@@ -191,6 +191,12 @@ extern int zlib_deflate_workspacesize (int windowBits, int memLevel);
exceed those passed here.
*/
+extern int zlib_deflate_dfltcc_enabled (void);
+/*
+ Returns 1 if Deflate-Conversion facility is installed and enabled,
+ otherwise 0.
+*/
+
/*
extern int deflateInit (z_streamp strm, int level);
@@ -59,6 +59,7 @@
#define DEFLATE_RESET_HOOK(strm) do {} while (0)
#define DEFLATE_HOOK(strm, flush, bstate) 0
#define DEFLATE_NEED_CHECKSUM(strm) 1
+#define DEFLATE_DFLTCC_ENABLED() 0
#endif
/* ===========================================================================
@@ -1138,3 +1139,8 @@ int zlib_deflate_workspacesize(int windowBits, int memLevel)
+ zlib_deflate_head_memsize(memLevel)
+ zlib_deflate_overlay_memsize(memLevel);
}
+
+int zlib_deflate_dfltcc_enabled(void)
+{
+ return DEFLATE_DFLTCC_ENABLED();
+}
@@ -12,6 +12,7 @@
#include <linux/zlib.h>
EXPORT_SYMBOL(zlib_deflate_workspacesize);
+EXPORT_SYMBOL(zlib_deflate_dfltcc_enabled);
EXPORT_SYMBOL(zlib_deflate);
EXPORT_SYMBOL(zlib_deflateInit2);
EXPORT_SYMBOL(zlib_deflateEnd);
@@ -3,6 +3,8 @@
#define DFLTCC_H
#include "../zlib_deflate/defutil.h"
+#include <asm/facility.h>
+#include <asm/setup.h>
/*
* Tuning parameters.
@@ -14,6 +16,8 @@
#define DFLTCC_DHT_MIN_SAMPLE_SIZE 4096
#define DFLTCC_RIBM 0
+#define DFLTCC_FACILITY 151
+
/*
* Parameter Block for Query Available Functions.
*/
@@ -113,6 +117,11 @@ typedef enum {
} dfltcc_inflate_action;
dfltcc_inflate_action dfltcc_inflate(z_streamp strm,
int flush, int *ret);
+static inline int is_dfltcc_enabled(void)
+{
+return (zlib_dfltcc_support != ZLIB_DFLTCC_DISABLED &&
+ test_facility(DFLTCC_FACILITY));
+}
#define DEFLATE_RESET_HOOK(strm) \
dfltcc_reset((strm), sizeof(deflate_state))
@@ -121,6 +130,8 @@ dfltcc_inflate_action dfltcc_inflate(z_streamp strm,
#define DEFLATE_NEED_CHECKSUM(strm) (!dfltcc_can_deflate((strm)))
+#define DEFLATE_DFLTCC_ENABLED() is_dfltcc_enabled()
+
#define INFLATE_RESET_HOOK(strm) \
dfltcc_reset((strm), sizeof(struct inflate_state))
@@ -3,8 +3,6 @@
#define DFLTCC_UTIL_H
#include <linux/zutil.h>
-#include <asm/facility.h>
-#include <asm/setup.h>
/*
* C wrapper for the DEFLATE CONVERSION CALL instruction.
@@ -24,7 +22,6 @@ typedef enum {
#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,
@@ -101,12 +98,6 @@ static inline int dfltcc_are_params_ok(
(strategy == Z_DEFAULT_STRATEGY);
}
-static inline int is_dfltcc_enabled(void)
-{
- return (zlib_dfltcc_support != ZLIB_DFLTCC_DISABLED &&
- test_facility(DFLTCC_FACILITY));
-}
-
char *oesc_msg(char *buf, int oesc);
#endif /* DFLTCC_UTIL_H */