open-gpu-kernel-modules/kernel-open/nvidia/nvlink_pci.h
2022-05-09 13:18:59 -07:00

62 lines
2.7 KiB
C

/*
* SPDX-FileCopyrightText: Copyright (c) 2015 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: MIT
*
* 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, sublicense,
* 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*/
#ifndef _NVLINK_PCI_H_
#define _NVLINK_PCI_H_
#include <linux/pci.h>
#include "nvlink_common.h"
#define NV_PCI_RESOURCE_START(dev, bar) pci_resource_start(dev, (bar))
#define NV_PCI_RESOURCE_SIZE(dev, bar) pci_resource_len(dev, (bar))
#define NV_PCI_RESOURCE_FLAGS(dev, bar) pci_resource_flags(dev, (bar))
#if defined(NVCPU_X86)
#define NV_PCI_RESOURCE_VALID(dev, bar) \
((NV_PCI_RESOURCE_START(dev, bar) != 0) && \
(NV_PCI_RESOURCE_SIZE(dev, bar) != 0) && \
(!((NV_PCI_RESOURCE_FLAGS(dev, bar) & PCI_BASE_ADDRESS_MEM_TYPE_64) && \
((NV_PCI_RESOURCE_START(dev, bar) >> PAGE_SHIFT) > 0xfffffULL))))
#else
#define NV_PCI_RESOURCE_VALID(dev, bar) \
((NV_PCI_RESOURCE_START(dev, bar) != 0) && \
(NV_PCI_RESOURCE_SIZE(dev, bar) != 0))
#endif
#define NV_PCI_DOMAIN_NUMBER(dev) (NvU32)pci_domain_nr(dev->bus)
#define NV_PCI_BUS_NUMBER(dev) (dev)->bus->number
#define NV_PCI_DEVFN(dev) (dev)->devfn
#define NV_PCI_SLOT_NUMBER(dev) PCI_SLOT(NV_PCI_DEVFN(dev))
#define NV_PCI_DEV_FMT NVLINK_PCI_DEV_FMT
#define NV_PCI_DEV_FMT_ARGS(dev) \
NV_PCI_DOMAIN_NUMBER(dev), NV_PCI_BUS_NUMBER(dev), \
NV_PCI_SLOT_NUMBER(dev), PCI_FUNC((dev)->devfn)
#define NVRM_PCICFG_NUM_BARS 6
#define NVRM_PCICFG_BAR_OFFSET(i) (0x10 + (i) * 4)
#define NV_PCIE_CFG_MAX_OFFSET 0x1000
#endif // _NVLINK_PCI_H_