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d1f2b6a051
Configure BAR and MSI for Thor. Add checks for chip id for chip specific code between Orin and Thor. Separate Stream ID's are assigned to upstream and downstream struct device in Rootport client driver. While accessing Rootport local memory upstream Stream ID should be used. While accessing memories over BAR downstream Stream ID should be used. Jira NVIPC-2877 Jira NVIPC-2484 Change-Id: I67df4b78e57b6de36f9bfaf966978f7ee875d596 Signed-off-by: Deepak Badgaiyan <dbadgaiyan@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3226748 Reviewed-by: svcacv <svcacv@nvidia.com> Reviewed-by: Vipin Kumar <vipink@nvidia.com> Reviewed-by: Janardhan Reddy AnnapuReddy <jreddya@nvidia.com> Reviewed-by: Sivagamy Govindasamy <sivagamyg@nvidia.com> GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
154 lines
4.2 KiB
C
154 lines
4.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* SPDX-FileCopyrightText: Copyright (c) 2022-2024, NVIDIA CORPORATION & AFFILIATES.
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* All rights reserved.
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*/
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#ifndef __PCI_CLIENT_H__
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#define __PCI_CLIENT_H__
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#include <nvidia/conftest.h>
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#include <uapi/misc/nvscic2c-pcie-ioctl.h>
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#include "common.h"
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#include "module.h"
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/* forward declaration.*/
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struct vm_area_struct;
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struct dma_buf;
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struct dma_buf_attachment;
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/*
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* PCI client initialization parameters. The fields must remain persistent
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* till deinitialization (exit).
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*/
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struct pci_client_params {
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struct dma_buff_t *self_mem;
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struct pci_aper_t *peer_mem;
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/*
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* @DRV_MODE_EPC: &pci_dev->dev
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* @DRV_MODE_EPF: epf->epc->dev.parent.
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*/
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struct device *dev;
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/*
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* For RootPort separate stream ID's are configured for
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* upstream and downstream access.
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* Hence while using dma_buf API's use device attached with
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* upstream in RootPort.
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*/
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struct device *cdev;
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};
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/* Initialize PCI client either for @DRV_MODE_EPF or @DRV_MODE_EPC. */
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int
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pci_client_init(struct pci_client_params *params, void **pci_client_h);
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/* Teardown of PCI client. */
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void
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pci_client_deinit(void **pci_client_h);
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/* reserve iova using the iova-manager.*/
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int
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pci_client_alloc_iova(void *pci_client_h, size_t size, u64 *address,
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size_t *offset, void **block_h);
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/* free the reserved iova.*/
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int
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pci_client_free_iova(void *pci_client_h, void **block_h);
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int
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pci_client_map_addr(void *pci_client_h, u64 to_iova, phys_addr_t paddr,
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size_t size, int prot);
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size_t
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pci_client_unmap_addr(void *pci_client_h, u64 from_iova, size_t size);
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/* get the pci aperture for a given offset.*/
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int
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pci_client_get_peer_aper(void *pci_client_h, size_t offsetof, size_t size,
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phys_addr_t *phys_addr);
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/* attach dma-buf to pci device.*/
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struct dma_buf_attachment *
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pci_client_dmabuf_attach(void *pci_client_h, struct dma_buf *dmabuff);
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/* detach dma-buf to pci device.*/
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void
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pci_client_dmabuf_detach(void *pci_client_h, struct dma_buf *dmabuff,
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struct dma_buf_attachment *attach);
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/*
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* Users/Units can register for PCI link events as received by
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* @DRV_MODE_EPF or @DRV_MODE_EPC module sbstraction.
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*/
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int
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pci_client_register_for_link_event(void *pci_client_h,
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struct callback_ops *ops, u32 id);
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/* Unregister for PCI link events. - teardown only. */
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int
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pci_client_unregister_for_link_event(void *pci_client_h, u32 id);
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/*
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* Update the PCI link status as received in @DRV_MODE_EPF or @DRV_MODE_EPC
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* module abstraction. Propagate the link status to registered users.
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*/
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int
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pci_client_change_link_status(void *pci_client_h,
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enum nvscic2c_pcie_link status);
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/* Update PCIe error offset with error. */
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int
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pci_client_set_link_aer_error(void *pci_client_h, u32 err);
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/* Helper function to mmap the PCI link status memory to user-space.*/
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int
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pci_client_mmap_link_mem(void *pci_client_h, struct vm_area_struct *vma);
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/* Helper function to mmap eDMA error memory to user-space.*/
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int
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pci_client_mmap_edma_err_mem(void *pci_client_h,
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u32 ep_id, struct vm_area_struct *vma);
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/* Update eDMA xfer error code.*/
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int
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pci_client_set_edma_error(void *pci_client_h, u32 ep_id, u32 err);
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/* Query PCI link status. */
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enum nvscic2c_pcie_link
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pci_client_query_link_status(void *pci_client_h);
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/*
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* Helper functions to set and set driver context from pci_client_h
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*/
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/* Save driver context of DRV_MODE_EPF or DRV_MODE_EPC */
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int
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pci_client_save_driver_ctx(void *pci_client_h, struct driver_ctx_t *drv_ctx);
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/* Getter driver context of DRV_MODE_EPF or DRV_MODE_EPC */
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struct driver_ctx_t *
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pci_client_get_driver_ctx(void *pci_client_h);
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/*getter drv mode */
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enum drv_mode_t
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pci_client_get_drv_mode(void *pci_client_h);
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/* save peer cpu sent by boottrap msg */
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int
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pci_client_save_peer_cpu(void *pci_client_h, enum peer_cpu_t peer_cpu);
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/* Getter the soc/arch of rp */
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enum peer_cpu_t
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pci_client_get_peer_cpu(void *pci_client_h);
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/* Get allocated edma rx desc iova */
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dma_addr_t
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pci_client_get_edma_rx_desc_iova(void *pci_client_h);
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/* pci client raise irq to rp */
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int
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#if defined(PCI_EPC_IRQ_TYPE_ENUM_PRESENT) /* Dropped from Linux 6.8 */
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pci_client_raise_irq(void *pci_client_h, enum pci_epc_irq_type type, u16 num);
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#else
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pci_client_raise_irq(void *pci_client_h, int type, u16 num);
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#endif
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#endif // __PCI_CLIENT_H__
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