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dc4ee6ca91
make use of it where possible. This primarily brings in support for newer hardware, and FreeBSD is not yet able to support the abundance of IRQs on new hardware and many features in the Ethernet driver. Because of the changes to IRQs in the Simple Executive, we have to maintain our own list of Octeon IRQs now, which probably can be pared-down and be specific to the CIU interrupt unit soon, and when other interrupt mechanisms are added they can maintain their own definitions. Remove unmasking of interrupts from within the UART device now that the function used is no longer present in the Simple Executive. The unmasking seems to have been gratuitous as this is more properly handled by the buses above the UART device, and seems to work on that basis.
140 lines
4.1 KiB
C
140 lines
4.1 KiB
C
/***********************license start***************
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* Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights
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* reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of Cavium Inc. nor the names of
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* its contributors may be used to endorse or promote products
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* derived from this software without specific prior written
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* permission.
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* This Software, including technical data, may be subject to U.S. export control
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* laws, including the U.S. Export Administration Act and its associated
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* regulations, and may be subject to export or import regulations in other
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* countries.
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
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* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
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* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
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* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
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* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
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* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
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* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
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* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
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* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
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* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
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***********************license end**************************************/
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#ifndef __CVMX_SHMEM_H__
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#define __CVMX_SHMEM_H__
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/**
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* @file
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*
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* cvmx-shmem provides APIs for setting up shared memory between Linux
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* and simple executive applications.
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*
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* <hr>$Revision: 41586 $<hr>
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "cvmx-spinlock.h"
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#define CVMX_SHMEM_NUM_DSCPTR 8
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#define CVMX_SHMEM_DSCPTR_NAME "SMDR"
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#define CVMX_SHMEM_O_RDONLY 0x00
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#define CVMX_SHMEM_O_WRONLY 0x01
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#define CVMX_SHMEM_O_RDWR 0x02
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#define CVMX_SHMEM_O_CREAT 0x04
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#define CVMX_SHMEM_MAP_PROT_READ 0x01
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#define CVMX_SHMEM_MAP_PROT_WRITE 0x02
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#define CVMX_SHMEM_MAP_EXEC 0x04
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#define CVMX_SHMEM_OWNER_NONE 0xff
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#define CVMX_SHMEM_VADDR64_START 0x500000000ULL
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#define CVMX_SHMEM_VADDR64_END 0x600000000ULL
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#define CVMX_SHMEM_VADDR32_START 0x10000000
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#define CVMX_SHMEM_VADDR32_END 0x18000000
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struct cvmx_shmem_dscptr {
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cvmx_spinlock_t lock;
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uint64_t owner: 8;
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uint64_t is_named_block: 1;
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uint64_t p_wronly: 1;
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uint64_t p_rdwr: 1;
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int32_t use_count; /* must use atomic operation to maintain count */
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const char *name;
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void *vaddr;
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uint64_t paddr;
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uint32_t size;
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uint64_t alignment;
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};
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struct cvmx_shmem_smdr {
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cvmx_spinlock_t lock;
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struct cvmx_shmem_dscptr shmd[CVMX_SHMEM_NUM_DSCPTR];
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void *break64; /* Keep track of unused 64 bit virtual address space */
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};
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struct cvmx_shmem_smdr *cvmx_shmem_init(void);
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/**
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* Create a piece memory out of named block
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*
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* @param name Named block name
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* @param flag create flag
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*/
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struct cvmx_shmem_dscptr *cvmx_shmem_named_block_open(char *name, uint32_t size, int oflag);
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/**
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* Update TLB mapping based on the descriptor
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*/
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void* cvmx_shmem_map(struct cvmx_shmem_dscptr *desc, int pflag);
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/**
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* Remove the TLB mapping created for the descriptor
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*/
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void cvmx_shmem_unmap(struct cvmx_shmem_dscptr *desc);
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/**
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* Close the share memory,
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*
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* @Param remove Remove the named block if it is created by the application
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*/
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int cvmx_shmem_close(struct cvmx_shmem_dscptr *desc, int remove);
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/**
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* Debug function, dump all SMDR descriptors
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*/
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void cvmx_shmem_show(void);
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#ifdef __cplusplus
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}
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#endif
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#endif
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