mirror of https://gitee.com/openkylin/linux.git
91 lines
2.9 KiB
C
91 lines
2.9 KiB
C
|
/*
|
||
|
|
* IBM eServer eHCA Infiniband device driver for Linux on POWER
|
||
|
|
*
|
||
|
|
* Firmware calls
|
||
|
|
*
|
||
|
|
* Authors: Christoph Raisch <raisch@de.ibm.com>
|
||
|
|
* Hoang-Nam Nguyen <hnguyen@de.ibm.com>
|
||
|
|
* Waleri Fomin <fomin@de.ibm.com>
|
||
|
|
* Gerd Bayer <gerd.bayer@de.ibm.com>
|
||
|
|
*
|
||
|
|
* Copyright (c) 2005 IBM Corporation
|
||
|
|
*
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* This source code is distributed under a dual license of GPL v2.0 and OpenIB
|
||
|
|
* BSD.
|
||
|
|
*
|
||
|
|
* OpenIB BSD License
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions are met:
|
||
|
|
*
|
||
|
|
* Redistributions of source code must retain the above copyright notice, this
|
||
|
|
* list of conditions and the following disclaimer.
|
||
|
|
*
|
||
|
|
* Redistributions in binary form must reproduce the above copyright notice,
|
||
|
|
* this list of conditions and the following disclaimer in the documentation
|
||
|
|
* and/or other materials
|
||
|
|
* provided with the distribution.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
||
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
|
||
|
|
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
|
||
|
|
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __HCP_PHYP_H__
|
||
|
|
#define __HCP_PHYP_H__
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* eHCA page (mapped into memory)
|
||
|
|
* resource to access eHCA register pages in CPU address space
|
||
|
|
*/
|
||
|
|
struct h_galpa {
|
||
|
|
u64 fw_handle;
|
||
|
|
/* for pSeries this is a 64bit memory address where
|
||
|
|
I/O memory is mapped into CPU address space (kv) */
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* resource to access eHCA address space registers, all types
|
||
|
|
*/
|
||
|
|
struct h_galpas {
|
||
|
|
u32 pid; /*PID of userspace galpa checking */
|
||
|
|
struct h_galpa user; /* user space accessible resource,
|
||
|
|
set to 0 if unused */
|
||
|
|
struct h_galpa kernel; /* kernel space accessible resource,
|
||
|
|
set to 0 if unused */
|
||
|
|
};
|
||
|
|
|
||
|
|
static inline u64 hipz_galpa_load(struct h_galpa galpa, u32 offset)
|
||
|
|
{
|
||
|
|
u64 addr = galpa.fw_handle + offset;
|
||
|
|
return *(volatile u64 __force *)addr;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void hipz_galpa_store(struct h_galpa galpa, u32 offset, u64 value)
|
||
|
|
{
|
||
|
|
u64 addr = galpa.fw_handle + offset;
|
||
|
|
*(volatile u64 __force *)addr = value;
|
||
|
|
}
|
||
|
|
|
||
|
|
int hcp_galpas_ctor(struct h_galpas *galpas,
|
||
|
|
u64 paddr_kernel, u64 paddr_user);
|
||
|
|
|
||
|
|
int hcp_galpas_dtor(struct h_galpas *galpas);
|
||
|
|
|
||
|
|
int hcall_map_page(u64 physaddr, u64 * mapaddr);
|
||
|
|
|
||
|
|
int hcall_unmap_page(u64 mapaddr);
|
||
|
|
|
||
|
|
#endif
|