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cvmx-core.c (210286) cvmx-core.c (215990)
1/***********************license start***************
1/***********************license start***************
2 * Copyright (c) 2003-2008 Cavium Networks (support@cavium.com). All rights
3 * reserved.
2 * Copyright (c) 2003-2010 Cavium Networks (support@cavium.com). All rights
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28 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
29 * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
30 * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
31 * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
32 * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
33 * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
34 * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
35 * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
36 * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
37 * PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
37 ***********************license end**************************************/
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38 ***********************license end**************************************/
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43
44
45
44/**
45 * @file
46 *
47 * Module to support operations on core such as TLB config, etc.
48 *
46/**
47 * @file
48 *
49 * Module to support operations on core such as TLB config, etc.
50 *
49 * <hr>$Revision: 41586 $<hr>
51 * <hr>$Revision: 49862 $<hr>
50 *
51 */
52
52 *
53 */
54
55#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
56#include <linux/module.h>
57#include <asm/octeon/cvmx.h>
58#include <asm/octeon/cvmx-core.h>
59#else
53#include "cvmx-config.h"
54#include "cvmx.h"
55#include "cvmx-core.h"
60#include "cvmx-config.h"
61#include "cvmx.h"
62#include "cvmx-core.h"
63#endif
56
57
58/**
59 * Adds a wired TLB entry, and returns the index of the entry added.
60 * Parameters are written to TLB registers without further processing.
61 *
62 * @param hi HI register value
63 * @param lo0 lo0 register value
64 * @param lo1 lo1 register value
65 * @param page_mask pagemask register value
66 *
64
65
66/**
67 * Adds a wired TLB entry, and returns the index of the entry added.
68 * Parameters are written to TLB registers without further processing.
69 *
70 * @param hi HI register value
71 * @param lo0 lo0 register value
72 * @param lo1 lo1 register value
73 * @param page_mask pagemask register value
74 *
67 * @return Success: TLB index used (0-31) or (0-63) for OCTEON Plus
68 * Failure: -1
75 * @return Success: TLB index used (0-31 Octeon, 0-63 Octeon+, or 0-127
76 * Octeon2). Failure: -1
69 */
70int cvmx_core_add_wired_tlb_entry(uint64_t hi, uint64_t lo0, uint64_t lo1, cvmx_tlb_pagemask_t page_mask)
71{
72 uint32_t index;
77 */
78int cvmx_core_add_wired_tlb_entry(uint64_t hi, uint64_t lo0, uint64_t lo1, cvmx_tlb_pagemask_t page_mask)
79{
80 uint32_t index;
73 uint32_t index_limit = 31;
74
81
75 if (!OCTEON_IS_MODEL(OCTEON_CN3XXX))
76 {
77 index_limit=63;
78 }
79
80 CVMX_MF_TLB_WIRED(index);
82 CVMX_MF_TLB_WIRED(index);
81 if (index >= index_limit)
83 if (index >= (unsigned int)cvmx_core_get_tlb_entries())
82 {
83 return(-1);
84 }
85 CVMX_MT_ENTRY_HIGH(hi);
86 CVMX_MT_ENTRY_LO_0(lo0);
87 CVMX_MT_ENTRY_LO_1(lo1);
88 CVMX_MT_PAGEMASK(page_mask);
89 CVMX_MT_TLB_INDEX(index);

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140 * Failure: -1
141 */
142int cvmx_core_add_fixed_tlb_mapping(uint64_t vaddr, uint64_t page0_addr, uint64_t page1_addr, cvmx_tlb_pagemask_t page_mask)
143{
144
145 return(cvmx_core_add_fixed_tlb_mapping_bits(vaddr, page0_addr | TLB_DIRTY | TLB_VALID | TLB_GLOBAL, page1_addr | TLB_DIRTY | TLB_VALID | TLB_GLOBAL, page_mask));
146
147}
84 {
85 return(-1);
86 }
87 CVMX_MT_ENTRY_HIGH(hi);
88 CVMX_MT_ENTRY_LO_0(lo0);
89 CVMX_MT_ENTRY_LO_1(lo1);
90 CVMX_MT_PAGEMASK(page_mask);
91 CVMX_MT_TLB_INDEX(index);

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142 * Failure: -1
143 */
144int cvmx_core_add_fixed_tlb_mapping(uint64_t vaddr, uint64_t page0_addr, uint64_t page1_addr, cvmx_tlb_pagemask_t page_mask)
145{
146
147 return(cvmx_core_add_fixed_tlb_mapping_bits(vaddr, page0_addr | TLB_DIRTY | TLB_VALID | TLB_GLOBAL, page1_addr | TLB_DIRTY | TLB_VALID | TLB_GLOBAL, page_mask));
148
149}
150
151/**
152 * Return number of TLB entries.
153 */
154int cvmx_core_get_tlb_entries(void)
155{
156 if (OCTEON_IS_MODEL(OCTEON_CN3XXX))
157 return 32;
158 else if (OCTEON_IS_MODEL(OCTEON_CN5XXX))
159 return 64;
160 else
161 return 128;
162}