[deliverable/linux.git] / drivers / gpu / drm / nouveau / nouveau_ttm.c

/*
 * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA,
 * All Rights Reserved.
 * Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA,
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sub license,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 * USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include <subdev/fb.h>
#include <subdev/vm.h>
#include <subdev/instmem.h>

#include "nouveau_drm.h"
#include "nouveau_ttm.h"
#include "nouveau_gem.h"

static int
nouveau_vram_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
{
	struct nouveau_drm *drm = nouveau_bdev(man->bdev);
	struct nouveau_fb *pfb = nouveau_fb(drm->device);
	man->priv = pfb;
	return 0;
}

static int
nouveau_vram_manager_fini(struct ttm_mem_type_manager *man)
{
	man->priv = NULL;
	return 0;
}

static inline void
nouveau_mem_node_cleanup(struct nouveau_mem *node)
{
	if (node->vma[0].node) {
		nouveau_vm_unmap(&node->vma[0]);
		nouveau_vm_put(&node->vma[0]);
	}

	if (node->vma[1].node) {
		nouveau_vm_unmap(&node->vma[1]);
		nouveau_vm_put(&node->vma[1]);
	}
}

static void
nouveau_vram_manager_del(struct ttm_mem_type_manager *man,
			 struct ttm_mem_reg *mem)
{
	struct nouveau_drm *drm = nouveau_bdev(man->bdev);
	struct nouveau_fb *pfb = nouveau_fb(drm->device);
	nouveau_mem_node_cleanup(mem->mm_node);
	pfb->ram.put(pfb, (struct nouveau_mem **)&mem->mm_node);
}

static int
nouveau_vram_manager_new(struct ttm_mem_type_manager *man,
			 struct ttm_buffer_object *bo,
			 struct ttm_placement *placement,
			 struct ttm_mem_reg *mem)
{
	struct nouveau_drm *drm = nouveau_bdev(man->bdev);
	struct nouveau_fb *pfb = nouveau_fb(drm->device);
	struct nouveau_bo *nvbo = nouveau_bo(bo);
	struct nouveau_mem *node;
	u32 size_nc = 0;
	int ret;

	if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG)
		size_nc = 1 << nvbo->page_shift;

	ret = pfb->ram.get(pfb, mem->num_pages << PAGE_SHIFT,
			   mem->page_alignment << PAGE_SHIFT, size_nc,
			   (nvbo->tile_flags >> 8) & 0x3ff, &node);
	if (ret) {
		mem->mm_node = NULL;
		return (ret == -ENOSPC) ? 0 : ret;
	}

	node->page_shift = nvbo->page_shift;

	mem->mm_node = node;
	mem->start   = node->offset >> PAGE_SHIFT;
	return 0;
}

static void
nouveau_vram_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
{
	struct nouveau_fb *pfb = man->priv;
	struct nouveau_mm *mm = &pfb->vram;
	struct nouveau_mm_node *r;
	u32 total = 0, free = 0;

	mutex_lock(&mm->mutex);
	list_for_each_entry(r, &mm->nodes, nl_entry) {
		printk(KERN_DEBUG "%s %d: 0x%010llx 0x%010llx\n",
		       prefix, r->type, ((u64)r->offset << 12),
		       (((u64)r->offset + r->length) << 12));

		total += r->length;
		if (!r->type)
			free += r->length;
	}
	mutex_unlock(&mm->mutex);

	printk(KERN_DEBUG "%s  total: 0x%010llx free: 0x%010llx\n",
	       prefix, (u64)total << 12, (u64)free << 12);
	printk(KERN_DEBUG "%s  block: 0x%08x\n",
	       prefix, mm->block_size << 12);
}

const struct ttm_mem_type_manager_func nouveau_vram_manager = {
	nouveau_vram_manager_init,
	nouveau_vram_manager_fini,
	nouveau_vram_manager_new,
	nouveau_vram_manager_del,
	nouveau_vram_manager_debug
};

static int
nouveau_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
{
	return 0;
}

static int
nouveau_gart_manager_fini(struct ttm_mem_type_manager *man)
{
	return 0;
}

static void
nouveau_gart_manager_del(struct ttm_mem_type_manager *man,
			 struct ttm_mem_reg *mem)
{
	nouveau_mem_node_cleanup(mem->mm_node);
	kfree(mem->mm_node);
	mem->mm_node = NULL;
}

static int
nouveau_gart_manager_new(struct ttm_mem_type_manager *man,
			 struct ttm_buffer_object *bo,
			 struct ttm_placement *placement,
			 struct ttm_mem_reg *mem)
{
	struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
	struct nouveau_bo *nvbo = nouveau_bo(bo);
	struct nouveau_mem *node;

	if (unlikely((mem->num_pages << PAGE_SHIFT) >= 512 * 1024 * 1024))
		return -ENOMEM;

	node = kzalloc(sizeof(*node), GFP_KERNEL);
	if (!node)
		return -ENOMEM;
	node->page_shift = 12;

	switch (nv_device(drm->device)->card_type) {
	case NV_50:
		if (nv_device(drm->device)->chipset != 0x50)
			node->memtype = (nvbo->tile_flags & 0x7f00) >> 8;
		break;
	case NV_C0:
	case NV_D0:
	case NV_E0:
		node->memtype = (nvbo->tile_flags & 0xff00) >> 8;
		break;
	default:
		break;
	}

	mem->mm_node = node;
	mem->start   = 0;
	return 0;
}

static void
nouveau_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
{
}

const struct ttm_mem_type_manager_func nouveau_gart_manager = {
	nouveau_gart_manager_init,
	nouveau_gart_manager_fini,
	nouveau_gart_manager_new,
	nouveau_gart_manager_del,
	nouveau_gart_manager_debug
};

#include <core/subdev/vm/nv04.h>
static int
nv04_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
{
	struct nouveau_drm *drm = nouveau_bdev(man->bdev);
	struct nouveau_vmmgr *vmm = nouveau_vmmgr(drm->device);
	struct nv04_vmmgr_priv *priv = (void *)vmm;
	struct nouveau_vm *vm = NULL;
	nouveau_vm_ref(priv->vm, &vm, NULL);
	man->priv = vm;
	return 0;
}

static int
nv04_gart_manager_fini(struct ttm_mem_type_manager *man)
{
	struct nouveau_vm *vm = man->priv;
	nouveau_vm_ref(NULL, &vm, NULL);
	man->priv = NULL;
	return 0;
}

static void
nv04_gart_manager_del(struct ttm_mem_type_manager *man, struct ttm_mem_reg *mem)
{
	struct nouveau_mem *node = mem->mm_node;
	if (node->vma[0].node)
		nouveau_vm_put(&node->vma[0]);
	kfree(mem->mm_node);
	mem->mm_node = NULL;
}

static int
nv04_gart_manager_new(struct ttm_mem_type_manager *man,
		      struct ttm_buffer_object *bo,
		      struct ttm_placement *placement,
		      struct ttm_mem_reg *mem)
{
	struct nouveau_mem *node;
	int ret;

	node = kzalloc(sizeof(*node), GFP_KERNEL);
	if (!node)
		return -ENOMEM;

	node->page_shift = 12;

	ret = nouveau_vm_get(man->priv, mem->num_pages << 12, node->page_shift,
			     NV_MEM_ACCESS_RW, &node->vma[0]);
	if (ret) {
		kfree(node);
		return ret;
	}

	mem->mm_node = node;
	mem->start   = node->vma[0].offset >> PAGE_SHIFT;
	return 0;
}

static void
nv04_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
{
}

const struct ttm_mem_type_manager_func nv04_gart_manager = {
	nv04_gart_manager_init,
	nv04_gart_manager_fini,
	nv04_gart_manager_new,
	nv04_gart_manager_del,
	nv04_gart_manager_debug
};

int
nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma)
{
	struct drm_file *file_priv = filp->private_data;
	struct nouveau_drm *drm = nouveau_drm(file_priv->minor->dev);

	if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
		return drm_mmap(filp, vma);

	return ttm_bo_mmap(filp, vma, &drm->ttm.bdev);
}

static int
nouveau_ttm_mem_global_init(struct drm_global_reference *ref)
{
	return ttm_mem_global_init(ref->object);
}

static void
nouveau_ttm_mem_global_release(struct drm_global_reference *ref)
{
	ttm_mem_global_release(ref->object);
}

int
nouveau_ttm_global_init(struct nouveau_drm *drm)
{
	struct drm_global_reference *global_ref;
	int ret;

	global_ref = &drm->ttm.mem_global_ref;
	global_ref->global_type = DRM_GLOBAL_TTM_MEM;
	global_ref->size = sizeof(struct ttm_mem_global);
	global_ref->init = &nouveau_ttm_mem_global_init;
	global_ref->release = &nouveau_ttm_mem_global_release;

	ret = drm_global_item_ref(global_ref);
	if (unlikely(ret != 0)) {
		DRM_ERROR("Failed setting up TTM memory accounting\n");
		drm->ttm.mem_global_ref.release = NULL;
		return ret;
	}

	drm->ttm.bo_global_ref.mem_glob = global_ref->object;
	global_ref = &drm->ttm.bo_global_ref.ref;
	global_ref->global_type = DRM_GLOBAL_TTM_BO;
	global_ref->size = sizeof(struct ttm_bo_global);
	global_ref->init = &ttm_bo_global_init;
	global_ref->release = &ttm_bo_global_release;

	ret = drm_global_item_ref(global_ref);
	if (unlikely(ret != 0)) {
		DRM_ERROR("Failed setting up TTM BO subsystem\n");
		drm_global_item_unref(&drm->ttm.mem_global_ref);
		drm->ttm.mem_global_ref.release = NULL;
		return ret;
	}

	return 0;
}

void
nouveau_ttm_global_release(struct nouveau_drm *drm)
{
	if (drm->ttm.mem_global_ref.release == NULL)
		return;

	drm_global_item_unref(&drm->ttm.bo_global_ref.ref);
	drm_global_item_unref(&drm->ttm.mem_global_ref);
	drm->ttm.mem_global_ref.release = NULL;
}

int
nouveau_ttm_init(struct nouveau_drm *drm)
{
	struct drm_device *dev = drm->dev;
	u32 bits;
	int ret;

	bits = nouveau_vmmgr(drm->device)->dma_bits;
	if ( drm->agp.stat == ENABLED ||
	    !pci_dma_supported(dev->pdev, DMA_BIT_MASK(bits)))
		bits = 32;

	ret = pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(bits));
	if (ret)
		return ret;

	ret = pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(bits));
	if (ret)
		pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(32));

	ret = nouveau_ttm_global_init(drm);
	if (ret)
		return ret;

	ret = ttm_bo_device_init(&drm->ttm.bdev,
				  drm->ttm.bo_global_ref.ref.object,
				  &nouveau_bo_driver, DRM_FILE_PAGE_OFFSET,
				  bits <= 32 ? true : false);
	if (ret) {
		NV_ERROR(drm, "error initialising bo driver, %d\n", ret);
		return ret;
	}

	/* VRAM init */
	drm->gem.vram_available  = nouveau_fb(drm->device)->ram.size;
	drm->gem.vram_available -= nouveau_instmem(drm->device)->reserved;

	ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_VRAM,
			      drm->gem.vram_available >> PAGE_SHIFT);
	if (ret) {
		NV_ERROR(drm, "VRAM mm init failed, %d\n", ret);
		return ret;
	}

	drm->ttm.mtrr = drm_mtrr_add(pci_resource_start(dev->pdev, 1),
				     pci_resource_len(dev->pdev, 1),
				     DRM_MTRR_WC);

	/* GART init */
	if (drm->agp.stat != ENABLED) {
		drm->gem.gart_available = nouveau_vmmgr(drm->device)->limit;
		if (drm->gem.gart_available > 512 * 1024 * 1024)
			drm->gem.gart_available = 512 * 1024 * 1024;
	} else {
		drm->gem.gart_available = drm->agp.size;
	}

	ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_TT,
			      drm->gem.gart_available >> PAGE_SHIFT);
	if (ret) {
		NV_ERROR(drm, "GART mm init failed, %d\n", ret);
		return ret;
	}

	NV_INFO(drm, "VRAM: %d MiB\n", (u32)(drm->gem.vram_available >> 20));
	NV_INFO(drm, "GART: %d MiB\n", (u32)(drm->gem.gart_available >> 20));
	return 0;
}

void
nouveau_ttm_fini(struct nouveau_drm *drm)
{
	mutex_lock(&drm->dev->struct_mutex);
	ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_VRAM);
	ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_TT);
	mutex_unlock(&drm->dev->struct_mutex);

	ttm_bo_device_release(&drm->ttm.bdev);

	nouveau_ttm_global_release(drm);

	if (drm->ttm.mtrr >= 0) {
		drm_mtrr_del(drm->ttm.mtrr,
			     pci_resource_start(drm->dev->pdev, 1),
			     pci_resource_len(drm->dev->pdev, 1), DRM_MTRR_WC);
		drm->ttm.mtrr = -1;
	}
}
Commit	Line	Data
6ee73861 BS	1	/*
	2	* Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA,
	3	* All Rights Reserved.
	4	* Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA,
	5	* All Rights Reserved.
	6	*
	7	* Permission is hereby granted, free of charge, to any person obtaining a
	8	* copy of this software and associated documentation files (the "Software"),
	9	* to deal in the Software without restriction, including without limitation
	10	* the rights to use, copy, modify, merge, publish, distribute, sub license,
	11	* and/or sell copies of the Software, and to permit persons to whom the
	12	* Software is furnished to do so, subject to the following conditions:
	13	*
	14	* The above copyright notice and this permission notice (including the
	15	* next paragraph) shall be included in all copies or substantial portions
	16	* of the Software.
	17	*
	18	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	19	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	20	* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
	21	* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
	22	* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
	23	* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
	24	* USE OR OTHER DEALINGS IN THE SOFTWARE.
	25	*/
	26
ebb945a9 BS	27	#include <subdev/fb.h>
	28	#include <subdev/vm.h>
	29	#include <subdev/instmem.h>
6ee73861	30
ebb945a9 BS	31	#include "nouveau_drm.h"
	32	#include "nouveau_ttm.h"
	33	#include "nouveau_gem.h"
6ee73861	34
bc9e7b9a BS	35	static int
	36	nouveau_vram_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
	37	{
897a6e27 MS	38	struct nouveau_drm *drm = nouveau_bdev(man->bdev);
	39	struct nouveau_fb *pfb = nouveau_fb(drm->device);
	40	man->priv = pfb;
bc9e7b9a BS	41	return 0;
	42	}
	43
	44	static int
	45	nouveau_vram_manager_fini(struct ttm_mem_type_manager *man)
	46	{
897a6e27	47	man->priv = NULL;
bc9e7b9a BS	48	return 0;
	49	}
	50
	51	static inline void
	52	nouveau_mem_node_cleanup(struct nouveau_mem *node)
	53	{
	54	if (node->vma[0].node) {
	55	nouveau_vm_unmap(&node->vma[0]);
	56	nouveau_vm_put(&node->vma[0]);
	57	}
	58
	59	if (node->vma[1].node) {
	60	nouveau_vm_unmap(&node->vma[1]);
	61	nouveau_vm_put(&node->vma[1]);
	62	}
	63	}
	64
	65	static void
	66	nouveau_vram_manager_del(struct ttm_mem_type_manager *man,
	67	struct ttm_mem_reg *mem)
	68	{
ebb945a9 BS	69	struct nouveau_drm *drm = nouveau_bdev(man->bdev);
ebb945a9 BS	70	struct nouveau_fb *pfb = nouveau_fb(drm->device);
bc9e7b9a	71	nouveau_mem_node_cleanup(mem->mm_node);
ebb945a9	72	pfb->ram.put(pfb, (struct nouveau_mem **)&mem->mm_node);
bc9e7b9a BS	73	}
	74
	75	static int
	76	nouveau_vram_manager_new(struct ttm_mem_type_manager *man,
	77	struct ttm_buffer_object *bo,
	78	struct ttm_placement *placement,
	79	struct ttm_mem_reg *mem)
	80	{
ebb945a9 BS	81	struct nouveau_drm *drm = nouveau_bdev(man->bdev);
ebb945a9 BS	82	struct nouveau_fb *pfb = nouveau_fb(drm->device);
bc9e7b9a BS	83	struct nouveau_bo *nvbo = nouveau_bo(bo);
	84	struct nouveau_mem *node;
	85	u32 size_nc = 0;
	86	int ret;
	87
	88	if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG)
	89	size_nc = 1 << nvbo->page_shift;
	90
ebb945a9 BS	91	ret = pfb->ram.get(pfb, mem->num_pages << PAGE_SHIFT,
	92	mem->page_alignment << PAGE_SHIFT, size_nc,
	93	(nvbo->tile_flags >> 8) & 0x3ff, &node);
bc9e7b9a BS	94	if (ret) {
	95	mem->mm_node = NULL;
	96	return (ret == -ENOSPC) ? 0 : ret;
	97	}
	98
	99	node->page_shift = nvbo->page_shift;
	100
	101	mem->mm_node = node;
	102	mem->start = node->offset >> PAGE_SHIFT;
	103	return 0;
	104	}
	105
5b8a43ae	106	static void
bc9e7b9a BS	107	nouveau_vram_manager_debug(struct ttm_mem_type_manager man, const char prefix)
bc9e7b9a BS	108	{
897a6e27 MS	109	struct nouveau_fb *pfb = man->priv;
897a6e27 MS	110	struct nouveau_mm *mm = &pfb->vram;
bc9e7b9a BS	111	struct nouveau_mm_node *r;
	112	u32 total = 0, free = 0;
	113
	114	mutex_lock(&mm->mutex);
	115	list_for_each_entry(r, &mm->nodes, nl_entry) {
	116	printk(KERN_DEBUG "%s %d: 0x%010llx 0x%010llx\n",
	117	prefix, r->type, ((u64)r->offset << 12),
	118	(((u64)r->offset + r->length) << 12));
	119
	120	total += r->length;
	121	if (!r->type)
	122	free += r->length;
	123	}
	124	mutex_unlock(&mm->mutex);
	125
	126	printk(KERN_DEBUG "%s total: 0x%010llx free: 0x%010llx\n",
	127	prefix, (u64)total << 12, (u64)free << 12);
	128	printk(KERN_DEBUG "%s block: 0x%08x\n",
	129	prefix, mm->block_size << 12);
	130	}
	131
	132	const struct ttm_mem_type_manager_func nouveau_vram_manager = {
	133	nouveau_vram_manager_init,
	134	nouveau_vram_manager_fini,
	135	nouveau_vram_manager_new,
	136	nouveau_vram_manager_del,
	137	nouveau_vram_manager_debug
	138	};
	139
	140	static int
	141	nouveau_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
	142	{
	143	return 0;
	144	}
	145
	146	static int
	147	nouveau_gart_manager_fini(struct ttm_mem_type_manager *man)
	148	{
	149	return 0;
	150	}
	151
	152	static void
	153	nouveau_gart_manager_del(struct ttm_mem_type_manager *man,
	154	struct ttm_mem_reg *mem)
	155	{
	156	nouveau_mem_node_cleanup(mem->mm_node);
	157	kfree(mem->mm_node);
	158	mem->mm_node = NULL;
	159	}
	160
	161	static int
	162	nouveau_gart_manager_new(struct ttm_mem_type_manager *man,
	163	struct ttm_buffer_object *bo,
	164	struct ttm_placement *placement,
	165	struct ttm_mem_reg *mem)
	166	{
de7b7d59 BS	167	struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
de7b7d59 BS	168	struct nouveau_bo *nvbo = nouveau_bo(bo);
bc9e7b9a BS	169	struct nouveau_mem *node;
bc9e7b9a BS	170
ebb945a9	171	if (unlikely((mem->num_pages << PAGE_SHIFT) >= 512 * 1024 * 1024))
bc9e7b9a BS	172	return -ENOMEM;
	173
	174	node = kzalloc(sizeof(*node), GFP_KERNEL);
	175	if (!node)
	176	return -ENOMEM;
	177	node->page_shift = 12;
	178
de7b7d59 BS	179	switch (nv_device(drm->device)->card_type) {
	180	case NV_50:
	181	if (nv_device(drm->device)->chipset != 0x50)
	182	node->memtype = (nvbo->tile_flags & 0x7f00) >> 8;
	183	break;
	184	case NV_C0:
	185	case NV_D0:
	186	case NV_E0:
	187	node->memtype = (nvbo->tile_flags & 0xff00) >> 8;
	188	break;
	189	default:
	190	break;
	191	}
	192
bc9e7b9a BS	193	mem->mm_node = node;
	194	mem->start = 0;
	195	return 0;
	196	}
	197
5b8a43ae	198	static void
bc9e7b9a BS	199	nouveau_gart_manager_debug(struct ttm_mem_type_manager man, const char prefix)
	200	{
	201	}
	202
	203	const struct ttm_mem_type_manager_func nouveau_gart_manager = {
	204	nouveau_gart_manager_init,
	205	nouveau_gart_manager_fini,
	206	nouveau_gart_manager_new,
	207	nouveau_gart_manager_del,
	208	nouveau_gart_manager_debug
	209	};
	210
ebb945a9	211	#include <core/subdev/vm/nv04.h>
bc9e7b9a BS	212	static int
	213	nv04_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
	214	{
ebb945a9 BS	215	struct nouveau_drm *drm = nouveau_bdev(man->bdev);
	216	struct nouveau_vmmgr *vmm = nouveau_vmmgr(drm->device);
	217	struct nv04_vmmgr_priv priv = (void )vmm;
	218	struct nouveau_vm *vm = NULL;
	219	nouveau_vm_ref(priv->vm, &vm, NULL);
	220	man->priv = vm;
	221	return 0;
bc9e7b9a BS	222	}
	223
	224	static int
	225	nv04_gart_manager_fini(struct ttm_mem_type_manager *man)
	226	{
	227	struct nouveau_vm *vm = man->priv;
	228	nouveau_vm_ref(NULL, &vm, NULL);
	229	man->priv = NULL;
	230	return 0;
	231	}
	232
	233	static void
	234	nv04_gart_manager_del(struct ttm_mem_type_manager man, struct ttm_mem_reg mem)
	235	{
	236	struct nouveau_mem *node = mem->mm_node;
	237	if (node->vma[0].node)
	238	nouveau_vm_put(&node->vma[0]);
	239	kfree(mem->mm_node);
	240	mem->mm_node = NULL;
	241	}
	242
	243	static int
	244	nv04_gart_manager_new(struct ttm_mem_type_manager *man,
	245	struct ttm_buffer_object *bo,
	246	struct ttm_placement *placement,
	247	struct ttm_mem_reg *mem)
	248	{
	249	struct nouveau_mem *node;
	250	int ret;
	251
	252	node = kzalloc(sizeof(*node), GFP_KERNEL);
	253	if (!node)
	254	return -ENOMEM;
	255
	256	node->page_shift = 12;
	257
	258	ret = nouveau_vm_get(man->priv, mem->num_pages << 12, node->page_shift,
	259	NV_MEM_ACCESS_RW, &node->vma[0]);
	260	if (ret) {
	261	kfree(node);
	262	return ret;
	263	}
	264
	265	mem->mm_node = node;
	266	mem->start = node->vma[0].offset >> PAGE_SHIFT;
	267	return 0;
	268	}
	269
5b8a43ae	270	static void
bc9e7b9a BS	271	nv04_gart_manager_debug(struct ttm_mem_type_manager man, const char prefix)
	272	{
	273	}
	274
	275	const struct ttm_mem_type_manager_func nv04_gart_manager = {
	276	nv04_gart_manager_init,
	277	nv04_gart_manager_fini,
	278	nv04_gart_manager_new,
	279	nv04_gart_manager_del,
	280	nv04_gart_manager_debug
	281	};
	282
6ee73861 BS	283	int
	284	nouveau_ttm_mmap(struct file filp, struct vm_area_struct vma)
	285	{
	286	struct drm_file *file_priv = filp->private_data;
77145f1c	287	struct nouveau_drm *drm = nouveau_drm(file_priv->minor->dev);
6ee73861 BS	288
	289	if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
	290	return drm_mmap(filp, vma);
	291
ebb945a9	292	return ttm_bo_mmap(filp, vma, &drm->ttm.bdev);
6ee73861 BS	293	}
	294
	295	static int
ba4420c2	296	nouveau_ttm_mem_global_init(struct drm_global_reference *ref)
6ee73861 BS	297	{
	298	return ttm_mem_global_init(ref->object);
	299	}
	300
	301	static void
ba4420c2	302	nouveau_ttm_mem_global_release(struct drm_global_reference *ref)
6ee73861 BS	303	{
	304	ttm_mem_global_release(ref->object);
	305	}
	306
	307	int
ebb945a9	308	nouveau_ttm_global_init(struct nouveau_drm *drm)
6ee73861	309	{
ba4420c2	310	struct drm_global_reference *global_ref;
6ee73861 BS	311	int ret;
6ee73861 BS	312
ebb945a9	313	global_ref = &drm->ttm.mem_global_ref;
ba4420c2	314	global_ref->global_type = DRM_GLOBAL_TTM_MEM;
6ee73861 BS	315	global_ref->size = sizeof(struct ttm_mem_global);
	316	global_ref->init = &nouveau_ttm_mem_global_init;
	317	global_ref->release = &nouveau_ttm_mem_global_release;
	318
ba4420c2	319	ret = drm_global_item_ref(global_ref);
6ee73861 BS	320	if (unlikely(ret != 0)) {
6ee73861 BS	321	DRM_ERROR("Failed setting up TTM memory accounting\n");
ebb945a9	322	drm->ttm.mem_global_ref.release = NULL;
6ee73861 BS	323	return ret;
	324	}
	325
ebb945a9 BS	326	drm->ttm.bo_global_ref.mem_glob = global_ref->object;
ebb945a9 BS	327	global_ref = &drm->ttm.bo_global_ref.ref;
ba4420c2	328	global_ref->global_type = DRM_GLOBAL_TTM_BO;
6ee73861 BS	329	global_ref->size = sizeof(struct ttm_bo_global);
	330	global_ref->init = &ttm_bo_global_init;
	331	global_ref->release = &ttm_bo_global_release;
	332
ba4420c2	333	ret = drm_global_item_ref(global_ref);
6ee73861 BS	334	if (unlikely(ret != 0)) {
6ee73861 BS	335	DRM_ERROR("Failed setting up TTM BO subsystem\n");
ebb945a9 BS	336	drm_global_item_unref(&drm->ttm.mem_global_ref);
ebb945a9 BS	337	drm->ttm.mem_global_ref.release = NULL;
6ee73861 BS	338	return ret;
	339	}
	340
	341	return 0;
	342	}
	343
	344	void
ebb945a9	345	nouveau_ttm_global_release(struct nouveau_drm *drm)
6ee73861	346	{
ebb945a9	347	if (drm->ttm.mem_global_ref.release == NULL)
6ee73861 BS	348	return;
6ee73861 BS	349
ebb945a9 BS	350	drm_global_item_unref(&drm->ttm.bo_global_ref.ref);
	351	drm_global_item_unref(&drm->ttm.mem_global_ref);
	352	drm->ttm.mem_global_ref.release = NULL;
	353	}
	354
	355	int
	356	nouveau_ttm_init(struct nouveau_drm *drm)
	357	{
	358	struct drm_device *dev = drm->dev;
	359	u32 bits;
	360	int ret;
	361
dc73b45a BS	362	bits = nouveau_vmmgr(drm->device)->dma_bits;
	363	if ( drm->agp.stat == ENABLED \|\|
	364	!pci_dma_supported(dev->pdev, DMA_BIT_MASK(bits)))
ebb945a9	365	bits = 32;
ebb945a9 BS	366
	367	ret = pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(bits));
	368	if (ret)
	369	return ret;
	370
	371	ret = pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(bits));
	372	if (ret)
	373	pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(32));
	374
	375	ret = nouveau_ttm_global_init(drm);
	376	if (ret)
	377	return ret;
	378
	379	ret = ttm_bo_device_init(&drm->ttm.bdev,
	380	drm->ttm.bo_global_ref.ref.object,
	381	&nouveau_bo_driver, DRM_FILE_PAGE_OFFSET,
	382	bits <= 32 ? true : false);
	383	if (ret) {
	384	NV_ERROR(drm, "error initialising bo driver, %d\n", ret);
	385	return ret;
	386	}
	387
	388	/* VRAM init */
	389	drm->gem.vram_available = nouveau_fb(drm->device)->ram.size;
	390	drm->gem.vram_available -= nouveau_instmem(drm->device)->reserved;
	391
	392	ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_VRAM,
	393	drm->gem.vram_available >> PAGE_SHIFT);
	394	if (ret) {
	395	NV_ERROR(drm, "VRAM mm init failed, %d\n", ret);
	396	return ret;
	397	}
	398
	399	drm->ttm.mtrr = drm_mtrr_add(pci_resource_start(dev->pdev, 1),
	400	pci_resource_len(dev->pdev, 1),
	401	DRM_MTRR_WC);
	402
	403	/* GART init */
	404	if (drm->agp.stat != ENABLED) {
	405	drm->gem.gart_available = nouveau_vmmgr(drm->device)->limit;
	406	if (drm->gem.gart_available > 512 * 1024 * 1024)
	407	drm->gem.gart_available = 512 * 1024 * 1024;
	408	} else {
	409	drm->gem.gart_available = drm->agp.size;
	410	}
	411
	412	ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_TT,
	413	drm->gem.gart_available >> PAGE_SHIFT);
	414	if (ret) {
	415	NV_ERROR(drm, "GART mm init failed, %d\n", ret);
	416	return ret;
	417	}
	418
	419	NV_INFO(drm, "VRAM: %d MiB\n", (u32)(drm->gem.vram_available >> 20));
	420	NV_INFO(drm, "GART: %d MiB\n", (u32)(drm->gem.gart_available >> 20));
	421	return 0;
	422	}
	423
	424	void
	425	nouveau_ttm_fini(struct nouveau_drm *drm)
	426	{
	427	mutex_lock(&drm->dev->struct_mutex);
	428	ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_VRAM);
	429	ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_TT);
430	mutex_unlock(&drm->dev->struct_mutex);
431
432	ttm_bo_device_release(&drm->ttm.bdev);
433
434	nouveau_ttm_global_release(drm);
435
436	if (drm->ttm.mtrr >= 0) {
437	drm_mtrr_del(drm->ttm.mtrr,
438	pci_resource_start(drm->dev->pdev, 1),
439	pci_resource_len(drm->dev->pdev, 1), DRM_MTRR_WC);
440	drm->ttm.mtrr = -1;
441	}
6ee73861	442	}