[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / gpu / drm / radeon / radeon_object.c

/*
 * Copyright 2009 Jerome Glisse.
 * 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 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.
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 */
/*
 * Authors:
 *    Jerome Glisse <glisse@freedesktop.org>
 *    Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
 *    Dave Airlie
 */
#include <linux/list.h>
#include <linux/slab.h>
#include <drm/drmP.h>
#include "radeon_drm.h"
#include "radeon.h"


int radeon_ttm_init(struct radeon_device *rdev);
void radeon_ttm_fini(struct radeon_device *rdev);
static void radeon_bo_clear_surface_reg(struct radeon_bo *bo);

/*
 * To exclude mutual BO access we rely on bo_reserve exclusion, as all
 * function are calling it.
 */

static void radeon_ttm_bo_destroy(struct ttm_buffer_object *tbo)
{
	struct radeon_bo *bo;

	bo = container_of(tbo, struct radeon_bo, tbo);
	mutex_lock(&bo->rdev->gem.mutex);
	list_del_init(&bo->list);
	mutex_unlock(&bo->rdev->gem.mutex);
	radeon_bo_clear_surface_reg(bo);
	kfree(bo);
}

bool radeon_ttm_bo_is_radeon_bo(struct ttm_buffer_object *bo)
{
	if (bo->destroy == &radeon_ttm_bo_destroy)
		return true;
	return false;
}

void radeon_ttm_placement_from_domain(struct radeon_bo *rbo, u32 domain)
{
	u32 c = 0;

	rbo->placement.fpfn = 0;
	rbo->placement.lpfn = 0;
	rbo->placement.placement = rbo->placements;
	rbo->placement.busy_placement = rbo->placements;
	if (domain & RADEON_GEM_DOMAIN_VRAM)
		rbo->placements[c++] = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED |
					TTM_PL_FLAG_VRAM;
	if (domain & RADEON_GEM_DOMAIN_GTT)
		rbo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT;
	if (domain & RADEON_GEM_DOMAIN_CPU)
		rbo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
	if (!c)
		rbo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
	rbo->placement.num_placement = c;
	rbo->placement.num_busy_placement = c;
}

int radeon_bo_create(struct radeon_device *rdev, struct drm_gem_object *gobj,
			unsigned long size, bool kernel, u32 domain,
			struct radeon_bo **bo_ptr)
{
	struct radeon_bo *bo;
	enum ttm_bo_type type;
	int r;

	if (unlikely(rdev->mman.bdev.dev_mapping == NULL)) {
		rdev->mman.bdev.dev_mapping = rdev->ddev->dev_mapping;
	}
	if (kernel) {
		type = ttm_bo_type_kernel;
	} else {
		type = ttm_bo_type_device;
	}
	*bo_ptr = NULL;
	bo = kzalloc(sizeof(struct radeon_bo), GFP_KERNEL);
	if (bo == NULL)
		return -ENOMEM;
	bo->rdev = rdev;
	bo->gobj = gobj;
	bo->surface_reg = -1;
	INIT_LIST_HEAD(&bo->list);

	radeon_ttm_placement_from_domain(bo, domain);
	/* Kernel allocation are uninterruptible */
	r = ttm_bo_init(&rdev->mman.bdev, &bo->tbo, size, type,
			&bo->placement, 0, 0, !kernel, NULL, size,
			&radeon_ttm_bo_destroy);
	if (unlikely(r != 0)) {
		if (r != -ERESTARTSYS)
			dev_err(rdev->dev,
				"object_init failed for (%lu, 0x%08X)\n",
				size, domain);
		return r;
	}
	*bo_ptr = bo;
	if (gobj) {
		mutex_lock(&bo->rdev->gem.mutex);
		list_add_tail(&bo->list, &rdev->gem.objects);
		mutex_unlock(&bo->rdev->gem.mutex);
	}
	return 0;
}

int radeon_bo_kmap(struct radeon_bo *bo, void **ptr)
{
	bool is_iomem;
	int r;

	if (bo->kptr) {
		if (ptr) {
			*ptr = bo->kptr;
		}
		return 0;
	}
	r = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.num_pages, &bo->kmap);
	if (r) {
		return r;
	}
	bo->kptr = ttm_kmap_obj_virtual(&bo->kmap, &is_iomem);
	if (ptr) {
		*ptr = bo->kptr;
	}
	radeon_bo_check_tiling(bo, 0, 0);
	return 0;
}

void radeon_bo_kunmap(struct radeon_bo *bo)
{
	if (bo->kptr == NULL)
		return;
	bo->kptr = NULL;
	radeon_bo_check_tiling(bo, 0, 0);
	ttm_bo_kunmap(&bo->kmap);
}

void radeon_bo_unref(struct radeon_bo **bo)
{
	struct ttm_buffer_object *tbo;

	if ((*bo) == NULL)
		return;
	tbo = &((*bo)->tbo);
	ttm_bo_unref(&tbo);
	if (tbo == NULL)
		*bo = NULL;
}

int radeon_bo_pin(struct radeon_bo *bo, u32 domain, u64 *gpu_addr)
{
	int r, i;

	if (bo->pin_count) {
		bo->pin_count++;
		if (gpu_addr)
			*gpu_addr = radeon_bo_gpu_offset(bo);
		return 0;
	}
	radeon_ttm_placement_from_domain(bo, domain);
	/* force to pin into visible video ram */
	bo->placement.lpfn = bo->rdev->mc.visible_vram_size >> PAGE_SHIFT;
	for (i = 0; i < bo->placement.num_placement; i++)
		bo->placements[i] |= TTM_PL_FLAG_NO_EVICT;
	r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
	if (likely(r == 0)) {
		bo->pin_count = 1;
		if (gpu_addr != NULL)
			*gpu_addr = radeon_bo_gpu_offset(bo);
	}
	if (unlikely(r != 0))
		dev_err(bo->rdev->dev, "%p pin failed\n", bo);
	return r;
}

int radeon_bo_unpin(struct radeon_bo *bo)
{
	int r, i;

	if (!bo->pin_count) {
		dev_warn(bo->rdev->dev, "%p unpin not necessary\n", bo);
		return 0;
	}
	bo->pin_count--;
	if (bo->pin_count)
		return 0;
	for (i = 0; i < bo->placement.num_placement; i++)
		bo->placements[i] &= ~TTM_PL_FLAG_NO_EVICT;
	r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
	if (unlikely(r != 0))
		dev_err(bo->rdev->dev, "%p validate failed for unpin\n", bo);
	return r;
}

int radeon_bo_evict_vram(struct radeon_device *rdev)
{
	/* late 2.6.33 fix IGP hibernate - we need pm ops to do this correct */
	if (0 && (rdev->flags & RADEON_IS_IGP)) {
		if (rdev->mc.igp_sideport_enabled == false)
			/* Useless to evict on IGP chips */
			return 0;
	}
	return ttm_bo_evict_mm(&rdev->mman.bdev, TTM_PL_VRAM);
}

void radeon_bo_force_delete(struct radeon_device *rdev)
{
	struct radeon_bo *bo, *n;
	struct drm_gem_object *gobj;

	if (list_empty(&rdev->gem.objects)) {
		return;
	}
	dev_err(rdev->dev, "Userspace still has active objects !\n");
	list_for_each_entry_safe(bo, n, &rdev->gem.objects, list) {
		mutex_lock(&rdev->ddev->struct_mutex);
		gobj = bo->gobj;
		dev_err(rdev->dev, "%p %p %lu %lu force free\n",
			gobj, bo, (unsigned long)gobj->size,
			*((unsigned long *)&gobj->refcount));
		mutex_lock(&bo->rdev->gem.mutex);
		list_del_init(&bo->list);
		mutex_unlock(&bo->rdev->gem.mutex);
		radeon_bo_unref(&bo);
		gobj->driver_private = NULL;
		drm_gem_object_unreference(gobj);
		mutex_unlock(&rdev->ddev->struct_mutex);
	}
}

int radeon_bo_init(struct radeon_device *rdev)
{
	/* Add an MTRR for the VRAM */
	rdev->mc.vram_mtrr = mtrr_add(rdev->mc.aper_base, rdev->mc.aper_size,
			MTRR_TYPE_WRCOMB, 1);
	DRM_INFO("Detected VRAM RAM=%lluM, BAR=%lluM\n",
		rdev->mc.mc_vram_size >> 20,
		(unsigned long long)rdev->mc.aper_size >> 20);
	DRM_INFO("RAM width %dbits %cDR\n",
			rdev->mc.vram_width, rdev->mc.vram_is_ddr ? 'D' : 'S');
	return radeon_ttm_init(rdev);
}

void radeon_bo_fini(struct radeon_device *rdev)
{
	radeon_ttm_fini(rdev);
}

void radeon_bo_list_add_object(struct radeon_bo_list *lobj,
				struct list_head *head)
{
	if (lobj->wdomain) {
		list_add(&lobj->list, head);
	} else {
		list_add_tail(&lobj->list, head);
	}
}

int radeon_bo_list_reserve(struct list_head *head)
{
	struct radeon_bo_list *lobj;
	int r;

	list_for_each_entry(lobj, head, list){
		r = radeon_bo_reserve(lobj->bo, false);
		if (unlikely(r != 0))
			return r;
	}
	return 0;
}

void radeon_bo_list_unreserve(struct list_head *head)
{
	struct radeon_bo_list *lobj;

	list_for_each_entry(lobj, head, list) {
		/* only unreserve object we successfully reserved */
		if (radeon_bo_is_reserved(lobj->bo))
			radeon_bo_unreserve(lobj->bo);
	}
}

int radeon_bo_list_validate(struct list_head *head)
{
	struct radeon_bo_list *lobj;
	struct radeon_bo *bo;
	int r;

	r = radeon_bo_list_reserve(head);
	if (unlikely(r != 0)) {
		return r;
	}
	list_for_each_entry(lobj, head, list) {
		bo = lobj->bo;
		if (!bo->pin_count) {
			if (lobj->wdomain) {
				radeon_ttm_placement_from_domain(bo,
								lobj->wdomain);
			} else {
				radeon_ttm_placement_from_domain(bo,
								lobj->rdomain);
			}
			r = ttm_bo_validate(&bo->tbo, &bo->placement,
						true, false);
			if (unlikely(r))
				return r;
		}
		lobj->gpu_offset = radeon_bo_gpu_offset(bo);
		lobj->tiling_flags = bo->tiling_flags;
	}
	return 0;
}

void radeon_bo_list_fence(struct list_head *head, void *fence)
{
	struct radeon_bo_list *lobj;
	struct radeon_bo *bo;
	struct radeon_fence *old_fence = NULL;

	list_for_each_entry(lobj, head, list) {
		bo = lobj->bo;
		spin_lock(&bo->tbo.lock);
		old_fence = (struct radeon_fence *)bo->tbo.sync_obj;
		bo->tbo.sync_obj = radeon_fence_ref(fence);
		bo->tbo.sync_obj_arg = NULL;
		spin_unlock(&bo->tbo.lock);
		if (old_fence) {
			radeon_fence_unref(&old_fence);
		}
	}
}

int radeon_bo_fbdev_mmap(struct radeon_bo *bo,
			     struct vm_area_struct *vma)
{
	return ttm_fbdev_mmap(vma, &bo->tbo);
}

int radeon_bo_get_surface_reg(struct radeon_bo *bo)
{
	struct radeon_device *rdev = bo->rdev;
	struct radeon_surface_reg *reg;
	struct radeon_bo *old_object;
	int steal;
	int i;

	BUG_ON(!atomic_read(&bo->tbo.reserved));

	if (!bo->tiling_flags)
		return 0;

	if (bo->surface_reg >= 0) {
		reg = &rdev->surface_regs[bo->surface_reg];
		i = bo->surface_reg;
		goto out;
	}

	steal = -1;
	for (i = 0; i < RADEON_GEM_MAX_SURFACES; i++) {

		reg = &rdev->surface_regs[i];
		if (!reg->bo)
			break;

		old_object = reg->bo;
		if (old_object->pin_count == 0)
			steal = i;
	}

	/* if we are all out */
	if (i == RADEON_GEM_MAX_SURFACES) {
		if (steal == -1)
			return -ENOMEM;
		/* find someone with a surface reg and nuke their BO */
		reg = &rdev->surface_regs[steal];
		old_object = reg->bo;
		/* blow away the mapping */
		DRM_DEBUG("stealing surface reg %d from %p\n", steal, old_object);
		ttm_bo_unmap_virtual(&old_object->tbo);
		old_object->surface_reg = -1;
		i = steal;
	}

	bo->surface_reg = i;
	reg->bo = bo;

out:
	radeon_set_surface_reg(rdev, i, bo->tiling_flags, bo->pitch,
			       bo->tbo.mem.mm_node->start << PAGE_SHIFT,
			       bo->tbo.num_pages << PAGE_SHIFT);
	return 0;
}

static void radeon_bo_clear_surface_reg(struct radeon_bo *bo)
{
	struct radeon_device *rdev = bo->rdev;
	struct radeon_surface_reg *reg;

	if (bo->surface_reg == -1)
		return;

	reg = &rdev->surface_regs[bo->surface_reg];
	radeon_clear_surface_reg(rdev, bo->surface_reg);

	reg->bo = NULL;
	bo->surface_reg = -1;
}

int radeon_bo_set_tiling_flags(struct radeon_bo *bo,
				uint32_t tiling_flags, uint32_t pitch)
{
	int r;

	r = radeon_bo_reserve(bo, false);
	if (unlikely(r != 0))
		return r;
	bo->tiling_flags = tiling_flags;
	bo->pitch = pitch;
	radeon_bo_unreserve(bo);
	return 0;
}

void radeon_bo_get_tiling_flags(struct radeon_bo *bo,
				uint32_t *tiling_flags,
				uint32_t *pitch)
{
	BUG_ON(!atomic_read(&bo->tbo.reserved));
	if (tiling_flags)
		*tiling_flags = bo->tiling_flags;
	if (pitch)
		*pitch = bo->pitch;
}

int radeon_bo_check_tiling(struct radeon_bo *bo, bool has_moved,
				bool force_drop)
{
	BUG_ON(!atomic_read(&bo->tbo.reserved));

	if (!(bo->tiling_flags & RADEON_TILING_SURFACE))
		return 0;

	if (force_drop) {
		radeon_bo_clear_surface_reg(bo);
		return 0;
	}

	if (bo->tbo.mem.mem_type != TTM_PL_VRAM) {
		if (!has_moved)
			return 0;

		if (bo->surface_reg >= 0)
			radeon_bo_clear_surface_reg(bo);
		return 0;
	}

	if ((bo->surface_reg >= 0) && !has_moved)
		return 0;

	return radeon_bo_get_surface_reg(bo);
}

void radeon_bo_move_notify(struct ttm_buffer_object *bo,
			   struct ttm_mem_reg *mem)
{
	struct radeon_bo *rbo;
	if (!radeon_ttm_bo_is_radeon_bo(bo))
		return;
	rbo = container_of(bo, struct radeon_bo, tbo);
	radeon_bo_check_tiling(rbo, 0, 1);
}

void radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
{
	struct radeon_bo *rbo;
	if (!radeon_ttm_bo_is_radeon_bo(bo))
		return;
	rbo = container_of(bo, struct radeon_bo, tbo);
	radeon_bo_check_tiling(rbo, 0, 0);
}
Commit	Line	Data
771fe6b9 JG	1	/*
	2	* Copyright 2009 Jerome Glisse.
	3	* All Rights Reserved.
	4	*
	5	* Permission is hereby granted, free of charge, to any person obtaining a
	6	* copy of this software and associated documentation files (the
	7	* "Software"), to deal in the Software without restriction, including
	8	* without limitation the rights to use, copy, modify, merge, publish,
	9	* distribute, sub license, and/or sell copies of the Software, and to
	10	* permit persons to whom the Software is furnished to do so, subject to
	11	* the following conditions:
	12	*
	13	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	14	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	15	* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
	16	* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
	17	* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
	18	* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
	19	* USE OR OTHER DEALINGS IN THE SOFTWARE.
	20	*
	21	* The above copyright notice and this permission notice (including the
	22	* next paragraph) shall be included in all copies or substantial portions
	23	* of the Software.
	24	*
	25	*/
	26	/*
	27	* Authors:
	28	* Jerome Glisse <glisse@freedesktop.org>
	29	* Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
	30	* Dave Airlie
	31	*/
	32	#include <linux/list.h>
5a0e3ad6	33	#include <linux/slab.h>
771fe6b9 JG	34	#include <drm/drmP.h>
	35	#include "radeon_drm.h"
	36	#include "radeon.h"
	37
771fe6b9 JG	38
	39	int radeon_ttm_init(struct radeon_device *rdev);
	40	void radeon_ttm_fini(struct radeon_device *rdev);
4c788679	41	static void radeon_bo_clear_surface_reg(struct radeon_bo *bo);
771fe6b9 JG	42
	43	/*
	44	* To exclude mutual BO access we rely on bo_reserve exclusion, as all
	45	* function are calling it.
	46	*/
	47
4c788679	48	static void radeon_ttm_bo_destroy(struct ttm_buffer_object *tbo)
771fe6b9	49	{
4c788679	50	struct radeon_bo *bo;
771fe6b9	51
4c788679 JG	52	bo = container_of(tbo, struct radeon_bo, tbo);
	53	mutex_lock(&bo->rdev->gem.mutex);
	54	list_del_init(&bo->list);
	55	mutex_unlock(&bo->rdev->gem.mutex);
	56	radeon_bo_clear_surface_reg(bo);
	57	kfree(bo);
771fe6b9 JG	58	}
771fe6b9 JG	59
d03d8589 JG	60	bool radeon_ttm_bo_is_radeon_bo(struct ttm_buffer_object *bo)
	61	{
	62	if (bo->destroy == &radeon_ttm_bo_destroy)
	63	return true;
	64	return false;
	65	}
	66
312ea8da JG	67	void radeon_ttm_placement_from_domain(struct radeon_bo *rbo, u32 domain)
	68	{
	69	u32 c = 0;
	70
	71	rbo->placement.fpfn = 0;
	72	rbo->placement.lpfn = 0;
	73	rbo->placement.placement = rbo->placements;
	74	rbo->placement.busy_placement = rbo->placements;
	75	if (domain & RADEON_GEM_DOMAIN_VRAM)
	76	rbo->placements[c++] = TTM_PL_FLAG_WC \| TTM_PL_FLAG_UNCACHED \|
	77	TTM_PL_FLAG_VRAM;
	78	if (domain & RADEON_GEM_DOMAIN_GTT)
	79	rbo->placements[c++] = TTM_PL_MASK_CACHING \| TTM_PL_FLAG_TT;
	80	if (domain & RADEON_GEM_DOMAIN_CPU)
	81	rbo->placements[c++] = TTM_PL_MASK_CACHING \| TTM_PL_FLAG_SYSTEM;
9fb03e63 JG	82	if (!c)
9fb03e63 JG	83	rbo->placements[c++] = TTM_PL_MASK_CACHING \| TTM_PL_FLAG_SYSTEM;
312ea8da JG	84	rbo->placement.num_placement = c;
	85	rbo->placement.num_busy_placement = c;
	86	}
	87
4c788679 JG	88	int radeon_bo_create(struct radeon_device rdev, struct drm_gem_object gobj,
	89	unsigned long size, bool kernel, u32 domain,
	90	struct radeon_bo **bo_ptr)
771fe6b9	91	{
4c788679	92	struct radeon_bo *bo;
771fe6b9	93	enum ttm_bo_type type;
771fe6b9 JG	94	int r;
	95
	96	if (unlikely(rdev->mman.bdev.dev_mapping == NULL)) {
	97	rdev->mman.bdev.dev_mapping = rdev->ddev->dev_mapping;
	98	}
	99	if (kernel) {
	100	type = ttm_bo_type_kernel;
	101	} else {
	102	type = ttm_bo_type_device;
	103	}
4c788679 JG	104	*bo_ptr = NULL;
	105	bo = kzalloc(sizeof(struct radeon_bo), GFP_KERNEL);
	106	if (bo == NULL)
771fe6b9	107	return -ENOMEM;
4c788679 JG	108	bo->rdev = rdev;
	109	bo->gobj = gobj;
	110	bo->surface_reg = -1;
	111	INIT_LIST_HEAD(&bo->list);
	112
1fb107fc	113	radeon_ttm_placement_from_domain(bo, domain);
5cc6fbab	114	/* Kernel allocation are uninterruptible */
1fb107fc JG	115	r = ttm_bo_init(&rdev->mman.bdev, &bo->tbo, size, type,
	116	&bo->placement, 0, 0, !kernel, NULL, size,
	117	&radeon_ttm_bo_destroy);
771fe6b9	118	if (unlikely(r != 0)) {
5cc6fbab TH	119	if (r != -ERESTARTSYS)
5cc6fbab TH	120	dev_err(rdev->dev,
1fb107fc JG	121	"object_init failed for (%lu, 0x%08X)\n",
1fb107fc JG	122	size, domain);
771fe6b9 JG	123	return r;
771fe6b9 JG	124	}
4c788679	125	*bo_ptr = bo;
771fe6b9	126	if (gobj) {
4c788679 JG	127	mutex_lock(&bo->rdev->gem.mutex);
	128	list_add_tail(&bo->list, &rdev->gem.objects);
	129	mutex_unlock(&bo->rdev->gem.mutex);
771fe6b9 JG	130	}
	131	return 0;
	132	}
	133
4c788679	134	int radeon_bo_kmap(struct radeon_bo bo, void *ptr)
771fe6b9	135	{
4c788679	136	bool is_iomem;
771fe6b9 JG	137	int r;
771fe6b9 JG	138
4c788679	139	if (bo->kptr) {
771fe6b9	140	if (ptr) {
4c788679	141	*ptr = bo->kptr;
771fe6b9	142	}
771fe6b9 JG	143	return 0;
771fe6b9 JG	144	}
4c788679	145	r = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.num_pages, &bo->kmap);
771fe6b9 JG	146	if (r) {
	147	return r;
	148	}
4c788679	149	bo->kptr = ttm_kmap_obj_virtual(&bo->kmap, &is_iomem);
771fe6b9	150	if (ptr) {
4c788679	151	*ptr = bo->kptr;
771fe6b9	152	}
4c788679	153	radeon_bo_check_tiling(bo, 0, 0);
771fe6b9 JG	154	return 0;
	155	}
	156
4c788679	157	void radeon_bo_kunmap(struct radeon_bo *bo)
771fe6b9	158	{
4c788679	159	if (bo->kptr == NULL)
771fe6b9	160	return;
4c788679 JG	161	bo->kptr = NULL;
	162	radeon_bo_check_tiling(bo, 0, 0);
	163	ttm_bo_kunmap(&bo->kmap);
771fe6b9 JG	164	}
771fe6b9 JG	165
4c788679	166	void radeon_bo_unref(struct radeon_bo **bo)
771fe6b9	167	{
4c788679	168	struct ttm_buffer_object *tbo;
771fe6b9	169
4c788679	170	if ((*bo) == NULL)
771fe6b9	171	return;
4c788679 JG	172	tbo = &((*bo)->tbo);
	173	ttm_bo_unref(&tbo);
	174	if (tbo == NULL)
	175	*bo = NULL;
771fe6b9 JG	176	}
771fe6b9 JG	177
4c788679	178	int radeon_bo_pin(struct radeon_bo bo, u32 domain, u64 gpu_addr)
771fe6b9	179	{
312ea8da	180	int r, i;
771fe6b9	181
4c788679 JG	182	if (bo->pin_count) {
	183	bo->pin_count++;
	184	if (gpu_addr)
	185	*gpu_addr = radeon_bo_gpu_offset(bo);
771fe6b9 JG	186	return 0;
771fe6b9 JG	187	}
312ea8da	188	radeon_ttm_placement_from_domain(bo, domain);
51e5fcd3 JG	189	/* force to pin into visible video ram */
51e5fcd3 JG	190	bo->placement.lpfn = bo->rdev->mc.visible_vram_size >> PAGE_SHIFT;
312ea8da JG	191	for (i = 0; i < bo->placement.num_placement; i++)
312ea8da JG	192	bo->placements[i] \|= TTM_PL_FLAG_NO_EVICT;
1fb107fc	193	r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
4c788679 JG	194	if (likely(r == 0)) {
	195	bo->pin_count = 1;
	196	if (gpu_addr != NULL)
	197	*gpu_addr = radeon_bo_gpu_offset(bo);
771fe6b9	198	}
5cc6fbab	199	if (unlikely(r != 0))
4c788679	200	dev_err(bo->rdev->dev, "%p pin failed\n", bo);
771fe6b9 JG	201	return r;
	202	}
	203
4c788679	204	int radeon_bo_unpin(struct radeon_bo *bo)
771fe6b9	205	{
312ea8da	206	int r, i;
771fe6b9	207
4c788679 JG	208	if (!bo->pin_count) {
	209	dev_warn(bo->rdev->dev, "%p unpin not necessary\n", bo);
	210	return 0;
771fe6b9	211	}
4c788679 JG	212	bo->pin_count--;
	213	if (bo->pin_count)
	214	return 0;
312ea8da JG	215	for (i = 0; i < bo->placement.num_placement; i++)
312ea8da JG	216	bo->placements[i] &= ~TTM_PL_FLAG_NO_EVICT;
1fb107fc	217	r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
5cc6fbab	218	if (unlikely(r != 0))
4c788679	219	dev_err(bo->rdev->dev, "%p validate failed for unpin\n", bo);
5cc6fbab	220	return r;
cefb87ef DA	221	}
cefb87ef DA	222
4c788679	223	int radeon_bo_evict_vram(struct radeon_device *rdev)
771fe6b9	224	{
d796d844 DA	225	/* late 2.6.33 fix IGP hibernate - we need pm ops to do this correct */
d796d844 DA	226	if (0 && (rdev->flags & RADEON_IS_IGP)) {
06b6476d AD	227	if (rdev->mc.igp_sideport_enabled == false)
	228	/* Useless to evict on IGP chips */
	229	return 0;
771fe6b9 JG	230	}
	231	return ttm_bo_evict_mm(&rdev->mman.bdev, TTM_PL_VRAM);
	232	}
	233
4c788679	234	void radeon_bo_force_delete(struct radeon_device *rdev)
771fe6b9	235	{
4c788679	236	struct radeon_bo bo, n;
771fe6b9 JG	237	struct drm_gem_object *gobj;
	238
	239	if (list_empty(&rdev->gem.objects)) {
	240	return;
	241	}
4c788679 JG	242	dev_err(rdev->dev, "Userspace still has active objects !\n");
4c788679 JG	243	list_for_each_entry_safe(bo, n, &rdev->gem.objects, list) {
771fe6b9	244	mutex_lock(&rdev->ddev->struct_mutex);
4c788679 JG	245	gobj = bo->gobj;
	246	dev_err(rdev->dev, "%p %p %lu %lu force free\n",
	247	gobj, bo, (unsigned long)gobj->size,
	248	((unsigned long )&gobj->refcount));
	249	mutex_lock(&bo->rdev->gem.mutex);
	250	list_del_init(&bo->list);
	251	mutex_unlock(&bo->rdev->gem.mutex);
	252	radeon_bo_unref(&bo);
771fe6b9 JG	253	gobj->driver_private = NULL;
	254	drm_gem_object_unreference(gobj);
	255	mutex_unlock(&rdev->ddev->struct_mutex);
	256	}
	257	}
	258
4c788679	259	int radeon_bo_init(struct radeon_device *rdev)
771fe6b9	260	{
a4d68279 JG	261	/* Add an MTRR for the VRAM */
	262	rdev->mc.vram_mtrr = mtrr_add(rdev->mc.aper_base, rdev->mc.aper_size,
	263	MTRR_TYPE_WRCOMB, 1);
	264	DRM_INFO("Detected VRAM RAM=%lluM, BAR=%lluM\n",
	265	rdev->mc.mc_vram_size >> 20,
	266	(unsigned long long)rdev->mc.aper_size >> 20);
	267	DRM_INFO("RAM width %dbits %cDR\n",
	268	rdev->mc.vram_width, rdev->mc.vram_is_ddr ? 'D' : 'S');
771fe6b9 JG	269	return radeon_ttm_init(rdev);
	270	}
	271
4c788679	272	void radeon_bo_fini(struct radeon_device *rdev)
771fe6b9 JG	273	{
	274	radeon_ttm_fini(rdev);
	275	}
	276
4c788679 JG	277	void radeon_bo_list_add_object(struct radeon_bo_list *lobj,
4c788679 JG	278	struct list_head *head)
771fe6b9 JG	279	{
	280	if (lobj->wdomain) {
	281	list_add(&lobj->list, head);
	282	} else {
	283	list_add_tail(&lobj->list, head);
	284	}
	285	}
	286
4c788679	287	int radeon_bo_list_reserve(struct list_head *head)
771fe6b9	288	{
4c788679	289	struct radeon_bo_list *lobj;
771fe6b9 JG	290	int r;
771fe6b9 JG	291
9d8401fc	292	list_for_each_entry(lobj, head, list){
4c788679 JG	293	r = radeon_bo_reserve(lobj->bo, false);
	294	if (unlikely(r != 0))
	295	return r;
771fe6b9 JG	296	}
	297	return 0;
	298	}
	299
4c788679	300	void radeon_bo_list_unreserve(struct list_head *head)
771fe6b9	301	{
4c788679	302	struct radeon_bo_list *lobj;
771fe6b9	303
9d8401fc	304	list_for_each_entry(lobj, head, list) {
4c788679 JG	305	/* only unreserve object we successfully reserved */
	306	if (radeon_bo_is_reserved(lobj->bo))
	307	radeon_bo_unreserve(lobj->bo);
771fe6b9 JG	308	}
	309	}
	310
6cb8e1f7	311	int radeon_bo_list_validate(struct list_head *head)
771fe6b9	312	{
4c788679 JG	313	struct radeon_bo_list *lobj;
4c788679 JG	314	struct radeon_bo *bo;
771fe6b9 JG	315	int r;
771fe6b9 JG	316
4c788679	317	r = radeon_bo_list_reserve(head);
771fe6b9	318	if (unlikely(r != 0)) {
771fe6b9 JG	319	return r;
771fe6b9 JG	320	}
9d8401fc	321	list_for_each_entry(lobj, head, list) {
4c788679 JG	322	bo = lobj->bo;
4c788679 JG	323	if (!bo->pin_count) {
664f8659	324	if (lobj->wdomain) {
312ea8da JG	325	radeon_ttm_placement_from_domain(bo,
312ea8da JG	326	lobj->wdomain);
664f8659	327	} else {
312ea8da JG	328	radeon_ttm_placement_from_domain(bo,
312ea8da JG	329	lobj->rdomain);
664f8659	330	}
1fb107fc	331	r = ttm_bo_validate(&bo->tbo, &bo->placement,
4c788679	332	true, false);
5cc6fbab	333	if (unlikely(r))
771fe6b9	334	return r;
771fe6b9	335	}
4c788679 JG	336	lobj->gpu_offset = radeon_bo_gpu_offset(bo);
4c788679 JG	337	lobj->tiling_flags = bo->tiling_flags;
771fe6b9 JG	338	}
	339	return 0;
	340	}
	341
6cb8e1f7	342	void radeon_bo_list_fence(struct list_head head, void fence)
771fe6b9	343	{
4c788679	344	struct radeon_bo_list *lobj;
6cb8e1f7 JG	345	struct radeon_bo *bo;
	346	struct radeon_fence *old_fence = NULL;
	347
	348	list_for_each_entry(lobj, head, list) {
	349	bo = lobj->bo;
	350	spin_lock(&bo->tbo.lock);
	351	old_fence = (struct radeon_fence *)bo->tbo.sync_obj;
	352	bo->tbo.sync_obj = radeon_fence_ref(fence);
	353	bo->tbo.sync_obj_arg = NULL;
	354	spin_unlock(&bo->tbo.lock);
	355	if (old_fence) {
	356	radeon_fence_unref(&old_fence);
771fe6b9	357	}
6cb8e1f7	358	}
771fe6b9 JG	359	}
771fe6b9 JG	360
4c788679	361	int radeon_bo_fbdev_mmap(struct radeon_bo *bo,
771fe6b9 JG	362	struct vm_area_struct *vma)
771fe6b9 JG	363	{
4c788679	364	return ttm_fbdev_mmap(vma, &bo->tbo);
771fe6b9 JG	365	}
771fe6b9 JG	366
550e2d92	367	int radeon_bo_get_surface_reg(struct radeon_bo *bo)
771fe6b9	368	{
4c788679	369	struct radeon_device *rdev = bo->rdev;
e024e110	370	struct radeon_surface_reg *reg;
4c788679	371	struct radeon_bo *old_object;
e024e110 DA	372	int steal;
	373	int i;
	374
4c788679 JG	375	BUG_ON(!atomic_read(&bo->tbo.reserved));
	376
	377	if (!bo->tiling_flags)
e024e110 DA	378	return 0;
e024e110 DA	379
4c788679 JG	380	if (bo->surface_reg >= 0) {
	381	reg = &rdev->surface_regs[bo->surface_reg];
	382	i = bo->surface_reg;
e024e110 DA	383	goto out;
	384	}
	385
	386	steal = -1;
	387	for (i = 0; i < RADEON_GEM_MAX_SURFACES; i++) {
	388
	389	reg = &rdev->surface_regs[i];
4c788679	390	if (!reg->bo)
e024e110 DA	391	break;
e024e110 DA	392
4c788679	393	old_object = reg->bo;
e024e110 DA	394	if (old_object->pin_count == 0)
	395	steal = i;
	396	}
	397
	398	/* if we are all out */
	399	if (i == RADEON_GEM_MAX_SURFACES) {
	400	if (steal == -1)
	401	return -ENOMEM;
	402	/* find someone with a surface reg and nuke their BO */
	403	reg = &rdev->surface_regs[steal];
4c788679	404	old_object = reg->bo;
e024e110 DA	405	/* blow away the mapping */
e024e110 DA	406	DRM_DEBUG("stealing surface reg %d from %p\n", steal, old_object);
4c788679	407	ttm_bo_unmap_virtual(&old_object->tbo);
e024e110 DA	408	old_object->surface_reg = -1;
	409	i = steal;
	410	}
	411
4c788679 JG	412	bo->surface_reg = i;
4c788679 JG	413	reg->bo = bo;
e024e110 DA	414
e024e110 DA	415	out:
4c788679 JG	416	radeon_set_surface_reg(rdev, i, bo->tiling_flags, bo->pitch,
	417	bo->tbo.mem.mm_node->start << PAGE_SHIFT,
	418	bo->tbo.num_pages << PAGE_SHIFT);
e024e110 DA	419	return 0;
	420	}
	421
4c788679	422	static void radeon_bo_clear_surface_reg(struct radeon_bo *bo)
e024e110	423	{
4c788679	424	struct radeon_device *rdev = bo->rdev;
e024e110 DA	425	struct radeon_surface_reg *reg;
e024e110 DA	426
4c788679	427	if (bo->surface_reg == -1)
e024e110 DA	428	return;
e024e110 DA	429
4c788679 JG	430	reg = &rdev->surface_regs[bo->surface_reg];
4c788679 JG	431	radeon_clear_surface_reg(rdev, bo->surface_reg);
e024e110	432
4c788679 JG	433	reg->bo = NULL;
4c788679 JG	434	bo->surface_reg = -1;
e024e110 DA	435	}
e024e110 DA	436
4c788679 JG	437	int radeon_bo_set_tiling_flags(struct radeon_bo *bo,
4c788679 JG	438	uint32_t tiling_flags, uint32_t pitch)
e024e110	439	{
4c788679 JG	440	int r;
	441
	442	r = radeon_bo_reserve(bo, false);
	443	if (unlikely(r != 0))
	444	return r;
	445	bo->tiling_flags = tiling_flags;
	446	bo->pitch = pitch;
	447	radeon_bo_unreserve(bo);
	448	return 0;
e024e110 DA	449	}
e024e110 DA	450
4c788679 JG	451	void radeon_bo_get_tiling_flags(struct radeon_bo *bo,
	452	uint32_t *tiling_flags,
	453	uint32_t *pitch)
e024e110	454	{
4c788679	455	BUG_ON(!atomic_read(&bo->tbo.reserved));
e024e110	456	if (tiling_flags)
4c788679	457	*tiling_flags = bo->tiling_flags;
e024e110	458	if (pitch)
4c788679	459	*pitch = bo->pitch;
e024e110 DA	460	}
e024e110 DA	461
4c788679 JG	462	int radeon_bo_check_tiling(struct radeon_bo *bo, bool has_moved,
4c788679 JG	463	bool force_drop)
e024e110	464	{
4c788679 JG	465	BUG_ON(!atomic_read(&bo->tbo.reserved));
	466
	467	if (!(bo->tiling_flags & RADEON_TILING_SURFACE))
e024e110 DA	468	return 0;
	469
	470	if (force_drop) {
4c788679	471	radeon_bo_clear_surface_reg(bo);
e024e110 DA	472	return 0;
	473	}
	474
4c788679	475	if (bo->tbo.mem.mem_type != TTM_PL_VRAM) {
e024e110 DA	476	if (!has_moved)
	477	return 0;
	478
4c788679 JG	479	if (bo->surface_reg >= 0)
4c788679 JG	480	radeon_bo_clear_surface_reg(bo);
e024e110 DA	481	return 0;
	482	}
	483
4c788679	484	if ((bo->surface_reg >= 0) && !has_moved)
e024e110 DA	485	return 0;
e024e110 DA	486
4c788679	487	return radeon_bo_get_surface_reg(bo);
e024e110 DA	488	}
	489
	490	void radeon_bo_move_notify(struct ttm_buffer_object *bo,
d03d8589	491	struct ttm_mem_reg *mem)
e024e110	492	{
d03d8589 JG	493	struct radeon_bo *rbo;
	494	if (!radeon_ttm_bo_is_radeon_bo(bo))
	495	return;
	496	rbo = container_of(bo, struct radeon_bo, tbo);
4c788679	497	radeon_bo_check_tiling(rbo, 0, 1);
e024e110 DA	498	}
	499
	500	void radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
	501	{
d03d8589 JG	502	struct radeon_bo *rbo;
	503	if (!radeon_ttm_bo_is_radeon_bo(bo))
	504	return;
	505	rbo = container_of(bo, struct radeon_bo, tbo);
4c788679	506	radeon_bo_check_tiling(rbo, 0, 0);
e024e110	507	}