linux/drivers/gpu/drm/nouveau/nouveau_ttm.c
Ben Skeggs dc73b45ad4 drm/nouveau: store supported dma mask in vmmgr
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-10-03 13:13:16 +10:00

424 lines
11 KiB
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)
{
/* nothing to do */
return 0;
}
static int
nouveau_vram_manager_fini(struct ttm_mem_type_manager *man)
{
/* nothing to do */
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_mm *mm = man->priv;
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_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;
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;
}
}