
	return r;
}

int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
				struct drm_file *filp)
{
	struct drm_radeon_gem_get_tiling *args = data;
	struct drm_gem_object *gobj;
	struct radeon_bo *rbo;
	int r = 0;

	DRM_DEBUG("\n");
	gobj = drm_gem_object_lookup(dev, filp, args->handle);
	if (gobj == NULL)
		return -ENOENT;
	rbo = gobj->driver_private;
	r = radeon_bo_reserve(rbo, false);
	if (unlikely(r != 0))
		goto out;
	radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch);
	radeon_bo_unreserve(rbo);
out:
	drm_gem_object_unreference_unlocked(gobj);
	return r;
}
Commit	Line	Data
771fe6b9 JG	1	/*
	2	* Copyright 2008 Advanced Micro Devices, Inc.
	3	* Copyright 2008 Red Hat Inc.
	4	* Copyright 2009 Jerome Glisse.
	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining a
	7	* copy of this software and associated documentation files (the "Software"),
	8	* to deal in the Software without restriction, including without limitation
	9	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	10	* and/or sell copies of the Software, and to permit persons to whom the
	11	* Software is furnished to do so, subject to the following conditions:
	12	*
	13	* The above copyright notice and this permission notice shall be included in
	14	* all copies or substantial portions of the Software.
	15	*
	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	19	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	20	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	21	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	22	* OTHER DEALINGS IN THE SOFTWARE.
	23	*
	24	* Authors: Dave Airlie
	25	* Alex Deucher
	26	* Jerome Glisse
	27	*/
	28	#include "drmP.h"
	29	#include "drm.h"
	30	#include "radeon_drm.h"
	31	#include "radeon.h"
	32
	33	int radeon_gem_object_init(struct drm_gem_object *obj)
	34	{
	35	/* we do nothings here */
	36	return 0;
	37	}
	38
	39	void radeon_gem_object_free(struct drm_gem_object *gobj)
	40	{
4c788679	41	struct radeon_bo *robj = gobj->driver_private;
771fe6b9 JG	42
	43	gobj->driver_private = NULL;
	44	if (robj) {
4c788679	45	radeon_bo_unref(&robj);
771fe6b9	46	}
fd632aa3 DV	47
	48	drm_gem_object_release(gobj);
	49	kfree(gobj);
771fe6b9 JG	50	}
	51
	52	int radeon_gem_object_create(struct radeon_device *rdev, int size,
4c788679 JG	53	int alignment, int initial_domain,
	54	bool discardable, bool kernel,
	55	struct drm_gem_object **obj)
771fe6b9 JG	56	{
771fe6b9 JG	57	struct drm_gem_object *gobj;
4c788679	58	struct radeon_bo *robj;
771fe6b9 JG	59	int r;
	60
	61	*obj = NULL;
	62	gobj = drm_gem_object_alloc(rdev->ddev, size);
	63	if (!gobj) {
	64	return -ENOMEM;
	65	}
	66	/* At least align on page size */
	67	if (alignment < PAGE_SIZE) {
	68	alignment = PAGE_SIZE;
	69	}
4c788679	70	r = radeon_bo_create(rdev, gobj, size, kernel, initial_domain, &robj);
771fe6b9	71	if (r) {
ecabd32a DA	72	if (r != -ERESTARTSYS)
	73	DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n",
	74	size, initial_domain, alignment, r);
bc9025bd	75	drm_gem_object_unreference_unlocked(gobj);
771fe6b9 JG	76	return r;
	77	}
	78	gobj->driver_private = robj;
	79	*obj = gobj;
	80	return 0;
	81	}
	82
	83	int radeon_gem_object_pin(struct drm_gem_object *obj, uint32_t pin_domain,
	84	uint64_t *gpu_addr)
	85	{
4c788679 JG	86	struct radeon_bo *robj = obj->driver_private;
4c788679 JG	87	int r;
771fe6b9	88
4c788679 JG	89	r = radeon_bo_reserve(robj, false);
	90	if (unlikely(r != 0))
	91	return r;
	92	r = radeon_bo_pin(robj, pin_domain, gpu_addr);
	93	radeon_bo_unreserve(robj);
	94	return r;
771fe6b9 JG	95	}
	96
	97	void radeon_gem_object_unpin(struct drm_gem_object *obj)
	98	{
4c788679 JG	99	struct radeon_bo *robj = obj->driver_private;
	100	int r;
	101
	102	r = radeon_bo_reserve(robj, false);
	103	if (likely(r == 0)) {
	104	radeon_bo_unpin(robj);
	105	radeon_bo_unreserve(robj);
	106	}
771fe6b9 JG	107	}
	108
	109	int radeon_gem_set_domain(struct drm_gem_object *gobj,
	110	uint32_t rdomain, uint32_t wdomain)
	111	{
4c788679	112	struct radeon_bo *robj;
771fe6b9 JG	113	uint32_t domain;
	114	int r;
	115
	116	/* FIXME: reeimplement */
	117	robj = gobj->driver_private;
	118	/* work out where to validate the buffer to */
	119	domain = wdomain;
	120	if (!domain) {
	121	domain = rdomain;
	122	}
	123	if (!domain) {
	124	/* Do nothings */
	125	printk(KERN_WARNING "Set domain withou domain !\n");
	126	return 0;
	127	}
	128	if (domain == RADEON_GEM_DOMAIN_CPU) {
	129	/* Asking for cpu access wait for object idle */
4c788679	130	r = radeon_bo_wait(robj, NULL, false);
771fe6b9 JG	131	if (r) {
	132	printk(KERN_ERR "Failed to wait for object !\n");
	133	return r;
	134	}
	135	}
	136	return 0;
	137	}
	138
	139	int radeon_gem_init(struct radeon_device *rdev)
	140	{
	141	INIT_LIST_HEAD(&rdev->gem.objects);
	142	return 0;
	143	}
	144
	145	void radeon_gem_fini(struct radeon_device *rdev)
	146	{
4c788679	147	radeon_bo_force_delete(rdev);
771fe6b9 JG	148	}
	149
	150
	151	/*
	152	* GEM ioctls.
	153	*/
	154	int radeon_gem_info_ioctl(struct drm_device dev, void data,
	155	struct drm_file *filp)
	156	{
	157	struct radeon_device *rdev = dev->dev_private;
	158	struct drm_radeon_gem_info *args = data;
	159
7a50f01a	160	args->vram_size = rdev->mc.real_vram_size;
38e14921 MD	161	args->vram_visible = rdev->mc.real_vram_size;
38e14921 MD	162	if (rdev->stollen_vga_memory)
4c788679	163	args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory);
38651674	164	args->vram_visible -= radeon_fbdev_total_size(rdev);
38e14921 MD	165	args->gart_size = rdev->mc.gtt_size - rdev->cp.ring_size - 4096 -
38e14921 MD	166	RADEON_IB_POOL_SIZE641024;
771fe6b9 JG	167	return 0;
	168	}
	169
	170	int radeon_gem_pread_ioctl(struct drm_device dev, void data,
	171	struct drm_file *filp)
	172	{
	173	/* TODO: implement */
	174	DRM_ERROR("unimplemented %s\n", __func__);
	175	return -ENOSYS;
	176	}
	177
	178	int radeon_gem_pwrite_ioctl(struct drm_device dev, void data,
	179	struct drm_file *filp)
	180	{
	181	/* TODO: implement */
	182	DRM_ERROR("unimplemented %s\n", __func__);
	183	return -ENOSYS;
	184	}
	185
	186	int radeon_gem_create_ioctl(struct drm_device dev, void data,
	187	struct drm_file *filp)
	188	{
	189	struct radeon_device *rdev = dev->dev_private;
	190	struct drm_radeon_gem_create *args = data;
	191	struct drm_gem_object *gobj;
	192	uint32_t handle;
	193	int r;
	194
	195	/* create a gem object to contain this object in */
	196	args->size = roundup(args->size, PAGE_SIZE);
	197	r = radeon_gem_object_create(rdev, args->size, args->alignment,
4c788679 JG	198	args->initial_domain, false,
4c788679 JG	199	false, &gobj);
771fe6b9 JG	200	if (r) {
	201	return r;
	202	}
	203	r = drm_gem_handle_create(filp, gobj, &handle);
29d08b3e DA	204	/* drop reference from allocate - handle holds it now */
29d08b3e DA	205	drm_gem_object_unreference_unlocked(gobj);
771fe6b9	206	if (r) {
771fe6b9 JG	207	return r;
771fe6b9 JG	208	}
771fe6b9 JG	209	args->handle = handle;
	210	return 0;
	211	}
	212
	213	int radeon_gem_set_domain_ioctl(struct drm_device dev, void data,
	214	struct drm_file *filp)
	215	{
	216	/* transition the BO to a domain -
	217	* just validate the BO into a certain domain */
	218	struct drm_radeon_gem_set_domain *args = data;
	219	struct drm_gem_object *gobj;
4c788679	220	struct radeon_bo *robj;
771fe6b9 JG	221	int r;
	222
	223	/* for now if someone requests domain CPU -
	224	* just make sure the buffer is finished with */
	225
	226	/* just do a BO wait for now */
	227	gobj = drm_gem_object_lookup(dev, filp, args->handle);
	228	if (gobj == NULL) {
bf79cb91	229	return -ENOENT;
771fe6b9 JG	230	}
	231	robj = gobj->driver_private;
	232
	233	r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain);
	234
bc9025bd	235	drm_gem_object_unreference_unlocked(gobj);
771fe6b9 JG	236	return r;
	237	}
	238
	239	int radeon_gem_mmap_ioctl(struct drm_device dev, void data,
	240	struct drm_file *filp)
	241	{
	242	struct drm_radeon_gem_mmap *args = data;
	243	struct drm_gem_object *gobj;
4c788679	244	struct radeon_bo *robj;
771fe6b9 JG	245
	246	gobj = drm_gem_object_lookup(dev, filp, args->handle);
	247	if (gobj == NULL) {
bf79cb91	248	return -ENOENT;
771fe6b9 JG	249	}
771fe6b9 JG	250	robj = gobj->driver_private;
4c788679	251	args->addr_ptr = radeon_bo_mmap_offset(robj);
bc9025bd	252	drm_gem_object_unreference_unlocked(gobj);
4c788679	253	return 0;
771fe6b9 JG	254	}
	255
	256	int radeon_gem_busy_ioctl(struct drm_device dev, void data,
	257	struct drm_file *filp)
	258	{
cefb87ef DA	259	struct drm_radeon_gem_busy *args = data;
cefb87ef DA	260	struct drm_gem_object *gobj;
4c788679	261	struct radeon_bo *robj;
cefb87ef	262	int r;
4361e52a	263	uint32_t cur_placement = 0;
cefb87ef DA	264
	265	gobj = drm_gem_object_lookup(dev, filp, args->handle);
	266	if (gobj == NULL) {
bf79cb91	267	return -ENOENT;
cefb87ef DA	268	}
cefb87ef DA	269	robj = gobj->driver_private;
4c788679	270	r = radeon_bo_wait(robj, &cur_placement, true);
9f844e51 MD	271	switch (cur_placement) {
9f844e51 MD	272	case TTM_PL_VRAM:
cefb87ef	273	args->domain = RADEON_GEM_DOMAIN_VRAM;
9f844e51 MD	274	break;
9f844e51 MD	275	case TTM_PL_TT:
cefb87ef	276	args->domain = RADEON_GEM_DOMAIN_GTT;
9f844e51 MD	277	break;
9f844e51 MD	278	case TTM_PL_SYSTEM:
cefb87ef	279	args->domain = RADEON_GEM_DOMAIN_CPU;
9f844e51 MD	280	default:
	281	break;
	282	}
bc9025bd	283	drm_gem_object_unreference_unlocked(gobj);
e3b2415e	284	return r;
771fe6b9 JG	285	}
	286
	287	int radeon_gem_wait_idle_ioctl(struct drm_device dev, void data,
	288	struct drm_file *filp)
	289	{
	290	struct drm_radeon_gem_wait_idle *args = data;
	291	struct drm_gem_object *gobj;
4c788679	292	struct radeon_bo *robj;
771fe6b9 JG	293	int r;
	294
	295	gobj = drm_gem_object_lookup(dev, filp, args->handle);
	296	if (gobj == NULL) {
bf79cb91	297	return -ENOENT;
771fe6b9 JG	298	}
771fe6b9 JG	299	robj = gobj->driver_private;
4c788679	300	r = radeon_bo_wait(robj, NULL, false);
062b389c JG	301	/* callback hw specific functions if any */
	302	if (robj->rdev->asic->ioctl_wait_idle)
	303	robj->rdev->asic->ioctl_wait_idle(robj->rdev, robj);
bc9025bd	304	drm_gem_object_unreference_unlocked(gobj);
771fe6b9 JG	305	return r;
771fe6b9 JG	306	}
e024e110 DA	307
	308	int radeon_gem_set_tiling_ioctl(struct drm_device dev, void data,
	309	struct drm_file *filp)
	310	{
	311	struct drm_radeon_gem_set_tiling *args = data;
	312	struct drm_gem_object *gobj;
4c788679	313	struct radeon_bo *robj;
e024e110 DA	314	int r = 0;
	315
	316	DRM_DEBUG("%d \n", args->handle);
	317	gobj = drm_gem_object_lookup(dev, filp, args->handle);
	318	if (gobj == NULL)
bf79cb91	319	return -ENOENT;
e024e110	320	robj = gobj->driver_private;
4c788679	321	r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch);
bc9025bd	322	drm_gem_object_unreference_unlocked(gobj);
e024e110 DA	323	return r;
	324	}
	325
	326	int radeon_gem_get_tiling_ioctl(struct drm_device dev, void data,
	327	struct drm_file *filp)
	328	{
	329	struct drm_radeon_gem_get_tiling *args = data;
	330	struct drm_gem_object *gobj;
4c788679	331	struct radeon_bo *rbo;
e024e110 DA	332	int r = 0;
	333
	334	DRM_DEBUG("\n");
	335	gobj = drm_gem_object_lookup(dev, filp, args->handle);
	336	if (gobj == NULL)
bf79cb91	337	return -ENOENT;
4c788679 JG	338	rbo = gobj->driver_private;
	339	r = radeon_bo_reserve(rbo, false);
	340	if (unlikely(r != 0))
51f07b7e	341	goto out;
4c788679 JG	342	radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch);
4c788679 JG	343	radeon_bo_unreserve(rbo);
51f07b7e	344	out:
bc9025bd	345	drm_gem_object_unreference_unlocked(gobj);
e024e110 DA	346	return r;
e024e110 DA	347	}