[mirror_ubuntu-focal-kernel.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 "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 = nvkm_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 = nvkm_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,
			 uint32_t flags,
			 struct ttm_mem_reg *mem)
{
	struct nouveau_drm *drm = nouveau_bdev(man->bdev);
	struct nouveau_fb *pfb = nvkm_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(&nv_subdev(pfb)->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(&nv_subdev(pfb)->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,
			 uint32_t flags,
			 struct ttm_mem_reg *mem)
{
	struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
	struct nouveau_bo *nvbo = nouveau_bo(bo);
	struct nouveau_mem *node;

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

	node->page_shift = 12;

	switch (drm->device.info.family) {
	case NV_DEVICE_INFO_V0_TESLA:
		if (drm->device.info.chipset != 0x50)
			node->memtype = (nvbo->tile_flags & 0x7f00) >> 8;
		break;
	case NV_DEVICE_INFO_V0_FERMI:
	case NV_DEVICE_INFO_V0_KEPLER:
		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
};

/*XXX*/
#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 = nvkm_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,
		      uint32_t flags,
		      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 = nvkm_vmmgr(&drm->device)->dma_bits;
	if (nv_device_is_pci(nvkm_device(&drm->device))) {
		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,
				  dev->anon_inode->i_mapping,
				  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  = nvkm_fb(&drm->device)->ram->size;
	drm->gem.vram_available -= nvkm_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 = arch_phys_wc_add(nv_device_resource_start(nvkm_device(&drm->device), 1),
					 nv_device_resource_len(nvkm_device(&drm->device), 1));

	/* GART init */
	if (drm->agp.stat != ENABLED) {
		drm->gem.gart_available = nvkm_vmmgr(&drm->device)->limit;
	} 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);

	arch_phys_wc_del(drm->ttm.mtrr);
	drm->ttm.mtrr = 0;
}
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 "nouveau_drm.h"
	28	#include "nouveau_ttm.h"
	29	#include "nouveau_gem.h"
6ee73861	30
bc9e7b9a BS	31	static int
	32	nouveau_vram_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
	33	{
897a6e27	34	struct nouveau_drm *drm = nouveau_bdev(man->bdev);
967e7bde	35	struct nouveau_fb *pfb = nvkm_fb(&drm->device);
897a6e27	36	man->priv = pfb;
bc9e7b9a BS	37	return 0;
	38	}
	39
	40	static int
	41	nouveau_vram_manager_fini(struct ttm_mem_type_manager *man)
	42	{
897a6e27	43	man->priv = NULL;
bc9e7b9a BS	44	return 0;
	45	}
	46
	47	static inline void
	48	nouveau_mem_node_cleanup(struct nouveau_mem *node)
	49	{
	50	if (node->vma[0].node) {
	51	nouveau_vm_unmap(&node->vma[0]);
	52	nouveau_vm_put(&node->vma[0]);
	53	}
	54
	55	if (node->vma[1].node) {
	56	nouveau_vm_unmap(&node->vma[1]);
	57	nouveau_vm_put(&node->vma[1]);
	58	}
	59	}
	60
	61	static void
	62	nouveau_vram_manager_del(struct ttm_mem_type_manager *man,
	63	struct ttm_mem_reg *mem)
	64	{
ebb945a9	65	struct nouveau_drm *drm = nouveau_bdev(man->bdev);
967e7bde	66	struct nouveau_fb *pfb = nvkm_fb(&drm->device);
bc9e7b9a	67	nouveau_mem_node_cleanup(mem->mm_node);
dceef5d8	68	pfb->ram->put(pfb, (struct nouveau_mem **)&mem->mm_node);
bc9e7b9a BS	69	}
	70
	71	static int
	72	nouveau_vram_manager_new(struct ttm_mem_type_manager *man,
	73	struct ttm_buffer_object *bo,
	74	struct ttm_placement *placement,
e3f20279	75	uint32_t flags,
bc9e7b9a BS	76	struct ttm_mem_reg *mem)
bc9e7b9a BS	77	{
ebb945a9	78	struct nouveau_drm *drm = nouveau_bdev(man->bdev);
967e7bde	79	struct nouveau_fb *pfb = nvkm_fb(&drm->device);
bc9e7b9a BS	80	struct nouveau_bo *nvbo = nouveau_bo(bo);
	81	struct nouveau_mem *node;
	82	u32 size_nc = 0;
	83	int ret;
	84
	85	if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG)
	86	size_nc = 1 << nvbo->page_shift;
	87
dceef5d8	88	ret = pfb->ram->get(pfb, mem->num_pages << PAGE_SHIFT,
ebb945a9 BS	89	mem->page_alignment << PAGE_SHIFT, size_nc,
ebb945a9 BS	90	(nvbo->tile_flags >> 8) & 0x3ff, &node);
bc9e7b9a BS	91	if (ret) {
	92	mem->mm_node = NULL;
	93	return (ret == -ENOSPC) ? 0 : ret;
	94	}
	95
	96	node->page_shift = nvbo->page_shift;
	97
	98	mem->mm_node = node;
	99	mem->start = node->offset >> PAGE_SHIFT;
	100	return 0;
	101	}
	102
5b8a43ae	103	static void
bc9e7b9a BS	104	nouveau_vram_manager_debug(struct ttm_mem_type_manager man, const char prefix)
bc9e7b9a BS	105	{
897a6e27 MS	106	struct nouveau_fb *pfb = man->priv;
897a6e27 MS	107	struct nouveau_mm *mm = &pfb->vram;
bc9e7b9a BS	108	struct nouveau_mm_node *r;
	109	u32 total = 0, free = 0;
	110
51a506c0	111	mutex_lock(&nv_subdev(pfb)->mutex);
bc9e7b9a BS	112	list_for_each_entry(r, &mm->nodes, nl_entry) {
	113	printk(KERN_DEBUG "%s %d: 0x%010llx 0x%010llx\n",
	114	prefix, r->type, ((u64)r->offset << 12),
	115	(((u64)r->offset + r->length) << 12));
	116
	117	total += r->length;
	118	if (!r->type)
	119	free += r->length;
	120	}
51a506c0	121	mutex_unlock(&nv_subdev(pfb)->mutex);
bc9e7b9a BS	122
	123	printk(KERN_DEBUG "%s total: 0x%010llx free: 0x%010llx\n",
	124	prefix, (u64)total << 12, (u64)free << 12);
	125	printk(KERN_DEBUG "%s block: 0x%08x\n",
	126	prefix, mm->block_size << 12);
	127	}
	128
	129	const struct ttm_mem_type_manager_func nouveau_vram_manager = {
	130	nouveau_vram_manager_init,
	131	nouveau_vram_manager_fini,
	132	nouveau_vram_manager_new,
	133	nouveau_vram_manager_del,
	134	nouveau_vram_manager_debug
	135	};
	136
	137	static int
	138	nouveau_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
	139	{
	140	return 0;
	141	}
	142
	143	static int
	144	nouveau_gart_manager_fini(struct ttm_mem_type_manager *man)
	145	{
	146	return 0;
	147	}
	148
	149	static void
	150	nouveau_gart_manager_del(struct ttm_mem_type_manager *man,
	151	struct ttm_mem_reg *mem)
	152	{
	153	nouveau_mem_node_cleanup(mem->mm_node);
	154	kfree(mem->mm_node);
	155	mem->mm_node = NULL;
	156	}
	157
	158	static int
	159	nouveau_gart_manager_new(struct ttm_mem_type_manager *man,
	160	struct ttm_buffer_object *bo,
	161	struct ttm_placement *placement,
e3f20279	162	uint32_t flags,
bc9e7b9a BS	163	struct ttm_mem_reg *mem)
bc9e7b9a BS	164	{
de7b7d59 BS	165	struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
de7b7d59 BS	166	struct nouveau_bo *nvbo = nouveau_bo(bo);
bc9e7b9a BS	167	struct nouveau_mem *node;
bc9e7b9a BS	168
bc9e7b9a BS	169	node = kzalloc(sizeof(*node), GFP_KERNEL);
	170	if (!node)
	171	return -ENOMEM;
2e2cfbe6	172
bc9e7b9a BS	173	node->page_shift = 12;
bc9e7b9a BS	174
967e7bde BS	175	switch (drm->device.info.family) {
	176	case NV_DEVICE_INFO_V0_TESLA:
	177	if (drm->device.info.chipset != 0x50)
de7b7d59 BS	178	node->memtype = (nvbo->tile_flags & 0x7f00) >> 8;
de7b7d59 BS	179	break;
967e7bde BS	180	case NV_DEVICE_INFO_V0_FERMI:
967e7bde BS	181	case NV_DEVICE_INFO_V0_KEPLER:
de7b7d59 BS	182	node->memtype = (nvbo->tile_flags & 0xff00) >> 8;
	183	break;
	184	default:
	185	break;
	186	}
	187
bc9e7b9a BS	188	mem->mm_node = node;
	189	mem->start = 0;
	190	return 0;
	191	}
	192
5b8a43ae	193	static void
bc9e7b9a BS	194	nouveau_gart_manager_debug(struct ttm_mem_type_manager man, const char prefix)
	195	{
	196	}
	197
	198	const struct ttm_mem_type_manager_func nouveau_gart_manager = {
	199	nouveau_gart_manager_init,
	200	nouveau_gart_manager_fini,
	201	nouveau_gart_manager_new,
	202	nouveau_gart_manager_del,
	203	nouveau_gart_manager_debug
	204	};
	205
fdb751ef	206	/XXX/
ebb945a9	207	#include <core/subdev/vm/nv04.h>
bc9e7b9a BS	208	static int
	209	nv04_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
	210	{
ebb945a9	211	struct nouveau_drm *drm = nouveau_bdev(man->bdev);
967e7bde	212	struct nouveau_vmmgr *vmm = nvkm_vmmgr(&drm->device);
ebb945a9 BS	213	struct nv04_vmmgr_priv priv = (void )vmm;
	214	struct nouveau_vm *vm = NULL;
	215	nouveau_vm_ref(priv->vm, &vm, NULL);
	216	man->priv = vm;
	217	return 0;
bc9e7b9a BS	218	}
	219
	220	static int
	221	nv04_gart_manager_fini(struct ttm_mem_type_manager *man)
	222	{
	223	struct nouveau_vm *vm = man->priv;
	224	nouveau_vm_ref(NULL, &vm, NULL);
	225	man->priv = NULL;
	226	return 0;
	227	}
	228
	229	static void
	230	nv04_gart_manager_del(struct ttm_mem_type_manager man, struct ttm_mem_reg mem)
	231	{
	232	struct nouveau_mem *node = mem->mm_node;
	233	if (node->vma[0].node)
	234	nouveau_vm_put(&node->vma[0]);
	235	kfree(mem->mm_node);
	236	mem->mm_node = NULL;
	237	}
	238
	239	static int
	240	nv04_gart_manager_new(struct ttm_mem_type_manager *man,
	241	struct ttm_buffer_object *bo,
	242	struct ttm_placement *placement,
e3f20279	243	uint32_t flags,
bc9e7b9a BS	244	struct ttm_mem_reg *mem)
	245	{
	246	struct nouveau_mem *node;
	247	int ret;
	248
	249	node = kzalloc(sizeof(*node), GFP_KERNEL);
	250	if (!node)
	251	return -ENOMEM;
	252
	253	node->page_shift = 12;
	254
	255	ret = nouveau_vm_get(man->priv, mem->num_pages << 12, node->page_shift,
	256	NV_MEM_ACCESS_RW, &node->vma[0]);
	257	if (ret) {
	258	kfree(node);
	259	return ret;
	260	}
	261
	262	mem->mm_node = node;
	263	mem->start = node->vma[0].offset >> PAGE_SHIFT;
	264	return 0;
	265	}
	266
5b8a43ae	267	static void
bc9e7b9a BS	268	nv04_gart_manager_debug(struct ttm_mem_type_manager man, const char prefix)
	269	{
	270	}
	271
	272	const struct ttm_mem_type_manager_func nv04_gart_manager = {
	273	nv04_gart_manager_init,
	274	nv04_gart_manager_fini,
	275	nv04_gart_manager_new,
	276	nv04_gart_manager_del,
	277	nv04_gart_manager_debug
	278	};
	279
6ee73861 BS	280	int
	281	nouveau_ttm_mmap(struct file filp, struct vm_area_struct vma)
	282	{
	283	struct drm_file *file_priv = filp->private_data;
77145f1c	284	struct nouveau_drm *drm = nouveau_drm(file_priv->minor->dev);
6ee73861 BS	285
	286	if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
	287	return drm_mmap(filp, vma);
	288
ebb945a9	289	return ttm_bo_mmap(filp, vma, &drm->ttm.bdev);
6ee73861 BS	290	}
	291
	292	static int
ba4420c2	293	nouveau_ttm_mem_global_init(struct drm_global_reference *ref)
6ee73861 BS	294	{
	295	return ttm_mem_global_init(ref->object);
	296	}
	297
	298	static void
ba4420c2	299	nouveau_ttm_mem_global_release(struct drm_global_reference *ref)
6ee73861 BS	300	{
	301	ttm_mem_global_release(ref->object);
	302	}
	303
	304	int
ebb945a9	305	nouveau_ttm_global_init(struct nouveau_drm *drm)
6ee73861	306	{
ba4420c2	307	struct drm_global_reference *global_ref;
6ee73861 BS	308	int ret;
6ee73861 BS	309
ebb945a9	310	global_ref = &drm->ttm.mem_global_ref;
ba4420c2	311	global_ref->global_type = DRM_GLOBAL_TTM_MEM;
6ee73861 BS	312	global_ref->size = sizeof(struct ttm_mem_global);
	313	global_ref->init = &nouveau_ttm_mem_global_init;
	314	global_ref->release = &nouveau_ttm_mem_global_release;
	315
ba4420c2	316	ret = drm_global_item_ref(global_ref);
6ee73861 BS	317	if (unlikely(ret != 0)) {
6ee73861 BS	318	DRM_ERROR("Failed setting up TTM memory accounting\n");
ebb945a9	319	drm->ttm.mem_global_ref.release = NULL;
6ee73861 BS	320	return ret;
	321	}
	322
ebb945a9 BS	323	drm->ttm.bo_global_ref.mem_glob = global_ref->object;
ebb945a9 BS	324	global_ref = &drm->ttm.bo_global_ref.ref;
ba4420c2	325	global_ref->global_type = DRM_GLOBAL_TTM_BO;
6ee73861 BS	326	global_ref->size = sizeof(struct ttm_bo_global);
	327	global_ref->init = &ttm_bo_global_init;
	328	global_ref->release = &ttm_bo_global_release;
	329
ba4420c2	330	ret = drm_global_item_ref(global_ref);
6ee73861 BS	331	if (unlikely(ret != 0)) {
6ee73861 BS	332	DRM_ERROR("Failed setting up TTM BO subsystem\n");
ebb945a9 BS	333	drm_global_item_unref(&drm->ttm.mem_global_ref);
ebb945a9 BS	334	drm->ttm.mem_global_ref.release = NULL;
6ee73861 BS	335	return ret;
	336	}
	337
	338	return 0;
	339	}
	340
	341	void
ebb945a9	342	nouveau_ttm_global_release(struct nouveau_drm *drm)
6ee73861	343	{
ebb945a9	344	if (drm->ttm.mem_global_ref.release == NULL)
6ee73861 BS	345	return;
6ee73861 BS	346
ebb945a9 BS	347	drm_global_item_unref(&drm->ttm.bo_global_ref.ref);
	348	drm_global_item_unref(&drm->ttm.mem_global_ref);
	349	drm->ttm.mem_global_ref.release = NULL;
	350	}
	351
	352	int
	353	nouveau_ttm_init(struct nouveau_drm *drm)
	354	{
	355	struct drm_device *dev = drm->dev;
	356	u32 bits;
	357	int ret;
	358
967e7bde BS	359	bits = nvkm_vmmgr(&drm->device)->dma_bits;
967e7bde BS	360	if (nv_device_is_pci(nvkm_device(&drm->device))) {
420b9469 AC	361	if (drm->agp.stat == ENABLED \|\|
	362	!pci_dma_supported(dev->pdev, DMA_BIT_MASK(bits)))
	363	bits = 32;
	364
	365	ret = pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(bits));
	366	if (ret)
	367	return ret;
	368
	369	ret = pci_set_consistent_dma_mask(dev->pdev,
	370	DMA_BIT_MASK(bits));
	371	if (ret)
	372	pci_set_consistent_dma_mask(dev->pdev,
	373	DMA_BIT_MASK(32));
	374	}
ebb945a9 BS	375
	376	ret = nouveau_ttm_global_init(drm);
	377	if (ret)
	378	return ret;
	379
	380	ret = ttm_bo_device_init(&drm->ttm.bdev,
	381	drm->ttm.bo_global_ref.ref.object,
44d847b7 DH	382	&nouveau_bo_driver,
	383	dev->anon_inode->i_mapping,
	384	DRM_FILE_PAGE_OFFSET,
ebb945a9 BS	385	bits <= 32 ? true : false);
	386	if (ret) {
	387	NV_ERROR(drm, "error initialising bo driver, %d\n", ret);
	388	return ret;
	389	}
	390
	391	/* VRAM init */
967e7bde BS	392	drm->gem.vram_available = nvkm_fb(&drm->device)->ram->size;
967e7bde BS	393	drm->gem.vram_available -= nvkm_instmem(&drm->device)->reserved;
ebb945a9 BS	394
	395	ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_VRAM,
	396	drm->gem.vram_available >> PAGE_SHIFT);
	397	if (ret) {
	398	NV_ERROR(drm, "VRAM mm init failed, %d\n", ret);
	399	return ret;
	400	}
	401
967e7bde BS	402	drm->ttm.mtrr = arch_phys_wc_add(nv_device_resource_start(nvkm_device(&drm->device), 1),
967e7bde BS	403	nv_device_resource_len(nvkm_device(&drm->device), 1));
ebb945a9 BS	404
	405	/* GART init */
	406	if (drm->agp.stat != ENABLED) {
967e7bde	407	drm->gem.gart_available = nvkm_vmmgr(&drm->device)->limit;
ebb945a9 BS	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
247d36d7 AL	436	arch_phys_wc_del(drm->ttm.mtrr);
247d36d7 AL	437	drm->ttm.mtrr = 0;
6ee73861	438	}