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/*
* 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"
#include "drm_legacy.h"
#include <core/tegra.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 nvkm_fb *fb = nvxx_fb(&drm->device);
man->priv = fb;
return 0;
}
static int
nouveau_vram_manager_fini(struct ttm_mem_type_manager *man)
{
man->priv = NULL;
return 0;
}
static inline void
nvkm_mem_node_cleanup(struct nvkm_mem *node)
{
if (node->vma[0].node) {
nvkm_vm_unmap(&node->vma[0]);
nvkm_vm_put(&node->vma[0]);
}
if (node->vma[1].node) {
nvkm_vm_unmap(&node->vma[1]);
nvkm_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 nvkm_ram *ram = nvxx_fb(&drm->device)->ram;
nvkm_mem_node_cleanup(mem->mm_node);
ram->func->put(ram, (struct nvkm_mem **)&mem->mm_node);
}
static int
nouveau_vram_manager_new(struct ttm_mem_type_manager *man,
struct ttm_buffer_object *bo,
const struct ttm_place *place,
struct ttm_mem_reg *mem)
{
struct nouveau_drm *drm = nouveau_bdev(man->bdev);
struct nvkm_ram *ram = nvxx_fb(&drm->device)->ram;
struct nouveau_bo *nvbo = nouveau_bo(bo);
struct nvkm_mem *node;
u32 size_nc = 0;
int ret;
if (drm->device.info.ram_size == 0)
return -ENOMEM;
if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG)
size_nc = 1 << nvbo->page_shift;
ret = ram->func->get(ram, 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;
}
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,
};
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)
{
nvkm_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,
const struct ttm_place *place,
struct ttm_mem_reg *mem)
{
struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
struct nouveau_bo *nvbo = nouveau_bo(bo);
struct nvkm_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_TNT:
case NV_DEVICE_INFO_V0_CELSIUS:
case NV_DEVICE_INFO_V0_KELVIN:
case NV_DEVICE_INFO_V0_RANKINE:
case NV_DEVICE_INFO_V0_CURIE:
break;
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:
case NV_DEVICE_INFO_V0_MAXWELL:
node->memtype = (nvbo->tile_flags & 0xff00) >> 8;
break;
default:
NV_WARN(drm, "%s: unhandled family type %x\n", __func__,
drm->device.info.family);
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 <subdev/mmu/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 nvkm_mmu *mmu = nvxx_mmu(&drm->device);
struct nv04_mmu *priv = (void *)mmu;
struct nvkm_vm *vm = NULL;
nvkm_vm_ref(priv->vm, &vm, NULL);
man->priv = vm;
return 0;
}
static int
nv04_gart_manager_fini(struct ttm_mem_type_manager *man)
{
struct nvkm_vm *vm = man->priv;
nvkm_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 nvkm_mem *node = mem->mm_node;
if (node->vma[0].node)
nvkm_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,
const struct ttm_place *place,
struct ttm_mem_reg *mem)
{
struct nvkm_mem *node;
int ret;
node = kzalloc(sizeof(*node), GFP_KERNEL);
if (!node)
return -ENOMEM;
node->page_shift = 12;
ret = nvkm_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_legacy_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 nvkm_device *device = nvxx_device(&drm->device);
struct nvkm_pci *pci = device->pci;
struct drm_device *dev = drm->dev;
u8 bits;
int ret;
if (pci && pci->agp.bridge) {
drm->agp.bridge = pci->agp.bridge;
drm->agp.base = pci->agp.base;
drm->agp.size = pci->agp.size;
drm->agp.cma = pci->agp.cma;
}
bits = nvxx_mmu(&drm->device)->dma_bits;
if (nvxx_device(&drm->device)->func->pci) {
if (drm->agp.bridge)
bits = 32;
} else if (device->func->tegra) {
struct nvkm_device_tegra *tegra = device->func->tegra(device);
/*
* If the platform can use a IOMMU, then the addressable DMA
* space is constrained by the IOMMU bit
*/
if (tegra->func->iommu_bit)
bits = min(bits, tegra->func->iommu_bit);
}
ret = dma_set_mask(dev->dev, DMA_BIT_MASK(bits));
if (ret && bits != 32) {
bits = 32;
ret = dma_set_mask(dev->dev, DMA_BIT_MASK(bits));
}
if (ret)
return ret;
ret = dma_set_coherent_mask(dev->dev, DMA_BIT_MASK(bits));
if (ret)
dma_set_coherent_mask(dev->dev, 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 = drm->device.info.ram_user;
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(device->func->resource_addr(device, 1),
device->func->resource_size(device, 1));
/* GART init */
if (!drm->agp.bridge) {
drm->gem.gart_available = nvxx_mmu(&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)
{
ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_VRAM);
ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_TT);
ttm_bo_device_release(&drm->ttm.bdev);
nouveau_ttm_global_release(drm);
arch_phys_wc_del(drm->ttm.mtrr);
drm->ttm.mtrr = 0;
}