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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/gpu/drm/radeon/mkregtable.c | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/radeon/mkregtable.c')
-rw-r--r-- | drivers/gpu/drm/radeon/mkregtable.c | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/mkregtable.c b/drivers/gpu/drm/radeon/mkregtable.c new file mode 100644 index 0000000000..52a7246fed --- /dev/null +++ b/drivers/gpu/drm/radeon/mkregtable.c @@ -0,0 +1,280 @@ +// SPDX-License-Identifier: MIT +/* utility to create the register check tables + * this includes inlined list.h safe for userspace. + * + * Copyright 2009 Jerome Glisse + * Copyright 2009 Red Hat Inc. + * + * Authors: + * Jerome Glisse + * Dave Airlie + */ + +#include <sys/types.h> +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include <regex.h> +#include <libgen.h> + +#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) +/** + * container_of - cast a member of a structure out to the containing structure + * @ptr: the pointer to the member. + * @type: the type of the container struct this is embedded in. + * @member: the name of the member within the struct. + * + */ +#define container_of(ptr, type, member) ({ \ + const typeof(((type *)0)->member)*__mptr = (ptr); \ + (type *)((char *)__mptr - offsetof(type, member)); }) + +/* + * Simple doubly linked list implementation. + * + * Some of the internal functions ("__xxx") are useful when + * manipulating whole lists rather than single entries, as + * sometimes we already know the next/prev entries and we can + * generate better code by using them directly rather than + * using the generic single-entry routines. + */ + +struct list_head { + struct list_head *next, *prev; +}; + + +static inline void INIT_LIST_HEAD(struct list_head *list) +{ + list->next = list; + list->prev = list; +} + +/* + * Insert a new entry between two known consecutive entries. + * + * This is only for internal list manipulation where we know + * the prev/next entries already! + */ +#ifndef CONFIG_DEBUG_LIST +static inline void __list_add(struct list_head *new, + struct list_head *prev, struct list_head *next) +{ + next->prev = new; + new->next = next; + new->prev = prev; + prev->next = new; +} +#else +extern void __list_add(struct list_head *new, + struct list_head *prev, struct list_head *next); +#endif + +/** + * list_add_tail - add a new entry + * @new: new entry to be added + * @head: list head to add it before + * + * Insert a new entry before the specified head. + * This is useful for implementing queues. + */ +static inline void list_add_tail(struct list_head *new, struct list_head *head) +{ + __list_add(new, head->prev, head); +} + +/** + * list_entry - get the struct for this entry + * @ptr: the &struct list_head pointer. + * @type: the type of the struct this is embedded in. + * @member: the name of the list_head within the struct. + */ +#define list_entry(ptr, type, member) \ + container_of(ptr, type, member) + +/** + * list_for_each_entry - iterate over list of given type + * @pos: the type * to use as a loop cursor. + * @head: the head for your list. + * @member: the name of the list_head within the struct. + */ +#define list_for_each_entry(pos, head, member) \ + for (pos = list_entry((head)->next, typeof(*pos), member); \ + &pos->member != (head); \ + pos = list_entry(pos->member.next, typeof(*pos), member)) + +struct offset { + struct list_head list; + unsigned offset; +}; + +struct table { + struct list_head offsets; + unsigned offset_max; + unsigned nentry; + unsigned *table; + char *gpu_prefix; +}; + +static struct offset *offset_new(unsigned o) +{ + struct offset *offset; + + offset = (struct offset *)malloc(sizeof(struct offset)); + if (offset) { + INIT_LIST_HEAD(&offset->list); + offset->offset = o; + } + return offset; +} + +static void table_offset_add(struct table *t, struct offset *offset) +{ + list_add_tail(&offset->list, &t->offsets); +} + +static void table_init(struct table *t) +{ + INIT_LIST_HEAD(&t->offsets); + t->offset_max = 0; + t->nentry = 0; + t->table = NULL; +} + +static void table_print(struct table *t) +{ + unsigned nlloop, i, j, n, c, id; + + nlloop = (t->nentry + 3) / 4; + c = t->nentry; + printf("static const unsigned %s_reg_safe_bm[%d] = {\n", t->gpu_prefix, + t->nentry); + for (i = 0, id = 0; i < nlloop; i++) { + n = 4; + if (n > c) + n = c; + c -= n; + for (j = 0; j < n; j++) { + if (j == 0) + printf("\t"); + else + printf(" "); + printf("0x%08X,", t->table[id++]); + } + printf("\n"); + } + printf("};\n"); +} + +static int table_build(struct table *t) +{ + struct offset *offset; + unsigned i, m; + + t->nentry = ((t->offset_max >> 2) + 31) / 32; + t->table = (unsigned *)malloc(sizeof(unsigned) * t->nentry); + if (t->table == NULL) + return -1; + memset(t->table, 0xff, sizeof(unsigned) * t->nentry); + list_for_each_entry(offset, &t->offsets, list) { + i = (offset->offset >> 2) / 32; + m = (offset->offset >> 2) & 31; + m = 1 << m; + t->table[i] ^= m; + } + return 0; +} + +static char gpu_name[10]; +static int parser_auth(struct table *t, const char *filename) +{ + FILE *file; + regex_t mask_rex; + regmatch_t match[4]; + char buf[1024]; + size_t end; + int len; + int done = 0; + int r; + unsigned o; + struct offset *offset; + char last_reg_s[10]; + int last_reg; + + if (regcomp + (&mask_rex, "(0x[0-9a-fA-F]*) *([_a-zA-Z0-9]*)", REG_EXTENDED)) { + fprintf(stderr, "Failed to compile regular expression\n"); + return -1; + } + file = fopen(filename, "r"); + if (file == NULL) { + fprintf(stderr, "Failed to open: %s\n", filename); + return -1; + } + fseek(file, 0, SEEK_END); + end = ftell(file); + fseek(file, 0, SEEK_SET); + + /* get header */ + if (fgets(buf, 1024, file) == NULL) { + fclose(file); + return -1; + } + + /* first line will contain the last register + * and gpu name */ + sscanf(buf, "%9s %9s", gpu_name, last_reg_s); + t->gpu_prefix = gpu_name; + last_reg = strtol(last_reg_s, NULL, 16); + + do { + if (fgets(buf, 1024, file) == NULL) { + fclose(file); + return -1; + } + len = strlen(buf); + if (ftell(file) == end) + done = 1; + if (len) { + r = regexec(&mask_rex, buf, 4, match, 0); + if (r == REG_NOMATCH) { + } else if (r) { + fprintf(stderr, + "Error matching regular expression %d in %s\n", + r, filename); + fclose(file); + return -1; + } else { + buf[match[0].rm_eo] = 0; + buf[match[1].rm_eo] = 0; + buf[match[2].rm_eo] = 0; + o = strtol(&buf[match[1].rm_so], NULL, 16); + offset = offset_new(o); + table_offset_add(t, offset); + if (o > t->offset_max) + t->offset_max = o; + } + } + } while (!done); + fclose(file); + if (t->offset_max < last_reg) + t->offset_max = last_reg; + return table_build(t); +} + +int main(int argc, char *argv[]) +{ + struct table t; + + if (argc != 2) { + fprintf(stderr, "Usage: %s <authfile>\n", argv[0]); + exit(1); + } + table_init(&t); + if (parser_auth(&t, argv[1])) { + fprintf(stderr, "Failed to parse file %s\n", argv[1]); + return -1; + } + table_print(&t); + return 0; +} |