source: trunk/modules/vci_io_bridge/include/soclib/io_bridge.h

Last change on this file was 715, checked in by cfuguet, 12 years ago

vci_io_bridge:

  • erasing XICU base and size registers. There registers are not used anymore because routing through INT network is done by using special attribute of IOX mapping segments.
  • bugfix: adding config_cmd_to_config_rsp registers for transmitting SRCID, TRDID and PKTID. Before, r_config_cmd registers were used for transmitting these informations to CONFIG_RSP FSM, but these registers can be simultaneously modified by the CONFIG_CMD FSM.
  • adding a masking table for SRCID in the DMA_CMD FSM. This masking table is used to replace SRCID global bits of commands coming from external DMA peripherals by the IOB cluster global bits. This way, the responses for DMA peripheral commands, will come through the same IOB. In the same manner, the DMA_RSP FSM masks the global bits of RSRCID before sending to DMA external peripherals.
  • introduction of an IO transaction table in the CONFIG_CMD FSM. This table is used to store SRCID and TRDID of incoming commands from the INT network. The SRCID and TRDID of these commands is replaced by the IOB IOX SRCID and table index respectively. The goal is to force that responses to these commands come back trough the same IOB. The CONFIG_RSP FSM restores both SRCID and TRDID by reading the table.
File size: 2.6 KB
Line 
1/*
2 * SOCLIB_LGPL_HEADER_BEGIN
3 *
4 * This file is part of SoCLib, GNU LGPLv2.1.
5 *
6 * SoCLib is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU Lesser General Public License as published
8 * by the Free Software Foundation; version 2.1 of the License.
9 *
10 * SoCLib is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with SoCLib; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
18 * 02110-1301 USA
19 *
20 * SOCLIB_LGPL_HEADER_END
21 *
22 * Copyright (c) UPMC, Lip6, Asim
23 * alain greiner
24 *
25 * Maintainers: alain
26 */
27#ifndef IO_BRIDGE_REGS_H
28#define IO_BRIDGE_REGS_H
29
30// IOB Configuration registers
31// Minimal required segment size = 64 bytes (16 words)
32enum
33{
34 IOB_IOMMU_PTPR = 0, // R/W : Page Table Pointer Register
35 IOB_IOMMU_ACTIVE = 1, // R/W : IOMMU activated if not 0
36 IOB_IOMMU_BVAR = 2, // R : Bad Virtual Address
37 IOB_IOMMU_ETR = 3, // R : Error type
38 IOB_IOMMU_BAD_ID = 4, // R : Faulty peripheral Index (SRCID)
39 IOB_INVAL_PTE = 5, // W : Invalidate PTE (using virtual address)
40 IOB_WTI_ENABLE = 6, // R/W : Enable WTI (both IOB and external IRQs)
41 IOB_WTI_ADDR_LO = 7, // R/W : IOB WTI address (32 LSB bits)
42 IOB_WTI_ADDR_HI = 8, // R/W : IOB WTI address (32 MSB bits)
43 /**/
44 IOB_SPAN = 16,
45};
46
47
48// IOMMU Error Type
49enum mmu_error_type_e
50{
51 MMU_NONE = 0x0000, // None
52 MMU_WRITE_ACCES_VIOLATION = 0x0008, // Write access to non writable page
53 MMU_WRITE_PT1_ILLEGAL_ACCESS = 0x0040, // Write Bus Error accessing Table 1
54 MMU_READ_PT1_UNMAPPED = 0x1001, // Read Page fault on Page Table 1
55 MMU_READ_PT2_UNMAPPED = 0x1002, // Read Page fault on Page Table 2
56 MMU_READ_PT1_ILLEGAL_ACCESS = 0x1040, // Read Bus Error in Table1 access
57 MMU_READ_PT2_ILLEGAL_ACCESS = 0x1080, // Read Bus Error in Table2 access
58 MMU_READ_DATA_ILLEGAL_ACCESS = 0x1100, // Read Bus Error in cache access
59};
60
61#endif /* IO_BRIDGE_REGS_H */
62
63// Local Variables:
64// tab-width: 4
65// c-basic-offset: 4
66// c-file-offsets:((innamespace . 0)(inline-open . 0))
67// indent-tabs-mode: nil
68// End:
69
70// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=4:softtabstop=4
71
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