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Diffstat (limited to 'arch/s390/dfltcc_detail.h')
-rw-r--r--arch/s390/dfltcc_detail.h176
1 files changed, 103 insertions, 73 deletions
diff --git a/arch/s390/dfltcc_detail.h b/arch/s390/dfltcc_detail.h
index 4ec03f8..411e9f6 100644
--- a/arch/s390/dfltcc_detail.h
+++ b/arch/s390/dfltcc_detail.h
@@ -26,74 +26,6 @@
#endif
/*
- C wrapper for the DEFLATE CONVERSION CALL instruction.
- */
-typedef enum {
- DFLTCC_CC_OK = 0,
- DFLTCC_CC_OP1_TOO_SHORT = 1,
- DFLTCC_CC_OP2_TOO_SHORT = 2,
- DFLTCC_CC_OP2_CORRUPT = 2,
- DFLTCC_CC_AGAIN = 3,
-} dfltcc_cc;
-
-#define DFLTCC_QAF 0
-#define DFLTCC_GDHT 1
-#define DFLTCC_CMPR 2
-#define DFLTCC_XPND 4
-#define HBT_CIRCULAR (1 << 7)
-#define HB_BITS 15
-#define HB_SIZE (1 << HB_BITS)
-#define DFLTCC_FACILITY 151
-
-static inline dfltcc_cc dfltcc(int fn, void *param,
- unsigned char **op1, size_t *len1, z_const unsigned char **op2, size_t *len2, void *hist) {
- unsigned char *t2 = op1 ? *op1 : NULL;
- size_t t3 = len1 ? *len1 : 0;
- z_const unsigned char *t4 = op2 ? *op2 : NULL;
- size_t t5 = len2 ? *len2 : 0;
- Z_REGISTER int r0 __asm__("r0") = fn;
- Z_REGISTER void *r1 __asm__("r1") = param;
- Z_REGISTER unsigned char *r2 __asm__("r2") = t2;
- Z_REGISTER size_t r3 __asm__("r3") = t3;
- Z_REGISTER z_const unsigned char *r4 __asm__("r4") = t4;
- Z_REGISTER size_t r5 __asm__("r5") = t5;
- int cc;
-
- __asm__ volatile(
-#ifdef HAVE_SYS_SDT_H
- STAP_PROBE_ASM(zlib, dfltcc_entry, STAP_PROBE_ASM_TEMPLATE(5))
-#endif
- ".insn rrf,0xb9390000,%[r2],%[r4],%[hist],0\n"
-#ifdef HAVE_SYS_SDT_H
- STAP_PROBE_ASM(zlib, dfltcc_exit, STAP_PROBE_ASM_TEMPLATE(5))
-#endif
- "ipm %[cc]\n"
- : [r2] "+r" (r2)
- , [r3] "+r" (r3)
- , [r4] "+r" (r4)
- , [r5] "+r" (r5)
- , [cc] "=r" (cc)
- : [r0] "r" (r0)
- , [r1] "r" (r1)
- , [hist] "r" (hist)
-#ifdef HAVE_SYS_SDT_H
- , STAP_PROBE_ASM_OPERANDS(5, r2, r3, r4, r5, hist)
-#endif
- : "cc", "memory");
- t2 = r2; t3 = r3; t4 = r4; t5 = r5;
-
- if (op1)
- *op1 = t2;
- if (len1)
- *len1 = t3;
- if (op2)
- *op2 = t4;
- if (len2)
- *len2 = t5;
- return (cc >> 28) & 3;
-}
-
-/*
Parameter Block for Query Available Functions.
*/
#define static_assert(c, msg) __attribute__((unused)) static char static_assert_failed_ ## msg[c ? 1 : -1]
@@ -105,7 +37,8 @@ struct dfltcc_qaf_param {
char reserved2[6];
};
-static_assert(sizeof(struct dfltcc_qaf_param) == 32, sizeof_struct_dfltcc_qaf_param_is_32);
+#define DFLTCC_SIZEOF_QAF 32
+static_assert(sizeof(struct dfltcc_qaf_param) == DFLTCC_SIZEOF_QAF, qaf);
static inline int is_bit_set(const char *bits, int n) {
return bits[n / 8] & (1 << (7 - (n % 8)));
@@ -115,6 +48,8 @@ static inline void clear_bit(char *bits, int n) {
bits[n / 8] &= ~(1 << (7 - (n % 8)));
}
+#define DFLTCC_FACILITY 151
+
#define DFLTCC_FMT0 0
/*
@@ -165,12 +100,16 @@ struct dfltcc_param_v0 {
uint16_t cdhtl : 12; /* Compressed-Dynamic-Huffman Table
Length */
uint8_t reserved464[6];
- uint8_t cdht[288];
- uint8_t reserved[32];
- uint8_t csb[1152];
+ uint8_t cdht[288]; /* Compressed-Dynamic-Huffman Table */
+ uint8_t reserved[24];
+ uint8_t ribm2[8]; /* Reserved for IBM use */
+ uint8_t csb[1152]; /* Continuation-State Buffer */
};
-static_assert(sizeof(struct dfltcc_param_v0) == 1536, sizeof_struct_dfltcc_param_v0_is_1536);
+#define DFLTCC_SIZEOF_GDHT_V0 384
+#define DFLTCC_SIZEOF_CMPR_XPND_V0 1536
+static_assert(offsetof(struct dfltcc_param_v0, csb) == DFLTCC_SIZEOF_GDHT_V0, gdht_v0);
+static_assert(sizeof(struct dfltcc_param_v0) == DFLTCC_SIZEOF_CMPR_XPND_V0, cmpr_xpnd_v0);
static inline z_const char *oesc_msg(char *buf, int oesc) {
if (oesc == 0x00)
@@ -182,6 +121,97 @@ static inline z_const char *oesc_msg(char *buf, int oesc) {
}
/*
+ C wrapper for the DEFLATE CONVERSION CALL instruction.
+ */
+typedef enum {
+ DFLTCC_CC_OK = 0,
+ DFLTCC_CC_OP1_TOO_SHORT = 1,
+ DFLTCC_CC_OP2_TOO_SHORT = 2,
+ DFLTCC_CC_OP2_CORRUPT = 2,
+ DFLTCC_CC_AGAIN = 3,
+} dfltcc_cc;
+
+#define DFLTCC_QAF 0
+#define DFLTCC_GDHT 1
+#define DFLTCC_CMPR 2
+#define DFLTCC_XPND 4
+#define HBT_CIRCULAR (1 << 7)
+#define DFLTCC_FN_MASK ((1 << 7) - 1)
+#define HB_BITS 15
+#define HB_SIZE (1 << HB_BITS)
+
+static inline dfltcc_cc dfltcc(int fn, void *param,
+ unsigned char **op1, size_t *len1,
+ z_const unsigned char **op2, size_t *len2, void *hist) {
+ unsigned char *t2 = op1 ? *op1 : NULL;
+#ifdef Z_MEMORY_SANITIZER
+ unsigned char *orig_t2 = t2;
+#endif
+ size_t t3 = len1 ? *len1 : 0;
+ z_const unsigned char *t4 = op2 ? *op2 : NULL;
+ size_t t5 = len2 ? *len2 : 0;
+ Z_REGISTER int r0 __asm__("r0") = fn;
+ Z_REGISTER void *r1 __asm__("r1") = param;
+ Z_REGISTER unsigned char *r2 __asm__("r2") = t2;
+ Z_REGISTER size_t r3 __asm__("r3") = t3;
+ Z_REGISTER z_const unsigned char *r4 __asm__("r4") = t4;
+ Z_REGISTER size_t r5 __asm__("r5") = t5;
+ int cc;
+
+ __asm__ volatile(
+#ifdef HAVE_SYS_SDT_H
+ STAP_PROBE_ASM(zlib, dfltcc_entry, STAP_PROBE_ASM_TEMPLATE(5))
+#endif
+ ".insn rrf,0xb9390000,%[r2],%[r4],%[hist],0\n"
+#ifdef HAVE_SYS_SDT_H
+ STAP_PROBE_ASM(zlib, dfltcc_exit, STAP_PROBE_ASM_TEMPLATE(5))
+#endif
+ "ipm %[cc]\n"
+ : [r2] "+r" (r2)
+ , [r3] "+r" (r3)
+ , [r4] "+r" (r4)
+ , [r5] "+r" (r5)
+ , [cc] "=r" (cc)
+ : [r0] "r" (r0)
+ , [r1] "r" (r1)
+ , [hist] "r" (hist)
+#ifdef HAVE_SYS_SDT_H
+ , STAP_PROBE_ASM_OPERANDS(5, r2, r3, r4, r5, hist)
+#endif
+ : "cc", "memory");
+ t2 = r2; t3 = r3; t4 = r4; t5 = r5;
+
+#ifdef Z_MEMORY_SANITIZER
+ switch (fn & DFLTCC_FN_MASK) {
+ case DFLTCC_QAF:
+ __msan_unpoison(param, DFLTCC_SIZEOF_QAF);
+ break;
+ case DFLTCC_GDHT:
+ __msan_unpoison(param, DFLTCC_SIZEOF_GDHT_V0);
+ break;
+ case DFLTCC_CMPR:
+ __msan_unpoison(param, DFLTCC_SIZEOF_CMPR_XPND_V0);
+ __msan_unpoison(orig_t2, t2 - orig_t2 + (((struct dfltcc_param_v0 *)param)->sbb == 0 ? 0 : 1));
+ break;
+ case DFLTCC_XPND:
+ __msan_unpoison(param, DFLTCC_SIZEOF_CMPR_XPND_V0);
+ __msan_unpoison(orig_t2, t2 - orig_t2);
+ break;
+ }
+#endif
+
+ if (op1)
+ *op1 = t2;
+ if (len1)
+ *len1 = t3;
+ if (op2)
+ *op2 = t4;
+ if (len2)
+ *len2 = t5;
+ return (cc >> 28) & 3;
+}
+
+/*
Extension of inflate_state and deflate_state. Must be doubleword-aligned.
*/
struct dfltcc_state {
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-03 02:55:29 +0000