From: Peter Lieven <pl@kamp.de>
To: qemu-devel@nongnu.org
Cc: quintela@redhat.com, Stefan Hajnoczi <stefanha@gmail.com>,
Peter Lieven <pl@kamp.de>, Orit Wasserman <owasserm@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>
Subject: [Qemu-devel] [PATCHv4 1/9] move vector definitions to qemu-common.h
Date: Fri, 22 Mar 2013 13:46:02 +0100 [thread overview]
Message-ID: <1363956370-23681-2-git-send-email-pl@kamp.de> (raw)
In-Reply-To: <1363956370-23681-1-git-send-email-pl@kamp.de>
vector optimizations will now be used at various places
not just in is_dup_page() in arch_init.c
this patch also adds a zero splat vector.
Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
---
arch_init.c | 20 --------------------
include/qemu-common.h | 24 ++++++++++++++++++++++++
2 files changed, 24 insertions(+), 20 deletions(-)
diff --git a/arch_init.c b/arch_init.c
index 98e2bc6..1b71912 100644
--- a/arch_init.c
+++ b/arch_init.c
@@ -114,26 +114,6 @@ const uint32_t arch_type = QEMU_ARCH;
#define RAM_SAVE_FLAG_CONTINUE 0x20
#define RAM_SAVE_FLAG_XBZRLE 0x40
-#ifdef __ALTIVEC__
-#include <altivec.h>
-#define VECTYPE vector unsigned char
-#define SPLAT(p) vec_splat(vec_ld(0, p), 0)
-#define ALL_EQ(v1, v2) vec_all_eq(v1, v2)
-/* altivec.h may redefine the bool macro as vector type.
- * Reset it to POSIX semantics. */
-#undef bool
-#define bool _Bool
-#elif defined __SSE2__
-#include <emmintrin.h>
-#define VECTYPE __m128i
-#define SPLAT(p) _mm_set1_epi8(*(p))
-#define ALL_EQ(v1, v2) (_mm_movemask_epi8(_mm_cmpeq_epi8(v1, v2)) == 0xFFFF)
-#else
-#define VECTYPE unsigned long
-#define SPLAT(p) (*(p) * (~0UL / 255))
-#define ALL_EQ(v1, v2) ((v1) == (v2))
-#endif
-
static struct defconfig_file {
const char *filename;
diff --git a/include/qemu-common.h b/include/qemu-common.h
index 7754ee2..e76ade3 100644
--- a/include/qemu-common.h
+++ b/include/qemu-common.h
@@ -448,4 +448,28 @@ int uleb128_decode_small(const uint8_t *in, uint32_t *n);
void hexdump(const char *buf, FILE *fp, const char *prefix, size_t size);
+/* vector definitions */
+#ifdef __ALTIVEC__
+#include <altivec.h>
+#define VECTYPE vector unsigned char
+#define SPLAT(p) vec_splat(vec_ld(0, p), 0)
+#define ZERO_SPLAT vec_splat(vec_ld(0, 0), 0)
+#define ALL_EQ(v1, v2) vec_all_eq(v1, v2)
+/* altivec.h may redefine the bool macro as vector type.
+ * Reset it to POSIX semantics. */
+#undef bool
+#define bool _Bool
+#elif defined __SSE2__
+#include <emmintrin.h>
+#define VECTYPE __m128i
+#define SPLAT(p) _mm_set1_epi8(*(p))
+#define ZERO_SPLAT _mm_setzero_si128()
+#define ALL_EQ(v1, v2) (_mm_movemask_epi8(_mm_cmpeq_epi8(v1, v2)) == 0xFFFF)
+#else
+#define VECTYPE unsigned long
+#define SPLAT(p) (*(p) * (~0UL / 255))
+#define ZERO_SPLAT 0x0UL
+#define ALL_EQ(v1, v2) ((v1) == (v2))
+#endif
+
#endif
--
1.7.9.5
next prev parent reply other threads:[~2013-03-22 12:58 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-22 12:46 [Qemu-devel] [PATCHv4 0/9] buffer_is_zero / migration optimizations Peter Lieven
2013-03-22 12:46 ` Peter Lieven [this message]
2013-03-25 8:35 ` [Qemu-devel] [PATCHv4 1/9] move vector definitions to qemu-common.h Orit Wasserman
2013-03-22 12:46 ` [Qemu-devel] [PATCHv4 2/9] cutils: add a function to find non-zero content in a buffer Peter Lieven
2013-03-22 19:37 ` Eric Blake
2013-03-22 20:03 ` Peter Lieven
2013-03-22 20:22 ` [Qemu-devel] indentation hints [was: [PATCHv4 2/9] cutils: add a function to find non-zero content in a buffer] Eric Blake
2013-03-23 11:18 ` Peter Maydell
2013-03-25 8:53 ` [Qemu-devel] [PATCHv4 2/9] cutils: add a function to find non-zero content in a buffer Orit Wasserman
2013-03-25 8:56 ` Peter Lieven
2013-03-25 9:26 ` Orit Wasserman
2013-03-25 9:42 ` Paolo Bonzini
2013-03-25 10:03 ` Orit Wasserman
2013-03-22 12:46 ` [Qemu-devel] [PATCHv4 3/9] buffer_is_zero: use vector optimizations if possible Peter Lieven
2013-03-25 8:53 ` Orit Wasserman
2013-03-22 12:46 ` [Qemu-devel] [PATCHv4 4/9] bitops: use vector algorithm to optimize find_next_bit() Peter Lieven
2013-03-25 9:04 ` Orit Wasserman
2013-03-22 12:46 ` [Qemu-devel] [PATCHv4 5/9] migration: search for zero instead of dup pages Peter Lieven
2013-03-22 19:49 ` Eric Blake
2013-03-22 20:02 ` Peter Lieven
2013-03-25 9:30 ` Orit Wasserman
2013-03-22 12:46 ` [Qemu-devel] [PATCHv4 6/9] migration: add an indicator for bulk state of ram migration Peter Lieven
2013-03-25 9:32 ` Orit Wasserman
2013-03-22 12:46 ` [Qemu-devel] [PATCHv4 7/9] migration: do not sent zero pages in bulk stage Peter Lieven
2013-03-22 20:13 ` Eric Blake
2013-03-25 9:44 ` Orit Wasserman
2013-03-22 12:46 ` [Qemu-devel] [PATCHv4 8/9] migration: do not search dirty " Peter Lieven
2013-03-25 10:05 ` Orit Wasserman
2013-03-22 12:46 ` [Qemu-devel] [PATCHv4 9/9] migration: use XBZRLE only after " Peter Lieven
2013-03-25 10:16 ` Orit Wasserman
2013-03-22 17:25 ` [Qemu-devel] [PATCHv4 0/9] buffer_is_zero / migration optimizations Paolo Bonzini
2013-03-22 19:20 ` Peter Lieven
2013-03-22 21:24 ` Paolo Bonzini
2013-03-23 7:34 ` Peter Lieven
2013-03-25 10:17 ` Peter Lieven
2013-03-25 10:53 ` Paolo Bonzini
2013-03-25 11:26 ` Peter Lieven
2013-03-25 13:02 ` Paolo Bonzini
2013-03-25 13:23 ` Peter Lieven
2013-03-25 13:32 ` Peter Lieven
2013-03-25 14:34 ` Paolo Bonzini
2013-03-25 21:37 ` Peter Lieven
2013-03-26 8:14 ` Peter Lieven
2013-03-26 9:20 ` Paolo Bonzini
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