275 lines
8.3 KiB
C
275 lines
8.3 KiB
C
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/***********************license start***************
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* Author: Cavium Networks
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*
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* Contact: support@caviumnetworks.com
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* This file is part of the OCTEON SDK
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*
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* Copyright (c) 2003-2009 Cavium Networks
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, Version 2, as
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* published by the Free Software Foundation.
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*
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* This file is distributed in the hope that it will be useful, but
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* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
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* NONINFRINGEMENT. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this file; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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* or visit http://www.gnu.org/licenses/.
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*
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* This file may also be available under a different license from Cavium.
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* Contact Cavium Networks for more information
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***********************license end**************************************/
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/**
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* Typedefs and defines for working with Octeon physical addresses.
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*
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*/
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#ifndef __CVMX_ADDRESS_H__
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#define __CVMX_ADDRESS_H__
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#if 0
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typedef enum {
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CVMX_MIPS_SPACE_XKSEG = 3LL,
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CVMX_MIPS_SPACE_XKPHYS = 2LL,
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CVMX_MIPS_SPACE_XSSEG = 1LL,
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CVMX_MIPS_SPACE_XUSEG = 0LL
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} cvmx_mips_space_t;
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#endif
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typedef enum {
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CVMX_MIPS_XKSEG_SPACE_KSEG0 = 0LL,
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CVMX_MIPS_XKSEG_SPACE_KSEG1 = 1LL,
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CVMX_MIPS_XKSEG_SPACE_SSEG = 2LL,
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CVMX_MIPS_XKSEG_SPACE_KSEG3 = 3LL
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} cvmx_mips_xkseg_space_t;
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/* decodes <14:13> of a kseg3 window address */
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typedef enum {
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CVMX_ADD_WIN_SCR = 0L,
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/* see cvmx_add_win_dma_dec_t for further decode */
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CVMX_ADD_WIN_DMA = 1L,
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CVMX_ADD_WIN_UNUSED = 2L,
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CVMX_ADD_WIN_UNUSED2 = 3L
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} cvmx_add_win_dec_t;
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/* decode within DMA space */
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typedef enum {
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/*
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* Add store data to the write buffer entry, allocating it if
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* necessary.
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*/
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CVMX_ADD_WIN_DMA_ADD = 0L,
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/* send out the write buffer entry to DRAM */
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CVMX_ADD_WIN_DMA_SENDMEM = 1L,
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/* store data must be normal DRAM memory space address in this case */
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/* send out the write buffer entry as an IOBDMA command */
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CVMX_ADD_WIN_DMA_SENDDMA = 2L,
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/* see CVMX_ADD_WIN_DMA_SEND_DEC for data contents */
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/* send out the write buffer entry as an IO write */
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CVMX_ADD_WIN_DMA_SENDIO = 3L,
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/* store data must be normal IO space address in this case */
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/* send out a single-tick command on the NCB bus */
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CVMX_ADD_WIN_DMA_SENDSINGLE = 4L,
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/* no write buffer data needed/used */
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} cvmx_add_win_dma_dec_t;
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/*
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* Physical Address Decode
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*
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* Octeon-I HW never interprets this X (<39:36> reserved
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* for future expansion), software should set to 0.
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*
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* - 0x0 XXX0 0000 0000 to DRAM Cached
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* - 0x0 XXX0 0FFF FFFF
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*
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* - 0x0 XXX0 1000 0000 to Boot Bus Uncached (Converted to 0x1 00X0 1000 0000
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* - 0x0 XXX0 1FFF FFFF + EJTAG to 0x1 00X0 1FFF FFFF)
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*
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* - 0x0 XXX0 2000 0000 to DRAM Cached
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* - 0x0 XXXF FFFF FFFF
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*
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* - 0x1 00X0 0000 0000 to Boot Bus Uncached
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* - 0x1 00XF FFFF FFFF
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*
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* - 0x1 01X0 0000 0000 to Other NCB Uncached
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* - 0x1 FFXF FFFF FFFF devices
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*
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* Decode of all Octeon addresses
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*/
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typedef union {
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uint64_t u64;
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/* mapped or unmapped virtual address */
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struct {
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uint64_t R:2;
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uint64_t offset:62;
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} sva;
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/* mapped USEG virtual addresses (typically) */
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struct {
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uint64_t zeroes:33;
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uint64_t offset:31;
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} suseg;
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/* mapped or unmapped virtual address */
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struct {
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uint64_t ones:33;
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uint64_t sp:2;
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uint64_t offset:29;
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} sxkseg;
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/*
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* physical address accessed through xkphys unmapped virtual
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* address.
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*/
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struct {
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uint64_t R:2; /* CVMX_MIPS_SPACE_XKPHYS in this case */
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uint64_t cca:3; /* ignored by octeon */
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uint64_t mbz:10;
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uint64_t pa:49; /* physical address */
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} sxkphys;
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/* physical address */
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struct {
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uint64_t mbz:15;
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/* if set, the address is uncached and resides on MCB bus */
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uint64_t is_io:1;
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/*
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* the hardware ignores this field when is_io==0, else
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* device ID.
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*/
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uint64_t did:8;
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/* the hardware ignores <39:36> in Octeon I */
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uint64_t unaddr:4;
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uint64_t offset:36;
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} sphys;
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/* physical mem address */
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struct {
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/* techically, <47:40> are dont-cares */
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uint64_t zeroes:24;
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/* the hardware ignores <39:36> in Octeon I */
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uint64_t unaddr:4;
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uint64_t offset:36;
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} smem;
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/* physical IO address */
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struct {
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uint64_t mem_region:2;
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uint64_t mbz:13;
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/* 1 in this case */
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uint64_t is_io:1;
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/*
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* The hardware ignores this field when is_io==0, else
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* device ID.
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*/
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uint64_t did:8;
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/* the hardware ignores <39:36> in Octeon I */
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uint64_t unaddr:4;
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uint64_t offset:36;
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} sio;
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/*
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* Scratchpad virtual address - accessed through a window at
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* the end of kseg3
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*/
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struct {
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uint64_t ones:49;
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/* CVMX_ADD_WIN_SCR (0) in this case */
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cvmx_add_win_dec_t csrdec:2;
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uint64_t addr:13;
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} sscr;
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/* there should only be stores to IOBDMA space, no loads */
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/*
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* IOBDMA virtual address - accessed through a window at the
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* end of kseg3
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*/
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struct {
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uint64_t ones:49;
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uint64_t csrdec:2; /* CVMX_ADD_WIN_DMA (1) in this case */
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uint64_t unused2:3;
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uint64_t type:3;
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uint64_t addr:7;
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} sdma;
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struct {
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uint64_t didspace:24;
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uint64_t unused:40;
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} sfilldidspace;
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} cvmx_addr_t;
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/* These macros for used by 32 bit applications */
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#define CVMX_MIPS32_SPACE_KSEG0 1l
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#define CVMX_ADD_SEG32(segment, add) \
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(((int32_t)segment << 31) | (int32_t)(add))
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/*
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* Currently all IOs are performed using XKPHYS addressing. Linux uses
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* the CvmMemCtl register to enable XKPHYS addressing to IO space from
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* user mode. Future OSes may need to change the upper bits of IO
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* addresses. The following define controls the upper two bits for all
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* IO addresses generated by the simple executive library.
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*/
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#define CVMX_IO_SEG CVMX_MIPS_SPACE_XKPHYS
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/* These macros simplify the process of creating common IO addresses */
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#define CVMX_ADD_SEG(segment, add) ((((uint64_t)segment) << 62) | (add))
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#ifndef CVMX_ADD_IO_SEG
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#define CVMX_ADD_IO_SEG(add) CVMX_ADD_SEG(CVMX_IO_SEG, (add))
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#endif
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#define CVMX_ADDR_DIDSPACE(did) (((CVMX_IO_SEG) << 22) | ((1ULL) << 8) | (did))
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#define CVMX_ADDR_DID(did) (CVMX_ADDR_DIDSPACE(did) << 40)
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#define CVMX_FULL_DID(did, subdid) (((did) << 3) | (subdid))
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/* from include/ncb_rsl_id.v */
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#define CVMX_OCT_DID_MIS 0ULL /* misc stuff */
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#define CVMX_OCT_DID_GMX0 1ULL
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#define CVMX_OCT_DID_GMX1 2ULL
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#define CVMX_OCT_DID_PCI 3ULL
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#define CVMX_OCT_DID_KEY 4ULL
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#define CVMX_OCT_DID_FPA 5ULL
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#define CVMX_OCT_DID_DFA 6ULL
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#define CVMX_OCT_DID_ZIP 7ULL
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#define CVMX_OCT_DID_RNG 8ULL
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#define CVMX_OCT_DID_IPD 9ULL
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#define CVMX_OCT_DID_PKT 10ULL
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#define CVMX_OCT_DID_TIM 11ULL
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#define CVMX_OCT_DID_TAG 12ULL
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/* the rest are not on the IO bus */
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#define CVMX_OCT_DID_L2C 16ULL
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#define CVMX_OCT_DID_LMC 17ULL
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#define CVMX_OCT_DID_SPX0 18ULL
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#define CVMX_OCT_DID_SPX1 19ULL
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#define CVMX_OCT_DID_PIP 20ULL
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#define CVMX_OCT_DID_ASX0 22ULL
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#define CVMX_OCT_DID_ASX1 23ULL
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#define CVMX_OCT_DID_IOB 30ULL
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#define CVMX_OCT_DID_PKT_SEND CVMX_FULL_DID(CVMX_OCT_DID_PKT, 2ULL)
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#define CVMX_OCT_DID_TAG_SWTAG CVMX_FULL_DID(CVMX_OCT_DID_TAG, 0ULL)
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#define CVMX_OCT_DID_TAG_TAG1 CVMX_FULL_DID(CVMX_OCT_DID_TAG, 1ULL)
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#define CVMX_OCT_DID_TAG_TAG2 CVMX_FULL_DID(CVMX_OCT_DID_TAG, 2ULL)
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#define CVMX_OCT_DID_TAG_TAG3 CVMX_FULL_DID(CVMX_OCT_DID_TAG, 3ULL)
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#define CVMX_OCT_DID_TAG_NULL_RD CVMX_FULL_DID(CVMX_OCT_DID_TAG, 4ULL)
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#define CVMX_OCT_DID_TAG_CSR CVMX_FULL_DID(CVMX_OCT_DID_TAG, 7ULL)
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#define CVMX_OCT_DID_FAU_FAI CVMX_FULL_DID(CVMX_OCT_DID_IOB, 0ULL)
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#define CVMX_OCT_DID_TIM_CSR CVMX_FULL_DID(CVMX_OCT_DID_TIM, 0ULL)
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#define CVMX_OCT_DID_KEY_RW CVMX_FULL_DID(CVMX_OCT_DID_KEY, 0ULL)
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#define CVMX_OCT_DID_PCI_6 CVMX_FULL_DID(CVMX_OCT_DID_PCI, 6ULL)
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#define CVMX_OCT_DID_MIS_BOO CVMX_FULL_DID(CVMX_OCT_DID_MIS, 0ULL)
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#define CVMX_OCT_DID_PCI_RML CVMX_FULL_DID(CVMX_OCT_DID_PCI, 0ULL)
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#define CVMX_OCT_DID_IPD_CSR CVMX_FULL_DID(CVMX_OCT_DID_IPD, 7ULL)
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#define CVMX_OCT_DID_DFA_CSR CVMX_FULL_DID(CVMX_OCT_DID_DFA, 7ULL)
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#define CVMX_OCT_DID_MIS_CSR CVMX_FULL_DID(CVMX_OCT_DID_MIS, 7ULL)
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#define CVMX_OCT_DID_ZIP_CSR CVMX_FULL_DID(CVMX_OCT_DID_ZIP, 0ULL)
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#endif /* __CVMX_ADDRESS_H__ */
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