mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 13:56:53 +07:00
d1cc1732cc
This change adds support for accessing the USB shim from within the kernel. Note that this change by itself does not allow the kernel to act as a host or as a device; it merely exposes the built-in on-chip hardware to the kernel. The <arch/usb_host.h> and <arch/usb_host_def.h> headers are empty at the moment because the kernel does not require any types or definitions specific to the tilegx USB shim; the generic USB core code is all we need. The headers are left in as stubs so that we don't need to modify the hypervisor header (drv_usb_host_intf.h) from upstream. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
100 lines
2.7 KiB
C
100 lines
2.7 KiB
C
/*
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* Copyright 2012 Tilera Corporation. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, version 2.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for
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* more details.
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*/
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/* This file is machine-generated; DO NOT EDIT! */
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#include "gxio/iorpc_usb_host.h"
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struct cfg_interrupt_param {
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union iorpc_interrupt interrupt;
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};
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int gxio_usb_host_cfg_interrupt(gxio_usb_host_context_t * context, int inter_x,
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int inter_y, int inter_ipi, int inter_event)
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{
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struct cfg_interrupt_param temp;
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struct cfg_interrupt_param *params = &temp;
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params->interrupt.kernel.x = inter_x;
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params->interrupt.kernel.y = inter_y;
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params->interrupt.kernel.ipi = inter_ipi;
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params->interrupt.kernel.event = inter_event;
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return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params,
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sizeof(*params), GXIO_USB_HOST_OP_CFG_INTERRUPT);
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}
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EXPORT_SYMBOL(gxio_usb_host_cfg_interrupt);
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struct register_client_memory_param {
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HV_PTE pte;
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unsigned int flags;
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};
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int gxio_usb_host_register_client_memory(gxio_usb_host_context_t * context,
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HV_PTE pte, unsigned int flags)
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{
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struct register_client_memory_param temp;
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struct register_client_memory_param *params = &temp;
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params->pte = pte;
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params->flags = flags;
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return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params,
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sizeof(*params),
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GXIO_USB_HOST_OP_REGISTER_CLIENT_MEMORY);
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}
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EXPORT_SYMBOL(gxio_usb_host_register_client_memory);
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struct get_mmio_base_param {
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HV_PTE base;
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};
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int gxio_usb_host_get_mmio_base(gxio_usb_host_context_t * context, HV_PTE *base)
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{
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int __result;
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struct get_mmio_base_param temp;
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struct get_mmio_base_param *params = &temp;
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__result =
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hv_dev_pread(context->fd, 0, (HV_VirtAddr) params, sizeof(*params),
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GXIO_USB_HOST_OP_GET_MMIO_BASE);
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*base = params->base;
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return __result;
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}
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EXPORT_SYMBOL(gxio_usb_host_get_mmio_base);
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struct check_mmio_offset_param {
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unsigned long offset;
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unsigned long size;
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};
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int gxio_usb_host_check_mmio_offset(gxio_usb_host_context_t * context,
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unsigned long offset, unsigned long size)
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{
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struct check_mmio_offset_param temp;
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struct check_mmio_offset_param *params = &temp;
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params->offset = offset;
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params->size = size;
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return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params,
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sizeof(*params),
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GXIO_USB_HOST_OP_CHECK_MMIO_OFFSET);
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}
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EXPORT_SYMBOL(gxio_usb_host_check_mmio_offset);
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