dfltcc.h (4cc06c9afbb4dbed007f06450127ab745d6dc450) dfltcc.h (9fec9f8ea51c782d58a8b86f8e868fc06c782386)
1// SPDX-License-Identifier: Zlib
2#ifndef DFLTCC_H
3#define DFLTCC_H
4
5#include "../zlib_deflate/defutil.h"
6#include <asm/facility.h>
7#include <asm/setup.h>
8

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88#define HTT_DYNAMIC 1
89
90/*
91 * Extension of inflate_state and deflate_state for DFLTCC.
92 */
93struct dfltcc_state {
94 struct dfltcc_param_v0 param; /* Parameter block */
95 struct dfltcc_qaf_param af; /* Available functions */
1// SPDX-License-Identifier: Zlib
2#ifndef DFLTCC_H
3#define DFLTCC_H
4
5#include "../zlib_deflate/defutil.h"
6#include <asm/facility.h>
7#include <asm/setup.h>
8

--- 79 unchanged lines hidden (view full) ---

88#define HTT_DYNAMIC 1
89
90/*
91 * Extension of inflate_state and deflate_state for DFLTCC.
92 */
93struct dfltcc_state {
94 struct dfltcc_param_v0 param; /* Parameter block */
95 struct dfltcc_qaf_param af; /* Available functions */
96 char msg[64]; /* Buffer for strm->msg */
97};
98
99/*
100 * Extension of inflate_state and deflate_state for DFLTCC.
101 */
102struct dfltcc_deflate_state {
103 struct dfltcc_state common; /* Parameter block */
96 uLong level_mask; /* Levels on which to use DFLTCC */
97 uLong block_size; /* New block each X bytes */
98 uLong block_threshold; /* New block after total_in > X */
99 uLong dht_threshold; /* New block only if avail_in >= X */
104 uLong level_mask; /* Levels on which to use DFLTCC */
105 uLong block_size; /* New block each X bytes */
106 uLong block_threshold; /* New block after total_in > X */
107 uLong dht_threshold; /* New block only if avail_in >= X */
100 char msg[64]; /* Buffer for strm->msg */
101};
102
103#define ALIGN_UP(p, size) (__typeof__(p))(((uintptr_t)(p) + ((size) - 1)) & ~((size) - 1))
104/* Resides right after inflate_state or deflate_state */
105#define GET_DFLTCC_STATE(state) ((struct dfltcc_state *)((char *)(state) + ALIGN_UP(sizeof(*state), 8)))
106
108};
109
110#define ALIGN_UP(p, size) (__typeof__(p))(((uintptr_t)(p) + ((size) - 1)) & ~((size) - 1))
111/* Resides right after inflate_state or deflate_state */
112#define GET_DFLTCC_STATE(state) ((struct dfltcc_state *)((char *)(state) + ALIGN_UP(sizeof(*state), 8)))
113
107/* External functions */
108int dfltcc_can_deflate(z_streamp strm);
109int dfltcc_deflate(z_streamp strm,
110 int flush,
111 block_state *result);
112void dfltcc_reset(z_streamp strm, uInt size);
113int dfltcc_can_inflate(z_streamp strm);
114typedef enum {
115 DFLTCC_INFLATE_CONTINUE,
116 DFLTCC_INFLATE_BREAK,
117 DFLTCC_INFLATE_SOFTWARE,
118} dfltcc_inflate_action;
119dfltcc_inflate_action dfltcc_inflate(z_streamp strm,
120 int flush, int *ret);
114void dfltcc_reset_state(struct dfltcc_state *dfltcc_state);
115
121static inline int is_dfltcc_enabled(void)
122{
123return (zlib_dfltcc_support != ZLIB_DFLTCC_DISABLED &&
124 test_facility(DFLTCC_FACILITY));
125}
126
116static inline int is_dfltcc_enabled(void)
117{
118return (zlib_dfltcc_support != ZLIB_DFLTCC_DISABLED &&
119 test_facility(DFLTCC_FACILITY));
120}
121
127#define DEFLATE_RESET_HOOK(strm) \
128 dfltcc_reset((strm), sizeof(deflate_state))
129
130#define DEFLATE_HOOK dfltcc_deflate
131
132#define DEFLATE_NEED_CHECKSUM(strm) (!dfltcc_can_deflate((strm)))
133
134#define DEFLATE_DFLTCC_ENABLED() is_dfltcc_enabled()
135
122#define DEFLATE_DFLTCC_ENABLED() is_dfltcc_enabled()
123
136#define INFLATE_RESET_HOOK(strm) \
137 dfltcc_reset((strm), sizeof(struct inflate_state))
138
139#define INFLATE_TYPEDO_HOOK(strm, flush) \
140 if (dfltcc_can_inflate((strm))) { \
141 dfltcc_inflate_action action; \
142\
143 RESTORE(); \
144 action = dfltcc_inflate((strm), (flush), &ret); \
145 LOAD(); \
146 if (action == DFLTCC_INFLATE_CONTINUE) \
147 break; \
148 else if (action == DFLTCC_INFLATE_BREAK) \
149 goto inf_leave; \
150 }
151
152#define INFLATE_NEED_CHECKSUM(strm) (!dfltcc_can_inflate((strm)))
153
154#define INFLATE_NEED_UPDATEWINDOW(strm) (!dfltcc_can_inflate((strm)))
155
156#endif /* DFLTCC_H */
124#endif /* DFLTCC_H */