// SPDX-License-Identifier: GPL-2.0 OR MIT
/*
* Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA,
* Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA,
*
* 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 <linux/limits.h>
#include <drm/ttm/ttm_range_manager.h>
#include <drm/drm_cache.h>
#include "nouveau_drv.h"
#include "nouveau_gem.h"
#include "nouveau_mem.h"
#include "nouveau_ttm.h"
#include <core/tegra.h>
static void
nouveau_manager_del(struct ttm_resource_manager *man,
struct ttm_resource *reg)
{
nouveau_mem_del(man, reg);
}
static bool
nouveau_manager_intersects(struct ttm_resource_manager *man,
struct ttm_resource *res,
const struct ttm_place *place,
size_t size)
{
return nouveau_mem_intersects(res, place, size);
}
static bool
nouveau_manager_compatible(struct ttm_resource_manager *man,
struct ttm_resource *res,
const struct ttm_place *place,
size_t size)
{
return nouveau_mem_compatible(res, place, size);
}
static int
nouveau_vram_manager_new(struct ttm_resource_manager *man,
struct ttm_buffer_object *bo,
const struct ttm_place *place,
struct ttm_resource **res)
{
struct nouveau_bo *nvbo = nouveau_bo(bo);
struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
int ret;
if (drm->client.device.info.ram_size == 0)
return -ENOMEM;
ret = nouveau_mem_new(drm, nvbo->kind, nvbo->comp, res);
if (ret)
return ret;
ttm_resource_init(bo, place, *res);
ret = nouveau_mem_vram(*res, nvbo->contig, nvbo->page);
if (ret) {
nouveau_mem_del(man, *res);
return ret;
}
return 0;
}
const struct ttm_resource_manager_func nouveau_vram_manager = {
.alloc = nouveau_vram_manager_new,
.free = nouveau_manager_del,
.intersects = nouveau_manager_intersects,
.compatible = nouveau_manager_compatible,
};
static int
nouveau_gart_manager_new(struct ttm_resource_manager *man,
struct ttm_buffer_object *bo,
const struct ttm_place *place,
struct ttm_resource **res)
{
struct nouveau_bo *nvbo = nouveau_bo(bo);
struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
int ret;
ret = nouveau_mem_new(drm, nvbo->kind, nvbo->comp, res);
if (ret)
return ret;
ttm_resource_init(bo, place, *res);
(*res)->start = 0;
return 0;
}
const struct ttm_resource_manager_func nouveau_gart_manager = {
.alloc = nouveau_gart_manager_new,
.free = nouveau_manager_del,
.intersects = nouveau_manager_intersects,
.compatible = nouveau_manager_compatible,
};
static int
nv04_gart_manager_new(struct ttm_resource_manager *man,
struct ttm_buffer_object *bo,
const struct ttm_place *place,
struct ttm_resource **res)
{
struct nouveau_bo *nvbo = nouveau_bo(bo);
struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
struct nouveau_mem *mem;
int ret;
ret = nouveau_mem_new(drm, nvbo->kind, nvbo->comp, res);
if (ret)
return ret;
mem = nouveau_mem(*res);
ttm_resource_init(bo, place, *res);
ret = nvif_vmm_get(&drm->client.vmm.vmm, PTES, false, 12, 0,
(long)(*res)->size, &mem->vma[0]);
if (ret) {
nouveau_mem_del(man, *res);
return ret;
}
(*res)->start = mem->vma[0].addr >> PAGE_SHIFT;
return 0;
}
const struct ttm_resource_manager_func nv04_gart_manager = {
.alloc = nv04_gart_manager_new,
.free = nouveau_manager_del,
.intersects = nouveau_manager_intersects,
.compatible = nouveau_manager_compatible,
};
static int
nouveau_ttm_init_host(struct nouveau_drm *drm, u8 kind)
{
struct nvif_mmu *mmu = &drm->client.mmu;
int typei;
typei = nvif_mmu_type(mmu, NVIF_MEM_HOST | NVIF_MEM_MAPPABLE |
kind | NVIF_MEM_COHERENT);
if (typei < 0)
return -ENOSYS;
drm->ttm.type_host[!!kind] = typei;
typei = nvif_mmu_type(mmu, NVIF_MEM_HOST | NVIF_MEM_MAPPABLE | kind);
if (typei < 0)
return -ENOSYS;
drm->ttm.type_ncoh[!!kind] = typei;
return 0;
}
static int
nouveau_ttm_init_vram(struct nouveau_drm *drm)
{
if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
struct ttm_resource_manager *man = kzalloc(sizeof(*man), GFP_KERNEL);
if (!man)
return -ENOMEM;
man->func = &nouveau_vram_manager;
ttm_resource_manager_init(man, &drm->ttm.bdev,
drm->gem.vram_available >> PAGE_SHIFT);
ttm_set_driver_manager(&drm->ttm.bdev, TTM_PL_VRAM, man);
ttm_resource_manager_set_used(man, true);
return 0;
} else {
return ttm_range_man_init(&drm->ttm.bdev, TTM_PL_VRAM, false,
drm->gem.vram_available >> PAGE_SHIFT);
}
}
static void
nouveau_ttm_fini_vram(struct nouveau_drm *drm)
{
struct ttm_resource_manager *man = ttm_manager_type(&drm->ttm.bdev, TTM_PL_VRAM);
if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
ttm_resource_manager_set_used(man, false);
ttm_resource_manager_evict_all(&drm->ttm.bdev, man);
ttm_resource_manager_cleanup(man);
ttm_set_driver_manager(&drm->ttm.bdev, TTM_PL_VRAM, NULL);
kfree(man);
} else
ttm_range_man_fini(&drm->ttm.bdev, TTM_PL_VRAM);
}
static int
nouveau_ttm_init_gtt(struct nouveau_drm *drm)
{
struct ttm_resource_manager *man;
unsigned long size_pages = drm->gem.gart_available >> PAGE_SHIFT;
const struct ttm_resource_manager_func *func = NULL;
if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)
func = &nouveau_gart_manager;
else if (!drm->agp.bridge)
func = &nv04_gart_manager;
else
return ttm_range_man_init(&drm->ttm.bdev, TTM_PL_TT, true,
size_pages);
man = kzalloc(sizeof(*man), GFP_KERNEL);
if (!man)
return -ENOMEM;
man->func = func;
man->use_tt = true;
ttm_resource_manager_init(man, &drm->ttm.bdev, size_pages);
ttm_set_driver_manager(&drm->ttm.bdev, TTM_PL_TT, man);
ttm_resource_manager_set_used(man, true);
return 0;
}
static void
nouveau_ttm_fini_gtt(struct nouveau_drm *drm)
{
struct ttm_resource_manager *man = ttm_manager_type(&drm->ttm.bdev, TTM_PL_TT);
if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA &&
drm->agp.bridge)
ttm_range_man_fini(&drm->ttm.bdev, TTM_PL_TT);
else {
ttm_resource_manager_set_used(man, false);
ttm_resource_manager_evict_all(&drm->ttm.bdev, man);
ttm_resource_manager_cleanup(man);
ttm_set_driver_manager(&drm->ttm.bdev, TTM_PL_TT, NULL);
kfree(man);
}
}
int
nouveau_ttm_init(struct nouveau_drm *drm)
{
struct nvkm_device *device = nvxx_device(drm);
struct nvkm_pci *pci = device->pci;
struct nvif_mmu *mmu = &drm->client.mmu;
struct drm_device *dev = drm->dev;
int typei, ret;
ret = nouveau_ttm_init_host(drm, 0);
if (ret)
return ret;
if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA &&
drm->client.device.info.chipset != 0x50) {
ret = nouveau_ttm_init_host(drm, NVIF_MEM_KIND);
if (ret)
return ret;
}
if (drm->client.device.info.platform != NV_DEVICE_INFO_V0_SOC &&
drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
typei = nvif_mmu_type(mmu, NVIF_MEM_VRAM | NVIF_MEM_MAPPABLE |
NVIF_MEM_KIND |
NVIF_MEM_COMP |
NVIF_MEM_DISP);
if (typei < 0)
return -ENOSYS;
drm->ttm.type_vram = typei;
} else {
drm->ttm.type_vram = -1;
}
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;
}
ret = ttm_device_init(&drm->ttm.bdev, &nouveau_bo_driver, drm->dev->dev,
dev->anon_inode->i_mapping,
dev->vma_offset_manager,
drm_need_swiotlb(drm->client.mmu.dmabits),
drm->client.mmu.dmabits <= 32);
if (ret) {
NV_ERROR(drm, "error initialising bo driver, %d\n", ret);
return ret;
}
/* VRAM init */
drm->gem.vram_available = drm->client.device.info.ram_user;
arch_io_reserve_memtype_wc(device->func->resource_addr(device, 1),
device->func->resource_size(device, 1));
ret = nouveau_ttm_init_vram(drm);
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 = drm->client.vmm.vmm.limit;
} else {
drm->gem.gart_available = drm->agp.size;
}
ret = nouveau_ttm_init_gtt(drm);
if (ret) {
NV_ERROR(drm, "GART mm init failed, %d\n", ret);
return ret;
}
mutex_init(&drm->ttm.io_reserve_mutex);
INIT_LIST_HEAD(&drm->ttm.io_reserve_lru);
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)
{
struct nvkm_device *device = nvxx_device(drm);
nouveau_ttm_fini_vram(drm);
nouveau_ttm_fini_gtt(drm);
ttm_device_fini(&drm->ttm.bdev);
arch_phys_wc_del(drm->ttm.mtrr);
drm->ttm.mtrr = 0;
arch_io_free_memtype_wc(device->func->resource_addr(device, 1),
device->func->resource_size(device, 1));
}
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