214 lines
9.2 KiB
C
214 lines
9.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2020 Marvell International Ltd.
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*/
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#ifndef _CVMX_GLOBAL_RESOURCES_T_
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#define _CVMX_GLOBAL_RESOURCES_T_
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#define CVMX_GLOBAL_RESOURCES_DATA_NAME "cvmx-global-resources"
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/*In macros below abbreviation GR stands for global resources. */
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#define CVMX_GR_TAG_INVALID \
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cvmx_get_gr_tag('i', 'n', 'v', 'a', 'l', 'i', 'd', '.', '.', '.', '.', '.', '.', '.', '.', \
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'.')
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/*Tag for pko que table range. */
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#define CVMX_GR_TAG_PKO_QUEUES \
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cvmx_get_gr_tag('c', 'v', 'm', '_', 'p', 'k', 'o', '_', 'q', 'u', 'e', 'u', 's', '.', '.', \
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'.')
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/*Tag for a pko internal ports range */
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#define CVMX_GR_TAG_PKO_IPORTS \
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cvmx_get_gr_tag('c', 'v', 'm', '_', 'p', 'k', 'o', '_', 'i', 'p', 'o', 'r', 't', '.', '.', \
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'.')
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#define CVMX_GR_TAG_FPA \
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cvmx_get_gr_tag('c', 'v', 'm', '_', 'f', 'p', 'a', '.', '.', '.', '.', '.', '.', '.', '.', \
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'.')
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#define CVMX_GR_TAG_FAU \
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cvmx_get_gr_tag('c', 'v', 'm', '_', 'f', 'a', 'u', '.', '.', '.', '.', '.', '.', '.', '.', \
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'.')
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#define CVMX_GR_TAG_SSO_GRP(n) \
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cvmx_get_gr_tag('c', 'v', 'm', '_', 's', 's', 'o', '_', '0', (n) + '0', '.', '.', '.', \
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'.', '.', '.');
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#define CVMX_GR_TAG_TIM(n) \
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cvmx_get_gr_tag('c', 'v', 'm', '_', 't', 'i', 'm', '_', (n) + '0', '.', '.', '.', '.', \
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'.', '.', '.')
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#define CVMX_GR_TAG_CLUSTERS(x) \
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cvmx_get_gr_tag('c', 'v', 'm', '_', 'c', 'l', 'u', 's', 't', 'e', 'r', '_', (x + '0'), \
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'.', '.', '.')
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#define CVMX_GR_TAG_CLUSTER_GRP(x) \
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cvmx_get_gr_tag('c', 'v', 'm', '_', 'c', 'l', 'g', 'r', 'p', '_', (x + '0'), '.', '.', \
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'.', '.', '.')
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#define CVMX_GR_TAG_STYLE(x) \
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cvmx_get_gr_tag('c', 'v', 'm', '_', 's', 't', 'y', 'l', 'e', '_', (x + '0'), '.', '.', \
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'.', '.', '.')
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#define CVMX_GR_TAG_QPG_ENTRY(x) \
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cvmx_get_gr_tag('c', 'v', 'm', '_', 'q', 'p', 'g', 'e', 't', '_', (x + '0'), '.', '.', \
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'.', '.', '.')
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#define CVMX_GR_TAG_BPID(x) \
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cvmx_get_gr_tag('c', 'v', 'm', '_', 'b', 'p', 'i', 'd', 's', '_', (x + '0'), '.', '.', \
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'.', '.', '.')
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#define CVMX_GR_TAG_MTAG_IDX(x) \
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cvmx_get_gr_tag('c', 'v', 'm', '_', 'm', 't', 'a', 'g', 'x', '_', (x + '0'), '.', '.', \
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'.', '.', '.')
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#define CVMX_GR_TAG_PCAM(x, y, z) \
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cvmx_get_gr_tag('c', 'v', 'm', '_', 'p', 'c', 'a', 'm', '_', (x + '0'), (y + '0'), \
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(z + '0'), '.', '.', '.', '.')
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#define CVMX_GR_TAG_CIU3_IDT(_n) \
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cvmx_get_gr_tag('c', 'v', 'm', '_', 'c', 'i', 'u', '3', '_', ((_n) + '0'), '_', 'i', 'd', \
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't', '.', '.')
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/* Allocation of the 512 SW INTSTs (in the 12 bit SW INTSN space) */
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#define CVMX_GR_TAG_CIU3_SWINTSN(_n) \
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cvmx_get_gr_tag('c', 'v', 'm', '_', 'c', 'i', 'u', '3', '_', ((_n) + '0'), '_', 's', 'w', \
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'i', 's', 'n')
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#define TAG_INIT_PART(A, B, C, D, E, F, G, H) \
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((((u64)(A) & 0xff) << 56) | (((u64)(B) & 0xff) << 48) | (((u64)(C) & 0xff) << 40) | \
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(((u64)(D) & 0xff) << 32) | (((u64)(E) & 0xff) << 24) | (((u64)(F) & 0xff) << 16) | \
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(((u64)(G) & 0xff) << 8) | (((u64)(H) & 0xff)))
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struct global_resource_tag {
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u64 lo;
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u64 hi;
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};
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enum cvmx_resource_err { CVMX_RESOURCE_ALLOC_FAILED = -1, CVMX_RESOURCE_ALREADY_RESERVED = -2 };
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/*
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* @INTERNAL
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* Creates a tag from the specified characters.
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*/
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static inline struct global_resource_tag cvmx_get_gr_tag(char a, char b, char c, char d, char e,
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char f, char g, char h, char i, char j,
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char k, char l, char m, char n, char o,
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char p)
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{
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struct global_resource_tag tag;
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tag.lo = TAG_INIT_PART(a, b, c, d, e, f, g, h);
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tag.hi = TAG_INIT_PART(i, j, k, l, m, n, o, p);
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return tag;
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}
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static inline int cvmx_gr_same_tag(struct global_resource_tag gr1, struct global_resource_tag gr2)
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{
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return (gr1.hi == gr2.hi) && (gr1.lo == gr2.lo);
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}
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/*
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* @INTERNAL
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* Creates a global resource range that can hold the specified number of
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* elements
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* @param tag is the tag of the range. The taga is created using the method
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* cvmx_get_gr_tag()
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* @param nelements is the number of elements to be held in the resource range.
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*/
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int cvmx_create_global_resource_range(struct global_resource_tag tag, int nelements);
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/*
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* @INTERNAL
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* Allocate nelements in the global resource range with the specified tag. It
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* is assumed that prior
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* to calling this the global resource range has already been created using
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* cvmx_create_global_resource_range().
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* @param tag is the tag of the global resource range.
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* @param nelements is the number of elements to be allocated.
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* @param owner is a 64 bit number that identifes the owner of this range.
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* @aligment specifes the required alignment of the returned base number.
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* Return: returns the base of the allocated range. -1 return value indicates
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* failure.
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*/
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int cvmx_allocate_global_resource_range(struct global_resource_tag tag, u64 owner, int nelements,
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int alignment);
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/*
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* @INTERNAL
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* Allocate nelements in the global resource range with the specified tag.
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* The elements allocated need not be contiguous. It is assumed that prior to
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* calling this the global resource range has already
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* been created using cvmx_create_global_resource_range().
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* @param tag is the tag of the global resource range.
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* @param nelements is the number of elements to be allocated.
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* @param owner is a 64 bit number that identifes the owner of the allocated
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* elements.
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* @param allocated_elements returns indexs of the allocated entries.
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* Return: returns 0 on success and -1 on failure.
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*/
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int cvmx_resource_alloc_many(struct global_resource_tag tag, u64 owner, int nelements,
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int allocated_elements[]);
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int cvmx_resource_alloc_reverse(struct global_resource_tag, u64 owner);
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/*
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* @INTERNAL
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* Reserve nelements starting from base in the global resource range with the
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* specified tag.
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* It is assumed that prior to calling this the global resource range has
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* already been created using cvmx_create_global_resource_range().
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* @param tag is the tag of the global resource range.
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* @param nelements is the number of elements to be allocated.
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* @param owner is a 64 bit number that identifes the owner of this range.
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* @base specifies the base start of nelements.
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* Return: returns the base of the allocated range. -1 return value indicates
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* failure.
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*/
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int cvmx_reserve_global_resource_range(struct global_resource_tag tag, u64 owner, int base,
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int nelements);
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/*
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* @INTERNAL
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* Free nelements starting at base in the global resource range with the
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* specified tag.
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* @param tag is the tag of the global resource range.
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* @param base is the base number
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* @param nelements is the number of elements that are to be freed.
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* Return: returns 0 if successful and -1 on failure.
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*/
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int cvmx_free_global_resource_range_with_base(struct global_resource_tag tag, int base,
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int nelements);
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/*
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* @INTERNAL
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* Free nelements with the bases specified in bases[] with the
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* specified tag.
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* @param tag is the tag of the global resource range.
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* @param bases is an array containing the bases to be freed.
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* @param nelements is the number of elements that are to be freed.
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* Return: returns 0 if successful and -1 on failure.
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*/
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int cvmx_free_global_resource_range_multiple(struct global_resource_tag tag, int bases[],
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int nelements);
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/*
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* @INTERNAL
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* Free elements from the specified owner in the global resource range with the
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* specified tag.
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* @param tag is the tag of the global resource range.
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* @param owner is the owner of resources that are to be freed.
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* Return: returns 0 if successful and -1 on failure.
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*/
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int cvmx_free_global_resource_range_with_owner(struct global_resource_tag tag, int owner);
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/*
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* @INTERNAL
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* Frees all the global resources that have been created.
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* For use only from the bootloader, when it shutdown and boots up the
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* application or kernel.
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*/
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int free_global_resources(void);
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u64 cvmx_get_global_resource_owner(struct global_resource_tag tag, int base);
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/*
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* @INTERNAL
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* Shows the global resource range with the specified tag. Use mainly for debug.
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*/
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void cvmx_show_global_resource_range(struct global_resource_tag tag);
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/*
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* @INTERNAL
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* Shows all the global resources. Used mainly for debug.
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*/
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void cvmx_global_resources_show(void);
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u64 cvmx_allocate_app_id(void);
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u64 cvmx_get_app_id(void);
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#endif
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