From: "David S. Miller" <davem@davemloft.net>
To: libc-hacker@sources.redhat.com
Subject: [PATCH]: Recognize HWCAP_SPARC_BLKINIT
Date: Fri, 24 Feb 2006 23:37:00 -0000 [thread overview]
Message-ID: <20060224.153709.86558879.davem@davemloft.net> (raw)
SUN4V Niagara processors have a load-twin/block-init-store capability
which is indicated by bit 6 in the HWCAP_* mask from the kernel.
Add recognition of that value to glibc, and ask it to use "v9v"
in the library search path.
2006-02-24 David S. Miller <davem@sunset.davemloft.net>
* elf/elf.h: Add HWCAP_SPARC_BLKINIT.
* sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.c: Add "v9v"
entry to _dl_sparc32_cap_flags.
* sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.h: Add
HWCAP_SPARC_BLKINIT to HWCAP_IMPORTANT.
* sysdeps/unix/sysv/linux/sparc/sparc64/dl-procinfo.c: Add "v9v"
entry to _dl_sparc32_cap_flags.
* sysdeps/unix/sysv/linux/sparc/sparc64/dl-procinfo.h: Add
HWCAP_SPARC_BLKINIT to HWCAP_IMPORTANT.
--- ./elf/elf.h.~1~ 2006-02-23 16:01:13.000000000 -0800
+++ ./elf/elf.h 2006-02-23 16:01:18.000000000 -0800
@@ -1258,6 +1258,7 @@ typedef struct
#define HWCAP_SPARC_MULDIV 8
#define HWCAP_SPARC_V9 16 /* The cpu is v9, so v8plus is ok. */
#define HWCAP_SPARC_ULTRA3 32
+#define HWCAP_SPARC_BLKINIT 64 /* Sun4v with block-init/load-twin. */
/* MIPS R3000 specific definitions. */
--- ./sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.c.~1~ 2006-02-23 16:01:14.000000000 -0800
+++ ./sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.c 2006-02-23 16:01:18.000000000 -0800
@@ -47,11 +47,11 @@
#if !defined PROCINFO_DECL && defined SHARED
._dl_sparc32_cap_flags
#else
-PROCINFO_CLASS const char _dl_sparc32_cap_flags[6][7]
+PROCINFO_CLASS const char _dl_sparc32_cap_flags[7][7]
#endif
#ifndef PROCINFO_DECL
= {
- "flush", "stbar", "swap", "muldiv", "v9", "ultra3"
+ "flush", "stbar", "swap", "muldiv", "v9", "ultra3", "v9v"
}
#endif
#if !defined SHARED || defined PROCINFO_DECL
--- ./sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.h.~1~ 2006-02-23 16:01:14.000000000 -0800
+++ ./sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.h 2006-02-23 16:01:18.000000000 -0800
@@ -62,7 +62,7 @@ _dl_string_hwcap (const char *str)
return -1;
};
-#define HWCAP_IMPORTANT (HWCAP_SPARC_V9|HWCAP_SPARC_ULTRA3)
+#define HWCAP_IMPORTANT (HWCAP_SPARC_V9|HWCAP_SPARC_ULTRA3|HWCAP_SPARC_BLKINIT)
/* There are no different platforms defined. */
#define _dl_platform_string(idx) ""
--- ./sysdeps/unix/sysv/linux/sparc/sparc64/dl-procinfo.c.~1~ 2006-02-23 16:01:14.000000000 -0800
+++ ./sysdeps/unix/sysv/linux/sparc/sparc64/dl-procinfo.c 2006-02-23 16:01:18.000000000 -0800
@@ -47,11 +47,11 @@
#if !defined PROCINFO_DECL && defined SHARED
._dl_sparc64_cap_flags
#else
-PROCINFO_CLASS const char _dl_sparc64_cap_flags[6][7]
+PROCINFO_CLASS const char _dl_sparc64_cap_flags[7][7]
#endif
#ifndef PROCINFO_DECL
= {
- "flush", "stbar", "swap", "muldiv", "v9", "ultra3"
+ "flush", "stbar", "swap", "muldiv", "v9", "ultra3", "v9v"
}
#endif
#if !defined SHARED || defined PROCINFO_DECL
--- ./sysdeps/unix/sysv/linux/sparc/sparc64/dl-procinfo.h.~1~ 2006-02-23 16:01:14.000000000 -0800
+++ ./sysdeps/unix/sysv/linux/sparc/sparc64/dl-procinfo.h 2006-02-23 16:01:18.000000000 -0800
@@ -63,7 +63,7 @@ _dl_string_hwcap (const char *str)
return -1;
};
-#define HWCAP_IMPORTANT (HWCAP_SPARC_ULTRA3)
+#define HWCAP_IMPORTANT (HWCAP_SPARC_ULTRA3|HWCAP_SPARC_BLKINIT)
/* There are no different platforms defined. */
#define _dl_platform_string(idx) ""
next reply other threads:[~2006-02-24 23:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-24 23:37 David S. Miller [this message]
2006-02-25 1:49 ` Roland McGrath
2006-02-25 1:51 ` David S. Miller
2006-02-25 1:59 ` Roland McGrath
2006-02-25 1:59 ` David S. Miller
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